CN105594296B - Mobile terminal and its antenna switching method - Google Patents
Mobile terminal and its antenna switching method Download PDFInfo
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- CN105594296B CN105594296B CN201380079445.7A CN201380079445A CN105594296B CN 105594296 B CN105594296 B CN 105594296B CN 201380079445 A CN201380079445 A CN 201380079445A CN 105594296 B CN105594296 B CN 105594296B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
- H04B7/0825—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with main and with auxiliary or diversity antennas
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
- H04B7/0817—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with multiple receivers and antenna path selection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
Abstract
A kind of mobile terminal and its antenna switching method, the mobile terminal support the first communication pattern and the second communication pattern standby simultaneously, and the antenna switching method includes：When first communication pattern is in connection status, when second communication pattern is in idle condition, the timing since the initial time that the downlink data of second communication pattern receives interval, when the downlink data of second communication pattern, which receives interval time, to be reached, diversity reception antenna is switched into the second communication pattern from the first communication pattern, with the reception for the second communication pattern downlink data；When the downlink data received duration of second communication pattern reaches, the diversity reception antenna is switched into the first communication pattern from the second communication pattern.The mobile terminal and its antenna switching method can reduce size of mobile terminals, reduce cost.
Description
Technical field
The present invention relates to a kind of methods that mobile communication technology more particularly to mobile terminal and its antenna switch.
Background technique
Long Term Evolution (LTE, Long Term Evolution) is that the new generation broadband wireless of international mainstream is mobile logical
Letter technology.The system design goal of the packet switch domain (PS, Packet Switched) optimization, the net of LTE are intended for based on LTE
Network framework no longer the discrimination circuit exchange domain (CS, Circuit Switched) and ps domain, using unified ps domain framework.New
Under LTE system framework, no longer support the traditional domain CS voice solution, the VoIP business of IMS control that will be used as future LTE net
Voice solution in network.
Since the performance indicator of current VoIP business fails the quality for reaching the voice service of the existing domain CS, and need the whole network
Dispose IP multimedia subsystem (IMS, IP Multimedia Subsystem), the deployment of LTE network and IMS network be by
The process of step.Therefore on the basis of existing network, three kinds of different voice solutions are formd：Based on double standby terminal side
Case, circuit domain dropping (CSFB, Circuit Switched FallBack) and voice (VoLTE, Voice based on LTE system
over LTE).CSFB and VoLTE is the LTE voice solution that 3GPP is defined.
In the current generation, double standby terminal scheme is a kind of relatively common mode.Double standby terminal can be standby simultaneously
In LTE network and 2G/3G network, and signal can be sended and received from LTE and 2G/3G network simultaneously, voice solves
The essence of scheme be using traditional 2G/3G network, it is unrelated with LTE.
In current double-standby mobile terminal, due to needing support communication, it is therefore desirable to more antennas, it is this
Double-standby mobile terminal has that volume is big, at high cost, design difficulty is big, this is because：
Due to needing while receiving LTE system signal and 2G/3G system signal, existing mobile terminal is at least needed to configure
3 antennas, wherein needing to configure 2 antennas for LTE system, for 1 antenna of 2G/3G system configuration.That is, opposite
In single-standby mobile terminal, the mobile terminal for having double standby ability needs to increase additional antenna, radio frequency chip, filter even
Baseband chip etc., and bigger research and development difficulty and longer R&D cycle are also brought simultaneously.
Summary of the invention
The embodiment of the present invention the technical problem to be solved is that how to reduce size of mobile terminals, reduce mobile terminal at
This.
To solve the above problems, the embodiment of the invention provides a kind of mobile terminal antenna switching method, it is described mobile whole
End supports the first communication pattern and the second communication pattern standby simultaneously, and the antenna switching method includes：
When first communication pattern is in connection status, and second communication pattern is in idle condition, from described
The initial time that the downlink data of second communication pattern receives interval starts timing, when the downlink data of second communication pattern
When receiving interval time arrival, diversity reception antenna is switched into the second communication pattern from the first communication pattern, to be used for second
The reception of communication pattern downlink data；
When the downlink data received duration of second communication pattern reaches, by the diversity reception antenna from the
Two communication pattern switchings to the first communication pattern.
Optionally, the type of the downlink data of second communication pattern includes at least two.
Optionally, the downlink data is the measurement data or paging message data of the second communication pattern cell.
Optionally, when the downlink data is the measurement data of the second communication pattern cell, second communication pattern
Downlink data receive interval time is determined by the cell measurement time of the second communication pattern cell, it is described second communicate mould
The downlink data received duration of formula is determined by the receiving time of the cell measurement data；
When the downlink data is the paging message data of the second communication pattern cell, under second communication pattern
Row data receiver interval time determines by the paging cycle of the second communication pattern cell, the downlink of second communication pattern
The data receiver duration is determined by the paging message receiving time of the cell.
Optionally, first communication pattern is LTE communication mode, and second communication pattern is 2G/3G communication pattern.
Optionally, the antenna switching method further includes：The antenna switching from the mobile terminal upper layer is received to refer to
When enabling, LTE physical layer modifies the antenna measurement configuration of downlink CPR measurement；LTE physical layer carries out under antenna measurement configuration
Downlink CPR measurement, generates the measurement result for being reported to network side；The measurement result is directed to more from network side receiving
After new configuration information, LTE physical layer, which updates, receives configuration, to adapt to the data-transmission mode of single antenna reception；LTE physical layer is adopted
The signal from network side is received with the reception configuration of the update；The mobile terminal upper layer is updated in the LTE physical layer
In the case where receiving configuration, the switching of the mobile terminal diversity reception antenna links scenarios is controlled.
