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

Abstract

The embodiment of the invention provides a cell reselection method and device, an information transmission method and device, communication equipment and a storage medium. The cell reselection method applied to the terminal is applied to the terminal and comprises the following steps: receiving priority information of a tracking area (TA); and performing cell reselection according to the priority information.

Description

[0001] This application is a divisional application of the Chinese application with application number: 202080000150.6, application date: January 20, 2020, and title: “Cell Reselection, Information Transmission Method and Device, Communication Equipment and Storage Medium”. Technical Field

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

[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] When the terminal is moving, it will reselect the cell according to its location. However, sometimes the cell selected by the terminal cannot provide the network slice required by the terminal, resulting in the communication quality of the terminal not meeting expectations. Sometimes, the terminal will frequently reselect the cell due to network slicing. Summary of the invention

[0005] Embodiments of the present application provide a cell reselection method and apparatus, an information transmission method and apparatus, a communication device, and a storage medium.

[0006] A first aspect of an embodiment of the present 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 an embodiment of the present application provides an information transmission method, which is applied in a base station and includes:

[0008] Sending TA priority information, wherein the priority information is used for cell reselection of the terminal.

[0009] A third aspect of an embodiment of the present application provides a cell reselection device, which is applied to a terminal and includes:

[0010] A first receiving module is configured to receive priority information of a tracking area TA;

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

[0012] A fourth aspect of an embodiment of the present application provides an information processing device, which is applied to a base station and includes:

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

[0014] A fifth aspect of an embodiment of the present application provides a communication device, including:

[0015] antenna;

[0016] Memory;

[0017] The processor is connected to the antenna and the memory respectively, and is configured to control the antenna to receive and send wireless signals by executing an executable program stored in the memory, and is capable of executing the steps of any method of the first aspect or the second aspect mentioned above.

[0018] A sixth aspect of an embodiment of the present application provides a non-temporary computer-readable storage medium, wherein the non-temporary computer-readable storage medium stores an executable program, wherein when the executable program is executed by a processor, the steps of any method of the first aspect or the second aspect are implemented.

[0019] The method provided in the embodiment of the present application introduces the first priority information of the TA. When the terminal reselects a cell, it will reselect according to the priority information. Different TAs support different network slices. In this way, when the terminal reselects a cell, it will reselect the cell according to the priority information of the TA. This reduces the phenomenon that an inappropriate cell is selected based solely on the cell priority or frequency priority, and the communication quality does not meet the expectations due to the inability to provide the network slice required or supported by the terminal. This improves the communication quality and reduces unnecessary cell reselection of the terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a structural diagram of a wireless communication system provided in an embodiment of the present application;

[0021] Figure 2 is a schematic diagram of a network slice provided in an embodiment of the present application;

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

[0023] Figure 4 It is a flowchart of a cell reselection method provided in an embodiment of the present application;

[0024] Figure 5 It is a flowchart of a cell reselection method provided by the present application;

[0025] Figure 6 It is a flowchart of a cell reselection method provided by the present application;

[0026] Figure 7 It is a structural schematic diagram of a cell reselection device provided in an embodiment of the present application;

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

[0028] Fig. 9 is a schematic diagram of the structure of a terminal provided in an embodiment of the present application;

[0029] Fig.10 It is a structural diagram of a base station provided in an embodiment of the present application. DETAILED DESCRIPTION

[0030] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers 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 the embodiments of the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the embodiments of the present application as detailed in the appended claims.

[0031] The terms used in the disclosed embodiments are only for the purpose of describing specific embodiments and are not intended to limit the disclosed embodiments. The singular forms of "a", "said" and "the" used in the disclosed embodiments and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

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

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

[0034] Among them, the terminal 11 can be a device that provides voice and / or data connectivity to the user. The terminal 11 can communicate with one or more core networks via a radio access network (RAN). The terminal 11 can be an Internet of Things terminal, such as a sensor device, a mobile phone (or a "cellular" phone), and a computer with an Internet of Things terminal. For example, it can be a fixed, portable, pocket-sized, handheld, computer-built-in or vehicle-mounted device. For example, a station (STA), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, or a user equipment (UE). Alternatively, the terminal 11 can also be a device of an unmanned aerial vehicle. Alternatively, the terminal 11 can also be a vehicle-mounted device, for example, it can be a driving computer with wireless communication function, or a wireless communication device connected to an external driving computer. Alternatively, the terminal 11 may also be a roadside device, for example, a street lamp, a signal lamp or other roadside device with a wireless communication function.

[0035] The base station 12 may be a network-side device in a wireless communication system. The wireless communication system may be a fourth generation mobile communication technology (4G) system, also known as a long term evolution (LTE) system; or, the wireless communication system may be a 5G system, also known as a new radio (NR) system or a 5G NR system. Alternatively, the wireless communication system may be the next generation system of the 5G system. The access network in the 5G system may be referred to as NG-RAN (New Generation-Radio Access Network). Alternatively, an MTC system.

