CN105992168A - Cell selection method and automatic neighbor cell relation configuration method and equipment - Google Patents
Cell selection method and automatic neighbor cell relation configuration method and equipment Download PDFInfo
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- CN105992168A CN105992168A CN201510099866.7A CN201510099866A CN105992168A CN 105992168 A CN105992168 A CN 105992168A CN 201510099866 A CN201510099866 A CN 201510099866A CN 105992168 A CN105992168 A CN 105992168A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W4/10—Push-to-Talk [PTT] or Push-On-Call services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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Abstract
本发明实施例公开了一种小区选择的方法，集群专用网络中的用户设备存储有由集群专用网络中的基站下发的包括集群专用网络中所有小区PCI的PCI列表，用户设备进行小区搜索，获得第一最强小区的PCI，当在PCI列表中查询到第一最强小区的PCI时，将第一最强小区判决为可驻留小区，并继续读取第一最强小区的系统消息，完成小区选择；反之，将第一最强小区判决为不可驻留小区，终止小区选择。本发明实施例同时还公开了一种自动邻区关系ANR配置方法，用户设备进行小区搜索，获得第三最强小区，当确定第三最强小区为自身服务小区的相邻小区时，直接读取第三最强小区的系统消息，并将上报给服务基站，以供服务基站进行自动邻区关系配置。
The embodiment of the present invention discloses a method for selecting a cell. The user equipment in the cluster private network stores a PCI list issued by the base station in the cluster private network including the PCIs of all cells in the cluster private network, and the user equipment performs cell search. Obtain the PCI of the first strongest cell, and when the PCI of the first strongest cell is found in the PCI list, judge the first strongest cell as a resident cell, and continue to read the system information of the first strongest cell , to complete the cell selection; otherwise, the first strongest cell is judged as a non-resident cell, and the cell selection is terminated. The embodiment of the present invention also discloses an automatic neighboring cell relation ANR configuration method. The user equipment performs a cell search to obtain the third strongest cell. The system information of the third strongest cell is obtained, and reported to the serving base station, so that the serving base station can perform automatic neighbor cell relationship configuration.
Description
Technical Field
The present invention relates to the field of wireless communications, and in particular, to a cell selection method, an automatic neighbor relation configuration method, and an apparatus.
Background
Currently, a cluster private network is developed to meet the requirements of industry user command and scheduling, and is a private wireless communication system for specific industry applications. The special trunking network is a special communication network independent of the public mobile communication network, can provide the bidirectional communication function of the mobile phone, can also provide group (group) call and full call in the special network, even establish the priority level of the communication, can carry out communication which is not provided by general mobile phones, such as priority level call, emergency call, and the like, and can also provide special functions, such as dynamic recombination, virtual private network in the system, and the like.
For a trunking private network, the trunking private network is not interoperable with a general wireless communication network, or may not interoperable with other trunking private networks, that is, if the ue selects a cell in a different trunking private network to camp on, a situation that normal communication cannot be performed may occur, and efficiency of activities such as subsequent camping, handover, Automatic Neighbor Relation (ANR) configuration, and the like of the ue may also be affected.
Disclosure of Invention
In view of this, embodiments of the present invention are expected to provide a cell selection method, an automatic neighbor relation configuration method, and an automatic neighbor relation configuration device, so as to ensure reliability of communication of a user equipment in a cluster private network, and improve efficiency of activities such as subsequent camping, handover, automatic neighbor relation ARN configuration, and the like.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a method for cell selection, which is applied to a user equipment in a cluster private network, and includes: after cell search is carried out, the physical cell identity PCI of the first strongest cell is obtained; inquiring the PCI of the first strongest cell in a PCI list issued by a base station, wherein the PCI list comprises the PCIs of all cells in the cluster private network; when the PCI of the first strongest cell is inquired in the PCI list, the first strongest cell is judged as a cell which can be resided, and the system message of the first strongest cell is read to complete cell selection; and when the PCI of the first strongest cell is not inquired in the PCI list, judging the first strongest cell as a non-resident cell, and terminating cell selection.
Further, after the determining the first strongest cell as the non-campeable cell, the method further includes: and determining the frequency point corresponding to the first strongest cell as an unavailable frequency point, so that the unavailable frequency point is not searched again when cell search is performed again.
Further, after the frequency point corresponding to the first strongest cell is determined as an unavailable frequency point, the method further includes: and when the first strongest cell is added into the cluster private network, changing the frequency point corresponding to the first strongest cell from an unavailable frequency point to an available frequency point.
Further, the method further comprises: when the user equipment selects an initial cell, scanning all available frequency points of the cluster private network to determine a second strongest cell; and obtaining the system message of the second strongest cell, wherein the system message of the second strongest cell carries the PCI list.
In a second aspect, an embodiment of the present invention provides a cell selection method, which is applied to a base station in a cluster private network, where the method includes: when the cluster private network is established, expanded or reduced, reporting Physical Cell Identifiers (PCI) of all cells managed by the cluster private network to an Operation Administration and Maintenance (OAM) entity; receiving a PCI list from the OAM entity, wherein the PCI list comprises the PCIs of all cells in the cluster private network; and sending the PCI list to the user equipment, wherein the PCI list is used for the user equipment to select the cell.
Further, the sending the PCI list to the user equipment includes: and carrying the PCI list in a system message and sending the system message to the user equipment.
