CN114071588B - Cell directional switching method and device - Google Patents
Cell directional switching method and device Download PDFInfo
- Publication number
- CN114071588B CN114071588B CN202010746571.5A CN202010746571A CN114071588B CN 114071588 B CN114071588 B CN 114071588B CN 202010746571 A CN202010746571 A CN 202010746571A CN 114071588 B CN114071588 B CN 114071588B
- Authority
- CN
- China
- Prior art keywords
- cell
- target
- determining
- nsa
- original
- 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 41
- 238000005259 measurement Methods 0.000 claims abstract description 142
- 230000006855 networking Effects 0.000 claims description 32
- 238000004590 computer program Methods 0.000 claims description 11
- 238000003860 storage Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 3
- 230000000977 initiatory effect Effects 0.000 claims description 3
- 230000006870 function Effects 0.000 description 34
- 230000009977 dual effect Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 238000012216 screening Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Images
Classifications
-
- 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
- H04W36/0069—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink
- H04W36/00698—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink using different RATs
-
- 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
- H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
-
- 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
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
- H04W36/304—Reselection being triggered by specific parameters by measured or perceived connection quality data due to measured or perceived resources with higher communication quality
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the invention provides a cell directional switching method and device, which are applied to a base station, wherein the method comprises the following steps: detecting a target terminal in a non-anchor original cell, wherein the target terminal is a terminal supporting a double-link function; determining a target cell based on at least one cell adjacent to the original cell; configuring measurement information of the target cell, wherein the measurement information comprises preset frequency point information aiming at the target cell; sending a measurement request to the target terminal, wherein the measurement request carries the measurement information; acquiring a measurement report returned by the target terminal based on the preset frequency point information; determining a target anchor point cell according to the measurement report; and controlling the target terminal to switch to the target anchor point cell. The embodiment of the invention can rapidly and accurately switch the terminal supporting the double-link function to the target anchor point cell, and can improve the accuracy and efficiency of cell switching.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a cell directional handover method and apparatus.
Background
In the early stage of 5G (5 th generation mobile networks, fifth generation mobile communication technology) network construction, network construction is generally performed by using an NSA (non-independent) networking mode. The NSA networking mode refers to deployment of a 5G network based on the existing 4G (4G th generation mobile networks, fourth generation mobile communication technology) device, that is, a 4G core network, a 4G wireless network, and a 5G wireless network are used.
The 5G base station in NSA networking mode has no independent signaling surface, and works by depending on the 4G base station and the 4G core network, so that an anchor point cell is pushed out from the 4G side, thereby providing service for a terminal supporting an EN-DC (EUTRA-NR Dual Connection ) function, wherein the EN-DC refers to dual connection with 4G as a main node and 5G as an auxiliary node. But there are not only 4G anchor cells on the 4G side but also other cells that are not turned on or do not support the dual connectivity function.
In the prior art, when an EN-DC terminal needs to switch from another cell which is not turned on or does not support the dual link function to a 4G anchor cell, a coverage switching-based manner is required to be adopted to switch the cell, that is, the EN-DC terminal moves to an edge area with a poor signal in a current cell, so that the switching of the target 4G anchor cell can be realized, and the cell switching manner is very inconvenient and has low switching speed.
In addition, in the prior art, RSRP (Reference Signal Receiving Power, reference signal received power) values of all neighboring cells are measured at the 4G side, and a cell corresponding to an optimal measurement value of the measurement values is determined as a target cell, so that handover of the target cell is realized.
Disclosure of Invention
The embodiment of the invention provides a cell directional switching method and device, which can rapidly and accurately switch NSA terminals to anchor cells and can improve the accuracy and efficiency of cell switching.
The embodiment of the invention provides a cell directional switching method which is applied to a base station and comprises the following steps:
detecting a target terminal in a non-anchor original cell, wherein the target terminal is a terminal supporting a double-link function;
determining a target cell based on at least one cell adjacent to the original cell;
configuring measurement information of the target cell, wherein the measurement information comprises preset frequency point information aiming at the target cell;
Sending a measurement request to the target terminal, wherein the measurement request carries the measurement information;
acquiring a measurement report returned by the target terminal based on the preset frequency point information;
determining a target anchor point cell according to the measurement report;
and controlling the target terminal to switch to the target anchor point cell.
The embodiment of the invention provides a cell directional switching device which is applied to a base station and comprises the following components:
the detection module is used for detecting a target terminal in a non-anchor original cell, wherein the target terminal is a terminal supporting a double-link function;
a first determining module, configured to determine a target cell based on at least one cell adjacent to the original cell;
the configuration module is used for configuring measurement information of the target cell, wherein the measurement information comprises preset frequency point information aiming at the target cell;
the sending module is used for sending a measurement request to the target terminal, wherein the measurement request carries the measurement information;
the acquisition module is used for acquiring a measurement report returned by the target terminal based on the preset frequency point information;
the second determining module is used for determining a target anchor point cell according to the measurement report;
And the switching module is used for controlling the target terminal to switch to the target anchor point cell.
