CN108632912A - The method and apparatus of switching cell - Google Patents
The method and apparatus of switching cell Download PDFInfo
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- CN108632912A CN108632912A CN201710157064.6A CN201710157064A CN108632912A CN 108632912 A CN108632912 A CN 108632912A CN 201710157064 A CN201710157064 A CN 201710157064A CN 108632912 A CN108632912 A CN 108632912A
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- 238000005259 measurement Methods 0.000 claims abstract description 25
- 238000001514 detection method Methods 0.000 claims description 30
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- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000008569 process Effects 0.000 abstract description 21
- 238000011160 research Methods 0.000 abstract description 8
- 238000010295 mobile communication Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
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Classifications
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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
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/00835—Determination of neighbour cell lists
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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
-
- 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
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
- H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/34—Reselection control
- H04W36/36—Reselection control by user or terminal equipment
Abstract
The invention discloses a kind of method and apparatus of switching cell, this method includes：The channel quality of the channel quality and each adjacent cell of cell where user equipment is detected according to the measurement configuration information received；There are in the case of the channel quality that channel quality is more than place cell in each adjacent cell detected, user equipment is determined using the optimal adjacent cell of channel quality in each adjacent cell as target handover cell；User equipment sends switching command to the corresponding source wireless net member of place cell, so that source wireless net member executes handoff procedure, wherein carry the information of the corresponding Target Wireless network element in target handover cell in switching command.The above-mentioned whole process user equipment of the present invention actively switches, and process is simple, solves the problems, such as the as follows of the prior art：In the research of 5G, the UE processes actively switched are not illustrated, lead to not realize the autonomous handoff procedures of UE.
Description
Technical field
The present invention relates to field of mobile communication, more particularly to a kind of method and apparatus of switching cell.
Background technology
With gradually popularizing for the mobile terminals such as smart mobile phone, in the past ten years, the portfolio of mobile communication is undergone
Explosive growth.Industry is it is believed that with the appearance of the new opplications such as ultra high-definition video, virtual reality and universal at present,
The portfolio of coming 10 years mobile communication will exponentially increase, and will be more than 1000 times in some hot zones.
1000 times of portfolio, which increases, becomes the further evolution of driving forth generation mobile communication system (abbreviation 4G systems)
Maximum power.In order to meet this demand, the 5th Generation Mobile Communication System (abbreviation 5G systems) proposes the 1000 of great challenge
The target of times capacity boost.The developing history of mobile communication shows that cell splitting, the bandwidth of bigger, higher spectrum efficiency are
The three big pillars that power system capacity is promoted.
With the development of cell splitting technology, low-power transmission node (Transmission Point, abbreviation TP) is clever
Living, sparse is deployed within the overlay area macrocell (Macro Cell), forms by macrocell and cell (Small
Cell) the multilayer heterogeneous network (Heterogeneous Network, abbreviation HetNet) formed.HetNet can not only protected
Flexibility and the power system capacity that cell splitting is improved while card covering, share the traffic pressure of macrocell, can also expand macro
The coverage area of cell.In the latter stage of 4G system researches, in order to further increase power system capacity, 3GPP proposes Small Cell
Enhancing technology, the problem expands preliminary research when to high-density deployment small cell.
Super-intensive network in 5G can be regarded as the further evolution of Small Cell enhancing technologies.In super-intensive network
In, TP density will further improve, and the coverage area of TP further reduces, and each TP only services one or seldom several simultaneously
Terminal.Super-intensive deployment has furthered TP at a distance from terminal so that their transmission power can substantially reduce, and become very
Close, the difference of uplink and downlink link is also therefore smaller and smaller.
Heterogeneous network changes the topological structure of conventional cellular network, and deployed simultaneously in system so has different transmittings more
The website of power and coverage area so that network deployment is more flexible.But heterogeneous network also brings some newly to system design
Challenge, a series of problems caused by new network structure is required for solving.It is increased in the coverage area of macro base station big
The website of amount overlapping covering, can increase excessive " cell edge ", therefore can increase the complexity of mobile management, especially increase
The complexity for having added cell reselection to switch with cell.
