Method and device for determining initial bandwidth part BWP and storage medium

Abstract

A method and apparatus for determining an initial bandwidth portion (BWP), the method comprising: determining a frequency resource of a first initial BWP, the frequency resource of the first initial BWP being included in a frequency resource of a second initial BWP, the frequency resource of the first initial BWP corresponding to a first type terminal device, the frequency resource of the second initial BWP corresponding to a second type terminal device, and the frequency resource of the first initial BWP being included in a frequency resource of the second initial BWP; the two types of terminal devices have different capabilities. According to the scheme provided by the embodiment of the invention, a new method for determining the BWP is provided, so that the required system bandwidth is saved while the system supports different types of terminal equipment.

Description

[0001] This application is a divisional application. The application number of the original application is 202080088966.9, and the original application date is January 22, 2020. The entire contents of the original application are incorporated into this application by reference. Technical Field

[0002] The present application relates to the field of communications, and in particular to a method, device and storage medium for determining an initial bandwidth part BWP. Background Art

[0003] The new radio (NR) system is the fifth-generation (5G) mobile communication technology standard based on a new air interface design of orthogonal frequency division multiplexing (OFDM), and is also a very important foundation for the next generation of cellular mobile technology. The NR system services are very diverse, including enhanced mobile broadband (eMBB) services, ultra-reliability low-latency communication (URLLC) services, and massive machine-type communication (mMTC) services.

[0004] The diversification of NR system services requires that the NR system design can meet the access requirements of terminal devices with different bandwidth capabilities. For example, terminal devices that transmit eMBB services and terminal devices that transmit URLLC services can access the NR system by determining the broadband information of the NR system, while some terminal devices that transmit mMTC services generally do not design a large working bandwidth for data transmission due to considerations such as design cost and low power consumption, so they are generally only accessed through low bandwidth.

[0005] The NR system bandwidth is relatively large, at least 100MHz. However, due to different bandwidth capabilities, the maximum bandwidth supported by terminal devices is also different. Some terminal devices may only support 80MHz, 40MHz or 20MHz, or even smaller bandwidths. Therefore, in general, in order to meet the requirements of the maximum bandwidth supported by terminal devices, the concept of downlink initial bandwidth part (BWP) is introduced in NR. Summary of the invention

[0006] The present application provides a method, device and storage medium for a downlink initial bandwidth part BWP, and provides a new design scheme for the initial BWP, which can distinguish and configure the initial bandwidth parts of different types of terminal devices, thereby improving the initial access performance of different types of terminal devices.

[0007] The first aspect of the present application provides a method for determining an initial bandwidth part BWP, which can be used in a wireless communication system, including a 4.5G or 5G wireless communication system, a further evolved system based on NR, and a future wireless communication system.

[0008] The method may include: determining a frequency resource of a first initial BWP corresponding to a first type of terminal device, the frequency resource of the first initial BWP being included in a frequency resource of a second initial BWP corresponding to a second type of terminal device, the first type of terminal device and the second type of terminal device having different capabilities, and transmitting signaling and / or data with a network device according to the frequency resource of the first initial BWP.

[0009] The present application involves two types of terminal devices, which can also be referred to as terminals, user equipment (UE), mobile stations (MS), mobile terminals (MT), etc. The terminal devices in the embodiments of the present application can be mobile phones, tablet computers (Pad), computers with wireless transceiver functions, and can also be wireless terminals used in scenarios such as virtual reality (VR), augmented reality (AR), industrial control, self driving, remote medical, smart grid, transportation safety, smart city, and smart home. In the present application, the aforementioned terminal devices and chips that can be applied to the aforementioned terminal devices are collectively referred to as terminal devices. It should be understood that the embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal devices.

[0010] As can be seen from the first aspect, the first aspect provides a new method for determining the initial bandwidth part BWP, which is simple in design, inherits the original design intention of the existing second initial BWP, and reduces the complexity of standard design.

[0011] Optionally, in combination with the first aspect above, in a first possible implementation method, the capabilities of the first type of terminal device and the second type of terminal device are different, which may include at least one of the following: the bandwidth capabilities of the first type of terminal device and the second type of terminal device are different. The number of transmitting and receiving antennas of the first type of terminal device and the second type of terminal device are different. The maximum uplink transmit power of the first type of terminal device and the second type of terminal device is different. The two types of terminal devices correspond to different protocol versions. For example, an NR terminal device corresponding to Release 15 and an NR terminal device corresponding to Release 17 can be considered as two types of terminal devices. The two types of terminal devices support different carrier aggregation capabilities. The two types of terminal devices have different data processing time capabilities.

[0012] Optionally, in combination with the above-mentioned first aspect or the first possible implementation of the first aspect, in a second possible implementation, the frequency resources of the first initial BWP are determined based on a first frequency offset, the first frequency offset belongs to a first set, and the first set is a set of second frequency offsets. Among them, the first frequency offset is the offset of the frequency resources of the first initial BWP relative to the frequency resources of the synchronization signal block SSB, and the second frequency offset is the offset of the frequency resources of the second initial BWP relative to the frequency resources of the SSB. It can be seen from the second possible implementation of the first aspect that the nested relationship between the frequency resources of the first initial BWP and the frequency resources of the second initial BWP can be achieved, saving the system bandwidth required by the system to support diversified terminal devices.

[0013] Optionally, in combination with the second possible implementation of the first aspect, in a third possible implementation, the first frequency offset is determined based on first configuration information from the network device, and the first configuration information is used to configure the frequency resources of the second initial BWP. From the third possible implementation of the first aspect, it can be seen that the network device no longer needs to send additional indication information to the second type of terminal device for determining the frequency resources of the first initial BWP, which can save the overhead of the network device sending control information and achieve energy saving of the network device.

[0014] Optionally, in combination with the second possible implementation of the first aspect or the third possible implementation of the first aspect, in a fourth possible implementation, the first frequency offset is the same as the second frequency offset.

[0015] Optionally, in combination with the third possible implementation of the first aspect above, in a fifth possible implementation, the first frequency offset is determined based on first configuration information from a network device, which may include: the first type of terminal device determines a first index value based on the first configuration information. The first type of terminal device determines M index values, where M is a positive integer, and the M index values ​​and the first index value are used to indicate the frequency offsets that can be included in the first set, and the M index values ​​are less than or equal to the index value of the first index value. The first type of terminal device determines the first frequency offset based on the frequency offset indicated by any one of the M index values. It can be seen from the fifth possible implementation of the first aspect that a specific method for determining the first frequency offset is given, which increases the diversity of the scheme.

[0016] Optionally, in combination with the third possible implementation of the first aspect above, in a sixth possible implementation, the first frequency offset is determined based on first configuration information from a network device, which may include: the first type of terminal device determines a first index value based on the first configuration information. The first type of terminal device determines a second index value, where the second index value is the value of the first index value modulo a preset value, and the first index value and the second index value indicate the frequency offsets that can be included in the first set. The first type of terminal device determines the first frequency offset based on the second index value. It can be seen from the sixth possible implementation of the first aspect that a specific method for determining the first frequency offset is given, which increases the diversity of the scheme.

[0017] Optionally, in combination with the second possible implementation of the first aspect, in the seventh possible implementation, the first frequency offset is determined according to the first number of time-frequency resources, the first number of time-frequency resources and the second number of time-frequency resources correspond to the frequency offset that can be included in the first set, the first number of time-frequency resources is the number of time-frequency resources closest to the second number of time-frequency resources, and the second number of time-frequency resources is the number of time-frequency resources corresponding to CORESET0 of the second type of terminal device. It can be seen from the seventh possible implementation of the first aspect that a specific method for determining the first frequency offset is given, which increases the diversity of the scheme.

[0018] Optionally, in combination with the above-mentioned first aspect or the first to the seventh possible implementations of the first aspect, in an eighth possible implementation, the method may further include: determining the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device, the radio frame where the first time resources are located cannot include the time resources for the transmission of the synchronization signal block SSB, or the time slot where the first time resources are located cannot include the time resources of the second CORESET0 corresponding to the second type of terminal device. It can be seen from the eighth possible implementation of the first aspect that when the system starts to support the service transmission of the first type of terminal device, the service transmission of the second type of terminal device that may have been deployed in the system will not be affected by the introduction of the first type of terminal device, especially when the public information transmission corresponding to the second type of terminal device and the SSB transmission are in the same time slot or the same radio frame, this implementation method can avoid the impact on the initial access of the second type of terminal device.

[0019] Optionally, in combination with the eighth possible implementation of the first aspect, in a ninth possible implementation, the method may further include: first time resources corresponding to the same SSB are distributed in two consecutive time slots in a radio frame. From the ninth possible implementation of the first aspect, it can be seen that the joint channel estimation performance between the control information of the scheduling common information transmission transmitted in multiple first time resources can be guaranteed, which facilitates the terminal device to achieve combined detection performance.

[0020] Optionally, in combination with the first aspect or the first to the seventh possible implementations of the first aspect, in a tenth possible implementation, a time resource of a first control resource set 0CORESET0 corresponding to a first type of terminal device is determined, and the first time resource may be included in the second time resource. It can be seen from the tenth possible implementation of the first aspect that a specific design method for the first time resource is given, which increases the diversity of the solution.

[0021] Optionally, in combination with the first aspect or the first aspect to the seventh possible implementation manner of the first aspect, in an eleventh possible implementation manner, a time resource of a first control resource set 0CORESET0 corresponding to a first type of terminal device is determined, and the first time resource may be included in the time resource of a synchronization signal block SSB. It can be seen from the eleventh possible implementation manner of the first aspect that a specific design method for the first time resource is given, which increases the diversity of the solution.

[0022] Optionally, in combination with the eighth to tenth possible implementations of the first aspect, in a twelfth possible implementation, the first time resource is determined based on second configuration information from the network device, and the second configuration information is used to configure the second time resource. It can be seen from the twelfth possible implementation of the first aspect that the network device no longer needs to send additional indication information to the second type of terminal device for determining the first time resource, which can save the overhead of the network device sending control information and achieve energy saving of the network device.

[0023] The second aspect of the present application provides a method for a downlink initial bandwidth portion BWP, which may include: a first type of terminal device determines the frequency resources of the initial BWP corresponding to the first type of terminal device, there is no overlap between the frequency resources of the first initial BWP and the frequency resources of the second initial BWP, and the capabilities of the first type of terminal device and the second type of terminal device are different. From the second aspect, it can be seen that since there is no overlap between the frequency resources of the first initial BWP and the frequency resources of the second initial BWP, the impact on the data transmission of the second type of terminal device can be reduced. For systems with relatively large system bandwidth, through this implementation method, it is possible to support diversified data services (for example, simultaneously support eMBB services and mMTC services) without affecting the impact on the already deployed eMBB services.

[0024] Optionally, in combination with the above-mentioned second aspect, in a first possible implementation manner, the capabilities of the first type of terminal device and the second type of terminal device are different, which may include at least one of the following: the bandwidth capabilities of the first type of terminal device and the second type of terminal device are different. The number of transceiver antennas of the first type of terminal device and the second type of terminal device are different. The maximum uplink transmission power of the first type of terminal device and the second type of terminal device is different.

[0025] Optionally, in combination with the above-mentioned second aspect or the first possible implementation method of the second aspect, in the second possible implementation method, the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device are determined, and the wireless frame where the first time resources are located cannot include the time resources for the transmission of the synchronization signal block SSB, or the time slot where the first time resources are located cannot include the time resources of the second CORESET0 corresponding to the second type of terminal device.

[0026] Optionally, in combination with the second possible implementation manner of the second aspect above, in a third possible implementation manner, the method may further include: the first time resources corresponding to the same SSB are distributed in two consecutive time slots in a wireless frame.

[0027] Optionally, in combination with the above-mentioned second aspect or the first possible implementation method of the second aspect, in a fourth possible implementation method, the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device are determined, and the first time resources may be included in the second time resources.

[0028] Optionally, in combination with the above-mentioned second aspect or the first possible implementation method of the second aspect, in a fifth possible implementation method, the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device are determined, and the first time resources may be included in the time resources of the synchronization signal block SSB.

[0029] Optionally, in combination with the second to fourth possible implementations of the second aspect above, in a sixth possible implementation, the first time resource is determined based on second configuration information from the network device, and the second configuration information is used to configure the second time resource.

[0030] The third aspect of the present application provides a method for a downlink initial bandwidth part BWP, which may include: a first type of terminal device determines a frequency resource of an initial BWP corresponding to the first type of terminal device, the frequency resource of the first initial BWP does not overlap with the frequency resource of a synchronization signal block SSB, and the capabilities of the first type of terminal device and the second type of terminal device are different. It can be seen from the third aspect that the system frequency resources can be effectively utilized to achieve a nested relationship between the frequency resources of the first initial BWP and the frequency resources of the second initial BWP, which is particularly suitable for systems with a small system bandwidth but that need to serve diversified services.

[0031] Optionally, in combination with the third aspect, in a first possible implementation, the capabilities of the first type of terminal device and the second type of terminal device are different, which may include at least one of the following: the bandwidth capabilities of the first type of terminal device and the second type of terminal device are different. The number of transceiver antennas of the first type of terminal device and the second type of terminal device are different. The maximum uplink transmission power of the first type of terminal device and the second type of terminal device is different.

[0032] Optionally, in combination with the above-mentioned third aspect or the first possible implementation method of the third aspect, in a second possible implementation method, the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device are determined, and the wireless frame where the first time resources are located cannot include the time resources for the transmission of the synchronization signal block SSB, or the time slot where the first time resources are located cannot include the time resources of the second CORESET0 corresponding to the second type of terminal device.

[0033] Optionally, in combination with the second possible implementation manner of the third aspect above, in a third possible implementation manner, the method may further include: the first time resources corresponding to the same SSB are distributed in two consecutive time slots in a wireless frame.

[0034] Optionally, in combination with the above-mentioned third aspect or the first possible implementation method of the third aspect, in a fourth possible implementation method, the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device are determined, and the first time resources may be included in the second time resources.

