CN105264959B - A kind of switching method and equipment - Google Patents
A kind of switching method and equipment Download PDFInfo
- Publication number
- CN105264959B CN105264959B CN201480000731.4A CN201480000731A CN105264959B CN 105264959 B CN105264959 B CN 105264959B CN 201480000731 A CN201480000731 A CN 201480000731A CN 105264959 B CN105264959 B CN 105264959B
- Authority
- CN
- China
- Prior art keywords
- user equipment
- micro
- macro
- cell
- heterogeneous network
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000005259 measurement Methods 0.000 claims description 21
- 238000004891 communication Methods 0.000 abstract description 22
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006855 networking Effects 0.000 description 3
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- 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
- H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
- H04W36/324—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data by mobility data, e.g. speed data
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
An embodiment of the present invention provides a kind of switching method and equipment, are related to wireless communication technology field.This method includes:The speed parameter of the user equipment of macrocell is accessed by acquisition；If the speed parameter of user equipment is less than or equal to first threshold, the switching that user equipment carries out macro small section in heterogeneous network is controlled；If the speed parameter of user equipment is more than first threshold, switching of the user equipment without macro small section in heterogeneous network is controlled.The embodiment of the present invention takes different switchover policy by the user equipment different to movement velocity, the user equipment that movement velocity is low speed is switched into Microcell from macrocell, user equipment by speed parameter for middling speed or high speed does not switch to Microcell from macrocell, to increase user equipment and internetwork communication quality, the communication performance of network is improved.
Description
Technical Field
The present invention relates to the field of wireless communications technologies, and in particular, to a handover method and device.
Background
With the development of LTE (Long Term Evolution ) technology, a macro-micro networking may be implemented by a macro cell and a micro cell, so that a UE (User Equipment) may pass through multiple micro cells when moving within a coverage area of the macro cell.
In the prior art, mobility parameters of all UEs are configured facing a base station, that is, the same mobility parameters are adopted for all UEs of the same base station, so that when a UE enters a coverage area of a microcell from a coverage area of a macrocell, a macro base station to which the macrocell belongs adopts the same handover strategy for all UEs, that is, the UEs entering the coverage area of the microcell are all handed over to the microcell, or the UEs entering the coverage area of the microcell are not handed over to the microcell.
However, because different UEs have different parameters and information in the moving process, when the handover method is adopted for all UEs, the communication quality between some UEs and the network side is reduced, and the moving performance of the network is reduced instead.
Disclosure of Invention
In order to solve the problems in the prior art, embodiments of the present invention provide a handover method and device. The technical scheme is as follows:
in a first aspect, a handover apparatus is provided, where the handover apparatus is applied to a heterogeneous network including a macro cell and at least one micro cell, and the apparatus includes:
an obtaining unit, configured to obtain a speed parameter of a user equipment accessing the macro cell;
a switching unit, configured to control the ue to perform macro-micro interval switching in the heterogeneous network when a speed parameter of the ue is less than or equal to a first threshold;
the switching unit is further configured to control the ue not to perform macro-micro interval switching in the heterogeneous network when the speed parameter of the ue is greater than the first threshold.
With reference to the first aspect, in a first possible implementation manner,
the switching unit is specifically configured to control the user equipment not to perform macro-micro interval switching in the heterogeneous network by adjusting a mobility parameter of the macro base station; or,
the user equipment is controlled not to switch between macro cells and micro cells in the heterogeneous network by issuing a micro cell list to the user equipment and indicating the user equipment not to measure the micro cells in the micro cell list; or,
and controlling the user equipment not to perform switching between macro and micro areas in the heterogeneous network by receiving the measurement report reported by the user equipment and ignoring the micro area in the measurement report.
With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner, the handover device further includes an adjusting unit, configured to notify the micro cell to adjust a first protection parameter, where the first protection parameter is used to reduce interference of the micro cell to the user equipment.
With reference to the first aspect, in a third possible implementation manner, the switching unit is specifically configured to:
determining the target micro cell according to the signal parameters of the at least one micro cell;
and after the target micro cell is determined, controlling the user equipment to be switched from the macro cell to the target micro cell.