In a third aspect, an embodiment of the present invention provides an automatic neighbor relation ANR configuration method, which is applied to a user equipment, and the method includes: performing cell search according to the measurement configuration issued by the base station to obtain a physical cell identifier PCI of a third strongest cell; according to the PCI of the third strongest cell, directly reading the system message of the third strongest cell after determining that the third strongest cell is not the adjacent cell of the service cell; and reporting the system message to the base station in a measurement report, wherein the system message is used for the base station to configure ANR.
Further, the measurement configuration carries a neighbor cell list of the serving cell; correspondingly, the determining that the third strongest cell is not a neighboring cell of the serving cell according to the PCI of the third strongest cell includes: inquiring the PCI of the third strongest cell in the neighbor cell list; and when the PCI of the third strongest cell is not inquired, confirming that the third strongest cell is not the adjacent cell of the service cell.
In a fourth aspect, an embodiment of the present invention provides an automatic neighbor relation ANR configuration method, which is applied to a base station, and the method includes: receiving a measurement report from user equipment, wherein the measurement report carries a system message of a third strongest cell measured by the user equipment; and when the third strongest cell is determined not to be the neighbor cell of the serving cell based on the neighbor cell list and meets the base station neighbor cell judgment strategy, adding the third strongest cell to the neighbor cell list.
In a fifth aspect, an embodiment of the present invention provides a user equipment, including: the device comprises a first measurement module, a query module and a judgment module; the first measurement module is configured to obtain a physical cell identity PCI of a first strongest cell after cell search is performed; the query module is configured to query the PCI of the first strongest cell in a PCI list issued by a base station, where the PCI list includes PCIs of all cells in a cluster private network where the base station is located; the judging module is configured to judge the first strongest cell as a cell where the cell can reside when the PCI of the first strongest cell is found in the PCI list, and read a system message of the first strongest cell to complete cell selection; and the ue is further configured to determine the first strongest cell as a non-campeable cell and terminate cell selection when the PCI of the first strongest cell is not queried in the PCI list.
Further, the first measurement module is further configured to determine, after the determining module determines the first strongest cell as the cell where the cell cannot reside, the frequency point corresponding to the first strongest cell as an unavailable frequency point, so that the unavailable frequency point is not searched again when cell search is performed again.
Further, the first measurement module is configured to, after determining the frequency point corresponding to the first strongest cell as an unavailable frequency point, change the frequency point corresponding to the first strongest cell from the unavailable frequency point to an available frequency point when the first strongest cell is added to the cluster private network.
Further, the first measurement module is further configured to scan all available frequency points of the cluster private network when the user equipment to which the first measurement module belongs performs initial cell selection, and obtain the PCI of a second strongest cell; the user equipment further comprises: a reading module, configured to read a system message of the second strongest cell based on the PCI of the second strongest cell, where the system message of the second strongest cell carries the PCI list.
In a sixth aspect, an embodiment of the present invention provides a base station, where the base station is located in a trunking private network, and the base station includes: the device comprises a first sending module and a first receiving module; the first sending module is configured to report physical cell identifiers PCI of all cells governed by the first sending module to an operation, administration and maintenance OAM entity when the cluster private network is created, expanded, or reduced; the ue is further configured to send the PCI list to the ue, where the PCI list is used for cell selection by the ue; the first receiving module is configured to receive a PCI list from the OAM entity, where the PCI list includes PCIs of all cells in the cluster private network.
Further, the first sending module is specifically configured to carry the PCI list in a system message and send the system message to the user equipment.
In a seventh aspect, an embodiment of the present invention provides a user equipment, where the user equipment includes: the device comprises a second measuring module, a determining module and a second sending module; the second measurement module is configured to perform cell search according to measurement configuration issued by the base station, and obtain a physical cell identity PCI of a third strongest cell; the determining module is configured to directly read a system message of the third strongest cell after determining, according to the PCI of the third strongest cell, that the third strongest cell is not an adjacent cell to the serving cell; the second sending module is configured to carry the system message in a measurement report and report the measurement report to the base station, where the system message is used for the base station to configure Automatic Neighbor Relation (ANR).
Further, the measurement configuration carries a neighbor cell list of the serving cell; correspondingly, the determining module is configured to query the PCI of the third strongest cell in the neighbor cell list; and when the PCI of the third strongest cell is not inquired, confirming that the third strongest cell is not the adjacent cell of the service cell.
In an eighth aspect, an embodiment of the present invention provides a base station, where the base station includes: a second receiving module and an ANR configuration module; the second receiving module is configured to receive a measurement report from a user equipment, where the measurement report carries a system message of a third strongest cell measured by the user equipment; the ANR configuration module is configured to add the third strongest cell to the neighbor cell list when it is determined that the third strongest cell is not a neighbor cell of the serving cell based on the neighbor cell list and the third strongest cell satisfies a base station neighbor cell decision policy.
In the method for selecting a cell provided in the embodiment of the present invention, a PCI list sent by a base station is stored in a user equipment, where the PCI list includes Physical Cell Identifiers (PCIs) of all cells in a cluster private network, so that the user equipment obtains the PCI of a first strongest cell after performing cell search, then queries the PCI of the first strongest cell in the PCI list, that is, determines whether the cell is the cell of the cluster private network where the base station is located, and if so, determines the first strongest cell as a cell where the user equipment can reside when querying the PCI of the first strongest cell in the PCI list, and continues to read system information of the first strongest cell to perform residence determination, thereby completing cell selection; if not, namely when the PCI of the first strongest cell is not inquired in the PCI list, the first strongest cell is judged as the cell which can not be resided, the cell selection is directly terminated without further residence judgment, thus the problem that the user equipment can not normally communicate because the user equipment selects the non-intercommunicating cell to reside is avoided, the communication reliability of the user equipment in the cluster private network is ensured, the efficiency of subsequent activities such as residence, switching, automatic neighbor relation (ARN) configuration and the like is improved, and the meaningless electric energy consumption caused by reading the system message of the non-intercommunicating cell by the user equipment is avoided.