[0035] Optionally, in combination with the above-mentioned third aspect or the first possible implementation method of the third aspect, in a fifth possible implementation method, the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device are determined, and the first time resources may be included in the time resources of the synchronization signal block SSB.

[0036] Optionally, in combination with the second possible implementation of the third aspect to the fourth possible implementation of the third aspect, in a sixth possible implementation, the first time resource is determined based on second configuration information from the network device, and the second configuration information is used to configure the second time resource.

[0037] In a fourth aspect, the present application provides an apparatus for determining a downlink initial bandwidth part BWP, which may include: a processing unit, configured to determine a frequency resource of a first initial BWP corresponding to a first type of terminal device, the frequency resource of the first initial BWP may be included in a frequency resource of a second initial BWP corresponding to a second type of terminal device, and the capabilities of the first type of terminal device and the second type of terminal device are different. A communication unit, configured to transmit signaling and / or data with a network device according to the frequency resource of the first initial BWP.

[0038] Optionally, in combination with the fourth aspect, in a first possible implementation, the capabilities of the first type of terminal device and the second type of terminal device are different, which may include at least one of the following: the bandwidth capabilities of the first type of terminal device and the second type of terminal device are different. The number of transceiver antennas of the first type of terminal device and the second type of terminal device are different. The maximum uplink transmission power of the first type of terminal device and the second type of terminal device is different.

[0039] Optionally, in combination with the fourth aspect or the first possible implementation of the fourth aspect, in a second possible implementation, the frequency resource of the first initial BWP is determined according to the first frequency offset, the first frequency offset belongs to a first set, and the first set is a set of second frequency offsets. The first frequency offset is the offset of the frequency resource of the first initial BWP relative to the frequency resource of the synchronization signal block SSB, and the second frequency offset is the offset of the frequency resource of the second initial BWP relative to the frequency resource of the SSB.

[0040] Optionally, in combination with the second possible implementation of the fourth aspect above, in a third possible implementation, the first frequency offset is determined based on first configuration information from a network device, and the first configuration information is used to configure frequency resources of a second initial BWP.

[0041] Optionally, in combination with the second possible implementation of the fourth aspect or the third possible implementation of the fourth aspect, in a fourth possible implementation, the first frequency offset is the same as the second frequency offset.

[0042] Optionally, in combination with the third possible implementation of the fourth aspect, in a fifth possible implementation, the processing unit is specifically used to: determine the first index value according to the first configuration information. Determine M index values, where M is a positive integer, and the M index values ​​and the first index value are used to indicate the frequency offsets that can be included in the first set, and the M index values ​​are less than or equal to the index value of the first index value. Determine the first frequency offset according to the frequency offset indicated by any one of the M index values.

[0043] Optionally, in combination with the third possible implementation of the fourth aspect, in a sixth possible implementation, the processing unit is specifically configured to: determine a first index value according to the first configuration information; determine a second index value, where the second index value is a value obtained by taking a modulus of a preset value from the first index value, and the first index value and the second index value indicate a frequency offset that can be included in the first set; and determine a first frequency offset according to the second index value.

[0044] Optionally, in combination with the second possible implementation method of the fourth aspect above, in a seventh possible implementation method, the first frequency offset is determined based on the first number of time-frequency resources, the first number of time-frequency resources and the second number of time-frequency resources correspond to the frequency offsets that can be included in the first set, the first number of time-frequency resources is the number of time-frequency resources closest to the second number of time-frequency resources, and the second number of time-frequency resources is the number of time-frequency resources corresponding to CORESET0 of the second type of terminal device.

[0045] Optionally, in combination with the above-mentioned fourth aspect or the first to the seventh possible implementation methods of the fourth aspect, in an eighth possible implementation method, the processing unit is further used to: determine the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device, the wireless frame where the first time resources are located cannot include the time resources for the transmission of the synchronization signal block SSB, or the time slot where the first time resources are located cannot include the time resources of the second CORESET0 corresponding to the second type of terminal device.

[0046] Optionally, in combination with the eighth possible implementation method of the fourth aspect above, in a ninth possible implementation method, the first time resources corresponding to the same SSB are distributed in two consecutive time slots in a wireless frame.

[0047] Optionally, in combination with the above-mentioned fourth aspect or the first to seventh possible implementations of the fourth aspect, in a tenth possible implementation, the processing unit is further used to: determine the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device, and the first time resources can be included in the second time resources.

[0048] Optionally, in combination with the above-mentioned fourth aspect or the first to the seventh possible implementation methods of the fourth aspect, in an eleventh possible implementation method, the processing unit is further used to: determine the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device, and the first time resources can be included in the time resources of the synchronization signal block SSB.

[0049] Optionally, in combination with the eighth to tenth possible implementations of the fourth aspect above, in a twelfth possible implementation, the first time resource is determined based on second configuration information from the network device, and the second configuration information is used to configure the second time resource.

[0050] In a fifth aspect, the present application provides an apparatus for determining a downlink initial bandwidth part BWP, which may include: a processing unit, configured to determine a frequency resource of an initial BWP corresponding to a first type of terminal device, wherein the frequency resource of the first initial BWP does not overlap with the frequency resource of a second initial BWP, and the capabilities of the first type of terminal device and the second type of terminal device are different. A communication unit, configured to transmit signaling and / or data with a network device according to the frequency resource of the first initial BWP.

[0051] Optionally, in combination with the fifth aspect, in a first possible implementation, the capabilities of the first type of terminal device and the second type of terminal device are different, which may include at least one of the following: the bandwidth capabilities of the first type of terminal device and the second type of terminal device are different. The number of transceiver antennas of the first type of terminal device and the second type of terminal device are different. The maximum uplink transmission power of the first type of terminal device and the second type of terminal device is different.

[0052] Optionally, in combination with the above-mentioned fifth aspect or the first possible implementation method of the fifth aspect, in a second possible implementation method, the processing unit is also used to determine the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device, and the wireless frame where the first time resources are located cannot include the time resources for the transmission of the synchronization signal block SSB, or the time slot where the first time resources are located cannot include the time resources of the second CORESET0 corresponding to the second type of terminal device.

[0053] Optionally, in combination with the second possible implementation method of the fifth aspect above, in a third possible implementation method, the first time resources corresponding to the same SSB are distributed in two consecutive time slots in a wireless frame.

[0054] Optionally, in combination with the above-mentioned fifth aspect or the first possible implementation method of the fifth aspect, in a fourth possible implementation method, the processing unit is also used to determine the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device, and the first time resources may be included in the second time resources.

[0055] Optionally, in combination with the above-mentioned fifth aspect or the first possible implementation method of the fifth aspect, in the fifth possible implementation method, the processing unit is also used to determine the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device, and the first time resources can be included in the time resources of the synchronization signal block SSB.

[0056] Optionally, in combination with the second possible implementation of the fifth aspect to the fourth possible implementation of the fifth aspect, in a sixth possible implementation, the first time resource is determined based on second configuration information from the network device, and the second configuration information is used to configure the second time resource.

[0057] In a sixth aspect, the present application provides an apparatus for determining a downlink initial bandwidth part BWP, which may include: a processing unit, configured to determine a frequency resource of an initial BWP corresponding to a first type of terminal device, wherein the frequency resource of the first initial BWP does not overlap with the frequency resource of a synchronization signal block SSB, and the capabilities of the first type of terminal device and the second type of terminal device are different. A communication unit, configured to transmit signaling and / or data with a network device according to the frequency resource of the first initial BWP.

[0058] Optionally, in combination with the sixth aspect, in a first possible implementation, the capabilities of the first type of terminal device and the second type of terminal device are different, which may include at least one of the following: the bandwidth capabilities of the first type of terminal device and the second type of terminal device are different. The number of transceiver antennas of the first type of terminal device and the second type of terminal device are different. The maximum uplink transmission power of the first type of terminal device and the second type of terminal device is different.

[0059] Optionally, in combination with the above-mentioned sixth aspect or the first possible implementation method of the sixth aspect, in a second possible implementation method, the processing unit is also used to determine the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device, and the wireless frame where the first time resources are located cannot include the time resources for the transmission of the synchronization signal block SSB, or the time slot where the first time resources are located cannot include the time resources of the second CORESET0 corresponding to the second type of terminal device.

[0060] Optionally, in combination with the second possible implementation method of the sixth aspect above, in a third possible implementation method, the first time resources corresponding to the same SSB are distributed in two consecutive time slots in a wireless frame.

[0061] Optionally, in combination with the above-mentioned sixth aspect or the first possible implementation method of the sixth aspect, in a fourth possible implementation method, the processing unit is also used to determine the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device, and the first time resources may be included in the second time resources.

[0062] Optionally, in combination with the above-mentioned sixth aspect or the first possible implementation method of the sixth aspect, in a fifth possible implementation method, the processing unit is also used to determine the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device, and the first time resources may be included in the time resources of the synchronization signal block SSB.

[0063] Optionally, in combination with the second to fourth possible implementations of the sixth aspect above, in the sixth possible implementation, the first time resource is determined based on second configuration information from the network device, and the second configuration information is used to configure the second time resource.

[0064] In a seventh aspect, the present application provides an apparatus for determining a downlink initial bandwidth part BWP, which may include: a processor, configured to execute a program stored in the memory, wherein when the program stored in the memory is executed, the processor is configured to determine a frequency resource of a first initial BWP corresponding to a first type of terminal device, wherein the frequency resource of the first initial BWP may be included in a frequency resource of a second initial BWP corresponding to a second type of terminal device, and the capabilities of the first type of terminal device and the second type of terminal device are different. A communication interface, the communication interface is coupled to the processor, and is configured to transmit signaling and / or data with a network device according to the frequency resource of the first initial BWP.

[0065] Optionally, in combination with the seventh aspect, in a first possible implementation, the capabilities of the first type of terminal device and the second type of terminal device are different, which may include at least one of the following: the bandwidth capabilities of the first type of terminal device and the second type of terminal device are different. The number of transceiver antennas of the first type of terminal device and the second type of terminal device are different. The maximum uplink transmission power of the first type of terminal device and the second type of terminal device is different.

[0066] Optionally, in combination with the seventh aspect or the first possible implementation of the seventh aspect, in a second possible implementation, the frequency resource of the first initial BWP is determined based on a first frequency offset, the first frequency offset belongs to a first set, and the first set is a set of second frequency offsets. The first frequency offset is an offset of the frequency resource of the first initial BWP relative to the frequency resource of the synchronization signal block SSB, and the second frequency offset is an offset of the frequency resource of the second initial BWP relative to the frequency resource of the SSB.

[0067] Optionally, in combination with the second possible implementation of the seventh aspect above, in a third possible implementation, the first frequency offset is determined based on first configuration information from a network device, and the first configuration information is used to configure frequency resources of a second initial BWP.

[0068] Optionally, in combination with the second possible implementation of the seventh aspect or the third possible implementation of the seventh aspect, in a fourth possible implementation, the first frequency offset is the same as the second frequency offset.

[0069] Optionally, in combination with the third possible implementation of the seventh aspect, in a fifth possible implementation, the processor is specifically used to: determine a first index value according to the first configuration information. Determine M index values, where M is a positive integer, and the M index values ​​and the first index value are used to indicate frequency offsets that can be included in the first set, and the M index values ​​are less than or equal to the index value of the first index value. Determine the first frequency offset according to the frequency offset indicated by any one of the M index values.

[0070] Optionally, in combination with the third possible implementation of the seventh aspect, in a sixth possible implementation, the processor is specifically configured to: determine a first index value according to the first configuration information. Determine a second index value, where the second index value is a value obtained by taking a modulus of a preset value from the first index value, and the first index value and the second index value indicate a frequency offset that can be included in the first set. Determine the first frequency offset according to the second index value.

[0071] Optionally, in combination with the second possible implementation method of the seventh aspect above, in the seventh possible implementation method, the first frequency offset is determined based on the first number of time-frequency resources, the first number of time-frequency resources and the second number of time-frequency resources correspond to the frequency offsets that can be included in the first set, the first number of time-frequency resources is the number of time-frequency resources closest to the second number of time-frequency resources, and the second number of time-frequency resources is the number of time-frequency resources corresponding to CORESET0 of the second type of terminal device.

[0072] Optionally, in combination with the above-mentioned seventh aspect or the first to seventh possible implementations of the seventh aspect, in an eighth possible implementation, the processor is further used to: determine the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device, the wireless frame where the first time resources are located cannot include the time resources for the transmission of the synchronization signal block SSB, or the time slot where the first time resources are located cannot include the time resources of the second CORESET0 corresponding to the second type of terminal device.

[0073] Optionally, in combination with the eighth possible implementation of the seventh aspect above, in a ninth possible implementation, the first time resources corresponding to the same SSB are distributed in two consecutive time slots in a wireless frame.

[0074] Optionally, in combination with the above-mentioned seventh aspect or the first to seventh possible implementations of the seventh aspect, in a tenth possible implementation, the processor is further used to: determine the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device, and the first time resources can be included in the second time resources.

[0075] Optionally, in combination with the above-mentioned seventh aspect or the first to seventh possible implementations of the seventh aspect, in an eleventh possible implementation, the processor is further used to: determine the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device, and the first time resources may be included in the time resources of the synchronization signal block SSB.

[0076] Optionally, in combination with the eighth to tenth possible implementations of the seventh aspect above, in a twelfth possible implementation, the first time resource is determined based on second configuration information from the network device, and the second configuration information is used to configure the second time resource.

[0077] In an eighth aspect, the present application provides an apparatus for determining a downlink initial bandwidth part BWP, which may include: a processor, configured to execute a program stored in the memory, wherein when the program stored in the memory is executed, the processor is configured to determine a frequency resource of an initial BWP corresponding to a first type of terminal device, wherein the frequency resource of the first initial BWP does not overlap with the frequency resource of the second initial BWP, and the capabilities of the first type of terminal device and the second type of terminal device are different. A communication interface, coupled to the processor, configured to transmit signaling and / or data with a network device according to the frequency resource of the first initial BWP.