The embodiment of the invention has the following advantages:
the embodiment of the invention can determine the target cell based on at least one cell adjacent to the original cell under the condition that the target terminal in the original cell which is not an anchor point is a terminal supporting the double-link function, initiate special measurement for the target cell to the target terminal, acquire a measurement report returned for the special measurement, and determine the target anchor point cell based on the measurement report, thereby realizing the rapid directional switching of the target terminal to the target anchor point cell and improving the efficiency of establishing double-link between the target terminal and the NSA cell.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments of the present invention will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 shows a flow chart of an embodiment of a cell directed handover method of the present invention;
Fig. 2 shows a block diagram of an embodiment of a cell-directed handover apparatus according to the present invention;
fig. 3 shows a block diagram of another embodiment of a cell-directed handover device according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Method embodiment one
Referring to fig. 1, a flowchart of a first embodiment of a cell directional handover method of the present invention is shown, and the flowchart is applied to a base station, and may specifically include:
104, sending a measurement request to the target terminal, wherein the measurement request carries the measurement information;
and step 107, controlling the target terminal to switch to the target anchor point cell.
In practical application, the area covered by the base station antenna is called a cell, the base station corresponds to one or more cells, and the terminals in the cells can communicate with the base station through a wireless channel. In addition, the frequency point is used as an important configuration parameter of the cell, and each cell is allocated with preset frequency point information.
The terminal specifically includes, but is not limited to: smart phones, tablet computers, e-book readers, MP3 (dynamic video expert compression standard audio plane 3,Moving Picture Experts GroupAudio Layer III) players, MP4 (dynamic video expert compression standard audio plane 4,Moving Picture Experts GroupAudio Layer IV) players, laptop portable computers, car computers, desktop computers, set-top boxes, smart televisions, wearable devices, and the like.
The existing communication network is in a coexistence of a 4G network and a 5G network. The initial stage of 5G network construction adopts an NSA (non-stand alone) networking mode, where the NSA networking mode refers to deployment of a 5G network based on an existing 4G base station, and specifically, the 4G base station independently deploys a control plane (4G base station carries control signaling), and the 5G base station and the 4G base station jointly deploy a user plane (5G base station and 4G base station carry user plane data) or the 5G base station independently deploys a user plane (only the 5G base station carries user plane data). In the NSA networking mode, a 4G base station is used as a main node, and a link established by using a 5G base station as an auxiliary node is called a double link, which is also called EN-DC, and the network transmission rate of a terminal can be improved through the double link. It should be noted that, the terminal supporting the dual link function refers to a terminal capable of operating in NSA networking mode, and the dual link function is also called EN-DC function.
The cell directional switching method can be applied to the 4G base station in NSA networking mode and the 4G base station in non-NSA networking mode. The 4G base station comprises a cell supporting a double-link function and a cell not opening the double-link function in an NSA networking mode; the 4G base station comprises cells which do not support the dual link function in the non-NSA networking mode, such as a 3D-MIMO (Multi-Input Multi-Output) cell and a TDD (time Division Duplexing, time division Duplex) cell.
In the NSA networking mode, the cell supporting the dual link function corresponding to the 4G base station side is also called a 4G anchor cell or an anchor cell, and the cell corresponding to the 5G base station side is also called an NSA cell.
Optionally, the non-anchor original cell includes: a cell which does not support the double-link function in the non-NSA networking mode, namely a first original cell; the cells with double-link function are not opened in NSA networking mode, namely the second original cells.
The embodiment of the invention can directionally switch the terminal supporting the double-link function in the first original cell to the anchor point cell in a cell switching mode between 4G base stations, or directionally switch the terminal supporting the double-link function in the second original cell to the anchor point cell in a cell switching mode in the base stations, so that the terminal supporting the double-link function can finish directional switching aiming at the anchor point cell, and further control the terminal supporting the double-link function to establish double-link with an NSA cell at the 5G base station side under the NSA networking mode, thereby obtaining higher network transmission rate.
When a terminal enters a non-anchor original cell, a base station corresponding to the original cell detects the terminal, when the terminal is detected to be a terminal supporting double-link capability, the terminal is determined to be a target terminal, and a target cell is determined based on at least one cell adjacent to the original cell. The preset frequency point information of the target cell is different from that of the original cell, namely, the target cell and the original cell are different-frequency cells.
According to the preset frequency point information of the target cell, configuring measurement information aiming at the target cell, wherein the measurement information comprises the preset frequency point information aiming at the target cell. And the base station corresponding to the original cell sends a measurement request carrying the measurement information to the target terminal, so that the target terminal can be controlled to initiate special measurement to the target cell according to the preset frequency point information.
