CN102378192A - Co-existing interference avoiding method and device - Google Patents
Co-existing interference avoiding method and device Download PDFInfo
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- CN102378192A CN102378192A CN2010102589046A CN201010258904A CN102378192A CN 102378192 A CN102378192 A CN 102378192A CN 2010102589046 A CN2010102589046 A CN 2010102589046A CN 201010258904 A CN201010258904 A CN 201010258904A CN 102378192 A CN102378192 A CN 102378192A
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Abstract
The invention relates to a co-existing interference avoiding method and a device, which are used for solving the technical problem that the co-existing interference happens in user equipment (UE) on which multiple wireless technologies coexist. When co-existing interference is detected on the UE, a base station is allowed to know the co-existing interference at the UE side by transmitting a co-existing interference indication or switching a request message, so the UE is switched to a pilot-frequency neighboring region; or the base station ensures that the UE is selectively switched to the pilot-frequency neighboring region according to a reported measurement report by modifying a measuring configuration parameter; or the UE is directly re-connected to the pilot-frequency neighboring region satisfying the access condition through the pilot-frequency measurement. Due to the adoption of the method and the device, the UE is reselected to the pilot-frequency neighboring region so as to avoid the co-existing interference.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to interference avoidance method and device when existing coexistence to disturb between a kind of system.
Background technology
Because intelligent subscriber terminal (User Equipment; UE) appearance in an equipment, has multiple radio coexistence; Like (the Wireless Local Area Networks of WLAN in an equipment; Or LTE coexists with Bl tooth (bluetooth) WLAN) and LTE (Long Term Evolution, Long Term Evolution) coexistence (as shown in Figure 1).And every kind of wireless technology all has the frequency range of its use; As shown in Figure 2: ISM (the Industrial Science Medical that WLAN and Bluetooth use; The industrial technology medical treatment) frequency range is between 2420M～2483.5M, and the frequency range around this frequency range is distributed to the LTE use.Like 2300M～2400M is to distribute to LTE band 40 to use, and 2500M～2570M distributes to the up use of LTE band7.
Two kinds of wireless technologys are used adjacent frequency range in an equipment, because the reason of band external leakage causes mutual interference very strong, and this interference again can't be through the filter elimination, and we claim that this interference is " coexistence is disturbed ".Fig. 1 is the sketch map of a this user terminal, is example with WLAN in the equipment and LTE coexistence among the figure, carry out the LTE protocol processes base band, radio frequency and antenna part we be referred to as the LTE unit; Carry out the WLAN protocol processes base band, radio frequency and antenna part we be referred to as the WLAN unit.The mode that can detect through the mode or the measurement of notice knows whether " coexistence is disturbed " exists.See from the LTE angle, when WLAN unit radio frequency transmissions, notice LTE unit, WLAN unit, the LTE unit just knows that WLAN can produce " coexistence is disturbed " to LTE so.Perhaps when WLAN unit radio frequency transmissions, the LTE unit can detect through certain mode, and the LTE unit can know that also WLAN can produce " coexistence is disturbed " to LTE like this.
The frequency range that the LTE unit of user terminal uses is near more from ISM band, and the coexistence between the ISM is disturbed big more.Such as; When user terminal uses WLAN and LTE simultaneously; If LTE is employed is the frequency range between 2300M～2320M; " coexistence is disturbed " then and between the WLAN is very little, and if LTE employed be frequency range between 2380M～2400M, then and " coexistence is disturbed " between the WLAN can be more intense.Therefore, when " coexistence is disturbed " is more intense, let the LTE unit use " coexistence is disturbed " little frequency range through switching or other modes, promptly UE selects the little Serving cell of interference, to avoid " coexistence is disturbed ".
Because user terminal LTE unit is in connection status; Because beginning emission, the startup of WLAN or radio frequency cause interference; And the measurement that the LTE unit disposes at this moment possibly be based on signal strength signal intensity, rather than based on the measurement of disturbing, even and disposed based on the measurement of disturbing; But the measurement of a general configuration all require to satisfy trigger conditions after the regular hour just to the base station reported event; And, cause the decline of QoS of customer during this period of time because WLAN has very strong interference to LTE, therefore be necessary this mechanism is optimized.
The user terminal that not only is in connection status can receive the influence that coexistence is disturbed, and is in the user terminal of idle condition because want paging receiving, and system message and initiation insert at random, the influence that also can be coexisted and disturb.So, when UE exists coexistence to disturb in the frequency range of idle condition institute persistent district, so also need avoiding that corresponding strategy coexists and disturb.
In addition, the coexistence in the equipment of describing except the front is disturbed, for two equipment rooms, when two equipment leave very near, if its use is successive bands, also has coexistence and disturbing.
Owing in LTE, do not consider this " coexistence is disturbed " at present, for LTE, when end side had " coexistence is disturbed ", user terminal was only found to disturb very serious based on existing measurement.Generally under this scene, disturb relevant measurement, then can pass through the measurement report informing base station if user terminal has disposed.But this depends on user terminal and whether has disposed the relevant measurement of interference; Even and disposed measurement; In the existing mechanism; Measurement there are many restrictions, will pass through layer 3 and filter and judge and in certain lag time, whether satisfy just reporting measurement reports of measurement triggering condition as measuring, so this all can bring very big influence to performance.
Summary of the invention
In view of this, main purpose of the present invention is to provide coexistence interference avoidance method and device, is used to solve " coexistence is disturbed " problem of user terminal.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of coexistence interference avoidance method comprises:
Under connection status, when the coexistence interference appears in subscriber terminal side, make said user terminal switch to or reconnect and receive the alien frequencies adjacent area;
Under idle condition, when the coexistence interference appears in subscriber terminal side, make said user terminal gravity treatment to alien frequencies adjacent area or different system adjacent area.
Further, the method that makes said user terminal switch to the alien frequencies adjacent area is:
When said user terminal detects the coexistence interference, send the coexistence interference indication message to the base station;
After the base station receives said coexistence interference indication message, make said user terminal switch to the alien frequencies adjacent area.
Further, under the situation of alien frequencies with coverage cell, after the base station received said coexistence interference indication message, the method that makes said user terminal switch to the alien frequencies adjacent area was:
The base station is sent Radio Resource control (RRC) to said user terminal and is connected reconfiguration message; After said user terminal receives that said RRC connects reconfiguration message; Carry out the reconfiguration process process, switch to the alien frequencies adjacent area, and send the RRC connection to the base station and reshuffle completion message.
Further, constitute at different base station under the situation of alien frequencies adjacent area, after the base station received said coexistence interference indication message, the method that makes said user terminal switch to the alien frequencies adjacent area was:
Serving BS is initiated RRC and is connected reconfiguration course, and said user terminal is measured the alien frequencies adjacent area;
Said user terminal is to the measurement report of serving base stations report to the alien frequencies adjacent area;
After serving BS receives the measurement report of said user terminal, initiate handoff procedure, make said user terminal switch to the alien frequencies adjacent area to the alien frequencies adjacent area.
