CN113890716A

CN113890716A - Method and device for identifying pRRU and storage medium

Info

Publication number: CN113890716A
Application number: CN202111250948.9A
Authority: CN
Inventors: 马艳君; 郭希蕊; 张涛; 李福昌; 王东洋
Original assignee: China United Network Communications Group Co Ltd
Current assignee: China United Network Communications Group Co Ltd
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-01-04

Abstract

The application provides a method, a device and a storage medium for identifying pRRU, which relate to the technical field of communication and are used for solving the problem that a base station cannot identify the pRRU to which a user terminal belongs, and the method comprises the following steps: after receiving the target message sent by the terminal, the base station may determine, based on the target message, an SSB corresponding to the target message. Subsequently, the base station may determine a target pRRU group according to the mapping relationship between the SSB and the pRRU group, and determine a pRRU to which the terminal belongs from the pRRU group. The operator can provide differentiated services for different terminals by using the coverage area of each pRRU identified by the base station, thereby supporting new functions and new applications of the pRRUs under more indoor distribution systems.

Description

Method and device for identifying pRRU and storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for identifying a pRRU, and a storage medium.

Background

With the rapid development of the fifth generation mobile communication technology (5th generation mobile communication technology, 5G), the indoor subsystem is widely used. The indoor subsystem is a three-level architecture, and includes a Base Band Unit (BBU), a remote radio unit hub (RHUB), and a micro remote radio unit (pRRU). Wherein one BBU can be linked to one or more RHUBs, one RHUB can be linked to multiple prrus, each pRRU covering an area.

In the process of service transmission between the base station and the user terminal, the base station can respectively send downlink signals to the user terminal under the coverage range of the base station through each pRRU in the indoor subsystem. Accordingly, the user terminal may transmit an uplink signal to the base station through the pRRU covering the current range.

At present, an operator can divide the coverage area of the pRRU in the indoor distribution system into different application scenes, so that differentiated services can be provided in the different application scenes, and better service experience is brought to users.

However, in the process of transmitting the uplink signal, the RHUB first aggregates the uplink signals passing through the prrus, and then transmits the aggregated uplink signals to the base station. Therefore, the base station cannot determine to which pRRU the user terminal belongs for each uplink signal, so that the base station cannot support new functions of more indoor subsystems and application of new technologies.

Disclosure of Invention

The application provides a method, a device and a storage medium for identifying a pRRU to which a terminal belongs.

In order to achieve the purpose, the technical scheme is as follows:

in a first aspect, there is provided a method of identifying a pRRU, comprising: after the base station receives the target message sent by the terminal, the base station may determine a synchronization signal and PBCH block (SSB) corresponding to the target message based on the target message. Subsequently, the base station may determine a target pRRU group according to the mapping relationship between the SSB and the pRRU group, and determine a pRRU to which the terminal belongs from the pRRU group.

Optionally, the method further includes: performing a grouping operation on the pRRUs within the target area to obtain at least one pRRU group; the grouping operation includes: creating at least one pRRU group according to a first preset condition; the first preset condition includes: the number of at least one pRRU group is equal to the number of pRRUs if the number of pRRUs is less than or equal to the number of SSBs in an SSB beam transmitted to the terminal; if the number of pRRUs is greater than the number of SSBs, then the number of at least one pRRU group is equal to the number of SSBs; performing a creation operation on the at least one pRRU group to obtain a mapping relation between the at least one pRRU group and the SSB; the creating operation includes: when the number of the at least one pRRU group is smaller than the number of the SSBs, selecting the at least one SSB with the same number as the at least one pRRU group from the SSB beam, and creating a one-to-one mapping relation between the at least one SSB and the at least one pRRU group; when the number of the at least one pRRU group is equal to the number of SSBs, a one-to-one mapping of SSBs to the at least one pRRU group is created.

Optionally, the target area is a cell to which the terminal belongs, or a coverage area corresponding to one pRRU group.

Optionally, before receiving the target message sent by the terminal, the method further includes: performing a first operation on each of the at least one pRRU groups; the first operation includes: and at the time corresponding to the first SSB, transmitting the first SSB to the terminal through a first pRRU group corresponding to the first SSB, and controlling other pRRU groups except the first pRRU group to perform symbol turn-off processing.

Optionally, the method for determining the target pRRU to which the terminal belongs from the target pRRU group specifically includes: when the number of pRRUs in the target pRRU group is greater than 1, sequentially performing a grouping operation, a creating operation, a first operation and a second operation on the target pRRU group until the terminal acquires SSB corresponding to the target pRRU; the second operation is to instruct the terminal to send the target message.

Optionally, the method for determining the target pRRU to which the terminal belongs from the target pRRU group specifically includes: when the number of pRRUs in the target pRRU group is equal to 1, determining the pRRUs in the target pRRU group as target pRRUs.

Optionally, when a communication connection is initially established with the terminal, the target message is a first message (message1, Msg1) sent at a time-domain sending location of an uplink Physical Random Access Channel (PRACH); when a communication connection is established with the terminal, the target message includes Reference Signal Received Power (RSRP).

In a second aspect, there is provided an apparatus for identifying a pRRU, comprising: a receiving unit and a determining unit; the receiving unit is used for receiving a target message sent by a terminal; a determining unit, configured to determine a target SSB corresponding to the target message; the determining unit is further configured to read a mapping relationship between the SSB and the pRRU set, which is created in advance, and determine a target pRRU set corresponding to the target SSB; and the determining unit is also used for determining the target pRRU to which the terminal belongs from the target pRRU group.

Optionally, the apparatus for identifying a pRRU further includes: a processing unit, configured to perform a grouping operation on the prrus within the target area to obtain at least one pRRU group; the grouping operation includes: creating at least one pRRU group according to a first preset condition; the first preset condition includes: the number of at least one pRRU group is equal to the number of pRRUs if the number of pRRUs is less than or equal to the number of SSBs in an SSB beam transmitted to the terminal; if the number of pRRUs is greater than the number of SSBs, then the number of at least one pRRU group is equal to the number of SSBs; the processing unit is further used for performing a creating operation on the at least one pRRU group to obtain the mapping relation between the at least one pRRU group and the SSB; the creating operation includes: when the number of the at least one pRRU group is smaller than the number of the SSBs, selecting the at least one SSB with the same number as the at least one pRRU group from the SSB beam, and creating a one-to-one mapping relation between the at least one SSB and the at least one pRRU group; when the number of the at least one pRRU group is equal to the number of SSBs, a one-to-one mapping of SSBs to the at least one pRRU group is created.

Optionally, the apparatus for identifying a pRRU further includes: a transmission unit configured to perform a first operation on each of the at least one pRRU group divided by the processing unit; the first operation includes: and at the time corresponding to the first SSB, transmitting the first SSB to the terminal through a first pRRU group corresponding to the first SSB, and controlling other pRRU groups except the first pRRU group to perform symbol turn-off processing.

