CN103428752B

CN103428752B - Radio link quality monitoring method and device, wireless transmitter receiver unit

Info

Publication number: CN103428752B
Application number: CN201210163127.6A
Authority: CN
Inventors: 罗丽云; 董霄剑; 梁璟
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2012-05-22
Filing date: 2012-05-22
Publication date: 2016-08-10
Anticipated expiration: 2032-05-22
Also published as: CN103428752A

Abstract

The embodiment of the invention discloses a kind of radio link quality monitoring method and device, wireless transmitter receiver unit, wherein, method includes: receive radio frame signal by down wireless link, and according to the default acquisition cycle, obtain signal to noise ratio and/or the Block Error Rate of Traffic Channel of pilot signal in radio frame signal；According to the signal to noise ratio obtained and/or the Block Error Rate of Traffic Channel, in conjunction with the Block Error Rate of Physical Downlink Control Channel, it is determined that described down wireless link synchronizes or step-out.The embodiment of the present invention can improve accuracy and the reliability of radio link quality monitoring.

Description

Radio link quality monitoring method and device, wireless transmitter receiver unit

Technical field

The present invention relates to communication technology, especially a kind of radio link quality monitoring method and device, Wireless transmitter receiver unit.

Background technology

Long Term Evolution (Long Term Evolution, hereinafter referred to as: LTE) communication system is 3 g mobile communication system (The 3rd Generation Telecommunication, below letter Claim: evolution 3G).Different from the circuit switched mode that conventional cellular system is used, LTE Communication system only supports packet switching service, is provided that higher service transmission rate, The uplink and downlink peak data rate provided in 20MHz bandwidth be respectively 100Mbit/s and 50Mbit/s, provides the user more rich service.

LTE communication system can use FDD under a unified framework simultaneously (Frequency Division Duplex, hereinafter referred to as: FDD) and time division duplex (Time Division Duplex, hereinafter referred to as: TDD) pattern.Wherein, tdd mode is used LTE communication system is also referred to as TD-LTE system.Fig. 1 is TD-LTE under 5ms switching cycle A wireless frame structure schematic diagram in system.As it is shown in figure 1, each radio frames is a length of T_f=307200·T_s=10ms, by two a length of 153600 T_sThe field composition of=5ms.Often Individual field is by five a length of 30720 T_sThe subframe composition of=1ms, when the most each subframe is containing two Gap (Slot).Wherein, T_sFor basic time unit (Basic time unit), T_s=1/(15000×2048)s.As shown in table 1 below, prop up for wireless frame structure in TD-LTE system Uplink and downlink link (Uplink, Downlink, hereinafter referred to as: the UL/DL) allocation list held.

The UL/DL allocation list that in table 1TD-LTE system, frame structure is supported

Seeing above-mentioned table 1, for each subframe in a radio frames, " D " expression is exclusively used in down The subframe of row transmission, " U " represents the subframe being exclusively used in uplink, and " S " represents for descending chain Road pilot time slot (DwPTS), protection time slot (GP) and uplink pilot time slot (UpPTS) special subframe in these three territory.See Fig. 1, DwPTS, GP and UpPTS Total length be 30720 T_s=1ms.Each subframe i is represented, often by 2 time slot 2i and 2i+1 The a length of T of individual time slot_slot=15360·T_s=0.5ms.LTE communication system is supported in tdd mode The up-downgoing switching cycle of 5ms and 10ms.If the downstream-to-upstream transfer point cycle is 5ms, Special subframe can be present in two fields；If downstream-to-upstream transfer point cycle 10ms, special Different subframe exists only in first field.Subframe 0 and subframe 5 and DwPTS are always used for Downlink transfer.UpPTS and be exclusively used in uplink immediately following subframe after special subframe.

UMTS in early days (Universal Mobile Telecom System, In hereinafter referred to as: UMTS), fast closed-loop power is used to control to support that data rate is the most not The circuit-switched service become.And in LTE communication system, high-speed packet accesses (Hight Link circuit self-adapting Speed Packet Access, hereinafter referred to as: HSPA) and in LTE is dynamic Ground adjustment information data rate, with according to wireless channel to each user's match channels capacity, claimed For link circuit self-adapting and based on Adaptive Modulation and Coding (Adaptive Modulation Coding, Hereinafter referred to as: AMC) technology.But under special circumstances, such as wireless communications environment is severe Time, still suffer from the situation that communication quality is very poor.Therefore, for setting up business on wireless links Subscriber equipment (User Equipment, hereinafter referred to as: UE), will monitor descending radio chains always Road quality, when radio link quality is less than certain standard, referred to as radio link failure, now, UE will stop ascending power and launch, to reduce the interference of other user in communication system, simultaneously Reduce power consumption.After quality of down wireless link improves, if higher than certain standard, referred to as radio chains Road synchronizes, and now, UE will restart ascending power and launch.

According to third generation partner program (the 3rd Generation Partnership Project, hereinafter referred to as: the 3GPP) regulation of specification 36.133, UE monitors descending radio chains Road quality, received signal quality of based on pilot signal estimates channel quality, and with pre-set Step-out threshold value (Qout)/synchronous gate limit value (Qin) compares, thus judges wireless link Synchronize or step-out.Wherein, Qout is step-out threshold value, when quality of down wireless link is not up to During Qout, UE can not receive down wireless link signal reliably.Qin is synchronization threshold, when When quality of down wireless link reaches Qin, descending nothing can be received reliably relative to Qout, UE Wired link signal.

In communication process, for assistant base station (also referred to as: enode b or eNodeB, Hereinafter referred to as: eNB) select to use suitably modulation and coding (Modulation and Coding Scheme, hereinafter referred to as: MCS) mode, UE needs the descending chain from LTE communication system Reference signal (Reference Signal, hereinafter referred to as: the RS) quality that road receives obtains letter Road quality instruction (Channel Quality Indicator, hereinafter referred to as: CQI) information also reports To eNB.UE be specifically based on a set of Block Error Rate (Block Error Ratio, hereinafter referred to as: BLER) threshold value selects suitable CQI value, and this BLER threshold value is BLER≦10%.But the lowest to the BLER of Physical Downlink Control Channel (PDCCH), one As < 10%.Therefore, we can qualitative think, wireless environment corresponding for Qout is very severe, That is: UE just can close transmitter in the case of wireless environment is very poor.

During realizing the present invention, inventor finds, prior art monitoring down wireless link At least there is problems in that during quality

In prior art, determine threshold value Qin according to the BLER of PDCCH under particular configuration With Qout, the BLER of PDCCH therein include Physical Control Format Indicator Channel (PCFICH) BLER.But, in applying due to practical communication, in fact it could happen that UE does not has There is the situation being scheduled, the most successfully detecting the PDCCH belonging to this UE, cause being difficult to measure The BLER(of PDCCH includes the BLER of PCFICH), thus hold the most very much Erroneous judgement easily occurs；It addition, in existing LTE communication system, along with the reception of pilot signal is believed The change of number quality, transmitter mates the information data rate of each UE as possible, use link from Adapt to and based on AMC, and according to specifically configuring statistics when monitoring radio link quality The BLER(of PDCCH includes the BLER of PCFICH), due to threshold value Qin and Qout It is static, it is impossible to change along with the change of wireless environment and the change of link circuit self-adapting, cause The highest to the reliability of radio link quality monitoring.

Summary of the invention

The embodiment of the present invention is to be solved be technical problem is that: provide a kind of radio link quality monitoring Method and apparatus, wireless transmitter receiver unit, with improve radio link quality monitoring accuracy with Reliability.

A kind of radio link quality monitoring method that the embodiment of the present invention provides, including:

Receive radio frame signal by down wireless link, and according to the default acquisition cycle, obtain nothing The signal to noise ratio of pilot signal and/or the Block Error Rate of Traffic Channel in line frame signal；

According to the signal to noise ratio obtained and/or the Block Error Rate of Traffic Channel, control letter in conjunction with physical down The Block Error Rate in road, it is determined that described down wireless link synchronizes or step-out.

A kind of radio link quality monitoring device that the embodiment of the present invention provides, including:

Receive unit, for receiving radio frame signal by down wireless link；

Acquiring unit, for according to the default acquisition cycle, obtains pilot tone letter in described radio frame signal Number signal to noise ratio and/or the Block Error Rate of Traffic Channel；

Decision unit, for the signal to noise ratio that obtains according to described acquiring unit and/or Traffic Channel Block Error Rate, and combine the Block Error Rate of Physical Downlink Control Channel, it is determined that described down wireless link is same Step or step-out.

The embodiment of the present invention provide a kind of wireless transmitter receiver unit, including physical layer element with relatively High level elements；

Described physical layer element is used for receiving radio frame signal by down wireless link, and according in advance If the cycle of acquisition, obtain signal to noise ratio and/or the mistake of Traffic Channel of pilot signal in radio frame signal Block rate；According to the signal to noise ratio obtained and/or the Block Error Rate of Traffic Channel, and combine physical down control The Block Error Rate of channel processed, it is determined that described down wireless link synchronizes or step-out, and to higher level list Unit sends wireless link synchronization instruction or radio link failure instruction；

Described higher level unit for receive physical layer element send wireless link synchronization instruction or Radio link failure indicates.

A kind of subscriber equipment that the embodiment of the present invention provides, provides including the above embodiment of the present invention Wireless transmitter receiver unit.

The radio link quality monitoring method and the device that there is provided based on the above embodiment of the present invention, wireless Launch and receive unit and subscriber equipment, be not limited to add up the BLER of PDCCH, by descending After wireless link receives radio frame signal, can be obtained this receive according to the default acquisition cycle Radio frame signal in the signal to noise ratio of pilot signal and/or the BLER of Traffic Channel, with specific reference to obtaining The SNR taken and/or the BLER of Traffic Channel, and combine the BLER of PDCCH, judge Down wireless link synchronizes or step-out.

Combine the BLER of PDCCH according to the signal to noise ratio of pilot signal in radio frame signal, sentence When fixing row wireless link synchronization or step-out, even if UE is not scheduled, cannot successfully detect Belong to the PDCCH of this UE, it is also possible to determined descending wireless by the signal to noise ratio of pilot signal Link-quality, thus improve the reliability that down wireless link synchronizes or step-out judges；Separately Outward, the BLER threshold value of the PDCCH set even from specific configuration cannot be common to The actual disposition of current communication networks, the signal to noise ratio of reference pilot signal, improve descending radio chains Road synchronize or step-out judge reliability and accuracy.

According to the BLER of Traffic Channel, when judging down wireless link synchronization or step-out, i.e. The BLER threshold value making the PDCCH according to specific configuration setting cannot be common to current logical The actual disposition of communication system, with reference to the BLER of Traffic Channel, improves down wireless link and synchronizes Or the reliability of step-out judgement and accuracy.

Thus, in the embodiment of the present invention, based on the signal to noise ratio of pilot signal in radio frame signal and/ Or the BLER of Traffic Channel, in conjunction with the BLER of PDCCH, the received signal quality obtained Change, can dynamically obtain radio link quality, it is contemplated that the change of wireless environment and link from The change the adapted to impact on radio link quality, the noise of pilot signal in comprehensive wireless frame signal Ratio and/or the BLER of Traffic Channel, the BLER in conjunction with PDCCH determine descending radio chains Road quality, it is to avoid the BLER only relying on PDCCH may go out to adjudicate radio link quality Existing erroneous judgement and the relatively low problem of decision reliability, improve the accurate of radio link quality monitoring Property and reliability.

