Cell reselection, information transmission method and device, communication device and storage medium

Abstract

This application provides a cell reselection method and apparatus, an information transmission method and apparatus, a communication device, and a storage medium. The cell reselection method, applied in a terminal, includes: receiving priority information of a tracking area (TA); and performing cell reselection based on the priority information.

Description

[0001] This application is a divisional application of Chinese application No. 202080000150.6, filed on January 20, 2020, entitled “Cell Reselection, Information Transmission Method and Apparatus, Communication Equipment and Storage Medium”. Technical Field

[0002] The embodiments of this application relate to, but are not limited to, the field of wireless communication, and particularly relate to a cell reselection method and apparatus, an information transmission method and apparatus, a communication device, and a storage medium. Background Technology

[0003] 5G introduces network slicing technology, which allows the network (core network and / or access network) to be divided into multiple network slices. Different services are transmitted in different network slices without interfering with each other.

[0004] During movement, the terminal performs cell reselection based on its location. However, sometimes the selected cell cannot provide the required network slice, resulting in the terminal's communication quality not meeting expectations. Sometimes, network slicing issues can also cause the terminal to perform frequent cell reselection. Summary of the Invention

[0005] This application provides a cell reselection method and apparatus, an information transmission method and apparatus, a communication device, and a storage medium.

[0006] The first aspect of this application provides a cell reselection method, which is applied in a terminal and includes: receiving priority information of a tracking area (TA); and performing cell reselection according to the priority information.

[0007] A second aspect of this application provides an information transmission method, which is applied in a base station and includes:

[0008] Priority information for the Terminal Agent (TA) is issued, wherein the priority information is used for cell reselection of the terminal.

[0009] A third aspect of this application provides a cell reselection device, which is applied in a terminal and includes:

[0010] The first receiving module is configured to receive priority information of the tracking area (TA).

[0011] The cell reselection module is configured to perform cell reselection based on the priority information.

[0012] A fourth aspect of this application provides an information processing apparatus, which is applied in a base station and includes:

[0013] The delivery module is configured to deliver priority information for the TA, wherein the priority information is used for cell reselection of the terminal.

[0014] A fifth aspect of this application provides a communication device, including:

[0015] antenna;

[0016] Memory;

[0017] The processor, connected to the antenna and the memory respectively, is configured to control the antenna to transmit and receive wireless signals by executing an executable program stored in the memory, and to perform the steps of any of the methods described in the first or second aspect.

[0018] A sixth aspect of this application provides a non-transitory computer-readable storage medium storing an executable program, wherein the executable program, when executed by a processor, implements the steps of any of the methods described in the first or second aspect above.

[0019] The method provided in this application introduces the first priority information of the TA (Targeting Technology). When the terminal performs cell reselection, it will reselect according to the priority information. Different TAs support different network slices. In this way, the terminal performs cell reselection according to the priority information of the TA, which reduces the phenomenon that the communication quality does not meet the expectations due to simply selecting an unsuitable camping cell based on the cell priority or frequency priority, which cannot provide the network slice required or supported by the terminal. This improves the communication quality and reduces unnecessary cell reselection by the terminal. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a wireless communication system provided in an embodiment of this application;

[0021] Figure 2 This is a schematic diagram of a network slicing method provided in an embodiment of this application;

[0022] Figure 3 This is a schematic diagram of the relationship between a tracking area, frequency point, and network slice provided in this application;

[0023] Figure 4 This is a flowchart illustrating the cell reselection method provided in the embodiments of this application;

[0024] Figure 5 This is a flowchart illustrating a cell reselection method provided in this application;

[0025] Figure 6 This is a flowchart illustrating a cell reselection method provided in this application;

[0026] Figure 7 This is a schematic diagram of the structure of a cell reselection device provided in an embodiment of this application;

[0027] Figure 8 This is a schematic diagram of the structure of an information transmission device provided in an embodiment of this application;

[0028] Figure 9 This is a schematic diagram of the structure of a terminal provided in an embodiment of this application;

[0029] Figure 10 This is a schematic diagram of the structure of a base station provided in an embodiment of this application. Detailed Implementation

[0030] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with those of this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the embodiments of this application as detailed in the appended claims.

[0031] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0032] It should be understood that although the terms first, second, third, etc., may be used to describe various information in embodiments of this disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first information may also be referred to as second information without departing from the scope of embodiments of this disclosure, and similarly, second information may also be referred to as first information. Depending on the context, the words “if” and “suppose” as used herein may be interpreted as “when”, “when”, or “in response to a determination”.

[0033] Please refer to Figure 1 This illustration shows a schematic diagram of the structure of a wireless communication system provided in an embodiment of this disclosure. Figure 1 As shown, the wireless communication system is a communication system based on cellular mobile communication technology. The wireless communication system may include: a number of terminals 11 and a number of base stations 12.

[0034] Terminal 11 can be a device that provides voice and / or data connectivity to a user. Terminal 11 can communicate with one or more core networks via a Radio Access Network (RAN). Terminal 11 can be an Internet of Things (IoT) terminal, such as a sensor device, a mobile phone (or "cellular" phone), and a computer with an IoT terminal. For example, it can be a fixed, portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted device. Examples include a station (STA), subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, remote terminal, access terminal, user terminal, user agent, user device, or user equipment (UE). Alternatively, terminal 11 can also be a device from an unmanned aerial vehicle (UAV). Alternatively, terminal 11 can also be a vehicle-mounted device, such as a vehicle computer with wireless communication capabilities, or a wireless communication device connected to an external vehicle computer. Alternatively, terminal 11 can also be a roadside device, such as a street light, traffic light, or other roadside device with wireless communication capabilities.

[0035] Base station 12 can be a network-side device in a wireless communication system. This wireless communication system can be a fourth-generation mobile communication (4G) system, also known as a Long Term Evolution (LTE) system; or it can be a 5G system, also known as a New Radio (NR) system or a 5G NR system. Alternatively, it can be a next-generation system after 5G. In this case, the access network in the 5G system can be called NG-RAN (New Generation-Radio Access Network). Alternatively, it can be an MTC system.

[0036] In this embodiment, base station 12 can be an evolved NB (eNB) used in a 4G system. Alternatively, base station 12 can also be a gNB (gNB) using a centralized-distributed architecture in a 5G system. When base station 12 adopts a centralized-distributed architecture, it typically includes a central unit (CU) and at least two distributed units (DU). The central unit is equipped with a protocol stack of Packet Data Convergence Protocol (PDCP), Radio Link Control (RLC), and Media Access Control (MAC) layers; the distributed units are equipped with a physical (PHY) layer protocol stack. This disclosure does not limit the specific implementation of base station 12.

[0037] Base station 12 and terminal 11 can establish a wireless connection via a wireless air interface. In different implementations, the wireless air interface is a wireless air interface based on the fourth-generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth-generation mobile communication network technology (5G) standard, such as a new air interface; or, the wireless air interface can also be a wireless air interface based on a next-generation mobile communication network technology standard based on 5G.

