Cell reselection method and related device

Abstract

The present application provides a cell reselection method and a related device. The method comprises: an access network device generating cell reselection configuration information, wherein the cell reselection configuration information comprises reselection parameter information, the reselection parameter information is used for indicating a reselection parameter of each of a plurality of cells, the reselection parameter is a priority or a reselection offset, and the plurality of cells include a cell of the access network device and / or a cell of a neighboring access network device of the access network device; and the access network device sending the cell reselection configuration information to a terminal device, such that the terminal device executes cell reselection on the basis of the cell reselection configuration information.

Description

A cell reselection method and related equipment

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on February 8, 2024, with application number 202410177922.3 and invention name “A cell reselection method and related equipment”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communications, and in particular to a cell reselection method and related equipment. Background Art

[0003] Currently, discussions on cellular communication technology focus on terminal power consumption (due to battery size limitations and the sensitive impact on user experience). However, with the recent development of green communications and operators' self-interest, network energy conservation has also begun to be discussed. Rel-18 / 19 established a project focusing on network energy conservation.

[0004] In the current mechanism design, only for connected terminals, a cell discontinuous receiving (DTX) pattern can be configured for the terminal. The configuration is similar to the UE's DRX mechanism and is periodically active. Specifically, cell DTX means that the base station only turns on the transmission function during the activation period. That is, if it is not active, the terminal does not require to receive downlink dynamic scheduling, semi-static downlink data transmission, etc. The current problem is that the UE's DRX can achieve power saving effects as long as the UE is configured. However, for the cell DTX solution, although the configuration is all for the UE, because the cell or base station serves multiple UEs, a large number of UEs need to be configured with a similar DTX pattern in order to achieve energy saving effects for the network.

[0005] In order to achieve the above effect, it is necessary to aggregate UEs as much as possible into cells that support the cell DTX mode. However, this problem has yet to be solved. Summary of the Invention

[0006] The present application provides a cell reselection method and related devices for increasing the probability of a terminal device residing in a cell supporting a cell DTX mode, thereby facilitating energy saving.

[0007] The first aspect of the present application provides a cell reselection method:

[0008] The access network device generates cell reselection configuration information, which includes reselection parameter information. The reselection parameter information is used to indicate a reselection parameter for each of a plurality of cells, where the reselection parameter is a priority or a reselection offset. The plurality of cells include a cell of the access network device and / or cells of neighboring access network devices of the access network device. The reselection parameter is determined based on the cell's support for a multicast broadcast service using a cell DTX mode. The access network device sends the cell reselection configuration information to a terminal device, causing the terminal device to perform cell reselection based on the cell reselection configuration information.

[0009] In this application, the access network equipment can determine the reselection parameters of each cell based on the support of each cell for the multicast broadcast service using the DTX mode, so that the terminal device can reselect the cell that supports the multicast broadcast service of interest with a high probability when performing cell reselection, and the multicast broadcast service uses the cell DTX mode, which is conducive to the terminal devices gathering to the cell that supports the cell DTX mode, thereby achieving network energy saving.

[0010] In a possible implementation, the support status of the cell for the multicast broadcast service using the cell DTX mode includes the number of multicast broadcast services using the cell DTX mode supported by the cell.

[0011] In one possible implementation, cell reselection configuration information includes multiple sets of reselection parameter information, with different reselection parameter information being bound to different multicast broadcast services. A cell's support for a multicast broadcast service using the cell DTX mode includes whether the cell supports a target multicast broadcast service using the cell DTX mode, where the target multicast broadcast service is the multicast broadcast service bound to the reselection parameter information. An access network device sends the cell reselection configuration information to a terminal device, causing the terminal device to select, from the multiple sets of reselection parameter information, the reselection parameter information bound to the multicast broadcast service of interest to the terminal device, and perform cell reselection based on the selected reselection parameter information.

[0012] In a possible implementation, the reselection parameter information indicates the reselection parameter with a cell as the granularity and / or indicates the reselection parameter with a frequency as the granularity.

[0013] In a possible implementation manner, the terminal device is a terminal device supporting cell DTX.

