CN106559830A - The method and apparatus that measurement and report received signal strength are indicated in authorizing auxiliary to access - Google Patents

Abstract

Embodiment of the disclosure is there is provided the method and apparatus and the method and apparatus for the RSSI used in authorizing auxiliary to access that RSSI is indicated for measurement and report received signal strength in authorizing auxiliary to access.Method for measurement and report RSSI in authorizing auxiliary to access includes：Determine whether to receive the instruction of channel occupation status from base station；RSSI is measured based on the determination；And to the RSSI measured by the base station repeats.Rssi measurement and report mechanism in accordance with an embodiment of the present disclosure can keep low signaling consumption.

Description

Measurement and report in authorizing auxiliary to access The method and apparatus of received signal strength indicator

Technical field

Embodiment of the disclosure is usually related to wireless communication technology, more particularly, to (RSSI) is indicated in measurement and report received signal strength in authorizing auxiliary to access (LAA) Method and apparatus and the method and apparatus for the RSSI used in LAA.

Background technology

Routinely be deployed in authorize frequency spectrum in third generation partner program 3GPP it is long-term Evolution LTE is faced with the tremendous growth of data traffic.Even if LTE efficiently can be utilized Frequency spectrum, but authorize the frequency spectrum for LTE to be very limited amount of and be exclusively to be reserved 's.Therefore, considering LTE is deployed in the unlicensed spectrum less than 6GHz, this The LTE-LAA (hereinafter abbreviation LAA) to unlicensed spectrum deployment will be become.

Specify with regard to the technical report TR 36.889-101 of LAA, in Channel assignment The purpose of detection of concealed node, user equipment (UE) is to enode b (eNB) report The measurement of received signal strength indicator (RSSI) is considered as useful, and eNB can Indicate UE should report RSSI for which carrier wave.

LTE provided for radio resources management (RRM) is measured for mobility and load balance It is necessary, which mainly includes that Reference Signal Received Power (RSRP), reference signal are received The measurement of quality (RSRQ) and RSSI.Wherein, RSRP is represented at special symbol (symbol) It is interior carry reference signal all resource elements (RE) on receive signal power it is average Value, i.e., useful signal power；And RSSI represents that what is received in the special symbol owns Signal (including reference signal and data signal, adjacent area interference signal, noise signal etc.) work( The load of the meansigma methodss of rate, i.e. frequency layer；RSRQ represents signal quality.On frequency spectrum is authorized, Weeks of traditional UE based on the public reference signal (CRS) and/or low duty ratio for continuously transmitting Phase property finds signal to perform RRM measurements.Although additionally, RSRP, RSRQ and RSSI Be required to it is measured in UE sides, but UE only to eNB report RSRP and RSRQ.

For LAA, RRM measurements should at least keep all of LTE RRM measurements Traditional function.Further, since LAA eNB must be with other wireless access technologys (RAT) Coexist, so LAA RRM measurements should support the other functions for coexisting between RAT, Such as idle channel accesses (CCA) and carrier wave is selected.Thus, not only need to measure RSSI, And need to the measured RSSI of eNB reports, so that eNB understands the interference of UE sides And the load state of carrier wave.In addition, eNB can utilize the RSSI in the particular procedure period Statistics carrying out carrier wave selection.Further, the RSSI reports carried out by UE are recognized as Contribute to solving hidden node problem.

Therefore, at least the purpose with concealed nodes detection is selected for carrier wave, need introducing to have The rssi measurement and report mechanism of effect, and while keep low signaling consumption.But, how Design rssi measurement and report mechanism to support that the two purposes are still unknown so far.

The content of the invention

Embodiment of the disclosure provides a kind of for measuring in LAA and reporting RSSI's Method and apparatus and a kind of method and apparatus for the RSSI used in LAA, to solve Alleviate certainly or at least in part the above-mentioned problems in the prior art.

First aspect in accordance with an embodiment of the present disclosure, there is provided a kind of for the survey in LAA Amount and the method for reporting RSSI.The method includes：Determining whether, channel is received from base station accounts for With the instruction of state；RSSI is measured based on the determination；And to the base station repeats institute The RSSI of measurement.

In certain embodiments, included measuring RSSI based on the determination：In response to determining The instruction of the channel occupation status is not received by, measures multiple instantaneous in measurement period RSSI。

In certain embodiments, the method is further included：It is not received by response to determining The instruction of the channel occupation status, from the subframe for coming from the base station, detection is with reference to letter Number；And in response to detecting the reference signal, determine that the channel occupation status are numerous Busy condition.

In certain embodiments, included measuring RSSI based on the determination：In response to determining The instruction of the instruction and the channel occupation status that receive the channel occupation status refers to The bright channel occupation status are busy state, and multiple instantaneous RSSI are measured in measurement period.

In certain embodiments, include to the RSSI measured by the base station repeats：Calculate institute State the difference between multiple instantaneous RSSI and corresponding Reference Signal Received Power RSRP；Will Each in the difference is compared with the first predetermined threshold；And in response to the difference At least one of value difference is more than first predetermined threshold, to the base station repeats described in At least one difference, or indicate to base station repeats interference.

In certain embodiments, the method is further included：It is not received by response to determining The instruction of the channel occupation status, from the subframe for coming from the base station, detection is with reference to letter Number；And in response to being not detected by the reference signal, it is the plurality of to the base station repeats Instantaneous RSSI.

In certain embodiments, the channel occupation status are not received by response to determining Indicate, multiple instantaneous RSSI are measured in measurement period to be included：From coming from the base station The subcarrier mourned in silence is pre-configured with by the base station is detected in subframe；And in response to detection To the subcarrier mourned in silence, measure the plurality of instantaneous on the subcarrier mourned in silence RSSI。

In certain embodiments, further include to the RSSI measured by the base station repeats： To the time of measuring that the base station repeats are associated with the instantaneous RSSI.

In certain embodiments, included measuring RSSI based on the determination：In response to determining The instruction of the instruction and the channel occupation status that receive the channel occupation status refers to The bright channel occupation status are idle condition, and multiple instantaneous RSSI are measured in measurement period； And calculate the meansigma methodss of the plurality of instantaneous RSSI.

In certain embodiments, include to the RSSI measured by the base station repeats：To described The meansigma methodss of the plurality of instantaneous RSSI of base station repeats.

In certain embodiments, the method is further included：By the plurality of instantaneous RSSI with Second predetermined threshold is compared；Calculating is more than the instantaneous RSSI's of second predetermined threshold Ratio between number and the number less than or equal to the instantaneous RSSI of second predetermined threshold Rate；And to ratio described in the base station repeats.

Second aspect in accordance with an embodiment of the present disclosure, there is provided a kind of for making in LAA With the method for RSSI.The method includes：RSSI is received from user equipment in base station, its Described in RSSI by the user equipment based on determining whether receiving channel from the base station The instruction of seizure condition and measure；And access in the mandate auxiliary for the user equipment Used in the RSSI that received.

In certain embodiments, the RSSI by the user equipment based on a determination that not from institute State base station to receive the instruction of channel occupation status and measure.

In certain embodiments, receiving RSSI from user equipment includes：Receive the user to set The instantaneous RSSI of at least one of the standby multiple instantaneous RSSI measured in measurement period.

In certain embodiments, receive RSSI from user equipment to further include：Receive and institute State the associated time of measuring of at least one instantaneous RSSI.

In certain embodiments, the method is further included：It is determined that in the time of measuring institute It is busy state or idle condition to state channel occupation status.

In certain embodiments, the method is further included：In response to determining in the measurement Channel occupation status described in time are busy states, it is determined that whether the number of the RSSI for being received More than zero.

In certain embodiments, used in the mandate auxiliary for the user equipment is accessed The RSSI includes：In response to determining that the number of received RSSI is more than zero, based on institute The RSSI of reception is detected come the concealed nodes carried out for the user equipment.

In certain embodiments, methods described is further included：In response to determining in the survey Channel occupation status described in the amount time are busy states, it is determined whether received from the UE dry Disturb instruction.

