A cell processing method, device and system

Abstract

The embodiment of the present application discloses a cell processing method, device and system, the cell processing method comprising: a first communication node sends a neighbor list; wherein the neighbor list comprises: a neighbor list connected to the first core network and at least one neighbor list only connected to the second core network; or, a neighbor list only connected to the first core network, a neighbor list connected to both the first core network and the second core network, and at least one neighbor list only connected to the second core network. In the embodiment of the present invention, the first communication node independently configures a neighbor list for the neighbor only connected to the second core network by sending a neighbor list, so that for the second communication node that does not support the second core network, it is not necessary to process the neighbor list only connected to the second core network, but only needs to process the neighbor list connected to the first core network, so that the cell processing failure will not be caused, and the cell processing efficiency is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communications, and in particular to a cell processing method, device and system. Background Art

[0002] The current Narrow Band Internet of Things (NB-IoT) and / or Evolved Machine Type Communication (eMTC) technologies are developed based on the Long Term Evolved (LTE) technology, so NB-IoT base stations and / or eMTC base stations can only access the 4G core network (EPC); however, with the research of 5G technology, the architecture of the core network has also changed, forming the 5G core network (5GC). In order to take advantage of the architectural advantages of 5GC and the flexibility of network deployment, it is hoped that NB-IoT base stations and / or eMTC base stations can also access 5GC. Summary of the invention

[0003] The embodiments of the present application provide a cell processing method, device and system, which can improve the cell processing efficiency.

[0004] The present application provides a cell processing method, including:

[0005] The first communication node sends a neighbor list; wherein the neighbor list includes:

[0006] A neighbor cell list connected to the first core network and at least one neighbor cell list connected only to the second core network;

[0007] Alternatively, a neighbor cell list connected only to the first core network, a neighbor cell list connected to both the first core network and the second core network, and at least one neighbor cell list connected only to the second core network.

[0008] The present application provides a cell processing method, including:

[0009] The communication node receives a neighbor list; wherein the neighbor list includes:

[0010] A neighbor cell list connected to the first core network and at least one neighbor cell list connected only to the second core network;

[0011] Alternatively, a neighboring cell list connected only to the first core network, a neighboring cell list connected to both the first core network and the second core network, and at least one neighboring cell list connected only to the second core network;

[0012] When the communication node does not support the second core network, the communication node processes the neighboring cells in the neighboring cell list connected to the first core network; or the communication node processes the neighboring cells in the neighboring cell list connected only to the first core network and the neighboring cell list connected to both the first core network and the second core network;

[0013] Alternatively, when the communication node supports the second core network, the communication node processes all neighbor cells in the neighbor cell list.

[0014] An embodiment of the present application provides a communication node, including:

[0015] A sending module is used to send a neighboring cell list; wherein the neighboring cell list includes:

[0016] A neighbor cell list connected to the first core network and at least one neighbor cell list connected only to the second core network;

[0017] Alternatively, a neighbor cell list connected only to the first core network, a neighbor cell list connected to both the first core network and the second core network, and at least one neighbor cell list connected only to the second core network.

[0018] An embodiment of the present application provides a communication node, including:

[0019] A receiving module is used to receive a neighboring cell list, wherein the neighboring cell list includes:

[0020] A neighbor cell list connected to the first core network and at least one neighbor cell list connected only to the second core network;

[0021] Alternatively, a neighboring cell list connected only to the first core network, a neighboring cell list connected to both the first core network and the second core network, and at least one neighboring cell list connected only to the second core network;

[0022] A processing module, configured to process a neighboring cell in a neighboring cell list connected to the first core network when the second core network is not supported; or process a neighboring cell list connected only to the first core network and a neighboring cell list connected to both the first core network and the second core network;

[0023] Alternatively, when the second core network is supported, all neighbor cells in the neighbor cell list are processed.

[0024] An embodiment of the present application provides a communication node, including a processor and a computer-readable storage medium, wherein the computer-readable storage medium stores instructions, and when the instructions are executed by the processor, any of the above-mentioned cell processing methods is implemented.

[0025] An embodiment of the present application provides a computer-readable storage medium on which a computer program is stored, characterized in that when the computer program is executed by a processor, the steps of any of the above-mentioned cell processing methods are implemented.

[0026] The present application embodiment provides a cell processing system, including:

[0027] The first communication node is configured to send a neighboring cell list; wherein the neighboring cell list includes:

[0028] A neighbor cell list connected to the first core network and at least one neighbor cell list connected only to the second core network;

[0029] Alternatively, a neighboring cell list connected only to the first core network, a neighboring cell list connected to both the first core network and the second core network, and at least one neighboring cell list connected only to the second core network;

[0030] The second communication node is configured to receive a neighboring cell list; wherein the neighboring cell list includes:

[0031] A neighbor cell list connected to the first core network and at least one neighbor cell list connected only to the second core network;

[0032] Alternatively, a neighboring cell list connected only to the first core network, a neighboring cell list connected to both the first core network and the second core network, and at least one neighboring cell list connected only to the second core network;

[0033] When the second core network is not supported, the neighboring cells in the neighboring cell list connected to the first core network are processed; or the communication node processes the neighboring cells in the neighboring cell list connected only to the first core network and the neighboring cell list connected to both the first core network and the second core network;

[0034] Alternatively, when the second core network is supported, all neighbor cells in the neighbor cell list are processed.

[0035] The embodiment of the present application includes: the first communication node sends a neighbor list; wherein the neighbor list includes: a neighbor list connected to the first core network and at least one neighbor list only connected to the second core network; or, a neighbor list only connected to the first core network, a neighbor list connected to both the first core network and the second core network, and at least one neighbor list only connected to the second core network. In the embodiment of the present invention, the first communication node independently configures a neighbor list for neighboring cells connected only to the second core network by sending a neighbor list, that is, independently configuring a neighbor list for neighboring cells connected only to the second core network, so that the second communication node that does not support the second core network does not need to process the neighbor list connected only to the second core network, but only needs to process the neighbor list connected to the first core network, thereby preventing cell processing failure and improving cell processing efficiency.

[0036] The embodiments of the present application provide a cell reselection method, device and system, which can reduce the number of communication nodes that simultaneously issue mobility instructions, thereby reducing instantaneous signaling storms.

[0037] The present application provides a cell reselection method, including:

[0038] Communication node receiving randomized hysteresis threshold;

[0039] The communication node generates a random number based on the randomized hysteresis threshold;

[0040] The communication node reselects the cell based on the random number.

[0041] The present application provides a cell reselection method, including:

[0042] The communication node sends a randomized hysteresis threshold.

[0043] An embodiment of the present application provides a communication node, including:

[0044] A receiving module, used for receiving a randomized hysteresis threshold;

[0045] A generating module, used for generating random numbers according to a randomized hysteresis threshold;

[0046] The reselection module is used to reselect a cell according to a random number.

[0047] An embodiment of the present application provides a communication node, including:

[0048] The sending module is used to send the randomized hysteresis threshold.

[0049] An embodiment of the present application provides a communication node, including a processor and a computer-readable storage medium, wherein the computer-readable storage medium stores instructions, and when the instructions are executed by the processor, any of the above-mentioned cell reselection methods is implemented.

[0050] An embodiment of the present application provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of any of the above-mentioned cell reselection methods are implemented.

[0051] The embodiment of the present application provides a cell reselection system, including:

[0052] A first communication node, configured to send a randomized hysteresis threshold;

[0053] The second communication node is used to receive a randomized hysteresis threshold; generate a random number according to the randomized hysteresis threshold; and perform cell reselection according to the random number.

[0054] The embodiment of the present application includes: a communication node receives a randomized hysteresis threshold; the communication node generates a random number according to the randomized hysteresis threshold; the communication node reselects a cell according to the random number. The embodiment of the present application reselects a cell according to a random number. Since the random number is random, the specific values ​​of different communication nodes will naturally be different. When a large number of UEs (such as UEs on a train) are concentrated together and move at the same time, since the hysteresis thresholds of all UEs are different, the triggering conditions of cell reselection are also different. Therefore, the number of communication nodes that simultaneously issue mobility instructions for cell reselection is reduced, thereby reducing the instantaneous signaling storm.

[0055] The embodiments of the present application provide a cell reselection method and a communication node, which can improve service quality.

[0056] The embodiment of the present application provides a cell reselection method, including:

[0057] The communication node determines the cell equivalence quality interval according to the cell quality equivalence threshold;

[0058] The communication node takes the set consisting of neighboring cells whose qualities are within the cell equivalence quality interval and the current serving cell as candidate cells for cell preference reselection.

[0059] The present application provides a cell reselection method, including:

[0060] The communication node sends at least one of the following: a cell quality equivalence threshold, a cell reselection tendency indication.

[0061] An embodiment of the present application provides a communication node, including:

[0062] A determination module, used to determine a cell equivalence quality interval according to a cell quality equivalence threshold;

[0063] The reselection module is used to take a set of neighboring cells whose quality is within the cell equivalence quality interval and the current serving cell as candidate cells for cell preference reselection.

[0064] An embodiment of the present application provides a communication node, including:

[0065] The sending module is used to send at least one of the following: a cell quality equivalence threshold and a cell reselection tendency indication.

[0066] An embodiment of the present application provides a communication node, including a processor and a computer-readable storage medium, wherein the computer-readable storage medium stores instructions, and is characterized in that when the instructions are executed by the processor, any of the above-mentioned cell reselection methods is implemented.

[0067] An embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of any of the above-mentioned cell reselection methods.

[0068] The embodiment of the present application provides a cell reselection system, including:

[0069] A first communication node, configured to send at least one of the following: a cell quality equivalence threshold, a cell reselection tendency indication;

[0070] The second communication node is used to determine the cell equivalence quality interval according to the cell quality equivalence threshold; and to perform cell preference reselection using a set of neighboring cells whose quality is within the cell equivalence quality interval and a current serving cell as candidate cells.

[0071] The embodiment of the present application includes: the communication node determines the cell equivalence quality interval according to the cell quality equivalence threshold; the communication node uses the set of neighboring cells and the current service cell whose quality is within the cell equivalence quality interval as candidate cells for cell preference reselection. The embodiment of the present application performs cell preference reselection when the neighboring cell quality is within the cell equivalence quality interval, thereby improving the service quality.

[0072] The embodiments of the present application provide a method, device and system for energy-saving state conversion, which can ensure that the UE saves energy while receiving at least one of the following: downlink data and downlink signaling.

[0073] The present application provides an energy-saving state conversion method, including:

[0074] The base station sends first indication information for releasing the radio resource control connection to the terminal, and sends second indication information for entering the energy-saving state to the core network element.