Below by drawings and Examples, technical scheme is done and further retouches in detail State.

Accompanying drawing explanation

In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will The accompanying drawing used required in embodiment or description of the prior art is briefly described, it is clear that Ground, the accompanying drawing in describing below is only some embodiments of the present invention, skill common for this area From the point of view of art personnel, in the case of being made without creative invention, it is also possible to according to these accompanying drawings Obtain other accompanying drawing.

Fig. 1 is a frame structure schematic diagram under 5ms switching cycle in TD-LTE system.

Fig. 2 is the flow chart of one embodiment of radio link quality monitoring method of the present invention.

Fig. 3 is the flow chart of radio link quality another embodiment of monitoring method of the present invention.

Fig. 4 is the flow chart of radio link quality another embodiment of monitoring method of the present invention.

Fig. 5 is the flow chart of radio link quality monitoring method further embodiment of the present invention.

Fig. 6 is the flow chart of radio link quality monitoring method a still further embodiment of the present invention.

Fig. 7 is the flow chart of radio link quality another embodiment of monitoring method of the present invention.

Fig. 8 is the structural representation of one embodiment of radio link quality monitoring device of the present invention.

Fig. 9 is the structural representation of radio link quality another embodiment of monitoring device of the present invention.

Figure 10 is the structural representation of mono-embodiment of WTRU of the present invention.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, to the technical scheme in the embodiment of the present invention It is clearly and completely described, it is clear that described embodiment is only that a part of the present invention is real Execute example rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill The every other embodiment that personnel are obtained under not making creative work premise, broadly falls into this The scope of invention protection.

Fig. 2 is the flow chart of one embodiment of radio link quality monitoring method of the present invention.Such as Fig. 2 Shown in, this embodiment radio link quality monitoring method includes:

101, receive radio frame signal by down wireless link, and according to the default acquisition cycle, Obtain signal to noise ratio (the Signal To Noise of pilot signal in this radio frame signal received Ratio, hereinafter referred to as: SNR) and/or the BLER of Traffic Channel.

Exemplarily, the Traffic Channel in various embodiments of the present invention includes but not limited to that physical down is altogether Enjoy channel (Physical Downlink Shared Channel, hereinafter referred to as: PDSCH).

Radio frame signal therein is the information that radio frames is carried.An example according to the present invention and Unrestricted, the SNR of pilot signal in radio frame signal can be obtained in the following way: obtain nothing Available signal power value s in line frame signal and noise power value n；For example, it is possible to nothing Pilot signal in line frame signal carries out estimating channel, noise reduction process successively, obtains multiple useful Footpath, and the mean power obtaining the plurality of useful footpath obtains available signal power value s, and obtain On master sync signal (PSS) in radio frame signal or secondary synchronizing signal (SSS) limit many The mean power of individual subcarrier obtains noise power value n；Obtain and preset s/n in the acquisition cycle Meansigma methods, obtain presetting in the acquisition cycle pilot signal in radio frame signal

An example according to the present invention and unrestricted, Traffic Channel can be obtained in the following way BLER: obtain and preset CRC (Cyclic Redundancy in the acquisition cycle Check, hereinafter referred to as: CRC) the business data transmission block number A in the Traffic Channel of mistake, By business data transmission block number B total in the Traffic Channel that receives in A and default acquisition cycle Ratio A/B, obtain and preset the BLER of Traffic Channel in the acquisition cycle.

103, according to the SNR obtained and/or the BLER of Traffic Channel, and combine PDCCH BLER, it is determined that down wireless link synchronize or step-out.

The BLER of PDCCH therein includes the BLER of PCFICH.

In prior art, if UE is not scheduled, then cannot successfully detect and belong to this UE's The BLER of PDCCH.During it addition, carry out radio link quality monitoring, it is determined that wireless link loses The condition of step is the BLER < 10% of PDCCH under particular configuration, in practical communication system, There is various configurations situation, the thresholding that BLER is 10% of the PDCCH arranged under particular configuration It is the most unreliable to be worth.

The radio link quality monitoring method that the above embodiment of the present invention provides, is not limited to statistics The BLER of PDCCH, after receiving radio frame signal by down wireless link, can be according to Preset the acquisition cycle, obtain SNR and/or the industry of pilot signal in this radio frame signal received The BLER of business channel, with specific reference to the SNR obtained and/or the BLER of Traffic Channel, and ties Close the BLER of PDCCH, judge that described down wireless link synchronizes or step-out.

Combine the BLER of PDCCH according to the signal to noise ratio of pilot signal in radio frame signal, sentence When fixing row wireless link synchronization or step-out, even if UE is not scheduled, cannot successfully detect Belong to the PDCCH of this UE, it is also possible to determine descending radio chains by the SNR of pilot signal Road quality, thus improve the reliability that down wireless link synchronizes or step-out judges；It addition, BLER threshold value even from the PDCCH of specific configuration setting cannot be common to currently The actual disposition of communication system, the SNR of reference pilot signal, improve down wireless link and synchronize Or the reliability of step-out judgement and accuracy.

Thus, in the embodiment of the present invention, based in radio frame signal pilot signal SNR and/or The BLER of Traffic Channel, in conjunction with the BLER of PDCCH, the received signal quality obtained Change, can dynamically obtain radio link quality, it is contemplated that change and the link of wireless environment are adaptive The change the answered impact on radio link quality, the SNR of pilot signal in comprehensive wireless frame signal And/or the BLER of Traffic Channel, the BLER in conjunction with PDCCH determine down wireless link Quality, it is to avoid the BLER only relying on PDCCH is likely to occur to adjudicate radio link quality Erroneous judgement and the relatively low problem of decision reliability, improve the accuracy of radio link quality monitoring With reliability.

Fig. 3 is the flow chart of radio link quality another embodiment of monitoring method of the present invention.Such as figure Shown in 3, this embodiment radio link quality monitoring method includes:

201, receive radio frame signal by down wireless link, and according to the default acquisition cycle, Obtain the SNR of pilot signal in this radio frame signal received.

203, compare the SNR and pre-determined synchronization SNR threshold value SNR got_in, preset step-out SNR threshold value SNR_outRelation.

Specifically, SNR_in、SNR_outCan correspond respectively under same wireless link quality conditions The BLER threshold value of PDCCH.Such as, if it is determined that the pre-determined synchronization of wireless link synchronization The BLER threshold value of PDCCH is 2%, then SNR_inIt can be the BLER value of PDCCH It is SNR value corresponding to radio link quality when 2%；If it is determined that presetting of radio link failure is same The BLER threshold value of step PDCCH is 10%, then SNR_outCan be PDCCH BLER value is the SNR value that radio link quality when 10% is corresponding.Wherein, SNR_out, pre- If the BLER threshold value of step-out PDCCH is step-out threshold value, when quality of down wireless link not When reaching step-out threshold value, UE can not receive down wireless link signal reliably.SNR_in, preset The BLER threshold value synchronizing PDCCH is synchronization threshold, when quality of down wireless link reaches During synchronization threshold, relative to step-out threshold value, UE can receive down wireless link signal reliably.

If the SNR got is more than or equal to SNR_in, it is believed that meet synchronous condition, perform 205 Operation.If the SNR got is less than SNR_out, it is believed that meet step-out condition, perform 207 Operation.Otherwise, if the SNR got is more than or equal to SNR_outAnd less than SNR_in, hold The operation of row 209.

205, respectively by the enumerator Counter of synchronous regime_inEnumerator with all states Counter_sumCumulative 1.Wherein, Counter_sumEnumerator equal to desynchronizing state Counter_out、Counter_in, and the enumerator Counter of intermediateness_medSum, middle State between desynchronizing state and synchronous regime, belong to both be unsatisfactory for synchronous condition also be unsatisfactory for lose State during step condition, Counter_outInitial value within each desynchronizing state assessment cycle is Zero.

Afterwards, the operation of 211 is performed.

207, respectively by Counter_outWith Counter_sumCumulative 1.

Afterwards, the operation of 211 is performed.

209, respectively by Counter_medWith Counter_sumCumulative 1.

Afterwards, the operation of 211 is performed.

211, according to Counter_out、Counter_inBLER with PDCCH, it is determined that descending Wireless link synchronization or step-out.

The radio link quality monitoring method that the above embodiment of the present invention provides, is not limited to statistics The BLER of PDCCH, after receiving radio frame signal by down wireless link, can be according to Preset the acquisition cycle, obtain the SNR of pilot signal, concrete root in this radio frame signal received Combine the BLER of PDCCH according to the SNR obtained, judge that described down wireless link synchronizes Or step-out.Such that make UE not be scheduled, cannot successfully detect and belong to this UE's PDCCH, it is also possible to determine quality of down wireless link by the SNR of pilot signal, thus Improve the reliability that down wireless link synchronizes or step-out judges；It addition, even from specific The BLER threshold value of PDCCH that sets of configuration cannot be common to the reality of current communication networks Border configures, the SNR of reference pilot signal, improves down wireless link and synchronizes or step-out judgement Reliability and accuracy.Thus, the embodiment of the present invention can dynamically obtain radio link quality, Consider the change of the change of wireless environment and the link circuit self-adapting impact on radio link quality, combine Close the SNR of pilot signal in radio frame signal and combine the BLER of PDCCH to determine descending nothing Wired link quality, it is to avoid only rely on the BLER of PDCCH to adjudicate radio link quality can The erroneous judgement that can occur and the relatively low problem of decision reliability, improve radio link quality monitoring Accuracy and reliability.It addition, by arranging synchronous regime, the enumerator of desynchronizing state judges Down wireless link synchronizes or step-out, further increases the accuracy of radio link quality monitoring With reliability.

Fig. 4 is the flow chart of radio link quality another embodiment of monitoring method of the present invention.Such as figure Shown in 4, this embodiment radio link quality monitoring method includes:

301, receive radio frame signal by down wireless link, and according to the default acquisition cycle, Obtain the BLER of Traffic Channel.

303, compare the BLER of the Traffic Channel got and the BLER door of pre-set business channel The relation of limit value.In a concrete example of the embodiment of the present invention, pre-set business channel BLER threshold value is specially 1, is avoided under misinterpretation by higher step-out determining condition as far as possible Row radio link failure, thus reduce the interruption of communication service.It addition, pre-set business channel BLER threshold value can also is that other numerical value in [0,1].

Specifically, the BLER threshold value of pre-set business channel can correspond respectively to same wireless chain The BLER threshold value of PDCCH under the quality requirements of road.Exemplarily, can be with setting wireless chain When road synchronizes to judge with step-out, the BLER threshold value of the pre-set business channel of employing is identical.Wherein, The BLER threshold value of pre-set business channel, the BLER threshold value of default step-out PDCCH are Step-out threshold value, when quality of down wireless link is not up to step-out threshold value, UE can not connect reliably Accept row wireless link signals.The BLER threshold value of pre-set business channel, pre-determined synchronization The BLER threshold value of PDCCH is synchronization threshold, when quality of down wireless link reaches to synchronize threshold During value, relative to step-out threshold value, UE can receive down wireless link signal reliably.

