Method and apparatus for wireless communication

Abstract

A method and apparatus for wireless communication are provided. The method comprises the following steps: the terminal equipment determines configuration information of a first resource; the terminal device sends a first request on the first resource; wherein the configuration information of the first resource is carried in a main information block, and the first request is used for requesting a first SIB.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and more specifically, to a method and device for wireless communication. Background Art

[0002] In order to serve terminal devices, network devices usually send system information blocks (SIBs) periodically. However, in scenarios where there is no demand from terminal devices or no terminal devices are resident in the cell, periodic transmission of SIBs by network devices will result in a large waste of energy. In order to achieve energy saving, how to perform on-demand transmission of SIBs and related resource configuration has become a technical problem that needs to be solved urgently. Summary of the invention

[0003] The present application provides a method and apparatus for wireless communication. Various aspects involved in the embodiments of the present application are introduced below.

[0004] In a first aspect, a method for wireless communication is provided, comprising: a terminal device determines configuration information of a first resource; the terminal device sends a first request on the first resource; wherein the configuration information of the first resource is carried in a main information block, and the first request is used to request a first SIB.

[0005] According to a second aspect, a method for wireless communication is provided, comprising: a network device sends configuration information of a first resource; the network device receives a first request sent by a terminal device on the first resource; wherein the configuration information of the first resource is carried in a main information block, and the first request is used to request a first SIB.

[0006] According to a third aspect, a device for wireless communication is provided, which is a terminal device, and comprises: a determination unit for determining configuration information of a first resource; a sending unit for sending a first request on the first resource; wherein the configuration information of the first resource is carried in a main information block, and the first request is used to request a first SIB.

[0007] In a fourth aspect, a device for wireless communication is provided, which is a network device, and includes: a sending unit, used to send configuration information of a first resource; a receiving unit, used to receive a first request sent by a terminal device on the first resource; wherein the configuration information of the first resource is carried in a main information block, and the first request is used to request a first SIB.

[0008] In a fifth aspect, a communication device is provided, comprising a memory and a processor, wherein the memory is used to store a program, and the processor is used to call the program in the memory to execute the method described in the first aspect or the second aspect.

[0009] In a sixth aspect, a device is provided, comprising a processor, configured to call a program from a memory to execute the method described in the first aspect or the second aspect.

[0010] In a seventh aspect, a chip is provided, comprising a processor for calling a program from a memory so that a device equipped with the chip executes the method described in the first aspect or the second aspect.

[0011] According to an eighth aspect, a computer-readable storage medium is provided, on which a program is stored, wherein the program enables a computer to execute the method as described in the first aspect or the second aspect.

[0012] According to a ninth aspect, a computer program product is provided, comprising a program, wherein the program enables a computer to execute the method described in the first aspect or the second aspect.

[0013] In a tenth aspect, a computer program is provided, wherein the computer program enables a computer to execute the method as described in the first aspect or the second aspect.

[0014] The terminal device in the embodiment of the present application can determine the configuration information of the first resource in the master information block, and then send a first request for requesting the first SIB on the first resource. It can be seen that the terminal device can timely determine the configured time-frequency resources through the master information block, thereby sending a request to trigger the on-demand SIB1. The network device sends the on-demand SIB1 based on the request, thereby achieving network energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a wireless communication system applied in the embodiments of the present application.

[0016] Figure 2 This is a schematic diagram of on-demand SIB1 transmission based on an uplink wake-up signal.

[0017] Figure 3 It is a flowchart of a method for wireless communication provided in an embodiment of the present application.

[0018] Figure 4 This is a possible schematic diagram of the correspondence between the synchronization signal block index and the SIB1 time-frequency resources.

[0019] Figure 5 This is another possible schematic diagram of the correspondence between the synchronization signal block index and the SIB1 time-frequency resources.

[0020] Figure 6 This is another possible schematic diagram of the correspondence between the synchronization signal block index and the SIB1 time-frequency resources.

[0021] Figure 7This is another possible schematic diagram of the correspondence between the synchronization signal block index and the SIB1 time-frequency resources.

[0022] Figure 8 It is a structural diagram of a device for wireless communication provided in an embodiment of the present application.

[0023] Fig. 9 It is a structural diagram of another device for wireless communication provided in an embodiment of the present application.

[0024] Fig.10 It is a structural diagram of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0025] The following will describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. For the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] The embodiments of the present application can be applied to various communication systems. For example, the embodiments of the present application can be applied to global system of mobile communication (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS) system, long term evolution (LTE) system, advanced long term evolution (LTE-A) system, new radio (NR) system, NR system evolution system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system, universal mobile telecommunication system (UMTS), wireless local area network (WLAN) system, wireless fidelity (WiFi) system, fifth generation communication (5G) system. The embodiments of the present application can also be applied to other communication systems, such as the sixth-generation (6G) mobile communication system, or future communication systems such as satellite communication systems.

[0027] Traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, communication systems can not only support traditional cellular communications, but also support one or more other types of communications. For example, a communication system can support one or more of the following communications: device to device (D2D) communication, machine to machine (M2M) communication, machine type communication (MTC), enhanced machine type communication (eMTC), vehicle to vehicle (V2V) communication, and vehicle to everything (V2X) communication, etc. The embodiments of the present application can also be applied to communication systems that support the above communication methods.

[0028] The communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or a standalone (SA) networking scenario.

[0029] The communication system in the embodiment of the present application can be applied to an unlicensed spectrum. The unlicensed spectrum can also be considered as a shared spectrum. Alternatively, the communication system in the embodiment of the present application can also be applied to an authorized spectrum. The authorized spectrum can also be considered as a dedicated spectrum.

[0030] The embodiments of the present application can be applied to a non-terrestrial network (NTN) system. As an example, the NTN system can be a 4G-based NTN system, a NR-based NTN system, an Internet of Things (IoT)-based NTN system, or a narrowband Internet of Things (NB-IoT)-based NTN system.

[0031] The communication system may include one or more terminal devices. The terminal devices mentioned in the embodiments of the present application may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

[0032] In some embodiments, the terminal device may be a station (STATION, ST) in a WLAN. In some embodiments, the terminal device may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) device, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system (such as an NR system), or a terminal device in a future-evolved public land mobile network (PLMN) network, etc.

[0033] In some embodiments, the terminal device may be a device that provides voice and / or data connectivity to a user. For example, the terminal device may be a handheld device, a vehicle-mounted device, etc. with a wireless connection function. As some specific examples, the terminal device may be a mobile phone, a tablet computer, a laptop, a PDA, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc.

[0034] In some embodiments, the terminal device can be deployed on land. For example, the terminal device can be deployed indoors or outdoors. In some embodiments, the terminal device can be deployed on the water, such as on a ship. In some embodiments, the terminal device can be deployed in the air, such as on an airplane, a balloon, and a satellite.

[0035] In addition to the terminal device, the communication system may also include one or more network devices. The network device in the embodiment of the present application may be a device for communicating with the terminal device, and the network device may also be referred to as an access network device or a radio access network device. The network device may be, for example, a base station. The network device in the embodiment of the present application may refer to a radio access network (RAN) node (or device) that accesses the terminal device to a wireless network. Base station can broadly cover various names as follows, or replace with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point (AP), transmission point (TRP), transmission point (TP), master station (MeNB), secondary station (SeNB), multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, transmission node, transceiver node, base band unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. The base station can be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. The base station can also refer to a communication module, a modem or a chip used to be set in the aforementioned device or apparatus. The base station can also be a mobile switching center and a device that performs the base station function in D2D, V2X, and M2M communications, a network-side device in a 6G network, or a device that performs the base station function in a future communication system. The base station can support networks with the same or different access technologies. The embodiments of this application do not limit the specific technology and specific device form used by the network device.

[0036] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move based on the location of the mobile base station. In other examples, a helicopter or drone can be configured to act as a device that communicates with another base station.

[0037] In some deployments, the network device in the embodiments of the present application may refer to a CU or a DU, or the network device includes a CU and a DU. The gNB may also include an AAU.

[0038] As an example but not limitation, in the embodiments of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. In some embodiments of the present application, the network device may be a satellite or a balloon station. In some embodiments of the present application, the network device may also be a base station set up in a location such as land or water.

[0039] In an embodiment of the present application, a network device may provide services for a cell, and a terminal device may communicate with the network device through transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell. The cell may be a cell corresponding to a network device (e.g., a base station). The cell may belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0040] For example, Figure 1 The following is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application. Figure 1 As shown, the communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographic area and may communicate with terminal devices located in the coverage area.