In certain embodiments, used in the mandate auxiliary for the user equipment is accessed The RSSI includes：In response to determining that receiving the interference indicates, is referred to based on the interference Show that the concealed nodes to carry out for the user equipment are detected.

In certain embodiments, the method is further included：In response to determining in the measurement Channel occupation status described in portion of time in time are busy states and in the survey Channel occupation status described in another part time in the amount time are idle conditions, from being received RSSI in select the RSSI that measures under the idle condition；And calculate selected The meansigma methodss of RSSI.

In certain embodiments, the method is further included：By selected RSSI and first Predetermined threshold is compared；And calculate the number of the RSSI for being more than first predetermined threshold With the ratio between the number less than or equal to the RSSI of first predetermined threshold.

In certain embodiments, used in the mandate auxiliary for the user equipment is accessed The RSSI includes：Based at least one in the meansigma methodss and the ratio, enter the hand-manipulating of needle The carrier wave of the user equipment is selected.

In certain embodiments, the method is further included：In response to determining in the measurement Channel occupation status described in portion of time in time are busy states and in the survey Channel occupation status described in another part time in the amount time are idle conditions, from being received RSSI in select the RSSI that measures under the busy state；And calculate selected Difference between each in RSSI and corresponding Reference Signal Received Power RSRP.

In certain embodiments, used in the mandate auxiliary for the user equipment is accessed The RSSI includes：Based on the difference, the concealed nodes for the user equipment are carried out Detection.

In certain embodiments, the method is further included：Sending to the user equipment Subframe in configure the subcarrier mourned in silence so that the user equipment is in the son mourned in silence The plurality of instantaneous RSSI is measured on carrier wave.

In certain embodiments, the RSSI by the user equipment based on a determination that from the base Station receives the instruction of channel occupation status and measures.

In certain embodiments, the instruction of the channel occupation status indicates the channel occupancy State is busy state；And wherein receiving RSSI from the user equipment includes：Receive institute State at least one of multiple instantaneous RSSI that user equipment is measured in measurement period instantaneous RSSI。

In certain embodiments, used in the mandate auxiliary for the user equipment is accessed The RSSI includes：Carried out for the hidden of the user equipment based on the RSSI for being received Hide nodal test.

In certain embodiments, the instruction of the channel occupation status indicates the channel occupancy State is idle condition；And wherein receiving RSSI from the user equipment includes：Receive institute State the meansigma methodss of multiple instantaneous RSSI.

In certain embodiments, receive RSSI from user equipment to further include：Reception is more than The number of the instantaneous RSSI of the second predetermined threshold be less than or equal to second predetermined threshold Instantaneous RSSI number between ratio.

In certain embodiments, used in the mandate auxiliary for the user equipment is accessed The RSSI includes：Based at least one in the meansigma methodss and the ratio, enter the hand-manipulating of needle The carrier wave of the user equipment is selected.

The third aspect in accordance with an embodiment of the present disclosure, there is provided a kind of for the survey in LAA The device of amount and report RSSI.The device includes：Determining unit, is configured to determine whether The instruction of channel occupation status is received from base station；Measuring unit, is configured to based on described It is determined that to measure RSSI；And reporting unit, it is configured to measured by the base station repeats RSSI.

In certain embodiments, the measuring unit is further configured to：In response to determining The instruction of the channel occupation status is not received by, measures multiple instantaneous in measurement period RSSI。

In certain embodiments, described device is further included：First detector unit, is matched somebody with somebody It is set in response to determining the instruction for being not received by the channel occupation status, from coming from Reference signal is detected in the subframe for stating base station；And wherein described determining unit is further matched somebody with somebody Be set to and the reference signal detected in response to first detector unit, determine the channel Seizure condition is busy state.

In certain embodiments, the measuring unit is further configured to：In response to determining The instruction of the instruction and the channel occupation status that receive the channel occupation status refers to The bright channel occupation status are busy state, and multiple instantaneous RSSI are measured in measurement period.

In certain embodiments, described device is further included：First computing unit, is matched somebody with somebody It is set between the plurality of instantaneous RSSI and corresponding Reference Signal Received Power RSRP of calculating Difference；And first comparing unit, it is configured to each in the difference and One predetermined threshold is compared；And wherein described reporting unit is further configured to response It is more than first predetermined threshold at least one of difference difference, to the base station At least one difference is reported, or is indicated to base station repeats interference.

In certain embodiments, described device is further included：First detector unit, is matched somebody with somebody It is set in response to determining the instruction for being not received by the channel occupation status, from coming from Reference signal is detected in the subframe for stating base station；And wherein described reporting unit is further matched somebody with somebody Be set to and the reference signal be not detected by response to first detector unit, to the base station Report the plurality of instantaneous RSSI.

In certain embodiments, the measuring unit is further configured to：From coming from The subcarrier mourned in silence is pre-configured with by the base station is detected in the subframe for stating base station；And ring Ying Yu detects the subcarrier mourned in silence, and on the subcarrier mourned in silence measures described many Individual instantaneous RSSI.

In certain embodiments, the reporting unit is further configured to：To the base station The time of measuring that report is associated with the instantaneous RSSI.

In certain embodiments, the measuring unit is further configured to：In response to determining The instruction of the instruction and the channel occupation status that receive the channel occupation status refers to The bright channel occupation status are idle condition, and multiple instantaneous RSSI are measured in measurement period； And calculate the meansigma methodss of the plurality of instantaneous RSSI.

In certain embodiments, the reporting unit is further configured to：To the base station Report the meansigma methodss of the plurality of instantaneous RSSI.

In certain embodiments, described device is further included：Second comparing unit, is matched somebody with somebody It is set to and the plurality of instantaneous RSSI is compared with the second predetermined threshold；And second calculate Unit, be configured to calculate more than second predetermined threshold instantaneous RSSI number with it is little In or number equal to the instantaneous RSSI of second predetermined threshold between ratio；And institute State reporting unit to be further configured to ratio described in the base station repeats.

Fourth aspect in accordance with an embodiment of the present disclosure, there is provided a kind of for making in LAA With the device of RSSI.The device includes：Receiving unit, is configured to from user equipment receive RSSI, wherein the RSSI by the user equipment based on determining whether receiving letter from base station The instruction of road seizure condition and measure；And unit is used, it is configured to for the use The RSSI received used in accessing by the mandate auxiliary of family equipment.

In certain embodiments, the RSSI by the user equipment based on a determination that not from institute State base station to receive the instruction of channel occupation status and measure.

In certain embodiments, the receiving unit is further configured to：Receive the use The instantaneous RSSI of at least one of multiple instantaneous RSSI that family equipment is measured in measurement period.

In certain embodiments, the receiving unit is further configured to：Receive with it is described At least one instantaneous RSSI associated time of measuring.

In certain embodiments, the use unit is further configured to：It is determined that described Channel occupation status described in time of measuring are busy state or idle condition.

In certain embodiments, the use unit is further configured to：In response to determining It is busy state in channel occupation status described in the time of measuring, it is determined that the RSSI for being received Number whether be more than zero.

In certain embodiments, the use unit is further configured to：In response to determining The number of the RSSI for being received is more than zero, is carried out for described based on the RSSI for being received The concealed nodes detection of user equipment.

In certain embodiments, the use unit is further configured to：In response to determining The number of the RSSI for being received is more than zero, calculates the number of received RSSI and adopts with predetermined Ratio between the number of sampling point；And determine whether the ratio is more than the 3rd predetermined threshold.

In certain embodiments, the use unit is further configured to：In response to determining The ratio is more than the 3rd predetermined threshold, is carried out for institute based on the RSSI for being received State the concealed nodes detection of user equipment.

In certain embodiments, the use unit is further configured to：In response to determining It is busy state in channel occupation status described in the time of measuring, it is determined whether from the UE Receive interference to indicate.

In certain embodiments, the use unit is further configured to：In response to determining Receive the interference to indicate, carried out for the user equipment based on the interference instruction Concealed nodes detection.