The base station corresponding to the original cell acquires a measurement report returned by the target terminal based on special measurement, wherein the measurement report comprises physical cell identification information corresponding to the target cell and a reference signal receiving power value, and the base station corresponding to the original cell is configured with a preset threshold value. And determining a target anchor point cell based on the physical cell identification information, the reference signal receiving power value and a preset threshold value of a base station side corresponding to the target cell. The base station corresponding to the original cell controls the target terminal to switch to the target anchor cell, the target anchor cell is a cell supporting a double-link function in an NSA networking mode, and the target terminal is controlled to switch from the original cell without an anchor to the target anchor cell by determining the target anchor cell, so that the target terminal and the NSA cell can be further controlled to establish double-link, and the network transmission rate of the target terminal is improved
Therefore, under the condition that the target terminal in the original cell which is not an anchor point is a supported terminal, the embodiment of the invention can determine the target cell based on at least one cell adjacent to the original cell, initiate special measurement for the target cell to the target terminal, acquire a measurement report returned for the special measurement, and determine the target anchor point cell based on the measurement report, thereby realizing the rapid directional switching of the target terminal to the target anchor point cell and further improving the efficiency of establishing double links between the target terminal and the NSA cell.
The embodiment of the invention can switch the terminal supporting the double-link function in the first original cell to the anchor cell in a mode of cell switching between the 4G base stations, or switch the terminal supporting the double-link function in the second original cell to the anchor cell in a mode of cell switching in the base stations.
In an alternative embodiment of the present invention, the non-anchor original cell includes: the first primary cell in non-NSA networking mode.
Optionally, determining the target cell in step 102 based on at least one cell adjacent to the original cell includes:
A first target cell is determined in at least one cell adjacent to the first original cell.
Optionally, the measurement report includes a first reference signal receiving power value and a first physical cell identifier of a first neighboring cell, where the first neighboring cell is adjacent to the first original cell, and a frequency point of the first neighboring cell accords with the preset frequency point information.
The first target cell refers to an anchor cell adjacent to the first original cell, and the first target cell may include one or more. For example, the cells adjacent to the first original cell include a cell a, a cell B, a cell C, a cell D, and a cell E, and the anchor cell adjacent to the first original cell includes a cell a, a cell B, and a cell E.
And configuring special measurement according to the first target cell (anchor cell), wherein measurement information of the special measurement comprises preset frequency point information of the cell A, the cell B and the cell E. And sending a measurement request carrying preset frequency point information of the first target cell to a target terminal, wherein a base station corresponding to the first original cell controls the target terminal, and performs measurement operation on cells, which are adjacent to the first original cell and have frequency points consistent with the preset frequency point information, such as a cell A, a cell B, a cell C and a cell E, which are consistent with the preset frequency point information of the first target cell, and then the target terminal performs measurement operation on the cell A, the cell B, the cell C and the cell E, wherein the cell A, the cell B, the cell C and the cell E are first adjacent cells.
It should be noted that, the preset frequency point information of the first target cell is different from the frequency point information of the first original cell, so that the first target cell and the first original cell are different frequency cells, and the initiation of the dedicated measurement to the first target cell is referred to as the different frequency dedicated measurement.
The base station corresponding to the first original cell obtains a measurement report returned by the target terminal based on the preset frequency point information, wherein the measurement report comprises a first reference signal receiving power value and a first Physical Cell Identifier (PCI) of a first adjacent cell, and for example, the measurement report respectively comprises a first reference signal receiving power value and a first physical cell identifier corresponding to a cell a, a cell B, a cell C and a cell E.
Optionally, determining the target anchor cell according to the measurement report in step 106 includes:
step S11, comparing the first physical cell identifier in the measurement report with a neighbor cell table in the base station to obtain a first comparison result;
step S12, determining a first measurement report corresponding to the first target cell according to the first comparison result;
step S13, determining a target anchor point cell in the first target cell according to a first preset threshold value and a first reference signal receiving power value in the first measurement report.
And each base station stores a neighbor cell table which is deployed in the base station in advance by a person skilled in the art, wherein the neighbor cell table comprises anchor point cell information adjacent to each cell in the base station. And comparing the first physical cell identifier in the measurement report with a neighbor cell table in the base station to obtain a first comparison result, wherein the first comparison result is used for screening to obtain an anchor cell adjacent to a first original cell, namely a first target cell, in a first adjacent cell, and screening to obtain a first measurement report corresponding to the first target cell. For example, the measurement report includes a first reference signal receiving power value and a first physical cell identifier corresponding to a cell a, a cell B, a cell C, and a cell E, and the cell a, the cell B, and the cell E are determined to be anchor cells of a first original cell by comparing the first physical cell identifier in the measurement report with a neighbor cell table in the base station, and a first measurement report corresponding to the cell a, the cell B, and the cell E is obtained.
Optionally, the base station performs a sorting operation on the first reference signal received power value. The sorting operation is, for example, sorting from large to small according to the numerical size, and the present invention is not limited to the sorting operation.