Optionally, the determining unit is specifically configured to, when the number of prrus in the target pRRU group is greater than 1, sequentially perform a grouping operation, a creating operation, a first operation, and a second operation on the target pRRU group until the base station determines an SSB corresponding to the target pRRU; the second operation is to instruct the terminal to send the target message.

Optionally, the determining unit is specifically configured to determine the pRRU in the target pRRU group as the target pRRU when the number of prrus in the target pRRU group is equal to 1.

Optionally, when a communication connection is established with the terminal for the first time, the target message is Msg1 sent at the time domain sending position of the uplink PRACH channel; and after the communication connection is established with the terminal, the target message comprises the RSRP.

In a third aspect, an apparatus is provided that identifies a pRRU, including a memory and a processor. The memory is used for storing computer execution instructions, and the processor is connected with the memory through a bus. When the apparatus for identifying a pRRU is operating, the processor executes computer-executable instructions stored by the memory to cause the communication apparatus to perform the method for identifying a pRRU of the first aspect.

The apparatus for identifying the pRRU may be a network device, or may be a part of a network device, such as a system-on-chip in the network device. The system-on-chip is configured to support a network device to implement the functions referred to in the first aspect and any one of its possible implementations, e.g., to receive, determine, transmit data and/or information referred to in the above-mentioned method of identifying a pRRU. The chip system includes a chip and may also include other discrete devices or circuit structures.

In a fourth aspect, a computer-readable storage medium is provided, the computer-readable storage medium comprising computer-executable instructions that, when executed on a computer, cause the computer to perform the method of identifying a pRRU of the first aspect.

In a fifth aspect, a computer program product is provided, which comprises computer instructions that, when run on a computer, cause the computer to perform the method of identifying a pRRU as described above in the first aspect and its various possible implementations.

It should be noted that all or part of the above computer instructions may be stored on the first computer readable storage medium. The first computer-readable storage medium may be packaged with or separately from a processor of the apparatus for identifying the pRRU, which is not limited in this application.

For the descriptions of the second, third, fourth and fifth aspects in this application, reference may be made to the detailed description of the first aspect; in addition, for the beneficial effects described in the second aspect, the third aspect, the fourth aspect and the fifth aspect, reference may be made to beneficial effect analysis of the first aspect, and details are not repeated here.

In the present application, the names of the above-mentioned means for identifying the pRRU do not constitute limitations on the devices or functional modules themselves, which may appear by other names in an actual implementation. Insofar as the functions of the respective devices or functional modules are similar to those of the present application, they fall within the scope of the claims of the present application and their equivalents.

These and other aspects of the present application will be more readily apparent from the following description.

The technical scheme provided by the application at least brings the following beneficial effects:

based on any one of the above aspects, after receiving the target message sent from the terminal, the base station may determine the target SSB corresponding to the target message. Subsequently, the base station may determine, according to a mapping relationship between SSBs and pRRU groups created in advance, a pRRU group corresponding to the target SSBs, and further determine, from the target pRRU group, a target pRRU to which the terminal belongs. Therefore, the base station can determine the pRRU to which each terminal belongs based on the same method, and provide differentiated services for different terminals by using the coverage area of each pRRU, thereby supporting new functions and new applications of pRRUs under more indoor distribution systems.

Drawings

Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application;

fig. 2A is a schematic hardware structure diagram of an apparatus for identifying a pRRU according to an embodiment of the present disclosure;

fig. 2B is a schematic hardware structure diagram of another apparatus for identifying a pRRU according to an embodiment of the present disclosure;

fig. 3 is a schematic flowchart of a method for identifying pRRU according to an embodiment of the present disclosure;

fig. 4 is a schematic flowchart of another method for identifying pRRU according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of an apparatus for identifying a pRRU according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

For the convenience of clearly describing the technical solutions of the embodiments of the present application, in the embodiments of the present application, the terms "first" and "second" are used to distinguish the same items or similar items with basically the same functions and actions, and those skilled in the art can understand that the terms "first" and "second" are not used to limit the quantity and execution order.

As described in the background, with the rapid development of 5G communication technology, a base station may perform signal interaction through an indoor subsystem user terminal. Currently, operators may be divided into different application scenarios according to the coverage of prrus in indoor distribution systems. However, the base station cannot determine to which pRRU the user terminal belongs for each uplink signal, so that the base station cannot support new functions of more indoor subsystems and application of new technologies.

In view of the above problem, an embodiment of the present application provides a method for identifying a pRRU, including: after receiving the target message sent by the terminal, the base station may determine a target SSB corresponding to the target message. Subsequently, the base station may determine, according to a mapping relationship between SSBs and pRRU groups created in advance, a pRRU group corresponding to the target SSBs, and further determine, from the target pRRU group, a target pRRU to which the terminal belongs. Therefore, the base station can determine the pRRU to which each terminal belongs based on the same method, and provide differentiated services for different terminals by using the coverage area of each pRRU, thereby supporting new functions and new applications of pRRUs under more indoor distribution systems.

The method for identifying the pRRU provided by the embodiment of the application is suitable for the communication system 100. Fig. 1 shows one configuration of the communication system 100. As shown in fig. 1, the communication system 100 includes: base station 110, RHUB120, pRRU130, and terminal 140. Wherein, RHUB120 is respectively connected with base station 110 and pRRU130, and pRRU130 is respectively connected with RHUB120 and terminal 140.

In practical applications, the base station 110 may be connected to a plurality of RHUBs 120. One RHUB120 may be linked to multiple prrus 130. One pRRU130 may connect a plurality of terminals 140. Fig. 1 illustrates an example in which the base station 110 is connected to one RHUB120, one RHUB120 is connected to one pRRU130, and one pRRU130 is connected to one terminal 140.

Alternatively, the base station 110 in fig. 1 may be a base station or a base station controller for wireless communication, etc. In this embodiment, the base station may be a base station (BTS) in a global system for mobile communication (GSM), Code Division Multiple Access (CDMA), a base station (node B) in a Wideband Code Division Multiple Access (WCDMA), a base station (eNB) in an internet of things (IoT) or a narrowband internet of things (NB-IoT), a base station in a future 5G mobile communication network or a future evolved Public Land Mobile Network (PLMN), which is not limited in this embodiment.

Optionally, the base station 110 provided in the embodiment of the present application may include the BBU111, and the BBU111 may perform a method for identifying a pRRU, which is performed by a base station described below. For convenience of understanding, the embodiment of the present application is described by taking a method in which the base station 110 performs pRRU identification as an example.

The RHUB120 in fig. 1 may be a hub, a switch, or a router or other device. Each RHUB can manage at least one cell, and after receiving uplink data sent by a user terminal, a plurality of prrus in each cell report the uplink data to a BBU for processing by managing the RHUB of the cell.

The pRRU130 in fig. 1 may be an antenna apparatus or the like. The pRRU is used for realizing radio frequency signal processing functions, an integrated antenna or an external antenna can be built in the pRRU, and a plurality of pRRUs can be deployed in one cell. And the plurality of pRRUs realize radio frequency combination on the RHUB, and each cell realizes independent demodulation.