Drawings
Fig. 1 is a schematic system architecture diagram of a cluster-dedicated communication system in an embodiment of the present invention;
fig. 2 is a flowchart illustrating a method for cell selection in a cluster private communication system according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of a method for cell selection at a ue side according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a method for cell selection at a base station side according to an embodiment of the present invention;
fig. 5 is a flowchart illustrating a method for performing cell handover in a cluster private communication system according to an embodiment of the present invention;
FIG. 6 is a system architecture diagram of a wireless communication system in an embodiment of the present invention;
fig. 7 is a flowchart illustrating an ANR configuration method performed by a wireless communication system according to an embodiment of the present invention;
fig. 8 is a flowchart illustrating an ANR configuration method performed by a ue according to an embodiment of the present invention;
fig. 9 is a flowchart illustrating an ANR configuration method performed by a base station in an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a user equipment in an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a base station in an embodiment of the present invention;
fig. 12 is a schematic structural diagram of another ue in an embodiment of the present invention;
fig. 13 is a schematic structural diagram of another base station in the embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The first embodiment is as follows:
an embodiment of the present invention provides a cluster private communication system, and fig. 1 is a schematic diagram of a system architecture of the cluster private communication system in the embodiment of the present invention, and referring to fig. 1, the communication system includes: user equipment 11 and base station 12. Wherein the base station 12 governs a plurality of cells in which the user equipment 11 can camp.
In the embodiment of the present invention, the cluster private network may be a wireless communication network having an Isolated evolved universal terrestrial network Operation (IOPS) function based on Public Safety, and the base station 12 in the network can still provide a certain level of communication service for the cluster user when a loop is interrupted or fails to normally transmit signaling and data; the user equipment 11 may be a smart phone, a tablet computer, a multimedia player, etc.; the base station 12 may be a NeNB, an eNB, etc., and the present invention is not particularly limited.
With reference to the embodiment of the present invention, the ue 11 is configured to obtain the PCI of the first strongest cell after performing cell search; querying the PCI of the first strongest cell in a PCI list issued by the base station 12, wherein the PCI list includes PCIs of all cells in the cluster private network; when the PCI of the first strongest cell is inquired in the PCI list, the first strongest cell is judged as a cell which can be resided, and the system information of the first strongest cell is continuously read to complete cell selection; when the PCI of the first strongest cell is not inquired in the PCI list, the first strongest cell is judged as a non-resident cell, and cell selection is terminated;
a base station 12, configured to report PCIs of all cells governed by the base station to an Operation Administration and Maintenance (OAM) entity when a cluster private network is created, expanded, or reduced; receiving a PCI list from an OAM entity, wherein the PCI list comprises the PCIs of all cells in the cluster private network; when the user equipment 11 first enters the cluster private network, a PCI list is sent to the user equipment 11, where the PCI list is used for cell selection by the user equipment 11.
The method for cell selection provided by the embodiment of the invention is described below with reference to the above system.
Fig. 2 is a flowchart illustrating a method for cell selection in a cluster private communication system according to an embodiment of the present invention, referring to fig. 2, the method includes:
s201: when the cluster private network is established, expanded or reduced, the base station reports the PCIs of all cells managed by the base station to the OAM entity;
specifically, one cluster private network may include one or more base stations, where the base stations report PCIs of all cells managed by the base stations to an OAM entity when the cluster private network is created, expanded, or reduced, then the OAM entity summarizes the PCIs of the cells to generate a PCI list, where the PCI list includes the PCIs of all the cells in the cluster private network, and then the OAM entity issues the list to all the base stations in the cluster private network.
S202: a base station receives a PCI list from an OAM entity, wherein the PCI list comprises the PCIs of all cells in a cluster private network;
it should be noted that several cluster-specific networks may exist simultaneously, each cluster-specific network having a PCI list, and the PCI lists of different cluster-specific networks being different.
S203: the base station sends a PCI list to the user equipment;
in the specific implementation process, the issuing of the PCI list has the following two cases without limitation.
First, the base station transmits the PCI list to the user equipment through a broadcast channel.
For example, when the user equipment performs initial cell selection, the user equipment performs all available frequency point scanning on the cluster private network, determines the second strongest cell, obtains the PCI of the second strongest cell, and then reads the PCI list on the broadcast channel of the second strongest cell based on the PCI of the second strongest cell, so that the user equipment obtains the PCI list issued by the base station. Preferably, the PCI list is carried in a System message Block (SIB) 3.
For another example, after the OAM entity updates the PCI list, the updated PCI list is issued to all base stations in the cluster private network, at this time, the base stations broadcast the updated PCI list, and then the user equipment obtains the updated PCI list by reading the broadcast channel of the serving cell or the broadcast channel of the strongest cell searched by the cell.
Second, the base station sends the PCI list to the user equipment through dedicated signaling. For example, the user equipment may request the PCI list from the base station periodically or on demand, and at this time, the base station transmits the PCI list to the user equipment through dedicated signaling.