Further, the method that makes said user terminal switch to the alien frequencies adjacent area is:
When said user terminal detects the coexistence interference, carry out different-frequency measure and/or different system measurements, the search received signal quality satisfies alien frequencies adjacent area and the different system adjacent area that access requires;
When said user terminal searches the Target cell that satisfies access conditions, send coexistence disturbance switching request message to the base station, carry the identification information of the Target cell that satisfies access conditions in this message;
The base station initiates to connect reconfiguration course according to the identification information of the Target cell that satisfies access conditions that carries in the said coexistence disturbance switching request message, makes said user terminal switch to the Target cell that satisfies access conditions.
Further, the method that makes said user terminal switch to the alien frequencies adjacent area is:
When said user terminal detects coexistence and disturbs, revise in the configuration parameter of following measurement event one or multinomial: TTT is configured to less than physical layer measuring period or less than 200ms; No matter whether the signal quality of Serving cell surpasses S threshold values (S-measure), all carries out different-frequency measure; The terminal is when carrying out the measurement event assessment, and the employed frequency of Serving cell deducts the frequency shift (FS) that causes because of the coexistence interference;
When said user terminal detects the alien-frequency district that satisfies said measurement event report condition, send measurement report to the base station;
The base station according to the measurement report of said user terminal to send up after judgement satisfy the alien frequencies adjacent area that said user terminal switches access conditions, initiate RRC and connect reconfiguration course.
Further, the method that makes said user terminal switch to or reconnect to receive the alien frequencies adjacent area is:
When said user terminal detects the coexistence interference, carry out different-frequency measure and/or different system measurements, the search received signal quality satisfies alien frequencies adjacent area and the different system adjacent area that access requires;
When said user terminal searches the Target cell that satisfies access conditions, initiate to the said RRC connection reconstruction process that satisfies the Target cell of access conditions to the base station, said user terminal is rebuild be connected to the said Target cell that satisfies access conditions.
Further, said user terminal initiates before the RRC connection reconstruction process of the said Target cell that satisfies access conditions, also to comprise step to the base station:
Said user terminal sends coexistence disturbance switching request message to the base station, carries the identification information of the Target cell that satisfies access conditions in this message, and starts timer wait base station to the Target cell initiation handoff procedure that satisfies access conditions;
If before said timer expiry; Said user terminal receives the RRC that sends the base station and connects reconfiguration message; Then reconfiguration course is initiated to connect according to the identification information of the Target cell that satisfies access conditions that carries in the said coexistence disturbance switching request message in the base station;
If said timer expiry, said user terminal are not received the RRC that sends the base station yet and are connected reconfiguration message, then initiate to the said RRC connection reconstruction process that satisfies the Target cell of access conditions to the base station.
Further, make said user terminal gravity treatment be to the method for the adjacent area of alien frequencies adjacent area or different system:
Under idle condition, when said user terminal detected the coexistence interference, the frequency priority of current service cell was set to be lower than the frequency priority of alien frequencies adjacent area;
Said user terminal is measured the alien frequencies adjacent area that other has high-frequency priority, lays equal stress on and chooses the alien frequencies adjacent area of satisfying reselection conditions;
Behind the alien frequencies adjacent area, the frequency priority of source Serving cell is set to be lower than the frequency priority of current service cell in said user terminal gravity treatment;
When said subscriber equipment detects coexistence interference disappearance, recover the frequency priority of source Serving cell according to system message.
Based on the method for the invention, the present invention also proposes a kind of coexistence interference and avoids device, comprising:
Whether detection module is used for detecting having produced to coexist and disturbs;
Executive Module is used for detecting coexistence when disturbing, make user terminal switch, reconnect or gravity treatment to the alien frequencies adjacent area.
Further, based on the preferred embodiment of the present invention, said Executive Module comprises:
The indication sending module is disturbed in coexistence, is used for when detecting the coexistence interference, sending the coexistence interference indication message to the base station;
First handover module is used for after receiving the coexistence interference indication message through initiating to switch reconfiguration course or reshuffle measuring process to make user terminal switch the alien frequencies adjacent area.
Further, based on the preferred embodiment of the present invention, said Executive Module comprises:
First measurement module is used for when detecting the coexistence interference, carrying out different-frequency measure and/or different system measurements, and the search received signal quality satisfies alien frequencies adjacent area and the different system adjacent area that access requires;
Coexistence disturbance switching request module when being used to search the Target cell that satisfies access conditions, is sent coexistence disturbance switching request message to the base station, carries the identification information of the Target cell that satisfies access conditions in this message;
Second handover module, the identification information of the Target cell that satisfies access conditions that is used for carrying according to said coexistence disturbance switching request message initiates to connect reconfiguration course, makes said user terminal switch to the Target cell that satisfies access conditions.
Further, based on the preferred embodiment of the present invention, said Executive Module comprises:
Measurement configuration parameter modification module is used for when detecting coexistence and disturb, and revises in the configuration parameter of following measurement event one or multinomial: TTT is configured to less than physical layer measuring period or less than 200ms; No matter whether the signal quality of Serving cell surpasses S threshold values (S-measure), all carries out different-frequency measure; The terminal is when carrying out the measurement event assessment, and the employed frequency of Serving cell deducts the frequency shift (FS) that causes because of the coexistence interference;
The measurement and report module is used for detecting when satisfying the alien-frequency district of said measurement event report condition according to amended configuration parameter, sends measurement report to the base station;
The 3rd handover module is used for satisfying the alien frequencies adjacent area of switching access conditions according to the measurement report judgement that reports, and initiates RRC and connects reconfiguration course.
Further, based on the preferred embodiment of the present invention, said Executive Module comprises:
Second measurement module is used for when detecting the coexistence interference, carrying out different-frequency measure and/or different system measurements, and the search received signal quality satisfies alien frequencies adjacent area and the different system adjacent area that access requires;
The first connection reconstruction module is used for when searching the Target cell that satisfies access conditions, carries out to the said RRC connection reconstruction process that satisfies the Target cell of access conditions.