[0038] In some embodiments, terminals 11 can also establish E2E (End to End) connections. Examples include V2V (vehicle to vehicle), V2I (vehicle to Infrastructure), and V2P (vehicle to pedestrian) communication scenarios in vehicle-to-everything (V2X) communication.

[0039] In some embodiments, the wireless communication system described above may further include a network management device 13.

[0040] Several base stations 12 are connected to network management device 13. Network management device 13 can be a core network device in a wireless communication system, such as a Mobility Management Entity (MME) in an Evolved Packet Core (EPC). Alternatively, it can be other core network devices, such as a Serving Gateway (SGW), a Public Data Network Gateway (PGW), a Policy and Charging Rules Function (PCRF), or a Home Subscriber Server (HSS). The implementation of network management device 13 is not limited in this embodiment.

[0041] like Figure 2 As shown, some communication networks can provide network slices that support different service types. For example... Figure 2 As shown, three different service types (critical MTC services, such as data from health monitoring devices; massive MTC services, such as meter reading services; and MBB services, such as video services) are divided into three network slices. Each network slice may have different billing policies, security policies, and Quality of Service (QoS) policies. Large-scale service congestion in one network slice will not affect the normal operation of services in other network slices.

[0042] like Figure 3 As shown, the cells corresponding to frequency points f1 in TA1 and TA2 support eMBB network slicing, the cells corresponding to frequency point f2 in TA3 support both eMBB and URLLC network slicing, and the cells corresponding to frequency point f2 in TA2 support eMBB network slicing. For a UE that supports both eMBB and URLLC network slicing, when it is in the cell corresponding to frequency point f1 in TA1, the network expects frequency point f2 to have a lower priority than frequency point f1; this requirement cannot be configured through dedicated signaling. One proposed solution is that since the UE needs to perform a Tracking Area Update (TAU) when entering a new TA, the network can send the updated frequency point priority during the TAU. However, this does not actually solve the problem, because the TAU occurs after the reselection, and the UE has already selected an incorrect frequency point based on the previous frequency point priority during the reselection. In view of this, as Figure 4As shown, this example provides a cell reselection method, which, when applied to a terminal, includes:

[0043] S110: Receive priority information for the TA;

[0044] S120: Perform cell reselection based on the priority information.

[0045] In this embodiment, the method can be applied to various terminals that support network slicing, including conventional terminals, IoT terminals, vehicle-mounted terminals, or lightweight terminals. Conventional terminals may include mobile phones, and for example, Long Term Evolution (LTE) terminals.

[0046] In this embodiment, the priority information of the TA is: indication information related to the priority of the TA, such as, but not limited to, the priority information of a single TA, and the priority of the TA combined with the carrier or the supported network slice. Of course, this is just an example, and the actual implementation is not limited to this.

[0047] Typically, a TA contains multiple adjacent cells.

[0048] After receiving the priority information of the TA (Targeting Agent), the terminal performs cell reselection based on the TA's priority. This allows for consideration of network slice selection when different TAs are configured with different network slices, taking into account the TA's priority. Therefore, cell reselection by the terminal is not solely based on cell priority or frequency priority. This method of cell reselection reduces the likelihood of the terminal's current cell failing to provide the required or supported network slices, thus improving communication quality and reducing unnecessary cell reselections.

[0049] In some embodiments, the priority information includes:

[0050] The first type of priority indication information indicates the first priority among the TA priorities; the first priority is the priority of the TA itself.

[0051] The first type of priority indication information here refers to the priority of the TA within the TA priority. The TA priority here is priority information that describes the priority of the TA itself.

[0052] In some embodiments, when the TA priority of the first TA is higher than the TA priority of the second TA, the priority of the frequency points supported by the first TA is higher than the priority of the frequency points supported by the second TA.

[0053] If the priority of a TA is high, then the higher the priority of the TA, the higher the priority of its frequency point.

[0054] The higher the priority of a frequency point, the higher the priority of the network slices supported by that frequency point.

[0055] In some embodiments, the priority information includes:

[0056] The second type of priority indication information indicates the second priority among the TA priorities; the second priority is the priority of the TA and the frequency point combination supported by the TA.

[0057] In the embodiments of this application, the priority information can also be a second type of priority indication information, which indicates the priority of the TA and the frequency point combination supported by the TA.

[0058] The priority indicated by the second type of priority information here is the priority of the TA and the combination of the frequency points supported by the TA. This priority is positively correlated with the individual priority of the TA and the individual priority of the frequency points.

[0059] Specifically, S120 may include: performing cell reselection based on the TA's priority information, the signal quality of the serving cell, and the signal quality of neighboring cells. Generally, a cell with high priority and good signal quality is selected as the terminal's camping cell.

[0060] In this embodiment of the application, S120 may include:

[0061] When the signal quality of the serving cell of the terminal is greater than the first threshold, it is determined, based on the priority information, whether there is a TA priority of a different frequency cell to which the TA belongs that is higher than the TA priority of the serving cell of the terminal.

[0062] When the TA priority of the inter-frequency cell is higher than the TA priority of the serving cell of the terminal, the signal quality of the inter-frequency cell is measured.

[0063] The cell reselection is performed based on the signal quality measurement results of the inter-frequency cell.

[0064] The first threshold here can be a signal threshold.

[0065] The signal quality refers to the cell signal quality, including but not limited to: the received signal strength, received signal power, or signal-to-interference-plus-noise ratio of the terminal.

[0066] If the signal quality of the serving cell is greater than the first threshold, it means that the signal quality of the serving cell is good when the terminal performs cell reselection, and cell reselection is unnecessary unless required. Cell reselection is determined based on the signal quality measurement results.

[0067] The TA priority here can be either the priority indicated by the aforementioned first priority indication information or the priority indicated by the second priority indication information.

[0068] Inter-frequency cells here include, but are not limited to: inter-frequency cells within the same system and / or inter-frequency cells in different systems.

[0069] Cells with different frequencies within the same system are cells that support different frequency points within the same communication system.

[0070] The same communication system here can refer to systems that use the same communication standard. For example, 3G, 4G, or 5G are different communication systems.

[0071] Different systems typically use different frequencies, so cells from different systems are all cells from different frequencies.

[0072] In some embodiments, the method further includes:

[0073] When there is no TA priority of the inter-frequency cell to which the inter-frequency cell belongs that is higher than the TA priority of the serving cell to which the terminal belongs, the signal quality measurement of the inter-frequency cell is not performed.

[0074] If there are no neighboring cells with a higher TA priority than the serving cell, then signal quality measurement of inter-frequency cells is not required, thereby reducing unnecessary signal quality measurement of inter-frequency signals.

