CN116208972A

CN116208972A - Signal processing method, device, equipment and storage medium

Info

Publication number: CN116208972A
Application number: CN202210068157.2A
Authority: CN
Inventors: 郭保娟
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2021-12-01
Filing date: 2022-01-20
Publication date: 2023-06-02

Abstract

The embodiment of the application relates to the technical field of mobile communication and discloses a signal processing method, a device, equipment and a storage medium. The method is applied to a remote radio hub RHIB, and comprises the following steps: receiving a first synchronous signal block SSB wave beam sent by a baseband processing unit BBU; determining a second PICO corresponding to the first SSB beam from a plurality of PICO corresponding to RHIB based on a first mapping relation between the SSB beam and the PICO of the PICO base station, wherein the first mapping relation is configured by the BBU; the first SSB beam is transmitted through the upper second PICO. By adopting the embodiment of the application, the sending efficiency of the SSB wave beam can be improved, the sending power can be reduced, and the applicability is high.

Description

Signal processing method, device, equipment and storage medium

Technical Field

The present disclosure relates to the field of mobile communications technologies, and in particular, to a signal processing method, apparatus, device, and storage medium.

Background

In the mobile communication system, in an indoor distribution system or a high-speed scene, the coverage radius of each remote radio unit (Radio Remote Unit, RRU) is smaller, the cell reselection switching frequently occurs due to the movement of a terminal, the communication quality is seriously affected, and the method is to enlarge the coverage area of the cell. And the cell merging utilizes the optical fiber to merge the baseband signals of RRUs installed at different base station sites into one cell by a baseband processing unit (Building Base band Unit, BBU), thereby expanding the coverage area of the cell.

In the above scenario, the downlink signal is mainly sent based on the PICO-base station PICO of multiple points corresponding to the remote radio hubs (RRU Hub, RHUB), for example, the synchronization signal block (Synchro Signal Block, SSB) beam is sent based on the PICO of multiple points, but when the SSB beam is sent based on the PICO of multiple points, since the user cannot receive the downlink signal at each PICO point, the power waste is brought by sending the downlink signal at the same time by the PICO of all points.

Disclosure of Invention

The embodiment of the application provides a signal processing method, a device, equipment and a storage medium, which can improve the sending efficiency of SSB wave beams, reduce the sending power and have high applicability.

In one aspect, an embodiment of the present application provides a signal processing method, which is applied to a remote radio hub RHUB, where the method includes:

receiving a first synchronous signal block SSB wave beam sent by a baseband processing unit BBU;

determining a second PICO corresponding to the first SSB beam from a plurality of first PICO corresponding to the RHIB based on a first mapping relation between the SSB beam and the PICO of the PICO base station, wherein the first mapping relation is configured by the BBU;

and transmitting the first SSB wave beam through the second PICO.

On the other hand, the embodiment of the application provides a signal processing method, which is applied to a baseband processing unit BBU, and the method includes:

determining a first mapping relation between SSB beams and PICO;

transmitting the first mapping relation to a remote radio hub RHIB, wherein the RHIB corresponds to a plurality of first PICO;

and transmitting a first SSB beam to the RHUB, so that the RHUB determines a second PICO corresponding to the first SSB beam from the plurality of first PICOs based on the first mapping relationship, and transmits the first SSB beam through the second PICO.

In another aspect, an embodiment of the present application provides a signal processing apparatus, where the apparatus includes:

a receiving unit, configured to receive a first synchronization signal block SSB beam sent by the baseband processing unit BBU;

a first determining unit, configured to determine, from a plurality of first PICOs corresponding to a remote radio hub RHUB, a second PICO corresponding to the first SSB beam based on a first mapping relationship between the SSB beam and the PICO, where the first mapping relationship is configured by the BBU;

and the first sending unit is used for sending the first SSB wave beam through the second PICO.

Optionally, the first sending unit is configured to:

If the first SSB wave beam is a frequency domain signal, the first SSB wave beam is converted into a time domain signal through the second PICO and then transmitted; or,

and if the first SSB beam is a time domain signal, the first SSB beam is directly transmitted through the second PICO.

Optionally, the first SSB beam is a time domain signal, and the first transmitting unit is further configured to:

determining a time slot in which the first SSB is located;

and converting other frequency domain signals corresponding to the second PICO in the time slot into time domain signals through the second PICO and then transmitting the time domain signals.

Optionally, 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, each PICO 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 smaller than the number of PICOs to be configured, each SSB beam configured by the BBU corresponds to at least one PICO to be configured.

Optionally, the receiving unit is further configured to:

acquiring PRACH information of a physical random access channel received by each first PICO, wherein each PRACH information corresponds to one User Equipment (UE);

The first sending unit is further configured to:

and combining each PRACH information and then sending the combined PRACH information to the BBU, so that the BBU determines the UE corresponding to each first PICO based on each PRACH information.

Optionally, the receiving unit is further configured to:

acquiring a resource allocation table corresponding to each first PICO, wherein the resource allocation table corresponding to each first PICO is used for indicating UE corresponding to the first PICO, and each resource allocation table is configured by the BBU;

the first sending unit is further configured to:

and for each UE, determining at least one target first PICO corresponding to each UE based on each resource allocation table, combining uplink signals received through each target first PICO, and sending the uplink signals to the BBU.

Optionally, each resource allocation table corresponding to the first PICO is further configured to indicate a configuration resource occupied by an uplink signal sent by the UE corresponding to the first PICO; for each UE, the first sending unit is configured to:

determining a target configuration resource corresponding to the UE in a resource configuration table corresponding to each target first PICO;

and merging the uplink signals received by each target first PICO and corresponding to the target configuration resources, and then sending the uplink signals to the BBU.

Optionally, the receiving unit is configured to:

and acquiring a resource allocation table corresponding to each first PICO from the BBU in each time unit.