[0014] The second aspect of the present application provides a cell reselection method:

[0015] The access network device generates cell reselection configuration information, which includes the multicast broadcast services supported by the cell and / or frequency, and whether the multicast broadcast services use the cell DTX mode. The access network device sends the cell reselection configuration information to the terminal device, so that the terminal device performs cell reselection based on the reselection configuration information.

[0016] In this application, the access network device sends cell reselection configuration information to the terminal device, so that the terminal device can make an autonomous choice based on the cell reselection configuration information when performing cell reselection, thereby being able to reselect the multicast broadcast service that supports its interest with a high probability, and the multicast broadcast service uses a cell in cell DTX mode, which is conducive to the terminal device gathering in a cell that supports cell DTX mode, thereby achieving network energy saving.

[0017] In a possible implementation manner, the terminal is a terminal supporting cell DTX.

[0018] The third aspect of the present application provides a cell reselection method:

[0019] A terminal device receives cell reselection configuration information from an access network device. The cell reselection configuration information includes reselection parameter information. The reselection parameter information is used to indicate a reselection parameter for each of a plurality of cells. The reselection parameter is a priority or a reselection offset. The plurality of cells include a cell of the access network device and / or cells of neighboring access network devices of the access network device. The reselection parameter is determined based on the cell's support for a multicast broadcast service using a cell DTX mode. The terminal device performs cell reselection based on the cell reselection configuration information.

[0020] In a possible implementation, the support status of the cell for the multicast broadcast service using the cell DTX mode includes the number of multicast broadcast services using the cell DTX mode supported by the cell.

[0021] In one possible implementation, the cell reselection configuration information includes multiple sets of reselection parameter information, with different reselection parameter information being bound to different multicast broadcast services. The cell's support for a multicast broadcast service using the cell DTX mode includes whether the cell supports a target multicast broadcast service using the cell DTX mode, where the target multicast broadcast service is the multicast broadcast service bound to the reselection parameter information. A terminal device selects, from the multiple sets of reselection parameter information, the reselection parameter information bound to the multicast broadcast service of interest to the terminal device, and performs cell reselection based on the selected reselection parameter information.

[0022] In one possible implementation, if the reselection parameter is priority, the terminal device determines multiple first cells whose signal quality is greater than a threshold value; the terminal device determines the priorities of the multiple first cells based on the cell reselection configuration information; the terminal device selects the first cell with the highest priority to reside; if the reselection parameter is a reselection offset, the terminal device obtains R criterion values ​​of the multiple second cells based on signal measurement of the multiple second cells; the terminal device determines the reselection offsets of the multiple second cells based on the cell reselection configuration information; the terminal device adds the R criterion values ​​of the multiple second cells to the reselection offset to obtain modified R criterion values ​​of the multiple cells; the terminal device selects the second cell whose modified R criterion value is greater than the threshold value to reside.

[0023] In one possible implementation, if the reselection parameter is priority, the terminal device determines multiple first cells whose signal quality is greater than a threshold value; the terminal device determines the priorities of the multiple first cells based on the cell reselection configuration information; the terminal device selects the first cell with the highest priority to reside; if the reselection parameter is a reselection offset, the terminal device obtains R criterion values ​​of the multiple second cells based on signal measurement of the multiple second cells; the terminal device determines the reselection offsets of the multiple second cells based on the cell reselection configuration information; the terminal device adds the R criterion values ​​of the multiple second cells to the reselection offset to obtain modified R criterion values ​​of the multiple second cells; the terminal device selects the second cell whose modified R criterion value is greater than the threshold value to reside.

[0024] A fourth aspect of the present application provides a cell reselection method:

[0025] The terminal device receives cell reselection configuration information from the access network device. The cell reselection configuration information includes the multicast broadcast services supported by the cell and / or frequency, and whether the multicast broadcast services use the cell DTX mode. The terminal device performs cell reselection based on the reselection configuration information.

[0026] In a possible implementation manner, the terminal is a terminal supporting cell DTX.

[0027] In a fifth aspect, the present application provides an access network device, comprising a processor and a memory, wherein the processor is coupled to the memory, and the memory is used to store instructions. When the instructions are executed by the processor, the access network device executes the method in the first or second aspect described above.