With reference to the first aspect or the third possible implementation manner of the first aspect, in a fourth possible implementation manner, the adjusting unit is further configured to adjust a second protection parameter, where the second protection parameter is used to reduce interference of the macro cell to the user equipment.
In a second aspect, a handover method is provided, where the handover method is applied to a heterogeneous network including a macro cell and at least one micro cell, and the method includes:
acquiring a speed parameter of user equipment accessing the macro cell;
if the speed parameter of the user equipment is smaller than or equal to a first threshold value, controlling the user equipment to switch between macro and micro areas in the heterogeneous network;
and if the speed parameter of the user equipment is greater than the first threshold value, controlling the user equipment not to switch between macro and micro areas in the heterogeneous network.
With reference to the second aspect, in a first possible implementation manner, the controlling the ue not to perform the handover between macro and micro areas in the heterogeneous network includes:
controlling the user equipment not to switch between macro and micro areas in the heterogeneous network by adjusting the mobility parameters of the macro base station; or,
the user equipment is controlled not to switch between macro cells and micro cells in the heterogeneous network by issuing a micro cell list to the user equipment and indicating the user equipment not to measure the micro cells in the micro cell list; or,
and controlling the user equipment not to perform switching between macro and micro areas in the heterogeneous network by receiving the measurement report reported by the user equipment and ignoring the micro area in the measurement report.
With reference to the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner, after the controlling the ue not to perform the handover between macro and micro areas in the heterogeneous network, the method further includes:
and informing the micro cell to adjust a first protection parameter, wherein the first protection parameter is used for reducing the interference of the micro cell to the user equipment.
With reference to the second aspect, in a third possible implementation manner, the controlling the ue to perform the handover between macro and micro areas in the heterogeneous network includes:
determining the target micro cell from the at least one micro cell according to the signal parameters of the at least one micro cell;
after the target micro cell is determined, controlling the user equipment to be switched from the macro base station to the target micro cell.
With reference to the second aspect or the third possible implementation manner of the second aspect, in a fourth possible implementation manner, after the controlling the ue to perform the handover between macro and micro areas in the heterogeneous network, the method further includes:
adjusting a second protection parameter, where the second protection parameter is used to reduce interference of the macro cell to the user equipment.
The embodiment of the invention provides a switching method and equipment, which are characterized in that speed parameters of user equipment accessed to a macro cell are obtained; if the speed parameter of the user equipment is less than or equal to the first threshold value, controlling the user equipment to switch between macro and micro areas in the heterogeneous network; if the speed parameter of the user equipment is greater than the first threshold value, the user equipment is controlled not to switch between the macro cell and the micro cell in the heterogeneous network, different switching strategies are adopted for the user equipment with different speed parameters, the user equipment with low movement speed is switched from the macro cell to the micro cell, and the user equipment with medium speed or high speed is not switched from the macro cell to the micro cell, so that the communication quality between the user equipment and the network is improved, and the communication performance of the network is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart of a handover method according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a macro-micro networking according to a second embodiment of the present invention;
fig. 3 is a flowchart of a handover method according to a second embodiment of the present invention;
fig. 4 is a schematic structural diagram of a switching device according to a third embodiment of the present invention;
fig. 5 is a schematic structural diagram of another switching device according to a fourth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
An embodiment one of the present invention provides a handover method, where the handover method is applied to a heterogeneous network, where the heterogeneous network includes a macro cell and at least one micro cell, as shown in fig. 1, the method includes:
101. and acquiring the speed parameter of the user equipment accessing the macro cell.
102. And if the speed parameter of the user equipment is less than or equal to the first threshold, controlling the user equipment to perform macro-micro interval switching in the heterogeneous network.
103. And if the speed parameter of the user equipment is greater than the first threshold value, controlling the user equipment not to perform switching between the macro and micro areas in the heterogeneous network.
