Logical cell state updating method and apparatus, base station, terminal, and storage medium

Abstract

The logical cell state updating method, device, base station, terminal and storage medium provided by the embodiments of the present application set the PLMN identifier index corresponding to the logical cell in the PLMN identifier list in the physical cell broadcast message of the physical cell shared by the logical cell when setting the logical cell from the service state to the out-of-service state, set the PLMN identifier value corresponding to the PLMN identifier index as a target identifier value used for representing the out-of-service state of the logical cell, and then send the updated physical cell broadcast message to the terminal. In this way, when the terminal initiates an access to the base station by using the old PLMN identifier list to the logical cell which has been switched to the out-of-service state, the base station can accurately map to the PLMN identifier index corresponding to the logical cell in the updated PLMN identifier list, and can find that the corresponding PLMN identifier value is the target identifier value, thereby terminating the access process, which can improve the resource utilization and reduce the probability of terminal access failure.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the field of communication, in particular to a logical cell state updating method and device, a base station, a terminal and a storage medium. BACKGROUND

[0002] According to the latest version of the 3GPP NR standard, multiple logical cells can share one physical cell. When one of the logical cells is updated from a service state to an out-of-service state (for example, the logical cell is deleted), the logical cell information carried in the physical cell broadcast message 1 (System Information Block 1, SIB1) needs to be updated, specifically, the PLMN identifier index and the PLMN identifier value of the corresponding logical cell in the PLMN identifier list in the physical cell broadcast message 1 need to be deleted. This will cause a terminal (User Equipment, UE) that is in the process of accessing the deleted logical cell to not receive the updated SIB1, and to send the PLMN index of the logical cell to the base station (NG NodeB, gNB) according to the PLMN identifier list in the old SIB1. The base station will still normally perform the access process according to the PLMN identifier list in the new SIB1, but since the PLMN information of the logical cell has been deleted from the PLMN identifier list in the new SIB1, the base station does not timely end the UE access process, resulting in waste of cell resources, or the base station will map the PLMNIndex carried by the UE to other logical cells, thereby incorrectly performing the UE access process in other logical cells, and then due to core network authentication failure, resulting in access failure, and ultimately resulting in a large number of UE access failures during logical cell deletion. SUMMARY

[0003] Embodiments of the present application mainly provide a logical cell state updating method, device, base station, terminal and storage medium, which aims to solve the problem in the related art that when a UE that has not received a new physical cell broadcast message uses a PLMN identifier list in an old physical cell broadcast message to initiate a cell access to a base station during a process in which a logical cell is switched to an out-of-service state, the base station still normally performs the access process, resulting in access failure and resource waste.

[0004] To solve the above technical problems, embodiments of the present application provide a logical cell state updating method, comprising:

[0005] When a certain logical cell sharing a physical cell is set from a service state to an out-of-service state, a PLMN (Public Land Mobile Network) identity index corresponding to the logical cell is reserved in a PLMN identity list in a physical cell broadcast message of the physical cell, and a PLMN identity value corresponding to the PLMN identity index is set as a target identity value for representing that the logical cell is in the out-of-service state.

[0006] The updated physical cell broadcast message is sent to a terminal.

[0007] To solve the above technical problem, the embodiment of the present application further provides a logical cell state updating method, comprising:

[0008] receiving a physical cell broadcast message;

[0009] When a PLMN (Public Land Mobile Network) identity value corresponding to a certain PLMN identity index is found as a target identity value for representing that a logical cell is in an out-of-service state from a PLMN identity list in the physical cell broadcast message, the logical cell corresponding to the PLMN identity index is set as being in the out-of-service state.

[0010] To solve the above technical problem, the embodiment of the present application further provides a logical cell state updating device, comprising:

[0011] an updating control module, configured to, when a certain logical cell sharing a physical cell is set from a service state to an out-of-service state, reserve a PLMN (Public Land Mobile Network) identity index corresponding to the logical cell in a PLMN identity list in a physical cell broadcast message of the physical cell, and set a PLMN identity value corresponding to the PLMN identity index as a target identity value for representing that the logical cell is in the out-of-service state.

[0012] a message sending module, configured to send the updated physical cell broadcast message to a terminal.

[0013] To solve the above technical problem, the embodiment of the present application further provides a logical cell state updating device, comprising:

[0014] a message receiving module, configured to receive a physical cell broadcast message;

[0015] an updating processing module, configured to, when a PLMN (Public Land Mobile Network) identity value corresponding to a certain PLMN identity index is found as a target identity value for representing that a logical cell is in an out-of-service state from a PLMN identity list in the physical cell broadcast message, set the logical cell corresponding to the PLMN identity index as being in the out-of-service state.

