CN104219706B - The method and mobile terminal of counterparting communications mode parameter are detected in double-communication mode - Google Patents
The method and mobile terminal of counterparting communications mode parameter are detected in double-communication mode Download PDFInfo
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- CN104219706B CN104219706B CN201310219942.4A CN201310219942A CN104219706B CN 104219706 B CN104219706 B CN 104219706B CN 201310219942 A CN201310219942 A CN 201310219942A CN 104219706 B CN104219706 B CN 104219706B
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Abstract
The embodiment of the present invention provides the method and mobile terminal that counterparting communications mode parameter is detected in a kind of double-communication mode, and method is applied to mobile terminal, including：Mobile terminal is in the first communication pattern, executes the first communication pattern and carries out the operation that time slot is aligned with the second communication pattern；According to the frame structure of the first communication pattern and time slot proportion and the frame structure and time slot proportion of the second communication pattern；Test position where extrapolating the parameter that should be detected in the second communication mode from the regular time slots transfer point of the first communication pattern；Start detection parameters in the inspection positions of the second communication pattern.In the case of double mode coexists, the interference that the cross time-slot between different system is brought is reduced by using time slot alignment, after the time slot alignment of double mode, measurement of the appropriate test position startup to another pattern is found, realizes and does not need the various parameters that special configuration is just able to detect that under another pattern.
Description
Technical field
The present invention relates to the technology of double-communication mode, detection counterparting communications pattern ginseng in a kind of double-communication mode is particularly related to
Several methods and mobile terminal.
Background technology
The different system of bimodulus, which mutually measures, refers to, the network state of another pattern is captured in currently resident pattern：It is right
Downlink from the base station the second wireless access technology (RAT) measures, to the network of the second wireless access technology base station
It is captured.In TD SDMA (TD-SCDMA, Time Division-Synchronous Code Division
Multiple Access) and timesharing long term evolution (TD-LTE, Time Division Long Term Evolution) bimodulus
In the mutual measuring technique of system, TD-LTE patterns can be measured in TD-SCDMA patterns, it can also be in TD-LTE
TD-SCDMA patterns are measured in pattern.
It is required for assuming that the frame boundaries of bimodulus are alignment, TD-SCDMA patterns and TD-LTE patterns in these measuring techniques
Have an identical frame boundaries in mobile terminal (UE), UE according to current resident (connection) communication pattern (the first communication pattern) when
Gap transfer point be tuned to the second wireless access technology base station frequency point, receive the second wireless access technology base station signal, to
Measure different system (the second communication pattern).
There are the following problems for the prior art：In TD-SCDMA and TD-LTE double modes, due to TD-SCDMA and TD-LTE
With different frame structures, the case where TD-SCDMA and TD-LTE are misaligned it is easy to appear time slot, it is easy to when causing to intersect
The interference that gap is brought, if carrying out time slot alignment, the frame structure of both of which needs special configuration, could realize that time slot is aligned.
Invention content
The technical problem to be solved in the present invention is to provide the sides that counterparting communications mode parameter is detected in a kind of double-communication mode
Method and mobile terminal in the first communication mode measure the parameter of the second communication pattern in the case where time slot is aligned.
In order to solve the above technical problems, detecting other side's pattern mutually in a kind of double-communication mode of the embodiment of the present invention offer
The method of parameter, is applied to mobile terminal, and method includes：Mobile terminal is in the first communication pattern, executes the first communication pattern
The operation that time slot is aligned is carried out with the second communication pattern；According to the frame structure of the first communication pattern and time slot proportion and second
The frame structure and time slot proportion of communication pattern；It is extrapolated from the regular time slots transfer point of first communication pattern in the second communication
Test position where the parameter that should be detected in pattern；Start described in detection in the inspection positions of the second communication pattern
Parameter.
In the method, the first communication pattern is TD-SCDMA patterns, and the second communication pattern is TD-LTE patterns from institute
The regular time slots transfer point for stating the first communication pattern extrapolates test position where the parameter that should be detected, including：Determine TD-
In SCDMA patterns the regular time slots transfer point that time slot is aligned is realized with TD-LTE patterns；It is pushed away from the regular time slots transfer point
N number of subframe before calculating the regular time slots transfer point belongs to the same TD-LTE fields, in the TD-LTE fields and conventional
It is the test position before time where time slot transfer point.
In the method, starts to detect the parameter in the inspection positions of the second communication pattern, specifically include：
The TDD change-over switches that TD-LTE patterns are arranged are reception state, receive the corresponding signal of at least one parameter.