[0028] In the sixth aspect of the present application, a terminal device is provided, comprising a processor and a memory, wherein the processor is coupled to the memory, and the memory is used to store instructions. When the instructions are executed by the processor, the access network device executes the method in the aforementioned third aspect or fourth aspect.

[0029] A seventh aspect of the present application provides a computer-readable storage medium:

[0030] Instructions are stored thereon, and when a computer executes the instructions, the computer is caused to execute the methods in the aforementioned various aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] FIG1 is a schematic diagram of an application scenario of the present application;

[0032] FIG2 is a schematic diagram of a flow chart of the cell reselection method of the present application;

[0033] FIG3 is a schematic diagram of reselection parameter information;

[0034] FIG4 is another schematic flow chart of the cell reselection method of the present application;

[0035] FIG5 is a schematic diagram of cell reselection configuration information;

[0036] FIG6 is a schematic structural diagram of an access network device;

[0037] FIG7 is another schematic structural diagram of an access network device;

[0038] FIG8 is a schematic structural diagram of a terminal device;

[0039] FIG9 is another schematic structural diagram of a terminal device;

[0040] FIG10 is another schematic structural diagram of an access network device or a terminal device. DETAILED DESCRIPTION

[0041] The following describes the embodiments of the present application in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present application, rather than all the embodiments. Those skilled in the art will appreciate that with the development of technology and the emergence of new scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0042] The terms "first," "second," and the like in the specification and claims of this application and in the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions, e.g., a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or apparatus.

[0043] The cell reselection method in this application can be applied to long term evolution (LTE) systems, fifth generation mobile networks (5G) new radio (NR) systems, sixth generation mobile information technology (6G) systems and subsequent evolutionary systems, and this application does not limit this. As shown in Figure 1, the communication system includes at least a terminal device and an access network device. Among them, the terminal device may include a handheld device with a wireless connection function or a processing device connected to a wireless modem. The terminal device can communicate with the core network (for example, a 5G core network (5th generation core, 5GC)) via a radio access network (RAN) and can exchange voice and / or data with the RAN. The terminal device may also be referred to as a terminal, user equipment (UE), wireless terminal device, mobile terminal (MT) device, subscriber unit, subscriber station, mobile station (MS), mobile, remote station, access point (AP), remote terminal device, access terminal device, user terminal, user agent, or user device, etc.In addition, the terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) device, an augmented reality (AR) device, an extended reality (XR) service terminal, a cloud gaming (CG) service terminal, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. It should be understood that the embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal device.

[0044] Access network equipment can be any device with wireless transceiver capabilities and can be used to perform air interface-related functions, such as radio link maintenance, radio resource management, and some mobility management functions. In addition, access network equipment can also be configured with a baseband unit (BBU) that has baseband signal processing capabilities. Exemplarily, the access network equipment can be the radio access network (RAN) currently providing services to terminal devices. Currently, some common examples of access network equipment include: Node B (NB), evolved Node B (eNB), next generation Node B (gNB) in 5G new radio (NR) systems, nodes in 6G systems (e.g., xNodeB), transmission reception point (TRP), radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved NodeB or home node (HNB)), etc. In addition, in network structures such as cloud radio access network (CloudRAN) or open radio access network (ORAN), access network equipment can include a centralized unit (CU) (also known as a control unit) and / or a distributed unit (DU). The RAN equipment including the CU and DU splits the protocol layers of the gNB in ​​the NR system, centrally controlling some protocol layer functions in the CU and distributing some or all of the remaining protocol layer functions in the DU, which is then centrally controlled by the CU.

[0045] The cell reselection method proposed in this application can be applied to cell reselection scenarios. Cell reselection involves measuring the signal quality level of neighboring cells. For different cells, the UE evaluates different reselection rules and reselects a cell. When a terminal device in a non-connected state (including idle and inactive states) resides in a cell, the terminal device triggers the cell reselection process.

