Signal Processing Method, Apparatus, Device, and Storage Medium

Abstract

The embodiments of the present application relate to the field of mobile communication technologies, and disclose a signal processing method, apparatus, device, and storage medium. The method is applied to a Remote Radio Unit (RRU), and the method includes: receiving a first Synchronization Signal Block (SSB) beam sent by a Baseband Processing Unit (BBU); determining a second Pico corresponding to the first SSB beam from a plurality of Picos corresponding to the RRU based on a first mapping relationship between the SSB beam and a Pico Base Station (PICO), where the first mapping relationship is configured by the BBU; and sending the first SSB beam through the second Pico. By adopting the embodiments of the present application, the transmission efficiency of the SSB beam can be improved, the transmission power can be reduced, and the applicability is high.

Description

Technical Field

[0001] This application relates to the field of mobile communication technologies, and in particular, to a signal processing method, apparatus, device, and storage medium. Background Art

[0002] Cell merging refers to the situation in a mobile communication system where, in an indoor distribution system or a high-speed scenario, the coverage radius of each Radio Remote Unit (RRU) is relatively small, and frequent cell reselection and handover occur due to the movement of terminals, seriously affecting communication quality. The solution is to expand the coverage area of the cell. Cell merging uses optical fibers to combine the baseband signals of RRUs installed at different base station sites into one cell through a Building Base band Unit (BBU), thereby expanding the coverage area of the cell.

[0003] In the above scenario, downlink signals are mainly transmitted by pico base stations (PICOs) corresponding to multiple points of a Radio Remote Unit Hub (RHUB). For example, synchro signal block (SSB) beams are transmitted based on PICOs at multiple points. However, when SSB beams are simultaneously transmitted by PICOs at multiple points, since users may not receive downlink signals at every PICO point, simultaneous transmission of downlink signals by all PICOs at all points will result in power waste. Summary of the Invention

[0004] Embodiments of this application provide a signal processing method, apparatus, device, and storage medium, which can improve the transmission efficiency of SSB beams, reduce the transmission power, and have high applicability.

[0005] On the one hand, embodiments of this application provide a signal processing method applied to a Radio Remote Unit Hub (RHUB). The method includes:

[0006] Receiving a first synchro signal block (SSB) beam sent by a Building Base band Unit (BBU);

[0007] Based on a first mapping relationship between the SSB beam and a pico base station (PICO), determining a second PICO corresponding to the first SSB beam from multiple first PICOs corresponding to the RHUB, where the first mapping relationship is configured by the BBU;

[0008] Sending the first SSB beam through the second PICO.

[0009] On the other hand, embodiments of this application provide a signal processing method applied to a Building Base band Unit (BBU). The method includes:

[0010] Determine the first mapping relationship between the Synchronization Signal Block (SSB) beam and the pico base station (PICO);

[0011] Send the above first mapping relationship to the Remote Radio Head Unit (RHUB), where the above RHUB corresponds to multiple first PICOs;

[0012] Send the first SSB beam to the above RHUB, so that the above RHUB determines the second PICO corresponding to the first SSB beam from multiple above first PICOs based on the above first mapping relationship, and sends the first SSB beam through the second PICO.

[0013] On the other hand, an embodiment of the present application provides a signal processing device, and the above device includes:

[0014] A receiving unit, configured to receive the first Synchronization Signal Block (SSB) beam sent by the Baseband Processing Unit (BBU);

[0015] A first determination unit, configured to determine the second PICO corresponding to the first SSB beam from multiple first PICOs corresponding to the Remote Radio Head Unit (RHUB) based on the first mapping relationship between the SSB beam and the pico PICO, where the above first mapping relationship is configured by the above BBU;

[0016] A first sending unit, configured to send the first SSB beam through the second PICO.

[0017] Optionally, the above first sending unit is configured to:

[0018] If the first SSB beam is a frequency-domain signal, convert the first SSB beam into a time-domain signal through the second PICO and then send it; or,

[0019] If the first SSB beam is a time-domain signal, directly send the first SSB beam through the second PICO.

[0020] Optionally, the first SSB beam is a time-domain signal, and the above first sending unit is further configured to:

[0021] Determine the time slot where the first SSB is located;

[0022] Convert other frequency-domain signals corresponding to the second PICO in the time slot into time-domain signals and send them through the second PICO.

[0023] Optionally, the above first mapping relationship includes:

[0024] If the number of SSB beams configured by the above BBU is greater than or equal to the number of PICOs to be configured, each of the above PICOs to be configured corresponds to at least one of the SSB beams configured by the above BBU; or,

[0025] If the number of SSB beams configured by the above BBU is less than the number of PICOs to be configured, then each SSB beam configured by the above BBU corresponds to at least one of the above PICOs to be configured.

[0026] Optionally, the above receiving unit is further configured to:

[0027] Obtain the physical random access channel PRACH information received by each of the above first PICOs, and each of the above PRACH information corresponds to a user equipment UE;

[0028] The above first sending unit is further configured to:

[0029] Merge each of the above PRACH information and send it to the above BBU, so that the above BBU determines the UE corresponding to each of the above first PICOs based on each of the above PRACH information.

[0030] Optionally, the above receiving unit is further configured to:

[0031] Obtain the resource configuration table corresponding to each of the above first PICOs, and the resource configuration table corresponding to each of the above first PICOs is used to indicate the UE corresponding to the above first PICOs, and each of the above resource configuration tables is configured by the above BBU;

[0032] The above first sending unit is further configured to:

[0033] For each of the above UEs, based on each of the above resource configuration tables, determine at least one target first PICO corresponding to each of the above UEs, and merge the uplink signals received through each of the above target first PICOs and send them to the above BBU.

[0034] Optionally, the resource configuration table corresponding to each of the above first PICOs is further used to indicate the configured resources occupied by the uplink signals sent by the UE corresponding to the above first PICOs; for each of the above UEs, the above first sending unit is configured to:

[0035] Determine the target configured resources corresponding to the above UEs in the resource configuration table corresponding to each of the above target first PICOs;

[0036] Merge the uplink signals received through each of the above target first PICOs corresponding to the above target configured resources and send them to the above BBU.

[0037] Optionally, the above receiving unit is configured to:

[0038] In each time unit, obtain the resource configuration table corresponding to each of the above first PICOs from the above BBU.

[0039] Optionally, the first determining unit is configured to:

[0040] Obtain a resource configuration table corresponding to each first PICO corresponding to the RHUB, where the resource configuration table corresponding to each first PICO is used to indicate the UE corresponding to the first PICO, and each of the resource configuration tables is configured by the BBU;

[0041] Determine the target UE corresponding to the first SSB beam, and based on the first mapping relationship between the SSB beam and the pico base station PICO, determine the first PICO corresponding to the target UE as the second PICO corresponding to the first SSB beam.

[0042] On the other hand, an embodiment of the present application provides a signal processing device, and the device includes:

[0043] A second determining unit, configured to determine a first mapping relationship between a synchronization signal block SSB beam and a pico base station PICO;

[0044] A second sending unit, configured to send the first mapping relationship to a radio frequency remote hub RHUB, where the RHUB corresponds to a plurality of first PICO;

[0045] The second sending unit is configured to send a first SSB beam to the RHUB, so that the RHUB determines a second PICO corresponding to the first SSB beam from a plurality of the first PICO based on the first mapping relationship, and sends the first SSB beam through the second PICO.

[0046] Optionally, the first mapping relationship includes:

[0047] If the number of SSB beams configured by the BBU is greater than or equal to the number of PICO to be configured, then each of the PICO to be configured corresponds to at least one of the SSB beams configured by the BBU; or,

[0048] If the number of SSB beams configured by the BBU is less than the number of PICO to be configured, then each of the SSB beams configured by the BBU corresponds to at least one of the PICO to be configured.

[0049] Optionally, the second determining unit is further configured to:

[0050] Obtain physical random access channel PRACH information sent by each user equipment UE, where each of the PRACH information corresponds to one of the UE, and each of the PRACH information is received and combined by the RHUB through each of the first PICO and then sent to the BBU;

[0051] Determine the UE corresponding to each of the above-mentioned first PICOs based on each of the above-mentioned PRACH information.

[0052] Optionally, the above-mentioned second determination unit is configured to:

[0053] Determine the PRACH resources corresponding to each of the above-mentioned PRACH information;

[0054] For each of the above-mentioned first PICOs, based on the second mapping relationship between the PRACH resources and the SSB beams, and the above-mentioned first mapping relationship, determine the target PRACH information received by the above-mentioned first PICO, and determine the UE corresponding to the above-mentioned target PRACH information as the UE corresponding to the above-mentioned first PICO.

[0055] Optionally, the above-mentioned second determination unit is further configured to:

[0056] Obtain the SSB measurement information sent by each UE, and determine the SSB beams corresponding to each of the above-mentioned SSB measurement information;

[0057] Based on the above-mentioned first mapping relationship, determine the first PICO corresponding to each of the above-mentioned SSB measurement information;

[0058] Based on the first PICO corresponding to each of the above-mentioned SSB measurement information, determine the UE corresponding to each of the above-mentioned first PICOs.

[0059] Optionally, the above-mentioned second determination unit is further configured to:

[0060] Determine the resource configuration table corresponding to each of the above-mentioned first PICOs, and the resource configuration table corresponding to each of the above-mentioned first PICOs is used to indicate the UE corresponding to the above-mentioned first PICO;

[0061] The above-mentioned second sending unit is further configured to:

[0062] Send each of the above-mentioned resource configuration tables to the above-mentioned RHUB, so that the above-mentioned RHUB merges the uplink signals sent by the same UE based on each of the above-mentioned resource configuration tables and then sends them to the above-mentioned BBU.