Optionally, the switching of the control mobile terminal diversity reception antenna links scenarios, including：It is logical to control LTE
The signal that diversity reception antenna is interrupted under letter mode receives, and the diversity reception antenna is switched to 2G/3G communication pattern.
Optionally, the antenna measurement of the modification downlink CPR measurement, which configures, includes：The antenna measurement that downlink CPR is measured
Configuration is adjusted to 2TX/1RX or 1TX/1RX by 4TX/1RX or 2TX/1RX or 1TX/1RX.
Optionally, the progress downlink CPR measurement includes：The pilot signal for only receiving primary antenna, carrying out RI is 1 and day
Broadband and subband PMI and CQI measurement when line measuring configuration is 4TX/1RX or 2TX/1RX or 1TX/1RX.
Optionally, described measurement result is reported into network side to include：If CPR is given the correct time in periodicity, by the survey of CPR
Result is measured by PUCCH channel report network side.
Optionally, described measurement result is reported into network side to include：It is reported if it is aperiodicity, is receiving network
After the DCI instruction that side PDCCH channel carries, according to DCI instruction by after the measurement result of CPR and Traffic Channel group packet by
PUSCH channel report network side.
Optionally, the update, which receives to configure, includes：By decoding the DCI information of PDCCH channel, network side pair is obtained
The update configuration information of PDSCH is received according to the update configuration information update and is configured；To adapt to the PDSCH of single antenna reception
Transmission mode.
Optionally, the mobile terminal upper layer is when 2G/3G communication pattern idle state has issued circuit domain calling service
Send the antenna switching command；After the switching for controlling the mobile terminal diversity reception antenna links scenarios, in circuit domain
Circuit domain calling service is initiated using the diversity reception antenna after the switching in communication network.
Optionally, received in receive process under 2G/3G communication pattern idle state 2G/3G cell paging message it
Afterwards, the mobile terminal upper unit issues antenna switching command to the LTE physical layer；Controlling the mobile terminal diversity
After the switching of receiving antenna connection type, in 2G/3G cell response circuit domain called service.
When needing 2G/3G location area updating, the mobile terminal upper layer issues antenna switching to the LTE physical layer and refers to
It enables；After the switching for controlling the mobile terminal diversity reception antenna links scenarios, industry is updated in the cell launch position area 2G/3G
Business.
To solve the above problems, the mobile terminal supports first the embodiment of the invention also provides a kind of mobile terminal
Communication pattern and the second communication pattern are standby simultaneously, which is characterized in that the mobile terminal includes：Timing unit, the first switching
Unit and the second switch unit, wherein：
The timing unit is in connection status in first communication pattern for the mobile terminal, and described second
When communication pattern is in idle condition, counted since the initial time that the downlink data of second communication pattern receives interval
When, and when the downlink data of second communication pattern receives interval time and reaches, trigger first switch unit；From institute
State the second communication pattern downlink data start receive when from, when the downlink data received duration of second communication pattern
When arrival, the second switch unit is triggered；
First switch unit, for diversity reception antenna to be switched to the second communication pattern from the first communication pattern,
With the reception for the second communication pattern downlink data；
Second switch unit, for diversity reception antenna to be switched to the first communication pattern from the second communication pattern.
Optionally, the type of the downlink data of second communication pattern includes at least two.
Optionally, the downlink data is the measurement data or paging message data of the second communication pattern cell.
Optionally, first communication pattern is LTE communication mode, and second communication pattern is 2G/3G communication pattern.
Optionally, the mobile terminal includes：Terminal upper unit, LTE physical layer element and antenna switching unit,
In：
The LTE physical layer element, for when receiving the antenna switching command for carrying out self terminal upper unit, under modification
The antenna measurement of row CPR measuring unit configures, and the downlink CPR measurement result generated under antenna measurement configuration is reported to
Network side；After receiving the update configuration information from network side, updates and receive configuration；
The terminal upper unit, for controlling antenna switching in the case where the LTE physical layer updates and receives configuration
The switching of unit progress terminal antenna connection type.
Optionally, the LTE physical layer element includes：LTE physical layer control unit, LTE downlink CPR measuring unit and
LTE physical layer receiving unit, wherein：
The LTE physical layer control unit, for repairing when receiving the antenna switching command for carrying out self terminal upper unit
Change the antenna measurement configuration of LTE downlink CPR measuring unit；After receiving the update configuration information from network side, institute is controlled
It states LTE physical layer receiving unit and updates reception configuration；
The LTE downlink CPR measuring unit, for carrying out downlink CPR measurement under antenna measurement configuration, in generation
Offer the measurement result of network side；
The LTE physical layer receiving unit receives the signal from network side for configuring according to the reception of the update.
As it can be seen that when the mobile terminal is in connection status in first communication pattern, at second communication pattern
When idle state, the timing since the initial time that the downlink data of second communication pattern receives interval passes through monitoring
The downlink data of second communication pattern receives interval time and downlink data received duration, and in second communication pattern
Downlink data receive interval time reach when, diversity reception antenna is switched into the second communication pattern from the first communication pattern,
With the reception for the second communication pattern downlink data；It is reached in the downlink data received duration of second communication pattern
When, the diversity reception antenna is switched into the first communication pattern from the second communication pattern, thus realize the first communication pattern and
Second communication pattern shares an antenna, therefore can reduce the quantity of antenna, so as to save cost, while to move
The R&D cycle more more easily, so as to reduce design difficulty, shortens in the placement-and-routing of circuit board terminal.
Further, when antenna switching occurs, by the configuration of modification mobile terminal, and pass through and network top-cross
Mutually, the variation of data transfer mode is realized, it can be ensured that mobile communication business is gone on smoothly.