[0016] To solve the above technical problems, the embodiment of the present application further provides a base station, comprising a first processor, a first memory and a first communication bus connecting the first processor and the first memory;

[0017] The first memory stores a first computer program, which can be executed by the first processor to implement the steps of the logical cell state updating method on the base station side as described above.

[0018] To solve the above technical problems, the embodiment of the present application further provides a terminal, comprising a second processor, a second memory and a second communication bus connecting the second processor and the second memory;

[0019] The second memory stores a second computer program, which can be executed by the second processor to implement the steps of the logical cell state updating method on the terminal side as described above.

[0020] To solve the above technical problems, the embodiment of the present application further provides a computer readable storage medium, which stores a first computer program, which can be executed by a first processor to implement the steps of the logical cell state updating method on the base station side as described above;

[0021] Or, the computer readable storage medium stores a second computer program, which can be executed by a second processor to implement the steps of the logical cell state updating method on the terminal side as described above.

[0022] The logical cell state updating method, device, base station, terminal and storage medium provided by the embodiment of the present application, when setting a certain logical cell of a shared physical cell from a service state to an out-of-service state, retaining a PLMN identifier index corresponding to the logical cell in a PLMN identifier list in a physical cell broadcast message of the physical cell, setting a PLMN identifier value corresponding to the PLMN identifier index as a target identifier value for representing the out-of-service state of the logical cell, and then sending the updated physical cell broadcast message to a terminal, even if a terminal that has not received the physical cell broadcast message initiates access to the logical cell that has been switched to the out-of-service state using the PLMN identifier list in the old physical cell broadcast message, the base station can accurately map to the PLMN identifier index corresponding to the logical cell in the updated PLMN identifier list and find that the corresponding PLMN identifier value is currently the target identifier value for representing the out-of-service state of the logical cell, so that the base station can terminate the access process as soon as possible, avoid the continuous processing of the access process, improve the resource utilization rate, and reduce the probability of terminal access failure.

[0023] Other features and corresponding advantages of the present application will be set forth in part in the description that follows, and in part will be apparent from the description or can be learned by practice of the application. The advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A logical cell state updating method flowchart provided by the base station side of the embodiment one of the present application;

[0025] Figure 2 A UE connection processing procedure flowchart provided by the embodiment one of the present application;

[0026] Figure 3 A logical cell state updating method flowchart provided by the terminal side of the embodiment one of the present application;

[0027] Figure 4 A logical cell setting back to service state procedure flowchart provided by the embodiment one of the present application;

[0028] Figure 5 A LIMN information deletion procedure flowchart provided by the embodiment one of the present application;

[0029] Figure 6 A logical cell state updating device structure diagram provided by the base station side of the embodiment two of the present application;

[0030] Figure 7 A logical cell state updating device structure diagram provided by the terminal side of the embodiment two of the present application;

[0031] Figure 8 A logical cell blocking processing flowchart provided by the embodiment two of the present application;

[0032] Figure 9 A logical cell deletion processing flowchart provided by the embodiment two of the present application;

[0033] Figure 10 A logical cell deactivation processing flowchart provided by the embodiment two of the present application;

[0034] Figure 11 A UE connection processing procedure flowchart provided by the embodiment two of the present application;

[0035] Figure 12 A logical cell unblocking processing flowchart provided by the embodiment two of the present application;

[0036] Figure 13 A LIMN information deletion procedure flowchart provided by the embodiment two of the present application;

[0037] Figure 14A base station structure block diagram provided for the third embodiment of the present application is shown in Figure 3.

[0038] Figure 15 A terminal structure block diagram provided for the third embodiment of the present application is shown in Figure 4. DETAILED DESCRIPTION

[0039] In order to make the objects, technical solutions and advantages of the present application clearer, further detailed description will be made to the embodiments of the present application in combination with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0040] Embodiment 1

[0041] In the related art, multiple logical cells can share one physical cell. When one of the logical cells is deleted, blocked or deactivated, the PLMN identifier index and PLMN identifier value of the logical cell will be deleted in the corresponding PLMN identifier list of the physical cell, and the terminal will be notified through SIB1. For example, it is assumed that logical cells 1-5 share one physical cell, and the corresponding PLMN identifier list of the physical cell includes the PLMN identifier index and PLMN identifier value of the five logical cells, as shown in Table 1. The PLMN identifier values corresponding to the PLMN identifier indexes 1-5 in Table 1 are respectively the PLMN identifier values corresponding to the logical cells 1-5.