[0063] Optionally, the resource configuration table corresponding to each of the above-mentioned first PICOs is further used to indicate the configuration resources occupied by the uplink signals sent by the UE corresponding to the above-mentioned first PICO.

[0064] Optionally, the above-mentioned second sending unit is configured to:

[0065] Update the resource configuration table corresponding to each of the above-mentioned first PICOs in each time unit, and send each updated resource configuration table to the above-mentioned RHUB.

[0066] On the other hand, an embodiment of the present application provides a Remote Radio Head Unit (RHUB), including a memory, a transceiver, and a processor:

[0067] The memory is used to store computer programs; the transceiver is used to transmit and receive data under the control of the above-mentioned processor; the processor is used to read the computer programs in the above-mentioned memory and perform the following operations:

[0068] Receive the first Synchronization Signal Block (SSB) beam sent by a Baseband Processing Unit (BBU);

[0069] Based on the first mapping relationship between the SSB beam and a Pico Base Station (PICO), determine the second PICO corresponding to the first SSB beam from multiple first PICOs corresponding to the above RHUB, where the first mapping relationship is configured by the above BBU;

[0070] Transmit the first SSB beam through the above-mentioned second PICO.

[0071] Optionally, when transmitting the first SSB beam through the above-mentioned second PICO, the above-mentioned processor is used to:

[0072] If the first SSB beam is a frequency-domain signal, convert the first SSB beam into a time-domain signal through the above-mentioned second PICO and then transmit it; or,

[0073] If the first SSB beam is a time-domain signal, directly transmit the first SSB beam through the above-mentioned second PICO.

[0074] Optionally, when the first SSB beam is a time-domain signal, the above-mentioned processor is further used to:

[0075] Determine the time slot where the first SSB is located;

[0076] Convert other frequency-domain signals corresponding to the second PICO in the above time slot into time-domain signals through the above-mentioned second PICO and then transmit them.

[0077] Optionally, the above-mentioned first mapping relationship includes:

[0078] If the number of SSB beams configured by the above BBU is greater than or equal to the number of PICOs to be configured, each of the above PICOs to be configured corresponds to at least one of the SSB beams configured by the above BBU; or,

[0079] If the number of SSB beams configured by the above BBU is less than the number of PICOs to be configured, each of the SSB beams configured by the above BBU corresponds to at least one of the above PICOs to be configured.

[0080] Optionally, the above-mentioned processor is further used to:

[0081] Obtain the physical random access channel (PRACH) information received by each of the above-mentioned first Picos, and each of the above-mentioned PRACH information corresponds to a user equipment (UE);

[0082] After merging each of the above-mentioned PRACH information, send it to the above-mentioned BBU, so that the above-mentioned BBU determines the UE corresponding to each of the above-mentioned first Picos based on each of the above-mentioned PRACH information.

[0083] Optionally, the above-mentioned processor is further configured to:

[0084] Obtain the resource configuration table corresponding to each of the above-mentioned first Picos, and the resource configuration table corresponding to each of the above-mentioned first Picos is used to indicate the UE corresponding to the above-mentioned first Pico, and each of the above-mentioned resource configuration tables is configured by the above-mentioned BBU;

[0085] For each of the above-mentioned UEs, based on each of the above-mentioned resource configuration tables, determine at least one target first Pico corresponding to each of the above-mentioned UEs, and merge the uplink signals received through each of the above-mentioned target first Picos and send them to the above-mentioned BBU.

[0086] Optionally, the resource configuration table corresponding to each of the above-mentioned first Picos is further used to indicate the configured resources occupied by the uplink signals sent by the UE corresponding to the above-mentioned first Pico; for each of the above-mentioned UEs, when the above-mentioned uplink signals sent by the above-mentioned UE received through each of the above-mentioned target first Picos are merged and sent to the above-mentioned BBU, the above-mentioned processor is used to:

[0087] Determine the target configured resources corresponding to the above-mentioned UE in the resource configuration table corresponding to each of the above-mentioned target first Picos;

[0088] Merge the uplink signals received through each of the above-mentioned target first Picos on the corresponding target configured resources and send them to the above-mentioned BBU.

[0089] Optionally, when obtaining the resource configuration table corresponding to each of the above-mentioned first Picos, the above-mentioned processor is used to:

[0090] In each time unit, obtain the resource configuration table corresponding to each of the above-mentioned first Picos from the above-mentioned BBU.

[0091] Optionally, when determining the second Pico corresponding to the above-mentioned first SSB beam from the multiple first Picos corresponding to the above-mentioned RHUB based on the first mapping relationship between the SSB beam and the pico base station (Pico), the above-mentioned processor is used to:

[0092] Obtain the resource configuration tables corresponding to each first PICO corresponding to the above RHUB. The resource configuration table corresponding to each first PICO is used to indicate the UE corresponding to the first PICO, and each of the above resource configuration tables is configured by the above BBU;

[0093] Determine the target UE corresponding to the above first SSB beam. Based on the first mapping relationship between the SSB beam and the pico base station PICO, determine the first PICO corresponding to the target UE as the second PICO corresponding to the above first SSB beam.

[0094] On the other hand, an embodiment of the present application provides a baseband processing unit BBU, including a memory, a transceiver, and a processor:

[0095] The memory is used to store computer programs; the transceiver is used to transmit and receive data under the control of the above processor; the processor is used to read the computer programs in the above memory and perform the following operations:

[0096] Determine the first mapping relationship between the synchronization signal block SSB beam and the pico base station PICO;

[0097] Send the above first mapping relationship to the radio frequency remote hub RHUB, and the above RHUB corresponds to multiple first PICOs;

[0098] Send the first SSB beam to the above RHUB, so that the above RHUB determines the second PICO corresponding to the above first SSB beam from multiple above first PICOs based on the above first mapping relationship, and sends the above first SSB beam through the above second PICO.

[0099] Optionally, the above first mapping relationship includes:

[0100] If the number of SSB beams configured by the above BBU is greater than or equal to the number of PICOs to be configured, then each of the above PICOs to be configured corresponds to at least one of the SSB beams configured by the above BBU; or,

[0101] If the number of SSB beams configured by the above BBU is less than the number of PICOs to be configured, then each of the SSB beams configured by the above BBU corresponds to at least one of the above PICOs to be configured.

[0102] Optionally, the above processor is further used to:

[0103] Obtain the physical random access channel PRACH information sent by each user equipment UE. Each of the above PRACH information corresponds to one of the above UEs, and each of the above PRACH information is received by the above RHUB through each of the above first PICOs and then merged and sent to the above BBU;

[0104] Determine the UE corresponding to each of the above-mentioned first PICOs based on each of the above-mentioned PRACH information.

[0105] Optionally, when determining the UE corresponding to each of the above-mentioned first PICOs based on each of the above-mentioned PRACH messages, the above-mentioned processor is used to:

[0106] Determine the PRACH resources corresponding to each of the above-mentioned PRACH information;

[0107] For each of the above-mentioned first PICOs, based on the second mapping relationship between the PRACH resources and the SSB beams, and the above-mentioned first mapping relationship, determine the target PRACH information received by the above-mentioned first PICO, and determine the UE corresponding to the above-mentioned target PRACH information as the UE corresponding to the above-mentioned first PICO.

[0108] Optionally, the above-mentioned processor is further used to:

[0109] Obtain the SSB measurement information sent by each UE, and determine the SSB beams corresponding to each of the above-mentioned SSB measurement information;

[0110] Based on the above-mentioned first mapping relationship, determine the first PICO corresponding to each of the above-mentioned SSB measurement information;

[0111] Based on the first PICO corresponding to each of the above-mentioned SSB measurement information, determine the UE corresponding to each of the above-mentioned first PICOs.

[0112] Optionally, after determining the UE corresponding to each of the above-mentioned first PICOs, the above-mentioned processor is further used to:

[0113] Determine the resource configuration table corresponding to each of the above-mentioned first PICOs, and the resource configuration table corresponding to each of the above-mentioned first PICOs is used to indicate the UE corresponding to the above-mentioned first PICO;

[0114] Send each of the above-mentioned resource configuration tables to the above-mentioned RHUB, so that the above-mentioned RHUB merges the uplink signals sent by the same UE based on each of the above-mentioned resource configuration tables and then sends them to the above-mentioned BBU.

[0115] Optionally, the resource configuration table corresponding to each of the above-mentioned first PICOs is further used to indicate the configured resources occupied by the uplink signals sent by the UE corresponding to the above-mentioned first PICO.

[0116] Optionally, when sending each of the above-mentioned resource configuration tables to the above-mentioned RHUB, the above-mentioned processor is used to:

[0117] Update the resource configuration table corresponding to each of the above-mentioned first PICOs in each time unit, and send each updated resource configuration table to the above-mentioned RHUB.

[0118] On the other hand, an embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, any signal processing method provided by the embodiment of the present application is implemented.

[0119] Based on the signal processing method provided by the embodiment of the present application, when the RHUB receives the SSB beam sent by the BBU, the SSB beam can be sent through the PICO corresponding to the SSB beam, improving the transmission efficiency of the SSB beam, reducing the transmission power, and having high applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0120] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the description of the embodiments of the present application. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0121] Figure 1 is a flowchart of a signal processing method provided by an embodiment of the present application;

[0122] Figure 2 is a schematic diagram of the relationship between the BBU and the RHUB provided by an embodiment of the present application;

[0123] Figure 3 is another flowchart of a signal processing method provided by an embodiment of the present application;

[0124] Figure 4 is a schematic structural diagram of a signal processing device provided by an embodiment of the present application;

[0125] Figure 5 is another schematic structural diagram of a signal processing device provided by an embodiment of the present application;

[0126] Figure 6 is a schematic structural diagram of an electronic device provided by an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0127] In the embodiments of the present application, the term "and / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0128] In the embodiments of the present application, the term "plurality" refers to two or more, and other quantifiers are similar.