Wherein, cell reselection refers to being in idle condition the UE of (Idle) to be transferred to the mistake of another cell from a cell
Journey.Cell reselection is the autonomous behaviors of UE, and according to the channel quality measurements of serving cell and adjacent cell, selection meets small UE
The new demand servicing cell of area's reselection conditions.It is small that cell switching refers to that UE under the connection status from a cell is transferred to another
The process in area.Using the cell switching method for being " UE auxiliary, network decision " in existing standard." UE auxiliary " refers to base station into
The channel quality that UE is reported is referred to when row switch decision.UE monitors the channel quality of serving cell and adjacent cell, works as hair
When existing serving cell and the channel of adjacent cell meet certain condition, UE is to evolved base station (eNB) report measurement results.
" network decision " refers to the measurement result that eNB is reported according to UE, decides whether the UE being switched to other cells.
In the research of 5G, in order to simplify cell switch process, it is proposed that take " UE independently switches ", however do not have but
There is the process actively switched to UE to illustrate, cannot achieve the autonomous handoff procedures of UE.
Invention content
The present invention provides a kind of method and apparatus of switching cell, to solve the problems, such as the as follows of the prior art：5G's
In research, the UE processes actively switched are not illustrated, lead to not realize the autonomous handoff procedures of UE.
In order to solve the above technical problems, on the one hand, the present invention provides a kind of method of switching cell, including：User equipment
According to the channel quality of the channel quality and each adjacent cell of cell where the measurement configuration information detection received；It is detecting
Each adjacent cell in there are channel quality be more than the place cell channel quality in the case of, the user equipment
It determines using the optimal adjacent cell of channel quality in each adjacent cell as target handover cell；The user equipment is to described
Cell corresponding source wireless net member in place sends switching command, so that the source wireless net member executes handoff procedure, wherein described
The information of the corresponding Target Wireless network element in the target handover cell is carried in switching command.
Optionally, after the user equipment sends switching command to the corresponding source wireless net member of the place cell, also
Including：In the case where the source wireless net member completes handoff procedure, the user equipment receives the source wireless net member and sends
Handoff completion message.
Optionally, user equipment detects the channel matter of each adjacent cell according to the measurement configuration information received
Amount, including：The user equipment judges that channel quality is more than whether the quantity of the default adjacent cell for measuring threshold value reaches default
Quantity；In the case where reaching the preset quantity, the user equipment stops the channel quality of detection adjacent cell.
On the other hand, the present invention also provides a kind of methods of switching cell, including：Source wireless net member receives user equipment hair
The switching command sent, wherein the information of the corresponding Target Wireless network element in target handover cell is carried in the switching command；Institute
It states source wireless net member and handoff procedure is executed according to the information of the Target Wireless network element, the cell to complete the user equipment is cut
It changes.
Optionally, the source wireless net member executes handoff procedure according to the information of the Target Wireless network element, including：It is described
It whether there is direct-connected interface between source wireless net member detection and the Target Wireless network element；There are the direct-connected interface the case where
Under, the source wireless net member sends switching request message to the Target Wireless network element, wherein is carried in the switching request
The Target Wireless network element sends the bearer context information needed when the path integration is asked to core network control surface entity；
After completing to switch, the source wireless net member receives the switching response message from the Target Wireless network element；There is no institute
In the case of stating direct-connected interface, the source wireless net member sends switching request message to the core network control surface entity, wherein
The bearer context information is carried in the switching request；After completing to switch, the source wireless net member, which receives, comes from institute
State the switching response message of core network control surface entity.
On the other hand, the present invention also provides a kind of devices of switching cell, including：Detection module is received for basis
Measurement configuration information detection where cell channel quality and each adjacent cell channel quality；Determining module, for examining
In the case of channel quality in each adjacent cell measured there are channel quality more than the place cell, determine institute
Channel quality is optimal in each adjacent cell adjacent cell is stated as target handover cell；Sending module, for small to the place
The corresponding source wireless net member in area sends switching command, so that the source wireless net member executes handoff procedure, wherein the switching life
The information of the corresponding Target Wireless network element in the target handover cell is carried in order.
Optionally, further include：Message reception module is used in the case where the source wireless net member completes handoff procedure,
Receive the handoff completion message that the source wireless net member is sent.