The base station corresponding to the first original cell stores a first preset threshold preset by a person skilled in the art, the first preset threshold is used for screening a first reference signal receiving power value meeting requirements in the first measurement report, and the first preset threshold is set by the person skilled in the art according to service requirements, so that the invention is not limited. For example, if the first reference signal receiving power values of the cell a and the cell B are within the first preset threshold range, and the first reference information receiving power value of the cell E is not within the first preset threshold range, the cell E does not meet the threshold requirement, and the base station ranks the first reference signal receiving power values in the first measurement report from large to small as follows: the first reference signal received power value of cell a is greater than the first reference signal received power value of cell B, and then, in the first target cell: and determining the target anchor point cell as the cell A in the cell A, the cell B and the cell E. The base station triggers switching operation to control the target terminal to be switched from a first original cell to the target anchor point cell (cell A), so that the target terminal can further establish double links with an NSA cell, and the network transmission rate of the target terminal is improved.
In an alternative embodiment of the present invention, the non-anchor original cell includes: the second original cell with double-link function is not started in NSA networking mode.
Optionally, determining the target cell in step 102 based on at least one cell adjacent to the original cell includes:
step S21, determining a candidate cell in at least one cell adjacent to the second original cell, wherein the candidate cell meets the following conditions: the candidate cell supports a double-link function, the coverage area of the candidate cell is the same as that of the second original cell, the candidate cell and the second original cell are different in frequency, and a base station corresponding to the candidate cell is the same as a base station corresponding to the second original cell;
step S22, determining NSA cells different in frequency from the second original cell in NSA cells adjacent to the candidate cell;
and step S23, determining the NSA cell with the different frequency from the second original cell as a second target cell.
The candidate cell refers to an anchor cell satisfying the condition in step S21 in NSA networking mode. And determining the NSA cell which is different in frequency from the second original cell in NSA adjacent to the candidate cell as a second target cell. For example, the anchor cell adjacent to the second original cell includes a cell a, a cell B, a cell C, and a cell D, and the cell where the anchor cell satisfies the above condition includes: and determining the cell A and the cell B as candidate cells. The NSA cells adjacent to the candidate cell respectively comprise a cell A: cell A1 and cell A2; cell B: a cell B1 and a cell B3, where a cell different from the second original cell in the adjacent NSA cell includes: cell A1, cell A2, and cell B1. Then, the cell A1, the cell A2 and the cell B1 are determined as a second target cell, and the second target cell is adjacent to the candidate cell.
And configuring special measurement according to the second target cell, wherein measurement information of the special measurement comprises preset frequency point information of the cell A1, the cell A2 and the cell B1. And sending a measurement request carrying preset frequency point information of the second target cell to a target terminal, and controlling the target terminal to initiate special measurement of the different system for the second target cell. The second neighboring cell is an NSA cell in the NSA networking mode, and a frequency point of the second neighboring cell accords with the preset frequency point information, for example, the NSA cell in the NSA networking mode includes a cell A1, a cell A2, a cell B1, a cell B3, a cell C2 and a cell D1, where the frequency points of the cell A1, the cell A2, the cell B1 and the cell C2 are consistent with the preset frequency point information, and the target terminal performs a measurement operation on the cell A1, the cell A2, the cell B1 and the cell C2, and the cell A1, the cell A2, the cell B1 and the cell C2 are the second neighboring cells.
Optionally, the measurement report includes a second physical cell identifier of a second neighboring cell, where the second neighboring cell is an NSA cell in the NSA networking mode, and a frequency point of the second neighboring cell accords with the preset frequency point information.
The base station corresponding to the second original cell acquires a measurement report returned by the target terminal based on the preset frequency point information, wherein the measurement report comprises second physical cell identifiers of second adjacent cells, for example, the measurement report respectively comprises second physical cell identifiers corresponding to a cell A1, a cell A2, a cell B1 and a cell C2.
Optionally, determining the target anchor cell according to the measurement report in step 106 includes:
step S31, comparing the second physical cell identifier in the measurement report with a neighbor cell table in the base station to obtain a second comparison result;
step S32, determining a target NSA cell according to the second comparison result and the measurement report;
and step S33, determining the candidate cell corresponding to the target NSA cell as a target anchor cell.
And each base station stores a neighbor cell table which is deployed in the base station in advance by a person skilled in the art, wherein the neighbor cell table comprises NSA cell information adjacent to each cell in the base station. Comparing the second physical cell identifier in the measurement report with a neighbor cell table in the base station to obtain a second comparison result, wherein the second comparison result is used for screening a second target cell adjacent to the candidate cell from the second neighbor cell, and for example, the measurement report comprises second physical cell identifiers corresponding to the cell A1, the cell A2, the cell B1 and the cell C2, and the cell A1, the cell A2 and the cell B1 are determined to be the second target cell by comparing the second physical cell identifiers in the measurement report with the neighbor cell table in the base station.
And determining a target NSA cell according to the second comparison result, wherein examples are as follows: and according to the second comparison result, the cell A1, the cell A2 and the cell B1 are second target cells, and according to the measurement report, the cell A1 is the first measured NSA cell, and the cell A1 is determined to be the target NSA cell.
And determining the candidate cell corresponding to the target NSA cell as a target anchor cell, wherein examples are as follows: and determining the candidate cell (cell A) corresponding to the cell A1 as a target anchor point cell.
And triggering switching operation by the base station, controlling the target terminal to be switched from a second original cell to the target anchor point cell in a blind way, thereby further establishing double links with the target NSA cell and improving the network transmission rate of the target terminal.