In certain embodiments, the use unit is further configured to：In response to determining Channel occupation status described in portion of time in the time of measuring be busy state and And channel occupation status described in another part time in the time of measuring are idle shapes State, selects the RSSI measured under the idle condition from the RSSI for being received；And Calculate the meansigma methodss of selected RSSI.

In certain embodiments, the use unit is further configured to：Will be selected RSSI is compared with the first predetermined threshold；And calculate more than first predetermined threshold Between the number of RSSI and the number less than or equal to the RSSI of first predetermined threshold Ratio.

In certain embodiments, the use unit is further configured to：Based on described flat At least one in average and the ratio, carries out selecting for the carrier wave of the user equipment.

In certain embodiments, the use unit is further configured to：In response to determining Channel occupation status described in portion of time in the time of measuring be busy state and And channel occupation status described in another part time in the time of measuring are idle shapes State, selects the RSSI measured under the busy state from the RSSI for being received；And Calculate each and corresponding Reference Signal Received Power RSRP in selected RSSI it Between difference.

In certain embodiments, the use unit is further configured to：Based on the difference Value, carries out detecting for the concealed nodes of the user equipment.

In certain embodiments, described device is further included：Sub-carrier configuration unit, quilt It is configured to configure the subcarrier mourned in silence in the subframe sent to the user equipment, so that The user equipment measures the plurality of instantaneous RSSI on the subcarrier mourned in silence.

In certain embodiments, the RSSI by the user equipment based on a determination that from the base Station receives the instruction of channel occupation status and measures.

In certain embodiments, the instruction of the channel occupation status indicates the channel occupancy State is busy state；And wherein described receiving unit is further configured to：Receive institute State at least one of multiple instantaneous RSSI that user equipment is measured in measurement period instantaneous RSSI。

In certain embodiments, the use unit is further configured to：Based on being received RSSI come carry out for the user equipment concealed nodes detect.

In certain embodiments, the instruction of the channel occupation status indicates the channel occupancy State is idle condition；And wherein described receiving unit is further configured to：Receive institute State the meansigma methodss of multiple instantaneous RSSI.

In certain embodiments, the receiving unit is further configured to：Receive more than the The number of the instantaneous RSSI of two predetermined thresholds with less than or equal to second predetermined threshold Ratio between the number of instantaneous RSSI.

In certain embodiments, the use unit is further configured to：Based on described flat At least one in average and the ratio, carries out selecting for the carrier wave of the user equipment.

Embodiment of the disclosure provides the detailed and complete side for rssi measurement and report Case so that the RSSI that eNB can be reported used in LAA come at least solve carrier wave choosing Select the problem with concealed nodes detection.Additionally, rssi measurement in accordance with an embodiment of the present disclosure Low signaling consumption can be kept with report mechanism.

Description of the drawings

It is with reference to accompanying drawing and with reference to described further below, the feature of the presently disclosed embodiments, excellent Point and other in terms of will be apparent from, here is shown by way of example, and not by way of limitation Some embodiments of the disclosure are gone out.In the accompanying drawings：

Fig. 1 show first aspect in accordance with an embodiment of the present disclosure in LAA measurement and The flow chart of the method for report RSSI；

Fig. 2 show second aspect in accordance with an embodiment of the present disclosure used in LAA The flow chart of the method for RSSI；

Fig. 3 schematically show in the first scene in accordance with an embodiment of the present disclosure measurement, Report and using the flow process of RSSI；

Fig. 4 schematically show in the second scene in accordance with an embodiment of the present disclosure measurement, Report and using the flow process of RSSI；

Fig. 5 schematically show in the second scene in accordance with an embodiment of the present disclosure measurement, Report and using another flow process of RSSI；

Fig. 6 show the third aspect in accordance with an embodiment of the present disclosure in LAA measurement and The block diagram of the device of report RSSI；And

Fig. 7 show fourth aspect in accordance with an embodiment of the present disclosure used in LAA The block diagram of the device of RSSI.

Specific embodiment

The principle of theme described here is described referring now to some example embodiments.Should Work as understanding, describe these embodiments and be intended merely to enable those skilled in the art more preferably geographical Solution further realizes theme described here, and not limits master described here by any way The scope of topic.

Term " base station " as used herein can (BS) represent node B (NodeB or NB), Enode b (eNodeB or eNB), remote radio unit (RRU), radio frequency Head (RH), far end radio frequency head (RRH), repeater, low power nodes, such as slightly Base station, femto base station etc..

Term " user equipment " as used herein is (UE) that refer to be communicated with BS any is set It is standby.As an example, UE can include terminal, mobile terminal (MT), subscriber stations (SS), Portable subscriber platform (PSS), mobile station (MS) or access terminal (AT).

Generally, RSRP/RSRQ provides useful information to eNB, to help eNB to configure, Activation, solution configuration cell.In LAA, as different RAT and difference LAA are runed Between business, medium shares this property, RSRP/RSRQ may deficiency think Channel assignment and little Area's configuration/all of the information of solution configuration delivering.For example, in the LAA without concealed nodes, number It is higher (i.e., as LBT is operated according to experienced Signal Interference and Noise Ratio (SINR) is transmitted Only it is transmitted when channel does not have occupied), and if via the discovery with other cells The DRS that reference signal (DRS) is clashed measure RSRQ (depending on DRS transmit The details of design), then RSRQ may be well below real data SINR.

Similarly, the information for coming from traditional RSSI may there is also restriction, because traditional RSSI be via can not reflect LAA burst outside interference LTE (or LAA) letter Number measuring, and the RSSI may be more useful for Channel assignment.Therefore, it is existing Some RSRP/RSRQ/RSSI measurements are not enough to be used for LAA Channel assignments and concealed nodes The detection of problem, and the detection of Channel assignment and concealed nodes is in unlicensed spectrum Operation it is critical that.Based on discussed above, it is necessary to select for the channel in LAA systems Select new RRM measurements are introduced with the detection of concealed nodes.

Based on measurement period, two stages can be divided into for the rssi measurement of LAA： LAA nodes obtain channel before the unoccupied period in measurement, and LAA nodes into Work(obtains the measurement taken in the period after channel.

In view of Channel assignment, as useful information is the channel loading of other nodes, institute Should be based on the receiving power of the power not included from the cell reported with rssi measurement. It is therefore preferable that service eNB non-transmission period (that is, unoccupied period) measuring RSSI. In other words, the RSSI for measuring in the unoccupied period can be used for assessing and select for carrier wave Channel seizure ratio and load.

If however, main purpose is to be hidden the detection of node, then rssi measurement must The signal power from potential concealed nodes must be included." unlatching " of the cell reported In period (that is, taking the period), RSSI includes the signal work(from potential concealed nodes The probability of rate may be at a relatively high.Therefore, for the purpose of concealed nodes interferometry, preferably Rssi measurement is carried out in the transmission period of service eNB.In other words, in the period is taken The RSSI of measurement can be used for recognizing hidden node problem.

Thus, it is desirable to distinguish the rssi measurement under two kinds of transmission states.Furthermore, it is possible in nothing The multiple possible position of line electricity frame in performs the rssi measurement for RRM measurements.For example, In following scene, measured RSSI can be different：

Rssi measurement is carried out in the transmission period of the eNB including following subframe：

(1) finding in window, to transmit the subframe of DRS；Or

(2) eNB sends the subframe of down link signal.

Rssi measurement is carried out in the non-transmission period of the eNB including following subframe：

(1) subframe of DRS is not sent in the DRS periods thereon；Or

(2) subframe without downlink transmission or ul transmissions.

Each scene in above-mentioned scene can provide the different value of RSSI, because transmission section The collection credit union of point is different because of the LBT processes for channel access in each scene 's.

Although the different types of RSSI of report is probably beneficial, this may result in aobvious The signaling consumption of work, in the case of especially reporting RSSI on a large amount of unauthorized carrier waves.

Based on considerations above, first aspect in accordance with an embodiment of the present disclosure, there is provided a kind of For measurement and the method for reporting RSSI in authorizing auxiliary to access.Fig. 1 is shown according to this Disclosed embodiment first aspect for authorize auxiliary access in measurement and report RSSI Method 100 flow chart.Method 100 can be performed by the UE in cordless communication network, Especially, the device 600 that method 100 can be described later referring to Fig. 6 by this paper is performing.