The embodiment of the invention provides a switching method, which comprises the steps of obtaining a speed parameter of user equipment accessed to a macro cell; if the speed parameter of the user equipment is less than or equal to the first threshold value, controlling the user equipment to switch between macro and micro areas in the heterogeneous network; if the speed parameter of the user equipment is greater than the first threshold value, the user equipment is controlled not to switch between the macro cell and the micro cell in the heterogeneous network, different switching strategies are adopted for the user equipment with different speed parameters, the user equipment with low movement speed is switched from the macro cell to the micro cell, and the user equipment with medium speed or high speed is not switched from the macro cell to the micro cell, so that the communication quality between the user equipment and the network is improved, and the communication performance of the network is improved.
In order to enable those skilled in the art to more clearly understand the technical solution provided by the embodiment of the present invention, a detailed description is given below of a handover method provided by the embodiment of the present invention through a specific second embodiment. In the second embodiment, for convenience of description, as shown in fig. 2, it is assumed that in the heterogeneous network, the number of macro base stations is 2, and the macro base stations are respectively a macro base station a and a macro base station B, the macro base station a is a base station to which the macro cell a belongs, the macro base station a may further have other macro cells except the macro cell a, a micro base station C is located under the coverage of the macro cell a, the micro base station C is a base station to which the micro cell C belongs, the UE is a user equipment accessing the macro cell a, and the UE is located under the coverage of both the micro cell C and the macro cell a. As shown in fig. 3, the method includes:
301. the macro base station acquires the speed parameter of the UE accessing the macro cell.
For example, the speed parameter may be obtained according to the number of cells that the UE has handed over within a predetermined time.
The macro base station a may obtain a History record (UE History Information) of the UE to obtain a speed parameter of the UE. The history may include information about the cells to which the UE has handed over, including the dwell time in each cell and the cell type. The cell types include very small, medium, and large, and here, the cells of the types "very small" and "small" may be determined as micro cells, and the cells of the types "medium" and "large" may be determined as macro cells.
Specifically, the obtaining the history of the UE may include, but is not limited to, the following obtaining manners:
(1) in this embodiment, if the UE is switched from the macro base station B to the macro base station a, the macro base station a may receive the history record sent by the macro base station B.
(2) And the macro base station A where the UE is located receives the history record sent by the UE.
According to the history of the UE, the specific process of obtaining the speed parameter of the UE may include:
specifically, the macro base station a may use the number of macro cells that have been handed over by the UE in a predetermined time as the number of cells that have been handed over in the predetermined time, that is, the macro base station a does not count the number of micro cells that have been handed over by the UE. Or,
the macro base station a may obtain the number of macro cells and the number of micro cells that have been switched by the UE within the predetermined time, multiply the number of micro cells by a coefficient, add the multiplied number to the number of macro cells, generate the number of cells that have been switched by the UE within the predetermined time, and use the number of cells as a speed parameter. Illustratively, the following formula may be utilized:
the number of the cells switched in the preset time is equal to the number of the macro cells switched in the preset time + the coefficient is equal to the number of the micro cells switched in the preset time. And acquiring a speed parameter according to the number of the switched cells in the preset time, wherein the coefficient is less than 1, and preferably, the coefficient can be 0.5.
In addition to the above manners, the macro base station a may also acquire the speed parameter of the UE by using other manners, which are not limited herein.
302. And the macro base station judges the numerical relationship between the speed parameter of the UE and the first threshold value and the second threshold value, and determines whether to control the UE to switch between macro and micro areas in the heterogeneous network.
Optionally, if the speed parameter of the UE is greater than the second threshold, determining that the UE is at a high speed, and performing 303 correspondingly; if the speed parameter of the UE is greater than the first threshold value and less than or equal to the second threshold value, determining that the UE is at a medium speed, and executing 304 correspondingly; if the speed parameter of the UE is less than or equal to the first threshold, the UE is determined to be at a low speed, and the process is correspondingly executed 305.
Specifically, the numerical relationship for determining whether the speed parameter of the UE is greater than the first threshold may specifically be:
the number of the switched cells in the preset time is larger than a second threshold value, and the UE is determined to be high-speed;
the number of the switched cells in the preset time is larger than a first threshold and smaller than or equal to a second threshold, and the UE is determined to be at a medium speed;
and determining that the UE is in low speed when the number of the switched cells in the preset time is less than or equal to a first threshold.