If the BLER of the Traffic Channel got is less than the BLER thresholding of pre-set business channel Value, it is believed that meet synchronous condition, performs the operation of 305.Otherwise, if the Traffic Channel got BLER more than or equal to the BLER threshold value of pre-set business channel, it is believed that meet step-out bar Part, performs the operation of 307.

305, respectively by the enumerator Counter of synchronous regime_inEnumerator with all states Counter_sumCumulative 1.Wherein, Counter_sumEnumerator equal to desynchronizing state Counter_out、Counter_in, and the enumerator Counter of intermediateness_medSum, middle State between desynchronizing state and synchronous regime, belong to both be unsatisfactory for synchronous condition also be unsatisfactory for lose State during step condition, Counter_outInitial value within each desynchronizing state assessment cycle is Zero.

Afterwards, the operation of 309 is performed.

307, respectively by Counter_outWith Counter_sumCumulative 1.

309, according to Counter_out、Counter_inBLER with PDCCH, it is determined that descending Wireless link synchronization or step-out.

The radio link quality monitoring method that the above embodiment of the present invention provides, is not limited to statistics The BLER of PDCCH, after receiving radio frame signal by down wireless link, can be according to Preset the acquisition cycle, obtain the BLER of this Traffic Channel received, with specific reference to Traffic Channel BLER, and combine the BLER of PDCCH, judge described down wireless link synchronize or Person's step-out.Such that make the BLER threshold value of the PDCCH set according to specific configuration The actual disposition of current communication networks cannot be common to, with reference to the BLER of Traffic Channel, improve Down wireless link synchronize or step-out judge reliability and accuracy.Thus, the present invention implements Example avoids the BLER only relying on PDCCH to adjudicate the mistake that radio link quality is likely to occur Sentence and problem that decision reliability is relatively low, improve the accuracy of radio link quality monitoring with can By property.It addition, by arranging synchronous regime, the enumerator of desynchronizing state judge descending radio chains Road synchronizes or step-out, further increases accuracy and the reliability of radio link quality monitoring.

Fig. 5 is the flow chart of radio link quality monitoring method further embodiment of the present invention.Such as figure Shown in 5, this embodiment radio link quality monitoring method includes:

401, receive radio frame signal by down wireless link, and according to the default acquisition cycle, Obtain the SNR of pilot signal and the BLER of Traffic Channel in this radio frame signal received.

403, compare the SNR and pre-determined synchronization SNR threshold value SNR got_in, preset step-out SNR threshold value SNR_outRelation, and the BLER of the Traffic Channel got and default industry The relation of the BLER threshold value of business channel.In a concrete example of the embodiment of the present invention, in advance If the BLER threshold value of Traffic Channel is specially 1, come as far as possible by higher step-out determining condition Avoid misinterpretation down wireless link step-out, thus reduce the interruption of communication service.It addition, preset The BLER threshold value of Traffic Channel can also is that other numerical value in [0,1].

Specifically, SNR_in、SNR_outCan correspond respectively under same wireless link quality conditions The BLER threshold value of PDCCH.Such as, if it is determined that the pre-determined synchronization of wireless link synchronization The BLER threshold value of PDCCH is 2%, then SNR_inIt can be the BLER value of PDCCH It is SNR value corresponding to radio link quality when 2%；If it is determined that presetting of radio link failure is same The BLER threshold value of step PDCCH is 10%, then SNR_outCan be PDCCH BLER value is the SNR value that radio link quality when 10% is corresponding.Equally, pre-set business letter The BLER threshold value in road can also correspond respectively to PDCCH under same wireless link quality conditions BLER threshold value.Exemplarily, use when can judge with step-out with setting wireless link synchronization The BLER threshold value of pre-set business channel identical.Wherein, SNR_out, pre-set business channel BLER threshold value, preset step-out PDCCH BLER threshold value be step-out threshold value, when When quality of down wireless link is not up to step-out threshold value, UE can not receive descending radio chains reliably Road signal.SNR_in, the BLER threshold value of pre-set business channel, pre-determined synchronization PDCCH BLER threshold value is synchronization threshold, when quality of down wireless link reaches synchronization threshold, relatively In step-out threshold value, UE can receive down wireless link signal reliably.

If the SNR got is more than or equal to SNR_inOr the Traffic Channel got BLER is less than the BLER threshold value of pre-set business channel, it is believed that meet synchronous condition, performs The operation of 405.If the SNR got is less than SNR_outAnd the Traffic Channel got BLER is more than or equal to the BLER threshold value of pre-set business channel, it is believed that meet step-out condition, Perform the operation of 407.Otherwise, if the SNR got is more than or equal to SNR_outAnd be less than SNR_in, perform the operation of 409.

405, respectively by the enumerator Counter of synchronous regime_inEnumerator with all states Counter_sumCumulative 1.Wherein, Counter_sumEnumerator equal to desynchronizing state Counter_out、Counter_in, and the enumerator Counter of intermediateness_medSum, middle State between desynchronizing state and synchronous regime, belong to both be unsatisfactory for synchronous condition also be unsatisfactory for lose State during step condition, Counter_outInitial value within each desynchronizing state assessment cycle is Zero.

Afterwards, the operation of 411 is performed.

407, respectively by Counter_outWith Counter_sumCumulative 1.

Afterwards, the operation of 411 is performed.

409, respectively by Counter_medWith Counter_sumCumulative 1.

Afterwards, the operation of 411 is performed.

411, according to Counter_out、Counter_inBLER with PDCCH, it is determined that descending Wireless link synchronization or step-out.

The radio link quality monitoring method that the above embodiment of the present invention provides, can preset with identical SNR that under the conditions of radio link quality, the BLER threshold value of PDCCH is corresponding and Traffic Channel BLER threshold value, after receiving radio frame signal by down wireless link, can be according in advance If the cycle of acquisition, obtain the SNR of pilot signal in this radio frame signal received and believe with business The BLER in road, with specific reference to the SNR, the BLER of Traffic Channel that obtain, and arranges synchronization shape State, the enumerator of desynchronizing state, in conjunction with the BLER of PDCCH, relative to prior art only It is limited only to add up the BLER of PDCCH, judges that described down wireless link synchronizes or loses Step, improves accuracy and the reliability of radio link quality monitoring, it is to avoid only rely on The BLER of PDCCH adjudicates erroneous judgement and the decision reliability that radio link quality is likely to occur Relatively low problem；Further, comprehensive SNR, Traffic Channel determine with the BLER of PDCCH Quality of down wireless link, can dynamically obtain radio link quality, it is contemplated that the change of wireless environment Changing and the change impact on radio link quality of link circuit self-adapting, further effective guarantee is wireless The accuracy of link-quality monitoring and reliability.

Fig. 6 is the flow chart of radio link quality monitoring method a still further embodiment of the present invention.Such as figure Shown in 6, in this embodiment, specifically can realize the behaviour of 211,309 or 411 in the following way Make, it is determined that down wireless link synchronizes or step-out:

501, identify Counter_sumWhether reach the radio frames that pre-determined synchronization sliding window is corresponding. In response to Counter_sumReach to preset the radio frames that step-out sliding window is corresponding, perform the behaviour of 503 Make.Otherwise, the follow-up flow process of the present embodiment is not performed.

503, the BLER of PDCCH in acquisition pre-determined synchronization sliding window, this PDCCH's BLER includes the BLER of PCFICH.

An example according to the present invention and unrestricted, specifically can obtain default in the following way The BLER of PDCCH in sliding window: obtain in presetting sliding window and detect wrong PDCCH's Business data transmission block number C, total by detecting in C and default sliding window in wrong PDCCH The ratio C/D of business data transmission block number D obtain and preset PDCCH in sliding window BLER。

505, identify Counter_inWhether reach pre-determined synchronization count threshold, and pre-determined synchronization In sliding window, whether the BLER of PDCCH is more than the BLER thresholding of pre-determined synchronization PDCCH Value.In a concrete example of the embodiment of the present invention, the BLER of pre-determined synchronization PDCCH Threshold value is specially 2%, it is also possible to be other numerical value in 0～100%；Pre-determined synchronization counting door Limit value is specially 1, to realize the synchronization decisions success rate of higher wireless link, it addition, preset Synchronous counting threshold value can also take other integer value more than 0.Owing to PCFICH carries one For OFDM (the Orthogonal Frequency of PDCCH transmission in individual subframe Division Multiplexing, hereinafter referred to as: the OFDM) information of symbol numbers, the present invention In each embodiment, the BLER of PDCCH includes the BLER of PCFICH.

If Counterin reaches in pre-determined synchronization count threshold, or pre-determined synchronization sliding window The BLER of PDCCH is not more than the BLER threshold value of pre-determined synchronization PDCCH, performs 507 Operation.Otherwise, Counter_inNot up to pre-determined synchronization count threshold, and pre-determined synchronization is sliding In dynamic window, the BLER of the PDCCH BLER threshold value more than pre-determined synchronization PDCCH, holds The operation of row 509.

507, it is determined that down wireless link synchronizes.

Afterwards, the follow-up flow process of the present embodiment is not performed.Can be exemplarily to higher layer entities list Unit sends wireless link synchronization instruction.

509, identify Counter_sumWhether reach to preset the radio frames that step-out sliding window is corresponding. In response to Counter_sumReach to preset the radio frames that step-out sliding window is corresponding, perform the behaviour of 311 Make.Otherwise, the follow-up flow process of the present embodiment is not performed.

511, identify Counter_outWhether reach to preset step-out count threshold, and preset mistake In step sliding window, whether the BLER of PDCCH is more than the BLER door presetting step-out PDCCH Limit value.In a concrete example of the embodiment of the present invention, preset the BLER of step-out PDCCH Threshold value is specially Counter_sum* 80%, it is also possible to be Counter_sumIts in numerical range Its numerical value；The BLER threshold value presetting step-out PDCCH is specially 10%, it is also possible to be Other numerical value in 0～100%.

If Counter_outReach to preset in step-out count threshold, and default step-out sliding window The BLER of PDCCH, more than the BLER threshold value of default step-out PDCCH, performs 513 Operation.Otherwise, the follow-up flow process of the present embodiment is not performed.

513, it is determined that down wireless link step-out.

Afterwards, exemplarily radio link failure instruction can be sent to higher layer entities unit.

The radio link quality monitoring method that the above embodiment of the present invention provides, can preset with identical SNR that under the conditions of radio link quality, the BLER threshold value of PDCCH is corresponding and Traffic Channel BLER threshold value, after receiving radio frame signal by down wireless link, can be according in advance If the cycle of acquisition, obtain the SNR of pilot signal in this radio frame signal received and believe with business The BLER in road, with specific reference to the SNR, the BLER of Traffic Channel that obtain, and combines default sliding The BLER of the PDCCH of statistics in dynamic window, judges that described down wireless link synchronizes or loses Step.Such that it is able to dynamically obtain radio link quality, it is contemplated that the change of wireless environment and link are certainly The change the adapted to impact on radio link quality, comprehensive SNR, Traffic Channel and PDCCH BLER determine quality of down wireless link, it is to avoid only rely on the BLER of PDCCH Adjudicate erroneous judgement that radio link quality is likely to occur and the relatively low problem of decision reliability, improve The accuracy of radio link quality monitoring and reliability.