[0036] Among them, the base station 12 can be an evolved base station (eNB) adopted in the 4G system. Alternatively, the base station 12 can also be a base station (gNB) adopting a centralized distributed architecture in the 5G system. When the base station 12 adopts a centralized distributed architecture, it usually includes a centralized unit (CU) and at least two distributed units (DU). The centralized unit is provided with a protocol stack of a packet data convergence protocol (PDCP) layer, a radio link layer control protocol (RLC) layer, and a media access control (MAC) layer; the distributed unit is provided with a physical (Physical, PHY) layer protocol stack. The specific implementation method of the base station 12 is not limited in the embodiment of the present disclosure.

[0037] A wireless connection can be established between the base station 12 and the terminal 11 through 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, for example, the wireless air interface is a new air interface; or, the wireless air interface can also be a wireless air interface based on the next generation mobile communication network technology standard of 5G.

[0038] In some embodiments, E2E (End to End) connections may also be established between the terminals 11, such as V2V (vehicle to vehicle) communication, V2I (vehicle to Infrastructure) communication, and V2P (vehicle to pedestrian) communication in vehicle to everything (V2X) communication.

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

[0040] Several base stations 12 are respectively connected to a network management device 13. The network management device 13 may be a core network device in a wireless communication system. For example, the network management device 13 may be a mobility management entity (MME) in an evolved packet core (EPC). Alternatively, the network management device may 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 network side device (HSS). The embodiment of the present disclosure does not limit the implementation form of the network management device 13.

[0041] like Figure 2 As shown, some communication networks may provide network slices that support different types of services. Figure 2 As shown in the figure, three different service types (critical MTC type services, such as data from health monitoring equipment, massive MTC type services, such as meter reading services, and MBB type services, such as video services) are divided into three network slices, and the billing strategy, security strategy, and quality of service (QoS) strategy of each network slice may be different. 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 cell corresponding to the f1 frequency of TA1 and TA2 supports eMBB network slicing, the cell corresponding to the f2 frequency of TA3 supports eMBB and URLLC network slicing, and the cell corresponding to the f2 frequency of TA2 supports eMBB network slicing. For a UE that supports eMBB and URLLC slice network slicing, when it is in the cell corresponding to the f1 frequency of TA1, the network hopes that the priority of the f2 frequency is lower than that of the f1 frequency; 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 an updated frequency priority during the TAU. However, this does not actually solve the problem because the TAU occurs after the reselection, and the UE has selected the wrong frequency based on the previous frequency priority during the reselection. In view of this, Figure 4As shown, this example provides a cell reselection method, which is applied in a terminal and includes:

[0043] S110: receiving TA priority information;

[0044] S120: Perform cell reselection according to the priority information.

[0045] In the embodiment of the present application, the method can be applied to various terminals supporting network slicing, which may include: conventional terminals, IoT terminals, vehicle-mounted terminals or light terminals, etc. The conventional terminals may include mobile phones, etc., and for example, Long Term Evolution (LTE) terminals, etc.

[0046] In the embodiment of the present application, the priority information of the TA is: indication information related to the priority of the TA, for example, including but not limited to the priority information of the individual TA, the priority of the TA combined with the carrier or the supported network slice. Of course, this is only an example, and the specific implementation is not limited to this.

[0047] Usually, a TA includes multiple adjacently distributed cells.

[0048] After receiving the priority information of the TA, the terminal will reselect the cell according to the priority information of the TA. In this way, when different TAs are configured with different network slices, the selection of network slices can be taken into account according to the priority information of the TA. Therefore, when the terminal reselects the cell, it is not just reselected based on the cell priority or frequency priority alone. The reselected cell reduces the phenomenon that the communication quality does not meet the expectations due to the cell where the terminal resides not being able to provide the network slice required or supported by the terminal, thereby improving the communication quality and reducing unnecessary cell reselection of the terminal.

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

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

[0051] The first type of priority indication information here indicates the priority of the TA in the TA priority. The priority of the TA here is the priority information that describes the priority of the TA itself separately.

[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 point supported by the first TA is higher than the priority of the frequency point supported by the second TA.

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

[0054] The higher the priority of a frequency, the higher the priority of the network slice supported by the frequency.

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

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

[0057] In the embodiment of the present application, the priority information may also be second-type priority indication information, where the second-type priority information indicates the priority of the TA and the frequency combination supported by the TA.

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

[0059] Specifically, S120 may include: performing cell reselection according to the priority information of the TA, the signal quality of the serving cell and the signal quality of the neighboring cell. Generally, a cell with a high priority and good signal quality is selected as the resident cell of the terminal.

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

[0061] When the signal quality of the serving cell of the terminal is greater than the first threshold, determining, according to the priority information, whether there is a TA priority of the TA to which the inter-frequency cell belongs that is higher than the TA priority of the serving cell of the terminal;

[0062] When there is a TA priority of the TA to which the inter-frequency cell belongs that is higher than the TA priority of the serving cell of the terminal, measuring the signal quality of the inter-frequency cell;

[0063] The cell reselection is performed according to the signal quality measurement result of the inter-frequency cell.

