CN116094670A

CN116094670A - Signal processing method and device

Info

Publication number: CN116094670A
Application number: CN202111305304.5A
Authority: CN
Inventors: 郭保娟; 白艳梅; 吴央
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2023-05-09

Abstract

The application provides a signal processing method and device, which solve the problem that the conventional RHIB multi-point PICO remote merging mode can cause bottom noise lifting. The method of the embodiment of the application comprises the following steps: acquiring Sounding Reference Signals (SRS) received through a plurality of physical PICO, wherein each SRS corresponds to one terminal; determining the physical PICO to which each terminal corresponding to the SRS belongs; and sending an uplink signal of the terminal to a baseband processing unit BBU according to the physical PICO to which the terminal belongs. According to the physical PICO to which the terminal belongs, RHIB combination can be only carried out on all uplink signals of the terminal on the corresponding physical PICO, and noise improvement caused by direct combination of all physical PICO can be avoided.

Description

Signal processing method and device

Technical Field

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

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 the BBU, thereby expanding the coverage area of the cell. The adoption of cell combination can bring the following benefits: the method reduces switching, reduces call drop rate, reduces adjacent cell relation, and can allow different physical cells in one logic cell, selectively adjusts network structure, and flexibly expands and covers network.

The 5G distributed indoor scene adopts a multi-PICO base station (PicoE Node) mode based on radio remote Hub (RUB) combination, so that the cost of the RRU is reduced while the cell combination gain is obtained, and the product cost is reduced by adopting a multi-point PICO remote combination mode under the RUB. In this scenario, because the PICO of the multiple points is the combination of direct addition of the time domain or frequency domain signals, the combination can bring about the lifting of the bottom noise.

Disclosure of Invention

The purpose of the application is to provide a signal processing method and device, so as to solve the problem that the conventional RHIB multi-point PICO remote merging mode can cause bottom noise lifting.

In order to achieve the above object, the present application provides a signal processing method, which is executed by a remote radio hub RHUB, where the RHUB corresponds to one logical PICO base station PICO, and the logical PICO corresponds to a plurality of physical PICOs, and the method includes:

acquiring Sounding Reference Signals (SRS) received through the plurality of physical PICO, wherein each SRS corresponds to one terminal;

determining the physical PICO to which each terminal corresponding to the SRS belongs;

and sending the uplink signal of the terminal to a baseband processing unit BBU according to the physical PICO to which the terminal belongs.

Optionally, the determining the physical PICO to which the terminal corresponding to each SRS belongs includes:

and sending the SRS received by the plurality of physical PICO to a baseband processing unit BBU according to a preset polling strategy, wherein the preset polling strategy comprises: in each SRS period of a polling period, sending SRS on one physical PICO corresponding to the logic PICO to the BBU, wherein the polling period comprises M SRS periods, and M is the number of the physical PICO corresponding to the logic PICO;

and acquiring first indication information sent by the BBU, wherein the first indication information is used for indicating the physical PICO to which each terminal corresponding to the SRS belongs.

Optionally, the sending the SRS transmitted by the plurality of physical PICOs to the baseband processing unit BBU according to a preset polling policy includes:

transmitting an SRS on a physical PICO with the number of P (n, x) to a BBU in an ith SRS period, wherein i is a positive integer;

where x=mod (i, M), i=ceil (Tframe/Tsrs), where Tframe represents a radio frame index, tsrs represents an SRS period, and n represents a number of the logical PICO corresponding to the physical PICO.

Measuring SRS received by each physical PICO in the plurality of physical PICO, and determining a signal quality value corresponding to the SRS received by each physical PICO in the plurality of physical PICO;

and if the signal quality value corresponding to the SRS received by the first physical PICO in the plurality of physical PICO is larger than a first preset threshold, determining that the terminal corresponding to the SRS belongs to the first physical PICO.

Optionally, the sending, according to the physical PICO to which the terminal belongs, the uplink signal of the terminal to the baseband processing unit BBU includes:

determining a resource allocation table corresponding to each physical PICO in the plurality of physical PICO according to the physical PICO to which the target terminal receiving and transmitting data in each time slot belongs;

according to the resource allocation table corresponding to each physical PICO, signals on the physical PICO to which the target terminal belongs are combined and sent to the BBU, and the signals on the physical PICO to which the target terminal belongs comprise uplink signals of the target terminal;

and in the configuration resources corresponding to the resource configuration table, the resources occupied by the target terminal correspond to the first identifier, and the resources not occupied by the target terminal correspond to the second identifier.