Optionally, the detection module is specifically used for：Judge that channel quality is more than the default adjacent cell for measuring threshold value
Whether quantity reaches preset quantity, and in the case where reaching the preset quantity, stops the channel quality of detection adjacent cell.
On the other hand, the present invention also provides a kind of devices of switching cell, including：Order receiver module is used for receiving
The switching command that family equipment is sent, wherein the corresponding Target Wireless network element in target handover cell is carried in the switching command
Information；Handover module, for executing handoff procedure according to the information of the Target Wireless network element, to complete the user equipment
Cell switching.
Optionally, the handover module includes：Whether detection unit deposits for detecting between the Target Wireless network element
In direct-connected interface；First switch unit, for there are the direct-connected interface, being sent to the Target Wireless network element
Switching request message, wherein carry the Target Wireless network element in the switching request and sent to core network control surface entity
The bearer context information needed when the path integration request；After completing to switch, receives and come from the Target Wireless network element
Switching response message；Second switch unit, for there is no the direct-connected interface, being controlled to the core net
Face entity sends switching request message, wherein the bearer context information is carried in the switching request；It completes to switch
Afterwards, the switching response message from the core network control surface entity is received.
The channel quality of the channel quality of each adjacent cell and place cell is compared by user equipment of the present invention, user
Equipment is when finding there are channel quality to be more than the adjacent cell of channel quality of place cell, just from each of detection channel quality
That adjacent cell for selecting channel quality optimal in a adjacent cell, using the adjacent cell as target handover cell, and actively to institute
Switching command is sent in the corresponding source wireless net member of cell, to make the target switching that source wireless net member is selected according to user equipment small
Area executes handoff procedure, and whole process user equipment actively switches, process is simple, solves the problems, such as the as follows of the prior art：
In the research of 5G, the UE processes actively switched are not illustrated, lead to not realize the autonomous handoff procedures of UE.
Description of the drawings
Fig. 1 is the flow chart of the method for switching cell in first embodiment of the invention；
Fig. 2 is the flow chart of the method for switching cell in second embodiment of the invention；
Fig. 3 is the structural schematic diagram of the device of switching cell in third embodiment of the invention；
Fig. 4 is the structural schematic diagram of the device of switching cell in fourth embodiment of the invention；
Fig. 5 is the structural schematic diagram of the device handover module of switching cell in fourth embodiment of the invention；
Fig. 6 is the message flow chart that UE independently switches in fifth embodiment of the invention；
Fig. 7 is the flow chart for sending switching command in fifth embodiment of the invention by radio network unit interface；
Fig. 8 is to send switching by radio network unit and core network control surface entity interface in fifth embodiment of the invention
The flow chart of order.
Specific implementation mode
In order to solve the problems, such as the as follows of the prior art：In the research of 5G, the UE processes actively switched are not said
It is bright, lead to not realize the autonomous handoff procedures of UE；The present invention provides a kind of method and apparatus of switching cell, below in conjunction with attached
Figure and embodiment, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, the present invention is not limited.
First embodiment of the invention provides a kind of method of switching cell, and this method is the execution flow of user equipment,
Its flow is as shown in Figure 1, include step S102 to S106：
S102, user equipment are small according to the channel quality of cell and each neighbour where the measurement configuration information detection received
The channel quality in area；
The case where S104, there are the channel qualities that channel quality is more than place cell in each adjacent cell detected
Under, user equipment is determined using the optimal adjacent cell of channel quality in each adjacent cell as target handover cell；
S106, user equipment sends switching command to the corresponding source wireless net member of place cell, so that source wireless net member is held
Row handoff procedure, wherein the information of the corresponding Target Wireless network element in target handover cell is carried in switching command.
User equipment of the embodiment of the present invention compares the channel quality of the channel quality of each adjacent cell and place cell
Compared with user equipment is when finding there are channel quality to be more than the adjacent cell of channel quality of place cell, just from detection channel
That adjacent cell for selecting channel quality optimal in each adjacent cell of quality, using the adjacent cell as target handover cell, and
Switching command actively is sent to the corresponding source wireless net member of place cell, come the mesh for allowing source wireless net member to be selected according to user equipment
Mark switching cell executes handoff procedure, and whole process user equipment actively switches, process is simple, solve the prior art as
Lower problem：In the research of 5G, the UE processes actively switched are not illustrated, lead to not realize that UE independently switched
Journey.