[0075] The present application provides an energy-saving state conversion method, including:

[0076] The core network element receives the indication information of entering the energy-saving state;

[0077] Maintain the connection between the base station corresponding to the terminal and the core network element, and the connection between the base station corresponding to the terminal and the core network element enters an energy-saving state;

[0078] When the connection between the base station corresponding to the terminal and the core network element is in an energy-saving state, the base station may send at least one of the following to the core network element at any time: uplink data, uplink signaling;

[0079] The core network element sends at least one of the following to the base station within the paging time window and / or the predefined data sending window: downlink data and downlink signaling.

[0080] An embodiment of the present application provides a base station, including:

[0081] The sending module is used to send first indication information for releasing the radio resource control connection to the terminal, and send second indication information for entering the energy-saving state to the core network element.

[0082] The embodiment of the present application provides a core network element, including:

[0083] A receiving module, used for receiving indication information for entering an energy-saving state;

[0084] Maintain the connection between the base station corresponding to the terminal and the core network element, and the connection between the base station corresponding to the terminal and the core network element enters an energy-saving state;

[0085] When the connection between the base station corresponding to the terminal and the core network element enters the energy-saving state, the base station may send at least one of the following to the core network element at any time: uplink data, uplink signaling;

[0086] The core network element sends at least one of the following to the base station within the paging time window and / or the predefined data sending window: downlink data and downlink signaling.

[0087] An embodiment of the present application provides a base station, including a processor and a computer-readable storage medium, wherein the computer-readable storage medium stores instructions, and when the instructions are executed by the processor, any of the above energy-saving state conversion methods is implemented.

[0088] An embodiment of the present application provides a core network element, including a processor and a computer-readable storage medium, wherein the computer-readable storage medium stores instructions, and is characterized in that when the instructions are executed by the processor, any of the above-mentioned energy-saving state conversion methods is implemented.

[0089] An embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the steps of any one of the above energy-saving state conversion methods are implemented.

[0090] An embodiment of the present application provides an energy-saving state conversion system, including: any of the above-mentioned base stations and any of the above-mentioned core network elements.

[0091] The embodiment of the present application includes: the base station sends a first indication message of releasing the radio resource control connection to the terminal, and sends a second indication message of entering the energy-saving state to the core network element; the core network element receives the second indication message of entering the energy-saving state; the connection between the base station corresponding to the terminal and the core network element is maintained, and the connection between the base station corresponding to the terminal and the core network element enters the energy-saving state; when the connection between the base station corresponding to the terminal and the core network element is in the energy-saving state, the base station can send at least one of the following to the core network element at any time: uplink data, uplink signaling; the core network element sends at least one of the following to the base station within the paging time window and / or the predefined data sending window: downlink data, downlink signaling. The embodiment of the present application achieves energy saving of the terminal while being able to receive at least one of the following: downlink data, downlink signaling by maintaining the connection between the base station corresponding to the terminal and the core network element, and the connection between the base station corresponding to the terminal and the core network element enters the energy-saving state. When the connection between the base station corresponding to the terminal and the core network element is in the energy-saving state, the core network element sends at least one of the following to the base station within the paging time window and / or the predefined data sending window: downlink data, downlink signaling. BRIEF DESCRIPTION OF THE DRAWINGS

[0092] The accompanying drawings are used to provide further understanding of the technical solutions of the embodiments of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solutions of the embodiments of the present application and do not constitute a limitation on the technical solutions of the embodiments of the present application.

[0093] Figure 1 A schematic diagram of a base station configuring a neighbor list for a user equipment (UE) in the related art;

[0094] Figure 2 This is a flowchart of a cell processing method according to an embodiment of the present application;

[0095] Figure 3 Schematic diagram of a first communication node configuring a neighbor list for a second communication node in an embodiment of the present application Figure 1 ;

[0096] Figure 4 Schematic diagram of a first communication node configuring a neighbor list for a second communication node in an embodiment of the present application Figure 2 ;

[0097] Figure 5 A flowchart of another cell processing method according to an embodiment of the present application;

[0098] Figure 6 This is a schematic diagram of the structure of the first communication node in an embodiment of the present application;

[0099] Figure 7 This is a schematic diagram of the structure of a communication node according to an embodiment of the present application;

[0100] Figure 8 This is a schematic diagram of the structure of the cell processing system according to an embodiment of the present application;

[0101] Fig. 9 A schematic diagram of a related technology network side configuring a hysteresis threshold for a UE;

[0102] Fig.10 This is a flowchart of a cell reselection method according to an embodiment of the present application;

[0103] Fig.11 A flowchart of another cell reselection method according to an embodiment of the present application;

[0104] Fig.12 A schematic diagram of the network side configuring the original hysteresis threshold and the randomized hysteresis threshold for the UE in an embodiment of the present application;

[0105] Fig.13 This is a schematic diagram of the structure of another communication node according to an embodiment of the present application;

[0106] Fig.14 This is a schematic diagram of the structure of another communication node according to an embodiment of the present application;

[0107] Fig.15 A schematic diagram of the structure of a cell reselection system according to an embodiment of the present application;

[0108] Fig.16 A flowchart of another cell reselection method according to an embodiment of the present application;

[0109] Fig.17 A flowchart of another cell reselection method according to an embodiment of the present application;

[0110] Fig.18 A schematic diagram of a UE performing cell reselection based on a cell quality equivalence threshold and a cell reselection tendency indication configured by a base station in an embodiment of the present application;

[0111] Fig.19 This is a schematic diagram of the structure of another communication node in an embodiment of the present application;

[0112] Fig. 20 This is a schematic diagram of the structure of another communication node in an embodiment of the present application;

[0113] Fig.21 A schematic diagram of the structure of another cell reselection system according to an embodiment of the present application;

[0114] Fig. 22 This is a flow chart of the energy-saving state conversion method according to an embodiment of the present application;

[0115] Fig.23 This is a flow chart of another energy-saving state conversion method according to an embodiment of the present application;

[0116] Fig.24 This is a schematic diagram of the structure of a base station according to an embodiment of the present application;

[0117] Fig.25 This is a schematic diagram of the structure of the core network element of the embodiment of the present application;

[0118] Fig.26 This is a schematic diagram of the structural composition of the energy-saving state conversion system according to an embodiment of the present application. DETAILED DESCRIPTION

[0119] In order to make the purpose, technical solution and advantages of the embodiments of the present application more clear, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that, in the absence of conflict, the above-mentioned embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

[0120] The steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions. Also, although a logical sequence is shown in the flowchart, in some cases, the steps shown or described can be performed in a sequence different from that shown here.

[0121] Currently, if Figure 1 As shown, the base station 11 only configures a neighboring cell list for the user equipment (UE, User Equipment) 12. When the UE12 measures the neighboring cells, all the neighboring cells in the neighboring cell list are used as target neighboring cells to be measured; when the UE12 performs cell reselection, all the neighboring cells in the neighboring cell list are used as candidate cells.

[0122] In the above method, each neighboring cell measurement or cell reselection requires all neighboring cells in the neighboring cell list to be used as target neighboring cells to be measured or candidate cells for cell reselection. Since some neighboring cells in the neighboring cell list may be connected only to EPC, some neighboring cells may be connected to both EPC and 5GC, and some neighboring cells may be connected only to 5GC, and the UE may or may not support 5GC, therefore, if a UE that does not support 5GC selects a neighboring cell connected to 5GC during neighboring cell measurement or cell reselection, inaccurate neighboring cell measurement results or cell reselection failure may occur, and neighboring cell measurement or cell reselection needs to be performed again, resulting in low efficiency of neighboring cell measurement or cell reselection.

[0123] See also Figure 2 , an embodiment of the present application proposes a cell processing method, comprising:

[0124] Step 200: The first communication node sends a neighbor cell list.

[0125] In the above-mentioned embodiment of the present application, the first communication node may send the neighbor list by sending a broadcast message, that is, the broadcast message includes the neighbor list.

[0126] The neighbor list includes:

[0127] A neighbor cell list connected to the first core network and at least one neighbor cell list connected only to the second core network;

[0128] Alternatively, a neighbor cell list connected only to the first core network, a neighbor cell list connected to both the first core network and the second core network, and at least one neighbor cell list connected only to the second core network.

[0129] For example, Figure 3 As shown, the first communication node 31 configures a neighboring cell list connected to the first core network and at least one neighboring cell list connected only to the second core network for the second communication node 32;

[0130] like Figure 4 As shown, the first communication node 31 configures a neighboring cell list connected only to the first core network, a neighboring cell list connected to both the first core network and the second core network, and at least one neighboring cell list connected only to the second core network for the second communication node 32.

[0131] Among them, the terminal that supports the second core network also supports the first core network; the terminal that supports the first core network does not necessarily support the second core network. For example, the first core network can be EPC, and the second core network can be 5GC.

[0132] Among them, the neighbor cell list connected to the first core network or the neighbor cell list only connected to the first core network can be carried in the field that originally carried the neighbor cell list in the relevant broadcast message, and at least one neighbor cell list only connected to the second core network and the neighbor cell list connected to both the first core network and the second core network can be carried in a newly added field or an idle field in the broadcast message or an idle bit in the field that originally carried the neighbor cell list.

[0133] The neighbor cell list connected to the first core network includes: neighbor cell information of at least one neighbor cell connected only to the first core network, and neighbor cell information of at least one neighbor cell connected to both the first core network and the second core network.

[0134] The neighbor cell list connected only to the first core network includes: neighbor cell information of at least one neighbor cell connected only to the first core network.

[0135] The neighbor cell list connected only to the second core network includes: neighbor cell information of at least one neighbor cell connected only to the second core network.

[0136] The neighbor cell list simultaneously connected to the first core network and the second core network includes: neighbor cell information of at least one neighbor cell simultaneously connected to the first core network and the second core network.

[0137] That is to say, a neighbor cell list is independently configured for the neighbor cells that are only connected to the second core network. In this way, for the second communication node that does not support the second core network, there is no need to process the neighbor cells in the neighbor cell list that are only connected to the second core network, but only needs to process the neighbor cell list that is connected to the first core network, thereby avoiding cell processing failure and improving cell processing efficiency.

[0138] The above-mentioned neighbor cell list includes at least one of the following: a same-frequency neighbor cell list and a different-frequency neighbor cell list.

[0139] The neighboring cell list includes neighboring cell information of at least one neighboring cell, and the neighboring cell information includes at least one of the following:

[0140] Frequency, cell identifier (i.e., physical cell ID), minimum required RX level in the cell for the second communication node to reside, minimum required quality level in the cell, cell reselection bias (Q offset ), frequency offset for cell reselection (Q OffsetFreq ), the maximum transmission power of the second communication node allowed by the cell (P Max ), the maximum transmission power of the second communication node allowed by the frequency band (additional P Max ), neighborhood characteristics.