[0046] Please refer to Figure 2 for a detailed description of the process of the cell reselection method in this application:

[0047] 201. The access network device generates cell reselection configuration information, where the cell reselection configuration information includes reselection parameter information, where the reselection parameter information is used to indicate a reselection parameter of each of a plurality of cells, where the reselection parameter is a priority or a reselection offset, where the plurality of cells include a cell of the access network device and / or cells of neighboring access network devices of the access network device.

[0048] The access network device determines the multicast broadcast services supported by each of multiple cells, and whether these multicast broadcast services use the cell DTX mode. The multiple cells include the access network device's own cell and may also include cells of neighboring access network devices. The access network device generates cell reselection configuration information based on the above information. The cell reselection configuration information includes a set of reselection parameter information. The reselection parameter information is used to indicate the reselection parameters of each of the above cells. Specifically, for a cell, the access network device may determine the reselection parameters of the cell based on the number of multicast broadcast services using the cell DTX mode supported by the cell. For example, the more multicast broadcast services using the cell DTX mode supported by a cell, the better the reselection parameters of the cell (higher priority or larger reselection offset). It should be understood that the reselection parameter information may indicate the reselection parameters at the cell granularity, that is, the corresponding reselection parameters are indicated for each cell separately; or the reselection parameters may be indicated at the frequency granularity, where the frequency includes several cells among the multiple cells, and the reselection parameters of the frequency are the reselection parameters of these several cells.

[0049] Alternatively, the cell reselection configuration information may also include multiple groups of reselection parameter information bound to different multicast broadcast services, wherein the reselection parameters in a group of reselection parameter information are determined based on whether the cell supports the target multicast broadcast service using the cell DTX mode, and the above-mentioned target multicast broadcast service is determined to be the multicast broadcast service bound to the group of reselection parameter information.

[0050] For example, referring to FIG3 , in the reselection parameter information bound to multicast broadcast service 1, since cell 1 supports multicast broadcast service 1 using the cell DTX mode while cell 2 does not, the reselection parameters of cell 1 are superior to those of cell 2 in this set of reselection parameters. In the reselection parameter information bound to multicast broadcast service 4, since cell 2 supports multicast broadcast service 4 using the cell DTX mode while cell 1 does not, the reselection parameters of cell 2 are superior to those of cell 1 in this set of reselection parameters. Similarly, in the reselection parameter information, the reselection parameters may be indicated at the cell level or at the frequency level, where the frequency includes several of the aforementioned multiple cells, and the reselection parameters of the frequency are the reselection parameters of these several cells.

[0051] 202. The access network device sends cell reselection configuration information to the terminal device, so that the terminal device performs cell reselection according to the cell reselection configuration information.

[0052] The access network device sends cell reselection configuration information to the terminal device through system broadcast or MCCH. The cell reselection configuration information can be carried by a new information element so that only terminal devices that support cell DTX can receive this information. The terminal device performs cell reselection based on the above information. The following is a detailed introduction to different situations:

[0053] 1. Reselect the parameter as priority

[0054] (1) The cell reselection configuration information includes a set of reselection parameters;

[0055] During cell reselection, the terminal device first measures the signal quality of all available cells to obtain the corresponding signal strengths. The terminal device then selects cells with signal strengths greater than a threshold, obtains the priorities of these cells based on the cell reselection configuration information, and selects the cell with the highest priority to reside on.

[0056] (2) The cell reselection configuration information includes multiple sets of reselection parameters;

[0057] During cell reselection, a terminal device first selects a set of reselection parameters bound to the multicast broadcast service of interest from the cell reselection configuration information. Then, similar to the previous example, the terminal device measures the signal quality of all measurable cells and obtains the corresponding signal strengths. The terminal device then selects cells with signal strengths greater than a threshold and, based on the selected set of reselection parameters, determines the priorities of these cells and selects the cell with the highest priority for resident access.

[0058] 2. The reselection parameter is the reselection offset.

[0059] (1) The cell reselection configuration information includes a set of reselection parameters;

[0060] When performing cell reselection, the terminal device first measures the signal quality of all cells that can be measured and obtains the corresponding R criterion value. s The calculation formula is: s =Q meas，s +Q hyst -Q offset temp (1)

[0061] The R criterion value R of the neighboring cell n The calculation formula is: n =Q meas，n -Q offset-Q offset temp (2)

[0062] Among them, Q meas : RSRP measurement used in cell reselection.