In the method, the TDD change-over switches of setting TD-LTE patterns are reception state, receive at least one parameter pair
The signal answered, specifically includes：N milliseconds before the time where the regular time slots transfer point open TDD switches, in SF0
Time slot 1 receive Physical Broadcast Channel signal or reference signal；The N millis before the time where the regular time slots transfer point
Second opens TDD switches, obtains secondary synchronization signal in the time slot 1 of SF0, calculates the reception power of secondary synchronization signal；In the routine
TDD switches are opened before time where time slot transfer point for N-1 milliseconds, are obtained primary synchronization signal, are calculated connecing for primary synchronization signal
Receive power.
In the method, the first communication pattern is TD-LTE patterns, and the second communication pattern is TD-SCDMA patterns；From institute
The regular time slots transfer point for stating the first communication pattern extrapolates test position where the parameter that should be detected, including：Obtain TD-
The regular time slots transfer point and special time slot transfer point of LTE patterns, when the ascending time slot of TD-SCDMA patterns is M, when downlink
When gap is 6-M, according to the regular time slots transfer point, as institute at the time of corresponding before finding the regular time slots transfer point
State test position, wherein 6 time slots of TD-SCDMA patterns do not include TS0 time slots and special time slot.
In the method, as the test position, packet at the time of corresponding before finding the regular time slots transfer point
It includes：Using ((M+1) * 864+352) timeslice before the regular time slots transfer point as the test position, TS0 time slots are received
Primary Common Control Physical Channel signal；Using (M*864+352) timeslice before regular time slots transfer point as the detection
Position intercepts the downlink synchronous signal of downlink synchronization slot.
A kind of mobile terminal, including：Time slot alignment unit, for when mobile terminal is in the first communication pattern, executing
First communication pattern carries out the operation that time slot is aligned with the second communication pattern；Frame structure and time slot proportion unit, for according to the
The frame structure and time slot proportion of one communication pattern and the frame structure and time slot proportion of the second communication pattern；It is logical from described first
The regular time slots transfer point of letter pattern extrapolates the test position where the parameter that should be detected in the second communication mode；Detection
Unit, for starting to detect the parameter in the inspection positions of the second communication pattern.
In the mobile terminal, frame structure and time slot proportion unit include：First detection module, for when the first communication
Pattern is TD-SCDMA patterns, when the second communication pattern is TD-LTE patterns, determine in TD-SCDMA patterns with TD-LTE patterns
Realize the regular time slots transfer point of time slot alignment；Before extrapolating the regular time slots transfer point from the regular time slots transfer point
N number of subframe belong to the same TD-LTE fields, before the time in the TD-LTE fields and where regular time slots transfer point
It is the test position.
In the mobile terminal, detection unit includes：First detection execution module, for TD-LTE patterns to be arranged
TDD change-over switches are reception state, receive the corresponding signal of at least one parameter.
In the mobile terminal, the first detection execution module further includes：TDD switch control modules, for described normal
The N milliseconds before time where rule time slot transfer point open TDD switches, and Physical Broadcast Channel signal is received in the time slot 1 of SF0
Or reference signal；TDD switches are opened before the time where the regular time slots transfer point for N milliseconds, in the time slot 1 of SF0
Secondary synchronization signal is obtained, the reception power of secondary synchronization signal is calculated；The N-1 before the time where the regular time slots transfer point
Millisecond opens TDD switches, obtains primary synchronization signal, calculates the reception power of primary synchronization signal.
In the mobile terminal, frame structure and time slot proportion unit include：Second detection module, for when the first communication
Pattern is TD-LTE patterns, when the second communication pattern is TD-SCDMA patterns, obtains the regular time slots transfer point of TD-LTE patterns
With special time slot transfer point, when TD-SCDMA patterns ascending time slot be it is N number of, descending time slot be 6-N when, according to the routine
Time slot transfer point, as the test position at the time of corresponding before finding the regular time slots transfer point, wherein TD-SCDMA
6 time slots of pattern do not include TS0 time slots and special time slot.
In the mobile terminal, detection unit includes：Signal acquisition module, for by the regular time slots transfer point it
Before ((M+1) * 864+352) timeslice as the test position, receive the Primary Common Control Physical Channel signal of TS0 time slots；
Using (M*864+352) timeslice before the regular time slots transfer point as the test position, downlink synchronization slot is intercepted
Downlink synchronous signal.
The above-mentioned technical proposal of the present invention has the beneficial effect that：In the case of double mode coexists, by using time slot pair
The interference that the cross time-slot between different system is brought is reduced together, after the time slot alignment of double mode, finds appropriate test position
Start the measurement to another pattern, realizes and do not need each seed ginseng that special configuration is just able to detect that under another pattern
Number.
