CN107846711A - A kind of carrier switch method and device - Google Patents
A kind of carrier switch method and device Download PDFInfo
- Publication number
- CN107846711A CN107846711A CN201610835230.9A CN201610835230A CN107846711A CN 107846711 A CN107846711 A CN 107846711A CN 201610835230 A CN201610835230 A CN 201610835230A CN 107846711 A CN107846711 A CN 107846711A
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- Prior art keywords
- carrier
- user equipment
- switching command
- carrier wave
- target
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/0085—Hand-off measurements
- H04W36/0088—Scheduling hand-off measurements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/06—Reselecting a communication resource in the serving access point
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
Abstract
The embodiment of the invention discloses a kind of carrier switch method and device.The carrier switch method includes：Current carrier and target carrier according to where the measurement report that user equipment (UE) is sent determines the user equipment；The second carrier wave set being marked on according to the first carrier group where the current carrier and the target carrier, generation carrier switch instruction；Carrier switch instruction is sent to the user equipment, corresponded to so that the user equipment is switched to the target carrier according to the switching command in carrier wave.Realizing the user equipment in connected state in arrowband Internet of Things can still be quickly connected on carrier wave after movement so that arrowband technology of Internet of things facilitation.
Description
Technical field
The present embodiments relate to communication technical field, more particularly to a kind of carrier switch method and device.
Background technology
With the development of wireless communication technology, Internet of Things is by by as next revolution of the mobile communication ecosystem.Thing
Networked devices can provide including automatic data logging, intelligent transportation, safety detection and report and intelligent medical etc. is diversified should
With service.Wherein, arrowband Internet of Things (Narrow Band Internet of Thing, NB-IoT) is in September, 2015 in 3GPP
Standardization body project verification propose a kind of new arrowband cellular telecommunication art, have deployment flexibly, arrowband, low rate, low cost,
The characteristics of high power capacity and the characteristic of coverage enhancement.
In the prior art, the arrowband Internet of Things in Rel-13 is to the user equipment (User in connected state
Equipment, UE) do not support mobile management, including measurement of correlation, measurement report, switching etc., i.e., when the use in connected state
When family equipment is moved, user equipment cannot connect in suitable anchor carrier wave so that the use being connected in arrowband Internet of Things
Family equipment is extremely inconvenient when in use.
The content of the invention
The present invention provides a kind of carrier switch method and device, and to realize, the user in connected state sets in arrowband Internet of Things
It is standby to can still connect to after movement on carrier wave so that arrowband technology of Internet of things facilitation.
In a first aspect, the embodiments of the invention provide a kind of carrier switch method, the carrier switch method includes；
Current carrier and target carrier according to where the measurement report that user equipment (UE) is sent determines the user equipment；
The second carrier wave set being marked on according to the first carrier group where the current carrier and the target carrier, generation carry
Ripple switching command；
Carrier switch instruction is sent to the user equipment, so that the user equipment is according to the switching command
The target carrier is switched to correspond in carrier wave.
Further, the first carrier group according to where the current carrier and where the target carrier second
Carrier wave set, generation carrier switch instruction, including：
If the second carrier wave set where first carrier group and the target carrier where the current carrier is same
Individual carrier wave set, then the carrier information of target carrier is carried in the first switching command.
Further, it is described that carrier switch instruction is sent to the user equipment, including：
Instruct PDCCH order that first switching command is sent into the user by Physical Downlink Control Channel to set
It is standby.
Further, the first carrier group according to where the current carrier and where the target carrier second
Carrier wave set, generation carrier switch instruction, including：
If the second carrier wave set where first carrier group and the target carrier where the current carrier is difference
Carrier wave set, then obtain the timing offset between the first carrier group and second carrier wave set, the timing offset includes
System frame number SFN deviation and subframe subframe deviations；
The timing offset and the carrier information of the target carrier are carried in the second switching command.
Further, it is described that carrier switch instruction is sent to the user equipment, including：
Second switching command is sent to by the user equipment by radio resource control RRC signaling, so as to
The user equipment synchronizes according to the timing offset and the target carrier.