For another example, after Radio Resource Control (RRC) is established, the serving base station sends the PCI list to the ue through a dedicated signaling.
Of course, in practical applications, there are other manners of issuing the PCI list, and the present invention is not particularly limited.
It should be noted that the system message at least includes: evolved universal Mobile telecommunications system terrestrial radio access Network Cell Global Identifier (ECGI), Tracking Area Code (TAC), and Public Land Mobile Network (PLMN) Identifier.
S204: after cell search is carried out by user equipment, the PCI of a first strongest cell is obtained;
s205: the user equipment inquires the PCI of the first strongest cell in the PCI list;
s206 a: when the PCI of the first strongest cell is inquired in the PCI list, the user equipment judges the first strongest cell as a cell which can be resided, and continuously reads the system message of the first strongest cell to complete cell selection;
specifically, the user equipment determines that the first strongest cell is a cell in the current trunking private network by inquiring the PCI list, determines the first strongest cell as a cell where the user equipment can reside, reads the system messages in the broadcast channel of the first strongest cell, and determines whether the first strongest cell is suitable for residing according to the system messages and an S criterion, if so, resides in the first strongest cell, and completes cell selection; and otherwise, selecting the second-strength cell for judgment, and repeating the steps until the position of the cell where the cell is properly resided is selected.
S206 b: and when the PCI of the first strongest cell is not inquired in the PCI list, the user equipment judges the first strongest cell as a non-residable cell and terminates cell selection.
Specifically, when the user equipment determines that the first strongest cell is not the cell in the current trunking private network by querying the PCI list, the user equipment determines the first strongest cell as the cell which can not be resided, at this time, the cell selection process is terminated, the system message of the first strongest cell is not continuously read, but the secondary strongest cell is selected for determination, and so on until the cell position which is suitable for residing is selected.
Furthermore, the user equipment can also determine the non-resident cells, for example, the frequency point corresponding to the first strongest cell is determined to be a non-available frequency point, and add the non-resident cells into the blacklist, so that the non-available frequency points, namely, the frequency points in the blacklist, can not be searched again when the cell search is performed next time, and the power consumption of the equipment caused by meaningless search is reduced. And if the cell corresponding to the frequency point in the blacklist is added into the cluster private network, the user equipment deletes the frequency point from the blacklist.
It should be noted that, the first strongest cell and the second strongest cell may be the same cell or different cells, and the present invention is not limited in particular by the practical application.
The following station describes the above-described cell selection method on the user equipment side.
Fig. 3 is a schematic flow chart of a method for cell selection at a user equipment side in an embodiment of the present invention, and referring to fig. 3, the method includes:
s301: after cell search is carried out, the PCI of a first strongest cell is obtained;
s302: inquiring the PCI of the first strongest cell in a PCI list issued by a base station, wherein the PCI list comprises the PCIs of all cells in the cluster private network;
s303 a: when the PCI of the first strongest cell is inquired in the PCI list, the first strongest cell is judged as a cell which can be resided, and the system information of the first strongest cell is continuously read to complete cell selection;
s303 b: and when the PCI of the first strongest cell is not inquired in the PCI list, judging the first strongest cell as a non-resident cell and terminating cell selection.
Further, after S303b, the method further includes: and determining the frequency point corresponding to the first strongest cell as an unavailable frequency point, so that the unavailable frequency point is not searched again when cell search is carried out again.
Further, after the step of determining the frequency point corresponding to the first strongest cell as an unavailable frequency point, the method further includes: and when the first strongest cell is added into the cluster private network, changing the frequency point corresponding to the first strongest cell from the unavailable frequency point to the available frequency point.
Further, the method further comprises: when the user equipment selects the initial cell, scanning all available frequency points of the cluster private network to determine a second strongest cell; and obtaining the system message of the second strongest cell, wherein the system message of the second strongest cell carries the PCI list.
The following station describes the method of cell selection on the base station side.
Fig. 4 is a flowchart illustrating a method for cell selection at a base station side in an embodiment of the present invention, referring to fig. 4, where the method includes:
s401: reporting PCI of all cells managed by the network to an OAM entity when the cluster private network is established, expanded or reduced;
s402: receiving a PCI list from an OAM entity, wherein the PCI list comprises the PCIs of all cells in the cluster private network;
s403: and sending a PCI list to the user equipment, wherein the PCI list is used for the user equipment to select the cell.
Further, the step of sending the PCI list to the user equipment in S403 includes: and carrying the PCI list in a system message and sending the system message to the user equipment.
The method for cell handover provided by the embodiment of the present invention is described below with reference to the above system.
Fig. 5 is a flowchart illustrating a method for performing cell handover in a cluster private communication system according to an embodiment of the present invention, referring to fig. 5, the method includes:
s501: the source base station issues measurement configuration to the user equipment, wherein the measurement configuration carries a PCI list comprising all cell PCIs in the cluster private network where the source base station is located;
s502: the user equipment carries out cell measurement according to the measurement configuration to obtain the PCI of the strongest cell;
s503: the user equipment inquires the PCI of the strongest cell in the PCI list;
s504, 504 a: when the PCI of the strongest cell is inquired in the PCI list, the user equipment continuously reads the system message of the strongest cell;
s505 a: the user equipment carries the system message of the strongest cell in a measurement report and reports the system message to the source base station;
s506 a: and the source base station initiates cell switching according to the measurement report and switches the user equipment to the strongest cell.