[0141] The neighboring cell characteristics include at least one of the following:

[0142] The cell is connected to the first core network, the cell is connected to the second core network, support information of the second core network to which the cell is connected for the user plane optimization solution, support information of the second core network to which the cell is connected for the energy-saving state of the second communication node, the weight of cell selection, other optimization features of the second core network to which the cell is connected and / or the core network type.

[0143] The support information of the second core network connected to the cell for the user plane optimization solution includes any one of the following: the second core network connected to the cell supports the user plane optimization solution, and the second core network connected to the cell does not support the user plane optimization solution;

[0144] The support information of the second core network connected to the cell for the energy-saving state of the second communication node includes any one of the following: the second core network connected to the cell supports the energy-saving state of the second communication node, and the second core network connected to the cell does not support the energy-saving state of the second communication node.

[0145] Among them, the second core network supports the user plane optimization solution, which means that after the UE enters the IDLE mode context suspension state, the UE connection can be quickly restored by restoring the UE context when the next service is established.

[0146] Among them, the energy-saving state includes the following characteristics:

[0147] When the second communication node enters at least one of the following: an extended discontinuous reception (eDRX) state, a low power mode (PSM) state, or a deep sleep mode (DSM) state, the connection between the first communication node corresponding to the second communication node and the core network element is maintained, and the connection between the first communication node corresponding to the second communication node and the core network element enters an energy-saving state;

[0148] When the connection between the first communication node corresponding to the second communication node and the core network element is in an energy-saving state, the first communication node may send at least one of the following to the core network element at any time: uplink data, uplink signaling;

[0149] The core network element sends at least one of the following to the first communication node within the paging time window and / or the predefined data sending window: downlink data, downlink signaling.

[0150] Alternatively, the energy-saving state includes the following characteristics:

[0151] The first communication node receives at least one of the following: eDRX configuration information, PSM configuration information, and DSM configuration information;

[0152] When the first communication node receives at least one of the following: downlink data, downlink signaling outside the paging time window or the predefined data transmission window according to at least one of the following: eDRX configuration information, PSM configuration information, and DSM configuration information, the first communication node buffers at least one of the following: downlink data, downlink signaling;

[0153] The first communication node sends a paging message to the second communication node within the paging time window or the predefined data sending window, and after the second communication node enters the radio resource control connection state or the early data transmission state, sends at least one of the following cached items to the second communication node: downlink data, downlink signaling.

[0154] When the first communication node receives at least one of the following: downlink data, downlink signaling within the paging time window or the predefined data sending window according to at least one of the following: eDRX configuration information, PSM configuration information, and DSM configuration information, the first communication node sends a paging message to the second communication node, and after the second communication node enters the radio resource control connection state or the early data transmission state, the first communication node sends at least one of the following to the second communication node: the downlink data, the downlink signaling.

[0155] Among them, the core network network element can send PSM configuration information or eDRX configuration information or DSM configuration information to the first communication node through dedicated signaling.

[0156] The dedicated signaling includes any of the following:

[0157] Initial context establishment request (INITIAL CONTEXT SETUP REQUEST), UE context release request (UECONTEXT RELEASE REQUEST), UE context modification request (UE CONTEXT MODIFICATION REQUEST), UE context suspension request (UE CONTEXT SUSPEND REQUEST), UE context recovery request (UE CONTEXT RESUMERESPONSE), and messages corresponding to the Ng port.

[0158] The PSM configuration information includes at least one of the following: a PSM activation timer and a PSM duration.

[0159] The DSM configuration information includes at least one of the following: a DSM activation timer and a DSM duration.

[0160] Among them, the PSM duration or the DSM duration can be implemented by using a periodic Tracking Area Update (TAU, Tracking Area Update) / Routing Area Update (RAU, Route Area Update) timer (such as T3412, T3412 extended value, T3312, T3312 extended value).

[0161] The eDRX configuration information includes at least one of the following: an eDRX cycle and a PTW length.

[0162] In the above-mentioned embodiment of the present application, one neighbor cell list may be configured for all neighbor cells that are only connected to the second core network, or two or more neighbor cell lists may be configured for all neighbor cells that are only connected to the second core network according to the characteristics of the neighbor cells.

[0163] For example, two neighbor cell lists, namely, neighbor cell list 1 and neighbor cell list 2, can be configured for all neighbor cells that are only connected to the second core network; wherein the neighbor cell characteristics of the neighbor cells in neighbor cell list 1 are that the connected second core network does not support the user plane optimization solution, and the neighbor cell characteristics of the neighbor cells in neighbor cell list 2 are that the connected second core network supports the user plane optimization solution.

[0164] See also Figure 5 Another embodiment of the present application provides a cell processing method, including:

[0165] Step 500: The communication node receives a neighbor list.

[0166] In the above-mentioned embodiment of the present application, the communication node can receive a broadcast message, and the broadcast message includes a neighbor list.

[0167] The neighbor list includes:

[0168] A neighbor cell list connected to the first core network and at least one neighbor cell list connected only to the second core network;

[0169] Alternatively, a neighbor cell list connected only to the first core network, a neighbor cell list connected to both the first core network and the second core network, and at least one neighbor cell list connected only to the second core network.

[0170] The neighbor cell list connected to the first core network includes: neighbor cell information of at least one neighbor cell connected only to the first core network, and neighbor cell information of at least one neighbor cell connected to both the first core network and the second core network.

[0171] The neighbor cell list connected only to the first core network includes: neighbor cell information of at least one neighbor cell connected only to the first core network.

[0172] The neighbor cell list connected only to the second core network includes: neighbor cell information of at least one neighbor cell connected only to the second core network.

[0173] The neighbor cell list simultaneously connected to the first core network and the second core network includes: neighbor cell information of at least one neighbor cell simultaneously connected to the first core network and the second core network.

[0174] That is to say, a neighbor cell list is independently configured for the neighbor cells that are only connected to the second core network. In this way, for communication nodes that do not support the second core network, there is no need to process the neighbor cells in the neighbor cell list that are only connected to the second core network, but only needs to process the neighbor cell list that is connected to the first core network, thereby avoiding cell processing failure and improving cell processing efficiency.

[0175] The above-mentioned neighbor cell list includes at least one of the following: a same-frequency neighbor cell list and a different-frequency neighbor cell list.

[0176] The neighboring cell list includes neighboring cell information of at least one neighboring cell, and the neighboring cell information includes at least one of the following:

[0177] Frequency, cell identifier (i.e., physical cell ID), minimum required RX level in the cell, minimum required quality level in the cell, cell reselection bias, offset ), frequency offset for cell reselection (Q OffsetFreq ), the maximum transmission power of the communication node allowed by the cell (P Max ), the maximum transmission power of the communication node allowed by the frequency band (additional P Max ), community characteristics.

[0178] The cell characteristics include at least one of the following:

[0179] The cell is connected to the first core network, the cell is connected to the second core network, support information of the second core network to which the cell is connected for the user plane optimization scheme, support information of the second core network to which the cell is connected for the energy-saving state of the communication node, the weight of cell selection, other optimization features of the second core network to which the cell is connected and / or the core network type.

[0180] The support information of the second core network connected to the cell for the user plane optimization solution includes any one of the following: the second core network connected to the cell supports the user plane optimization solution, and the second core network connected to the cell does not support the user plane optimization solution;

[0181] The support information of the second core network connected to the cell for the energy-saving state of the communication node includes any one of the following: the second core network connected to the cell supports the energy-saving state of the communication node, and the second core network connected to the cell does not support the energy-saving state of the communication node.

[0182] Among them, the second core network supports the user plane optimization solution, which means that after the UE enters the IDLE mode context suspension state, the UE connection can be quickly restored by restoring the UE context when the next service is established.

[0183] In the above-mentioned embodiment of the present application, one neighbor cell list may be configured for all neighbor cells that are only connected to the second core network, or two or more neighbor cell lists may be configured for all neighbor cells that are only connected to the second core network according to the characteristics of the neighbor cells.

[0184] For example, two neighbor cell lists, namely, neighbor cell list 1 and neighbor cell list 2, can be configured for all neighbor cells that are only connected to the second core network; wherein the neighbor cell characteristics of the neighbor cells in neighbor cell list 1 are that the connected second core network does not support the user plane optimization solution, and the neighbor cell characteristics of the neighbor cells in neighbor cell list 2 are that the connected second core network supports the user plane optimization solution.

[0185] Step 501: When the communication node does not support the second core network, the communication node processes the neighboring cells in the neighboring cell list connected to the first core network, or the communication node processes the neighboring cells in the neighboring cell list connected only to the first core network and the neighboring cell list connected to both the first core network and the second core network; or, when the communication node supports the second core network, the communication node processes the neighboring cells in all neighboring cell lists.

[0186] In the above-mentioned embodiment of the present application, a communication node that does not support the second core network can only obtain a neighbor list connected to the first core network or a neighbor list connected only to the first core network from the field that originally carried the neighbor list in the broadcast message. For at least one of the newly added fields or idle fields in the broadcast message or the idle bits in the field that originally carried the neighbor list, a neighbor list connected only to the second core network and a neighbor list connected to both the first core network and the second core network cannot be obtained. Therefore, a communication node that does not support the second core network can only obtain a neighbor list connected to the first core network or a neighbor list connected only to the first core network from the broadcast message.

[0187] The communication node supporting the second core network can obtain all neighbor cell lists from the broadcast message.

[0188] In the above-mentioned embodiment of the present application, processing the neighboring cells in all neighboring cell lists includes:

[0189] The communication node takes the union of all neighboring cells in the neighboring cell list as the target neighboring cells to be measured for neighboring cell measurement; specifically, the communication node takes the union of the neighboring cells in the neighboring cell list connected to the first core network and at least one neighboring cell in the neighboring cell list that is only connected to the second core network as the target neighboring cell to be measured for neighboring cell measurement, or takes the union of the neighboring cells in the neighboring cell list that is only connected to the first core network, the neighboring cells in the neighboring cell list that are simultaneously connected to the first core network and the second core network, and at least one neighboring cell in the neighboring cell list that is only connected to the second core network as the target neighboring cell to be measured for neighboring cell measurement.

[0190] Alternatively, the communication node uses the union of all neighboring cells in the neighboring cell list as candidate cells for cell reselection; specifically, the communication node uses the union of neighboring cells in the neighboring cell list connected to the first core network and at least one neighboring cell in the neighboring cell list that is only connected to the second core network as candidate cells for cell reselection, or uses the union of neighboring cells in the neighboring cell list that is only connected to the first core network, neighboring cells in the neighboring cell list that are simultaneously connected to the first core network and the second core network, and at least one neighboring cell in the neighboring cell list that is only connected to the second core network as candidate cells for cell reselection.