Optionally, the first determining unit is configured to:

acquiring resource allocation tables corresponding to first PICO corresponding to the RHIB, wherein each resource allocation table corresponding to the first PICO is used for indicating UE corresponding to the first PICO, and each resource allocation table is configured by the BBU;

and determining a target UE corresponding to the first SSB beam, and determining the first PICO corresponding to the target UE as a second PICO corresponding to the first SSB beam based on a first mapping relation between the SSB beam and the PICO.

a second determining unit, configured to determine a first mapping relationship between the SSB beam and the PICO of the PICO base station;

a second transmitting unit, configured to transmit the first mapping relationship to a remote radio hub RHUB, where the RHUB corresponds to a plurality of first PICOs;

the second transmitting unit is configured to transmit a first SSB beam to the RHUB, so that the RHUB determines, from the plurality of first PICOs, a second PICO corresponding to the first SSB beam based on the first mapping relationship, and transmits the first SSB beam through the second PICO.

Optionally, the first mapping relationship includes:

Optionally, the second determining unit is further configured to:

acquiring PRACH information of a physical random access channel sent by each User Equipment (UE), wherein each PRACH information corresponds to one UE, and each PRACH information is received by the RHIB through each first PICO and is combined and then sent to the BBU;

and determining the UE corresponding to each first PICO based on each PRACH information.

Optionally, the second determining unit is configured to:

determining PRACH resources corresponding to each PRACH information;

for each first PICO, determining target PRACH information received by the first PICO based on a second mapping relation between PRACH resources and SSB beams and the first mapping relation, and determining the UE corresponding to the target PRACH information as the UE corresponding to the first PICO.

Optionally, the second determining unit is further configured to:

acquiring SSB measurement information sent by each UE, and determining SSB beams corresponding to the SSB measurement information;

determining a first PICO corresponding to each SSB measurement information based on the first mapping relation;

and determining the UE corresponding to each first PICO based on the first PICO corresponding to each SSB measurement information.

Optionally, the second determining unit is further configured to:

determining a resource allocation table corresponding to each first PICO, wherein the resource allocation table corresponding to each first PICO is used for indicating UE corresponding to the first PICO;

the second sending unit is further configured to:

and sending each resource configuration table to the RHIB, so that the RHIB combines uplink signals sent by the same UE based on each resource configuration table and then sends the uplink signals to the BBU.

Optionally, each resource allocation table corresponding to the first PICO is further configured to indicate a configuration resource occupied by an uplink signal sent by the UE corresponding to the first PICO.

Optionally, the second sending unit is configured to:

and updating the resource configuration table corresponding to each first PICO in each time unit, and sending each updated resource configuration table to the RHIB.

In another aspect, an embodiment of the present application provides a remote radio hub RHUB, including a memory, a transceiver, and a processor:

a memory for storing a computer program; a transceiver for receiving and transmitting data under the control of the processor; a processor for reading the computer program in the memory and performing the following operations:

and transmitting the first SSB wave beam through the second PICO.

Optionally, when the first SSB beam is transmitted through the second PICO, the processor is configured to:

Optionally, when the first SSB beam is a time domain signal, the processor is further configured to:

Determining a time slot in which the first SSB is located;

Optionally, the first mapping relationship includes:

Optionally, the above processor is further configured to:

Optionally, each resource allocation table corresponding to the first PICO is further configured to indicate a configuration resource occupied by an uplink signal sent by the UE corresponding to the first PICO; for each UE, when the uplink signals sent by the UE and received through each target first PICO are combined and then sent to the BBU, the processor is configured to:

Optionally, when acquiring the resource allocation table corresponding to each of the first PICOs, the processor is configured to:

Optionally, when determining the second PICO corresponding to the first SSB beam from the first PICOs corresponding to the RHUB based on the first mapping relationship between the SSB beam and the PICO base station PICO, the processor is configured to:

On the other hand, the embodiment of the application provides a baseband processing unit BBU, which comprises a memory, a transceiver and a processor:

determining a first mapping relation between SSB beams and PICO;

Optionally, the first mapping relationship includes:

Optionally, the above processor is further configured to:

Optionally, when determining, based on each PRACH message, a UE corresponding to each of the first PICOs, the processor is configured to:

determining PRACH resources corresponding to each PRACH information;

Optionally, the above processor is further configured to:

Optionally, after determining each UE corresponding to the first PICO, the processor is further configured to:

Optionally, in sending each of the resource configuration tables to the RHUB, the processor is configured to:

On the other hand, the embodiment of the present application further provides a computer readable storage medium, where a computer program is stored on the computer readable storage medium, where the computer program is executed by a processor to implement any one of the signal processing methods provided in the embodiments of the present application.

Based on the signal processing method provided by the embodiment of the application, when RHIB receives the SSB beam sent by BBU, the SSB beam is sent through the PICO corresponding to the SSB beam, so that the sending efficiency of the SSB beam is improved, the sending power is reduced, and the applicability is high.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments of the present application will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic flow chart of a signal processing method according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of the relationship between BBU and RHIB provided in an embodiment of the present application;

fig. 3 is another flow chart of a signal processing method according to an embodiment of the present application;

Fig. 4 is a schematic structural diagram of a signal processing device according to an embodiment of the present disclosure;

fig. 5 is another schematic structural diagram of a signal processing device according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

In the embodiment of the application, the term "and/or" describes the association relationship of the association objects, which means that three relationships may exist, for example, a and/or B may be represented: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The term "plurality" in the embodiments of the present application means two or more, and other adjectives are similar thereto.

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In addition, the technical scheme provided by the embodiment of the application can be suitable for various systems, especially 5G systems. For example, suitable systems may be global system for mobile communications (global system of mobile communication, GSM), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) universal packet Radio service (general packet Radio service, GPRS), long term evolution (long term evolution, LTE), LTE frequency division duplex (frequency division duplex, FDD), LTE time division duplex (time division duplex, TDD), long term evolution-advanced (long term evolution advanced, LTE-a), universal mobile system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX), 5G New air interface (New Radio, NR), and the like. Among these various systems are User Equipment (UE), RHUB, and BBU. Core network parts such as evolved packet system (Evolved Packet System, EPS), 5G system (5 GS) etc. may also be included in the system.