Description of the drawings
Fig. 1 shows the method flow schematic diagrams for detecting other side's mode parameter in a kind of double-communication mode mutually；
Fig. 2 indicates the frame structure schematic diagram of TD-LTE；
Fig. 3 indicates the frame structure schematic diagram of TD-SCDMA；
Fig. 4 indicates the schematic diagram one of the time slot alignment of two communication patterns；
Fig. 5 indicates the schematic diagram two of the time slot alignment of two communication patterns；
Fig. 6 indicates a kind of structural schematic diagram of mobile terminal.
Specific implementation mode
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
3GPP defines the frame knot of the FDD and TDD technologies of long term evolution (LTE, Long Term Evolution) pattern
Structure, frame length are all 10ms.
As shown in Fig. 2, the frame structure of TD-LTE patterns, 10ms frames are divided into two fields, contain 10 subframes altogether
(Subframe), each subframe lengths 1ms.2nd subframe and the 7th subframe are special subframe, and a special subframe includes 3 parts：
Downlink synchronization slot (DwPTS), protection time slot (GP, Guard Point) and ascending time slot (UpPTS).
Assuming that bandwidth is 20MHz, orthogonal frequency division multiplexi (OFDM, Orthogonal a Frequency
Division Multiplexing) symbol (symbol) the corresponding time be 0.071354ms.
In TD-LTE patterns, TDD upstream and downstream bandwidths are not fixed, and there are two time slot transfer points, and time slot transfer point is one
Position on a temporal meaning：
In regular time slots, regular time slots transfer point refer to ascending time slot and descending time slot time slot transfer point (UDSP,
Uplink-to-downlink switching point), UDSP is located at the frame boundaries position of sub-frame of uplink and downlink subframe conversion
It sets.
In special time slot, it can be converted between downlink synchronization slot (DwPTS) and uplink synchronous time slot (UpPTS),
Protection interval GP between DwPTS and UpPTS is special time slot transfer point (DUSP, downlink-to-uplink
Switching point), correspond to radius of society r=(TGP/2) * c, wherein TGP is the protection interval GP corresponding times, and c is
The light velocity.
As shown in figure 3, the frame structure of TD-SCDMA patterns, 10ms frames are divided into two 5ms subframes, and each 5ms subframes include 7
A regular time slots and 1 special time slot.Each regular time slots include two data (Data) partly with an intermediate code
(Midamble) for the GP of part and 16 timeslices (chip) as decline, data portion is 352chip (bandwidth
1.28MHz), intermediate code part is 128chip；Special time slot is 352chip, including three parts：DwPTS (96chip), GP
(96chip) and UpPTS (160chip).
In TD-SCDMA patterns, in regular time slots, regular time slots transfer point (convert by the time slot of ascending time slot and descending time slot
Point, UDSP) refer to each time slot end GP (16chip), the protection time slot which is aligned as time slot.
Carrying out aligned configuration to time slot when TD-LTE coexists with TD-SCDMA should follow：
First, as shown in figure 4, ensureing the regular time slots transfer point UDSP alignment of two patterns.
Secondly, as shown in figure 5, adjusting the GP length of special subframe in TD-LTE patterns, DwPTS in special time slot is provided,
The proportion relation of GP and UpPTS, under normal circumstances, the GP ratio TD-SCDMA patterns of the special subframe of TD-LTE patterns it is special when
The GP of gap is big, during frame structure proportioning is arranged, ensures that the GP (0.075ms) of TD-SCDMA special time slots is fallen in TD-LTE
Special subframe GP in, this is because the GP length of the special subframe of TD-LTE is variable, a minimum OFDM symbol corresponds to
Time, such as：When bandwidth is 20MHz, minimum GP length is 0.071354ms.
During this, under the premise of ensureing regular time slots transfer point UDSP alignment, according to the different of TD-SCDMA
Time slot proportion, it may be determined that go out the position of the special subframe of TD-LTE patterns and the length of its GP, ensure that TD-SCDMA spies
The GP of different time slot is fallen within the corresponding GP of TD-LTE special time slots, so it may be considered that special time slot realizes alignment.
The embodiment of the present invention provides a kind of method for detecting other side's mode parameter in double-communication mode mutually, is applied to movement
Terminal, as shown in Figure 1, including：
Step 101, mobile terminal is in the first communication pattern, when executing the first communication pattern and the progress of the second communication pattern
The operation of gap alignment；
Step 102, according to the frame structure of the frame structure of the first communication pattern and time slot proportion and the second communication pattern and
Time slot proportion；The ginseng that should be detected in the second communication mode is extrapolated from the regular time slots transfer point of first communication pattern
Test position where number；
Step 103, start to detect the parameter in the inspection positions of the second communication pattern.