[0191] In the above-mentioned embodiment of the present application, processing the neighboring cell in the neighboring cell list connected to the first core network includes:

[0192] The communication node performs neighbor cell measurement by taking the union of neighbor cells in the neighbor cell list connected to the first core network as the target neighbor cells to be measured;

[0193] Alternatively, the communication node uses the union of neighbor cells in the neighbor cell list connected to the first core network as candidate cells for cell reselection.

[0194] In the above-mentioned embodiment of the present application, processing the neighboring cells in the neighboring cell list connected only to the first core network and the neighboring cell list connected to both the first core network and the second core network includes:

[0195] The communication node performs neighbor cell measurement by taking a union of neighbor cells in a neighbor cell list connected only to the first core network and a neighbor cell list connected to both the first core network and the second core network as target neighbor cells to be measured;

[0196] Alternatively, the communication node uses the neighboring cell list connected only to the first core network and the union of the neighboring cells in the neighboring cell list connected to both the first core network and the second core network as candidate cells for cell reselection.

[0197] In the above-mentioned embodiment of the present application, the second communication node that does not support the second core network does not need to process the neighboring cells in the neighboring cell list that is only connected to the second core network, but only needs to process the neighboring cell list connected to the first core network, thereby avoiding cell processing failure and improving cell processing efficiency.

[0198] It should be noted that the above neighbor list may also be equivalently replaced by a neighbor set.

[0199] Optionally, the communication node processes the neighboring cell including:

[0200] The communication node determines the cell equivalence quality interval according to the cell quality equivalence threshold;

[0201] When the communication node does not support the second core network, the communication node will connect to the neighboring cell list of the first core network, or the neighboring cell list of only the first core network and the neighboring cell list of both the first core network and the second core network, and the cell characteristics of the neighboring cells with quality within the cell equivalence quality interval and the current serving cell will perform cell preference reselection based on the cell characteristics and the capability matching of the communication node;

[0202] Alternatively, when the communication node supports the second core network, the communication node performs cell preference reselection based on matching the cell characteristics with the capabilities of the communication node and the current serving cell in all neighbor cell lists whose quality is within the cell equivalence quality interval.

[0203] The capability of the communication node refers to whether the communication node supports the second core network. For example, when the cell characteristic is that the cell is connected to the first core network or the second core network, the communication node supporting the second core network preferentially selects the cell connected to the second core network as the serving cell.

[0204] The first communication node, the second communication node and Figure 5 The communication node shown can be any communication node. For example, the first communication node is a base station, such as an NB-IoT base station, an eMTC base station, etc., and the second communication node is a UE, etc.

[0205] See also Figure 6 Another embodiment of the present application provides a communication node, including:

[0206] The sending module 601 is used to send a neighboring cell list; wherein the neighboring cell list includes:

[0207] A neighbor cell list connected to the first core network and at least one neighbor cell list connected only to the second core network;

[0208] Alternatively, a neighbor cell list connected only to the first core network, a neighbor cell list connected to both the first core network and the second core network, and at least one neighbor cell list connected only to the second core network.

[0209] Optionally, the sending module 601 is specifically used for:

[0210] Send a broadcast message, which includes a neighbor list.

[0211] Optionally, the neighbor cell list includes at least one of the following: a same-frequency neighbor cell list and a different-frequency neighbor cell list.

[0212] Optionally, the neighbor cell list connected to the first core network includes: neighbor cell information of at least one neighbor cell connected only to the first core network, and neighbor cell information of at least one neighbor cell connected to both the first core network and the second core network.

[0213] Optionally, the neighboring area list includes neighboring area information of at least one neighboring area, and the neighboring area information includes at least one of the following:

[0214] Frequency point, cell identifier, minimum reception level threshold required for the second communication node to reside in the cell, minimum quality level threshold required for the second communication node to reside in the cell, reselection bias, frequency bias for cell reselection, maximum transmission power of the second communication node allowed in the cell, maximum transmission power of the second communication node allowed by the frequency band, and cell characteristics.

[0215] Optionally, the cell characteristics include at least one of the following:

[0216] The cell is connected to the first core network, the cell is connected to the second core network, the support information of the second core network connected to the cell for the user plane optimization plan, the support information of the second core network connected to the cell for the energy-saving state of the second communication node, and the weight of the cell selection.

[0217] Optionally, the energy-saving state includes the following features:

[0218] When the second communication node enters at least one of the following: an eDRX state, a PSM state, or a DSM state, the connection between the first communication node corresponding to the second communication node and the core network element is maintained, and the connection between the first communication node corresponding to the second communication node and the core network element enters an energy-saving state;

[0219] When the connection between the first communication node corresponding to the second communication node and the core network element is in an energy-saving state, the first communication node may send at least one of the following to the core network element at any time: uplink data, uplink signaling;

[0220] The core network element sends at least one of the following to the first communication node within the paging time window and / or the predefined data sending window: downlink data, downlink signaling.

[0221] Optionally, the energy-saving state includes the following features:

[0222] The first communication node receives at least one of the following: eDRX configuration information, PSM configuration information, and DSM configuration information;

[0223] When the first communication node receives at least one of the following: downlink data, downlink signaling outside the paging time window or the predefined data transmission window according to at least one of the following: eDRX configuration information, PSM configuration information, and DSM configuration information, the first communication node buffers at least one of the following: downlink data, downlink signaling;

[0224] The first communication node sends a paging message to the second communication node within the paging time window or the predefined data sending window, and after the second communication node enters the radio resource control connection state or the early data transmission state, sends at least one of the following cached items to the second communication node: downlink data, downlink signaling.

[0225] Optionally, the energy-saving state includes the following features:

[0226] The first communication node receives at least one of the following: eDRX configuration information, PSM configuration information, and DSM configuration information;

[0227] When the first communication node receives at least one of the following: downlink data, downlink signaling within the paging time window or the predefined data sending window according to at least one of the following: eDRX configuration information, PSM configuration information, and DSM configuration information, the first communication node sends a paging message to the second communication node, and after the second communication node enters the radio resource control connection state or the early data transmission state, the first communication node sends at least one of the following to the second communication node: downlink data, downlink signaling.

[0228] After receiving the paging message, the terminal initiates a PRACH process, thereby entering an RRC connected state or an EDT state.

[0229] See also Figure 7 Another embodiment of the present application provides a communication node, including:

[0230] The receiving module 701 is configured to receive a neighboring cell list, wherein the neighboring cell list includes:

[0231] A neighbor cell list connected to the first core network and at least one neighbor cell list connected only to the second core network;

[0232] Alternatively, a neighboring cell list connected only to the first core network, a neighboring cell list connected to both the first core network and the second core network, and at least one neighboring cell list connected only to the second core network;

[0233] The processing module 702 is used to process the neighboring cells in the neighboring cell list connected to the first core network, the neighboring cell list connected only to the second core network, and the neighboring cell list connected to both the first core network and the second core network when the second core network is not supported;

[0234] Alternatively, when the second core network is supported, all neighbor cells in the neighbor cell list are processed.

[0235] Optionally, the receiving module 701 is specifically used for:

[0236] A broadcast message is received, where the broadcast message includes a neighbor list.

[0237] Optionally, the processing module 702 is specifically configured to:

[0238] The union of all neighboring areas in the neighboring area list is used as the target neighboring area to be measured to perform neighboring area measurement;

[0239] Alternatively, the union of all neighboring cells in the neighboring cell list is used as a candidate cell for cell reselection.

[0240] Optionally, the processing module 702 is specifically configured to:

[0241] Perform neighbor cell measurement using the neighbor cell list connected to the first core network, or the union of the neighbor cell list connected only to the second core network and the neighbor cell list connected to both the first core network and the second core network as the target neighbor cell to be measured;

[0242] Alternatively, the neighbor cell list connected to the first core network, or the neighbor cell list connected only to the second core network and the union of the neighbor cells in the neighbor cell list connected to both the first core network and the second core network are used as candidate cells for cell reselection.

[0243] Optionally, the neighboring area list includes neighboring area information of at least one neighboring area, and the neighboring area information includes at least one of the following:

[0244] Frequency point, cell identifier, minimum reception level threshold required for communication nodes to reside in the cell, minimum quality level threshold required for communication nodes to reside in the cell, cell reselection bias, frequency bias for cell reselection, maximum transmission power of communication nodes allowed in the cell, maximum transmission power of communication nodes allowed by the frequency band, and cell characteristics.

[0245] Optionally, the processing module 702 is further configured to:

[0246] Determining a cell equivalence quality interval according to a cell quality equivalence threshold;

[0247] When the second core network is not supported, the cell characteristics of the neighboring cells in the neighboring cell list connected to the first core network, or the neighboring cell list connected only to the second core network and the neighboring cell list connected to both the first core network and the second core network, whose quality is within the cell equivalence quality interval, and the current serving cell are used to perform cell preference reselection based on the cell characteristics and the capability matching of the communication node;

[0248] Alternatively, when the second core network is supported, the cell characteristics of all neighboring cells in the neighboring cell list whose quality is within the cell equivalence quality interval and the current serving cell are matched with the communication node to perform cell preference reselection.

[0249] Another embodiment of the present application provides a communication node, including a processor and a computer-readable storage medium, wherein the computer-readable storage medium stores instructions, and when the instructions are executed by the processor, any of the above-mentioned cell processing methods is implemented.

[0250] Another embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program implements the steps of any of the above-mentioned cell processing methods when executed by a processor.

[0251] Among them, the computer-readable storage medium includes at least one of the following: flash memory, hard disk, multimedia card, card-type memory (for example, secure digital card (SD card) or data register (DX, Data Register) memory, etc.), random access memory (RAM, Random Access Memory), static random access memory (SRAM, Static Random Access Memory), read-only memory (ROM, Read Only Memory), electrically erasable programmable read-only memory (EEPROM, Electrically Erasable Programmable Read-Only Memory), programmable read-only memory (PROM, Programmable Read-Only Memory), magnetic memory, disk, optical disk, etc.

[0252] The processor may be a central processing unit (CPU), a controller, a microcontroller, a microprocessor, or other data processing chips.

[0253] See also Figure 8 Another embodiment of the present application provides a cell processing system, including:

[0254] The first communication node 801 is configured to send a neighbor list; wherein the neighbor list includes:

[0255] A neighbor cell list connected to the first core network and at least one neighbor cell list connected only to the second core network;

[0256] Alternatively, a neighboring cell list connected only to the first core network, a neighboring cell list connected to both the first core network and the second core network, and at least one neighboring cell list connected only to the second core network;

[0257] The second communication node 802 is configured to receive a neighboring cell list; wherein the neighboring cell list includes:

[0258] A neighbor cell list connected to the first core network and at least one neighbor cell list connected only to the second core network;

[0259] Alternatively, a neighboring cell list connected only to the first core network, a neighboring cell list connected to both the first core network and the second core network, and at least one neighboring cell list connected only to the second core network;

[0260] When the second core network is not supported, the neighboring cells in the neighboring cell list connected to the first core network are processed; or the neighboring cells in the neighboring cell list connected only to the first core network and the neighboring cell list connected to both the first core network and the second core network are processed;

[0261] Alternatively, when the second core network is supported, all neighbor cells in the neighbor cell list are processed.