[0075] In some embodiments, S120 may include:

[0076] For the reselection of intra-system inter-frequency cells and intra-system intra-frequency cells, the signal quality of intra-system inter-frequency cells and intra-system intra-frequency cells with the same TA priority is determined according to the priority information;

[0077] The cell with the highest signal quality in the same system but at a different frequency or the same system and at the same frequency is identified as the target cell for cell reselection.

[0078] In some cases, the neighboring cells of the serving cell may also include cells with the same system and frequency.

[0079] Cells with the same frequency in the same system are cells that support the same frequency point within the same communication system.

[0080] In this embodiment, neighboring cells within the same system are selected first. Therefore, for cell reselection between cells with different frequencies within the same system and cells with different frequencies within the same system, when it is determined that the TA priority of a cell within the same system (including: cells with the same frequency within the same system and / or cells with different frequencies within the same system) is higher than that of the serving cell, the cell with the highest signal quality among the cells with different frequencies within the same system or cells with the same frequency within the same system will be selected as the target cell for cell reselection.

[0081] Prioritizing the selection of cells within the same system can reduce the frequency of terminal switching between different communication systems, thereby reducing the problems that may easily occur during handover intervals when switching between different systems.

[0082] In some embodiments, S120 may include:

[0083] For the reselection of intra-system inter-frequency cells, intra-system intra-frequency cells, and inter-system cells, based on the priority information, it is determined whether there is a cell among the intra-system inter-frequency cells, intra-system intra-frequency cells, and inter-system cells whose combined priority is higher than that of the serving cell of the terminal;

[0084] When there is a cell with a higher TA priority than the serving cell of the terminal, the cell with a higher TA priority than the serving cell of the terminal and a signal quality higher than the second threshold is determined as the target cell for cell reselection.

[0085] The second threshold here can be equal to, but is not limited to, the aforementioned first threshold. For example, the second threshold can be greater than or less than the first threshold.

[0086] If the second threshold is slightly lower than the first threshold, then if a neighboring cell with a higher TA priority than the serving cell appears, even if the signal quality is slightly worse than that of the serving cell, the corresponding neighboring cell will be given priority to ensure that the target cell for UE reselection provides the network slice required by the terminal or the network slice supported by the terminal as much as possible.

[0087] In some embodiments, performing cell reselection based on the priority information includes:

[0088] For the reselection of intra-system inter-frequency cells, intra-system intra-frequency cells, and inter-system cells, based on the priority information, it is determined whether there are cells among intra-system inter-frequency cells, intra-system intra-frequency cells, and inter-system cells whose combined priority of TA is higher than or equal to that of the serving cell of the terminal.

[0089] When there is no cell with a TA priority higher than or equal to that of the serving cell of the terminal, if the signal quality of the serving cell of the terminal is lower than the third threshold, and there are cells with signal quality higher than the fourth threshold among the intra-system inter-frequency cells, intra-system intra-frequency cells, and inter-system cells, the cell with signal quality higher than the fourth threshold shall be used as the target cell for cell reselection.

[0090] The fourth threshold here can be greater than the third threshold; if there are neighboring cells other than the serving cell at this time, for example, the signal quality of the same-frequency cell in the same system, the same-frequency cell in the same system, and the different cell is higher than the fourth threshold, the cell with the signal quality higher than the fourth threshold can be used as the target cell for cell reselection.

[0091] Of course, the fourth threshold being greater than the third threshold here is just an example. In actual implementation, it is not limited to the fourth threshold being greater than the third threshold; the fourth threshold can also be equal to the third threshold.

[0092] In some embodiments, S120 may include:

[0093] When the signal quality of the serving cell of the terminal is greater than the fifth threshold, the priority information is used to determine whether the TA priority of the intra-system inter-frequency cell and the inter-system cell is higher than the TA priority of the serving cell of the terminal.

[0094] When the TA priority of the intra-system inter-frequency cell and the inter-system cell is higher than the TA priority of the serving cell of the terminal, the signal quality of the intra-system inter-frequency cell and the inter-system cell is measured; based on the result of the signal quality measurement, the intra-system inter-frequency cell and the inter-system cell are selected as the target cells for cell reselection.

[0095] When the signal quality of the serving cell of the terminal is greater than the fifth threshold, it indicates that the service quality of the serving cell is good and stable enough. The fifth threshold here can be equal to any one of the aforementioned first, second, third, and fourth thresholds.

[0096] In this embodiment of the application, if the signal quality of the serving cell is greater than the fifth threshold, it will still determine whether there are cells with different frequencies in the same system and cells with different systems whose TA priority is higher than the TA priority of the serving cell based on the TA priority information. If so, signal quality measurement is required; otherwise, signal quality measurement is not performed, thereby reducing unnecessary signal quality measurement and reducing the power consumption of the terminal.

[0097] In some embodiments, the method further includes:

[0098] When the TA priority of a cell in the same system but at a different frequency or a cell in a different system is lower than the TA priority of the serving cell of the terminal, signal quality measurement of the cell in the same system but at a different frequency or a cell in a different system is not performed.

[0099] Thus, if the TA priority of a cell in the same system but with a different frequency or a cell in a different system is lower than the TA priority of the serving cell, then no inter-frequency signal measurement will be performed. Such inter-frequency signals include, but are not limited to, signal quality measurements of cells in the same system but with different frequency or cells in a different system.

[0100] In some embodiments, such as Figure 5 As shown, the method further includes:

[0101] S510: Receive system information broadcast by the serving cell of the terminal;

[0102] S520: Determine the TA to which the neighboring cell belongs based on the TA information carried by the system information; wherein, the priority information at least indicates the TA priority of the TA to which the neighboring cell belongs.

[0103] In this embodiment of the application, the system message broadcast within the serving cell will also carry the TA information of the TA to which the neighboring cell belongs, so that the TA of the neighboring cell can be known, so as to facilitate the terminal to determine the priority information of the TA to which the neighboring cell belongs.

[0104] In some embodiments, the neighboring cells include at least one of the following: cells with the same frequency in the same system, cells with different frequencies in the same system, and cells with different systems.

[0105] The system information received from the serving cell broadcast by the terminal includes:

[0106] The system message received from the serving cell broadcast by the terminal includes at least one of the following:

[0107] Receive a cell reselection system message broadcast by the serving cell, wherein the cell reselection message carries the TA information of the cell in the same system and frequency.

[0108] Receive intra-system inter-frequency cell reselection system messages broadcast by the serving cell, wherein the intra-system inter-frequency cell reselection messages carry TA information of intra-system inter-frequency cells;

[0109] The system receives inter-system cell reselection system messages broadcast by the serving cell, wherein the inter-system cell reselection system messages carry TA information of the inter-system cells.

[0110] The TA information here can indicate the TA of a neighboring cell.

[0111] The TA information includes, but is not limited to, the TA identifier.

[0112] In some embodiments, performing cell reselection based on the priority information includes:

[0113] Based on the priority information, the intra-system inter-frequency cell corresponding to the TA information carried by the system message is determined as a candidate cell for cell reselection;

[0114] And / or,

[0115] Based on the priority information, the inter-system cell corresponding to the TA information carried in the system message is determined as a candidate cell for cell reselection.