[0041] Figure 1 One network device and two terminal devices are shown exemplarily. In some embodiments of the present application, the communication system 100 may include multiple network devices and each network device may include another number of terminal devices within its coverage area, which is not limited.

[0042] In the embodiments of the present application, Figure 1 The communication system shown may also include other network entities such as a mobility management entity (MME), an access and mobility management function (AMF), etc., which is not limited in the embodiments of the present application.

[0043] It should be understood that the device with communication function in the network / system in the embodiment of the present application can be referred to as a communication device. Figure 1Taking the communication system 100 shown as an example, the communication equipment may include a network device 110 and a terminal device 120 with communication functions. The network device 110 and the terminal device 120 may be the specific devices described above and will not be repeated here. The communication equipment may also include other devices in the communication system 100, such as a network controller, a mobile management entity and other network entities, which is not limited in the embodiments of the present application.

[0044] For ease of understanding, some relevant technical knowledge involved in the embodiments of the present application is first introduced. The following related technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they 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.

[0045] With the development of mobile communication technology, the new generation of wireless evolution systems (for example, 5G systems) use a variety of technologies to increase the data transmission rate to meet the transmission requirements of large amounts of data such as high-definition video and virtual reality. Various technologies such as large-scale multiple-input multiple-output (MIMO) technology, non-orthogonal multiple access technology, simultaneous full-duplex communication technology, new modulation technology, new coding technology, and high-order modulation technology. Through these technologies, the peak rate can reach the standard of Gbit / s.

[0046] As an example, the latency level of the air interface needs to be around 1ms to meet real-time applications such as autonomous driving and telemedicine.

[0047] As an example, ultra-large network capacity can provide connectivity for hundreds of billions of devices, thus meeting the communication needs of the Internet of Things.

[0048] As an example, the spectrum efficiency of the NR system is more than 10 times higher than that of the LTE system. Based on continuous wide-area coverage and high mobility, the user experience rate can reach 100Mbit / s. It can be seen that the traffic density and connection density have been greatly improved.

[0049] In addition, the improvement of system coordination and intelligence has further improved the flexibility of the network. System coordination can be manifested as multi-user, multi-point, multi-antenna, and multi-input coordinated networking. Based on coordination and intelligence, networks can be flexibly and automatically adjusted.

[0050] However, in a communication system, the power consumption of network equipment (for example, base station equipment) is usually high. In order to save the power consumption of the base station equipment, it is necessary to optimize the system message. For ease of understanding, the following is an example of NR system message.

[0051] NR system messages can be divided into master information block (MIB) messages and some SIB messages. MIB messages are usually sent on the broadcast channel (BCH). The MIB transmission period is 80ms. MIB can be sent repeatedly within the 80ms period. In addition, the MIB message also includes the parameters required by the terminal device to obtain the SIB1 message from the cell.

[0052] The SIB1 message can also be called a SIB type 1 message. SIB1 is transmitted on the downlink shared channel (DL-SCH) with a period of 160ms. Within 160ms, SIB can also be repeatedly sent with a variable transmission repetition period. The default transmission repetition period of SIB1 is 20ms, and the actual transmission repetition period depends on the network implementation. For example, for the multiplexing mode 1 of the synchronization signal block (SSB) and the control resource set (CORESET), the transmission repetition period of SIB1 is 20ms. For another example, for the multiplexing mode 2 / 3 of SSB and CORESET, the transmission repetition period of SIB1 is the same as that of SSB.

[0053] In the embodiment of the present application, SSB may also represent a synchronization signal / physical broadcast channel block (synchronizationsignal and PBCH block).

[0054] SIB1 can carry key information required for terminal devices to access the cell, such as random access parameters. SIB1 also includes information related to the availability and scheduling of other SIBs, such as mapping of other SIBs to system information (SI) messages, periodicity, SI window size, etc. SIB1 can also indicate whether one or more SIBs are provided only on demand, in which case SIB1 can also provide the physical random access channel (PRACH) configuration required by the terminal device to request the SI required by the terminal device. SIB1 also contains radio resource configuration information common to all terminal devices and cell barring information applied to unified access control.

[0055] When SIB1 includes relevant information about other SIBs, other SIB messages may be provided through periodic broadcast or on-demand. If other SIBs are provided on-demand, SIB1 may also include information for the terminal device to perform SI requests.

[0056] SIB messages other than SIB1 (other SIBs) can be included in the SI message. These messages can also be transmitted on DL-SCH. Each SI message can be transmitted periodically within a time domain window (called SI window). Exemplarily, only SIBs with the same periodicity can be mapped to the same SI message. When each SI message is sent within a periodically occurring time domain window, all SI messages can have an SI window of the same length. Each SI message is associated with an SI window, and the SI windows of different SI messages do not overlap. That is, only the corresponding SI message is sent within an SI window. In addition, the system can send SI messages multiple times within the SI window.

[0057] The above article introduces various SIB messages using NR's system message as an example. Network equipment (e.g., gNB) can periodically send SIB1 for initial access and schedule other SIBs for terminal devices in idle / inactive mode. Even if there is no demand from the terminal device or no terminal device resides on the cell, the network device will always transmit. It can be seen that in some scenarios, the periodic transmission of SIB1 by the network device may result in a large waste of energy.

[0058] In order to achieve network energy saving, it is necessary to reduce unnecessary SIB1 transmission and associated PRACH monitoring. Therefore, sending SIB1 on demand to terminal devices in idle / inactive state becomes a research direction to provide network devices with more opportunities to be in sleep mode. For example, how to implement on-demand SIB1 transmission to save energy of network devices is a technical difficulty worthy of research.

[0059] In some embodiments, a cell that sends SIB1 on demand is called an energy-saving cell, such as a network energy saving (NES) cell. For a terminal device in idle mode, since the NES cell does not carry SIB1 information when sending SSB, the terminal device needs to send relevant request information / signaling to request the NES cell to send SIB1 information.

[0060] Optionally, the request information of the on-demand SIB1 may be an uplink wake-up signal (WUS), or other on-demand information / signaling requesting to send SIB1. WUS is a signal for triggering the on-demand SIB1 in the uplink (UL).

[0061] Optionally, the terminal device may send the request information for triggering the on-demand SIB1 via a random access channel (RACH) or a separate signal or sequence. For example, the terminal device may send the WUS via a PRACH.

[0062] For ease of understanding, let's take WUS as an example. Figure 2 The transmission of on-demand SIB1 is schematically illustrated. Figure 2 The terminal device 210 is in the cell A (Cell#A) provided with services by the network device 220.

[0063] like Figure 2 As shown, cell A always periodically sends SSB without SIB1, that is, cell A sends SIB1 on demand. When a terminal device attempts to access cell A that sends SIB1 on demand, the terminal device can trigger cell A to send SIB1 by sending an uplink WUS to cell A. When a cell detects a WUS or an on-demand request, the cell can send an on-demand SIB1 to the terminal device 210.

[0064] Combination of the above Figure 2 A method for sending on-demand SIB1 based on request information is introduced. When a terminal device sends a request information such as WUS, the terminal device needs to obtain time and frequency resources for WUS so as to send WUS in an idle or inactive state. However, how a terminal device in an idle or inactive state obtains time and frequency resources for request information such as WUS is a problem that needs to be considered.

[0065] Regarding time-frequency resources, the following takes the NR system as an example to introduce the method of configuring time-frequency resources based on the control resource set (CORESET) and the search space (searchspace). CORESET mainly describes the distribution of frequency domain resources, and the search space mainly describes the distribution of time domain resources. Therefore, the specific time-frequency domain resources can be determined based on the pairing of CORESET and search space.

[0066] In NR, the network usually configures multiple CORESETs and search spaces in the bandwidth part (BWP). By pairing CORESETs and search spaces, one (block) or multiple time-frequency resources for different purposes can be determined.

[0067] Exemplarily, CORESET and search space may correspond one to one. For example, a pair of time-frequency domain resources determined by CORESET and search space may be used to send downlink control information (DCI) format 0_0 / 1_0 (i.e., DCI_format 0_0 / 1_0); another pair of time-frequency domain resources determined by CORESET and search space may be used to send DCI_format 0_1 / 1_1.

[0068] Exemplarily, CORESET and search space can be one-to-many. For example, one CORESET can correspond to multiple search spaces.

[0069] Exemplarily, search space 0 (Searchspace0) is configured for MIB. The time-frequency domain resources determined by search space 0 in combination with CORESET0 can be used for the terminal device to receive remaining minimum system information (RMSI).