[0262] Optionally, the second communication node is further used for:

[0263] Determining a cell equivalence quality interval according to a cell quality equivalence threshold;

[0264] When the second core network is not supported, the neighboring cell list connected to the first core network, or the neighboring cell list connected only to the first core network and the neighboring cell list connected to both the first core network and the second core network, the neighboring cell with quality within the cell equivalence quality interval and the current serving cell are subjected to cell preference reselection based on the cell characteristics and the capability matching of the communication node;

[0265] Alternatively, when the second core network is supported, cell preference reselection is performed for all neighbor cells in the neighbor cell list whose quality is within the cell equivalence quality interval and the current serving cell based on cell characteristics and capability matching of the communication node.

[0266] Currently, if Fig. 9 As shown, the R rule for cell reselection is the network side (such as Fig. 9 The base station 91 in the configuration of the hysteresis threshold Q of the R rule for UE92 hyst (hysteresis value for ranking criteria), UE performs cell reselection based on the hysteresis threshold, that is:

[0267] According to the formula R s =Q meas,s +Q hyst -Q offset1 +Q offset2 Calculate the quality of the serving cell;

[0268] According to the formula R n =Q meas,n -Q offset3 -Q offset1 +Q offset2 Calculate the quality of the neighborhood;

[0269] When the quality of the neighboring cell is higher than that of the serving cell, the UE performs cell reselection.

[0270] Among them, R s is the quality of the service cell, R n is the quality of the neighboring area, Q meas，s is the measured value of the serving cell, Q meas，n is the measured value of the neighboring area, Q offset1 is the cell reselection bias or frequency offset during the cell reselection process, Q offset2 Q is the penalty reselection bias of the cell when the UE fails to access the cell. offset3 A reselection bias for a carrier that carries a single cell point to multipoint transmission (SC-PTM) service to be received.

[0271] Generally speaking, Q offset1 , Q offset2 and Q offset3 The value can be 0, then according to the formula R s =Q meas,s +Q hyst Calculate the quality of the service cell; according to the formula R n =Q meas,n Calculate the quality of the neighboring cell. That is, when the measured value of the neighboring cell is greater than the sum of the measured value of the serving cell and the hysteresis threshold, it means that the quality of the neighboring cell is higher than that of the serving cell.

[0272] In the above-mentioned cell reselection method, when a large number of concentrated UEs (such as UEs on a train) move at the same time, since the hysteresis thresholds of all UEs are consistent, the triggering conditions for cell reselection are also the same. Therefore, a large number of UEs simultaneously issue mobility instructions for cell reselection, resulting in an instantaneous signaling storm.

[0273] See also Fig.10 Another embodiment of the present application provides a cell reselection method, comprising:

[0274] Step 1000: A communication node receives a randomized hysteresis threshold.

[0275] Optionally, the communication node may also receive an original hysteresis threshold.

[0276] That is, the original hysteresis threshold and the randomized hysteresis threshold can be configured separately or together.

[0277] In the above-mentioned embodiment of the present application, the communication node receives a broadcast message, and the broadcast message includes a randomized hysteresis threshold. Optionally, the broadcast message also includes an original hysteresis threshold.

[0278] Step 1001: A communication node generates a random number according to a randomized hysteresis threshold.

[0279] In the above-mentioned embodiment of the present application, the communication node generates the random number according to any one of the following formulas:

[0280] Q hyst_offset =rand(a,b)Q hyst_R , Q hyst_offset =rand(-aQ hyst_R ,bQ hyst_R );

[0281] Among them, Q hyst_offset is the random number, Q hyst_R is the randomization hysteresis threshold, b is greater than a.

[0282] Among them, rand(a, b) is a random number between a and b.

[0283] In the above, a and b can take any value as long as b is greater than a. For example,

[0284] a is 0, b is 1, that is, according to the formula Q hyst_offset =rand(0,1)Q hyst_R or Q hyst_offset =rand(0,Q hyst_R )Calculate a random number;

[0285] Or, a is -1, b is 0, that is, according to the formula Q hyst_offset =rand(-1,0)Q hyst_R or Q hyst_offset =rand(-1,1)Q hyst_R Calculate random numbers;

[0286] Or, a is -1, b is 1, that is, according to the formula Q hyst_offset =rand(-Q hyst_R ,0) or Q hyst_offset =rand(-Q hyst_R ,Q hyst_R ) calculates a random number.

[0287] That is, the random number can be any of the following: positive, negative, integer, decimal, etc.

[0288] Step 1002: The communication node reselects a cell according to a random number.

[0289] In the above-mentioned embodiment of the present application, first, the communication node calculates a new hysteresis threshold according to the original hysteresis threshold and the random number. Specifically, the new hysteresis threshold can be calculated in a variety of ways, for example, the new hysteresis threshold is the sum of the original hysteresis threshold and the random number. The specific calculation method is not used to limit the protection scope of the embodiment of the present application, and will not be repeated here.

[0290] Secondly, the communication node reselects the cell according to the new hysteresis threshold.

[0291] Specifically, according to formula R s =Q meas,s +Q hystn -Q offset1 +Q offset2 Calculate the quality of the serving cell;

[0292] According to the formula R n =Q meas,n -Q offset3 -Q offset1 +Q offset2 Calculate the quality of the neighborhood;

[0293] When the quality of the neighboring cell is higher than that of the serving cell, the UE performs cell reselection.

[0294] Among them, R s is the quality of the service cell, R n is the quality of the neighboring area, Q meas，s is the measured value of the serving cell, Q meas，n is the measured value of the neighboring area, Q hystn is the new hysteresis threshold, Q offset1 is the cell reselection bias or frequency offset during the cell reselection process, Q offset2 Q is the penalty reselection bias of the cell when the UE fails to access the cell. offset3 Reselection bias for the carrier that carries the SC-PTM service to be received.

[0295] Generally speaking, Q offset1 , Q offset2 and Q offset3 The value can be 0, then according to the formula R s =Q meas,s +Q hystn Calculate the quality of the service cell; according to the formula R n =Q meas,n Calculate the quality of the neighboring cell. That is, when the measured value of the neighboring cell is greater than the sum of the measured value of the serving cell and the hysteresis threshold, it means that the quality of the neighboring cell is higher than that of the serving cell.

[0296] In the above-mentioned cell reselection method, the cell is reselected according to a random number. Since the random number is random, the specific values ​​of different communication nodes will naturally be different. When a large number of UEs concentrated together (such as UEs on a train) move at the same time, since the hysteresis thresholds of all UEs are different, the triggering conditions for cell reselection are also different. Therefore, the number of communication nodes that simultaneously issue mobility instructions for cell reselection is reduced, thereby reducing the instantaneous signaling storm.

[0297] See also Fig.11 Another embodiment of the present application provides a cell reselection method, comprising:

[0298] Step 1100: The communication node sends a randomized hysteresis threshold.

[0299] Optionally, the communication node also sends the original hysteresis threshold.

[0300] In the above-mentioned embodiment of the present application, the communication node may send the randomized hysteresis threshold by sending a broadcast message, that is, the broadcast message includes the randomized hysteresis threshold.

[0301] Optionally, the broadcast message also includes the original hysteresis threshold.

[0302] The above communication node may be any communication node, for example, Fig.10 The communication node in is UE, Fig.11 The communication node in is the base station.

[0303] For example, Fig.12 As shown, the base station 91 sends the original hysteresis threshold and the randomized hysteresis threshold to the UE 92, the UE 92 generates a random number according to the randomized hysteresis threshold, calculates a new hysteresis threshold according to the original hysteresis threshold and the randomized hysteresis threshold, and performs cell reselection according to the new hysteresis threshold.

[0304] See also Fig.13 Another embodiment of the present application provides a communication node, including:

[0305] A receiving module 1301 is used to receive a randomized hysteresis threshold;

[0306] A generating module 1302, configured to generate a random number according to a randomized hysteresis threshold;

[0307] The reselection module 1303 is used to perform cell reselection according to a random number.

[0308] Optionally, the generating module 1302 is specifically used for:

[0309] The random number is generated according to any of the following formulas:

[0310] Q hyst_offset =rand(a,b)Qhyst_R , Q hyst_offset =rand(-aQ hyst_R ,bQ hyst_R );

[0311] Among them, Q hyst_offset is the random number, Q hyst_R is the randomization hysteresis threshold, b is greater than a.

[0312] Optionally, a is 0 and b is 1;

[0313] Alternatively, a is -1, and b is 0;

[0314] Alternatively, a is -1, and b is 1.

[0315] Optionally, the reselection module 1303 is specifically used for:

[0316] Calculate a new hysteresis threshold according to the original hysteresis threshold and the random number;

[0317] Cell reselection is performed according to the new hysteresis threshold.

[0318] Optionally, the receiving module 1301 is specifically used for:

[0319] A broadcast message is received, where the broadcast message includes the randomized hysteresis threshold.

[0320] Optionally, the broadcast message also includes the original hysteresis threshold.

[0321] Optionally, the receiving module 1301 is further used to: receive an original hysteresis threshold.

[0322] See also Fig.14 , an embodiment of the present application proposes a communication node, including:

[0323] The sending module 1401 is used to send a randomized hysteresis threshold.

[0324] Optionally, the sending module 1401 is further used to: send an original hysteresis threshold.

[0325] Optionally, the sending module 1401 is specifically used to send a broadcast message, and the broadcast message includes the randomized hysteresis threshold.

[0326] Optionally, the broadcast message also includes the original hysteresis threshold.

[0327] Another embodiment of the present application provides a communication node, including a processor and a computer-readable storage medium, wherein the computer-readable storage medium stores instructions, and when the instructions are executed by the processor, any of the above-mentioned cell reselection methods is implemented.

[0328] Another embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of any of the above-mentioned cell reselection methods are implemented.

[0329] See also Fig.15 Another embodiment of the present application provides a cell reselection system, including:

[0330] The first communication node 1501 is used to send a randomized hysteresis threshold to the second communication node 1502;

[0331] The second communication node 1502 is configured to receive a randomized hysteresis threshold; generate a random number according to the randomized hysteresis threshold; and perform cell reselection according to the random number.