Terminal 140 in fig. 1 may refer to a device that provides voice and/or data connectivity to a user, a handheld device having wireless connection capability, or other processing device connected to a wireless modem. A wireless terminal may communicate with one or more core networks via a Radio Access Network (RAN). The wireless terminals may be mobile terminals such as mobile phones (or "cellular" phones) and computers with mobile terminals, as well as portable, pocket, hand-held, computer-included, or vehicle-mounted mobile devices that exchange language and/or data with a wireless access network, such as cell phones, tablets, laptops, netbooks, Personal Digital Assistants (PDAs).

The basic hardware structures of base station 110, RHUB120, pRRU130, and terminal 140 in communication system 100 are similar, and all include elements included in the apparatus for identifying a pRRU shown in fig. 2A or fig. 2B. The hardware structures of the base station 110, the RHUB120, the pRRU130, and the terminal 140 will be described below by taking the apparatus for identifying the pRRU shown in fig. 2A and 2B as an example.

Fig. 2A is a schematic diagram of a hardware structure of an apparatus for identifying a pRRU according to an embodiment of the present disclosure. The communication device comprises a processor 21, a memory 22, a communication interface 23, a bus 24. The processor 21, the memory 22 and the communication interface 23 may be connected by a bus 24.

The processor 21 is a control center of the communication apparatus, and may be a single processor or a collective term for a plurality of processing elements. For example, the processor 21 may be a Central Processing Unit (CPU), other general-purpose processors, or the like. Wherein a general purpose processor may be a microprocessor or any conventional processor or the like.

For one embodiment, processor 21 may include one or more CPUs, such as CPU 0 and CPU 1 shown in FIG. 2A.

The memory 22 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that may store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that may store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.

In a possible implementation, the memory 22 may exist separately from the processor 21, and the memory 22 may be connected to the processor 21 via a bus 24 for storing instructions or program codes. The processor 21, when calling and executing the instructions or program codes stored in the memory 22, can implement the communication method provided by the embodiment of the present invention.

In another possible implementation, the memory 22 may also be integrated with the processor 21.

And a communication interface 23 for connecting with other devices through a communication network. The communication network may be an ethernet network, a radio access network, a Wireless Local Area Network (WLAN), or the like. The communication interface 23 may include a receiving unit for receiving data, and a transmitting unit for transmitting data.

The bus 24 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 2A, but it is not intended that there be only one bus or one type of bus.

It is to be noted that the structure shown in fig. 2A does not constitute a limitation of the means for identifying pRRU. In addition to the elements shown in fig. 2A, the means for identifying a pRRU may include more or fewer elements than shown, or some elements may be combined, or a different arrangement of elements.

Fig. 2B illustrates another hardware structure of the apparatus for identifying a pRRU in the embodiment of the present application. As shown in fig. 2B, the communication device may include a processor 31 and a communication interface 32. The processor 31 is coupled to a communication interface 32.

The function of the processor 31 may refer to the description of the processor 21 above. The processor 31 also has a memory function, and the function of the memory 22 can be referred to.

The communication interface 32 is used to provide data to the processor 31. The communication interface 32 may be an internal interface of the communication device, or may be an external interface (corresponding to the communication interface 23) of the communication device.

It is noted that the structure shown in fig. 2A (or fig. 2B) does not constitute a limitation of the means for identifying the pRRU, and the communication apparatus may include more or less elements than those shown in fig. 2A (or fig. 2B), or combine some elements, or a different arrangement of elements, in addition to the elements shown in fig. 2A (or fig. 2B).

The method for identifying the pRRU according to the embodiment of the present application will be described in detail below with reference to the communication system shown in fig. 1 and the apparatus for identifying the pRRU shown in fig. 2A (or fig. 2B).

Fig. 3 shows a flowchart of a method for identifying a pRRU according to an embodiment of the present disclosure. The method for identifying the pRRU may be applied to a base station and a terminal in the communication system shown in fig. 1, and includes: S301-S314.

S301, the base station determines the number of pRRUs in the target area.

Specifically, in identifying the prrus, the base station first needs to determine the number of prrus within the target area.

Optionally, the target area may be a cell to which the terminal belongs, that is, a cell covered by the base station; or may be a coverage area corresponding to one pRRU group. Wherein one pRRU group comprises at least one pRRU.

When the target area is a cell to which the terminal belongs and the base station establishes communication connection with the terminal under the cell for the first time, the base station does not store the number of pRRUs in the cell to which the terminal belongs. In this case, the base station may send a request message for requesting to acquire the number of prrus in the cell to the RHUB, or wait for the RHUB to periodically report pRRU information including the number of prrus to which the RHUB is connected and a coverage area. Subsequently, after receiving the pRRU information transmitted by the RHUB, the base station may extract the number of prrus in the target area from the pRRU information.

Illustratively, the preset target area is a cell a to which the terminal a belongs, and the base station initially establishes a communication connection with the terminal a, and the number of prrus in the pRRU information sent by the received RHUB is shown in table 1.

TABLE 1

RHUB for cell A deployment	Number of pRRU
		RHUB1	8
RHUB2	7
		RHUB3	8
RHUB4	5

As can be seen from table 1 above, there are 28 prrus in total in target region cell a.

When the target area is a cell to which the terminal belongs and the base station has established a communication connection with the terminal in the cell, the information stored by the base station includes the number of prrus in the cell to which the terminal belongs, and at this time, the base station can directly determine the number of prrus in the target area.

Illustratively, the preset target area is a cell a to which a terminal a belongs, and the base station has established a communication connection with a terminal b under the cell a, and the number of prrus in the cell in the information stored by the base station is shown in table 2.

TABLE 2

Base station stored cell	Number of pRRU
		Cell A	28
Cell B	32
		Cell C	48
Cell D	40

As can be seen from table 2 above, the number of prrus in target area cell a is 28.

When the target area is a coverage area corresponding to one pRRU group, the method indicates that the base station groups all pRRUs in a cell to which the terminal belongs, or the base station groups a certain pRRU subgroup after grouping again. In this case, the base station may determine the number of prrus within the current target area according to the grouping operation.

Illustratively, the preset target area is pRRU group i, and the number of prrus in at least one pRRU group among information stored by the base station in the grouping operation is shown in table 3.

TABLE 3

At least one pRRU group	Number of pRRU
		pRRU group I	2
pRRU group II	2
		pRRU group III	2
pRRU group IV	3

In conjunction with table 3 above, since the target region is pRRU group i, the number of prrus in the target region is 2.

As another example, the preset target area is a subset pRRU group i after the base station re-groups the pRRU group i, and the number of prrus in the subset pRRU group i in the information stored by the base station in the grouping operation is 1, the base station determines that the number of prrus in the target area is 1.

S302, the base station performs grouping operation on the pRRUs in the target area to obtain at least one pRRU group.

Specifically, after determining the number of prrus within the target area, the base station performs a grouping operation on the prrus within the target area based on the number of prrus within the target area to obtain at least one pRRU group. Wherein each at least one pRRU group comprises at least one pRRU.