In addition, the macro base station can also control whether the UE is switched between macro and micro areas in the heterogeneous network by judging the numerical relationship between the speed parameter of the UE and the first threshold value.
303. And if the UE is judged to be high-speed, the macro base station controls the UE not to switch the macro-micro interval in the heterogeneous network, and the operation is finished.
Illustratively, since the user equipment measures a plurality of micro cells before cell handover, acquires the micro cells satisfying handover conditions, generates measurement reports, the handover conditions may be threshold values of mobility parameters of the base station, therefore, during cell handover, the macro base station a may adjust its mobility parameters, which may be TTT (Time to trigger), A3threshold (A3threshold, A3 event threshold), and elcic (enhanced Inter-cell interference coordination) parameters, such as CRE (Cell ranging extension), so that the micro Cell does not satisfy the handover condition, and only the micro Cell satisfying the handover condition is included in the measurement report of the UE, because the UE measurement report does not include the femto cell that satisfies the handover condition, the handover procedure cannot be triggered, so that the UE cannot be handed over from the macro cell to the femto cell.
304. And if the UE is judged to be in the medium speed, the macro base station controls the UE not to switch between the macro and micro areas in the heterogeneous network, and adjusts the first protection parameter, and the operation is finished.
Specifically, when the UE is under the coverage of the pico cell, but the macro base station serves the UE, the pico cell may cause a large interference to the UE, so that the macro base station a controls the user equipment not to perform macro-micro interval handover in the heterogeneous network by adjusting its mobility parameter, and in order to protect the medium-speed UE from the interference of the pico cell and reduce the link outage rate, the macro base station also needs to notify the pico base station to which the pico cell belongs to set a first protection parameter, that is, the macro base station notifies the subframe position scheduled by the pico base station UE, and indicates the pico cell not to schedule the subframes, thereby reducing the interference of the pico cell to the medium-speed UE. Specifically, the first protection parameter may be a blank frame position, and the blank frame position may be determined by using an ABS (empty subframe) technique, and a blank frame is reserved in an uplink channel or a downlink channel, or an uplink channel and a downlink channel of the pico cell, so as to reduce interference of the pico cell on the UE and ensure communication quality.
It should be noted that, in steps 303 and 304, the user equipment is controlled not to perform the macro-micro interval handover in the heterogeneous network, except that the macro base station controls the user equipment not to perform the macro-micro interval handover in the heterogeneous network by adjusting its own mobility parameter, the following method may also be used to control the user equipment not to perform the macro-micro interval handover in the heterogeneous network:
the macro base station A issues a micro cell list to the UE, and the UE is indicated not to measure micro cells in the micro cell list, so that a switching process to the micro cells cannot be triggered, and the user equipment is controlled not to switch between macro cells and micro cells in a heterogeneous network. Or if the UE measurement report received by the macro base station A contains the micro cell, the macro base station A ignores the micro cell in the measurement report, selects the macro cell as the target cell, and if only the micro cell exists in the measurement report, the handover is not performed, so that the user equipment is controlled not to perform the handover between the macro cell and the micro cell in the heterogeneous network. The macro base station a may also control the user equipment not to perform the handover between macro and micro cells in the heterogeneous network by using other manners, which is not limited herein.
In the macro-micro networking, when the moving UE passes through the micro cell at a medium speed, if the UE is handed over to the micro cell, a Ping-Pong Rate (PPR), a Radio Link Failure Rate (RLF), and a Handover Failure (HOF) may be caused because the medium speed UE stays in the micro cell for a short time. Therefore, the embodiment of the invention adopts a switching strategy of not switching the medium-speed UE to the microcell, and reduces the interference of the microcell to the UE by reserving blank frames in the uplink channel or the downlink channel or the uplink and downlink channels of the microcell, thereby ensuring the communication quality between the UE and the network.
305. And if the UE is judged to be in low speed, the macro base station selects the target micro cell, controls the UE to be switched from the macro cell to the target micro cell, adjusts the second protection parameter and ends.