Further, the carrier switch method, before the measurement report that user equipment is sent is received, in addition to：
At least one carrier wave set is configured, each carrier wave set includes at least one anchor carrier wave and at least one non-anchor carrier wave, often
Subframe alignment between cell corresponding to each carrier wave in individual carrier wave set..
Second aspect, the embodiment of the present invention additionally provide a kind of carrier switch device, and the carrier switch device includes：
Carrier wave determining module, the measurement report for being sent according to user equipment (UE) determine the user equipment where work as
Preceding carrier wave and target carrier；
Switching command generation module, for according to the first carrier group where the current carrier and the target carrier mark
The second carrier wave set, generation carrier switch instruction；
Switching command sending module, for the cell switching command to be sent into the user equipment, so as to the use
Family equipment is switched in the target carrier respective cell according to the switching command.
Further, the switching command generation module is used for：
If the second carrier wave set where first carrier group and the target carrier where the current carrier is same
Individual carrier wave set, then the carrier information of target carrier is carried in the first switching command.
Further, the switching command sending module is used for：
Instruct PDCCH order that first switching command is sent into the user by Physical Downlink Control Channel to set
It is standby.
Further, the switching command generation module is used for：
If first carrier group and the second carrier wave set are different carrier wave sets, the first carrier group and described are obtained
Timing offset between nd carrier group, the timing offset include system frame number SFN deviation and subframe subframe deviations；
The timing offset and the carrier information of the target carrier are carried in the second switching command.
Further, the switching command sending module is used for：
Second switching command is sent to by the user equipment by radio resource control RRC signaling, so as to
The user equipment synchronizes according to the timing offset and the target carrier.
Current carrier of the base station of the embodiment of the present invention according to where the measurement report that user equipment is sent determines user equipment
And target carrier, the second carrier wave set that then the first carrier group according to where current carrier and target carrier are marked on, generation carry
Ripple switching command, carrier switch instruction is finally sent to user equipment, so that user equipment is switched to mesh according to switching command
Mark carrier wave is corresponded in carrier wave.In the prior art, when the user equipment in connected state is moved, user equipment can not connect
It is connected to anchor carrier wave so that the user equipment being connected in arrowband Internet of Things is extremely inconvenient when in use.In the embodiment of the present invention, base
Stand and switching command is generated according to the current carrier and target carrier of user equipment, mobile user equipment is switched in time new
On carrier wave, realizing the user equipment in connected state in arrowband Internet of Things can still be quickly connected on carrier wave after movement,
So that arrowband technology of Internet of things facilitation.
Brief description of the drawings
Fig. 1 is a kind of flow chart for carrier switch method that the embodiment of the present invention one provides；
Fig. 2 is a kind of flow chart for carrier switch method that the embodiment of the present invention two provides；
Fig. 3 is a kind of flow chart for carrier switch method that the embodiment of the present invention three provides；
Fig. 4 is a kind of structural representation for carrier switch device that the embodiment of the present invention four provides.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that in order to just
Part related to the present invention rather than entire infrastructure are illustrate only in description, accompanying drawing.
Embodiment one
Fig. 1 is a kind of flow chart for carrier switch method that the embodiment of the present invention one provides, and the present embodiment is applicable to narrow
Such as intelligent medical, intelligent transportation, automatic data logging, safety monitoring and reported and smart home application scenarios in band Internet of Things, this
Method can be performed by base station, base station can be NodeB in LTE or evolved NodeB (Evolved Node B,
ENB), the inner nothing of UMTS (Universal Mobile Telecommunications Service, UMTS)
Line network controller (Radio Node Controller, RNC) or global system for mobile communications (Global System
ForMobile, GSM) inner base station controller (Base Station Controller, BSC) etc., the base station can realize to
User data stream encryption and to functions such as the scheduled transmission of paging information, broadcast message etc. and settings.As shown in figure 1, the carrier wave is cut
The method of changing specifically comprises the following steps：
Step S110, current carrier and target according to where the measurement report that user equipment (UE) is sent determines user equipment
Carrier wave.