Detailed description of the invention
Fig. 1 is the flow chart of mobile terminal antenna switching method in the embodiment of the present invention；
Fig. 2 is the flow chart of mobile terminal antenna switching method in the embodiment of the present invention；
Fig. 3 is that mobile terminal is in PS connection status in the embodiment of the present invention, and GSM when GSM is in idle condition is received
Time interval schematic diagram；
Fig. 4 is the flow chart of mobile terminal antenna switching method in the embodiment of the present invention；
When Fig. 5 is that mobile terminal is in the PS connection status of LTE communication mode in the embodiment of the present invention, it is logical to initiate 2G/3G
The flow chart of antenna switching method when the CS calling service of letter mode；
When Fig. 6 is that mobile terminal is in the PS connection status of LTE communication mode in the embodiment of the present invention, realize that 2G/3G is logical
The flow chart of antenna switching method when the circuit domain called service of letter mode；
When Fig. 7 is that mobile terminal is in the PS connection status of LTE communication mode in the embodiment of the present invention, realize that 2G/3G is logical
The flow chart of antenna switching method when the location area updating of letter mode；
Fig. 8 is the structural schematic diagram of mobile terminal in the embodiment of the present invention；
Fig. 9 is the structural schematic diagram of mobile terminal in the embodiment of the present invention；
Figure 10 is the structural schematic diagram of mobile terminal in the embodiment of the present invention.
Specific embodiment
In the embodiment of the present invention, for the mobile terminal standby simultaneously with plurality of communication schemes, to solve its movement eventually
The problem for holding volume big, at high cost, design difficulty is big reduces mobile terminal by the way of different communication modes common antenna
Antenna amount.Also, further monitoring is made to communication network, common antenna is switched to different lead in the suitable time
Letter mode.
It is understandable to enable the above objects, features, and advantages of the embodiment of the present invention to become apparent, it is right with reference to the accompanying drawing
Specific embodiments of the present invention are described in detail.
In the embodiment of the present invention, the mobile terminal supports the first communication pattern and the second communication pattern standby, institute simultaneously
It states the first communication pattern and the second communication pattern shares diversity reception antenna.It is moved in the embodiment of the present invention shown in referring to Fig.1
The flow chart of terminal antenna switching method, when first communication pattern is in connection status, second communication pattern is in
When idle state, the mobile terminal antenna switching method be may comprise steps of：
S101, the timing since the initial time that the downlink data of second communication pattern receives interval, when described the
When the downlink data of two communication patterns receives interval time arrival, diversity reception antenna is switched to second from the first communication pattern
Communication pattern, with the reception for the second communication pattern downlink data.
S102, since being received the downlink data of second communication pattern, when under second communication pattern
When row data received duration reaches, the diversity reception antenna is switched into the first communication pattern from the second communication pattern.
Using above scheme, the mobile terminal is in connection status, and second mould in first communication pattern
When formula is in idle condition, when receiving interval by the reception duration and downlink data that obtain the second communication pattern downlink data
Between, and when receiving interval time arrival, the diversity reception antenna for being used for the first communication pattern is switched into the second communication pattern,
For the reception of the second communication pattern downlink data, when downlink data received duration reaches, then from the second communication pattern
The first communication pattern is switched back into, the mobile terminal can be realized in first communication pattern and be in connection status, described
When two communication patterns are in idle condition, two kinds of communication patterns are supported using a diversity reception antenna, therefore day can be reduced
Line number amount, and then size of mobile terminals can be reduced, save the cost shortens the R&D cycle.
It in specific implementation, can be true according to the configuration of the agreement and the second communication pattern cell of the second communication pattern
Downlink data receives the initial time at interval when the fixed second communication pattern idle state, and can be continuous according to synchronizing information
Adjustment.Downlink data receives the reception interval time that interval time is downlink data, and received duration is connecing for downlink data
Receive the duration.
In specific implementation, the type of the downlink data of second communication pattern can there are many, for example, can be the
The measurement data of two communication mode cells, or the paging message data of the second communication pattern cell.
When the downlink data is the measurement data of the second communication pattern cell, the lower line number of second communication pattern
It is determined according to interval time is received by the cell measurement time of the second communication pattern cell, the downlink of second communication pattern
The data receiver duration is determined by the receiving time of the cell measurement data.When the downlink data is the second communication pattern
When the paging message data of cell, the downlink data of second communication pattern receives interval time by second communication pattern
The paging cycle of cell determines, the downlink data received duration of second communication pattern by the cell paging message
Receiving time determines.
Wherein, first communication pattern can be 4G communication pattern, such as LTE communication mode, including but not limited to FDD-
LTE, TDD-LTE etc..Second communication pattern can be 2G/3G communication pattern, including but not limited to GSM, WCDMA,
CDMA2000 and TD-SCDMA etc..
As an example, in the double standby terminal specification of current China Communications Standards Association (CCSA), first is logical
Letter mode and the second communication pattern specifically include following several：
TD-LTE/TD-SCDMA/GSM (GPRS) the multimode bilateral terminal type 1 defined for CCSA, the first communication pattern
Refer to that TD-LTE communication pattern, the second communication pattern refer to TD-SCDMA/GSM (GPRS) mode；
TD-LTE/TD-SCDMA/GSM (GPRS) the multimode bilateral terminal type 2 defined for CCSA, the first communication pattern
Refer to that TD-LTE/TD-SCDMA communication pattern, the second communication pattern refer to GSM (GPRS) mode；
TD-LTE/LTE FDD/TD-SCDMA/WCDMA/GSM (GPRS) the multimode bilateral terminal type defined for CCSA
1, the first communication pattern refers to that TD-LTE/LTE-FDD communication pattern, the second communication pattern 2 refer to TD-SCDMA/GSM
(GPRS)/WCDMA mode；
TD-LTE/LTE FDD/TD-SCDMA/WCDMA/GSM (GPRS) the multimode bilateral terminal type defined for CCSA
2, the first communication pattern refers to that TD-LTE/LTE-FDD/TD-SCDMA communication pattern, the second communication pattern refer to GSM
(GPRS)/WCDMA mode.