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

[0065] The signal quality is the cell signal quality, including but not limited to: the received signal strength, received signal power or signal to interference and 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 is performing cell reselection, and cell reselection is unnecessary. Cell reselection needs to be determined based on the measurement result of the signal quality.

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

[0068] The hetero-frequency cells herein include but are not limited to: hetero-frequency cells in the same system and / or hetero-frequency cells in different systems.

[0069] Same-system different-frequency cells are cells that support different frequencies within the same communication system.

[0070] The same communication system here may be a system using the same communication standard, for example, a 3G system, a 4G system or a 5G system are different communication systems.

[0071] Different systems usually use different frequencies, so cells in different systems are all different-frequency cells.

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

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

[0074] When there is no neighboring cell with a TA priority higher than that of the serving cell, there is no need to perform signal quality measurement of the inter-frequency cell, thereby reducing unnecessary signal quality measurement of the inter-frequency signal.

[0075] In some embodiments, the S120 may include:

[0076] For reselection of cells with different frequencies in the same system and cells with same frequencies in the same system, determining signal qualities of cells with different frequencies in the same system and cells with same frequencies in the same system having the same TA priority according to the priority information;

[0077] The same-system-different-frequency cell or the same-system-same-frequency cell with the highest signal quality is determined as a target cell for cell reselection.

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

[0079] Same-system and same-frequency cells are cells that support the same frequency within the same communication system.

[0080] In the embodiment of the present application, the selection of neighboring cells of the same system is given priority. Therefore, firstly, for the reselection of cells of different frequencies in the same system and cells of different frequencies in the same system, when it is determined that the TA priority of cells of the same system (including cells of the same frequency in the same system and / or cells of different frequencies in the same system) is higher than that of the serving cell, the cells of different frequencies in the same system or cells of the same frequency in the same system with the highest signal quality will be selected as the target cells for cell reselection.

[0081] Giving priority to the selection of cells of the same system as much as possible can reduce the frequent switching of terminals between different communication systems, thereby reducing the problems that are prone to occur between switching gaps caused by switching between different systems.

[0082] In some embodiments, the S120 may include:

[0083] For the reselection of the same-system different-frequency cells, the same-system same-frequency cells and the different-system cells, determining, according to the priority information, whether there is a cell whose TA priority is higher than the combined priority of the serving cell of the terminal among the same-system different-frequency cells, the same-system same-frequency cells and the different-system cells;

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

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

[0086] If the second threshold is slightly smaller than the first threshold, if a neighboring cell with a higher TA priority than the serving cell appears, the corresponding neighboring cell will be given priority even if the signal quality is slightly worse than that of the serving cell, to ensure that the target cell reselected by the UE 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 according to the priority information includes:

[0088] For the reselection of the same-system different-frequency cells, the same-system same-frequency cells and the different-system cells, determining, according to the priority information, whether there is a cell whose TA priority is higher than or equal to the combined priority of the serving cell of the terminal among the same-system different-frequency cells, the same-system same-frequency cells and the different-system cells;

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

[0090] The fourth threshold here may be greater than the third threshold; if there are neighboring cells other than the service cell at this time, for example, the signal quality of the same-system same-frequency cell, the same-system different-frequency cell and the different cell is higher than the fourth threshold, the cell with 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 is only an example. In specific implementation, it is not limited to the fourth threshold being greater than the third threshold. The fourth threshold may also be equal to the third threshold.

[0092] In some embodiments, the S120 may include:

[0093] When the signal quality of the serving cell of the terminal is greater than a fifth threshold, determining, according to the priority information, whether the TA priority of the same-system hetero-frequency cell and the hetero-system cell is higher than the TA priority of the serving cell of the terminal;

[0094] When the TA priority of the same-system heterogeneous-frequency cell and the heterogeneous-system cell is higher than the TA priority of the service cell of the terminal, signal quality measurement of the same-system heterogeneous-frequency cell and the heterogeneous-system cell is performed; and according to the result of the signal quality measurement, the same-system heterogeneous-frequency cell and the heterogeneous-system cell are selected as the target cells for the 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 enough and stable enough. The fifth threshold here can be equal to any one of the first threshold, the second threshold, the third threshold and the fourth threshold.

[0096] In the embodiment of the present application, if the signal quality of the serving cell is greater than the fifth threshold, it is still determined based on the TA priority information whether there are same-system different-frequency cells and whether the TA priority of the different-system cells is higher than the TA priority of the serving cell. If so, signal quality measurement is required, otherwise signal quality measurement is not performed, thereby reducing unnecessary signal quality measurements and reducing terminal power consumption.

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

[0098] When the TA priority of the intra-system hetero-frequency cell and the hetero-system cell is lower than the TA priority of the serving cell of the terminal, the signal quality measurement of the intra-system hetero-frequency cell or the hetero-system cell is not performed.

[0099] In this way, when the TA priority of the same-system heterofrequency cell and the heterosystem cell is lower than the TA priority of the serving cell, the heterofrequency signal measurement is not performed. Such heterofrequency signal includes but is not limited to: signal quality measurement of the same-system heterofrequency cell or the heterosystem cell.