[0116] Of course, in some embodiments, the step of performing cell reselection based on the priority information includes: determining, based on the priority information, the same-system, same-frequency cell corresponding to the TA information carried in the system message as a candidate cell for cell reselection.

[0117] In other embodiments, when performing cell reselection, cells with the same frequency and system are defaulted to being candidate cells for cell reselection.

[0118] Which neighboring cells need to be reselected based on the priority information of the TA in this application? In this embodiment, it is necessary to consider which neighboring cells' TA information is carried in the system message. If the TA information of a certain neighboring cell is not carried in the system message of the serving cell, cell reselection can be performed according to frequency priority or cell priority, rather than according to the TA priority information in this embodiment.

[0119] The selection of which cells to choose as candidate cells for cell reselection based on TA priority information is determined by the system messages sent by the serving cell, which contain slice information for same-system and same-frequency cells, same-system and different-frequency cells, and different-system cells. This reduces the risk of reselecting to an unsuitable cell due to cell reselection across all cells.

[0120] In some embodiments, the method further includes:

[0121] The terminal receives a first indication sent by the serving cell of the terminal; wherein the first indication is used to indicate whether a system message broadcast in the serving cell of the terminal can carry the TA information;

[0122] The step of determining the TA of a neighboring cell based on the TA information carried by the system information includes:

[0123] When the first instruction is received and the system message does not carry the TA information of the neighboring cell, it is determined that the neighboring cell belongs to the same TA as the serving cell of the terminal.

[0124] Even if the terminal receives the first instruction, the system message received within the serving cell may or may not carry TA information. If the first instruction is received without TA information, it is determined that the network slices supported by the frequency of the neighboring cell are the same as those supported by the frequency of the serving cell. If the system message carries TA information, the TA information of the network slices supported by the frequency of the neighboring cell is determined based on the TA information.

[0125] In some embodiments, the method further includes:

[0126] The terminal receives a second indication sent by its serving cell, wherein the second indication is used to indicate that the serving cell of the terminal and the neighboring cell belong to different TAs;

[0127] When the first instruction is received, the second instruction is not received, and the system message does not carry the TA information of the neighboring cell, it is determined that the neighboring cell belongs to the same TA as the serving cell of the terminal.

[0128] In some embodiments, a second indication is also broadcast within the serving cell. The second indication is information indicating whether the serving cell and neighboring cells belong to different TAs.

[0129] If a first instruction is received but a second instruction is not received, and the system message does not carry TA information of the neighboring cell, then it is determined that the neighboring cell and the serving cell of the terminal support the same network slice on the same frequency.

[0130] In some embodiments, if a second indication is not received, it may be assumed that the network slices supported by the frequency points of the neighboring cell are the same as those supported by the frequency points of the serving cell. In some embodiments, the first indication and / or the second indication may each contain only one bit and may be broadcast in different time messages.

[0131] In some embodiments, the priority information for receiving the tracking area (TA) includes:

[0132] The priority information is received during the TAU or RAU of the terminal.

[0133] The priority information is received during the terminal's Tracking Area Update (TAU) or Radio Access Network Area Update (RAU).

[0134] TAU updates involve updates to the core network area, while RAU updates involve updates to the radio network area. Generally, the Track Area (TA) corresponding to the TAU is larger than the Notification Area (NA) corresponding to the RAU.

[0135] During TAU or RAU, priority information is received so that when cell reselection is involved in the TA or notification area, this priority information can be used to achieve cell reselection.

[0136] For example, the priority information is carried in the completion message or confirmation message of TAU or RAU, so that the terminal has completed the reception of the priority information when it receives the completion message or confirmation message of TAU or RAU.

[0137] In some embodiments, the priority information for receiving the tracking area (TA) includes:

[0138] When the terminal releases the Radio Resource Control (RRC) connection, it receives RRC release information carrying the priority information.

[0139] When the terminal releases the Radio Resource Control (RRC) connection, it receives RRC release information carrying the first priority information.

[0140] In some embodiments, the terminal releases the RRC connection via an RRC connection release message, thereby exiting the connected state and entering the idle or inactive state. Upon re-entering the connected state, cell reselection will occur, allowing for timely selection of a cell associated with the network slice based on the first priority information carried in the RRC connection release message.

[0141] In this embodiment, the priority information of the TA is not sent through a dedicated message, but is received using information already used in the existing process. This approach offers strong compatibility with existing technologies and reduces unnecessary reception by the terminal. Furthermore, receiving priority information in the TAU, RAU, and connection release messages allows it to be immediately used during the next cell reselection, thereby reducing delays.

[0142] like Figure 6 As shown, this embodiment provides an information transmission method, which is applied in a base station and includes:

[0143] S610: Send the priority information of TA, wherein the priority information is used for cell reselection of the terminal.

[0144] The base station in this application embodiment can be a 3G base station, a 4G base station, a 5G base station, or any subsequent generation or multiple generations of base stations after 5G base stations.

[0145] In this embodiment of the application, the base station will send the priority information of the TA. After the priority information of the TA is sent to the terminal, the terminal can perform cell reselection.

[0146] In this embodiment of the application, the priority information of TA here can be priority information at the UE level, that is, different terminals receive different priority information.

[0147] In some embodiments, the priority information includes:

[0148] The first type of priority indication information indicates the first priority among the TA priorities; the first priority is the priority of the TA itself.

[0149] In some embodiments, when the TA priority of the first TA is higher than the TA priority of the second TA, the priority of the frequency points supported by the first TA is higher than the priority of the frequency points supported by the second TA.

[0150] The higher the priority of a TA, the higher the priority of the frequency points supported by that TA.

[0151] In some embodiments, the priority information includes:

[0152] The second type of priority indication information indicates the second priority in the TA priority; the second priority is the priority of the TA and the frequency point combination supported by the TA.

[0153] The second type of priority indication information indicates the priority of the TA and the frequency combination supported by the TA.

[0154] In some embodiments, the method further includes:

[0155] A first indication is broadcast within the serving cell, the first indication being used to indicate whether a system message broadcast within the serving cell of the terminal can carry the TA information.

[0156] In this embodiment of the application, a first instruction is broadcast within the serving cell to inform the terminal whether the system message of the serving cell will carry TA information of neighboring cells.

[0157] For example, the priority information for issuing the TA includes:

[0158] According to the first instruction, when the serving cell of the terminal and the neighboring cell belong to different TAs, a system message carrying the TA information is sent. The priority information at least indicates the TA priority of the TA corresponding to the broadcast TA information.

[0159] Terminals residing in different cells serve different cells.

[0160] If the serving cell and the neighboring cell belong to different TAs, the TA information can be carried in a system message to specifically indicate the TA of the neighboring cell.

