Disclosure of Invention
In order to solve the problem that the existing method adopting special reselection priority can not realize unified and consistent effective reselection priority control on the terminal, the invention provides a technical scheme of a cell public reselection priority broadcasting method based on PLMN, which comprises the following steps:
judging whether the shared cell is a shared cell or not;
if the cell is shared, judging whether to adopt PLMN public reselection priority;
if so, configuring public reselection priority based on PLMN in a broadcasting mode; if not, RRC RELEASE is used to configure the special priority.
The beneficial effects are that: the invention provides a cell public reselection priority broadcasting method based on PLMN, which can realize unified and consistent effective reselection priority control of a shared cell to different PLMN users.
Further, the configuring public reselection priority based on PLMN by adopting a broadcasting mode includes:
The NR SIB2 carries the reselection priorities cellReselectionPriority and cellReselectionSubPriority of the service cells and carries PLMN information;
The NR SIB4 carries reselection priorities of different frequency points, different frequency points carry different cellReselectionPriority and cellReselectionSubPriority and carry PLMN information;
The NR SIB5 carries reselection priorities of EUTRA frequency points of different systems, and different frequency points carry different cellReselectionPriority and cellReselectionSubPriority and carry PLMN information.
Further, different PLMNs in NR SIB2, NR SIB4 and NR SIB5 are configured differently cellReselectionPriority and cellReselectionSubPriority.
Further, the configuring public reselection priority based on PLMN by adopting a broadcasting mode includes:
The LTE SIB3 carries the reselection priority cellReselectionPriority of the service cell and PLMN information;
the LTE SIB5 carries reselection priorities of different frequency points, different frequency points carry different cellReselectionPriority and carry PLMN information;
The LTE SIB6 carries reselection priorities of different system UTRA frequency points, different frequency points carry different cellReselectionPriority and carry PLMN information;
The LTE SIB7 carries reselection priorities of different system GERAN frequency points, different frequency points carry different cellReselectionPriority and carry PLMN information;
The LTE SIB8 carries reselection priorities of different system CDMA2000 frequency points, different frequency points carry different cellReselectionPriority and carry PLMN information;
The LTE SIB24 carries reselection priorities of different system NR frequency points, and different frequency points carry different cellReselectionPriority and PLMN information.
Further, different PLMN configurations in LTE SIB3, LTE SIB5, LTE SIB6, LTE SIB7, LTE SIB8, and LTE SIB24 are different cellReselectionPriority.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention.
The current technology is to configure different network UEs with different operator PLMN dedicated priority reselection schemes, and to send RRC RELEASE messages to the UEs carrying dedicated frequency point priorities for reselection. However, the existing technology adopting the special reselection priority has some defects, and the problem that uniform and consistent effective reselection priority control cannot be realized on the terminal exists.
The 5G access network is also referred to as NR technology and the 4G access network is also referred to as LTE technology. And both NR and LTE broadcast public radio resource control information in a wireless network in a SIB (system information broadcast) system information broadcasting mode, wherein the public radio resource control information is used for issuing public configuration parameters of UE in a cell and controlling the behavior of the UE.
In LTE, SIB3 carries the public parameters of the reselection of the cell, including intra-band reselection, inter-band reselection and inter-system reselection, SIB5 carries the special parameters of inter-band reselection, SIB6 carries the special parameters of reselection to UTRA foreign system, SIB7 carries the special parameters of reselection to GERAN foreign system, SIB8 carries the special parameters of reselection to CDMA2000 foreign system, SIB24 carries the special parameters of reselection to NR foreign system.
SIB2 in NR carries the public parameter of the reselection of the cell, including intra-band reselection, inter-system reselection, SIB4 carries the special parameter of inter-band reselection, SIB5 carries the special parameter of reselection to NR heterogeneous system.
