Resource configuration method and related device

Abstract

This application provides a resource configuration method and a related device, which includes obtaining configuration information used to indicate a random access resource of at least one transmission / reception point (TRP) among a plurality of TRPs, and performing random access based on the configuration information, so that each TRP has a corresponding random access resource, effectively supporting the timing advance (TA) of each TRP, and improving the efficiency and quality of random access of a terminal device.

Description

[Technical Field]

[0001] The present application relates to the field of communications technology, and more particularly to a resource configuration method and related apparatus. [Background technology]

[0002] In the network architecture of a next-generation wireless network system (e.g., a 5G (5th-generation) system), multiple Transmission and Reception Points (TRPs) can simultaneously serve a terminal device and perform data transmission. Currently, there is no Physical Random Access Channel (PRACH) resource configuration method for multiple TRPs, so it is not possible to effectively support Timing Advance (TA) for each TRP. Summary of the Invention

[0003] The embodiments of the present application provide a resource configuration method and related device, which configures random access-related resources for at least one TRP among multiple TRPs, enables effective support of TA for each TRP, and improves the efficiency and quality of random access for a terminal device.

[0004] In a first aspect, an embodiment of the present application provides a resource configuration method, the method including: obtaining configuration information used to indicate random access resources of at least one transmission / reception point (TRP) among a plurality of TRPs; and performing random access based on the configuration information.

[0005] In a second aspect, an embodiment of the present application provides a resource configuration method, the method including transmitting configuration information used to indicate random access resources of at least one transmission / reception point (TRP) of a plurality of TRPs.

[0006] In a third aspect, an embodiment of the present application provides a resource configuration device, comprising: an obtaining unit configured to obtain configuration information used to indicate random access resources of at least one transmission / reception point (TRP) among a plurality of TRPs; and a random access unit configured to perform random access based on the configuration information.

[0007] In a fourth aspect, an embodiment of the present application provides a resource configuration device, the device comprising: a transmitting unit configured to transmit configuration information used to indicate a random access resource of at least one transmission / reception point (TRP) among a plurality of TRPs.

[0008] In a fifth aspect, an embodiment of the present application provides a terminal device, the terminal device comprising a processor, a memory, a communication interface, and one or more programs, the one or more programs stored in the memory and configured to be executed by the processor, the programs including instructions for performing the steps of any of the methods of the first aspect of the embodiment of the present application.

[0009] In a sixth aspect, an embodiment of the present application provides a network device, the network device comprising a processor, a memory, a communication interface, and one or more programs, the one or more programs stored in the memory and configured to be executed by the processor, the programs including instructions for performing the steps of any of the methods of the second aspect of the embodiment of the present application.

[0010] In a seventh aspect, an embodiment of the present application provides a chip including a processor configured to retrieve and execute a computer program from a memory to cause a device incorporating the chip to perform some or all of the steps of the method of either the first or second aspect of the embodiment of the present application.

[0011] In an eighth aspect, an embodiment of the present application provides a chip module, the chip module including the chip according to the seventh aspect of the embodiment of the present application.

[0012] In a ninth aspect, an embodiment of the present application provides a computer readable storage medium having stored thereon a computer program for electronic data exchange, the computer program causing a computer to perform some or all of the steps set forth in the method of either the first or second aspect of the embodiment of the present application.

[0013] In a tenth aspect, an embodiment of the present application provides a computer program, executable to cause a computer to perform some or all of the steps of the method of either the first or second aspect of the embodiment of the present application, which may be a software installation package.

[0014] As can be seen from the above, in an embodiment of the present application, the configuration information for a terminal device to perform random access includes a random access resource configured for at least one TRP among a plurality of TRPs, so that each TRP has a corresponding random access resource, which can effectively support the TA of each TRP and improve the efficiency and quality of random access of the terminal device. [Brief explanation of the drawings]

[0015] In order to more clearly describe the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings necessary for describing the embodiments or the prior art. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings from these drawings without creative efforts. [Figure 1a] FIG. 1a is a diagram of a network system architecture according to an embodiment of the present application. [Figure 1b]FIG. 1b is a schematic diagram showing the structure of a terminal device according to an embodiment of the present application. [Figure 1c] FIG. 1c is a schematic diagram showing the structure of a network device according to an embodiment of the present application. [Figure 2a] FIG. 2a is a flowchart illustrating a resource configuration method according to an embodiment of the present application. [Figure 2b] FIG. 2b is a schematic diagram illustrating a preamble configuration according to an embodiment of the present application. [Figure 2c] FIG. 2c is a schematic diagram illustrating another preamble configuration according to an embodiment of the present application. [Figure 2d] FIG. 2d is a schematic diagram illustrating another preamble configuration according to an embodiment of the present application. [Figure 3] FIG. 3 is a block diagram showing the configuration of functional units of the resource setting device according to the embodiment of the present application. [Figure 4] FIG. 4 is a block diagram showing a configuration of functional units of another resource setting device according to an embodiment of the present application. [Figure 5] FIG. 5 is a block diagram showing a configuration of functional units of another resource setting device according to an embodiment of the present application. [Figure 6] FIG. 6 is a block diagram showing a configuration of functional units of another resource setting device according to an embodiment of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0016] In order to help those skilled in the art to better understand the technical solutions of the present application, the following will clearly and comprehensively describe the technical solutions of the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments that can be obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are all within the protection scope of the present invention.

[0017] In the specification, claims, and drawings of this application, terms such as "first" and "second" are used to distinguish between different objects, not to describe a particular sequence. Furthermore, terms such as "comprise," "include," or any other variant are intended to cover and not exclude the inclusion of other elements. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, and may optionally further include other steps or units that are not listed, or may optionally further include other steps or units that are inherent to the process, method, product, or device.

[0018] The term "embodiment" referred to in this specification means that a particular feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of the present application. Appearances of the term anywhere in the specification do not necessarily refer to the same embodiment, nor are they mutually exclusive independent or alternative embodiments. Those skilled in the art can explicitly or implicitly understand that the embodiments described herein can be combined with other embodiments. In the embodiments of the present application, the terms "system" and "network" can always be used interchangeably, and those skilled in the art can understand the meaning thereof.

[0019] First, some terms related to the embodiments of the present application will be explained to facilitate understanding by those skilled in the art.

[0020] This section explains random access (RA). The random access procedure refers to the process from when a terminal device starts attempting to access a network by sending a random access preamble to when a basic signaling connection is established with a network device. Random access can be divided into two types: 2-step RA and 4-step RA.

[0021] The four-step RA procedure includes four steps: transmission of a random access request message, transmission of a random access response (RAR) message, transmission of message 3 (Msg3), and transmission of message 4 (Msg4).

[0022] Step 1 is the transmission of a random access request message, that is, the terminal device sends a random access request message to the network device. The random access request message may also be referred to as message 1 (Msg1).

[0023] Specifically, the random access request message may include a random access preamble (RA preamble). The main role of the RA preamble is to request access from the network device, and enable the network device to estimate a transmission delay between the network device and the terminal device based on the RA preamble, align uplink timing accordingly, and indicate this to the terminal device through an RAR message.

[0024] Step 2 is the transmission of the RAR message. That is, when the network device receives the random access request message, it sends the RAR message to the terminal device. The RAR message may also be called message 2 (Msg2).

[0025] Step 3 is the transmission of message 3. That is, when the terminal device receives the RAR message, it sends Msg3 to the network device.

[0026] Step 4 is the transmission of message 4. That is, upon receiving Msg3, the network device sends message 4 to the terminal device. Message 4 may also be referred to as Msg4.

[0027] In the contention resolution mechanism, the network device indicates a successful terminal by carrying an identity (ID) used to uniquely identify the terminal in Msg4. Other terminals that fail the contention resolution will start random access again.