[0100] In some embodiments, Figure 5 As shown, the method also includes:

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

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

[0103] In an embodiment of the present application, the TA information of the TA to which the neighboring cell belongs is also carried in the system message broadcast in the serving cell, 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 cell includes at least one of a same-system same-frequency cell, a same-system different-frequency cell, and a different-system cell.

[0105] The receiving the system information broadcast by the serving cell of the terminal includes:

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

[0107] Receiving a same-system and same-frequency cell reselection system message broadcasted by a serving cell, wherein the same-system and same-frequency cell reselection message carries TA information of the same-system and same-frequency cell;

[0108] receiving a same-system different-frequency cell reselection system message broadcasted by a serving cell, wherein the same-system different-frequency cell reselection message carries TA information of the same-system different-frequency cell;

[0109] A heterogeneous cell reselection system message broadcasted by a serving cell is received, wherein the heterogeneous cell reselection system message carries TA information of the heterogeneous cell.

[0110] The TA information here may indicate the TA to which the neighboring cell belongs.

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

[0112] In some embodiments, performing cell reselection according to the priority information includes:

[0113] According to the priority information, determine that the same-system different-frequency cell corresponding to the TA information carried by the system message is a candidate cell for cell reselection;

[0114] and / or,

[0115] According to the priority information, it is determined that the heterogeneous system cell corresponding to the TA information carried in the system message is a candidate cell for cell reselection.

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

[0117] In some other embodiments, during cell reselection, cells in the same system and frequency are defaulted as candidate cells for cell reselection.

[0118] Which neighboring cells need to be reselected according to the priority information of the TA in this application, in the embodiment of this application, it is necessary to carry the TA information of the TA to which the neighboring cells belong in the system message. If the TA information of the TA to which a neighboring cell belongs is not carried in the system message of the serving cell, the cell can be reselected according to the frequency priority or cell priority, rather than the cell reselection according to the TA priority information in the embodiment of this application.

[0119] Which cells are used as candidate cells for cell reselection based on TA priority information is based on the same-system and same-frequency cells, same-system and different-frequency cells, and different-system cells that carry slice information in the system message sent by the serving cell, thereby reducing reselection to an inappropriate cell caused by cell reselection in all cells.

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

[0121] Receiving a first indication sent by a 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 determining, according to the TA information carried in the system information, the TA to which the neighboring cell belongs includes:

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

[0124] Even if the terminal receives the first indication, the system message received in the serving cell may or may not carry TA information. If the first indication is received and no TA information is carried, it is determined that the network slice supported by the frequency of the neighboring cell is the same as the network slice supported by the frequency of the serving cell. If the system message carries TA information, the TA information of the network slice supported by the frequency of the neighboring cell is determined according to the TA information.

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

[0126] receiving a second indication sent by a 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;

[0127] 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, it is determined that the neighboring cell and the serving cell of the terminal belong to the same TA.

[0128] In some embodiments, a second indication is also broadcasted in the serving cell. The second indication is information for indicating whether the TAs to which the serving cell and the neighboring cell belong are different.

[0129] If the first indication is received and the second indication is not received, and the system message does not carry the TA information of the neighboring cell, it is determined that the network slice supported by the frequency point of the neighboring cell and the service cell of the terminal is the same.

[0130] In some embodiments, when the second indication is not received, it may be assumed that the network slice supported by the frequency of the neighboring cell is the same as the network slice supported by the frequency of the serving cell. In some embodiments, the first indication and / or the second indication may only include 1 bit and may be broadcast in different time messages.

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

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

[0133] The priority information is received when a tracking area update (Tracking Area Update, TAU) or a radio access network area update (Radio Access Network Area Update, RAU) of the terminal occurs.

[0134] The update of TAU involves the update of the area where the core network is located, while the update of RAU involves the update of the area where the wireless network is located. Generally speaking, the Tracking Area (TA) corresponding to TAU is larger than the Notification Area (NA) corresponding to RAU.

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

[0136] For example, the priority information is carried in a completion message or confirmation message of the TAU or RAU. Thus, when the terminal receives the completion message or confirmation message of the TAU or RAU, the terminal has completed receiving the priority information.

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

[0138] When the terminal releases the radio resource control RRC connection, RRC release information carrying the priority information is received.

[0139] When the terminal releases a radio resource control (Radio Resource Control, RRC) connection, RRC release information carrying the first priority information is received.

[0140] In some embodiments, the terminal releases the RRC connection through an RRC connection release message, thereby exiting the connected state and entering an idle state or an inactive state. In this way, when entering the connected state again, a cell reselection will be performed, so that the cell associated with the network slice can be selected in time according to the first priority information carried in the RRC connection release message.

[0141] In the embodiment of the present application, the priority information of the TA is not sent through special information, but is received by using the information used in the existing process, which has strong compatibility with the existing technology and reduces unnecessary reception of the terminal. And the priority information is received in the TAU, RAU and connection release messages, which can be used immediately when the cell is reselected next time, 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: Sending priority information of the TA, wherein the priority information is used for cell reselection of the terminal.