In order to solve the above problem that the terminal cannot be controlled by the effective reselection priority that is unified and consistent when the dedicated reselection priority is adopted, as shown in fig. 1, a method for broadcasting the cell common reselection priority based on PLMN in this embodiment includes:
judging whether the shared cell is a shared cell or not;
if the cell is shared, judging whether to adopt PLMN public reselection priority;
if so, configuring public reselection priority based on PLMN in a broadcasting mode; if not, RRC RELEASE is used to configure the special priority.
Specifically, the method for configuring public reselection priority based on PLMN by adopting a broadcast mode in this embodiment is as follows:
The reselection priorities cellReselectionPriority and cellReselectionSubPriority of the serving cells carried in NR SIB2 carry PLMN information, and different PLMNs may be configured with different cellReselectionPriority and cellReselectionSubPriority.
The NR SIB4 carries reselection priorities of different frequency points, and different frequency points carry different cellReselectionPriority and cellReselectionSubPriority and carry PLMN information. Different PLMNs may be configured with different cellReselectionPriority and cellReselectionSubPriority.
The NR SIB5 carries reselection priorities of EUTRA frequency points of different systems, and different frequency points carry different cellReselectionPriority and cellReselectionSubPriority and carry PLMN information. Different PLMNs may be configured with different cellReselectionPriority and cellReselectionSubPriority.
The reselection priority cellReselectionPriority of the serving cell carried in LTE SIB3 carries PLMN information, and different PLMNs may be configured with different cellReselectionPriority.
The LTE SIB5 carries reselection priorities of different frequency points, and different frequency points carry different cellReselectionPriority and carry PLMN information. Different PLMNs may be configured differently cellReselectionPriority.
The LTE SIB6 carries reselection priorities of different system UTRA frequency points, and different frequency points carry different cellReselectionPriority and PLMN information. Different PLMNs may be configured differently cellReselectionPriority.
The LTE SIB7 carries reselection priorities of the GERAN frequency points of the different systems, and different frequency points carry different cellReselectionPriority and carry PLMN information. Different PLMNs may be configured differently cellReselectionPriority.
The LTE SIB8 carries reselection priorities of different system CDMA2000 frequency points, and different frequency points carry different cellReselectionPriority and PLMN information. Different PLMNs may be configured differently cellReselectionPriority.
The LTE SIB24 carries reselection priorities of different system NR frequency points, and different frequency points carry different cellReselectionPriority and PLMN information. Different PLMNs may be configured differently cellReselectionPriority.
For example, for NR SIB2/4/5, broadcast PLMN-based reselection priorities may take the form:
PLMN1：{cellReselectionPriority，cellReselectionSubPriority}
PLMN2：{cellReselectionPriority，cellReselectionSubPriority}
……
The following form is also possible:
cellReselectionPriorityInfo{PLMN1，cellReselectionPriority
cellReselectionSubPriority}
cellReselectionPriorityInfo{PLMN2，cellReselectionPriority
cellReselectionSubPriority}
……
For example, a 5G shared cell, operating at frequency point 3349.98MHz, supports telecommunications PLMN 46011 and a unicom PLMN 46002. The communication 5G cell works at a frequency point 3550MHz, the telecommunication 5G cell works at a frequency point 3450MHz, the communication 4G cell works at a frequency point 1850MHz, and the telecommunication 4G cell works at a frequency point 1870MHz. Public reselection priority broadcast forms based on PLMNs are as follows:
SIB2：cellReselectionPriorityInfo{46011，5，0}
cellReselectionPriorityInfo{46002，5，0}
SIB4：3450MHz cellReselectionPriorityInfo{46011，6，0}
3550MHz cellReselectionPriorityInfo{46002，6，0}
SIB5：1870MHz cellReselectionPriorityInfo{46011，4，0}
1850MHz cellReselectionPriorityInfo{46002，4，0}
The embodiment provides a cell public reselection priority broadcasting method based on PLMN, which can realize unified and consistent effective reselection priority control of shared cells to different PLMN users.
It should be noted that while the 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 embodiments and all such alterations and modifications as fall within the scope of the invention.