[0070] Exemplarily, the search space configured by the network side includes a common search space (CSS) and a UE specific search space (USS). The search space configured by the network side and its associated CORESET configuration can be used to determine the time-frequency resource scheduling of the physical downlink control channel (PDCCH). Furthermore, PDCCH can be used to carry scheduling information for uplink or downlink data. The terminal device needs to periodically monitor PDCCH to obtain uplink or downlink data scheduling information. The monitoring period can be 1 time slot.

[0071] As an example, specific types and applications of search spaces are shown in Table 1.

[0072] Table 1

[0073]

[0074] As shown in Table 1, in the related art, five types of search spaces are mainly included in CSS. For example, type 0 search space can be used to search SIB1; type 0A search space can be used to search other system information (OSI); type 1 search space can be used to search message 2 (MSG2), message 4 (MSG4), etc.; type 2 search space can be used to search paging messages; type 3 search space can be used to search group common DCI (group common DCI).

[0075] Continuing to refer to Table 1, in USS, the terminal device can detect whether the PDCCH has scheduling information. Among them, the downlink scheduling information can be the physical downlink shared channel (physical downlink shared channel, PDSCH) resource scheduling information; the uplink scheduling information can be the physical uplink shared channel (physical uplink shared channel, PUSCH) resource scheduling information. For the downlink scheduling information, the terminal device can receive data through the PDSCH according to the scheduling information. For the uplink scheduling information, the terminal device can send data through the PUSCH according to the scheduling information. PDCCH can also be used to carry uplink power control command words, time slot formats and other information. The PDCCH carrying different control information can be scrambled using different radio network temporary identifiers (radio network temporary identifier, RNTI).

[0076] Exemplarily, for USS, the base station may configure at least one search space set (SS set) for the terminal device. The terminal device may monitor the PDCCH based on the SS set. For example, the terminal device may monitor the PDCCH according to the parameters of the SS set.

[0077] Normally, the terminal device only knows that the PDCCH will be sent within the resource block (RB) range provided in the CORESET, but does not know on which RBs it will be sent. Therefore, the terminal device needs to further perform PDCCH blind detection in different search spaces or CORESETs, and the blind detection process will only be stopped if the decoding is successful. Exemplarily, the terminal device needs to search for PDCCH information according to different RNTI types. Exemplarily, the terminal device needs to continuously demodulate the PDCCH candidate set to obtain and determine the control channel element (CCE) index of each candidate PDCCH in the CORESET. The CCE index can be used to determine the starting position of the CCE and its number. The position of the specific CCE can also be determined by the search space function.

[0078] The above describes the method by which the terminal device determines the system information or resource scheduling information through the search space. When the network device sends SIB1 on demand, the MIB does not need to carry the SIB1 information. In this scenario, the configuration of the relevant search space is no longer applicable. For example, in the NES cell, the search space 0 or CORESET0 of the MIB may be changed to adapt to the transmission requirements of the WUS.

[0079] In summary, since SIB1 is sent on demand, the WUS that triggers SIB1 to send requires corresponding resource configuration information so that the terminal device knows on which time-frequency resources to send the WUS. Therefore, how to configure the time-frequency resources for WUS becomes a technical problem that needs to be solved.

[0080] It should be noted that the above-mentioned issue of how the network device configures WUS time-frequency resources is only an example. The embodiments of the present application can be applied to the configuration of time-frequency resources for triggering any type of information / signaling sent by on-demand SIB.

[0081] In response to the above problems, an embodiment of the present application proposes a method for wireless communication. Through this method, a terminal device sends a first request for requesting a first SIB on a first resource, and the configuration information of the first resource is carried in a master information block (MIB). It can be seen that the network device will set new configuration information in the MIB to indicate the first resource used to send the first request. After setting the configuration information of the first resource in the MIB, the terminal device can determine the time-frequency resources of the first request through the MIB to trigger the sending of the first SIB of the energy-saving cell.

[0082] For ease of understanding, the following Figure 3 The method proposed in the embodiment of the present application is described in detail. Figure 3 It is introduced from the perspective of the interaction between terminal devices and network devices.

[0083] The terminal device is any terminal that can request the on-demand SIB, which is not limited here. In some embodiments, the terminal device can be in an idle state or an inactive state. For example, the terminal device can be a UE in an idle / inactive mode.

[0084] As an example, the terminal device is in an idle state. When the terminal device performs initial access to the NES cell, since the SSB sent by the NES cell does not include SIB1, the terminal device can request the network device serving the NES cell to send an on-demand SIB1.

[0085] As an example, the terminal device is in an inactive state. When the terminal device recovers the connection with the NES cell, the terminal device may wake up the NES cell and request the network device serving the NES cell to send an on-demand SIB1.

[0086] In some embodiments, the terminal device may be a communication device supporting the NES function. Exemplarily, when the first SIB is not carried in the SSB or MIB, the terminal device may request the first SIB from the network device based on the NES function.

[0087] In some embodiments, the serving cell corresponding to the terminal device is an energy-saving cell. For example, the cell where the terminal device is located is an NES cell. Figure 2 For example, cell A is a NES cell, and the terminal device may be the terminal device 210 in cell A.

[0088] As an example, the service cell where the terminal device is located is an NTN cell, that is, the terminal device is a ground terminal in the NTN.

[0089] The network device may provide services for the cell where the terminal device is located. The network device may be any of the network devices described above, and is not limited here. For example, the network device may be any of the base stations described above.

[0090] In some embodiments, the network device may be a communication device supporting the NES function. For example, the network device may increase the sleep time of the serving cell based on the NES function. For example, the network device may implement an energy-saving configuration in which the cell sends SIB1 on demand.

[0091] As an example, the network device may send a periodic SSB, which does not include the configuration information of SIB1. Figure 2 The network device 220 in.

[0092] As an example, the network device may send corresponding information or messages in different search spaces. For example, the network device indicates resource information occupied by CORESET0 and search space 0 through configuration parameters in the MIB. The MIB does not carry information about SIB1.

[0093] As an example, the network device may monitor the first request sent by the terminal device and respond in time. That is, even if the first cell is in the sleep mode, the first request sent by the terminal device will be monitored.

[0094] As an example, the network device may receive a first request sent by the terminal device, which will be described below in conjunction with step S320.

[0095] As an example, the cell served by the network device is an NTN cell. Exemplarily, the network device may be a satellite in the NTN that covers the area where the terminal device is located, or may be a ground gateway or ground network device in the NTN that communicates with the satellite.

[0096] In some embodiments, the terminal device and the network device may be relative. For example, relative to the network device, the relay device may also be referred to as the terminal device. For example, relative to the terminal device, the relay device may also be referred to as the network device.

[0097] See also Figure 3 , in step S310, the terminal device determines the configuration information of the first resource.

[0098] The first resource is used by the terminal device to send a first request for requesting a first SIB. The network device triggers the sending of the first SIB based on the request of the terminal device, so the first SIB can also be called an on-demand SIB. This will be described in detail below in conjunction with step S320.

[0099] Optionally, the first request may include the WUS mentioned above, and may also include uplink information or signaling similar to the WUS function.

[0100] The first resource may be a time-frequency domain resource of any size, which is not limited here. In some embodiments, the first resource may include one or more time domain units. The time domain unit may be a symbol, a time slot, or a time domain segment of other lengths. In some embodiments, the first resource may include one or more frequency domain units. The frequency domain unit may be a frequency segment of any length, such as a subcarrier.

[0101] The configuration information of the first resource may be used to indicate the first resource. Exemplarily, the configuration information of the first resource may indicate the number of symbols occupied by the first resource, the starting symbol position, etc. Exemplarily, the configuration information of the first resource may indicate the number of RBs occupied by the first resource.

[0102] The configuration information of the first resource may be carried in the MIB, so that the terminal device in an idle state or an inactive state can determine the configuration information of the first resource in a timely manner. In some embodiments, the configuration information of the first resource is indicated by a configuration parameter in the MIB.

[0103] As an example, the configuration parameter in the MIB may be pdcch-ConfigSIB1. The MIB may reuse an existing configuration parameter to indicate the configuration information of the first resource. For example, the terminal device may detect the configuration information of the first resource in the search space indicated by the parameter.

[0104] Exemplarily, the upper four bits in pdcch-ConfigSIB1 can represent CORESET0 (controlResourceSetZero), which can be used to obtain the CORESET0 format, the number of frequency domain resource occupied symbols, the number of RBs and the RB offset; the lower four bits can represent search space 0, which can be used to obtain the system frame number (SFN), time slot index and start symbol of CORESET0.

[0105] As an example, the configuration parameter in the MIB may be pdcch-ConfigWUS. It can be seen that the MIB may add a new configuration parameter to indicate the configuration information of the first resource. For example, the configuration information of the first resource is indicated by pdcch-ConfigWUS. The terminal device may detect the configuration information of the first resource in the search space indicated by the parameter.