The UE according to the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem, etc. In different systems, the names of the user equipments may also be different, e.g. the user equipments may be called radio terminals, which may communicate with one or more Core Networks (CN) via radio access networks (Radio Access Network, RAN), the radio terminals may be mobile terminals, e.g. mobile phones (or "cellular" phones) and computers with mobile terminals, e.g. the user equipments may also be portable, pocket, hand-held, computer-built-in or car-mounted mobile devices, which exchange speech and/or data with the radio access networks. Such as personal communication services (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiated Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal Digital Assistant, PDAs), and the like. A wireless terminal may also be referred to as a system, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile), remote station (remote station), access point (access point), remote terminal (remote terminal), access terminal (access terminal), user agent (user agent), user device (user device), and the embodiments of the present application are not limited.

The RHUB and BBU referred to in embodiments of the present application may be located in network devices of various communication systems. Wherein the network device may be a base station, which may comprise a plurality of cells serving the terminal. A base station may also be called an access point, or may be a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminals, or other names, depending on the particular application. The network device may be configured to exchange received air frames with internet protocol (Internet Protocol, IP) packets as a router between the wireless terminal and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in a global system for mobile communications (Global System for Mobile communications, GSM) or code division multiple access (Code Division Multiple Access, CDMA), a network device (NodeB) in a wideband code division multiple access (Wide-band Code Division Multiple Access, WCDMA), an evolved network device (evolutional Node B, eNB or e-NodeB) in a long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), a home evolved base station (Home evolved Node B, heNB), a relay node (relay node), a home base station (femto), a pico base station (pico), and the like. In some network structures, the network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.

Multiple-input Multiple-output (Multi Input Multi Output, MIMO) transmissions may each be made between a network device and a User device using one or more antennas, and the MIMO transmissions may be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of the root antenna combinations.

Referring to fig. 1, fig. 1 is a flow chart of a signal processing method according to an embodiment of the present application. The signal processing method provided by the embodiment of the application can be applied to a remote radio hub RHIB, and specifically comprises the following steps:

step S11, receiving a first synchronization signal block SSB beam sent by the baseband processing unit BBU.

In some possible embodiments, the first SSB beam is a downlink signal that the BBU needs to send to the UE through the PICO corresponding to RHUB, and may be any SSB beam configured by the BBU.

Wherein, the BBU may correspond to a plurality of RHIBs, each RHIB corresponds to a plurality of PICAs, and the first SSB beam sent by the BBU may be sent through any PICO corresponding to any RHIB.

Step S12, determining a second PICO corresponding to the first SSB wave beam from a plurality of first PICO corresponding to RHIB based on a first mapping relation between the SSB wave beam and the PICO of the PICO base station.

Wherein, RHUB corresponds to at least one PICO, and for convenience of description, each PICO corresponding to RHUB is hereinafter referred to as a first PICO.

In some possible embodiments, the first mapping relationship between SSB beams and PICOs is used to indicate a correspondence between each SSB beam of the BBU configuration and the first PICO used to transmit each SSB beam, i.e., the first PICO used to indicate each SSB beam of the BBU configuration.

After receiving the first SSB beam sent by the BBU, RHUB may determine, from a plurality of first PICOs corresponding to RHUB, a second PICO for sending the first SSB beam based on a first mapping relationship between the SSB beam and the PICOs.

Wherein, the first mapping relation between the SSB wave beam and the PICO is configured by the BBU and sent to the RHIB.

Alternatively, in the case that the BBU corresponds to a plurality of RHUBs, each RHUB may correspond to an independent first mapping relationship, and the first mapping relationship corresponding to each RHUB may be used to indicate SSB beams sent through the plurality of first PICOs corresponding to the RHUB.

In some possible embodiments, the first mapping relationship between SSB beams and PICOs of the BBU configuration 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 PICO to be configured corresponds to at least one SSB beam configured by the BBU; or,

The PICO to be configured is part or all of the first PICO corresponding to each RHIB.

Specifically, in the case where 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 SBB beams configured by the BBU corresponding to any two PICOs to be configured may be the same or different, which is not limited herein.

For example, each preset number of BBU configured SSB beams may correspond to one PICO to be configured, and each PICO to be configured corresponds to a BBU configured SSB beam that is different from SSB beams of other PICO pairs to be configured.

As an example, assuming 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, the first mapping relationship between the SSB beams and the PICOs may be:

for another example, each preset number of SSB beams configured by the BBU may correspond to one PICO to be configured, each of the SSB beams corresponding to the PICO to be configured is different from SSB beams of other PICO pairs to be configured, and an index interval between SSB beams configured by the BBU corresponding to each of the PICOs to be configured is the same as an index interval between SSB beams configured by the BBU corresponding to other PICOs to be configured.

specifically, in the case that the number of SSB beams configured by the BBU is smaller than the number of PICOs to be configured, the SSB beams configured by each BBU correspond to at least one PICO to be configured, and the PICOs to be configured corresponding to the SSB beams configured by any two BBUs may be the same or different, which is not limited herein.

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 may be the same or different, and may specifically be determined based on the actual application scenario requirements, which is not limited herein.

As an example, assuming 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, the first mapping relationship between the SSB beams and the PICOs may be:

for another example, each preset number of PICOs to be configured may correspond to SSB beams configured by one BBU, the PICOs to be configured corresponding to the SSB beams configured by each BBU are different from the PICOs to be configured corresponding to other SSB beams, and the index interval of the PICOs to be configured corresponding to the SSB beams configured by each BBU is the same as the index interval of the PICOs to be configured corresponding to the SSB beams configured by other BBUs.

specifically, in the case where the number of SSB beams configured by the BBU is equal to the number of PICOs to be configured, each SSB beam corresponds to one PICO to be configured, and the PICOs to be configured corresponding to any two SSB beams are different, and any SSB beam may correspond to the PICOs to be configured of Ren Yidai.