S504, 504 b: when the PCI of the strongest cell is not inquired in the PCI list, the user equipment terminates reading the system message of the strongest cell and terminates cell selection.
Furthermore, the user equipment can also add the frequency points corresponding to the strongest cell which can not reside in the blacklist, so that the frequency points in the blacklist can not be searched when the cell is searched next time, and the equipment power consumption caused by meaningless search is reduced.
In another embodiment, when the base station performs ANR configuration, the ue may perform S501 to S505a, report the strongest cell located in the trunking dedicated network to the base station, and after determining that the strongest cell is not in the neighbor list, the base station adds the strongest cell to the neighbor list to complete ANR configuration.
As can be seen from the above, in the method for cell selection provided in the embodiment of the present invention, the PCI list sent by the base station is stored in the user equipment, and includes PCIs of all cells in the cluster private network, then, the user equipment obtains the PCI of the first strongest cell after performing cell search, and then, queries the PCI of the first strongest cell in the PCI list, that is, determines whether the cell is the cell of the cluster private network where the base station is located, and if so, determines the first strongest cell as a cell that can be camped when querying the PCI of the first strongest cell in the PCI list, and continues to read the system message of the first strongest cell, and performs a camping determination, thereby completing cell selection; if not, namely when the PCI of the first strongest cell is not inquired in the PCI list, the first strongest cell is judged as the cell which can not be resided, the cell selection is directly terminated without further residence judgment, thus the problem that the user equipment can not normally communicate because the user equipment selects the non-intercommunicating cell to reside is avoided, the communication reliability of the user equipment in the cluster private network is ensured, the efficiency of subsequent activities such as residence, switching, automatic neighbor relation (ARN) configuration and the like is improved, and the meaningless electric energy consumption caused by reading the system message of the non-intercommunicating cell by the user equipment is avoided.
Example two:
at present, a detailed specification is made on an ANR implementation manner in a 3GPP protocol, at the beginning of network establishment, no neighbor relation exists in a neighbor relation list, all handover target cells reported by a user equipment are missed neighbors, a base station guides the user equipment to report a neighbor PCI, and schedules a proper idle time to allow the UE to read an ECGI of a new cell and add the ECGI to the neighbor list.
The following is a specific example to analyze the problem of the ANR configuration in the prior art.
For example, the base station serves cell a, and the base station notifies the ue to perform neighbor cell measurement.
Step one, user equipment sends a measurement report of a cell B to a base station, wherein the measurement report contains a PCI of the cell B but does not contain an ECGI;
step two, the base station informs the user equipment to read the ECGI, the TAC and the PLMN ID of the cell B by using the newly found PCI;
at this time, the base station may need to schedule an appropriate idle time to allow the user equipment to read the information, which may result in a long time for the user equipment to read the system messages.
Step three, after the user equipment obtains the ECGI, the TAC and the PLMN ID of the cell B, the user equipment reports the information to a serving cell base station;
and step four, the service cell base station judges whether to add the cell B into the adjacent cell relation based on the base station adjacent cell strategy.
As can be seen from the above description, the ue needs to wait for the idle time scheduled by the base station when the ue wants to read information such as the ECGI of the cell B, and if the cell B is a missed cell during cell handover, the ue needs to read information such as the ECGI of the cell B when the ue wants to handover to the cell B, that is, the ue needs to wait for scheduling of the base station, which may cause a very long time to fail to perform handover in time, and thus a call drop is easy.
Therefore, in order to solve the above problem, an embodiment of the present invention provides an ANR configuration method, and the general idea is as follows:
the user equipment searches for a third strongest cell by searching cells, and when the third strongest cell is determined to be a cell adjacent to a serving cell of the user equipment, the user equipment directly reads a system message of the third strongest cell, carries the system message in a measurement report and reports the system message to the serving base station so as to enable the serving base station to perform ANR configuration.
Therefore, when the user equipment determines that the third strongest cell is not a neighbor cell, the user equipment directly reads the system message of the third strongest cell without reporting the PCI of the third strongest cell to the base station first and waiting for the scheduling indication of the base station to read the system message of the third strongest cell, so that the problem that the system message cannot be obtained in time due to overlong time for waiting for the indication of the base station is avoided, the time for reading the system message is greatly shortened, and further, the quick switching can be realized in the cell switching process, and the occurrence of call drop is reduced.
The above-described scheme is explained in detail below.
The embodiment of the invention provides a wireless communication system, which can be positioned in a public mobile communication network, such as an LTE network, a UTMS network and the like; or may be located in a cluster private network, such as an IOPS network, and the present invention is not limited in particular.
Fig. 6 is a schematic system architecture diagram of a wireless communication system according to an embodiment of the present invention, and referring to fig. 6, the system includes: user equipment 61 and base station 62.
With reference to the embodiment of the present invention, the ue 61 is configured to perform cell search according to the measurement configuration issued by the base station 62, and obtain the PCI of the third strongest cell; according to the PCI of the third strongest cell, directly reading the system message of the third strongest cell after determining that the third strongest cell is not the adjacent cell of the service cell; carrying a system message in the measurement report and reporting the measurement report to the base station 62, wherein the system message is used for the base station 62 to configure ANR;
a base station 62, configured to receive a measurement report from the user equipment 61, where the measurement report carries a system message of a third strongest cell measured by the user equipment 61; and when the third strongest cell is determined not to be the adjacent cell of the service cell based on the adjacent cell list and meets the judgment strategy of the adjacent cell of the base station, adding the third strongest cell into the adjacent cell list.