Method 100 starts from step S110.In step S110, UE is determined whether from service ENB receives the instruction of channel occupation status.In certain embodiments, channel is accounted for by eNB Included or not included in the measurement control order sent to UE with the instruction of state, therefore UE is determined in the measurement control order after measurement control order is received from service eNB The no instruction including channel occupation status.It should be appreciated that eNB can also be by channel occupancy shape The instruction of state is included in UE in other signalings for sending, and the scope of the present invention is in this regard not It is restricted.

It is appreciated that channel occupation status include busy state or idle condition.Busy state Indicate that service node eNB has successfully obtained channel and carried out data transmission, and it is empty Though not busy state instruction service node eNB is not robbed has accounted for channel or service node eNB Successfully obtain channel but do not have data to transmission.In certain embodiments, channel occupancy The instruction of state includes the binary number of 1 bit.For example, busy state is represented using " 1 ", And adopt " 0 " to represent idle condition.

Additionally, herein, statement " channel occupation status are busy state ", " channel In take the period " and " the transmission period of eNB " can with used interchangeably, and state " believe Road seizure condition is idle condition ", " channel be in unoccupied period " and " eNB's Non-transmission period " can be used interchangeably.

Next, in step S120, UE measures RSSI based on the determination.Subsequently, In step S130, the RSSI measured by UE to service eNB reports.In certain embodiments, UE is in the subframe is pre-configured with by service eNB to the RSSI that service eNB reports are measured.

Second aspect in accordance with an embodiment of the present disclosure, there is provided a kind of in mandate auxiliary The method of RSSI used in access.Fig. 2 shows second aspect in accordance with an embodiment of the present disclosure For authorize auxiliary access used in RSSI method 200 flow chart.Method 200 Can be performed by the eNB in cordless communication network, especially, method 200 can be by this Text later referring to Fig. 7 descriptions device 700 performing.

Method 200 starts from step S210.In step S210, eNB receives RSSI from UE, The RSSI by UE based on determining whether from eNB receive channel occupation status instruction and Measurement.

As it was previously stated, eNB can by the instruction of channel occupation status include or not included in In the measurement control order sent to UE, therefore UE is receiving measurement from service eNB Whether the instruction of channel occupation status is included during the measurement control order is determined after control command.

In certain embodiments, measurement control order includes at least one in the following： The instruction of channel occupation status, measurement timing, measurement period, measurement granularity, energy measuring Threshold value；Wherein, measurement timing indicates that UE should start the time of rssi measurement, during measurement Section indicates that UE should perform the time period of rssi measurement wherein, and measurement granularity indicates UE The number of times of rssi measurement should be performed in measurement period.It is appreciated that being based on measurement period With measurement granularity, UE can determine perform rssi measurement time point (also referred to as sampled point). Additionally, the threshold value adopted when energy detection threshold is by performing energy measuring at the eNB.By It is as known in the art in energy measuring process, thus eNB can be according to the known procedure To configure any appropriate energy detection threshold.

Subsequently, in step S220, what eNB was received used in the LAA for the UE RSSI。

Hereinafter, by with reference to two concrete scenes describing the details of method 100 and 200.

First scene

In the first scene, eNB indicating channel occupation status to UE, i.e., without to UE sends the instruction of channel occupation status.Correspondingly, UE determines that being not received by channel accounts for With the instruction of state.Thus, it is in transmission state also right and wrong that UE will be unaware of servicing eNB Transmission state.In this case, UE can adopt three below option in any one come Measurement and report RSSI.

First option

In the first option, in response to determining the instruction for being not received by channel occupation status, UE measures multiple instantaneous RSSI in measurement period.Specifically, in the first option, UE To measure using following two modes and RSSI can be reported.

In first method, in response to determining the instruction for being not received by channel occupation status, UE detects reference signal from the subframe for coming from service eNB, and in response to detecting ginseng Signal is examined, determines that channel occupation status are busy state.In certain embodiments, with reference to letter Number include the following at least one：CRS, DRS, channel state information reference signals (CSI-RS).Based on the reference signal, UE can determine and the ginseng is carried in special symbol Examine the meansigma methodss of the signal power received on all RE of signal, i.e. RSRP.Thus, UE can calculate the difference between multiple instantaneous RSSI and corresponding RSRP, by the difference Each in value is compared with the first predetermined threshold, and in response in the difference At least one difference is more than first predetermined threshold, to service eNB reports described at least one Difference.It is appreciated that first predetermined threshold can be pre-configured with by service eNB.One In a little embodiments, first predetermined threshold is the energy measuring received from measurement control order Threshold value.Using which, when the difference is less than first predetermined threshold, UE will not be to Service eNB report the difference, so as to reduce feedback overhead.Additionally, in order to further drop Low feedback overhead, is more than the first predetermined threshold in response at least one of difference difference Value, UE can not report at least one difference to service eNB, but only to service eNB The corresponding interference of report is indicated.It should be appreciated that whenever a difference is more than the first predetermined threshold During value, UE just generates an interference and indicates, thus interfere with the number of instruction with more than this first The number of the difference of predetermined threshold is identical.In certain embodiments, the interference indicates bag Include the binary number of 1 bit.For example, represent there is interference using " 1 ".

In second method, in response to determining the instruction for being not received by channel occupation status, UE detects reference signal from the subframe for coming from service eNB, and in response to being not detected by The reference signal, reports the plurality of instantaneous RSSI to service eNB.In the second method, For example due to detection mistake or due to eNB transmission data of this period, so UE does not have Reference signal is detected, thus UE cannot learn channel occupation status now.Therefore, UE feeds back all of instantaneous RSSI to eNB.In this case, survey in some subframes The RSSI of amount potentially includes desired signal (i.e. the power of the Serving cell of UE) and comes From the power (disturbing) of other cells, because being the busy state phase in channel occupation status Between, eNB may not send reference signal in these subframes.

Additionally, in above-mentioned first method and second method, except reporting instantaneous RSSI to eNB Outside, the time of measuring that UE can be to be associated to eNB reports with the instantaneous RSSI.

In addition, being directed to above-mentioned first method and second method, eNB can take as follows respectively Operation.

For above-mentioned first method, it is multiple instantaneous that eNB reception UE are measured in measurement period The instantaneous RSSI of at least one of RSSI.Additionally, eNB can with from UE receive with it is described At least one instantaneous RSSI associated time of measuring.

Subsequently, eNB determine the time of measuring channel occupation status be busy state or Idle condition.If it is determined that be busy state in the time of measuring channel occupation status, then Whether eNB further determines that the number of received RSSI more than zero.If received The number of RSSI is more than zero, then can determine that received RSSI is that UE adopts above-mentioned first Mode is measured and is reported.

In addition, as it was previously stated, the measurement period of RSSI and measurement granularity are to be matched somebody with somebody by eNB in advance Put.In other words, the number of the sampled point and sampled point of UE execution rssi measurement is ENB institutes are predetermined.Thus, in response to determining that the number of received RSSI is more than zero, ENB further can be calculated between the number of number and predetermined sampled point of received RSSI Ratio, and determine whether the ratio is more than the 3rd predetermined threshold.Further, if Determine that the ratio is more than the 3rd predetermined threshold, then eNB is entered based on the RSSI for being received The hand-manipulating of needle is detected to the concealed nodes of the UE.3rd predetermined threshold can be any appropriate Value, for example, can be the arbitrary value between 30% to 60%.Additionally, such as above in relation to first Described by the first method of the first option of scene, channel occupancy shape is received when UE determines The instruction of state and the instruction of the channel occupation status indicate that channel occupation status are busy shape During state, UE can calculate the difference between multiple instantaneous RSSI and corresponding RSRP, will Each in the difference is compared with predetermined threshold, whenever a difference is pre- more than this When determining threshold value, UE just generates an interference and indicates.Thus, replace to eNB reports to be more than and be somebody's turn to do The difference of predetermined threshold, UE are indicated to the corresponding interference of eNB reports.Thus, if ENB determines that in time of measuring channel occupation status be busy state, and eNB can be further determined that Whether receive interference from UE to indicate, the interference indicate corresponding instantaneously RSSI with it is right Difference between the RSRP for answering is more than predetermined threshold.Thus, institute is received in response to determining State interference to indicate, eNB can determine UE using above-mentioned first method to measure RSSI.