Further, based on the preferred embodiment of the present invention, said Executive Module also comprises:
The 3rd measurement module is used for when detecting the coexistence interference, carrying out different-frequency measure and/or different system measurements, and the search received signal quality satisfies alien frequencies adjacent area and the different system adjacent area that access requires;
Coexistence disturbance switching request module when being used to search the Target cell that satisfies access conditions, is sent coexistence disturbance switching request message to the base station, carries the identification information of the Target cell that satisfies access conditions in this message; And start timer wait base station to the Target cell initiation handoff procedure that satisfies access conditions;
The Timing Processing module has been used to judge whether before said timer expiry, to receive that the RRC that send the base station connects reconfiguration message;
The 4th handover module is used for before said timer expiry, receives when the RRC that sends the base station connects reconfiguration message, according to the identification information of the Target cell that satisfies access conditions that carries in the said coexistence disturbance switching request message, carries out the connection reconfiguration course;
The second connection reconstruction module is used at timer expiry, does not receive when the RRC that sends the base station connects reconfiguration message, carries out to the said Target cell RRC connection reconstruction process that satisfies access conditions.
Further, based on the preferred embodiment of the present invention, said Executive Module also comprises:
First priority is provided with module, is used under idle condition, and when detecting the coexistence interference, the frequency priority of current service cell is set to be lower than the frequency priority of alien frequencies adjacent area;
Measure handover module, the alien frequencies adjacent area that is used for other is had high-frequency priority is measured, and lays equal stress on and chooses the alien frequencies adjacent area of satisfying reselection conditions;
Second priority is provided with module, is used in gravity treatment behind the alien frequencies adjacent area, and the frequency priority of source Serving cell is set to be lower than the frequency priority of current service cell;
Priority is recovered module, is used for when detecting coexistence interference disappearance, recovering the frequency priority of source Serving cell according to system message.
The coexistence of the present invention on user terminal disturbed when occurring, make user terminal switch, reconnect receive or gravity treatment to the alien frequencies adjacent area, thereby avoided coexistence to disturb.
Description of drawings
WLAN and LTE coexistence sketch map in Fig. 1 equipment;
Fig. 2 frequency allocation sketch map;
Fig. 3 is with the coverage cell sketch map;
Fig. 4 embodiment of the invention 1 process chart;
Fig. 5 different base station neighbor cell covers sketch map;
Fig. 6 embodiment of the invention 2 handling process sketch mapes;
Fig. 7 covers sketch map with the base station neighbor cell;
Fig. 8 embodiment of the invention 3 handling process sketch mapes;
Fig. 9 embodiment of the invention 4 handling process sketch mapes;
Figure 10 embodiment of the invention 5 handling process sketch mapes;
Figure 11 embodiment of the invention 6 handling process sketch mapes;
Figure 12 embodiment of the invention 7 handling process sketch mapes;
Figure 13 embodiment of the invention 8 handling process sketch mapes.
Embodiment
Basic thought of the present invention is: when user terminal detects the coexistence interference, disturb indication or handoff request message to let the base station know that subscriber terminal side has the interference of coexistence through the transmission coexistence, thereby make user terminal switch to the alien frequencies adjacent area; Or through revising the measurement configuration parameter, the base station makes UE select to switch to the alien frequencies adjacent area according to the measurement report that reports; Or user terminal directly reconnects and receives the alien frequencies adjacent area of satisfying access conditions through different-frequency measure.Can make user terminal try one's best gravity treatment through the present invention, thereby avoid coexistence to disturb as far as possible to the alien frequencies adjacent area.
For making the object of the invention, technical scheme and advantage clearer, below lift embodiment and with reference to accompanying drawing, to further explain of the present invention.
WLAN and LTE coexistence in the user terminal, what LTE Cell1 used is 2380M～2400M frequency range, what LTE Cell2 used is 2300M～2320M frequency range.Two sub-districts are with covering, and are as shown in Figure 3.The current Serving cell of UE is Cell1, is in Radio Resource control (RRC) connection status.When the WLAN of UE emission, the LTE unit of UE can produce very strong interference to the reception of LTE unit when receiving; Perhaps when the emission of LTE unit, the WLAN unit can cause very strong interference to the reception of WLAN unit when receiving.Disturb for fear of the coexistence between WLAN and the LTE,, when detecting the in running order or WLAN of WLAN, adopt following steps to avoid the coexistence between end side WLAN and the LTE to disturb in emission for the LTE side, as shown in Figure 4, be specially:
Step 401:UE detect WLAN at work or WLAN in emission, judge that having coexistence between frequency and the WLAN of the current use of UE disturbs and disturb more intense, sends " indication is disturbed in coexistence " status report to the base station;
Step 402: the base station has one with the alien-frequency district Cell2 that covers according to the current Serving cell of UE after receiving " indication is disturbed in coexistence " status report of UE, send RRC to UE and connect reconfiguration message, and UE is switched on the Cell2, promptly carries out blind switching;
Step 403:UE receives that RRC connects reconfiguration message, carries out the reconfiguration process process, switches on the Cell2, sends the RRC connection to the base station and reshuffles completion message;
After UE switches to Cell2 success because the frequency that UE uses is 2300M～2320M, so and the coexistence interference between the WLAN can compare lessly, so just avoided the coexistence interference in the UE equipment as much as possible.
Present embodiment is taked the method for blind switching, and promptly base station judges has with covering or the big adjacent area of coverage, directly UE is switched to this sub-district to avoid interference.
Bluetooth and LTE coexistence in the user terminal, what LTE Cell1 used is 2380M～2400M frequency range, and what LTECell2 used is 2300M～2320M frequency range, and two sub-districts are neighbor cells, and are as shown in Figure 5, and Cell1 is the sub-district of base station 1, Cell2 is the sub-district of base station 2.The current Serving cell of UE is Cell1, is in the RRC connection status.When the Bluetooth transmission of UE, the LTE unit of UE can produce very strong interference to the reception of LTE unit when receiving; Perhaps when the emission of LTE unit, bluetooth unit can cause very strong interference to the reception of bluetooth unit when receiving.Disturb for fear of the coexistence between bluetooth and the LTE,, when detecting the in running order or bluetooth of bluetooth, adopt following steps to avoid the coexistence between end side bluetooth and the LTE to disturb in emission for the LTE side, as shown in Figure 6, be specially:
Step 601:UE detect bluetooth in work or bluetooth in emission, judge that having coexistence between frequency and the bluetooth of current use disturbs, and sends " indication is disturbed in coexistence " status report to base station 1;
Step 602: base station 1 is judged not with covering alien-frequency district after receiving " indication is disturbed in coexistence " status report of UE, is connected reconfiguration message so send RRC to UE; Reshuffle the measurement of UE, in this measurement control message, the allocating and measuring incident is A3; The measurement triggering time, (Time to Trigger was less than physical layer measuring period or less than 200ms TTT), and measuring amount is RSRQ (Reference Signal ReceiveQuality; Reference Signal Received Quality), to the less frequency shift (FS) of frequency configuration at the frequency of Serving cell place, like 0dB; And other frequencies are used bigger frequency shift (FS), and like 20dB, allocating and measuring S threshold values (S-measure) not; After UE finds suitable alien frequencies adjacent area, can more early switch to the alien frequencies adjacent area like this.Said measurement event A3 is defined as in agreement: when the adjacent area quality adds skew when high than Serving cell quality, to the base station reporting measurement reports, can trigger switching when the base station is received to the measurement report of this A3 measurement event.Whether said S threshold values is used to control UE measures the adjacent area, and UE just begins the adjacent area is measured when the signal quality of Serving cell is lower than this S threshold values.