It is logical with first here referring to the flow chart of mobile terminal antenna switching method in the embodiment of the present invention shown in Fig. 2
Letter mode be LTE communication mode, the second communication pattern be gsm communication mode for be illustrated.
Mobile terminal is in LTE communication mode PS connection status, when gsm communication mode idle state, carries out to GSM network
Monitoring, to receive GSM cell measurement message and paging message.Two antennas are used since LTE is received：A piece primary antenna and one
Diversity antenna, not extra antenna are monitored for the data of gsm communication mode, to solve this problem, when one section
Between, by diversity reception antenna from LTE communication pattern switching to gsm communication mode, specific step is as follows：
S201, mobile terminal are in PS connection status in LTE communication mode, when gsm communication mode is in idle condition,
Obtain the downlink data timing receipt initial time T under the gsm communication modestart, receive interval time TintervalAnd reception
Duration Treceive。
In specific implementation, the downlink data can be there are many type, in the present embodiment, for ease of description, by different
The message of type is grouped.Such as one group is measurement message, another group is paging message data.For each group of downlink data
Its available corresponding timing receipt initial time Tstart, receive interval time TintervalAnd received duration
Treceive, for convenience of description, timing receipt initial time T is used herestart[n] receives interval time Tinterval[n] and reception are held
Continuous time Treceive[n] is indicated, wherein n is integer, and n=0~N-1, N are received group of number of GSM cell downlink data,
Middle n=0 indicates measurement data, and n=1 indicates paging message data.Mobile terminal as shown in Figure 3 is in PS connection status, GSM
GSM receiving time interval schematic diagram when being in idle condition.
For the downlink data of gsm communication mode, measurement data and paging message data including cell.For measuring number
According to Tinterval[0] indicate that broadcast control channel (Broadcast Control Channel, BCCH) BCCH is initially received, received
Signal strength (Received Signal Strength Indicator, RSSI) measurement, initial base station identification code (Base
Station Identification Code, BSIC) identify, BSIC confirm concurrent data group received interval time again, this
In embodiment, Tinterval[0]=240ms.By taking the GSM cell of common configuration as an example, BCCH initially received, rssi measurement, initial
BSIC identifies, BSIC confirms concurrent data group received duration T againreceive[0]=6ms.For connecing for paging message data
It receives, as can accurately determine GSM cell paging group locating for mobile terminal and with paging by the systematic survey information of cell
Position where the common control channel (CCCH) of group in multi-frame, the minimum period of GSM paging are 2 multi-frames, i.e., 2x51 frame=
471ms, therefore can be by accurate timing, using 471ms as the period, each receiving time is that the scheme of 6ms is received, i.e.,
Tinterval[1]=471ms, Treceive[1]=6ms.
S202 receives the initial time T at interval from the downlink data of gsm communication modestartStart timing, as the GSM
The downlink data of communication pattern receives interval time TintervalWhen arrival, by diversity reception antenna from LTE communication pattern switching to
Gsm communication mode, with the reception for gsm communication mode downlink data.
In specific implementation, is received for downlink data interval time, timing unit can be set and carry out timing.For example,
For measurement data receiving time interval, first timer is set, when first timer timing length reaches Tinterval[0]=
When 240ms, the diversity reception antenna of LTE communication mode is switched into the reception that gsm communication mode is used as measurement data.Setting the
Two timers, when second timer timing length reaches TintervalWhen [1], the diversity reception antenna of LTE communication mode is switched
Make the reception of downlink page message data to gsm communication mode.
S203, since being received the downlink data of the gsm communication mode, when the downlink of the gsm communication mode
Data receiver duration TreceiveWhen arrival, by the diversity reception antenna from gsm communication pattern switching to LTE communication mould
Formula.
In specific implementation, for downlink data received duration, timing unit equally can be set and carry out timing, example
Such as, third timer is set, when third timer timing length reaches Treceive[0], gsm communication mode is measured as downlink
The reception diversity reception antenna of data switches to LTE communication mode.4th timer is set, when the 4th timer timing length reaches
To Treceive[1], the received diversity reception antenna that gsm communication mode is used as downlink page message data LTE is switched to lead to
Letter mode.
Using above scheme, continue 6ms since GSM is received, and LTE physical layer hybrid automatic repeat-request (Hybrid
Automatic Repeat Request, HARQ) retransmit time interval be at least 5ms, therefore in GSM receiving time at most
Involve 6 HARQ procedures, and each HARQ procedure can only be missed once due to antenna switch reasons, restore it to LTE antenna
HARQ ready to receive retransmits data afterwards, merges decoding, although therefore all in all antenna switches and will cause physical layer error code
Rate rises, but due to there is HARQ retransmission mechanism, not will cause rrc layer bursts dropping ratio and significantly rise.
When LTE communication mode is time division duplex LTE (TDD-LTE) communication pattern, if the downlink reception of GSM is fallen just
In the sub-frame of uplink of LTE, LTE system would not be had an impact.During the sub-frame of uplink of the LTE, diversity reception antenna can
With the measurement for GSM cell, can receive BSIC, cannot only receive broadcast channel (Broadcast Channel,
BCH) and paging channel (Paging Indicator Channel, PCH) data, to solve this problem, mobile terminal can be with
The time slot (GAP) of very little is only used, is such as 6ms for gsm communication mode, for receiving BCH and PCH data, mainly PCH.