[0042] Table 1

[0043] PLMN identity index PLMN identity 1 A 2 B 3 C 4 D 5 E

[0044] It is assumed that at a certain moment, logical cell 2 is deleted, and then Table 1 above will be updated to Table 2 below and the terminal will be notified through the physical cell broadcast message. The PLMN identifier values corresponding to the PLMN identifier indexes 1-4 in Table 2 are respectively the PLMN identifier values corresponding to the logical cells 1, 3-5.

[0045] Table 2

[0046]

[0047]

[0048] When some terminals in the access process do not receive the physical cell broadcast message, and initiate the access request of logical cell 2 to the base station according to table 1, the base station maps the PLMN identification index of logical cell 2 sending the logical cell to the PLMN identification index 2 in table 2 after receiving the request, but the PLMN identification index 2 in table 2 is actually the PLMN identification index corresponding to logical cell 3, and the base station does not know that the terminal does not receive the physical cell broadcast message, so that the subsequent access process is normally performed, and the waste of resources or the failure of terminal access occurs, and the subsequent re-access process of the terminal is prolonged.

[0049] The embodiment provides a clever and good logical cell state updating method for solving the above problems, please refer to Figure 1 The method comprises the following steps of:

[0050] S101: In the case that a certain logical cell of a shared physical cell is set to be in the out-of-service state from the in-service state, the PLMN identification index corresponding to the logical cell in the PLMN identification list in the physical cell broadcast message of the physical cell is reserved, and the PLMN identification value corresponding to the PLMN identification index is set to a target identification value for representing that the logical cell is in the out-of-service state.

[0051] S102: Send the updated physical cell broadcast message to the terminal. It should be understood that the physical cell broadcast message here can adopt SIB1.

[0052] That is, in the embodiment, when the logical cell of a certain shared physical cell is switched to the out-of-service state from the in-service state, the PLMN identification index corresponding to the logical cell (that is, the position of the PLMN identification value corresponding to the logical cell in the PLMN identification list) and the PLMN identification value are reserved in the PLMN identification list in the physical cell broadcast message of the shared physical cell, instead of being simply deleted. For example, taking the above example, for example, it is assumed that logical cells 1-5 share a physical cell, and the PLMN identification list corresponding to the physical cell at the initial moment is shown in table 1. It is assumed that when the logical cell 2 is switched to the out-of-service state at a certain moment, table 1 is updated to table 3 as follows and the terminal is notified by the physical cell broadcast message. The PLMN identification values corresponding to the PLMN identification indexes 1-5 in table 2 are still the PLMN identification values corresponding to the logical cells 1-5 one by one.

[0053] Table 3

[0054] PLMN identity index PLMN identity value 1 A 2 Target identity value 3 C 4 D 5 E

[0055] When some terminals in the access process do not receive the physical cell broadcast message, and initiate the access request of logical cell 2 to the base station according to table 1, the base station will map the PLMN identification index of logical cell 2 to the PLMN identification index 2 in table 3 after receiving the request, and the PLMN identification index 2 in table 3 is actually still the PLMN identification index corresponding to logical cell 2, but the base station will query that the identification value corresponding to the PLMN identification index at this time is the target identification value, so that it can be known that logical cell 2 is currently in the out-of-service state, and therefore the base station can immediately terminate the access process of the terminal, which can not only improve the resource utilization rate, but also reduce the probability of terminal access failure, avoid the situation that a large number of terminal access failures lead to KPI decline, and make the terminal re-initiate the access of other logical cells in the service state as soon as possible, shorten the subsequent re-access process of the terminal, improve the efficiency of terminal access, and further improve the satisfaction of user experience.

[0056] In the embodiment, after S102, a processing process when receiving the RRC connection request sent by the terminal is shown in Figure 2 , which includes:

[0057] S201: Obtain the PLMN identification index from the radio resource control (RRC) connection setup complete message sent by the terminal.

[0058] S202: According to the obtained PLMN identification index, find the corresponding PLMN identification value in the PLMN identification list.

[0059] S203: Determine whether the found PLMN identification value is the target identification value, if yes, go to S204; otherwise, go to S205.

[0060] S204: Send the RRC release message to the terminal to terminate the terminal access process.

[0061] S205: Normally process the subsequent access process.