During realization, after user equipment sends switching command to the corresponding source wireless net member of place cell, source
Wireless net member executes handoff procedure, and user equipment is switched to Target Wireless network element by source wireless net member；In source, wireless net member is complete
In the case of handoff procedure, user equipment receives the handoff completion message that source wireless net member is sent, at this point, user equipment will make
With the channel transceiver information of Target Wireless network element.
During user equipment detects the channel quality of each adjacent cell according to the measurement configuration information received, use
Family equipment can all be detected the channel quality of all adjacent cells, naturally it is also possible to only detect a part, i.e. user equipment
Judge that channel quality is more than whether the quantity of the default adjacent cell for measuring threshold value reaches preset quantity, if reaching present count
Amount just stops the channel quality of detection adjacent cell.Can be measured to obtain according to experiment for above-mentioned default measurement threshold value
, it can ensure that user equipment has a threshold value of preferably transmission channel, when the channel quality of detection is more than default
After the adjacent cell of measurement threshold value reaches preset quantity, so that it may with the channel of these channel qualities and place cell that will detect
Quality is compared, and carries out cell switching according to comparison result.
Second embodiment of the invention provides a kind of method of switching cell, and this method is the execution stream of source wireless net member
Journey, flow is as shown in Fig. 2, include step S202 to S204：
S202, source wireless net member receive the switching command that user equipment is sent, wherein carry target in switching command and cut
The information of the corresponding Target Wireless network element in changing district；
S204, source wireless net member executes handoff procedure according to the information of Target Wireless network element, to complete the small of user equipment
Area switches.
The source wireless net member of the present embodiment is when receiving the switching command of user equipment transmission, according in the switching command
The information of the corresponding Target Wireless network element in target handover cell of carrying executes handoff procedure, during switching, needs
It whether there is direct-connected interface between source wireless net member detection and Target Wireless network element.
There are direct-connected interface, between source wireless net member and Target Wireless network element can with direct communication, source without
Gauze member sends switching request message to Target Wireless network element, wherein Target Wireless network element is carried in switching request to core
The bearer context information needed when network control surface entity transmitting path convert requests；After completing to switch, source wireless net member connects
Receive the switching response message from Target Wireless network element.
There is no direct-connected interface, between source wireless net member and Target Wireless network element can not direct communication, source
Wireless net member sends switching request message to core network control surface entity, wherein bearer context letter is carried in switching request
Breath；After completing to switch, source wireless net member receives the switching response message from core network control surface entity.
Third embodiment of the invention provides a kind of device of switching cell, which can be arranged in a user device,
Its structural representation is as shown in figure 3, include：
Detection module 10, for according to the channel quality of cell and each neighbour where the measurement configuration information detection received
The channel quality of cell；Determining module 11 is coupled with detection module 10, for there are channels in each adjacent cell detected
Quality be more than place cell channel quality in the case of, determine using the optimal adjacent cell of channel quality in each adjacent cell as
Target handover cell；Sending module 12 is coupled with determining module 11, for being cut to the corresponding source wireless net member transmission of place cell
Order is changed, so that source wireless net member executes handoff procedure, wherein carry the corresponding target in target handover cell in switching command
The information of wireless net member.
The device of the present embodiment switching cell carries out the channel quality of each adjacent cell and the channel quality of place cell
Compare, when finding there are channel quality to be more than the adjacent cell of channel quality of place cell, just from detection channel quality
Select optimal that adjacent cell of channel quality in each adjacent cell, regard the adjacent cell as target handover cell, and active to
Cell corresponding source wireless net member in place sends switching command, to allow source wireless net member to be switched according to the target that user equipment selects
Cell executes handoff procedure, and process is simple, solve the problems, such as that the prior art cannot achieve the autonomous handoff procedures of UE.
Above-mentioned apparatus can also include：Message reception module is coupled with sending module, for being cut in the completion of source wireless net member
In the case of changing process, the handoff completion message that source wireless net member is sent is received.
When realization, detection module specifically can be used for：Judge that channel quality is more than the default adjacent cell for measuring threshold value
Whether quantity reaches preset quantity, and in the case where reaching preset quantity, stops the channel quality of detection adjacent cell.