[0028] Compared with the four-step RA procedure, the two-step RA procedure helps reduce the access delay of the terminal device. The two-step RA procedure may include the following two steps:

[0029] Step 1 is the transmission of message A (ie, MsgA).

[0030] The terminal device sends MsgA to the network device, where MsgA may include a random access request message, which may be Msg1 in the above four-step RA procedure.

[0031] MsgA may also include two parts: a random access preamble and a physical uplink shared channel (PUSCH) payload.

[0032] Step two is the transmission of message B (ie, MsgB).

[0033] The network device receives MsgA and sends MsgB to the terminal device, which may include an RAR.

[0034] This section describes a random access channel opportunity (ROC) or physical random access channel opportunity (RO). In downlink communication in a wireless communication system, the system periodically transmits a synchronization signal and a broadcast channel to a terminal device via a synchronization signal and physical broadcast channel block (SSB). In addition, a base station configures a physical random access channel (PRACH) configuration period. Within this PRACH configuration period, a certain number of RACH transmission opportunities, i.e., ROs, are configured.

[0035] The association relationship between SSBs and ROs can be indicated by the upper layer parameter ssb-per-rach-occasion (N), or ssb-perRACH-OccasionAndCB-PreamblesPerSSB, or msgA-SSB-PerRACH-OccasionAndCB-PreamblesPerSSB. The value of N may be {1 / 8, 1 / 4, 1 / 2, 1, 2, 4, 8, 16}. If N<1, it indicates that one SSB can be mapped to multiple ROs. If N=1, it indicates that one SSB is mapped to one RO. If N>1, it indicates that multiple SSBs can be mapped to one RO. The number of ROs that can be configured in the frequency domain, i.e., in one time domain resource, the number of ROs in the frequency domain can be {1, 2, 4, 8} and is configured by the upper layer parameter msg1-FDM. The SSB-RO mapping period refers to the RO period required to completely map at least one round of SSB indices. Starting from frame 0, one mapping period may be one PRACH period or multiple PRACH periods, and is determined by the configuration of RO time domain resources and frequency domain resources.

[0036] For type-1 random access or type-2 random access (RO configuration for type-2 random access is separate from RO configuration for type-1 random access), in the preambles available to (or associated with) each RO, if N SSBs are mapped to one RO (N>1), the number of available preambles can be divided into N parts, and the index of the first contention-based preamble available to each SSB is JPEG2025533564000002.jpg40170 (n refers to the SSB index). JPEG2025533564000003.jpg68170 can be indicated by the higher layer parameter totalNumberOfRA-Preambles or msgA-TotalNumberOfRA-Preambles.

[0037] If the second type of random access and the first type of random access use a common RO configuration and one SSB is mapped to multiple ROs (N<1), among the preambles available (or associated) to each RO, the P preambles available (or associated) to each SSB that can be used for the second type of random access start from index Q.

[0038] When N SSBs are mapped to one RO (N>=1), among the preambles available (or associated) to each RO, P preambles available (or associated) to each SSB that can be used for the second type of random access are represented by the index JPEG2025533564000004.jpg34170 It starts with. JPEG2025533564000005.jpg68170 can be indicated by the higher layer parameter totalNumberOfRA-Preambles or msgA-TotalNumberOfRA-Preambles. Q represents the number of preambles associated with each SSB associated with each RO used for the first type of random access. P represents the number of preambles associated with each SSB associated with each RO used for the second type of random access.

[0039] Hereinafter, with reference to the drawings, a technical solution of a resource configuration method and related apparatus according to an embodiment of the present application will be described.

[0040] 1a, which is a diagram of a network system architecture according to an embodiment of the present application. As shown in FIG. 1a, the network system includes a plurality of network devices 120 and a terminal device 110. The network device 120 can be regarded as any TRP in the present technical solution. The network device 120 can send configuration information to the terminal device 110, and then the terminal device 110 can perform random access based on the configuration information.

[0041] The terminal device 110 in the embodiment of the present application is a device having wireless transmission and reception capabilities, and may be an electronic device or a server. The terminal device 110 may also be called a user equipment (UE), terminal device, mobile station (MS), mobile terminal (MT), access terminal, in-vehicle terminal, industrial control terminal, UE unit, UE station, mobile station, remote station, remote terminal, mobile device, UE terminal, wireless communication device, UE agent, or UE device. The user equipment may be fixed or mobile. The terminal device may support at least one wireless communication technology, such as long term evolution (LTE), new radio (NR), or wide band code division multiple access (WCDMA).For example, the electronic device may be a mobile phone, a tablet computer (pad), a desktop computer, a laptop computer, an all-in-one computer, an in-vehicle terminal device, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation security, a wireless terminal device in a smart city, a wireless terminal device in a 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 capabilities, a computing device or other processing device connected to a wireless modem, a wearable device, a terminal device in a future mobile communication network, or a terminal device in a future evolved public land mobile network (PLMN), etc. In some embodiments of the present application, the terminal device may be a device having a transmitting and receiving function, such as a chip system, which may include a chip and other discrete components.

[0042] The network device in the embodiment of the present application is a device that provides wireless communication functions to user equipment and may be referred to as an access network device, an access network element, a radio access network (RAN) device, etc. The network device may support at least one wireless communication technology such as LTE, NR, WCDMA, etc. Exemplarily, the access network device includes, but is not limited to, a next-generation base station (gNB) in a fifth-generation mobile communication system (5G), an evolved Node B (eNB), a radio network controller (RNC), a Node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home evolved Node B (HNB) or home Node B (HNB), a base band unit (BBU), a transmission reception point (TRP), a transmission point (TP), a mobile switch center, etc. The network device may also be a radio controller, a centralized unit (CU), and / or a distributed unit (DU) in a Cloud Radio Access Network (CRAN) scenario. Alternatively, the network device may be a relay station, an access point, an in-vehicle device, a terminal device, a wearable device, an access network device in future mobile communications, or an access network device in a future evolved PLMN. In some embodiments, the network device may be a device that provides wireless communication functionality to user equipment, such as a chip system. Exemplarily, the chip system may include a chip and other discrete components.

[0043] In some possible embodiments, the network device may be any one of multiple stations performing coherent joint transmission (CJT) with the terminal device, or may be a station other than the multiple stations, or may be another network device performing network communication with the terminal device, without any specific limitation. Multi-station coherent joint transmission may be multiple stations performing coherent joint transmission, or different data belonging to the same physical downlink shared channel (PDSCH) may be transmitted from different stations to the terminal device, or multiple stations may be virtualized as one station and perform transmission. Names defined with the same meanings as those described above in other standards may also be applied to this application, i.e., the names of these parameters are not limited in this application. A station in multi-station coherent joint transmission may be a remote radio head (RRH), a TRP, etc., without any specific limitation.

[0044] In some possible embodiments, the network device may be any one of multiple stations that perform non-coherent joint transmission with the terminal device, or may be another station other than the multiple stations, or may be another network device that performs network communication with the terminal device, and there is no specific limitation thereon. Multi-station non-coherent joint transmission may be non-coherent joint transmission by multiple stations, or different data belonging to the same PDSCH may be transmitted from different stations to the terminal device. Names defined with the same meanings as those described above in other standards may also be applied to this application, i.e., the names of these parameters are not limited in this application. Stations in multi-station non-coherent joint transmission may be RRHs, TRPs, etc., and there is no specific limitation thereon.

[0045] It should be noted that the TRP of the present application is not limited to the scene of coherent cooperative transmission or non-coherent cooperative transmission, but can also be applied to other scenes, which are not specifically limited.

[0046] 1b, the terminal device 110 includes a processor 210, a memory 220, a communication interface 230, and one or more programs 221. The one or more programs 221 are stored in the memory 220 and configured to be executed by the processor 210, and the programs 221 include instructions for performing operations performed by the terminal device-side device in the methods described in the method embodiments of the present application.