[0106] Exemplarily, the upper four bits in pdcch-ConfigWUS may represent CORESET0, which is used to obtain the CORESET0 format, the number of frequency domain resource occupied symbols, the number of RBs, and the RB offset. The lower four bits in pdcch-ConfigWUS may represent search space 0, which is used to obtain the SFN, time slot index, and start symbol of CORESET0.

[0107] As a possible implementation manner, the time-frequency resource information of WUS may be configured in the parameter pdcch-ConfigWUS.

[0108] In some embodiments, the configuration information of the first resource may be carried in an SSB sent by the network device.

[0109] In some embodiments, the configuration information of the first resource may be in the first search space. That is, the terminal device may detect the configuration information of the first resource in the first search space. Therefore, the first search space is a search space for the first request (WUS). As an example, the terminal device may detect the PDCCH in the first search space to determine the configuration information of the first resource. That is, the configuration information of the first resource is indicated by the PDCCH in the first search space.

[0110] It should be understood that the terminal device performs detection on the search space, which can be expressed as the terminal device listening, monitoring or searching on the search space. The detection performed by the terminal device on the search space can include the PDCCH blind detection mentioned above.

[0111] In some embodiments, the first search space may be any search space in a common search space (CSS), or may be a specific search space corresponding to a terminal device. Optionally, the specific search space corresponding to the terminal device belongs to the UE-specific search space (USS) described above. The specific search space corresponding to the terminal device may also be referred to as a proprietary search space or a dedicated search space of the terminal device.

[0112] Optionally, the search space corresponding to the WUS may be in a public search space, or may be set in a search space dedicated to the terminal device.

[0113] As an example, when the first search space is a public search space, the terminal device can detect or listen in the public search space according to the configuration of the network device to determine the configuration information of the first resource. Exemplarily, the terminal device can determine the first search space from multiple search spaces according to the type of the first search space, and then detect the configuration information of the first resource in the first search space.

[0114] As an example, when the first search space is a specific search space corresponding to the terminal device, the network device will configure the relevant parameters of the specific search space. The relevant parameters may include a search space identity (ID), a monitoring period, a symbol position, and the like.

[0115] As an example, within a specific search space of a terminal device, a network device or a terminal device may set a symbol position for specifically monitoring the first resource configuration information in each time slot. Exemplarily, the symbol position to be monitored may be a number of consecutive symbols. Exemplarily, the symbol position to be monitored may be set according to odd and even symbols, or according to a certain rule.

[0116] In some embodiments, the type to which the first search space belongs may be an existing search space type. For example, the type to which the first search space belongs may be a search space type mentioned in Table 1. Optionally, since the first resource is used to send request information for triggering on-demand SIB1, the type to which the first search space belongs may be a search space for sending SIB1 in Table 1. That is, in the NES cell, the first search space configured by the network side may replace the original SIB1 search space.

[0117] As an example, the type to which the first search space belongs may be Type0-PDCCH CSS, that is, embodiment 1.

[0118] As an example, when the search space corresponding to the first SIB is the second search space, the search space type corresponding to the first search space is the same as the search space type corresponding to the second search space. For example, the search space type for WUS is the same as the search space type for SIB1.

[0119] As an example, the first search space can directly use the search space configured by the network for SIB1. For example, the first search space can be used to send the configuration information of the first resource and / or the first SIB, so the first search space is the same as the second search space. In these scenarios, the first search space may send SIB1 while sending WUS, and distinguish PDCCH through different scrambling.

[0120] As an example, the network end may periodically configure multiple search spaces including the first search space. The network end may send configuration information of the first resource in the first search space of the current period, and send the first SIB in the first search space corresponding to the next period.

[0121] As an example, when the first request is WUS, PDCCH-configWUS may indicate through PDCCH-configcommon that the search space used for WUS replaces the original SIB1 search space.

[0122] In some embodiments, the network terminal may set a new search space for the resources of the first request. That is, the first search space used to send the first request is a newly set search space type, and there is no need to reuse the existing search space type. Exemplarily, when the first search space used for the first request belongs to a search space of the first type, and the second search space used for the first SIB belongs to a search space of the second type, the first type is different from the second type. Furthermore, the search space of the first type is a dedicated search space related to the first request.

[0123] As an example, the type to which the first search space belongs may be Type0B-PDCCH CSS, that is, embodiment 2.

[0124] As an example, after the terminal device sends an uplink WUS in idle / inactive mode, the NTN may send SIB1 information in the next cycle or within a time specified by the protocol.

[0125] As an example, PDCCH-configcommon in MIB can indicate that the search space of the original SIB1 can be reserved for on-demand SIB1 (first SIB). When supporting on-demand SIB1, the network device still sends on-demand SIB1 through MIB, and sets a new search space Type0B-PDCCH CSS to support resource configuration information of WUS.

[0126] As described above, the type of the first search space used for the first request may be an existing one or a newly set one. The following takes WUS as an example and combines Table 2 to exemplarily illustrate two possible implementations.

[0127] Table 2

[0128]

[0129] As shown in Table 2, in Embodiment 1, the type of the first search space used for WUS is the existing search space type used for SIB1, namely Type0-PDCCH CSS. Based on this embodiment, the network end can continue to use the existing search space setting method, and only indicate in the configuration information whether the resources of the current period are used to send the configuration information of the first resource or the SIB1 information. In Embodiment 2, the type of the first search space used for WUS is the newly set Type0B-PDCCH CSS. Based on this embodiment, the newly set search space can avoid conflicts with the search space of WUS and the existing search space, and better meet the scenario of sending on-demand SIB1 and WUS simultaneously in one period.

[0130] In some embodiments, the first SIB may be configured on a specific search space corresponding to the terminal device, and the specific search space may be determined by a parameter in a radio resource control (RRC). Exemplarily, the network device may configure a dedicated search space for the terminal device. The terminal device may determine its dedicated search space based on the parameter in the RRC message.

[0131] As an example, when the first SIB is on a specific search space, the second search space may be one of a plurality of specific search spaces.

[0132] As an example, when the second search space is a specific search space corresponding to the terminal device, the network device may configure relevant parameters of the specific search space, which may include a search space ID, a monitoring period, a symbol position, and the like.

[0133] As an example, within a specific search space of a terminal device, a network device or a terminal device may set a symbol position for specifically monitoring a first SIB in each time slot. For example, the symbol position to be monitored may be a plurality of consecutive symbols. For example, the symbol position to be monitored may be set according to odd and even symbols, or according to a certain rule.

[0134] As an example, the specific search space of the terminal device can be dynamically adjusted according to network requirements and terminal device capabilities. For example, the network device can adjust the specific search space corresponding to the terminal device in real time based on the terminal device capability information and actual communication requirements.

[0135] The terminal device determines the configuration information of the first resource, which may include the terminal device receiving the configuration information of the first resource sent by the network device. That is, the configuration information of the first resource may be detected by the terminal device in the search space, or may be directly received.

[0136] As an example, after the terminal device detects the resource configuration information of the WUS in the first search space, it can determine the first resource according to the resource configuration information. After determining the first resource, the terminal device can send the first request on the first resource.

[0137] Continue to see Figure 3 In step S320, the terminal device sends a first request on the first resource. As mentioned above, the first request is used by the terminal device to request the first SIB from the network device.

[0138] In some embodiments, the first SIB is one or more SIBs sent by the network device according to the needs of the terminal device. It can be seen that the network device does not need to send the first SIB periodically, but sends the first SIB on demand to achieve energy saving. For example, the network device does not need to send SIB1 according to a period of 160ms and a transmission repetition period within 160ms, but sends it according to the first request.

[0139] In some embodiments, the first SIB includes SIB1. The network device may send SIB1 according to the request of the terminal device, thereby reducing unnecessary SIB1 transmission. As an example, the first SIB may include SIB1 and other SIBs in the serving cell, that is, the first SIB may be a partial SIB including SIB1 in the serving cell.

[0140] In some embodiments, the first SIB is the on-demand SIB1 described above. That is, the first SIB may be SIB1.

[0141] In some implementations, when the serving cell is an NES cell, the sent SSB may not contain the parameter set of SIB1, thereby reducing transmission overhead. However, part of the configuration of cell random access is provided in SIB1. When the terminal device finds the serving cell and wants to access the serving cell, since the received SSB does not have the parameters of SIB1, it needs to request the first SIB.

[0142] In some embodiments, the first SIB is a SIB required by the terminal device, and the first request may also be referred to as an on-demand SIB request.

[0143] In some embodiments, the network device may send the first SIB at different times in the second search space. When the terminal device detects the first SIB in the second search space, it needs to perform blind detection on multiple time-frequency resources in the second search space.

[0144] It should be understood that the terminal device detecting the first SIB in the second search space may include detecting relevant information of the first SIB. When the time-frequency resources in the second search space are used to directly send the first SIB, the terminal device may directly monitor the first SIB in the second search space. When the time-frequency resources in the second search space are used to send relevant information of the first SIB, the terminal device receives the first SIB after detecting the relevant information.

[0145] In some embodiments, the first SIB may be sent via at least one of the multiple time-frequency resources. In order to facilitate the terminal device to determine the transmission resource of the first SIB, the network device may correspond the time-frequency resource of the first SIB to the index of the synchronization signal block (SSB index). In other words, the SSB index received by the terminal device may be associated with the first SIB.

[0146] Exemplarily, in the second search space, the resources of the search space can be identified according to the indexes of different SSBs, so as to distinguish the specific time-frequency resource information corresponding to different SSB indexes. These time-frequency resources can be multiple time-frequency resources for sending the first SIB. Therefore, the first SIB sent by the network device at different times can correspond to different SSB indexes, so that the terminal device can determine the time-frequency resources of the first SIB according to the received SSB index, thereby receiving the first SIB in a timely manner.

[0147] Exemplarily, the terminal device may determine at least one time-frequency resource for sending the first SIB according to the index of the received SSB. Thereafter, the terminal device may receive the first SIB on the at least one time-frequency resource.

[0148] As an example, multiple time-frequency resources may correspond to multiple SSBs one by one, so as to more flexibly indicate the time-frequency resources of the first SIB. For example, the indexes of the multiple time-frequency resources may correspond to the indexes of the multiple SSBs respectively.

[0149] As an example, any of the multiple time-frequency resources may correspond to multiple SSBs to apply to certain scenarios where one-to-one correspondence is not required, thereby reducing signaling overhead. For example, the index of a time-frequency resource may correspond to the indexes of multiple SSBs.

[0150] Optionally, the one-to-many relationship between multiple time-frequency resources and multiple SSBs can be any one of the following: one time-frequency resource corresponds to two SSBs, one time-frequency resource corresponds to four SSBs, one time-frequency resource corresponds to eight SSBs, etc.

[0151] As an embodiment, when a time-frequency resource for sending the first SIB is applicable to multiple received SSB indexes, it can be used for scenarios where the terminal device is not moving at a high speed or the surrounding environment does not change much. Especially in the NTN scenario, the strength of different SSBs received by the terminal device is not much different, so the first SIB sent by the time-frequency resource can correspond to all SSBs in an SSB time window.

[0152] As an embodiment, if the terminal device moves at a high speed or in a complex environment, a SSB transmission window can be divided into multiple sub-time windows. Each sub-time window can correspond to multiple SSB indexes, and the first SIB sent in a time-frequency resource can correspond to all SSB indexes in the sub-time window.

[0153] As an example, multiple time-frequency resources may correspond to any SSB in multiple SSBs. For example, the index of multiple time-frequency resources may correspond to the index of one SSB. Optionally, the many-to-one relationship between multiple time-frequency resources and multiple SSBs may be any one of the following: two time-frequency resources correspond to one SSB, four time-frequency resources correspond to one SSB, eight time-frequency resources correspond to one SSB, etc.

[0154] As an example, in the case of frequency range 2 (FR2), the network device and the terminal device can know which SSB index on which beam the first SIB corresponds to based on the above correspondence.

[0155] As an example, there may be a correspondence between an SSB index within an SSB transmission window and an on-demand SIB1 and the preamble therein. Among them, the on-demand SIB1 may be the time-frequency resource of the on-demand SIB1. The correspondence between the SSB index and the on-demand SIB1 time-frequency resource may be one-to-one or not. As described above, an SSB index may correspond to the time-frequency resources of one or more first SIBs. Exemplarily, multiple SSB indexes may correspond to the time-frequency resources of a first SIB.

[0156] For ease of understanding, the following Figures 4 to 7 , an exemplary description is given of the correspondence between the SSB index and the on-demand SIB1 time-frequency resources. Figures 4 to 7 In the example, the network device sends 64 SSBs, namely SSB0 to SSB63. The multiple time-frequency resources used to send the on-demand SIB1 can be represented as S1#0, S1#1, S1#2, etc., and so on.

[0157] exist Figure 4 and Figure 6 In the example, multiple SSBs corresponding to multiple SSB indexes occupy different time domain resources. Figure 5 and Figure 7 In the example, multiple SSBs corresponding to multiple SSB indexes are time-frequency multiplexed, that is, two SSBs in the same time domain resources occupy different frequency domain resources respectively.

[0158] exist Figure 4 and Figure 5 In the scenario where there is a one-to-one correspondence between multiple time-frequency resources of the on-demand SIB1 and multiple SSB indexes. Figure 4 and Figure 5 As shown, the indexes of the 64 on-demand SIB1 time-frequency resources corresponding to the 64 SSB indices are S1#0 to S1#63 respectively.

[0159] exist Figure 6 and Figure 7 In this scenario, the relationship between the SSB index and the on-demand SIB1 time-frequency resources is many-to-one. Figure 6 and Figure 7 As shown, the many-to-one scenario is that 8 SSB indexes correspond to 1 on-demand SIB1 time-frequency resource. Therefore, the indexes of the 64 on-demand SIB1 time-frequency resources corresponding to the 64 SSB indexes are S1#0 to S1#7 respectively.

[0160] Combination of the above Figures 4 to 7 , introduces multiple implementations of the time-frequency resources of the first SIB corresponding to the SSB. Regardless of which implementation is adopted, the time-frequency resources for sending the first SIB can belong to the public search space or the unique search space, which is not limited here.

[0161] The first request may be implemented in a variety of ways. That is, the first terminal device may send information for requesting the first SIB in a variety of ways. Optionally, the first request may include one or more of the following: a WUS, requirement information / requirement signaling for requesting the first SIB, a first sequence for requesting the first SIB, and a preamble index related to the first SIB.

[0162] As an example, the demand signaling may be control signaling or data signaling, which is not limited here.

[0163] In some embodiments, after sending the first request, the terminal device may detect the first SIB in the second search space. After receiving the first request sent by the terminal device, the network device may send the first SIB in the second search space for the terminal device to receive.

[0164] Combination of the above Figures 3 to 7 , two embodiments of reusing the existing search space and configuring a new search space for the configuration information of the first resource are introduced. Regardless of the type of the first search space used for the first resource, the time-frequency resources used to send the first SIB can have a certain correspondence with the SSB, so that the terminal device can determine the time domain position of receiving the first SIB according to the received SSB.

[0165] In some embodiments, the terminal device detects the PDCCH in the first search space or the second search space. The PDCCH may indicate the configuration information of the first resource or the first SIB. Exemplarily, the PDCCH may indicate the relevant information of the first SIB. It should be understood that the PDCCH is only an example, and other channels or signals may be used to indicate the configuration information of the first resource or the first SIB.

[0166] As can be seen from the foregoing, the terminal device does not know on which RBs in the CORESET the PDCCH will be sent, so the terminal device needs to perform a blind detection process to locate the PDCCH it wants to receive. In order to minimize or avoid the blind detection process in the search space, the embodiment of the present application also proposes a method for directly locating the PDCCH position. Through this method, the terminal device can directly locate the PDCCH in the CORESET, thereby more quickly determining the time-frequency resources for sending the first request or determining the first SIB to improve decoding efficiency.

[0167] In some embodiments, the control resource set (CORESET) corresponding to the PDCCH for indicating the first resource configuration information or the first SIB may be the first control resource set (i.e., the first CORESET). The position of the PDCCH in the first CORESET may be related to one or more of the following information: the starting symbol position of the first CORESET; the number of RBs occupied by each CCE in the first CORESET; the number of symbols or RBs covered by the first CORESET; the number of CCEs included in the PDCCH; and the ID of the terminal device.

[0168] As an example, the starting symbol of the first CORESET is the first symbol of the time domain resources occupied by the first CORESET.

[0169] As an example, the number of RBs occupied by each CCE in the first CORESET may be determined according to a protocol or may be dynamically indicated.

[0170] As an example, the number of symbols or RBs covered by the first CORESET is determined when the network performs configuration.

[0171] As an example, the number of CCEs included in the PDCCH may also be referred to as the number of CCEs corresponding to the terminal device in the CORESET.

[0172] Optionally, the starting position of the PDCCH in the first CORESET can be determined according to the ID of the terminal device and the number of CCEs included in the PDCCH. CCE CCE, N CCE is a positive integer. The starting position of PDCCH in the first CORESET can be CCE The index of the starting CCE among the CCEs is represented by the index of the starting CCE. Index Can be:

[0173] CCE Index =UE ID mod N CCE ;

[0174] Among them, UE ID The ID of the terminal device.