In order to reduce UE power consumption, preserve wireless transmitter receiver unit (Wireless Battery electric quantity transmission/receive unit, hereinafter referred to as: WTRU), extends battery The use time, reduce intrasystem interference, improve frequency efficiency, increase power system capacity, WTRU compatible for LTE and base station (also referred to as: enode b or eNodeB, letter below Claim: introduce in eNB) discontinuous reception (Discontinuous reception, hereinafter referred to as: DRX) connection status.During not enabled DRX connection status, WTRU is in non-DRX mould Under formula.When enabling DRX connection status, WTRU is under DRX mode.

The radio link quality monitoring method of the various embodiments described above of the present invention can be for one WTRU performs.WTRU can configure according to the mode of operation in the broadcast that eNB sends Information enables DRX connection status, and introduces DRX connection status between eNB, and will WTRU be configured to semi-persistent scheduling (Semi-Persistent Scheduling, hereinafter referred to as: SPS) state.

In the radio link quality monitoring method of the various embodiments described above, it is also possible to identify WTRU Present mode whether be DRX mode.If present mode is non-DRX mode, the most above-mentioned pre- If the acquisition cycle can be specifically a radio frames, it may be assumed that obtain the nothing received in each radio frames The SNR of pilot signal and the BLER of Traffic Channel in line frame signal.For convenience, this The BLER of Traffic Channel under non-DRX mode is expressed as BLER by bright embodiment_{Traffic Channel}；In advance If synchronous slide window can be specifically M wireless frame length, presetting step-out sliding window can be specifically N number of wireless frame length, it may be assumed that when judging whether to meet synchronous condition, with M radio frames a length of week Phase obtains the BLER of PDCCH, it may be judged whether when meeting step-out condition, with N number of wireless frame length The BLER of PDCCH is obtained for the cycle.For convenience, by non-in the embodiment of the present invention Under DRX mode, the BLER of PDCCH is expressed as BLER_PDCCH.Wherein, M, N are big In the integer of 1, and M < N.Such as, when the value of M is 10, pre-determined synchronization sliding window is 10 wireless frame length 100ms；When the value of N is 20, preset step-out sliding window be 20 wireless Frame length 200ms, now, in operation 503, adds up in the sliding window of 100ms BLER_PDCCH；In operation 511, in the sliding window of 200ms, add up BLER_PDCCH。

When WTRU is under DRX mode, WTRU is with DRX circulation for cycle work Make, the duration that each DRX circulation including opening (also referred to as wake up measurement time cycle) with During dormancy.WTRU carries out transmission and the reception of data opening duration, and in dormancy Period does not carry out transmission and the reception of data.If present mode is DRX mode, presets and obtain week (also referred to as wake up the measurement time cycle) duration that phase being the unlatching of WTRU, it may be assumed that each SNR and the Traffic Channel of pilot signal in the radio frame signal received is obtained the duration of unlatching BLER.For convenience, by Traffic Channel under DRX mode in the embodiment of the present invention BLER is expressed as BLER_{PDSCH_DRX}；Pre-determined synchronization sliding window is specially pre-determined synchronization assessment week Phase T_Evaluate_Q_{in_DRX}, preset step-out sliding window and be specially default step-out assessment cycle T_Evaluate_Q_{out_DRX}.Wherein, T_Evaluate_Q_{in_DRX}<T_Evaluate_Q_{out_DRX}.That is: judgement is No when meeting synchronous condition, with pre-determined synchronization assessment cycle T_Evaluate_Q_{in_DRX}Obtain for the cycle The BLER of PDCCH, it may be judged whether when meeting step-out condition, with default step-out assessment cycle T_Evaluate_Q_{out_DRX}The BLER of PDCCH is obtained for the cycle.For convenience, the present invention is real Execute in example and the BLER of PDCCH under DRX mode is expressed as BLER_{PDCCH_DRX}。

Under non-DRX mode, when WTRU is configured to semi-persistent scheduling (Semi-Persistent Scheduling, hereinafter referred to as: SPS) during pattern, PDCCH is periodic scheduling, according to The regulation of 3GPP agreement TS36.331, configure in WTRU SPS dispatching cycle example such as Under:

Wherein, sf10, sf20, sf32, sf40, sf64, sf80, sf128, sf160, sf320, sf640 are respectively The dispatching cycle of SPS representing configuration is 10ms, 20ms, 32ms, 40ms, 64ms, 80ms, 128ms, 160ms, 320ms and 640ms.It follows that the dispatching cycle of SPS has Will be likely longer than pre-determined synchronization sliding window, preset step-out sliding window.The dispatching cycle of SPS is longer than default Synchronous slide window, when presetting step-out sliding window, just cannot be at corresponding pre-determined synchronization sliding window, pre- If statistics BLER in step-out sliding window_PDCCH。

Fig. 7 is the flow chart of radio link quality another embodiment of monitoring method of the present invention. When the present mode of WTRU is non-DRX mode, as it is shown in fig. 7, compared with above-described embodiment, This embodiment also includes below scheme:

601, identify whether WTRU is configured to SPS pattern.

If WTRU is configured to SPS pattern, perform the operation of 603.Otherwise, if WTRU It is not configured as SPS pattern, performs according to Counter_out、Counter_inWith PDCCH's BLER, it is determined that down wireless link synchronizes or the operation of step-out, specifically can pass through Fig. 6 institute Show that the operation of 501～511 realizes.

603, identify Counter_sumWhether reach the radio frames that pre-determined synchronization sliding window is corresponding. If Counter_sumReach the radio frames that pre-determined synchronization sliding window is corresponding, perform the operation of 605. Otherwise, the follow-up flow process of the present embodiment is not performed.

605, identify whether SPS is more than pre-determined synchronization sliding window dispatching cycle.If SPS dispatches week Phase is more than pre-determined synchronization sliding window, performs the operation of 607.Otherwise, if SPS is less than dispatching cycle Or equal to pre-determined synchronization sliding window, judge that down wireless link synchronizes by the operation of 505 ~ 313 Or step-out.

Owing to pre-determined synchronization sliding window is less than the length of default step-out sliding window, therefore, SPS dispatches When cycle is less than or equal to pre-determined synchronization sliding window, SPS slides less than presetting step-out dispatching cycle Window.

607, identify Counter_inWhether reach pre-determined synchronization count threshold.If Counter_in Reach pre-determined synchronization count threshold, perform the operation of 507, it is determined that down wireless link synchronizes. Afterwards, the follow-up flow process of the present embodiment is not performed.Can exemplarily send out to higher layer entities unit Wireless link synchronization is sent to indicate.

Otherwise, if Counter_inNot up to pre-determined synchronization count threshold, performs the behaviour of 609 Make.

609, identify Counter_sumWhether reach to preset the radio frames that step-out sliding window is corresponding. If Counter_sumReach to preset the radio frames that step-out sliding window is corresponding, perform the operation of 611. Otherwise, the follow-up flow process of the present embodiment is not performed.

611, identify whether SPS is more than default step-out sliding window dispatching cycle.If SPS dispatches week Phase, more than presetting step-out sliding window, performs the operation of 613.Otherwise, if SPS is less than dispatching cycle Or equal to presetting step-out sliding window, perform the operation of 511～513.

613, identify Counter_outWhether reach to preset step-out count threshold.If Counter_out Reach to preset step-out count threshold, perform the operation of 513, it is determined that down wireless link step-out. Afterwards, exemplarily radio link failure instruction can be sent to higher layer entities unit.

Otherwise, if Counter_outNot up to preset step-out count threshold, do not perform the present embodiment Follow-up flow process.

In the embodiment shown in above-mentioned Fig. 7, under non-DRX mode, first identify WTRU Whether it is configured to SPS pattern.When WTRU is configured to SPS pattern, identify SPS Dispatching cycle whether more than pre-determined synchronization sliding window, preset step-out sliding window, if SPS dispatching cycle It is not more than pre-determined synchronization sliding window, presets step-out sliding window, the embodiment of the present invention obtains corresponding sliding BLER in dynamic window_PDCCH, comprehensive SNR, BLER_PDSCHWith BLER_PDCCHJudge nothing Wired link synchronizes or step-out.Sliding more than pre-determined synchronization sliding window or default step-out for dispatching cycle at SPS During dynamic window, it is impossible to the BLER of monitoring PDCCH, the embodiment of the present invention does not add up corresponding sliding window Interior BLER_PDCCH, in conjunction with SNR and BLER_PDSCHJudge wireless link synchronization or mistake Step, it is achieved thereby that be more than pre-determined synchronization sliding window or default step-out sliding window dispatching cycle to SPS Time radio link quality monitoring.

Owing to embodiment illustrated in fig. 5 illustrates the BLER of comprehensive SNR, Traffic Channel and PDCCH Three parameters determine the implementation of quality of down wireless link, in accompanying drawing 6, accompanying drawing 7, The example comprising in embodiment illustrated in fig. 5, Fig. 6, embodiment illustrated in fig. 7 are only symbolically shown Respectively in connection with Fig. 3, the accompanying drawing of embodiment illustrated in fig. 4, those skilled in the art can be based on this The content that bright above-described embodiment is recorded obtains, and repeats no more.

In the radio link quality monitoring method of the various embodiments described above of the present invention, non-DRX mode Under, physical layer element sends two adjacent wireless link synchronization to higher level unit and/or step-out refers to The interval shown can be at least up to 10ms.Higher level unit receives physical layer element and continuously transmits Step-out instruction when reaching predetermined number, an intervalometer can be started, it may be assumed that 3GPP specification The T310 intervalometer of the entitled T310 of the 5.3.11 joint regulation of TS36.331, carries out timing. T310 timer expiry, then judge Radio Link Failure (Radio link failure, below letter Claim: RLF), also referred to as: radio link failure.If WTRU is arranged in UE, in UE WTRU judge radio link failure after, in order to reduce the interference to other UE and preserve electricity Pond electricity, after T310 timer expiry, UE can close transmitter in 40ms, stops Ascending power is launched.

As shown in table 2 below, for presetting step-out assessment cycle T under DRX mode_{Evaluate_Qout_DRX} With pre-determined synchronization assessment cycle T_{Evaluate_Qin_DRX}A parameter information example.Wherein, Note (20), the number of 20,10,5 expressions DRX circulation (cycle) in Note (10) and Note (5) Amount.In the drx mode, physical layer element sends two adjacent wireless links to higher level unit Synchronize and/or step-out instruction interval at least can reach in 10ms and DRX length of the cycle Higher value.Higher level unit receives the step-out instruction that physical layer element continuously transmits and reaches present count During amount, T310 intervalometer can be started and carry out timing.And after T310 intervalometer starts, press According to pre-determined synchronization sliding window during non-DRX mode, preset step-out sliding window, two adjacent sync And/or the interval of step-out instruction monitors the recovery situation of wireless link, until T310 intervalometer surpasses Time, it is determined that radio link failure.After UE judges radio link failure, in order to reduce other The interference of UE also conserves battery charge, and after T310 timer expiry, UE should be in 40ms Close transmitter, stop ascending power and launch.