Wherein the grouping operation comprises: creating at least one pRRU group according to a first preset condition; the first preset condition includes: the number of at least one pRRU group is equal to the number of pRRUs if the number of pRRUs is less than or equal to the number of SSBs in an SSB beam transmitted to the terminal; if the number of pRRUs is greater than the number of SSBs, then the number of at least one pRRU group is equal to the number of SSBs.

Specifically, when the number of prrus in the target area is less than or equal to the number of SSBs in the SSB beam transmitted by the base station to the terminal, a corresponding different SSB transmission may be performed for each pRRU, so that a subsequent base station may determine a corresponding pRRU according to the different SSBs. Accordingly, the base station divides the prrus within the target area into at least one pRRU group equal to the number of prrus within the target area.

Illustratively, the pre-configured base station determines that there are 8 prrus in the target area and 8 SSBs in the SSB beams transmitted to the terminal. Since the number of prrus in the target area is 8, which is equal to the number of SSBs in the SSB beam transmitted by the base station to the terminal, the base station divides the 8 prrus in the target area into 8 pRRU groups.

As another example, the pre-configured base station determines that there are 6 prrus in the target area and 8 SSBs in the SSB beam transmitted to the terminal. Since the number of prrus in the target area is 6, which is smaller than the number of SSBs in the SSB beam transmitted by the base station to the terminal, the base station divides the 6 prrus in the target area into 6 pRRU groups.

When the number of pRRUs in the target area is greater than the number of SSBs in SSB beams transmitted by the base station to the terminal, in order to ensure that each pRRU can have a corresponding SSB to transmit, the at least one pRRU group in which the corresponding pRRU belongs is determined according to different SSBs. Accordingly, the base station divides prrus within the target area into at least one pRRU group equal to the number of SSBs in the SSB beams transmitted by the base station to the terminal.

Illustratively, the pre-configured base station determines that there are 12 prrus in the target area and 8 SSBs in the SSB beams sent to the terminal. Since the number of prrus in the target area is 12, which is greater than the number of SSBs in the SSB beam transmitted by the base station to the terminal, the base station divides the 12 prrus in the target area into 8 pRRU groups.

Optionally, the base station may further store pRRU group information for each pRRU group. The pRRU group information comprises the number of pRRUs in the group, coverage area and other relevant data.

S303, the base station performs creation operation on the at least one pRRU group to obtain the mapping relation between the at least one pRRU group and the SSB.

Specifically, after performing a grouping operation on the pRRU in the target area to obtain at least one pRRU group, the base station may perform a creating operation on the at least one pRRU group to obtain a mapping relationship between the at least one pRRU group and the SSB.

Wherein the creating operation comprises: when the number of the at least one pRRU group is smaller than the number of the SSBs, selecting the at least one SSB with the same number as the at least one pRRU group from the SSB beam, and creating a one-to-one mapping relation between the at least one SSB and the at least one pRRU group; when the number of the at least one pRRU group is equal to the number of SSBs, a one-to-one mapping of SSBs to the at least one pRRU group is created.

Optionally, when the base station creates a one-to-one mapping relationship between at least one SSB and at least one pRRU group, a unique identifier may be added to each pRRU group and each SSB.

Alternatively, the unique identification of each pRRU group may be an index of each pRRU group. Accordingly, the unique identification of each SSB may be an index to each SSB.

Subsequently, the base station creates a one-to-one mapping relation between at least one SSB and at least one pRRU group according to the unique identification of each pRRU group and the unique identification of each SSB.

Specifically, when the number of at least one pRRU group is less than the number of SSBs, a different SSB may be mapped for each at least one pRRU group, such that the mapped at least one pRRU group is subsequently determined from the different SSBs. Therefore, the base station selects at least one SSB from the SSB beam, the number of which is the same as that of the at least one pRRU group, and creates a one-to-one mapping relationship between the at least one SSB and the at least one pRRU group.

Illustratively, the pre-set base station determines 6 prrus in the target area, 8 SSBs in SSB beams transmitted to the terminal, and the base station divides the 6 prrus in the target area into 6 pRRU groups in a grouping operation. Since the number of at least one pRRU group is smaller than the number of SSBs, 6 SSBs are selected from the SSB beams, and a one-to-one mapping relationship of the 6 SSBs and the 6 pRRU groups is created and stored.

When the number of the at least one pRRU group is equal to the number of SSBs, a different SSB may be mapped for each at least one pRRU group, such that the mapped at least one pRRU group is subsequently determined from the different SSBs. Accordingly, the base station creates a one-to-one mapping of the at least one SSB to the at least one pRRU group.

Illustratively, the pre-configured base station determines that there are 12 prrus in the target area, there are 8 SSBs in the SSB beams transmitted to the terminal, and the base station divides the 12 prrus in the target area into 8 pRRU groups in a grouping operation. Since the number of at least one pRRU group is equal to the number of SSBs, a one-to-one mapping of 8 SSBs to 8 pRRU groups is created.

Optionally, the base station may also store the creation information. Wherein the creation information includes a one-to-one mapping relationship of the SSB and the at least one pRRU group.

S304, the base station performs a first operation on each pRRU group of the at least one pRRU group.

Specifically, after the base station groups the prrus in the target area and creates a one-to-one mapping relationship between the SSB and the at least one pRRU group, the base station may perform a first operation on each of the at least one pRRU group.

Wherein the first operation comprises: and at the time corresponding to the first SSB, transmitting the first SSB to the terminal through a first pRRU group corresponding to the first SSB, and controlling other pRRU groups except the first pRRU group to perform symbol turn-off processing.

In this case, the base station transmits the SSB to the terminal in the first operation method described above.

Optionally, the base station may perform symbol turn-off on the pRRU by methods such as turning off a radio frequency channel and turning off a power amplifier.

Illustratively, the preset base station determines 8 prrus within the target area, pRRU0, pRRU1, pRRU2, pRRU3, pRRU4, pRRU5, pRRU6, pRRU7, respectively. Presetting 4 SSBs supported in an SSB period sent by a base station to a terminal, wherein the SSBs are respectively as follows: SSB i, SSB ii, SSB iii, SSB iv. In the grouping operation, the base station divides 8 prrus in the target area into 4 pRRU groups, which are: pRRU group I, pRRU group II, pRRU group III, and pRRU group IV. Then, the SSB created by the base station in the creating operation is mapped to the 4 pRRU groups as shown in table 4.

TABLE 4

pRRU group	SBB
		Ⅰ[0,1]	ⅰ
Ⅱ[2,3]	ⅱ
		Ⅲ[4,5]	ⅲ
Ⅳ[6,7]	ⅳ

With reference to table 4, at the time corresponding to ssbi, the base station may transmit ssbi to the terminal through pRRU0 and pRRU1, and control pRRU2-7 to perform symbol off processing. Accordingly, at the time corresponding to ssbsii, the base station may transmit ssbsii to the terminal through pRRU2 and pRRU3, and control pRRU0-1 and pRRU4-7 to perform symbol off processing. Accordingly, at a time corresponding to the SSB iii, the base station transmits the SSB iii to the terminal through the pRRU4 and the pRRU5, and controls the pRRU0-3 and the pRRU6-7 to perform symbol off processing. Correspondingly, at the time corresponding to the SSBiv, the base station sends the SSBiv to the terminal through the pRRU6 and the pRRU7, and controls the pRRU0-5 to perform symbol turn-off processing.