Specifically, the macro base station configures handover parameters to the micro cell for the low-speed UE, preferably, a3 may be configured to be 2dB, and the TTT may be configured to be 320ms, so that the UE can report the qualified micro cell, and when the macro base station a receives a measurement report sent by the UE, the macro base station a determines a target micro cell from at least one micro cell according to a signal parameter of at least one micro cell in the measurement report, and switches the UE to the target micro cell. Illustratively, the signal parameter may be RSRP (Reference signal received Power). The macro base station a may select the micro cell with the highest RSRP as the target micro cell. And if the measurement report reported by the UE does not contain the microcell and only contains the macrocell, the macro base station selects a proper macrocell for switching.
In order to ensure that the interference of the micro cell is reduced after the UE is switched from the macro cell to the target micro cell, the macro base station a may further adjust a second protection parameter of the macro base station a, where the second protection parameter may be a blank frame position, and send a message to notify the micro cell, so as to instruct the micro cell to schedule the UE at the blank frame position of the macro base station after the UE is switched to the micro cell, and specifically, the message may be sent in a Handover preparation Request (Handover Request).
Because the mobile UE passes through the microcell at a low speed, if the mobile UE is not switched into the microcell, the microcell interferes with the communication between the UE and the macro base station because the UE has too long time under the coverage of the microcell, and the signal of the UE is interrupted, the embodiment of the invention adopts a switching strategy of switching the UE from the macrocell to the microcell with better signal quality, so that the UE communicates with the network side through the microcell, and the communication quality between the UE and the network is ensured.
The embodiment of the invention provides a switching method, which comprises the steps of obtaining a speed parameter of UE (user equipment) accessed to a macro base station; secondly, determining a switching strategy of the UE according to a numerical relation between the speed parameter of the UE and a first speed threshold value; and finally, based on the determined switching strategy, switching the UE from the macro cell to the target micro cell, adopting different switching strategies aiming at the UE with different speed parameters, switching the UE with low moving speed from the macro cell to the micro cell, not switching the UE with medium or high speed parameter from the macro cell to the micro cell, and reducing the interference on the UE by adopting a mode of setting protection parameters, thereby increasing the communication quality between the UE and the network and improving the communication performance of the network.
The embodiment of the invention provides a switching method, which comprises the steps of obtaining a speed parameter of user equipment accessed to a macro cell; if the speed parameter of the user equipment is less than or equal to the first threshold value, controlling the user equipment to switch between macro and micro areas in the heterogeneous network; if the speed parameter of the user equipment is greater than the first threshold value, the user equipment is controlled not to switch between the macro cell and the micro cell in the heterogeneous network, different switching strategies are adopted for the user equipment with different speed parameters, the user equipment with low movement speed is switched from the macro cell to the micro cell, and the user equipment with medium speed or high speed is not switched from the macro cell to the micro cell, so that the communication quality between the user equipment and the network is improved, and the communication performance of the network is improved.
In a third embodiment, as shown in fig. 4, a switching device 4 provided by the present invention includes:
an obtaining unit 41, configured to obtain a speed parameter of a user equipment accessing a macro cell;
a switching unit 42, configured to control the ue to perform macro-micro interval switching in the heterogeneous network if the speed parameter of the ue is less than or equal to a first threshold;
the handover unit 42 is further configured to control the ue not to perform handover between macro and micro cells in the heterogeneous network if the speed parameter of the ue is greater than the first threshold.
Alternatively to this, the first and second parts may,
the switching unit 42 is specifically configured to, when the speed parameter of the UE is greater than the first threshold, control the UE not to perform macro/micro inter-cell switching in the heterogeneous network by adjusting a mobility parameter of the macro base station; or,
the switching unit 42 is specifically configured to control the ue not to perform switching between macro and micro cells in the heterogeneous network by issuing a list of micro cells to the ue and instructing the ue not to measure micro cells in the list of micro cells; or,
the handover unit 42 is specifically configured to receive a measurement report reported by the ue, and ignore a pico cell in the measurement report, so as to control the ue not to perform handover between the macro cell and the pico cell in the heterogeneous network.
Optionally, the handover apparatus further includes an adjusting unit 43, configured to notify the micro cell to adjust a first protection parameter, where the first protection parameter is used to reduce interference of the micro cell to the user equipment.