Fourth embodiment of the invention provides a kind of device of switching cell, which can be arranged in source wireless net member
In, structural representation is as shown in figure 4, include：
Order receiver module 20, the switching command for receiving user equipment transmission, wherein mesh is carried in switching command
Mark the information of the corresponding Target Wireless network element in switching cell；Handover module 21 is coupled with Order receiver module 20, for according to mesh
The information for marking wireless net member executes handoff procedure, and the cell to complete user equipment switches.
The device of the switching cell of the present embodiment receive user equipment transmission switching command when, handover module according to
The information of the corresponding Target Wireless network element in target handover cell carried in the switching command executes handoff procedure, in switching
In the process, handover module may include multiple units to execute each process in handoff procedure, the i.e. knot of handover module respectively
Structure is as shown in figure 5, may include：
Detection unit 210 whether there is direct-connected interface for detecting between Target Wireless network element；
First switch unit 211, couples with detection unit 210, for there are direct-connected interface, to target without
Gauze member sends switching request message, wherein carries Target Wireless network element in switching request and is sent out to core network control surface entity
The bearer context information needed when path integration being sent to ask；After completing to switch, the switching from Target Wireless network element is received
Response message；
Second switch unit 212, couples with detection unit 210, is used for there is no direct-connected interface, to core
Network control surface entity sends switching request message, wherein bearer context information is carried in switching request；It completes to switch
Afterwards, the switching response message from core network control surface entity is received.
Fifth embodiment of the invention provides a kind of method that UE independently switches, i.e. " UE decisions ", refers to UE small according to servicing
The channel quality measurements of area (cell where i.e.) and adjacent cell, the new demand servicing cell that selection meets cell switching condition carry out
Switching.Whole process is as follows：
Fig. 6 is the message flow that the UE of the present embodiment independently switches.Including following S602 to S610：
S602, source radio network unit (i.e. source wireless net member) sends measurement configuration information to UE, in measurement configuration information
Including measuring physical quantity, measuring threshold value；
Wherein, it can be Reference Signal Received Power or pilot frequency intensity to measure physical quantity.
Wherein, it can be absolute threshold value to measure threshold value, can also be relative threshold value.
Absolute threshold value indicates：The physical quantity and absolute threshold value that UE is measured think to meet when being more conform with preset condition
Condition.Relative threshold value indicates：Difference between physical quantity and the physical quantity of serving cell that UE is measured and relative threshold value
Think to meet condition when being more conform with preset condition.
Meanwhile the list information of abutting subdistrict can be embodied as comprising the range measured in measurement configuration information.
Optionally, it can also include a cell number in measuring configuration message, indicate the physical layer measured and measure door
Limit value compares the maximum value for the cell number for reaching preset condition.
S604, UE measure neighboring area signal, switch over judgement.Below to two kinds of the autonomous switch decisions of UE under normal conditions
Situation illustrates.
A kind of judgement flow that UE independently switches：The transmitting node that UE can detect periphery measures；At these
Reach and selects top-quality, the destination node as switching in the transmitting node of condition.
Another judgement flow that UE independently switches：The transmitting node that UE can detect periphery measures；Work as survey
The quality of the transmitting node of amount with measure threshold value compare reach the number of preset condition and reach number thresholding when, stop measurement,
Top-quality, the destination node as switching is selected in the transmitting node that these reach condition.
S606, UE send switching command to source radio network unit, in switching command (i.e. comprising target radio network unit
Target Wireless network element) information.
S608, source radio network unit execute handoff procedure.
S610, source radio network unit send handoff completion message to UE.
Specifically, source radio network unit with target radio network unit based on whether have direct interface, according to whether having
Direct interface decision is also to be destined to core network control surface using handover request is directly sent to target radio network unit
Entity.Above-mentioned flow is described in detail below in conjunction with the accompanying drawings.
Source radio network unit and target radio network unit have direct interface, decision to use and directly send handover request
Give target radio network unit.Fig. 7 is the flow that the present embodiment sends switching command by radio network unit interface, including：
S702, source radio network unit send switching request message to target radio network unit, include carrying in message
Contextual information.
S704, target radio network unit are wrapped in message to core network control surface entity transmitting path transition request message
Information containing bearer context.