[0332] Optionally, the first communication node 1501 is further used to: send the original hysteresis threshold to the second communication node 1502;

[0333] The second communication node 1502 is specifically used for:

[0334] Receive a randomized hysteresis threshold and a source hysteresis threshold; generate a random number according to the randomized hysteresis threshold; calculate a new hysteresis threshold according to the original hysteresis threshold and the random number; and perform cell reselection according to the new hysteresis threshold.

[0335] The current cell selection strategy is to sort the cells by radio quality or cell reselection priority, giving priority to the cell with the best radio quality or the cell with the highest cell reselection priority, without considering the cell's characteristics or load. The selected cell may not be the cell that can provide the best service quality for the user.

[0336] See also Fig.16 Another embodiment of the present application provides a cell reselection method, comprising:

[0337] Step 1600: The communication node determines a cell equivalence quality interval according to a cell quality equivalence threshold.

[0338] In the above-mentioned embodiment of the present application, the cell quality equivalence threshold may adopt the hysteresis threshold of cell reselection (for example, the above-mentioned original hysteresis threshold, or a new hysteresis threshold, etc.).

[0339] In the above-mentioned embodiment of the present application, the cell equivalence quality interval may be any one of the following:

[0340] [Q svr -Q eT ,Q svr +Q eT ]、[Q svr ,Q svr +Q eT ]、[Qsvr -Q eT ,Q svr ]、[Q svr -Q eT1 ,Q svr +Q eT2 ];

[0341] Among them, Q svr is the quality of the current serving cell, Q eT , Q eT1 , Q eT2 Both are cell quality equivalence thresholds.

[0342] That is to say, the cell quality equivalence threshold can be one, namely Q eT , or two different values, namely Q eT1 , Q eT2 .

[0343] In the above-mentioned embodiment of the present application, when the quality of the neighboring cell is within the cell equivalence quality interval, the quality of the neighboring cell is considered to be equivalent to the quality of the current serving cell. Although the quality of the neighboring cell is equivalent to the quality of the current serving cell, the service quality of the neighboring cell may be better than the service quality of the current serving cell. Therefore, it is necessary to improve the service quality through cell preference reselection.

[0344] Step 1601: The communication node selects a set consisting of neighboring cells whose qualities are within the cell equivalence quality interval and the current serving cell as candidate cells for cell preference reselection.

[0345] In the above-mentioned embodiments of the present application, the communication node may adopt any of the following methods to perform cell preference reselection.

[0346] In the first one, the communication node randomly selects a neighboring cell as a serving cell from a set consisting of neighboring cells whose quality is within the cell equivalence quality interval and the current serving cell.

[0347] Second, the communication node receives a cell reselection tendency indication, and performs cell reselection tendency according to the cell reselection tendency indication.

[0348] The cell reselection tendency indication may be carried in the broadcast message.

[0349] The cell reselection tendency indication includes any of the following:

[0350] Selection tendency and cell characteristics of cell reselection.

[0351] The cell characteristics include at least one of the following:

[0352] The cell is connected to the second core network, the cell is connected to the second core network, the support information of the second core network connected to the cell for the user plane optimization plan, the support information of the second core network connected to the cell for the energy-saving state of the communication node, and the weight of the cell selection.

[0353] Then, any of the following methods may be used to perform cell preference reselection according to the cell reselection preference indication.

[0354] In the first method, the communication node selects one of the neighboring cells corresponding to the selection tendency of cell reselection as the serving cell from the neighboring cells whose quality is within the cell equivalence quality interval.

[0355] For example, the selection tendency of cell reselection may be that the fifth communication node supporting the second core network gives priority to the cell connected to the second core network; specifically, the communication node supporting the second core network may be instructed through a broadcast message to give priority to the cell connected to the second core network.

[0356] Then, the communication node directly selects the neighboring cell connected to the second core network as the serving cell;

[0357] If there are multiple neighboring cells connected to the second core network, then one may be selected at random from the neighboring cells connected to the second core network.

[0358] Second, when the communication node supports the second core network, the communication node selects one of the cells having the cell characteristic of being connected to the second core network as a serving cell from the neighboring cells whose quality is within the cell equivalence quality interval.

[0359] For example, the cell characteristics refer to whether the cell is connected to the second core network. Specifically, the cell characteristics can be indicated through a broadcast message. Then the fifth communication node supporting the second core network gives priority to the cell connected to the second core network through self-set rules.

[0360] If there are multiple neighboring cells connected to the second core network, then one may be selected at random from the neighboring cells connected to the second core network.

[0361] In a third method, the communication node selects a neighboring cell as a serving cell from the neighboring cells whose qualities are within the cell equivalence quality interval according to the cell selection weight.

[0362] In the method, first, the communication node numbers the neighboring cells and the current serving cell whose qualities are within the cell equivalence quality interval according to a preset order.

[0363] Secondly, use any of the following methods to select a neighboring cell as a serving cell.

[0364] 1. Communication node selection satisfies The cell with the smallest number is used as the serving cell;

[0365] Among them, w(j) is the weight of the neighboring cell numbered j (for example, the value is 0 to 100, and the larger the value, the greater the possibility of the cell being selected), n is the number of neighboring cells whose quality is within the cell equivalence quality interval, and i represents the cell number.

[0366] 2. When U≤AP(0), the fifth communication node selects the neighboring cell numbered 0 as the serving cell;

[0367] when When , the fifth communication node selects the neighboring cell numbered i as the serving cell;

[0368] in, U = 2 (I mod B) + 1;

[0369] Among them, P(0) is the probability of selecting the neighboring cell numbered 0, P(j) is the probability of selecting the neighboring cell numbered j, I is the identifier of the fifth communication node, w(j) is the weight of the neighboring cell numbered j, w(k) is the weight of the neighboring cell numbered k, n is the number of neighboring cells whose quality is within the cell equivalence quality interval, i represents the cell number, i represents the cell number, A and B are integers greater than or equal to 1, for example, A is 200 and B is 100.

[0370] Among them, the identifier of the communication node can be at least one of the following: International Mobile Subscriber Identification Number (IMSI), Temporary Mobile Subscriber Identity (S-TMSI), etc.

[0371] See also Fig.17 Another embodiment of the present application provides a cell reselection method, comprising:

[0372] Step 1700: The communication node sends at least one of the following: a cell quality equivalence threshold, and a cell reselection tendency indication.

[0373] Specifically, the communication node may indicate at least one of the following through a broadcast message: a cell quality equivalence threshold, an indication of a tendency to cell reselection, that is, the broadcast message carries at least one of the following: a cell quality equivalence threshold, an indication of a tendency to cell reselection.

[0374] The cell quality equivalence threshold may also adopt the hysteresis threshold of cell reselection (for example, the original hysteresis threshold mentioned above, or a new hysteresis threshold, etc.).

[0375] For example, Fig.18As shown, base station 181 sends a cell quality equivalence threshold and a cell reselection tendency indication to UE 182. UE 182 determines a cell equivalence quality interval according to the cell quality equivalence threshold, takes a set of neighboring cells whose qualities are within the cell equivalence quality interval and a current server cell as candidate cells, and performs cell tendency reselection according to the cell reselection tendency indication.

[0376] See also Fig.19 Another embodiment of the present application provides a communication node, including:

[0377] A determination module 1901 is used to determine a cell equivalence quality interval according to a cell quality equivalence threshold;

[0378] The reselection module 1902 is used to perform cell preference reselection by taking a set of neighboring cells whose qualities are within the cell equivalence quality interval and the current serving cell as candidate cells.

[0379] Optionally, the method further includes: a receiving module 1903, configured to receive the cell quality equivalence threshold.

[0380] Optionally, the reselection module 1902 is specifically configured to:

[0381] A neighboring cell is randomly selected as a serving cell from a set consisting of neighboring cells whose qualities are within the cell equivalence quality interval and the current serving cell.

[0382] Optionally, the method further includes: a receiving module 1903, configured to receive a tendency indication of cell reselection;

[0383] The reselection module 1902 is specifically used for:

[0384] Perform cell preference reselection according to the cell reselection preference indication.

[0385] Optionally, the cell reselection tendency indication includes any of the following:

[0386] Selection tendency and cell characteristics of cell reselection.

[0387] The cell characteristics include at least one of the following:

[0388] The cell is connected to the second core network, the cell is connected to the first core network, the support information of the second core network connected to the cell for the user plane optimization plan, the support information of the second core network connected to the cell for the energy-saving state of the second communication node, and the weight of the cell selection.

[0389] Optionally, the reselection module 1902 is specifically configured to perform cell preference reselection by using any of the following methods:

[0390] Selecting, from a set consisting of neighboring cells whose qualities are within the cell equivalence quality interval and a current serving cell, one of the cells corresponding to the selection tendency of the cell reselection as the serving cell;

[0391] When supporting the second core network, selecting, from the set consisting of neighboring cells whose quality is within the cell equivalence quality interval and the current serving cell, one of the cells having a cell characteristic of being connected to the second core network as the serving cell;

[0392] According to the cell selection weight, a neighboring cell is selected as a serving cell from a set consisting of neighboring cells whose qualities are within the cell equivalence quality interval and a current serving cell.

[0393] Optionally, the reselection module 1902 is specifically configured to:

[0394] Numbering the neighboring cells and the current serving cell whose qualities are within the cell equivalence quality interval according to a preset order;

[0395] Choose to meet The cell with the smallest number is used as the serving cell;

[0396] Among them, w(j) is the weight of the neighboring cell numbered j, n is the number of neighboring cells whose quality is within the cell equivalence quality interval, and i represents the cell number.

[0397] Optionally, the reselection module 1902 is specifically configured to:

[0398] Numbering the neighboring cells and the current serving cell whose qualities are within the cell equivalence quality interval according to a preset order;

[0399] When U≤AP(0), the neighboring cell numbered 0 is selected as the serving cell; or When , select the neighboring cell numbered i as the serving cell;

[0400] in, U = 2 (I mod B) + 1;

[0401] Among them, P(0) is the probability of selecting the neighboring cell numbered 0, P(j) is the probability of selecting the neighboring cell numbered j, I is the identifier of the communication node, w(j) is the weight of the neighboring cell numbered j, w(k) is the weight of the neighboring cell numbered k, n is the number of neighboring cells whose quality is within the cell equivalence quality interval, i represents the cell number, and A and B are integers greater than or equal to 1.

[0402] See also Fig. 20 Another embodiment of the present application provides a communication node, including:

[0403] The sending module 2001 is used to send at least one of the following: a cell quality equivalence threshold and a cell reselection tendency indication.

[0404] Another embodiment of the present application proposes a communication node, including a processor and a computer-readable storage medium, wherein the computer-readable storage medium stores instructions, and when the instructions are executed by the processor, any of the above-mentioned cell reselection methods is implemented.

[0405] An embodiment of the present application provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of any of the above-mentioned cell reselection methods are implemented.