[0175] Optionally, the symbol position of the PDCCH in the first CORESET can be determined according to the starting symbol of the first CORESET, the ID of the terminal device, and the number of symbols covered by the first CORESET. Assume that the number of symbols covered by the first CORESET is M, where M is a positive integer. symbol,position Can be:

[0176] PDCCH symbol,position =S0+(UE ID mod M);

[0177] Among them, S0 is the starting symbol position of the first CORESET.

[0178] Optionally, the frequency domain position of the PDCCH in the first CORESET can be determined according to the number of RBs occupied by each CCE, the index of the starting CCE, and the number of RBs covered by the first CORESET. frequency,position Can be:

[0179] PDCCH frequency,position =(CCE Index ×CCE Size )mod N RB ;

[0180] Among them, CCE Size The number of RBs occupied by each CCE, CCE Size is a positive integer, N RB is the number of RBs covered by the first CORESET, N RB Is a positive integer.

[0181] Combination of the above Figures 1 to 7 , describes in detail the method embodiment of the present application. Figures 8 to 10 , describes the device embodiment of the present application in detail. It should be understood that the description of the device embodiment corresponds to the description of the method embodiment, so the parts not described in detail can refer to the previous method embodiment.

[0182] Figure 8 800 is a schematic block diagram of a device for wireless communication according to an embodiment of the present application. The device 800 may be any terminal device described above. Figure 8 The illustrated apparatus 800 includes a determining unit 810 and a sending unit 820 .

[0183] The determining unit 810 may be configured to determine configuration information of the first resource.

[0184] The sending unit 820 may be configured to send a first request on a first resource, wherein configuration information of the first resource is carried in a master information block, and the first request is used to request a first SIB.

[0185] Optionally, the first request includes WUS, and the configuration information of the first resource is indicated by pdcch-ConfigWUS in the main information block.

[0186] Optionally, the determination unit is further used to detect configuration information of the first resource in a first search space; wherein the first search space is a public search space or a specific search space corresponding to the terminal device.

[0187] Optionally, the search space corresponding to the first SIB is the second search space, and the apparatus 800 further includes a first detection unit, which can be used to detect the first SIB in the second search space after sending the first request.

[0188] Optionally, a search space type corresponding to the first search space is the same as a search space type corresponding to the second search space.

[0189] Optionally, the first search space belongs to a first type of search space, the second search space belongs to a second type of search space, the first type is different from the second type, and the first type of search space is a dedicated search space related to the first request.

[0190] Optionally, the first SIB is sent through at least one time-frequency resource among multiple time-frequency resources, and the determination unit 810 is also used to determine at least one time-frequency resource based on the index of the received synchronization signal block; the device 800 also includes a receiving unit, which can be used to receive the first SIB on at least one time-frequency resource.

[0191] Optionally, multiple time-frequency resources correspond one-to-one to multiple synchronization signal blocks, or any time-frequency resource among the multiple time-frequency resources corresponds to multiple synchronization signal blocks.

[0192] Optionally, the first SIB is in a specific search space corresponding to the terminal device, and the specific search space is determined by parameters in RRC.

[0193] Optionally, the apparatus 800 further includes a second detection unit, which may be used to detect a PDCCH in the first search space or the second search space; wherein the PDCCH is used to indicate configuration information of the first resource or a first SIB.

[0194] Optionally, the PDCCH corresponds to a first control resource set, and the position of the PDCCH in the first control resource set is related to one or more of the following information: the starting symbol position of the first control resource set; the number of RBs occupied by each CCE in the first control resource set; the number of symbols or RBs covered by the first control resource set; the number of CCEs included in the PDCCH; and the ID of the terminal device.

[0195] Optionally, PDCCH includes N CCE CCE, N CCE is a positive integer. The starting position of the PDCCH in the first control resource set is determined by the index of the starting CCE CCE Index Indicates that CCE Index for:

[0196] CCE Index =UE ID mod N CCE ;

[0197] Among them, UE ID The ID of the terminal device.

[0198] Optionally, the PDCCH is located at a corresponding position PDCCH in the first control resource set. symbol,position for:

[0199] PDCCH symbol,position =S0+(UE ID mod M);

[0200] Wherein, S0 is the starting symbol position of the first control resource set, M is the number of symbols covered by the first control resource set, and M is a positive integer.

[0201] Optionally, the frequency domain position of the PDCCH in the first control resource set is PDCCH frequency,position for:

[0202] PDCCH frequency,position =(CCE Index ×CCE Size )mod N RB ;

[0203] Among them, CCE Size The number of RBs occupied by each CCE, CCE Size is a positive integer, N RB is the number of RBs covered by the first control resource set, N RB Is a positive integer.

[0204] Optionally, the first SIB includes SIB1, and the terminal device is in an idle state or an inactive state.

[0205] Fig. 9 900 is a schematic block diagram of another device for wireless communication according to an embodiment of the present application. The device 900 may be any network device described above. Fig. 9 The device 900 shown includes a sending unit 910 and a receiving unit 920 .

[0206] The sending unit 910 may be configured to send configuration information of the first resource.

[0207] The receiving unit 920 may be configured to receive a first request sent by a terminal device on a first resource, wherein configuration information of the first resource is carried in a master information block, and the first request is used to request a first SIB.

[0208] Optionally, the first request includes WUS, and the configuration information of the first resource is indicated by pdcch-ConfigWUS in the main information block.

[0209] Optionally, configuration information of the first resource is sent through a first search space, and the first search space is a public search space or a specific search space corresponding to the terminal device.

[0210] Optionally, the search space corresponding to the first SIB is the second search space, and the sending unit is further used to send the first SIB on the second search space after receiving the first request.

[0211] Optionally, a search space type corresponding to the first search space is the same as a search space type corresponding to the second search space.

[0212] Optionally, the first search space belongs to a first type of search space, the second search space belongs to a second type of search space, the first type is different from the second type, and the first type of search space is a dedicated search space related to the first request.

[0213] Optionally, the first SIB is sent through at least one time-frequency resource among multiple time-frequency resources. The apparatus 900 also includes a determination unit, which can be used to determine at least one time-frequency resource according to the index of the synchronization signal block received by the terminal device; the sending unit 910 is also used to send the first SIB on at least one time-frequency resource.

[0214] Optionally, multiple time-frequency resources correspond one-to-one to multiple synchronization signal blocks, or any time-frequency resource among the multiple time-frequency resources corresponds to multiple synchronization signal blocks.

[0215] Optionally, the first SIB is in a specific search space corresponding to the terminal device, and the specific search space is determined by parameters in RRC.

[0216] Optionally, the sending unit 910 is further used to send a PDCCH in the first search space or the second search space; wherein the PDCCH is used to indicate configuration information of the first resource or the first SIB.

[0217] Optionally, the PDCCH corresponds to a first control resource set, and the position of the PDCCH in the first control resource set is related to one or more of the following information: the starting symbol position of the first control resource set; the number of RBs occupied by each CCE in the first control resource set; the number of symbols or RBs covered by the first control resource set; the number of CCEs included in the PDCCH; and the identification ID of the terminal device.

[0218] Optionally, PDCCH includes N CCE CCE, N CCEis a positive integer. The starting position of the PDCCH in the first control resource set is determined by the index of the starting CCE CCE Index Indicates that CCE Index for:

[0219] CCE Index =UE ID mod N CCE ;

[0220] Among them, UE ID The ID of the terminal device.

[0221] Optionally, the PDCCH is located at a corresponding position PDCCH in the first control resource set. symbol,position for:

[0222] PDCCH symbol,position =S0+(UE ID mod M);

[0223] Wherein, S0 is the starting symbol position of the first control resource set, M is the number of symbols covered by the first control resource set, and M is a positive integer.

[0224] Optionally, the frequency domain position of the PDCCH in the first control resource set is PDCCH frequency,position for:

[0225] PDCCH frequency,position =(CCE Index ×CCE Size )mod N RB ;

[0226] Among them, CCE Size The number of RBs occupied by each CCE, CCE Size is a positive integer, N RB is the number of RBs covered by the first control resource set, N RB Is a positive integer.

[0227] Optionally, the first SIB includes SIB1, and the terminal device is in an idle state or an inactive state.

[0228] Fig.10 Shown is a schematic diagram of the structure of a communication device according to an embodiment of the present application. Fig.10 The dotted line in the figure indicates that the unit or module is optional. The device 1000 can be used to implement the method described in the above method embodiment. The device 1000 can be a chip, a terminal device or a network device.

[0229] The device 1000 may include one or more processors 1010. The processor 1010 may support the device 1000 to implement the method described in the method embodiment above. The processor 1010 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0230] The apparatus 1000 may further include one or more memories 1020. The memory 1020 stores a program, which can be executed by the processor 1010, so that the processor 1010 executes the method described in the above method embodiment. The memory 1020 may be independent of the processor 1010 or integrated in the processor 1010.

[0231] The apparatus 1000 may further include a transceiver 1030. The processor 1010 may communicate with other devices or chips through the transceiver 1030. For example, the processor 1010 may transmit and receive data with other devices or chips through the transceiver 1030.

[0232] The present application also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to a terminal device or a network device provided in the present application, and the program enables a computer to execute the method performed by the terminal device or the network device in each embodiment of the present application.

[0233] The computer-readable storage medium may be any available medium that can be read by a computer or a data storage device such as a server or a data center that includes one or more available media. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital video disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)).

[0234] The embodiment of the present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to the terminal device or network device provided in the embodiment of the present application, and the program enables the computer to execute the method performed by the terminal device or network device in each embodiment of the present application.

[0235] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.

[0236] The embodiment of the present application also provides a computer program. The computer program can be applied to the terminal device or network device provided in the embodiment of the present application, and the computer program enables a computer to execute the method executed by the terminal or network device in each embodiment of the present application.

[0237] The terms "system" and "network" in this application can be used interchangeably. In addition, the terms used in this application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application. The terms "first", "second", "third" and "fourth" in the specification and claims of this application and the accompanying drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions.

[0238] In the embodiments of the present application, the "indication" mentioned can be a direct indication, an indirect indication, or an indication of an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association relationship between A and B.

[0239] In the embodiments of the present application, the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship of indication and being indicated, configuration and being configured, etc.

[0240] In the embodiments of the present application, "pre-definition" or "pre-configuration" can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a terminal device and a network device), and the present application does not limit the specific implementation method. For example, pre-definition can refer to what is defined in the protocol.

[0241] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communication field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.

[0242] In the embodiments of the present application, determining B based on A does not mean determining B only based on A. B can also be determined based on A and / or other information.

[0243] In the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0244] In the embodiments of the present application, the sequence numbers of the above processes do not mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0245] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0246] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0247] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0248] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for wireless communication, characterized in that: include: The terminal device determines configuration information of the first resource; The terminal device sends a first request on the first resource; The configuration information of the first resource is carried in a master information block, and the first request is used to request a first system information block SIB.

2. The method according to claim 1, characterized in that The first request includes an uplink wake-up signal WUS, and the configuration information of the first resource is indicated by pdcch-ConfigWUS in the main information block.

3. The method according to claim 1 or 2, characterized in that: The terminal device determines configuration information of the first resource, including: The terminal device detects configuration information of the first resource in a first search space; The first search space is a public search space or a specific search space corresponding to the terminal device.

4. The method according to claim 3, characterized in that The search space corresponding to the first SIB is a second search space, and the method further includes: After sending the first request, the terminal device detects the first SIB on the second search space.

5. The method according to claim 4, characterized in that The search space type corresponding to the first search space is the same as the search space type corresponding to the second search space.

6. The method according to claim 4, characterized in that The first search space belongs to a first type of search space, the second search space belongs to a second type of search space, the first type is different from the second type, and the first type of search space is a dedicated search space related to the first request.

7. The method according to any one of claims 1 to 6, characterized in that The first SIB is sent through at least one time-frequency resource among multiple time-frequency resources, and the method further includes: The terminal device determines the at least one time-frequency resource according to the index of the received synchronization signal block; The terminal device receives the first SIB on the at least one time-frequency resource.

8. The method according to claim 7, characterized in that The multiple time-frequency resources correspond one-to-one to the multiple synchronization signal blocks, or any time-frequency resource among the multiple time-frequency resources corresponds to multiple synchronization signal blocks.

9. The method according to any one of claims 1 to 8, characterized in that The first SIB is in a specific search space corresponding to the terminal device, and the specific search space is determined by parameters in the radio resource control RRC.

10. The method according to any one of claims 1 to 9, characterized in that The method further comprises: The terminal device detects a physical downlink control channel PDCCH in the first search space or the second search space; The PDCCH is used to indicate configuration information of the first resource or the first SIB.

11. The method according to claim 10, characterized in that The PDCCH corresponds to a first control resource set, and a position of the PDCCH in the first control resource set is related to one or more of the following information: a starting symbol position of the first control resource set; The number of resource blocks (RBs) occupied by each control channel element (CCE) in the first control resource set; The number of symbols or RBs covered by the first control resource set; The number of CCEs included in the PDCCH; The identification ID of the terminal device.

12. The method according to claim 11, characterized in that The PDCCH includes N CCE CCE, N CCE is a positive integer, and the starting position of the PDCCH in the first control resource set is determined by the index CCE of the starting CCE Index Indicates that CCE Index for: CCC Index =UE ID mod N CCE ; Among them, UE ID is the ID of the terminal device.

13. The method according to claim 11, characterized in that The PDCCH is located in the first control resource set. symbol,position for: PDCCH symbol,position =S0+(UE ID mod M); Among them, S0 is the starting symbol position of the first control resource set, M is the number of symbols covered by the first control resource set, and M is a positive integer.

14. The method according to claim 11, characterized in that The frequency domain position of the PDCCH in the first control resource set is PDCCH frequency,position for: PDCCH frequency,position =(CCE Index ×CCE Size )mod N RB ; Among them, CCE Size The number of RBs occupied by each CCE, CCE Size is a positive integer, N RB is the number of RBs covered by the first control resource set, N RB Is a positive integer.

15. The method according to any one of claims 1 to 14, characterized in that The first SIB includes SIB1, and the terminal device is in an idle state or an inactive state.

16. A method for wireless communication, characterized in that: include: The network device sends configuration information of the first resource; The network device receives, on the first resource, a first request sent by a terminal device; The configuration information of the first resource is carried in a master information block, and the first request is used to request a first system information block SIB.

17. The method according to claim 16, characterized in that The first request includes an uplink wake-up signal WUS, and the configuration information of the first resource is indicated by pdcch-ConfigWUS in the main information block.

18. The method according to claim 16 or 17, characterized in that The configuration information of the first resource is sent through a first search space, where the first search space is a public search space or a specific search space corresponding to the terminal device.

19. The method according to claim 18, characterized in that The search space corresponding to the first SIB is a second search space, and the method further includes: After receiving the first request, the network device sends the first SIB on the second search space.

20. The method according to claim 19, characterized in that The search space type corresponding to the first search space is the same as the search space type corresponding to the second search space.

21. The method according to claim 19, characterized in that The first search space belongs to a first type of search space, the second search space belongs to a second type of search space, the first type is different from the second type, and the first type of search space is a dedicated search space related to the first request.

22. The method according to any one of claims 16 to 21, characterized in that The first SIB is sent through at least one time-frequency resource among multiple time-frequency resources, and the method further includes: The network device determines the at least one time-frequency resource according to the index of the synchronization signal block received by the terminal device; The network device sends the first SIB on the at least one time-frequency resource.

23. The method according to claim 22, characterized in that The multiple time-frequency resources correspond one-to-one to the multiple synchronization signal blocks, or any time-frequency resource among the multiple time-frequency resources corresponds to multiple synchronization signal blocks.

24. The method according to any one of claims 16 to 23, characterized in that The first SIB is in a specific search space corresponding to the terminal device, and the specific search space is determined by parameters in the radio resource control RRC.

25. The method according to any one of claims 16 to 24, characterized in that The method further comprises: The network device sends a physical downlink control channel PDCCH in the first search space or the second search space; The PDCCH is used to indicate configuration information of the first resource or the first SIB.

26. The method according to claim 25, characterized in that The PDCCH corresponds to a first control resource set, and a position of the PDCCH in the first control resource set is related to one or more of the following information: a starting symbol position of the first control resource set; The number of resource blocks (RBs) occupied by each control channel element (CCE) in the first control resource set; The number of symbols or RBs covered by the first control resource set; The number of CCEs included in the PDCCH; The identification ID of the terminal device.

27. The method according to claim 26, characterized in that The PDCCH includes N CCE CCE, N CCE is a positive integer, and the starting position of the PDCCH in the first control resource set is determined by the index CCE of the starting CCE Index Indicates that CCE Index for: CCC Index =UE ID mod N CCE ; Among them, UE ID is the ID of the terminal device.

28. The method according to claim 26, characterized in that The PDCCH is located in the first control resource set. symbol,position for: PDCCH symbol,position =S0+(UE ID mod M); Among them, S0 is the starting symbol position of the first control resource set, M is the number of symbols covered by the first control resource set, and M is a positive integer.