Due to not including UE's in RSSI of the UE using the measurement of above-mentioned first method and report The power of Serving cell, but only include the power (disturbing) from other cells, because This eNB can indicate to carry out for the hidden of the UE based on the RSSI or interference that are received Hide nodal test.For example, eNB can be by the RSSI for being received and eNB itself measurements RSSI or predetermined threshold are compared, if the RSSI for being received is measured more than eNB itself RSSI or predetermined threshold, then to can determine and there is hidden node problem at the UE.

For above-mentioned second method, in response to determining during the part in the time of measuring Between channel occupation status be busy state and another part time in the time of measuring Channel occupation status are idle conditions, and eNB is selected in idle condition from the RSSI for being received The RSSI of lower measurement, and calculate the meansigma methodss of selected RSSI.Further, eNB Selected RSSI is compared with the first predetermined threshold, and is calculated more than described first The number of the RSSI of predetermined threshold is with the RSSI's less than or equal to first predetermined threshold Ratio between number.It is appreciated that the ratio can indicate channel seizure ratio, thus Dutycycle also called herein.Thus, eNB based on the meansigma methodss that calculated and can be accounted for Empty at least one than in is selected come the carrier wave carried out for the UE.Additionally, in some enforcements In example, first predetermined threshold is examined by the energy that adopts when eNB locates to perform energy measuring Survey threshold value.

In addition, it will be appreciated that as UE is using the measurement of above-mentioned second method and the RSSI for reporting The middle power (disturbing) that not only may include from other cells, but also including UE Serving cell power, therefore eNB is preferably not based on received RSSI to enter the hand-manipulating of needle The concealed nodes of the UE are detected.

Fig. 3 schematically show in the first scene UE using the measurement of above-mentioned second method and Flow processs of the report RSSI and eNB using RSSI.As shown in figure 3, in step 310, ENB configures UE to measure RSSI by sending measurement control order to UE.In step 320, UE measure instantaneous RSSI in response to the measurement control order.Subsequently, in step 330, Instantaneous RSSI measured by from UE to eNB reports.

In eNB sides, in step 340, eNB calculates the meansigma methodss of instantaneous RSSI and (puts down RSSI) and dutycycle.Subsequently, in step 350, eNB is based in taking the period and is surveyed The instantaneous RSSI of amount being hidden nodal test, and/or based on for the unoccupied period The meansigma methodss (i.e. average RSSI) and dutycycle are carrying out carrier wave selection.Afterwards, in step Rapid 360, eNB notifies channel of operation to UE.Thus, UE can be in the channel of operation Carry out conventional LTE communication.

It should be appreciated that the flow process shown in Fig. 3 is only schematic rather than determinate, on State second method to take than the more or less of operation shown in Fig. 3.

Second option

In the second option, UE be not as in the first option like that by detect reference signal come Determine channel occupation status.In order that UE can measure power not including Serving cell Received signal power, eNB configure the subcarrier mourned in silence in the subframe sent to the UE, make Obtain the subcarrier configured during data transfer to mourn in silence.Thus, UE is from coming from service The subcarrier mourned in silence being pre-configured with is detected in the subframe of eNB, and in response to detecting The subcarrier mourned in silence and multiple instantaneous RSSI are measured on the subcarrier mourned in silence.With Afterwards, UE is measured to service eNB reports in the service subframes that are pre-configured with of eNB Multiple instantaneous RSSI.

Additionally, in the second option, eNB be contemplated that in the subcarrier that configuration is mourned in silence with At least one in lower factor.

(1) cause not conflict from the position of the subcarrier mourned in silence of different districts, i.e. make The subcarrier mourned in silence obtained from different districts is orthogonal.In certain embodiments, pass through Time domain or frequency domain multiplexing, cause the subcarrier mourned in silence from different districts orthogonal. In certain embodiments, on frequency domain, for different cells, by the tool in same-sign The sub-carrier configuration for having different index number is the subcarrier mourned in silence.For example, in a symbol bag In the case of including 12 subcarriers, it is from one by the sub-carrier configuration that call number is 1 and 7 The subcarrier mourned in silence of individual cell, and by the sub-carrier configuration that call number is 2 and 8 be from The subcarrier mourned in silence of another cell.In certain embodiments, in time domain, for not Same cell, is the subcarrier mourned in silence by the sub-carrier configuration on distinct symbols.For example, exist In time domain, it is from the quiet of a cell by any two sub-carrier configuration on a symbol Silent subcarrier, and be from another by any two sub-carrier configuration on another symbol The subcarrier mourned in silence of individual cell.Additionally, the position of the subcarrier mourned in silence can be with cell mark Knowledge is bound, the position of the subcarrier thus implicitly at least mourned in silence.

(2) position of the subcarrier mourned in silence is caused not conflict with the position of reference signal, it is described Reference signal be, for example, master sync signal (PSS), secondary synchronizing signal (SSS), CRS, CSI-RS, location reference signals (PRS) etc..

(3) needs consider the number of the OFDM symbol for needing the subcarrier for being used in measurement to mourn in silence Mesh, to trade off between measurement accuracy and resource overhead.

In addition, being directed to above-mentioned second option, eNB can take following operation.

Specifically, eNB receives the multiple instantaneous RSSI that UE is measured in measurement period. Additionally, eNB can be receiving the time of measuring that is associated with the instantaneous RSSI from UE.

Subsequently, eNB determine the time of measuring channel occupation status be busy state or Idle condition.Further, if it is determined that the portion of time channel in the time of measuring Seizure condition is that busy state and another part time channel in the time of measuring are accounted for It is idle condition with state, then eNB is selected in the busy shape from the RSSI for being received The RSSI measured under state.Thus, eNB can be directed to based on selected RSSI The concealed nodes detection of the UE.For example, eNB can be by selected RSSI and eNB certainly The RSSI or predetermined threshold of body measurement is compared, if selected RSSI is more than eNB The RSSI or predetermined threshold of itself measurement, then to can determine and there are concealed nodes at the UE Problem.

In addition, similar with the first method in above-mentioned first option, if it is determined that in measurement Between channel occupation status be busy state and determine the number of received RSSI more than zero, Then eNB can further calculate the number of received RSSI and the number of predetermined sampled point Between ratio, and determine whether the ratio is more than predetermined threshold.Further, if Determine that the ratio is more than the predetermined threshold, then eNB is carried out based on the RSSI for being received Detect for the concealed nodes of the UE.

On the other hand, if it is determined that the portion of time channel occupancy in the time of measuring State is busy state and another part time channel occupancy shape in the time of measuring State is idle condition, then eNB is selected under the idle condition from the RSSI for being received The RSSI of measurement.Additionally, eNB method can calculate selected as described above The meansigma methodss of RSSI and calculate dutycycle.So as to eNB can be average based on what is calculated At least one in value and dutycycle is selected come the carrier wave carried out for the UE.

Additionally, it is appreciated that the RSSI for adopting second option to measure and report is accurate Instantaneous RSSI, wherein only include the interference from other cells, and do not include Serving cell Power.Additionally, in the second option, UE need not detect reference signal, so as to save Power.

3rd option

In the 3rd option, UE is taken and is grasped with the second method identical in above-mentioned first option Make to measure and report multiple instantaneous RSSI, channel is determined except by detecting reference signal Outside seizure condition.Additionally, in the 3rd option, except reporting instantaneous RSSI to eNB Outside, the time of measuring that UE can be to be associated to eNB reports with the instantaneous RSSI.

Correspondingly, eNB can also take and the second method phase being directed in above-mentioned first option Same operation.