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

It should be noted that, the manner of the first mapping relationship between the SSB beams and the PICOs is merely an example, so long as it is satisfied that each PICO to be configured corresponds to at least one SSB beam configured by the BBU if 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 corresponds to at least one PICO to be configured if the number of SSB beams configured by the BBU is less than the number of PICOs to be configured, which may be specifically determined based on the actual application scenario requirements, and is not limited herein.

It should be specifically noted that, a first mapping relationship may exist between all SSB beams configured by the BBU and 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 the RHUB may be as shown above, which is not described herein.

The first mapping relationship between the SSB beams and the PICOs may also be the first mapping relationship between a part of SSB beams in all SSB beams configured by the BBU and each first PICO, which is not described herein. In this case, if the RHUB does not determine the second PICO corresponding to the first SSB beam based on the first mapping relationship, any one or more first PICOs may be determined as the second PICO corresponding to the first SSB beam.

Step S13, the first SSB wave beam is sent through the second PICO.

In some possible embodiments, when the RHUB transmits the first SSB beam through the second PICO, the RHUB may be transmitted based on a time-frequency domain type of the first SSB beam.

Specifically, if the first SSB beam is a frequency domain signal, the first SSB beam may be converted into a time domain signal by the second PICO and then directly transmitted.

The other frequency domain signals outside the SSB beam can be converted into time domain signals through the corresponding first PICO and then transmitted.

Alternatively, if the first SSB beam is a time domain signal, the first SSB beam may be directly transmitted through the second PICO.

When the first SSB beam of the time domain signal is transmitted through the second PICO, a time slot in which the first SSB is located may be determined, and other frequency domain signals corresponding to the second PICO in the time slot are converted into time domain signals through the second PICO and then transmitted.

That is, for the second PICO, the second PICO can only transmit other time domain signals corresponding to the second PICO within the time slot in which the first SSB beam is located.

In some possible implementations, the signal processing method provided in the embodiment of the present application further includes:

acquiring physical random access channel (Physical Random Access Channel, PRACH) information received by each first PICO, wherein each PRACH information corresponds to one UE;

and combining each PRACH information and then sending the combined PRACH information to the BBU so that the BBU can determine the UE corresponding to each first PICO based on each PRACH information.

Any PRACH information is information which is sent by the UE and used for establishing communication connection with the network, namely PRACH information which is initiated by the UE to be randomly accessed, and any UE can send the PRACH information to the network through any first PICO.

Wherein, the UE corresponding to each first PICO is a UE corresponding to PRACH information received by the first PICO.

When the RHUB combines each PRACH information and sends the PRACH information to the BBU, the digital signals of the PRACH information received through the plurality of first PICOs corresponding to the RHUB may be combined and sent to the BBU.

If the BBU corresponds to a plurality of RHUB, the PRACH information sent by each UE and received by the BBU is a combined signal corresponding to the PRACH information received by each RHUB through the first PICO.

As shown in FIG. 2, the BBU corresponds to a plurality of RHIBs, each of which may also be referred to as a logical PICO. Each RHBU may combine the digital signals of the PRACH information received through each first PICO and then transmit the combined digital signals to the BBU, and there may be RHUB multi-stage concatenation.

Let RHUB be named P (N), where N is the index, n= … … N, N is the number of RHUB. Each RHUB corresponds to M first PICOs, each of which is designated as P (n, M), and M has a value range of 1 … … M.

For RHUB1, the first PICO with numbers P (1, m), P (2, m), P (3, m), and P (4, m) may obtain PRACH information received by RHUB1, and combine them and send them to the BBU.

acquiring a resource allocation table corresponding to each first PICO, wherein the resource allocation table corresponding to each first PICO is used for indicating UE corresponding to the first PICO, and the resource allocation table corresponding to each first PICO is configured by a BBU;

For each UE, determining at least one target first PICO corresponding to the UE based on each resource allocation table, and combining uplink signals sent by the UE and received through each target first PICO and then sending the uplink signals to the BBU.

That is, the RHUB may obtain, from the BBU, a resource configuration table corresponding to each first PICO, where any one resource configuration table is used to indicate UEs that send uplink signals through the first PICO corresponding to the resource configuration table, and may determine a correspondence between each first PICO and each UE based on the resource configuration table corresponding to each first PICO.

Further, for any UE, the RHUB may determine, based on each resource configuration table, a target first PICO that may be used to receive the uplink signal sent by the UE, and further combine the uplink signals received by each target first PICO and sent by the UE to the BBU.

For each UE, the uplink signal sent by the UE may be msg3 information and msg5 information sent by the UE in a random access process, or may be a physical uplink control channel (Physical Uplink Control Channel, PUCCH) signal or a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) signal sent by the UE in other communication processes, such as SSB measurement information, which is not limited herein.

In some possible embodiments, after receiving SSB measurement information sent by each UE, the RHUB may acquire a resource configuration table corresponding to each first PICO, where each resource configuration table is used to indicate the UE corresponding to the first PICO, and each resource configuration table corresponding to the first PICO is configured by the BBU.

Further, the RHUB may determine, according to the resource allocation table corresponding to each first PICO, UEs corresponding to each first PICO, determine a merging manner of each SSB measurement information based on the determining, and merge each SSB measurement information to send to the BBU.

The SSB measurement information may be a PUSCH signal.

As an example, the RHUB may determine, based on the resource configuration table corresponding to each first PICO, UEs corresponding to each first PICO, and may further combine PUSCH signals sent by the same UE and send the PUSCH signals to the BBU.

In some possible embodiments, the resource configuration table corresponding to each first PICO is further configured to indicate configuration resources occupied by an uplink signal sent by the UE corresponding to the first PICO. The configuration resource may be a physical resource block (Physical Resource Block, PRB) occupied by an uplink signal.