[0129] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0130] In addition, the technical solutions provided in the embodiments of the present application can be applied to a variety of systems, especially 5G systems. For example, the applicable systems can be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD) system, a long term evolution advanced (LTE-A) system, a universal mobile telecommunication system (UMTS), a worldwide interoperability for microwave access (WiMAX) system, a 5G new radio (NR) system, etc. All of these various systems include user equipment (UE), RHUB, and BBU. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0131] The user equipment UE involved in the embodiments of this application can be a device that provides voice and / or data connectivity to users, such as a handheld device with wireless connection capabilities, or other processing devices connected to a wireless modem, etc. In different systems, the name of the user equipment may also be different. For example, the user equipment can be called a wireless terminal. The wireless terminal can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal. For example, the user equipment can also be a portable, pocket-sized, handheld, computer-integrated, or vehicle-mounted mobile device that exchanges voice and / or data with the radio access network. For example, devices such as personal communication service (PCS) phones, cordless phones, session initiated protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), etc. The wireless terminal can also be called a system, subscriber unit, subscriber station, mobile station, mobile, remote station, access point, remote terminal, access terminal, user agent, user device, which is not limited in the embodiments of this application.

[0132] The RHUB and BBU involved in the embodiments of the present application can be located in network devices of various communication systems. Among them, the network device can be a base station, which can include multiple cells that provide services to terminals. According to different specific application scenarios, the base station can also be called an access point, or can be a device in the access network that communicates with wireless terminals through one or more sectors on the air interface, or other names. The network device can be used to mutually replace the received air frames and Internet Protocol (IP) packets, and act as a router between the wireless terminal and the rest of the access network, where the rest of the access network can include an Internet Protocol (IP) communication network. The network device can also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present application can be a network device (Base Transceiver Station, BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), or a network device (NodeB) in a Wide-band Code Division Multiple Access (WCDMA), or an evolved network device (evolutional Node B, eNB or e-NodeB) in a Long Term Evolution (LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), or a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc. The embodiments of the present application do not limit this. In some network architectures, the network device can include a centralized unit (centralized unit, CU) node and a distributed unit (distributed unit, DU) node, and the centralized unit and the distributed unit can also be arranged separately geographically.

[0133] Between a network device and a user device, one or more antennas can be used respectively for multi-input multi-output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). According to the form and quantity of the combined antennas, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can also be diversity transmission, precoding transmission, beamforming transmission, etc.

[0134] See Figure 1 , Figure 1 is a schematic flowchart of a signal processing method provided by an embodiment of the present application. The signal processing method provided by the embodiment of the present application is applicable to a radio frequency remote hub (RHUB), and specifically may include the following steps:

[0135] Step S11: Receive the first synchronization signal block (SSB) beam sent by a baseband processing unit (BBU).

[0136] In some feasible implementation manners, the first SSB beam is a downlink signal that the BBU needs to send to a user equipment (UE) through a PICO corresponding to the RHUB, and it can be any SSB beam configured by the BBU.

[0137] Among them, the BBU can correspond to multiple RHUBs, each RHUB corresponds to multiple PICOs, and the first SSB beam sent by the BBU can be sent through any PICO corresponding to any RHUB.

[0138] Step S12: Based on the first mapping relationship between the SSB beam and a pico base station (PICO), determine the second PICO corresponding to the first SSB beam from multiple first PICOs corresponding to the RHUB.

[0139] Among them, the RHUB corresponds to at least one PICO. For the convenience of description, each PICO corresponding to the RHUB is hereinafter referred to as a first PICO.

[0140] In some feasible implementation manners, the first mapping relationship between the SSB beam and the PICO is used to indicate the corresponding relationship between each SSB beam configured by the BBU and the first PICO used to send each SSB beam, that is, it is used to indicate the first PICO that sends each SSB beam configured by the BBU.

[0141] After receiving the first SSB beam sent by the BBU, the RHUB can, based on the first mapping relationship between the SSB beam and the PICO, determine the second PICO used to send the first SSB beam from multiple first PICOs corresponding to the RHUB.

[0142] Among them, the first mapping relationship between the SSB beam and the PICO is configured by the BBU and sent to the RHUB.

[0143] Optionally, when the BBU corresponds to multiple RHUBs, each RHUB may correspond to an independent first mapping relationship, and the first mapping relationship corresponding to each RHUB can be used to indicate the SSB beams sent by multiple first PICOs corresponding to the RHUB.

[0144] In some feasible embodiments, the first mapping relationship between the SSB beam configured by the BBU and the PICO includes:

[0145] If the number of SSB beams configured by the BBU is greater than or equal to the number of PICOs to be configured, then each PICO to be configured corresponds to at least one SSB beam configured by the BBU; or,

[0146] If the number of SSB beams configured by the BBU is less than the number of PICOs to be configured, then each SSB beam configured by the BBU corresponds to at least one PICO to be configured.

[0147] Among them, the above PICOs to be configured are some or all of the first PICOs corresponding to each RHUB.

[0148] Specifically, when the number of SSB beams configured by the BBU is greater than the number of PICOs to be configured, each PICO to be configured corresponds to at least one SSB beam configured by the BBU, and the SSB beams configured by the BBU corresponding to any two PICOs to be configured can be the same or different, and no limitation is made here.

[0149] For example, every preset number of SSB beams configured by the BBU can correspond to one PICO to be configured, and the SSB beams configured by the BBU corresponding to each PICO to be configured are different from the SSB beams of other pairs of PICOs to be configured.

[0150] As an example, assume that the number of SSB beams configured by the BBU is 8, the SSB beam index is b, the number of PICOs to be configured is 4, and the PICO index is m. Then the first mapping relationship between the SSB beam and the PICO can be:

[0151]

[0152] For another example, the SSB beams configured by each preset number of BBU can correspond to a PICO to be configured, and the SSB beams corresponding to each PICO to be configured are different from those of other PICO pairs to be configured, and the index interval between the SSB beams configured by the BBU corresponding to each PICO to be configured is the same as the index interval between the SSB beams configured by the BBU corresponding to other PICO pairs to be configured.

[0153] As an example, assume that the number of SSB beams configured by the BBU is 8, the SSB beam index is b, the number of PICOs to be configured is 4, and the PICO index is m. Then the first mapping relationship between the SSB beam and the PICO can be:

[0154]

[0155] Specifically, when the number of SSB beams configured by the BBU is less than the number of PICOs to be configured, each SSB beam configured by the BBU corresponds to at least one PICO to be configured, and the PICOs to be configured corresponding to any two SSB beams configured by the BBU can be the same or different, which is not restricted here.

[0156] For example, each SSB beam corresponds to at least one PICO to be configured, and the PICOs to be configured corresponding to any two SSB beams can be the same or different, which can be specifically determined based on the requirements of the actual application scenario and is not restricted here.

[0157] As an example, assume that the number of SSB beams configured by the BBU is 4, the SSB beam index is b, the number of PICOs to be configured is 8, and the PICO index is m. Then the first mapping relationship between the SSB beam and the PICO can be:

[0158]

[0159] For another example, each preset number of PICOs to be configured can correspond to an SSB beam configured by the BBU, and the PICOs to be configured corresponding to each SSB beam configured by the BBU are different from those corresponding to other SSB beams, and the index interval of the PICOs to be configured corresponding to each SSB beam configured by the BBU is the same as the index interval of the PICOs to be configured corresponding to other SSB beams configured by the BBU.

[0160] As an example, assume that the number of SSB beams configured by the BBU is 4, the SSB beam index is b, the number of PICOs to be configured is 8, and the PICO index is m. Then the first mapping relationship between the SSB beam and the PICO can be:

[0161]

[0162] Specifically, when the number of SSB beams configured in the BBU is equal to the number of PICOs to be configured, each SSB beam corresponds to one PICO to be configured, any two SSB beams correspond to different PICOs to be configured, and any SSB beam can correspond to any PICO to be configured.

[0163] As an example, assume that the number of SSB beams configured in the BBU is 4, the SSB beam index is b, the number of PICOs to be configured is 8, and the PICO index is m. Then the first mapping relationship between the SSB beam and the PICO can be:

[0164] SSB beam index b PICO index m 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8

[0165] It should be particularly noted that the above-mentioned manner of the first mapping relationship between the SSB beam and the PICO is only an example. As long as each PICO to be configured corresponds to at least one SSB beam configured in the BBU when the number of SSB beams configured in the BBU is greater than or equal to the number of PICOs to be configured, or each SSB beam corresponds to at least one PICO to be configured when the number of SSB beams configured in the BBU is less than the number of PICOs to be configured, it can be specifically determined based on the actual application scenario requirements and is not limited here.

[0166] It should be particularly noted that all SSB beams configured in the BBU can have a first mapping relationship with the first PICO corresponding to each RHUB, and the first mapping relationship between the SSB beam corresponding to each RHUB and the first PICO corresponding to that RHUB can be as shown above and will not be elaborated here.

[0167] Among them, the above-mentioned first mapping relationship between the SSB beam and the PICO can also be the first mapping relationship between some SSB beams among all SSB beams configured in the BBU and each first PICO, which will not be elaborated here. And in this case, if the RHUB cannot determine the second PICO corresponding to the first SSB beam based on the first mapping relationship, any one or more first PICOs can be determined as the second PICO corresponding to the first SSB beam.