[0062] It should be understood that the process steps in the above Figure 1 and Figure 2 are executed by but not limited to the base station.

[0063] Correspondingly, on the terminal side, when the terminal receives the physical cell broadcast message, the logical cell state updating method on the terminal side is shown in Figure 3 , which includes:

[0064] S301: Receive the physical cell broadcast message.

[0065] S302: When the PLMN identity value corresponding to the PLMN identity index is found from the PLMN identity list of the physical cell broadcast message, and the PLMN identity value is the target identity value representing that the logical cell is not in the service state, the logical cell corresponding to the PLMN identity index is set to be not in the service state.

[0066] For example, based on the example shown in Table 3, when the terminal finds that the PLMN identity value corresponding to the PLMN identity index 2 is the target identity value from the received PLMN identity list of the physical cell broadcast message, the terminal can synchronously set the logical cell 2 from the service state to the not-in-service state.

[0067] It should be understood that, in the embodiment, the case that the logical cell of the shared physical cell is set from the service state to the not-in-service state can include, but is not limited to, at least one of the following:

[0068] The logical cell is deleted;

[0069] The logical cell is blocked;

[0070] The logical cell is deactivated.

[0071] It should be understood that, in the embodiment, the target identity value representing that the logical cell is not in the service state can be flexibly set, and at least needs to meet that the base station and the terminal can confirm that the corresponding logical cell is in the not-in-service state according to the target identity value. For example, in one example, the target identity value can be set as the PLMN reserved for private network in ITU-T E.212: MCC (Mobile Country Code, translated as mobile country code): 999, MNC (Mobile Network Code, mobile network code): 999.

[0072] Optionally, in some examples of the embodiment, when the logical cell of the shared physical cell is set from the service state to the not-in-service state, the cellReservedForOperatorUse information element of the logical cell can also be set to the reserved state reserved in the PLMN identity list. In this way, when the terminal receives the physical cell broadcast message, when it is identified that the cellReservedForOperatorUse information element corresponding to a logical cell is reserved, it can further confirm that the logical cell is in the not-in-service state, and the accuracy of the cell state update can be further improved.

[0073] Optionally, in some examples of the embodiment, when the logical cell of a certain shared physical cell is switched from the in-service state to the out-of-service state, at least one of the tracking area code and the radio access network area code of the logical cell can also be removed from the PLMN identifier list, so as to reduce the occupation of resources and improve the resource utilization.

[0074] In the embodiment, when the logical cell is set from the in-service state to the out-of-service state, the PLMN identifier value corresponding to the PLMN identifier index corresponding to the logical cell in the PLMN identifier list of the physical cell shared by the logical cell is reserved, and optionally, at least one of the following steps can also be included, but is not limited to, before the updated PLMN identifier list is generated to generate a physical cell broadcast message and sent to the terminal:

[0075] In the PLMN identifier list, the cell information element of the logical cell for the operator is set to the reserved state;

[0076] In the PLMN identifier list, the tracking area code of the logical cell is removed;

[0077] In the PLMN identifier list, the radio access network area code of the logical cell is removed.

[0078] Optionally, in some examples of the embodiment, when a certain logical cell of a shared physical cell is set from the out-of-service state to the in-service state, as shown in Figure 4 , the steps can also include:

[0079] S401: In the physical cell broadcast message of the physical cell shared by the logical cell, the PLMN identifier value corresponding to the PLMN identifier index corresponding to the logical cell in the PLMN identifier list is set from the target identifier value to the identifier value corresponding to the logical cell, for example, the original identifier value corresponding to the logical cell can be set back.

[0080] S402: The updated physical cell broadcast message is sent to the terminal. It should be understood that the physical cell broadcast message here can also use SIB1.

[0081] It should be understood that, Figure 4 the steps shown in may also be performed by, but not limited to, a base station. In the embodiment, since the PLMN identifier index corresponding to the logical cell is reserved in the PLMN identifier list when the logical cell is switched from the in-service state to the out-of-service state, when the logical cell is switched from the out-of-service state to the in-service state again, the PLMN identifier value corresponding to the PLMN identifier index corresponding to the logical cell in the PLMN identifier list can be directly set back to the original identifier value, so that the PLMN identifier index in the PLMN identifier list does not need to be reset, which can improve the processing efficiency and the resource utilization.

[0082] For example, taking the example shown in Table 3 above, assuming that the logical cell is set from the out-of-service state to the in-service state again (for example, logical cell 3 is previously blocked, and then unblocked), in Table 3, the PLMN identifier value corresponding to the PLMN identifier index of logical cell 2 is set back to B.