S305, the terminal receives the SSB and measures the reference signal received power (synchronization signal received power) SS-RSRP of the synchronous signal.

Specifically, after the base station transmits the SSBs by performing the first operation, the terminal may receive different SSBs transmitted by the base station through the corresponding pRRU group at the index time corresponding to the different SSBs. After the terminal receives different SSBs, the terminal measures the received SS-RSRP of each SSB.

Optionally, the terminal may also store measurement data. The measurement data comprises SS-RSRP of each SSB received by the terminal.

S306, the terminal determines the SSB corresponding to the SS-RSRP meeting the preset condition as a target SSB.

Specifically, when the terminal and the base station establish communication connection for the first time, after the terminal measures the SS-RSRP of the SSB sent by the base station at the time corresponding to different SSBs, in order to determine the target SSB mapped by the target pRRU group where the pRRU to which the terminal belongs is located, the terminal determines the SSB corresponding to the SS-RSRP that meets the preset condition as the target SSB.

Optionally, the preset condition may be the SS-RSRP with the largest value among SS-RSRPs of the SSBs measured by the terminal, or may be the SS-RSRP with a value within a preset range among SS-RSRPs of the SSBs measured by the terminal.

For example, the preset terminal receives SSBs sent by the base station at index times corresponding to different SSBs, where the SSBs are: SSB i, SSB ii, SSB iii, SSB iv. Table 5 shows the SS-RSRP of the SSBs measured by the terminal.

TABLE 5

SSB received by terminal	SS-RSRP(dBm)
		ⅰ	-109
ⅱ	-72
		ⅲ	-106

With reference to table 5, when the preset condition is that the value of the SS-RSRP of the SSB measured by the terminal is the largest, the terminal determines that ssbii is the target SSB because the value of the SS-RSRP of ssbii measured by the terminal is the largest.

S307, the terminal determines the time domain sending position of the uplink PRACH channel based on the target SSB.

Specifically, when the terminal establishes communication connection with the base station for the first time, after the terminal determines the target SSB, the time domain transmission position of the uplink PRACH channel is determined according to the mapping relationship between the time domain transmission position of the uplink PRACH channel and the SSB.

Optionally, the terminal determines the time domain transmission location of the uplink PRACH channel by looking up a Table (38.211Table 6.3.3.2) according to a configuration method of high-level parameters SSB-perRACH-occupancy, CB-preambles Perssb, and PRACHconfiguration index specified in the protocol 38.211.

For example, a preset base station supports 4 SSBs in one SSB period sent to a terminal, where the SSBs are: SSB i, SSB ii, SSB iii, SSB iv. When the terminal determines that the ssbb ii is the target SSB, the terminal may determine, according to the configuration methods of the higher layer parameters SSB-perRACH-occupancy, CB-preambles Perssb and PRACHconfiguration index specified in the protocol 38.211, Table look-up (38.211Table 6.3.3.2) to determine that the time domain transmission position of the uplink PRACH channel corresponding to the target SSB is the time slot X, and the method for specifically determining the time domain transmission position of the uplink PRACH channel corresponding to the target SSB may refer to the description in the protocol 38.211 in the prior art, which is not described herein again.

S308, the terminal sends the target message to the base station at the time domain sending position of the uplink PRACH channel.

Specifically, when the terminal and the base station establish a communication connection for the first time, in order to enable the base station to determine a target SSB corresponding to a time-domain transmission position of an uplink PRACH channel for transmitting a target message, the terminal transmits the target message to the base station at the time-domain transmission position of the uplink PRACH channel. Correspondingly, the base station receives the target message sent by the terminal and acquires the time domain sending position of the uplink PRACH channel for sending the target message.

Alternatively, the target message may be a first message (message1, Msg 1).

S309, the base station reads the mapping relation between the pre-stored time domain sending position of the uplink PRACH and the SSB, and determines the target SSB corresponding to the target message.

Specifically, when the terminal and the base station establish a communication connection for the first time, after the base station acquires the time-domain transmission position of the uplink PRACH channel for transmitting the target message, the base station may read a pre-stored mapping relationship between the time-domain transmission position of the uplink PRACH channel and the SSB, and determine the target SSB corresponding to the time-domain transmission position of the uplink PRACH channel for transmitting the target message.

Optionally, the base station obtains the configurations of the high-level parameters SSB-perRACH-occupancy, CB-preamblisperssb, and PRACHconfiguration index of the uplink PRACH channel for transmitting the target message, and then determines the target SSB corresponding to the time-domain transmission position of the uplink PRACH channel for transmitting the target message according to a Table look-up (38.211Table 6.3.3.2) by the protocol 38.211.

For example, a preset base station supports 4 SSBs in one SSB period sent to a terminal, where the SSBs are: SSB i, SSB ii, SSB iii, SSB iv. When the base station determines that the time domain transmission position of the uplink PRACH channel for transmitting the target message is the time slot X, the base station acquires the configuration of high-level parameters SSB-perRACH-Ocvasion, CB-preamplesPerSSB and PRACHconfiguration index of the uplink PRACH channel for transmitting the target message, and then determines that SSBii corresponding to the time domain transmission position of the uplink PRACH channel for transmitting the target message is the target SSB according to a protocol 38.211Table look-up (38.211Table 6.3.3.2). For a specific method for determining a target SSB corresponding to a time-domain transmission position of an uplink PRACH channel, reference may be made to description in a protocol 38.211 in the prior art, which is not described herein again.

S310, the base station reads the mapping relation between the SSB and the pRRU group which is created in advance, and determines a target pRRU group corresponding to the target SSB.

Specifically, after the base station reads a mapping relationship between a pre-stored target message and the SSB and determines a target SSB corresponding to the target message, the base station may read a pre-created mapping relationship between the SSB and the pRRU group and determine a target pRRU group corresponding to the target SSB.

Illustratively, the subscribing base station determines ssbb ii as the target SSB. With reference to table 4, the base station reads the mapping relationship between the SSB and the pRRU group obtained in the creating operation, and determines the pRRU group ii corresponding to the target SSB as the target pRRU group.

The base station determines the pRRU in the target pRRU group as a target pRRU when the number of prrus in the target pRRU group is equal to 1S 311.

Specifically, after the base station determines the target pRRU group, in order to further determine the pRRU to which the terminal belongs, the base station may first determine the number of prrus in the target pRRU group, and when the number of prrus in the target pRRU group is equal to 1, the base station determines a unique pRRU in the target pRRU group as the target pRRU.

Illustratively, the pre-configured base station determines pRRU group ii as the target pRRU group, and 1 pRRU in pRRU group ii is pRRU 1. Since the number of prrus in the target pRRU group is equal to 1, the base station determines pRRU1 in pRRU group ii as the target pRRU.