[0168] Step S13: Send the first SSB beam through the second PICO.

[0169] In some feasible implementation manners, when the RHUB sends the first SSB beam through the second PICO, it can be sent based on the time-frequency domain type of the first SSB beam.

[0170] Specifically, if the first SSB beam is a frequency-domain signal, the first SSB beam can be directly sent after being converted into a time-domain signal by the second PICO.

[0171] Among them, for other frequency-domain signals outside the SSB beam, they can also be sent after being converted into time-domain signals through the corresponding first PICO.

[0172] Optionally, if the first SSB beam is a time-domain signal, the first SSB beam can be directly sent through the second PICO.

[0173] Among them, when sending the first SSB beam of the time-domain signal through the second PICO, the time slot where the first SSB is located can be determined, and other frequency-domain signals corresponding to the second PICO within this time slot are converted into time-domain signals through the second PICO and then sent.

[0174] That is, for the second PICO, the second PICO can only send other time-domain signals corresponding to the second PICO within the time slot where the first SSB beam is located.

[0175] In some feasible implementation manners, the signal processing method provided by the embodiments of the present application further includes:

[0176] Obtain the Physical Random Access Channel (PRACH) information received by each first PICO, and each PRACH information corresponds to a UE;

[0177] Merge each PRACH information and send it to the BBU, so that the BBU determines the UE corresponding to each first PICO based on each PRACH information.

[0178] Among them, any PRACH information is the information sent by the UE for establishing a communication connection with the network, that is, the PRACH information for the UE to initiate random access. Any UE can send the PRACH information to the network through any first PICO.

[0179] Among them, the UE corresponding to each of the above first PICO is the UE corresponding to the PRACH information received by the first PICO.

[0180] Among them, when the RHUB merges each PRACH information and sends it to the BBU, it can digitally merge the PRACH information received by the multiple first PICO corresponding to the RHUB and then send it to the BBU.

[0181] Among them, if there are multiple RHUBs corresponding to the BBU, the PRACH information sent by each UE received by the BBU is the combined signal corresponding to the PRACH information received by each RHUB through the first PICO.

[0182] Such as Figure 2As shown, the BBU corresponds to multiple RHUBs, and each RHUB can also be referred to as a logical PICO. Each RHBU can digitally combine the PRACH information received through each first PICO and then transmit it to the BBU, and there can be multiple levels of cascading of RHUBs.

[0183] Assume that the RHUB is named P(n), where n is the index, n = 1... N, and N is the number of RHUBs. Each RHUB corresponds to M first PICOs, and each first PICO is named P(n,m), where m ranges from 1... M.

[0184] For RHUB1, RHUB1 can obtain the PRACH information received by the first PICOs numbered P(1,m), P(2,m), P(3,m), and P(4,m), and combine and send it to the BBU.

[0185] In some feasible implementation manners, the signal processing method provided by the embodiments of the present application further includes:

[0186] Obtain the resource configuration table corresponding to each first PICO. The resource configuration table corresponding to each first PICO is used to indicate the UE corresponding to the first PICO, and the resource configuration table corresponding to each first PICO is configured by the BBU;

[0187] For each UE, based on each resource configuration table, determine at least one target first PICO corresponding to the UE, and combine the uplink signals sent by the UE received through each target first PICO and send them to the BBU.

[0188] That is, the RHUB can obtain the resource configuration table corresponding to each first PICO from the BBU. Any resource configuration table is used to indicate the UE that sends the uplink signal through the first PICO corresponding to the resource configuration table. The RHUB can determine the corresponding relationship between each first PICO and each UE based on the resource configuration table corresponding to each first PICO.

[0189] Further, for any one of the UEs, the RHUB can determine the target first PICO that can be used to receive the uplink signal sent by the UE based on each resource configuration table, and then combine and send the uplink signals sent by the UE received through each target first PICO to the BBU.

[0190] Among them, for each UE, the uplink signal sent by the UE is the msg3 information and msg5 information sent by the UE during the random access process, or can also be the Physical Uplink Control Channel (PUCCH) signal or Physical Uplink Shared Channel (PUSCH) signal sent by the UE during other communication processes, such as SSB measurement information, which is not limited here.

[0191] In some feasible embodiments, after the RHUB receives the SSB measurement information sent by each UE, the RHUB can obtain the resource configuration table corresponding to each first PICO. The resource configuration table corresponding to each first PICO is used to indicate the UE corresponding to the first PICO, and the resource configuration table corresponding to each first PICO is configured by the BBU.

[0192] Furthermore, the RHUB can determine the UE corresponding to each first PICO according to the resource configuration table corresponding to each first PICO, and based on this, determine the merging method of each SSB measurement information, and merge and send each SSB measurement information to the BBU.

[0193] Among them, the SSB measurement information can be a PUSCH signal.

[0194] As an example, the RHUB receives the PUSCH signals sent by each UE. Based on the resource configuration table corresponding to each first PICO, the UE corresponding to each first PICO can be determined, and then the PUSCH signals sent by the same UE can be merged and sent to the BBU.

[0195] In some feasible embodiments, the resource configuration table corresponding to each first PICO is also used to indicate the configured resources occupied by the uplink signal sent by the UE corresponding to the first PICO. Among them, the above configured resources can be the Physical Resource Blocks (PRBs) occupied by the uplink signal.

[0196] For any first PICO, the resource configuration table corresponding to the first PICO can be used to indicate multiple configured resources. The configured resources indicate the configured resources occupied by the uplink signals sent by different UEs corresponding to the first PICO through different identifiers.

[0197] For example, for any first PICO, if some of the configured resources in the resource configuration table corresponding to the first PICO have the identifier 1, it means that the configured resources with the identifier 1 are the configured resources occupied by the uplink signal sent by the first UE corresponding to the identifier 1.

[0198] Further, for each UE, after combining the uplink signals sent by the UE received through each target first PICO, the signals are sent to the BBU, including:

[0199] Determine the target configured resources corresponding to the UE in the resource configuration table corresponding to each target first PICO;

[0200] After combining the uplink signals on the target configured resources received through each target first PICO, the signals are sent to the BBU.

[0201] That is, for the RHUB, after receiving the uplink signals of each UE through each first PICO, the configured resources occupied by each uplink signal can be determined, and the uplink signals on the target configured resources corresponding to the same UE are combined and then sent to the BBU.

[0202] In some feasible embodiments, the RHUB can obtain the resource configuration table corresponding to each first PICO from the BBU in each time unit. That is, the RHUB can obtain the new resource configuration table corresponding to each first PICO from the BBU in each time unit, so as to combine the subsequent received uplink signals of the same UE based on the new resource configuration table and send them to the BBU.

[0203] Wherein, the above time unit can be a time slot or other time lengths, which is not limited here.

[0204] In some feasible embodiments, when the RHUB receives the first SSB beam sent by the BBU and determines the second PICO corresponding to the first SSB beam from multiple first PICOs, it can obtain the resource configuration tables corresponding to the respective first PICOs of the RHUB, so as to determine the UEs corresponding to the respective first PICOs based on the resource configuration tables corresponding to the respective first PICOs.

[0205] Further, the RHUB can determine the target UE corresponding to the first SSB beam, and then based on the first mapping relationship between the SSB beam and the PICO, determine the first PICO corresponding to the target UE as the second PICO corresponding to the first SSB beam. That is, the RHUB can map the first SSB beam to the first PICO corresponding to the target UE and send it through the air interface, so that the target UE can receive the first SSB beam through the corresponding first PICO (i.e., the second PICO corresponding to the first SSB beam).

[0206] See Figure 3 , Figure 3 is another flowchart of the signal processing method provided by the embodiments of the present application. The signal processing method provided by the embodiments of the present application is applicable to the baseband processing unit BBU, and specifically may include the following steps:

[0207] Step S31: Determine the first mapping relationship between the Synchronization Signal Block (SSB) beam and the pico base station (PICO).

[0208] In some feasible embodiments, the BBU corresponds to at least one RHUB, and each RHUB corresponds to multiple PICOs.

[0209] Among them, the first mapping relationship between the SSB beam and the PICO is used to indicate the corresponding relationship between each SSB beam configured by the BBU and the multiple PICOs corresponding to the RHUB. Each SSB beam configured by the BBU is sent to the UE through the corresponding PICO.

[0210] For the convenience of description, in this embodiment, the PICO corresponding to the RHBU is also referred to as the first PICO.

[0211] Optionally, when the BBU corresponds to multiple RHUBs, the BBU may configure the first mapping relationship between the multiple first PICOs corresponding to each RHUB and the SSB beams configured by the BBU.

[0212] In some feasible embodiments, the first mapping relationship between the SSB beam configured by the BBU and the PICO includes:

[0213] If the number of SSB beams configured by the BBU is greater than or equal to the number of PICOs to be configured, then each PICO to be configured corresponds to at least one SSB beam configured by the BBU; or,

[0214] If the number of SSB beams configured by the BBU is less than the number of PICOs to be configured, then each SSB beam configured by the BBU corresponds to at least one PICO to be configured.

[0215] Among them, the number of the above-mentioned PICOs to be configured is the number of PICOs corresponding to all RHUBs corresponding to the BBU.

[0216] Specifically, when the number of SSB beams configured by the BBU is greater than the number of PICOs to be configured, the BBU may configure each PICO to be configured to correspond to at least one SSB beam configured by the BBU, and the SSB beams configured by the BBU corresponding to any two PICOs to be configured may be the same or different, which can be specifically determined based on the requirements of the actual application scenario and is not limited here.