By analyzing above it is found that for gsm communication mode, need to use the 6ms time when being spaced 240ms and 471ms
It is received, caused LTE physical layer Block Error Rate rises to：(6+6)/(240+471)=1.6%.Therefore to LTE business shadow
Very little is rung, but the use of antenna, save the cost can be reduced, while reducing mobile terminal design difficulty, shortens the R&D cycle.
It is understood that in specific implementation, the initial time at interval is received for every group of downlink data, it can basis
Synchronization message constantly adjusts, to updating T after the downlink reception data synchronization processing of the second communication patternstart[n]、Tinterval[n]
And Treceive[n] can restart timing to each timer, be in connection in the first communication pattern of the mobile terminal
State, will be described point according to the cell measurement and paging cycle of the second communication pattern when the second communication pattern is in idle condition
Collection receiving antenna periodically switches to the second communication pattern, to monitor the service condition of second communication pattern, and takes phase
The operation answered.
In specific implementation, when first communication pattern is in connection status, if the second communication pattern has business
Occur, for example, the second communication pattern has caller or called service or the second communication pattern cell to have location updating,
The diversity reception antenna can be switched into the second communication pattern from the first communication pattern.It is still in the first mode of communication LTE
Communication pattern, the second communication pattern be 2G/3G communication pattern for be described in detail：
It has been investigated that can be generated when the reception of LTE communication mode becomes 1 antenna from 2 antennas to communication quality
It influences below：
For Physical Downlink Control Channel (Physical Downlink Control Channel, PDCCH), physics control
The control channels such as format indication channel (Physical Control Format Indicator Channel, PCFICH) processed and
Speech, when the CS business of GSM occurs, mobile terminal physical layer can adjust the reception of control channel according to system command, due to
Control channel uses transmitting diversity, and after receiving antenna becomes one, antenna reception scheme becomes 2TX/1RX from 2TX/2RX, only
It is to receive diversity gain without signal-to-noise ratio (Signal Noise Ratio, SNR) has under 3~5db according to multi-path environment
Drop.
For Physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH) multiple-input, multiple-output
(Multiple Input Multiple Output, MIMO) transmission is become leading after 1 antenna receives from 2 antenna receptions
It causes two transmission blocks (Transport Block, TB) of PDSCH channel to interfere each other, a large amount of error codes occurs；For other
For the transmission mode of PDSCH, receiving antenna become 1 from 2 after without diversity gain, SNR has 3 according to multi-path environment
The decline of~5db also will appear error code since LTE base station still keeps original encoding modulator approach.
For above-mentioned transmission quality problem, the embodiment of the present invention proposes a kind of new processing mode.Specifically, logical in LTE
When letter mode is in PS connection status, mobile terminal initiates 2G/3G CS calling service, the called industry of response CS if necessary to parallel
When being engaged in or do the domain CS location area updating, by certain treatment process so that LTE network side by the PDSCH channel of LTE system by
Receiving the transmission mode Dispatching adjustment under diversity or mimo channel is the transmission mode adapted under single antenna reception, mobile later whole
Diversity reception antenna is stopped using at end under LTE communication mode, it is switched to 2G/3G communication pattern completely as sending and receiving day
Line.
Referring to the flow chart of mobile terminal antenna switching method shown in Fig. 4, here mobile terminal by with network side into
The switching for the diversity reception antenna that LTE communication mode and 2G/3G communication pattern are shared is realized in row interaction, and specific step is as follows：
S401, when receiving from the antenna switching command on the mobile terminal upper layer, LTE physical layer modifies downlink CPR
The antenna measurement of measurement configures.
S402, LTE physical layer carry out downlink CPR measurement under antenna measurement configuration, and generation is reported to network side
Measurement result.
S403, after receiving the update configuration information from network side for the measurement result, LTE physical layer updates
Configuration is received, to adapt to the data-transmission mode of single antenna reception.
S404, LTE physical layer receive the signal from network side using the reception configuration of the update.
S405, the mobile terminal upper layer control the movement in the case where the LTE physical layer updates and receives configuration
The switching of diversity reception antenna of terminal connection type.
Since when carrying out the switching of diversity reception antenna, the mobile terminal is interacted with LTE network in time, so that
LTE network side timely updates configuration information, adapts to the data-transmission mode of single antenna reception, therefore can reduce error code, enhances
Service transmission performance.
In an embodiment of the present invention, mobile terminal LTE communication mode uses two antennas：First antenna (primary antenna)
With the second antenna (diversity reception antenna), 2G/3G communication pattern and the LTE communication mode share the second antenna, below by way of
Several specific business scenarios are illustrated：
Referring to Fig. 5, when mobile terminal is in the PS connection status of LTE communication mode, the CS of 2G/3G communication pattern is initiated
Calling service, detailed process are as follows：
S501, terminal upper unit issue antenna switching command, and LTE physical layer modifies the antenna of downlink CPR measuring unit
Measuring configuration.
Mobile terminal upper unit issues antenna switching command, LTE physical layer control unit to LTE physical layer control unit
The antenna measurement of LTE downlink CPR (CQI, PMI, RI) measuring unit is configured by original 4TX/2RX or 2TX/2RX or 1TX/
2RX is adjusted to 4TX/1RX or 2TX/1RX or 1TX/1RX.
S502 is configured according to the antenna measurement, carries out downlink CPR measurement.
The pilot signal that downlink CPR measuring unit only receives first antenna (primary antenna) carries out CPR measurement, therefore, downlink
CPR measuring unit sets 1 for order instruction (Rank Indicator, RI), and carrying out RI is that 1 and antenna measurement are configured to
Broadband and subband pre-coding matrix instruction (Pre-coding Matrix when 4TX/1RX or 2TX/1RX or 1TX/1RX
Indicator, PMI) and channel quality instruction (Channel Quality Indicator, CQI) measurement.
Measurement result is reported to network side by S503.