And S312, when the number of pRRUs in the target pRRU group is more than 1, the base station sequentially performs a grouping operation, a creating operation, a first operation and a second operation on the target pRRU group.

Specifically, when the number of prrus in the target pRRU group is greater than 1, the base station performs the grouping operation, the creating operation, the first operation, and the second operation again on the plurality of prrus in the target pRRU group, so that the base station obtains the pRRU subgroup in the target pRRU group and the target message corresponding to the pRRU subgroup. Wherein the second operation is to instruct the terminal to send the target message.

Optionally, the second operation may be: after the terminal establishes connection with the base station, sending downlink information for acquiring RSRP to the terminal; or the following steps: and sending a downlink message for acquiring RSRP to the terminal, and creating a one-to-one mapping relation between the SFN and the pRRU subgroups when the CSI-RS is sent.

And when the second operation is that after the terminal establishes connection with the base station, the terminal sends a downlink message for acquiring the RSRP, the RSRP is SS-RSRP. S313 is performed.

Optionally, the downlink message may be a channel state information-reference signal (CSI-RS).

When the downlink message is CSI-RS, the base station transmits CSI to the terminal through the first pRRU subgroup at a time corresponding to a first System Frame Number (SFN) according to a CSI period, and controls other pRRU subgroups except the first pRRU subgroup to perform symbol turn-off processing.

Illustratively, the preset base station determines 4 prrus within the target pRRU group, pRRU0, pRRU1, pRRU2, and pRRU3, respectively. Presetting 4 SSBs supported in an SSB period sent by a base station to a terminal, wherein the SSBs are respectively as follows: SSB i, SSB ii, SSB iii, SSB iv. In the grouping operation, the base station divides 4 prrus in the target pRRU group into 4 pRRU subgroups, which are: pRRU subgroup I, pRRU subgroup II, pRRU subgroup III and pRRU subgroup IV. Then, the SSB created by the base station in the creating operation is mapped to the 4 pRRU subgroups as shown in table 6.

TABLE 6

pRRU subgroup	SBB
		Ⅰ[0]	ⅰ
Ⅱ[1]	ⅱ
		Ⅲ[2]	ⅲ
Ⅳ[3]	ⅳ

With reference to table 6, at the time corresponding to ssbi, the base station may transmit ssbi to the terminal through pRRU0, and control pRRU1-3 to perform symbol off processing. Accordingly, at the time corresponding to ssbsi, the base station may transmit ssbsi to the terminal through the pRRU1, and control the pRRU0 and the pRRU2-3 to perform symbol off processing. Accordingly, at a time corresponding to the SSB iii, the base station transmits the SSB iii to the terminal through the pRRU2, and controls the pRRU0-1 and the pRRU3 to perform symbol off processing. Correspondingly, at the time corresponding to the SSBiv, the base station sends the SSBiv to the terminal through the pRRU3, and controls the pRRU0-2 to perform symbol turn-off processing.

S313, the terminal sends the target message to the base station.

Specifically, the terminal sends the target message to the base station according to the reported parameter configuration.

Wherein the target message comprises RSRP.

Alternatively, when the downlink message is a CSI-RS, the target message may be Channel State Information (CSI).

When the target message is CSI, the terminal configures the following parameters in a high-layer CSI-report config IE: configuring a period transmission CSI through a reportConfigType parameter, configuring a CSI reporting period and an offset through a reportSlotConfig parameter, and configuring a reportQuantity parameter to cri-RSRP; configuring the parameter repetition in the high-level NZP-CSI-RS-resource set IE as on; the parameter CSI-ResourceProeriodicityAndOffse in the higher layer NZP-CSI-RS-Resource IE configures the CSI transmission period and offset. Sending CSI information containing RSRP measurement data corresponding to an SNF to a base station at a time corresponding to different initial System Frame Numbers (SFNs) in turn according to a CSI reporting period, where a specific method for a base station to obtain RSRP in CSI sent by a terminal may refer to description of CSI in the prior art, and details of the method are not repeated herein.

S314, the base station determines a target SSB corresponding to the target message based on the target message.

Specifically, after the base station receives measurement data of the SS-RSRP in the target message sent by the terminal, in order to determine a target SSB mapped by a target pRRU group in which the pRRU to which the terminal belongs, the base station determines an SSB corresponding to the SS-RSRP that meets a preset condition as the target SSB.

For example, the measurement data of the SS-RSRP received by the predetermined base station and periodically transmitted by the terminal is shown in table 7.

TABLE 7

SSB received by terminal	SS-RSRP(dBm)
		ⅰ	-98
ⅱ	-101
		ⅲ	-85

With reference to table 7, when the preset condition is that the terminal measures the largest SS-RSRP among SS-RSRPs of the SSB, the base station determines that the SSB iii is the target SSB because the SS-RSRP of the SSB iii is the largest.

Specifically, after the base station acquires the target SSB, reading a mapping relationship between the SSB and the pRRU subgroup created in advance, and determining the target pRRU subgroup corresponding to the target SSB. When the number of pRRUs in the target pRRU subset is equal to 1, the base station determines the pRRU in the target pRRU subset as a target pRRU. Accordingly, when the number of prrus in the target pRRU subgroup is greater than 1, the base station sequentially performs a grouping operation, a creating operation, a first operation, and a second operation on the target pRRU subgroup.

Optionally, with reference to fig. 3, as shown in fig. 4, when the second operation is to transmit a downlink message for acquiring RSRP to the terminal and create a one-to-one mapping relationship between an SFN and a pRRU subgroup when transmitting CSI-RS, S312 to S314 may be replaced with S401 to S404.

S401, when the number of pRRUs in the target pRRU group is more than 1, the base station sequentially performs a grouping operation, a creating operation, a first operation and a second operation on the target pRRU group.

Wherein the second operation is: and sending a downlink message for acquiring RSRP to the terminal, and creating a one-to-one mapping relation between the SFN and the pRRU subgroups when the CSI-RS is sent.

Alternatively, the RSRP may be a channel state information-reference signal received power (CSI-RSRP). Optionally, the downlink message may be a channel state information reference signal CSI-RS.

And when the downlink message is CSI-RS, the base station sends CSI to the terminal through the first pRRU subgroup at the time corresponding to the first SFN according to the CSI period, and controls other pRRU subgroups except the first pRRU subgroup to perform symbol turn-off processing.

The SFN created by the base station corresponding to the pRRU subgroup is:

SFNn＝SFN0+n×T_CSI-RS。

where n is the sequence number of the corresponding pRRU subgroup, SFN0 is the frame number of the first SFN, and T is_CSI-RSThe number of frames corresponding to the CSI-RS period.

Illustratively, the preset base station determines 4 prrus within the target pRRU group, pRRU0, pRRU1, pRRU2, and pRRU3, respectively. The cycle frame number configured in the CSI-RS sent by the base station to the terminal is preset to be T, and the first SFN is SFN 0. In the grouping operation, the base station divides 4 prrus in the target pRRU group into 4 pRRU subgroups, which are: pRRU subgroup I, pRRU subgroup II, pRRU subgroup III and pRRU subgroup IV. The base station then creates a one-to-one mapping of SFN to pRRU subgroup as shown in table 8.