[0217] For example, the index of the SSB beam configured by the BBU and the index of the PICO to be configured can be determined, and a SSB beam configured by the BBU is assigned to each PICO to be configured in order of the index size. After each PICO to be configured corresponds to one SSB beam, the SSB beams configured by the BBU are re-assigned to each PICO to be configured based on the above method.

[0218] For another example, the index of the SSB beam configured by the BBU and the index of the PICO to be configured can be determined, and an SSB beam configured by the BBU is allocated to each PICO to be configured in sequence according to the index size and a fixed index interval. After each PICO to be configured corresponds to an SSB beam configured by the BBU, the SSB beam configured by the BBU is allocated to each PICO to be configured again based on the above method.

[0219] For another example, the average number of SSB beams configured by the BBU corresponding to each PICO to be configured can be determined first based on the number of PICOs to be configured, and the floor value of the average number is obtained as the allocation number. Further, an SSB beam configured by the BBU that is the same as the allocation number is allocated to each PICO to be configured in sequence according to the index size, and finally the remaining SSB beams are allocated to any one or more PICOs to be configured.

[0220] Specifically, when the number of SSB beams configured by the BBU is less than the number of PICOs to be configured, the BBU can configure each SSB beam configured by the BBU to correspond to at least one PICO to be configured, and the PICOs to be configured corresponding to any two SSB beams configured by the BBU can be the same or different, which can be specifically determined based on the requirements of the actual application scenario and are not limited here.

[0221] For example, the index of the SSB beam configured by the BBU and the index of the PICO to be configured can be determined, and a PICO to be configured is allocated to each SSB beam configured by the BBU in sequence according to the index size. After each SSB beam configured by the BBU corresponds to a PICO to be configured, a PICO to be configured is allocated to each SSB beam configured by the BBU again based on the above method.

[0222] For another example, the index of the SSB beam configured by the BBU and the index of the PICO to be configured can be determined, and a PICO to be configured is allocated to each SSB beam configured by the BBU in sequence according to the index size and a fixed index interval. After each SSB beam configured by the BBU corresponds to a PICO to be configured, a PICO to be configured is allocated to each SSB beam configured by the BBU again based on the above method.

[0223] For another example, the average number of PICOs to be evaluated corresponding to each SSB beam configured by the BBU can be determined first based on the number of PICOs to be configured, and the floor value of the average number is obtained as the allocation number. Further, a PICO to be configured is allocated to each SSB beam configured by the BBU in sequence according to the index size, and finally the remaining PICOs to be configured are allocated to any one or more SSB beams configured by the BBU.

[0224] Specifically, when the number of SSB beams configured by the BBU is equal to the number of PICOs to be configured, the BBU can configure each SSB beam configured by the BBU to correspond to one PICO to be configured, and the PICOs to be configured corresponding to any two SSB beams configured by the BBU are different, and any SSB beam configured by the BBU can correspond to any PICO to be configured.

[0225] It should be particularly noted that the above method for the BBU to determine the first mapping relationship between the SSB beams configured by the BBU and the PICOs is only an example. As long as each PICO to be configured corresponds to at least one SSB beam configured by the BBU when the number of SSB beams configured by the BBU is greater than or equal to the number of PICOs to be configured, or each SSB beam configured by the BBU corresponds to at least one PICO to be configured when the number of SSB beams configured by the BBU is less than the number of PICOs to be configured, it can be specifically determined based on the requirements of the actual application scenario and is not limited here.

[0226] Among them, the above PICOs to be configured are some or all of the first PICOs corresponding to each RHUB.

[0227] It should be particularly noted that the BBU can also configure the first mapping relationship between some of the SSB beams in all the SSB beams and each first PICO based on the above implementation method, which will not be elaborated here.

[0228] Optionally, when the BBU corresponds to multiple RHUBs, the BBU can configure the first mapping relationship between the SSB beams and the multiple first PICOs corresponding to each RHUB, and the configuration method can be as shown above and will not be elaborated here.

[0229] Step S32: Send the first mapping relationship to the radio remote hub RHUB.

[0230] In some feasible implementation manners, if the BBU configures the first mapping relationship between the multiple first PICOs corresponding to each RHUB and the SBB beams, the BBU sends each first mapping relationship to the corresponding RHUB.

[0231] If the BBU configures the first mapping relationship between all the first PICOs corresponding to each RHUB and the SSB beams, the BBU can send the first mapping relationship to each RHUB.

[0232] Step S33: Send the first SSB beam to the RHUB, so that the RHUB determines the first PICO corresponding to the first SSB beam from each first PICO based on the first mapping relationship, and sends the first SSB beam through the first PICO.

[0233] In some feasible embodiments, the BBU may send a first SSB beam to the RHUB, so that the RHUB may determine, based on the mapping relationship between the SSB beam and the PICO, a second PICO for sending the first SSB beam from each first PICO, and thus send the first SSB beam through the second PICO.

[0234] In some feasible embodiments, the signal processing method provided by the embodiments of the present application further includes:

[0235] Obtain the PRACH information sent by each UE, each PRACH information corresponding to a UE, and each PRACH information is received and merged by the RHUB through each first PICO and then sent to the BBU;

[0236] Determine the UE corresponding to each first PICO based on each PRACH information.

[0237] Wherein, any PRACH information is information sent by the UE for establishing a communication connection with the network, that is, the PRACH information for the UE to initiate random access, and any UE may send the PRACH information to the network through any first PICO.

[0238] Wherein, for each UE, the UE may determine the index of the received SSB beam based on the measurement result of the received SSB beam, and then initiate random access based on the PRACH resource corresponding to the index of the SSB beam, that is, send the PRACH information.

[0239] Wherein, the UE corresponding to each of the above-mentioned PICO is the UE corresponding to the PRACH information received by the first PICO.

[0240] In some feasible embodiments, the BBU determines the UE corresponding to each first PICO based on each PRACH information, including:

[0241] Determine the PRACH resource corresponding to each PRACH information;

[0242] For each first PICO, based on the second mapping relationship between the PRACH resource and the SSB beam and the first mapping relationship between the SSB beam and the PICO, determine the target PRACH information received by the first PICO, and determine the UE corresponding to the target PRACH information as the UE corresponding to the first PICO.

[0243] Wherein, for any PRACH information, the PRACH resource corresponding to the PRACH information is the preamble code resource corresponding to the PRACH information.

[0244] Among them, the second mapping relationship between the PRACH resource and the SSB beam is pre-configured by the BBU, and then based on the above first mapping relationship and the first mapping relationship, the target PRACH information received by each first PICO is determined. That is, based on the above first mapping relationship and the second mapping relationship, for any first PICO, the BBU can determine the target PRACH information received through this first PICO.

[0245] Further, for each first PICO, the UE corresponding to the target PRACH information corresponding to this first PICO can be determined as the UE corresponding to this first PICO, that is, the corresponding relationship between each UE and each first PICO can be determined.

[0246] In some feasible embodiments, when the BBU determines the UE corresponding to each first PICO, it can also be determined by receiving the SSB measurement information sent by each UE through the RHUB. Specifically, the BBU analyzes each SSB measurement information to determine the SSB beam corresponding to each SSB measurement information, such as determining the beam number of the SSB beam corresponding to each SSB measurement information.

[0247] Further, the BBU can determine the first PICO corresponding to each SBB measurement information according to the first mapping relationship between the SSB beam and the PICO. Then, based on the mapping relationship between the SSB measurement information and the UE and the first PICO corresponding to each SSB measurement information, the first PICO corresponding to each UE is determined.

[0248] In some feasible embodiments, after determining the UE corresponding to each first PICO, the signal processing method provided by the embodiments of the present application further includes:

[0249] Determine the resource configuration table corresponding to each first PICO, and the resource configuration table corresponding to each first PICO is used to indicate the UE corresponding to this first PICO;

[0250] Send each resource configuration table to the RHUB, so that the RHUB merges the uplink signals sent by the same UE based on each resource configuration table and then sends them to the BBU.

[0251] Among them, the resource configuration table corresponding to each first PICO is specifically used to indicate which UEs' uplink signals can be received through this first PICO.

[0252] Among them, for each UE, the uplink signal sent by the UE is the msg3 information and msg5 information sent by the UE during the random access process, and can also be the PUCCH signal or PUSCH signal sent by the UE during other communication processes, such as SSB measurement information, which is not limited here. In some feasible implementation manners, when determining the resource configuration table corresponding to each first PICO, the BBU can also determine the configured resources occupied by the uplink signal sent by each UE, and then determine the resource configuration table corresponding to each first PICO based on the configured resources occupied by the uplink signal sent by each UE and the corresponding relationship between each first PICO and each UE.

[0253] That is, the resource configuration table corresponding to each first PICO can be used to indicate the configured resources occupied by the uplink signal sent by the UE corresponding to the first PICO. Among them, the above-mentioned configured resources can be the PRBs occupied by the uplink signal.

[0254] For any first PICO, the resource configuration table corresponding to the first PICO can be used to indicate multiple configured resources, and the configured resources indicate the configured resources occupied by the uplink signal sent by each UE corresponding to the first PICO through different identifiers.

[0255] For example, for any first PICO, if some of the configured resources in the resource configuration table corresponding to the first PICO have the identifier 1, it means that the configured resources with the identifier 1 are the configured resources occupied by the uplink signal sent by the first UE corresponding to the identifier 1.

[0256] In some feasible implementation manners, the BBU can update the resource configuration table corresponding to each first PICO in each time unit, and send each updated resource configuration table to the RHUB.