In an alternative embodiment of the present invention, after the determining the target NSA cell in step 106, the method further includes:
and writing the cell information of the target NSA cell into a candidate cell information list.
In an optional embodiment of the present invention, after the controlling the target terminal to switch to the target anchor cell in step 107, the method further includes:
and controlling the target anchor point cell to establish double links with the target NSA cell according to the cell information of the target NSA cell in the candidate cell list.
After the base station corresponding to the second original cell determines the target NSA cell, the cell information of the target NSA cell is written into a candidate cell list (Candidate CellInfo List) of the second original cell. When the target terminal is switched to the target anchor cell, the second original cell sends a switching request to the target anchor cell, wherein the switching request carries the candidate cell list, and the candidate cell list is used for controlling the target terminal to be switched to the target anchor cell and automatically establishing a double link with the target NSA cell.
Optionally, after the NSA terminal fails to switch the anchor cell, the preset frequency point information and the preset priority information corresponding to the anchor cell are carried in an RRC (Radio Resource Control ) connection release message, so as to control the NSA terminal to quickly switch from an idle state to the anchor cell. The RRC connection release message is sent to the terminal by the base station through the network and is used for notifying the terminal to release RRC connection and radio resources, so that the connection state is left, and the anchor point cell selection is carried out again.
In an optional embodiment of the present invention, after the controlling the target terminal to switch to the target anchor cell in step 107, the method further includes:
step S41, counting the switching times information of the target terminal to the target anchor point cell and the switching success rate information;
step S42, outputting the switching times information and the switching success rate information.
The switching times information includes, but is not limited to, NSA terminal directional switching out request times, NSA terminal directional switching out success times, NSA terminal directional switching in request times and NSA terminal directional switching in success times.
The output switching times information and the switching success rate information can be used as reference information to provide switching movement data of an NSA terminal for a person skilled in the art, so as to assist the person skilled in the art to perform network optimization and adjustment operation of cell deployment, for example, if the switching amount of a target anchor cell A is large, the person skilled in the art can reasonably promote priority information of the target anchor cell A at a base station side according to the counted switching times information of the target anchor cell A and further switching success rate information, and therefore when the NSA terminal needs to switch the anchor cell, the base station can control the NSA cell to be quickly switched to the anchor cell according to the priority information, and the directional switching efficiency is improved. The priority information may be flexibly set by a person skilled in the art according to preset frequency point information of the anchor cell.
In summary, the embodiment of the invention can determine the target cell based on at least one cell adjacent to the original cell under the condition that the target terminal in the original cell which is not an anchor point is a terminal supporting the double-link function, initiate special measurement for the target cell to the target terminal, acquire a measurement report returned for the special measurement, and determine the target anchor point cell based on the measurement report, thereby realizing the rapid directional switching of the target terminal to the target anchor point cell, improving the accuracy and efficiency of cell switching, and further improving the accuracy and efficiency of establishing double-link between the target terminal and the NSA cell. In addition, the invention can also improve the efficiency of network optimization and cell deployment for the technicians in the field according to the switching times information and the switching success rate information.
Device embodiment
Referring to fig. 2, there is shown a block diagram of an embodiment of a cell directional handover apparatus of the present invention, applied to a base station, the apparatus may specifically include:
a detection module 201, configured to detect a target terminal in a non-anchor original cell, where the target terminal is a terminal supporting a dual link function;
a first determining module 202, configured to determine a target cell based on at least one cell adjacent to the original cell;
A configuration module 203, configured to configure measurement information of the target cell, where the measurement information includes preset frequency point information for the target cell;
a sending module 204, configured to send a measurement request to the target terminal, where the measurement request carries the measurement information;
an obtaining module 205, configured to obtain a measurement report returned by the target terminal based on the preset frequency point information;
a second determining module 206, configured to determine a target anchor cell according to the measurement report;
and the switching module 207 is configured to control the target terminal to switch to the target anchor cell.
Optionally, the non-anchor original cell includes: the first original cell in non-NSA networking mode,
the first determining module 202 includes:
and the first target cell determining sub-module is used for determining a first target cell in at least one cell adjacent to the first original cell.
Optionally, the measurement report includes a first reference signal receiving power value and a first physical cell identifier of a first neighboring cell, where the first neighboring cell is adjacent to the first original cell, and a frequency point of the first neighboring cell accords with the preset frequency point information,
The second determining module 206 includes:
the first comparison sub-module is used for comparing the first physical cell identifier in the measurement report with a neighbor cell table in the base station to obtain a first comparison result;
a measurement report determining sub-module, configured to determine a first measurement report corresponding to the first target cell according to the first comparison result;
and the first target anchor point cell determining submodule is used for determining a target anchor point cell in the first target cell according to a first preset threshold value and a first reference signal receiving power value in the first measurement report.