The following describes an ANR configuration method according to an embodiment of the present invention with reference to the above wireless communication system.
Fig. 7 is a flowchart illustrating an ANR configuration method performed by a wireless communication system according to an embodiment of the present invention, referring to fig. 7, the method includes:
s701: the user equipment searches the cell according to the measurement configuration issued by the base station to obtain the PCI of the third strongest cell;
specifically, the base station issues measurement configuration to the user equipment, the measurement configuration carries a neighbor cell list of a serving cell of the user equipment, and after receiving the measurement configuration, the user equipment starts cell measurement to obtain the PCI of the third strongest cell.
S702: after determining that the third strongest cell is not an adjacent cell of the serving cell according to the PCI of the third strongest cell, the user equipment directly reads the system message of the third strongest cell;
specifically, the user equipment queries the PCI of the third strongest cell in the neighbor cell list, that is, determines whether the third strongest cell is a neighbor cell of the serving cell, and reports the PCI of the third strongest cell to the base station if the third strongest cell is a neighbor cell of the serving cell; if not, the user equipment directly reads the system message of the third strongest cell without reporting the PCI of the third strongest cell to the base station first and waiting for the scheduling indication of the base station to read the system message of the third strongest cell, thereby avoiding the problem that the system message cannot be obtained in time due to overlong time for waiting for the indication of the base station.
S703: the user equipment carries the system message in a measurement report and reports the measurement report to the base station;
s704: a base station receives a measurement report from user equipment;
s705: and when the base station determines that the third strongest cell is not the neighbor cell of the serving cell based on the neighbor cell list and the third strongest cell meets the base station neighbor cell judgment strategy, the base station adds the third strongest cell to the neighbor cell list.
Specifically, since the neighbor list is managed by the base station, and the neighbor list information retained by the ue may not be the latest, which may result in a situation different from the current neighbor list of the base station, in order to improve the accuracy and efficiency of ANR configuration, after receiving the measurement report, the base station still needs to confirm again whether the third strongest cell is a neighbor cell of the serving cell of the ue, that is, whether the PCI of the third strongest cell is in the neighbor list, and if so, performs subsequent processes such as handover decision; if not, judging whether to add the third strongest cell into the neighbor cell list according to the base station neighbor cell judgment strategy, and only when the third strongest cell meets the base station judgment strategy, adding the third strongest cell into the neighbor cell list by the base station, and updating the neighbor cell list for subsequent cell switching.
It should be noted that the base station neighboring cell decision strategy described herein is the prior art, for example, the third strongest cell is a cell allowed to join, or the third strongest cell is suitable for the ue to camp on, and the like, and the present invention is not limited in particular.
The following describes the ANR configuration method described above on the user equipment side.
Fig. 8 is a flowchart illustrating a method for configuring an ANR at a user equipment side in an embodiment of the present invention, and referring to fig. 8, the method includes:
s801: performing cell search according to the measurement configuration issued by the base station to obtain the PCI of the third strongest cell;
s802: according to the PCI of the third strongest cell, directly reading the system message of the third strongest cell after determining that the third strongest cell is not the adjacent cell of the service cell;
further, the measurement configuration carries a neighbor cell list of a serving cell;
accordingly, the step of determining that the third strongest cell is not the neighboring cell of the serving cell according to the PCI of the third strongest cell in S802 includes: inquiring the PCI of the third strongest cell in the neighbor cell list; and when the PCI of the third strongest cell is not inquired, confirming that the third strongest cell is not a neighboring cell of the serving cell.
S803: and carrying a system message in the measurement report and reporting the measurement report to the base station, wherein the system message is used for the base station to configure the ANR.
The following describes the above-described ANR configuration method on the base station side.
Fig. 9 is a flowchart illustrating a method for configuring an ANR at a base station side in an embodiment of the present invention, referring to fig. 9, where the method includes:
s901: receiving a measurement report from the user equipment, wherein the measurement report carries a system message of a third strongest cell measured by the user equipment;
s902: and when the third strongest cell is determined not to be the neighbor cell of the serving cell based on the neighbor cell list and meets the base station neighbor cell judgment strategy, adding the third strongest cell to the neighbor cell list.
As can be seen from the above, in the method for configuring ANR provided in the embodiment of the present invention, when the ue searches for the third strongest cell, it is determined whether the third strongest cell is an adjacent cell to the serving cell, and if not, the system messages such as ECGI and TAC of the cell are directly read without being fed back to the cell of the base station, and the base station waits for the scheduling indication to be read, so that the time for reading the system messages is greatly shortened.
Based on the same inventive concept, embodiments of the present invention provide a user equipment, which is consistent with the user equipment in one or more embodiments described above.
Fig. 10 is a schematic structural diagram of a user equipment in an embodiment of the present invention, and referring to fig. 10, the user equipment includes: a first measurement module 101, a query module 102 and a decision module 103; the first measurement module 101 is configured to obtain a PCI of a first strongest cell after cell search is performed; the query module 102 is configured to query the PCI of the first strongest cell in a PCI list issued by the base station, where the PCI list includes PCIs of all cells in a cluster private network where the base station is located; a determining module 103, configured to determine, when the PCI of the first strongest cell is found in the PCI list, the first strongest cell as a cell where the first strongest cell can reside, and continue to read a system message of the first strongest cell, thereby completing cell selection; and when the PCI of the first strongest cell is not inquired in the PCI list, the first strongest cell is judged as the non-residable cell, and the cell selection is terminated.