[0161] If the serving cell and the neighboring cell belong to the same TA, the TA information does not need to be carried in the system message, thereby reducing the bit overhead of the system message within the serving cell.

[0162] In some embodiments, the sending of the system message carrying the TA information includes:

[0163] The same-system, same-frequency cell reselection system message broadcast within the serving cell, wherein the same-system, same-frequency cell reselection message carries the TA information of the same-system, same-frequency cell;

[0164] The intra-system inter-frequency cell reselection system message broadcast within the serving cell, wherein the intra-system inter-frequency cell reselection message carries TA information of the intra-system inter-frequency cell;

[0165] The inter-system cell reselection system message broadcast within the serving cell carries the TA information of the inter-system cell.

[0166] In some embodiments, the intra-system, intra-frequency cell reselection system message includes, but is not limited to, System Information Block (SIB) 3. The intra-system, inter-frequency cell reselection system message may include, but is not limited to, SIB4. The inter-system cell reselection system message includes, but is not limited to, SIB5.

[0167] In some embodiments, the priority information for issuing the TA includes:

[0168] According to the first instruction, if the serving cell of the terminal and the neighboring cell belong to the same TA, the TA information is not carried in the system message. The priority information at least indicates the TA priority of the TA to which the neighboring cell belongs.

[0169] In some embodiments, the method further includes:

[0170] A second instruction is broadcast within the serving cell, wherein the second instruction is used to indicate that the serving cell of the terminal and the neighboring cell belong to different TAs; the system message is used to carry the TA information after the first instruction and the second instruction are broadcast.

[0171] In some embodiments, S610 may include: sending the priority information when the terminal is in TAU or RAU.

[0172] The priority information is issued during TAU and RAU processes instead of using dedicated signaling, which is highly compatible with related technologies and saves signaling overhead.

[0173] In some other embodiments, S610 may include: when the terminal releases the RRC connection, sending RRC release information carrying the priority information.

[0174] When the terminal releases the RRC connection and switches from the connected state to the idle state or the inactive state, it receives an RRC release message, from which the first priority information can be obtained.

[0175] like Figure 7 As shown, this embodiment provides a cell reselection device, which is applied in a terminal and includes:

[0176] The first receiving module 710 is configured to receive priority information of the tracking area TA;

[0177] The cell reselection module 720 is configured to perform cell reselection based on the priority information.

[0178] In some embodiments, the first receiving module 710 and the cell reselection module 720 may be program modules, which, after being executed by the processor, can receive first priority information and cell reselection.

[0179] In some embodiments, the first receiving module 710 and the reselection module 720 may be a hardware-software hybrid module; the hardware-software hybrid module may include various programmable arrays; the programmable array includes, but is not limited to, complex programmable arrays or field-programmable arrays.

[0180] In some embodiments, the first receiving module 710 and the reselection module 720 may further include a pure hardware module. The pure hardware module may include an application-specific integrated circuit (ASIC).

[0181] In some embodiments, the priority information includes:

[0182] The first type of priority indication information indicates the first priority among the TA priorities; the first priority is the priority of the TA itself.

[0183] In some embodiments, when the TA priority of the first TA is higher than the TA priority of the second TA, the priority of the frequency points supported by the first TA is higher than the priority of the frequency points supported by the second TA.

[0184] In some embodiments, the priority information includes:

[0185] The second type of priority indication information indicates the second priority in the TA priority; the second priority is the priority of the TA and the frequency point combination supported by the TA.

[0186] In some embodiments, the cell reselection module 720 is configured to, when the signal quality of the serving cell of the terminal is greater than a first threshold, determine, based on the priority information, whether there exists a different frequency cell whose TA priority is higher than that of the serving cell's TA priority; when there exists a different frequency cell whose TA priority is higher than that of the serving cell's TA priority, perform a signal quality measurement of the different frequency cell; and perform cell reselection based on the result of the signal quality measurement of the different frequency cell.

[0187] In some embodiments, the apparatus further includes:

[0188] The first measurement module is configured to not perform signal quality measurement of the inter-frequency cell when there is no inter-frequency cell whose TA priority is higher than that of the serving cell of the terminal.

[0189] In some embodiments, the cell reselection module 720 is configured to reselect intra-system inter-frequency cells and intra-system intra-frequency cells, determine the signal quality of intra-system inter-frequency cells and intra-system intra-frequency cells with the same TA priority based on priority information, and determine the intra-system inter-frequency cell or intra-system intra-frequency cell with the highest signal quality as the target cell for cell reselection.

[0190] In some embodiments, the cell reselection module 720 is configured to, for cell reselection within the same system but different frequencies, within the same system but the same frequency, and between different systems, determine, based on the priority information, whether there exists a cell among the same system but different frequencies, within the same system but the same frequency, and between different systems that has a higher TA priority than the TA priority of the serving cell of the terminal; when there exists a cell with a higher TA priority than the serving cell of the terminal, determine the cell with a higher TA priority than the serving cell of the terminal and a signal quality higher than a second threshold as the target cell for cell reselection.

[0191] In some embodiments, the cell reselection module 720 is configured to, for reselection of intra-system inter-frequency cells, intra-system intra-frequency cells, and inter-system cells, determine, based on the priority information, whether there exists a cell among the intra-system inter-frequency cells, intra-system intra-frequency cells, and inter-system cells whose TA priority is higher than or equal to the TA priority of the serving cell of the terminal; when there is no cell with a TA priority higher than or equal to the serving cell of the terminal, if the signal quality of the serving cell of the terminal is lower than a third threshold, and there exists a cell among the intra-system inter-frequency cells, intra-system intra-frequency cells, and inter-system cells whose signal quality is higher than a fourth threshold, then the cell with signal quality higher than the fourth threshold is selected as the target cell for cell reselection.

[0192] In some embodiments, the cell reselection module 720 is configured to: when the signal quality of the serving cell of the terminal is greater than a fifth threshold, determine whether the TA priority of the intra-system inter-frequency cell and the inter-system cell is higher than the TA priority of the serving cell of the terminal based on the priority information; when the combined priority of the intra-system inter-frequency cell and the inter-system cell is higher than the TA priority of the serving cell of the terminal, perform signal quality measurement of the intra-system inter-frequency cell and the inter-system cell; and select the intra-system inter-frequency cell and the inter-system cell as the target cells for cell reselection based on the result of the signal quality measurement.

[0193] In some embodiments, the apparatus further includes:

[0194] The second measurement module is configured to not perform signal quality measurement of the intra-system inter-frequency cell or the inter-system cell when the TA priority of the intra-system inter-frequency cell or the inter-system cell is lower than the TA priority of the serving cell of the terminal.

[0195] In some embodiments, the first receiving module 710 is further configured to receive system information broadcast by the serving cell of the terminal;

[0196] The device further includes:

[0197] The determination module is configured to determine the TA (Transmission Association) of a neighboring cell based on the TA information carried in the system information. The priority information at least indicates the TA priority of the TA to which the neighboring cell belongs.