It is appreciated that in the 3rd option, eNB need not indicate channel occupancy shape to UE State.Additionally, UE needs not distinguish between the RSSI and channel idle measured under channel busy state The RSSI measured under state, so as to simplify the operation of UE.

Second scene

In the second scene, eNB includes the instruction of channel occupation status in measurement control life In order.Correspondingly, there is the instruction of channel occupation status in UE in determining measurement control order. Thus, aware service eNB is in transmission state or non-transmitting state by UE.This In the case of, it is that, in transmission state or non-transmitting state, UE can be adopted according to service eNB Measured with any one in following two ways and report RSSI.

Fig. 4 is schematically shown the UE in the second scene and is measured using first method and reported Flow processs of the RSSI and eNB using RSSI.As shown in figure 4, in step 410, eNB By measurement control order being sent to UE configure UE to measure RSSI.

In step 420, in response to determining that the instruction for receiving channel occupation status and channel are accounted for Indicate that channel occupation status are busy state with the instruction of state, UE is measured in measurement period Multiple instantaneous RSSI.

Subsequently, the instantaneous RSSI in step 430, measured by UE to eNB reports.It is concrete and Speech, the in step 430 executable following operations of UE.First, UE calculates multiple instantaneous RSSI With the difference between corresponding RSRP.Next, UE by each in the difference with First predetermined threshold is compared.Subsequently, in response at least one of difference difference More than first predetermined threshold, UE reports at least one difference to service eNB.With it is upper The first method stated in the first scene is similar to, and first predetermined threshold can be pre- by service eNB First configure.In certain embodiments, first predetermined threshold is to connect from measurement control order The energy detection threshold of receipts.Using which, when the difference is less than first predetermined threshold When, UE will not report the difference to service eNB, so as to reduce feedback overhead.Additionally, It is similar with the first method in above-mentioned first scene, in order to further reduce feedback overhead, ring At least one of difference difference described in Ying Yu is more than first predetermined threshold, and UE can not be to Service eNB reports at least one difference, but only indicates to service eNB report interference.

In eNB sides, in step 440, eNB is measured instantaneous in the period based on taking RSSI is being hidden nodal test.ENB can take first with more than under the first scene First method identical operation in option, is hidden the operation of nodal test, thus Repeat no more.

Afterwards, in step 450, eNB notifies channel of operation to UE.Thus, UE can be with Conventional LTE communication is carried out in the channel of operation.

It should be appreciated that the flow process shown in Fig. 4 is only schematic rather than determinate, on State first method to take than the more or less of operation shown in Fig. 4

Fig. 5 is schematically shown the UE in the second scene and is measured using second method and reported Flow processs of the RSSI and eNB using RSSI.As shown in figure 5, in step 510, eNB By measurement control order being sent to UE configure UE to measure RSSI.

In step 520, in response to determining that the instruction for receiving channel occupation status and channel are accounted for Indicate that channel occupation status are idle condition with the instruction of state, UE is measured in measurement period Multiple instantaneous RSSI.

Next, in step 530, UE calculates the meansigma methodss of the plurality of instantaneous RSSI (i.e. Average RSSI).Additionally, in step 530, UE can also be by the plurality of instantaneous RSSI It is compared with the second predetermined threshold, and calculates instantaneous more than second predetermined threshold The number of RSSI with less than or equal to second predetermined threshold instantaneous RSSI number it Between ratio (i.e. dutycycle).Second predetermined threshold can be pre-configured with by service eNB. In certain embodiments, second predetermined threshold is the energy received from measurement control order Detection threshold value.Alternatively, second predetermined threshold can be any other appropriate value.

Subsequently, in step 540, UE reports average RSSI and dutycycle to eNB.Can be with Understand, the average RSSI and dutycycle can reflect can use for the channel selected for carrier wave Property.

In eNB sides, in step 550, eNB is based on the average RSSI in the unoccupied period Carrier wave selection is carried out with dutycycle.Afterwards, in step 560, eNB notifies to operate to UE Channel.Thus, UE can carry out conventional LTE communication in the channel of operation.

It should be appreciated that the flow process shown in Fig. 5 is only schematic rather than determinate, on State second method to take than the more or less of operation shown in Fig. 3.

Furthermore, it is to be understood that as, in the second method, UE is only accounted for eNB reports are non- With average RSSI and dutycycle in the period, thus limit and reduce feedback overhead.

In addition, in second scene, as eNB needs to indicate channel occupancy shape to UE State, and the measurement period of UE execution rssi measurements is also to be configured by eNB, therefore Not to UE transmission datas in the preferred measurement periods of eNB.

The third aspect in accordance with an embodiment of the present disclosure, there is provided a kind of for the survey in LAA The device of amount and report RSSI.Fig. 6 shows the third aspect in accordance with an embodiment of the present disclosure For in LAA measure and report RSSI device 600 block diagram.600, device Such as can implement in UE.

As shown in fig. 6, device 600 includes：Determining unit 610, is configured to determine whether The instruction of channel occupation status is received from base station；Measuring unit 620, is configured to based on institute State determination to measure RSSI；And reporting unit 630, it is configured to the base station repeats Measured RSSI.

In certain embodiments, measuring unit 620 is further configured to：In response to determining The instruction of the channel occupation status is not received by, measures multiple instantaneous in measurement period RSSI。

In certain embodiments, device 600 is further included：First detector unit, is matched somebody with somebody It is set in response to determining the instruction for being not received by the channel occupation status, from coming from Reference signal is detected in the subframe for stating base station；And wherein determining unit 610 is further matched somebody with somebody Be set to and the reference signal detected in response to first detector unit, determine the channel Seizure condition is busy state.

In certain embodiments, measuring unit 620 is further configured to：In response to determining The instruction of the instruction and the channel occupation status that receive the channel occupation status refers to The bright channel occupation status are busy state, and multiple instantaneous RSSI are measured in measurement period.

In certain embodiments, device 600 is further included：First computing unit, is matched somebody with somebody It is set between the plurality of instantaneous RSSI and corresponding Reference Signal Received Power RSRP of calculating Difference；And first comparing unit, it is configured to each in the difference and One predetermined threshold is compared；And wherein reporting unit 630 is further configured to response It is more than first predetermined threshold at least one of difference difference, to the base station At least one difference is reported, or is indicated to base station repeats interference.

In certain embodiments, device 600 is further included：First detector unit, is matched somebody with somebody It is set in response to determining the instruction for being not received by the channel occupation status, from coming from Reference signal is detected in the subframe for stating base station；And wherein reporting unit 630 is further matched somebody with somebody Be set to and the reference signal be not detected by response to first detector unit, to the base station Report the plurality of instantaneous RSSI.

In certain embodiments, measuring unit 620 is further configured to：From coming from The subcarrier mourned in silence is pre-configured with by the base station is detected in the subframe for stating base station；And ring Ying Yu detects the subcarrier mourned in silence, and on the subcarrier mourned in silence measures described many Individual instantaneous RSSI.

In certain embodiments, reporting unit 630 is further configured to：To the base station The time of measuring that report is associated with the instantaneous RSSI.

In certain embodiments, measuring unit 620 is further configured to：In response to determining The instruction of the instruction and the channel occupation status that receive the channel occupation status refers to The bright channel occupation status are idle condition, and multiple instantaneous RSSI are measured in measurement period； And calculate the meansigma methodss of the plurality of instantaneous RSSI.

In certain embodiments, reporting unit 630 is further configured to：To the base station Report the meansigma methodss of the plurality of instantaneous RSSI.

In certain embodiments, device 600 is further included：Second comparing unit, is matched somebody with somebody It is set to and the plurality of instantaneous RSSI is compared with the second predetermined threshold；And second calculate Unit, be configured to calculate more than second predetermined threshold instantaneous RSSI number with it is little In or number equal to the instantaneous RSSI of second predetermined threshold between ratio；And report Accuse unit 630 to be further configured to ratio described in the base station repeats.

Fourth aspect in accordance with an embodiment of the present disclosure, there is provided a kind of for making in LAA With the device of RSSI.Fig. 7 shows being used for for fourth aspect in accordance with an embodiment of the present disclosure The block diagram of the device 700 of the RSSI used in LAA.Device 700 for example can be in base station Middle enforcement.