[0257] That is, the BBU can re-determine the UE corresponding to each first PICO and / or the configured resources occupied by the uplink signal sent by the UE corresponding to each first PICO in each time unit to implement the update of the resource configuration table corresponding to each PICO.

[0258] Among them, the above-mentioned time unit can be a time slot or other time lengths, which is not limited here.

[0259] In some feasible implementation manners, in the case where the BBU corresponds to multiple RHUBs, in each time unit, each uplink signal in the uplink signals merged by each RHUB corresponds to a first PICO in one RHUB. That is, when each RHUB merges the uplink signals in each time unit, only the uplink signals received by one first PICO corresponding to each RHUB are merged, thereby further improving the noise suppression effect when merging the uplink signals.

[0260] In the embodiment of the present application, the RHUB can reduce the noise when combining all uplink signals by combining the uplink signals sent by each UE, and improve the cell capacity. Moreover, the RHUB can send any SSB beam sent by the BBU through the corresponding PICO, saving the transmission power and improving the transmission efficiency of the SSB beam.

[0261] The embodiment of the present application also provides a signal processing device, as Figure 4 shown, Figure 4 which is a schematic structural diagram of the signal processing device provided by the embodiment of the present application. The device includes:

[0262] A receiving unit 41, configured to receive a first synchronization signal block (SSB) beam sent by a baseband processing unit (BBU);

[0263] A first determining unit 42, configured to determine a second PICO corresponding to the first SSB beam from a plurality of first PICO corresponding to the radio frequency remote hub (RHUB) based on a first mapping relationship between the SSB beam and the pico, where the first mapping relationship is configured by the BBU;

[0264] A first transmitting unit 43, configured to transmit the first SSB beam through the second PICO.

[0265] In some feasible embodiments, the first transmitting unit 43 is configured to:

[0266] If the first SSB beam is a frequency-domain signal, convert the first SSB beam into a time-domain signal through the second PICO and then transmit it; or,

[0267] If the first SSB beam is a time-domain signal, directly transmit the first SSB beam through the second PICO.

[0268] In some feasible embodiments, when the first SSB beam is a time-domain signal, the first transmitting unit 43 is further configured to:

[0269] Determine the time slot where the first SSB is located;

[0270] Convert other frequency-domain signals corresponding to the second PICO in the time slot into time-domain signals through the second PICO and then transmit them.

[0271] In some feasible embodiments, the first mapping relationship includes:

[0272] If the number of SSB beams configured by the BBU is greater than or equal to the number of PICO to be configured, each of the PICO to be configured corresponds to at least one of the SSB beams configured by the BBU; or,

[0273] If the number of SSB beams configured by the above BBU is less than the number of PICOs to be configured, then each SSB beam corresponds to at least one PICO to be configured.

[0274] In some feasible implementation manners, the above receiving unit 41 is further configured to:

[0275] Obtain physical random access channel (PRACH) information received by each of the above first PICOs, and each of the above PRACH information corresponds to a user equipment (UE);

[0276] The above first sending unit 43 is further configured to:

[0277] Merge each of the above PRACH information and send the merged information to the above BBU, so that the BBU determines the UE corresponding to each of the above first PICOs based on each of the above PRACH information.

[0278] In some feasible implementation manners, the above receiving unit 41 is further configured to:

[0279] Obtain a resource configuration table corresponding to each of the above first PICOs, and the resource configuration table corresponding to each of the above first PICOs is used to indicate the UE corresponding to the first PICO, and each of the above resource configuration tables is configured by the above BBU;

[0280] The above first sending unit 43 is further configured to:

[0281] For each of the above UEs, based on each of the above resource configuration tables, determine at least one target first PICO corresponding to each of the above UEs, and merge the uplink signals received through each of the above target first PICOs and send the merged signals to the above BBU.

[0282] In some feasible implementation manners, the resource configuration table corresponding to each of the above first PICOs is further used to indicate the configured resources occupied by the uplink signals sent by the UE corresponding to the first PICO; for each of the above UEs, the above first sending unit 43 is configured to:

[0283] Determine the target configuration resources corresponding to the UE in the resource configuration table corresponding to each of the above target first PICOs;

[0284] Merge the uplink signals received through each of the above target first PICOs corresponding to the above target configuration resources and send the merged signals to the above BBU.

[0285] In some feasible implementation manners, the above receiving unit 41 is configured to:

[0286] In each time unit, obtain the resource configuration table corresponding to each of the above first PICOs from the above BBU.

[0287] In some feasible embodiments, the above-mentioned first determination unit 42 is further configured to:

[0288] Obtain the resource configuration tables corresponding to each first PICO corresponding to the above RHUB. The resource configuration table corresponding to each first PICO is used to indicate the UE corresponding to the first PICO, and each of the above resource configuration tables is configured by the above BBU;

[0289] Determine the target UE corresponding to the above first SSB beam, and based on the first mapping relationship between the SSB beam and the pico base station PICO, determine the first PICO corresponding to the target UE as the second PICO corresponding to the above first SSB beam.

[0290] An embodiment of the present application further provides a signal processing device, as Figure 5 shown, Figure 5 is another structural schematic diagram of the signal processing device provided by the embodiment of the present application. The above device includes:

[0291] A second determination unit 51, configured to determine the first mapping relationship between the synchronization signal block SSB beam and the pico base station PICO;

[0292] A second sending unit 52, configured to send the above first mapping relationship to a radio frequency remote hub RHUB, and the above RHUB corresponds to multiple first PICO;

[0293] The above second sending unit 52 is configured to send a first SSB beam to the above RHUB, so that the above RHUB determines the second PICO corresponding to the above first SSB beam from multiple above first PICO based on the above first mapping relationship, and sends the above first SSB beam through the above second PICO.

[0294] In some feasible embodiments, the above first mapping relationship includes:

[0295] If the number of SSB beams configured by the above BBU is greater than or equal to the number of PICO to be configured, then each of the above PICO to be configured corresponds to at least one of the SSB beams configured by the above BBU; or,

[0296] If the number of SSB beams configured by the above BBU is less than the number of PICO to be configured, then each of the SSB beams configured by the above BBU corresponds to at least one of the above PICO to be configured.

[0297] In some feasible embodiments, the above second determination unit 51 is further configured to:

[0298] Obtain the physical random access channel (PRACH) information sent by each user equipment (UE). Each of the above PRACH information corresponds to one of the above UEs, and each of the above PRACH information is received by the above RHUB through each of the above first PICO, merged, and then sent to the above BBU;

[0299] Determine the UE corresponding to each of the above first PICO based on each of the above PRACH information.

[0300] In some feasible embodiments, the above second determination unit 51 is used for:

[0301] Determine the PRACH resources corresponding to each of the above PRACH information;

[0302] For each of the above first PICO, based on the second mapping relationship between the PRACH resources and the SSB beam, and the above first mapping relationship, determine the target PRACH information received by the above first PICO, and determine the UE corresponding to the above target PRACH information as the UE corresponding to the above first PICO.

[0303] In some feasible embodiments, the above second determination unit 51 is further used for:

[0304] Obtain the SSB measurement information sent by each UE, and determine the SSB beam corresponding to each of the above SSB measurement information;

[0305] Based on the above first mapping relationship, determine the first PICO corresponding to each of the above SSB measurement information;

[0306] Based on the first PICO corresponding to each of the above SSB measurement information, determine the UE corresponding to each of the above first PICO.

[0307] In some feasible embodiments, the above second determination unit 51 is further used for:

[0308] Determine the resource configuration table corresponding to each of the above first PICO. The resource configuration table corresponding to each of the above first PICO is used to indicate the UE corresponding to the above first PICO;

[0309] The above second sending unit 52 is further used for:

[0310] Send each of the above resource configuration tables to the above RHUB, so that the above RHUB merges the uplink signals sent by the same UE based on each of the above resource configuration tables and then sends them to the above BBU.

[0311] In some feasible embodiments, the resource configuration table corresponding to each of the above first PICO is further used to indicate the configured resources occupied by the uplink signal sent by the UE corresponding to the above first PICO.

[0312] In some feasible embodiments, the second sending unit 52 is configured to:

[0313] Update the resource configuration table corresponding to each of the first PICOs in each time unit, and send each updated resource configuration table to the RHUB.

[0314] It should be noted that the division of modules (units) in the embodiments of the present application is illustrative, and is only a logical function division. In actual implementation, there may be other division methods. In addition, in each embodiment of the present application, each functional module may be integrated in a processing module, may exist separately physically for each module, or two or more modules may be integrated in one module. The above integrated module may be implemented in the form of hardware or in the form of a software functional module.

[0315] If the above integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or all or part of the above technical solution, may be embodied in the form of a software product. The above computer software product is stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of each embodiment of the present application. The foregoing storage medium includes: various media such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disc that can store program codes.

[0316] It should be noted here that the above device provided in the embodiments of the present application can implement all the method steps implemented in the above method embodiments, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments in this embodiment will not be specifically described herein.

[0317] As Figure 6 shown, an embodiment of the present application further provides an electronic device, including a memory 602, a transceiver 604, and a processor 601;

[0318] The memory 602 is used to store a computer program;

[0319] The transceiver 604 is used to receive and send data under the control of the processor 601;

[0320] Among them, the above electronic device may be used as a radio frequency remote hub RHUB or a baseband processing unit BBU;

[0321] When the above electronic device is used as a RHUB, the processor 601 is configured to read the computer program in the above memory 602 and perform the following operations:

[0322] Receive the first Synchronization Signal Block (SSB) beam sent by the Baseband Processing Unit (BBU);

[0323] Based on the first mapping relationship between the SSB beam and the pico base station (PICO), determine the second PICO corresponding to the first SSB beam from multiple first PICOs corresponding to the above RHUB, where the first mapping relationship is configured by the above BBU;

[0324] Transmit the first SSB beam through the above second PICO.