Further, the first measurement module 101 is further configured to determine, after the determining module 103 determines the first strongest cell as the cell where the cell cannot reside, the frequency point corresponding to the first strongest cell as an unavailable frequency point, so that the unavailable frequency point is not searched again when the cell search is performed again.
Further, the first measurement module 101 is further configured to, after determining the frequency point corresponding to the first strongest cell as an unavailable frequency point, change the frequency point corresponding to the first strongest cell from the unavailable frequency point to an available frequency point when the first strongest cell is added to the cluster private network.
Further, the first measurement module 101 is further configured to, when the user equipment to which the first measurement module belongs performs initial cell selection, perform scanning on all available frequency points of the cluster private network to obtain the PCI of the second strongest cell;
the user equipment further comprises: and the reading module is further configured to read the system message of the second strongest cell based on the PCI of the second strongest cell, where the system message of the second strongest cell carries the PCI list.
Based on the same inventive concept, embodiments of the present invention provide a base station, which is located in a cluster private network and is consistent with the base station in one or more embodiments described above.
Fig. 11 is a schematic structural diagram of a base station in an embodiment of the present invention, and referring to fig. 11, the base station includes: a first sending module 111 and a first receiving module 112; the first sending module 111 is configured to report PCIs of all cells owned by the first sending module to an OAM entity when a cluster private network is created, expanded, or reduced; the PCI list is also used for sending a PCI list to the user equipment, wherein the PCI list is used for the user equipment to select a cell; a first receiving module 112, configured to receive a PCI list from the OAM entity, where the PCI list includes PCIs of all cells in the cluster private network.
Further, the first sending module 111 is specifically configured to carry the PCI list in a system message and send the system message to the user equipment.
Based on the same inventive concept, the present invention provides another ue, which is the same as the ue in one or more of the above embodiments.
Fig. 12 is a schematic structural diagram of another ue in an embodiment of the present invention, and referring to fig. 12, the ue includes: a second measurement module 121, a determination module 122 and a second sending module 123; the second measurement module 121 is configured to perform cell search according to measurement configuration issued by the base station, and obtain a PCI of a third strongest cell; a determining module 122, configured to directly read a system message of the third strongest cell after determining, according to the PCI of the third strongest cell, that the third strongest cell is not an adjacent cell to the serving cell; a second sending module 123, configured to carry a system message in the measurement report and report the measurement report to the base station, where the system message is used for the base station to configure ANR.
Further, the measurement configuration carries a neighbor cell list of the serving cell; correspondingly, the determining module 122 is configured to query the PCI of the third strongest cell in the neighbor cell list; and when the PCI of the third strongest cell is not inquired, confirming that the third strongest cell is not a neighboring cell of the serving cell.
Based on the same inventive concept, the present invention provides another base station, which is the same as the base station in one or more of the above embodiments.
Fig. 13 is a schematic structural diagram of another base station in the embodiment of the present invention, and referring to fig. 13, the base station includes: a second receiving module 131 and an ANR configuration module 132; the second receiving module 131 is configured to receive a measurement report from the user equipment, where the measurement report carries a system message of a third strongest cell measured by the user equipment; an ANR configuring module 132, configured to add the third strongest cell to the neighbor cell list when it is determined that the third strongest cell is not a neighbor cell of the serving cell based on the neighbor cell list and the third strongest cell satisfies a base station neighbor cell decision policy.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams 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 apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, 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.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (18)
1. A method for cell selection applied to a user equipment in a cluster private network, comprising:
after cell search is carried out, the physical cell identity PCI of the first strongest cell is obtained;
inquiring the PCI of the first strongest cell in a PCI list issued by a base station, wherein the PCI list comprises the PCIs of all cells in the cluster private network;
when the PCI of the first strongest cell is inquired in the PCI list, the first strongest cell is judged as a cell which can be resided, and the system message of the first strongest cell is read to complete cell selection;
and when the PCI of the first strongest cell is not inquired in the PCI list, judging the first strongest cell as a non-resident cell, and terminating cell selection.
2. The method of claim 1, wherein after the determining the first strongest cell as the non-campeable cell, the method further comprises:
and determining the frequency point corresponding to the first strongest cell as an unavailable frequency point, so that the unavailable frequency point is not searched again when cell search is performed again.
3. The method according to claim 2, wherein after the frequency point corresponding to the first strongest cell is determined as an unavailable frequency point, the method further comprises:
and when the first strongest cell is added into the cluster private network, changing the frequency point corresponding to the first strongest cell from an unavailable frequency point to an available frequency point.
4. The method of claim 1, further comprising:
when the user equipment selects an initial cell, scanning all available frequency points of the cluster private network to determine a second strongest cell;
and obtaining the system message of the second strongest cell, wherein the system message of the second strongest cell carries the PCI list.
5. A method of cell selection for a base station in a trunked private network, the method comprising:
when the cluster private network is established, expanded or reduced, reporting Physical Cell Identifiers (PCI) of all cells managed by the cluster private network to an Operation Administration and Maintenance (OAM) entity;
receiving a PCI list from the OAM entity, wherein the PCI list comprises the PCIs of all cells in the cluster private network;
and sending the PCI list to the user equipment, wherein the PCI list is used for the user equipment to select the cell.
6. The method of claim 5, wherein sending the PCI list to the user equipment comprises:
and carrying the PCI list in a system message and sending the system message to the user equipment.