Using the technology provided, in the case of double mode coexists, by using between the different system of time slot alignment reduction
The interference that cross time-slot is brought is found appropriate test position and is started to another pattern after the time slot alignment of double mode
It measures, realizes and do not need the various parameters that special configuration is just able to detect that under another pattern.
In a preferred embodiment, the first communication pattern is TD-SCDMA patterns, and the second communication pattern is TD-LTE moulds
Formula.
Alternatively, the first communication pattern is TD-LTE patterns, the second communication pattern is TD-SCDMA patterns.
Double mode is supported to realize time slot alignment, as shown in figure 5, it supports the time slot under various conditions of mixture ratios to be aligned.With TD-
SCDMA time slot proportions 2:For 5, other than downlink TS0 time slots, 4 descending time slots, 2 ascending time slots are configured, TD-LTE is used
Time slot proportion 1:3.The base station of different mode keeps the send-receive clock timing mechanism of time slot alignment to keep synchronous, and, it is mobile
Terminal knows the time slot proportion of both of which, and received signal meets time slot alignment to mobile terminal in different modes.
In a preferred embodiment, being extrapolated from the regular time slots transfer point of first communication pattern should detect
Test position where parameter, including：
It determines in TD-SCDMA patterns and realizes the regular time slots transfer point that time slot is aligned with TD-LTE patterns；
N number of subframe before extrapolating the regular time slots transfer point from the regular time slots transfer point belongs to same
TD-LTE fields are the test positions before the time in the TD-LTE fields and where regular time slots transfer point.
Since the regular time slots transfer point UDSP of TD-SCDMA patterns and the regular time slots transfer point UDSP in TD-LTE are
Alignment, therefore, can be extrapolated based on this regular time slots transfer point UDSP SF0 included by 5ms fields, special subframe,
SF1, SF2 and SF3, it is assumed that time slot configuration format is [DSUDD] in TD-LTE, shows there is N=3 subframe before UDSP, behind
There is 5-N=2 subframe to belong to the same TD-LTE fields.
Test position be refer in TD-LTE fields and regular time slots transfer point UDSP where time before some
Moment, which shows be the time in the TD-LTE fields and where UDSP before, start measure TD-LTE moulds
At least one parameter of formula.
In a preferred embodiment, start to detect the parameter in the inspection positions of the second communication pattern, have
Body includes：
The TDD change-over switches that TD-LTE patterns are arranged are reception state, receive the corresponding signal of at least one parameter.
In a preferred embodiment, the TDD change-over switches of setting TD-LTE patterns are reception state, are received at least one
The corresponding signal of parameter, specifically includes：
N milliseconds before the time where the regular time slots transfer point open TDD switches, are received in the time slot 1 of SF0
Physical Broadcast Channel signal or reference signal；
Open TDD switches for N milliseconds before the time where the regular time slots transfer point, SF0 time slot 1 it is auxiliary same
Signal is walked, the reception power of secondary synchronization signal is obtained；
TDD switches are opened before the time where the regular time slots transfer point for N-1 milliseconds, intercept primary synchronization signal,
Obtain the reception power of primary synchronization signal.
In an application scenarios, it is assumed that UE is in the connected state (Connected) of TD-SCDMA patterns, TD-LTE patterns
Can be Idle, DRX or connected state at this time.
1st step, UE obtains the frame structure and time slot proportion of TD-SCDMA patterns, to confirm regular time slots transfer point,
To distinguish the time slot transfer point of TD-LTE patterns, the regular time slots transfer point of TD-SCDMA patterns is known as the first UDSP herein.
2nd step, UE obtain TD-LTE patterns frame structure with and time slot proportion, extrapolate TD-LTE patterns from the first UDSP
5ms fields position, 5ms fields include：SF0, special subframe, SF1, SF2 and SF3.
As shown in fig. 5, it is assumed that the time slot configuration format of UE is [DSUDD], it is known that N=3, that is, UDSP is in SF1
The GP (16chip) at end, has N number of subframe before UDSP, there is 5-N subframe behind UDSP.
3rd step, UE set the TDD change-over switches of TD-LTE patterns to reception state before the time where UDSP,
Measure including but not limited to following parameters：
Sub-step a, Nms (N=3) opens TDD switches before UDSP,
Physical Broadcast Channel (PBCH, physical broadcast channel) is received in 1 position of time slot of SF0 to believe
Number, it is surveyed so as to obtain received signal intensity instruction (RSSI, Received Signal Strength Indication)
Magnitude,
Reference signal (RS, Reference Signal) is received in 1 position of time slot of SF0, reference signal is obtained and receives work(
Rate (RSRP, Reference Signal Receiving Power) measured value.