[0325] In some possible embodiments, when transmitting the first SSB beam through the above second PICO, the processor 601 is configured to:

[0326] If the first SSB beam is a frequency-domain signal, convert the first SSB beam into a time-domain signal through the above second PICO and then transmit it; or,

[0327] If the first SSB beam is a time-domain signal, directly transmit the first SSB beam through the above second PICO.

[0328] In some possible embodiments, when the first SSB beam is a time-domain signal, the processor 601 is further configured to:

[0329] Determine the time slot where the first SSB is located;

[0330] Convert other frequency-domain signals corresponding to the second PICO in the time slot into time-domain signals through the above second PICO and then transmit them.

[0331] In some possible embodiments, the first mapping relationship includes:

[0332] If the number of SSB beams configured by the above BBU is greater than or equal to the number of PICOs to be configured, each of the above PICOs to be configured corresponds to at least one SSB beam configured by the above BBU; or,

[0333] If the number of SSB beams configured by the above BBU is less than the number of PICOs to be configured, each SSB beam configured by the above BBU corresponds to at least one of the above PICOs to be configured.

[0334] In some possible embodiments, the processor 601 is further configured to:

[0335] Obtain the physical random access channel (PRACH) information received by each of the above-mentioned first Picos, where each of the above-mentioned PRACH information corresponds to a user equipment (UE).

[0336] Merge each of the above-mentioned PRACH information and send it to the above-mentioned BBU, so that the above-mentioned BBU determines the UE corresponding to each of the above-mentioned first Picos based on each of the above-mentioned PRACH information.

[0337] In some feasible embodiments, the above-mentioned processor 601 is further configured to:

[0338] Obtain the resource configuration table corresponding to each of the above-mentioned first Picos, where the resource configuration table corresponding to each of the above-mentioned first Picos is used to indicate the UE corresponding to the above-mentioned first Pico, and each of the above-mentioned resource configuration tables is configured by the above-mentioned BBU.

[0339] For each of the above-mentioned UEs, based on each of the above-mentioned resource configuration tables, determine at least one target first Pico corresponding to each of the above-mentioned UEs, and merge the uplink signals received through each of the above-mentioned target first Picos and send them to the above-mentioned BBU.

[0340] In some feasible embodiments, the resource configuration table corresponding to each of the above-mentioned first Picos is further used to indicate the configured resources occupied by the uplink signals sent by the UE corresponding to the above-mentioned first Pico; for each of the above-mentioned UEs, when merging the uplink signals sent by the above-mentioned UE received through each of the above-mentioned target first Picos and sending them to the above-mentioned BBU, the above-mentioned processor 601 is used to:

[0341] Determine the target configured resources corresponding to the above-mentioned UE in the resource configuration table corresponding to each of the above-mentioned target first Picos;

[0342] Merge the uplink signals on the corresponding target configured resources received through each of the above-mentioned target first Picos and send them to the above-mentioned BBU.

[0343] In some feasible embodiments, when obtaining the resource configuration table corresponding to each of the above-mentioned first Picos, the above-mentioned processor 601 is used to:

[0344] In each time unit, obtain the resource configuration table corresponding to each of the above-mentioned first Picos from the above-mentioned BBU.

[0345] In some feasible embodiments, when determining the second Pico corresponding to the above-mentioned first SSB beam from the multiple first Picos corresponding to the above-mentioned RHUB based on the first mapping relationship between the SSB beam and the pico base station (PICO), the above-mentioned processor 601 is used to:

[0346] Obtain the resource configuration tables corresponding to each first PICO corresponding to the above RHUB. The resource configuration table corresponding to each of the above first PICO is used to indicate the UE corresponding to the above first PICO, and each of the above resource configuration tables is configured by the above BBU;

[0347] Determine the target UE corresponding to the above first SSB beam, and based on the first mapping relationship between the SSB beam and the pico base station PICO, determine the first PICO corresponding to the above target UE as the second PICO corresponding to the above first SSB beam.

[0348] When the above electronic device acts as a BBU, the processor 601 is used to read the computer program in the above memory 602 and perform the following operations:

[0349] Determine the first mapping relationship between the synchronization signal block SSB beam and the pico base station PICO;

[0350] Send the above first mapping relationship to the radio frequency remote hub RHUB, and the above RHUB corresponds to multiple first PICO;

[0351] Send the first SSB beam to the above RHUB, so that the above RHUB determines the second PICO corresponding to the above first SSB beam from multiple above first PICO based on the above first mapping relationship, and sends the above first SSB beam through the above second PICO.

[0352] In some feasible embodiments, the above first mapping relationship includes:

[0353] If the number of SSB beams configured by the above BBU is greater than or equal to the number of PICO to be configured, then each of the above PICO to be configured corresponds to at least one of the SSB beams configured by the above BBU; or,

[0354] If the number of SSB beams configured by the above BBU is less than the number of PICO to be configured, then each of the SSB beams configured by the above BBU corresponds to at least one of the above PICO to be configured.

[0355] In some feasible embodiments, the above processor 601 is further used to:

[0356] Obtain the physical random access channel PRACH information sent by each user equipment UE. Each of the above PRACH information corresponds to one of the above UE, and each of the above PRACH information is received and merged by the above RHUB through each of the above first PICO and then sent to the above BBU;

[0357] Determine the UE corresponding to each of the above first PICO based on each of the above PRACH information.

[0358] In some feasible embodiments, when determining the UE corresponding to each of the above-mentioned first PICOs based on each of the above-mentioned PRACH messages, the processor 601 is configured to:

[0359] Determine the PRACH resources corresponding to each of the above-mentioned PRACH messages;

[0360] For each of the above-mentioned first PICOs, based on the second mapping relationship between the PRACH resources and the SSB beams, and the above-mentioned first mapping relationship, determine the target PRACH message received by the above-mentioned first PICO, and determine the UE corresponding to the above-mentioned target PRACH message as the UE corresponding to the above-mentioned first PICO.

[0361] In some feasible embodiments, the processor 601 is further configured to:

[0362] Obtain the SSB measurement information sent by each UE, and determine the SSB beams corresponding to each of the above-mentioned SSB measurement information;

[0363] Based on the above-mentioned first mapping relationship, determine the first PICO corresponding to each of the above-mentioned SSB measurement information;

[0364] Based on the first PICO corresponding to each of the above-mentioned SSB measurement information, determine the UE corresponding to each of the above-mentioned first PICOs.

[0365] In some feasible embodiments, after determining the UE corresponding to each of the above-mentioned first PICOs, the processor 601 is further configured to:

[0366] Determine the resource configuration table corresponding to each of the above-mentioned first PICOs, and the resource configuration table corresponding to each of the above-mentioned first PICOs is used to indicate the UE corresponding to the above-mentioned first PICO;

[0367] Send each of the above-mentioned resource configuration tables to the above-mentioned RHUB, so that the above-mentioned RHUB combines the uplink signals sent by the same UE based on each of the above-mentioned resource configuration tables and sends them to the above-mentioned BBU.

[0368] In some feasible embodiments, the resource configuration table corresponding to each of the above-mentioned first PICOs is further used to indicate the configured resources occupied by the uplink signals sent by the UE corresponding to the above-mentioned first PICO.

[0369] In some feasible embodiments, when sending each of the above-mentioned resource configuration tables to the above-mentioned RHUB, the processor 601 is configured to:

[0370] Update the resource configuration table corresponding to each of the above-mentioned first PICOs in each time unit, and send each updated resource configuration table to the above-mentioned RHUB.

[0371] Wherein, in Figure 6Among them, the bus architecture may include any number of interconnected buses and bridges, specifically, various circuits of one or more processors 601 represented by the processor 601 and the memory 602 represented by the memory 602 are linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, and thus will not be further described herein. The bus interface 603 provides an interface. The transceiver 604 may be multiple components, that is, including a transmitter and a receiver, and provides a unit for communicating with various other devices on a transmission medium, and these transmission mediums include wireless channels, wired channels, optical fiber cables, and other transmission mediums. The processor 601 is responsible for managing the bus architecture and general processing, and the memory 602 may store data used by the processor 601 when executing operations. When the above electronic device is used as a terminal, for different user devices, the user interface 605 may also be an interface capable of externally connecting or internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

[0372] The processor 601 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD), and the processor 601 may also adopt a multi-core architecture.

[0373] The processor 601 is used to execute any signal processing method provided by the embodiments of the present application according to the obtained executable instructions by calling the computer program stored in the memory 602. The processor 601 and the memory 602 may also be physically separated.

[0374] The embodiments of the present application further provide a computer-readable storage medium, and the above computer-readable storage medium stores a computer program, and the above computer program is used to cause the above processor to execute any signal processing method provided by the embodiments of the present application.

[0375] The above computer-readable storage medium may be any available medium or data storage device accessible by the processor, including but not limited to magnetic memories (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical memories (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor memories (such as ROMs, EPROMs, EEPROMs, non-volatile memories (NAND FLASH), solid state drives (SSDs), etc.