As shown in fig. 7, device 700 includes：Receiving unit 710, is configured to from user set It is standby to receive RSSI, wherein the RSSI by the user equipment based on determining whether from base station Receive the instruction of channel occupation status and measure；And unit 720 is used, it is configured to The RSSI received used in mandate auxiliary access for the user equipment.

In certain embodiments, the RSSI by the user equipment based on a determination that not from institute State base station to receive the instruction of channel occupation status and measure.

In certain embodiments, receiving unit 710 is further configured to：Receive the use The instantaneous RSSI of at least one of multiple instantaneous RSSI that family equipment is measured in measurement period.

In certain embodiments, receiving unit 710 is further configured to：Receive with it is described At least one instantaneous RSSI associated time of measuring.

In certain embodiments, it is further configured to using unit 720：It is determined that described Channel occupation status described in time of measuring are busy state or idle condition.

In certain embodiments, it is further configured to using unit 720：In response to determining It is busy state in channel occupation status described in the time of measuring, it is determined that the RSSI for being received Number whether be more than zero.

In certain embodiments, it is further configured to using unit 720：In response to determining The number of the RSSI for being received is more than zero, is carried out for described based on the RSSI for being received The concealed nodes detection of user equipment.

In certain embodiments, it is further configured to using unit 720：In response to determining It is busy state in channel occupation status described in the time of measuring, it is determined whether from the UE Receive interference to indicate.

In certain embodiments, it is further configured to using unit 720：In response to determining Receive the interference to indicate, carried out for the user equipment based on the interference instruction Concealed nodes detection.

In certain embodiments, it is further configured to using unit 720：In response to determining Channel occupation status described in portion of time in the time of measuring be busy state and And channel occupation status described in another part time in the time of measuring are idle shapes State, selects the RSSI measured under the idle condition from the RSSI for being received；And Calculate the meansigma methodss of selected RSSI.

In certain embodiments, it is further configured to using unit 720：Will be selected RSSI is compared with the first predetermined threshold；And calculate more than first predetermined threshold Between the number of RSSI and the number less than or equal to the RSSI of first predetermined threshold Ratio.

In certain embodiments, it is further configured to using unit 720：Based on described flat At least one in average and the ratio, carries out selecting for the carrier wave of the user equipment.

In certain embodiments, it is further configured to using unit 720：In response to determining Channel occupation status described in portion of time in the time of measuring be busy state and And channel occupation status described in another part time in the time of measuring are idle shapes State, selects the RSSI measured under the busy state from the RSSI for being received；And Calculate each and corresponding Reference Signal Received Power RSRP in selected RSSI it Between difference.

In certain embodiments, it is further configured to using unit 720：Based on the difference Value, carries out detecting for the concealed nodes of the user equipment.

In certain embodiments, device 700 is further included：Sub-carrier configuration unit, quilt It is configured to configure the subcarrier mourned in silence in the subframe sent to the user equipment, so that The user equipment measures the plurality of instantaneous RSSI on the subcarrier mourned in silence.

In certain embodiments, the RSSI by the user equipment based on a determination that from the base Station receives the instruction of channel occupation status and measures.

In certain embodiments, the instruction of the channel occupation status indicates the channel occupancy State is busy state；And wherein receiving unit 710 is further configured to：Receive institute State at least one of multiple instantaneous RSSI that user equipment is measured in measurement period instantaneous RSSI。

In certain embodiments, it is further configured to using unit 720：Based on being received RSSI come carry out for the user equipment concealed nodes detect.

In certain embodiments, the instruction of the channel occupation status indicates the channel occupancy State is idle condition；And wherein receiving unit 710 is further configured to：Receive institute State the meansigma methodss of multiple instantaneous RSSI.

In certain embodiments, receiving unit 710 is further configured to：Receive more than the The number of the instantaneous RSSI of two predetermined thresholds with less than or equal to second predetermined threshold Ratio between the number of instantaneous RSSI.

In certain embodiments, it is further configured to using unit 720：Based on described flat At least one in average and the ratio, carries out selecting for the carrier wave of the user equipment.

In general, the various example embodiments of the disclosure can hardware or special circuit, Implement in software, logic, or its any combinations.Can implement within hardware in terms of some, And can be can be by controller, microprocessor or other computing devices in terms of other Implement in firmware or software.When each side of embodiment of the disclosure are illustrated or described as frame Figure, flow chart or when being represented using some other figures, it will be understood that square frame described herein, Device, system, techniques or methods can as nonrestrictive example hardware, software, Firmware, special circuit or logic, common hardware or controller or other computing devices, or its Implement in some combinations.

And, each frame in flow chart can be counted as method and step, and/or computer journey The operation that the operation of sequence code is generated, and/or be interpreted as multiple couplings of execution correlation function Logic circuit component.For example, embodiment of the disclosure includes computer program, the meter Calculation machine program product includes visibly realizing computer program on a machine-readable medium, is somebody's turn to do Computer program includes the program code for being configured to realize method is described above.

In the context of present disclosure, machine readable media can include or store to use In or be related to instruction execution system, device or equipment program any tangible medium.Machine Device computer-readable recording medium can be machine-readable signal medium or machinable medium.Machine can Read medium can include but is not limited to electronics, magnetic, it is optical, electromagnetism, infrared Or semiconductor system, device or equipment, or its any appropriate combination.Machine readable storage The more detailed example of medium includes the electrical connection with one or more wire, portable meter Calculation machine disk, hard disk, random access memory (RAM), read only memory (ROM), Erasable Programmable Read Only Memory EPROM (EPROM or flash memory), light storage device, magnetic storage Equipment, or its any appropriate combination.

For realizing that the computer program code of the method for present disclosure can be with one kind or many Plant programming language to write.These computer program codes can be supplied to general purpose computer, specially With computer or the processor of other programmable data processing meanss so that program code exists When execution by computer or other programmable data processing meanss, cause in flow chart And/or function/operation is carried out specified in block diagram.Program code can be completely in computer Upper, part is on computers and part on computers, as independent software kit, part Perform on remote computer or server on the remote computer or completely.

In addition, although operation is depicted with particular order, this simultaneously should not be construed requirement This generic operation is completed with the particular order that illustrates or with sequential order, or performs all diagrams Operation obtaining expected result.In some cases, multitask or parallel processing can be had Benefit.Similarly, although discussed above contain some specific implementation details, this is simultaneously Should not be construed as the scope for limiting any invention or claim, and should be interpreted that to can be with pin Description to the specific embodiment of specific invention.In the upper of separate embodiment in this specification Some features described in hereafter can also combined implementation in single embodiment.On the contrary, Various features described in the context of single embodiment can also discretely in multiple enforcements Example is implemented in any suitable sub-portfolio.

Various modifications for the example embodiment of the aforementioned disclosure, change will be together with accompanying drawing Obvious are become to those skilled in the technology concerned when checking described above.It is any and all Modification will still fall within unrestriced and disclosure example embodiment scope.Additionally, before state There is the benefit for inspiring in bright book and accompanying drawing, be related to the technical field of these embodiments of the disclosure Technical staff will be appreciated that the other embodiment of the disclosure for illustrating herein.

It will be understood that, embodiment of the disclosure is not limited to disclosed specific embodiment, and repaiies Change and other embodiment should be all contained in scope of the appended claims.Although being used herein as Specific term, but they are only used in the sense that general and description, and and without In restriction purpose.

Claims (36)

1. one kind is indicated for measurement and report received signal strength in authorizing auxiliary to access The method of RSSI, including：

Determine whether to receive the instruction of channel occupation status from base station；

RSSI is measured based on the determination；And

To the RSSI measured by the base station repeats.

2. method according to claim 1, wherein measuring RSSI based on the determination Including：

In response to determining the instruction for being not received by the channel occupation status, in measurement period It is interior to measure multiple instantaneous RSSI.

3. method according to claim 2, further includes：

In response to determining the instruction for being not received by the channel occupation status, from coming from Reference signal is detected in the subframe for stating base station；And

In response to detecting the reference signal, determine that the channel occupation status are busy shape State.