[0083] Optionally, in some examples of the present embodiment, in order to improve the resource utilization of the PLMN identifier list, while trying to avoid the above problems, after S102 generates the physical cell broadcast message according to the updated PLMN identifier list and sends it to the terminal, please refer to Figure 5

[0084] S501: When it is detected that the terminal is currently in a low access rate period, each PLMN identifier index corresponding to the target identifier value in the current PLMN identifier list in the physical cell broadcast message of the physical cell is deleted, as well as the corresponding target identifier value.

[0085] S502: Send the updated physical cell broadcast message to the terminal. It should be understood that the physical cell broadcast message here can also be used for SIB1.

[0086] The terminal low access rate period in the present embodiment refers to a period in which the terminal initiates access with a low probability, for example, the period from 0:00 to 4:00. Since the PLMN identifier index corresponding to the target identifier value in the PLMN identifier list is deleted in the present embodiment, and the corresponding target identifier value is sent to the terminal through the physical cell broadcast message during the terminal low access rate period, the above problems can be avoided as much as possible; at the same time, the PLMN identifier index and the PLMN identifier value corresponding to the logical cell in the out-of-service state in the PLMN identifier list are cleared to release the resources occupied thereby, and the resource utilization can be improved at the same time.

[0087] For example, taking the example shown in Table 3 above, assuming that when it is detected that the terminal is currently in a low access rate period, logical cell 2 is still in the out-of-service state, then the PLMN identifier index 2 corresponding to logical cell 2 in Table 3 and the corresponding PLMN identifier value can be cleared as the target identifier value, and one example of the cleared Table 2 can be seen from Table 2, thereby releasing the resources occupied thereby, avoiding long-term occupation, and improving the rationality of resource utilization.

[0088] ​It can be seen that the logical cell state updating method provided in the embodiment can solve the problem of gNB identifying UE selecting PLMN error caused by directly deleting the corresponding PLMN identifier index and PLMN identifier value of the logical cell of the shared physical cell and issuing it to the terminal through the air interface SIB1 when the logical cell is deleted, blocked or deactivated, etc., ensuring that the information element selectedPLMN-Identity carried by the UE during the updating of the air interface SIB1 can be correctly mapped to the corresponding PLMN identifier index, and according to the corresponding target identifier value, it can be identified that the UE carries the PLMN identifier index, and the UE access process is terminated in time, avoiding the KPI decline caused by a large number of UE access failures.

[0089] Embodiment two:

[0090] For ease of understanding, the embodiment is based on the above-mentioned embodiments and further provides a logical cell state updating device which can be arranged on but is not limited to a base station, please refer to Figure 6 as shown, comprising:

[0091] The update control module 601 is configured to set a certain logical cell of a shared physical cell from a service state to an out-of-service state, reserve the PLMN identifier index corresponding to the logical cell in the PLMN identifier list in the physical cell broadcast message of the physical cell, and set the PLMN identifier value corresponding to the PLMN identifier index as a target identifier value for representing that the logical cell is in the out-of-service state. For specific updating process, please refer to the above-mentioned embodiments, which will not be repeated here.

[0092] The message sending module 602 is configured to send the updated physical cell broadcast message to the terminal. For specific sending process, please refer to the above-mentioned embodiments, which will not be repeated here.

[0093] It should be understood that the functions of the update control module 601 and the message sending module 602 in the embodiment can be realized by but not limited to the processor of the base station. The update control module 601 can also realize the functions corresponding to the steps shown in the above-mentioned embodiments. Figure 2 , Figures 4-5

[0094] For ease of understanding, the embodiment is based on the above-mentioned embodiments and further provides a logical cell state updating device which can be arranged on but is not limited to a terminal, please refer to Figure 7 as shown, comprising:

[0095] The message receiving module 701 is configured to receive a physical cell broadcast message.

[0096] ​The updating processing module 702 is configured to: when a PLMN identifier value corresponding to a certain PLMN identifier index in a PLMN identifier list of a physical cell broadcast message is a target identifier value used to represent that a logical cell is out of service, set the logical cell corresponding to the PLMN identifier index as out of service.

[0097] For the convenience of understanding, the following describes several application examples of the logical cell state updating apparatus on the base station side and the terminal side.

[0098] Application Example 1

[0099] The preset logical cell 1 and the logical cell 2 share one physical cell A, the logical cell 1 is blocked, and the physical cell air interface SIB1 is updated. For an example of the processing process, please refer to Figure 8 As shown in the figure, the method comprises the following steps.