Optionally, the non-anchor original cell includes: a second original cell which does not turn on the dual link function in NSA networking mode,
the first determining module 202 includes:
a sub-module for determining candidate cells, configured to determine a candidate cell in at least one cell adjacent to the second original cell, where the candidate cell satisfies the following condition: the candidate cell supports a double-link function, the coverage area of the candidate cell is the same as that of the second original cell, the candidate cell and the second original cell are different in frequency, and a base station corresponding to the candidate cell is the same as a base station corresponding to the second original cell;
A sub-module for determining different-frequency NSA cells, which is used for determining NSA cells different from the second original cell in NSA cells adjacent to the candidate cell;
and the second target cell determining sub-module is used for determining the NSA cell with the different frequency from the second original cell as a second target cell.
Optionally, the measurement report includes a second physical cell identifier of a second neighboring cell, where the second neighboring cell is an NSA cell in the NSA networking mode, and a frequency point of the second neighboring cell accords with the preset frequency point information,
the second determining module 206 includes:
the second comparison sub-module is used for comparing the second physical cell identifier in the measurement report with a neighbor cell table in the base station to obtain a second comparison result;
a target NSA cell determination sub-module, configured to determine a target NSA cell according to the second comparison result and the measurement report;
and the second determining target anchor point cell sub-module is used for determining the candidate cell corresponding to the target NSA cell as the target anchor point cell.
Optionally, the apparatus further comprises:
a writing module, configured to write cell information of the target NSA cell into a candidate cell information list;
And the establishing module is used for controlling the target anchor point cell to establish double links with the target NSA cell according to the cell information of the target NSA cell in the candidate cell list.
Optionally, the apparatus further comprises:
the statistics module is used for counting the switching times information and the switching success rate information of the target terminal switched to the target anchor point cell;
and the output module is used for outputting the switching times information and the switching success rate information.
In summary, the embodiment of the invention can determine the target cell based on at least one cell adjacent to the original cell under the condition that the target terminal in the original cell which is not an anchor point is a terminal supporting the double-link function, initiate special measurement for the target cell to the target terminal, acquire a measurement report returned for the special measurement, and determine the target anchor point cell based on the measurement report, thereby realizing the rapid directional switching of the target terminal to the target anchor point cell and improving the efficiency of establishing double-link between the target terminal and the NSA cell.
The embodiment of the invention also provides a cell directional switching device, referring to fig. 3, including: one or more processors 301, one or more readable storage media 302, and a computer program 3021 stored on the storage media and executable on the processor, which when executed implements the cell directional handover method of the foregoing embodiments.
The embodiment of the invention also provides a readable storage medium, when the computer program in the storage medium is executed by the processor of the cell directional switching device, the cell directional switching device can execute the processes of the cell directional switching method embodiment of the foregoing embodiment, and the same technical effects can be achieved, so that repetition is avoided, and redundant description is omitted here. Wherein the readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory RAM), magnetic disk or optical disk.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.
It will be apparent to those skilled in the art that embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the invention may take the form of a computer program product on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal device, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or terminal device comprising the element.
The foregoing has described in detail a cell directional handover method and apparatus provided by the present invention, and specific examples have been applied herein to illustrate the principles and embodiments of the present invention, where the foregoing examples are provided to assist in understanding the method and core idea of the present invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.
Claims (14)
1. A method of cell-directed handover, applied to a base station, the method comprising:
detecting a target terminal in a non-anchor original cell, wherein the target terminal is a terminal supporting a double-link function;
determining a target cell based on at least one cell adjacent to the original cell;
configuring measurement information of the target cell, wherein the measurement information comprises preset frequency point information aiming at the target cell;
sending a measurement request to the target terminal, and initiating special measurement to the target cell according to the preset frequency point information, wherein the measurement request carries the measurement information;
Acquiring a measurement report returned by the target terminal based on the preset frequency point information;
determining a target anchor point cell according to the measurement report;
controlling the target terminal to switch to the target anchor point cell;
the non-anchor original cell includes: a second original cell with double-link function not opened in NSA networking mode;
the determining a target cell based on at least one cell adjacent to the original cell includes:
determining a candidate cell in at least one cell adjacent to the second original cell, wherein the candidate cell meets the following conditions: the candidate cell supports a double-link function, the coverage area of the candidate cell is the same as that of the second original cell, the candidate cell and the second original cell are different in frequency, and a base station corresponding to the candidate cell is the same as a base station corresponding to the second original cell; determining NSA cells different in frequency from the second original cell in NSA cells adjacent to the candidate cell; and determining the NSA cell with the different frequency from the second original cell as a second target cell.
2. The method of claim 1, wherein the non-anchor original cell comprises: a first original cell in a non-independent networking NSA networking mode, the determining a target cell based on at least one cell adjacent to the original cell includes:
A first target cell is determined in at least one cell adjacent to the first original cell.
3. The method according to claim 2, wherein the measurement report includes a first reference signal received power value and a first physical cell identifier of a first neighboring cell, the first neighboring cell being adjacent to the first original cell, and a frequency point of the first neighboring cell conforming to the preset frequency point information, and wherein the determining a target anchor cell according to the measurement report includes:
comparing the first physical cell identifier in the measurement report with a neighbor cell table in the base station to obtain a first comparison result;
determining a first measurement report corresponding to the first target cell according to the first comparison result;
and determining a target anchor point cell in the first target cell according to a first preset threshold value and a first reference signal receiving power value in the first measurement report.