[0063] Q hyst : Cell reselection hysteresis value.

[0064] Q offset temp : The offset temporarily applied to the cell as specified in TS 38.331312.

[0065] Q offset :For the same frequency, if Valid is equivalent to Otherwise it is 0; for different frequencies, if Valid, then equal to Otherwise, it is equal to Q offset frequency .

[0066] The terminal device adds the reselection offset corresponding to the cell to the R criterion values ​​of the serving cell and all neighboring cells to obtain a modified R criterion value.

[0067] The terminal device will select one of the cells where the modified R criterion value is greater than the threshold value to reside in.

[0068] (2) The cell reselection configuration information includes multiple sets of reselection parameters;

[0069] The terminal device first selects a set of reselection parameters bound to the multicast broadcast service of interest from the cell reselection configuration information and applies them to the calculation of the R criterion value. Similarly, during cell reselection, the terminal device first measures the signal quality of all measurable cells using an algorithm similar to the above and obtains the corresponding R criterion value. Similarly, the terminal device adds the corresponding reselection offset to all R criterion values ​​to obtain a modified R criterion value. Among the cells whose modified R criterion value is greater than the threshold value, the terminal device selects one of the cells to reside in.

[0070] In this application, the access network equipment can determine the reselection parameters of each cell based on the support of each cell for the multicast broadcast service using the DTX mode, so that the terminal device can reselect the cell that supports the multicast broadcast service of interest with a high probability when performing cell reselection, and the multicast broadcast service uses the cell DTX mode, which is conducive to the terminal devices gathering to the cell that supports the cell DTX mode, thereby achieving network energy saving.

[0071] Please refer to FIG4 , and another process of the cell reselection method of the present application is introduced below:

[0072] 401. The access network device generates cell reselection configuration information, where the cell reselection configuration information includes the multicast broadcast services supported by the cell and / or frequency, and whether the multicast broadcast services use a cell DTX mode.

[0073] The aforementioned cells and frequencies may include the cell and frequency of the access network device itself, as well as the cell and frequency of a neighboring access network device. Referring to Figure 5 , in the cell reselection configuration information, a multicast broadcast service may be identified by a TMGI or G-RNTI, and a single bit may be used to indicate whether the multicast broadcast service uses a cell DTX mode. For example, a bit of 1 indicates that the cell DTX mode is used, and a bit of 0 indicates that the cell DTX mode is not used.

[0074] 402. The access network device sends cell reselection configuration information to the terminal device, so that the terminal performs cell reselection according to the reselection configuration information.

[0075] The access network device carries the cell reselection configuration information in a system broadcast message or MCCH and sends it to the terminal device. The cell reselection configuration information can be carried by a new information element so that only the terminal device supporting cell DTX can interpret this information.

[0076] The terminal device performs cell reselection based on the cell reselection configuration information. For example, during cell reselection, the terminal device first measures the signal quality of all measurable cells to obtain the corresponding signal strengths. The terminal device then selects cells with signal strengths greater than a threshold from these cells and then selects a cell that supports the multicast broadcast service of interest and uses the cell DTX mode for this multicast broadcast service.

[0077] In this application, the access network device sends cell reselection configuration information to the terminal device, so that the terminal device can make an autonomous choice based on the cell reselection configuration information when performing cell reselection, thereby being able to reselect the multicast broadcast service that supports its interest with a high probability, and the multicast broadcast service uses a cell in cell DTX mode, which is conducive to the terminal device gathering in a cell that supports cell DTX mode, thereby achieving network energy saving.

[0078] The above describes the cell reselection method in this application. The following describes the device in this application:

[0079] 6 , the access network device 600 in the present application includes a generating unit 601 and a sending unit 602. The acquiring unit 601 and the sending unit 602 can be implemented by software or hardware.