Optionally, the determining, according to the physical PICO to which the target terminal performing data transceiving in each time slot belongs, a resource allocation table corresponding to each physical PICO in the plurality of physical PICOs includes:

Transmitting the physical PICO to which the target terminal receiving and transmitting data in each time slot belongs to the BBU;

and acquiring the resource configuration table sent by the BBU according to the physical PICO to which the target terminal belongs.

Optionally, the method of the embodiment of the present application further includes:

and updating the resource configuration table at each scheduling time unit.

Optionally, the step of merging and sending the signals on the physical PICO to which the target terminal belongs to the BBU according to the resource configuration table corresponding to each physical PICO includes:

determining a target configuration resource corresponding to a first identifier in a target resource configuration table according to a resource configuration table corresponding to each physical PICO, wherein the target resource configuration table is a resource configuration table corresponding to the physical PICO to which the target terminal belongs;

and merging and sending the signals on the target configuration resource to the BBU.

The embodiment of the application also provides a signal processing method, which is executed by a baseband processing unit BBU, wherein the BBU is connected with an RHUB, the RHUB corresponds to at least one logic PICO, each logic PICO in the at least one logic PICO corresponds to a plurality of physical PICOs, and the method comprises:

receiving a sounding reference signal SRS sent by RHIB;

And determining the physical PICO to which the terminal corresponding to each SRS belongs according to the SRS.

and sending first indication information to the RHIB, wherein the first indication information is used for indicating the physical PICO to which each terminal corresponding to the SRS belongs.

Optionally, before determining, according to the SRS, a physical PICO to which each terminal corresponding to the SRS belongs, the method further includes:

and acquiring SRS sent by the RHIB according to a preset polling strategy, wherein the preset polling strategy comprises the following steps: and in each SRS period of the polling period, sending SRS on one physical PICO corresponding to the logic PICO to the BBU, wherein the polling period comprises M SRS periods, and M is the number of the physical PICO corresponding to the logic PICO.

Optionally, the determining, according to the SRS, a physical PICO to which the terminal corresponding to each SRS belongs, includes:

measuring the SRS transmitted by each logic PICO, and determining a signal quality value corresponding to the SRS transmitted by each logic PICO;

if the signal quality value corresponding to the SRS transmitted by the first logic PICO in the at least one logic PICO is larger than a second preset threshold value, determining that the terminal corresponding to the SRS belongs to the first logic PICO;

Determining a target physical PICO corresponding to the first SRS period according to the preset polling strategy;

and determining that the terminal corresponding to the SRS belongs to the target physical PICO of the first logic PICO.

Optionally, in the ith SRS period, the number corresponding to the target physical PICO is P (n, x);

where x=mod (i, M)), i=ceil (Tframe/Tsrs), where Tframe represents a current radio frame index, tsrs represents an SRS period, n represents a number of a logical PICO corresponding to the target physical PICO, and i is a positive integer.

Optionally, after determining the physical PICO to which the terminal corresponding to each SRS belongs, the method further includes:

Optionally, after determining the resource configuration table corresponding to each physical PICO, the method further includes:

and sending the resource configuration table corresponding to each physical PICO to the RHIB.

The embodiment of the application also provides a signal processing device which is applied to the remote radio hub RHIB, wherein the RHIB corresponds to one logic PICO base station PICO, the logic PICO corresponds to a plurality of physical PICO, and the device comprises 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:

acquiring Sounding Reference Signals (SRS) received through the plurality of physical PICO through a transceiver, wherein each SRS corresponds to one terminal; determining the physical PICO to which each terminal corresponding to the SRS belongs; and sending an uplink signal of the terminal to a baseband processing unit BBU through a transceiver according to the physical PICO to which the terminal belongs.

Optionally, the step of determining the physical PICO to which the terminal corresponding to each SRS belongs includes:

and sending the SRS received by the plurality of physical PICO to a baseband processing unit BBU through a transceiver according to a preset polling strategy, wherein the preset polling strategy comprises: in each SRS period of a polling period, sending SRS on one physical PICO corresponding to the logic PICO to the BBU, wherein the polling period comprises M SRS periods, and M is the number of the physical PICO corresponding to the logic PICO;

And acquiring first indication information sent by the BBU through a transceiver, wherein the first indication information is used for indicating the physical PICO to which each terminal corresponding to the SRS belongs.