4. The method of claim 1, wherein the measurement report includes a second physical cell identifier of a second neighboring cell, the second neighboring cell is an NSA cell in the NSA networking mode, and a frequency point of the second neighboring cell conforms to the preset frequency point information, and the determining a target anchor cell according to the measurement report includes:
Comparing the second physical cell identifier in the measurement report with a neighbor cell table in the base station to obtain a second comparison result;
determining a target NSA cell according to the second comparison result and the measurement report;
and determining the candidate cell corresponding to the target NSA cell as a target anchor point cell.
5. The method of claim 4, wherein after the determining the target NSA cell, the method further includes:
writing the cell information of the target NSA cell into a candidate cell information list;
after the target terminal is controlled to be switched to the target anchor cell, the method further comprises:
and controlling the target anchor point cell to establish double links with the target NSA cell according to the cell information of the target NSA cell in the candidate cell list.
6. The method of claim 1, wherein after the controlling the target terminal to switch to the target anchor cell, the method further comprises:
counting switching times information of switching the target terminal to the target anchor point cell and switching success rate information;
and outputting the switching times information and the switching success rate information.
7. A cell-directed handover apparatus for use in a base station, the apparatus comprising:
the detection module is used for detecting a target terminal in a non-anchor original cell, wherein the target terminal is a terminal supporting a double-link function;
a first determining module, configured to determine a target cell based on at least one cell adjacent to the original cell;
the configuration module is used for configuring measurement information of the target cell, wherein the measurement information comprises preset frequency point information aiming at the target cell;
the sending module is used for sending a measurement request to the target terminal, and initiating special measurement to the target cell according to the preset frequency point information, wherein the measurement request carries the measurement information;
the acquisition module is used for acquiring a measurement report returned by the target terminal based on the preset frequency point information;
the second determining module is used for determining a target anchor point cell according to the measurement report;
the switching module is used for controlling the target terminal to switch to the target anchor point cell;
the non-anchor original cell includes: a second original cell with double-link function not opened in NSA networking mode;
the first determining module includes:
A sub-module for determining candidate cells, configured to determine a candidate cell in at least one cell adjacent to the second original cell, where the candidate cell satisfies the following condition: the candidate cell supports a double-link function, the coverage area of the candidate cell is the same as that of the second original cell, the candidate cell and the second original cell are different in frequency, and a base station corresponding to the candidate cell is the same as a base station corresponding to the second original cell;
a sub-module for determining different-frequency NSA cells, which is used for determining NSA cells different from the second original cell in NSA cells adjacent to the candidate cell;
and the second target cell determining sub-module is used for determining the NSA cell with the different frequency from the second original cell as a second target cell.
8. The apparatus of claim 7, wherein the non-anchor original cell comprises: the first original cell in non-NSA networking mode,
the first determining module includes:
and the first target cell determining sub-module is used for determining a first target cell in at least one cell adjacent to the first original cell.
9. The apparatus of claim 8, wherein the measurement report includes a first reference signal received power value and a first physical cell identity of a first neighboring cell, the first neighboring cell being adjacent to the first original cell, and wherein a frequency point of the first neighboring cell conforms to the preset frequency point information,
The second determining module includes:
the first comparison sub-module is used for comparing the first physical cell identifier in the measurement report with a neighbor cell table in the base station to obtain a first comparison result;
a measurement report determining sub-module, configured to determine a first measurement report corresponding to the first target cell according to the first comparison result;
and the first target anchor point cell determining submodule is used for determining a target anchor point cell in the first target cell according to a first preset threshold value and a first reference signal receiving power value in the first measurement report.
10. The apparatus of claim 7 wherein the measurement report includes a second physical cell identifier of a second neighboring cell, the second neighboring cell is an NSA cell in the NSA networking mode, and a frequency point of the second neighboring cell conforms to the preset frequency point information,
the second determining module includes:
the second comparison sub-module is used for comparing the second physical cell identifier in the measurement report with a neighbor cell table in the base station to obtain a second comparison result;
a target NSA cell determination sub-module, configured to determine a target NSA cell according to the second comparison result and the measurement report;
And the second determining target anchor point cell sub-module is used for determining the candidate cell corresponding to the target NSA cell as the target anchor point cell.
11. The apparatus of claim 10, wherein the apparatus further comprises:
a writing module, configured to write cell information of the target NSA cell into a candidate cell information list;
and the establishing module is used for controlling the target anchor point cell to establish double links with the target NSA cell according to the cell information of the target NSA cell in the candidate cell list.
12. The apparatus of claim 7, wherein the apparatus further comprises:
the statistics module is used for counting the switching times information and the switching success rate information of the target terminal switched to the target anchor point cell;
and the output module is used for outputting the switching times information and the switching success rate information.