Step 603:UE receives that RRC connects reconfiguration message, reshuffles measurement, starts the measurement to the adjacent area, connects to base station 1 response RRC and reshuffles completion message;
Step 604:UE detects Cell2 and satisfies A3 measurement event report condition, sends measurement report to base station 1;
Step 605: base station 1 is after receiving the measurement report of UE, and base station 1 judges that Cell2 satisfies UE and switches access conditions, sends handoff request to base station 2, and request switches to Cell2 with UE;
Step 606: acceptance judging is carried out to UE after receiving the handoff request message of base station 1 in base station 2 on Cell2, and distributing radio resource, replys handoff request acknowledgment message to base station 1;
Step 607: base station 1 is sent RRC to UE and is connected reconfiguration message after corresponding message is reshuffled in the switching of receiving base station 2, and UE is switched to Cell2;
Step 608:UE receives that RRC connects reconfiguration message, carries out the reconfiguration process process, on Cell2, inserts at random, switches on the Cell2, sends the RRC connection to base station 2 and reshuffles completion message;
After UE switches to Cell2 success because the frequency that UE uses is 2300M～2320M, so and the coexistence interference between the bluetooth can compare lessly, so just avoided the coexistence interference in the UE equipment as much as possible.
The difference of present embodiment and embodiment 1 is after the base station finds that coexistence is disturbed, to reshuffle measurement to UE, and the base station will be according to the measurement result select target sub-district of UE.
Embodiment 3
Bluetooth and LTE coexistence in the user terminal, the up use that LTE Cell1 uses be 2500M～2520M frequency range, the up use of LTE Cell2 be 1920M～1940M frequency range.Two sub-districts are neighbor cells, and are as shown in Figure 7.The current Serving cell of UE is Cell1, is in the RRC connection status.When the Bluetooth transmission of UE, the LTE unit of UE can produce very strong interference to the reception of LTE unit when receiving; Perhaps when the emission of LTE unit, bluetooth unit can cause very strong interference to the reception of bluetooth unit when receiving.Disturb for fear of the coexistence between bluetooth and the LTE,, when detecting the in running order or bluetooth of bluetooth, adopt following steps to avoid the coexistence between end side bluetooth and the LTE to disturb in emission for the LTE side, as shown in Figure 8, be specially:
Step 801:UE detects bluetooth and is launching in work or bluetooth; Having coexistence between the frequency of the current use of judgement UE and the bluetooth disturbs; UE carries out different-frequency measure and/or system's measurements, and the search received signal quality satisfies alien frequencies adjacent area and the different system adjacent area of inserting requirement;
If UE carries out different-frequency measure and system's measurements need be measured (measurement gap) at interval; And UE does not have allocating and measuring (measurement gap) at interval; UE can take to measure automatically and carry out different-frequency measure and/or system's measurements at interval so; How concrete UE measures the problem of implementation that belongs to UE, does not do here and gives unnecessary details.
Step 802:UE searches alien frequencies adjacent area Cell2 signal quality measuredly satisfies the cell selecting criterion; Promptly satisfy the access conditions of UE; To the base station report " coexistence disturbance switching request information is carried the identification information of the Target cell Cell2 that satisfies access conditions in the message;
Also can take the district reselecting criterion here, when carrying out the judgement of district reselecting criterion, the frequency priority of setting Cell2 is higher than the frequency priority of Cell1.
Step 803: the base station receive that UE reports " coexistence disturbance switching request information; according to the identification information of the Target cell that satisfies access conditions that carries in the message; judging whether Cell2 satisfies switches access conditions, if satisfy, then sends RRC connection reconfiguration message to UE;
Step 804:UE receives that RRC connects reconfiguration message, carries out the reconfiguration process process, switches on the Cell2, sends the RRC connection to the base station and reshuffles completion message;
After UE switches to Cell2 success because the frequency of the up use of UE is 1920M～1940M, so and the coexistence between the bluetooth disturb can be smaller, so just avoided the coexistence interference in the UE as much as possible.
Embodiment 4
WLAN and LTE coexistence in the user terminal, the up use that LTE Cell1 uses be 2500M～2520M frequency range, the up use of LTE Cell2 be 1920M～1940M frequency range.Two sub-districts are neighbor cells, and are as shown in Figure 7.The current Serving cell of UE is Cell1, is in the RRC connection status, and UE has disposed the A3 measurement event (definition of A3 measurement event is referring to embodiment 2) of RSRQ (Reference Signal Receive Quality, Reference Signal Received Quality).When the WLAN of UE emission, the LTE unit of UE can produce very strong interference to the reception of LTE unit when receiving; Perhaps when the emission of LTE unit, the WLAN unit can cause very strong interference to the reception of WLAN unit when receiving.Disturb for fear of the coexistence between WLAN and the LTE,, when detecting the in running order or WLAN of WLAN, adopt following steps to avoid the coexistence between end side WLAN and the LTE to disturb in emission for the LTE side, as shown in Figure 9, may further comprise the steps:
Step 901:UE detects WLAN and is launching in work or WLAN; Having coexistence between the frequency of the current use of judgement UE and the WLAN disturbs; Suppose that UE disposes the A3 incident, UE is revised as the parameter of A3 configuration automatically so: TTT is configured to less than physical layer measuring period or less than 200ms, even can be 0; And no matter whether the signal quality of Serving cell surpasses S-measure, all carries out different-frequency measure;
Step 902:UE measures the adjacent area, detects Cell2 and satisfies A3 measurement event report condition, sends measurement report to the base station;
Step 903: the base station is after receiving the measurement report of UE, and base station judges Cell2 satisfies UE and switches access conditions, sends RRC to UE and connects reconfiguration message, and UE is switched to Cell2;
Step 904:UE receives that RRC connects reconfiguration message, carries out the reconfiguration process process, switches on the Cell2, sends the RRC connection to the base station and reshuffles completion message;
After UE switches to Cell2 success because the frequency of up use is 1920M～1940M, so and the coexistence interference between the WLAN can compare lessly, so just avoided the coexistence interference in the UE equipment.