[0406] See also Fig.21 Another embodiment of the present application provides a cell reselection system, including:

[0407] The first communication node 2101 is used to send a cell quality equivalence threshold;

[0408] The second communication node 2102 is used to determine the cell equivalence quality interval according to the cell quality equivalence threshold; and take the set consisting of the neighboring cells whose quality is within the cell equivalence quality interval and the current serving cell as candidate cells for cell preference reselection.

[0409] Optionally, the first communication node 2101 is further configured to: send a cell reselection tendency indication;

[0410] The second communication node 2102 is specifically used for:

[0411] The cell equivalence quality interval is determined according to the cell quality equivalence threshold; a set consisting of neighboring cells and a current serving cell whose quality is within the cell equivalence quality interval is taken as candidate cells, and cell preference reselection is performed according to the cell reselection preference indication.

[0412] In the related art, after the UE enters the context suspension state of the Radio Resource Control (RRC) idle (IDLE) mode,

[0413] The UE is in the RRC IDLE mode context suspension state within the paging time window (PTW) length of the eDRX cycle, and if the UE has no data transmission or reception within the PTW length of the eDRX cycle, it enters the eDRX state within the non-PTW length of the eDRX cycle; if the UE has data transmission or reception within the PTW length of the eDRX cycle, it enters the connected state.

[0414] Alternatively, the UE is in the RRC IDLE mode context suspended state within the PSM activation timer (PSM Active Timer, or T3324), and if the UE does not send or receive data within the PSM activation timer, it enters the PSM state within the PSM duration; and exits the PSM state within the PSM duration (that is, re-enters the PSM activation timer and is in the RRC IDLE mode context suspended state within the PSM activation timer).

[0415] In the related technology, when the UE is in the eDRX or PSM state, the connection between the base station corresponding to the UE and the core network needs to be disconnected. When the connection between the base station corresponding to the UE and the core network is maintained, the UE cannot enter the eDRX or PSM state. In other words, when the connection between the base station corresponding to the UE and the core network is maintained, the UE cannot save energy; when the UE enters the eDRX or PSM state, the core network will be unable to send downlink data to the UE.

[0416] See also Fig. 22 Another embodiment of the present application provides an energy-saving state conversion method, including:

[0417] Step 2200: The base station sends first indication information for releasing the RRC connection to the terminal, and sends second indication information for entering the energy-saving state to the core network element.

[0418] In the above-mentioned embodiment of the present application, after receiving the first indication information, the terminal enters the RRC IDLE mode context suspension state; after the terminal enters the RRC IDLE mode context suspension state,

[0419] The terminal is in the RRC IDLE mode context suspension state within the PTW length of the eDRX cycle, and if the terminal has no data transmission or reception within the PTW length of the eDRX cycle, it enters the eDRX state within the non-PTW length of the eDRX cycle; if the terminal has data transmission or reception within the PTW length of the eDRX cycle, it enters the connected state.

[0420] Alternatively, the terminal is in the RRC IDLE mode context suspended state within the PSM activation timer, and if the terminal has no data transmission or reception within the PSM activation timer (PSM Active Timer, or T3324), the terminal enters the PSM state within the PSM duration; exits the PSM state during the PSM duration (that is, re-enters the PSM activation timer and is in the RRC IDLE mode context suspended state within the PSM activation timer);

[0421] Alternatively, the terminal is in the RRC IDLE mode context suspended state within the DSM activation timer, and if the terminal does not send or receive data within the DSM activation timer (DSM Active Timer, or T3324), it enters the DSM state within the DSM duration; and exits the DSM state within the DSM duration (that is, re-enters the DSM activation timer and is in the RRC IDLE mode context suspended state within the DSM activation timer).

[0422] In another embodiment of the present application described above, after receiving the second indication information, the core network element maintains the connection between the base station corresponding to the terminal and the core network element, and the connection between the base station corresponding to the terminal and the core network element enters an energy-saving state;

[0423] When the connection between the base station corresponding to the terminal and the core network element is in an energy-saving state, the base station can send at least one of the following to the core network element at any time: uplink data, uplink signaling;

[0424] The core network element can only send at least one of the following to the base station within the paging time window and / or the predefined data sending window: downlink data, downlink signaling.

[0425] Optionally, before the base station sends the first indication information for releasing the RRC connection to the terminal, the method further includes: the base station receives third indication information that the core network element supports the energy-saving state of the terminal.

[0426] Optionally, the method further includes:

[0427] The base station receives at least one of the following: downlink data and downlink signaling;

[0428] A paging message is sent to the terminal, and the connection between the base station corresponding to the terminal and the core network element enters a connected state.

[0429] Among them, since the terminal enters the RRC IDLE mode context suspension state, the core network element can only send at least one of the following to the base station within the PTW and / or the predefined data transmission window: downlink data, downlink signaling;

[0430] Therefore, the base station can only receive at least one of the following within the PTW and / or the data sending window: downlink data and downlink signaling.

[0431] That is to say, only when the terminal is in the RRC IDLE mode context suspension state, the core network network element can send at least one of the following to the base station: downlink data, downlink signaling, and when the terminal is in eDRX or PSM state or DSM state, the core network network element cannot send at least one of the following to the base station: downlink data, downlink signaling, and the terminal then monitors the paging message in the PTW and / or predefined data sending window.

[0432] After receiving the paging message, the terminal initiates a physical random access channel (PRACH) process, thereby entering an RRC connection state or an early data transmission (EDT) state.

[0433] After the terminal enters the RRC connected state or the EDT state, the base station can send the received downlink data and / or downlink signaling to the terminal.

[0434] Among them, after the connection between the base station corresponding to the terminal and the core network element enters the connected state, data and / or signaling can be sent and received between the base station and the core network element at will.

[0435] Optionally, the method further includes:

[0436] The base station receives at least one of the following: uplink data and uplink signaling, and sends at least one of the following to the core network element: uplink data and uplink signaling;

[0437] The connection between the base station corresponding to the terminal and the core network element enters the connected state.

[0438] Among them, the terminal can actively initiate the PRACH process at any time, thereby entering the RRC connected state or the EDT state. After entering the RRC connected state or the EDT state, the terminal can send uplink data and / or uplink signaling to the base station.

[0439] Among them, after the connection between the base station corresponding to the terminal and the core network element enters the connected state, data and / or signaling can be sent and received between the base station and the core network element at will.

[0440] See also Fig.23 Another embodiment of the present application provides an energy-saving state conversion method, including:

[0441] Step 2300: The core network element receives instruction information for entering the energy-saving state.

[0442] Step 2301, maintain the connection between the base station corresponding to the terminal and the core network element, and the connection between the base station corresponding to the terminal and the core network element enters the energy-saving state; when the connection between the base station corresponding to the terminal and the core network element is in the energy-saving state, the base station can send at least one of the following to the core network element at any time: uplink data, uplink signaling, and the core network element can only send at least one of the following to the base station within the paging time window and / or the predefined data sending window: downlink data, downlink signaling.

[0443] Optionally, before the core network network element receives the second indication information for entering the energy-saving state, the method further includes: the core network network element sends the third indication information to the base station that the core network network element supports the energy-saving state.

[0444] Specifically, the core network element may send the third indication information to the base station through public signaling.

[0445] The public signaling includes at least one of the following:

[0446] S1 SETUP RESPONSE, Mobility Management Entity (MME) configuration update (CONFIGURATION UPDATE) message, and message corresponding to the Ng port.

[0447] Optionally, the method further includes:

[0448] The core network element sends at least one of the following to the base station within the paging time window and / or the predefined data sending window: downlink data, downlink signaling, and the connection between the base station corresponding to the terminal and the core network element enters a connected state.

[0449] Optionally, the method further includes:

[0450] The core network element receives at least one of the following: uplink data and uplink signaling, and the connection between the base station corresponding to the terminal and the core network element enters a connected state.

[0451] See also Fig.24 Another embodiment of the present application provides a base station, including:

[0452] The sending module 2402 is used to send first indication information for releasing the radio resource control connection to the terminal, and send second indication information for entering the energy-saving state to the core network element.

[0453] Optionally, also include:

[0454] The receiving module 2401 is used to receive the third indication information that the core network element supports the energy-saving state of the terminal.

[0455] Optionally, also include:

[0456] The receiving module 2401 is used to receive downlink data and / or downlink signaling;

[0457] The sending module 2402 is also used for:

[0458] A paging message is sent to the terminal, and the connection between the base station corresponding to the terminal and the core network element enters a connected state.

[0459] Optionally, also include:

[0460] The receiving module 2401 is used to receive uplink data and / or uplink signaling;

[0461] The sending module 2402 is also used for:

[0462] At least one of the following is sent to the core network element: uplink data, uplink signaling, and the connection between the base station corresponding to the terminal and the core network element enters a connected state.

[0463] See also Fig.25 Another embodiment of the present application provides a core network element, including:

[0464] The receiving module 2501 is used to receive the indication information of entering the energy-saving state;

[0465] Processing module 2502 is used to maintain the connection between the base station corresponding to the terminal and the core network network element, and the connection between the base station corresponding to the terminal and the core network network element enters an energy-saving state; when the connection between the base station corresponding to the terminal and the core network network element is in an energy-saving state, the base station can send at least one of the following to the core network network element at any time: uplink data, uplink signaling, and the core network network element can only send at least one of the following to the base station within the paging time window and / or a predefined data sending window: downlink data, downlink signaling.

[0466] Optionally, also include:

[0467] The sending module 2503 is used to send third indication information to the base station that the core network element supports the energy-saving state of the terminal.

[0468] Optionally, the receiving module 2501 is further used for:

[0469] Sending at least one of the following to the base station within the paging time window and / or the predefined data sending window: downlink data, downlink signaling, and the connection between the base station corresponding to the terminal and the core network element enters a connected state;

[0470] Alternatively, at least one of the following is received: uplink data, uplink signaling, and the connection between the base station corresponding to the terminal and the core network element enters a connected state.

[0471] Another embodiment of the present application proposes a base station, including a processor and a computer-readable storage medium, wherein the computer-readable storage medium stores instructions, and when the instructions are executed by the processor, any of the above energy-saving state conversion methods is implemented.

[0472] Another embodiment of the present application proposes a core network element, including a processor and a computer-readable storage medium, wherein the computer-readable storage medium stores instructions, and when the instructions are executed by the processor, any of the above-mentioned energy-saving state conversion methods is implemented.

[0473] An embodiment of the present application provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of any of the above energy-saving state conversion methods are implemented.

[0474] See also Fig.26 , an embodiment of the present application proposes an energy-saving state conversion system, including: any of the above-mentioned base stations 2601 and any of the above-mentioned core network elements 2602.