1 position of time slot of SF0 actually refers to the 2nd time slot of the 1st subframe.
Sub-step b opens the moment in the TDD change-over switches of sub-step a, measures the secondary synchronization signal of 1 position of time slot of SF0
(SSS, Secondary Synchronization Signal), obtains the reception power of secondary synchronization signal.
Sub-step c, (N-1) ms moment before UDSP intercept primary synchronization signal (PSS, Primary
Synchronization Signal), calculate the reception power of primary synchronization signal.
Due to having cell specific reference signal (CRS, the Cell-specific of configuration over each slot
Before reference signals, R8), thus can be to RSSI, received signal code power (RSCP, Received Signal
Code Power) etc. measured values assessed, judge the channel quality of TD-LTE patterns.
Sub-step d, other time slots other than TS0 and special time slot measure other parameters.
4th step, predetermined threshold value XdB, by the power P and threshold value of reference signal/pilot tone/PBCH signals of measurement
XdB compares, and carries out the operations such as subsequent switching.
In a preferred embodiment, the first communication pattern is TD-LTE patterns, and the second communication pattern is TD-SCDMA moulds
Formula.
In a preferred embodiment, being extrapolated from the regular time slots transfer point of first communication pattern should detect
Test position where parameter, including：
The regular time slots transfer point and special time slot transfer point of TD-LTE patterns are obtained,
When the ascending time slot of TD-SCDMA patterns is M, and descending time slot is 6-M, converted according to the regular time slots
Point, as the test position at the time of corresponding before finding the regular time slots transfer point, wherein the 6 of TD-SCDMA patterns
A time slot does not include TS0 time slots and special time slot.
In a preferred embodiment, as the check bit at the time of corresponding before finding the regular time slots transfer point
It sets, including：
Using ((M+1) * 864+352) chip before the regular time slots transfer point as the test position, when receiving TS0
The Primary Common Control Physical Channel signal (PCCPCH, Primary Common Control Physical Channel) of gap；
Using (M*864+352) chip before the regular time slots transfer point as the test position, interception downlink is same
Walk the downlink synchronous signal of time slot.
In embodiment, the Your Majesty that the positions (M+1) * 864+352chip before the time where UDSP receive TS0 is controlled altogether
Physical channel signal processed calculates Sync DL signal powers；(M*864+352) chip before UDSP starts to receive signal, cuts
The downlink synchronous signal on DwPTS is taken, Sync DL signal powers are calculated.Later, by calculated Sync DL signal powers with
And RSSI, RSCP are compared with corresponding pre-determined threshold Y.
In an application scenarios, UE is in the connected state of TD-LTE patterns, and TD-SCDMA patterns are in Idle or DRX
State is arranged UE and opens RF switch on the corresponding frequency point of TD-SCDMA patterns and be in reception state, at this time to TD-
SCDMA patterns carry out different inter-frequency measurement, including：
Step 1, UE obtains the time slot proportion of TD-LTE patterns, including the position of regular time slots transfer point and special time slot turn
Change position a little.
Step 2, UE obtains the time slot proportion of TD-SCDMA patterns, if having M after removing TS0 time slots and special time slot
Ascending time slot then has 6-M descending time slot.
Step 3, according to the positions UDSP of the regular time slots of TD-LTE patterns, UE is in the corresponding frequency point of TD-SCDMA patterns
On, it opens RF switch and is in reception state, measure including but not limited to following parameters：
A, positions chip ((M+1) * 864+352) before the time where UDSP receive the PCCPCH letters on TS0 time slots
Number, calculate the measured value of its RSSI and RSCP etc..
TD-SCDMA bandwidth is 1.28MHz, to which each Chip corresponding times are 1/1.28e6s.
B, (M*864+352) chip before the time where UDSP start to receive signal, intercept the down-going synchronous of DwPTS
Signal calculates the power of Sync DL signals, judges TD-SCDMA channel status.
Step 4, preset power threshold, power of calculated RSSI, RSCP and Sync DL signals etc. with it is corresponding
Power threshold be compared, then execute switching etc. operation.
Embodiment provided by the invention ensure that, when UE is in the first communication pattern, no matter the second communication pattern is in
Idle, DRX or connected state can measure the parameter of the second communication pattern under the first communication pattern.