Embodiment 5
WLAN and LTE coexistence in the user terminal, the up use that LTE Cell1 uses be 2500M～2520M frequency range, the up use of LTE Cell2 be 1920M～1940M frequency range.Two sub-districts are neighbor cells, and are as shown in Figure 7.The current Serving cell of UE is Cell1; Be in the RRC connection status; UE has only disposed the A3 measurement event (definition of A3 measurement event is referring to embodiment 2) of RSRP (Reference Signal Receive Power, Reference Signal Received Power), the measurement of not disposing RSRQ.When the WLAN of UE emission, the LTE unit of UE can produce very strong interference to the reception of LTE unit when receiving; Perhaps when the emission of LTE unit, the WLAN unit can cause very strong interference to the reception of WLAN unit when receiving.Disturb for fear of the coexistence between WLAN and the LTE,, when detecting the in running order or WLAN of WLAN, adopt following method to avoid the coexistence between end side WLAN and the LTE to disturb in emission for the LTE side, shown in figure 10, may further comprise the steps:
Step 1001:UE detects WLAN and is launching in work or WLAN; Judge that having coexistence between frequency and the WLAN of the current use of UE disturbs, then revise in the configuration parameter of following measurement event one or multinomial: TTT is configured to less than physical layer measuring period or less than 200ms; No matter whether the signal quality of Serving cell surpasses S threshold values (S-measure), all carries out different-frequency measure; When carrying out the measurement event assessment, the employed frequency of Serving cell deducts the frequency shift (FS) that causes because of the coexistence interference;
Suppose that UE disposes the A3 measurement event; UE is revised as the parameter of A3 configuration automatically so: TTT is configured to 0; In the calculating inequality of A3 measurement event, the employed frequency of Serving cell will deduct because of coexistence and disturb the frequency shift (FS) that causes, is 30dB like this frequency offseting value; And no matter whether the signal quality of Serving cell surpasses S-measure, all carries out different-frequency measure;
A3 measurement event in the existing protocol comprises entry condition and leaves two kinds of measuring conditions of condition, the concrete definition as follows:
Inequality A3-1 (entry condition)
Mn+Ofn+Ocn-Hys＞Ms+Ofs+Ocs+Off
Inequality A3-2 (leaving condition)
Mn+Ofn+Ocn+Hys＜Ms+Ofs+Ocs+Off
Wherein, Mn representes signal quality of adjacent cells, and what Ms represented is the signal quality of Serving cell; Ofn is the frequency shift (FS) of adjacent area; Ofs is the frequency shift (FS) of Serving cell, and Ocn is the sub-district skew of adjacent area, and Ocs is the sub-district skew of Serving cell; Hys is a sluggishness, and Off is the deviant of this measurement event.Can find out from this formula; If Serving cell and signal quality of adjacent cells satisfy inequality A3-1; Satisfy the entry condition of A3 measurement event so, UE starts timer TimeToTrigger, before TimeToTrigger is overtime; Do not satisfy inequality A3-2, then UE reports the measurement report of A3 measurement event to the base station.Else if before TimeToTrigger is overtime; The result that UE measures Serving cell and adjacent area satisfies inequality A3-2 again; Promptly satisfy the condition of leaving of A3 measurement event, UE stops the TimeToTrigger timer, does not also just report the measurement report of A3 measurement event.
The present invention disturbs for fear of the coexistence of end side; Judgement inequality to the A3 measurement event in the existing protocol is made amendment; In the superincumbent judgement inequality, the signal quality of Serving cell will deduct this frequency shift (FS), and the judgement inequality of said A3 measurement event is revised as:
Inequality A3-1 (entry condition)
Mn+Ofn+Ocn-Hys＞Ms+Ofs+Ocs+Off-Offinterference
Inequality A3-2 (leaving condition)
Mn+Ofn+Ocn+Hys＜Ms+Ofs+Ocs+Off-Offinterference
UE carries out measurement and report according to the calculating inequality of amended A3 measurement event.
Step 1002:UE detects Cell2 and satisfies A3 measurement event report condition the measurement of adjacent area, sends measurement report to the base station;
Step 1003: the base station is after receiving the measurement report of UE, and base station judges Cell2 satisfies UE and switches access conditions, sends RRC to UE and connects reconfiguration message, and UE is switched to Cell2;
Step 1004:UE receives that RRC connects reconfiguration message, carries out the reconfiguration process process, switches on the Cell2, sends the RRC connection to the base station and reshuffles completion message;
After UE switches to Cell2 success because the frequency that UE uses is 2300M～2320M, so and the coexistence interference between the WLAN can compare lessly, so just avoided the coexistence interference in the UE equipment.
Present embodiment is different to the measurement of UE configuration with the difference of embodiment 4.Configuration is the measurement of RSRQ among the embodiment 4, and present embodiment has only disposed the measurement of RSRP, and does not dispose the measurement of RSRQ.Because RSRQ can reflect disturbed condition,, TTT is shortened to report suitable adjacent area fast so UE needs only the processing of measuring so can know the interference strength that coexistence is disturbed according to its measurement result.And the measurement of RSRP can not reflect disturbed condition; So can only be when calculating be coexisted the signal quality of the frequency that disturbs; Deduct the frequency shift (FS) that coexistence is disturbed, when alien frequencies relatively, can let UE trigger the trigger condition that suitable alien-frequency district satisfies measurement event faster like this.
Certainly, if what take is the measurement of RSRQ, also can use coexistence interfering frequency skew illustrated in the present embodiment.The interfering frequency that promptly coexists skew also can be used for the measurement configuration that measuring amount is RSRQ.
Embodiment 6
WLAN and LTE coexistence in the user terminal, the up use that LTE Cell1 uses be 2500M～2520M frequency range, the up use of LTE Cell2 be 1920M～1940M frequency range.Two sub-districts are neighbor cells, and are as shown in Figure 7.The current Serving cell of UE is Cell1, is in the RRC connection status.When the WLAN of UE emission, the LTE unit of UE can produce very strong interference to the reception of LTE unit when receiving; Perhaps when the emission of LTE unit, the WLAN unit can cause very strong interference to the reception of WLAN unit when receiving.Disturb for fear of the coexistence between WLAN and the LTE,, when detecting the in running order or WLAN of WLAN, adopt following method to avoid the coexistence between end side WLAN and the LTE to disturb in emission for the LTE side, shown in figure 11, may further comprise the steps:
Step 1101:UE detects WLAN and is launching in work or WLAN, has coexistence between the frequency of the current use of judgement UE and the WLAN and disturbs, and UE carries out alien frequencies and/or different system measurements, searches for operable alien frequencies or different system adjacent area.
The signal quality that step 1102:UE searches alien frequencies adjacent area Cell2 satisfies cell selecting criterion or district reselecting criterion, promptly satisfies the access conditions of UE, on Cell2, sends the request of RRC connection reconstruction to the base station;
Step 1103: the RRC connection reconstruction request message that UE reports is received in the base station, on Cell2, inserts judgement and distributing radio resource, sends RRC connection reconstruction message to UE;
Step 1104:UE receives RRC connection reconstruction message, carries out RRC connection reconstruction processing procedure, sends the RRC connection reconstruction to the base station and accomplishes message;
UE is after the RRC connection reconstruction on the Cell2 completes successfully because the up use of UE is 1920M～1940M frequency range, so and the coexistence interference between the WLAN can compare lessly, so just avoided the coexistence interference in the UE equipment.