[0100] S801: The gNB (an example of a base station) initiates a logical cell 1 blocking action.

[0101] S802: The gNB generates an updated SIB1 of the physical cell A, and in the PLMN identifier table PLMN-IdentityInfoList in the SIB1, the PLMN identifier value corresponding to the PLMN identifier index corresponding to the logical cell 1 is 999999.

[0102] Optionally, the cellReservedForOperatorUse corresponding to the logical cell 1 in the PLMN-IdentityInfoList in the SIB1 of the physical cell A can also be set as reserved, and the trackingAreaCode and ranac are no longer carried.

[0103] S803: The updated SIB1 is sent.

[0104] S804: The logical cell blocking process ends.

[0105] Application Example 2

[0106] The preset logical cell 1 and the logical cell 2 share one physical cell A, the logical cell 2 is deleted, and the physical cell air interface SIB1 is updated. For an example of the processing process, please refer to Figure 9 As shown in the figure, the method comprises the following steps.

[0107] S901: The gNB initiates a logical cell 2 deletion action.

[0108] S902: The gNB generates the updated SIB1 of the physical cell A, and in the PLMN identity table PLMN-IdentityInfoList in the SIB1, the PLMN identity value corresponding to the PLMN identity index corresponding to the logical cell 2 is 999999.

[0109] Optionally, the cellReservedForOperatorUse corresponding to the logical cell 2 in the PLMN-IdentityInfoList in the SIB1 of the physical cell A is also set to reserved; and the trackingAreaCode and ranac are no longer carried.

[0110] S903: The updated SIB1 is sent.

[0111] S904: The logical cell deletion process ends.

[0112] Application Example 3

[0113] The preset logical cell 1 and logical cell 2 share one physical cell A, the logical cell 2 is deactivated, and the physical cell air interface SIB1 is updated. For a processing process of an example, please refer to Figure 10 As shown, it includes:

[0114] S1001: The gNB initiates the deactivation of the logical cell 2.

[0115] S1002: The gNB generates the updated SIB1 of the physical cell A, and in the PLMN identity table PLMN-IdentityInfoList in the SIB1, the PLMN identity value corresponding to the PLMN identity index corresponding to the logical cell 2 is 999999.

[0116] Optionally, the cellReservedForOperatorUse corresponding to the logical cell 2 in the PLMN-IdentityInfoList in the SIB1 of the physical cell A is also set to reserved; and the trackingAreaCode and ranac are no longer carried.

[0117] S1003: The updated SIB1 is sent.

[0118] S1004: The logical cell deletion process ends.

[0119] Application Example 4

[0120] Based on the above application example 1, the preset logical cell 1 and logical cell 2 share one physical cell A, the logical cell 1 is blocked, and during the updating of the physical cell air interface SIB1, the processing process of the UE access and PLMN mapping is as followsFigure 11 As shown, including:

[0121] S1101: gNB initiates logical cell 1 blocking process, and sends the corresponding updated SIB1.

[0122] S1102: UE initiates access to the logical cell 2 of the physical cell A.

[0123] S1103: gNB receives selectedPLMN-Identity (PLMN identity index) carried in RRCSetupComplete, and checks whether it is in PLMN-IdentityInfoList in SIB1. If not, go to S1104; otherwise, go to S1105.

[0124] S1104: initiate UE release process, send RRCRelease message to UE, and carry deprioritisationReq information element.

[0125] S1105: map selectedPLMN-Identity to the corresponding PLMN to complete the normal UE access process.

[0126] The processing procedure is similar for the PLMN mapping when UE accesses after logical cell deletion and deactivation process Figure 11 As shown, no longer tedious.

[0127] Application example 5

[0128] The preset logical cell 1 and logical cell 2 share a physical cell A, wherein the PLMN identifier value of logical cell 1 is 46001, the PLMN identifier value of logical cell 2 is 46003, logical cell 2 is blocked, and after updating the physical cell air interface SIB1, the processing procedure of unblocking logical cell 2 again is shown in Figure 12 As shown, including:

[0129] S1201: initiate logical cell 2 blocking.

[0130] S1202: gNB has completed logical cell 2 blocking, and updated the PLMN identifier value corresponding to logical cell 2 in PLMN-IdentityInfoList of physical cell SIB1 to 999999.

[0131] S1203: initiate the unblocking process of the logical cell 2.