[0198] In some embodiments, the neighboring cells include at least one of: cells with the same frequency in the same system, cells with different frequencies in the same system, and cells with different systems;

[0199] The first receiving module 710 is configured to receive system messages broadcast by the serving cell of the terminal, including at least one of the following:

[0200] Receive a cell reselection system message broadcast by the serving cell, wherein the cell reselection message carries the TA information of the cell in the same system and frequency.

[0201] Receive intra-system inter-frequency cell reselection system messages broadcast by the serving cell, wherein the intra-system inter-frequency cell reselection messages carry TA information of intra-system inter-frequency cells;

[0202] The system receives inter-system cell reselection system messages broadcast by the serving cell, wherein the inter-system cell reselection system messages carry TA information of the inter-system cells.

[0203] In some embodiments, the cell reselection module 720 is configured to: determine, based on the priority information, the intra-system inter-frequency cell corresponding to the TA information carried in the system message as a candidate cell for cell reselection;

[0204] And / or,

[0205] Based on the priority information, the inter-system cell corresponding to the TA information carried in the system message is determined as a candidate cell for cell reselection.

[0206] In some embodiments, the first receiving module 710 is further configured to receive a first indication sent by the serving cell of the terminal; wherein the first indication is used to indicate whether a system message broadcast in the serving cell of the terminal can carry the TA information;

[0207] The determining module is configured to determine that the neighboring cell and the serving cell of the terminal belong to the same TA when the first indication is received and the system message does not carry the TA information of the neighboring cell.

[0208] In some embodiments, the first receiving module 710 is configured to receive a second indication sent by the serving cell of the terminal, wherein the second indication is used to indicate that the serving cell of the terminal and the neighboring cell belong to different TAs;

[0209] The determining module is configured to determine that the neighboring cell and the serving cell of the terminal belong to the same TA when the first indication is received, the second indication is not received, and the system message does not carry the TA information of the neighboring cell.

[0210] In some embodiments, the first receiving module 710 is configured to receive the priority information when the terminal updates its Tracking Area Unit (TAU) or Radio Access Network Notification Area (RAU).

[0211] In some embodiments, the first receiving module 710 is configured to receive RRC release information carrying the priority information when the terminal releases the Radio Resource Control (RRC) connection.

[0212] like Figure 8 As shown, this embodiment provides an information processing device, which is applied in a base station and includes:

[0213] The delivery module 810 is configured to deliver priority information for the TA, wherein the priority information is used for cell reselection of the terminal.

[0214] In some embodiments, the sending module 810 may be a program module, which, after being executed by the processor, can send first priority information.

[0215] In some embodiments, the sending module 810 may be a hardware-software hybrid module; the hardware-software hybrid module may include various programmable arrays; the programmable array includes, but is not limited to, complex programmable arrays or field-programmable arrays.

[0216] In some embodiments, the distribution module 810 may further include a pure hardware module. The pure hardware module may include an application-specific integrated circuit (ASIC).

[0217] In some embodiments, the priority information includes:

[0218] The first type of priority indication information indicates the first priority among the TA priorities; the first priority is the priority of the TA.

[0219] In some embodiments, when the TA priority of the first TA is higher than the TA priority of the second TA, the priority of the frequency points supported by the first TA is higher than the priority of the frequency points supported by the second TA.

[0220] In some embodiments, the priority information includes:

[0221] The second type of priority indication information indicates the second priority in the TA priority; the second priority is the priority of the TA and the frequency point combination supported by the TA.

[0222] In some embodiments, the apparatus further includes:

[0223] The broadcast module is configured to broadcast a first indication within the serving cell. This first indication indicates whether a system message broadcast within the serving cell of the terminal can carry the TA information. The priority information at least indicates the TA priority of the TA corresponding to the TA information.

[0224] In some embodiments, the sending module 810 is configured to send a system message carrying the TA information when the serving cell of the terminal and the TA of the neighboring cell belong to different TAs, according to the first instruction. The priority information at least indicates the TA priority of the TA of the neighboring cell.

[0225] In some embodiments, the sending module 810 is configured to broadcast a same-system, same-frequency cell reselection system message within the serving cell, wherein the same-system, same-frequency cell reselection message carries TA information of the same-system, same-frequency cell; broadcast a same-system, different-frequency cell reselection system message within the serving cell, wherein the same-system, different-frequency cell reselection message carries TA information of the same-system, different-frequency cell; and broadcast a different-system cell reselection system message within the serving cell, wherein the different-system cell reselection system message carries TA information of the different-system cell.

[0226] In some embodiments, the sending module 810 is configured to, according to the first instruction, not carry the TA information in the system message if the serving cell and the neighboring cell of the terminal belong to the same TA.

[0227] In some embodiments, the broadcast module is further configured to broadcast a second indication within the serving cell, wherein the second indication indicates that the serving cell of the terminal and the neighboring cells belong to different TAs. The system message is used to carry the TA information after the first and second indications are broadcast.

[0228] In some embodiments, the sending module 810 is configured to send the priority information when the terminal is in TAU or RAU.

[0229] In some embodiments, the sending module 810 is configured to send RRC release information carrying the priority information when the terminal releases the RRC connection.

[0230] The following provides one or more examples in conjunction with any of the above embodiments:

[0231] The UE receives the Tracking Area (TA) priority from the base station via dedicated signaling.

[0232] The priority of the TA may also include the priority of the TA and the frequency combination supported by the TA. The UE determines the cell reselection priority based on the priority information of the TA or the priority information of the TA and the frequency combination, and then performs cell reselection.

[0233] Based on the priority information of the TA (Transmission Aspect) (TA), the priority of the TA can be obtained, for example, TA1>TA2>TA3. The priority information of the TA and frequency point combination is: for example, TA1+f1>TA2+f1=TA1+f2>TA2+f2. The priority of the TA and the frequency point combination supported by the TA is: for example, TA3>TA1 f1>TA2 f2>TA1 f2>TA2 f1>f3. In this example, if only the TA is indicated without a corresponding frequency point, such as TA3, it means it applies to all frequency points under that TA; if only the frequency point is indicated without a corresponding TA, such as f3, it means that the priority of that frequency point does not need to consider the TA factor.

[0234] In some cases, for intra-freq and inter-freq cell reselection within the same system, for cells with the same freq+TA priority, the UE sorts the cells by signal quality before performing cell reselection. The freq+TA priority refers to the priority of the TA and the frequency points supported by the TA in the aforementioned embodiments.

[0235] In some cases, for intra-freq, inter-freq, and inter-RAT cell reselection, if the priority of the freq+TA is higher than that of the serving cell's freq+TA, and if a cell under the freq+TA has a signal quality higher than a certain threshold, the UE will reselect to the freq+TA. The freq+TA indicates the corresponding TA and the frequency frequencies supported by that TA. A TA may support one or more frequency frequencies. The same TA may have the same or different priorities when combined with different frequency frequencies.