[0080] A generation unit 601 is used to generate cell reselection configuration information, where the cell reselection configuration information includes reselection parameter information, where the reselection parameter information is used to indicate a reselection parameter for each of a plurality of cells, where the reselection parameter is a priority or a reselection offset, and where the plurality of cells include a cell of the access network device and / or a cell of a neighboring access network device of the access network device.

[0081] The reselection parameters are determined based on the cell's support for the multicast broadcast service using the cell DTX mode.

[0082] The sending unit 602 is configured to send cell reselection configuration information to the terminal device, so that the terminal device performs cell reselection according to the cell reselection configuration information.

[0083] In a possible implementation, the support status of the cell for the multicast broadcast service using the cell DTX mode includes the number of multicast broadcast services using the cell DTX mode supported by the cell.

[0084] In one possible implementation, the cell reselection configuration information includes multiple sets of reselection parameter information, where different reselection parameter information is bound to different multicast broadcast services. The cell's support for a multicast broadcast service using the cell DTX mode includes whether the cell supports a target multicast broadcast service using the cell DTX mode, where the target multicast broadcast service is the multicast broadcast service bound to the reselection parameter information.

[0085] The sending unit 602 is specifically configured to send cell reselection configuration information to the terminal device, so that the terminal device selects reselection parameter information bound to the multicast broadcast service of interest to the terminal device from multiple sets of reselection parameter information, and performs cell reselection according to the selected reselection parameter information.

[0086] In a possible implementation, the reselection parameter information indicates the reselection parameter with a cell as the granularity and / or indicates the reselection parameter with a frequency as the granularity.

[0087] In a possible implementation manner, the terminal is a terminal supporting cell DTX.

[0088] 7 , the access network device 700 in the present application includes a generating unit 701 and a sending unit 702. The acquiring unit 701 and the sending unit 702 can be implemented by software or hardware.

[0089] The generating unit 701 is configured to generate cell reselection configuration information, where the cell reselection configuration information includes the multicast broadcast services supported by the cell and / or frequency point, and whether the multicast broadcast service uses the cell DTX mode.

[0090] The sending unit 702 is configured to send cell reselection configuration information to the terminal, so that the terminal performs cell reselection according to the reselection configuration information.

[0091] In a possible implementation manner, the terminal is a terminal supporting cell DTX.

[0092] 8 , the terminal device 800 in the present application includes a receiving unit 801 and a processing unit 802. The receiving unit 801 and the processing unit 802 can be implemented by software or hardware.

[0093] Receiving unit 801 is used for a terminal device to receive cell reselection configuration information from an access network device, where the cell reselection configuration information includes reselection parameter information, where the reselection parameter information is used to indicate a reselection parameter for each of a plurality of cells, where the reselection parameter is a priority or a reselection offset, and where the plurality of cells include a cell of the access network device and / or a cell of a neighboring access network device of the access network device.

[0094] The reselection parameters are determined based on the cell's support for the multicast broadcast service using the cell DTX mode.

[0095] The processing unit 802 is configured to perform cell reselection according to the cell reselection configuration information.

[0096] In a possible implementation, the support status of the cell for the multicast broadcast service using the cell DTX mode includes the number of multicast broadcast services using the cell DTX mode supported by the cell.

[0097] In one possible implementation, the cell reselection configuration information includes multiple sets of reselection parameter information, where different reselection parameter information is bound to different multicast broadcast services. The cell's support for a multicast broadcast service using the cell DTX mode includes whether the cell supports a target multicast broadcast service using the cell DTX mode, where the target multicast broadcast service is the multicast broadcast service bound to the reselection parameter information.

[0098] The processing unit 802 is specifically configured to select reselection parameter information bound to the multicast broadcast service of interest to the terminal device from multiple sets of reselection parameter information;

[0099] The processing unit 802 is specifically configured to perform cell reselection according to the selected reselection parameter information.