Optionally, the handover unit 42 is specifically configured to determine a target micro cell according to the signal parameter of at least one micro cell;
and after the target micro cell is determined, controlling the user equipment to be switched from the macro cell to the target micro cell.
Optionally, the adjusting unit 43 is further configured to adjust a second protection parameter, where the second protection parameter is used to reduce interference of the macro cell to the user equipment.
The embodiment of the invention provides a switching device, which adopts different switching strategies aiming at user equipment with different speed parameters, switches the user equipment with low movement speed from a macro cell to a micro cell, and does not switch the user equipment with medium or high speed from the macro cell to the micro cell, thereby increasing the communication quality between the user equipment and a network and improving the communication performance of the network.
In a fourth embodiment, another electronic device 5 provided by the present invention is shown in fig. 5, where the user device 5 includes: a bus 51, and a processor 52, a memory 53 and an interface 54 connected to the bus, wherein the interface 54 is used for communication with other network elements; the memory 53 is used to store instructions 531; processor 52 executes instructions 531 for:
acquiring a speed parameter of user equipment accessing a macro cell;
if the speed parameter of the user equipment is less than or equal to the first threshold value, controlling the user equipment to switch between macro and micro areas in the heterogeneous network;
and if the speed parameter of the user equipment is greater than the first threshold value, controlling the user equipment not to perform switching between the macro and micro areas in the heterogeneous network.
Optionally, the processor 52 executing the instructions 531 is further configured to:
controlling the user equipment not to switch between macro and micro areas in the heterogeneous network by adjusting the mobility parameters of the macro base station; or,
the method comprises the steps that a micro cell list is issued to user equipment, and the user equipment is instructed not to measure micro cells in the micro cell list, so that the user equipment is controlled not to switch between macro cells and micro cells in a heterogeneous network; or,
the method comprises the steps of receiving a measurement report reported by user equipment, and neglecting a micro cell in the measurement report, and controlling the user equipment not to switch between macro and micro cells in a heterogeneous network.
Optionally, the processor 52 executing the instructions 531 is further configured to:
and informing the micro cell to adjust the first protection parameter, wherein the first protection parameter is used for reducing the interference of the micro cell to the user equipment.
Optionally, the processor 52 executing the instructions 531 is further configured to:
determining a target micro cell from at least one micro cell according to the signal parameters of at least one micro cell;
and after the target micro cell is determined, controlling the user equipment to be switched from the macro base station to the target micro cell.
Optionally, the processor 52 executing the instructions 531 is further configured to:
and adjusting a second protection parameter, wherein the second protection parameter is used for reducing the interference of the macro cell to the user equipment.
In this embodiment, the processor 52 may be a CPU (Central Processing Unit), and the memory 53 may be a high-speed Ram memory or a non-volatile memory.
The embodiment of the invention provides a switching device, which adopts different switching strategies aiming at user equipment with different speed parameters, switches the user equipment with low movement speed from a macro cell to a micro cell, and does not switch the user equipment with medium or high speed from the macro cell to the micro cell, thereby increasing the communication quality between the user equipment and a network and improving the communication performance of the network.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
It will be understood by those skilled in the art that all or part of the steps of implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A handover apparatus, wherein the handover apparatus is applied to a heterogeneous network, the heterogeneous network includes a macro cell and at least one micro cell, the handover apparatus is a macro base station, and the apparatus comprises:
an obtaining unit, configured to obtain a speed parameter of a user equipment accessing to the macro cell, where the speed parameter of the user equipment is the number of macro cells switched by the user equipment within a predetermined time, or the speed parameter of the user equipment is the sum of the number of micro cells switched by the user equipment within the predetermined time multiplied by a coefficient and the number of macro cells;
a switching unit, configured to control the ue to perform macro-micro interval switching in the heterogeneous network when a speed parameter of the ue is less than or equal to a first threshold;
the switching unit is further configured to control the ue not to perform macro-micro interval switching in the heterogeneous network when the speed parameter of the ue is greater than the first threshold.