T under table 2DRX pattern_Evaluate_Q_{out_DRX}And T_Evaluate_Q_{in_DRX}Parameter information

Fig. 8 is the structural representation of one embodiment of radio link quality monitoring device of the present invention.Should The radio link quality monitoring device of embodiment can be used for realizing the above-mentioned each radio link quality of the present invention The flow process of monitoring method embodiment.As shown in Figure 8, it includes receiving unit 701, acquiring unit 703 with decision unit 705.

Wherein, receive unit 701, for receiving radio frame signal by down wireless link.

Acquiring unit 703, for according to the default acquisition cycle, obtains reception unit 701 and receives Radio frame signal in the SNR and/or the BLER of Traffic Channel of pilot signal；Exemplarily, Traffic Channel in various embodiments of the present invention includes but not limited to PDSCH.

Decision unit 705, for the SNR obtained according to acquiring unit 703 and/or Traffic Channel BLER, and combine the BLER of PDCCH, it is determined that down wireless link synchronizes or loses Step.

The radio link quality monitoring device provided based on the above embodiment of the present invention, is not limited to system The BLER of meter PDCCH, after receiving radio frame signal by down wireless link, can be by According to the default acquisition cycle, obtain pilot signal in this radio frame signal received SNR and/or The BLER of Traffic Channel, with specific reference to the SNR obtained and/or the BLER of Traffic Channel, and In conjunction with the BLER of PDCCH, judge that described down wireless link synchronizes or step-out.

Fig. 9 is the structural representation of radio link quality another embodiment of monitoring device of the present invention. The radio link quality monitoring device of this embodiment can be used for realizing wireless link shown in Fig. 2 of the present invention The flow process of quality monitoring method embodiment.As it is shown in figure 9, compared with the embodiment shown in Fig. 8, In the radio link quality monitoring device of this embodiment, decision unit 705 specifically includes the sub-list of comparison Unit 801, count sub-element 803 and judgement subelement 805.

Wherein in a specific embodiment, compare subelement 801, be used for comparing acquiring unit 703 SNR and SNR got_in、SNR_outRelation.

Count sub-element 803, is used for according to the comparative result comparing subelement 801, if getting SNR more than or equal to SNR_in, respectively by the enumerator Counter of synchronous regime_inWith all The enumerator Counter of state_sumCumulative 1, wherein, Counter_sumMeter equal to desynchronizing state Number device Counter_out、Counter_in, and the enumerator Counter of intermediateness_medSum, Intermediateness between desynchronizing state and synchronous regime, Counter_outComment at each desynchronizing state Estimating the initial value in the cycle is zero；If the SNR got is more than or equal to SNR_out, respectively will Counter_outWith Counter_sumCumulative 1；Otherwise, if the SNR got is more than or equal to SNR_outAnd less than SNR_in, respectively by Counter_medWith Counter_sumCumulative 1.

Judgement subelement 805, for count to get according to count sub-element 803 Counter_out、Counter_inBLER with PDCCH, it is determined that down wireless link synchronize or Person's step-out.

The radio link quality monitoring device that above-described embodiment provides, is not limited to add up PDCCH BLER, after receiving radio frame signal by down wireless link, can be according to default acquisition In the cycle, obtain the SNR of pilot signal in this radio frame signal received, with specific reference to obtain SNR combines the BLER of PDCCH, judges that described down wireless link synchronizes or step-out. Such that make UE not be scheduled, cannot successfully detect the PDCCH belonging to this UE, also Quality of down wireless link can be determined by the SNR of pilot signal, thus improve descending The reliability that wireless link synchronization or step-out judge；It addition, even from specifically configuring setting The BLER threshold value of PDCCH cannot be common to the actual disposition of current communication networks, ginseng Examine the SNR of pilot signal, improve down wireless link synchronize or step-out judge reliability with Accuracy.Thus, the embodiment of the present invention can dynamically obtain radio link quality, it is contemplated that wireless The change of environment and the change of the link circuit self-adapting impact on radio link quality, comprehensive wireless frame is believed In number, the SNR of pilot signal combines the BLER of PDCCH to determine down wireless link matter Amount, it is to avoid only rely on the BLER of PDCCH to adjudicate what radio link quality was likely to occur Erroneous judgement and the relatively low problem of decision reliability, improve the accuracy of radio link quality monitoring with Reliability.It addition, by arranging synchronous regime, the enumerator of desynchronizing state judge descending wireless Link synchronization or step-out, further increase the accuracy of radio link quality monitoring with reliable Property.

Wherein in another specific embodiment, compare subelement 801, be used for comparing acquiring unit The BLER of 703 Traffic Channels got and the pass of the BLER threshold value of pre-set business channel System.

Count sub-element 803, is used for according to the comparative result comparing subelement 801, if getting The BLER of Traffic Channel less than the BLER threshold value of pre-set business channel, will synchronize respectively The enumerator Counter of state_inEnumerator Counter with all states_sumCumulative 1, its In, Counter_sumEnumerator Counter equal to desynchronizing state_out、Counter_in, Yi Jizhong Between the enumerator Counter of state_medSum, intermediateness between desynchronizing state and synchronous regime it Between, Counter_outInitial value within each desynchronizing state assessment cycle is zero；If getting The BLER of Traffic Channel, more than or equal to the BLER threshold value of pre-set business channel, respectively will Counter_outWith Counter_sumCumulative 1.

The radio link quality monitoring device that the above embodiment of the present invention provides, is not limited to statistics The BLER of PDCCH, after receiving radio frame signal by down wireless link, can be according to Preset the acquisition cycle, obtain the BLER of this Traffic Channel received, with specific reference to Traffic Channel BLER, and combine the BLER of PDCCH, judge described down wireless link synchronize or Person's step-out.Such that make the BLER threshold value of the PDCCH set according to specific configuration The actual disposition of current communication networks cannot be common to, with reference to the BLER of Traffic Channel, improve Down wireless link synchronize or step-out judge reliability and accuracy.Thus, the present invention implements Example avoids the BLER only relying on PDCCH to adjudicate the mistake that radio link quality is likely to occur Sentence and problem that decision reliability is relatively low, improve the accuracy of radio link quality monitoring with can By property.It addition, by arranging synchronous regime, the enumerator of desynchronizing state judge descending radio chains Road synchronizes or step-out, further increases accuracy and the reliability of radio link quality monitoring.

Wherein in another specific embodiment, compare subelement 801, be used for comparing acquiring unit 703 SNR and SNR got_in、SNR_outRelation, and acquiring unit 703 gets The relation of BLER threshold value of BLER and pre-set business channel of Traffic Channel.

Count sub-element 803, is used for according to the comparative result comparing subelement 801, if getting SNR more than or equal to SNR_inOr the BLER of the Traffic Channel got is less than presetting industry The BLER threshold value of business channel, respectively by the enumerator Counter of synchronous regime_inWith all shapes The enumerator Counter of state_sumCumulative 1, wherein, Counter_sumCounting equal to desynchronizing state Device Counter_out、Counter_in, and the enumerator Counter of intermediateness_medSum, in Between state between desynchronizing state and synchronous regime, Counter_outAssess at each desynchronizing state Initial value in cycle is zero；If the SNR got is more than or equal to SNR_outAnd get The BLER of Traffic Channel, more than or equal to the BLER threshold value of pre-set business channel, respectively will Counter_outWith Counter_sumCumulative 1；Otherwise, if the SNR got is more than or equal to SNR_outAnd less than SNR_in, respectively by Counter_medWith Counter_sumCumulative 1.

The radio link quality monitoring device that above-described embodiment provides, can preset and same wireless chain The SNR that under the quality requirements of road, the BLER threshold value of PDCCH is corresponding and Traffic Channel BLER threshold value, after receiving radio frame signal by down wireless link, can be according to presetting In the acquisition cycle, obtain SNR and the Traffic Channel of pilot signal in this radio frame signal received BLER, with specific reference to the SNR, the BLER of Traffic Channel that obtain, and synchronization shape is set State, the enumerator of desynchronizing state, in conjunction with the BLER of PDCCH, relative to prior art only It is limited only to add up the BLER of PDCCH, judges that described down wireless link synchronizes or loses Step, improves accuracy and the reliability of radio link quality monitoring, it is to avoid only rely on The BLER of PDCCH adjudicates erroneous judgement and the decision reliability that radio link quality is likely to occur Relatively low problem；Further, comprehensive SNR, Traffic Channel determine with the BLER of PDCCH Quality of down wireless link, can dynamically obtain radio link quality, it is contemplated that the change of wireless environment Changing and the change impact on radio link quality of link circuit self-adapting, further effective guarantee is wireless The accuracy of link-quality monitoring and reliability.

An example according to radio link quality monitoring device embodiment of the present invention and unrestricted, with Radio link quality monitoring method embodiment shown in Fig. 6 of the present invention is corresponding, at shown in Fig. 9 three In the radio link quality monitoring device of specific embodiment, judgement subelement 805 specifically may indicate that Relatively subelement 801 identifies the Counter that count sub-element 803 counts to get_sumWhether reach pre- If the radio frames that synchronous slide window is corresponding；According to comparing the recognition result of subelement 801, response In Counter_sumReach to preset the radio frames that step-out sliding window is corresponding, indicate acquiring unit 703 The BLER of PDCCH in acquisition pre-determined synchronization sliding window；And instruction compares subelement 801 and knows The Counter that other count sub-element 803 counts to get_inWhether reach pre-determined synchronization count threshold Value, and in pre-determined synchronization sliding window, whether the BLER of PDCCH is more than pre-determined synchronization The BLER threshold value of PDCCH；And according to comparing the recognition result of subelement 801, if Counter_inReach PDCCH in pre-determined synchronization count threshold, or pre-determined synchronization sliding window BLER be not more than the BLER threshold value of pre-determined synchronization PDCCH, it is determined that descending radio chains Road synchronizes；

Otherwise, Counter_inNot up to pre-determined synchronization count threshold, and pre-determined synchronization sliding window The BLER of the interior PDCCH BLER threshold value more than pre-determined synchronization PDCCH, judgement Unit 805 specifically may indicate that comparing subelement 801 identifies Counter_sumWhether reach to preset mistake The radio frames that step sliding window is corresponding；And according to comparing the recognition result of subelement 801, response In Counter_sumReaching to preset the radio frames that step-out sliding window is corresponding, subelement is compared in instruction 801 identify Counter_outWhether reach to preset step-out count threshold, and default step-out is slided In window, whether the BLER of PDCCH is more than the BLER threshold value presetting step-out PDCCH； And according to comparing the recognition result of subelement 801, if Counter_outReach to preset step-out counting In threshold value, and default step-out sliding window, the BLER of PDCCH is more than presetting step-out The BLER threshold value of PDCCH, it is determined that down wireless link step-out.

Referring back to Fig. 9, according to another of the embodiment of radio link quality monitoring device of the present invention Example and unrestricted, radio link quality monitoring method embodiment above-mentioned with the present invention is corresponding, also Including the first recognition unit 707, for identify this radio link quality monitoring device for Whether the present mode of WTRU is DRX mode.