WLAN and LTE coexistence in the user terminal, the up use that LTE Cell1 uses be 2500M～2520M frequency range, the up use of LTE Cell2 be 1920M～1940M frequency range.Two sub-districts are neighbor cells, and are as shown in Figure 7.The current Serving cell of UE is Cell1, is in the RRC connection status.When the WLAN of UE emission, the LTE unit of UE can produce very strong interference to the reception of LTE unit when receiving; Perhaps when the emission of LTE unit, the WLAN unit can cause very strong interference to the reception of WLAN unit when receiving.Disturb for fear of the coexistence between WLAN and the LTE,, when detecting the in running order or WLAN of WLAN, adopt following method to avoid the coexistence between end side WLAN and the LTE to disturb in emission for the LTE side, shown in figure 12, may further comprise the steps:
Step 1201:UE detects WLAN and is launching in work or WLAN, has coexistence between the frequency of the current use of judgement UE and the WLAN and disturbs, and UE measures and searches for operable alien frequencies or different system adjacent area;
The signal quality that step 1202:UE searches alien frequencies adjacent area Cell2 satisfies cell selecting criterion or district reselecting criterion; Promptly satisfy the access conditions of UE; To the base station report " coexistence disturbance switching request information; carry in the message and satisfy the Target cell Cell2 that switches starts timer and waits for that the base station initiates to connect reconfiguration message to the RRC that Cell2 initiates to switch;
When carrying out the judgement of district reselecting criterion, the frequency priority of setting Cell2 is higher than the frequency priority of Cell1.
Step 1203:UE did not receive that before timing arrives RRC connects reconfiguration message, then on Cell2, sent the request of RRC connection reconstruction to the base station;
Step 1204: the RRC connection reconstruction request message that UE reports is received in the base station, on Cell2, inserts judgement and distributing radio resource, sends RRC connection reconstruction message to UE;
Step 1205:UE receives RRC connection reconstruction message, carries out RRC connection reconstruction processing procedure, sends the RRC connection reconstruction to the base station and accomplishes message;
At UE after the RRC connection reconstruction completes successfully on the Cell2 because the up use of UE is 1920M～1940M frequency range, so and the coexistence interference between the WLAN can compare lessly, so just avoided the coexistence interference in the UE equipment.
The difference of present embodiment and embodiment 6 is that present embodiment UE at first informing base station initiates to switch, and only in handoff failure, just carries out the RRC connection reconstruction or initiates new RRC connection foundation.
If in step 1203, UE receives that the RRC of base station connects reconfiguration message, then stops timer, carries out the handoff process with embodiment 3.
Embodiment 8
WLAN and LTE coexistence in the user terminal, what LTE Cell1 used is 2380M～2400M frequency range, what LTE Cell2 used is 2300M～2320M frequency range.Two sub-districts are neighbor cells, and are as shown in Figure 7.The current Serving cell of UE is Cell1, is in the RRC idle condition.When the WLAN of UE emission, the LTE unit of UE can produce very strong interference to the beep-page message of LTE unit, the reception of system message, and UE initiates on Cell1 to insert at random also can fail because of the interference of WLAN when receiving; Disturb for fear of the coexistence between WLAN and the LTE,, when detecting the in running order or WLAN of WLAN, adopt following method to avoid the coexistence between end side WLAN and the LTE to disturb in emission promptly for the LTE side, shown in figure 13, may further comprise the steps:
The current frequency F1 that resides in of step 1301:UE, UE obtains system message, and the frequency priority that obtains the frequency priority and be Cell1 is higher than the frequency priority of Cell2:
Step 1302:UE detects WLAN and is launching in work or WLAN; Judge that having coexistence between frequency and the WLAN of the current use of UE disturbs, the frequency priority of Cell1 is configured to be lower than the frequency priority of Cell2 to UE or the frequency priority of Cell1 is set to minimum;
Step 1303: reside on the minimum frequency of priority because UE is current, initiate that other is had the measurement of the adjacent sub-district of high-frequency priority, comprising Cell2;
Step 1304: Cell2 satisfies reselection conditions when the UE judgement, and gravity treatment is to Cell2;
Step 1305:UE receives the system message on the Cell2; Indication frequency priority is the frequency priority that the frequency priority of Cell1 is higher than Cell2; But because have coexistence to disturb on the frequency at Cell1 place; Therefore, frequency priority that will Cell1 is configured to be lower than the frequency priority of Cell2 or the frequency priority of Cell1 is set to minimum;
Step 1306:UE detects that WLAN quits work or WLAN stops emission; Judge the coexistence interference eliminated; The frequency upper frequency priority that no longer Cell1 is belonged to is configured to minimum, the frequency priority of using system message arrangement, and promptly the frequency priority of Cell1 is higher than the frequency priority of Cell2;
Step 1307:, initiate the sub-district of Cell1 place frequency is measured, comprising Cell1 because the frequency priority of Cell1 is higher than the frequency priority of Cell2;
Step 1308: Cell1 satisfies reselection conditions when the UE judgement, and gravity treatment is to Cell1;
This embodiment is for the UE of idle condition, can avoid existing stronger coexistence to disturb between frequency that its LTE uses and the WLAN, promptly having avoided coexistence to disturb the influence to idle condition UE.
Embodiment 9
Based on coexistence interference avoidance method provided by the invention, the present invention also proposes to realize the implement device of said method, and this device comprises: detection module and Executive Module;
Said detection module is used for detecting and whether has produced coexistence and disturb, and said Executive Module is used for detecting coexistence when disturbing, make user terminal switch, reconnect or gravity treatment to the alien frequencies adjacent area.
Corresponding with embodiment 1 or 2, said Executive Module can further comprise:
The indication sending module is disturbed in coexistence, is used for when detecting the coexistence interference, sending the coexistence interference indication message to the base station;
First handover module is used for after receiving the coexistence interference indication message through initiating to switch reconfiguration course or reshuffle measuring process to make user terminal switch the alien frequencies adjacent area.
Corresponding with embodiment 3, said Executive Module can comprise further:
First measurement module is used for when detecting the coexistence interference, carrying out different-frequency measure and/or different system measurements, and the search received signal quality satisfies alien frequencies adjacent area and the different system adjacent area that access requires;
Coexistence disturbance switching request module when being used to search the Target cell that satisfies access conditions, is sent coexistence disturbance switching request message to the base station, carries the identification information of the Target cell that satisfies access conditions in this message;
Second handover module, the identification information of the Target cell that satisfies access conditions that is used for carrying according to said coexistence disturbance switching request message initiates to connect reconfiguration course, makes said user terminal switch to the Target cell that satisfies access conditions.