S706, the carrying between the modification of core network control surface entity and radio network unit, i.e., by source radio network unit
It is revised as target radio network unit.
S708, core network control surface entity is to target radio network unit transmitting path transition response message.
S710, target radio network unit send switching response message to source radio network unit, include distribution in message
Radio bearer information, while preserving bearer context information.
Source radio network unit and target radio network unit do not have direct interface, decision to use and be sent to handover request
Core network control surface entity.Fig. 8 is that the present embodiment sends switching by radio network unit and core network control surface entity interface
The flow of order, including：
S802, source radio network unit send switching request message to core network control surface entity, include carrying in message
Contextual information.
S804, core network control surface entity send switching request message to target radio network unit, include to hold in message
Carry contextual information.
S806, target radio network unit carry out resource allocation, and switching response message is sent to core network control surface entity,
Include the radio bearer information of distribution in response message.
S808, the carrying of core network control surface entity modification and radio network unit.
S810, core network control surface entity send switching response message to source radio network unit, include in response message
The radio bearer information of target radio network unit distribution.
In the following, being illustrated respectively according to the implementation procedure of unilateral network element.
The method that above-mentioned UE independently switches, is applied to radio network unit, and detailed process is as follows：
The first step, source radio network unit send measurement configuration information to UE, include measurement quality in measurement configuration information
Physical quantity measures threshold value.
Second step, source radio network unit receive the switching command that UE is sent, and include target radio network in switching command
The information of unit.
Third walks, and source radio network unit executes handoff procedure.
The method that above-mentioned UE independently switches, is applied to user equipment, and detailed process is as follows：
The first step, UE receive the measurement configuration information that source radio network unit is sent, include measurement in measurement configuration information
Quality physical quantity measures threshold value.
Second step, UE measure neighboring area signal, switch over judgement.
Third walks, and UE sends switching command to source radio network unit, includes target radio network unit in switching command
Information.
Compared to the prior art, advantage is the present embodiment, reduces idle message, and the flow of switching has simplification, and
And the configuration of parameter can be switched over based on UE, meet the development trend centered on UE in future communications.
Although being example purpose, the preferred embodiment of the present invention is had been disclosed for, those skilled in the art will recognize
Various improvement, increase and substitution are also possible, and therefore, the scope of the present invention should be not limited to the above embodiments.
Claims (10)
1. a kind of method of switching cell, which is characterized in that including：
The channel of the channel quality and each adjacent cell of cell where user equipment is detected according to the measurement configuration information received
Quality；
In each adjacent cell detected there are channel quality be more than the place cell channel quality in the case of,
The user equipment is determined using the optimal adjacent cell of channel quality in each adjacent cell as target handover cell；
The user equipment sends switching command to the corresponding source wireless net member of the place cell, so that the source wireless net member
Execute handoff procedure, wherein the letter of the corresponding Target Wireless network element in the target handover cell is carried in the switching command
Breath.
2. the method as described in claim 1, which is characterized in that the user equipment is wireless to the corresponding source of the place cell
After network element sends switching command, further include：
In the case where the source wireless net member completes handoff procedure, the user equipment receives what the source wireless net member was sent
Handoff completion message.
3. method as claimed in claim 1 or 2, which is characterized in that user equipment is believed according to the measuring configuration received
Breath detects the channel quality of each adjacent cell, including：
The user equipment judges that channel quality is more than whether the quantity of the default adjacent cell for measuring threshold value reaches preset quantity；
In the case where reaching the preset quantity, the user equipment stops the channel quality of detection adjacent cell.
4. a kind of method of switching cell, which is characterized in that including：
Source wireless net member receives the switching command that user equipment is sent, wherein it is small that target switching is carried in the switching command
The information of the corresponding Target Wireless network element in area；
The source wireless net member executes handoff procedure according to the information of the Target Wireless network element, to complete the user equipment
Cell switches.