[0376] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0377] The present application is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to the embodiments of the present application. It should be understood that each flow and / or block in the flowchart and / or block diagram, as well as the combination of flows and / or blocks in the flowchart and / or block diagram, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate means for implementing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0378] These processor-executable instructions can also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the processor-readable memory generate a manufactured article including instruction means that implement the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0379] These processor-executable instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0380] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims

1. A signal processing method, characterized in that, applied to a Remote Radio Unit - Hub (RHUB), the method includes: Obtain the Physical Random Access Channel (PRACH) information received by each of a plurality of first pico base stations (PICO), and each of the PRACH information corresponds to a User Equipment (UE); Merge each of the PRACH information and send it to a Baseband Processing Unit (BBU), and each of the PRACH information is used to determine the UE corresponding to each of the first PICO; Receive a first Synchronization Signal Block (SSB) beam sent by the BBU; Based on a first mapping relationship between the SSB beam and the PICO, determine a second PICO corresponding to the first SSB beam from a plurality of first PICO corresponding to the RHUB, and the first mapping relationship is configured by the BBU; Send the first SSB beam through the second PICO.

2. The method according to claim 1, characterized in that, The step of sending the first SSB beam through the second PICO includes: If the first SSB beam is a frequency - domain signal, convert the first SSB beam into a time - domain signal through the second PICO and then send it; or, If the first SSB beam is a time - domain signal, directly send the first SSB beam through the second PICO.

3. The method according to claim 2, characterized in that, When the first SSB beam is a time - domain signal, the method further includes: Determine the time slot where the first SSB is located; Convert other frequency - domain signals corresponding to the second PICO within the time slot into time - domain signals through the second PICO and then send them.

4. The method according to claim 1, characterized in that, The first mapping relationship includes: If the number of SSB beams configured by the BBU is greater than or equal to the number of PICO to be configured, each of the PICO to be configured corresponds to at least one of the SSB beams configured by the BBU; or, If the number of SSB beams configured by the BBU is less than the number of PICO to be configured, each of the SSB beams configured by the BBU corresponds to at least one of the PICO to be configured.

5. The method according to claim 1, characterized in that, The method further includes: Obtain a resource configuration table corresponding to each of the first PICO, and the resource configuration table corresponding to each of the first PICO is used to indicate the UE corresponding to the first PICO, and each of the resource configuration tables is configured by the BBU; For each of the UEs, based on each of the resource configuration tables, determine at least one target first PICO corresponding to each of the UEs, and merge the uplink signals received through each of the target first PICO and send them to the BBU.

6. The method according to claim 5, characterized in that, The resource configuration table corresponding to each of the first PICO is further used to indicate the configured resources occupied by the uplink signal sent by the UE corresponding to the first PICO. For each of the UEs, the uplink signals sent by the UE received by each of the target first Picos are merged and then sent to the BBU, including: Determine the target configured resources corresponding to the UE in the resource configuration table corresponding to each of the target first Picos; Merge the uplink signals received by each of the target first Picos on the corresponding target configured resources and send them to the BBU.

7. The method according to claim 5, wherein, The obtaining the resource configuration table corresponding to each of the first Picos includes: In each time unit, obtain the resource configuration table corresponding to each of the first Picos from the BBU.

8. The method according to claim 1, wherein, The determining the second Pico corresponding to the first SSB beam from the multiple first Picos corresponding to the RHUB based on the first mapping relationship between the SSB beam and the pico base station Pico includes: Obtain the resource configuration tables corresponding to the respective first Picos corresponding to the RHUB, where the resource configuration table corresponding to each first Pico is used to indicate the UE corresponding to the first Pico, and each resource configuration table is configured by the BBU; Determine the target UE corresponding to the first SSB beam, and based on the first mapping relationship between the SSB beam and the pico base station Pico, determine the first Pico corresponding to the target UE as the second Pico corresponding to the first SSB beam.

9. A signal processing method, wherein, Applied to a baseband processing unit BBU, the method includes: Obtain physical random access channel PRACH information sent by a user equipment UE, where each PRACH information corresponds to one UE, and each PRACH information is received by a radio frequency remote hub RHUB through each first pico base station Pico corresponding to the RHUB, merged, and then sent to the BBU; Determine the UE corresponding to each of the first Picos based on each of the obtained PRACH information; Determine the first mapping relationship between the synchronization signal block SSB beam and the Pico; Send the first mapping relationship to the RHUB; Send a first SSB beam to the RHUB, so that the RHUB determines the second Pico corresponding to the first SSB beam from multiple first Picos based on the first mapping relationship, and sends the first SSB beam through the second Pico.

10. The method according to claim 9, wherein, The first mapping relationship includes: If the number of SSB beams configured by the BBU is greater than or equal to the number of Picos to be configured, then each of the Picos to be configured corresponds to at least one SSB beam configured by the BBU; or, If the number of SSB beams configured by the BBU is less than the number of Picos to be configured, then each SSB beam configured by the BBU corresponds to at least one of the Picos to be configured.

11. The method according to claim 9, wherein, Determining the UE corresponding to each of the first PICOs based on each of the obtained PRACH messages includes: Determining the PRACH resources corresponding to each of the obtained PRACH messages; For each of the first PICOs, based on the second mapping relationship between the PRACH resources and the SSB beams and the first mapping relationship, determining the target PRACH message received by the first PICO, and determining the UE corresponding to the target PRACH message as the UE corresponding to the first PICO.

12. The method according to claim 9, wherein, the method further includes: Obtaining the SSB measurement information sent by each UE, and determining the SSB beam corresponding to each of the SSB measurement information; Based on the first mapping relationship, determining the first PICO corresponding to each of the SSB measurement information; Based on the first PICO corresponding to each of the SSB measurement information, determining the UE corresponding to each of the first PICOs.

13. The method according to claim 9 or 11, wherein, after determining the UE corresponding to each of the first PICOs, the method further includes: Determining the resource configuration table corresponding to each of the first PICOs, and the resource configuration table corresponding to each of the first PICOs is used to indicate the UE corresponding to the first PICO; Sending each of the resource configuration tables to the RHUB, so that the RHUB merges the uplink signals sent by the same UE based on each of the resource configuration tables and sends them to the BBU.

14. The method according to claim 13, wherein, The resource configuration table corresponding to each of the first PICOs is further used to indicate the configured resources occupied by the uplink signals sent by the UE corresponding to the first PICO.

15. The method according to claim 13, wherein, The sending each of the resource configuration tables to the RHUB includes: Updating the resource configuration table corresponding to each of the first PICOs in each time unit, and sending each updated resource configuration table to the RHUB.

16. A signal processing device, wherein, the device includes: A receiving unit, configured to obtain the physical random access channel PRACH information received by each of the first pico base stations (PICOs) among a plurality of first PICOs, and each of the PRACH information corresponds to a user equipment (UE); A first sending unit, configured to merge and send each of the PRACH information to a baseband processing unit (BBU), and each of the PRACH information is used to determine the UE corresponding to each of the first PICOs; The receiving unit, configured to receive the first synchronization signal block (SSB) beam sent by the BBU; A first determining unit, configured to determine the second PICO corresponding to the first SSB beam from among a plurality of first PICOs corresponding to a radio frequency remote hub (RHUB) based on the first mapping relationship between the SSB beam and the PICO, and the first mapping relationship is configured by the BBU; The first sending unit, configured to send the first SSB beam through the second PICO.

17. A signal processing device, It is characterized in that the device includes: a second determination unit, configured to obtain physical random access channel (PRACH) information sent by a user equipment (UE), each piece of the PRACH information corresponding to one UE, and each piece of the PRACH information being received and combined by each first pico base station (PICO) corresponding to a radio remote head (RHUB) and then sent to a baseband processing unit (BBU); the second determination unit, configured to determine the UE corresponding to each first PICO based on each piece of the obtained PRACH information; the second determination unit, configured to determine a first mapping relationship between a synchronization signal block (SSB) beam and a PICO; a second sending unit, configured to send the first mapping relationship to the RHUB; the second sending unit, configured to send a first SSB beam to the RHUB, so that the RHUB determines a second PICO corresponding to the first SSB beam from multiple first PICOs based on the first mapping relationship, and sends the first SSB beam through the second PICO.

18. A radio remote head (RHUB), it is characterized in that it includes a memory, a transceiver, and a processor: the memory is configured to store a computer program; the transceiver is configured to send and receive data under the control of the processor; the processor is configured to read the computer program in the memory and perform the following operations: obtain PRACH information received by each first PICO among multiple first PICOs, each piece of the PRACH information corresponding to one user equipment (UE); combine each piece of the PRACH information and send it to the baseband processing unit (BBU), and each piece of the PRACH information is used to determine the UE corresponding to each first PICO; receive a first synchronization signal block (SSB) beam sent by the BBU; determine a second PICO corresponding to the first SSB beam from multiple first PICOs corresponding to the radio remote head (RHUB) based on a first mapping relationship between the SSB beam and the PICO, where the first mapping relationship is configured by the BBU; send the first SSB beam through the second PICO.

19. A baseband processing unit (BBU), it is characterized in that it includes a memory, a transceiver, and a processor: the memory is configured to store a computer program; the transceiver is configured to send and receive data under the control of the processor; the processor is configured to read the computer program in the memory and perform the following operations: obtain PRACH information sent by a user equipment (UE), each piece of the PRACH information corresponding to one UE, and each piece of the PRACH information being received and combined by each first pico base station (PICO) corresponding to a radio remote head (RHUB) and then sent to the BBU; determine the UE corresponding to each first PICO based on each piece of the obtained PRACH information; determine a first mapping relationship between a synchronization signal block (SSB) beam and a PICO; send the first mapping relationship to the RHUB; Send a first SSB beam to the RHUB, so that the RHUB determines a second PICO corresponding to the first SSB beam from multiple first PICOs based on the first mapping relationship, and sends the first SSB beam through the second PICO.

20. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program, and the computer program is used to cause the computer to execute the method according to any one of claims 1 to 15.

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