TABLE 8

pRRU subgroup	SFN
		Ⅰ[0]	SFN0＝SFN0
Ⅱ[1]	SFN1＝SFN0+T
		Ⅲ[2]	SFN2＝SFN0+2T
Ⅳ[3]	SFN3＝SFN0+3T

With reference to table 8, at the time corresponding to SFN0, the base station turns on pRRU0 and controls pRRU1-3 to perform symbol turn-off processing. Correspondingly, at the time corresponding to the SFN1, the base station turns on the pRRU1 and controls the pRRU0 and the pRRU2-3 to perform symbol turn-off processing. Correspondingly, at the time corresponding to the SFN2, the base station turns on the pRRU2 and controls pRRU0-1 and pRRU3 to perform symbol turn-off processing. Correspondingly, at the time corresponding to the SFN3, the base station turns on the pRRU3 and controls the pRRU0-2 to perform symbol turn-off processing.

Optionally, the base station may further store creation information, where the creation information includes a one-to-one mapping relationship between the SFN and the pRRU subgroup.

S402, the terminal sends the target message to the base station.

Wherein the target message comprises RSRP.

S403, the base station determines a target SFN corresponding to the target message based on the target message.

Specifically, after the base station receives measurement data of the CSI-RSRP in the target message sent by the terminal, in order to determine a target SFN corresponding to a target pRRU group in which the pRRU to which the terminal belongs, the base station determines the SFN corresponding to the CSI-RSRP that meets a preset condition as the target SFN.

Optionally, the preset condition may be the CSI-RSRP with the largest value among the CSI-RSRPs measured by the terminal, or may be the CSI-RSRP with the value within a preset range among the CSI-RSRPs measured by the terminal.

For example, the measurement data of the CSI-RSRP received by the predetermined base station from the terminal periodically sending CSI is shown in table 9.

TABLE 9

SFN	CSI-RSRP(dBm)
		SFN0	-98
SFN1	-101
		SFN2	-85

With reference to table 9, when the preset condition is that the CSI-RSRP measured by the terminal has the largest value, the base station determines SFN2 as the target SFN because the CSI-RSRP of SFN2 is the largest.

S404, the base station determines a target pRRU subgroup corresponding to the target SFN based on the target SFN.

Specifically, after the target SFN is determined, the base station may read a pre-created one-to-one mapping relationship between the SFN and the pRRU sub-group, and determine the target pRRU sub-group corresponding to the target SFN.

Illustratively, the preset base station determines SFN2 as the target SFN. With reference to table 7, the base station reads the mapping relationship between the SFN and the pRRU subset obtained by the creation operation, and determines the pRRU subset iii corresponding to the target SFN as the target pRRU subset.

Specifically, after the base station acquires the target pRRU subset, the base station determines the pRRU in the target pRRU subset as the target pRRU when the number of prrus in the target pRRU subset is equal to 1. Accordingly, when the number of prrus in the target pRRU subgroup is greater than 1, the base station sequentially performs a grouping operation, a creating operation, a first operation, and a second operation on the target pRRU subgroup.

In summary, in the mutual interaction process between the base station and the terminal, the apparatus for identifying a pRRU in the embodiment of the present application enables the base station to determine the pRRU group corresponding to the target SSB according to the pre-created mapping relationship between the SSB and the pRRU group after receiving the target message corresponding to the target SSB, and further determine the target pRRU to which the terminal belongs from the target pRRU group. Compared with the prior art, the base station can determine the pRRU to which each terminal belongs based on the technical scheme provided by the embodiment of the application, and an operator can provide differentiated services for different terminals by using the coverage area of each pRRU, so that more new functions and new applications of the pRRU under the indoor subsystem are supported.

In addition, the base station can identify the position of the pRRU to which the terminal belongs, and an operator can directly utilize the coverage area of each pRRU to provide differentiated services for different terminals, so that indoor subsystems do not need to be deployed in different application environments respectively, and the problem of high energy consumption caused by large-scale deployment of the indoor subsystems is solved.

The scheme provided by the embodiment of the application is mainly introduced from the perspective of a method. To implement the above functions, it includes hardware structures and/or software modules for performing the respective functions. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the terminal may be divided into the functional modules according to the method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. Optionally, the division of the modules in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

Fig. 5 is a schematic structural diagram of an apparatus for identifying a pRRU according to an embodiment of the present disclosure. The apparatus for identifying a pRRU may be used to perform the method for identifying a pRRU shown in fig. 3 or 4. The apparatus for identifying pRRU shown in fig. 5 includes: a receiving unit 501 and a determining unit 502;

a receiving unit 501, configured to receive a target message sent from a terminal.

A determining unit 502, configured to determine a target SSB corresponding to the target message. For example, in conjunction with fig. 3 and 4, the determination unit 502 is configured to perform S309 and S314.

The determining unit 502 is further configured to read a mapping relationship between the SSB and the pRRU set, which is created in advance, and determine a target pRRU set corresponding to the target SSB. For example, in conjunction with fig. 3 and 4, the determining unit 502 is further configured to perform S310.

The determining unit 502 is further configured to determine a target pRRU to which the terminal belongs from the target pRRU group. For example, in conjunction with fig. 3 and 4, the determination unit 502 is further configured to perform S311, S314, and S403-S404.

Optionally, the apparatus for identifying a pRRU further includes: a processing unit 503;

a processing unit 503, configured to perform a grouping operation on the prrus in the target area to obtain at least one pRRU group; the grouping operation includes: creating at least one pRRU group according to a first preset condition; the first preset condition includes: the number of at least one pRRU group is equal to the number of pRRUs if the number of pRRUs is less than or equal to the number of SSBs in an SSB beam transmitted to the terminal; if the number of pRRUs is greater than the number of SSBs, then the number of at least one pRRU group is equal to the number of SSBs. For example, in conjunction with fig. 3 and 4, the processing unit 503 is configured to execute S302.

The processing unit 503 is further configured to perform a create operation on the at least one pRRU group to obtain a mapping relationship between the at least one pRRU group and the SSB; the creating operation includes: when the number of the at least one pRRU group is smaller than the number of the SSBs, selecting the at least one SSB with the same number as the at least one pRRU group from the SSB beam, and creating a one-to-one mapping relation between the at least one SSB and the at least one pRRU group; when the number of the at least one pRRU group is equal to the number of SSBs, a one-to-one mapping of SSBs to the at least one pRRU group is created. For example, in conjunction with fig. 3 and 4, the processing unit 503 is also configured to execute S303.

Optionally, the apparatus for identifying a pRRU further includes: a transmitting unit 504;

a transmitting unit 504 for each pRRU group of the at least one pRRU group; the first operation includes: and at the time corresponding to the first SSB, transmitting the first SSB to the terminal through a first pRRU group corresponding to the first SSB, and controlling other pRRU groups except the first pRRU group to perform symbol turn-off processing. For example, in conjunction with fig. 3 and 4, the sending unit 504 is configured to perform S304, S312, and S401.