For any first PICO, the resource allocation table corresponding to the first PICO can be used for indicating a plurality of configuration resources, and the configuration resources indicate the configuration resources occupied by uplink signals sent by different UEs corresponding to the first PICO through different identifiers.

For example, for any first PICO, the allocation resource corresponding identifier in the resource allocation table corresponding to the first PICO is 1, and the allocation resource indicated as 1 is the allocation resource occupied by the uplink signal sent by the first UE corresponding to the indication 1.

Further, for each UE, after combining uplink signals sent by the UE and received through each target first PICO, the method includes:

determining target configuration resources corresponding to the UE in a resource configuration table corresponding to each target first PICO;

That is, for RHUB, after receiving the uplink signal of each UE through each first PICO, the configuration resource occupied by each uplink signal may be determined, and the uplink signals on the target configuration resource corresponding to the same UE are combined and sent to the BBU.

In some possible embodiments, the RHUB may obtain, from the BBU, a resource configuration table corresponding to each first PICO at each time unit. That is, the RHUB may acquire, from the BBU, a new resource configuration table corresponding to each first PICO in each time unit, so as to combine uplink signals sent by the same UE and subsequently received based on the new resource configuration table, and send the uplink signals to the BBU.

The time unit may be one time slot, or may be other time lengths, which is not limited herein.

In some possible 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 the plurality of first PICOs, the resource configuration table corresponding to each first PICO corresponding to the RHUB may be obtained, so as to determine the UE corresponding to each first PICO based on the resource configuration table corresponding to each first PICO.

Further, the RHUB may determine the target UE corresponding to the first SSB beam, and further determine, based on a first mapping relationship between the SSB beam and the PICO, the first PICO corresponding to the target UE as the second PICO corresponding to the first SSB beam, that is, the RHUB may map the first SSB beam onto the first PICO corresponding to the target UE and send the first SSB beam through the air interface, so that the target UE receives the first SSB beam through the corresponding first PICO (that is, the second PICO corresponding to the first SSB beam).

Referring to fig. 3, fig. 3 is another flow chart of the signal processing method provided in the embodiment of the present application. The signal processing method provided by the embodiment of the application can be applied to a baseband processing unit BBU, and specifically can include the following steps:

step S31, a first mapping relation between SSB beams and PICO is determined.

In some possible embodiments, the BBU corresponds to at least one RHUB, each RHUB corresponding to a plurality of PICOs.

The first mapping relationship between the SSB beams and the PICOs is used to indicate the corresponding relationship between each SSB beam configured by the BBU and the multiple PICOs corresponding to the RHUB, and the SSB beam configured by each BBU is sent to the UE through the corresponding PICO.

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

Optionally, in a case that the BBU corresponds to a plurality of RHUB, the BBU may configure a first mapping relationship between a plurality of first PICOs corresponding to each RHUB and SSB beams configured by the BBU.

The number of PICO to be configured is the number of PICO corresponding to all RHIBs corresponding to the BBU.

Specifically, in the case that the number of SSB beams configured by the BBU is greater than the number of PICOs to be configured, the BBU may configure SSB beams configured by at least one BBU corresponding to each PICO to be configured, and SBB beams configured by BBU corresponding to any two PICOs to be configured may be the same or different, and may specifically be determined based on actual application scenario requirements, which is not limited herein.

For example, the index of the SSB beam configured by the BBU and the index of the PICO to be configured may be determined, one SSB beam configured by the BBU is allocated to each PICO to be configured in turn according to the index size, and after each PICO to be configured corresponds to one SSB beam, the SSB beam configured by the BBU is allocated to each PICO to be configured again based on the above manner.

For another example, the index of the SSB beam configured by the BBU and the index of the PICO to be configured may be determined, one SSB beam configured by the BBU is sequentially allocated to each PICO to be configured according to the index size and the fixed index interval, and after each PICO to be configured corresponds to one 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 manner.

For another example, an average number of SSB beams configured by the BBU corresponding to each PICO to be configured may be determined based on the number of PICOs to be configured, and the average number may be rounded down to obtain the allocation number. And further allocating SSB beams configured by BBU with the same allocation number to each PICO to be configured in sequence according to the index size, and finally allocating the rest SSB beams to any one or more PICOs to be configured.

Specifically, in the case that the number of SSB beams configured by the BBU is smaller than the number of PICOs to be configured, the BBU may configure that the SSB beams configured by each BBU correspond to at least one PICO to be configured, and the PICOs to be configured corresponding to the SSB beams configured by any two BBUs may be the same or different, which may be specifically determined based on the actual application scenario requirements, and is not limited herein.

For example, the index of the SSB beams configured by the BBU and the index of the PICO to be configured may be determined, one PICO to be configured is sequentially allocated to each SSB beam configured by the BBU according to the index size, and after each SSB beam configured by the BBU corresponds to one PICO to be configured, the PICO to be configured is allocated to each SSB beam configured by the BBU again based on the above manner.

For another example, the index of the SSB beam configured by the BBU and the index of the PICO to be configured may be determined, one PICO to be configured is sequentially allocated to the SSB beam configured by each BBU according to the index size and the fixed index interval, and after the SSB beam configured by each BBU corresponds to one PICO to be configured, the PICO to be configured is allocated to the SSB beam configured by each BBU again based on the above manner.

For another example, an average number of the PICOs to be configured, which is evaluated and corresponds to the SSB beams configured by each BBU, may be determined based on the number of the PICOs to be configured, and the average number may be rounded down to obtain the allocation number. And further allocating PICO to be configured to SSB beams configured by each BBU in turn according to the index size, and finally allocating the remaining PICO to be configured to SSB beams configured by any one or more BBUs.

Specifically, in the case where the number of SSB beams configured by the BBU is equal to the number of PICOs to be configured, the BBU may configure one PICO to be configured for each SSB beam configured by the BBU, and the PICOs to be configured for SSB beams configured by any two BBUs are different, and the SSB beams configured by any one BBU may correspond to the PICOs configured by Ren Yidai.