[0047] 1c, the network device 120 includes a processor 310, a memory 320, a communication interface 330, and one or more programs 321. The one or more programs 321 are stored in the memory 320 and configured to be executed by the processor 310, and the programs 321 include instructions for performing operations performed by the network-side device in the methods described in the method embodiments of the present application.

[0048] Please refer to Fig. 2a, which is a flowchart illustrating a resource configuration method according to an embodiment of the present application. As shown in Fig. 2a, the resource configuration method includes the following steps:

[0049] Step 201: The network device sends configuration information to the terminal device.

[0050] In response, the terminal device acquires the setting information from the network device.

[0051] The configuration information is used to indicate a random access resource of at least one transmission / reception point (TRP) among a plurality of TRPs.

[0052] The configuration information may be a random access resource configured for each TRP among the plurality of TRPs, or may be a random access resource configured for only some TRPs among the plurality of TRPs, and the random access resources of other TRPs among the plurality of TRPs can be obtained by inference. In an embodiment of the present application, a network device can configure a plurality of TRPs in a terminal device.

[0053] In addition, the TRP may be expressed as a transmission configuration indication state (TCI state), a sounding reference signal (SRS) resource, an SRS resource set, spatial information, etc. In other words, the TCI state, the SRS resource, the SRS resource set, or spatial information may also be regarded as a concept of the TRP.

[0054] In addition, the TRP in this application may be associated with spatial information or beam direction (e.g., one or a group of beams), or may be represented by spatial information or beam direction (e.g., one or a group of beams), or may be represented by a power control parameter. Furthermore, the TRP in this application may be a functional module (e.g., implemented by a software function) or may be implemented by hardware. In this application, there is no specific limitation on the implementation method of the TRP.

[0055] In an NR system, the random access resources may include a common random access configuration information element (RACH-ConfigCommon information element) and / or a RACH-ConfigCommonTwoStepRA and / or a RACH-ConfigDedicated and / or a RACH-ConfigGeneric and / or a RACH-ConfigGenericTwoStepRA. The configured random access resources include time domain resources and / or frequency domain resources and / or a random access preamble for random access, and / or are used to configure a mapping relationship between SSBs and random access resources. The terminal device determines a corresponding subset of random resources based on the mapping relationship between SSBs and random access resources or based on SSBs that satisfy a condition in the measurement results.

[0056] Step 202: The terminal device performs random access based on the setting information.

[0057] When performing random access, the terminal device transmits random access request information to the network based on the configured random access resource. After receiving the random access request information, the network transmits response information to the terminal device. The random access resource corresponding to at least one TRP may include a two-step RA resource and / or a four-step RA resource configured for the terminal device. RA procedures can be divided into a contention-based RA process and a non-contention-based RA process. Contention-based RA means that access resources are randomly obtained by the terminal device itself. Non-contention-based RA means that access resources for the terminal device are allocated by the base station. The essential difference between the two is whether the terminal device receives dedicated random access resources allocated from the network before initiating random access.

[0058] As can be seen from the above, in this embodiment, the random access resources configured by the network device for the terminal device include the random access resources configured for at least one TRP among the multiple TRPs, so that each TRP has a corresponding random access resource, which can effectively support the TA of each TRP and improve the efficiency and quality of random access of the terminal device.

[0059] In a possible embodiment, each of the multiple TRPs corresponds to a set of random access resources.

[0060] The configuration information may include one set of random access resources configured for each TRP, i.e., one set of random access common configuration information (RACH-ConfigCommon) and / or two-step RA common configuration information (RACH-ConfigCommonTwoStepRA) and / or RACH-ConfigDedicated and / or RACH-ConfigGeneric and / or RACH-ConfigGenericTwoStepRA is associated with one TRP, and another set of RACH-ConfigCommon and / or RACH-ConfigCommonTwoStepRA and / or RACH-ConfigDedicated and / or RACH-ConfigGeneric and / or RACH-ConfigGenericTwoStepRA is associated with another TRP.

[0061] As can be seen from the above, in this embodiment, a set of random access resources can be configured for each TRP in the configuration information, so that each TRP has a corresponding random access resource, which can effectively support the TA of each TRP and improve the efficiency and quality of random access of the terminal device.

[0062] In a possible embodiment, the plurality of TRPs includes a first TRP and a second TRP, and the configuration information includes a first random access resource of the first TRP and / or a second random access resource of the second TRP.

[0063] When a random access resource is configured for only one of the first TRP and the second TRP, the random access resource of the other TRP can be obtained by inference.

[0064] In a possible embodiment, the first random access resource is a resource corresponding to a first physical cell identifier (PCI), and the second random access resource is a resource corresponding to a second PCI, where the first PCI is the PCI of a serving cell and the second PCI is the PCI of any one of one or more non-serving cells.

[0065] In an inter-cell multi-transmission / reception point (inter-cell M-TRP) scenario, random access resources can be configured for each second serving cell, i.e., a non-serving cell. The physical cell identifier (PCI) associated with the SSB of the serving cell is different from the PCI associated with the SSB of the non-serving cell. The association relationship between the SSB of the non-serving cell and the PCI can be configured via an SSB-MTC-Additional PCI. Note that the PCI may be used to distinguish between different cells or signals of different cells, i.e., the PCI may be associated with a cell. Therefore, in the present application, a parameter may be associated with the PCI, thereby realizing that the parameter is associated with a cell, i.e., realizing that different cells or signals of different cells can be distinguished by the parameter. When random access resources are configured for two TRPs, the random access resource of one TRP may be a resource corresponding to the PCI of the serving cell, and the random access resource of the other TRP may be a resource corresponding to the PCI of any one of the non-serving cells.

[0066] As can be seen from the above, in this embodiment, the random access resources of the two TRPs are resources corresponding to the PCI of the serving cell and resources corresponding to the PCI of the non-serving cell, respectively, so that the TA of each TRP is effectively supported, and the efficiency and quality of random access of the terminal device can be improved.

[0067] In a possible embodiment, the second random access resource is available if the second PCI is a PCI of a non-serving cell associated with an active transmission configuration indication (TCI) state used for a physical downlink shared channel (PDSCH).

[0068] The availability of the second random access resource means that the terminal device can perform random access based on the random access resource configured for the second TRP. When the terminal device and the network device perform data transmission based on beams, the TCI of the transmission serving cell is usually configured for the terminal device, that is, the beam configuration of the serving cell is performed for the terminal device.

[0069] In a possible embodiment, multiple TRPs correspond to a set of random access resources.

[0070] The plurality of TRPs corresponding to one set of random access resources may mean that some of the plurality of TRPs correspond to the same set of random access resources and other TRPs correspond to a different set of random access resources, or that each of the plurality of TRPs corresponds to the same set of random access resources.

[0071] In a possible embodiment, a set of random access resources corresponding to multiple TRPs includes preamble information associated with at least one TRP of the multiple TRPs in one random access channel opportunity (RO).

[0072] When the same set of random access resources is configured for each of multiple TRPs, different TRPs are associated with different preambles in the same RO. A preamble is the actual content transmitted by a terminal device on a PRACH and consists of a cyclic prefix (CP) with a length of Tcp and a sequence with a length of Tseq. The preamble information included in a set of random access resources includes the number of preambles associated with each TRP in the same RO and / or the index of the preamble.

[0073] As can be seen from the above, in this embodiment, when multiple TRPs share the same random access resource configuration, the random resource configuration of each TRP is realized by associating different TRPs with different preambles in the same RO, thereby effectively supporting the TA of each TRP and improving the efficiency and quality of random access of the terminal device.

[0074] In a possible embodiment, a set of random access resources corresponding to multiple TRPs includes a first type of random access configured for a terminal device, and the number of preambles associated with each SSB associated with each RO related to the first type of random access is X1, where X1 is an integer.

[0075] The number of preambles available for (or associated with) each SSB can be indicated by the upper layer parameters CB-PreamblesPerSSB, ssb-perRACH-OccasionAndCB-PreamblesPerSSB, msgA-SSB-PerRACH-OccasionAndCB-PreamblesPerSSB, or msgA-CB-PreamblesPerSSB-PerSharedRO. The number of SSBs to which each RO is mapped can also be determined based on the mapping relationship between ROs and SSBs. X1 may be indicated by preamble information included in a set of random access resources corresponding to the first TRP and the second TRP. That is, among the preambles available for one RO associated with the first type of random access, X1 preambles are preambles available for one SSB to which that one RO is mapped. The type of random access corresponding to the first type of random access may be the four-step RA described above. For the first type of mapping relationship (i.e., when N<1 in the above-described mapping relationship between SSBs and ROs), one SSB corresponds to multiple ROs, so the number X1 can be understood as the number of preambles for contention access associated with one RO or the number of preambles for contention-free access associated with one RO. For the second type of mapping relationship (i.e., when N=1 or N>1 in the above-described mapping relationship between SSBs and ROs), one RO is associated with multiple SSBs, so if the number of preambles associated with each SSB is X1, then when one RO is associated with N SSBs, the number of preambles for contention access associated with one RO or the number of preambles for non-contention access associated with one RO is N*X1.

[0076] In a possible embodiment, the at least one TRP includes a first TRP and a second TRP, and of the X1 preambles associated with each SSB, the first X1-L1 preambles are associated with the first TRP and the last L1 preambles are associated with the second TRP, where L1 is an integer.

[0077] Each SSB described in the present technical proposal is an SSB associated with each RO. X1 and / or L1 and / or X1-L1 can be indicated by preamble information included in a set of random access resources corresponding to the first TRP and the second TRP. That is, among the preambles available for one RO associated with the first type of random access, X1 preambles are available for one SSB to which the RO is mapped. Of the X1 preambles, L1 preambles are associated with the first TRP, and X1-L1 preambles are associated with the second TRP. As shown in Figure 2b, (a) of Figure 2b illustrates the number of preambles associated with each TRP associated with one SSB when the mapping relationship between the SSB and the RO is the first type of mapping relationship. That is, in this case, of the X1 preambles, the first X1-L1 preambles are associated with the first TRP, and the last L1 preambles are associated with the second TRP. 2b(b) shows the number of preambles associated with each TRP associated with one SSB when the mapping relationship between SSBs and ROs is a second type. The X1 preambles associated with one SSB are only a portion of all preambles associated with the RO. Of the portion of preambles, the first X1-L1 preambles are associated with the first TRP, and the last L1 preambles are associated with the second TRP. In particular, the X1 preambles associated with the nth SSB start from the preamble with index (n-1)*X1. For example, the X1 preambles of the first SSB start from the preamble with index 0, and the X1 preambles of the second SSB start from the preamble with index X1.

[0078] In a possible embodiment, the at least one TRP includes a first TRP and a second TRP. Among the X1 preambles associated with each SSB, the number of preambles associated with the first TRP is K, and the number of preambles associated with the second TRP is inferred based on the number of preambles associated with the first TRP, where K is an integer. The K may be indicated by preamble information included in a set of random access resources corresponding to the first TRP and the second TRP. That is, among the preambles available for one RO associated with the first type of random access, the X1 preambles are preambles available for one SSB to which the RO is mapped. Of the X1 preambles, K preambles are associated with the first TRP.

[0079] In a possible embodiment, the at least one TRP includes a first TRP and a second TRP. Of the X1 preambles associated with each SSB, the first TRP is associated with X preambles, and the second TRP is associated with Y preambles. X and / or Y are network configuration information or protocol pre-defined information, and X and Y are integers. The number of preambles corresponding to the first TRP and / or the second TRP can be obtained directly or indirectly by a protocol pre-defined manner.

[0080] In a possible embodiment, the at least one TRP includes a first TRP and a second TRP. Of the X1 preambles associated with each SSB, the scaling factor of the first TRP is α, and the scaling factor of the second TRP is (1-α). The scaling factor is used to indicate the number of preambles associated with the first TRP and / or the number of preambles associated with the second TRP. That is, in this case, the number of preambles associated with the first TRP is X1*α, and the number of preambles associated with the second TRP is X1*(1-α). The network may configure the scaling factor for the first TRP and / or the second TRP. If the network configures the scaling factor only for the first TRP, the number of preambles associated with the second TRP can be inferred. In particular, if the value of X1*α is not an integer, the value needs to be rounded. This rounding may be performed by rounding up, rounding down, or by retaining only the integer part of the value. Of course, the network may set the scaling factor for the first TRP and / or the second TRP.

[0081] As can be seen from the above, in this embodiment, in the same RO, different TRPs are associated with different preambles, thereby realizing random resource configuration for each TRP, effectively supporting TA for each TRP, and improving the efficiency and quality of random access for terminal devices.

[0082] In a possible embodiment, the set of random access resources corresponding to the plurality of TRPs further includes a second type of random access configured for the terminal device. The first type of random access and the second type of random access each correspond to a set of physical random access channel (PRACH) configurations. In one RO, preamble information associated with at least one TRP is associated with the first type of random access and / or the second type of random access.

[0083] The type of random access corresponding to the second type of random access may be the two-step RA described above. When both the first type of random access and the second type of random access are configured but separate PRACH configurations are used for the first type of random access procedure and the second type of random access procedure, the number of preambles associated with each SSB associated with each RO associated with the second type of random access is X2, where X2 is an integer. The at least one TRP includes a first TRP and a second TRP. Of the X2 preambles associated with each SSB, the first X2-L4 preambles are associated with the first TRP, and the last L4 preambles are associated with the second TRP, where L4 is an integer. X2 and / or L4 and / or X2-L4 may be indicated by preamble information included in a set of random access resources corresponding to the first TRP and the second TRP. That is, of the preambles available for one RO associated with the second type of random access, X2 preambles are available for one SSB to which the RO is mapped. Of the X2 preambles, L4 preambles are associated with the first TRP, and X2-L4 preambles are associated with the second TRP. As can be seen, the configuration method of preambles associated with each SSB in an RO associated with the first type of random access is the same as the configuration method of preambles associated with each SSB in an RO associated with the second type of random access, and the configuration method of preambles in TRPs associated with each SSB in an RO associated with the first type of random access is also the same as the configuration method of preambles in TRPs associated with each SSB in an RO associated with the second type of random access. Note that although the configuration methods are the same, the number of configured preambles may be different.

[0084] As can be seen from the above, in this embodiment, in the same RO, different TRPs are associated with different preambles, thereby realizing random resource configuration for each TRP, effectively supporting TA for each TRP, and improving the efficiency and quality of random access for terminal devices.

[0085] In a possible embodiment, the set of random access resources corresponding to the multiple TRPs includes a first type of random access and a second type of random access configured for the terminal device, the first type of random access and the second type of random access share the same set of PRACH configurations, the number of preambles associated with each SSB associated with each RO associated with the first type of random access is Q, the number of preambles associated with each SSB associated with each RO associated with the second type of random access is P, and Q and P are integers.

[0086] The type of random access corresponding to the first type of random access may be the above-mentioned four-step RA, and the second type of random access may be the above-mentioned two-step RA. For the first type of mapping relationship (i.e., when N<1 in the above-mentioned mapping relationship between SSBs and ROs), since one SSB corresponds to multiple ROs, the number Q can be understood to be the number of preambles for contention access in the four-step RA procedure associated with one RO, or the number of preambles for non-contention access in the four-step RA procedure associated with one RO. The number P can be understood to be the number of preambles for contention access in the two-step RA procedure associated with one RO, or the number of preambles for non-contention access in the two-step RA procedure associated with one RO. The Q and / or P can be indicated by preamble information included in a set of random access resources corresponding to the first TRP and the second TRP.

[0087] For the second type of mapping relationship (i.e., when N=1 or N>1 in the above-described mapping relationship between SSBs and ROs), since one RO is associated with multiple SSBs, if the number of preambles associated with the first type of random access associated with each SSB is Q and the number of preambles associated with the second type of random access associated with each SSB is P, then when one RO is associated with N SSBs, the number of preambles for contention access of the first type of random access procedure associated with one RO or the number of preambles for non-contention access of the first type of random access procedure associated with one RO is N*Q. Similarly, the number of preambles for contention access of the second type of random access procedure associated with one RO or the number of preambles for non-contention access of the second type of random access procedure associated with one RO is N*P.

[0088] In a possible embodiment, the at least one TRP includes a first TRP and a second TRP, and of the Q preambles, the first Q-L2 preambles are associated with the first TRP and the last L2 preambles are associated with the second TRP, where L2 is an integer.

[0089] The Q and / or L2 and / or Q-L2 may be indicated by preamble information included in a set of random access resources corresponding to the first TRP and the second TRP. That is, among preambles available for one RO associated with the first type of random access, Q preambles are available for one SSB to which the RO is mapped. Of the Q preambles, L2 preambles are associated with the first TRP, and Q-L2 preambles are associated with the second TRP. As shown in FIG. 2c, (a) of FIG. 2c illustrates the number of preambles associated with each TRP among Q preambles associated with one SSB associated with one RO when the mapping relationship between the SSB and the RO is the first type. That is, among the Q preambles, the first Q-L2 preambles are associated with the first TRP, and the last L2 preambles are associated with the second TRP.

[0090] FIG. 2c (b) shows the number of preambles associated with each TRP among Q preambles related to the first type of random access associated with any one of multiple SSBs associated with one RO when the mapping relationship between SSBs and ROs is the second type of mapping relationship. The Q preambles associated with one SSB are only a portion of all preambles associated with the RO, and among the portion of preambles, the first Q-L2 preambles are associated with the first TRP, and the last L2 preambles are associated with the second TRP. In particular, the Q preambles associated with the n-th SSB among N SSBs are assigned indexes JPEG2025533564000006.jpg34170 For example, the Q preambles of the first SSB start with the preamble with index 0, and the Q preambles of the second SSB start with the preamble with index 1. JPEG2025533564000007.jpg54170 It starts with a preamble that is JPEG2025533564000008.jpg34170 If the value of is not an integer, then the value must be rounded. This rounding may be done by rounding up, rounding down, or by keeping only the integer part of the value. JPEG2025533564000009.jpg68170 can be indicated by the higher layer parameter totalNumberOfRA-Preambles or msgA-TotalNumberOfRA-Preambles.

[0091] In a possible embodiment, the at least one TRP includes a first TRP and a second TRP. Among the Q preambles, the number of preambles associated with the first TRP is K, and the number of preambles associated with the second TRP is inferred based on the number of preambles associated with the first TRP, where K is an integer. The network may configure preamble information for only one of the two TRPs, in which case the preamble information for the other TRP is inferred. The K may be indicated by preamble information included in a set of random access resources corresponding to the first TRP and the second TRP. That is, among the preambles available for one RO associated with the first type of random access, Q preambles are preambles available for one SSB to which the RO is mapped. Among the Q preambles, K preambles are associated with the first TRP.

[0092] In a possible embodiment, the at least one TRP includes a first TRP and a second TRP. Among the Q preambles, the first TRP is associated with X preambles, and the second TRP is associated with Y preambles. X and / or Y are network configuration information or protocol predefinition information, and X and Y are integers. The number of preambles corresponding to the first TRP and / or the second TRP can be obtained directly or indirectly through the protocol predefinition manner.

[0093] In a possible embodiment, the at least one TRP includes a first TRP and a second TRP. Among the Q preambles, the scaling factor of the first TRP is α, and the scaling factor of the second TRP is (1-α). The scaling factor is used to indicate the number of preambles associated with the first TRP and / or the number of preambles associated with the second TRP. That is, in this case, the number of preambles associated with the first TRP is Q*α, and the number of preambles associated with the second TRP is Q*(1-α). The network may set the scaling factor for the first TRP and / or the second TRP. If the network sets the scaling factor only for the first TRP, the number of preambles associated with the second TRP can be inferred. In particular, if the value of Q*α is not an integer, the value needs to be rounded. This rounding may be performed by rounding up, rounding down, or by retaining only the integer part of the value. Of course, the network may set the scaling factor for the first TRP and / or the second TRP.

[0094] As can be seen from the above, in this embodiment, in the same RO, different TRPs are associated with different preambles, thereby realizing random resource configuration for each TRP, effectively supporting TA for each TRP, and improving the efficiency and quality of random access for terminal devices.

[0095] In a possible embodiment, the at least one TRP includes a first TRP and a second TRP, and of the P preambles, the first P-L3 preambles are associated with the first TRP and the last L3 preambles are associated with the second TRP, where L3 is an integer.

[0096] The P and / or L3 and / or P-L3 may be indicated by preamble information included in a set of random access resources corresponding to the first TRP and the second TRP. That is, among the preambles available for one RO related to the second type of random access, P preambles are available for one SSB to which the RO is mapped. Of the P preambles, L3 preambles are associated with the first TRP, and P-L3 preambles are associated with the second TRP. As shown in FIG. 2d, (a) of FIG. 2d illustrates the number of preambles associated with each TRP among the P preambles related to the second type of random access and associated with one SSB associated with one RO when the mapping relationship between the SSB and the RO is the first type. That is, among the P preambles, the first P-L3 preambles are associated with the first TRP, and the last L3 preambles are associated with the second TRP.

[0097] 2d(b) shows the number of preambles associated with each TRP among P preambles related to the second type of random access associated with any one of multiple SSBs associated with one RO when the mapping relationship between SSBs and ROs is the second type. The P preambles associated with one SSB are only a portion of all preambles associated with the RO, and of the portion of preambles, the first P-L3 preambles are associated with a first TRP, and the last L3 preambles are associated with a second TRP.

[0098] In a possible embodiment, the at least one TRP includes a first TRP and a second TRP. Among the P preambles, the number of preambles associated with the first TRP is K, and the number of preambles associated with the second TRP is inferred based on the number of preambles associated with the first TRP, where K is an integer. The network may configure preamble information for only one of the two TRPs, in which case the preamble information for the other TRP is inferred. The K is indicated by the preamble information included in a set of random access resources corresponding to the first TRP and the second TRP. That is, among the preambles available for one RO associated with the second type of random access, P preambles are preambles available for one SSB to which the RO is mapped. Among the P preambles, K preambles are associated with the first TRP.

[0099] In a possible embodiment, the at least one TRP includes a first TRP and a second TRP. Among the P preambles, the first TRP is associated with X preambles, and the second TRP is associated with Y preambles. X and / or Y are network configuration information or protocol predefinition information, and X and Y are integers. The number of preambles corresponding to the first TRP and / or the second TRP can be obtained directly or indirectly through the protocol predefinition manner.

[0100] In a possible embodiment, the at least one TRP includes a first TRP and a second TRP. Among P preambles, the scaling factor of the first TRP is α, and the scaling factor of the second TRP is (1-α). The scaling factor is used to indicate the number of preambles associated with the first TRP and / or the number of preambles associated with the second TRP. That is, in this case, the number of preambles associated with the first TRP is P*α, and the number of preambles associated with the second TRP is P*(1-α). The network may set the scaling factor for the first TRP and / or the second TRP. If the network sets the scaling factor only for the first TRP, the number of preambles associated with the second TRP can be inferred. In particular, if the value of P*α is not an integer, the value needs to be rounded. This rounding may be performed by rounding up, rounding down, or by retaining only the integer part of the value. Of course, the network may set the scaling factor for the first TRP and / or the second TRP.