5. method as claimed in claim 4, which is characterized in that the source wireless net member is according to the letter of the Target Wireless network element
Breath executes handoff procedure, including：
It whether there is direct-connected interface between the source wireless net member detection and the Target Wireless network element；
There are the direct-connected interface, the source wireless net member sends switching request to the Target Wireless network element and disappears
Breath, wherein carry the Target Wireless network element in the switching request and send the path turn to core network control surface entity
Change the bearer context information needed when request；After completing to switch, the source wireless net member, which receives, comes from the Target Wireless
The switching response message of network element；
There is no the direct-connected interface, the source wireless net member is sent to the core network control surface entity to be switched
Request message, wherein the bearer context information is carried in the switching request；After completing to switch, the source is wireless
Network element receives the switching response message from the core network control surface entity.
6. a kind of device of switching cell, which is characterized in that including：
Detection module, the channel quality of cell where the measurement configuration information detection received for basis and each adjacent cell
Channel quality；
Determining module, for there are the channels that channel quality is more than the place cell in each adjacent cell detected
In the case of quality, determine using the optimal adjacent cell of channel quality in each adjacent cell as target handover cell；
Sending module, for sending switching command to the corresponding source wireless net member of the place cell, so that the source wireless network
Member executes handoff procedure, wherein the corresponding Target Wireless network element in the target handover cell is carried in the switching command
Information.
7. device as claimed in claim 6, which is characterized in that further include：
Message reception module, in the case where the source wireless net member completes handoff procedure, receiving the source wireless net member
The handoff completion message of transmission.
8. device as claimed in claims 6 or 7, which is characterized in that
The detection module is specifically used for：Judge that channel quality is more than whether the quantity of the default adjacent cell for measuring threshold value reaches
Preset quantity, and in the case where reaching the preset quantity, stop the channel quality of detection adjacent cell.
9. a kind of device of switching cell, which is characterized in that including：
Order receiver module, the switching command for receiving user equipment transmission, wherein carry target in the switching command
The information of the corresponding Target Wireless network element in switching cell；
Handover module, for executing handoff procedure according to the information of the Target Wireless network element, to complete the user equipment
Cell switches.
10. device as claimed in claim 9, which is characterized in that the handover module includes：
Detection unit whether there is direct-connected interface for detecting between the Target Wireless network element；
First switch unit, for there are the direct-connected interface, sending switching to the Target Wireless network element and asking
Seek message, wherein carry the Target Wireless network element in the switching request and send the road to core network control surface entity
The bearer context information needed when diameter convert requests；After completing to switch, the switching from the Target Wireless network element is received
Response message；
Second switch unit, for there is no the direct-connected interface, being sent to the core network control surface entity
Switching request message, wherein the bearer context information is carried in the switching request；After completing to switch, receives and
From the switching response message of the core network control surface entity.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710157064.6A CN108632912A (en) | 2017-03-16 | 2017-03-16 | The method and apparatus of switching cell |
| PCT/CN2018/072317 WO2018166290A1 (en) | 2017-03-16 | 2018-01-12 | Cell handover method and apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710157064.6A CN108632912A (en) | 2017-03-16 | 2017-03-16 | The method and apparatus of switching cell |
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| CN108632912A true CN108632912A (en) | 2018-10-09 |
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| CN201710157064.6A Pending CN108632912A (en) | 2017-03-16 | 2017-03-16 | The method and apparatus of switching cell |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021232181A1 (en) * | 2020-05-18 | 2021-11-25 | Qualcomm Incorporated | Methods and apparatus for improving handover |
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| CN101355787A (en) * | 2007-07-24 | 2009-01-28 | 鼎桥通信技术有限公司 | Method for switching district |
| US20110021201A1 (en) * | 2009-07-27 | 2011-01-27 | Lg Electronics Inc. | Apparatus and method of determining mobility state in wireless communication system |
| US20140106752A1 (en) * | 2012-10-16 | 2014-04-17 | Marvell World Trade Ltd. | Inter-rat reselection in mobile communication systems |
| CN104469873A (en) * | 2013-09-25 | 2015-03-25 | 中兴通讯股份有限公司 | Cell switching method and device |
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- 2017-03-16 CN CN201710157064.6A patent/CN108632912A/en active Pending
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| CN101355787A (en) * | 2007-07-24 | 2009-01-28 | 鼎桥通信技术有限公司 | Method for switching district |
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| WO2021232181A1 (en) * | 2020-05-18 | 2021-11-25 | Qualcomm Incorporated | Methods and apparatus for improving handover |
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