It should be specifically noted that, the manner in which the BBU determines the first mapping relationship between the SSB beams configured by the BBU and the PICOs is merely an example, so long as it is satisfied that each PICO to be configured corresponds to at least one SSB beam configured by the BBU if the number of SSB beams configured by the BBU is greater than or equal to the number of PICOs to be configured, or that each SSB beam configured by the BBU corresponds to at least one PICO to be configured if the number of SSB beams configured by the BBU is less than the number of PICOs to be configured, which may be specifically determined based on actual application scenario requirements, and is not limited herein.

It should be specifically noted that, the BBU may also configure the first mapping relationship between a portion of SSB beams in all SSB beams and each first PICO based on the above implementation manner, which is not described herein.

Optionally, in the case that the BBU corresponds to a plurality of RHUB, the BBU may configure a first mapping relationship between the SSB beam and a plurality of first PICOs corresponding to each RHUB, where the configuration manner may be as shown above, and will not be described herein.

And step S32, the first mapping relation is sent to a remote radio hub RHIB.

In some possible embodiments, if the BBU configures, for each RHUB, a first mapping relationship between a plurality of first PICOs corresponding to the RHUB and the SBB beam, the BBU sends each first mapping relationship to the corresponding RHUB.

If the BBU configures a first mapping relationship between all the first PICOs and SSB beams corresponding to each RHUB, the BBU may send the first mapping relationship to each RHUB.

Step S33, a first SSB beam is sent to the RHUB, so that the RHUB determines a 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.

In some possible embodiments, the BBU may send the first SSB beam to the RHUB, so that the RHUB may determine a second PICO for sending the first SSB beam from each of the first PICOs based on a mapping relationship of the SSB beam and the PICOs, so that the first SSB beam is sent through the second PICO.

Acquiring PRACH information sent by each UE, wherein each PRACH information corresponds to one UE, and each PRACH information is received by RHIB through each first PICO and is combined and then sent to the BBU;

For each UE, the UE may determine an index of the received SSB beam based on the measurement result of the received SSB beam, and further initiate random access, that is, transmit PRACH information, based on PRACH resources corresponding to the index of the SSB beam.

Wherein, the UE corresponding to each PICO is a UE corresponding to PRACH information received by the first PICO.

In some possible embodiments, the BBU determines, based on each PRACH information, a UE to which each first PICO corresponds, including:

determining PRACH resources corresponding to each PRACH message;

for each first PICO, determining target PRACH information received by the first PICO based on a second mapping relation between PRACH resources and SSB beams and a first mapping relation between SSB beams and PICO, and determining UE corresponding to the target PRACH information as UE corresponding to the first PICO.

For any PRACH information, the PRACH resource corresponding to the PRACH information is a preamble code resource corresponding to the PRACH information.

The second mapping relation between the PRACH resource and the SSB beam is preconfigured by the BBU, and then the target PRACH information received by each first PICO is determined based on the first mapping relation and the first mapping relation. That is, based on the first mapping relationship and the second mapping relationship, for any first PICO, the BBU may determine target PRACH information received through the first PICO.

Further, for each first PICO, the UE corresponding to the target PRACH information corresponding to the first PICO may be determined as the UE corresponding to the first PICO, that is, the correspondence between each UE and each first PICO may be determined.

In some possible embodiments, when determining the UE corresponding to each first PICO, the BBU may further determine through RHUB receiving SSB measurement information sent by each UE. Specifically, the BBU parses each SSB measurement information to determine an SSB beam corresponding to each SSB measurement information, e.g., determines a beam number of the SSB beam corresponding to each SSB measurement information.

Further, the BBU may determine a first PICO corresponding to each SBB measurement information according to a first mapping relationship between the SSB beam and the PICO. And further determining the first PICO corresponding to each UE based on the mapping relation between the SSB measurement information and the UE and the first PICO corresponding to each SSB measurement information.

In some possible implementations, after determining the UE corresponding to each first PICO, the signal processing method provided in the embodiments of the present application further includes:

and sending each resource configuration table to the RHIB so that the RHIB can combine uplink signals sent by the same UE based on each resource configuration table and then send the uplink signals to the BBU.

The resource configuration table corresponding to each first PICO is specifically configured to indicate which UEs can receive uplink signals sent by the first PICO.

For each UE, the uplink signal sent by the UE may be msg3 information and msg5 information sent by the UE in a random access process, or may be a PUCCH signal or PUSCH signal sent by the UE in other communication processes, such as SSB measurement information, which is not limited herein. In some possible embodiments, when determining the resource configuration table corresponding to each first PICO, the BBU may further determine a configuration resource occupied by the uplink signal sent by each UE, and further determine the resource configuration table corresponding to each first PICO based on the configuration resource occupied by the uplink signal sent by each UE and the correspondence between each first PICO and each UE.

That is, the resource allocation table corresponding to each first PICO may be used to indicate the configuration resources occupied by the uplink signal sent by the UE corresponding to the first PICO. The configuration resource may be a PRB occupied by an uplink signal.

For any first PICO, the resource allocation table corresponding to the first PICO may be used to indicate a plurality of configuration resources, where the configuration resources indicate, through different identifiers, configuration resources occupied by uplink signals sent by each UE corresponding to the first PICO.

In some possible embodiments, the BBU may update the resource configuration table corresponding to each first PICO at each time unit, and send each updated resource configuration table to the RHUB.

That is, the BBU may redetermine the configuration resources occupied by the UE corresponding to each first PICO and/or the uplink signal sent by the UE corresponding to each first PICO in each time unit, so as to update the resource configuration table corresponding to each PICO.