Corresponding with embodiment 4 or 5, said Executive Module can further comprise:
Measurement configuration parameter modification module is used for when detecting coexistence and disturb, and revises in the configuration parameter of following measurement event one or multinomial: TTT is configured to less than physical layer measuring period or less than 200ms; No matter whether the signal quality of Serving cell surpasses S threshold values (S-measure), all carries out different-frequency measure; The terminal is when carrying out the measurement event assessment, and the employed frequency of Serving cell deducts the frequency shift (FS) that causes because of the coexistence interference;
The measurement and report module is used for detecting when satisfying the alien-frequency district of said measurement event report condition according to amended configuration parameter, sends measurement report to the base station;
The 3rd handover module is used for satisfying the alien frequencies adjacent area of switching access conditions according to the measurement report judgement that reports, and initiates RRC and connects reconfiguration course.
Corresponding with embodiment 6, said Executive Module can further comprise:
Second measurement module is used for when detecting the coexistence interference, carrying out different-frequency measure and/or different system measurements, and the search received signal quality satisfies alien frequencies adjacent area and the different system adjacent area that access requires;
The first connection reconstruction module is used for when searching the Target cell that satisfies access conditions, carries out to the said RRC connection reconstruction process that satisfies the Target cell of access conditions.
Corresponding with embodiment 7, said Executive Module can further comprise:
The 3rd measurement module is used for when detecting the coexistence interference, carrying out different-frequency measure and/or different system measurements, and the search received signal quality satisfies alien frequencies adjacent area and the different system adjacent area that access requires;
Coexistence disturbance switching request module when being used to search the Target cell that satisfies access conditions, is sent coexistence disturbance switching request message to the base station, carries the identification information of the Target cell that satisfies access conditions in this message; And start timer wait base station to the Target cell initiation handoff procedure that satisfies access conditions;
The Timing Processing module has been used to judge whether before said timer expiry, to receive that the RRC that send the base station connects reconfiguration message;
The 4th handover module is used for before said timer expiry, receives when the RRC that sends the base station connects reconfiguration message, according to the identification information of the Target cell that satisfies access conditions that carries in the said coexistence disturbance switching request message, carries out the connection reconfiguration course;
The second connection reconstruction module is used at timer expiry, does not receive when the RRC that sends the base station connects reconfiguration message, carries out to the said Target cell RRC connection reconstruction process that satisfies access conditions.
Corresponding with embodiment 8, said Executive Module can further comprise:
First priority is provided with module, is used under idle condition, and when detecting the coexistence interference, the frequency priority of current service cell is set to be lower than the frequency priority of alien frequencies adjacent area;
Measure handover module, the alien frequencies adjacent area that is used for other is had high-frequency priority is measured, and lays equal stress on and chooses the alien frequencies adjacent area of satisfying reselection conditions;
Second priority is provided with module, is used in gravity treatment behind the alien frequencies adjacent area, and the frequency priority of source Serving cell is set to be lower than the frequency priority of current service cell;
Priority is recovered module, is used for when detecting coexistence interference disappearance, recovering the frequency priority of source Serving cell according to system message.
Certainly; The present invention also can have other various embodiments; The present invention also is used in other wireless technologys; Under the situation that does not deviate from spirit of the present invention and essence thereof, those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of claim of the present invention.
Claims (16)
1. a coexistence interference avoidance method is characterized in that, comprising:
Under connection status, when the coexistence interference appears in subscriber terminal side, make said user terminal switch to or reconnect and receive the alien frequencies adjacent area;
Under idle condition, when the coexistence interference appears in subscriber terminal side, make said user terminal gravity treatment to alien frequencies adjacent area or different system adjacent area.
2. method according to claim 1 is characterized in that, the method that makes said user terminal switch to the alien frequencies adjacent area is:
When said user terminal detects the coexistence interference, send the coexistence interference indication message to the base station;
After the base station receives said coexistence interference indication message, make said user terminal switch to the alien frequencies adjacent area.
3. method according to claim 2 is characterized in that, under the situation of alien frequencies with coverage cell, after the base station received said coexistence interference indication message, the method that makes said user terminal switch to the alien frequencies adjacent area was:
The base station is sent Radio Resource control (RRC) to said user terminal and is connected reconfiguration message; After said user terminal receives that said RRC connects reconfiguration message; Carry out the reconfiguration process process, switch to the alien frequencies adjacent area, and send the RRC connection to the base station and reshuffle completion message.
4. method according to claim 2 is characterized in that, constitutes at different base station under the situation of alien frequencies adjacent area, and after the base station received said coexistence interference indication message, the method that makes said user terminal switch to the alien frequencies adjacent area was:
Serving BS is initiated RRC and is connected reconfiguration course, and said user terminal is measured the alien frequencies adjacent area;
Said user terminal is to the measurement report of serving base stations report to the alien frequencies adjacent area;
After serving BS receives the measurement report of said user terminal, initiate handoff procedure, make said user terminal switch to the alien frequencies adjacent area to the alien frequencies adjacent area.
5. method according to claim 1 is characterized in that, the method that makes said user terminal switch to the alien frequencies adjacent area is:
When said user terminal detects the coexistence interference, carry out different-frequency measure and/or different system measurements, the search received signal quality satisfies alien frequencies adjacent area and the different system adjacent area that access requires;
When said user terminal searches the Target cell that satisfies access conditions, send coexistence disturbance switching request message to the base station, carry the identification information of the Target cell that satisfies access conditions in this message;
The base station initiates to connect reconfiguration course according to the identification information of the Target cell that satisfies access conditions that carries in the said coexistence disturbance switching request message, makes said user terminal switch to the Target cell that satisfies access conditions.
6. method according to claim 1 is characterized in that, the method that makes said user terminal switch to the alien frequencies adjacent area is:
When said user terminal detects coexistence and disturbs, revise in the configuration parameter of following measurement event one or multinomial: TTT is configured to less than physical layer measuring period or less than 200ms; No matter whether the signal quality of Serving cell surpasses S threshold values (S-measure), all carries out different-frequency measure; The terminal is when carrying out the measurement event assessment, and the employed frequency of Serving cell deducts the frequency shift (FS) that causes because of the coexistence interference;
When said user terminal detects the alien-frequency district that satisfies said measurement event report condition, send measurement report to the base station;
The base station according to the measurement report of said user terminal to send up after judgement satisfy the alien frequencies adjacent area that said user terminal switches access conditions, initiate RRC and connect reconfiguration course.