Optionally, the determining unit 502 is specifically configured to:

when the number of pRRUs in the target pRRU group is greater than 1, sequentially performing a grouping operation, a creating operation, a first operation, and a second operation on the target pRRU group until the base station determines an SSB corresponding to the target pRRU; the second operation includes: and sending a downlink message for requesting to acquire the first-layer Reference Signal Received Power (RSRP) to the terminal. For example, in conjunction with fig. 3 and 4, the determination unit 502 is specifically configured to perform S312 and S401.

Optionally, the determining unit 502 is specifically configured to:

when the number of pRRUs in the target pRRU group is equal to 1, determining the pRRUs in the target pRRU group as target pRRUs. For example, in conjunction with fig. 3 and 4, the determining unit 502 is further configured to execute S311.

Embodiments of the present application also provide a computer-readable storage medium, which includes computer-executable instructions, and when the computer-executable instructions are executed on a computer, the computer is enabled to execute the method for identifying a pRRU provided in the foregoing embodiments.

The embodiment of the present application further provides a computer program, where the computer program may be directly loaded into the memory and contains software codes, and the computer program is loaded into the memory and executed by the computer, so as to implement the method for identifying a pRRU according to the embodiment.

Those skilled in the art will recognize that, in one or more of the examples described above, the functions described in this invention may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer-readable storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical function division, and there may be other division ways in actual implementation. For example, various elements or components may be combined or may be integrated into another device, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. Units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, may be located in one place, or may be distributed to a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially or partially contributed to by the prior art, or all or part of the technical solutions may be embodied in the form of a software product, where the software product is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A method of identifying a pRRU, comprising:

receiving a target message sent by a terminal;

determining a target SSB corresponding to the target message;

reading a mapping relation between the SSB and the pRRU set of the remote radio unit created in advance, and determining a target pRRU set corresponding to the target SSB;

and determining a target pRRU to which the terminal belongs from the target pRRU group.

2. The method of claim 1, further comprising:

performing a grouping operation on the pRRUs within the target area to obtain at least one pRRU group; the grouping operation includes: creating the at least one pRRU group according to a first preset condition; the first preset condition includes: the number of the at least one pRRU group is equal to the number of pRRUs if the number of pRRUs is less than or equal to the number of SSBs in an SSB beam transmitted to the terminal; if the number of pRRUs is greater than the number of SSBs, then the number of at least one pRRU group is equal to the number of SSBs;

performing a create operation on the at least one pRRU group to obtain a mapping relationship of the at least one pRRU group to the SSB; the creating operation includes: when the number of the at least one pRRU group is smaller than that of the SSBs, selecting at least one SSB with the same number as the at least one pRRU group from the SSB beam, and creating a one-to-one mapping relation between the at least one SSB and the at least one pRRU group; creating a one-to-one mapping of the SSBs to the at least one pRRU group when the number of the at least one pRRU group is equal to the number of SSBs.

3. The method of claim 2, wherein the target area is a cell to which the terminal belongs, or a coverage area corresponding to one pRRU group.

4. The method of claim 3, wherein before receiving the target message from the terminal, the method further comprises:

performing a first operation on each of the at least one pRRU groups; the first operation includes: and at the moment corresponding to the first SSB, transmitting the first SSB to the terminal through a first pRRU group corresponding to the first SSB, and controlling other pRRU groups except the first pRRU group to perform symbol cut-off processing.

5. The method according to claim 4, wherein the determining the target pRRU to which the terminal belongs from the target pRRU group specifically comprises:

when the number of pRRUs in the target pRRU group is greater than 1, sequentially performing the grouping operation, the creating operation, the first operation, and the second operation on the target pRRU group until an SSB corresponding to the target pRRU is determined; the second operation is to instruct the terminal to send the target message.

6. The method according to claim 4, wherein the determining the target pRRU to which the terminal belongs from the target pRRU group specifically comprises:

determining the pRRUs in the target pRRU group as the target pRRUs when the number of pRRUs in the target pRRU group is equal to 1.

7. The method of claim 1,

when communication connection is established with the terminal for the first time, the target message is a first message Msg1 sent at a time domain sending position of an uplink Physical Random Access Channel (PRACH);

and after the communication connection is established with the terminal, the target message comprises the RSRP.

8. An apparatus for identifying a pRRU, comprising: a receiving unit and a determining unit;

the receiving unit is used for receiving a target message sent by a terminal;

the determining unit is configured to determine a target SSB corresponding to the target message received by the receiving unit;

the determining unit is further configured to read a mapping relationship between the SSB and the pRRU set, which is created in advance, and determine a target pRRU set corresponding to the target SSB;

the determining unit is further configured to determine a target pRRU to which the terminal belongs from the target pRRU group.

9. The apparatus of claim 8, further comprising: a processing unit;

the processing unit is used for performing grouping operation on the pRRUs in the target area to obtain at least one pRRU group; the grouping operation includes: creating the at least one pRRU group according to a first preset condition; the first preset condition includes: the number of the at least one pRRU group is equal to the number of pRRUs if the number of pRRUs is less than or equal to the number of SSBs in an SSB beam transmitted to the terminal; if the number of pRRUs is greater than the number of SSBs, then the number of at least one pRRU group is equal to the number of SSBs;

the processing unit is configured to perform a create operation on the at least one pRRU group to obtain a mapping relationship between the at least one pRRU group and the SSB; the creating operation includes: when the number of the at least one pRRU group is smaller than that of the SSBs, selecting at least one SSB with the same number as the at least one pRRU group from the SSB beam, and creating a one-to-one mapping relation between the at least one SSB and the at least one pRRU group; creating a one-to-one mapping of the SSBs to the at least one pRRU group when the number of the at least one pRRU group is equal to the number of SSBs.

10. The apparatus of claim 9, wherein the target area is a cell to which the terminal belongs, or a coverage area corresponding to one pRRU group.

11. The apparatus of claim 10, further comprising: a transmitting unit;

the sending unit is used for executing a first operation on each pRRU group in the at least one pRRU group divided by the processing unit; the first operation includes: and at the moment corresponding to the first SSB, transmitting the first SSB to the terminal through a first pRRU group corresponding to the first SSB, and controlling other pRRU groups except the first pRRU group to perform symbol cut-off processing.

12. The apparatus according to claim 11, wherein the determining unit is specifically configured to:

13. The apparatus according to claim 11, wherein the determining unit is specifically configured to:

14. The apparatus of claim 8,

when communication connection is established with the terminal for the first time, the target message is Msg1 sent at the time domain sending position of the uplink PRACH;

15. An apparatus to identify a pRRU, comprising a memory and a processor; the memory is used for storing computer execution instructions, and the processor is connected with the memory through a bus;

when the apparatus to identify a pRRU is run, the processor executes the computer-executable instructions stored by the memory to cause the apparatus to perform the method to identify a pRRU as recited in any of claims 1-7.

16. A computer-readable storage medium comprising computer-executable instructions that, when executed on a computer, cause the computer to perform the method of identifying a pRRU of claims 1-7.