Exemplarily, if the present mode of WTRU is DRX mode, acquiring unit 703 Preset the acquisition cycle duration be specifically as follows the unlatching of WTRU, acquiring unit 703 pre- If synchronous slide window is specifically as follows pre-determined synchronization assessment cycle T_Evaluate_Q_{in_DRX}, acquiring unit The default step-out sliding window of 703 is specifically as follows default step-out assessment cycle T_Evaluate_Q_{out_DRX}。 Wherein, T_Evaluate_Q_{in_DRX}<T_Evaluate_Q_{out_DRX}。

Exemplarily, if the present mode of WTRU is non-DRX mode, acquiring unit 703 The default acquisition cycle be specifically as follows a radio frames, the pre-determined synchronization of acquiring unit 703 slides Window is specifically as follows M wireless frame length, and the default step-out sliding window of acquiring unit 703 specifically may be used Think N number of wireless frame length.Wherein, M, N are the integer more than 1, and M < N.

Further, according to another example of radio link quality monitoring device embodiment of the present invention And it is unrestricted, if the present mode of WTRU is non-DRX mode, shown in Fig. 7 of the present invention Radio link quality monitoring method embodiment is corresponding, the radio link quality prison of the various embodiments described above Survey device and can also include the second recognition unit 709, for the knowledge according to the first recognition unit 707 Other result, if present mode is non-DRX mode, identifies this radio link quality monitoring device pin To WTRU whether be configured to SPS pattern.Correspondingly, decision unit 705 is the most permissible According to the recognition result of the second recognition unit 709, if WTRU is not configured as SPS pattern, Perform according to Counter_out、Counter_inBLER with PDCCH, it is determined that descending radio chains Road synchronizes or the operation of step-out.

If WTRU is configured to SPS pattern, decision unit 705 specifically can be single by judgement Unit 805 instruction is compared subelement 801 and is identified Counter_sumWhether reach pre-determined synchronization sliding window pair The radio frames answered；According to comparing the recognition result of subelement 801, in response to Counter_sumReach To the radio frames that pre-determined synchronization sliding window is corresponding, instruction is compared subelement 801 and is identified that SPS dispatches Whether the cycle is more than pre-determined synchronization sliding window；

According to comparing the recognition result of subelement 801, if SPS is sliding more than pre-determined synchronization for dispatching cycle Dynamic window, instruction is compared subelement 801 and is identified Counter_inWhether reach pre-determined synchronization count threshold Value.And according to comparing the recognition result of subelement 801, if Counter_inReach pre-determined synchronization Count threshold, it is determined that down wireless link synchronizes；

Otherwise, Counter_inNot up to pre-determined synchronization count threshold, specifically can be single by judgement Unit 805 instruction is compared subelement 801 and is identified Counter_sumWhether reach to preset step-out sliding window pair The radio frames answered.And according to comparing the recognition result of subelement 801, in response to Counter_sumReaching to preset the radio frames that step-out sliding window is corresponding, subelement 801 is compared in instruction Identify whether SPS is more than default step-out sliding window dispatching cycle.According to the knowledge comparing subelement 801 Other result, if SPS is more than presetting step-out sliding window dispatching cycle, instruction is compared subelement 801 and is known Other Counter_outWhether reach to preset step-out count threshold, and according to comparing subelement 801 Recognition result, if Counter_outReach to preset step-out count threshold, it is determined that down wireless link Step-out；

Otherwise, if SPS is less than or equal to presetting step-out sliding window dispatching cycle, more sub-list is indicated Unit 801 identifies Counter_outWhether reach to preset step-out count threshold, and default step-out is sliding In dynamic window, whether the BLER of PDCCH is more than the BLER thresholding presetting step-out PDCCH Value；According to comparing the recognition result of subelement 801, if Counter_outReach to preset step-out counting In threshold value, and default step-out sliding window, the BLER of PDCCH is more than presetting step-out The BLER threshold value of PDCCH, it is determined that described down wireless link step-out；

Otherwise, if SPS is less than or equal to pre-determined synchronization sliding window dispatching cycle, start to perform instruction Acquiring unit 703 obtains the operation of the BLER of PDCCH in pre-determined synchronization sliding window.

Figure 10 is the structural representation of mono-embodiment of WTRU of the present invention.This embodiment WTRU can be used for realizing the stream of the above-mentioned each radio link quality monitoring method embodiment of the present invention Journey.As shown in Figure 10, it includes physical layer element 1 and higher level unit 2.

Wherein, physical layer element 1 is for receiving radio frame signal by down wireless link, and presses According to the default acquisition cycle, obtain SNR and the industry of pilot signal in the radio frame signal received The BLER of business channel；According to the SNR, the BLER of Traffic Channel that obtain, and combine The BLER of PDCCH, it is determined that down wireless link synchronizes or step-out, and to higher level unit 2 send wireless link synchronization instruction or radio link failure instruction.A tool according to the present invention Body example, physical layer element 1 specifically can use radio link quality shown in Fig. 8 or Fig. 9 to monitor The structure of device embodiment realizes.Figure 10 exemplarily only illustrating, physical layer element 1 uses Fig. 9 Shown in the instantiation of one of them example structure, for physical layer element 1 use the present invention its The embodiment that its example structure realizes, those skilled in the art can be based on the above-mentioned enforcement of the present invention The content that example is recorded realizes, and repeats no more.

Wireless link synchronization instruction that higher level unit 2 sends for receiving physical layer element 1 or Radio link failure indicates.Higher level unit 2 can send receiving reception physical layer element 1 The number of radio link failure instruction when reaching preset number, T310 intervalometer can be started and press Timing is carried out according to preset duration.T310 timer expiry, then judge RLF, it may be assumed that wireless link Step-out.In order to reduce the interference to other UE and conserve battery charge, higher level unit 2 is permissible After T310 timer expiry, in 40ms, close transmitter, stop ascending power and launch. A concrete example according to the present invention, higher level unit 2 can be specifically medium access control (Media Access Control, hereinafter referred to as: MAC) unit, wireless heterogeneous networks (Radio Resources Control, hereinafter referred to as: RRC) unit or wireless link control The entities such as system (Radio Link Control, hereinafter referred to as: RLC) unit.

The WTRU provided based on the above embodiment of the present invention, is not limited to add up PDCCH's BLER, after receiving radio frame signal by down wireless link, can obtain week according to default Phase, obtain the SNR of pilot signal in this radio frame signal received and/or Traffic Channel BLER, with specific reference to the SNR obtained and/or the BLER of Traffic Channel, and combines PDCCH BLER, judge described down wireless link synchronize or step-out.

In one embodiment of the invention, a kind of UE is additionally provided, including in the present invention State the WTRU that any embodiment provides.

The UE provided based on the above embodiment of the present invention, including the WTRU of above-described embodiment, no It is confined to add up the BLER of PDCCH, receives radio frame signal by down wireless link After, pilot signal in this radio frame signal received can be obtained according to the default acquisition cycle SNR and/or the BLER of Traffic Channel, with specific reference to the SNR obtained and/or Traffic Channel BLER, and combine the BLER of PDCCH, judge described down wireless link synchronize or Step-out.

One of ordinary skill in the art will appreciate that: the various embodiments described above radio link quality of the present invention Component units in monitoring device, WTRU with UE can be realized by software, it is also possible to passes through Hardware realizes.Further, the various embodiments described above radio link quality monitoring device of the present invention, WTRU With the Component units of UE not necessarily realize the embodiment of the present invention must or only limit.Separately Outward, the Component units of radio link quality monitoring device can also be distributed in UE according to the actual requirements In other Component units beyond middle WTRU, the position that arranges of each Component units can also basis Actual demand adjusts.In the Component units of device, a unit can be merged into multiple Component units Realize, it is also possible to a Component units is split as multiple subelement and realizes.It addition, the composition of device Annexation between unit, only represents an information flow direction exemplary relationship based on the present invention, no It is limited to physical couplings, and is also not necessarily and realizes the embodiment of the present invention and must or only limit 's.

In this specification, each embodiment all uses the mode gone forward one by one to describe, and each embodiment emphasis is said Bright is all the difference with other embodiments, same or analogous part between each embodiment Cross-reference.For device, apparatus embodiments, owing to it is basic with embodiment of the method Correspondence, so describe is fairly simple, relevant part sees the part explanation of embodiment of the method i.e. Can.

One of ordinary skill in the art will appreciate that: realize all or part of of said method embodiment Step can be completed by the hardware that programmed instruction is relevant, and aforesaid program can be stored in a meter In calculation machine read/write memory medium, this program upon execution, performs to include said method embodiment Step；And aforesaid storage medium includes: ROM, RAM, magnetic disc or CD etc. are various can To store the medium of program code.

The embodiment of the present invention is according to the SNR obtained and/or the BLER of Traffic Channel, and combines The BLER of PDCCH, judges that down wireless link synchronizes or step-out, can dynamically obtain Radio link quality, and consider the change of wireless environment and the change of link circuit self-adapting to wireless The impact of link-quality, it is to avoid only rely on the BLER of PDCCH to adjudicate wireless link matter The erroneous judgement that is likely to occur of amount and the relatively low problem of decision reliability, improve radio link quality prison The accuracy surveyed and reliability；

Arrange synchronous regime, desynchronizing state enumerator to carry out radio link quality monitoring, enter one Step improves accuracy and the reliability of radio link quality monitoring；

SPS dispatching cycle more than pre-determined synchronization sliding window or default step-out sliding window time, the present invention Embodiment does not add up the BLER of PDCCH in corresponding sliding window, believes according to SNR and/or business The BLER in road judges wireless link synchronization or step-out, it is achieved thereby that to SPS dispatching cycle More than the monitoring of radio link quality when pre-determined synchronization sliding window or default step-out sliding window.

Description of the invention is given for the sake of example and description, and is not exhaustively Or it limit the invention to disclosed form.Many modifications and variations are for the common skill of this area It is obvious for art personnel.Selecting and describing embodiment is the principle in order to the present invention is more preferably described Apply with reality, and make those of ordinary skill in the art it will be appreciated that the present invention thus design is suitable The various embodiments with various amendments in special-purpose.

Claims

1. a radio link quality monitoring method, it is characterised in that including:

According to the signal to noise ratio of pilot signal and/or the mistake block of Traffic Channel in the radio frame signal obtained Rate, in conjunction with the Block Error Rate of Physical Downlink Control Channel, it is determined that described down wireless link synchronize or Step-out.

Method the most according to claim 1, it is characterised in that described Traffic Channel includes Physical Downlink Shared Channel.

Method the most according to claim 1, it is characterised in that obtain in radio frame signal The signal to noise ratio of pilot signal includes:

Obtain the available signal power value in radio frame signal and noise power value；

In the acquisition default acquisition cycle, the ratio of available signal power value and noise power value is flat Average, obtains presetting in the acquisition cycle signal to noise ratio of pilot signal in radio frame signal.

Method the most according to claim 1, it is characterised in that obtain the Block Error Rate of business Including:

In the acquisition default acquisition cycle in the Physical Downlink Shared Channel of CRC mistake Business data transmission block number, by the business data transmission block number of described CRC mistake With the ratio of business data transmission block number total in the Traffic Channel received in the default acquisition cycle, The Block Error Rate of Traffic Channel in the acquisition default acquisition cycle.