[0101] As can be seen from the above, in this embodiment, in the same RO, different TRPs are associated with different preambles, thereby realizing random resource configuration for each TRP, effectively supporting TA for each TRP, and improving the efficiency and quality of random access for terminal devices.

[0102] In a possible embodiment, the set of random access resources corresponding to the plurality of TRPs includes information of an RO associated with at least one TRP of the plurality of TRPs.

[0103] If multiple TRPs share the same random access resource, different TRPs may be associated with different ROs.

[0104] As can be seen from the above, in this embodiment, random resource configuration for each TRP is realized by associating different TRPs with different ROs, and TA for each TRP is effectively supported, thereby improving the efficiency and quality of random access for terminal devices.

[0105] In a possible embodiment, the at least one TRP includes a first TRP and a second TRP, where the first TRP is associated with T ROs, the second TRP is associated with MT ROs, M is the number of ROs to which one SSB is mapped, and T is an integer.

[0106] The M and / or MT may be indicated by preamble information included in a set of random access resources corresponding to the first TRP and the second TRP. That is, among the preambles available for one RO, M preambles are available for one SSB to which the RO is mapped. Among the M preambles, T preambles are associated with the first TRP and MT preambles are associated with the second TRP. When there are two TRPs, for the first type of mapping relationship (i.e., when N<1 in the above-mentioned SSB-RO mapping relationship), one SSB corresponds to multiple ROs. Therefore, when one SSB is mapped to M ROs, some of the M ROs may be associated with the first TRP and some of the ROs may be associated with the second TRP.

[0107] In a possible embodiment, the at least one TRP includes a first TRP and a second TRP, the first TRP is associated with T ROs, and the number of ROs associated with the second TRP is inferred based on the number of ROs associated with the first TRP, and the network may configure RO information for only one of the two TRPs, in which case the RO information for the other TRP is inferred.

[0108] In a possible embodiment, the at least one TRP includes a first TRP and a second TRP. Among the M preambles, the number of ROs associated with the first TRP is F, and the number of ROs associated with the second TRP is J, where F and / or J are network configuration information or protocol pre-defined information, and F and J are integers. The number of ROs associated with the first TRP and / or the second TRP can be obtained directly or indirectly through a protocol pre-defined manner.

[0109] In a possible embodiment, the at least one TRP includes a first TRP and a second TRP. Among M preambles, the scaling factor of the first TRP is α, and the scaling factor of the second TRP is (1-α). The scaling factor is used to indicate the number of ROs associated with the first TRP and / or the number of ROs associated with the second TRP. That is, in this case, the number of ROs associated with the first TRP is M*α, and the number of preambles associated with the second TRP is M*(1-α). The network may set the scaling factor for the first TRP and / or the second TRP. If the network sets the scaling factor only for the first TRP, the number of preambles associated with the second TRP can be inferred. In particular, if the value of M*α is not an integer, the value needs to be rounded. This rounding may be performed by rounding up, rounding down, or by leaving only the integer part of the value. Of course, the network may set the scaling factor for the first TRP and / or the second TRP.

[0110] In possible embodiments, the indices of the T ROs in the M ROs are consecutive, or the indices of the T ROs in the M ROs are not consecutive.

[0111] If the indices of the T ROs are consecutive, it can be understood that the M ROs are divided into two parts based on their indices, one part associated with the first TRP and the other part associated with the second TRP. If the indices of the T ROs are not consecutive, the M ROs are associated with the first TRP and the second TRP, respectively, in an alternating manner. The alternation can be by alternating one RO at a time, i.e., the indices of each RO in the M ROs are not consecutive. Alternatively, the alternation can be by alternating multiple ROs at a time, i.e., the indices of some ROs in the M ROs are consecutive.

[0112] As can be seen from the above, in this embodiment, random resource configuration for each TRP is realized by associating different TRPs with different ROs, and TA for each TRP is effectively supported, thereby improving the efficiency and quality of random access for terminal devices.

[0113] An embodiment of the present application provides a resource setting device, which can be used to perform steps performed by a terminal device in the above method, and can include units corresponding to the steps.

[0114] In the embodiments of the present application, functional module division may be performed on the resource configuration device based on the above method. For example, functional modules may be divided by function, or two or more functions may be integrated into one processing module. The integrated module may be implemented in the form of a hardware or software functional module. Note that the module division in the embodiments of the present application is merely an example and represents a division of logic functions. In actual implementation, other division forms may be used.

[0115] When functional modules are divided by function, as shown in Fig. 3, Fig. 3 is a block diagram showing the configuration of functional units of a resource configuration device according to an embodiment of the present application. The resource configuration device 3 includes an acquisition unit 301 configured to acquire configuration information used to indicate a random access resource of at least one transmission / reception point (TRP) among a plurality of TRPs, and a random access unit 302 configured to perform random access based on the configuration information.

[0116] In a possible embodiment, each of the multiple TRPs corresponds to a set of random access resources.

[0117] In a possible embodiment, the plurality of TRPs includes a first TRP and a second TRP, and the configuration information includes a first random access resource of the first TRP and / or a second random access resource of the second TRP.

[0118] In a possible embodiment, the first random access resource is a resource corresponding to a first physical cell identifier (PCI), the second random access resource is a resource corresponding to a second PCI, the first PCI being the PCI of the serving cell, and the second PCI being the PCI of any one of the one or more non-serving cells.

[0119] In a possible embodiment, the second random access resource is available if the second PCI is a PCI of a non-serving cell associated with an active transmission configuration indication (TCI) state used for a physical downlink shared channel (PDSCH).

[0120] In a possible embodiment, multiple TRPs correspond to a set of random access resources.

[0121] In a possible embodiment, a set of random access resources corresponding to multiple TRPs includes preamble information associated with at least one TRP of the multiple TRPs in one random access channel opportunity (RO).

[0122] In a possible embodiment, a set of random access resources corresponding to multiple TRPs includes a first type of random access configured for a terminal device, and the number of preambles associated with each synchronization signal and physical broadcast channel (PBCH) block (SSB) associated with each RO related to the first type of random access is X1, where X1 is an integer.

[0123] In a possible embodiment, the at least one TRP includes a first TRP and a second TRP, and of the X1 preambles associated with each SSB, the first X1-L1 preambles are associated with the first TRP and the last L1 preambles are associated with the second TRP, where L1 is an integer.

[0124] In a possible embodiment, the set of random access resources corresponding to multiple TRPs further includes a second type of random access configured for the terminal device, and the first type of random access and the second type of random access each correspond to a set of physical random access channel (PRACH) configurations, and in one RO, preamble information associated with at least one TRP is associated with the first type of random access and / or the second type of random access.

[0125] In a possible embodiment, a set of random access resources corresponding to multiple TRPs includes a first type of random access and a second type of random access configured for a terminal device, the first type of random access and the second type of random access share the same set of PRACH configurations, the number of preambles associated with each SSB associated with each RO associated with the first type of random access is Q, the number of preambles associated with each SSB associated with each RO associated with the second type of random access is P, and Q and P are integers.

[0126] In a possible embodiment, the at least one TRP includes a first TRP and a second TRP, and of the Q preambles, the first Q-L2 preambles are associated with the first TRP and the last L2 preambles are associated with the second TRP, where L2 is an integer.

[0127] In a possible embodiment, the at least one TRP includes a first TRP and a second TRP, and of the P preambles, the first P-L3 preambles are associated with the first TRP and the last L3 preambles are associated with the second TRP, where L3 is an integer.

[0128] In a possible embodiment, the set of random access resources corresponding to the plurality of TRPs includes information of an RO associated with at least one TRP of the plurality of TRPs.

[0129] In a possible embodiment, the at least one TRP includes a first TRP and a second TRP, the first TRP is associated with T ROs, the second TRP is associated with MT ROs, M is the number of ROs to which one SSB is mapped, and T is an integer.

[0130] In possible embodiments, the indices of the T ROs in the M ROs are consecutive, or the indices of the T ROs in the M ROs are not consecutive.

[0131] All relevant contents of each step in the above method embodiments can be referred to in the functional description of the corresponding functional unit, and will not be described in detail. Of course, the resource configuration device according to the embodiment of the present application includes, but is not limited to, the above units. For example, the resource configuration device may further include a storage unit. The storage unit can be used to store program codes and data of the resource configuration device.

[0132] When an integrated unit is adopted, a schematic diagram of the structure of a resource configuration device according to an embodiment of the present application is shown in FIG. 4. In FIG. 4, the resource configuration device 4 includes a processing module 40 and a communication module 41. The processing module 40 is used to control and manage the operation of the resource configuration device, for example, to perform the operations performed by the acquisition unit 301 and the random access unit 302, and / or to perform other processes of the techniques described herein. The communication module 41 is used to support interaction between the resource configuration device and other devices. As shown in FIG. 4, the resource configuration device may further include a storage module 42. The storage module 42 is used to store program codes and data of the resource configuration device, for example, to store the contents stored in the storage unit.

[0133] The processing module 40 may be a processor or controller, such as a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a transistor logic device, a hardware device, or any combination thereof. The processing module 40 may implement or execute each exemplary logic block, module, and circuit described in the present disclosure. The processor may be a combination that performs computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc. The communication module 41 may be a transceiver, a radio frequency (RF) circuit, a communication interface, etc. The storage module 42 may be a memory.

[0134] All relevant contents of each scene in the above method embodiments can be cited in the functional description of the corresponding functional module, and will not be described in detail. The resource setting device 3 and the resource setting device 4 can both perform the steps performed by the terminal device in the resource setting method shown in Figure 2a above.

[0135] An embodiment of the present application provides a resource configuration device, which can be used to perform the steps performed by the network device in the above method, and can include units corresponding to the steps.

[0136] In the embodiments of the present application, functional module division may be performed on the resource configuration device based on the above method. For example, functional modules may be divided by function, or two or more functions may be integrated into one processing module. The integrated module may be implemented in the form of a hardware or software functional module. Note that the module division in the embodiments of the present application is merely an example and represents a division of logic functions. In actual implementation, other division forms may be used.

[0137] When functional modules are divided by function, as shown in Fig. 5, Fig. 5 is a block diagram showing the configuration of functional units of another resource configuration device according to an embodiment of the present application. The resource configuration device 5 includes a transmitting unit 501 configured to transmit configuration information used to indicate random access resources of at least one transmission / reception point (TRP) among a plurality of TRPs.

[0138] In a possible embodiment, each of the multiple TRPs corresponds to a set of random access resources.

[0139] In a possible embodiment, the plurality of TRPs includes a first TRP and a second TRP, and the configuration information includes a first random access resource of the first TRP and a second random access resource of the second TRP.

[0140] In a possible embodiment, the first random access resource is a resource corresponding to a first physical cell identifier (PCI), the second random access resource is a resource corresponding to a second PCI, the first PCI being the PCI of the serving cell, and the second PCI being the PCI of any one of a plurality of non-serving cells.

[0141] In a possible embodiment, the second random access resource is available if the second PCI is a PCI of a non-serving cell associated with an active transmission configuration indication (TCI) state used for a physical downlink shared channel (PDSCH).

[0142] In a possible embodiment, multiple TRPs correspond to a set of random access resources.

[0143] In a possible embodiment, a set of random access resources corresponding to multiple TRPs includes preamble information associated with at least one TRP of the multiple TRPs in one random access channel opportunity (RO).

[0144] In a possible embodiment, a set of random access resources corresponding to multiple TRPs includes a first type of random access configured for a terminal device, and the number of preambles associated with each synchronization signal and physical broadcast channel (PBCH) block (SSB) associated with each RO related to the first type of random access is X1, where X1 is an integer.

[0145] In a possible embodiment, the at least one TRP includes a first TRP and a second TRP, and of the X1 preambles associated with each SSB, the first X1-L1 preambles are associated with the first TRP and the last L1 preambles are associated with the second TRP, where L1 is an integer.

[0146] In a possible embodiment, the set of random access resources corresponding to multiple TRPs further includes a second type of random access configured for the terminal device, and the first type of random access and the second type of random access each correspond to a set of physical random access channel (PRACH) configurations, and in one RO, preamble information associated with at least one TRP is associated with the first type of random access and / or the second type of random access.

[0147] In a possible embodiment, a set of random access resources corresponding to multiple TRPs includes a first type of random access and a second type of random access configured for a terminal device, the first type of random access and the second type of random access share the same set of PRACH configurations, the number of preambles associated with each SSB associated with each RO associated with the first type of random access is Q, the number of preambles associated with each SSB associated with each RO associated with the second type of random access is P, and Q and P are integers.

[0148] In a possible embodiment, the at least one TRP includes a first TRP and a second TRP, and of the Q preambles, the first Q-L2 preambles are associated with the first TRP and the last L2 preambles are associated with the second TRP, where L2 is an integer.

[0149] In a possible embodiment, the at least one TRP includes a first TRP and a second TRP, and of the P preambles, the first P-L3 preambles are associated with the first TRP and the last L3 preambles are associated with the second TRP, where L3 is an integer.

[0150] In a possible embodiment, the set of random access resources corresponding to the plurality of TRPs includes information of an RO associated with at least one TRP of the plurality of TRPs.

[0151] In a possible embodiment, the at least one TRP includes a first TRP and a second TRP, the first TRP is associated with T ROs, the second TRP is associated with MT ROs, M is the number of ROs to which one SSB is mapped, and T is an integer.

[0152] In possible embodiments, the indices of the T ROs in the M ROs are consecutive, or the indices of the T ROs in the M ROs are not consecutive.

[0153] All relevant contents of each step in the above method embodiments can be referred to in the functional description of the corresponding functional unit, and will not be described in detail. Of course, the resource configuration device according to the embodiment of the present application includes, but is not limited to, the above units. For example, the resource configuration device may further include a storage unit. The storage unit can be used to store program codes and data of the resource configuration device.

[0154] When an integrated unit is adopted, a schematic diagram of the structure of a resource configuration device according to an embodiment of the present application is shown in FIG. 6. In FIG. 6, the resource configuration device 6 includes a processing module 60 and a communication module 61. The processing module 60 is used to control and manage the operation of the resource configuration device, for example, to perform the operations performed by the sending unit 501 and / or to perform other processes of the techniques described herein. The communication module 61 is used to support interaction between the resource configuration device and other devices. As shown in FIG. 6, the resource configuration device may further include a storage module 62. The storage module 62 is used to store program codes and data of the resource configuration device, for example, to store the contents stored in the storage unit.

[0155] The processing module 60 may be a processor or controller, such as a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a transistor logic device, a hardware device, or any combination thereof. The processing module 60 may implement or execute each exemplary logic block, module, and circuit described in the present disclosure. The processor may be a combination that performs computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc. The communication module 61 may be a transceiver, a radio frequency (RF) circuit, a communication interface, etc. The storage module 62 may be a memory.

[0156] All relevant contents of each scene in the above method embodiments can be cited in the function description of the corresponding functional module, and will not be described in detail. The resource setting device 5 and the resource setting device 6 can both perform the steps performed by the network device in the resource setting method shown in Figure 2a above.

[0157] An embodiment of the present application further provides a chip including a processor configured to retrieve and execute a computer program from a memory to cause a device equipped with the chip to perform some or all of the steps of the terminal equipment described in the above method embodiment.