7. method according to claim 1 is characterized in that, the method that makes said user terminal switch to or reconnect to receive the alien frequencies adjacent area is:
When said user terminal detects the coexistence interference, carry out different-frequency measure and/or different system measurements, the search received signal quality satisfies alien frequencies adjacent area and the different system adjacent area that access requires;
When said user terminal searches the Target cell that satisfies access conditions, initiate to the said RRC connection reconstruction process that satisfies the Target cell of access conditions to the base station, said user terminal is rebuild be connected to the said Target cell that satisfies access conditions.
8. method according to claim 7 is characterized in that, said user terminal initiates before the RRC connection reconstruction process of the said Target cell that satisfies access conditions, also to comprise step to the base station:
Said user terminal sends coexistence disturbance switching request message to the base station, carries the identification information of the Target cell that satisfies access conditions in this message, and starts timer wait base station to the Target cell initiation handoff procedure that satisfies access conditions;
If before said timer expiry; Said user terminal receives the RRC that sends the base station and connects reconfiguration message; Then reconfiguration course is initiated to connect according to the identification information of the Target cell that satisfies access conditions that carries in the said coexistence disturbance switching request message in the base station;
If said timer expiry, said user terminal are not received the RRC that sends the base station yet and are connected reconfiguration message, then initiate to the said RRC connection reconstruction process that satisfies the Target cell of access conditions to the base station.
9. method according to claim 1 is characterized in that, makes said user terminal gravity treatment to the method for the adjacent area of alien frequencies adjacent area or different system be:
Under idle condition, when said user terminal detected the coexistence interference, the frequency priority of current service cell was set to be lower than the frequency priority of alien frequencies adjacent area;
Said user terminal is measured the alien frequencies adjacent area that other has high-frequency priority, lays equal stress on and chooses the alien frequencies adjacent area of satisfying reselection conditions;
Behind the alien frequencies adjacent area, the frequency priority of source Serving cell is set to be lower than the frequency priority of current service cell in said user terminal gravity treatment;
When said subscriber equipment detects coexistence interference disappearance, recover the frequency priority of source Serving cell according to system message.
10. a coexistence is disturbed and is avoided device, it is characterized in that, comprising:
Whether detection module is used for detecting having produced to coexist and disturbs;
Executive Module is used for detecting coexistence when disturbing, make user terminal switch, reconnect or gravity treatment to the alien frequencies adjacent area.
11. device according to claim 10 is characterized in that, said Executive Module comprises:
The indication sending module is disturbed in coexistence, is used for when detecting the coexistence interference, sending the coexistence interference indication message to the base station;
First handover module is used for after receiving the coexistence interference indication message through initiating to switch reconfiguration course or reshuffle measuring process to make user terminal switch the alien frequencies adjacent area.
12. device according to claim 10 is characterized in that, said Executive Module comprises:
First measurement module is used for when detecting the coexistence interference, carrying out different-frequency measure and/or different system measurements, and the search received signal quality satisfies alien frequencies adjacent area and the different system adjacent area that access requires;
Coexistence disturbance switching request module when being used to search the Target cell that satisfies access conditions, is sent coexistence disturbance switching request message to the base station, carries the identification information of the Target cell that satisfies access conditions in this message;
Second handover module, the identification information of the Target cell that satisfies access conditions that is used for carrying according to said coexistence disturbance switching request message initiates to connect reconfiguration course, makes said user terminal switch to the Target cell that satisfies access conditions.
13. device according to claim 10 is characterized in that, said Executive Module comprises:
Measurement configuration parameter modification module is used for when detecting coexistence and disturb, and revises in the configuration parameter of following measurement event one or multinomial: TTT is configured to less than physical layer measuring period or less than 200ms; No matter whether the signal quality of Serving cell surpasses S threshold values (S-measure), all carries out different-frequency measure; The terminal is when carrying out the measurement event assessment, and the employed frequency of Serving cell deducts the frequency shift (FS) that causes because of the coexistence interference;
The measurement and report module is used for detecting when satisfying the alien-frequency district of said measurement event report condition according to amended configuration parameter, sends measurement report to the base station;
The 3rd handover module is used for satisfying the alien frequencies adjacent area of switching access conditions according to the measurement report judgement that reports, and initiates RRC and connects reconfiguration course.
14. device according to claim 10 is characterized in that, said Executive Module comprises:
Second measurement module is used for when detecting the coexistence interference, carrying out different-frequency measure and/or different system measurements, and the search received signal quality satisfies alien frequencies adjacent area and the different system adjacent area that access requires;
The first connection reconstruction module is used for when searching the Target cell that satisfies access conditions, carries out to the said RRC connection reconstruction process that satisfies the Target cell of access conditions.
15. device according to claim 10 is characterized in that, said Executive Module also comprises:
The 3rd measurement module is used for when detecting the coexistence interference, carrying out different-frequency measure and/or different system measurements, and the search received signal quality satisfies alien frequencies adjacent area and the different system adjacent area that access requires;
Coexistence disturbance switching request module when being used to search the Target cell that satisfies access conditions, is sent coexistence disturbance switching request message to the base station, carries the identification information of the Target cell that satisfies access conditions in this message; And start timer wait base station to the Target cell initiation handoff procedure that satisfies access conditions;
The Timing Processing module has been used to judge whether before said timer expiry, to receive that the RRC that send the base station connects reconfiguration message;
The 4th handover module is used for before said timer expiry, receives when the RRC that sends the base station connects reconfiguration message, according to the identification information of the Target cell that satisfies access conditions that carries in the said coexistence disturbance switching request message, carries out the connection reconfiguration course;
The second connection reconstruction module is used at timer expiry, does not receive when the RRC that sends the base station connects reconfiguration message, carries out to the said Target cell RRC connection reconstruction process that satisfies access conditions.
16. device according to claim 10 is characterized in that, said Executive Module also comprises:
First priority is provided with module, is used under idle condition, and when detecting the coexistence interference, the frequency priority of current service cell is set to be lower than the frequency priority of alien frequencies adjacent area;
Measure handover module, the alien frequencies adjacent area that is used for other is had high-frequency priority is measured, and lays equal stress on and chooses the alien frequencies adjacent area of satisfying reselection conditions;
Second priority is provided with module, is used in gravity treatment behind the alien frequencies adjacent area, and the frequency priority of source Serving cell is set to be lower than the frequency priority of current service cell;
Priority is recovered module, is used for when detecting coexistence interference disappearance, recovering the frequency priority of source Serving cell according to system message.
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| CMCC: "Kickoff for SI on interference avoidance for in-device coexistence", 《3GPP TSG-RAN WG2 MEETING #70BIS R2-103949》 * |
| QUALCOMM: "RRM Analysis for In-device coexistence", 《3GPP TSG-RAN WG2 MEETING #70BIS R2-103785》 * |
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