Method the most according to claim 1, it is characterised in that according to the noise obtained Ratio, in conjunction with the Block Error Rate of Physical Downlink Control Channel, it is determined that described down wireless link synchronize or Step-out includes:

The signal to noise ratio relatively got and the relation of pre-determined synchronization signal-noise ratio threshold value；

If the signal to noise ratio got is more than or equal to pre-determined synchronization signal-noise ratio threshold value, will synchronize respectively The enumerator of the enumerator of state and all states adds up 1, wherein, the counting of described all states Device is equal to the enumerator of desynchronizing state, the enumerator of synchronous regime and the enumerator of intermediateness Sum, described intermediateness between desynchronizing state and synchronous regime, the meter of described desynchronizing state Number device initial value within each desynchronizing state assessment cycle is zero；

If the signal to noise ratio got is more than or equal to presetting step-out signal-noise ratio threshold value, respectively by step-out The enumerator of the enumerator of state and all states adds up 1；

Otherwise, if the signal to noise ratio got is more than or equal to presetting step-out signal-noise ratio threshold value and being less than Pre-determined synchronization signal-noise ratio threshold value, respectively by the enumerator of the enumerator of intermediateness Yu all states Cumulative 1；

Enumerator, the enumerator of synchronous regime and Physical Downlink Control Channel according to desynchronizing state Block Error Rate, it is determined that described down wireless link synchronizes or step-out.

Method the most according to claim 1, it is characterised in that according to the business letter obtained The Block Error Rate in road, in conjunction with the Block Error Rate of Physical Downlink Control Channel, it is determined that described down wireless link Synchronize or step-out include:

The Block Error Rate of the Traffic Channel relatively got and the Block Error Rate threshold value of pre-set business channel Relation；

If the Block Error Rate of the Traffic Channel got is less than the Block Error Rate threshold value of pre-set business channel, Respectively the enumerator of the enumerator of synchronous regime Yu all states is added up 1, wherein, described all The enumerator of state is equal to the enumerator of desynchronizing state, the enumerator of synchronous regime and middle shape The enumerator sum of state, described intermediateness between desynchronizing state and synchronous regime, described mistake The enumerator of step state initial value within each desynchronizing state assessment cycle is zero；

If the Block Error Rate of the Traffic Channel got is more than or equal to the Block Error Rate door of pre-set business channel Limit value, adds up 1 respectively by the enumerator of the enumerator of desynchronizing state Yu all states；

Method the most according to claim 1, it is characterised in that according to the signal to noise ratio obtained With the Block Error Rate of Traffic Channel, and combine the Block Error Rate of Physical Downlink Control Channel, it is determined that under described Row wireless link synchronization or step-out include:

The signal to noise ratio relatively got and pre-determined synchronization signal-noise ratio threshold value, default step-out signal to noise ratio door The relation of limit value, and the Block Error Rate of the Block Error Rate of the Traffic Channel got and pre-set business channel The relation of threshold value；

If the signal to noise ratio got is more than or equal to pre-determined synchronization signal-noise ratio threshold value or gets The Block Error Rate of Traffic Channel is less than the Block Error Rate threshold value of pre-set business channel, respectively by synchronous regime The enumerator of enumerator and all states add up 1, wherein, the enumerator etc. of described all states In the enumerator of desynchronizing state, the enumerator of synchronous regime and intermediateness enumerator it With, described intermediateness between desynchronizing state and synchronous regime, the counting of described desynchronizing state Device initial value within each desynchronizing state assessment cycle is zero；

If the signal to noise ratio got is more than or equal to presetting step-out signal-noise ratio threshold value and the industry got The Block Error Rate of business channel is more than or equal to the Block Error Rate threshold value of pre-set business channel, respectively by step-out The enumerator of the enumerator of state and all states adds up 1；

8. according to the method described in claim 5,6 or 7, it is characterised in that according to step-out shape The enumerator of state, enumerator and the mistake of Physical Downlink Control Channel in default sliding window of synchronous regime Block rate, it is determined that described down wireless link synchronizes or step-out includes:

Identify whether the enumerator of all states reaches the radio frames that pre-determined synchronization sliding window is corresponding；

Enumerator in response to all states reaches the radio frames that pre-determined synchronization sliding window is corresponding, obtains Take the Block Error Rate of Physical Downlink Control Channel in pre-determined synchronization sliding window；

Identify whether the enumerator of synchronous regime reaches pre-determined synchronization count threshold, and preset same In step sliding window, whether the Block Error Rate of Physical Downlink Control Channel controls more than pre-determined synchronization physical down The Block Error Rate threshold value of channel；

If the enumerator of synchronous regime reaches pre-determined synchronization count threshold, or pre-determined synchronization slides In window, the Block Error Rate of Physical Downlink Control Channel is not more than the mistake of pre-determined synchronization Physical Downlink Control Channel Block rate threshold value, it is determined that described down wireless link synchronizes；

Otherwise, if the enumerator of synchronous regime is not up to pre-determined synchronization count threshold, and preset In synchronous slide window, the Block Error Rate of Physical Downlink Control Channel controls letter more than pre-determined synchronization physical down The Block Error Rate threshold value in road, identifies whether the enumerator of all states reaches to preset step-out sliding window pair The radio frames answered；

Enumerator in response to all states reaches to preset the radio frames that step-out sliding window is corresponding, knows Whether the enumerator of other desynchronizing state reaches to preset step-out count threshold, and default step-out is slided In window, whether the Block Error Rate of Physical Downlink Control Channel is more than presetting step-out Physical Downlink Control Channel Block Error Rate threshold value；

If the enumerator of desynchronizing state reaches to preset step-out count threshold, and default step-out is slided In window, the Block Error Rate of Physical Downlink Control Channel is more than the mistake block presetting step-out Physical Downlink Control Channel Rate threshold value, it is determined that described down wireless link step-out.

Method the most according to claim 8, it is characterised in that obtain and preset in sliding window The Block Error Rate of Physical Downlink Control Channel includes:

Obtain the business data transmission block of the Physical Downlink Control Channel detecting mistake in presetting sliding window Number, by detecting the business data transmission of the Physical Downlink Control Channel of mistake in this default sliding window The business data transmission that block number is total with the Physical Downlink Control Channel of detection mistake in default sliding window The ratio of block number, the Block Error Rate of Physical Downlink Control Channel in the default sliding window of acquisition.

Method the most according to claim 9, it is characterised in that also include identifying wireless Penetrate and receive the operation whether present mode of unit is discontinuous reception modes.

11. methods according to claim 10, it is characterised in that if present mode is non- Receiving pattern continuously, the described default acquisition cycle is the unlatching duration of wireless transmitter receiver unit Between；

Described pre-determined synchronization sliding window is pre-determined synchronization assessment cycle, and described default step-out sliding window is Presetting step-out assessment cycle, wherein, pre-determined synchronization assessment cycle is less than presetting step-out assessment cycle.

12. methods according to claim 10, it is characterised in that if present mode is not Discontinuous reception modes, the described default acquisition cycle is a radio frames；

Described pre-determined synchronization sliding window is M wireless frame length, and described default step-out sliding window is N Individual wireless frame length, M, N are the integer more than 1, and M < N.

13. methods according to claim 12, it is characterised in that the value of M is 10, The value of N is 20.

14. methods according to claim 12, it is characterised in that if present mode is not Discontinuous reception modes, also includes:

Identify whether wireless transmitter receiver unit is configured to semi-persistent scheduling pattern；

If wireless transmitter receiver unit is not configured as semi-persistent scheduling pattern, perform described according to mistake The enumerator of step state, enumerator and the Block Error Rate of Physical Downlink Control Channel of synchronous regime, sentence Fixed described down wireless link synchronizes or the operation of step-out；

If wireless transmitter receiver unit is configured to semi-persistent scheduling pattern, identify the meter of all states Whether number device reaches the radio frames that pre-determined synchronization sliding window is corresponding；

Enumerator in response to all states reaches the radio frames that pre-determined synchronization sliding window is corresponding, knows Whether other semi-persistent scheduling is more than pre-determined synchronization sliding window dispatching cycle；

If semi-persistent scheduling identifies the counting of synchronous regime more than pre-determined synchronization sliding window dispatching cycle Whether device reaches pre-determined synchronization count threshold；

If the enumerator of synchronous regime reaches pre-determined synchronization count threshold, it is determined that described descending wireless Link synchronization；

Otherwise, if the enumerator of synchronous regime is not up to pre-determined synchronization count threshold, identify all Whether the enumerator of state reaches to preset the radio frames that step-out sliding window is corresponding；In response to all shapes The enumerator of state reaches to preset the radio frames that step-out sliding window is corresponding, identifies semi-persistent scheduling scheduling Whether the cycle is more than presetting step-out sliding window；

If semi-persistent scheduling identifies the counting of desynchronizing state more than presetting step-out sliding window dispatching cycle Whether device reaches to preset step-out count threshold；If the enumerator of desynchronizing state reaches to preset step-out meter Number threshold value, it is determined that described down wireless link step-out；Otherwise, if semi-persistent scheduling dispatching cycle Less than or equal to presetting step-out sliding window, identify whether the enumerator of desynchronizing state reaches to preset step-out In count threshold, and default step-out sliding window, the Block Error Rate of Physical Downlink Control Channel is the biggest Block Error Rate threshold value in default step-out Physical Downlink Control Channel；If the enumerator of desynchronizing state reaches The mistake of Physical Downlink Control Channel in default step-out count threshold, and default step-out sliding window Block rate is more than the Block Error Rate threshold value presetting step-out Physical Downlink Control Channel, it is determined that described descending nothing Wired link step-out；

Otherwise, if semi-persistent scheduling is less than or equal to pre-determined synchronization sliding window dispatching cycle, institute is performed State and obtain the operation of the Block Error Rate of Physical Downlink Control Channel in pre-determined synchronization sliding window.

15. methods according to claim 10, it is characterised in that under described predetermined physical It is 1 that row shares the Block Error Rate threshold value of channel；And/or

The Block Error Rate threshold value of described pre-determined synchronization Physical Downlink Control Channel is 10%；And/or

Described pre-determined synchronization count threshold is 1；And/or

The Block Error Rate threshold value of described pre-determined synchronization Physical Downlink Control Channel is 2%；And/or

Described default step-out count threshold is the 80% of the enumerator of all states；And/or

The Block Error Rate threshold value of described default step-out Physical Downlink Control Channel is 10%.

16. 1 kinds of radio link quality monitoring devices, it is characterised in that including:

Receive unit, for receiving radio frame signal by down wireless link；

Decision unit, pilot signal in the radio frame signal obtained according to described acquiring unit Signal to noise ratio and/or the Block Error Rate of Traffic Channel, and combine the Block Error Rate of Physical Downlink Control Channel, Judge that described down wireless link synchronizes or step-out.

17. devices according to claim 16, it is characterised in that described Traffic Channel bag Include Physical Downlink Shared Channel.