[0475] Although the embodiments disclosed in the embodiments of the present application are as above, the contents described are only embodiments adopted to facilitate understanding of the embodiments of the present application, and are not intended to limit the present application. Any technician in the field to which the present application belongs can make any modifications and changes in the form and details of implementation without departing from the spirit and scope disclosed in the embodiments of the present application, but the scope of patent protection of the embodiments of the present application shall still be subject to the scope defined in the attached claims.

Claims

1. A cell processing method, comprising: The first communication node sends a neighbor list; wherein the neighbor list includes: A neighbor cell list connected to the first core network and at least one neighbor cell list connected only to the second core network; Alternatively, a neighbor list connected only to the first core network, a neighbor list connected to both the first core network and the second core network, and at least one neighbor list connected only to the second core network, The neighboring cell list includes neighboring cell information of at least one neighboring cell, and the neighboring cell information includes cell characteristics, wherein the cell characteristics include support information of the second core network to which the cell is connected for the energy-saving state of the second communication node, Among them, the support information of the second core network connected to the cell for the energy-saving state of the second communication node includes any one of the following: the second core network connected to the cell supports the energy-saving state of the second communication node, and the second core network connected to the cell does not support the energy-saving state of the second communication node.

2. The cell processing method according to claim 1, characterized in that: The first communication node sending the neighboring cell list includes: The first communication node sends a broadcast message, where the broadcast message includes the neighbor list.

3. The cell processing method according to claim 1 or 2, characterized in that: The neighbor cell list includes at least one of the following: a same-frequency neighbor cell list and a different-frequency neighbor cell list.

4. The cell processing method according to claim 1 or 2, characterized in that: The neighbor cell list connected to the first core network includes: neighbor cell information of at least one neighbor cell connected only to the first core network, and neighbor cell information of at least one neighbor cell connected to both the first core network and the second core network.

5. The cell processing method according to claim 1 or 2, characterized in that: The neighboring cell information includes at least one of the following: Frequency point, cell identifier, minimum reception level threshold required for the second communication node to reside in the cell, minimum quality level threshold required for the second communication node to reside in the cell, cell reselection bias, frequency bias for cell reselection, maximum transmission power of the second communication node allowed in the cell, and maximum transmission power of the second communication node allowed by the frequency band.

6. The cell processing method according to claim 1, characterized in that: The cell characteristics also include support information for the user plane optimization solution of the second core network connected to the cell; Among them, the support information of the second core network connected to the cell for the user plane optimization solution includes any one of the following: the second core network connected to the cell supports the user plane optimization solution, and the second core network connected to the cell does not support the user plane optimization solution.

7. The cell processing method according to claim 6, characterized in that: The energy-saving state includes the following characteristics: When the second communication node enters at least one of the following: an extended discontinuous reception state, a low power mode state, or a deep sleep mode state, the connection between the first communication node corresponding to the second communication node and the core network element is maintained, and the connection between the first communication node corresponding to the second communication node and the core network element enters an energy-saving state; When the connection between the first communication node corresponding to the second communication node and the core network element is in an energy-saving state, the first communication node may send at least one of the following to the core network element at any time: uplink data, uplink signaling; The core network element sends at least one of the following to the first communication node within the paging time window and / or the predefined data sending window: downlink data, downlink signaling.

8. The cell processing method according to claim 6, characterized in that: The energy-saving state includes the following characteristics: The first communication node receives at least one of the following: extended discontinuous reception configuration information, low power consumption mode configuration information, and deep sleep mode configuration information; When the first communication node receives at least one of the following: downlink data, downlink signaling outside the paging time window and / or the predefined data transmission window according to at least one of the following: the extended discontinuous reception configuration information, the low power mode configuration information, and the deep sleep mode configuration information, the first communication node caches at least one of the following: the downlink data, the downlink signaling; The first communication node sends a paging message to the second communication node within the paging time window and / or the predefined data sending window, and after the second communication node enters the radio resource control connection state or the early data transmission state, sends at least one of the following cached items to the second communication node: downlink data, downlink signaling.

9. The cell processing method according to claim 6, characterized in that: The energy-saving state includes the following characteristics: The first communication node receives at least one of the following: extended discontinuous reception configuration information, low power consumption mode configuration information, and deep sleep mode configuration information; When the first communication node receives at least one of the following: downlink data, downlink signaling, it sends a paging message to the second communication node within the paging time window and / or the predefined data sending window according to at least one of the following: the extended discontinuous reception configuration information, the low power consumption mode configuration information, the deep sleep mode configuration information, and after the second communication node enters the wireless resource control connection state or the early data transmission state, it sends at least one of the following to the second communication node: the downlink data, the downlink signaling.

10. A cell processing method, comprising: The communication node receives a neighbor list; wherein the neighbor list includes: A neighbor cell list connected to the first core network and at least one neighbor cell list connected only to the second core network; Alternatively, a neighboring cell list connected only to the first core network, a neighboring cell list connected to both the first core network and the second core network, and at least one neighboring cell list connected only to the second core network; When the communication node does not support the second core network, the communication node processes the neighboring cells in the neighboring cell list connected to the first core network; or the communication node processes the neighboring cells in the neighboring cell list connected only to the first core network and the neighboring cell list connected to both the first core network and the second core network; Alternatively, when the communication node supports the second core network, the communication node processes all neighboring cells in the neighboring cell list, The neighboring cell list includes neighboring cell information of at least one neighboring cell, and the neighboring cell information includes cell characteristics, wherein the cell characteristics include support information of the second core network to which the cell is connected for the energy-saving state of the second communication node, Among them, the support information of the second core network connected to the cell for the energy-saving state of the second communication node includes any one of the following: the second core network connected to the cell supports the energy-saving state of the second communication node, and the second core network connected to the cell does not support the energy-saving state of the second communication node.

11. The cell processing method according to claim 10, characterized in that: The processing of the neighboring cells in all neighboring cell lists includes: The communication node performs neighbor measurement as a union of all neighbor lists as target neighbor to be measured; Alternatively, the communication node uses the union of all neighboring cells in the neighboring cell list as candidate cells for cell reselection.

12. The cell processing method according to claim 10, characterized in that: The communication node processes the neighboring cell in the neighboring cell list connected to the first core network, including: The communication node performs neighbor cell measurement using the union of neighbor cells in the neighbor cell list connected to the first core network as the target neighbor cells to be measured; Alternatively, the communication node uses the union of neighbor cells in the neighbor cell list connected to the first core network as candidate cells for cell reselection.

13. The cell processing method according to claim 10, characterized in that: The communication node processes the neighboring cells in the neighboring cell list connected only to the first core network and the neighboring cell list connected to the first core network and the second core network at the same time, including: The communication node performs neighbor cell measurement by taking the neighbor cells in the neighbor cell list connected only to the first core network and the union of the neighbor cells in the neighbor cell list connected to both the first core network and the second core network as target neighbor cells to be measured; Alternatively, the communication node uses the neighboring cells in the neighboring cell list connected only to the first core network and the union of the neighboring cells in the neighboring cell list connected to both the first core network and the second core network as candidate cells for cell reselection.

14. The cell processing method according to any one of claims 10 to 13, characterized in that: The communication node receiving the neighbor list includes: The communication node receives a broadcast message; wherein the broadcast message includes the neighbor list.

15. The cell processing method according to any one of claims 10 to 13, characterized in that: The neighboring cell information includes at least one of the following: Frequency point, cell identifier, minimum reception level threshold required for communication nodes to reside in the cell, minimum quality level threshold required for communication nodes to reside in the cell, cell reselection bias, frequency bias for cell reselection, maximum transmission power of communication nodes allowed in the cell, and maximum transmission power of communication nodes allowed in the frequency band.

16. The cell processing method according to claim 10, characterized in that: The communication node processes the neighboring area including: The communication node determines a cell equivalence quality interval according to a cell quality equivalence threshold; When the communication node does not support the second core network, the communication node will connect to the neighboring cell list of the first core network, or the neighboring cell list connected only to the first core network and the neighboring cell list connected to both the first core network and the second core network, and the neighboring cell with quality within the cell equivalence quality interval and the current serving cell will perform cell preference reselection based on cell characteristics and capability matching of the communication node; Alternatively, when the communication node supports the second core network, the communication node performs cell preference reselection for all neighbor cells in the neighbor cell list whose quality is within the cell equivalence quality interval and the current serving cell based on cell characteristics and capability matching of the communication node.

17. A communication node, comprising: A sending module is used to send a neighboring cell list; wherein the neighboring cell list includes: A neighbor cell list connected to the first core network and at least one neighbor cell list connected only to the second core network; Alternatively, a neighbor list connected only to the first core network, a neighbor list connected to both the first core network and the second core network, and at least one neighbor list connected only to the second core network, The neighboring cell list includes neighboring cell information of at least one neighboring cell, and the neighboring cell information includes cell characteristics, wherein the cell characteristics include support information of the second core network to which the cell is connected for the energy-saving state of the second communication node, Among them, the support information of the second core network connected to the cell for the energy-saving state of the second communication node includes any one of the following: the second core network connected to the cell supports the energy-saving state of the second communication node, and the second core network connected to the cell does not support the energy-saving state of the second communication node.

18. A communication node, comprising: A receiving module is used to receive a neighboring cell list, wherein the neighboring cell list includes: A neighbor cell list connected to the first core network and at least one neighbor cell list connected only to the second core network; Alternatively, a neighboring cell list connected only to the first core network, a neighboring cell list connected to both the first core network and the second core network, and at least one neighboring cell list connected only to the second core network; A processing module, configured to process a neighboring cell in a neighboring cell list connected to the first core network when the second core network is not supported; or process a neighboring cell list connected only to the first core network and a neighboring cell list connected to both the first core network and the second core network; Alternatively, when the second core network is supported, all neighboring cells in the neighboring cell list are processed, The neighboring cell list includes neighboring cell information of at least one neighboring cell, and the neighboring cell information includes cell characteristics, wherein the cell characteristics include support information of the second core network to which the cell is connected for the energy-saving state of the second communication node, Among them, the support information of the second core network connected to the cell for the energy-saving state of the second communication node includes any one of the following: the second core network connected to the cell supports the energy-saving state of the second communication node, and the second core network connected to the cell does not support the energy-saving state of the second communication node.

19. A communication node, comprising a processor and a computer-readable storage medium, wherein the computer-readable storage medium stores instructions, characterized in that: When the instruction is executed by the processor, the cell processing method according to any one of claims 1 to 9 is implemented, or the cell processing method according to any one of claims 10 to 16 is implemented.

20. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the computer program implements the steps of the cell processing method according to any one of claims 1 to 9, or implements the steps of the cell processing method according to any one of claims 10 to 16.

21. A cell processing system, comprising the communication node according to claim 17 and the communication node according to claim 18.

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