2. The apparatus of claim 1,
the switching unit is specifically configured to control the user equipment not to perform macro-micro interval switching in the heterogeneous network by adjusting a mobility parameter of the macro base station; or,
the handover unit is specifically configured to control the ue not to perform handover between macro and micro cells in the heterogeneous network by issuing a list of micro cells to the ue and indicating that the ue does not measure micro cells in the list of micro cells; or,
the handover unit is specifically configured to control the ue not to perform handover between macro and micro cells in the heterogeneous network by receiving a measurement report reported by the ue and ignoring a micro cell in the measurement report.
3. The apparatus according to claim 1 or 2, wherein the handover apparatus further comprises an adjusting unit configured to notify the micro cell to adjust a first protection parameter, where the first protection parameter is used to reduce interference of the micro cell to the user equipment.
4. The device according to claim 1, wherein the switching unit is specifically configured to:
determining a target micro cell according to the signal parameters of the at least one micro cell;
and after the target micro cell is determined, controlling the user equipment to be switched from the macro cell to the target micro cell.
5. The apparatus according to claim 1 or 4, wherein the handover apparatus further comprises an adjusting unit configured to adjust a second protection parameter, and the second protection parameter is used to reduce interference of the macro cell to the user equipment.
6. A handover method, wherein the handover method is applied to a heterogeneous network including a macro cell and at least one micro cell, and wherein the method is performed by a macro base station, and wherein the method comprises:
acquiring a speed parameter of user equipment accessed to the macro cell, wherein the speed parameter of the user equipment is the number of the macro cells switched by the user equipment in a preset time, or the speed parameter of the user equipment is the sum of the number of the micro cells switched by the user equipment in the preset time multiplied by a coefficient and the number of the macro cells;
if the speed parameter of the user equipment is smaller than or equal to a first threshold value, controlling the user equipment to switch between macro and micro areas in the heterogeneous network;
and if the speed parameter of the user equipment is greater than the first threshold value, controlling the user equipment not to switch between macro and micro areas in the heterogeneous network.
7. The method of claim 6, wherein the controlling the UE not to perform the inter-macro-micro handover in the heterogeneous network comprises:
controlling the user equipment not to switch between macro and micro areas in the heterogeneous network by adjusting the mobility parameters of the macro base station; or,
the user equipment is controlled not to switch between macro cells and micro cells in the heterogeneous network by issuing a micro cell list to the user equipment and indicating the user equipment not to measure the micro cells in the micro cell list; or,
and controlling the user equipment not to perform switching between macro and micro areas in the heterogeneous network by receiving the measurement report reported by the user equipment and ignoring the micro area in the measurement report.
8. The method according to claim 6 or 7, wherein after the controlling the UE not to perform the inter-macro-micro handover in the heterogeneous network, the method further comprises:
and informing the micro cell to adjust a first protection parameter, wherein the first protection parameter is used for reducing the interference of the micro cell to the user equipment.
9. The method of claim 6, wherein the controlling the UE to perform the inter-macro-micro handover in the heterogeneous network comprises:
determining the target micro cell from the at least one micro cell according to the signal parameters of the at least one micro cell;
after the target micro cell is determined, controlling the user equipment to be switched from the macro base station to the target micro cell.