[0236] In some cases, for intra-freq, inter-freq, and inter-RAT cell reselection, if the priority of the freq+TA is lower than that of the serving cell, if the signal quality of the serving cell is less than a certain threshold, and there is a cell under the freq+TA whose signal quality is higher than a certain threshold, the UE will reselect to the freq+TA.

[0237] In some cases, the UE receives frequency point and / or TA information of neighboring cells of the frequency point broadcast by the serving cell. The UE uses this information to determine the TA corresponding to the frequency point and / or neighboring cells of the frequency point when performing cell reselection.

[0238] For intra-frequency cells within the same system, such as the intraFreqNeighCellList in SIB3, the TA corresponding to the neighbor cell is indicated.

[0239] For inter-frequency cells within the same system, the Transport Address (TA) corresponding to that frequency point (freq) is indicated in the InterFreqCarrierFreqInfo information of SIB4, or the TA corresponding to neighbor cells is indicated in the InterFreqNeighCellInfo information within the InterFreqCarrierFreqInfo information. Indicating the TA corresponding to a frequency freq means that the TAs of all neighbor cells under that frequency are the same.

[0240] For inter-RAT, for example, in SIB5, the TA corresponding to the frequency is indicated in the carrier frequency information (CarrierFreqEUTRA), or the TA corresponding to the neighbor cell is indicated in the neighbor cell frequency information (EUTRA-FreqNeighCellInfo) in CarrierFreqEUTRA.

[0241] The UE can obtain the neighboring cells of the TA through system messages, and the UE no longer needs to obtain the TA by reading the system messages of the neighboring cells.

[0242] The UE only performs inter-freq / inter-RAT cell reselection on the frequency points broadcast by the system.

[0243] In some cases, if the signal quality of the serving cell is greater than a certain threshold, and none of the neighboring cells and their corresponding TAs indicated in the system message have a higher priority than the serving cell and its corresponding TA, the UE may not perform intra-freq measurements; otherwise, the UE needs to perform intra-freq measurements.

[0244] In some cases, if the signal quality of the serving cell is greater than a certain threshold, and there are no other frequency points and their corresponding TAs with higher priority than the serving cell's corresponding frequency point + TA among the inter-freq or inter-RAT frequency points and their corresponding TAs indicated in the system message, the UE may not perform inter-freq or inter-RAT measurements on that frequency point.

[0245] In some cases, the UE receives an indication from the base station as to whether broadcast TA is supported. The UE uses this indication, along with whether there is TA information in the frequency point and / or neighboring cells of the frequency point, to determine the TA corresponding to the frequency point and / or neighboring cells of the frequency point.

[0246] In some cases, if the base station broadcasts an indication that it supports broadcasting a TA, and if the frequency point indicated in the system message (if no neighboring cell is indicated in the frequency point) does not indicate a corresponding TA, or if neither the neighboring cell nor the frequency point indicated in the system message indicates a corresponding TA, then it is assumed that the frequency point or neighboring cell has the same TA as the serving cell.

[0247] In some cases, if the base station broadcast indication does not support broadcast TA, the UE cannot determine the frequency point and the TA of neighboring cells through system messages.

[0248] In some cases, when the UE is in TAU / RAU, the network sends updated TA (Tracking Area) priority or priority information for the combination of TA and frequency point.

[0249] The update can be sent via an RRC release message.

[0250] In some cases, the UE receives an indication broadcast by the base station regarding the existence of neighboring cells whose TA differs from the serving cell's TA. If the indication does not exist, the UE assumes that all neighboring cells have the same TA as the serving cell. If the indication exists, and if the frequency point indicated in the system message (if no neighboring cells are indicated for that frequency point) does not have a corresponding TA, or if the neighboring cells and / or frequency point indicated in the system message do not have a corresponding TA, then the UE assumes that the frequency point or neighboring cells have the same TA as the serving cell.

[0251] In some cases, if the base station does not broadcast an indication of whether there is a neighboring cell whose TA differs from the serving cell's TA, the UE cannot determine the frequency point and the neighboring cell's TA through system messages.

[0252] Reference Figure 9 The terminal 800 shown in this embodiment is a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, etc.

[0253] Reference Figure 9 Terminal 800 may include one or more of the following components: processing component 802, memory 804, power supply component 806, multimedia component 808, audio component 810, input / output (I / O) interface 812, sensor component 814, and communication component 816.

[0254] Processing component 802 typically controls the overall operation of terminal 800, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the methods described above. Furthermore, processing component 802 may include one or more modules to facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.

[0255] Memory 804 is configured to store various types of data to support the operation of device 800. Examples of this data include instructions for any application or method operating on terminal 800, contact data, phonebook data, messages, pictures, videos, etc. Memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0256] Power supply component 806 provides power to various components of terminal 800. Power supply component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to terminal 800.

[0257] Multimedia component 808 includes a screen that provides an output interface between the terminal 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 808 includes a front-facing camera and / or a rear-facing camera. When the device 800 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0258] Audio component 810 is configured to output and / or input audio signals. For example, audio component 810 includes a microphone (MIC) configured to receive external audio signals when terminal 800 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 804 or transmitted via communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

[0259] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0260] Sensor assembly 814 includes one or more sensors for providing status assessments of various aspects of terminal 800. For example, sensor assembly 814 can detect the on / off state of device 800, the relative positioning of components such as the display and keypad of terminal 800, changes in position of terminal 800 or a component of terminal 800, the presence or absence of user contact with terminal 800, orientation or acceleration / deceleration of terminal 800, and temperature changes of terminal 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 814 may also include an accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor.

[0261] Communication component 816 is configured to facilitate wired or wireless communication between terminal 800 and other devices. Terminal 800 can access wireless networks based on communication standards, such as Wi-Fi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 816 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 816 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0262] In an exemplary embodiment, terminal 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0263] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, which can be executed by a processor 820 of a terminal 800 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0264] This terminal can be used to implement the aforementioned DCI transmission method, for example, such as... Figure 2 and / or Figure 6 The DCI transmission method described above.

[0265] Figure 10 This is a block diagram illustrating a base station 900 according to an exemplary embodiment. For example, the base station 900 may be provided as a network-side device. (Refer to...) Figure 10 The base station 900 includes a processing component 922, which further includes one or more processors, and memory resources represented by a memory 932 for storing instructions executable by the processing component 922, such as application programs. The application programs stored in the memory 932 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 922 is configured to execute instructions to perform the cell reselection method or information transmission method provided in any of the foregoing embodiments, for example, such as... Figure 2 , Figure 3 and / or Figure 6 The method shown.

[0266] Base station 900 may also include a power supply component 926 configured to perform power management of base station 900, a wired or wireless network interface 950 configured to connect base station 900 to a network, and an input / output (I / O) interface 958. Base station 900 can operate on an operating system stored in memory 932, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or similar.