[0144] The base station in the embodiment of the present application may be a 3G base station, a 4G base station or a 5G base station or any later generation or multiple generations of base stations after the 5G base station.

[0145] In the embodiment of the present 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 be used for cell reselection.

[0146] In the embodiment of the present application, the priority information of the TA here may be the priority information of the UE granularity, that is, the priority information received by different terminals is different.

[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 point supported by the first TA is higher than the priority of the frequency point supported by the second TA.

[0150] The higher the TA priority of a TA, the higher the priority of the frequency point supported by the 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 of the TA; the second priority is the priority of the TA and the frequency combination supported by the TA.

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

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

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

[0156] In an embodiment of the present application, a first indication is broadcast in the serving cell, and the first indication is used to inform the terminal whether the system message of the serving cell carries the TA information of the neighboring cell.

[0157] For example, the priority information of the TA sent includes:

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

[0159] Terminals residing in different cells correspond to different service cells.

[0160] If the serving cell and the neighboring cell belong to different TAs, the TA to which the neighboring cell belongs may be specifically indicated by carrying TA information in a system message.

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

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

[0163] A same-system and same-frequency cell reselection system message broadcasted in the serving cell, wherein the same-system and same-frequency cell reselection message carries the TA information of the same-system and same-frequency cell;

[0164] A same-system different-frequency cell reselection system message broadcasted in the serving cell, wherein the same-system different-frequency cell reselection message carries TA information of the same-system different-frequency cell;

[0165] The heterogeneous cell reselection system message is broadcasted in the serving cell, wherein the heterogeneous cell reselection system message carries the TA information of the heterogeneous cell.

[0166] In some embodiments, the same-system same-frequency cell reselection system message includes but is not limited to System Information Block (SIB) 3. The same-system different-frequency cell reselection system message may include but is not limited to SIB 4. The different-system cell reselection system message includes but is not limited to SIB 5.

[0167] In some embodiments, the sending of the TA priority information includes:

[0168] According to the first indication, the serving cell of the terminal and the TA to which the neighboring cell belongs are the same, and 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 comprises:

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

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

[0172] The priority information is sent during the 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, the 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 a connected state to an idle state or an inactive state, the terminal receives an RRC release message, and the first priority information can be obtained from the RRC release message.

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

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

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

[0178] In some embodiments, the first receiving module 710 and the reselecting module 720 may be program modules, which are capable of receiving the first priority information and reselecting a cell after being executed by a processor.

[0179] In some embodiments, the first receiving module 710 and the reselection module 720 may be a combination of soft and hard modules; the soft and hard modules may include various programmable arrays; the programmable arrays include but are not limited to complex programmable arrays or field programmable arrays.

[0180] In some other embodiments, the first receiving module 710 and the reselecting module 720 may further include: a pure hardware module. The pure hardware module may include: a dedicated integrated circuit.

[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 point supported by the first TA is higher than the priority of the frequency point 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 of the TA; the second priority is the priority of the TA and the frequency combination supported by the TA.

[0186] In some embodiments, the reselection module 720 is configured to determine, based on the priority information, whether there is a TA priority of a TA to which an inter-frequency cell belongs that is higher than the TA priority of the service cell of the terminal when the signal quality of the service cell of the terminal is greater than a first threshold; measure the signal quality of the inter-frequency cell when there is a TA priority of the TA to which the inter-frequency cell belongs that is higher than the TA priority of the service cell of the terminal; and perform the cell reselection based on the result of the signal quality measurement of the inter-frequency cell.

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

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

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

[0190] In some embodiments, the reselection module 720 is configured to reselect same-system different-frequency cells, same-system same-frequency cells and different-system cells, and determine, based on the priority information, whether there is a cell whose TA priority is higher than the TA priority of the service cell of the terminal among the same-system different-frequency cells, same-system same-frequency cells and different-system cells; when there is a cell whose TA priority is higher than the service cell of the terminal, determine the cell whose TA priority is higher than the service cell of the terminal and whose signal quality is higher than the second threshold as the target cell for cell reselection.

[0191] In some embodiments, the reselection module 720 is configured to reselect same-system heterofrequency cells, same-system same-frequency cells and different-system cells, and determine, according to the priority information, whether there is a cell with a TA priority higher than or equal to the TA priority of the service cell of the terminal among the same-system heterofrequency cells, same-system same-frequency cells and different-system cells; when there is no cell with a TA priority higher than or equal to the TA priority of the service cell of the terminal, if the signal quality of the service cell of the terminal is lower than the third threshold, and there are cells with signal quality higher than the fourth threshold among the same-system heterofrequency cells, same-system same-frequency cells and different-system cells, the cell with signal quality higher than the fourth threshold is used as the target cell for cell reselection.