If CPR is given the correct time in periodicity at this time, by the measurement result of CPR by PUCCH channel report network side (base station)；
It is reported if it is aperiodicity, the DCI instruction for waiting network side PDCCH channel to carry, by the measurement result and Traffic Channel of CPR
By Physical Uplink Shared Channel (Physical Uplink Shared Channel, PUSCH) reporting base station after group packet.
In one kind in the specific implementation, reporting mode for aperiodic, base station indicates mobile terminal in downlink PDCCH DCI
PMI/CQI/RI is reported, above calls time and is determined by base station, in the test case of 3GPP, mobile terminal is every 1ms on base station
The measurement result of CPR is reported, base station scheduling delay is 10ms.
For periodically reporting mode, report cycle is appointed with mobile terminal in advance in base station, to time point mobile terminal
Report PMI/CQI/RI.It gives the correct time on broadband, general CQI/PMI report cycle is 8 frames (Frame)=80ms, and RI report cycle is 4
× 8Frame=320ms；CQI/PMI report cycle is 16Frame=160ms under extreme case, and it is 32 that RI, which reports the time cycle,
× 16Frame=5.12s.So mobile terminal generally can be obtained by the new PDSCH configuration in base station in 1s, extreme case can
There can be 5~6s.
S504 adjusts data transfer mode according to the information from network side.
LTE physical layer receiving unit keeps primary antenna configuration and physical layer control channel PCFICH/PDCCH, physical broadcast
Channel (Physical Broadcast Channel, PBCH) and PHICH, the reception pattern of Traffic Channel PDSCH wait LTE
Base station adapts to single antenna according to the CPR measurement result scheduling being used only when first antenna (primary antenna) receives that step S503 is reported
Received PDSCH transmission mode.
Specifically, LTE physical layer element obtains base station and matches to the update of PDSCH by decoding the DCI information of PDCCH channel
Confidence breath, updates the configuration of LTE physical layer receiving unit after the processing of LTE physical layer control unit, and the configuration is whole with movement
End is matched in LTE communication mode using the wireless transmission environments of 1 receiving antenna.
Second antenna is switched to the second communication pattern by S505.
The upper unit of mobile terminal controls the signal reception that diversity reception antenna is interrupted under the first communication pattern, by the day
Line is switched to 2G/3G communication pattern.
S506, mobile terminal initiate CS domain business in 2G/3G cell.
CPR may be waited to report the moment with step S502 it will be understood by those skilled in the art that duration is established in caller
Base station scheduling delay is waited with LTE communication mode in step S503 and is increased, it is general to increase within 1s, it is acceptable.
Referring to Fig. 6, when mobile terminal is in the PS connection status of LTE communication mode, the circuit of 2G/3G communication pattern is realized
Domain called service, specific process flow are as follows：
S601, mobile terminal received in receive process under 2G/3G idle state 2G/3G cell paging message it
Afterwards, mobile terminal upper unit issues antenna switching command to LTE physical layer control unit.
Step S501 to S505 in S601 to S605, with specific real-time mode shown in fig. 5 is essentially identical, this does not go to live in the household of one's in-laws on getting married
It states.
S606, mobile terminal respond the domain CS called service in 2G/3G cell.
Referring to Fig. 7, realizing the position of 2G/3G communication pattern when mobile terminal is in the PS connection status of LTE communication mode
Area's update is set, specific process flow is as follows：
S701, mobile terminal need to carry out 2G/3G location area updating, and mobile terminal upper unit is controlled to LTE physical layer
Unit issues antenna switching command.
It will be understood to those skilled in the art that mobile terminal need the scene for carrying out 2G/3G location area updating include but
It is not limited to：It carries out periodical location area update or mobile terminal measures discovery in 2G/3G net under 2G/3GIDLE state
The position area edge of network.
Step S501 to S505 in S701 to S705, with specific real-time mode shown in fig. 5 is essentially identical, this does not go to live in the household of one's in-laws on getting married
It states.
S706, mobile terminal is in 2G/3G cell launch position area more new business.
The embodiment of the invention also provides the corresponding mobile terminals of above-mentioned mobile terminal antenna switching method, referring to Fig. 8 institute
The structural schematic diagram of the mobile terminal shown, the mobile terminal support the first communication pattern and the second communication pattern standby simultaneously,
The mobile terminal includes：Timing unit 801, the first switch unit 802 and the second switch unit 803, wherein：
Timing unit 801 is in connection status in first communication pattern for the mobile terminal, and described second is logical
When letter mode is in idle condition, the timing since the initial time that the downlink data of second communication pattern receives interval,
And when the downlink data of second communication pattern receives interval time and reaches, first switch unit 802 is triggered；From institute
State the second communication pattern downlink data start receive when from, when the downlink data received duration of second communication pattern
When arrival, the second switch unit 803 is triggered；
First switch unit 802, for diversity reception antenna to be switched to the second communication pattern from the first communication pattern, with
Reception for the second communication pattern downlink data；
Second switch unit 803, for diversity reception antenna to be switched to the first communication pattern from the second communication pattern.
It is understood that a timing unit can also be respectively provided with for each timing cycle, in corresponding timing cycle
When arrival, corresponding antenna switching unit is controlled by each timing unit respectively and carries out antenna switching.And the first switching list
Member 802 and the second switch unit 801 also can integrate as an antenna switching unit, and when corresponding timing cycle reaches,
Another communication pattern is switched to from a kind of communication pattern to diversity reception antenna.
For example, antenna switching unit can be a switch, the structural schematic diagram of mobile terminal as shown in Figure 9 is described
Mobile terminal includes：Antenna combination 91, antenna switching unit 92 and communication unit 93, wherein：
Antenna combination 91 includes first antenna 911 and the second antenna 912.Communication unit 93 may include baseband processing unit
931, first mode radio frequency unit 932 and second mode radio frequency unit 933, the first mode radio frequency unit 932 and the second mould
Formula radio frequency unit 933 supports the first communication pattern and the second communication pattern respectively, and first antenna 911 can be used as first mode and penetrate
The primary antenna of frequency unit 932, the second antenna 912 are diversity reception antenna, first mode radio frequency unit 932 and second mode radio frequency
Unit 933 shares the second antenna 912.
In specific implementation, the timing unit can be set in the baseband processing unit 931, when timing arrives
Up to when, communication unit 93 can directly control antenna switching unit and switch over.
In specific implementation, the type of the downlink data of second communication pattern includes at least two.For example, lower line number
According to the measurement data that can be the second communication pattern cell, or paging message data.
First communication pattern can be LTE communication mode, and second communication pattern can communicate mould for 2G/3G
Formula, for example, gsm communication mode.
In specific implementation, the structural schematic diagram of mobile terminal shown in 0, mobile terminal can also include referring to Fig.1：On
Layer unit 10, LTE physical layer element 20 and antenna switching unit 30.The LTE physical layer element 20 may include LTE physical layer
Control unit 201, LTE downlink CPR measuring unit 202, LTE physical layer receiving unit 203, wherein：
LTE physical layer control unit 201, for when receiving the antenna switching command for carrying out self terminal upper unit 10,
Modify the antenna measurement configuration of LTE downlink CPR measuring unit 202；After receiving the update configuration information from network side, control
It makes the LTE physical layer receiving unit 203 and updates reception configuration；
LTE downlink CPR measuring unit 202, for carrying out CPR measurement under antenna measurement configuration, generation is reported to
The measurement result of network side；
The LTE physical layer receiving unit 203 receives the letter from network side for configuring according to the reception of the update
Number；
The terminal upper unit 10 is used in the case where the LTE physical layer receiving unit 203 updates and receives configuration,
Control the switching that antenna switching unit 30 carries out antenna links scenarios.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage
Medium may include：ROM, RAM, disk or CD etc..
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (12)
1. a kind of mobile terminal antenna switching method, the mobile terminal supports the first communication pattern and the second communication pattern simultaneously
Standby, first communication pattern is LTE communication mode, and second communication pattern is 2G/3G communication pattern, and the antenna is cut
The method of changing includes：
When first communication pattern is in connection status, and second communication pattern is in idle condition, from described second
The initial time that the downlink data of communication pattern receives interval starts timing, when the downlink data of second communication pattern receives
When interval time reaches, diversity reception antenna is switched into the second communication pattern from the first communication pattern, for the second communication
The reception of mode downlink data；
When the downlink data received duration of second communication pattern reaches, the diversity reception antenna is led to from second
Believe pattern switching to the first communication pattern；
Wherein, described that the diversity reception antenna is switched into the first communication pattern from the second communication pattern, including：It receives and
When from the antenna switching command on the mobile terminal upper layer, LTE physical layer modifies the antenna measurement configuration of downlink CPR measurement；LTE
Physical layer carries out downlink CPR measurement under antenna measurement configuration, and measurement result is reported to network side；Come receiving
After automatic network side is for the update configuration information of the measurement result, LTE physical layer, which updates, receives configuration, is connect with adapting to single antenna
The data-transmission mode of receipts；LTE physical layer receives the signal from network side using the reception configuration of the update；The movement
Terminal upper layer controls the mobile terminal diversity reception antenna connection in the case where the LTE physical layer updates and receives configuration
The switching of mode；
The downlink data is the measurement data or paging message data of the second communication pattern cell；To second communication pattern
Downlink data processing after, update the downlink data and receive interval time and downlink data received duration, to adapt to list
The received data-transmission mode of antenna；And when updating every time, when determining that the downlink data receives interval using following steps
Between and downlink data received duration：
When the downlink data is the measurement data of the second communication pattern cell, the downlink data of second communication pattern is connect
Receive interval time determined by the cell measurement time of the second communication pattern cell, the downlink data of second communication pattern
Received duration is determined by the receiving time of the cell measurement data；When the downlink data is the second communication pattern cell
Paging message data when, the downlink data of second communication pattern receives interval time by the second communication pattern cell
Paging cycle determine that the downlink data received duration of second communication pattern is received by the paging message of the cell
Time determines.
2. mobile terminal antenna switching method as described in claim 1, which is characterized in that the control mobile terminal point
Collect the switching of receiving antenna connection type, including：The signal reception that diversity reception antenna is interrupted under LTE communication mode is controlled, it will
The diversity reception antenna is switched to 2G/3G communication pattern.
3. mobile terminal antenna switching method as described in claim 1, which is characterized in that the modification downlink CPR measurement
Antenna measurement configures：The antenna measurement that downlink CPR is measured is configured and is adjusted to by 4TX/1RX or 2TX/1RX or 1TX/1RX
2TX/1RX or 1TX/1RX.
4. mobile terminal antenna switching method as described in claim 1, which is characterized in that the progress downlink CPR measurement packet
It includes：The pilot signal for only receiving primary antenna, carrying out RI is that 1 and antenna measurement are configured to 4TX/1RX or 2TX/1RX or 1TX/
Broadband and subband PMI and CQI measurement when 1RX.
5. mobile terminal antenna switching method as described in claim 1, which is characterized in that described that measurement result is reported to net
Network side includes：If CPR is given the correct time in periodicity, by the measurement result of CPR by PUCCH channel report network side.
6. mobile terminal antenna switching method as described in claim 1, which is characterized in that described that measurement result is reported to net
Network side includes：It is reported if it is aperiodicity, after receiving the DCI instruction of network side PDCCH channel carrying, according to described
DCI instruction by after the measurement result of CPR and Traffic Channel group packet by PUSCH channel report network side.