[0078] Optionally, in combination with the eighth aspect, in a first possible implementation, the capabilities of the first type of terminal device and the second type of terminal device are different, which may include at least one of the following: the bandwidth capabilities of the first type of terminal device and the second type of terminal device are different. The number of transceiver antennas of the first type of terminal device and the second type of terminal device are different. The maximum uplink transmission power of the first type of terminal device and the second type of terminal device is different.

[0079] Optionally, in combination with the above-mentioned eighth aspect or the first possible implementation method of the eighth aspect, in a second possible implementation method, the processor is also used to determine the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device, and the wireless frame where the first time resources are located cannot include the time resources for the transmission of the synchronization signal block SSB, or the time slot where the first time resources are located cannot include the time resources of the second CORESET0 corresponding to the second type of terminal device.

[0080] Optionally, in combination with the second possible implementation method of the eighth aspect above, in a third possible implementation method, the first time resources corresponding to the same SSB are distributed in two consecutive time slots in a wireless frame.

[0081] Optionally, in combination with the above-mentioned eighth aspect or the first possible implementation method of the eighth aspect, in a fourth possible implementation method, the processor is also used to determine the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device, and the first time resources may be included in the second time resources.

[0082] Optionally, in combination with the above-mentioned eighth aspect or the first possible implementation method of the eighth aspect, in a fifth possible implementation method, the processor is also used to determine the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device, and the first time resources may be included in the time resources of the synchronization signal block SSB.

[0083] Optionally, in combination with the second possible implementation of the eighth aspect to the fourth possible implementation of the eighth aspect, in a sixth possible implementation, the first time resource is determined based on second configuration information from the network device, and the second configuration information is used to configure the second time resource.

[0084] In a ninth aspect, the present application provides an apparatus for determining a downlink initial bandwidth part BWP, which may include: a processor, configured to execute a program stored in the memory, wherein when the program stored in the memory is executed, the processor is configured to determine a frequency resource of an initial BWP corresponding to a first type of terminal device, wherein the frequency resource of the first initial BWP does not overlap with the frequency resource of a synchronization signal block SSB, and the capabilities of the first type of terminal device and the second type of terminal device are different. A communication interface, the communication interface is coupled to the processor, and is configured to transmit signaling and / or data with a network device according to the frequency resource of the first initial BWP.

[0085] Optionally, in combination with the ninth aspect, in a first possible implementation, the capabilities of the first type of terminal device and the second type of terminal device are different, which may include at least one of the following: the bandwidth capabilities of the first type of terminal device and the second type of terminal device are different. The number of transceiver antennas of the first type of terminal device and the second type of terminal device are different. The maximum uplink transmission power of the first type of terminal device and the second type of terminal device is different.

[0086] Optionally, in combination with the above-mentioned ninth aspect or the first possible implementation method of the ninth aspect, in a second possible implementation method, the processor is also used to determine the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device, and the wireless frame where the first time resources are located cannot include the time resources for the transmission of the synchronization signal block SSB, or the time slot where the first time resources are located cannot include the time resources of the second CORESET0 corresponding to the second type of terminal device.

[0087] Optionally, in combination with the second possible implementation method of the ninth aspect above, in a third possible implementation method, the first time resources corresponding to the same SSB are distributed in two consecutive time slots in a wireless frame.

[0088] Optionally, in combination with the above-mentioned ninth aspect or the first possible implementation method of the ninth aspect, in a fourth possible implementation method, the processor is also used to determine the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device, and the first time resources may be included in the second time resources.

[0089] Optionally, in combination with the above-mentioned ninth aspect or the first possible implementation method of the ninth aspect, in a fifth possible implementation method, the processor is also used to determine the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device, and the first time resources may be included in the time resources of the synchronization signal block SSB.

[0090] Optionally, in combination with the second possible implementation of the ninth aspect to the fourth possible implementation of the ninth aspect, in a sixth possible implementation, the first time resource is determined based on second configuration information from the network device, and the second configuration information is used to configure the second time resource.

[0091] The tenth aspect of the present application provides a computer-readable storage medium, which stores instructions. When the computer-readable storage medium is executed on a computer, the computer can execute the method for determining the downlink initial bandwidth part BWP of the first aspect or any possible implementation of the first aspect.

[0092] In an eleventh aspect of the present application, a computer-readable storage medium is provided, in which instructions are stored. When the computer-readable storage medium is executed on a computer, the computer can execute the method for determining the downlink initial bandwidth part BWP of the second aspect or any possible implementation of the second aspect.

[0093] The twelfth aspect of the present application provides a computer-readable storage medium, which stores instructions. When the computer-readable storage medium is executed on a computer, the computer can execute the method for determining the downlink initial bandwidth part BWP of the third aspect or any possible implementation of the third aspect.

[0094] The thirteenth aspect of the present application provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute the method for determining the downlink initial bandwidth part BWP of the first aspect or any possible implementation of the first aspect.

[0095] A fourteenth aspect of the present application provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute the method for determining a downlink initial bandwidth part BWP according to the second aspect or any possible implementation of the second aspect.

[0096] The fifteenth aspect of the present application provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute the method for determining the downlink initial bandwidth part BWP of the third aspect or any possible implementation of the third aspect.

[0097] The beneficial effects of the fourth, seventh, tenth and thirteenth aspects of the present application can be considered to be the same as the beneficial effects described in the first aspect.

[0098] The beneficial effects of the fifth, eighth, eleventh and fourteenth aspects of the present application can be considered to be the same as the beneficial effects described in the second aspect.

[0099] The beneficial effects of the sixth, ninth, twelfth and fifteenth aspects of the present application can be considered to be the same as the beneficial effects described in the third aspect.

[0100] The sixteenth aspect of the present application provides a communication system, which may include a terminal device and a network device, wherein the terminal device can be considered as a terminal device described in any one of the first to third aspects above.

[0101] A seventeenth aspect of the present application provides a chip, which includes a processor and a communication interface, wherein the processor and the communication interface are coupled, and the processor is used to execute the method for determining the initial BWP provided in any one of the first to third aspects above.

[0102] The solution provided in this application provides a new method for determining BWP, which saves the system bandwidth required by the system to support different types of terminal devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0103] Figure 1 is a schematic diagram of a wireless communication system applicable to an embodiment of the present application;

[0104] Figure 2 is a schematic diagram of another wireless communication system applicable to an embodiment of the present application;

[0105] Figure 3 A schematic diagram of a method for determining an initial BWP provided in an embodiment of the present application;

[0106] Figure 4 Schematic diagram of RBs of different frequency resources;

[0107] Figure 5 A schematic diagram of another method for determining an initial BWP provided in an embodiment of the present application;

[0108] Figure 6 A schematic diagram of a table of a design method for frequency resources of a first initial BWP provided in an embodiment of the present application;

[0109] Figure 7 A flowchart of a method for determining a downlink initial bandwidth part BWP provided in an embodiment of the present application;

[0110] Figure 8 A flowchart of another method for determining a downlink initial bandwidth part BWP provided in an embodiment of the present application;

[0111] Fig. 9 A schematic diagram of another method for determining an initial BWP provided in an embodiment of the present application;

[0112] Fig.10 A schematic diagram of another method for determining an initial BWP provided in an embodiment of the present application;

[0113] Fig.11 A schematic diagram of another method for determining an initial BWP provided in an embodiment of the present application;

[0114] Fig.12 A schematic diagram of another method for determining an initial BWP provided in an embodiment of the present application;

[0115] Fig.13 A schematic diagram of another method for determining an initial BWP provided in an embodiment of the present application;

[0116] Fig.14 A schematic diagram of another method for determining an initial BWP provided in an embodiment of the present application;

[0117] Fig.15 A schematic diagram of another method for determining an initial BWP provided in an embodiment of the present application;

[0118] Fig.16 A schematic diagram of another method for determining an initial BWP provided in an embodiment of the present application;

[0119] Fig.17 A schematic diagram of the hardware structure of a terminal device provided in an embodiment of the present application;

[0120] Fig.18 A schematic diagram of the structure of a terminal device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0121] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0122] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0123] To facilitate understanding of the embodiments of the present application, Figure 1 and Figure 2 The communication system shown in the figure is used as an example to describe in detail the communication system applicable to the embodiments of the present application. Figure 1 and Figure 2 is a schematic diagram of a wireless communication system applicable to an embodiment of the present application. Figure 1 As shown, the wireless communication system may include a single or multiple network devices, or as shown in Figure 2 As shown, the wireless communication system may include a single or multiple terminal devices, and the present application sometimes also refers to the wireless communication system as a communication system. A single network device can transmit data or control signaling to a single or multiple terminal devices. Multiple network devices can also transmit data or control signaling to a single terminal device at the same time. The wireless communication system can support coordinated multiple points transmission (CoMP), that is, multiple cells or multiple network devices can collaboratively participate in the data transmission of a terminal device or jointly receive data sent by a terminal device, or multiple cells or multiple network devices perform collaborative scheduling or collaborative beamforming. Among them, the multiple cells can belong to the same network device or different network devices, and can be selected based on channel gain or path loss, received signal strength, received signal instructions, etc.

[0124] Should understand Figure 1 or Figure 2 For ease of understanding only, network devices and terminal devices are schematically shown, but this should not constitute any limitation to the present application. The wireless communication system may also include a greater or lesser number of network devices, and may also include a greater number of terminal devices. The network devices that communicate with different terminal devices may be the same network devices or different network devices, and the number of network devices that communicate with different terminal devices may be the same or different. The present application includes but is not limited to this.

[0125] Usually, when a terminal device accesses a wireless communication system, for example, when the terminal device accesses a long-term evolution (LTE) system or an NR system, it needs to synchronize with the network device under the wireless communication system first, that is, first determine the synchronization information of the data transmission with the network device by detecting the synchronization signal (synchronizing signal) sent by the network device, including time synchronization and / or frequency synchronization information, and then determine the broadcast information carried by the network device in the PBCH according to the determined synchronization information, and further read the system information (system information, SI) according to the demand, for example, first read the system information included in the system information block type 1 (system information block type 1, SIB1), and then obtain the system information necessary for the data transmission with the network device. The information included in SIB1 can be, for example, the configuration information of the random access channel (random access cHannel, RACH) or the scheduling information corresponding to other system messages SI. It should be noted that the name of SIB1 may be different in different systems. Here, for the sake of ease of description, after the terminal device detects the PBCH sent by the network device, in order to transmit data with the network device, the system message sent by the first detected network device is called SIB1. For example, in the NR system, the remaining minimum system information (RMSI) sent by the network device can also be understood as SIB1. For the LTE system, the system information that meets the above characteristics is SIB1.

[0126] The following takes the NR system as an example to introduce the terminal device access to the wireless system in detail. The system bandwidth of NR is relatively large, at least 100MHz. However, due to different capabilities, the maximum bandwidth supported by the terminal device is also different. Some terminal devices may only support 80MHz, 40MHz or 20MHz, or even smaller bandwidths. Therefore, under normal circumstances, in order to meet the needs of the maximum bandwidth supported by the terminal device, the concept of BWP is introduced in NR. Specifically, BWP is currently configured for the terminal device to adapt to the maximum bandwidth that the terminal device can support. Currently, a terminal device in the idle state or inactive state of radio resource control (RRC) needs to receive (system information, SI) to enter the radio resource control connection state (RRC-connected) according to SI. Specifically, the network device broadcasts a synchronization signal block (synchronous signal block, SSB) for the terminal device to reside. SSB carries the primary synchronization signal (PSS), the secondary synchronization signal (SSS) and the physical broadcast channel (PBCH). The PBCH carries the master information block (MIB). The MIB includes the configuration information of the control resource set (CORESET) 0 (such as the bandwidth size, frequency domain position, time-frequency resources, etc. of CORESET0), and the configuration information of the physical downlink control channel (PDCCH) of SIB1 (such as the time domain configuration information of PDCCH, etc.). After receiving the MIB, the terminal device determines that the bandwidth of the initial BWP is the bandwidth of CORESET0, and then receives the scheduling information of SIB1 on the initial BWP, and receives SIB1 on the initial BWP according to the scheduling information of SIB1. In the current NR system, the MIB carried in the PBCH includes the information pdcch-ConfigSIB1, which includes 8 bits, which are used to indicate the configuration information of the CORESET that schedules SIB1. In this application, in order to simplify the description, unless otherwise specified, the downlink initial BWP is the initial BWP when the terminal device is in an idle state or an inactive state.In NR, the frequency resource location and size corresponding to CORESET0 used to schedule SIB1 can be considered as the downlink initial bandwidth part BWP corresponding to the terminal device in idle or inactive state.

[0127] At present, the system design of NR mainly considers the terminal equipment that transmits eMBB services and the terminal equipment that transmits URLLC services. There is no special design for the terminal equipment that transmits mMTC services. Specifically, the system design of NR mainly considers the frequency resources of the initial BWP of the terminal equipment that transmits eMBB services and the terminal equipment that transmits URLLC services, as well as the time resources of CORESET0 of the terminal equipment that transmits eMBB services and the terminal equipment that transmits URLLC services. There is no special design for the frequency resources and time domain resources of the initial BWP of the terminal equipment that transmits mMTC services. In addition, in some scenarios, the downlink initial BWP bandwidth notified by NR through PBCH may be greater than the bandwidth capacity of some terminal equipment that transmits mMTC services, resulting in some terminal equipment that transmits mMTC services being unable to access the NR system.

[0128] In order to solve the above technical problem, the present application provides a method for determining an initial BWP.

[0129] The present application relates to two types of terminal devices, which are referred to herein as first-type terminal devices and second-type terminal devices. The first-type terminal devices and the second-type terminal devices have different capabilities. Specifically, the two types of terminal devices may have one or more of the following distinguishing features:

[0130] (1) Different bandwidth capabilities. For example, the second type of terminal equipment can support the use of frequency resources and network equipment with a bandwidth of 100 MHz on a single carrier for data transmission, while the first type of terminal equipment can support the use of frequency resources and network equipment with a bandwidth of 20 MHz, 10 MHz, or 5 MHz on a single carrier for data transmission.