In some possible embodiments, under the condition that the BBU corresponds to the pair of RHUB, in each time unit, each uplink signal in each RHUB combined uplink signal corresponds to one first PICO in one RHUB, that is, when each RHUB combines the uplink signals in each time unit, only the uplink signal received by one first PICO corresponding to each RHUB is combined, so that the noise suppression effect when the uplink signals are combined is further improved.

In the embodiment of the application, RHIB can reduce the noise when all the uplink signals are combined and improve the cell capacity by combining the uplink signals sent by each UE. And RHIB can transmit any SSB wave beam transmitted by BBU through the corresponding PICO, so that the transmission power is saved, and the transmission efficiency of the SSB wave beam is improved.

The embodiment of the application further provides a signal processing device, as shown in fig. 4, fig. 4 is a schematic structural diagram of the signal processing device provided in the embodiment of the application, where the device includes:

a receiving unit 41, configured to receive the first synchronization signal block SSB beam sent by the baseband processing unit BBU;

a first determining unit 42, configured to determine, from a plurality of first PICOs corresponding to a remote radio hub RHUB, a second PICO corresponding to the first SSB beam based on a first mapping relationship between the SSB beam and the PICO, where the first mapping relationship is configured by the BBU;

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

In some possible embodiments, the first sending unit 43 is configured to:

In some possible embodiments, the first SSB beam is a time domain signal, and the first transmitting unit 43 is further configured to:

determining a time slot in which the first SSB is located;

In some possible embodiments, the first mapping relationship includes:

if the number of SSB beams configured by the BBU is smaller than the number of PICOs to be configured, each SSB beam corresponds to at least one PICO to be configured.

In some possible embodiments, the receiving unit 41 is further configured to:

the first transmitting unit 43 is further configured to:

In some possible embodiments, the receiving unit 41 is further configured to:

the first transmitting unit 43 is further configured to:

In some possible embodiments, the resource configuration table corresponding to each of the first PICOs is further configured to indicate a configuration resource occupied by an uplink signal sent by the UE corresponding to the first PICO; for each UE, the first sending unit 43 is configured to:

In some possible embodiments, the receiving unit 41 is configured to:

In some possible embodiments, the first determining unit 42 is further configured to:

The embodiment of the application further provides a signal processing device, as shown in fig. 5, fig. 5 is another schematic structural diagram of the signal processing device provided in the embodiment of the application, where the device includes:

A second determining unit 51, configured to determine a first mapping relationship between the SSB beam and the PICO of the PICO base station;

a second transmitting unit 52, configured to transmit the first mapping relationship to a remote radio hub RHUB, where the RHUB corresponds to a plurality of first PICOs;

the second transmitting unit 52 is configured to transmit a first SSB beam to the RHUB, so that the RHUB determines a second PICO corresponding to the first SSB beam from the plurality of first PICOs based on the first mapping relationship, and transmits the first SSB beam through the second PICO.

In some possible embodiments, the first mapping relationship includes:

In some possible embodiments, the second determining unit 51 is further configured to:

In some possible embodiments, the second determining unit 51 is configured to:

determining PRACH resources corresponding to each PRACH information;

the second transmitting unit 52 is further configured to:

In some possible embodiments, the resource configuration table corresponding to each of the first PICOs is further configured to indicate configuration resources occupied by an uplink signal sent by the UE corresponding to the first PICO.

In some possible embodiments, the second sending unit 52 is configured to:

It should be noted that, in the embodiment of the present application, the division of the modules (units) is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice. In addition, each functional module in each embodiment of the present application may be integrated into one processing module, or each module may exist alone physically, or two or more modules may be integrated into one module. The integrated modules may be implemented in hardware or in software functional modules.

The integrated modules described above, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application, or a part contributing to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the various embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

It should be noted that, the above device provided in this embodiment of the present application can implement all the method steps implemented in the method embodiment and achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in this embodiment are omitted.

As shown in fig. 6, an embodiment of the present application further provides an electronic device, including a memory 602, a transceiver 604, and a processor 601;

a memory 602 for storing a computer program;

a transceiver 604 for receiving and transmitting data under the control of the processor 601;

the electronic device can be used as a remote radio hub RUB or a baseband processing unit BBU;

when the electronic device is a RHUB, the processor 601 is configured to read the computer program in the memory 602 and perform the following operations:

and transmitting the first SSB wave beam through the second PICO.

In some possible embodiments, when the first SSB beam is transmitted through the second PICO, the processor 601 is configured to:

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

determining a time slot in which the first SSB is located;

In some possible embodiments, the first mapping relationship includes:

In some possible embodiments, the above processor 601 is further configured to:

In some possible embodiments, the resource configuration table corresponding to each of the first PICOs is further configured to indicate a configuration resource occupied by an uplink signal sent by the UE corresponding to the first PICO; for each UE, when uplink signals sent by the UE and received through each target first PICO are combined and then sent to the BBU, the processor 601 is configured to:

In some possible embodiments, in acquiring the resource configuration table corresponding to each of the first PICOs, the processor 601 is configured to:

In some possible embodiments, when determining, based on the first mapping relationship between the SSB beam and the PICO base station PICO, the second PICO corresponding to the first SSB beam from the first PICOs corresponding to the RHUB, the processor 601 is configured to:

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

determining a first mapping relation between SSB beams and PICO;

In some possible embodiments, the first mapping relationship includes:

In some possible embodiments, the above processor 601 is further configured to:

In some possible embodiments, when determining, based on each PRACH message, a UE corresponding to each of the first PICOs, the processor 601 is configured to:

determining PRACH resources corresponding to each PRACH information;

In some possible embodiments, the above processor 601 is further configured to:

In some possible embodiments, after determining each UE corresponding to the first PICO, the processor 601 is further configured to:

In some possible embodiments, when each of the resource configuration tables is sent to the RHUB, the processor 601 is configured to:

Wherein in fig. 6, a bus architecture may comprise any number of interconnected buses and bridges, with one or more processors 601, represented in particular by processor 601, and various circuits of memory 602, represented by memory 602, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. Bus interface 603 provides an interface. Transceiver 604 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium, including wireless channels, wired channels, optical cables, etc. 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 in performing operations. When the electronic device is used as a terminal, the user interface 605 may also be an interface capable of being connected to a device in need of connection, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, etc., for different user devices.