[0132] S1204: set the PLMN identifier value corresponding to the logical cell 2 in PLMN-IdentityInfoList of the physical cell air interface SIB1 back to the actual value 460003.

[0133] Application Example 6

[0134] Preset logical cell 1 and logical cell 2 share a physical cell A, delete logical cell 2, update the physical cell air interface SIB1, when the number of network users enters a low value period, update the air interface SIB1 again, delete the PLMN information corresponding to the logical cell that is not in service. For this process, refer to Figure 13 Shown, including:

[0135] S1301: The gNB has completed the deletion of logical cell 2 and updated the PLMN identity value corresponding to logical cell 2 in the PLMN-IdentityInfoList of the physical cell SIB1 to 999999.

[0136] S1302: Get the current time.

[0137] S1303: The gNB determines whether the network user volume has entered a low period (e.g., 2 a.m.). If so, the process proceeds to S1304; otherwise, the process proceeds to S1302.

[0138] S1304: Delete the PLMN index and PLMN identification value corresponding to the deleted, blocked or deactivated logical cell in the PLMN information list of the physical cell SIB1 to generate an updated SIB1.

[0139] S1305: Send the updated SIB1.

[0140] Example 3:

[0141] This embodiment also provides a base station. Figure 14 As shown, it includes a first processor 1401, a first memory 1402 and a first communication bus 1403 connecting the first processor 1401 and the first memory 1402;

[0142] The first memory 1402 stores a first computer program, which can be executed by the first processor 1401 to implement the steps of the method for updating the logical cell state on the base station side as shown in the above embodiments.

[0143] This embodiment also provides a terminal, see Figure 15 As shown, it includes a second processor 1501, a second memory 1502 and a second communication bus 1503 connecting the second processor 1501 and the second memory 1502;

[0144] The second memory 1502 stores a second computer program, and the second computer program can be executed by the second processor 1501 to implement the steps of the method for updating the logical cell status on the terminal side as shown in the above embodiments.

[0145] The embodiment also provides a computer readable storage medium storing a first computer program, which can be executed by a first processor to implement the steps of the logical cell state updating method on the base station side as shown in the above embodiments.

[0146] Alternatively, the computer readable storage medium stores a second computer program, which can be executed by a second processor to implement the steps of the logical cell state updating method on the terminal side as shown in the above embodiments.

[0147] The computer readable storage medium in the embodiment can be disposed on, but not limited to, the base station, for example, disposed on the BBU of the base station, and includes a volatile or non-volatile, removable or non-removable medium implemented in any method or technology for storing information (such as computer readable instructions, data structures, computer program modules or other data). The computer readable storage medium includes, but is not limited to, RAM (Random Access Memory), ROM (Read-Only Memory), EEPROM (Electrically Erasable Programmable read only memory), flash memory or other memory technology, CD-ROM (Compact Disc Read-Only Memory), digital versatile disc (DVD) or other optical disc storage, magnetic cassette, magnetic tape, magnetic disk storage or other magnetic storage device, or any other medium that can be used to store desired information and can be accessed by a computer.

[0148] The embodiment also provides a first computer program (or computer software), which can be distributed on a computer readable medium and executed by a computer device to implement the steps of the logical cell state updating method on the base station side as described above; and in some cases, at least one step shown or described can be executed in an order different from that described in the above embodiments.

[0149] The embodiment also provides a second computer program (or computer software), which can be distributed on a computer readable medium and executed by a computer device to implement the steps of the logical cell state updating method on the terminal side as described above; and in some cases, at least one step shown or described can be executed in an order different from that described in the above embodiments.

[0150] The embodiments also provide a computer program product comprising a computer readable means on which the computer program as defined above is stored.

[0151] It will be appreciated by persons skilled in the art that all or some of the steps of the methods disclosed above, the functions of the system, the units of the device can be embodied as software (which can be implemented by computer program codes), firmware, hardware, or any combination of them. In a hardware implementation, the division of the functional modules / units between the above description can not necessarily correspond to physical division; for example, one physical component can have multiple functions, or one function or step can be performed by several physical components working together. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit.

[0152] In addition, it is well known to those of ordinary skill in the art that communication media typically embodies computer-readable instructions, data structures, computer program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and can include any information delivery media. Therefore, the present application is not limited to any particular hardware and software combination.

[0153] The above further describes the embodiments of the present application in conjunction with specific embodiments, and cannot be deemed to limit the specific implementation of the present application to these descriptions. For those of ordinary skill in the art, some simple derivations or replacements can be made without departing from the concept of the present application, and all of them should be considered to fall within the protection scope of the present application.