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

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

[0194] The second measurement module is configured to not perform signal quality measurement of the intra-system hetero-frequency cell or the hetero-system cell when the TA priority of the intra-system hetero-frequency cell or the hetero-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 a serving cell of the terminal;

[0196] The device also includes:

[0197] The determination module is configured to determine the TA to which the neighboring cell belongs according to 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 cell includes: at least one of a same-system same-frequency cell, a same-system different-frequency cell, and a different-system cell;

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

[0200] Receiving a same-system and same-frequency cell reselection system message broadcasted by a serving cell, wherein the same-system and same-frequency cell reselection message carries TA information of the same-system and same-frequency cell;

[0201] receiving a same-system different-frequency cell reselection system message broadcasted by a serving cell, wherein the same-system different-frequency cell reselection message carries TA information of the same-system different-frequency cell;

[0202] A heterogeneous cell reselection system message broadcasted by a serving cell is received, wherein the heterogeneous cell reselection system message carries TA information of the heterogeneous cell.

[0203] In some embodiments, the reselection module 720 is configured to: determine, according to the priority information, a same-system different-frequency cell corresponding to the TA information carried by the system message as a candidate cell for cell reselection;

[0204] and / or,

[0205] According to the priority information, it is determined that the heterogeneous system cell corresponding to the TA information carried in the system message is 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 a 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 TA to which the neighboring cell and the serving cell of the terminal belong is the same 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 a 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 determination 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 tracking area update TAU of the terminal or the radio access network notification area update 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 to a base station and includes:

[0213] The sending module 810 is configured to send the priority information of 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, and the program module can send the first priority information after being executed by the processor.

[0215] In some embodiments, the sending module 810 may be a soft-hard combination module; the soft-hard combination module may include various programmable arrays; the programmable arrays include but are not limited to complex programmable arrays or field programmable arrays.

[0216] In some other embodiments, the sending module 810 may further include: a pure hardware module. The pure hardware module may include: a dedicated integrated circuit.

[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 point supported by the first TA is higher than the priority of the frequency point 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 among the TA priorities; the second priority is the priority of the TA and the frequency combination supported by the TA.

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

[0223] The broadcast module is configured to broadcast a first indication in a serving cell, wherein the first indication is used to indicate whether a system message broadcast in a serving cell of the terminal can carry the TA information. The priority information at least indicates a TA priority of a 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 according to the first indication when the TA to which the serving cell of the terminal and the neighboring cell belong are different. The priority information at least indicates the TA priority of the TA to which the neighboring cell belongs.

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

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

[0227] In some embodiments, the broadcast module is further configured to broadcast a second indication in the serving cell, wherein the second indication is used to indicate that the serving cell of the terminal and the TA to which the neighboring cell belongs are different. The system message is used to carry the TA information after the first indication and the second indication are broadcast.

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

[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] One or more examples are provided below in combination with any of the above embodiments:

[0231] The UE receives the TA (Tracking Area) priority sent by the base station through 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] According to the priority information of TA, the priority of TA can be obtained, such as TA1>TA2>TA3. The priority information of TA and frequency combination: for example, TA1+f1>TA2+f1=TA1+f2>TA2+f2. The priority of TA and the frequency combination supported by TA, such as TA3>TA1 f1>TA2 f2>TA1 f2>TA2 f1>f3. In this example, only TA is indicated without corresponding frequency, such as TA3, which means it is applicable to all frequencies under the TA; only frequency is indicated without corresponding TA, such as f3, which means that the priority of the frequency does not need to consider TA factors.

[0234] In some cases, for intra-freq and inter-freq reselection, for cells with the same freq+TA priority, the UE reselects the cells after sorting them by signal quality. The freq+TA priority is the priority of the TA and the frequency points supported by the TA in the TA priority in the above embodiment.

[0235] In some cases, for intra-freq, inter-freq and inter-RAT cell reselection, if the priority of the freq+TA is higher than the freq+TA priority of the serving cell, and if there is a cell under the freq+TA whose signal quality is higher than a certain threshold, the UE reselects to the freq+TA. The freq+TA indicates the corresponding TA and the frequency freq supported by the TA. A TA may support one or more frequencies. The priority of the same TA and different frequency combinations may be the same or different.

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

[0237] In some cases, the UE receives TA information of the frequency and / or the neighboring cells of the frequency broadcast by the serving cell. When performing cell reselection, the UE determines the TA corresponding to the frequency and / or the neighboring cells of the frequency through the information.

[0238] For intra-frequency cells, for example, the TA corresponding to the neighbor cell is indicated in the intraFreqNeighCellList of SIB3.

[0239] For inter-frequency cells in the same system, for example, the TA corresponding to the frequency (freq) is indicated in the inter-frequency cell information (InterFreqCarrierFreqInfo) of SIB4, or the TA corresponding to the neighboring cell (Neighbor cell) is indicated in the inter-frequency cell information (interFreqNeighCellInfo) in the carrier frequency information (InterFreqCarrierFreqInfo) of the same system. Indicating the TA corresponding to the freq means that the TAs of all neighboring cells under the freq are the same.

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

[0241] The UE can obtain the neighboring cell of the TA through the system message, and the UE does not need to obtain the TA by reading the system message of the neighboring cell.