The processor 601 may be a Central Processing Unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field programmable gate array (Field-Programmable Gate Array, FPGA), or a complex programmable logic device (ComplexProgrammable Logic Device, CPLD), and the processor 601 may also employ a multi-core architecture.

The processor 601 is configured to execute any of the signal processing methods provided in the embodiments of the present application according to the obtained executable instructions by calling a computer program stored in the memory 602. The processor 601 and the memory 602 may also be physically separate.

Embodiments of the present application also provide a computer readable storage medium storing a computer program for causing the above processor to execute any of the signal processing methods provided in the embodiments of the present application.

The computer readable storage medium may be any available medium or data storage device that can be accessed by a processor, including but not limited to magnetic storage (e.g., floppy disks, hard disks, tapes, magneto-optical disks (MOs), etc.), optical storage (e.g., CD, DVD, BD, HVD, etc.), and semiconductor storage (e.g., ROM, EPROM, EEPROM, non-volatile storage (NANDFLASH), solid State Disk (SSD), etc.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims

1. A signal processing method, applied to a remote radio hub RHUB, the method comprising:

and transmitting the first SSB beam through the second PICO.

2. The method of claim 1, wherein the transmitting the first SSB beam via the second PICO comprises:

if the first SSB wave beam is a frequency domain signal, the first SSB wave beam is converted into a time domain signal through the second PICO and then sent; or,

and if the first SSB wave beam is a time domain signal, the first SSB wave beam is directly sent through the second PICO.

3. The method of claim 2, wherein the first SSB beam is a time domain signal, the method further comprising:

determining a time slot in which the first SSB is located;

4. The method of claim 1, wherein the first mapping relationship comprises:

and if the number of SSB beams configured by the BBU is smaller than the number of PICO to be configured, each SSB beam configured by the BBU corresponds to at least one PICO to be configured.

5. The method according to claim 1, wherein the method further comprises:

and combining each PRACH information and then sending the combined PRACH information to the BBU, so that the BBU determines each UE corresponding to the first PICO based on each PRACH information.

6. The method according to claim 1, wherein the method further comprises:

7. The method of claim 6, wherein each of the resource allocation tables corresponding to the first PICO is further configured to indicate allocation resources occupied by uplink signals sent by UEs corresponding to the first PICO; for each UE, the combining the uplink signals sent by the UE and received by each target first PICO, and sending the combined uplink signals to the BBU, where the combining includes:

8. The method of claim 6, wherein the obtaining the resource configuration table corresponding to each of the first PICOs comprises:

and acquiring a resource configuration table corresponding to each first PICO from the BBU in each time unit.

9. The method of claim 1, wherein the determining, based on the first mapping relationship between SSB beams and PICO base station PICOs, the second PICOs corresponding to the first SSB beams from the plurality of first PICOs corresponding to the RHUB comprises:

and determining a target UE corresponding to the first SSB beam, and determining a first PICO corresponding to the target UE as a second PICO corresponding to the first SSB beam based on a first mapping relation between the SSB beam and the PICO of the PICO base station.

10. A signal processing method, applied to a baseband processing unit BBU, the method comprising:

determining a first mapping relation between SSB beams and PICO;

and sending a first SSB beam to the RHIB, so that the RHIB determines a second PICO corresponding to the first SSB beam from a plurality of first PICO based on the first mapping relation, and sends the first SSB beam through the second PICO.

11. The method of claim 10, wherein the first mapping relationship comprises:

12. The method according to claim 10, wherein the method further comprises:

acquiring PRACH information of a physical random access channel sent by each User Equipment (UE), wherein each PRACH information corresponds to one UE, and each PRACH information is received by the RHIB through each first PICO and is sent to the BBU after being combined;

13. The method of claim 12, wherein the determining each UE corresponding to the first PICO based on each PRACH message comprises:

determining PRACH resources corresponding to each PRACH message;

for each first PICO, determining target PRACH information received by the first PICO based on a second mapping relation between PRACH resources and SSB beams and the first mapping relation, and determining UE corresponding to the target PRACH information as UE corresponding to the first PICO.

14. The method according to claim 10, wherein the method further comprises:

and determining UE corresponding to each first PICO based on the first PICO corresponding to each SSB measurement information.

15. The method of claim 12 or 13, wherein after the determining each UE to which the first PICO corresponds, the method further comprises:

16. The method of claim 15, wherein each of the resource allocation tables corresponding to the first PICO is further configured to indicate allocation resources occupied by uplink signals transmitted by UEs corresponding to the first PICO.

17. The method of claim 15, wherein said sending each of said resource configuration tables to said RHUB comprises:

18. A signal processing apparatus, the apparatus comprising:

a first determining unit, configured to determine, from a plurality of first PICOs corresponding to a remote radio hub RHUB, a second PICO corresponding to a first SSB beam based on a first mapping relationship between the SSB beam and the PICO, where the first mapping relationship is configured by the BBU;

19. A signal processing apparatus, the apparatus comprising:

a second sending unit, configured to send the first mapping relationship to a remote radio hub RHUB, where the RHUB corresponds to a plurality of first PICOs;

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

20. A remote radio hub RHUB, comprising a memory, a transceiver, and a processor:

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:

determining a second PICO corresponding to the first SSB beam from a plurality of first PICO corresponding to a remote radio hub RHOB based on a first mapping relation between the SSB beam and the PICO of the PICO base station, wherein the first mapping relation is configured by the BBU;

and transmitting the first SSB beam through the second PICO.

21. A baseband processing unit BBU, comprising a memory, a transceiver, and a processor:

determining a first mapping relation between SSB beams and PICO;

22. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program for causing the computer to execute the method of any one of claims 1 to 17.