[0100] In one possible implementation,

[0101] The processing unit 802 is specifically configured to, if the reselection parameter is a priority, determine a plurality of first cells having signal qualities greater than a threshold;

[0102] The processing unit 802 is specifically configured to determine priorities of multiple first cells according to the cell reselection configuration information;

[0103] The processing unit 802 is specifically configured to select a first cell with the highest priority for camping;

[0104] The processing unit 802 is specifically configured to, if the reselection parameter is a reselection offset, obtain R criterion values ​​of the plurality of second cells based on signal measurements of the plurality of second cells;

[0105] The processing unit 802 is specifically configured to determine reselection offsets of multiple second cells according to the cell reselection configuration information;

[0106] The processing unit 802 is specifically configured to add a reselection offset to the R criterion values ​​of the plurality of second cells to obtain modified R criterion values ​​of the plurality of cells.

[0107] The processing unit 802 is specifically configured to select a second cell for camping on, the second cell having a modified R criterion value greater than a threshold value.

[0108] 9 , the terminal device 900 in the present application includes a receiving unit 901 and a processing unit 902. The receiving unit 901 and the processing unit 902 may be implemented by software or hardware.

[0109] The receiving unit 901 is configured to receive cell reselection configuration information from an access network device, where the cell reselection configuration information includes the multicast broadcast services supported by the cell and / or frequency, and whether the multicast broadcast service uses a cell DTX mode.

[0110] The processing unit 902 is configured to perform cell reselection according to the reselection configuration information.

[0111] In a possible implementation manner, the terminal is a terminal supporting cell DTX.

[0112] Figure 10 is a schematic diagram of the structure of a device provided by the present application, which is used to implement the methods performed by the access network device or terminal device in the aforementioned embodiments. Device 1000 may include one or more central processing units (CPUs) 1001 and a memory 1005, wherein the memory 1005 stores one or more applications or data.

[0113] Memory 1005 may be volatile or persistent storage. The program stored in memory 1005 may include one or more modules, each of which may include a series of instruction operations on the server. Furthermore, central processing unit 1001 may be configured to communicate with memory 1005 and execute the series of instruction operations in memory 1005 on device 1000. Device 1000 may also include one or more power supplies 1002, one or more wired or wireless network interfaces 1003, one or more input / output interfaces 1004, and / or one or more operating systems.

[0114] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0115] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0116] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0117] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0118] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

Claims

1. A cell reselection method, characterized in that: include: The access network device generates cell reselection configuration information, where the cell reselection configuration information includes reselection parameter information, where the reselection parameter information is used to indicate a reselection parameter of each cell in a plurality of cells, where the reselection parameter is a priority or a reselection offset, where the plurality of cells include a cell of the access network device and / or a cell of a neighboring access network device of the access network device, and where the reselection parameter is determined based on support by the cell for a multicast broadcast service using a cell DTX mode; The access network device sends the cell reselection configuration information to the terminal device, so that the terminal device performs cell reselection according to the cell reselection configuration information.

2. The method according to claim 1, characterized in that The support status of the cell for the multicast broadcast service using the cell DTX mode includes the number of multicast broadcast services using the cell DTX mode supported by the cell.

3. The method according to claim 1, characterized in that The cell reselection configuration information includes multiple groups of reselection parameter information, and different reselection parameter information is bound to different multicast broadcast services; The cell's support for the multicast broadcast service using the cell DTX mode includes whether the cell supports a target multicast broadcast service using the cell DTX mode, where the target multicast broadcast service is the multicast broadcast service bound to the reselection parameter information; The access network device sending the cell reselection configuration information to the terminal device so that the terminal device performs cell reselection according to the reselection configuration information includes: The access network device sends the cell reselection configuration information to the terminal device, so that the terminal device selects the reselection parameter information bound to the multicast broadcast service of interest to the terminal device from the multiple sets of reselection parameter information, and performs cell reselection based on the selected reselection parameter information.

4. The method according to any one of claims 1 to 3, characterized in that The reselection parameter information indicates the reselection parameter with a cell as a granularity, and / or indicates the reselection parameter with a frequency point as a granularity.

5. The method according to claim 4, characterized in that The terminal device is a terminal device that supports cell DTX.

6. A cell reselection method, characterized in that: include: The access network device generates cell reselection configuration information, where the cell reselection configuration information includes a multicast broadcast service supported by the cell and / or frequency point, and whether the multicast broadcast service uses a cell DTX mode; The access network device sends cell reselection configuration information to the terminal device, so that the terminal device performs cell reselection according to the reselection configuration information.