10. The method according to claim 6 or 9, wherein after the controlling the ue to perform the handover between macro and micro areas in the heterogeneous network, the method further comprises:
adjusting a second protection parameter, where the second protection parameter is used to reduce interference of the macro cell to the user equipment.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2014/076495 WO2015165041A1 (en) | 2014-04-29 | 2014-04-29 | Handover method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105264959A CN105264959A (en) | 2016-01-20 |
| CN105264959B true CN105264959B (en) | 2018-11-13 |
Family
ID=54358002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480000731.4A Active CN105264959B (en) | 2014-04-29 | 2014-04-29 | A kind of switching method and equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105264959B (en) |
| WO (1) | WO2015165041A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105554829B (en) * | 2016-01-29 | 2019-05-21 | 华中科技大学 | A kind of base station selecting method when macro base station and Home eNodeB switch |
| CN107155202A (en) * | 2017-04-06 | 2017-09-12 | 深圳市金立通信设备有限公司 | A kind of method and terminal of control network switching |
| WO2021038863A1 (en) * | 2019-08-30 | 2021-03-04 | ソニー株式会社 | Determination device, determination method, and determination program |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1802006A (en) * | 2005-01-05 | 2006-07-12 | 华为技术有限公司 | Interlaminar switching method in WCDMA hierarchical network |
| CN1852562A (en) * | 2005-08-02 | 2006-10-25 | 上海华为技术有限公司 | Switching-over method based on moving speed |
| CN1859726A (en) * | 2005-07-18 | 2006-11-08 | 上海华为技术有限公司 | Method for realizing user's terminal switching in layered cells |
| CN102905324A (en) * | 2011-07-25 | 2013-01-30 | 华为技术有限公司 | Cell replacement method and device |
| CN103415029A (en) * | 2013-08-28 | 2013-11-27 | 重庆邮电大学 | Mobility management method in heterogenous network |
-
2014
- 2014-04-29 WO PCT/CN2014/076495 patent/WO2015165041A1/en active Application Filing
- 2014-04-29 CN CN201480000731.4A patent/CN105264959B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1802006A (en) * | 2005-01-05 | 2006-07-12 | 华为技术有限公司 | Interlaminar switching method in WCDMA hierarchical network |
| CN1859726A (en) * | 2005-07-18 | 2006-11-08 | 上海华为技术有限公司 | Method for realizing user's terminal switching in layered cells |
| CN1852562A (en) * | 2005-08-02 | 2006-10-25 | 上海华为技术有限公司 | Switching-over method based on moving speed |
| CN102905324A (en) * | 2011-07-25 | 2013-01-30 | 华为技术有限公司 | Cell replacement method and device |
| CN103415029A (en) * | 2013-08-28 | 2013-11-27 | 重庆邮电大学 | Mobility management method in heterogenous network |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105264959A (en) | 2016-01-20 |
| WO2015165041A1 (en) | 2015-11-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101622792B1 (en) | Method and apparatus for handover in wireless communication system | |
| US8977268B2 (en) | Methods and systems for controlling handovers in a co-channel network | |
| JP6551236B2 (en) | Machine-to-machine (M2M) terminal, base station, method, and program | |
| EP2974454B1 (en) | Methods and apparatuses for handling a handover event | |
| CN104080118B (en) | The method, apparatus and system of biasing adjustment about cell coverage expansion | |
| CN109495935B (en) | Switching method, base station and user terminal | |
| EP2509353B1 (en) | Method and system for managing neighboring cell information | |
| US20140302853A1 (en) | Network node, user equipment, methods therein, computer programs and computer-readable storage mediums to expand or shrink a coverage area of a cell | |
| WO2015017159A2 (en) | Predictive mobility in cellular networks | |
| KR20150041021A (en) | User mobility control for heterogeneous wireless networks | |
| KR20150089891A (en) | Method and apparatus for resource allocation in a heterogeneous network system | |
| CN110636567B (en) | Method, device and base station for evaluating and reporting switching | |
| US20190007872A1 (en) | A Wireless Device and Method for Triggering Cell Reselction | |
| WO2015179309A1 (en) | Mobility robustness optimization for heterogeneous and small cell networks | |
| CN111294825B (en) | Signal measurement control method and device, storage medium and terminal | |
| KR20190012096A (en) | Methods for controlling measurement process in RRC IDLE mode and Apparatuses thereof | |
| CN105264959B (en) | A kind of switching method and equipment | |
| EP2869636A1 (en) | Mobility control method and device | |
| JP6368315B2 (en) | Wireless telecommunications cell detection technology | |
| EP2999269B1 (en) | Cell-based processing method, system, and related apparatus | |
| CN113115325A (en) | Wireless network quality optimization method and device | |
| Peng et al. | Mobility performance enhancements for LTE-Advanced heterogeneous networks | |
| EP2991401B1 (en) | Transmission of old and new system information of a target base station in a handover | |
| Zhou et al. | Evaluation of mobility performance in 3GPP heterogeneous networks | |
| US10034248B2 (en) | Time pattern of transmission power in cell group using same frequency band |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |