Wireless communication method and apparatus, device, and storage medium

Abstract

A wireless communication method and apparatus, a device, and a storage medium, relating to the technical field of mobile communications. A receiving method is executed by a terminal device, and comprises: receiving configuration information sent by a first cell, the configuration information being used by the terminal device to request first system information from a cell or a base station. A sending method is executed by a network device, and comprises: sending configuration information to a terminal device, the configuration information being used by the terminal device to request first system information from a cell or a base station. The network device sends the first system information to the terminal device on demand on the basis of a request of the network device, thereby ensuring the flexibility and controllability of the behavior of the terminal device acquiring the first system information from the cell or the base station.

Description

Wireless communication method, apparatus, device, and storage medium TECHNICAL FIELD

[0001] The present application relates to the technical field of mobile communication, and particularly relates to a wireless communication method, apparatus, device and storage medium. BACKGROUND

[0002] With the continuous development of mobile communication technology, the energy consumption of network equipment is also increasing.

[0003] In the related art, the network equipment can reduce the overhead of part of signaling to reduce the energy consumption of the network equipment.

[0004] SUMMARY

[0005] Embodiments of the present application provide a wireless communication method, apparatus, device and storage medium. The technical solution is as follows:

[0006] In one aspect, the present application provides a wireless communication method, which is executed by a terminal device, and the method further comprises:

[0007] receiving configuration information sent by a first cell, the configuration information being used for the terminal device to request first system information from a cell or a base station.

[0008] In one aspect, the present application provides a wireless communication method, which is executed by a network device, and the method further comprises:

[0009] sending configuration information to a terminal device, the configuration information being used for the terminal device to request first system information from a cell or a base station.

[0010] In one aspect, the present application provides a wireless communication method, which is executed by a network device, and the method comprises:

[0011] in a case where a system information request sent by a terminal device is received, sending first system information to the terminal device;

[0012] wherein the system information request is sent by the terminal device according to configuration information sent by a first cell, and the configuration information is used for the terminal device to request first system information from a cell or a base station.

[0013] In another aspect, the present application provides a wireless communication apparatus, which comprises:

[0014] a receiving module configured to receive configuration information sent by a first cell, the configuration information being used for the terminal device to request first system information from a cell or a base station.

[0015] In another aspect, an embodiment of the present application provides a wireless communication device, the device comprising:

[0016] a sending module configured to send configuration information to a terminal device, the configuration information being used by the terminal device to request first system information from a cell or a base station.

[0017] In another aspect, an embodiment of the present application provides a wireless communication device, the device comprising:

[0018] a sending module configured to send first system information to a terminal device upon receiving a system information request sent by the terminal device;

[0019] wherein the system information request is sent by the terminal device according to configuration information sent by a first cell, and the configuration information is used by the terminal device to request first system information from a cell or a base station.

[0020] In another aspect, an embodiment of the present application provides a terminal device, the terminal device comprising a processor, a memory and a transceiver;

[0021] the memory stores a computer program, and the processor executes the computer program to enable the terminal device to implement the above wireless communication method.

[0022] In another aspect, an embodiment of the present application provides a network device, the network device comprising a processor, a memory and a transceiver;

[0023] the memory stores a computer program, and the processor executes the computer program to enable the network device to implement the above wireless communication method.

[0024] In yet another aspect, an embodiment of the present application further provides a computer readable storage medium, the storage medium storing a computer program, the computer program being loaded and executed by a processor to implement the above wireless communication method.

[0025] In yet another aspect, the present application further provides a chip for running in a communication device to enable the communication device to execute the above wireless communication method.

[0026] In yet another aspect, the present application provides a computer program product, which comprises computer instructions stored in a computer readable storage medium. A processor of a communication device reads the computer instructions from the computer readable storage medium, and the processor executes the computer instructions to enable the communication device to execute the above wireless communication method.

[0027] In yet another aspect, the present application provides a computer program, which is executed by a processor of a communication device to implement the above wireless communication method.

[0028] The embodiment of the present application provides a wireless communication scheme. The network device makes the terminal device request first system information from a cell or a base station through configuration information by sending the configuration information to the terminal device, so that the network device can control the behavior of the terminal device for obtaining the first system information from the cell or the base station, and ensure the flexibility and controllability of the behavior of the terminal device for obtaining the first system information from the cell or the base station, thereby reducing the signaling overhead of the network for transmitting the system information and facilitating energy saving. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0030] FIG. 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present application;

[0031] FIG. 2 is a flowchart of a wireless communication method according to an embodiment of the present application;

[0032] FIG. 3 is a flowchart of a wireless communication method according to an embodiment of the present application;

[0033] FIG. 4 is a flowchart of a wireless communication method according to an embodiment of the present application;

[0034] FIG. 5 is a flowchart of a wireless communication method according to an embodiment of the present application;

[0035] FIG. 6 is a flowchart of a wireless communication method according to an embodiment of the present application;

[0036] FIG. 7 is a block diagram of a wireless communication device according to an embodiment of the present application;

[0037] FIG. 8 is a block diagram of a wireless communication device according to an embodiment of the present application;

[0038] FIG. 9 is a block diagram of a wireless communication device according to an embodiment of the present application;

[0039] FIG. 10 is a schematic diagram of the structure of a communication device according to an embodiment of the present application. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the present application more clear, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0041] The network architecture and service scenarios described in the embodiments of the present application are used to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that, with the evolution of network architecture and the appearance of new service scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0042] Please refer to FIG. 1, which shows a schematic diagram of a communication system related to the exemplary embodiments of the present application. The communication system includes a network device 110 and a terminal device 120, and / or the terminal device 120 and a terminal device 130, which are not limited by the present application.

[0043] The network device 110 in the present application provides wireless communication functions, which includes but is not limited to: an evolved node B (eNB), a radio network controller (RNC), a node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (for example, a home evolved node B or a home node B, HNB), a baseband unit (BBU), an access point (AP) in a wireless fidelity (Wi-Fi) system, a wireless relay node, a wireless backhaul node, a transmission point (TP) or a transmission and reception point (TRP), etc., and can also be a next generation node B (gNB) or a transmission point (TRP or TP) in a 5th generation (5G) mobile communication system, or an antenna panel or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or a network node constituting a gNB or a transmission point, such as a baseband unit (BBU) or a distributed unit (DU), etc., or a base station in a beyond 5th generation (B5G) or a 6th generation (6G) mobile communication system, or a core network (CN), a fronthaul, a backhaul, a radio access network (RAN), a network slice, etc., or a serving cell, a primary cell (PCell), a primary secondary cell (PSCell), a special cell (SpCell), a secondary cell (SCell), a neighboring cell, etc., of a terminal device.

[0044] The terminal device 120 and / or the terminal device 130 in the present application, also known as a user equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, a user device. The terminal includes but is not limited to: a handheld device, a wearable device, a vehicle-mounted device, and an Internet of Things device, etc., such as: a mobile phone, a tablet computer, an electronic book reader, a laptop computer, a desktop computer, a television, a game console, a mobile Internet device (MID), an augmented reality (AR) terminal, a virtual reality (VR) terminal, and a mixed reality (MR) terminal, a wearable device, a handle, an electronic tag, a controller, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, a wireless terminal in remote medical surgery, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a television set-top box (STB), a customer premise equipment (CPE), etc.

[0045] The network device 110 and the terminal device 120 communicate with each other through a certain air interface technology, such as a Uu interface.

[0046] For example, there are two communication scenarios between the network device 110 and the terminal device 120: uplink communication scenario and downlink communication scenario. Among them, the uplink communication refers to sending signals to the network device 110; the downlink communication refers to sending signals to the terminal device 120.

[0047] The terminal device 120 and the terminal device 130 communicate with each other through a certain air interface technology, such as a PC5 interface.

[0048] In some embodiments, there are two communication scenarios between the terminal device 120 and the terminal device 130: a first sidelink communication scenario and a second sidelink communication scenario. The first sidelink communication refers to sending a signal to the terminal device 130; the second sidelink communication refers to sending a signal to the terminal device 120.

[0049] The terminal device 120 and the terminal device 130 are both in network coverage and located in the same cell, or the terminal device 120 and the terminal device 130 are both in network coverage but located in different cells, or the terminal device 120 is in network coverage but the terminal device 130 is out of network coverage.

[0050] The technical solutions provided by the embodiments in the present application can be applied to various communication systems, for example: a Global System of Mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a General Packet Radio Service (GPRS), a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD) system, an Advanced Long Term Evolution (LTE-A) system, a Universal Mobile Telecommunication System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication system, a 5G mobile communication system, a New Radio (NR) system, an evolved system of the NR system, an LTE-based access to unlicensed spectrum (LTE-U) system, an NR-based access to unlicensed spectrum (NR-U) system, a Terrestrial Networks (TN) system, a Non-Terrestrial Networks (NTN) system, a Wireless Local Area Networks (WLAN), a Wireless Fidelity (Wi-Fi), a cellular Internet of Things system, a cellular passive Internet of Things system, and can also be applicable to an evolved system of the 5G NR system, and can also be applicable to a B5G, a 6G and an evolved system thereafter. In some embodiments of the present application, the "NR" can also be referred to as a 5G NR system or a 5G system. The 5G mobile communication system can include a Non-Standalone (NSA) and / or a Standalone (SA).

[0051] The technical solutions provided by the embodiments in the present application can also be applied to Machine Type Communication (MTC), Long Term Evolution-Machine (LTE-M), Device to Device (D2D) network, Machine to Machine (M2M) network, Internet of Things (IoT) network or other networks. The IoT network may, for example, include a vehicle network. In the vehicle network, the communication modes are collectively referred to as Vehicle to X (V2X, X can represent any object), for example, the V2X can include Vehicle to Vehicle (V2V) communication, Vehicle to Infrastructure (V2I) communication, Vehicle to Pedestrian (V2P) communication or Vehicle to Network (V2N) communication, etc.

[0052] Before introducing the technical solutions of the present application, some background technical knowledge related to the present application will be introduced and explained. The following related technologies can be combined with the technical solutions of the embodiments of the present application as optional solutions, and all belong to the protection scope of the embodiments of the present application. The embodiments of the present application include at least part of the following contents:

[0053] The main application scenarios of 5G are: Enhanced Mobile Broadband (eMBB), Ultra-Reliable Low Latency Communications (URLLC), and Massive Machine-Type Communications (mMTC).

[0054] eMBB aims to provide users with multimedia content, services and data, and its demand is growing rapidly. On the other hand, since eMBB can be deployed in different scenarios, such as indoor, urban, rural, etc., the differences in its capabilities and requirements are also quite large, so it cannot be generalized and must be analyzed in detail in combination with the specific deployment scenario. Typical applications of URLLC include industrial automation, power automation, remote medical operations (surgery), traffic safety assurance, etc. The typical characteristics of mMTC include high connection density, small data volume, delay-insensitive services, low-cost modules and long service life, etc.

[0055] NR can also be deployed independently, a new RRC state, i.e. RRC_INACTIVE state, is defined in 5G network environment for the purpose of reducing air interface signaling and fast recovery of wireless connection, and fast recovery of data service. This state is different from the idle (RRC_IDLE) and connected (RRC_CONNECTED) states.

[0056] RRC_IDLE state: mobility is based on UE's cell selection / reselection, paging is initiated by CN, and paging area is configured by CN. There is no UE AS context in the base station side, and there is no RRC connection.

[0057] RRC_CONNECTED state: there is RRC connection, and there is UE access stratum (AS) context in the base station and UE. The network side knows the location of the UE is specific to the cell level. Mobility is network-controlled mobility. Unicast data can be transmitted between the UE and the base station.

[0058] RRC_INACTIVE state: mobility is based on UE's cell selection / reselection, there is a connection between CN and NR, UE AS context exists in a certain base station, paging is triggered by RAN, RAN-based paging area is managed by RAN, and the network side knows the location of the UE is based on the RAN-based paging area level.

[0059] 5G network energy saving project research

[0060] Energy consumption has become an important part of the operator's operating costs. According to relevant reports, the energy cost of mobile networks accounts for about 23% of the total cost of operators. Most of the energy consumption comes from the radio access network, especially the active antenna unit (AAU), while the data center and fiber transmission only account for a small share. Power consumption includes two kinds:

[0061] 1) Dynamic part: such as consumption when data transmission / reception;

[0062] 2) Static part: such as the consumption of maintaining the necessary operation of wireless access equipment, even if there is no continuous data transmission / reception at this time.

[0063] The study should not only evaluate potential network energy consumption benefits, but also evaluate and balance the impact on network and user performance. For example, the study should not have a particularly large impact on some key performance indicators (KPIs) such as: spectral efficiency, capacity, user perceived throughput (UPT), delay, UE power consumption, complexity, handover performance, call drop rate, initial access performance, etc.

[0064] Referring to FIG. 2, a flowchart of a wireless communication method is shown, which can be executed by a terminal device. The terminal device can be the terminal device 120 or the terminal device 130 in the network architecture shown in FIG. 1. As shown in FIG. 2, the method can include the following steps:

[0065] At step 201, the terminal device receives configuration information sent by a first cell, and the configuration information is used for the terminal device to request first system information from the cell or the base station.

[0066] Optionally, the first cell is a cell that periodically sends the first system information; or the first cell is a non-energy saving cell; or the first cell is a cell that carries at least the first system information of the cell, or in other words, the first cell is a non-NES cell.

[0067] Optionally, the first cell can also be an NES cell.

[0068] The NES cell refers to a No Explicit System information (NES) cell. Optionally, the NES cell does not periodically broadcast the first system information; or the NES cell broadcasts the first system information based on the request of the terminal or other network devices; or the NES cell can be a cell that broadcasts or requires the terminal to listen to the first system information only within a specific time window.

[0069] In summary, the network device sends configuration information to the terminal device, so that the terminal device can request the first system information from the cell or the base station through the configuration information, so that the network device can control the behavior of the terminal device to obtain the first system information from the cell or the base station, and ensure the flexibility and controllability of the behavior of the terminal device to obtain the first system information from the cell or the base station, thereby reducing the signaling overhead of the network transmission system information to facilitate energy saving.

[0070] Please refer to FIG. 3, which shows a flow chart of a wireless communication method provided by an embodiment of the present application, which can be executed by a network device, wherein the network device can be the network device 110 in the network architecture shown in FIG. 1; as shown in FIG. 3, the method can include the following steps:

[0071] In step 301, the network device sends configuration information to the terminal device, and the configuration information is used by the terminal device to request the first system information from the cell or the base station.

[0072] The network device of the first cell can send the configuration information to the terminal device.

[0073] Optionally, the network device of the first cell can perform one or more of the following behaviors:

[0074] Send the system information containing the information indicating the configuration invalidation to the terminal device;

[0075] Send the indication of the invalidation or the change of the configuration information to the terminal device;

[0076] Send the change notification of the system information carrying the configuration information to the terminal device;

[0077] Send the first information to the terminal device; the first information is set for the configuration information or the system information carrying the configuration information;

[0078] Send the system message change notification to the terminal device, and the system message change notification is used to indicate the change of the first system information of the cell corresponding to the network device;

[0079] Send the second information to the terminal device; the second information is for the first system information.

[0080] In summary, the network device sends the configuration information to the terminal device, and the terminal device can request the first system information from the cell or the base station through the configuration information, so that the network device can control the behavior of the terminal device to acquire the first system information from the cell or the base station, ensure the flexibility and controllability of the behavior of the terminal device to acquire the first system information from the cell or the base station, and thus reduce the signaling overhead of the network to transmit the system information and facilitate energy saving.

[0081] Please refer to FIG. 4, which shows a flow chart of a wireless communication method provided by an embodiment of the present application, which can be executed by a network device, wherein the network device can be the network device 110 in the network architecture shown in FIG. 1; as shown in FIG. 4, the method can include the following steps:

[0082] At step 401, the network device sends first system information to the terminal device upon receiving a system information request sent by the terminal device; the system information request is sent by the terminal device according to configuration information sent by the first cell; the configuration information is used for the terminal device to request the first system information from the cell or the base station.

[0083] The network device of the cell corresponding to the configuration information can send the configuration information to the terminal device.

[0084] Optionally, the network device can further perform one or more of the following behaviors:

[0085] sending, to the terminal device, system information containing information indicating configuration invalidation;

[0086] sending, to the terminal device, an indication of configuration information invalidation or change;

[0087] sending, to the terminal device, a change notification of system information carrying the configuration information;

[0088] sending, to the terminal device, first information; the first information is set for the configuration information or the system information carrying the configuration information;

[0089] sending, to the terminal device, a system message change notification indicating that the first system message of the cell corresponding to the network device has changed;

[0090] sending, to the terminal device, second information; the second information is for the first system information.

[0091] In summary, the network device sends the configuration information to the terminal device, and the terminal device can request the first system information from the cell or the base station through the configuration information, so that the network device can control the behavior of the terminal device to obtain the first system information from the cell or the base station, ensuring the flexibility and controllability of the behavior of the terminal device to obtain the first system information from the cell or the base station, thereby reducing the signaling overhead of the network to transmit the system information and saving energy.

[0092] Please refer to FIG. 5, which shows a flowchart of a wireless communication method provided by an embodiment of the present application, which can be executed by the terminal device and the network device in interaction, wherein the terminal device can be the terminal device 120 or the terminal device 130 in the network architecture shown in FIG. 1, and the network device can be the network device 110 in the network architecture shown in FIG. 1; as shown in FIG. 4, the method can include the following steps:

[0093] At step 501, the network device sends configuration information to the terminal device, and the configuration information is used for the terminal device to request the first system information from the cell or the base station; correspondingly, the terminal device receives the configuration information sent by the network device.

[0094] In the embodiments of the present application, after receiving the configuration information sent by the network device, the terminal device can parse and store the configuration information in the memory, so as to request the first system information from the cell or the base station through the configuration information in case of access demand.

[0095] The first system information can include basic information and key parameters required by the terminal device to access the cell or the base station.

[0096] For example, the configuration information can include one or more of the following contents:

[0097] The terminal device can request the first system information from the cell or the base station under the request condition, at the request opportunity, in the request mode, and for the request times.

[0098] The terminal device can use the signal (such as the signal type and the signal format), the resource (such as the frequency domain resource, the time domain resource, and the resource set) and the like to request the first system information from the cell or the base station.

[0099] In some embodiments, the configuration information is constant or fixed, or all or part of the configuration information is variable.

[0100] The constant or fixed configuration information means that the content of the configuration information is constant or fixed, or the configuration information is configured and constant, or the configuration information is not updated after being configured, or the configuration information does not support updating of the content after being configured, or the configuration information is constant before being configured, or the configuration information is available in a specific area or location, or the configuration information is always available, or the configuration information only supports configuration and deconfiguration (deconfiguration), or the configuration information only supports overall configuration, storage and deletion. For example, after the network device configures the configuration information A to the terminal device, the content of the configuration information A is not updated before the configuration information A is deconfigured, and the terminal device also uses the configuration information A to request the first system information until the configuration information A is deconfigured. The network device can subsequently configure new configuration information B to the terminal device.

[0101] In the above configuration information, all or part of the information is variable, which means that all or part of the content of the configuration information can be changed by the network device, or the configuration information is allowed or can be updated after configuration, or the configuration information supports updating all or part of the content after configuration, or the configuration information supports storing and deleting part of the content. That is, the network device can change the content of the configuration information, for example, after the network device configures the configuration information C to the terminal device, part or all of the content in the configuration information C can be updated, and the updated content (such as the cell or resource indicated by the configuration information C) is notified to the terminal device, and the terminal device also replaces the updated content in the configuration information C locally.

[0102] For example, in the case that all or part of the information in the configuration information is changed, the network device can notify the terminal device through a specified message.

[0103] In some embodiments, the cell or the base station is a cell or a base station of a specified type.

[0104] In the embodiments of the present application, the above-mentioned cell or base station can be a cell or base station that does not actively send the first system information to the terminal device; or the above-mentioned cell or base station can be a cell or base station that does not periodically broadcast the first system information to the terminal device; or the above-mentioned cell or base station can be a cell or base station that broadcasts the first system information based on the request of the terminal device or other network devices.

[0105] In some embodiments, the specified type of cell is an energy-saving cell, a cell that sends the first system information based on a request, a cell corresponding to the configuration information, or an NES cell; and / or,

[0106] The specified type of base station is an energy-saving base station, a base station that sends the first system information based on a request, a base station corresponding to the configuration information, or an NES base station.

[0107] The above-mentioned energy-saving cell can be a cell configured with an energy-saving mechanism.

[0108] The above-mentioned cell that sends the first system information based on a request means that the cell of this type does not actively send the first system information to the terminal device, but can send the first system information to the terminal device in the case that the terminal device requests the first system information from it. For example, the specified type of cell is an on-demand cell.

[0109] The above-mentioned cell corresponding to the configuration information means the cell specified in the configuration information, or the cell corresponding to the configuration information.

[0110] The cell corresponding to the configuration information refers to a cell corresponding to a base station specified in the configuration information or a cell corresponding to a base station corresponding to the configuration information.

[0111] The base station corresponding to the configuration information refers to a base station specified in the configuration information.

[0112] The NES cell refers to a No Explicit System information (NES) cell; the NES cell does not periodically broadcast first system information; the NES cell is a cell that broadcasts first system information based on a request of a terminal or other network device; and the NES cell can be a cell that broadcasts or requires a terminal to listen to first system information only within a specific time window.

[0113] The energy-saving base station can be a base station configured with an energy-saving mechanism; the energy-saving base station can be a base station supporting on-demand first system information; and the energy-saving base station can be a base station corresponding to a cell supporting on-demand first system information.

[0114] The base station that transmits first system information based on a request refers to a base station of this type that does not actively transmit first system information to a terminal device, but can transmit first system information to a terminal device if the terminal device requests first system information from the base station. For example, the specified type of base station is an on-demand base station.

[0115] The base station corresponding to the configuration information refers to a base station specified in the configuration information.

[0116] The NES base station refers to a No Explicit System information (NES) base station; the NES base station does not periodically broadcast first system information; the NES base station can be a base station that broadcasts first system information based on a request of a terminal or other network device; the NES base station can be a base station that broadcasts or requires a terminal to listen to first system information only within a specific time window; the NES base station can be a base station corresponding to a cell that broadcasts or requires a terminal to listen to first system information based on a request of a terminal or other network device; and the NES base station can be a base station corresponding to a cell that broadcasts or requires a terminal to listen to first system information only within a specific time window.

[0117] In some embodiments, the first system information is SIB1.

[0118] The SIB1 can include basic information required by a terminal device UE for initial access, such as cell access restriction information, cell selection parameters, random access process parameters, and the like.

[0119] Based on the scheme shown in FIG. 5, refer to FIG. 6, which shows a flowchart of a wireless communication method provided by an embodiment of the application, which can be executed by a terminal device and a network device in interaction, wherein the terminal device can be the terminal device 120 or the terminal device 130 in the network architecture shown in FIG. 1, and the network device can be the network device 110 in the network architecture shown in FIG. 1; the method can further include the following steps:

[0120] In step 502, the terminal device requests the cell or the base station to send the first system information according to the configuration information; correspondingly, the cell or the base station sends the first system information to the terminal device.

[0121] That is, the terminal device can send a specified signal to the cell or the base station according to the information indicated by the configuration information, to request the first system information; correspondingly, the cell or the base station can send the first system information to the terminal device after receiving the specified signal.

[0122] In some embodiments, the configuration information is random access channel (RACH) configuration information, or uplink wake-up signal (UL WUS) configuration information.

[0123] The random access channel (RACH) configuration information (config) refers to information used to indicate how the terminal device (UE) requests the first system information from the cell or the base station in the 5G NR. For example, the RACH configuration information indicates how the terminal device (UE) sends a random access preamble, how the terminal device (UE) receives a random access response, and the like.

[0124] The uplink wake-up signal (UL WUS) configuration information refers to configuration information used by the UE to request the first system information from the cell or the base station in the 5G NR system, or information used to indicate how the terminal device (UE) sends the uplink wake-up signal (UL WUS) to request the first system information from the cell or the base station. For example, the UL WUS configuration information can include UL WUS resource pool, UL WUS signal format, UL WUS detection threshold, preamble resource of UL WUS, RO resource of UL WUS, and priority access parameters (such as backoff indicator offset (BI offset), power ramping, and other related parameters) of UL WUS.

[0125] That is, the configuration information can be random access channel (RACH) configuration information or uplink wake-up signal (UL WUS) configuration information. The network device can flexibly select the configuration information to be sent to the terminal device according to the state of the terminal device (UE). Correspondingly, the terminal device requests the first system information according to the resource information indicated by the configuration information, thereby effectively improving the flexibility and practicality of the technical solution of the present application.

[0126] In some embodiments, the above step 502 can be implemented as:

[0127] In the case where the configuration information is UL WUS configuration information, the terminal device sends an UL WUS to the cell or base station according to the resource indicated by the UL WUS configuration information. The UL WUS is used to request the cell or base station to send the first system information.

[0128] In the case where the configuration information is RACH configuration information, the terminal device sends a RACH message, a random access opportunity (RO) or a preamble to the cell or base station according to the resource indicated by the RACH configuration information. The RACH message, RO or preamble is used to request the cell or base station to send the first system information.

[0129] The resource indicated by the UL WUS configuration information can include frequency domain resources and time domain resources that can be used by the terminal device (UE) when sending the UL WUS. For example, the UL WUS configuration information indicates the allocation of resource blocks (RBs) and slots.

[0130] Correspondingly, if the configuration information sent by the network device to the terminal device (UE) is UL WUS configuration information, the terminal device (UE) can request the first system information from the cell or base station by sending an UL WUS according to the time domain and frequency domain resources indicated by the UL WUS configuration information.

[0131] For example, the UL WUS configuration information can also indicate the modulation method and coding method of the UL WUS.

[0132] The resource indicated by the RACH configuration information can include preamble sequence resources and random access opportunity (RO) resources. Specifically, the preamble sequence resources can include the length, index and resource allocation of the preamble sequence, and the random access opportunity (RO) can be used to indicate the frequency domain and time domain resources that can be used by the terminal device (UE) when sending the preamble sequence.

[0133] Correspondingly, if the configuration information sent by the network device to the terminal device UE is RACH configuration information, the terminal device UE can request the first system information from the cell or the base station in the manner of sending a RACH message, an RO or a preamble sequence according to the preamble sequence resource and the RO resource indicated by the RACH configuration information.

[0134] The embodiments of the present application show the feasibility of how the terminal device requests the first system information in the case of the configuration information being RACH configuration information or UL WUS configuration information, and clarify the specific working mode of the terminal device UE, thereby improving the accuracy of the technical solutions of the embodiments of the present application.

[0135] In some embodiments, in the case of the configuration information being unchanged or fixed, the configuration information is valid continuously.

[0136] That is, in the case of the content of the configuration information being unchanged or fixed, or the configuration information being configured, i.e., unchanged, or the configuration information being unchanged before being deconfigured, or the configuration information being available in a specific area or location, or the configuration information being available all the time, the configuration information received and stored by the terminal device UE is valid continuously. Correspondingly, in the case of requesting the cell or the base station to send the first system information, the terminal device UE can directly use the stored configuration information. Therefore, the network device does not need to frequently send new configuration information, and the terminal device UE does not need to frequently monitor and receive new configuration information, and the present solution can reduce signaling overhead, simplify the operation of the network device and the terminal device, and help reduce the power consumption of the network device and the terminal device.

[0137] In some embodiments, in the case of the configuration information being unchanged or fixed, the method comprises:

[0138] In the case of deconfiguring the above configuration information, the above configuration information is invalid;

[0139] The deconfiguring comprises one or more of the following:

[0140] The available duration of the configuration information reaches a duration threshold, and the duration threshold is network configured or predefined;

[0141] The current location of the terminal device is not within the network range corresponding to the configuration information, or the terminal device leaves the network range corresponding to the configuration information;

[0142] The new system information sent by the network does not contain the configuration information;

[0143] The new system information sent by the network contains information indicating that the configuration is invalid;

[0144] The terminal device receives an indication of the deconfigured or changed configuration information sent by the network.

[0145] wherein the de-configuration means that the configuration information stored in the terminal device is no longer used; accordingly, the terminal device UE does not request the first system information from the cell or the base station according to the de-configured configuration information, or the terminal device UE cannot request the first system information from the cell or the base station according to the de-configured configuration information.

[0146] For example, the de-configuration condition can be pre-configured or defined, and the configuration information is invalid when the de-configuration condition is met.

[0147] wherein the available time length of the configuration information reaches a time length threshold, means that the configuration information is configured or pre-defined with a time length threshold, which is used to indicate the validity period of the configuration information. For example, when the terminal device receives the configuration information reaches the time length threshold, or when the network device sends the configuration information reaches the time length threshold, the configuration information reaches the corresponding validity period, that is, the configuration information is invalid. For example, the configuration information is invalid 3 hours after the terminal device obtains the configuration information. That is, the terminal device can request the first system information from the cell or the base station according to the configuration information within 3 hours of obtaining the configuration information.

[0148] wherein the current location of the terminal device is not within the network range corresponding to the configuration information, or the terminal device leaves the network range corresponding to the configuration information, which can be that the terminal device has moved to a new location, and the location is not within the network coverage range corresponding to the configuration information. For example, the configuration information is invalid when the terminal device leaves the Public Land Mobile Network (PLMN) or Tracking Area (TA) or TA list or cell or base station or area corresponding to the configuration information. Accordingly, the terminal device can obtain the configuration information corresponding to the network device of the current location to request the first system information.

[0149] wherein the new system information sent by the network does not contain the configuration information, which can be that the network device sends the configuration information, or sends the new system information SIB to the terminal device after sending the system information containing the configuration information, and the system information does not contain the configuration information. At this time, the configuration information sent by the network device before is invalid.

[0150] wherein the new system information sent by the network contains information indicating that the configuration is invalid, which can be that the network device sends the configuration information, or sends the new system information SIB to the terminal device after sending the system information containing the configuration information, and the information contained in the system information indicates that the previous configuration information is invalid. At this time, the configuration information sent by the network device before is invalid.

[0151] The indication that the configuration information received by the terminal device from the network is invalid or changed means that after the network device sends the configuration information, an indication information is sent to the terminal device, which indicates that the previously sent configuration information is invalid or has been updated. Accordingly, the terminal device can receive the indication information and further know that the stored configuration information has been invalidated.

[0152] The embodiments of the present application show a plurality of possible cases of invalidation of configuration information. In the case of invalidation of configuration information, the terminal device can delete the invalidated configuration information from the memory, and the network device can stop receiving signals or messages related to the invalidated configuration information. Therefore, the present scheme can improve the controllability of the configuration information and further optimize the energy saving effect of the network device.

[0153] In some embodiments, in the case that all or part of the information in the configuration information is variable, the wireless communication method further comprises:

[0154] The terminal device performs a first action, and the first action comprises one or more of the following:

[0155] determining that the stored configuration information is invalid, updating the configuration information, deleting the stored configuration information, obtaining new configuration information, and performing a cell reselection process to reselect to another cell.

[0156] In the above configuration information, all or part of the information is variable, which means that the network device has changed all or part of the information in the configuration information. At this time, the network device can send the changed configuration information to the terminal device. Accordingly, the terminal device can receive the changed configuration information.

[0157] The determination that the stored configuration information is invalid can be that the terminal device marks all or part of the stored configuration information as invalid information.

[0158] The updating of the configuration information can be that the terminal device updates the invalid information in the configuration information to valid information, or updates all the information in the configuration information, or deletes the invalid information in the configuration information, or retains the valid information in the configuration information.

[0159] The deletion of the stored configuration information can be that the terminal device deletes all or part of the stored configuration information to save the storage resources of the terminal device.

[0160] The obtaining of new configuration information can be that the terminal device re-obtains the configuration information sent by the network device.

[0161] The performing the cell reselection procedure refers to a process in which the terminal device reselects and camps on another cell.

[0162] The embodiment of the present application shows the specific content of the first behavior that the terminal device can perform in the case that all or part of the information in the configuration information is variable, which can ensure the accuracy of the configuration information used by the terminal device to acquire the first system information, and further improve the accuracy of the terminal device to acquire the first system information.

[0163] In some embodiments, the terminal device performs the first behavior in the case that at least one of the following conditions is met:

[0164] The terminal device does not request the first system information of the second cell according to the configuration information;

[0165] The terminal device leaves the second cell in which it currently camps;

[0166] The terminal device reselects another cell from the second cell in which it currently camps;

[0167] The terminal device receives a configuration update notification sent by the second cell; correspondingly, the network device corresponding to the second cell can send the configuration update notification;

[0168] The terminal device receives a change notification of system information carrying the configuration information sent by the second cell; correspondingly, the network device corresponding to the second cell can send the change notification of system information carrying the configuration information;

[0169] The terminal device receives a configuration update notification sent by the first cell; correspondingly, the network device corresponding to the first cell can send the configuration update notification;

[0170] The terminal device receives a change notification of system information carrying the configuration information sent by the first cell; correspondingly, the network device corresponding to the first cell can send the change notification of system information carrying the configuration information;

[0171] The terminal device reselects or moves to the first cell after leaving the first cell;

[0172] The terminal device reselects or moves to the second cell after leaving the first cell;

[0173] The terminal device reselects or moves to the second cell;

[0174] The second cell is a cell of a specified type, or the second cell is a cell corresponding to a base station of a specified type.

[0175] The terminal device does not request the first system information of the second cell according to the configuration information, which can mean that the terminal device does not successfully request the first system information from the cell or the base station, or the cell or the base station does not successfully send the first system information to the terminal device, or the terminal device does not receive or does not receive within a certain time or does not successfully receive the first system information sent by the cell or the base station. At this time, the terminal device can perform the first behavior described above. For example, the terminal device can perform a cell reselection process to reselect to another cell, delete the previously stored configuration information after reselecting to a new cell, and / or obtain and store the configuration information corresponding to the new cell, and / or the terminal device can request the first system information from the new cell.

[0176] The terminal device leaves the currently camped second cell, which can mean that the terminal device moves its own position and moves out of the range corresponding to the currently camped second cell, or the UE moves to the edge of the second cell. At this time, the terminal device can perform the first behavior described above. For example, the terminal device can delete the stored configuration information corresponding to the second cell. Further, the terminal device deletes the stored configuration information corresponding to other cells, which also belong to the specified cells described above.

[0177] The terminal device reselects from the currently camped second cell to another cell, which means that the current position of the terminal device corresponds to the range of multiple cells, and the terminal device can change the currently camped cell to another new cell in the multiple cells. At this time, the terminal device can perform the first behavior described above. For example, the terminal device can delete the stored configuration information corresponding to the second cell, and / or receive and store the configuration information corresponding to the new cell; optionally, the terminal can delete the stored configuration information corresponding to all cells. Optionally, the terminal device can request the first system information from the new cell.

[0178] The terminal device receives the configuration update notification sent by the second cell, which means that the terminal device learns that the stored configuration information corresponding to the second cell has changed according to the configuration update notification sent by the second cell. At this time, the terminal device can perform the first behavior described above. For example, the terminal device can update the configuration information corresponding to the second cell; and / or the terminal device can request the first system information from the second cell according to the new configuration information. Optionally, the terminal device can request the first system information from the second cell according to the new configuration information, which can occur after the terminal device updates the configuration information corresponding to the second cell. Optionally, the terminal device can update the configuration information corresponding to all cells.

[0179] The terminal device receiving the change notification of the system information carrying the configuration information sent by the second cell means that the terminal device receives the change notification of the system information sent by the second cell, and learns from the change notification that the stored configuration information corresponding to the second cell is possibly changed. At this time, the terminal device can receive and parse the configuration information carried in the system information, and in the case that the configuration information corresponding to the second cell is changed, the terminal device can perform the above-mentioned first behavior. For example, the terminal device can update the configuration information corresponding to the second cell; and / or, the terminal device can request the first system information from the second cell according to the new configuration information. Optionally, the terminal device can request the first system information from the second cell according to the new configuration information, which can occur after the terminal device can update the configuration information corresponding to the second cell. Optionally, the terminal device can update the configuration information corresponding to all the cells.

[0180] The terminal device receiving the change notification of the system information carrying the configuration information sent by the second cell means that the terminal device receives the change notification of the system information sent by the second cell, and learns from the change notification that the stored configuration information corresponding to the second cell is possibly changed. At this time, the terminal device can receive and parse the configuration information carried in the system information, and in the case that the configuration information corresponding to the second cell is changed, the terminal device can perform the above-mentioned first behavior. For example, the terminal device can update the configuration information corresponding to the second cell; and / or, the terminal device can request the first system information from the second cell according to the new configuration information. Optionally, the terminal device can request the first system information from the second cell according to the new configuration information, which can occur after the terminal device can update the configuration information corresponding to the second cell. Optionally, the terminal device can update the configuration information corresponding to all the cells.

[0181] The terminal device receiving the change notification of the system information carrying the configuration information sent by the second cell means that the terminal device receives the change notification of the system information sent by the second cell, and learns from the change notification that the stored configuration information corresponding to the second cell is possibly changed. At this time, the terminal device can receive and parse the configuration information carried in the system information, and in the case that the configuration information corresponding to the second cell is changed, the terminal device can perform the above-mentioned first behavior. For example, the terminal device can update the configuration information corresponding to the second cell; and / or, the terminal device can request the first system information from the second cell according to the new configuration information. Optionally, the terminal device can request the first system information from the second cell according to the new configuration information, which can occur after the terminal device can update the configuration information corresponding to the second cell. Optionally, the terminal device can update the configuration information corresponding to all the cells.

[0182] After the terminal device leaves the first cell, reselects or moves to the first cell, the terminal device can perform the first behavior. For example, the terminal device can reacquire the configuration information of the first cell; and / or, the terminal device can request the first system information from the first cell according to the newly acquired configuration information. Optionally, the terminal device can request the first system information from the first cell according to the new configuration information can occur after the terminal device can update the configuration information corresponding to the first cell. Optionally, the terminal device can update the configuration information corresponding to all stored cells.

[0183] After the terminal device leaves the first cell, reselects or moves to the second cell, the terminal device can perform the first behavior. For example, the terminal device can reacquire the configuration information of the second cell; and / or, the terminal device can request the first system information from the second cell according to the newly acquired configuration information. Optionally, the terminal device can request the first system information from the second cell according to the new configuration information can occur after the terminal device can update the configuration information corresponding to the second cell. Optionally, the terminal device can update the configuration information corresponding to all stored cells.

[0184] After the terminal device leaves the first cell, reselects or moves to the second cell, the terminal device can perform the first behavior. For example, the terminal device can reacquire the configuration information of the second cell; and / or, the terminal device can request the first system information from the second cell according to the newly acquired configuration information. Optionally, the terminal device can request the first system information from the second cell according to the new configuration information can occur after the terminal device can update the configuration information corresponding to the second cell. Optionally, the terminal device can update the configuration information corresponding to all stored cells.

[0185] That is, whether the terminal device performs the first behavior can be determined by the position of the terminal device and the received notification and information, which can ensure that the terminal device updates the configuration information for acquiring the first system information in time and accurately, and improves the accuracy of the terminal device in acquiring the first system information.

[0186] In some embodiments, the above-mentioned acquiring new configuration information can be implemented as: in the case of reselecting to the first cell, the terminal device acquires the new configuration information from the first cell.

[0187] Optionally, the first cell is a cell carrying the configuration information; or, the first cell is a cell periodically sending the first system information; or, the first cell is a non-power saving cell; or, the first cell is a cell carrying at least the first system information of the cell.

[0188] That is, in a case where the cell selected by the terminal device for camping is the first cell, the terminal device can acquire the configuration information sent by the first cell again to update the previously stored configuration information.

[0189] In some embodiments, in a case where the configuration update condition comprises that the terminal device receives a configuration update notification sent by the first cell, or the terminal device receives a change notification of system information carrying the configuration information sent by the first cell, or the terminal device reselects or moves to the first cell after leaving the first cell, or the terminal device reselects or moves to the first cell, the above acquiring the new configuration information can be implemented as: receiving the new configuration information sent by the first cell.

[0190] That is, in a case where the terminal device receives the configuration update notification or the change notification related to the second cell sent by the first cell, and the cell selected by the terminal device for camping is the first cell, the terminal device can directly acquire the configuration information sent by the first cell to update the previously stored configuration information.

[0191] In some embodiments, the above receiving the new configuration information sent by the first cell can be implemented as: receiving the new configuration information sent by the first cell through system information, a paging message or a short message.

[0192] That is, the network device can send the new configuration information to the terminal device through one of system information (such as master information block MIB, SIB1 or other SIBs), a paging message or a short message; correspondingly, the terminal device receives the new configuration information.

[0193] In some embodiments, the above receiving the new configuration information sent by the second cell can be implemented as: receiving the new configuration information sent by the first cell at a next first system information location; or, receiving the new configuration information sent by the first cell at a next system information modification period.

[0194] The above next first system information location refers to a location at which the first cell sends the first system information to the terminal device next time, and the terminal device can receive the new configuration information sent by the first cell at the location. Illustratively, the above next first system information location can be a next first system information location after the terminal device receives the configuration update notification or the change notification.

[0195] The next system information modification period refers to an update period of the system information SIB, and the terminal device can receive new configuration information sent by the first cell at the update period. For example, the next system information modification period can be the next system information modification period after the terminal device receives the configuration update notification or the change notification.

[0196] That is, the network device can carry the updated configuration information at the position of sending the next first system information or the next system information modification period, so that the terminal device can receive the new configuration information, thereby simplifying the design work, reducing the standardization complexity, and improving the efficiency of configuration information update.

[0197] In some embodiments, the new configuration information sent by the first cell includes information corresponding to the second cell; or the new configuration information sent by the first cell includes information corresponding to the second cell and information corresponding to other cells except the second cell.

[0198] The other cells except the second cell can be the specified type of cell, or can be the cell corresponding to the specified type of base station.

[0199] That is, the new configuration information sent by the first cell can include configuration information of the second cell currently corresponding to the terminal device, or can include configuration information of other cells except the second cell, so that the network device can send configuration information of multiple cells in the process of sending the new configuration information, thereby improving the resource utilization of the network device, and saving the signaling overhead of the network device to reduce the consumption of the network device.

[0200] In some embodiments, when the configuration update condition includes that the terminal device receives a configuration update notification sent by the second cell, or the terminal device receives a change notification of system information carrying configuration information sent by the second cell, or the terminal device reselects or moves to the second cell after leaving the first cell, or the terminal device reselects or moves to the second cell, the terminal device can receive new configuration information sent by the second cell to obtain the new configuration information.

[0201] That is, in the case of receiving the configuration update notification or the change notification related to the second cell and the terminal device selecting the second cell as the cell to camp on, the terminal device can directly obtain the configuration information sent by the second cell to update the previously stored configuration information.

[0202] In some embodiments, the receiving the new configuration information sent by the second cell can be implemented by receiving the new configuration information sent by the second cell through system information, a paging message, or a short message.

[0203] That is, the network device of the second cell can send the new configuration information to the terminal device through one of system information (such as master information block MIB, SIB1 or other SIB), a paging message, and a short message; and the terminal device receives the new configuration information accordingly.

[0204] In some embodiments, the receiving of the new configuration information sent by the second cell can be implemented by receiving the new configuration information sent by the second cell at a next first system information location, or receiving the new configuration information sent by the second cell at a next system information modification period.

[0205] The next first system information location refers to a location at which the second cell sends the first system information to the terminal device next time, and the terminal device can receive the new configuration information sent by the second cell at the location. For example, the next first system information location can be a next first system information location after the terminal device receives the configuration update notification or the change notification.

[0206] The next system information modification period refers to an update period of the system information SIB, and the terminal device can receive the new configuration information sent by the second cell at the update period. For example, the next system information modification period can be a next system information modification period after the terminal device receives the configuration update notification or the change notification.

[0207] That is, the network device (such as the network device corresponding to the second cell) can carry the updated configuration information at the location of sending the next first system information or the next system information modification period, so that the terminal device can receive the new configuration information, thereby simplifying the design work, reducing the standardization complexity, and improving the efficiency of configuration information update.

[0208] In some embodiments, the new configuration information includes information corresponding to the second cell; or the new configuration information includes information corresponding to the second cell and information corresponding to other cells except the second cell.

[0209] The other cells except the second cell can be the cells of the specified type, or can be the cells corresponding to the base stations of the specified type.

[0210] That is, the new configuration information can contain configuration information of the second cell currently corresponding to the terminal device, or can contain configuration information of other cells other than the second cell, so that the network device can send configuration information of multiple cells in the process of sending the new configuration information, improve the resource utilization of the network device, and further save the signaling overhead of the network device, to reduce the consumption of the network device.

[0211] In some embodiments, the wireless communication method further includes: in a case where the first system information of the second cell is not acquired, the terminal device requests the second cell to send the first system information according to the new configuration information.

[0212] The reason why the terminal device fails to successfully request the first system information of the second cell can be that the configuration information has changed. Therefore, in a case where the terminal device requests the second cell to send the first system information according to the stored configuration information and the first system information of the second cell is not acquired, the terminal device can acquire the new configuration information and request the second cell to send the first system information according to the new configuration information.

[0213] In some embodiments, the configuration update notification is carried by one or more of the following messages: a paging message, a short message.

[0214] That is, the paging message and the short message can carry the configuration update notification. The present scheme uses the existing signaling mechanism to send the configuration update notification to the terminal device, which can simplify the design work of the wireless communication method and reduce the standardization complexity.

[0215] In some embodiments, the terminal device considers that the configuration information has been updated in a case where at least one of the following conditions is met:

[0216] The first information carried by the network is different from the first information stored by the terminal device;

[0217] The first information carried by the network is received or read.

[0218] In the case where the terminal device receives the information sent by the network device, the terminal device can read the information and compare the first information in the information with the stored first information. In the case where the first information in the information is different from the first information stored by the terminal device, the terminal device can know that the configuration information of the cell or base station indicated by the first information has been updated.

[0219] Alternatively, in the case where the terminal device receives the information sent by the network device, the terminal device can read the information. In the case where the terminal device reads the first information carried in the information, the terminal device can know that the configuration information of the cell or base station indicated by the first information has been updated.

[0220] That is, the terminal device can determine whether the configuration information is updated according to the first message sent by the network device, and the present solution explicitly shows the way for the terminal device to learn that the configuration information is updated, and the terminal device does not need to parse and compare the content of the configuration information one by one, thereby reducing the working complexity of the terminal device and improving the working efficiency of the terminal device.

[0221] In some embodiments, in the case where the terminal device considers that the configuration information is updated, the terminal device performs a second behavior, and the second behavior includes one or more of the following: determining that the stored configuration information is invalid; updating the configuration information; deleting the stored configuration information; obtaining new configuration information; performing a cell reselection process to reselect another cell.

[0222] That is, in the case where the configuration information is updated, the terminal device can perform the second behavior.

[0223] The above-mentioned determination that the stored configuration information is invalid can be that the terminal device marks all or part of the stored configuration information as invalid information. The above-mentioned updating of the configuration information can be that the terminal device updates the invalid information in the configuration information to valid information. The above-mentioned deletion of the stored configuration information can be that the terminal device deletes all or part of the stored configuration information to save the storage resources of the terminal device. The above-mentioned obtaining of new configuration information can be that the terminal device re-obtains the configuration information sent by the network device. The above-mentioned performing of the cell reselection process refers to the process of reselecting and camping on another cell by the terminal device.

[0224] In some embodiments, the first information is set for the configuration information or the system information carrying the configuration information.

[0225] The above-mentioned setting of the first information for the configuration information means that the first information corresponds to / associates with the above-mentioned configuration information.

[0226] The above-mentioned setting of the first information for the system information carrying the configuration information means that the first information can correspond to / associate with the system information carrying the configuration information.

[0227] In some embodiments, the first information is carried by the system information.

[0228] That is, the first information can be carried in the system message. For example, the first information can be carried in the master information block (MIB). For another example, the first information can be carried in other system information, such as SIB1 or a new SIB.

[0229] In some embodiments, the first information is for a single specified type of cell; or the first information is for multiple specified types of cells.

[0230] That is, the first information described above can indicate that the configuration information of one or more specified types of cells has changed.

[0231] For example, in the case where the configuration information of multiple specified types of cells has changed, the network device can inform the terminal device of the change through the same first information. Therefore, in the case where the configuration information of multiple specified types of cells has changed, the present scheme can save the signaling overhead of the network device indicating that the configuration information has changed to multiple terminal devices, and further optimize the energy saving effect of the network device.

[0232] In some embodiments, the first information is carried in the second cell, and can also be carried in the first cell.

[0233] In some embodiments, the first information is a value tag and / or an area tag.

[0234] The value tag (Value Tag) described above can be an integer value, which can indicate the version information of the configuration information. In the case where the value tag is different, the terminal device can know that the network device has updated the configuration information.

[0235] The area tag (Area Scope) described above can indicate the applicable scope of the configuration information. In the case where the area tag is different, the terminal device can know that the network device has updated the configuration information.

[0236] In some embodiments, the wireless communication method further includes:

[0237] The third cell sends a system message change notification to the terminal device; correspondingly, the terminal device receives the system message change notification sent by the third cell, and the system message change notification is used to indicate that the first system message of the third cell has changed.

[0238] The third cell is a cell of a specified type, or the third cell is a cell corresponding to a base station of a specified type.

[0239] That is, the third cell can inform the terminal device that the content of the first system message corresponding to the third cell has changed by sending a system message change notification to the terminal device.

[0240] In some embodiments, the system message change notification is carried by one or more of the following messages: a paging message, a short message.

[0241] That is, the third cell can carry the system message change notification in the paging message and / or the short message, so as to send the system message change notification to the terminal device at the same time when the third cell sends the paging message and / or the short message to the terminal device. The scheme sends the configuration update notification to the terminal device by using the existing signaling mechanism, which can simplify the design of the wireless communication method and reduce the standardization complexity.

[0242] In some embodiments, the terminal device considers that the first system information of the third cell is updated when at least one of the following conditions is met:

[0243] The second information carried by the network is different from the second information stored by the terminal device;

[0244] The second information carried by the network is received or read by the terminal device;

[0245] The third cell is a cell of a specified type, or the third cell is a cell corresponding to a base station of a specified type.

[0246] That is, the terminal device can determine whether the configuration information is updated according to the second message sent by the network device. The scheme specifies the way for the terminal device to learn that the first system information is updated, which can reduce the working complexity of the terminal device and improve the working efficiency of the terminal device.

[0247] In some embodiments, when the terminal device considers that the first system information is updated, the terminal device performs a third action, and the third action includes one or more of the following: determining that the stored first system information is invalid; updating the first system information; deleting the stored first system information; and obtaining new first system information.

[0248] That is, in the case where the first system information is updated, the terminal device can perform the third action.

[0249] The determination that the stored first system information is invalid can be that the terminal device marks all or part of the stored first system information as invalid information. The updating of the first system information can be that the terminal device updates the invalid information in the first system information to valid information. The deletion of the stored first system information can be that the terminal device deletes all or part of the stored first system information to save the storage resources of the terminal device. The obtaining of the new first system information can be that the terminal device re-requests the first system information from the third cell according to the configuration information.

[0250] In some embodiments, the second information is for the first system information.

[0251] That is, the second information can be designed for the first system information and used to indicate the change of the first system information.

[0252] In some embodiments, the second information is carried by system information.

[0253] For example, the second information can be carried in a master information block (MIB).

[0254] In some embodiments, the second information is for a single specified type of cell; or the second information is for multiple specified types of cells.

[0255] That is, the above-mentioned second information can indicate that the first system information of the third cell has changed; or the above-mentioned second information can also indicate that the first system information of one or more other specified types of cells other than the third cell has changed.

[0256] For example, in the case where the first system information of the third cell and other specified types of cells other than the third cell has changed, the network device can inform the terminal device of the change of the first system information of multiple cells through the same second information. Therefore, the present scheme can save the signaling overhead of the network device when indicating the change of the first system information to multiple terminal devices, and further optimize the energy saving effect of the network device.

[0257] In some embodiments, the second information is a value tag and / or an area tag.

[0258] The above-mentioned value tag (Value Tag) can be an integer value, which can indicate the version information of the configuration information. In the case where the value tag is different, the terminal device can know that the network device has updated the configuration information.

[0259] The above-mentioned area tag (Area Scope) can indicate the applicable scope of the configuration information. In the case where the area tag is different, the terminal device can know that the network device has updated the configuration information.

[0260] In some embodiments, the above-mentioned wireless communication method further comprises: the terminal device reacquires the first system message of the third cell.

[0261] That is, after receiving the system message change notification sent by the third cell, the terminal device can again request the third cell to send the updated first system information according to the configuration information.

[0262] In some embodiments, the above-mentioned reacquiring the first system message of the third cell can be implemented as: at the next first system information location, the terminal device receives the first system message of the third cell sent by the third cell; or at the next system information modification period, the terminal device receives the first system message of the third cell sent by the third cell.

[0263] The next first system information location refers to a location at which the third cell next transmits the first system information to the terminal device after transmitting the system message change notification. The terminal device can receive the new first system information transmitted by the third cell at the location. For example, the next first system information location can be a next first system information location after the terminal device receives the system message change notification.

[0264] The next system information modification period refers to an update period of the system information SIB. The terminal device can receive the new first system information transmitted by the third cell when the update period is reached. For example, the next system information modification period can be a next system information modification period after the terminal device receives the system message change notification.

[0265] That is, the network device can transmit the updated first system information at the next first system information location or the next system information modification period, so that the terminal device can receive the new first system information in time, thereby simplifying the design work, reducing the standardization complexity, and improving the efficiency of the terminal device in acquiring the updated first system information.

[0266] In some embodiments, the first system information of the second cell carries paging-related configuration information. Further, the second cell notifies the UE of the first system information change through a short message or paging. In the case where the second cell notifies the UE of the first system information change through a short message or paging, the updated first system information is notified at the next system information location or the next system information change period. Accordingly, the UE acquires the updated first system information at the next system information location or the next system information change period.

[0267] In some embodiments, the first system information of the second cell carries paging-related configuration information. Further, the second cell notifies the UE of the first system information change through a short message or paging. In the case where the second cell notifies the UE of the first system information change through a short message or paging, the UE receives the first system information in a specific time period. If the first system information is not received, the UE reselects to another cell, or the UE requests the first system information based on the stored configuration information.

[0268] In some embodiments, the first system information of the second cell carries the paging related configuration information and the related information of the configuration information. Further, the second cell notifies the UE of the first system information change through a short message or paging. In the case that the second cell notifies the UE of the first system information change through the short message or paging, the UE is notified of the updated first system information at the next system information location or the next system information change period. Accordingly, the UE acquires the updated first system information at the next system information location or the next system information change period as mentioned above.

[0269] In some embodiments, the first system information of the second cell carries the paging related configuration information and the related information of the configuration information. Further, the second cell notifies the UE of the first system information change through a short message or paging. In the case that the second cell notifies the UE of the first system information change through the short message or paging, the UE receives the first system information in a specific time period. If the first system information is not received, the UE reselects to other cells, or the UE requests the first system information based on the stored configuration information, or the UE reselects to other cells without requesting the first system information.

[0270] In some embodiments, the first system information change of the second cell is notified through a short message or paging. Accordingly, the UE considers the first system information of the second cell valid before receiving the first system information change notified through the short message or paging, and / or stores the first system information of the second cell, and / or considers the first system information of the second cell invalid in the case of receiving the first system information change notified through the short message or paging, and / or deletes the stored first system information of the second cell, and / or reselects to acquire the first system information of the second cell.

[0271] In some embodiments, in the case that the stored configuration information of the second cell of the UE is invalid, the UE fails to acquire the first system information of the second cell based on the stored configuration information of the second cell, and / or the UE finally reselects to other cells, and / or the UE finally reacquires the configuration information of the second cell from the first cell. Further, the UE requests the first system information of the second cell based on the updated configuration information of the second cell.

[0272] In some embodiments, in the case that the UE acquires the notification message that the configuration information of the second cell is invalid or changed, the UE fails to acquire the first system information of the second cell based on the stored configuration information of the second cell, and / or, the UE finally reselects to another cell, and / or, the UE finally reacquires the configuration information of the second cell from the first cell. Further, the UE requests the first system information of the second cell based on the updated configuration information of the second cell. Optionally, the notification message that the configuration information of the second cell is invalid or changed is from the network, and / or, the notification message that the configuration information of the second cell is invalid or changed is notified to the UE by paging or short message. Optionally, the network that notifies the above-mentioned update message (i.e., the above-mentioned notification message that the configuration information is invalid or changed) is the first cell or the second cell.

[0273] In some embodiments, the above-mentioned wireless communication method further comprises:

[0274] In the case that the terminal device leaves the third cell, or, the terminal device reselects to the fourth cell from the third cell, the terminal device performs a fourth behavior, and the fourth behavior comprises one or more of the following:

[0275] determining that the previously stored first system information of the third cell is invalid;

[0276] deleting the previously stored first system information of the third cell.

[0277] In some embodiments, the above-mentioned wireless communication method further comprises:

[0278] Correspondingly, the first system information of the third cell stored by the terminal device is invalid; or, the terminal device can delete the previously stored first system information of the third cell, so as to save the storage resource of the terminal device.

[0279] In some embodiments, the above-mentioned wireless communication method further comprises:

[0280] In the case that the terminal device returns to the third cell again, or, the terminal device reselects to the third cell again, or, the terminal device reselects to the third cell from the fourth cell again, a fifth behavior is performed, and the fifth behavior comprises one or more of the following:

[0281] determining that the previously stored first system information of the third cell is invalid;

[0282] deleting the previously stored first system information of the third cell;

[0283] reacquire the first system information of the third cell;

[0284] request the first system information of the third cell based on the configuration information of the third cell.

[0285] The terminal device reselecting to the third cell again can be that the terminal device moves to and camps on the third cell again after leaving the third cell.

[0286] The current location of the terminal device can correspond to the range of multiple cells, and the terminal device can replace the currently camped cell with one of the multiple cells. The terminal device reselecting to the third cell again can be that the terminal device reselects to the third cell again. The terminal device reselecting from the third cell to the fourth cell and then reselecting to the third cell can be that the terminal device reselects to the fourth cell, leaves the fourth cell, and then reselects to the third cell.

[0287] Correspondingly, the first system information of the third cell stored by the terminal device is invalid; or the terminal device can delete the previously stored first system information of the third cell to save the storage resource of the terminal device; or the terminal device reacquires the first system information of the third cell; or the terminal device requests the third cell to send the first system information according to the configuration information.

[0288] The following four embodiments are taken as examples to introduce the scheme involved in the above embodiments of the present application.

[0289] Embodiment 1 (WUS configuration can be fixed or variable)

[0290] The scheme of this embodiment 1 can be as follows:

[0291] Step 1: UE acquires UL WUS config from Cell A, which is used by UE to request SIB1 of NES Cell using resource.

[0292] The Cell A can be a cell that periodically transmits system information containing at least its own SIB1. Optionally, the Cell A here can be the first cell in the above embodiments.

[0293] The NES Cell can be a cell that transmits SIB1 in response to UL WUS from UE. Optionally, the NES Cell here can be a cell corresponding to a base station of a specified type in the above embodiments.

[0294] Optionally, the UL WUS config is for one or more NES Cells.

[0295] Correspondingly, once the UE acquires the UL WUS config, the UE can store the UL WUS config.

[0296] Step 2, the UE requests SIB1 of the NES Cell based on the acquired UL WUS config.

[0297] Correspondingly, if the UE deletes the UL WUS config, or the UL WUS config is invalid, the UE cannot request SIB1 of the NES Cell, or the request for SIB1 of the NES Cell fails.

[0298] Optionally, the UL WUS config includes one of the following two cases:

[0299] 1) The UL WUS config is fixed, that is, the UL WUS config acquired by the UE does not change (until the network deconfigures the UL WUS config or part of the UL WUS config), or is always valid.

[0300] Correspondingly, once the UE acquires the UL WUS config, the UE considers that the configuration is always valid, or the configuration is valid until deconfigured (for example, invalid after 3h of acquiring the configuration, or invalid in the case of leaving the PLMN corresponding to the configuration, or invalid in the case that the network updates SIB-X without including the UL WUS config (SIB-X is used to carry the UL WUS config), and the like).

[0301] 2) The UL WUS config is variable, that is, the UL WUS config acquired by the UE or part of the UL WUS config can be changed.

[0302] Correspondingly, the UL WUS config acquired by the UE has a corresponding validity period, or is not necessarily always valid.

[0303] Through the scheme shown in the above embodiments of the present application, it is clear whether the UL WUS config is variable.

[0304] Embodiment 2 (specific behavior in the case of variable WUS config)

[0305] For example, in the following cases, the UE can return to Cell A to update the UL WUS config:

[0306] Failure of SIB1 acquisition;

[0307] Leaving nes-cell, i.e., auto delete the configuration

[0308] Short message by nes-cell.

[0309] The scheme of this embodiment 2 can be as follows:

[0310] Step 1, UE acquires UL WUS config from Cell A. Optionally, including at least one of the following:

[0311] UL WUS config is used by UE to request SIB1 of NES Cell using resources;

[0312] UL WUS config is variable, or part of the content in UL WUS config is variable;

[0313] UL WUS config is for one or more NES Cells.

[0314] Optionally, UE stores the acquired UL WUS config.

[0315] Step 2, UE requests NES Cell SIB1 based on the WUS config acquired from Cell A, and camps / reselects to NES Cell, and / or, acquires SIB1 from NES Cell. That is, at this time, the state of UE can be the state of camping in NES cell.

[0316] In this embodiment, according to whether NES Cell sends updated UL WUS config, it is divided into the following cases:

[0317] Case 1: NES Cell does not send updated UL WUS config.

[0318] For example, in the scenario that the NES Cell where UE currently camps does not send SIB1, or, the Cell that UE wants to reselect is a cell that does not send SIB1, or, the NES Cell that UE wants to reselect does not send SIB1, UE and network can have the following behaviors:

[0319] 1) UE requests NES Cell to send SIB1 based on stored UL WUS config. If the request fails, or, NES Cell does not send SIB1 (or does not send SIB1 within a certain time), UE performs cell reselection procedure, reselects to other cell, and / or, UE considers the stored UL WUS config invalid (or the stored UL WUS config corresponding to this NES Cell invalid), and / or, deletes the stored UL WUS config (or the stored UL WUS config corresponding to this NES Cell), and / or, acquires UL WUS config from Cell A (i.e., updated UL WUS config) in case of reselecting to Cell A (i.e., UE stores the updated UL WUS config).

[0320] 2) UE automatically deletes the stored UL WUS config (or the stored UL WUS config corresponding to this NES Cell) in case of leaving the currently camped NES Cell, or, UE reselects to other cell from the currently camped NES Cell, or, considers the stored UL WUS config invalid (or the stored UL WUS config corresponding to this NES Cell invalid).

[0321] 3) NES Cell can notify UE of UL WUS config update by short message. Accordingly, UE acquires the short message, and knows the UL WUS config update, or the UL WUS config update of specific cell (cell list) according to the information of the short message. Optionally, UE considers the stored related UL WUS config invalid. Further, UE acquires the latest UL WUS config after reselecting to Cell A, and then requests NES Cell to send SIB1 based on the latest UL WUS config.

[0322] Case 2: NES Cell sends updated UL WUS config.

[0323] For example, in case of the following scenarios, UE and network can have the following behaviors:

[0324] 1) NES Cell indicates UL WUS config update by paging message or short message;

[0325] 2) NES Cell indicates UL WUS config update by MIB or other SIB or SIB1;

[0326] 3) NES Cell indicates UL WUS config update in next SIB1 location, next system information modification period;

[0327] 4) NES Cell indicates UL WUS config of this cell (or the resource used by UE to request the NES Cell to send SIB1); further, NES Cell can also indicate updated UL WUS config for other NES Cells;

[0328] 5) If UE gets the latest UL WUS config of this cell from NES Cell, UE requests the NES Cell to send SIB1 based on the latest UL WUS config (when the NES Cell does not send SIB1);

[0329] 6) If UE can get the latest UL WUS config of other NES Cells from the camped NES Cell, UE can use the latest UL WUS config of the reselected NES Cell to request SIB1 of the reselected NES Cell, when UE reselects to other NES Cell, or the reselected NES Cell does not send SIB1.

[0330] Embodiment 3 (UE determines whether WUS config is valid based on network identification information)

[0331] For example, network indicates UL WUS config or SIB-X (SIB-X contains UL WUS config) based on Value Tag.

[0332] Optionally, embodiment 3 can be used alone or in combination with embodiment 2.

[0333] The scheme of this embodiment 3 can be as follows:

[0334] Step 1, UE gets UL WUS config from Cell A. Optionally, including at least one of the following:

[0335] The UL WUS config is used by the UE to request the SIB1 of the NES Cell.

[0336] The UL WUS config is variable, or part of the UL WUS config is variable.

[0337] The UL WUS config is for one or more NES Cells.

[0338] Optionally, the UE stores the obtained UL WUS config.

[0339] Step 2: The UE requests the SIB1 of the NES Cell based on the UL WUS config obtained from the Cell A.

[0340] The UE can camp on the Cell A until data transmission starts, or data transmission is needed, or data arrives; optionally, the Cell A carries a Value Tag for the UL WUS config or SIB-X.

[0341] The Cell A carries a Value Tag for the UL WUS config or SIB-X, which means that the Cell A can send (broadcast or unicast) the Value Tag for the UL WUS config or SIB-X.

[0342] The UE can also camp on / reselect to the NES Cell, and / or obtain the SIB1 from the NES Cell. Optionally, the NES Cell carries a Value Tag for the UL WUS config or SIB-X. The NES Cell carries a Value Tag for the UL WUS config or SIB-X, which means that the NES Cell can send (broadcast or unicast) the Value Tag for the UL WUS config or SIB-X.

[0343] In the embodiments of the present application, the network can indicate the UL WUS config or SIB-X (SIB-X containing the UL WUS config) based on the Value Tag, or the network can indicate the way of UL WUS config change based on the Value Tag, which can include at least one of the following:

[0344] 1) The Cell A carries a Value Tag for the UL WUS config or SIB-X.

[0345] Optionally, the Value Tag is change indication information for the Cell list, or for a specific Cell, or for the UL WUS config as a whole.

[0346] Optionally, the change indication information (Value Tag) is carried in the system information of Cell A, such as SIB1 or SIB-X.

[0347] Optionally, if the UE reselects or moves to Cell A, and / or the network indicates the change indication information, and / or the stored Value Tag of the UE is different from the currently indicated Value Tag of the network, the UE considers that the stored UL WUS config is invalid, and / or the UE deletes the currently stored UL WUS config, and / or the UE reads SIB-X to obtain (further, can also store) the latest UL WUS config, and / or the UE requests SIB1 of the NES Cell based on the latest UL WUS config.

[0348] 2) The NES Cell carries the Value Tag for the UL WUS config or SIB-X.

[0349] Optionally, the value-tag is change indication information for the current NES Cell, or for the Cell list, or for the UL WUS config as a whole (i.e. all cells included in the UL WUS config indicated by Cell A).

[0350] Optionally, the change indication information is carried in the system information of the NES Cell, such as MIB.

[0351] Optionally, if the UE reselects or moves to the NES Cell, and / or the NES Cell indicates the change indication information, and / or the stored Value Tag of the UE is different from the currently indicated Value Tag of the network, the UE considers that the stored UL WUS config is invalid, and / or the UE deletes the currently stored UL WUS config, and / or performs cell reselection, and / or obtains (further, can also store) the latest UL WUS config in the case of reselecting to Cell A, and / or the UE requests SIB1 of the NES Cell based on the latest UL WUS config.

[0352] Embodiment 4 (NES Cell SIB1 content update, or, UE reselects to acquire NES Cell SIB1)

[0353] For example, the network can rely on short message to notify the SIB1 content change as in legacy.

[0354] The solution of this embodiment 4 can be as follows.

[0355] Step 1, UE camps on a NES Cell (e.g. Cell 1);

[0356] Step 2, the network indicates UE that the SIB1 content of the NES Cell is changed, and UE acquires the updated SIB1.

[0357] Optionally, the network notifies UE that the SIB1 content of the NES Cell is changed through paging message, or, short message.

[0358] Optionally, UE knows the SIB1 change according to the network indication information. Accordingly, UE acquires the updated SIB1 at the next SIB1 location, or, the next system information modification period.

[0359] Wherein, if UE performs cell reselection, the following cases can occur.

[0360] Case 1) UE reselects to a cell other than Cell 1:

[0361] If the cell reselected by UE is Cell A, or a non-NES Cell, or a NES Cell without sending SIB1, UE considers that the previously stored SIB1 of the cell (i.e. the cell reselected above) is invalid, and / or UE reads (re-reads) the SIB1 of the cell.

[0362] If the cell is another NES Cell, UE considers that the previously stored SIB1 of the cell is invalid, and / or UE requests the SIB1 of the cell based on the stored WUS config, and / or UE reads (re-reads) the SIB1 of the cell.

[0363] Case 2) UE reselects to the NES Cell (Cell 1) again:

[0364] The UE considers the previously stored SIB1 of the cell (i.e., Cell1) invalid, and / or the UE requests the SIB1 of the cell based on the stored WUS config, and / or the UE (re)reads the SIB1 of the cell.

[0365] Referring to FIG. 7, a block diagram of a wireless communication device is shown, according to an embodiment of the present disclosure. The wireless communication device has functions implemented by a terminal device in the method shown in FIG. 2, FIG. 5 or FIG. 6. As shown in FIG. 7, the device can include:

[0366] The receiving module 701 is configured to receive configuration information sent by a first cell, the configuration information being used for a terminal device to request first system information from the cell or a base station.

[0367] In some embodiments, the configuration information is unchangeable or fixed, or all or part of the configuration information is changeable.

[0368] In some embodiments, the cell or the base station is a cell or a base station of a specified type.

[0369] In some embodiments, the wireless communication device further includes a requesting module configured to request the cell or the base station to send the first system information according to the configuration information.

[0370] In some embodiments, the configuration information is RACH configuration information or uplink wake-up signal (UL WUS) configuration information.

[0371] In some embodiments, the requesting module is configured to, in a case where the configuration information is UL WUS configuration information, send an UL WUS to the cell or the base station according to a resource indicated by the configuration information, the UL WUS being used to request the cell or the base station to send the first system information; or the requesting module is configured to, in a case where the configuration information is RACH configuration information, send a RACH message, a random access opportunity (RO) or a preamble sequence to the cell or the base station according to a RACH resource, the RACH message, the RO or the preamble sequence being used to request the cell or the base station to send the first system information.

[0372] In some embodiments, in a case where the configuration information is unchangeable or fixed, the configuration information is valid continuously.

[0373] In some embodiments, in a case where the configuration information is unchangeable or fixed, the wireless communication device further includes an invalidation module configured to invalidate the configuration information in a case where the configuration information is deconfigured, the deconfiguration including one or more of the following:

[0374] The available duration of the configuration information reaches a duration threshold, the duration threshold is configured by the network or predefined; the terminal device is currently located outside a network range corresponding to the configuration information, or the terminal device leaves the network range corresponding to the configuration information; the new system information sent by the network does not contain the configuration information; the new system information sent by the network contains information indicating that the configuration is invalid; the terminal device receives an indication that the configuration information sent by the network is invalid or changed.

[0375] In some embodiments, when all or part of the information in the configuration information is variable, the wireless communication device further includes an execution module configured to cause the terminal device to perform a first action, the first action including one or more of determining that the stored configuration information is invalid, updating the configuration information, deleting the stored configuration information, obtaining new configuration information, and performing a cell reselection procedure to reselect to another cell.

[0376] In some embodiments, the terminal device performs the first action when at least one of the following conditions is met: the terminal device does not request first system information of a second cell according to the configuration information; the terminal device leaves the currently camped second cell; the terminal device reselects to another cell from the currently camped second cell; the terminal device receives a configuration update notification sent by the second cell; the terminal device receives a change notification of system information carrying the configuration information sent by the second cell; the terminal device receives a configuration update notification sent by the first cell; the terminal device receives a change notification of system information carrying the configuration information sent by the first cell; the terminal device reselects or moves to the first cell after leaving the first cell; the terminal device reselects or moves to the second cell after leaving the first cell; and the terminal device reselects or moves to the second cell, wherein the second cell is a cell of a specified type, or the second cell is a cell corresponding to a base station of a specified type.

[0377] In some embodiments, the execution module is configured to obtain new configuration information from the first cell when the terminal device reselects to the first cell.

[0378] In some embodiments, when the configuration update condition includes that the terminal device receives a configuration update notification sent by the second cell, or the terminal device receives a change notification of system information carrying the configuration information sent by the second cell, or the terminal device reselects or moves to the second cell after leaving the first cell, or the terminal device reselects or moves to the second cell, the execution module is configured to receive new configuration information sent by the second cell.

[0379] In some embodiments, the execution module is configured to receive new configuration information sent by the second cell through system information, a paging message, or a short message.

[0380] In some embodiments, the execution module is configured to receive, at the next first system information location, new configuration information transmitted by the second cell; or,

[0381] The execution module is configured to receive, at the next system information modification period, new configuration information transmitted by the second cell.

[0382] In some embodiments, the new configuration information comprises information corresponding to the second cell; or, the new configuration information comprises information corresponding to the second cell and information corresponding to other cells other than the second cell.

[0383] In some embodiments, the wireless communication apparatus further comprises a re-request module configured to, in the case that the first system information of the second cell is not acquired, request the second cell to transmit the first system information according to the new configuration information.

[0384] In some embodiments, the configuration update notification is carried by one or more of the following messages: a paging message, a short message.

[0385] In some embodiments, the terminal device considers that the configuration information is updated in the case that at least one of the following conditions is met: the first information carried by the network is different from the first information stored by the terminal device; the first information carried by the network is received or read.

[0386] In some embodiments, in the case that the terminal device considers that the configuration information is updated, the terminal device performs a second behavior, the second behavior comprising one or more of the following: determining that the stored configuration information is invalid; updating the configuration information; deleting the stored configuration information; acquiring new configuration information.

[0387] Performing a cell reselection procedure to reselect to another cell.

[0388] In some embodiments, the first information is set for the configuration information or system information carrying the configuration information.

[0389] In some embodiments, the first information is carried by the system information.

[0390] In some embodiments, the first information is for a single specified type of cell; or, the first information is for multiple specified types of cells.

[0391] In some embodiments, the first information is a value tag and / or a domain tag.

[0392] In some embodiments, the wireless communication apparatus further comprises a change notification receiving module configured to receive a system message change notification transmitted by a third cell, the system message change notification being used to indicate that the first system information of the third cell is changed; the third cell is a cell of a specified type, or the third cell is a cell corresponding to a base station of a specified type.

[0393] In some embodiments, the system message change notification is carried by one or more of the following messages: a paging message, a short message.

[0394] In some embodiments, the terminal device considers that the first system information of the third cell is updated in case at least one of the following conditions is met: the second information carried by the network is different from the second information stored by the terminal device; the second information carried by the network is received or read; wherein the third cell is a cell of a specified type, or the third cell is a cell corresponding to a base station of a specified type.

[0395] In some embodiments, in case the terminal device considers that the first system information is updated, the terminal device performs a third behavior, the third behavior including one or more of the following: determining that the stored first system information is invalid; updating the first system information; deleting the stored first system information; obtaining new first system information.

[0396] In some embodiments, the second information is for the first system information.

[0397] In some embodiments, the second information is carried by the system information.

[0398] In some embodiments, the second information is for a single specified type of cell; or the second information is for multiple specified types of cells.

[0399] In some embodiments, the second information is a value tag and / or a domain tag.

[0400] In some embodiments, the wireless communication device further includes an obtaining module for re-obtaining the first system message of the third cell.

[0401] In some embodiments, the obtaining module is configured to receive the first system message of the third cell sent by the third cell at a next first system information location; or the obtaining module is configured to receive the first system message of the third cell sent by the third cell at a next system information modification period.

[0402] In some embodiments, the wireless communication device further includes a fourth behavior performing module configured to perform a fourth behavior in case the terminal device leaves the third cell, or the terminal device reselects from the third cell to a fourth cell, the fourth behavior including one or more of the following: determining that the previously stored first system message of the third cell is invalid; deleting the previously stored first system message of the third cell.

[0403] In some embodiments, the wireless communication apparatus further includes a fifth behavior performing module configured to perform a fifth behavior when the terminal device returns to the third cell again, or the terminal device reselects to the third cell again, or the terminal device reselects from the third cell to the fourth cell and then reselects to the third cell, the fifth behavior including one or more of the following: determining that the previously stored first system message of the third cell is invalid; deleting the previously stored first system message of the third cell; reacquiring the first system message of the third cell; and requesting the first system information of the third cell based on the configuration information of the third cell.

[0404] In some embodiments, the specified type of cell is an energy saving cell, a cell that sends the first system information based on a request, a cell corresponding to the configuration information, or an NES cell; and / or, the specified type of base station is an energy saving base station, a base station that sends the first system information based on a request, a base station corresponding to the configuration information, or an NES base station.

[0405] In some embodiments, the first system information is SIB1.

[0406] Referring to FIG. 8, a block diagram of a wireless communication apparatus is shown, according to an embodiment of the present application. The wireless communication apparatus implements the functions performed by the network device in the methods shown in FIG. 3, FIG. 5, or FIG. 6. As shown in FIG. 8, the apparatus can include:

[0407] The sending module 801 is configured to send the configuration information to the terminal device, the configuration information being used by the terminal device to request the first system information from the cell or the base station.

[0408] In some embodiments, the configuration information is unchangeable or fixed, or all or part of the information in the configuration information is changeable.

[0409] In some embodiments, the cell or the base station is a cell or a base station of a specified type.

[0410] In some embodiments, the configuration information is RACH configuration information, or uplink wake-up signal (UL WUS) configuration information.

[0411] In some embodiments, in the case where the configuration information is unchangeable or fixed, the configuration information is valid continuously.

[0412] In some embodiments, in the case where the configuration information is unchangeable or fixed, the configuration information is invalid in one or more of the following cases: a time length of the configuration information reaches a time length threshold, the time length threshold being configured by the network or predefined; a current location of the terminal device is not within a network range corresponding to the configuration information, or the terminal device leaves the network range corresponding to the configuration information; new system information sent by the network does not include the configuration information; and an indication received by the terminal device that configuration information sent by the network is invalid or changed.

[0413] In some embodiments, the wireless communication apparatus further includes an execution module configured to perform one or more of the following actions: sending, to the terminal device, system information containing information indicating configuration invalidation; sending, to the terminal device, an indication of configuration information invalidation or change; sending, to the terminal device, a change notification of system information carrying the configuration information; sending, to the terminal device, first information; the first information is for the configuration information or is set by the system information carrying the configuration information; sending, to the terminal device, a system message change notification indicating that a first system message of a cell corresponding to the network device has changed; and sending, to the terminal device, second information; the second information is for the first system message.

[0414] Referring to FIG. 9, a block diagram of a wireless communication apparatus is shown, according to an embodiment of the present application. The wireless communication apparatus has functions implemented by the network device in the methods shown in FIG. 4, FIG. 5 or FIG. 6. As shown in FIG. 9, the apparatus can include:

[0415] The sending module 901 is configured to send, to the terminal device, first system information in a case where the terminal device sends a system information request; wherein the system information request is sent by the terminal device according to configuration information sent by the first cell; and the configuration information is used by the terminal device to request the first system information from the cell or the base station.

[0416] In some embodiments, the wireless communication apparatus further includes an execution module configured to perform one or more of the following actions: sending, to the terminal device, system information containing information indicating configuration invalidation; sending, to the terminal device, an indication of configuration information invalidation or change; sending, to the terminal device, a change notification of system information carrying the configuration information; sending, to the terminal device, first information; the first information is for the configuration information or is set by the system information carrying the configuration information; sending, to the terminal device, a system message change notification indicating that a first system message of a cell corresponding to the network device has changed; and sending, to the terminal device, second information; the second information is for the first system message.

[0417] It should be noted that the apparatus provided by the above embodiments, when implementing its functions, is only exemplified by the above division of functional modules, and in actual applications, the above functions can be completed by different functional modules according to actual needs, i.e., the content structure of the device is divided into different functional modules to complete all or part of the above-described functions.

[0418] As to the apparatus in the above embodiments, the specific manners in which each module performs operations have been described in detail in the embodiments of the methods, and will not be described in detail here.

[0419] Please refer to FIG. 10, which shows a structural schematic diagram of a communication device 1000 according to an embodiment of the present application. The communication device 1000 can include a processor 1001, a receiver 1002, a transmitter 1003, a memory 1004 and a bus 1005.

[0420] The processor 1001 includes one or more processing cores. The processor 1001 performs various functional applications and information processing by running software programs and modules.

[0421] The receiver 1002 and the transmitter 1003 can be implemented as a communication component, which can be a communication chip. The communication chip can also be referred to as a transceiver. The memory 1004 is connected to the processor 1001 through the bus 1005. The memory 1004 can be used to store computer programs, and the processor 1001 is used to execute the computer programs to implement various steps in the above method embodiments.

[0422] In addition, the memory 1004 can be implemented by any type of volatile or non-volatile storage devices or a combination thereof, including but not limited to: magnetic or optical disks, electrically erasable programmable read-only memories, erasable programmable read-only memories, static random access memories, read-only memories, magnetic memories, flash memories, programmable read-only memories.

[0423] In an exemplary scheme, when the communication device 1000 is implemented as the terminal device, the receiver 1002 and the processor 1001 execute the computer programs to enable the communication device to implement various steps performed by the terminal device in any one of the methods shown in FIG. 2, FIG. 3, FIG. 4, FIG. 5 or FIG. 6. At this time, the receiver 1002 can correspondingly implement the methods and steps implemented by the receiving module 701 in FIG. 7.

[0424] In an exemplary scheme, when the communication device 1000 is implemented as the network device, the transmitter 1003 and the processor 1001 execute the computer programs to enable the communication device to implement various steps performed by the network device in any one of the methods shown in FIG. 2, FIG. 3, FIG. 4, FIG. 5 or FIG. 6. At this time, the transmitter 1003 can correspondingly implement the methods and steps implemented by the sending module 801 in FIG. 8.

[0425] The embodiments of the present application also provide a computer readable storage medium, which stores a computer program. The computer program is loaded and executed by a processor to implement all or part of the steps performed by the terminal device or the network device in the methods shown in FIG. 2, FIG. 3, FIG. 4, FIG. 5 or FIG. 6.

[0426] The application further provides a chip for running in a communication device to enable the communication device to perform all or part of the steps performed by the terminal device or the network device in the method shown in FIG. 2, FIG. 3, FIG. 4, FIG. 5 or FIG. 6.

[0427] The application further provides a computer program product or a computer program including computer instructions stored in a computer readable storage medium. A processor of a communication device reads the computer instructions from the computer readable storage medium, and the processor executes the computer instructions to enable the communication device to perform all or part of the steps performed by the terminal device or the network device in the method shown in FIG. 2, FIG. 3, FIG. 4, FIG. 5 or FIG. 6.

[0428] The application further provides a computer program executed by a processor of a communication device to enable the communication device to perform all or part of the steps performed by the terminal device or the network device in the method shown in FIG. 2, FIG. 3, FIG. 4, FIG. 5 or FIG. 6.

[0429] Those skilled in the art should be aware that the functions described in the above one or more examples can be implemented in hardware, software, firmware or any combination thereof. When implemented in software, the functions can be stored in a computer readable medium or transmitted as one or more instructions or codes on a computer readable medium. The computer readable medium includes computer storage medium and communication medium, and the communication medium includes any medium that facilitates the transfer of computer programs from one place to another. The storage medium can be any available medium accessible by a general or special purpose computer.

[0430] The above is only an exemplary embodiment of the application, and is not intended to limit the application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A method of wireless communication, the method comprising: The method is performed by a terminal device, and the method comprises: receiving configuration information sent by a first cell, the configuration information being used for the terminal device to request first system information from a cell or a base station.

2. The method of claim 1, wherein, The configuration information is invariable or fixed, or all or part of the information in the configuration information is variable.

3. The method according to claim 1 or 2, characterized in that, The cell or base station is a cell or base station of a specified type.

4. The method according to any one of claims 1 to 3, characterized in that, The method comprises: requesting the cell or base station to send the first system information according to the configuration information.

5. The method of claim 4, wherein, The configuration information is RACH configuration information or uplink wake-up signal (UL WUS) configuration information.

6. The method of claim 5, wherein, The requesting the cell or base station to send the first system information according to the configuration information comprises: in a case where the configuration information is UL WUS configuration information, sending an UL WUS to the cell or base station according to a resource indicated by the UL WUS configuration information, the UL WUS being used for requesting the cell or base station to send the first system information; or in a case where the configuration information is RACH configuration information, sending a RACH message, a random access opportunity (RO) or a preamble sequence to the cell or base station according to a resource indicated by the RACH configuration information, the RACH message, RO or preamble sequence being used for requesting the cell or base station to send the first system information.

7. The method according to any one of claims 1 to 6, characterized in that, In a case where the configuration information is invariable or fixed, the configuration information is valid continuously.

8. The method according to any one of claims 1 to 6, characterized in that, In a case where the configuration information is invariable or fixed, the method comprises: in a case where the configuration information is deconfigured, the configuration information is invalid; The deconfiguration comprises one or more of the following: a usable duration of the configuration information reaches a duration threshold, the duration threshold being configured by a network or predefined; a current location of the terminal device is not within a network range corresponding to the configuration information, or the terminal device leaves the network range corresponding to the configuration information; new system information sent by a network does not contain the configuration information; the new system information sent by the network contains information indicating configuration invalidation; the terminal device receives an indication of invalidation or change of the configuration information sent by the network.

9. The method according to any one of claims 1 to 6, characterized in that, In a case where all or part of the information in the configuration information is variable, the method comprises: The terminal device performs a first behavior, the first behavior comprising one or more of the following: determining that the stored configuration information is invalid, updating the configuration information, deleting the stored configuration information, obtaining new configuration information, or performing a cell reselection procedure to reselect to another cell.

10. The method of claim 9, wherein, The terminal device performs the first behavior in a case where at least one of the following conditions is met: the terminal device does not request first system information of a second cell according to the configuration information; the terminal device leaves a currently camped second cell; the terminal device reselects from the currently camped second cell to another cell; the terminal device receives a configuration update notification sent by the second cell; the terminal device receives a change notification of system information carrying the configuration information sent by the second cell; the terminal device receives a configuration update notification sent by the first cell; The terminal device receives a change notification of system information carrying the configuration information sent by the first cell; After the terminal device leaves the first cell, the terminal device reselects or moves to the first cell; After the terminal device leaves the first cell, the terminal device reselects or moves to a second cell; The terminal device reselects or moves to a second cell; The second cell is a cell of a specified type, or the second cell is a cell corresponding to a base station of a specified type.

11. The method according to claim 9 or 10, characterized in that, The obtaining of the new configuration information comprises: In a case where the terminal device reselects to the first cell, the terminal device obtains the new configuration information from the first cell.

12. The method of claim 9 or 10, wherein, In a case where the configuration update condition comprises that the terminal device receives a configuration update notification sent by a second cell, or the terminal device receives a change notification of system information carrying the configuration information sent by the second cell, or after the terminal device leaves the first cell, the terminal device reselects or moves to the second cell, or the terminal device reselects or moves to the second cell, the obtaining of the new configuration information comprises: Receiving the new configuration information sent by the second cell.

13. The method of claim 12, wherein, The receiving of the new configuration information sent by the second cell comprises: Receiving the new configuration information sent by the second cell through system information, a paging message or a short message.

14. The method according to claim 12 or 13, characterized in that, The receiving of the new configuration information sent by the second cell comprises: Receiving the new configuration information sent by the second cell at a next first system information location; or Receiving the new configuration information sent by the second cell at a next system information modification period.

15. The method of any of claims 9 to 14, wherein: The new configuration information comprises information corresponding to the second cell; or The new configuration information comprises information corresponding to the second cell and information corresponding to a cell other than the second cell.

16. The method according to any one of claims 12 to 15, characterized in that, The method further comprises: In a case where the first system information of the second cell is not obtained, requesting the second cell to send the first system information according to the new configuration information.

17. The method of any one of claims 10, 12-16, wherein, The configuration update notification is carried by one or more of the following messages: a paging message, a short message.

18. The method of claim 9, wherein, In a case where at least one of the following conditions is met, the terminal device considers that the configuration information is updated: First information carried by a network is different from first information stored by the terminal device; The first information carried by the network is received or read.

19. The method of claim 18, wherein, In a case where the terminal device considers that the configuration information is updated, the terminal device performs a second behavior, and the second behavior comprises one or more of the following: Determining that the stored configuration information is invalid; Updating the configuration information; Deleting the stored configuration information; Obtaining new configuration information; Performing a cell reselection procedure to reselect to another cell.

20. The method of claim 19, wherein, The first information is set for the configuration information or system information carrying the configuration information.

21. The method according to claim 19 or 20, characterized in that, The first information is carried by system information.

22. The method of any of claims 19 to 21, wherein: The first information is for a single cell of the specified type; or The first information is for multiple cells of the specified type.

23. The method of any one of claims 19 to 22, wherein, The first information is a value tag and / or a domain tag.

24. The method of any one of claims 1 to 23, wherein, The method comprises: receiving a system message change notification sent by the third cell, the system message change notification being used to indicate that the first system message of the third cell is changed; The third cell is a cell of a specified type, or the third cell is a cell corresponding to a base station of a specified type.

25. The method of claim 24, wherein, The system message change notification is carried by one or more of the following messages: a paging message, a short message.

26. The method of any one of claims 1 to 25, wherein, In at least one of the following conditions, the terminal device considers that the first system information of the third cell is updated: The second information carried by the network is different from the second information stored by the terminal device; The second information carried by the network is received or read; The third cell is a cell of a specified type, or the third cell is a cell corresponding to a base station of a specified type.

27. The method of claim 26, wherein, In the case where the terminal device considers that the first system information is updated, the terminal device performs a third behavior, the third behavior comprising one or more of the following: Determine that the stored first system information is invalid; Update the first system information; Delete the stored first system information; Obtain new first system information.

28. The method of claim 26 or 27, wherein, The second information is for the first system information.

29. The method of any one of claims 26 to 28, wherein, The second information is carried by system information.

30. The method of any of claims 26-29, wherein: The second information is for a single cell of the specified type; or The second information is for multiple cells of the specified type.

31. The method of any one of claims 26 to 30, wherein, The second information is a value tag and / or a domain tag.

32. The method of any one of claims 24 to 31, wherein, The method further comprises reacquiring the first system message of the third cell.

33. The method of claim 32, wherein, The reacquiring the first system message of the third cell comprises: receiving the first system message of the third cell sent by the third cell at a next first system information location; or receiving the first system message of the third cell sent by the third cell at a next system information modification period.

34. The method of any one of claims 1 to 33, wherein, The method further comprises: In the case where the terminal device leaves the third cell, or the terminal device reselects to a fourth cell from the third cell, performing a fourth behavior, the fourth behavior comprising one or more of the following: Determine that the previously stored first system message of the third cell is invalid; Delete the previously stored first system message of the third cell.

35. The method of any one of claims 1 to 33, wherein, The method further comprises: In the case where the terminal device returns to the third cell again, or the terminal device reselects to the third cell again, or the terminal device reselects to the third cell from the fourth cell again, performing a fifth behavior, the fifth behavior comprising one or more of the following: Determine that the previously stored first system message of the third cell is invalid; Delete the previously stored first system message of the third cell; Reacquire the first system message of the third cell; Request the first system information of the third cell based on the configuration information of the third cell.

36. The method of any of claims 1-35, wherein: The specified type of cell is an energy saving cell, a cell that sends the first system information based on a request, a cell corresponding to the configuration information, or an NES cell; and / or, The specified type of base station is an energy saving base station, a base station that sends the first system information based on a request, a base station corresponding to the configuration information, or an NES base station.

37. The method of any one of claims 1 to 36, wherein, The first system information is SIB1.

38. A method of wireless communication, the method comprising: The method is performed by a network device, and the method comprises: sending configuration information to a terminal device, the configuration information being used by the terminal device to request first system information from a cell or a base station.

39. The method of claim 38, wherein, The configuration information is unchangeable or fixed, or all or part of the information in the configuration information is changeable.

40. The method of claim 38 or 39, wherein, The cell or base station is a cell or base station of a specified type.

41. The method of any one of claims 38 to 40, wherein, The configuration information is RACH configuration information or uplink wake-up signal (UL WUS) configuration information.

42. The method of any one of claims 38 to 41, wherein, The method further comprises: performing one or more of the following actions: sending system information containing information indicating configuration invalidation to the terminal device; sending an indication of configuration information invalidation or change to the terminal device; sending a change notification of system information carrying the configuration information to the terminal device; sending first information to the terminal device; the first information is for the configuration information or is set by system information carrying the configuration information; sending a system message change notification to the terminal device, the system message change notification being used to indicate that the first system message of a cell corresponding to the network device has changed; sending second information to the terminal device; the second information is for the first system information.

43. A method of wireless communication, the method comprising: The method is performed by a network device, and the method comprises: in a case where a system information request sent by a terminal device is received, sending first system information to the terminal device; wherein the system information request is sent by the terminal device according to configuration information sent by a first cell; the configuration information is used by the terminal device to request first system information from a cell or a base station. The method further comprises:

44. The method of claim 43, wherein, performing one or more of the following actions: sending system information containing information indicating configuration invalidation to the terminal device; sending an indication of configuration information invalidation or change to the terminal device; sending a change notification of system information carrying the configuration information to the terminal device; sending first information to the terminal device; the first information is for the configuration information or is set by system information carrying the configuration information; sending a system message change notification to the terminal device, the system message change notification being used to indicate that the first system message of a cell corresponding to the network device has changed; sending second information to the terminal device; the second information is for the first system information. The apparatus comprises:

45. A wireless communication apparatus, characterized by: a receiving module configured to receive configuration information sent by a first cell, the configuration information being used by the terminal device to request first system information from a cell or a base station. The apparatus comprises:

46. A wireless communication device, comprising: a sending module configured to send configuration information to a terminal device, the configuration information being used by the terminal device to request first system information from a cell or a base station. The apparatus comprises:

47. A wireless communication apparatus, characterized by: ​ The sending module is configured to, in a case where a system information request sent by the terminal device is received, send first system information to the terminal device. The system information request is sent by the terminal device according to configuration information sent by a first cell; and the configuration information is used for the terminal device to request first system information from a cell or a base station.

48. A terminal device, comprising: The terminal device comprises a processor, a memory and a transceiver. The memory stores a computer program, and the processor executes the computer program, so that the terminal device implements the wireless communication method according to any one of claims 1 to 37.

49. A network device, comprising: The network device comprises a processor, a memory and a transceiver. The memory stores a computer program, and the processor executes the computer program, so that the network device implements the wireless communication method according to any one of claims 38 to 44.

50. A computer-readable storage medium, comprising: The storage medium stores a computer program, and the computer program is used for being executed by a processor of a communication device, so that the communication device implements the wireless communication method according to any one of claims 1 to 44.

51. A chip, comprising: The chip comprises programmable logic circuit and / or program instruction, and the chip is used for running in a communication device, so that the communication device executes the wireless communication method according to any one of claims 1 to 44.

52. A computer program product, characterised in that, The computer program product comprises computer instructions stored in a computer readable storage medium; a processor of a communication device reads the computer instructions from the computer readable storage medium and executes the computer instructions, so that the communication device executes the wireless communication method according to any one of claims 1 to 44.

53. A computer program, characterized in that, The computer program is executed by a processor of a communication device, so that the communication device implements the wireless communication method according to any one of claims 1 to 44.

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