[0267] The wireless network interface 950 includes, but is not limited to, the antenna of the aforementioned communication device. Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0268] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

[0269] The request is subject to restrictions.

Claims

1. A cell reselection method, wherein, Applied in terminals, including: The terminal receives system information broadcast by the serving cell. Based on the TA information of the tracking area TA of the neighboring cell carried by the system information, the TA to which the neighboring cell belongs is determined; Receive priority information; the priority information includes the priority of the TA and frequency point combination; the priority of the TA and frequency point combination refers to the priority being set in combination with the TA and frequency point; Cell reselection is performed based on the priority information.

2. The method according to claim 1, wherein, The cell reselection process includes: for cells with the same TA and frequency point combination priority, the terminal sorts the cells according to signal quality and then performs cell reselection.

3. The method according to claim 1, wherein, The step of performing cell reselection based on the priority information includes: For the reselection of intra-system inter-frequency cells and intra-system intra-frequency cells, the signal quality of intra-system inter-frequency cells and intra-system intra-frequency cells with the same TA priority is determined according to the priority information; The cell with the highest signal quality in the same system but at a different frequency or the same system and at the same frequency is identified as the target cell for cell reselection.

4. The method according to claim 1, wherein, The step of performing cell reselection based on the priority information includes: For the reselection of intra-system inter-frequency cells, intra-system intra-frequency cells, and inter-system cells, based on the priority information, it is determined whether there are cells among intra-system inter-frequency cells, intra-system intra-frequency cells, and inter-system cells whose frequency point and TA combination priority is higher than that of the serving cell of the terminal. When there is a cell with a higher frequency and TA combination priority than the serving cell of the terminal, the cell with a higher frequency and TA combination priority and a signal quality higher than the threshold is determined as the target cell for cell reselection.

5. The method according to claim 1, wherein, The step of performing cell reselection based on the priority information includes: When the signal quality of the serving cell of the terminal is greater than the fifth threshold, the priority information is used to determine whether the TA priority of the intra-system inter-frequency cell and the inter-system cell is higher than the TA priority of the serving cell of the terminal. When the TA priority of the intra-system inter-frequency cell and the inter-system cell is higher than the TA priority of the serving cell of the terminal, the signal quality of the intra-system inter-frequency cell and the inter-system cell is measured. Based on the signal quality measurement results, the intra-system inter-frequency cell or the inter-system cell is selected as the target cell for cell reselection.

6. The method according to claim 1, wherein, The neighboring cells of the serving cell include at least one of the following: cells with the same frequency in the same system, cells with different frequencies in the same system, and cells with different systems; The system message received from the serving cell broadcast by the terminal includes at least one of the following: Receive a cell reselection system message broadcast by the serving cell, wherein the cell reselection message carries the TA information of the cell in the same system and frequency. Receive intra-system inter-frequency cell reselection system messages broadcast by the serving cell, wherein the intra-system inter-frequency cell reselection messages carry TA information of intra-system inter-frequency cells; The system receives inter-system cell reselection system messages broadcast by the serving cell, wherein the inter-system cell reselection system messages carry TA information of the inter-system cells.

7. The method according to claim 6, wherein, The step of performing cell reselection based on the priority information includes: Based on the priority information, the intra-system inter-frequency cell corresponding to the TA information carried by the system message is determined as a candidate cell for cell reselection; And / or, Based on the priority information, the inter-system cell corresponding to the TA information carried in the system message is determined as a candidate cell for cell reselection.

8. An information transmission method, wherein, Applied in base stations, including: Broadcast system information; the system information carries the TA information of the tracking area (TA) of the neighboring cell; Send priority information, wherein the priority information is used by the terminal to perform cell reselection; the priority information includes the priority of the combination of TA and frequency point; the priority of the combination of TA and frequency point refers to the priority being set in combination with TA and frequency point.

9. The method according to claim 8, wherein, The transmission priority information includes: Send a Radio Resource Control (RRC) release message carrying the priority information to the terminal.

10. The method according to claim 8 or 9, wherein, The broadcast system message includes at least one of the following: The same-system, same-frequency cell reselection system message broadcast within the serving cell of the terminal, wherein the same-system, same-frequency cell reselection message carries the TA information of the same-system, same-frequency cell; The intra-system inter-frequency cell reselection system message broadcast within the serving cell of the terminal, wherein the intra-system inter-frequency cell reselection message carries TA information of the intra-system inter-frequency cell; The inter-system cell reselection system message broadcast within the serving cell of the terminal, wherein the inter-system cell reselection system message carries the TA information of the inter-system cell.

11. A cell reselection device, wherein, Applied in terminals, including: The first receiving module is configured to receive system information broadcast by the serving cell of the terminal; receive priority information; the priority information includes the priority of the tracking area (TA) and frequency point combination; the priority of the TA and frequency point combination refers to the priority being set in combination with the TA and frequency point. The cell reselection module is configured to determine the TA of a neighboring cell based on the TA information of the TA of the neighboring cell carried in the system information; and to perform cell reselection based on the priority information.

12. The apparatus according to claim 11, wherein, The cell reselection process includes: for cells with the same TA and frequency point combination priority, the terminal sorts the cells according to signal quality and then performs cell reselection.

13. The apparatus according to claim 11, wherein, The reselection module is configured to reselect intra-system inter-frequency cells and intra-system intra-frequency cells, and to determine the signal quality of intra-system inter-frequency cells and intra-system intra-frequency cells with the same TA priority based on priority information. The cell with the highest signal quality in the same system but at a different frequency or the same system and at the same frequency is identified as the target cell for cell reselection.

14. The apparatus according to claim 11, wherein, The cell reselection module is configured to perform cell reselection for intra-system inter-frequency cells, intra-system intra-frequency cells, and inter-system cells. Based on the priority information, it determines whether there exists a cell among the intra-system inter-frequency cells, intra-system intra-frequency cells, and inter-system cells whose frequency point and TA combination priority is higher than that of the serving cell of the terminal. When there is a cell with a higher frequency point and TA combination priority than the serving cell of the terminal, the cell with a higher frequency point and TA combination priority and a signal quality higher than a threshold is determined as the target cell for cell reselection.

15. An information processing apparatus, wherein, Applied in base stations, including: The delivery module is configured to broadcast system information; the system information carries the TA information of the tracking area (TA) of the neighboring cell; and sends priority information, wherein the priority information is used for cell reselection by the terminal; the priority information includes the priority of the TA and frequency point combination; the priority of the TA and frequency point combination refers to the priority being set in combination with the TA and frequency point.

16. The apparatus according to claim 15, wherein, The sending module is configured to send a Radio Resource Control (RRC) release message carrying the priority information to the terminal.

17. A communication device, wherein, include: antenna; Memory; The processor, connected to the antenna and the memory respectively, is configured to control the antenna to transmit and receive wireless signals by executing an executable program stored in the memory, and is capable of performing the steps of the method as described in any one of claims 1 to 10.

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