4. method according to claim 1, wherein measuring RSSI based on the determination Including：

In response to determining that the instruction for receiving the channel occupation status and the channel are accounted for Indicate that the channel occupation status are busy state with the instruction of state, survey in measurement period Measure multiple instantaneous RSSI.

5. the method according to claim 3 or 4, wherein being surveyed to the base station repeats The RSSI of amount includes：

Calculate between the plurality of instantaneous RSSI and corresponding Reference Signal Received Power RSRP Difference；

Each in the difference is compared with the first predetermined threshold；And

It is more than first predetermined threshold in response at least one of difference difference, to At least one difference described in the base station repeats, or indicate to base station repeats interference.

6. method according to claim 2, further includes：

In response to determining the instruction for being not received by the channel occupation status, from coming from Reference signal is detected in the subframe for stating base station；And

It is in response to being not detected by the reference signal, the plurality of instantaneous to the base station repeats RSSI。

7. method according to claim 2, wherein being not received by institute in response to determining The instruction of channel occupation status is stated, multiple instantaneous RSSI are measured in measurement period to be included：

That detects from the subframe for coming from the base station that the base station is pre-configured with mourns in silence Subcarrier；And

In response to detecting the subcarrier mourned in silence, measure on the subcarrier mourned in silence The plurality of instantaneous RSSI.

8. the method according to any one of claim 2 to 7, wherein to the base station The measured RSSI of report is further included：

To the time of measuring that the base station repeats are associated with the instantaneous RSSI.

9. method according to claim 1, wherein measuring RSSI based on the determination Including：

In response to determining that the instruction for receiving the channel occupation status and the channel are accounted for Indicate that the channel occupation status are idle condition with the instruction of state, survey in measurement period Measure multiple instantaneous RSSI；And

Calculate the meansigma methodss of the plurality of instantaneous RSSI.

10. method according to claim 9, wherein to measured by the base station repeats RSSI includes：

To the meansigma methodss of the plurality of instantaneous RSSI of the base station repeats.

11. methods according to claim 10, further include：

The plurality of instantaneous RSSI is compared with the second predetermined threshold；

Calculate the number of the instantaneous RSSI more than second predetermined threshold and be less than or equal to institute Ratio between the number of the instantaneous RSSI for stating the second predetermined threshold；And

To ratio described in the base station repeats.

12. is a kind of for the received signal strength indicator RSSI used in authorizing auxiliary to access Method, including：

RSSI is received from user equipment in base station, wherein the RSSI is set by the user For based on determining whether receiving the instruction of channel occupation status from the base station and measuring；With And

The RSSI received used in the mandate auxiliary for the user equipment is accessed.

13. methods according to claim 12, wherein the RSSI is set by the user For based on a determination that not receiving the instruction of channel occupation status from the base station and measuring.

14. methods according to claim 13, wherein receiving RSSI from user equipment Including：

Receive in the multiple instantaneous RSSI that the user equipment is measured in measurement period at least One instantaneous RSSI.

15. methods according to claim 14, wherein receiving RSSI from user equipment Further include：

Receive the time of measuring that RSSI instantaneous with described at least one is associated.

16. methods according to claim 15, further include：

It is determined that being busy state or idle shape in channel occupation status described in the time of measuring State.

17. methods according to claim 16, further include：

It is busy state in response to determining in channel occupation status described in the time of measuring, really Whether the number of fixed received RSSI is more than zero.

18. methods according to claim 17, wherein for the user equipment Used in authorizing auxiliary to access, the RSSI includes：

In response to determining that the number of received RSSI is more than zero, based on the RSSI for being received Concealed nodes to carry out for the user equipment are detected.

19. methods according to claim 16, further include：

It is busy state in response to determining in channel occupation status described in the time of measuring, really It is fixed whether to receive interference instruction from the UE.

20. methods according to claim 19, wherein for the user equipment Used in authorizing auxiliary to access, the RSSI includes：

In response to determining that receiving the interference indicates, enters the hand-manipulating of needle based on the interference instruction The concealed nodes of the user equipment are detected.

21. methods according to claim 18, further include：

In response to determining channel occupation status described in the portion of time in the time of measuring It is busy state and channel occupancy described in another part time in the time of measuring State is idle condition, selects what is measured under the idle condition from the RSSI for being received RSSI；And

Calculate the meansigma methodss of selected RSSI.

22. methods according to claim 21, further include：

Selected RSSI is compared with the first predetermined threshold；And

Calculate the number of RSSI more than first predetermined threshold with less than or equal to described the Ratio between the number of the RSSI of one predetermined threshold.

23. methods according to claim 22, wherein for the user equipment Used in authorizing auxiliary to access, the RSSI includes：

Based at least one in the meansigma methodss and the ratio, carry out for the user The carrier wave of equipment is selected.

24. methods according to claim 18, further include：

In response to determining channel occupation status described in the portion of time in the time of measuring It is busy state and channel occupancy described in another part time in the time of measuring State is idle condition, selects what is measured under the busy state from the RSSI for being received RSSI；And

Calculate each in selected RSSI and corresponding Reference Signal Received Power Difference between RSRP.

25. methods according to claim 24, wherein for the user equipment Used in authorizing auxiliary to access, the RSSI includes：

Based on the difference, carry out detecting for the concealed nodes of the user equipment.

26. methods according to claim 16, further include：

The subcarrier mourned in silence is configured in the subframe sent to the user equipment, so that institute State user equipment and the plurality of instantaneous RSSI is measured on the subcarrier mourned in silence.

27. methods according to claim 14, wherein the RSSI is set by the user For based on a determination that receiving the instruction of channel occupation status from the base station and measuring.

28. methods according to claim 27, wherein the finger of the channel occupation status Show and indicate that the channel occupation status are busy state；And

Wherein receiving RSSI from the user equipment includes：

Receive in the multiple instantaneous RSSI that the user equipment is measured in measurement period At least one instantaneous RSSI.

29. methods according to claim 28, wherein for the user equipment Used in authorizing auxiliary to access, the RSSI includes：

Carry out detecting for the concealed nodes of the user equipment based on the RSSI for being received.

30. methods according to claim 27, wherein the finger of the channel occupation status Show and indicate that the channel occupation status are idle condition；And

Wherein receiving RSSI from the user equipment includes：

Receive the meansigma methodss of the plurality of instantaneous RSSI.

31. methods according to claim 30, wherein receiving RSSI from user equipment Further include：

Receive the number of instantaneous RSSI more than the second predetermined threshold with less than or equal to described the Ratio between the number of the instantaneous RSSI of two predetermined thresholds.

32. methods according to claim 31, wherein for the user equipment Used in authorizing auxiliary to access, the RSSI includes：

Based at least one in the meansigma methodss and the ratio, carry out for the user The carrier wave of equipment is selected.

33. methods according to claim 18, further include：

In response to determining that the number of received RSSI is more than zero, received RSSI is calculated Number and the number of predetermined sampled point between ratio；And

Determine the ratio whether more than the 3rd predetermined threshold.

34. methods according to claim 33, wherein for the user equipment Used in authorizing auxiliary to access, the RSSI includes：

In response to determining that the ratio is more than the 3rd predetermined threshold, based on what is received RSSI is detected come the concealed nodes carried out for the user equipment.

35. one kind are indicated for measurement and report received signal strength in authorizing auxiliary to access The device of RSSI, including：

Determining unit, is configured to determine whether to receive the finger of channel occupation status from base station Show；

Measuring unit, is configured to based on the determination measure RSSI；And

Reporting unit, is configured to the RSSI measured by the base station repeats.

36. is a kind of for the received signal strength indicator RSSI used in authorizing auxiliary to access Device, including：

Receiving unit, is configured to receive RSSI from user equipment in base station, wherein described RSSI is by the user equipment based on determining whether receiving channel occupation status from the base station Instruction and measure；And

Using unit, it is configured to make in the mandate auxiliary for the user equipment is accessed With the RSSI for being received.