7. The method according to claim 6, characterized in that The terminal device is a terminal device that supports cell DTX.

8. A cell reselection method, characterized in that: include: The terminal device receives cell reselection configuration information from an access network device, where the cell reselection configuration information includes reselection parameter information, where the reselection parameter information is used to indicate a reselection parameter of each of a plurality of cells, where the reselection parameter is a priority or a reselection offset, and the plurality of cells include a cell of the access network device and / or a cell of a neighboring access network device of the access network device; The reselection parameter is determined according to the cell's support for the multicast broadcast service using the cell DTX mode; The terminal device performs cell reselection according to the cell reselection configuration information.

9. The method according to claim 8, characterized in that The support status of the cell for the multicast broadcast service using the cell DTX mode includes the number of multicast broadcast services using the cell DTX mode supported by the cell.

10. The method according to claim 8, characterized in that The cell reselection configuration information includes multiple groups of reselection parameter information, and different reselection parameter information is bound to different multicast broadcast services; The cell's support for the multicast broadcast service using the cell DTX mode includes whether the cell supports a target multicast broadcast service using the cell DTX mode, where the target multicast broadcast service is the multicast broadcast service bound to the reselection parameter information; The terminal device performing cell reselection according to the cell reselection configuration information includes: The terminal device selects the reselection parameter information bound to the multicast broadcast service of interest to the terminal device from the multiple sets of reselection parameter information; The terminal device performs cell reselection according to the selected reselection parameter information.

11. The method according to claim 8 or 9, characterized in that The terminal device performing cell reselection according to the cell reselection configuration information includes: If the reselection parameter is the priority, the terminal device determines a plurality of first cells whose signal qualities are greater than a threshold value; The terminal device determines the priorities of the multiple first cells according to the cell reselection configuration information; The terminal device selects the first cell with the highest priority to reside in; If the reselection parameter is the reselection offset, the terminal device obtains R criterion values of the multiple second cells based on signal measurement of the multiple second cells; Determining, by the terminal device, the reselection offsets of the plurality of second cells according to the cell reselection configuration information; The terminal device adds the reselection offset to the R criterion values of the multiple second cells to obtain modified R criterion values of the multiple cells; The terminal device selects the second cell where the modified R criterion value is greater than the threshold value to reside.

12. The method according to claim 10, characterized in that The terminal device performing cell reselection according to the selected reselection parameter information includes: If the reselection parameter is the priority, the terminal device determines a plurality of first cells whose signal qualities are greater than a threshold value; The terminal device determines the priorities of the multiple first cells according to the cell reselection configuration information; The terminal device selects the first cell with the highest priority to reside in; If the reselection parameter is the reselection offset, the terminal device obtains R criterion values of the multiple second cells based on signal measurement of the multiple second cells; Determining, by the terminal device, the reselection offsets of the plurality of second cells according to the cell reselection configuration information; The terminal device adds the reselection offset to the R criterion values of the multiple second cells to obtain modified R criterion values of the multiple second cells; The terminal device selects the second cell where the modified R criterion value is greater than the threshold value to reside.

13. A cell reselection method, characterized in that: include: The terminal device receives cell reselection configuration information from the access network device, where the cell reselection configuration information includes a multicast broadcast service supported by the cell and / or frequency point, and whether the multicast broadcast service uses a cell DTX mode; The terminal device performs cell reselection according to the reselection configuration information.

14. The method according to claim 13, characterized in that The terminal is a terminal supporting cell DTX.

15. An access network device, characterized in that: The device comprises a processor and a memory, wherein the processor is coupled to the memory, and the memory is used to store instructions. When the instructions are executed by the processor, the access network device executes the method according to any one of claims 1 to 7.

16. A terminal device, characterized in that: The terminal device comprises a processor and a memory, wherein the processor is coupled to the memory, and the memory is used to store instructions. When the instructions are executed by the processor, the terminal device executes the method according to any one of claims 8 to 14.

17. A computer-readable storage medium, characterized in that Instructions are stored thereon, and when a computer executes the instructions, the computer performs the method according to any one of claims 1 to 14.

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