13. A cell directional handover apparatus, comprising:
one or more processors; and
one or more readable storage media having a computer program stored thereon, which when executed by the one or more processors, causes the apparatus to perform the cell-directed handover method of any of claims 1 to 6.
14. A computer readable storage medium storing a computer program for causing a processor to perform the cell-directed handover method according to any one of claims 1 to 6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010746571.5A CN114071588B (en) | 2020-07-29 | 2020-07-29 | Cell directional switching method and device |
| PCT/CN2021/105562 WO2022022261A1 (en) | 2020-07-29 | 2021-07-09 | Cell direction handover method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010746571.5A CN114071588B (en) | 2020-07-29 | 2020-07-29 | Cell directional switching method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114071588A CN114071588A (en) | 2022-02-18 |
| CN114071588B true CN114071588B (en) | 2023-05-23 |
Family
ID=80037517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010746571.5A Active CN114071588B (en) | 2020-07-29 | 2020-07-29 | Cell directional switching method and device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114071588B (en) |
| WO (1) | WO2022022261A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109862595A (en) * | 2019-03-18 | 2019-06-07 | 中国联合网络通信集团有限公司 | A kind of orientation switching method and system |
| CN110913457A (en) * | 2019-11-29 | 2020-03-24 | 中国移动通信集团内蒙古有限公司 | Anchor point selection method, device, equipment and medium based on NSA mode |
| CN111417110A (en) * | 2019-01-04 | 2020-07-14 | 大唐移动通信设备有限公司 | NSA-based cell configuration method and device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11848718B2 (en) * | 2018-08-07 | 2023-12-19 | Interdigital Patent Holdings, Inc. | Radio resource management in wireless systems |
| CN111417157A (en) * | 2020-03-20 | 2020-07-14 | 珠海市魅族科技有限公司 | Network connection method and device of mobile terminal, electronic equipment and storage medium |
-
2020
- 2020-07-29 CN CN202010746571.5A patent/CN114071588B/en active Active
-
2021
- 2021-07-09 WO PCT/CN2021/105562 patent/WO2022022261A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111417110A (en) * | 2019-01-04 | 2020-07-14 | 大唐移动通信设备有限公司 | NSA-based cell configuration method and device |
| CN109862595A (en) * | 2019-03-18 | 2019-06-07 | 中国联合网络通信集团有限公司 | A kind of orientation switching method and system |
| CN110913457A (en) * | 2019-11-29 | 2020-03-24 | 中国移动通信集团内蒙古有限公司 | Anchor point selection method, device, equipment and medium based on NSA mode |
Non-Patent Citations (1)
| Title |
|---|
| "36331v1510 CR3386r1_(REL-15)_R2-1806432 on NSA corrections-ver2".《3GPP tsg_ran\WG2_RL2》.2018, * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022022261A1 (en) | 2022-02-03 |
| CN114071588A (en) | 2022-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110536342B (en) | Network mode control method, terminal and storage medium | |
| JP6813593B2 (en) | Methods for data transmission, terminals and base stations | |
| EP3266266B1 (en) | Scheduling of resources adapted to another node's scheduling information in the context of vehicular decentralized cooperative communications | |
| CN111757527A (en) | Communication method, communication device and system | |
| CN105357728A (en) | Network type switching method, device and mobile terminal | |
| CN112312487B (en) | Communication method and communication device | |
| US10172106B2 (en) | Communication method and device for reducing data transmission interruption during handovers | |
| US11039452B2 (en) | LTE-U and WIFI 5G channel self-interference addressing method and system | |
| WO2022111454A1 (en) | Interference measurement method and apparatus, terminal and network device | |
| CN103857014A (en) | Service establishment method and device and system for multimode user equipment | |
| CN108347725B (en) | Communication method and apparatus | |
| US20070104176A1 (en) | System and method for pilot signal utilization in an environment using dynamic frequency assignment | |
| CN106255157A (en) | A kind of optimize the method for redirection process between multimode user terminal pattern | |
| CN109474968B (en) | Control method, electronic equipment and network access equipment | |
| CN103945466A (en) | Method and equipment for determining candidate switching cell set | |
| CN110890909A (en) | Beam searching method for 5G NR initial access process | |
| CN114071588B (en) | Cell directional switching method and device | |
| EP3721661A1 (en) | Transceiver point, method, and computer program for reallocating transmission of beams | |
| CN100589649C (en) | Mode mobile terminal and Universal Terrestrial Radio Access Network carry out information interactive method | |
| CN114026911A (en) | Early data transmission for dual connectivity or carrier aggregation | |
| CN105228203A (en) | A kind of cell configuring method and device | |
| CN105554708A (en) | Method for lagged group calling entrance of IDLE-state UE, and apparatus and system thereof | |
| EP3985799A1 (en) | Method and system for controlling working states of antenna panels of terminal, and storage medium | |
| CN116137726A (en) | Data transmission method, remote UE, relay UE and storage medium | |
| WO2021083815A1 (en) | Method and apparatus for switching of data transmission between radio access technologies for early data transmission |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |