Resource allocation method and related device

Abstract

The invention provides a resource configuration method and a related device, relates to the technical field of communication, and is beneficial to saving network energy consumption. The method comprises: determining first information, the first information being used for indicating a first physical random access channel (PRACH) resource, a first mapping relationship being present between the first PRACH resource and a synchronization signal block (SSB), the first PRACH resource being a resource available for a first type of terminal equipment; second information is determined, the second information is used for indicating a second PRACH resource, a second mapping relation exists between the second PRACH resource and the SSB, the second PRACH resource is a resource available for both the first type of terminal equipment and the second type of terminal equipment, and the first type of terminal equipment and the second type of terminal equipment are different in capability; and sending the first information and the second information.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication technology, and in particular to a resource configuration method and related apparatus. BACKGROUND

[0002] Mobile network is one of the main services of major operators, and the energy cost consumed by the mobile network accounts for about 23% of the total cost of the operators. Most of the energy consumption comes from the process of terminal wireless access network, especially the process of accessing the network through active antenna unit (AAU) and building baseband unit (BBU). Therefore, a method for saving network energy consumption needs to be proposed for the process of terminal wireless access network to reduce the cost paid by major operators on the mobile network.

[0003] In the current terminal wireless access network, the terminal initiates a physical random access channel (PRACH) request to the base station based on the received synchronization signal block (SSB) and the PRACH resource corresponding to each SSB.

[0004] With the change of technology, the number of terminals increases and the capabilities of the terminals become different, but the current network device configures PRACH resources for terminals with different capabilities in a way that is not conducive to saving energy consumption. SUMMARY

[0005] The embodiments of the present application provide a resource configuration method and related apparatus, which are applied to the field of communication technology and are conducive to saving network energy consumption.

[0006] In a first aspect, the embodiments of the present application provide a resource configuration method, which is applied to a network device or a chip in the network device, and the present application does not limit this. The method comprises: determining first information, the first information being used to indicate a first physical random access channel (PRACH) resource, the first PRACH resource and a synchronization signal block (SSB) having a first mapping relationship, the first PRACH resource being a resource available to a first type of terminal device; determining second information, the second information being used to indicate a second PRACH resource, the second PRACH resource and the SSB having a second mapping relationship, the second PRACH resource being a resource available to both the first type of terminal device and a second type of terminal device, the first type of terminal device and the second type of terminal device having different capabilities; and sending the first information and the second information.

[0007] Optionally, the first type of terminal device can be a terminal device with network energy saving (NES) capability, supporting R19 communication standard and communication standards after R19, and the first type of terminal device can be a device supporting energy saving optimization of the network device under specific conditions, for example, can support more flexible sleep mode, adaptive power transmission, etc.; the second type of terminal device can be a terminal device supporting communication standards before R19, which can also be referred to as a legacy UE or an inventory terminal device, etc., but the present application does not make specific limitation thereon.

[0008] Optionally, the first terminal device can belong to the first type of terminal device or the second type of terminal device, and the present application does not make specific limitation thereon. In some implementations, the first type of terminal device can have the capability of the second type of terminal device.

[0009] The method provided by the embodiments of the present application indicates the first PRACH resource for the first type of terminal device on the basis of indicating the second PRACH resource for the first type of terminal device and the second type of terminal device, and indicates that the SSB beam transmitted by the network device has a first mapping relationship with the first PRACH resource and a second mapping relationship with the second PRACH resource, based on which the first terminal device can select the available resource to send uplink data after receiving the first information and the second information. The method provided by the embodiments of the present application gives the first mapping relationship between the SSB and the first PRACH resource, provides a possible implementation manner for utilizing the first PRACH resource, and if the first terminal device is a NES-capable UE, the first terminal device can send uplink data on the first PRACH resource, and if the first terminal device is a legacy UE, the first terminal device can still send uplink data on the second PRACH resource, without affecting the normal work of the second type of terminal device, while the network device can utilize the capability of the first type of terminal device to improve energy saving gain and reduce energy consumption.

[0010] Further, in the embodiments of the present application, the network device can not reselect the time domain format of the PRACH resource by adjusting the SIB, but can newly indicate a part of the resource on the basis of the existing configuration, which is conducive to avoiding greater energy consumption caused by complete update of the existing SIB configuration.

[0011] In some implementations, the first information can be carried by an information element with R19 identifier, so that the first type of terminal device can identify the information and the second type of terminal device does not have the capability of identifying the information, so that the first PRACH resource can be indicated to the first type of terminal device.

[0012] In some implementations of the first aspect, the first information is carried by one or more of: system information; a radio resource control (RRC) protocol; a medium access control (MAC) control element (MAC CE); or, downlink control information (DCI).

[0013] In some implementations, the first information is transmitted by system information, which is beneficial for a terminal device not connected to the network to select a resource to initiate random access, and the first information is transmitted by any one of RRC, MAC CE or DCI, which is beneficial for shortening the resource indication period and improving resource configuration efficiency.

[0014] Optionally, the network device can include an information element with an R19 identifier in the system information, RRC, MAC CE or DCI to enable the first type of terminal device to identify, but the present application does not limit this.

[0015] Optionally, the system information can include one or more of MIB, SIB1, SIB2, SIB3, SIB4, SIB5, SIB6, SIB7, SIB8, SIB9, SIB10, SIB11, SIB12 or SIB13, or other system information blocks, and the present application does not limit this.

[0016] Optionally, the first information and the second information can be carried by the same type of message, or can be carried by different types of messages, and the present application does not specifically limit this.

[0017] In some implementations of the first aspect, the first PRACH resource is dynamically changed in the time domain, and the time domain position of the first PRACH resource after the dynamic change is indicated in one or more of: system information; a radio resource control (RRC) protocol; a medium access control (MAC) control element (MAC CE); or, downlink control information (DCI). The network device can flexibly adjust the access time of the terminal device by adjusting the indicated position of the first PRACH resource in the time domain, and the network device can concentrate data transmission in a part of the time period, so as to achieve the purpose of saving network device energy consumption.

[0018] In a possible implementation, the first PRACH resource and the second PRACH resource can correspond to different PRACH resource format indexes respectively, and the different PRACH resource format indexes can indicate the same subframe (SF) or different subframes, so that the first PRACH resource can or can not include the second PRACH resource.

[0019] In the case where the first PRACH resource includes the second PRACH resource, the first PRACH resource includes the second PRACH resource and a third PRACH resource, the third PRACH resource is different from the time domain location of the second PRACH resource, and the third PRACH resource is a resource other than the second PRACH resource in the first PRACH resource.

[0020] In this case, the first PRACH resource includes the second PRACH resource (or it can also be understood that the first PRACH resource overlaps the second PRACH resource), and the first PRACH resource further includes a third PRACH resource compared with the second PRACH resource, the third PRACH resource is a resource remaining after excluding the second PRACH resource in the first PRACH resource, and the third PRACH resource can also be understood as a resource newly added, an additional resource or an additional resource of the first PRACH resource relative to the second PRACH resource.

[0021] For the mapping manner between the second PRACH resource included in the first PRACH resource and the SSB in the first mapping relationship, the mapping manner can be the same as the existing manner, that is, the SSBs can be sequentially mapped to the second PRACH resource in the order of index numbers from small to large. In this way, changes to the resources already configured for the second type of terminal device can be reduced as much as possible, which is beneficial to saving network energy consumption.

[0022] Embodiments of the present application aim at how the third PRACH resource included in the first PRACH resource is mapped to the SSB in the first mapping relationship.

[0023] In combination with the first aspect, in some implementations of the first aspect, in the first mapping relationship, the SSBs are sequentially mapped to the third PRACH resource in the order of index numbers from large to small, or the SSBs are sequentially mapped to the third PRACH resource in the order of index numbers from small to large.

[0024] In the embodiments of the application, the SSBs are sequentially mapped in the third PRACH resource in a descending order of index numbers, which is also beneficial to shorten the time for a user to obtain all the resources indicated by the SSBs and reduce the access delay of the user.

[0025] In combination with the first aspect, in some implementations of the first aspect, in the first mapping relationship, the preset SSBs are sequentially mapped onto the third PRACH resource in a descending order of index numbers, or the preset SSBs are sequentially mapped onto the third PRACH resource in an ascending order of index numbers, and the preset SSBs are a part of the SSBs.

[0026] Optionally, the preset SSBs can be beams whose number of terminal devices accessing is greater than a certain threshold, which can be understood as beams with a larger number of terminal devices or beams with a larger number of users, but the application does not make a specific limitation in this regard.

[0027] The method provided in the embodiments of the application can map the third PRACH resource for SSB beams with a larger number of terminal devices accessing in a targeted manner. Since the third PRACH resource is a resource newly added to the first PRACH resource relative to the second PRACH resource in a new subframe, only the preset SSBs are mapped on this part of resource, which can allocate more resources for the SSB beams with a larger number of terminal devices, and is beneficial to improve the communication efficiency of the terminal devices.

[0028] In combination with the first aspect, in some implementations of the first aspect, a configuration period of the second PRACH resource is less than an association period of the second PRACH resource, the number of the configuration periods is N, the number of the SSBs is M, the index numbers of the SSBs are integers from 0 to M-1 in sequence, in a first configuration period of the second PRACH resource, SSBs with index numbers from 0 to K are sequentially mapped onto the second PRACH resource corresponding to the first configuration period in an ascending order of index numbers, N and M are integers greater than 1, and K is an integer greater than 0 and less than M-1; in the first mapping relationship, the SSBs are sequentially mapped from the SSB with the index number K in an ascending order until the SSB with the index number M-1 is mapped, and then the SSB with the index number 0 is sequentially mapped onto the third PRACH resource in an ascending order.

[0029] The method provided in the embodiments of the present application is that the third PRACH resource takes the first SSB that is not mapped in the first configuration period of the second PRACH resource as the start, and continues to be mapped in ascending order until the SSB corresponding to the maximum index number is mapped, and then the mapping starts from SSB 0 and ends until all SSB beams are traversed. In this way, compared with the mode of only indicating the second PRACH resource, on the basis of adding the third PRACH resource, the first type of terminal device can receive the resource that can form a complete PRACH associated with all SSB beams more quickly, which is beneficial to reducing the access delay of the first type of terminal device.

[0030] In combination with the first aspect, in some implementations of the first aspect, the number of the associated periods of the second PRACH resource is multiple, and in the first mapping relationship, in the associated periods with odd index numbers, the SSBs are mapped onto the third PRACH resource in descending order of index numbers, and in the associated periods with even index numbers, the SSBs are mapped onto the third PRACH resource in ascending order of index numbers; or, in the associated periods with odd index numbers, the SSBs are mapped onto the third PRACH resource in ascending order of index numbers, and in the associated periods with even index numbers, the SSBs are mapped onto the third PRACH resource in descending order of index numbers.

[0031] In the case where the first PRACH resource does not include the second PRACH resource, the first PRACH resource and the second PRACH resource are independent in the time domain, and in the first mapping relationship, the mapping mode of the first PRACH resource and the SSBs includes the following modes.

[0032] In combination with the first aspect, in some implementations of the first aspect, in the first mapping relationship, the SSBs are mapped onto the first PRACH resource in descending order of index numbers, or the SSBs are mapped onto the first PRACH resource in ascending order of index numbers.

[0033] The method provided in the embodiments of the present application is that M SSBs are mapped onto the second PRACH resource in ascending order of index numbers, and M SSBs are mapped onto the first PRACH resource in descending order of index numbers, which is beneficial to the first type of terminal device receiving the resource that can form a complete PRACH associated with all SSB beams more quickly, and is beneficial to reducing the access delay of the first type of terminal device.

[0034] In some implementations of the first aspect, in the first mapping relationship, the preset SSBs are mapped onto the first PRACH resource in descending order of the index numbers, or the preset SSBs are mapped onto the first PRACH resource in ascending order of the index numbers, and the preset SSBs are a part of the SSBs.

[0035] The method provided by the embodiments of the present application can map the third PRACH resource to the SSB beam with a large number of terminal devices, because the third PRACH resource is a resource newly added to the first PRACH resource in the second PRACH resource, and only the preset SSBs are mapped on this part of the resource, more resources can be allocated to the SSB beam with a large number of terminal devices, which is beneficial to improving the communication efficiency of the terminal devices.

[0036] In some implementations of the first aspect, the configuration period of the second PRACH resource is less than the association period of the second PRACH resource, the number of the configuration period is N, the number of the SSBs is M, the index numbers of the SSBs are integers from 0 to M-1 in sequence, in the first configuration period of the second PRACH resource, the SSBs with index numbers from 0 to K are mapped onto the second PRACH resource corresponding to the first configuration period in ascending order of the index numbers, N and M are integers greater than 1, and K is an integer greater than 0 and less than M-1.

[0037] In the first mapping relationship, the SSBs are mapped onto the first PRACH resource in ascending order from the SSB with the index number K, until the SSB with the index number M-1 is mapped, and then the SSB with the index number 0 is mapped in ascending order.

[0038] The method provided by the embodiments of the present application takes the first SSB not mapped in the first configuration period of the second PRACH resource as the start of the first PRACH resource, and continues to map in ascending order until the SSB with the maximum index number is mapped, and then maps the SSB 0 until all the SSB beams are traversed. In this way, on the basis of the second PRACH resource mapping a part of the SSBs, the subsequent SSBs are continuously mapped, so that the first type of terminal device can receive a PRACH resource capable of forming a complete association of all SSB beams more quickly, which is beneficial to reducing the access delay of the first type of terminal device.

[0039] In some implementations of the first aspect, a number of associated periods of the second PRACH resource is multiple, and in the first mapping relationship, in the associated periods with odd index numbers, the SSBs are sequentially mapped onto the first PRACH resource in descending order of index numbers, and in the associated periods with even index numbers, the SSBs are sequentially mapped onto the first PRACH resource in ascending order of index numbers; or, in the associated periods with odd index numbers, the SSBs are sequentially mapped onto the first PRACH resource in ascending order of index numbers, and in the associated periods with even index numbers, the SSBs are sequentially mapped onto the first PRACH resource in descending order of index numbers.

[0040] In the second aspect, the present application further provides a resource configuration method, which can be applied to a terminal device or a chip in a terminal device, and the present application does not limit this. The method comprises the following steps: receiving first information and second information, the first information is used to indicate a first physical random access channel (PRACH) resource, there is a first mapping relationship between the first PRACH resource and a synchronization signal block (SSB), the second information is used to indicate a second PRACH resource, there is a second mapping relationship between the second PRACH resource and the SSB, the first PRACH resource is a resource available to a first type of terminal device, the second PRACH resource is a resource available to both the first type of terminal device and a second type of terminal device, and the first type of terminal device and the second type of terminal device have different capabilities; and transmitting data based on the first PRACH resource and / or the second PRACH resource.

[0041] In some implementations of the second aspect, the first PRACH resource comprises the second PRACH resource and a third PRACH resource, and the third PRACH resource has a different time domain location than the second PRACH resource.

[0042] In some implementations of the second aspect, in the first mapping relationship, the SSBs are sequentially mapped onto the third PRACH resource in descending order of index numbers, or the SSBs are sequentially mapped onto the third PRACH resource in ascending order of index numbers.

[0043] In some implementations of the second aspect, in the first mapping relationship, a preset SSB is sequentially mapped onto the third PRACH resource in descending order of index numbers, or the preset SSB is sequentially mapped onto the third PRACH resource in ascending order of index numbers, and the preset SSB is a part of the SSBs.

[0044] With reference to the second aspect, in some implementations of the second aspect, a configuration period of the second PRACH resource is less than an association period of the second PRACH resource, a number of the configuration period is N, a number of the SSBs is M, index numbers of the SSBs are integers from 0 to M-1 in sequence, in a first configuration period of the second PRACH resource, SSBs with index numbers from 0 to K are sequentially mapped onto the second PRACH resource corresponding to the first configuration period in an order of index numbers from small to large, N and M are integers greater than 1, and K is an integer greater than 0 and less than M-1; and in the first mapping relationship, the SSBs are sequentially mapped from the SSB with the index number K in an order of index numbers from small to large until the SSB with the index number M-1 is mapped, and then the SSB with the index number 0 is sequentially mapped onto the third PRACH resource in an order of index numbers from small to large.

[0045] With reference to the second aspect, in some implementations of the second aspect, a number of the association period of the second PRACH resource is a plurality, in the first mapping relationship, in the association period with an odd index number, the SSBs are sequentially mapped onto the third PRACH resource in an order of index numbers from large to small, and in the association period with an even index number, the SSBs are sequentially mapped onto the third PRACH resource in an order of index numbers from small to large; or, in the association period with an odd index number, the SSBs are sequentially mapped onto the third PRACH resource in an order of index numbers from small to large, and in the association period with an even index number, the SSBs are sequentially mapped onto the third PRACH resource in an order of index numbers from large to small.

[0046] With reference to the second aspect, in some implementations of the second aspect, the first PRACH resource does not include the second PRACH resource.

[0047] With reference to the second aspect, in some implementations of the second aspect, in the first mapping relationship, the SSBs are sequentially mapped onto the first PRACH resource in an order of index numbers from large to small, or the SSBs are sequentially mapped onto the first PRACH resource in an order of index numbers from small to large.

[0048] With reference to the second aspect, in some implementations of the second aspect, in the first mapping relationship, preset SSBs are sequentially mapped onto the first PRACH resource in an order of index numbers from large to small, or the preset SSBs are sequentially mapped onto the first PRACH resource in an order of index numbers from small to large, and the preset SSBs are part of the SSBs.

[0049] With reference to the second aspect, in some implementations of the second aspect, a configuration period of the second PRACH resource is less than an association period of the second PRACH resource, a number of the configuration period is N, a number of the SSBs is M, index numbers of the SSBs are integers from 0 to M-1 in sequence, in a first configuration period of the second PRACH resource, SSBs with index numbers from 0 to K are sequentially mapped onto the second PRACH resource corresponding to the first configuration period in an order of index numbers from small to large, N and M are integers greater than 1, and K is an integer greater than 0 and less than M-1; and in the first mapping relationship, the SSBs are sequentially mapped from the SSB with the index number K in an order of index numbers from small to large until the SSB with the index number M-1 is mapped, and then the SSB with the index number 0 is sequentially mapped onto the first PRACH resource in an order of index numbers from small to large.

[0050] With reference to the second aspect, in some implementations of the second aspect, a number of the association period of the second PRACH resource is a plurality, in the first mapping relationship, in the association period with an odd index number, the SSBs are sequentially mapped onto the first PRACH resource in an order of index numbers from large to small, and in the association period with an even index number, the SSBs are sequentially mapped onto the first PRACH resource in an order of index numbers from small to large; or, in the association period with an odd index number, the SSBs are sequentially mapped onto the first PRACH resource in an order of index numbers from small to large, and in the association period with an even index number, the SSBs are sequentially mapped onto the first PRACH resource in an order of index numbers from large to small.

[0051] With reference to the second aspect, in some implementations of the second aspect, the first information is carried by one or more of the following: system information; a radio resource control protocol (RRC); a medium access control control element (MAC CE); or downlink control information (DCI).

[0052] With reference to the second aspect, in some implementations of the second aspect, the first PRACH resource is dynamically changed in a time domain.

[0053] With reference to the second aspect, in some implementations of the second aspect, a time domain position of the first PRACH resource after the dynamic change is indicated in one or more of the following: system information; a radio resource control protocol (RRC); a medium access control control element (MAC CE); or downlink control information (DCI).

[0054] With reference to the second aspect, in some implementations of the second aspect, the SSBs are sequentially mapped onto the second PRACH resource in an order of index numbers from small to large.

[0055] In a third aspect, a communication apparatus is provided for performing the method in any possible implementation of the first aspect or the second aspect. Specifically, the apparatus includes modules for performing the method in any possible implementation of the first aspect or the second aspect.

[0056] In a fourth aspect, a communication apparatus is provided for performing the method in any possible implementation of the first aspect or the second aspect. Specifically, the apparatus includes a processor coupled with a memory, and the processor is configured to execute instructions stored in the memory to implement the method in any possible implementation of the first aspect or the second aspect. Optionally, the apparatus further includes the memory. Optionally, the apparatus further includes a communication interface, and the processor is coupled with the communication interface.

[0057] In an implementation, the apparatus is a terminal device. When the apparatus is a terminal device, the communication interface can be a transceiver, or an input / output interface.

[0058] In another implementation, the apparatus is a chip configured in a terminal device. When the apparatus is a chip configured in a terminal device, the communication interface can be an input / output interface.

[0059] In a fifth aspect, a processor is provided, including an input circuit, an output circuit and a processing circuit. The processing circuit is configured to receive a signal through the input circuit, and transmit a signal through the output circuit, so that the processor performs the method in any possible implementation of the first aspect or the second aspect.

[0060] In a specific implementation process, the processor can be a chip, the input circuit can be an input pin, the output circuit can be an output pin, and the processing circuit can be a transistor, a gate circuit, a flip-flop, various logic circuits, etc. The input signal received by the input circuit can be received and input by, for example but not limited to, a receiver, the output signal output by the output circuit can be output to and transmitted by, for example but not limited to, a transmitter, and the input circuit and the output circuit can be the same circuit which is used as the input circuit and the output circuit at different times. The specific implementation of the processor and various circuits is not limited in the embodiments of the present application.

[0061] In a sixth aspect, a processing apparatus is provided, including a processor and a memory. The processor is configured to read instructions stored in the memory, and can receive a signal through a receiver and transmit a signal through a transmitter to perform the method in any possible implementation of the first aspect or the second aspect.

[0062] Optionally, the processor is one or more, and the memory is one or more.

[0063] Optionally, the memory can be integrated with the processor, or the memory and the processor can be separately arranged.

[0064] In a specific implementation process, the memory can be a non-transitory memory, for example, a read only memory (ROM), which can be integrated with the processor on the same chip, or arranged separately on different chips. The type of memory and the arrangement of the memory and the processor are not limited in the present application.

[0065] It should be understood that the relevant data interaction process, for example, sending indication information, can be a process of outputting indication information from the processor, and receiving capability information can be a process of receiving input capability information by the processor. Specifically, the data processed by the processor can be output to the transmitter, and the input data received by the processor can come from the receiver. The transmitter and the receiver can be collectively referred to as a transceiver.

[0066] The processing device in the sixth aspect described above can be a chip, and the processor can be implemented by hardware or software. When implemented by hardware, the processor can be a logic circuit, an integrated circuit, etc. When implemented by software, the processor can be a general-purpose processor, which realizes by reading software codes stored in the memory. The memory can be integrated in the processor, or can exist independently outside the processor.

[0067] In a seventh aspect, a chip or a chip system is provided, which includes at least one processor and a communication interface. The communication interface and the at least one processor are interconnected by a line. The at least one processor is configured to run a computer program or instructions to execute the method in any possible implementation manner of the first aspect or the second aspect. The communication interface in the chip can be an input / output interface, a pin or a circuit, etc.

[0068] In an eighth aspect, a computer program product is provided, which includes a computer program (also referred to as code or instructions). When the computer program is run, the computer program causes a computer to execute the method in any possible implementation manner of the first aspect or the second aspect.

[0069] In a ninth aspect, a computer readable storage medium is provided, which stores a computer program (also referred to as code or instructions). When the computer program is run on a computer, the computer program causes the computer to execute the method in any possible implementation manner of the first aspect or the second aspect. BRIEF DESCRIPTION OF DRAWINGS

[0070] Figure 1 A schematic block diagram of a communication system suitable for the embodiments of the present application;

[0071] Figure 2 A schematic diagram of an overall architecture of communication connection between network elements provided for embodiments of the present application;

[0072] Figure 3 A schematic flow chart of a resource configuration method provided for embodiments of the present application;

[0073] Figure 4 A schematic diagram of time domain location of PRACH resource provided for embodiments of the present application;

[0074] Figure 5 A schematic diagram of time domain location of PRACH resource provided for embodiments of the present application;

[0075] Figure 6 A schematic diagram of mapping relationship between SSB and PRACH resource provided for embodiments of the present application;

[0076] Figure 7 A schematic diagram of mapping relationship between SSB and PRACH resource provided for embodiments of the present application;

[0077] Figure 8 A schematic diagram of mapping relationship between SSB and PRACH resource provided for embodiments of the present application;

[0078] Figure 9 A schematic diagram of mapping relationship between SSB and PRACH resource provided for embodiments of the present application;

[0079] Figure 10 A schematic diagram of mapping relationship between SSB and PRACH resource provided for embodiments of the present application;

[0080] Figure 11 A schematic diagram of mapping relationship between SSB and PRACH resource provided for embodiments of the present application;

[0081] Figure 12 A schematic diagram of mapping relationship between SSB and PRACH resource provided for embodiments of the present application;

[0082] Figure 13 A schematic block diagram of a communication apparatus provided for embodiments of the present application;

[0083] Figure 14 A schematic block diagram of another communication apparatus provided for embodiments of the present application. DETAILED DESCRIPTION

[0084] To facilitate understanding of the resource allocation method, system, storage medium and product provided by the embodiments of the present application, the resource allocation method provided by the embodiments of the present application and the system architecture and application scenarios thereof will be described below. It can be understood that the system architecture and application scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application.

[0085] The technical solutions of the embodiments of the present application can be applied to communication scenarios in various communication systems, such as Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, future 5th Generation (5G) communication system or new radio Access Technology (NR), vehicle-to-X (V2X), which can include vehicle to network (V2N), vehicle to vehicle (V2V), vehicle to infrastructure (V2I), vehicle to pedestrian (V2P), etc., Long Term Evolution-Vehicle (LTE-V), Internet of Vehicles, machine type communication (MTC), Internet of Things (IoT), Long Term Evolution-Machine (LTE-M), Machine to Machine (M2M), etc.

[0086] To facilitate understanding of the embodiments of the present application, first, the system architecture and application scenarios of the communication system to which the embodiments of the present application are applicable will be described. Figure 1 The communication system to which the embodiments of the present application are applicable will be described in detail. Figure 1 is a schematic diagram of the architecture of the communication system 100 to which the embodiments of the present application are applicable. As shown in Figure 1As shown, the communication system 100 can include at least one terminal device, for example Figure 1 As shown, the terminal device 101. It can also include at least one network device, for example Figure 1 As shown, the network device 102. Wherein the terminal device 101 can be mobile or fixed. Network device 102 is a device that can communicate with terminal device 101 through a wireless link, such as a base station or a base station controller, etc. Network device 102 can provide communication coverage for a specific geographic area, and can communicate with terminal devices located within the coverage area (cell).

[0087] It should be understood that Figure 1 The number of network devices and terminal devices shown in the above is only exemplary, and more or fewer network devices and terminal devices can be included in the communication system 100, and the embodiments of the present application are not limited thereto.

[0088] The above-mentioned various communication devices, such as Figure 1 The terminal device 101 and the network device 102 in the above can be configured with multiple antennas. The multiple antennas can include at least one transmitting antenna for transmitting signals and at least one receiving antenna for receiving signals. In addition, each communication device additionally includes a transmitter chain and a receiver chain, and those skilled in the art can understand that they can include a plurality of components (such as processors, modulators, multiplexers, demodulators, demultiplexers or antennas, etc.) related to signal transmission and reception. Therefore, the network device and the terminal device can communicate through multiple antenna technology.

[0089] Optionally, the wireless communication system 100 can also include network controllers, mobile management entities and other network entities, and the embodiments of the present application are not limited thereto.

[0090] In the embodiments of the present application, the network device can determine the resource allocation of the physical random access channel (PRACH) according to the load condition, and the terminal device can select and transmit the PRACH resource based on the PRACH resource allocated by the network device.

[0091] Figure 2 is the overall architecture diagram of the communication connection between the network elements in the embodiments of the present application. As Figure 2As shown, the eNB is a 4G base station. The gNB is a 5G base station. The ng-eNB is a next-generation evolved Node B, that is, an evolved base station, which is an upgraded base station of the 4G base station and interfaces with the 5G core network. The 5GC (5G Core) is a 5G core network responsible for processing and controlling user data and signaling in the 5G network, which can include an AMF (Access and Mobility Management Function) and a UPF (User Plane Function), etc. Among them, the AMF is responsible for mobility management and access control, including access and mobility management of terminal users. The AMF is connected with the base station gNB through the NG to complete the access and mobility management of the terminal user. The UPF is responsible for processing and forwarding user data packets. The NG-RAN (NG Access Radio Network) is a next-generation wireless access network that can meet the multi-layer heterogeneous network of multiple scenarios. For example Figure 2 As shown, the NG-RAN is composed of a group of gNBs and ng-eNBs connected to the 5GC through the NG interface, and the gNBs and ng-eNBs therein can be interconnected through the Xn interface. The Xn interface is an interface between NG-RANs, mainly existing between base stations (such as gNBs and ng-eNBs).

[0092] In the embodiments of the present application, the network device can be any kind of device with wireless transceiver function. The device includes but is not limited to: evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (for example, Home evolved NodeB, or HomeNode B, HNB), baseband unit (BBU), access point (AP) in a wireless fidelity (WIFI) system, wireless relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc. It can also be a gNB or a transmission point (TRP or TP) in a 5G, such as an NR, system, one or a group of (including multiple antenna panels) antenna panels of a base station in a 5G system, or it can also be a network node constituting a gNB or a transmission point, such as a baseband unit (BBU) or a distributed unit (DU), etc.

[0093] In some deployments, a gNB can include a centralized unit (CU) and a DU. The gNB can also include an active antenna unit (AAU). The CU implements part of the functions of the gNB, and the DU implements part of the functions of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, implements the radio resource control (RRC), and the functions of the packet data convergence protocol (PDCP) layer. The DU is responsible for processing the physical layer protocol and real-time services, and implements the functions of the radio link control (RLC) layer, the media access control (MAC) layer, and the physical (PHY) layer. The AAU implements part of the physical layer processing functions, radio frequency processing, and related functions of the active antenna. Since the information of the RRC layer eventually becomes the information of the PHY layer, or is transformed from the information of the PHY layer, under this architecture, high-layer signaling, such as RRC layer signaling, can also be considered as being sent by the DU, or by the DU+AAU. It can be understood that the network device can be a device including one or more of the CU node, the DU node, and the AAU node. In addition, the CU can be divided into a network device in the radio access network (RAN), or can be divided into a network device in the core network (CN), which is not limited in the present application.

[0094] The network device serves a cell, and a terminal device communicates with the cell through a transmission resource (for example, a frequency domain resource, or a spectrum resource) allocated by the network device. The cell can belong to a macro base station (for example, a macro eNB or a macro gNB, etc.), or a base station corresponding to a small cell. The small cell can include a metro cell, a micro cell, a pico cell, a femto cell, etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-speed data transmission services.

[0095] In the embodiments of the present application, the terminal device can also be referred to as user equipment (terminal device), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user equipment. The terminal device in the embodiments of the present application can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical treatment, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolved public land mobile network (PLMN) and the like.

[0096] Among them, the wearable device can also be called a wearable smart device, which is a general term for devices that can be designed and developed by applying wearable technology to daily wear, such as glasses, gloves, watches, clothing and shoes, etc. The wearable device is a portable device that can be directly worn on the body or integrated into the user's clothes or accessories. The wearable device is not only a hardware device, but also a powerful function realized through software support and data interaction, cloud interaction. The general wearable smart device includes functions, large size, and can realize complete or partial functions without relying on a smart phone, such as smart watches or smart glasses, etc., and only focuses on a certain application function, and needs to cooperate with other devices such as a smart phone, such as various smart wristbands, smart jewelry and the like for monitoring body signs.

[0097] In addition, the terminal device can also be a terminal device in an internet of things (IoT) system. The IoT is an important component of future information technology development, and its main technical feature is to connect objects through communication technology and a network, thereby realizing an intelligent network of human-machine interconnection and object-object interconnection.

[0098] The specific form of the terminal device is not limited in the present application.

[0099] In order to clearly describe the technical solutions of the embodiments of the present application, some terms and technologies involved in the embodiments of the present application are briefly introduced as follows:

[0100] 1. Synchronization signal block (SSB)

[0101] The SSB is a synchronization signal block in wireless communication, which is used to realize initial synchronization between the terminal device and the 5G network. Specifically, it can include a PSS (Primary Synchronization Signal), an SSS (Secondary Synchronization Signal), and a PBCH (Physical Broadcast Channel). When the terminal device performs initial synchronization for the 5G network, the terminal device correlates the received signal and the synchronization signal sequence through a matched filter.

[0102] In some implementations, the terminal device needs to access the network through random access, and the terminal device needs to receive the uplink random access channel resource indicated by the network device before random access. The transmission beam (beam) of the network device can correspond to the SSB one by one, and the synchronization signal block can establish a mapping relationship with the random access channel resource. In this way, after the network device transmits SSBs with different indexes through different beams, the terminal device receives which SSB, and can transmit uplink information on the random access channel resource corresponding to the SSB (or on the resource corresponding to the SSB with the best quality selected from the received SSBs). According to the resource selected by the terminal device, the network device can know which beam to transmit the downlink response.

[0103] 2. System information (SI)

[0104] System information is cell-level information, which can include master information block (MIB) and multiple system information blocks (SIBs), such as SIB1, SIB2, SIB3, SIB4, SIB5, SIB6, SIB7, SIB8, SIB9, SIB10, SIB11, SIB12, SIB13, and the like.

[0105] Exemplarily, among the multiple system information, SIB1 can contain relevant access information of the cell, such as cell global identifier, access parameter information, frequency information, cell restriction information, and the like, which can be used to broadcast important information of the cell. In order for the terminal device to correctly access the cell. The terminal device can understand the configuration of the cell by reading the information in SIB1, so as to correctly access and communicate. Then the terminal device can quickly obtain the important information of the cell by broadcasting SIB1, and improve the connection efficiency and reliability of the network.

[0106] 3. Physical random access channel (PRACH)

[0107] The physical random access channel (PRACH) can be used for the terminal device to randomly initiate an uplink request when accessing the network. The main function of the PRACH channel is to realize the uplink synchronization between the terminal device and the network device. The PRACH channel has two modes, which are random access based on contention mode and random access without contention mode. In the random access based on contention mode, the terminal device initiates a random access request by sending a preamble index (Preamble), and multiple terminal devices can send Preamble at the same time. In the random access without contention mode, the terminal device initiates a request by sending a specific non-contention random access request message. Specifically, when the terminal device needs to establish communication with the network device, it will send Preamble through the PRACH channel, and then try to establish a radio resource control (RRC) signaling connection with the network device.

[0108] 4. PRACH resource configuration period (PRACH config period)

[0109] The PRACH resource configuration period can be understood as the configuration repetition period of PRACH in a radio frame. In each PRACH resource configuration period, the location of the PRACH resource has the same rule.

[0110] 5. PRACH resource association period (association period)

[0111] If the resources in one configuration period of PRACH resources are not enough to map all SSBs, the mapping can continue in the next configuration period until all SSBs are mapped. The minimum of the configuration period in which all SSBs are mapped can be referred to as an associated period of PRACH resources.

[0112] If the resources in one configuration period of PRACH resources are enough to map all SSBs, the configuration period of RACH resources can be considered equal to the associated period of PRACH resources. If the resources in one configuration period of PRACH resources are not enough to map all SSBs, the configuration period of RACH resources can be considered less than the associated period of PRACH resources. In this case, the associated period of PRACH resources should be an integer multiple of the configuration period of RACH resources.

[0113] It is worth noting that the configuration period of RACH resources should be less than or equal to the associated period of PRACH resources. By way of example, Table 1 shows the relationship between the configuration period of RACH resources, the number of configuration periods of RACH resources corresponding to the associated period of PRACH resources in a possible implementation.

[0114] Table 1

[0115]

[0116] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0117] To facilitate understanding of the embodiments of the present application, the following explanations are first made:

[0118] First, in order to facilitate clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the same items or similar items with basically the same functions and effects are distinguished by using "first", "second", etc. For example, the first reserved indication information and the second reserved indication information are only used to distinguish different reserved indication information, and the order is not limited. Those skilled in the art can understand that "first", "second", etc. do not limit the number and execution order, and "first", "second", etc. also do not necessarily mean different.

[0119] Second, in the embodiments of the present application, "exemplary" or "for example" is used to represent an example, illustration or description. Any embodiment or design scheme described as "exemplary" or "for example" in the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the use of "exemplary" or "for example" is intended to present the relevant concept in a specific manner.

[0120] Third, in the embodiments of the present application, "at least one" means one or more, and "multiple" means two or more. The association relationship between the associated objects is described by "and / or", which means that there can be three kinds of relationships, for example, A and / or B can represent the following three cases: A exists alone, A and B exist together, and B exists alone, where A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects before and after it. "At least one of the following" or similar expressions means any combination of these items, including any combination of single or multiple items. For example, at least one of a, b, or c can represent a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c can be single or multiple.

[0121] Fourth, in the embodiments of the present application, "when", "if", and "whether" all mean that the device will make corresponding processing under certain objective circumstances, and are not limited to time, and do not require the device to have a judgment action when implemented, nor does it mean that there are other limitations.

[0122] Fifth, "at the same time" in the embodiments of the present application can be understood as at the same time point, or in a time period, or in the same cycle, which can be understood in combination with the context.

[0123] Sixth, in the embodiments of the present application, "A corresponds to B" means that B is associated with A. "Performing B according to A" does not mean that B is only performed according to A, but can also be performed according to A and / or other information.

[0124] Seventh, "predefined" or "preconfigured" can be implemented by pre-saving corresponding codes, tables or other information that can be used to indicate related information in devices (such as terminal devices and network devices), and the present application does not limit the specific implementation manner. Wherein, "saving" can mean saving in one or more memories. One or more memories can be separately set, or integrated in the encoder or decoder, processor, or communication device. One or more memories can be partially separately set and partially integrated in the decoder, processor, or communication device. The type of memory can be any form of storage medium, which is not limited in the present application.

[0125] The predefinition in the present application can be understood as definition, predefinition, storage, pre-storage, pre-negotiation, pre-configuration, solidification, or pre-burning.

[0126] Eighth, in the embodiments of the present application, "for indicating" can include direct indication and indirect indication, and can also include explicit indication and implicit indication. The information indicated by certain information is referred to as to-be-indicated information. In the implementation process, there are many ways to indicate the to-be-indicated information, for example, but not limited to, the to-be-indicated information can be directly indicated, such as the to-be-indicated information itself or an index of the to-be-indicated information. The to-be-indicated information can also be indirectly indicated by indicating other information, where the other information and the to-be-indicated information have an association relationship. The to-be-indicated information can also be indicated only by a part of the to-be-indicated information, and the other part of the to-be-indicated information is known or agreed in advance. For example, whether the to-be-indicated information exists can also be achieved by pre-agreement (for example, agreement) to reduce the indication overhead to a certain extent.

[0127] Ninth, a plurality of embodiments are described in detail below in combination with a plurality of flowcharts, but it should be understood that the flowcharts and the related description of the corresponding embodiments are only examples for facilitating understanding and should not constitute any limitation on the present application. Each step in the flowcharts does not necessarily have to be executed, for example, some steps can be skipped. Moreover, the execution order of each step is not fixed and is not limited to that shown in the figure, and the execution order of each step should be determined according to its function and inherent logic.

[0128] Mobile networks are one of the main services of major operators, and the energy cost consumed accounts for about 23% of the total cost of the operators. Most of the energy consumption comes from the process of terminal device wireless access network, especially through the process of active antenna unit (AAU) and indoor baseband processing unit (BBU) access network. Therefore, a method for saving network energy consumption needs to be proposed for the process of terminal device wireless access network to reduce the cost paid by major operators on mobile networks.

[0129] When the terminal device accesses the network currently, the terminal device initiates a physical random access channel (PRACH) request to the base station based on the received synchronization signal block (SSB) and the PRACH resource corresponding to each SSB.

[0130] With the technology evolution, the number of terminal devices increases, the number of terminal devices corresponding to different beams in a cell is unevenly distributed, and the capabilities of terminal devices become different. However, when the network device configures PRACH resources, it always allocates corresponding PRACH resources to each SSB equally regardless of the number and capabilities of terminal devices in the cell. Moreover, the number of terminal devices in the cell is dynamically changing. The existing resource configuration method is not flexible enough and is not conducive to energy saving of the network device.

[0131] Therefore, the present application provides a resource configuration method and related device, which can indicate two sets of PRACH resources to terminal devices, and the first PRACH resource in the two sets of resources is available to the first type of terminal devices, and the second PRACH resource is available to both the first type of terminal devices and the second type of terminal devices. In addition, the present application embodiment provides a mapping mode of the first mapping relationship between the first PRACH resource and the SSB. In this way, the network device can indicate new PRACH resources without affecting the normal operation of the second type of terminal devices. The first mapping relationship provides the possibility for terminal devices to use the new PRACH resources, which is conducive to improving the flexibility of resource configuration and saving energy of the network device.

[0132] The method provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0133] It should be understood that the following is only for the convenience of understanding and description, and the method provided by the embodiments of the present application is described in detail by taking the interaction between the terminal device and the network device as an example. However, this should not constitute any limitation on the execution subject of the method provided by the present application. For example, the terminal device shown in the following embodiments can be replaced by a component (such as a chip or a circuit) configured in the terminal device. The network device shown in the following embodiments can also be replaced by a component (such as a chip or a circuit) configured in the network device.

[0134] The embodiments shown below do not particularly limit the specific structure of the execution subject of the method provided by the embodiments of the present application, as long as it can communicate according to the method provided by the embodiments of the present application by running the program in which the code of the method provided by the embodiments of the present application is recorded. For example, the execution subject of the method provided by the embodiments of the present application can be a terminal device or a network device, or a functional module in the terminal device or the network device that can call and execute the program.

[0135] Figure 3 The method 300 provided by the embodiments of the present application is a schematic flowchart of the resource configuration method 300 from the perspective of the interaction between the network device and the terminal device. The method 300 can be applied to the communication architecture shown in Figure 1 , Figure 2 . As shown in Figure 3 , the method 300 includes the following steps:

[0136] S301, the network device determines first information, the first information is used to indicate a first physical random access channel (PRACH) resource, there is a first mapping relationship between the first PRACH resource and a synchronization signal block (SSB), and the first PRACH resource is a resource available to a first type of terminal device.

[0137] S302, the network device determines second information, the second information is used to indicate a second PRACH resource, there is a second mapping relationship between the second PRACH resource and the SSB, the second PRACH resource is a resource available to both the first type of terminal device and a second type of terminal device, and the first type of terminal device and the second type of terminal device have different capabilities.

[0138] S303, the network device transmits the first information and the second information; correspondingly, the first terminal device receives the first information and the second information.

[0139] S304, the first terminal device transmits data based on the first PRACH resource and / or the second PRACH resource.

[0140] Optionally, the first type of terminal device can be a terminal device with network energy saving (NES) capability, supporting a R19 communication standard and a communication standard after R19, and can be a device that supports energy saving optimization of the network device under specific conditions, for example, can support a more flexible sleep mode, adaptive power transmission, etc.; the second type of terminal device can be a terminal device supporting a communication standard before R19, also known as a legacy UE or inventory terminal device, etc., but the present application does not make a specific limitation thereon.

[0141] Optionally, the first terminal device can belong to the first type of terminal device or the second type of terminal device, and the present application does not make a specific limitation thereon. In some implementations, the first type of terminal device can have the capability of the second type of terminal device.

[0142] The method provided in the embodiments of the present application indicates the first PRACH resource for the first type of terminal device on the basis that the network device indicates the second PRACH resource for the first type of terminal device and the second type of terminal device, and indicates that the SSB beam transmitted by the network device has a first mapping relationship with the first PRACH resource and a second mapping relationship with the second PRACH resource. Based on the mapping relationship, the first terminal device can select the available resource to send uplink data after receiving the first information and the second information. The method provided in the embodiments of the present application gives the first mapping relationship between the SSB and the first PRACH resource, provides a possible implementation manner for using the first PRACH resource, and if the first terminal device is a UE with NES capability, the first terminal device can send uplink data on the first PRACH resource, and if the first terminal device is a legacy UE, the first terminal device can still send uplink data on the second PRACH resource, which does not affect the normal work of the second type of terminal device. At the same time, the network device can use the capability of the first type of terminal device to improve energy saving gain and reduce energy consumption.

[0143] Further, in the embodiments of the present application, the network device can not reselect the time domain format of the PRACH resource by adjusting the SIB, but can newly indicate a part of the resource on the basis of the existing configuration, which is conducive to avoiding greater energy consumption caused by completely updating the existing SIB configuration.

[0144] In some implementations, the first information can be carried by an information element with an R19 identifier, so that the first type of terminal device can identify the information and the second type of terminal device does not have the capability to identify the information, so that the first PRACH resource can be indicated to the first type of terminal device.

[0145] As an optional embodiment, the first information can be sent in one or more of the following messages: system information SI, radio resource control protocol RRC, media access control control element (MAC control element, MAC CE), or downlink control information (downlink control information, DCI), but the present application does not limit this. In some implementations, the first information is sent through system information, which is conducive to selecting the resource to initiate random access by the terminal device that has not accessed the network, and any of RRC, MAC CE or DCI is sent, which is conducive to shortening the resource indication period and improving resource configuration efficiency.

[0146] Optionally, the network device can include the information element with the R19 identifier in the system information, RRC, MAC CE or DCI for sending, so that the first type of terminal device can identify, but the present application does not limit this.

[0147] Optionally, the system information can include one or more of MIB, SIB1, SIB2, SIB3, SIB4, SIB5, SIB6, SIB7, SIB8, SIB9, SIB10, SIB11, SIB12, or SIB13, and other system information blocks, which are not limited in the present application.

[0148] Optionally, the first information and the second information can be carried by the same type of message, or can be carried by different types of messages. The network device can send the first information and the second information at the same time, or can send the first information and the second information at different times, which are not limited in the present application.

[0149] As an optional embodiment, the first PRACH resource is dynamically changed in the time domain, and the time domain position of the first PRACH resource after the dynamic change is indicated in the system information, RRC, MAC CE, or DCI. The network device can adjust the access time of the terminal device by adjusting the indicated position of the first PRACH resource in the time domain, and the network device can concentrate data transmission in a part of the time period, so as to save the energy consumption of the network device.

[0150] In a possible implementation, the first PRACH resource and the second PRACH resource can correspond to different PRACH resource format indexes respectively. Different PRACH resource format indexes can be indicated to the same subframe (SF), or can be indicated to different subframes. Further, the configuration periods of the first PRACH resource and the second PRACH resource can be the same or different.

[0151] The possible time domain positions of the first PRACH resource and the possible time domain positions of the second PRACH resource are described below in combination with specific examples.

[0152] Figure 4 An example is shown for the case that the configuration periods of the first PRACH resource and the second PRACH resource are different, but the indicated subframe positions in the configuration periods are the same. Figure 4 The case that the resource configuration index number of the second PRACH resource is 3 (PRACH config index 3) and the resource configuration index number of the first PRACH resource is 7 (PRACH config index 7) is taken as an example for description.

[0153] As shown in FIG. 6, the first PRACH resource and the second PRACH resource are configured in the time domain. Figure 4 As shown in FIG. 6, the first PRACH resource and the second PRACH resource are configured in the time domain. Figure 4The horizontal side of each small box can represent the length of a subframe, i.e. 1 millisecond, and the configuration period of the second PRACH resource is 20 milliseconds (20ms PRACH config period), and the time domain position of the second PRACH resource is the next subframe of the 9th subframe (RO in SF 9) in each 20ms period. Figure 4 In the example of FIG. 6, the configuration period of the second PRACH resource is exemplarily shown as 2; the configuration period of the first PRACH resource is 10 milliseconds (10ms PRACH config period), and the time domain position of the first PRACH resource is the next subframe of the 9th subframe (RO in SF 9) in each 10ms period. Exemplarily, if the subframe index is numbered from 0, SF 9 can also be understood as the subframe with index number 9, and the similar description below is also the same, and will not be repeated here. Figure 4 In the example of FIG. 6, the configuration period of the second PRACH resource is exemplarily shown as 2; the configuration period of the first PRACH resource is 10 milliseconds (10ms PRACH config period), and the time domain position of the first PRACH resource is the next subframe of the 9th subframe (RO in SF 9) in each 10ms period. Exemplarily, if the subframe index is numbered from 0, SF 9 can also be understood as the subframe with index number 9, and the similar description below is also the same, and will not be repeated here.

[0154] It should be understood that, Figure 4 The first PRACH resource and the second PRACH resource in FIG. 6 can occupy the same frequency band in the frequency domain, and the first PRACH resource and the second PRACH resource in FIG. 6 can be understood as the same PRACH resource. Figure 4 In FIG. 6, the first PRACH resource and the second PRACH resource are drawn separately only for the purpose of distinguishing, and cannot constitute a specific limitation to the present application.

[0155] It can be seen that the first PRACH resource and the second PRACH resource both indicate the next subframe of the 9th subframe in the respective configuration period, but because the configuration period of the first PRACH resource is smaller than the configuration period of the second PRACH resource, the configuration density of the first PRACH resource is also greater than the configuration density of the second PRACH resource. Exemplarily, only taking the resources shown in FIG. 6 as an example, the second PRACH resource includes the subframes corresponding to 401 and 402, and the first PRACH resource includes the subframes corresponding to 401, 402, 403 and 404. Figure 4 In the example of FIG. 6, the second PRACH resource includes the subframes corresponding to 401 and 402, and the first PRACH resource includes the subframes corresponding to 401, 402, 403 and 404.

[0156] Further, referring to FIG. 7, Figure 4 It can be seen that the first PRACH resource includes the second PRACH resource (or it can also be understood that the first PRACH resource and the second PRACH resource overlap), and the first PRACH resource further includes a third PRACH resource compared with the second PRACH resource (which can be the resource configured to the ledacy terminal device), and the third PRACH resource is the resource left after excluding the second PRACH resource from the first PRACH resource, and the third PRACH resource can also be understood as the resource newly added to the first PRACH resource in the new subframe relative to the second PRACH resource, and the third PRACH resource can be, for example,Figure 4 The resources for the subframes corresponding to 403 and 404 are shown in the figure.

[0157] It should also be understood that, Figure 4 The image only shows a portion of the time domain location of the first PRACH resource and a portion of the time domain location of the second PRACH resource. In longer or shorter time domain intervals, the PRACH resource with resource configuration index number 3 belongs to the second PRACH resource, and the PRACH resource with resource configuration index number 7 also belongs to the first PRACH resource.

[0158] Figure 5 An example is shown where the first PRACH resource and the second PRACH resource have the same configuration period but the subframe positions indicated within the configuration period are the same, and the possible temporal positions of the first PRACH resource and the second PRACH resource are illustrated. Figure 5 This explanation is based on the example of the resource configuration index number of the second PRACH resource being 192 (PRACH config index 192) and the resource configuration index number of the first PRACH resource being 196 (PRACH config index 196).

[0159] like Figure 5 As shown, Figure 5 Each small square in the middle can represent the length of a subframe, i.e., 1 millisecond. The configuration period of the second PRACH resource is 20 milliseconds (20ms PRACH config period). The temporal position of the second PRACH resource is the subframe following the 9th subframe (RO in SF 9) within each 20ms period. Figure 5 The example illustrates the configuration period of two second PRACH resources; the configuration period of the first PRACH resource is 20 milliseconds (20ms PRACH configperiod), and the temporal position of the first PRACH resource is in the next subframe of the fourth subframe and the next subframe of the ninth subframe within each 20ms period (RO in SF 4,9). Figure 5 The example illustrates the configuration cycle of two first PRACH resources.

[0160] It should be understood that Figure 5 The first PRACH resource and the second PRACH resource can occupy the same frequency band in the frequency domain. Figure 5 The first PRACH resource and the second PRACH resource are drawn separately for ease of distinction and do not constitute a specific limitation on this application.

[0161] It can be seen that the configuration period of the first PRACH resource and the second PRACH resource is the same, but because only one subframe position is indicated in the configuration period of the second PRACH resource, and two subframe positions are indicated in the configuration period of the first PRACH resource, the configuration density of the first PRACH resource is greater than that of the second PRACH resource. Exemplarily, only the resources shown in Figure 5 It can be seen that the second PRACH resource includes the 501 corresponding subframe and the 502 corresponding subframe, and the first PRACH resource includes the 501 corresponding subframe, the 502 corresponding subframe, the 503 corresponding subframe and the 504 corresponding subframe.

[0162] Further, with reference to Figure 5 It can be seen that the first PRACH resource includes the second PRACH resource (or it can also be understood that the first PRACH resource and the second PRACH resource overlap), and compared with the second PRACH resource, the first PRACH resource further includes the third PRACH resource, the third PRACH resource is the resource left after excluding the second PRACH resource in the first PRACH resource, the third PRACH resource can also be understood as the resource newly added by the first PRACH resource on the subframe relative to the second PRACH resource, and the third PRACH resource may be, for example, the resource of the 503 corresponding subframe and the 504 corresponding subframe shown in Figure 5

[0163] It should also be understood that Figure 5 Only part of the time domain position of the first PRACH resource and part of the time domain position of the second PRACH resource are shown in

[0164] It can be seen from the above Figure 4 and Figure 5 It can be seen that no matter whether the configuration period of the first PRACH resource and the second PRACH resource is the same, or whether the subframe positions indicated in the respective configuration period of the first PRACH resource and the second PRACH resource are the same, the first PRACH resource may include the second PRACH resource.

[0165] Optionally, the above resource configuration index can be taken from table 6.3.3.2-3 in 38.211 for random access configurations for FR1 and unpaired spectrum, which is not limited in the present application.​

[0166] Next, for the case that the first PRACH resource includes the second PRACH resource, the above description is combined with the above Figure 4 Taking the number of SSBs included by the network device as M, the indexes of the M SSBs as integers from 0 to M-1, and the mapping manner of the M SSBs on the first PRACH resource is described, where M is an integer greater than 1.

[0167] In a possible implementation, in order to reduce the change of the resource already configured for the second type of terminal device as much as possible, regardless of the mapping of the first PRACH, the SSBs are mapped to the second PRACH resource in the order of the index number from small to large. In the case that the first PRACH resource includes the second PRACH resource, the mapping manner of the SSBs on the second PRACH resource can be the same as the existing manner, that is, the M SSBs are mapped to the second PRACH resource in the order of the index number from small to large, which is also conducive to saving network energy consumption.

[0168] Then, it can be understood that, for the first mapping relationship, what is needed at present is the mapping manner of the M SSBs on the third PRACH resource, that is, the additional resource of the first PRACH resource relative to the second PRACH resource on the new subframe. It can include the following five implementation manners.

[0169] It should be understood that, for the Figure 5 The possible time domain positions of the first PRACH resource and the second PRACH resource shown in FIG. 5, in the case that the first PRACH resource includes the second PRACH resource, the SSB mapping manner of the third PRACH resource is similar to that described in combination with Figure 4 It is needless to say, and subsequent description will not be repeated for Figure 5 .

[0170] Manner 1: The M SSBs are mapped to the third PRACH resource in the order of the index number (for example, from SSB M-1 to SSB 0) from large to small.

[0171] In this manner, in an association period of the second PRACH resource, the third PRACH resource can first map the beam with the largest index of the SSB, for example, SSB M-1, and then, in the order of the SSB index number in the decreasing manner, until SSB 0 is mapped.

[0172] If the configuration period of the second PRACH resource is less than the association period of the second PRACH resource, for example, the above Figure 4The configuration period of the second PRACH resource is 20 ms, the associated period of the second PRACH resource is 40 ms, and the mapping order of the eight SSBs on the second PRACH resource and the mapping order of the eight SSBs on the third PRACH resource can be as shown in the following table. Figure 6

[0173] As shown in the following table, Figure 6 The eight SSBs can be completely mapped by the resources corresponding to two second PRACH resource configuration periods, and the number of second PRACH resource configuration periods required for mapping all SSBs is not limited in the present application.

[0174] Optionally, in the second mapping relationship, the eight SSBs can be sequentially and evenly mapped in the order of increasing index number to the resources corresponding to two second PRACH resource configuration periods. The second PRACH resource corresponding to the first second PRACH resource configuration period is the 401 corresponding area, and SSB 0-SSB 3 can be sequentially mapped. The second PRACH resource corresponding to the second second PRACH resource configuration period is the 402 corresponding area, and SSB 4-SSB 7 can be sequentially mapped. All SSBs can be mapped within one associated period of the second PRACH.

[0175] In the embodiment of the present application, the mapping relationship between the second PRACH resource included in the first PRACH resource and the SSB can also be as follows. In the 401 corresponding area in the configuration period of the first first PRACH resource, SSB 0-SSB 3 can be sequentially mapped. In the 402 corresponding area in the configuration period of the third first PRACH resource, SSB 4-SSB 7 can be sequentially mapped. Optionally, this part of the mapping relationship can be included in the first mapping relationship in the same mapping manner, or it can not be repeatedly described in the first mapping relationship. It is only necessary to indicate that the mapping relationship between the second PRACH resource included in the first PRACH resource and the SSB is the same as or similar to the mapping manner described in the second mapping relationship, and the present application does not limit this.

[0176] In addition, for the third PRACH resource included in the configuration period of the second first PRACH resource, SSB 7-SSB 4 can be sequentially mapped in the 403 corresponding area. For the third PRACH resource included in the configuration period of the third first PRACH resource, SSB 3-SSB 0 can be sequentially mapped in the 404 corresponding area. In this way, all SSBs can also be mapped within one associated period of the first PRACH resource, and the SSBs are sequentially mapped in the third PRACH resource in the order of decreasing index number, which is also conducive to shortening the time for the terminal device to obtain the resources indicated by all SSBs and reducing the access delay of the terminal device. ​

[0177] In the case that the configuration period of the second PRACH resource is equal to the association period of the second PRACH resource, i.e., all SSBs can be completely mapped in each configuration period, M SSBs can still be mapped to the third PRACH resource in the order of index number from large to small (for example, in the order of SSB M-1 ~ SSB 0). Unlike the case that the configuration period of the second PRACH resource is less than the association period of the second PRACH resource, in this case, the third PRACH in each configuration period can completely map all SSBs. Taking M = 8 as an example, in the case that the configuration period of the second PRACH resource is equal to the association period of the second PRACH resource, the mapping order of SSBs on the second PRACH resource can be as shown in FIG. 6. Figure 4 The mapping order of SSBs on the third PRACH resource can be as shown in FIG. 7. Figure 7 The mapping order of SSBs on the third PRACH resource can be as shown in FIG. 7.

[0178] In the case that the configuration period of the second PRACH resource is equal to the association period of the second PRACH resource, i.e., all SSBs can be completely mapped in each configuration period, M SSBs can still be mapped to the third PRACH resource in the order of index number from large to small (for example, in the order of SSB M-1 ~ SSB 0). Unlike the case that the configuration period of the second PRACH resource is less than the association period of the second PRACH resource, in this case, the third PRACH in each configuration period can completely map all SSBs. Taking M = 8 as an example, in the case that the configuration period of the second PRACH resource is equal to the association period of the second PRACH resource, the mapping order of SSBs on the second PRACH resource can be as shown in FIG. 6.

[0179] In this way, in an association period, the third PRACH resource can first map the beam with the smallest index of SSB, for example, SSB 0, and then map in turn according to the increasing rule of SSB index number, until SSB M-1 is mapped.

[0180] In the case that the configuration period of the second PRACH resource is less than the association period of the second PRACH resource, for example, the configuration period of the second PRACH resource is 20 ms and the association period of the second PRACH resource is 40 ms as shown in FIG. 5, taking M = 8 as an example, the mapping order of 8 SSBs on the second PRACH resource and the mapping order of 8 SSBs on the third PRACH resource can be as shown in FIG. 6. Figure 4 The mapping order of SSBs on the third PRACH resource can be as shown in FIG. 7. Figure 8 The mapping order of SSBs on the third PRACH resource can be as shown in FIG. 7.

[0181] Figure 8 The description of the 401 corresponding area and the 402 corresponding area in the above-mentioned Figure 6 The description of the 401 corresponding area and the 402 corresponding area in the above-mentioned

[0182] In this way, for the third PRACH resource included in the second configuration period of the first PRACH resource, SSB 0 ~ SSB 3 can be mapped in turn, and for the third PRACH resource included in the third configuration period of the first PRACH resource, SSB 4 ~ SSB 7 can be mapped in turn.

[0183] In a case where the configuration period of the second PRACH resource is equal to the association period of the second PRACH resource, that is, all SSBs can be completely mapped in each configuration period, M SSBs can still be mapped to the third PRACH resource in the order of the index number from large to small (for example, in the order of SSB 0 to SSB M-1). Unlike the case where the configuration period of the second PRACH resource is less than the association period of the second PRACH resource, in this case, the third PRACH in each configuration period can completely map all SSBs. Taking M=8 as an example, in a case where the configuration period of the second PRACH resource is equal to the association period of the second PRACH resource, the mapping order of SSBs on the resource shown in FIG. 8 can be as shown in FIG. 9. Figure 4 Figure 9

[0184] Alternatively, the mapping in the order of the index number from small to large can also be understood as sequential mapping, and the mapping in the order of the index number from large to small can also be understood as reverse sequential mapping, but the application does not limit whether the mapping order is sequential or reverse.

[0185] Method 3: The configuration period of the second PRACH resource is less than the association period of the second PRACH resource, the number of configuration periods is N, the number of SSBs is M, the index numbers of the SSBs are integers from 0 to M-1, in the first configuration period of the second PRACH resource, SSBs with index numbers from 0 to K are sequentially mapped to the second PRACH resource corresponding to the first configuration period in the order of the index number from small to large, then in the first mapping relationship, M SSBs are sequentially mapped from small to large starting from the SSB with the index number K, until the SSB with the index number M-1 is mapped, and then the SSB with the index number 0 is sequentially mapped from small to large to the third PRACH resource, N and M are integers greater than 1, and K is an integer greater than 0 and less than M-1.

[0186] In this way, in an association period, the third PRACH resource starts to associate from the SSB that has not been associated by the second PRACH resource. For example, M=8 and K=3, in the first configuration period of the second PRACH resource, SSBs with index numbers from 0 to 3 have been mapped, then the third PRACH resource can start from SSB 4, sequentially map SSBs 4 to 7, and then sequentially map SSBs from 0 in the order of the index number from small to large.

[0187] The above Figure 4 ​​The mapping order of 8 SSBs on the second PRACH resource and the mapping order of 8 SSBs on the third PRACH resource can be as shown in the table. Figure 10 Figure 10 The description of the 401 corresponding area and the 402 corresponding area in the second PRACH resource is similar to the description of the 401 corresponding area and the 402 corresponding area in the first PRACH resource, which will not be repeated here. Figure 6 The description of the 401 corresponding area and the 402 corresponding area in the second PRACH resource is similar to the description of the 401 corresponding area and the 402 corresponding area in the first PRACH resource, which will not be repeated here.

[0188] As shown in the table, for the third PRACH resource included in the second configuration period of the second first PRACH resource, the 403 corresponding area can be mapped in sequence from SSB 4 to SSB 7, which has not been mapped from the 401 corresponding area. For the third PRACH resource included in the third configuration period of the second first PRACH resource, the 404 corresponding area can be mapped from SSB 0 to SSB 3 in ascending order, which starts from the beginning. Figure 10

[0189] It should be understood that in the case where the configuration period of the second PRACH resource is less than the associated period of the second PRACH resource, Figure 4 The number of configuration periods of the second PRACH resource contained in the associated period of the second PRACH shown in the table is only exemplary, and the number of SSBs that can be mapped in the resource corresponding to each configuration period of the second PRACH resource described above is also exemplary. In the resource index shown in the table, Figure 4 The associated period of the second PRACH can contain a larger number of configuration periods of the second PRACH resource, and the number of SSBs that can be mapped in the resource corresponding to each configuration period of the second PRACH resource can also be more or less, which is not limited by the present application.

[0190] ​​In an example, the associated period of the second PRACH can include 4 configuration periods of the second PRACH resource, and the number of SSBs that can be mapped in each configuration period of the second PRACH resource can also be 2. Thus, SSB 0-SSB 1 can be sequentially mapped in the first configuration period of the second PRACH resource, SSB 2-SSB 3 can be sequentially mapped in the second configuration period of the second PRACH resource, SSB 4-SSB 5 can be sequentially mapped in the third configuration period of the second PRACH resource, and SSB 6-SSB 7 can be sequentially mapped in the fourth configuration period of the second PRACH resource. In addition, in the embodiments of the present application, since the second PRACH resource included in the first configuration period of the first PRACH resource has the above mapping relationship (SSB 0-SSB 1 are sequentially mapped), the third PRACH resource included in the second configuration period of the first PRACH resource can sequentially map SSB 2-SSB 3 from SSB 2 that has not been mapped by the second PRACH resource at this time, the third PRACH resource included in the third configuration period of the first PRACH resource continues to map the next index of the SSB mapped by the third PRACH resource included in the second configuration period of the first PRACH resource, that is, sequentially maps SSB 4-SSB 5, and the like.

[0191] The method provided by the embodiments of the present application sequentially maps the first SSB that is not mapped in the first configuration period of the second PRACH resource as the start of the third PRACH resource, and continues to sequentially map from small to large, until the SSB corresponding to the maximum index number is mapped, and then maps from SSB 0 until all SSB beams are traversed. In this way, compared with the way of only indicating the second PRACH resource, on the basis of adding the third PRACH resource, the first type of terminal device can receive the resource that can form a complete PRACH associated with all SSB beams more quickly, which is beneficial to reducing the access delay of the first type of terminal device.

[0192] Method 4: The third PRACH resource can only map preset SSBs, the preset SSBs are a part of the M SSBs, regardless of the relationship between the configuration period of the second PRACH resource and the associated period of the second PRACH resource, the preset SSBs can be sequentially mapped onto the third PRACH resource in the order from large to small according to the index number, or can be sequentially mapped onto the third PRACH resource in the order from small to large according to the index number, or can be mapped onto the third PRACH resource in any specified order, which is not limited by the present application.

[0193] Optionally, the preset SSB can be a beam with more than a certain threshold of access terminal devices. This can be understood as a beam with a large number of terminal devices or a large number of users, but this application does not make any specific limitation on this.

[0194] In one example, the preset SSB can be SSB 0, SSB 2, SSB 4, and SSB 6, as described above. Figure 4 The diagram shows that the configuration period for the second PRACH resource is 20ms, and the association period for the second PRACH resource is 40ms. Still using M=8 as an example, the mapping order of the 8 SSBs on the second PRACH resource and the mapping order of SSB 0, SSB 2, SSB 4, and SSB 6 on the third PRACH resource can be shown as follows: Figure 11 As shown.

[0195] Figure 11 The descriptions of the regions corresponding to 401 and 402 in the text can be compared with those above. Figure 6 The descriptions of the regions corresponding to 401 and 402 are similar, so they will not be repeated here.

[0196] like Figure 11 As shown, the third PRACH resource included in the configuration cycle of the second first PRACH resource is the area corresponding to 403, which can be mapped to SSB 0, SSB 2, SSB 4, and SSB 6 in sequence. Similarly, the third PRACH resource included in the configuration cycle of the fourth first PRACH resource is the area corresponding to 404, which can also be mapped to SSB 0, SSB 2, SSB 4, and SSB 6 in sequence.

[0197] In another example, when the configuration period of the second PRACH resource equals its association period (meaning all SSBs can be fully mapped within each configuration period), the default SSBs can still be mapped to the third PRACH resource sequentially based on their index numbers, either in descending or ascending order. In this case, although the third PRACH resource is sufficient to map all SSBs within each configuration period, it only maps the default SSBs. For example, with M=8, when the configuration period of the second PRACH resource equals its association period, the default SSBs... Figure 4 The mapping order on the resources shown can be as follows Figure 12 As shown.

[0198] like Figure 12As shown, 401 can represent the second PRACH resource corresponding to the configuration period of the first second PRACH resource, and also the second PRACH resource corresponding to the configuration period of the first first PRACH resource (a part of the first PRACH resource), which can be sequentially mapped to SSB 0~SSB 7 in order of index number from small to large; 402 can represent the third PRACH resource (a part of the first PRACH resource) included in the configuration period of the second first PRACH resource, which can be sequentially mapped to SSB 0, SSB 2, SSB 4, SSB 6; 403 can represent the second PRACH resource corresponding to the configuration period of the second second PRACH resource, and also the second PRACH resource corresponding to the configuration period of the third first PRACH resource (a part of the first PRACH resource), which can be sequentially mapped to SSB 0~SSB 7 in order of index number from small to large; 404 can represent the third PRACH resource included in the configuration period of the fourth first PRACH resource, which can also be sequentially mapped to SSB 0, SSB 2, SSB 4 and SSB 6.

[0199] The method provided by the embodiments of the present application can be used to map the third PRACH resource for the SSB beam with a large number of accessed terminal devices, and since the third PRACH resource is the resource newly added to the first PRACH resource relative to the second PRACH resource in a new subframe, only the preset SSB is mapped on this part of resource, which can allocate more resources for the SSB beam with a large number of terminal devices, and is beneficial to improving the communication efficiency of the terminal devices.

[0200] Optionally, SSB 0, SSB 2, SSB 4 and SSB 6 can also be mapped in order of index number from large to small, which is not limited in the present application.

[0201] Optionally, the mapping manner of the SSB on the third PRACH resource in the association period of the second PRACH resource with an odd index number is different from the mapping manner of the SSB on the third PRACH resource in the association period of the second PRACH resource with an even index number.

[0202] In some examples, in the first mapping relationship, in the association period of the second PRACH resource with an odd index number, the SSB is sequentially mapped to the third PRACH resource in order of index number from large to small, and in the association period of the second PRACH resource with an even index number, the SSB is sequentially mapped to the third PRACH resource in order of index number from small to large.

[0203] Optionally, still taking the above Figure 4The configuration period of the second PRACH resource is 20 ms, the associated period of the second PRACH resource is 40 ms, and still taking M = 8 as an example, in the associated period of the second PRACH resource with an odd index number, the mapping order of the 8 SSB second PRACH resources and the mapping order of the 8 SSBs on the third PRACH resource can be as shown in FIG. 4B, and in the associated period of the second PRACH resource with an even index number, the mapping order of the 8 SSB second PRACH resources and the mapping order of the 8 SSBs on the third PRACH resource can be as shown in FIG. 4C. Wherein, 401 and 402 can represent the second PRACH resource, and 403 and 404 can represent the third PRACH resource. Figure 6 Figure 8

[0204] In some examples, in the associated period of the second PRACH resource with an odd index number, the SSBs are mapped to the third PRACH resource in the order of the index number from small to large, and in the associated period of the second PRACH resource with an even index number, the SSBs are mapped to the third PRACH resource in the order of the index number from large to small.

[0205] Optionally, still taking the second PRACH resource configuration period of 20 ms and the second PRACH resource associated period of 40 ms as shown in the above Figure 4 , still taking M = 8 as an example, in the associated period of the second PRACH resource with an even index number, the mapping order of the 8 SSB second PRACH resources and the mapping order of the 8 SSBs on the third PRACH resource can be as shown in FIG. 4C, and in the associated period of the second PRACH resource with an odd index number, the mapping order of the 8 SSB second PRACH resources and the mapping order of the 8 SSBs on the third PRACH resource can be as shown in FIG. 4B. Wherein, 401 and 402 can represent the second PRACH resource, and 403 and 404 can represent the third PRACH resource. Figure 6 Figure 8

[0206] In some implementations, the associated period of the second PRACH resource with an index of 0 is the first associated period of the second PRACH resource.

[0207] The first mapping relationship in the case where the first PRACH resource includes the second PRACH resource is described in detail above, and the first mapping relationship in the case where the first PRACH resource does not include the second PRACH resource is described below. Figure 4 to Figure 11

[0208] ​​​​​It should be understood that the first PRACH resource is independent of the second PRACH resource in the time domain without the first PRACH resource including the second PRACH resource. In the case that the first PRACH resource does not include the second PRACH resource, the first mapping relationship can be implemented in the following five ways.

[0209] Optionally, in the case that the first PRACH resource does not include the second PRACH resource, the mapping manner of the SSBs on the second PRACH resource can also be the same as the existing manner, that is, the M SSBs are sequentially mapped to the second PRACH resource according to the order from small to large index number, which is also conducive to saving network energy consumption.

[0210] Way one: In the first mapping relationship, the M SSBs can be sequentially mapped to the first PRACH resource according to the order from large to small index number.

[0211] In the case that the configuration period of the second PRACH resource is less than the associated period of the second PRACH resource, taking the associated period of the second PRACH resource including two second PRACH resource configuration periods and the number of SSBs being 8 as an example, the mapping manner of the 8 SSBs in the associated period of the second PRACH resource on the first PRACH resource and the second PRACH resource can refer to Figure 6 In the implementation of this way one, Figure 6 401 in the table shown in the above embodiment can represent the second PRACH resource corresponding to the first second PRACH resource configuration period, 402 can represent the second PRACH resource corresponding to the second second PRACH resource configuration period, 403 can represent the first PRACH resource corresponding to the first first PRACH resource configuration period, and 402 can represent the first PRACH resource corresponding to the second first PRACH resource configuration period.

[0212] In the case that the configuration period of the second PRACH resource is equal to the associated period of the second PRACH resource, taking the number of SSBs being 8 as an example, the mapping manner of the 8 SSBs in the associated period of the two second PRACH resources (that is, the configuration period of the two second PRACH resources) on the first PRACH resource and the second PRACH resource can refer to Figure 7 In the implementation of this way one, Figure 7 401 in the table shown in the above embodiment can represent the second PRACH resource corresponding to the first second PRACH resource configuration period, 402 can represent the second PRACH resource corresponding to the second second PRACH resource configuration period, 403 can represent the first PRACH resource corresponding to the first first PRACH resource configuration period, and 402 can represent the first PRACH resource corresponding to the second first PRACH resource configuration period.

[0213] The method provided by the embodiments of the present application is beneficial to the first type of terminal device to receive the resource capable of forming a complete PRACH associated with all SSB beams more quickly, and is beneficial to reducing the access delay of the first type of terminal device.

[0214] The second mapping relationship is: the M SSBs are sequentially mapped onto the first PRACH resource in the order of the index number from small to large.

[0215] In the case where the configuration period of the second PRACH resource is less than the association period of the second PRACH resource, taking the association period of the second PRACH resource including two configuration periods of the second PRACH resource and the number of SSBs being 8 as an example, the mapping manner of the 8 SSBs in the association period of the second PRACH resource on the first PRACH resource and the second PRACH resource can refer to the mapping manner shown in the first mapping relationship in the first aspect of the present application. Figure 8 In the implementation of the second mapping relationship, Figure 8 401 in the first mapping relationship in the first aspect of the present application can represent the second PRACH resource corresponding to the first second PRACH resource configuration period, 402 can represent the second PRACH resource corresponding to the second second PRACH resource configuration period, 403 can represent the first PRACH resource corresponding to the first first PRACH resource configuration period, and 402 can represent the first PRACH resource corresponding to the second first PRACH resource configuration period.

[0216] In the case where the configuration period of the second PRACH resource is equal to the association period of the second PRACH resource, taking the number of SSBs being 8 as an example, the mapping manner of the 8 SSBs in the association period of the two second PRACH resources (that is, the configuration period of the two second PRACH resources) on the first PRACH resource and the second PRACH resource can refer to the mapping manner shown in the first mapping relationship in the first aspect of the present application. Figure 9 In the implementation of the second mapping relationship, 401 in the first mapping relationship in the first aspect of the present application can represent the second PRACH resource corresponding to the first second PRACH resource configuration period, 402 can represent the second PRACH resource corresponding to the second second PRACH resource configuration period, 403 can represent the first PRACH resource corresponding to the first first PRACH resource configuration period, and 402 can represent the first PRACH resource corresponding to the second first PRACH resource configuration period.

[0217] The third mode: the first PRACH resource does not include the second PRACH resource, the configuration period of the second PRACH resource is less than the associated period of the second PRACH resource, the number of the configuration period is N, the number of the SSB is M, the index number of the SSB is an integer from 0 to M-1 in turn, in the first configuration period of the second PRACH resource, the SSB with the index number from 0 to K is mapped to the second PRACH resource corresponding to the first configuration period in the order from small to large, then in the first mapping relationship, the SSB is mapped from the SSB with the index number K in the order from small to large, until the SSB with the index number M-1 is mapped, and then the SSB with the index number 0 is mapped in the order from small to large to the third PRACH resource, N and M are integers greater than 1, and K is an integer greater than 0 and less than M-1.

[0218] In the case that the configuration period of the second PRACH resource is less than the associated period of the second PRACH resource, taking the associated period of the second PRACH resource including two configuration periods of the second PRACH resource and the number of the SSB being 8 as an example, the mapping mode of the 8 SSBs in the associated period of the second PRACH resource on the first PRACH resource and the second PRACH resource can be referred to Figure 10 In the implementation of the third mode, Figure 10 401 shown in the first configuration period of the second PRACH resource can represent the second PRACH resource corresponding to the second PRACH resource, 402 can represent the second second PRACH resource corresponding to the second PRACH resource, 403 can represent the first first PRACH resource corresponding to the first PRACH resource, and 402 can represent the second first PRACH resource corresponding to the first PRACH resource.

[0219] The method provided by the embodiment of the application, the first PRACH resource takes the first SSB not mapped in the first configuration period of the second PRACH resource as the start, and continues to map in the order from small to large, until the SSB corresponding to the maximum index number is mapped, and then the SSB 0 is mapped, until all SSB beams are traversed. In this way, on the basis of the second PRACH resource mapping a part of the SSB, the subsequent SSB is continuously mapped, so that the first type of terminal device can receive the PRACH resource capable of forming a complete associated SSB beam more quickly, which is beneficial to reducing the access delay of the first type of terminal device.

[0220] The fourth mode: the first PRACH resource does not include the second PRACH resource, in the first mapping relationship, the preset SSB is sequentially mapped onto the first PRACH resource according to the descending order of the index number, or the preset SSB is sequentially mapped onto the first PRACH resource according to the ascending order of the index number, and the preset SSB is a part of the SSB.

[0221] In the case where the configuration period of the second PRACH resource is less than the association period of the second PRACH resource, taking the association period of the second PRACH resource including two configuration periods of the second PRACH resource, the number of SSBs being eight, the preset SSBs being SSB0, SSB2, SSB4 and SSB6 as an example, the mapping manner of the SSBs on the first PRACH resource and the second PRACH resource in one association period of the second PRACH resource can refer to the mapping manner of the SSBs on the first PRACH resource and the second PRACH resource in one association period of the second PRACH resource in the first mode. Figure 11 In the implementation of the fourth mode, Figure 11 401 shown in the first mode can represent the second PRACH resource corresponding to the first second PRACH resource configuration period, 402 can represent the second PRACH resource corresponding to the second second PRACH resource configuration period, 403 can represent the first PRACH resource corresponding to the first first PRACH resource configuration period, and 402 can represent the first PRACH resource corresponding to the second first PRACH resource configuration period.

[0222] In the case where the configuration period of the second PRACH resource is equal to the association period of the second PRACH resource, taking the number of SSBs being eight, the preset SSBs being SSB0, SSB2, SSB4 and SSB6 as an example, the mapping manner of the SSBs on the first PRACH resource and the second PRACH resource in two association periods of the second PRACH resource can refer to the mapping manner of the SSBs on the first PRACH resource and the second PRACH resource in two association periods of the second PRACH resource in the second mode. Figure 12 In the implementation of the fourth mode, Figure 12 401 shown in the second mode can represent the second PRACH resource corresponding to the first second PRACH resource configuration period, 402 can represent the second PRACH resource corresponding to the second second PRACH resource configuration period, 403 can represent the first PRACH resource corresponding to the first first PRACH resource configuration period, and 402 can represent the first PRACH resource corresponding to the second first PRACH resource configuration period.

[0223] The method provided by the embodiments of the present application can map third PRACH resources for SSB beams with a larger number of terminal devices, because the third PRACH resources are resources newly added to the first PRACH resources relative to the second PRACH resources, and only the preset SSBs are mapped on the part of resources, which can allocate more resources for the SSB beams with a larger number of terminal devices, and is beneficial to improving the communication efficiency of the terminal devices.

[0224] Option 5: The number of the associated periods of the second PRACH resources is multiple, and the mapping manner of the SSBs on the first PRACH resources in the associated periods of the second PRACH resources with odd index numbers is different from the mapping manner of the SSBs on the first PRACH resources in the associated periods of the second PRACH resources with even index numbers.

[0225] In some examples, in the first mapping relationship, in the associated periods of the second PRACH resources with odd index numbers, the SSBs are mapped on the first PRACH resources in descending order of the index numbers, and in the associated periods of the second PRACH resources with even index numbers, the SSBs are mapped on the first PRACH resources in ascending order of the index numbers.

[0226] Optionally, still taking the configuration period of the second PRACH resources as 20 ms and the associated period of the second PRACH resources as 40 ms in the above Figure 4 mentioned example, still taking M=8 as an example, in the associated periods of the second PRACH resources with odd index numbers, the mapping order of the eight SSBs on the second PRACH resources and the mapping order of the eight SSBs on the first PRACH resources can be as shown in FIG. 4A, and in the associated periods of the second PRACH resources with even index numbers, the mapping order of the eight SSBs on the second PRACH resources and the mapping order of the eight SSBs on the first PRACH resources can be as shown in FIG. 4B. Figure 6 Figure 8 In the figures, 401 and 402 represent the second PRACH resources, and 403 and 404 represent the first PRACH resources.

[0227] In other examples, in the associated periods of the second PRACH resources with odd index numbers, the SSBs are mapped on the first PRACH resources in ascending order of the index numbers, and in the associated periods of the second PRACH resources with even index numbers, the SSBs are mapped on the first PRACH resources in descending order of the index numbers.

[0228] Optionally, still taking the configuration period of the second PRACH resources as 20 ms and the associated period of the second PRACH resources as 40 ms in the above Figure 4 ​The configuration period of the second PRACH resource is 20 ms, the associated period of the second PRACH resource is 40 ms, and still taking M = 8 as an example, in the associated period of the second PRACH resource with an even index number, the mapping order of the 8 SSB second PRACH resources and the mapping order of the 8 SSBs on the first PRACH resource can be as shown in FIG. 4A, and in the associated period of the second PRACH resource with an odd index number, the mapping order of the 8 SSB second PRACH resources and the mapping order of the 8 SSBs on the first PRACH resource can be as shown in FIG. 4B. Wherein, 401 and 402 represent the second PRACH resource, and 403 and 404 represent the first PRACH resource. Figure 8 Figure 8

[0229] In some implementations, the associated period of the second PRACH resource with an index of 0 is the first associated period of the second PRACH resource.

[0230] The resource configuration method of the embodiments of the present application is described in detail above in combination with Figure 4 to Figure 12 , and the communication device of the embodiments of the present application is described in detail below in combination with Figure 13 and Figure 14 The communication device includes modules or units for performing the corresponding parts of each of the above embodiments. The modules or units can be software, hardware, or a combination of software and hardware. The communication device is only briefly exemplified below, and for details of the implementation scheme, reference can be made to the description of the foregoing method embodiments, which will not be repeated here.

[0231] Figure 13 A structural schematic diagram of a communication device 1300 provided by the embodiments of the present application is shown in FIG. 13. As shown in FIG. 13, the device 1300 includes a processing module 1301 and a transceiver module 1302. Figure 13

[0232] In a possible implementation, the communication device 1300 is used to implement the steps corresponding to the network device in the above method 300.

[0233] The processing module 1301 is configured to determine first information, the first information being used to indicate a first physical random access channel (PRACH) resource, the first PRACH resource having a first mapping relationship with a synchronization signal block (SSB), and the first PRACH resource being a resource available to a first type of terminal device; and determine second information, the second information being used to indicate a second PRACH resource, the second PRACH resource having a second mapping relationship with the SSB, and the second PRACH resource being a resource available to both the first type of terminal device and a second type of terminal device, the first type of terminal device and the second type of terminal device having different capabilities.

[0234] ​​​The transceiver module 1302 is configured to transmit the first information and the second information.

[0235] Optionally, the first PRACH resource includes a second PRACH resource and a third PRACH resource, and the third PRACH resource is different from the time domain location of the second PRACH resource.

[0236] Optionally, in the first mapping relationship, the SSBs are sequentially mapped onto the third PRACH resource in descending order of the index numbers, or the SSBs are sequentially mapped onto the third PRACH resource in ascending order of the index numbers.

[0237] Optionally, in the first mapping relationship, the preset SSBs are sequentially mapped onto the third PRACH resource in descending order of the index numbers, or the preset SSBs are sequentially mapped onto the third PRACH resource in ascending order of the index numbers, and the preset SSBs are a part of the SSBs.

[0238] Optionally, a configuration period of the second PRACH resource is less than an association period of the second PRACH resource, the number of the configuration periods is N, the number of the SSBs is M, the index numbers of the SSBs are integers from 0 to M-1, in a first configuration period of the second PRACH resource, the SSBs with index numbers from 0 to K are sequentially mapped onto the second PRACH resource corresponding to the first configuration period in ascending order of the index numbers, N and M are integers greater than 1, and K is an integer greater than 0 and less than M-1; and in the first mapping relationship, the SSBs are sequentially mapped from the SSB with the index number K in ascending order until the SSB with the index number M-1 is mapped, and then the SSB with the index number 0 is sequentially mapped in ascending order onto the third PRACH resource.

[0239] Optionally, the number of the association periods of the second PRACH resource is multiple, in the first mapping relationship, in the association periods with odd index numbers, the SSBs are sequentially mapped onto the third PRACH resource in descending order of the index numbers, and in the association periods with even index numbers, the SSBs are sequentially mapped onto the third PRACH resource in ascending order of the index numbers; or in the association periods with odd index numbers, the SSBs are sequentially mapped onto the third PRACH resource in ascending order of the index numbers, and in the association periods with even index numbers, the SSBs are sequentially mapped onto the third PRACH resource in descending order of the index numbers.

[0240] Optionally, the first PRACH resource does not include the second PRACH resource.

[0241] Optionally, in the first mapping relationship, the SSBs are mapped onto the first PRACH resource in descending order of the index numbers, or the SSBs are mapped onto the first PRACH resource in ascending order of the index numbers.

[0242] Optionally, in the first mapping relationship, the preset SSBs are mapped onto the first PRACH resource in descending order of the index numbers, or the preset SSBs are mapped onto the first PRACH resource in ascending order of the index numbers, the preset SSBs being a part of the SSBs.

[0243] Optionally, a configuration period of the second PRACH resource is less than an association period of the second PRACH resource, the number of the configuration periods being N, the number of the SSBs being M, the index numbers of the SSBs being integers from 0 to M-1, in a first configuration period of the second PRACH resource, the SSBs with index numbers from 0 to K are mapped onto the second PRACH resource corresponding to the first configuration period in ascending order of the index numbers, N and M being integers greater than 1, and K being an integer greater than 0 and less than M-1; in the first mapping relationship, the SSBs are mapped onto the first PRACH resource in ascending order from the SSB with the index number K, until the SSB with the index number M-1 is mapped, and then the SSB with the index number 0 is mapped in ascending order.

[0244] Optionally, the number of the association periods of the second PRACH resource is multiple, in the first mapping relationship, in the association periods with odd index numbers, the SSBs are mapped onto the first PRACH resource in descending order of the index numbers, and in the association periods with even index numbers, the SSBs are mapped onto the first PRACH resource in ascending order of the index numbers; or, in the association periods with odd index numbers, the SSBs are mapped onto the first PRACH resource in ascending order of the index numbers, and in the association periods with even index numbers, the SSBs are mapped onto the first PRACH resource in descending order of the index numbers.

[0245] Optionally, the first information is carried by one or more of the following: system information; a radio resource control protocol (RRC); a medium access control control element (MAC CE); or downlink control information (DCI).

[0246] Optionally, the first PRACH resource is dynamically changed in time domain.

[0247] Optionally, the time domain position of the first PRACH resource after being dynamically changed is indicated in one or more of the following: system information; a radio resource control protocol (RRC); a medium access control control element (MAC CE); or downlink control information (DCI).

[0248] Optionally, the SSBs are sequentially mapped to the second PRACH resource according to an order from small to large index number.

[0249] In another possible implementation, the communication apparatus 1300 is configured to implement the steps corresponding to the network device in the above method 300.

[0250] The transceiver 1302 is configured to receive the first information and the second information, the first information being used to indicate the first PRACH resource, the first PRACH resource having a first mapping relationship with the SSBs, and the second information being used to indicate the second PRACH resource, the second PRACH resource having a second mapping relationship with the SSBs, the first PRACH resource being available to the first type of terminal device, and the second PRACH resource being available to both the first type of terminal device and the second type of terminal device, the first type of terminal device and the second type of terminal device having different capabilities.

[0251] The processing module 1301 is configured to transmit data based on the first PRACH resource and / or the second PRACH resource.

[0252] Optionally, the first PRACH resource includes the second PRACH resource and a third PRACH resource, and the third PRACH resource has a different time domain location from the second PRACH resource.

[0253] Optionally, in the first mapping relationship, the SSBs are sequentially mapped to the third PRACH resource according to an order from large to small index number, or the SSBs are sequentially mapped to the third PRACH resource according to an order from small to large index number.

[0254] Optionally, in the first mapping relationship, preset SSBs are sequentially mapped to the third PRACH resource according to an order from large to small index number, or the preset SSBs are sequentially mapped to the third PRACH resource according to an order from small to large index number, the preset SSBs being a part of the SSBs.

[0255] Optionally, a configuration period of the second PRACH resource is less than an association period of the second PRACH resource, a number of the configuration period is N, a number of the SSBs is M, index numbers of the SSBs are integers from 0 to M-1 in sequence, in a first configuration period of the second PRACH resource, the SSBs with index numbers from 0 to K are sequentially mapped onto the second PRACH resource corresponding to the first configuration period in an order of index numbers from small to large, N and M are integers greater than 1, and K is an integer greater than 0 and less than M-1; in the first mapping relationship, the SSBs are sequentially mapped from the SSB with the index number K in an order from small to large, until the SSB with the index number M-1 is mapped, and then the SSB with the index number 0 is sequentially mapped onto the third PRACH resource in an order from small to large.

[0256] Optionally, a number of the association periods of the second PRACH resource is multiple, in the first mapping relationship, in the association period with an odd index number, the SSBs are sequentially mapped onto the third PRACH resource in an order of index numbers from large to small, and in the association period with an even index number, the SSBs are sequentially mapped onto the third PRACH resource in an order of index numbers from small to large; or, in the association period with an odd index number, the SSBs are sequentially mapped onto the third PRACH resource in an order of index numbers from small to large, and in the association period with an even index number, the SSBs are sequentially mapped onto the third PRACH resource in an order of index numbers from large to small.

[0257] Optionally, the first PRACH resource does not include the second PRACH resource.

[0258] Optionally, in the first mapping relationship, the SSBs are sequentially mapped onto the first PRACH resource in an order of index numbers from large to small, or the SSBs are sequentially mapped onto the first PRACH resource in an order of index numbers from small to large.

[0259] Optionally, in the first mapping relationship, the preset SSBs are sequentially mapped onto the first PRACH resource in an order of index numbers from large to small, or the preset SSBs are sequentially mapped onto the first PRACH resource in an order of index numbers from small to large, and the preset SSBs are part of the SSBs.

[0260] Optionally, a configuration period of the second PRACH resource is less than an association period of the second PRACH resource, a number of the configuration period is N, a number of the SSBs is M, index numbers of the SSBs are integers from 0 to M-1 in sequence, in a first configuration period of the second PRACH resource, the SSBs with index numbers from 0 to K are sequentially mapped onto the second PRACH resource corresponding to the first configuration period in an order of index numbers from small to large, N and M are integers greater than 1, and K is an integer greater than 0 and less than M-1; in the first mapping relationship, the SSBs are sequentially mapped from the SSB with the index number K in an order of index numbers from small to large until the SSB with the index number M-1 is mapped, and then the SSBs are sequentially mapped from the SSB with the index number 0 in an order of index numbers from small to large onto the first PRACH resource.

[0261] Optionally, a number of the association periods of the second PRACH resource is multiple, in the first mapping relationship, in the association period with an odd index number, the SSBs are sequentially mapped onto the first PRACH resource according to an order of index numbers from large to small, and in the association period with an even index number, the SSBs are sequentially mapped onto the first PRACH resource according to an order of index numbers from small to large; or, in the association period with an odd index number, the SSBs are sequentially mapped onto the first PRACH resource according to an order of index numbers from small to large, and in the association period with an even index number, the SSBs are sequentially mapped onto the first PRACH resource according to an order of index numbers from large to small.

[0262] Optionally, the first information is carried by one or more of the following: system information; a radio resource control protocol (RRC); a medium access control control element (MAC CE); or downlink control information (DCI).

[0263] Optionally, the first PRACH resource is dynamically changed in a time domain.

[0264] Optionally, a time domain position of the first PRACH resource after being dynamically changed is indicated in one or more of the following: system information; a radio resource control protocol (RRC); a medium access control control element (MAC CE); or downlink control information (DCI).

[0265] Optionally, the SSBs are sequentially mapped onto the second PRACH resource according to an order of index numbers from small to large.

[0266] It should be understood that the apparatus 1300 herein is embodied in the form of functional modules. The term "module" herein can refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (shared, dedicated, or group) and memory that execute one or more software or firmware programs, a combinational logic circuit, and / or other suitable components that provide the described functionality. In one optional example, those skilled in the art can understand that the apparatus 1300 can be embodied in the network device or the terminal device in the above-described embodiments, and the apparatus 1300 can be used to execute the respective processes and / or steps corresponding to the terminal device or the network device in the above-described method embodiments. To avoid repetition, details are not described herein.

[0267] The apparatus 1300 described above has the functions of implementing the respective steps performed by the network device or the terminal device in the above-described methods; the above-described functions can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-described functions.

[0268] In the embodiments of the present application, Figure 13 The apparatus 1300 in the above-described embodiments can also be a chip, for example, a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), a central processor unit (CPU), a network processor (NP), a digital signal processor (DSP), a microcontroller unit (MCU), a programmable logic device (PLD), or other integrated chip. Correspondingly, the transceiver module 1302 can be a transceiver circuit of the chip, which is not limited herein.

[0269] Figure 14A structural diagram of the communication apparatus 1400 is provided in the embodiments of the present application. The apparatus 1400 includes a processor 1401, a transceiver 1402, and a memory 1403. The processor 1401, the transceiver 1402, and the memory 1403 communicate with each other through internal connection paths. The memory 1403 is configured to store instructions, and the processor 1401 is configured to execute the instructions stored in the memory 1403 to control the transceiver 1402 to transmit and / or receive signals.

[0270] It should be understood that the apparatus 1400 can be specifically a network device or a terminal device in the above-described embodiments, and can be used to execute each step and / or process corresponding to the network device or the terminal device in the above-described method embodiments. Optionally, the memory 1403 can include a read-only memory and a random access memory, and provide instructions and data for the processor. A part of the memory can also include a non-volatile random access memory. For example, the memory can also store device type information. The processor 1401 can be configured to execute the instructions stored in the memory, and when the processor 1401 executes the instructions stored in the memory, the processor 1401 is configured to execute each step and / or process of the above-described method embodiments. The transceiver 1402 can include a transmitter and a receiver. The transmitter can be configured to implement each step and / or process corresponding to the transmitter for executing a transmitting action, and the receiver can be configured to implement each step and / or process corresponding to the receiver for executing a receiving action.

[0271] It should be understood that in the embodiments of the present application, the processor can be a central processing unit (CPU), and the processor can also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0272] In the implementation process, each step of the above-described method can be completed by integrated logic circuits of hardware in the processor or instructions in the form of software. The steps of the method disclosed in the embodiments of the present application can be directly embodied as execution completed by a hardware processor, or executed by a combination of hardware and software modules in the processor. The software module can be located in a storage medium in the art, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an electrically erasable programmable memory, a register, or the like. The storage medium is located in the memory, and the processor executes the instructions in the memory to complete the steps of the above-described method in combination with the hardware. To avoid repetition, it will not be described in detail here.

[0273] The application further provides a computer readable storage medium for storing a computer program for implementing the method shown in the above method embodiments.

[0274] The application further provides a computer program product comprising computer program code or computer program instructions, which, when executed on a computer, can perform the method shown in the above method embodiments.

[0275] The application further provides a chip system comprising at least one processor and a communication interface, the communication interface and the at least one processor being interconnected through a line, the at least one processor being configured to execute computer programs or instructions, so that the computer can perform the method shown in the above method embodiments.

[0276] Those skilled in the art can understand that the modules and algorithm steps of the examples described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solutions. Those skilled in the art can use different methods to realize the described functions for each specific application, but such implementation should not be considered beyond the scope of the application.

[0277] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described system, device and module can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

[0278] In several embodiments provided in the application, it should be understood that the disclosed system, device and method can be realized by other ways. For example, the above-described device embodiments are only schematic, for example, the division of the modules is only a logical function division, and actual implementation can have another division manner, for example, a plurality of modules or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the shown or discussed modules can be indirect coupling or communication connection through some interfaces, devices or modules, and can be electrical, mechanical or other forms.

[0279] The modules described as separate components can or can not be physically separated, and the components shown as modules can or can not be physical modules, i.e. can be located in one place, or can be distributed to a plurality of network modules. Part or all of the modules can be selected according to actual needs to achieve the purpose of the embodiment.

[0280] In addition, each functional module in each embodiment of the present application can be integrated in one processing module, or each module can exist physically independently, or two or more modules can be integrated in one module.

[0281] If the functions are implemented in the form of software function modules and sold or used as independent products, the functions can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application or the parts of the technical solutions that essentially contribute to the prior art can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0282] The above is only a specific implementation of the present application, but the protection scope of the embodiments of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the embodiments of the present application, which should be covered within the protection scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application should be subject to the protection scope of the claims.

Claims

1. A resource allocation method, characterized in that, include: First information is determined, which is used to indicate a first physical random access channel (PRACH) resource. There is a first mapping relationship between the first PRACH resource and the synchronization signal block (SSB). The first PRACH resource is a resource available to a first type of terminal device. Determine second information, which is used to indicate a second PRACH resource. There is a second mapping relationship between the second PRACH resource and the SSB. The second PRACH resource is a resource that can be used by both the first type of terminal device and the second type of terminal device. The capabilities of the first type of terminal device and the second type of terminal device are different. Send the first information and the second information.

2. A resource allocation method, characterized in that, include: The system receives first information and second information. The first information indicates a first physical random access channel (PRACH) resource, and there is a first mapping relationship between the first PRACH resource and a synchronization signal block (SSB). The second information indicates a second PRACH resource, and there is a second mapping relationship between the second PRACH resource and the SSB. The first PRACH resource is a resource available to a first type of terminal device, and the second PRACH resource is a resource available to both the first and second types of terminal devices. The capabilities of the first and second types of terminal devices are different. Data is sent based on the first PRACH resource and / or the second PRACH resource.

3. The method according to claim 1 or 2, characterized in that, The first PRACH resource includes the second PRACH resource and the third PRACH resource, wherein the third PRACH resource is located at a different time domain than the second PRACH resource.

4. The method according to claim 3, characterized in that, In the first mapping relationship, the SSB is mapped to the third PRACH resource in descending order of index number, or the SSB is mapped to the third PRACH resource in ascending order of index number.

5. The method according to claim 3, characterized in that, In the first mapping relationship, the preset SSB is mapped to the third PRACH resource in descending order of index number, or the preset SSB is mapped to the third PRACH resource in ascending order of index number, and the preset SSB is a part of the SSB.

6. The method according to claim 3, characterized in that, The configuration period of the second PRACH resource is less than the association period of the second PRACH resource. The number of configuration periods is N, the number of SSBs is M, and the index numbers of the SSBs are integers from 0 to M-1. In the first configuration period of the second PRACH resource, the SSBs with index numbers from 0 to K are mapped to the second PRACH resource corresponding to the first configuration period in ascending order of index number. N and M are both integers greater than 1, and K is an integer greater than 0 and less than M-1. In the first mapping relationship, the SSB is mapped sequentially from the SSB with index number K to the SSB with index number M-1, and then sequentially from the SSB with index number 0 to the third PRACH resource.

7. The method according to claim 3, characterized in that, The number of associated periods for the second PRACH resource is multiple. In the first mapping relationship, in the associated period with an odd index number, the SSB is mapped to the third PRACH resource in descending order of index number. In the associated period with an even index number, the SSB is mapped to the third PRACH resource in ascending order of index number. or, In the association period where the index number is odd, the SSB is mapped to the third PRACH resource in ascending order of index number; in the association period where the index number is even, the SSB is mapped to the third PRACH resource in descending order of index number.

8. The method according to claim 1 or 2, characterized in that, The first PRACH resource does not include the second PRACH resource.

9. The method according to claim 8, characterized in that, In the first mapping relationship, the SSB is mapped to the first PRACH resource in descending order of index number, or the SSB is mapped to the first PRACH resource in ascending order of index number.

10. The method according to claim 8, characterized in that, In the first mapping relationship, the preset SSB is mapped to the first PRACH resource in descending order of index number, or the preset SSB is mapped to the first PRACH resource in ascending order of index number, and the preset SSB is a part of the SSB.

11. The method according to claim 8, characterized in that, The configuration period of the second PRACH resource is less than the association period of the second PRACH resource. The number of configuration periods is N, the number of SSBs is M, and the index numbers of the SSBs are integers from 0 to M-1. In the first configuration period of the second PRACH resource, the SSBs with index numbers from 0 to K are mapped to the second PRACH resource corresponding to the first configuration period in ascending order of index number. N and M are both integers greater than 1, and K is an integer greater than 0 and less than M-1. In the first mapping relationship, the SSB is mapped sequentially from the SSB with index number K to the SSB with index number M-1, and then sequentially from the SSB with index number 0 to the SSB with index number M-1 to the first PRACH resource.

12. The method according to claim 8, characterized in that, The number of associated periods for the second PRACH resource is multiple. In the first mapping relationship, in the associated period with an odd index number, the SSB is mapped to the first PRACH resource in descending order of index number. In the associated period with an even index number, the SSB is mapped to the first PRACH resource in ascending order of index number. or, In the association period where the index number is odd, the SSB is mapped to the first PRACH resource in ascending order of index number; in the association period where the index number is even, the SSB is mapped to the first PRACH resource in descending order of index number.

13. The method according to any one of claims 1 to 12, characterized in that, The first information is carried in one or more of the following ways: System information; Radio Resource Control Protocol (RRC); Media access control element MAC CE; or, Downlink Control Information (DCI).

14. The method according to any one of claims 1 to 13, characterized in that, The first PRACH resource is dynamically changing in the time domain.

15. The method according to claim 14, characterized in that, The time-domain location of the first PRACH resource after dynamic changes is indicated in one or more of the following messages: System information; Radio Resource Control Protocol (RRC); Media access control element MAC CE; or, Downlink Control Information (DCI).

16. The method according to any one of claims 1 to 15, characterized in that, The SSB is mapped to the second PRACH resource in ascending order of index number.

17. A communication device, characterized in that, Includes modules for implementing the method as described in any one of claims 1 to 16.

18. A communication device, characterized in that, include: A processor coupled to a memory for storing a computer program, which, when invoked by the processor, causes the apparatus to perform the method as described in any one of claims 1 to 16.

19. A chip system, characterized in that, It includes at least one processor and a communication interface, the communication interface and the at least one processor being interconnected via a line, the at least one processor being configured to run a computer program or instructions to perform the method as described in any one of claims 1 to 16.

20. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store a computer program, the computer program including instructions for implementing the method as claimed in any one of claims 1 to 16.

21. A computer program product, characterized in that, The computer program product includes computer program code that, when run on a computer, causes the computer to implement the method as described in any one of claims 1 to 16.

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