29. The method according to claim 26, characterized in that The frequency domain position of the PDCCH in the first control resource set is PDCCH frequency,position for: PDCCH frequency,position =(CCE Index ×CCE Size )mod N RB ; Among them, CCE Size The number of RBs occupied by each CCE, CCE Size is a positive integer, N RB is the number of RBs covered by the first control resource set, N RB Is a positive integer.

30. The method according to any one of claims 16 to 29, characterized in that The first SIB includes SIB1, and the terminal device is in an idle state or an inactive state.

31. A device for wireless communication, characterized in that: The device is a terminal device, and the device includes: A determining unit, configured to determine configuration information of a first resource; A sending unit, configured to send a first request on the first resource; The configuration information of the first resource is carried in a master information block, and the first request is used to request a first system information block SIB.

32. The device according to claim 31, characterized in that The first request includes an uplink wake-up signal WUS, and the configuration information of the first resource is indicated by pdcch-ConfigWUS in the main information block.

33. The device according to claim 31 or 32, characterized in that The determination unit is further used to detect configuration information of the first resource in a first search space; wherein the first search space is a public search space or a specific search space corresponding to the terminal device.

34. The device according to claim 33, characterized in that The search space corresponding to the first SIB is a second search space, and the device further includes: The first detection unit is configured to detect the first SIB in the second search space after sending the first request.

35. The device according to claim 34, characterized in that The search space type corresponding to the first search space is the same as the search space type corresponding to the second search space.

36. The device according to claim 34, characterized in that The first search space belongs to a first type of search space, the second search space belongs to a second type of search space, the first type is different from the second type, and the first type of search space is a dedicated search space related to the first request.

37. The device according to any one of claims 31 to 36, characterized in that The first SIB is sent through at least one time-frequency resource among multiple time-frequency resources, and the determination unit is further used to determine the at least one time-frequency resource according to the index of the received synchronization signal block; the device also includes: A receiving unit is used to receive the first SIB on the at least one time-frequency resource.

38. The device according to claim 37, characterized in that The multiple time-frequency resources correspond one-to-one to the multiple synchronization signal blocks, or any time-frequency resource among the multiple time-frequency resources corresponds to multiple synchronization signal blocks.

39. The device according to any one of claims 31 to 38, characterized in that The first SIB is in a specific search space corresponding to the terminal device, and the specific search space is determined by parameters in the radio resource control RRC.

40. The device according to any one of claims 31 to 39, characterized in that The device also includes: A second detection unit, configured to detect a physical downlink control channel PDCCH in the first search space or the second search space; The PDCCH is used to indicate configuration information of the first resource or the first SIB.

41. The device according to claim 40, characterized in that The PDCCH corresponds to a first control resource set, and a position of the PDCCH in the first control resource set is related to one or more of the following information: a starting symbol position of the first control resource set; The number of resource blocks (RBs) occupied by each control channel element (CCE) in the first control resource set; The number of symbols or RBs covered by the first control resource set; The number of CCEs included in the PDCCH; The identification ID of the terminal device.

42. The device according to claim 41, characterized in that The PDCCH includes N CCE CCE, N CCE is a positive integer, and the starting position of the PDCCH in the first control resource set is determined by the index CCE of the starting CCE Index Indicates that CCE Index for: CCC Index =UE ID mod N CCE ; Among them, UE ID is the ID of the terminal device.

43. The device according to claim 41, characterized in that The PDCCH is located in the first control resource set. symbol,position for: PDCCH symbol,position =S0+(UE ID mod M); Among them, S0 is the starting symbol position of the first control resource set, M is the number of symbols covered by the first control resource set, and M is a positive integer.

44. The device according to claim 41, characterized in that The frequency domain position of the PDCCH in the first control resource set is PDCCH frequency,position for: PDCCH frequency,position =(CCE Index ×CCE Size )mod N RB ; Among them, CCE Size The number of RBs occupied by each CCE, CCE Size is a positive integer, N RB is the number of RBs covered by the first control resource set, N RB Is a positive integer.

45. The device according to any one of claims 31 to 44, characterized in that The first SIB includes SIB1, and the terminal device is in an idle state or an inactive state.

46. ​​An apparatus for wireless communication, characterized in that: The device is a network device, and the device includes: A sending unit, configured to send configuration information of a first resource; A receiving unit, configured to receive a first request sent by a terminal device on the first resource; The configuration information of the first resource is carried in a master information block, and the first request is used to request a first system information block SIB.

47. The device according to claim 46, characterized in that The first request includes an uplink wake-up signal WUS, and the configuration information of the first resource is indicated by pdcch-ConfigWUS in the main information block.

48. The device according to claim 46 or 47, characterized in that The configuration information of the first resource is sent through a first search space, where the first search space is a public search space or a specific search space corresponding to the terminal device.

49. The device according to claim 48, characterized in that The search space corresponding to the first SIB is a second search space, and the sending unit is further configured to send the first SIB on the second search space after receiving the first request.

50. The device according to claim 49, characterized in that The search space type corresponding to the first search space is the same as the search space type corresponding to the second search space.

51. The device according to claim 49, characterized in that The first search space belongs to a first type of search space, the second search space belongs to a second type of search space, the first type is different from the second type, and the first type of search space is a dedicated search space related to the first request.

52. The device according to any one of claims 46 to 51, characterized in that The first SIB is sent through at least one time-frequency resource among multiple time-frequency resources, and the device further includes: A determination unit, configured to determine the at least one time-frequency resource according to an index of a synchronization signal block received by the terminal device; The sending unit is further configured to send the first SIB on the at least one time-frequency resource.

53. The device according to claim 52, characterized in that The multiple time-frequency resources correspond one-to-one to the multiple synchronization signal blocks, or any time-frequency resource among the multiple time-frequency resources corresponds to multiple synchronization signal blocks.

54. The device according to any one of claims 46 to 53, characterized in that The first SIB is in a specific search space corresponding to the terminal device, and the specific search space is determined by parameters in the radio resource control RRC.

55. The device according to any one of claims 46 to 54, characterized in that The sending unit is further used to send a physical downlink control channel PDCCH in the first search space or the second search space; wherein the PDCCH is used to indicate configuration information of the first resource or the first SIB.

56. The device according to claim 55, characterized in that The PDCCH corresponds to a first control resource set, and a position of the PDCCH in the first control resource set is related to one or more of the following information: a starting symbol position of the first control resource set; The number of resource blocks (RBs) occupied by each control channel element (CCE) in the first control resource set; The number of symbols or RBs covered by the first control resource set; The number of CCEs included in the PDCCH; The identification ID of the terminal device.

57. The device according to claim 56, characterized in that The PDCCH includes N CCE CCE, N CCE is a positive integer, and the starting position of the PDCCH in the first control resource set is determined by the index CCE of the starting CCE Index Indicates that CCE Index for: CCC Index =UE ID mod N CCE ; Among them, UE ID is the ID of the terminal device.

58. The device according to claim 56, characterized in that The PDCCH is located in the first control resource set. symbol,position for: PDCCH symbol,position =S0+(UE ID mod M); Among them, S0 is the starting symbol position of the first control resource set, M is the number of symbols covered by the first control resource set, and M is a positive integer.

59. The device according to claim 56, characterized in that The frequency domain position of the PDCCH in the first control resource set is PDCCH frequency,position for: PDCCH frequency,position =(CCE Index ×CCE Size )mod N RB ; Among them, CCE Size The number of RBs occupied by each CCE, CCE Size is a positive integer, N RB is the number of RBs covered by the first control resource set, N RB Is a positive integer.

60. The device according to any one of claims 46 to 59, characterized in that The first SIB includes SIB1, and the terminal device is in an idle state or an inactive state.

61. A communication device, characterized in that: The invention comprises a memory and a processor, wherein the memory is used to store a program, and the processor is used to call the program in the memory to execute the method according to any one of claims 1 to 30.

62. A device, characterized in that The invention comprises a processor, which is used to call a program from a memory to execute the method according to any one of claims 1 to 30.

63. A chip, characterized in that: The device comprises a processor, which is used to call a program from a memory so that a device equipped with the chip executes a method as claimed in any one of claims 1 to 30.

64. A computer-readable storage medium, characterized in that A program is stored thereon, and the program enables a computer to execute the method according to any one of claims 1 to 30.

65. A computer program product, characterized in that The method comprises a program which causes a computer to execute the method according to any one of claims 1 to 30.

66. A computer program, characterized in that The computer program enables a computer to execute the method according to any one of claims 1 to 30.

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