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

[0243] In some cases, if the signal quality of the serving cell is greater than a certain threshold, and there is no neighbor cell with a higher priority than the serving cell and its corresponding TA among the intra-freq neighbor cells and their corresponding TA indicated in the system message, the UE may not perform intra-freq measurement; otherwise, the UE needs to perform intra-freq measurement.

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

[0245] In some cases, the UE receives an indication broadcast by the base station indicating whether broadcast TA is supported, and the UE determines the TA corresponding to the frequency and / or the neighboring cells of the frequency through the indication and whether there is TA indication information in the frequency and / or the neighboring cells of the frequency.

[0246] In some cases, if the base station broadcasts an indication that broadcast TA is supported, if the frequency indicated in the system message (if the neighboring cell is not indicated in the frequency) does not indicate a corresponding TA, or the neighboring cell and the frequency indicated in the system message do not indicate a corresponding TA, then it is considered that the frequency or the neighboring cell has the same TA as the serving cell.

[0247] In some cases, if the base station broadcasts an indication that broadcast TA is not supported, the UE cannot determine the frequency and TA of the neighboring cell through the system message.

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

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

[0250] In some cases, the UE receives an indication broadcast by the base station whether there is a neighboring cell whose TA is different from the TA of the serving cell. If the indication does not exist, the UE considers that all neighboring cells have the same TA as the serving cell. If the indication exists, if the frequency indicated in the system message (if the neighboring cell is not indicated in the frequency) does not indicate a corresponding TA, or the neighboring cell and / or frequency of the frequency indicated in the system message does not indicate a corresponding TA, then the frequency or neighboring cell is considered to 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 is different from the TA of the serving cell, the UE cannot determine the frequency and the TA of the neighboring cell through the system message.

[0252] Reference Fig. 9 The terminal 800 shown in this embodiment provides a terminal 800, which can be a mobile phone, a computer, a digital broadcast terminal, a message sending and receiving device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

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

[0254] The processing component 802 generally controls the overall operation of the terminal 800, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the above-mentioned method. In addition, the processing component 802 may include one or more modules to facilitate the interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.

[0255] The memory 804 is configured to store various types of data to support operations on the device 800. Examples of such data include instructions for any application or method operating on the terminal 800, contact data, phone book data, messages, pictures, videos, etc. The 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 memory, flash memory, magnetic disk or optical disk.

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

[0257] The 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 touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the device 800 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0258] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC), and when the terminal 800 is in an operation mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 804 or sent via the communication component 816. In some embodiments, the 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 button, volume button, start button, and lock button.

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

[0261] The communication component 816 is configured to facilitate wired or wireless communication between the terminal 800 and other devices. The terminal 800 can access a wireless network based on a communication standard, such as Wi-Fi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can 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 can 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 above methods.

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

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

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

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

[0267] The wireless network interface 950 includes, but is not limited to, the antenna of the aforementioned communication device. After considering the specification and practicing the invention disclosed herein, those skilled in the art will easily think of other embodiments of the present application. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary technical means in the art that are not disclosed in the present disclosure. The specification and examples are only regarded as exemplary, and the true scope and spirit of the present application are indicated by the following claims.

[0268] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

[0269] Ask for restrictions.

Claims

1. A cell reselection method, wherein: Applied in terminals, including: Receiving system information broadcast by a serving cell of the terminal; Determine a tracking area TA according to the TA information carried by the system information; receiving priority information; the priority information includes the priority of the TA and the frequency combination; the priority of the TA and the frequency combination refers to the priority being set in combination with the TA and the frequency; Cell reselection is performed according to the priority information.

2. The method according to claim 1, wherein: The priority information also includes: The first type of priority indication information indicates the first priority among the TA priorities of the TA; the first priority is the priority of the TA itself.

3. The method according to claim 1, wherein: The cell reselection includes: for cells with the same TA and frequency combination priority, the terminal reselects the cells after sorting them according to signal quality.

4. The method according to claim 1 or 2, wherein: The performing cell reselection according to the priority information includes: For the reselection of the same-system different-frequency cell and the same-system same-frequency cell, determine the signal quality of the same-system different-frequency cell and the same-system same-frequency cell having the same TA priority according to the priority information; The same-system-different-frequency cell or the same-system-same-frequency cell with the highest signal quality is determined as a target cell for cell reselection.

5. The method according to claim 1, wherein: The performing cell reselection according to the priority information includes: For the reselection of the same-system different-frequency cells, the same-system same-frequency cells, and the different-system cells, determining, according to the priority information, whether there is a cell whose frequency point and TA combination priority are higher than the frequency point and TA combination priority of the serving cell of the terminal among the same-system different-frequency cells, the same-system same-frequency cells, and the different-system cells; When there is a cell with a higher frequency and TA combination priority than the serving cell of the terminal, a cell with a higher frequency and TA combination priority than the serving cell of the terminal and a signal quality higher than a threshold is determined as a target cell for cell reselection.