Claims

1. A method for updating a logical cell state, comprising: When a logical cell of a shared physical cell is changed from a service state to an out-of-service state, retaining the PLMN identity index corresponding to the logical cell in the public land mobile network PLMN identity list in the physical cell broadcast message of the physical cell, and setting the PLMN identity value corresponding to the PLMN identity index as a target identity value for indicating that the logical cell is in the out-of-service state; The updated physical cell broadcast message is sent to the terminal.

2. The method for updating the logical cell status according to claim 1, wherein: The situation where a logical cell of the shared physical cell is set from a service state to an out-of-service state includes at least one of the following: Delete the logical cell; Block the logical cell; Deactivate the logical cell.

3. The method for updating the logical cell status according to claim 1, wherein: Before sending the updated physical cell broadcast message to the terminal, the method further includes at least one of the following: In the PLMN identification list, setting the reserved cell information element of the logical cell to a reserved state; Remove the tracking area code of the logical cell from the PLMN identity list; In the PLMN identification list, remove the radio access network area code of the logical cell.

4. The method for updating the logical cell status according to claim 1, wherein: The method further includes: in a case where a logical cell of the shared physical cell is set from an out-of-service state to an in-service state, comprising: updating the PLMN identifier value corresponding to the PLMN identifier index corresponding to the logical cell in the PLMN identifier list in the physical cell broadcast message from the target identifier value to the identifier value corresponding to the logical cell; The updated physical cell broadcast message is sent to the terminal.

5. The method for updating the logical cell status according to any one of claims 1 to 4, characterized in that: After sending the updated physical cell broadcast message to the terminal, the method further includes: When it is detected that the terminal currently enters a low access rate period, the PLMN identifier indexes and corresponding target identification values ​​of the PLMN identifier values ​​corresponding to the PLMN identifier indexes in the physical cell broadcast message are deleted, and the PLMN identifier values ​​corresponding to the PLMN identifier indexes are the target identifier values; The updated physical cell broadcast message is sent to the terminal.

6. The method for updating the logical cell status according to any one of claims 1 to 4, characterized in that: After sending the updated physical cell broadcast message to the terminal, the method further includes: According to the PLMN identity index obtained from the radio resource control RRC connection setup complete message sent from the terminal, when the PLMN identity value found in the PLMN identity list is the target identity value, an RRC release message is sent to the terminal.

7. A method for updating a logical cell state, comprising: Receive physical cell broadcast messages; When a PLMN identity value corresponding to a certain PLMN identity index is found in the PLMN identity list of the physical cell broadcast message as a target identity value for representing that the logical cell is in an out-of-service state, the logical cell corresponding to the PLMN identity index is set to be in an out-of-service state.

8. A logical cell status updating device, characterized in that: include: an update control module configured to, when a logical cell of a shared physical cell is changed from an in-service state to an out-of-service state, retain a PLMN identifier index corresponding to the logical cell in a PLMN identifier list in a physical cell broadcast message of the physical cell, and set a PLMN identifier value corresponding to the PLMN identifier index to a target identifier value for indicating that the logical cell is in an out-of-service state; The message sending module is used to send the updated physical cell broadcast message to the terminal.

9. A logical cell status updating device, characterized in that: include: A message receiving module, configured to receive physical cell broadcast messages; The update processing module is configured to, when a PLMN identifier value corresponding to a certain PLMN identifier index is found in the PLMN identifier list of the physical cell broadcast message to be a target identifier value for representing that the logical cell is in an out-of-service state, set the logical cell corresponding to the PLMN identifier index to be in an out-of-service state.

10. A base station, characterized in that: comprising a first processor, a first memory, and a first communication bus connecting the first processor and the first memory; The first memory stores a first computer program, and the first computer program can be executed by the first processor to implement the steps of the logical cell status update method according to any one of claims 1 to 6.

11. A terminal, characterized in that: comprising a second processor, a second memory, and a second communication bus connecting the second processor and the second memory; The second memory stores a second computer program, and the second computer program can be executed by the second processor to implement the steps of the logical cell status update method according to claim 7.

12. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a first computer program, and the computer program can be executed by a first processor to implement the steps of the logical cell status update method according to any one of claims 1 to 6; Alternatively, the computer-readable storage medium stores a second computer program, and the computer program can be executed by a second processor to implement the steps of the logical cell status update method according to claim 7.

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