The embodiment of the present invention also provides a kind of mobile terminal, as shown in fig. 6, including：
Time slot alignment unit 601, for when mobile terminal be in the first communication pattern, the first communication pattern of execution and the
Two communication patterns carry out the operation of time slot alignment；
Frame structure and time slot proportion unit 602, for the frame structure and time slot proportion according to the first communication pattern, Yi Ji
The frame structure and time slot proportion of two communication patterns；It is extrapolated from the regular time slots transfer point of first communication pattern logical second
Test position where the parameter that should be detected in letter pattern；
Detection unit 603, for starting to detect the parameter in the inspection positions of the second communication pattern.
In a preferred embodiment, frame structure and time slot proportion unit 602 include：
First detection module, for being TD-SCDMA patterns when the first communication pattern, the second communication pattern is TD-LTE moulds
When formula, determines in TD-SCDMA patterns and realize the regular time slots transfer point that time slot is aligned with TD-LTE patterns；From it is described conventional when
N number of subframe before extrapolating the regular time slots transfer point at gap transfer point belongs to the same TD-LTE fields, the TD-LTE
It is the test position before time in field and where regular time slots transfer point.
In a preferred embodiment, detection unit 603 includes：
First detection execution module, the TDD change-over switches for TD-LTE patterns to be arranged are reception state, receive at least one
The corresponding signal of a parameter.
In a preferred embodiment, the first detection execution module further includes：
TDD switch control modules open TDD for the N milliseconds before the time where the regular time slots transfer point
Switch receives Physical Broadcast Channel signal or reference signal in the time slot 1 of SF0；
TDD switches are opened before the time where the regular time slots transfer point for N milliseconds, are obtained in the time slot 1 of SF0 auxiliary
Synchronizing signal calculates the reception power of secondary synchronization signal；
TDD switches are opened before the time where the regular time slots transfer point for N-1 milliseconds, obtain primary synchronization signal,
Calculate the reception power of primary synchronization signal.
During the work time, the operation principle that two kinds of situations describe mobile terminal can be divided into.
In an application scenarios, UE is in the connected state of TD-SCDMA patterns, and TD-LTE patterns are Idle, DRX at this time
Or connected state.
1st step, UE obtain the frame structure and time slot proportion of TD-SCDMA patterns, and time slot alignment unit 601 executes time slot pair
Neat operation, to confirm regular time slots transfer point.To distinguish the time slot transfer point of TD-LTE patterns, herein TD-SCDMA patterns
Regular time slots transfer point be known as the first UDSP.
2nd step, the first detection module in frame structure and time slot proportion unit 602 obtain the frame structure of TD-LTE patterns
With and time slot proportion, the position of the 5ms fields of TD-LTE patterns is extrapolated from the first UDSP, 5ms fields include：It is SF0, special
Subframe, SF1, SF2 and SF3.
If as shown in figure 5, the time slot configuration format of TD-LTE patterns be [DSUDD], it is known that N=3, that is, UDSP be
The GP at the end of SF1 has N number of subframe before UDSP, there is 5-N subframe behind UDSP.
3rd step, the first of detection unit 603 detects execution module before the time where UDSP by TD-LTE patterns
TDD change-over switches are set as reception state,
TDD switch control modules in first detection execution module, measure including but not limited to following parameters：
Nms (N=3) opens TDD switches before UDSP, and Physical Broadcast Channel signal is received in 1 position of time slot of SF0, to
Received signal intensity instruction measured value can be obtained, reference signal is received in 1 position of time slot of SF0, obtains reference signal and connect
Receive power measurement values.1 position of time slot of SF0 actually refers to the 2nd time slot of the 1st subframe.
The moment is opened in TDD change-over switches, the secondary synchronization signal of 1 position of time slot of SF0 is measured, obtains secondary synchronization signal
Receive power.
(N-1) ms moment before UDSP intercepts primary synchronization signal, calculates the reception power of primary synchronization signal.
Due to there is the cell specific reference signal of configuration over each slot, thus can be to RSSI, received signal code
The measured values such as power are assessed, and judge the channel quality of TD-LTE patterns.
Other time slots other than TS0 and special time slot measure other parameters.
4th step, predetermined threshold value XdB, mobile terminal is by the power P of reference signal/pilot tone/PBCH signals of measurement
Compared with threshold value XdB, the operations such as subsequent switching are carried out.
In a preferred embodiment, frame structure and time slot proportion unit 602 include：
Second detection module, for being TD-LTE patterns when the first communication pattern, the second communication pattern is TD-SCDMA moulds
When formula, the regular time slots transfer point and special time slot transfer point of TD-LTE patterns are obtained, when the ascending time slot of TD-SCDMA patterns
It is corresponding before finding the regular time slots transfer point according to the regular time slots transfer point when descending time slot is 6-N to be N number of
At the time of as the test position, wherein 6 time slots of TD-SCDMA patterns do not include TS0 time slots and special time slot.