6. The method according to claim 1 or 2, wherein: The performing cell reselection according to the priority information includes: When the signal quality of the serving cell of the terminal is greater than a fifth threshold, determining, according to the priority information, whether the TA priority of the same-system hetero-frequency cell and the hetero-system cell is higher than the TA priority of the serving cell of the terminal; When the TA priority of the same-system heterogeneous-frequency cell and the heterogeneous-system cell is higher than the TA priority of the serving cell of the terminal, performing signal quality measurement of the same-system heterogeneous-frequency cell and the heterogeneous-system cell; The same-system different-frequency cell or the different-system cell is selected as the target cell for the cell reselection according to the signal quality measurement result.

7. The method according to claim 1 or 2, wherein: The receiving priority information includes: receiving an RRC release message carrying the priority information.

8. The method according to claim 1, wherein: The neighboring cells of the serving cell include: at least one of a same-system same-frequency cell, a same-system different-frequency cell, and a different-system cell; The receiving a system message broadcast by a serving cell of the terminal includes at least one of the following: Receiving a same-system and same-frequency cell reselection system message broadcasted by a serving cell, wherein the same-system and same-frequency cell reselection message carries TA information of the same-system and same-frequency cell; receiving a same-system different-frequency cell reselection system message broadcasted by a serving cell, wherein the same-system different-frequency cell reselection message carries TA information of the same-system different-frequency cell; A heterogeneous cell reselection system message broadcasted by a serving cell is received, wherein the heterogeneous cell reselection system message carries TA information of the heterogeneous cell.

9. The method according to claim 8, wherein: The performing cell reselection according to the priority information comprises: According to the priority information, determine that the same-system different-frequency cell corresponding to the TA information carried by the system message is a candidate cell for cell reselection; and / or, According to the priority information, it is determined that the heterogeneous system cell corresponding to the TA information carried in the system message is a candidate cell for cell reselection.

10. A method for transmitting information, wherein: Applied in base stations, including: Broadcasting system information; the system information carries TA information; Send priority information, wherein the priority information is used for the terminal to reselect a cell; the priority information includes the priority of the TA and frequency combination; the priority of the TA and frequency combination refers to the priority set in combination with the TA and the frequency.

11. The method according to claim 10, wherein: The priority information also includes: The first type of priority indication information indicates the first priority among the TA priorities of the TA; the first priority is the priority of the TA itself.

12. The method according to claim 10 or 11, wherein: The sending priority information includes: A radio resource control (RRC) release message carrying the priority information is sent to the terminal.

13. The method according to any one of claims 10 to 12, wherein: The broadcast system message includes at least one of the following: A same-system and same-frequency cell reselection system message broadcasted in a serving cell of the terminal, wherein the same-system and same-frequency cell reselection message carries TA information of the same-system and same-frequency cell; A same-system different-frequency cell reselection system message broadcasted in a serving cell of the terminal, wherein the same-system different-frequency cell reselection message carries TA information of the same-system different-frequency cell; A heterogeneous cell reselection system message broadcasted in a serving cell of the terminal, wherein the heterogeneous cell reselection system message carries TA information of the heterogeneous cell.

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

15. The device according to claim 14, wherein: The first receiving module is configured to receive an RRC release message carrying the priority information.

16. The device according to claim 14 or 15, wherein: The cell reselection includes: for cells with the same TA and frequency combination priority, the terminal reselects the cells after sorting them according to signal quality.

17. The device according to any one of claims 14 to 15, wherein: The reselection module is configured to determine the signal quality of the same system different frequency cells and the same system same frequency cells having the same TA priority according to the priority information for the reselection of the same system different frequency cells and the same system same frequency cells; The same-system-different-frequency cell or the same-system-same-frequency cell with the highest signal quality is determined as a target cell for cell reselection.

18. The device according to any one of claims 14 to 17, wherein: The reselection module is configured to reselect same-system different-frequency cells, same-system same-frequency cells and different-system cells, and determine, according to the priority information, whether there are cells whose frequency and TA combination priority are higher than the frequency and TA combination priority of the service cell of the terminal among the same-system different-frequency cells, same-system same-frequency cells and different-system cells; when there is a cell whose frequency and TA combination priority are higher than the frequency and TA combination priority of the service cell of the terminal, determine the cell whose frequency and TA combination priority are higher than the service cell of the terminal and whose signal quality is higher than the threshold as the target cell for cell reselection.

19. An information processing device, wherein: Applied in base stations, including: The sending module is configured to broadcast system information; the system information carries TA information; priority information is sent, wherein the priority information is used for cell reselection of the terminal; the priority information includes the priority of the TA and frequency combination; the priority of the TA and frequency combination refers to the priority set in combination with the TA and frequency.

20. The device according to claim 19, wherein The sending module is configured to send a radio resource control RRC release message carrying the priority information to the terminal.

21. A communication device, wherein: include: antenna; Memory; A processor is connected to the antenna and the memory, respectively, and is configured to control the antenna to send and receive wireless signals by executing an executable program stored in the memory, and is capable of executing the steps of the method described in any one of claims 1 to 9 or 10 to 13.

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