18. devices according to claim 16, it is characterised in that described decision unit bag Include:

Relatively subelement, believes with pre-determined synchronization for the signal to noise ratio that relatively described acquiring unit gets Make an uproar and preset step-out letter than threshold value pre-determined synchronization signal-noise ratio threshold value, default step-out signal-noise ratio threshold value Make an uproar than the relation of threshold value；

Count sub-element, is used for according to the comparative result comparing subelement, if the signal to noise ratio got More than or equal to pre-determined synchronization signal-noise ratio threshold value, respectively by the counter synchronisation state of synchronous regime The enumerator of all states of enumerator of enumerator and all states add up 1, wherein, described institute There is the enumerator of state equal to the enumerator of desynchronizing state, the enumerator of synchronous regime and centre The enumerator sum of state, described intermediateness is between desynchronizing state and synchronous regime, described The enumerator of desynchronizing state initial value within each desynchronizing state assessment cycle is zero；If getting Signal to noise ratio more than or equal to preset step-out signal-noise ratio threshold value, respectively by the enumerator of desynchronizing state 1 is added up with the enumerator of all states；Otherwise, if the signal to noise ratio got is more than or equal to presetting Step-out signal-noise ratio threshold value and less than pre-determined synchronization signal-noise ratio threshold value, respectively by the meter of intermediateness The enumerator of number devices and all states adds up 1；

Judgement subelement, the enumerator of the desynchronizing state for counting to get according to count sub-element, The enumerator of synchronous regime and the Block Error Rate of Physical Downlink Control Channel, it is determined that described descending radio chains Road synchronizes or step-out.

19. devices according to claim 16, it is characterised in that described decision unit bag Include:

Relatively subelement, for the relatively Traffic Channel that described acquiring unit gets Block Error Rate with The relation of the Block Error Rate threshold value of pre-set business channel；

Count sub-element, is used for according to the comparative result comparing subelement, if the business letter got The Block Error Rate in road is less than the Block Error Rate threshold value of pre-set business channel, respectively by the counting of synchronous regime The enumerator of all states of enumerator of the enumerator of device synchronous regime and all states adds up 1, its In, the enumerator of described all states is equal to the enumerator of desynchronizing state, the counting of synchronous regime The enumerator sum of device and intermediateness, described intermediateness is between desynchronizing state and Tong Bu shape Between state, the enumerator of described desynchronizing state initial value within each desynchronizing state assessment cycle is Zero；If the Block Error Rate of the Traffic Channel got is more than or equal to the Block Error Rate door of pre-set business channel Limit value, adds up 1 respectively by the enumerator of the enumerator of desynchronizing state Yu all states；

20. devices according to claim 16, it is characterised in that described decision unit bag Include:

Relatively subelement, believes with pre-determined synchronization for the signal to noise ratio that relatively described acquiring unit gets Make an uproar and preset step-out letter than threshold value pre-determined synchronization signal-noise ratio threshold value, default step-out signal-noise ratio threshold value Make an uproar the ratio relation of threshold value, and the Block Error Rate of the Traffic Channel got and pre-set business channel The relation of Block Error Rate threshold value；

Count sub-element, is used for according to the comparative result comparing subelement, if the signal to noise ratio got It is less than more than or equal to pre-determined synchronization signal-noise ratio threshold value or the Block Error Rate of Traffic Channel that gets The Block Error Rate threshold value of pre-set business channel, respectively by the meter of the counter synchronisation state of synchronous regime The enumerator of all states of enumerator of number devices and all states adds up 1, wherein, described all shapes The enumerator of state is equal to the enumerator of desynchronizing state, the enumerator of synchronous regime and intermediateness Enumerator sum, described intermediateness between desynchronizing state and synchronous regime, described step-out The enumerator of state initial value within each desynchronizing state assessment cycle is zero；If the letter got Make an uproar ratio more than or equal to presetting step-out signal-noise ratio threshold value and the Block Error Rate of Traffic Channel that gets is big In or equal to the Block Error Rate threshold value of pre-set business channel, respectively by enumerator and the institute of desynchronizing state The enumerator having state adds up 1；Otherwise, if the signal to noise ratio got is more than or equal to presetting step-out Signal-noise ratio threshold value and less than pre-determined synchronization signal-noise ratio threshold value, respectively by the enumerator of intermediateness 1 is added up with the enumerator of all states；

21. according to the device described in claim 18,19 or 20, it is characterised in that described in sentence Certainly subelement specifically indicates the meter comparing all states that subelement identification count sub-element counts to get Whether number device reaches the radio frames that pre-determined synchronization sliding window is corresponding；According to the identification comparing subelement As a result, the enumerator in response to all states reaches to preset the radio frames that step-out sliding window is corresponding, Described acquiring unit is indicated to obtain the Block Error Rate of Physical Downlink Control Channel in pre-determined synchronization sliding window； And

Whether instruction compares the enumerator of the synchronous regime that subelement identification count sub-element counts to get Reach Physical Downlink Control Channel in pre-determined synchronization count threshold, and pre-determined synchronization sliding window Whether Block Error Rate is more than the Block Error Rate threshold value of pre-determined synchronization Physical Downlink Control Channel；And according to The relatively recognition result of subelement, if the enumerator of synchronous regime reaches pre-determined synchronization count threshold Value, or in pre-determined synchronization sliding window, the Block Error Rate of Physical Downlink Control Channel is not more than pre-determined synchronization The Block Error Rate threshold value of Physical Downlink Control Channel, it is determined that described down wireless link synchronizes；

Otherwise, if the enumerator of synchronous regime is not up to pre-determined synchronization count threshold, and preset In synchronous slide window, the Block Error Rate of Physical Downlink Control Channel controls letter more than pre-determined synchronization physical down The Block Error Rate threshold value in road, instruction compares whether the enumerator of all states of subelement identification reaches pre- If the radio frames that step-out sliding window is corresponding；And according to comparing the recognition result of subelement, response Enumerator in all states reaches to preset the radio frames that step-out sliding window is corresponding, indicates more sub Whether the enumerator of unit identification desynchronizing state reaches to preset step-out count threshold, and presets mistake In step sliding window, whether the Block Error Rate of Physical Downlink Control Channel is more than presetting the control of step-out physical down The Block Error Rate threshold value of channel；And according to comparing the recognition result of subelement, if desynchronizing state In enumerator reaches to preset step-out count threshold, and default step-out sliding window, physical down controls The Block Error Rate of channel is more than the Block Error Rate threshold value presetting step-out Physical Downlink Control Channel, it is determined that institute State down wireless link step-out.

22. devices according to claim 21, it is characterised in that also include:

Whether the first recognition unit, be non-company for identifying the present mode of wireless transmitter receiver unit Pattern is received in continued access.

23. devices according to claim 22, it is characterised in that if present mode is non- Receiving pattern continuously, the described default acquisition cycle is the unlatching duration of wireless transmitter receiver unit Between；

Described pre-determined synchronization sliding window is pre-determined synchronization assessment cycle pre-determined synchronization assessment cycle, described Preset step-out sliding window and preset step-out assessment cycle for presetting step-out assessment cycle, wherein, preset same Step assessment cycle < presets step-out assessment cycle.

24. devices according to claim 22, it is characterised in that if present mode is not Discontinuous reception modes, the described default acquisition cycle is a radio frames；

25. devices according to claim 24, it is characterised in that also include:

Second recognition unit, for the recognition result according to the first recognition unit, if present mode is not It is discontinuous reception modes, identifies whether wireless transmitter receiver unit is configured to semi-persistent scheduling mould Formula；

Described decision unit is with specific reference to the recognition result of described second recognition unit, if wireless transmit Receive unit and be not configured as semi-persistent scheduling pattern, perform the described counting according to desynchronizing state Device, the enumerator of synchronous regime and the Block Error Rate of Physical Downlink Control Channel, it is determined that described descending nothing Wired link synchronizes or the operation of step-out；If wireless transmitter receiver unit is configured to semi-persistent scheduling Pattern, described judgement subelement specifically indicates whether compare the enumerator of all states of subelement identification Reach the radio frames that pre-determined synchronization sliding window is corresponding；According to comparing the recognition result of subelement, ring Should reach, in the enumerator of all states, the radio frames that pre-determined synchronization sliding window is corresponding, instruction is compared Whether subelement identification semi-persistent scheduling is more than pre-determined synchronization sliding window dispatching cycle；And according to than The recognition result of relatively subelement, if semi-persistent scheduling is more than pre-determined synchronization sliding window dispatching cycle, refers to Show whether the enumerator comparing subelement identification synchronous regime reaches pre-determined synchronization count threshold；With And according to comparing the recognition result of subelement, if the enumerator of synchronous regime reaches pre-determined synchronization counting Threshold value, it is determined that described down wireless link synchronizes；

Otherwise, the enumerator of synchronous regime is not up to pre-determined synchronization count threshold, indicates more sub Whether the enumerator of all states of unit identification reaches to preset the radio frames that step-out sliding window is corresponding； And according to comparing the recognition result of subelement, the enumerator in response to all states reaches to preset mistake The radio frames that step sliding window is corresponding, instruction is compared subelement identification semi-persistent scheduling and is dispatching cycle No more than presetting step-out sliding window；According to comparing the recognition result of subelement, if semi-persistent scheduling is adjusted Spending the cycle more than presetting step-out sliding window, instruction is compared the enumerator of subelement identification desynchronizing state and is No reaching presets step-out count threshold；According to comparing the recognition result of subelement, if desynchronizing state Enumerator reach preset step-out count threshold, it is determined that described down wireless link step-out, no Then, if semi-persistent scheduling is less than or equal to presetting step-out sliding window dispatching cycle, more sub-list is indicated Unit identifies whether the enumerator of desynchronizing state reaches to preset step-out count threshold, and default step-out In sliding window, whether the Block Error Rate of Physical Downlink Control Channel is more than presetting step-out physical down control letter The Block Error Rate threshold value in road；According to comparing the recognition result of subelement, if the enumerator of desynchronizing state Reach to preset Physical Downlink Control Channel in step-out count threshold, and default step-out sliding window Block Error Rate is more than the Block Error Rate threshold value presetting step-out Physical Downlink Control Channel, it is determined that described descending Radio link failure；Otherwise, if semi-persistent scheduling slides less than or equal to pre-determined synchronization dispatching cycle Window, starts to perform the described acquiring unit of described instruction and obtains physical down control in pre-determined synchronization sliding window The operation of the Block Error Rate of channel processed.

26. 1 kinds of wireless transmitter receiver unit, it is characterised in that include that physical layer element is with higher Layer unit；

Described physical layer element is used for receiving radio frame signal by down wireless link, and according in advance If the cycle of acquisition, obtain signal to noise ratio and/or the mistake of Traffic Channel of pilot signal in radio frame signal Block rate；According to the signal to noise ratio of pilot signal and/or the mistake of Traffic Channel in the radio frame signal obtained Block rate, and combine the Block Error Rate of Physical Downlink Control Channel, it is determined that described down wireless link synchronizes Or step-out, and refer to the transmission wireless link synchronization instruction of higher level unit or radio link failure Show；

27. wireless transmitter receiver unit according to claim 26, it is characterised in that institute State physical layer element and be specially the radio link quality prison described in claim 16 to 25 any one Survey device.

28. exist according to the wireless transmitter receiver unit described in claim 26 or 27, its feature In, described higher level unit includes medium access control unit, radio resource control unit or nothing Wired link control unit.

29. 1 kinds of subscriber equipmenies, it is characterised in that include claim 26 to 28 any one Described wireless transmitter receiver unit.