In a preferred embodiment, detection unit 603 includes：
Signal acquisition module, for using ((M+1) * 864+352) timeslice before the regular time slots transfer point as institute
Test position is stated, the Primary Common Control Physical Channel signal of TS0 time slots is received；
Using (M*864+352) timeslice before the regular time slots transfer point as the test position, downlink is intercepted
The downlink synchronous signal of synchronization time slot.
In an application scenarios, UE is in the connected state of TD-LTE patterns, and TD-SCDMA patterns are in Idle or DRX
State, UE carry out different inter-frequency measurement to TD-SCDMA patterns and include：
Step 1, the second detection module in frame structure and time slot proportion unit 602, the time slot for obtaining TD-LTE patterns are matched
Than including the position of the position of regular time slots transfer point and special time slot transfer point.Time slot alignment unit 601 executes time slot alignment
Operation, to confirm regular time slots transfer point.
Step 2, the second detection module in frame structure and time slot proportion unit 602, UE obtain TD-SCDMA patterns when
Gap matches, if having M ascending time slot after removing TS0 time slots and special time slot, there is 6-M descending time slot.
Step 3, according to the positions UDSP of the regular time slots of TD-LTE patterns, the signal acquisition module in detection unit 603,
On the corresponding frequency point of TD-SCDMA patterns, opens RF switch and be in reception state, measure including but not limited to following ginsengs
Number：
A, positions chip ((M+1) * 864+352) before the time where UDSP receive the PCCPCH letters on TS0 time slots
Number, calculate the measured value of its RSSI and RSCP etc..
TD-SCDMA bandwidth is 1.28MHz, to which each Chip corresponding times are 1/1.28e6s.
B, (M*864+352) chip before the time where UDSP start to receive signal, intercept the down-going synchronous of DwPTS
Signal calculates the power of Sync DL signals, judges TD-SCDMA channel status.
Step 4, preset power threshold, power of calculated RSSI, RSCP and Sync DL signals etc. with it is corresponding
Power threshold be compared, then execute switching etc. operation.
It is using the advantage after this programme：In the case that bimodulus coexists, different system is effectively reduced by using time slot alignment
The interference that cross time-slot between system is brought starts the measurement to another pattern after the alignment of bimodulus time slot, need not be special
Configuration be just able to detect that the various parameters under another pattern, ensure that when UE is in the first communication pattern, no matter
Two communication patterns are in Idle, DRX or connected state, can under the first communication pattern to the parameter of the second communication pattern into
Row measures.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of method for detecting other side's mode parameter in double-communication mode mutually, which is characterized in that method includes：
Mobile terminal is in the first communication pattern, executes the first communication pattern and carries out the behaviour that time slot is aligned with the second communication pattern
Make；
According to the frame structure of the first communication pattern and time slot proportion and the frame structure and time slot proportion of the second communication pattern, from
The regular time slots transfer point of first communication pattern extrapolates the inspection where the parameter that should be detected in the second communication mode
Location is set；
Start to detect the parameter in the inspection positions of the second communication pattern；
First communication pattern is TD-SCDMA patterns, and the second communication pattern is TD-LTE patterns；
Test position where extrapolating the parameter that should be detected from the regular time slots transfer point of first communication pattern, packet
It includes：
It determines and realizes the regular time slots transfer point that time slot is aligned in TD-SCDMA patterns with TD-LTE patterns, two patterns of guarantee
The UDSP alignment of regular time slots transfer point；The GP length for adjusting special subframe in TD-LTE patterns, provides DwPTS in special time slot,
The proportion relation of GP and UpPTS；
N number of subframe before extrapolating the regular time slots transfer point from the regular time slots transfer point belongs to the same TD-LTE
Field is the test position before the time in the TD-LTE fields and where regular time slots transfer point.
2. according to the method described in claim 1, it is characterized in that, the inspection positions in the second communication pattern start to examine
The parameter is surveyed, is specifically included：
The TDD change-over switches that TD-LTE patterns are arranged are reception state, receive the corresponding signal of at least one parameter.