7. An Automatic Neighbor Relation (ANR) configuration method applied to User Equipment (UE), the method comprising:
performing cell search according to the measurement configuration issued by the base station to obtain a physical cell identifier PCI of a third strongest cell;
according to the PCI of the third strongest cell, directly reading the system message of the third strongest cell after determining that the third strongest cell is not the adjacent cell of the service cell;
and reporting the system message to the base station in a measurement report, wherein the system message is used for the base station to configure ANR.
8. The method of claim 7, wherein the measurement configuration carries a neighbor cell list of the serving cell;
correspondingly, the determining that the third strongest cell is not a neighboring cell of the serving cell according to the PCI of the third strongest cell includes:
inquiring the PCI of the third strongest cell in the neighbor cell list;
and when the PCI of the third strongest cell is not inquired, confirming that the third strongest cell is not the adjacent cell of the service cell.
9. An ANR (automatic neighbor relation) configuration method applied to a base station is characterized by comprising the following steps:
receiving a measurement report from user equipment, wherein the measurement report carries a system message of a third strongest cell measured by the user equipment;
and when the third strongest cell is determined not to be the neighbor cell of the serving cell based on the neighbor cell list and meets the base station neighbor cell judgment strategy, adding the third strongest cell to the neighbor cell list.
10. A user device, comprising: the device comprises a first measurement module, a query module and a judgment module; wherein,
the first measurement module is configured to obtain a physical cell identity PCI of a first strongest cell after cell search is performed;
the query module is configured to query the PCI of the first strongest cell in a PCI list issued by a base station, where the PCI list includes PCIs of all cells in a cluster private network where the base station is located;
the judging module is configured to judge the first strongest cell as a cell where the cell can reside when the PCI of the first strongest cell is found in the PCI list, and read a system message of the first strongest cell to complete cell selection; and the ue is further configured to determine the first strongest cell as a non-campeable cell and terminate cell selection when the PCI of the first strongest cell is not queried in the PCI list.
11. The ue of claim 10, wherein the first measuring module is further configured to determine, after the determining module determines the first strongest cell as the cell where the ue can not reside, the frequency point corresponding to the first strongest cell as an unavailable frequency point, so that the unavailable frequency point is not searched again when the cell search is performed again.
12. The ue of claim 11, wherein the first measuring module is further configured to change the frequency point corresponding to the first strongest cell from an unavailable frequency point to an available frequency point when the first strongest cell joins the trunked private network after determining the frequency point corresponding to the first strongest cell as the unavailable frequency point.
13. The ue of claim 10, wherein the first measurement module is further configured to scan all available frequency points of the cluster private network to obtain the PCI of the second strongest cell when the ue to which the first measurement module belongs performs initial cell selection;
the user equipment further comprises: a reading module, configured to read a system message of the second strongest cell based on the PCI of the second strongest cell, where the system message of the second strongest cell carries the PCI list.
14. A base station located in a trunked private network, the base station comprising: the device comprises a first sending module and a first receiving module; wherein,
the first sending module is configured to report physical cell identifiers PCI of all cells managed by the first sending module to an operation, administration and maintenance OAM entity when the cluster private network is created, expanded, or reduced; the ue is further configured to send the PCI list to the ue, where the PCI list is used for cell selection by the ue;
the first receiving module is configured to receive a PCI list from the OAM entity, where the PCI list includes PCIs of all cells in the cluster private network.
15. The base station of claim 14, wherein the first sending module is specifically configured to carry the PCI list in a system message and send the system message to the user equipment.
16. A user equipment, the user equipment comprising: the device comprises a second measuring module, a determining module and a second sending module; wherein,
the second measurement module is used for searching the cell according to the measurement configuration issued by the base station to obtain the physical cell identifier PCI of the third strongest cell;
the determining module is configured to directly read a system message of the third strongest cell after determining, according to the PCI of the third strongest cell, that the third strongest cell is not an adjacent cell to the serving cell;
the second sending module is configured to carry the system message in a measurement report and report the measurement report to the base station, where the system message is used for the base station to configure Automatic Neighbor Relation (ANR).
17. The ue of claim 16, wherein the measurement configuration carries a neighbor cell list of the serving cell;
correspondingly, the determining module is configured to query the PCI of the third strongest cell in the neighbor cell list; and when the PCI of the third strongest cell is not inquired, confirming that the third strongest cell is not the adjacent cell of the service cell.
18. A base station, characterized in that the base station comprises: a second receiving module and an ANR configuration module; wherein,
the second receiving module is configured to receive a measurement report from a user equipment, where the measurement report carries a system message of a third strongest cell measured by the user equipment;
the ANR configuration module is configured to add the third strongest cell to the neighbor cell list when it is determined that the third strongest cell is not a neighbor cell of the serving cell based on the neighbor cell list and the third strongest cell satisfies a base station neighbor cell decision policy.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510099866.7A CN105992168A (en) | 2015-03-06 | 2015-03-06 | Cell selection method and automatic neighbor cell relation configuration method and equipment |
| PCT/CN2015/098757 WO2016141752A1 (en) | 2015-03-06 | 2015-12-24 | Cell selection method, anr configuration method, device and computer storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510099866.7A CN105992168A (en) | 2015-03-06 | 2015-03-06 | Cell selection method and automatic neighbor cell relation configuration method and equipment |
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| CN105992168A true CN105992168A (en) | 2016-10-05 |
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