User equipment measures in GAP is measured, and obtains measurement report.User equipment suspends data in GAP is measured
Information sends and receives, and user equipment is exclusively used in measuring by GAP is measured.The measurement content that measurement report includes can be with
It is：Current area ID, other cells ID, user equipment receive each cell base station signals signal intensity (signal quality) and respectively
The precedence information of cell.Characterizing the parameter of signal intensity can be, for example, the reference signal quality (reference in LTE
Signal received quality, RSRQ), signal to noise ratio (the Ratio of energy per of UMTS
Modulating bit to the noise spectral density, R/N), the reception level of the mobile general-purpose system in the whole world
Quality (Received Signal Quality, RSQ) or other can reflect the good and bad parameter of signal.The parameter of priority
It can be characterized with the difference with former cell base station frequency and system, for example, with frequency homologous ray rank highest, with the different system time of frequency
It, third, the different system level of alien frequencies is most low for alien frequencies homologous ray.Under this application scene, cell and adjacent cell between base station
Between timing offset, i.e. System Frame Number (System Frame Number, SFN) deviation and subframe (subframe) deviation be present.
Because user equipment has mobility, it can move into the marginal position of current area, because current area carries
The limited coverage area of ripple, in the signal strength weakening of marginal position, now the signal intensity of current area can not meet user
The demand of equipment, user equipment need to be measured to peripheral cell, and measurement report is sent to base station by user equipment, base station according to
Content in measurement report judges current carrier and target carrier to carry out carrier switch, and the current area of user equipment connection carries
Ripple is current carrier, and the cell carrier being switched to is target carrier by user equipment.
Assuming that user equipment can currently receive the carrier signal of three cells simultaneously, table 1 is one that the present embodiment provides
The measurement report of individual user equipment, the metrical information of a cell is corresponded in the list per a line.
Table 1
| Cell name | Cell ID | Signal intensity | Precedence information |
| Cell A | ID1 | Intensity A | Priority A |
| Cell B | ID2 | Intensity B | Priority B |
| Cell C | ID3 | Intensity C | Priority C |
As shown in table 1, the measurement report of user equipment includes ID, signal corresponding to cell A, cell B and cell C difference
Intensity and precedence information.Optionally, if intensity A is maximum in measurement report and is more than a certain threshold value, the threshold value can for example be set
30% is set to, intensity B and intensity C are less than the threshold value, and priority A rank highests, then the carrier wave in cell A is user equipment institute
Current carrier.With the movement of user equipment, signal intensity A gradually decreases to be less than the threshold value, signal intensity B or signal
Intensity C is gradually increased to be more than the threshold value, and signal intensity B or signal intensity C is maximum, then the carrier wave in cell B or cell C is
Target carrier where user equipment.
Optionally, signal intensity A gradually decreases to be less than the threshold value, signal intensity B and signal intensity C gradually increases simultaneously
To more than the threshold value, and signal intensity B is equal to signal intensity C, then judges priority B and priority C, if priority B be more than it is excellent
First level C, then the carrier wave in cell B is the target carrier of user equipment.
Preferably, before step S110, in addition to：At least one carrier wave set is configured, each carrier wave set includes at least one
Individual anchor carrier wave and at least one non-anchor carrier wave, subframe alignment between cell corresponding to each carrier wave in each carrier wave set.
It is subframe alignment between the cell between non-anchor carrier wave and anchor carrier wave and non-anchor carrier wave in a carrier wave set
, even symbol level aligns.The configuration of carrier wave set can configure to corresponding carrier wave set simultaneously when establishing carrier wave,
Or manually configured by network manager.For example, newly-built non-anchor carrier wave a synchronizing information matches with carrier wave set A, then will
Non- anchor carrier wave a is added in carrier wave set A.
Step S120, the second carrier wave set that first carrier group and target carrier according to where current carrier are marked on, generation
Carrier switch instructs.
Wherein, switching command is included in the first switching command switched between same carrier wave set and switched between different carrier wave sets
The second switching command.First switching command can instruct (Physical Downlink by Physical Downlink Control Channel
Control Channel, PDCCH order) user equipment is sent to, the second switching command can pass through radio resource control
(Radio Resource Control, RRC) signaling is sent to the user equipment.Under this application scene, if first carries
Ripple group can then be switched with the second carrier wave set to belong to same carrier wave set by the first switching command realization group intercarrier.If the
One carrier wave set to belong to different carrier wave sets, then you can instruct carrier switch between realization group from the second carrier wave set by the second cut-flower.
Step S130, carrier switch instruction is sent to user equipment, so that user equipment is switched to according to switching command
Target carrier is corresponded in carrier wave.
The wherein basic procedure of user equipment carrier switch can be that user equipment receives switching command, and base station is established new
Path, user equipment release primary carrier channel simultaneously apply for access new carrier wave channel, finally access new carrier wave channel.Should use
Under scape, user equipment switches to same carrier wave set according to above-mentioned the first switching command or the second switching command by current carrier
In target carrier in or different carrier wave sets in target carrier in.
The technical scheme of the present embodiment, base station working as according to where the measurement report that user equipment is sent determines user equipment
Preceding carrier wave and target carrier, the second carrier wave set that then the first carrier group according to where current carrier and target carrier are marked on,
Carrier switch instruction is generated, carrier switch instruction is finally sent to user equipment, so that user equipment is cut according to switching command
Target carrier is changed to correspond in carrier wave.In the prior art, when the user equipment in connected state is moved, user equipment
It cannot connect to anchor carrier wave so that the user equipment being connected in arrowband Internet of Things is extremely inconvenient when in use.The present invention is implemented
In example, base station generates switching command according to the current carrier and target carrier of user equipment, mobile user equipment is cut in time
Shift on new carrier wave, realizing the user equipment in connected state in arrowband Internet of Things can still be quickly connected to after movement
On carrier wave so that arrowband technology of Internet of things facilitation.
Embodiment two
Fig. 2 is a kind of flow chart for carrier switch method that the embodiment of the present invention two provides, based on above-described embodiment,
As shown in Fig. 2 step S120 also includes：
Step S121, if the second carrier wave set where first carrier group and target carrier where current carrier is same
Individual carrier wave set, then the carrier information of target carrier is carried in the first switching command.
Wherein, user equipment can be included in carrier information and accesses the index of the target carrier, the channel ginseng of target carrier
Frequency/system information of cell base station where number and carrier wave etc..User equipment is according to the carrier information of the target carrier by working as
Preceding carrier wave switches to the target carrier.
Step S130 includes：
Step S131, PDCCH order are instructed to be sent to the first switching command by Physical Downlink Control Channel described
User equipment.
Wherein, Physical Downlink Control Channel instruction PDCCH order carryings scheduling and other control information, are specifically included
Transformat, resource allocation, uplink scheduling license, the function of Power Control and uplink retransmission information.In the present embodiment,
PDCCH order are used to the switching command of carrier wave between same carrier wave set being sent to user equipment.
The technical scheme that the present embodiment provides, if the where first carrier group and target carrier where current carrier
Nd carrier group is same carrier wave set, then the carrier information of target carrier is carried in the first switching command, and by under physics
First switching command is sent to the user equipment by row control channel instruction PDCCH order, is realized in same carrier wave set not
With the switching of intercarrier.Timing offset is not present with the carrier wave between carrier wave set, can complete to switch using PDCCH order, by
Instructed in Physical Downlink Control Channel instruction for bottom communication layer, therefore can be while a small amount of bandwidth is taken rapidly by user
Equipment is corresponding, accelerates handoff response speed while realizing and save system resource, so as to put forward carrier switch efficiency.
Embodiment three
Fig. 3 is a kind of flow chart for carrier switch method that the embodiment of the present invention three provides, based on above-described embodiment,
As shown in figure 3, step S120 includes：
Step S1221, if the second carrier wave set where first carrier group and target carrier where current carrier is not
Same carrier wave set, then obtain the timing offset between first carrier group and the second carrier wave set, and timing offset includes system frame number SFN
Deviation and subframe subframe deviations.
Wherein, the timing offset obtained between first carrier group and the second carrier wave set can be received by user equipment
Current carrier signal carries out related operation acquisition with target carrier signal, and specific way for example can be to intercept one section of target
The signal of carrier wave carries out computing cross-correlation with current carrier signal, and the length of intercept signal is generally higher than a radio frames.
Step S1222, timing offset and the carrier information of target carrier are carried in the second switching command.
Step S132, the second switching command is sent to by user equipment by radio resource control RRC signaling, so as to
User equipment synchronizes according to timing offset and target carrier.
Radio resource control RRC handles the third layer information of control plane between user equipment and base station.In this reality
Apply in example, radio resource control RRC is used to the switching command of carrier wave between different carrier wave sets being sent to user equipment, base station
Sync bit between two carrier wave sets, user equipment root are determined according to the certain computing of the timing offset progress between different carrier wave sets
Synchronously it is linked into according to the sync bit in target carrier.
The technical scheme that the present embodiment provides, if the where first carrier group and target carrier where current carrier
Nd carrier group is different carrier wave set, then obtains the timing offset between first carrier group and the second carrier wave set, in the second switching
Timing offset and the carrier information of target carrier are carried in instruction, is switched by radio resource control RRC signaling by second
Instruction is sent to user equipment, so that user equipment synchronizes according to timing offset and target carrier.Realize user equipment
After being moved, the switching of intercarrier in the carrier wave set of different districts, the use range for the equipment that extends one's service.
Example IV
Fig. 4 is a kind of structural representation for carrier switch device that the embodiment of the present invention four provides, as shown in figure 4, the load
Ripple switching device includes：Carrier wave determining module 410, switching command generation module 420 and switching command sending module 430.
Carrier wave determining module 410, the measurement report for being sent according to user equipment (UE) are determined where the user equipment
Current carrier and target carrier；
Switching command generation module 420, for the first carrier group according to where current carrier and the target carrier mark
The second carrier wave set, generation carrier switch instruction；
Switching command sending module 430, for cell switching command to be sent into the user equipment, so as to user equipment
It is switched to according to switching command in the target carrier respective cell.
Preferably, switching command generation module 420 is used for：If first carrier group and target carrier where current carrier
Second carrier wave set at place is same carrier wave set, then the carrier information of target carrier is carried in the first switching command.
Preferably, switching command sending module 430 is used for：Instruct PDCCH order will by Physical Downlink Control Channel
First switching command is sent to the user equipment.
Preferably, switching command generation module 420 is used for：
If first carrier group where the current carrier carrier wave set different with the second carrier wave set where target carrier,
The timing offset between first carrier group and the second carrier wave set is obtained, the timing offset includes system frame number SFN deviation and subframe
Subframe deviations；
Timing offset and the carrier information of target carrier are carried in the second switching command.
Preferably, switching command sending module 430 is used for：Second is switched by radio resource control RRC signaling
Instruction is sent to user equipment, so that user equipment synchronizes according to timing offset and target carrier.
Said apparatus can perform the method that the embodiment of the present invention one, embodiment two and embodiment three are provided, and possess execution
The corresponding functional module of the above method and beneficial effect.Not ins and outs of detailed description in the present embodiment, reference can be made to this hair
The method that bright embodiment one, embodiment two and embodiment three are provided.
Pay attention to, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although being carried out by above example to the present invention
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other more equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (11)
- A kind of 1. carrier switch method, it is characterised in that including：Current carrier and target carrier according to where the measurement report that user equipment (UE) is sent determines the user equipment；The second carrier wave set being marked on according to the first carrier group where the current carrier and the target carrier, generation carrier wave are cut Change instruction；Carrier switch instruction is sent to the user equipment, so that the user equipment switches according to the switching command Corresponded to the target carrier in carrier wave.
- 2. carrier switch method according to claim 1, it is characterised in that it is described according to where the current carrier The second carrier wave set where one carrier wave set and the target carrier, generation carrier switch instruction, including：If the second carrier wave set where first carrier group and the target carrier where the current carrier is same load Ripple group, then the carrier information of target carrier is carried in the first switching command.
- 3. carrier switch method according to claim 2, it is characterised in that described to be sent to carrier switch instruction The user equipment, including：Instruct PDCCH order that first switching command is sent into the user equipment by Physical Downlink Control Channel.
- 4. carrier switch method according to claim 1, it is characterised in that it is described according to where the current carrier The second carrier wave set where one carrier wave set and the target carrier, generation carrier switch instruction, including：If the second carrier wave set where first carrier group and the target carrier where the current carrier is different load Ripple group, then obtain the timing offset between the first carrier group and second carrier wave set, and the timing offset includes system Frame number SFN deviations and subframe subframe deviations；The timing offset and the carrier information of the target carrier are carried in the second switching command.
- 5. carrier switch method according to claim 4, it is characterised in that described to be sent to carrier switch instruction The user equipment, including：Second switching command is sent to by the user equipment by radio resource control RRC signaling, so as to described User equipment synchronizes according to the timing offset and the target carrier.
- 6. the carrier switch method according to any one of claim 1-5, it is characterised in that sent receiving user equipment Measurement report before, in addition to：At least one carrier wave set is configured, each carrier wave set includes at least one anchor carrier wave and at least one non-anchor carrier wave, Mei Gezai Subframe alignment between cell corresponding to each carrier wave in ripple group.
- A kind of 7. carrier switch device, it is characterised in that including：Carrier wave determining module, the measurement report for being sent according to user equipment (UE) determine the user equipment where work as front bearing Ripple and target carrier；Switching command generation module, for what is be marked on according to the first carrier group where the current carrier and the target carrier Second carrier wave set, generation carrier switch instruction；Switching command sending module, for the cell switching command to be sent into the user equipment, so that the user sets It is standby to be switched to according to the switching command in the target carrier respective cell.
- 8. carrier switch device according to claim 7, it is characterised in that the switching command generation module is used for：If the second carrier wave set where first carrier group and the target carrier where the current carrier is same load Ripple group, then the carrier information of target carrier is carried in the first switching command.
- 9. carrier switch device according to claim 8, it is characterised in that the switching command sending module is used for：Instruct PDCCH order that first switching command is sent into the user equipment by Physical Downlink Control Channel.
- 10. carrier switch device according to claim 7, it is characterised in that the switching command generation module is used for：If the second carrier wave set where first carrier group and the target carrier where the current carrier is different load Ripple group, then obtain the timing offset between the first carrier group and second carrier wave set, and the timing offset includes system Frame number SFN deviations and subframe subframe deviations；The timing offset and the carrier information of the target carrier are carried in the second switching command.
- 11. carrier switch device according to claim 10, it is characterised in that the switching command sending module is used for：Second switching command is sent to by the user equipment by radio resource control RRC signaling, so as to described User equipment synchronizes according to the timing offset and the target carrier.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610835230.9A CN107846711A (en) | 2016-09-20 | 2016-09-20 | A kind of carrier switch method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610835230.9A CN107846711A (en) | 2016-09-20 | 2016-09-20 | A kind of carrier switch method and device |
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| CN107846711A true CN107846711A (en) | 2018-03-27 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109640391A (en) * | 2019-01-29 | 2019-04-16 | 中国科学院上海微系统与信息技术研究所 | Synchronization signal and broadcast channel switching method in a kind of electric power wireless communication system |
| WO2024012276A1 (en) * | 2022-07-14 | 2024-01-18 | 华为技术有限公司 | Carrier switching method and apparatus |
| WO2024012281A1 (en) * | 2022-07-14 | 2024-01-18 | 华为技术有限公司 | Carrier switching method and apparatus |
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