[0131] (2) Different numbers of transmit and receive antennas. For example, the second type of terminal device can support 4 receive and 2 transmit, or 4 receive and 1 transmit. The first type of terminal device supports a maximum of 2 receive and 1 transmit, or a maximum of 1 receive and 1 transmit. That is, terminal devices that support different numbers of transmit antennas and / or different numbers of receive antennas can be regarded as different types of terminal devices.

[0132] (3) Different uplink maximum transmit powers. For example, the uplink maximum transmit power of the second type of terminal equipment can be 23dBm or 26dBm, while the uplink maximum transmit power of the first type of terminal equipment can only be a value between 4dBm and 20dBm.

[0133] (4) The protocol versions are different, for example, the second type of terminal device is a terminal device of NR Release 17 (or the first type of terminal device is a terminal device of NR Release 17 and a later version), and the first type of terminal device is a terminal device of NR Release 15 and / or NR Release 16. In the present application, terminal devices of NR Release 16 and earlier versions may also be referred to as NR backward compatible (NR-Legacy) terminal devices.

[0134] (5) The supported carrier aggregation capabilities are different. For example, the second type of terminal equipment can support carrier aggregation, while the first type does not support carrier aggregation. For another example, both types of terminal equipment can support carrier aggregation, but the maximum number of carrier aggregations simultaneously supported by the second type of terminal equipment is greater than the maximum number of carrier aggregations simultaneously supported by the first type of terminal equipment. For example, the second type of terminal equipment can simultaneously support the aggregation of up to 5 carriers or 32 carriers, while the first type of terminal equipment can simultaneously support the aggregation of up to 2 carriers.

[0135] (6) Different duplex capabilities: For example, the second type of terminal device supports full-duplex FDD, or the second type of terminal device supports both full-duplex FDD and half-duplex FDD, while the first type of terminal device only supports half-duplex FDD.

[0136] (7) The data processing time capabilities are different. The terminal devices with strong data processing time capabilities can be considered as the second type of terminal devices, and the terminal devices with weak data processing time capabilities can be considered as the first type of terminal devices. The different processing time capabilities can be expressed by the relationship between the minimum delay of the two types of terminal devices in processing data, or by the relationship between the maximum delay of the two types of terminal devices in processing data, or by the relationship between the minimum delay of one type of terminal device in processing data and the maximum delay of another type of terminal device in processing data. The data processing delay can be expressed in at least one of the following ways: the delay between receiving downlink data and sending feedback on the downlink data, the delay between sending uplink data and receiving feedback on the uplink data, and the delay between receiving control information and sending uplink data according to the control information. For example, the minimum delay between one type of terminal device receiving downlink data and sending feedback on the downlink data is smaller than the minimum delay between another type of terminal device receiving downlink data and sending feedback on the downlink data, and / or the minimum delay between one type of terminal device sending uplink data and receiving feedback on the uplink data is smaller than the minimum delay between another type of terminal device sending uplink data and receiving feedback on the uplink data, and / or the minimum delay between one type of terminal device receiving control information and sending uplink data based on the control information is smaller than the minimum delay between another type of terminal device receiving control information and sending uplink data based on the control information.

[0137] (8) Different processing capabilities. The processing capabilities of the terminal device here may include at least one of the following: the number of hybrid automatic repeat request (HARQ) processes supported by uplink data transmission and / or downlink data transmission, the size of the soft buffer, the highest quadrature amplitude modulation (QAM) supported by uplink data transmission and / or downlink data transmission, etc. Among them, the terminal device with strong processing capabilities can be considered as the second type of terminal device, and the terminal device with weak processing capabilities can be considered as the first type of terminal device.

[0138] (9) The uplink data transmission peak rate and / or the downlink data transmission peak rate are different.

[0139] Specifically, in the present application, the first type of terminal device among the two types of terminal devices is an NR-light terminal device, and the second type of terminal device is a non-NR-Light terminal device or a terminal device with both NR-light and non-NR-Light functions (for example, NR Release 15, and / or NR Release 16 terminal devices, and may also be terminal devices evolved in future wireless communication systems, not limited to LTE terminal devices, and NR terminal devices), wherein the NR-Light terminal device may correspond to a terminal device with lower capability in the above distinguishing feature description; or, both types of terminal devices may be NR-light terminal devices, but there are the above distinguishing features between the two terminal devices, and both are NR-light terminal devices, and the maximum data transmission bandwidth of one terminal device on one carrier can be 20MHz, and the maximum data transmission bandwidth of another terminal device on one carrier can be 10MHz. In addition, NR-light terminal devices can also be understood as NR low capability (NR reduced capability, NR REDCAP) terminal devices.

[0140] The present application will explain the method for determining the initial BWP provided by the present application from three aspects. The first aspect is how to determine the frequency resources of the initial BWP. The second aspect is how to determine the time resources of CORESET0, and the third aspect is how to determine the period of the first time resource. Among them, regarding how to determine the frequency resources of BWP in the first aspect, the present application specifically provides three design methods of the frequency resources of BWP. The first method is: the frequency resources of the first initial BWP corresponding to the first type of terminal device are included in the frequency resources of the second initial BWP corresponding to the second type of terminal device. The second method is: there is no overlap between the frequency resources of the first initial BWP corresponding to the first type of terminal device and the frequency resources of the second initial BWP corresponding to the second type of terminal device. The third method is: there is no overlap between the frequency resources of the first initial BWP corresponding to the first type of terminal device and the frequency resources of the synchronization signal block SSB. Among them, regarding how to determine the time resources of CORESET0 in the second aspect, the present application specifically provides three design methods. It should be noted that any of the design methods of these three time resources can be combined with any of the above-mentioned three frequency resource design methods. Regarding the third aspect, the present application provides two design methods. It should be noted that how the third aspect determines the period of the first time resource can be combined with any one of the three time resource design methods provided in the second aspect. A method for determining the initial BWP provided in an embodiment of the present application will be specifically introduced below.

[0141] It should be noted that, in this application, the initial BWP can be understood as a BWP including public information transmission. The public information transmission may include at least one of the following:

[0142] (1) System Information broadcast by a network device and / or control information for scheduling transmission of the system information. The system information may include scheduling system information block type 1 (SIB1) or other system information (SI).

[0143] (2) Paging information broadcast by a network device and / or control information for scheduling the transmission of the paging information.

[0144] (3) Random access response (RAR) information broadcast by network devices.

[0145] In particular, the public information included in the first initial BWP corresponds to the first type of terminal device, and the public information included in the second initial BWP corresponds to the second type of terminal device. When the first type of terminal device and the second type of terminal device use related public information, it can also be understood that the public information included in the first initial BWP corresponds to both the first type of terminal device and the second type of terminal device, or, the public information included in the second initial BWP corresponds to both the first type of terminal device and the second type of terminal device.

[0146] In this application, a BWP consists of frequency-contiguous resource blocks (RBs), one RB includes 12 subcarriers, and the frequency bandwidth of the BWP is not greater than the frequency bandwidth corresponding to the carrier including the BWP. Currently in the NR system, on a carrier or a serving cell, data transmission between a terminal device and a network device is implemented within an activated BWP, and the network device can configure up to 4 BWPs for the terminal device.

[0147] More specifically, for example, the initial BWP is understood as the frequency resources notified through the MIB, such as the frequency resources notified through the pdcch-ConfigSIB1 included in the MIB, or the frequency resources configured in the SIB1 information, where the SIB1 information includes control information for scheduling SIB1 transmission, and / or SIB1 system information transmitted through the physical downlink shared channel (PDSCH).

[0148] (I) The first frequency resource design method

[0149] like Figure 3 , which is a schematic diagram of a method for determining an initial BWP provided in an embodiment of the present application.

[0150] Among them, the horizontal axis represents time, and the vertical axis represents frequency. The figure shows the time-frequency resource range of SSB transmission, the time-frequency resource range corresponding to the first type of terminal equipment, and the time-frequency resource range corresponding to the second type of terminal equipment. Here, the time-frequency resource range corresponding to the first type of terminal equipment can be understood as including the data transmission corresponding to the first type of terminal equipment within the time-frequency resource range, and the data transmission is, for example, system information scheduling information corresponding to the first type of terminal equipment and transmitted through the physical downlink control channel (physical downlink control channel, PDCCH) and / or system information transmitted through PDSCH. Similarly, the time-frequency resource range corresponding to the second type of terminal equipment can be understood as including the data transmission corresponding to the second type of terminal equipment within the time-frequency resource range, and the data transmission is, for example, system information scheduling information corresponding to the second type of terminal equipment and transmitted through PDCCH and / or system information transmitted through PDSCH.

[0151] In this embodiment, the frequency resources of the first initial BWP corresponding to the first type of terminal device are determined, and the frequency resources of the first initial BWP are included in the frequency resources of the second initial BWP corresponding to the second type of terminal device. The capabilities of the first type of terminal device and the second type of terminal device are different. The "included" referred to in this application means that the frequency resource range of the second initial BWP corresponding to the second type of terminal device covers the frequency resource range of the first initial BWP corresponding to the first type of terminal device, which is described in detail below. Through this embodiment, it can be achieved that the initial BWP frequency resources corresponding to the low-capability type of terminal device are included in the initial BWP frequency resources corresponding to the non-low-capability type of terminal device. Even for network devices with relatively small system bandwidth, data transmission of different types of terminal devices can be supported at the same time, and diversified data transmission can be achieved. For example, eMBB services and mMTC services can be supported at the same time, thereby increasing the competitiveness of network deployment.

[0152] In a specific implementation, the frequency resource of the first initial BWP is determined according to the first frequency offset, the first frequency offset belongs to the first set, and the first set is a set of second frequency offsets. Among them, the first frequency offset is the offset of the frequency resource of the first initial BWP relative to the frequency resource of the synchronization signal block SSB, and the second frequency offset is the offset of the frequency resource of the second initial BWP relative to the frequency resource of SSB. In other words, the set corresponding to the frequency offset between the frequency resource of the first initial BWP and the frequency resource of SSB is a subset of the set corresponding to the frequency offset between the frequency resource of the second initial BWP SSB. It should be noted that the synchronization signal block corresponding to the first frequency offset can be the SSB corresponding to the first type of terminal device, or it can be the SSB corresponding to the second type of terminal device, and the SSB corresponding to the second frequency offset is the SSB corresponding to the second type of terminal device. For example, the second type of terminal device is a non-NRREDCAP terminal device, and the SSB corresponding to the non-NR REDCAP terminal device is Release 15SSB. At this time, the SSB corresponding to the first frequency offset is also Release 15SSB.

[0153] Optionally, the value of the first frequency offset is related to the system bandwidth, the sub-carrier spacing (SCS) corresponding to the SSB transmission corresponding to the first frequency offset, and the SCS corresponding to the data transmission included in the initial BWP, wherein the SSB corresponding to the first frequency offset represents the SSB used as a reference when determining the first frequency offset. The SCS corresponding to the data transmission included in the initial BWP can be represented by the SCS corresponding to the public information transmission included in the initial BWP. It should be noted that the SCS corresponding to the public information transmission can be represented by the SCS corresponding to the control information for scheduling the public information transmission, or it can be directly represented by the SCS corresponding to the public information transmission. Here, the SCS corresponding to the control information can be understood as the SCS used when the network device transmits the control information. The same description also applies to the SCS corresponding to the public information transmission, which will not be repeated. Among them, the SCS corresponding to the control information for scheduling the public information transmission can also be represented by the PDCCH SCS that carries the control information. Optionally, the PDCCH SCS here is, for example, an SCS corresponding to a control channel carrying SIB1 scheduling information, or an SCS corresponding to a Type 0 PDCCH search space set (Type0-PDCCH search space set) including SIB1 scheduling information. Here, the SIB1 scheduling information can be understood as control information for scheduling SIB1 transmission. In order to simplify the description, the following uses PDCCH SCS to represent the SCS corresponding to the data transmission included in the initial BWP as an example for explanation.

[0154] At present, in the 5G NR system, the sub-carrier spacing (SCS) of SSB and the SCS support of the initial BWP include: {SSB SCS, PDCCH SCS} = {{15, 15}, {15, 30}, {30, 15}, {30, 30}, {120, 60}, {120, 120}, {240, 60}, {240, 120}} kHz. Among them, the combination of {{15, 15}, {15, 30}, {30, 15}, {30, 30}} kHz is a combination that can be used below 6 GHz; the combination of {{120, 60}, {120, 120}, {240, 60}, {240, 120}} kHz is a combination that can be used above 6 GHz. The following describes the design method of the first frequency resource with a combination that can be used below 6 GHz.

[0155] In the implementation manner provided in the present application, the frequency bandwidth of the first initial BWP may be a bandwidth that matches the bandwidth capability of the first type of terminal device. For example, if the bandwidth capability of the first type of terminal device is 5MHz, the frequency bandwidth of the first initial BWP is also 5MHz. For another example, if the first type of terminal device includes multiple bandwidth capabilities, for example, the NR REDCAP terminal device includes terminal devices with bandwidth capabilities of 5MHz, 10MHz, and 20MHz, respectively, then the frequency bandwidth of the first initial BWP may be determined according to different first type terminal devices, or may be determined according to the minimum bandwidth capability of the first type of terminal device, such as 5MHz in this example. The first initial BWP bandwidth may also be other values, which are not specifically limited in the present application. The size of the first initial BWP bandwidth (bandwidth capability) may be pre-configured, for example, it may be 5MHz, or 10MHz. If expressed in RB, it may be, for example, 24 (resource blocks, RBs), or 48 RBs. In the present invention, an RB is composed of an integer number of continuous subcarriers, for example, 12 continuous subcarriers; or, the first initial BWP bandwidth is notified by a master information block (MIB) carried in a physical broadcast channel (PBCH), or it can be notified by other means, as long as it is ensured that the first type of terminal device can support the bandwidth of the first initial BWP. The present application does not specifically limit how the first type of terminal device obtains the bandwidth of the first initial BWP, and will not be repeated below. In addition, in the present application, the bandwidth of the first initial BWP can also be described by the bandwidth of a control resource set 0 (control resource set 0, CORESET0) including a Type0 PDCCH search space set, wherein in the Type0 PDCCH search space set, the terminal device at least detects control information scrambled by a system information radio network temporary identity (SI-RNTI).

[0156] Category 1: When the minimum system bandwidth is 5 MHz or 10 MHz, {SSB SCS, PDCCH SCS} = {15 kHz, 15 kHz}:

[0157] In the scenario of category one, the set of the second frequency offset is {0, 2, 4, 12, 16, 38}, where the unit of {0, 2, 4, 12, 16, 38} corresponds to RB. The first frequency offset belongs to the first set, and the first set is the set of second frequency offsets, then the first frequency offset is any one of the set {0, 2, 4, 12, 16, 38}. It should be noted that in actual application scenarios, the second type of terminal equipment will only determine a second frequency offset. The first set referred to in this application refers to the set of frequency offsets that may be used by the second type of terminal, which will not be repeated below. Several specific design methods for this classification scenario are given below:

[0158] When the first initial BWP bandwidth corresponding to the first terminal device is 24 RBs, the second initial BWP bandwidth is 48 RBs, and the second frequency offset is 12 or 16, the first frequency offset is 0 or 4.

[0159] When the first initial BWP bandwidth corresponding to the first terminal device is 24 RBs, the bandwidth of the second initial BWP is 96 RBs and the second frequency offset is 38, the first frequency offset is 2.

[0160] The first initial BWP bandwidth corresponding to the first terminal device is 48 RBs, and the first frequency offset is any one item in the set {12, 16, 38}.

[0161] The first initial BWP bandwidth corresponding to the first terminal device is 96 RBs, and the first frequency offset is 38.

[0162] It should be noted that, in the present application, when the bandwidth of the first initial BWP is 24 RBs, the subcarrier spacing corresponding to the RB here is the subcarrier spacing corresponding to the initial BWP, or it can be represented by the PDCCH subcarrier spacing as described above. In the present application, the PDCCH subcarrier spacing can be understood as the subcarrier spacing corresponding to the initial BWP. The above description is also valid for the following implementation methods, even if the first initial BWP bandwidth corresponding to the first type of terminal device is not 24 RBs, and it will not be repeated below.

[0163] It should be noted that, in the present application, the frequency offset between one frequency resource A and another frequency resource B can be expressed by the difference in the number of RBs between the RB position corresponding to the starting position of frequency resource A and the RB position corresponding to the starting position of frequency resource B, or can be expressed by the difference in the number of RBs between the RB position corresponding to the ending position of frequency resource A and the RB position corresponding to the ending position of frequency resource B, wherein the RB corresponding to the starting position of the frequency resource can be the RB corresponding to the lowest frequency or the highest frequency of the frequency resource, and accordingly, the RB corresponding to the ending position of the frequency resource can be the RB corresponding to the highest frequency or the lowest frequency of the frequency resource. When describing the frequency offset between different frequency resources, the starting positions of different frequency resources are measured using the same method, for example, they are all determined by the RB corresponding to the lowest frequency of the frequency resource, or the RB corresponding to the highest frequency.

[0164] It should be noted that in this application, the subcarrier spacings corresponding to different frequency resources may be different or the same, without limitation. When the subcarrier spacings corresponding to different frequency resources are different, the number of RBs corresponding to the frequency offset between different frequency resources may be represented by the RB of any one of the frequency resources.

[0165] In addition, it should be noted that the RB boundaries of different frequency resources may not be aligned. Figure 4 As shown in a in FIG, the frequency offset between frequency resource A and frequency resource B is less than one RB. One RB has 12 consecutive subcarriers in frequency. Figure 4 In the case shown in a in FIG. 1 , the frequency offset between frequency resource A and frequency resource B is 0 RB. Figure 4 As shown in b in FIG, the frequency offset between frequency resource A and frequency resource B is greater than one RB and less than two RBs. Although the RB boundaries of different frequency resources are not aligned, it can be considered that Figure 4 In the case shown in b, the frequency offset between frequency resource A and frequency resource B is 1 RB. The above description is also valid for other parts of the present application and will not be repeated below.

[0166] Category 2: When the minimum system bandwidth is 5MHz or 10MHz, {SSB SCS, PDCCH SCS} = {15kHz, 30kHz}:

[0167] In the scenario of category 2, the set of the second frequency offset is {5, 6, 7, 8, 18, 20}, where the unit of {5, 6, 7, 8, 18, 20} corresponds to RB. The first frequency offset belongs to the first set, and the first set is the set of the second frequency offset. The first frequency offset is a set, and the first frequency offset is any one of the set {5, 6, 7, 8, 18, 20}. Several specific design methods for this classification scenario are given below:

[0168] When the bandwidth of the second initial BWP is 48 RBs and the second frequency offset is 18 RBs, the first frequency offset is any one of {5, 6}.

[0169] When the bandwidth of the second initial BWP is 48 RBs and the second frequency offset is 20 RBs, the first frequency offset is any one of {7, 8}.

[0170] The first initial BWP bandwidth corresponding to the first terminal device is 48 RBs, and the first frequency offset is any item in the set {18, 20}.

[0171] Category 3: When the minimum system bandwidth is 5MHz or 10MHz, {SSB SCS, PDCCH SCS} = {30kHz, 15kHz}:

[0172] In the scenario of category three, the set of the second frequency offset is {2, 6, 28}, where the unit of {2, 6, 28} corresponds to RB. The first frequency offset belongs to the first set, and the first set is the set of the second frequency offset, then the first frequency offset is any one of the set {2, 6, 28}. Several specific design methods for this classification scenario are given below:

[0173] When the bandwidth of the second initial BWP is 96 RBs and the second frequency offset is 28 RBs, the first frequency offset is 2 RBs.

[0174] The first initial BWP bandwidth corresponding to the first type of terminal device is 96 RBs, and the first frequency offset is 28.

[0175] Category 4: When the minimum system bandwidth is 5 MHz or 10 MHz, {SSB SCS, PDCCH SCS} = {30 kHz, 30 kHz}:

[0176] In the scenario of category 4, the set of the second frequency offset is {0, 1, 2, 3, 4, 12, 17, 16}, where the unit of {0, 1, 2, 3, 4, 12, 17, 16} corresponds to RB. The first frequency offset belongs to the first set, and the first set is the set of the second frequency offset. Then the first frequency offset is any one of the set {0, 1, 2, 3, 4, 12, 17, 16}. Several specific design methods for this classification scenario are given below:

[0177] When the bandwidth of the second initial BWP is 48 RBs and the second frequency offsets are 12, 17, and 16 respectively, the first frequency offsets are 0, 2, and 4 respectively.

[0178] The first initial BWP bandwidth corresponding to the first type of terminal device is 48 RBs, and the first frequency offset is any one item in the set {12, 17, 16}.

[0179] Category 5: When the minimum system bandwidth is 40MHz, {SSB SCS, PDCCH SCS} = {30kHz, 15kHz}: In the scenario of category 5, the set of the second frequency offset is {4, 0, 56}, where the unit of {4, 0, 56} corresponds to RB. The first frequency offset belongs to the first set, and the first set is the set of the second frequency offset. Then the first frequency offset is any one of the set {4, 0, 56}. Several specific design methods for this classification scenario are given below:

[0180] The first initial BWP bandwidth corresponding to the first type of terminal device is 96 RBs, and the first frequency offset is any one of {0, 56}.

[0181] Category 6: When the minimum system bandwidth is 40MHz, {SSB SCS, PDCCH SCS} = {30kHz, 30kHz}:

[0182] In the scenario of category six, the set of the second frequency offset is {0, 4, 28}, where the unit of {0, 4, 28} corresponds to RB. The first frequency offset belongs to the first set, and the first set is the set of the second frequency offset, then the first frequency offset is any one of the set {0, 4, 28}. Several specific design methods for this classification scenario are given below:

[0183] The first initial BWP bandwidth corresponding to the first type of terminal device is 48 RBs, and the first frequency offset set is any one of {0, 28}.

[0184] Through the above implementation, not only can the nested relationship between the frequency resources of the first initial BWP and the frequency resources of the second initial BWP be realized, thereby saving the system bandwidth required by the system to support diversified terminal devices, but also because the specific value of the first frequency offset is determined by referring to different values ​​of the second frequency offset in the design, and the second frequency offset is designed with consideration of the influence of different system bandwidths and synchronization grids of different synchronization signal blocks, the specific value of the first frequency offset determined according to different values ​​of the second frequency offset can inherit the advantages of the second frequency offset design and can reduce the complexity of the standard design.

[0185] In a specific implementation, the frequency offset between the frequency resources of the first initial BWP and the frequency resources of the second initial BWP is 0, or the frequency offset between the frequency resources of the first initial BWP and the frequency resources of the second initial BWP is the frequency resource size of the second initial BWP minus the frequency resource size of the first initial BWP. In other words, Figure 5 As shown in a in , the RB position corresponding to the starting position of the frequency resource of the first initial BWP is the same as the RB position corresponding to the starting position of the frequency resource of the second initial BWP, or as Figure 5 As shown in b, the RB position corresponding to the end position of the frequency resource of the first initial BWP is the same as the RB position corresponding to the end position of the frequency resource of the second initial BWP.

[0186] It should be noted that the first type of terminal device can determine the frequency resources of the first initial BWP through pre-configuration. The first type of terminal device can also determine the frequency resources of the first initial BWP through indication information sent by the network device. The indication information can be the frequency resources for configuring the first initial BWP, or can be the frequency resources for configuring the second initial BWP. These situations will be explained separately below.

[0187] It should be noted that, in the design method of the frequency resources of the first type of first initial BWP, the first initial BWP may include an uplink initial BWP and a downlink initial BWP. The following takes the downlink initial BWP as an example to specifically describe the method for the first type of terminal device to determine the frequency resources of the first initial BWP.

[0188] (1) Determine the frequency resources of the first initial BWP by preconfiguration.

[0189] In this manner, the first type of terminal device pre-saves the frequency resource configuration information of the first initial BWP. The first type of terminal device accesses the wireless system and can determine the frequency resource configuration information of the first initial BWP according to the pre-configuration information. Figure 6This implementation method is introduced. In the above discussion of different classification scenarios, several specific design methods are given, such as Figure 6 As shown in , the several specific design methods given above can be presented in a table form. For example, Figure 6 The table shown in a in the figure is several specific design methods given in the corresponding scenarios of category 1, such as Figure 6 The table shown in b in FIG. 1 is several specific design methods given in the scenario corresponding to category 2. The configuration information of the first type of terminal device can be pre-specified, for example, the first type of terminal device can be pre-stored Figure 6 As shown in the table, when the first type of terminal device accesses the wireless system, it can be Figure 6 The table shown in determines the frequency resource configuration information of the first initial BWP.

[0190] It should be noted that the first type of terminal device may only store the first frequency offset configuration information, and the bandwidth of the first type of terminal device may be preconfigured. The first type of terminal device may also only store the first frequency offset and the bandwidth of the first type of terminal device, but not the bandwidth of the second type of terminal device and the second frequency offset.

[0191] (2) The first type of terminal device determines the frequency resources of the first initial BWP through the indication information sent by the network device, and the indication information is used to configure the frequency resources of the first initial BWP.

[0192] The frequency resource design of the first initial BWP, or the size of the first frequency offset is the inventive point of this implementation. As for how the network device sends the indication information and how the terminal device determines the frequency resource of the first initial BWP based on the indication information, the solutions in the prior art can be adopted in this solution.

[0193] (3) The first type of terminal device determines the frequency resources of the first initial BWP through the indication information sent by the network device, and the indication information is used to configure the frequency resources of the second initial BWP.

[0194] The first frequency offset is determined according to the first configuration information from the network device, and the first configuration information is used to configure the frequency resources of the second initial BWP. In the above discussion of the design method of the first frequency resource, the relationship between the frequency resources of the first initial BWP corresponding to the first type of terminal device and the frequency resources of the second initial BWP corresponding to the second type of terminal device is given. In this implementation, the indication information sent by the network device is used to configure the frequency resources of the second initial BWP, and the first type of terminal device determines the frequency resources of its own first initial BWP according to the indication information. In this implementation, the network device does not need to send additional indication information to the second type of terminal device to determine the frequency resources of the first initial BWP, which can save the overhead of the network device sending control information and realize energy saving of the network device. At the same time, using this method, there are few changes on the basis of the existing technology. Several specific methods are given below to discuss how the first type of terminal device determines the frequency resources of the first initial BWP according to the indication information sent by the network device. It should be understood that in addition to the several specific implementation methods discussed below, as long as the frequency resources of the first initial BWP are included in the range of the frequency resources of the second initial BWP corresponding to the second type of terminal device, the method in which the first type of terminal device determines the frequency resources of the first initial BWP according to the indication information should belong to the protection scope of this application.

[0195] like Figure 7 , which is a flow chart of a method for determining an initial bandwidth part BWP provided in an embodiment of the present application.

[0196] A method for determining an initial bandwidth part BWP provided by the present application may include the following steps:

[0197] 701. A first type of terminal device receives first configuration information sent by a network device.

[0198] The first configuration information is used to configure the frequency resources of the second initial BWP.

[0199] 702. The first type of terminal device determines a first index value according to first configuration information.

[0200] For example, the indication information is a MIB message. PDCCH-ConfigSIB1 in the MIB indicates the index of a table. For example, in the scenario of category one, that is, the minimum system bandwidth is 5MHz or 10MHz, {SSB SCS, PDCCHSCS} = {15kHz, 15kHz}, PDCCH-ConfigSIB1 indicates the index of the following Table 1, and the last column offset in the table is the second offset. Table 1 includes the number of RBs and the number of symbols, where number of RBs is used to indicate the bandwidth of the second initial BWP, and number of symbols is used to indicate the time resources occupied by CORESET0 in time. It should be noted that the time resources occupied by CORESET0 in time may appear periodically. The number of symbols here indicates the time resources of CORESET0 in one period, that is, the number of symbols occupied in time. Table 1 may also include SS / PBCH block and PDCCH CORESET multiplexing pattern (SS / PBCH block and CORESET multiplexing pattern), which is not shown in Table 1 because it is not closely related to the present application.

[0201] The first type of terminal device determines the first index value according to the first configuration information. For example, the corresponding value of pdcch-ConfigSIB1 is 7, that is, the index is determined to be 7, that is, the first index value is 7. Table 1:

[0202]

[0203] 703. The first type of terminal device determines M index values, and a frequency offset indicated by any one of the M index values ​​determines a first frequency offset.

[0204] M is a positive integer. M index values ​​and the first index value are used to indicate the frequency offsets included in the first set. For example, taking Table 1 as an example, the first set is {0, 2, 4, 12, 16, 38}. M index values ​​are less than or equal to the index value of the first index value. The first type of terminal device determines the first frequency offset according to the frequency offset indicated by any one of the M index values. For example, if the first type of terminal device determines that the first index value is 7 according to the first configuration information, in the above Table 1, the index values ​​less than 7 are 0 to 6, so M is 7, the frequency offset indicated by index value 0 is 0, the frequency offset indicated by index value 1 is 2, the frequency offset indicated by index value 2 is 4, the frequency offset indicated by index value 3 is 0, the frequency offset indicated by index value 4 is 2, the frequency offset indicated by index value 5 is 4, and the frequency offset indicated by index value 6 is 12, so the first frequency offset may be any one of {0, 2, 4, 12}.

[0205] like Figure 8 , which is a flow chart of another method for determining an initial bandwidth part BWP provided in an embodiment of the present application.

[0206] A method for determining a downlink initial bandwidth part BWP provided by the present application may include the following steps:

[0207] 801. A first type of terminal device receives first configuration information sent by a network device.

[0208] 802. The first type of terminal device determines a first index value according to first configuration information.

[0209] Step 801 and step 802 can refer to Figure 7 The steps 701 and 702 in the corresponding embodiment are understood and will not be repeated here.

[0210] 803. The first type of terminal device determines a first frequency offset according to a second index value, where the second index value is a value obtained by taking a modulus of a preset value from the first index value.

[0211] The first type of terminal device determines a second index value, where the second index value is a value obtained by taking the first index value modulo a preset value, and the first index value and the second index value indicate a frequency offset included in the first set.

[0212] The following takes the scenario described in category 1 as an example to illustrate this implementation. The corresponding value of pdcch-ConfigSIB1 is the first index value, and the first index value is modulo the preset value. Optionally, in this implementation, the preset value can be that the initial BWP bandwidth included in the table where the first index value is located is not greater than the total number of configurations of the first initial BWP bandwidth corresponding to the first type of terminal device.

[0213] For example, in the scenario corresponding to category one, it is assumed that the bandwidth of the first initial BWP is 24 RBs. As shown in Table 1, the preset value can be 6 (that is, all configuration information corresponding to the corresponding index values ​​0 to 5). The first type of terminal device can determine the frequency resource distribution of the first initial BWP based on the result of the modulo operation in combination with Table 1. For example, the first index value is 9, and the modulo operation of 9 to 6 (9mod 6) is 3. The first type of terminal device can determine that the first frequency offset is the frequency offset corresponding to the index value 3 in Table 1, which is 0.

[0214] In the scenario corresponding to category 1, assuming that the bandwidth of the first initial BWP is not greater than 48 RBs, as shown in Table 1, the preset value can be 12 (i.e., all configurations corresponding to index values ​​0 to 11). The first type of terminal device can determine the frequency resource distribution of the first initial BWP based on the result of the modulo operation in combination with Table 1. For example, if the first index value is 13, 13 modulo 12 (13mod 12) is 1, then the first type of terminal device can determine that the first frequency offset is the frequency offset corresponding to the index value 1 in Table 1, which is 2 RBs.

[0215] In a specific implementation, the first frequency offset is determined based on the first number of time-frequency resources, the first number of time-frequency resources and the second number of time-frequency resources correspond to the frequency offsets included in the first set, the first number of time-frequency resources is the number of time-frequency resources closest to the second number of time-frequency resources, and the second number of time-frequency resources is the number of time-frequency resources corresponding to CORESET0 of the second type of terminal device.

[0216] The following takes the scenario described in category one as an example to illustrate this implementation. The first type of terminal device determines that the second number of time-frequency resources corresponding to CORESET0 included in the second initial BWP is 48 RBs*1 OFDM symbol according to pdcch-ConfigSIB1. Assuming that the bandwidth of the first type of terminal device is 24 RBs, then through Table 1, the first terminal device can determine that when the first number of time-frequency resources corresponding to CORESET0 included in the first initial BWP is 24 RBs*2 OFDM symbols, the first number of time-frequency resources is closest to the second number of time-frequency resources. In combination with Table 1, when the number of time-frequency resources corresponding to CORESET0 included in the initial BWP is 24 RBs*2 OFDM symbols, the corresponding frequency offset (offset in the table) can be 0, 2, or 4. At this time, the first frequency offset can be any one of {0, 2, 4}. Optionally, for example, the first frequency offset can be pre-configured to be the frequency offset corresponding to the minimum index value in {0, 2, 4} or the minimum value of the frequency offsets, for example, the first frequency offset is pre-configured to be 0.

[0217] For another example, the first type of terminal device determines according to pdcch-ConfigSIB1 that the time-frequency resources corresponding to CORESET0 included in the second initial BWP are 48 RBs*2 OFDM symbols, or when the corresponding time-frequency resources are more, the first type of terminal device can determine that the number of time-frequency resources corresponding to CORESET0 included in the first initial BWP is 24 RBs*3 OFDM symbols. Combined with Table 1 above, when the number of time-frequency resources corresponding to CORESET0 included in the first initial BWP is 24 RBs*3 OFDM symbols, the corresponding frequency offset (offset in the table) can be 0, 2, or 4. At this time, the first frequency offset can be any value in {0, 2, 4,}. For example, in a specific implementation, the first frequency offset can be pre-configured as the frequency offset corresponding to the minimum index value of {0, 2, 4,} or as the minimum value among the frequency offsets, for example, the first frequency offset is to be configured to be 0.

[0218] (II) The second frequency resource design method

[0219] like Fig. 9 , which is a schematic diagram of a method for determining an initial BWP provided in an embodiment of the present application.

[0220] The first type of terminal device determines the frequency resources of the initial BWP corresponding to the first type of terminal device, there is no overlap between the frequency resources of the first initial BWP and the frequency resources of the second initial BWP, and the capabilities of the first type of terminal device and the second type of terminal device are different.

[0221] Through this implementation, since there is no overlap between the frequency resources of the first initial BWP and the frequency resources of the second initial BWP, the impact on the data transmission of the second type of terminal device can be reduced. For systems with relatively large system bandwidth, through this implementation, it is possible to support diversified data services (for example, supporting both eMBB services and mMTC services) without affecting the impact on the already deployed eMBB services.

[0222] In a specific implementation, the first initial BWP bandwidth may be predefined as the bandwidth of the first type of terminal device, for example, 5 MHz. The frequency offset between the first initial BWP frequency resource and the second initial BWP frequency resource may be predefined or implemented in other ways, without specific limitation. For example, the frequency offset between the first initial BWP frequency resource and the second initial BWP frequency resource is 1 RB, which can achieve support for diversified data services as described above, and can also achieve minimization of the system bandwidth that supports diversified data services at the same time.

[0223] It should be noted that, in the second design method of the frequency resource of the first initial BWP, the first initial BWP may include an uplink initial BWP and a downlink initial BWP.

[0224] (III) The third frequency resource design method

[0225] like Fig.10 , which is a schematic diagram of a method for determining an initial BWP provided in an embodiment of the present application.

[0226] The first type of terminal device determines the frequency resources of the initial BWP corresponding to the first type of terminal device, there is no overlap between the frequency resources of the first initial BWP and the frequency resources of the synchronization signal block SSB, and the capabilities of the first type of terminal device and the second type of terminal device are different.

[0227] Further optionally, in this implementation, the frequency resources of the first initial BWP not only have no overlap with the frequency resources of the SSB, but are also included in the frequency resources of the second initial BWP.

[0228] This implementation method can effectively utilize system frequency resources, which is especially suitable for systems with small system bandwidth but need to serve diversified services.

[0229] In a specific implementation, the frequency offset between the frequency resources of the first initial BWP and the SSB frequency resources may be predefined, and the bandwidth of the first initial BWP may be predefined as the bandwidth of the first type of terminal device, such as 5 MHz, or other values ​​without specific limitation.

[0230] It should be noted that, in the present application, the frequency resource of the first initial BWP can be understood as including the frequency resource position of the first initial BWP, which can be specifically represented by the frequency starting point of the first initial BWP and the bandwidth of the first initial BWP, or the frequency end point of the first initial BWP and the bandwidth of the first initial BWP. The second initial BWP has the same description and is not specifically limited in the embodiments of the present application.

[0231] It should be noted that the above implementation method can also be used for the first initial BWP frequency resource determination method when the NR carrier frequency is greater than 6 GHz.

[0232] The above describes the design methods of the three frequency resources provided in the embodiments of the present application. The following describes how to determine the time resources of CORESET0.

[0233] It should be noted that, in the embodiment of the present application, CORESET0 can be understood as above, and can also be understood as a control resource set CORESET including scheduling information transmission, wherein the scheduling information is control information for scheduling the transmission of public information included in the initial BWP. For example, CORESET0 is a time-frequency resource set including SIB1 PDCCH transmission, and / or a time-frequency resource set including Paging PDCCH transmission, and / or a time-frequency resource set including RAR PDCCH transmission. Among them, SIB1 PDCCH is a physical downlink control channel that carries control information for scheduling SIB1 transmission, Paging PDCCH is a physical downlink control channel that carries control information for scheduling Paging transmission, and RAR is a physical downlink control channel that carries scheduling RAR information. The frequency resources of CORESET0 can be equivalent to the frequency resources of the initial BWP, and the time resources of CORESET0 can be represented by the time position of the PDCCH search space (search space, SS) or PDCCH search space set searchspace set associated with the CORESET0. Here, the PDCCH SS or PDCCH search space set associated with the CORESET0 can be understood as the frequency resources corresponding to the CORESET0 including the PDCCH SS or PDCCH search space set configuration, wherein the search space set can be understood as a set of PDCCH alternatives that a terminal device needs to detect. On the PDCCH alternative, the terminal device may detect the control information for scheduling the data transmission of the terminal device, or may not detect it, depending on whether the network device sends the control information for scheduling the data transmission of the terminal device on the PDCCH alternative. The control information here can be cell-specific control information or terminal device-specific control information, which is not specifically limited in the embodiments of the present application.

[0234] More specifically, the time resources of CORESET0 can be understood as the time resources notified by pdcch-ConfigSIB1 included in the MIB, that is, the time resources corresponding to the Type0-PDCCH search space set.

[0235] To simplify the description, the following description uses the time resources corresponding to CORESET0.

[0236] (I) The first design method of CORESET0 time resources

[0237] In this implementation, the time resource corresponding to CORESET0 corresponding to the first initial BWP is

[0238] The wireless frame where the time resources of the first CORESET0 corresponding to the first type of terminal device are located does not include the time resources for transmission of the synchronization signal block SSB, or the time slot where the first time resources are located does not include the time resources of the second CORESET0 corresponding to the second type of terminal device.

[0239] Optionally, the first time resources corresponding to different beam directions are preferentially mapped in a radio frame that does not include time resources for SSB transmission, and are sequentially mapped in time slots in which time slot indices are arranged in ascending order according to the SSB index associated therewith, and the time slots to which the first time resources are mapped do not include the time resources of the second CORESET0. It should be noted that the beam directions corresponding to the first time resources at different time positions may be the same or different, and are not specifically limited. The advantage of such an implementation is that when the system begins to support service transmission of the first type of terminal device, the service transmission of the second type of terminal device that may have been deployed in the system will not be affected by the introduction of the first type of terminal device, especially when the public information transmission corresponding to the second type of terminal device is in the same time slot or the same radio frame as the SSB transmission, this implementation method can avoid the impact on the initial access of the second type of terminal device. Here, for example, the first type of terminal device is an NR REDCCAP terminal device, and the second type of terminal device is an eMBB terminal device that has been deployed by NR (for example, a terminal device of NR R15 / R16 version).

[0240] When the number of time slots excluding the time resources of the second CORESET0 in a wireless frame that does not include the time resources of SSB transmission is insufficient to support the mapping of the first time resources corresponding to all beam directions, the unmapped first time resources continue to be mapped in the time slots of the wireless frame that includes the time resources of SSB transmission and does not include the time resources of the second CORESET0.

[0241] In a specific implementation, the first time resources corresponding to the same SSB are distributed in two consecutive time slots in a radio frame. In other words, multiple first time resources having the same quasi colocation (QCL) relationship with an SSB are distributed in consecutive time slots in a radio frame. Through this implementation, the joint channel estimation performance between the control information of the scheduling common information transmission transmitted in multiple first time resources can be guaranteed, which is convenient for the terminal device to achieve combined detection performance. For example, if the first time resources corresponding to the same SSB index are distributed in two consecutive time slots, then preferably, the time slots where the first time resources corresponding to the same SSB index are located are in the same radio frame and distributed in two consecutive time slots, so that the terminal device can continuously detect the SIB1 control information included in the CORESET0 corresponding to the same SSB index in time, thereby ensuring the channel estimation performance.

[0242] In the present application, the first time resources corresponding to different beam directions can be understood as: different SSB indexes associated with CORESET0 correspond to different beam directions. That is, different beam directions can be distinguished by SSB indexes. If the SSB indexes are different, the beam directions corresponding to CORESET0 associated with SSB are considered to be different. Even if in practice, data of the same beam direction sent by a network device through different SSB indexes can be considered to be different beam directions in the present application.

[0243] In a specific implementation, the first time resource is determined according to second configuration information from the network device, and the second configuration information is used to configure the second time resource. This is explained below with reference to a specific example:

[0244] The first time resource can be determined by the following formula:

[0245]

[0246] The second configuration information may be a MIB message, and each parameter is determined as follows:

[0247] Parameter O and parameter M may be directly determined according to the pdcch-ConfigSIB1 indication included in the MIB.

[0248] L is the maximum number of SSBs that can be transmitted in the frequency band where the SSB is located. In the NR system, SSB will be sent periodically in units of 5ms per half frame. The half frame period containing SSB can be {5ms, 10ms, 20ms, 40ms, 80ms, 160ms}. SSB can be sent repeatedly in a half frame, and the maximum number of repetitions is L. The value of L is determined by the frequency band where the NR carrier is located.

[0249] Offset' represents a time offset, which is a preconfigured value or indicated by the second configuration information.

[0250] i is the index of the SSB corresponding to the time resource of the first CORESET0.

[0251] The value of M' can be the same as M.

[0252] u corresponds to different subcarrier spacing or different parameter sets (numerology). The value of u can refer to Table 2

[0253] Table 2:

[0254] μ <![CDATA[Sub - carrier spacing Δf = 2 μ ·15 [kHz]]]> 0 15 1 30 2 60 3 120 4 240

[0255] The radio frame index of the slot obtained by the above calculation can be determined by the parity corresponding to the slot index, or the slot obtained by the above calculation is preferentially in a radio frame that does not contain NR SSB transmission.

[0256] In a specific implementation manner, the time resource (eg, time slot) where the first time resource is located may also be determined by the following formula:

[0257]

[0258] The first type of terminal device determines the O and M parameters in the above formula according to the pdcch-ConfigSIB1 included in the MIB, and then determines the slot where the first time resource is located according to the predefined time offset and n0 calculated by the above formula. The time offset here can be understood as the time offset between the first time resource and the second time resource corresponding to the same SSB index. For example, if O indicated by pdcch-ConfigSIB1 is 0, the predefined time offset can be 5; for another example, no matter what the specific value of O indicated by pdcch-ConfigSIB1 is, the time offset can be 5. Alternatively, the first type of terminal device determines the values ​​of O and M parameters in the above formula according to the control information, and combines the predefined time offset to determine the slot where the first time resource is located. The value directly determines the slot where the first time resource is located. The embodiment of the present application does not specifically limit the specific transmission method of the control information and the transmission channel carried. Similarly, the radio frame index where the slot calculated in this way is located can be determined by the parity corresponding to the slot index, or the slot obtained by the above calculation is preferentially in the radio frame that does not contain NR SSB transmission.

[0259] It should be noted that in the technical solution provided in the present application, the first configuration information and the second configuration information may be the same information, or the first configuration information and the second configuration information may be different information, but are carried in the same downlink data transmission channel. For example, the downlink data transmission channel may include but is not limited to a broadcast channel, downlink control information, and a downlink shared channel, which will not be repeated below.

[0260] It should be noted that, in the embodiment of the present application, the first time resource and the time resource including SSB transmission may be time division multiplexed (time domain multiplexing, TDM), that is, the first time resource and the time resource including SSB transmission do not overlap in time. For example, the time resource including SSB transmission corresponds to a different time slot than the first time resource, or the corresponding OFDM symbol is different.

[0261] (II) The second design method of CORESET0 time resources

[0262] Determine the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal equipment, and the first time resources are included in the second time resources.

[0263] In a preferred embodiment, this embodiment can be used in conjunction with the frequency resource of the first initial BWP determined by the design of the first or second frequency in the above description.

[0264] It should be noted that, in the embodiment of the present application, the first time resource and the time resource including SSB transmission may be TDM, that is, the first time resource and the time resource including SSB transmission do not overlap in time. For example, the time resource including SSB transmission corresponds to a different time slot than the first time resource, or the corresponding OFDM symbol is different.

[0265] (III) The third design method of CORESET0 time resources

[0266] Determine the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device, and the first time resources are included in the time resources of the synchronization signal block SSB.

[0267] It should be noted that the SSB corresponding to the first type of terminal device and the SSB corresponding to the second type of terminal device may be the same or different, and this application does not make any specific limitations on this.

[0268] It should be noted that any of the three time resource design methods can be combined with any of the three frequency resource design methods mentioned above. For example, the first frequency resource design method can be combined with the first CORESET0 time resource design method. Figure 3 The first frequency resource design method can be combined with the second CORESET0 time resource design method. Fig.11 The first frequency resource design method can be combined with the third CORESET0 time resource design method. Fig.12 The second frequency resource design method can be combined with the first CORESET0 time resource design method. Fig.13 The second frequency resource design method can be combined with the second CORESET0 time resource design method. Fig. 9 The second frequency resource design method can be combined with the third CORESET0 time resource design method. Fig.14 The third frequency resource design method can be combined with the first CORESET0 time resource design method. Fig.15 The third frequency resource design method can be combined with the second CORESET0 time resource design method. Fig.16 The third frequency resource design method can be combined with the third CORESET0 time resource design method. Fig.10 The schematic diagram shown can be understood. Optionally, the network device can flexibly configure the above combination mode according to its own business needs. For example, the network device can be configured with X configurations, and the X configurations include at least one of the above combination modes. Specifically, for example, the network device is configured with only one configuration, then this configuration can be one of the above combinations, or the network device is configured with two configurations, and these two configurations are at least two of the above combinations. The specific terminal device determines the frequency resources and time resources (CORESET0 time resources) of the first initial BWP by which configuration, which can be achieved in other ways, and this application does not make specific limitations.

[0269] The above introduces the method of determining the initial BWP from the perspective of how to determine the frequency resource of the initial BWP and how to determine the time resource of CORESET0. It should be noted that the first time resource can appear periodically. The following will illustrate the period design method of the first time resource with reference to a specific example.

[0270] 1. The first-time resource cycle design method

[0271] Since the second time resource may appear periodically, the period of the first time resource may be the same as the period of the second time resource, or the period of the first time resource may be different from that of the second time resource. For example, in a specific implementation, the period of the first time resource may be an integer multiple or a fractional multiple of the period of the second time resource. The different periods of the first time resource and the second time resource can facilitate the network device to adaptively design appropriate time resources for carrying the transmission of public information according to the capabilities of different types of terminal devices, while ensuring the performance of public information transmission, especially the coverage performance, and ensuring the efficiency of resource use, avoiding unnecessary resource overhead on the network device side. It should be noted that the first period design method of the first time resource provided in this application can be applied alone, or it can be used in combination with the design methods of the frequency resources of the three initial BWPs and the design methods of the three CORESET0 time resources introduced above. Specifically, when the period design method of the first time resource is used in combination with any one of the design methods of the CORESET0 time resources, the design method of each period of the first time resource is the same as the design method of the CORESET0 time resource.

[0272] In a specific implementation, the first periodic design method of the first time resource can be combined with the design method of the second CORESET0 time resource. When combined with the design method of the second CORESET0 time resource, the first time resource is included in the second time resource, which can include at least one of the following understandings:

[0273] (1) The period of the first time resource is the same as the period of the second time resource. The second time resource in which the second CORESET0 appears includes the time resource of the first CORESET0. For example, within a period, the time resource of the second CORESET0 corresponds to the time resource range of the M1th OFDM symbol to the M2th OFDM symbol (including the M1th and M2th OFDM symbols) in a time slot. Then, the time resource of the first CORESET0 may correspond to the M3th to M4th OFDM symbols (including the M3th and M4th OFDM symbols) in the time slot, where M3 is not less than M1 and M4 is not greater than M2.

[0274] (2) The period of the first time resource is different from the period of the second time resource, and the period of the first time resource is an integer multiple of the period of the second time resource. In addition, in the time resource where the first time resource and the second time resource overlap, the first time resource is included in the second time resource.

[0275] In addition, optionally, the first time resource may also satisfy: the period of the first time resource is different from the period of the second time resource, and the period of the first time resource is a fractional multiple of the period of the second time resource, and in the time resource where the first time resource and the second time resource overlap, the first time resource is included in the second time resource. For example, the period of the second time resource is 10ms, and the period of the first time resource is 5ms. In the embodiment of the present application, since the first time resource is also included in the second time resource in the overlapping resources, this implementation method can also be understood as the first time resource being included in the second time resource.

[0276] Through the above-mentioned implementation, since the first time resource can be included in the second time resource (such as (1) and (2)), or part of the first time resource can be included in the second time resource (such as (3)), the network device can transmit the public information corresponding to the first type of terminal device within the second time resource. On the other hand, the network device will also transmit the public information corresponding to the second type of terminal device within the second time resource. Therefore, when the network device sends public information to different types of terminal devices, the network device can increase the probability of shutting down symbols (for example, the shut-down symbols can be symbols carrying the public information transmission corresponding to the first type of terminal devices and the second type of terminal devices), thereby reducing the power consumption required for the network device to transmit data.

[0277] (II) The second cycle design method of first-time resources

[0278] Since the time resources of SSB appear periodically, the first time resource may be the same as the period of the time resources of SSB corresponding to the first type of terminal device, or the first time resource may be different from the period of the time resources of SSB corresponding to the first type of terminal device. In a specific embodiment, the period of the first time resource may be an integer multiple or fractional multiple of the period of the time resources of SSB. The first time resource is different from the SSB transmission period, which can facilitate the network device to adaptively design appropriate time resources to carry the transmission of public information according to the coverage performance of different data, thereby ensuring the efficiency of resource use and avoiding unnecessary resource overhead on the network device side. For example, for SSB transmission, the terminal device can ensure the SSB transmission performance by energy accumulation, and for the first time resource including the transmission of public information, the transmission performance of public information can be guaranteed by setting a transmission period different from that of SSB.

[0279] It should be noted that the period design method of the second first time resource provided in the present application can be applied alone or in combination with the design methods of the three initial BWP frequency resources and the three CORESET0 time resources introduced above. Specifically, when the period design method of the second time resource is used in combination with any one of the CORESET0 time resource design methods, the design method of each period of the second time resource is the same as the design method of the CORESET0 time resource.

[0280] In a specific implementation, when combined with the third design method of the time resource of CORESET0, the first time resource is included in the time resource of SSB, which may include at least one of the following understandings:

[0281] (1) The period of the first time resource is the same as the period of the time resource of SSB, and the time resource of the first CORESET0 is included in the time resource of the SSB. For example, in one period, the time resource of SSB corresponds to the time resource range of the M1th OFDM symbol to the M2th OFDM symbol (including the M1th and M2th OFDM symbols) in a time slot, and the time resource of the first CORESET0 can correspond to the M3th to M4th OFDM symbols (including the M3th and M4th OFDM symbols) in the time slot, where M3 is not less than M1, and M4 is not greater than M2.

[0282] (2) The period of the first time resource is different from the period of the SSB time resource, and the period of the first time resource is an integer multiple of the period of the SSB time resource, and in the time resource where the first time resource and the SSB time resource overlap, the first time resource is included in the SSB time resource.

[0283] (3) In addition, optionally, the first time resource may also satisfy: the period of the first time resource is different from the SSB transmission period, and the period of the first time resource is a fractional multiple of the SSB transmission period, and in the time resource where the first time resource and the second time resource overlap, the first time resource is included in the SSB time resource. For example, the transmission period of SSB is 10ms, and the period of the first time resource is 5ms. In the embodiment of the present application, since the first time resource is also included in the SSB time resource in the overlapping resources, this implementation method can also be understood as the first time resource being included in the SSB time resource.

[0284] Through method (3), since the first time resource is included in the SSB time resource, or part of the first time resource is included in the SSB time resource, the probability of the network device turning off the symbol can be increased, thereby reducing the power consumption required for the network device to transmit public information and SSB.

[0285] It should be noted that the first time resource with an NR carrier frequency greater than 6 GHz may also have the above characteristics.

[0286] It should be noted that, in the embodiment of the present application, the period of the first time resource or the period of the time resource including the public information transmission or the period of the first CORESET0 time resource can be the default period of the terminal device, such as 20ms, or the period of the network device sending public information or the period of actually sending public information, for example, the period of the network device sending public information can be 5ms, 10ms, 20ms, 40ms, ..., and the period of the network device actually sending public information can be any value of the period of the network device sending public information. The same description is also given for the period of the second time resource, which will not be repeated. In addition, the SSB transmission period can also be the default period of the terminal device, or the period of the network device sending SSB or the period of actually sending SSB, for example, the period of the network device sending SSB can be 5ms, 10ms, 20ms, 40ms, ..., and the period of the network device actually sending SSB can be any value of the period of the network device sending public information.

[0287] The above introduces the method for determining the initial BWP provided by this application from three aspects: the design method of frequency resources, the design method of time resources of CORESET0, and the design method of the period of time resources. The design method provided by this application is simple in design, inherits the design intention of the existing second initial BWP, and reduces the complexity of standard design.

[0288] It is understandable that, in order to implement the above functions, the above-mentioned first type of terminal device includes hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the modules and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0289] Describing from the hardware structure, Figures 3 to 16 The first type of terminal device can be implemented by one physical device, or by multiple physical devices, or it can be a logical function module within a physical device, and the embodiments of the present application do not make specific limitations on this.

[0290] For example, the first type of terminal device or terminal device, which can also be referred to as a device for determining the downlink initial bandwidth part BWP, can be determined by Fig.17 This is achieved by the communication equipment in the system. Fig.17 The hardware structure diagram of the terminal device provided in the embodiment of the present application is shown, which includes: a communication interface 1701 and a processor 1702 , and may also include a memory 1703 .

[0291] The communication interface 1701 may use any transceiver-like device for communicating with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc.

[0292] Processor 1702 includes, but is not limited to, one or more of a central processing unit (CPU), a network processor (NP), an application-specific integrated circuit (ASIC), or a programmable logic device (PLD). The above-mentioned PLD can be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL), or any combination thereof. Processor 1702 is responsible for communication lines 1704 and general processing, and can also provide various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions. Memory 1703 can be used to store data used by processor 1702 when performing operations.

[0293] The memory 1703 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory may exist independently and be connected to the processor 1702 via a communication line 1704. The memory 1703 may also be integrated with the processor 1702. If the memory 1703 and the processor 1702 are independent devices, the memory 1703 and the processor 1702 are connected, for example, the memory 1703 and the processor 1702 can communicate through a communication line. The communication interface 1701 and the processor 1702 can communicate through a communication line, and the communication interface 1701 can also be directly connected to the processor 1702.

[0294] The communication line 1704 may include any number of interconnected buses and bridges, and the communication line 1704 links together various circuits including one or more processors 1702 represented by the processor 1702 and a memory represented by the memory 1703. The communication line 1704 may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be further described in this application.

[0295] In a specific implementation, the terminal device may include: a processor, configured to execute a program stored in the memory, wherein when the program stored in the memory is executed, the processor is configured to determine a frequency resource of a first initial BWP corresponding to a first type of terminal device, the frequency resource of the first initial BWP may be included in a frequency resource of a second initial BWP corresponding to a second type of terminal device, and the capabilities of the first type of terminal device and the second type of terminal device are different. A communication interface, the communication interface is coupled to the processor, and is configured to transmit signaling and / or data with a network device according to the frequency resource of the first initial BWP.

[0296] In a specific implementation, the method may include: a processor, configured to determine the frequency resources of the initial BWP corresponding to the first type of terminal device, the frequency resources of the first initial BWP and the frequency resources of the second initial BWP do not overlap, and the capabilities of the first type of terminal device and the second type of terminal device are different. A communication interface, the communication interface is coupled to the processor, and is configured to transmit signaling and / or data with the network device according to the frequency resources of the first initial BWP.

[0297] In a specific implementation, the method may include: a processor, configured to determine a frequency resource of an initial BWP corresponding to a first type of terminal device, wherein the frequency resource of the first initial BWP does not overlap with the frequency resource of a synchronization signal block SSB, and the capabilities of the first type of terminal device and the second type of terminal device are different. A communication interface, coupled to the processor, configured to transmit signaling and / or data with a network device according to the frequency resource of the first initial BWP.

[0298] In a specific implementation, the capabilities of the first type of terminal device and the second type of terminal device are different, which may include at least one of the following: the bandwidth capabilities of the first type of terminal device and the second type of terminal device are different. The number of transceiver antennas of the first type of terminal device and the second type of terminal device are different. The maximum uplink transmission power of the first type of terminal device and the second type of terminal device is different.

[0299] In a specific implementation, the frequency resource of the first initial BWP is determined according to the first frequency offset, the first frequency offset belongs to the first set, and the first set is a set of second frequency offsets. The first frequency offset is the offset of the frequency resource of the first initial BWP relative to the frequency resource of the synchronization signal block SSB, and the second frequency offset is the offset of the frequency resource of the second initial BWP relative to the frequency resource of the SSB.

[0300] In a specific implementation, the first frequency offset is determined according to first configuration information from the network device, where the first configuration information is used to configure frequency resources of the second initial BWP.

[0301] In a specific implementation, the first frequency offset is the same as the second frequency offset.

[0302] In a specific implementation, the processor is specifically configured to: determine a first index value according to the first configuration information. Determine M index values, where M is a positive integer, the M index values ​​and the first index value are used to indicate frequency offsets that can be included in the first set, and the M index values ​​are less than or equal to the index value of the first index value. Determine the first frequency offset according to the frequency offset indicated by any one of the M index values.

[0303] In a specific implementation, the processor is specifically configured to: determine a first index value according to the first configuration information; determine a second index value, where the second index value is a value obtained by taking a modulus of a preset value from the first index value, and the first index value and the second index value indicate a frequency offset that can be included in the first set; and determine the first frequency offset according to the second index value.

[0304] In a specific implementation, the first frequency offset is determined based on the first number of time-frequency resources, the first number of time-frequency resources and the second number of time-frequency resources correspond to the frequency offsets that can be included in the first set, the first number of time-frequency resources is the number of time-frequency resources closest to the second number of time-frequency resources, and the second number of time-frequency resources is the number of time-frequency resources corresponding to CORESET0 of the second type of terminal device.

[0305] In a specific embodiment, the processor is also used to: determine the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device, the wireless frame where the first time resources are located cannot include the time resources for the transmission of the synchronization signal block SSB, or the time slot where the first time resources are located cannot include the time resources of the second CORESET0 corresponding to the second type of terminal device.

[0306] In a specific implementation, the first time resources corresponding to the same SSB are distributed in two consecutive time slots in a wireless frame.

[0307] In a specific implementation, the processor is further used to: determine the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device, and the first time resources can be included in the second time resources.

[0308] In a specific embodiment, the processor is also used to: determine the time resources of the first control resource set 0CORESET0 corresponding to the first type of terminal device, and the first time resources can be included in the time resources of the synchronization signal block SSB.

[0309] Optionally, in combination with the eighth to tenth possible implementations of the seventh aspect above, in a twelfth possible implementation, the first time resource is determined based on second configuration information from the network device, and the second configuration information is used to configure the second time resource.

[0310] In the embodiments of the present application, the communication interface can be regarded as a transceiver unit of the terminal device, the processor with processing function can be regarded as a processing unit of the terminal device, and the memory can be regarded as a storage unit of the terminal device. Fig.18As shown, the terminal device includes a transceiver unit 1810, a processing unit 1820, and a storage unit 1830. The transceiver unit may also be referred to as a transceiver, a transceiver, a transceiver device, etc. The processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, etc. Optionally, the device used to implement the receiving function in the transceiver unit 1810 may be regarded as a receiving unit, and the device used to implement the sending function in the transceiver unit 1810 may be regarded as a sending unit, that is, the transceiver unit 1810 includes a receiving unit and a sending unit. The transceiver unit may also be sometimes referred to as a transceiver, a transceiver, or a transceiver circuit, etc. The receiving unit may also be sometimes referred to as a receiver, a receiver, or a receiving circuit, etc. The sending unit may also be sometimes referred to as a transmitter, a transmitter, or a transmitting circuit, etc.

[0311] In a specific implementation, the transceiver unit 1810 is used to execute Figures 3 to 15 The processing unit 1820 is used to perform the sending and receiving operations on the first type of terminal device side. Figures 3 to 15 The processing steps in the first type terminal device side in the storage unit 1830 are used to execute Figures 3 to 15 The storage step in the first type terminal device side.

[0312] In the above embodiments, all or part of the embodiments may be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments may be implemented in the form of a computer program product.

[0313] 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 may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may 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 may be transmitted from a website site, a computer, a server, or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server, or data center. The computer-readable storage medium may be any available medium that a computer can store or a data storage device such as a server or a data center that includes one or more available media integrations. The available medium may be a magnetic medium, (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state hard disk Solid State Disk (SSD)), etc.

[0314] A person skilled in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, which can include: ROM, RAM, disk or CD, etc.

[0315] The method, device and storage medium for determining the downlink initial bandwidth part BWP provided in the embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application; at the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A communication method, characterized in that: The method is applied to a first type of terminal device or a chip of the first type of terminal device, the first type of terminal device is a low-capability REDCAP terminal device, and the method includes: Receiving a system information block type 1 SIB1 from a network device, the SIB1 configuring frequency resources of a first initial bandwidth part BWP; Determine a frequency resource of the first initial BWP corresponding to the first type of terminal device, where the frequency resource of the first initial BWP does not overlap with the frequency domain resource of a synchronization signal block SSB; A downlink physical control channel PDCCH is received from a network device through the frequency resources of the first initial BWP.

2. The method according to claim 1, characterized in that The frequency domain resource domain of the SSB overlaps with the second initial BWP, the second initial BWP corresponds to a second type of terminal device, the capabilities of the first type of terminal device and the second type of terminal device are different, and the second type of terminal device is a non-REDCAP terminal device.

3. The method according to claim 2, characterized in that The first type of terminal device and the second type of terminal device have different capabilities, including at least one of the following: The first type of terminal device and the second type of terminal device have different bandwidth capabilities; The first type of terminal device and the second type of terminal device have different numbers of receiving antennas; The first type of terminal device and the second type of terminal device have different uplink maximum transmission powers.

4. The method according to claim 1, characterized in that The first initial BWP is used to transmit at least one of the following information: Transmitting system information and / or control information for scheduling transmission of said system information; Paging information and / or control information for scheduling transmission of the paging information; Random access response RAR information.

5. The method according to any one of claims 1 to 4, characterized in that The first initial BWP is an initial BWP when the first type of terminal device is in an idle state or an inactive state.

6. A communication method, characterized in that: The method is applied to a network device or a chip of the network device, and the method comprises: A first initial bandwidth part BWP is configured by a system information block type SIB1, the first initial BWP corresponds to a first type of terminal device, and a frequency resource of the first initial BWP does not overlap with a frequency domain resource of a synchronization signal block SSB; A downlink physical control channel PDCCH is sent to the first type of terminal equipment via the frequency resources of the first initial BWP.

7. The method according to claim 6, characterized in that The frequency domain resource domain of the SSB overlaps with the second initial BWP, the second initial BWP corresponds to a second type of terminal device, the capabilities of the first type of terminal device and the second type of terminal device are different, and the second type of terminal device is a non-REDCAP terminal device.

8. The method according to claim 7, characterized in that The first type of terminal device and the second type of terminal device have different capabilities, including at least one of the following: The first type of terminal device and the second type of terminal device have different bandwidth capabilities; The first type of terminal device and the second type of terminal device have different numbers of receiving antennas; The first type of terminal device and the second type of terminal device have different uplink maximum transmission powers.

9. The method according to claim 6, characterized in that The first initial BWP is used to transmit at least one of the following information: Transmitting system information and / or control information for scheduling transmission of said system information; Paging information and / or control information for scheduling transmission of the paging information; Random access response RAR information.

10. The method according to any one of claims 6 to 9, characterized in that The first initial BWP is an initial BWP when the first type of terminal device is in an idle state or an inactive state.

11. A communication device, the device being a first type of terminal equipment or a chip of the first type of terminal equipment, characterized in that: include: A transceiver unit, configured to receive a system information block type 1 SIB1 from a network device, wherein the SIB1 configures frequency resources of a first initial bandwidth part BWP; A processing unit, configured to determine a frequency resource of the first initial BWP corresponding to the first type of terminal device, where the frequency resource of the first initial BWP does not overlap with a frequency domain resource of a synchronization signal block SSB; The transceiver unit is further configured to receive a downlink physical control channel PDCCH from a network device through the frequency resources of the first initial BWP.

12. The device according to claim 11, characterized in that The frequency domain resource domain of the SSB overlaps with the second initial BWP, the second initial BWP corresponds to a second type of terminal device, the capabilities of the first type of terminal device and the second type of terminal device are different, and the second type of terminal device is a non-REDCAP terminal device.

13. The device according to claim 12, characterized in that The first type of terminal device and the second type of terminal device have different capabilities, including at least one of the following: The first type of terminal device and the second type of terminal device have different bandwidth capabilities; The first type of terminal device and the second type of terminal device have different numbers of receiving antennas; The first type of terminal device and the second type of terminal device have different uplink maximum transmission powers.

14. The device according to claim 11, characterized in that The first initial BWP is used to transmit at least one of the following information: Transmitting system information and / or control information for scheduling transmission of said system information; Paging information and / or control information for scheduling transmission of the paging information; Random access response RAR information.

15. The device according to any one of claims 11 to 14, characterized in that The first initial BWP is an initial BWP when the first type of terminal device is in an idle state or an inactive state.

16. A communication device, the device being a network device or a chip of the network device, characterized in that: include: A processing unit, configured to configure a first initial bandwidth part BWP through a system information block type SIB1, wherein the first initial BWP corresponds to a first type of terminal device, and a frequency resource of the first initial BWP does not overlap with a frequency domain resource of a synchronization signal block SSB; A transceiver unit is used to send a downlink physical control channel PDCCH to the first type of terminal equipment through the frequency resources of the first initial BWP.

17. The device according to claim 16, characterized in that The frequency domain resource domain of the SSB overlaps with the second initial BWP, the second initial BWP corresponds to a second type of terminal device, the capabilities of the first type of terminal device and the second type of terminal device are different, and the second type of terminal device is a non-REDCAP terminal device.

18. The device according to claim 17, characterized in that The first type of terminal device and the second type of terminal device have different capabilities, including at least one of the following: The first type of terminal device and the second type of terminal device have different bandwidth capabilities; The first type of terminal device and the second type of terminal device have different numbers of receiving antennas; The first type of terminal device and the second type of terminal device have different uplink maximum transmission powers.

19. The device according to claim 16, characterized in that The first initial BWP is used to transmit at least one of the following information: Transmitting system information and / or control information for scheduling transmission of said system information; Paging information and / or control information for scheduling transmission of the paging information; Random access response RAR information.

20. The device according to any one of claims 16 to 19, characterized in that The first initial BWP is an initial BWP when the first type of terminal device is in an idle state or an inactive state.

21. A communication device, characterized in that: include: A processor and a communication interface, wherein the processor is used to call and run instructions from the communication interface, and when the processor executes the instructions, the terminal device implements the method as described in any one of claims 1 to 5.

22. A network device, characterized in that: include: A processor and a communication interface, wherein the processor is used to call and run instructions from the communication interface, and when the processor executes the instructions, the terminal device implements the method as described in any one of claims 6 to 10.

23. A computer-readable storage medium, characterized in that: The computer-readable storage medium is used to store a computer program, and when the computer program is executed on a computer, the computer implements the method according to any one of claims 1 to 5, or implements the method according to any one of items 6 to 10.

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