7. mobile terminal antenna switching method as described in claim 1, which is characterized in that the update receives configuration and includes：
By decoding the DCI information of PDCCH channel, network side is obtained to the update configuration information of PDSCH, confidence is matched according to described update
Breath, which updates, receives configuration；To adapt to the PDSCH transmission mode of single antenna reception.
8. mobile terminal antenna switching method as described in claim 1, which is characterized in that the mobile terminal upper layer is in 2G/
3G communication pattern idle state sends the antenna switching command when having issued circuit domain calling service；It is described mobile whole controlling
After the switching for holding diversity reception antenna links scenarios, the diversity reception antenna after the switching is utilized in circuit domain communication network
Initiate circuit domain calling service.
9. mobile terminal antenna switching method as described in claim 1, which is characterized in that in 2G/3G communication pattern free time shape
After the paging message for receiving 2G/3G cell under state in receive process, the mobile terminal upper unit is to the LTE physics
Layer sending antenna switching command；After the switching for controlling the mobile terminal diversity reception antenna links scenarios, in 2G/3G cell
Response circuit domain called service.
10. mobile terminal antenna switching method as described in claim 1, which is characterized in that needing 2G/3G location area updating
When, the mobile terminal upper layer issues antenna switching command to the LTE physical layer；Controlling the mobile terminal diversity reception
After the switching of antenna links scenarios, in 2G/3G cell launch position area more new business.
11. a kind of mobile terminal, the mobile terminal supports the first communication pattern and the second communication pattern standby, feature simultaneously
It is, first communication pattern is LTE communication mode, and second communication pattern is 2G/3G communication pattern, described mobile whole
End includes：Timing unit, terminal upper unit, LTE physical layer element and antenna switching unit, the antenna switching unit packet
It includes：First switch unit and the second switch unit, wherein：
The timing unit is in connection status, second communication in first communication pattern for the mobile terminal
When mode is in idle condition, the timing since the initial time that the downlink data of second communication pattern receives interval, and
When the downlink data of second communication pattern, which receives interval time, to be reached, first switch unit is triggered；From described
From when the downlink data of two communication patterns starts to receive, when the downlink data received duration of second communication pattern reaches
When, trigger the second switch unit；
First switch unit, for diversity reception antenna to be switched to the second communication pattern from the first communication pattern, with
In the reception of the second communication pattern downlink data；
Second switch unit, for diversity reception antenna to be switched to the first communication pattern from the second communication pattern；
The LTE physical layer element, for modifying downlink when receiving the antenna switching command for carrying out self terminal upper unit
The antenna measurement of CPR measuring unit configures, and the downlink CPR measurement result generated under antenna measurement configuration is reported to net
Network side；After receiving the update configuration information from network side, updates and receive configuration；
The terminal upper unit, for controlling the antenna switching in the case where the LTE physical layer updates and receives configuration
The switching of unit progress terminal antenna connection type；
Wherein, the downlink data is the measurement data or paging message data of the second communication pattern cell；It is logical to described second
After the downlink data processing of letter mode, updates the downlink data and receive interval time and downlink data received duration, with
Adapt to the data-transmission mode of single antenna reception；And when updating every time, determine that the downlink data receives using following steps
Interval time and downlink data received duration：
When the downlink data is the measurement data of the second communication pattern cell, the downlink data of second communication pattern is connect
Receive interval time determined by the cell measurement time of the second communication pattern cell, the downlink data of second communication pattern
Received duration is determined by the receiving time of the cell measurement data；When the downlink data is the second communication pattern cell
Paging message data when, the downlink data of second communication pattern receives interval time by the second communication pattern cell
Paging cycle determine that the downlink data received duration of second communication pattern is received by the paging message of the cell
Time determines.
12. mobile terminal as claimed in claim 11, which is characterized in that the LTE physical layer element includes：LTE physical layer
Control unit, LTE downlink CPR measuring unit and LTE physical layer receiving unit, wherein：The LTE physical layer control unit is used
In when receiving the antenna switching command for carrying out self terminal upper unit, the antenna measurement of modification LTE downlink CPR measuring unit is matched
It sets；After receiving the update configuration information from network side, controls the LTE physical layer receiving unit and update reception configuration；
The LTE downlink CPR measuring unit, for carrying out downlink CPR measurement under antenna measurement configuration, generation is reported to
The measurement result of network side；
The LTE physical layer receiving unit receives the signal from network side for configuring according to the reception of the update.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2013/090852 WO2015100526A1 (en) | 2013-12-30 | 2013-12-30 | Mobile terminal and antenna switching method thereof |
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| CN105594296B true CN105594296B (en) | 2018-11-27 |
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| US10917222B2 (en) * | 2014-09-30 | 2021-02-09 | Apple Inc. | Simultaneous operation of multiple time division duplex links using a single transceiver |
| CN107733447B (en) * | 2016-08-12 | 2020-08-07 | 南宁富桂精密工业有限公司 | Mobile terminal and radiation balancing method thereof |
| CN109769267B (en) * | 2017-11-09 | 2024-04-16 | 天翼电信终端有限公司 | Processing method for reducing co-channel interference and mobile terminal |
| CN110351785B (en) * | 2018-04-02 | 2021-04-09 | 华为技术有限公司 | Communication method and device thereof |
| CN110768705B (en) * | 2018-07-27 | 2021-06-15 | 华为技术有限公司 | Method for configuring antenna channel, receiving apparatus and computer-readable storage medium |
| CN110233630B (en) * | 2019-04-29 | 2022-03-25 | 惠州Tcl移动通信有限公司 | Mobile terminal data processing method, mobile terminal and storage medium |
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