[0158] An embodiment of the present application further provides a chip module including a transceiver element and a chip, the chip including a processor configured to retrieve and execute a computer program from a memory to cause a device equipped with the chip to perform some or all of the steps of the terminal device described in the above method embodiment.

[0159] An embodiment of the present application further provides a computer-readable storage medium, which stores a computer program for electronic data exchange, and causes a computer to perform some or all of the steps of the network side device described in the above method embodiment.

[0160] An embodiment of the present application further provides a computer program product, which includes a computer program, which is executable and causes a computer to perform some or all of the steps of the terminal device described in the above method embodiment, and which may be a software installation package.

[0161] The steps of the methods or algorithms described in the embodiments of the present application may be implemented in the form of hardware or software instructions executed by a processor. The software instructions may be composed of corresponding software modules. The software modules may be stored in random access memory (RAM), flash memory, read-only memory (ROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), registers, hard disk, mobile hard disk, compact disc (CD)-ROM, or any other storage medium known in the art. An exemplary storage medium may be coupled to a processor, allowing the processor to read and write information from and to the storage medium. Of course, the storage medium may be part of the processor. The processor and the storage medium may be located in an ASIC. The ASIC may also be located in an access network device, a target network device, or a core network device. Of course, the processor and the storage medium may reside as discrete components in the access network device, the target network device, or the core network device.

[0162] Those skilled in the art should be able to recognize the following: In one or more examples above, all or part of the functions described in the embodiments of the present application can be realized by software, hardware, firmware, or any combination thereof. When realized by software, all or part of the functions can be realized in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded into a computer and executed, all or part of the processes or functions described in the embodiments of the present application are executed. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, digital subscriber line (DSL), etc.) or wirelessly (e.g., infrared, radio, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device in which one or more available media are integrated, such as a server, a data center, etc. The available medium may be a magnetic medium (e.g., a soft disk, a hard disk, or a magnetic tape), an optical medium (e.g., a Digital Video Disc (DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), etc.

[0163] The above specific embodiments have further detailedly described the objectives, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above are only specific embodiments of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application, and any modifications, equivalent replacements and improvements based on the technical solutions of the embodiments of the present application should all be included in the protection scope of the embodiments of the present application.

Claims

1. A resource configuration method, comprising: Obtaining configuration information used to indicate random access resources of at least one transmission / reception point (TRP) among a plurality of TRPs; performing random access based on the setting information; Including, A resource setting method comprising:

2. Each of the plurality of TRPs corresponds to a set of random access resources.

2. The method of claim 1 .

3. The plurality of TRPs include a first TRP and a second TRP, and the configuration information includes a first random access resource of the first TRP and / or a second random access resource of the second TRP; 3. The method of claim 2.

4. the first random access resource is a resource corresponding to a first physical cell identifier (PCI); the second random access resource is a resource corresponding to a second PCI; the first PCI is a PCI of a serving cell; and the second PCI is a PCI of any one of one or more non-serving cells.

4. The method of claim 3.

5. The second random access resource is available if the second PCI is a PCI of a non-serving cell associated with an active transmission configuration indication (TCI) state used for a physical downlink shared channel (PDSCH).

5. The method of claim 4.

6. The plurality of TRPs corresponds to a set of random access resources.

2. The method of claim 1 .

7. A set of random access resources corresponding to the plurality of TRPs includes preamble information associated with at least one TRP among the plurality of TRPs in one random access channel opportunity (RO); 7. The method of claim 6.

8. A set of random access resources corresponding to the plurality of TRPs includes a first type of random access configured for a terminal device, and the number of preambles associated with each synchronization signal and physical broadcast channel (PBCH) block (SSB) associated with each RO related to the first type of random access is X1, where X1 is an integer; 7. The method of claim 6.

9. The at least one TRP includes a first TRP and a second TRP, and among the X1 preambles associated with each SSB, the first X1-L1 preambles are associated with the first TRP and the last L1 preambles are associated with the second TRP, where L1 is an integer.

9. The method of claim 8.

10. The set of random access resources corresponding to the plurality of TRPs further includes a second type of random access configured for the terminal device, and the first type of random access and the second type of random access each correspond to a set of physical random access channel (PRACH) configurations, and in one random access channel opportunity (RO), preamble information associated with the at least one TRP is associated with the first type of random access and / or the second type of random access.

10. The method according to claim 8 or 9.

11. The set of random access resources corresponding to the plurality of TRPs includes a first type of random access and a second type of random access configured for a terminal device, the first type of random access and the second type of random access share the same set of PRACH configurations, the number of preambles associated with each synchronization signal and physical broadcast channel (PBCH) block (SSB) associated with each RO associated with the first type of random access is Q, the number of preambles associated with each SSB associated with each RO associated with the second type of random access is P, and the Q and the P are integers.

8. The method of claim 7.

12. The at least one TRP includes a first TRP and a second TRP, and among the Q preambles, the first Q-L2 preambles are associated with the first TRP and the last L2 preambles are associated with the second TRP, where L2 is an integer.

12. The method of claim 11 .

13. The at least one TRP includes a first TRP and a second TRP, and among the P preambles, the first P-L3 preambles are associated with the first TRP and the last L3 preambles are associated with the second TRP, where L3 is an integer.

13. The method according to claim 11 or 12.

14. The set of random access resources corresponding to the plurality of TRPs includes information of an RO associated with at least one TRP among the plurality of TRPs; 7. The method of claim 6.

15. The at least one TRP includes a first TRP and a second TRP, the first TRP is associated with T ROs, the second TRP is associated with M-T ROs, M is the number of ROs to which one synchronization signal and physical broadcast channel (PBCH) block (SSB) are mapped, and T is an integer.

15. The method of claim 14.

16. The indexes of the T ROs in the M ROs are consecutive, or the indexes of the T ROs in the M ROs are not consecutive.

16. The method of claim 15.

17. A resource configuration method, comprising: transmitting configuration information used to indicate random access resources of at least one transmission / reception point (TRP) among a plurality of TRPs; A resource setting method comprising:

18. A resource setting device, an acquiring unit configured to acquire configuration information used to indicate random access resources of at least one transmission / reception point (TRP) among a plurality of TRPs; a random access unit configured to perform random access based on the setting information; Equipped with A resource setting device comprising:

19. A resource setting device, a transmitting unit configured to transmit configuration information used to indicate random access resources of at least one transmission / reception point (TRP) among a plurality of TRPs; A resource setting device comprising:

20. A terminal device, a processor, a memory, and one or more programs; The one or more programs are stored in the memory and configured to be executed by the processor, the programs including instructions for performing the steps of the method according to any one of claims 1 to 16. A terminal device characterized by:

21. A network device, a processor, a memory, and one or more programs; The one or more programs are stored in the memory and configured to be executed by the processor, the programs including instructions for performing the steps of the method of claim 17. A network device comprising:

22. 1. A computer-readable storage medium, comprising: The computer-readable storage medium stores a computer program for electronic data exchange, the computer program causing a computer to perform the method according to any one of claims 1 to 16 or the method according to claim 17. A computer-readable storage medium comprising:

23. A chip, The chip is configured to obtain configuration information used to indicate random access resources of at least one transmission / reception point (TRP) among a plurality of TRPs, and to perform random access based on the configuration information. A chip characterized by:

24. A chip module including a transmitting / receiving element and a chip, The chip is configured to obtain configuration information used to indicate random access resources of at least one transmission / reception point (TRP) among a plurality of TRPs, and to perform random access based on the configuration information. A chip module characterized by:

25. A chip, The chip is configured to transmit configuration information used to indicate random access resources of at least one transmission / reception point (TRP) among a plurality of TRPs. A chip characterized by:

26. A chip module including a transmitting / receiving element and a chip, The chip is configured to transmit configuration information used to indicate random access resources of at least one transmission / reception point (TRP) among a plurality of TRPs. A chip module characterized by:

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