3. according to the method described in claim 2, it is characterized in that, the TDD change-over switches of setting TD-LTE patterns are to receive shape
State receives the corresponding signal of at least one parameter, specifically includes：
N milliseconds before the time where the regular time slots transfer point open TDD switches, and physics is received in the time slot 1 of SF0
Broadcast channel signal or reference signal；
TDD switches are opened before the time where the regular time slots transfer point for N milliseconds, and auxiliary synchronization is obtained in the time slot 1 of SF0
Signal calculates the reception power of secondary synchronization signal；
TDD switches are opened before the time where the regular time slots transfer point for N-1 milliseconds, are obtained primary synchronization signal, are calculated
The reception power of primary synchronization signal.
4. according to the method described in claim 1, it is characterized in that, the first communication pattern is TD-LTE patterns, second communicates mould
Formula is TD-SCDMA patterns；
Test position where extrapolating the parameter that should be detected from the regular time slots transfer point of first communication pattern, packet
It includes：
The regular time slots transfer point and special time slot transfer point of TD-LTE patterns are obtained,
When the ascending time slot of TD-SCDMA patterns is M, and descending time slot is 6-M, according to the regular time slots transfer point, look for
As the test position at the time of corresponding before to the regular time slots transfer point, wherein 6 time slots of TD-SCDMA patterns
Not comprising TS0 time slots and special time slot.
5. according to the method described in claim 4, it is characterized in that, at the time of corresponding before finding the regular time slots transfer point
As the test position, including：
Using ((M+1) * 864+352) timeslice before the regular time slots transfer point as the test position, TS0 time slots are received
Primary Common Control Physical Channel signal；
Using (M*864+352) timeslice before the regular time slots transfer point as the test position, down-going synchronous is intercepted
The downlink synchronous signal of time slot.
6. a kind of mobile terminal, which is characterized in that including：
Time slot alignment unit is communicated for when mobile terminal is in the first communication pattern, executing the first communication pattern with second
Pattern carries out the operation of time slot alignment；
Frame structure and time slot proportion unit, for being communicated according to the frame structure and time slot proportion of the first communication pattern and second
The frame structure and time slot proportion of pattern；It is extrapolated from the regular time slots transfer point of first communication pattern in the second communication pattern
In test position where the parameter that should detect；
Detection unit, for starting to detect the parameter in the inspection positions of the second communication pattern；
Frame structure and time slot proportion unit include：
First detection module, for being TD-SCDMA patterns when the first communication pattern, when the second communication pattern is TD-LTE patterns,
It determines in TD-SCDMA patterns and realizes the regular time slots transfer point that time slot is aligned with TD-LTE patterns, ensure the routine of two patterns
The UDSP alignment of time slot transfer point；The GP length for adjusting special subframe in TD-LTE patterns, provides DwPTS in special time slot, GP and
The proportion relation of UpPTS；N number of subframe before extrapolating the regular time slots transfer point from the regular time slots transfer point belongs to
The same TD-LTE fields are the check bits before the time in the TD-LTE fields and where regular time slots transfer point
It sets.
7. mobile terminal according to claim 6, which is characterized in that detection unit includes：
First detection execution module, the TDD change-over switches for TD-LTE patterns to be arranged are reception state, receive at least one ginseng
The corresponding signal of number.
8. mobile terminal according to claim 7, which is characterized in that first, which detects execution module, further includes：
TDD switch control modules open TDD switches for the N milliseconds before the time where the regular time slots transfer point,
Physical Broadcast Channel signal or reference signal are received in the time slot 1 of SF0；
TDD switches are opened before the time where the regular time slots transfer point for N milliseconds, and auxiliary synchronization is obtained in the time slot 1 of SF0
Signal calculates the reception power of secondary synchronization signal；
TDD switches are opened before the time where the regular time slots transfer point for N-1 milliseconds, are obtained primary synchronization signal, are calculated
The reception power of primary synchronization signal.
9. mobile terminal according to claim 6, which is characterized in that frame structure and time slot proportion unit include：
Second detection module, for being TD-LTE patterns when the first communication pattern, when the second communication pattern is TD-SCDMA patterns,
Obtain TD-LTE patterns regular time slots transfer point and special time slot transfer point, when TD-SCDMA patterns ascending time slot be it is N number of,
When descending time slot is 6-N, according to the regular time slots transfer point, at the time of corresponding before finding the regular time slots transfer point
As the test position, wherein 6 time slots of TD-SCDMA patterns do not include TS0 time slots and special time slot.
10. mobile terminal according to claim 9, which is characterized in that detection unit includes：
Signal acquisition module, for using ((M+1) * 864+352) timeslice before the regular time slots transfer point as the inspection
Location is set, and the Primary Common Control Physical Channel signal of TS0 time slots is received；
Using (M*864+352) timeslice before the regular time slots transfer point as the test position, down-going synchronous is intercepted
The downlink synchronous signal of time slot.
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