Optionally, the sending, by the transceiver, the SRS transmitted by the plurality of physical PICOs to the baseband processing unit BBU according to a preset polling policy includes:

Optionally, the step of sending, by the transceiver, the uplink signal of the terminal to the baseband processing unit BBU according to the physical PICO to which the terminal belongs includes:

Optionally, the step of determining the resource allocation table corresponding to each physical PICO in the plurality of physical PICOs according to the physical PICO to which the target terminal performing data transceiving in each time slot belongs includes:

transmitting a physical PICO to which a target terminal carrying out data transceiving in each time slot belongs to the BBU through the transceiver;

and acquiring the resource allocation table sent by the BBU according to the physical PICO to which the target terminal belongs through a transceiver.

Optionally, the processor is further configured to:

and updating the resource configuration table at each scheduling time unit.

Optionally, the step of combining and sending, by the transceiver, signals on the physical PICO to which the target terminal belongs to the BBU according to the resource configuration table corresponding to each physical PICO includes:

and combining and transmitting the signals on the target configuration resource to the BBU through a transceiver.

The embodiment of the application also provides a signal processing device, which is applied to a baseband processing unit BBU, wherein the BBU is connected with RHIB, the RHIB corresponds to at least one logic PICO, each logic PICO in the at least one logic PICO corresponds to a plurality of physical PICO, and the device comprises a memory, a transceiver and a processor;

receiving a sounding reference signal SRS sent by RHIB;

Optionally, the processor is further configured to:

and sending first indication information to the RHIB through a transceiver, wherein the first indication information is used for indicating the physical PICO to which each terminal corresponding to the SRS belongs.

Optionally, before determining the physical PICO to which the terminal corresponding to each SRS belongs according to the SRS, the processor further includes:

Optionally, the step of determining, according to the SRS, a physical PICO to which the terminal corresponding to each SRS belongs includes:

Optionally, after the step of determining the physical PICO to which the terminal corresponding to each SRS belongs, the processor is further configured to perform the following steps:

Optionally, after the step of determining the resource configuration table corresponding to each physical PICO, the processor is further configured to perform the following steps:

And transmitting the resource configuration table corresponding to each physical PICO to the RHIB through a transceiver.

The embodiment of the application also provides a signal processing device, which is applied to the execution of the remote radio hub RHUB, wherein the RHUB corresponds to a logic PICO base station PICO, and the logic PICO corresponds to a plurality of physical PICOs, and the device comprises:

a first acquiring unit, configured to acquire sounding reference signals SRS received through the plurality of physical PICOs, where each SRS corresponds to one terminal;

a first determining unit, configured to determine a physical PICO to which a terminal corresponding to each SRS belongs;

and the first transmission unit is used for sending the uplink signal of the terminal to the baseband processing unit BBU according to the physical PICO to which the terminal belongs.

The embodiment of the application also provides a signal processing device, which is applied to a baseband processing unit BBU, wherein the BBU is connected with an RHUB, the RHUB corresponds to at least one logic PICO, each logic PICO in the at least one logic PICO corresponds to a plurality of physical PICOs, and the device comprises:

a first receiving unit, configured to receive a sounding reference signal SRS sent by the RHUB;

and the second determining unit is used for determining the physical PICO to which the terminal corresponding to each SRS belongs according to the SRS.

Embodiments of the present application also provide a processor-readable storage medium storing program instructions for causing the processor to perform the steps of the signal processing method as described above.

The technical scheme of the application has at least the following beneficial effects:

in the above scheme of the embodiment of the present application, a sounding reference signal SRS transmitted through a plurality of physical PICOs is obtained, where each SRS corresponds to one terminal; and determining the physical PICO to which each SRS corresponds to the terminal, so that all uplink signals of the terminal can be combined only on the corresponding physical PICO according to the physical PICO to which the terminal belongs, and noise improvement caused by direct combination of all physical PICO can be avoided.

Drawings

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable;

FIG. 2 is a schematic flow chart of a signal processing method according to an embodiment of the present application;

FIG. 3 is a schematic diagram showing the relationship between BBU and RHIB in the examples of the present application;

FIG. 4 is a schematic diagram showing a resource allocation table according to an embodiment of the present application;

FIG. 5 shows a second flow chart of a signal processing method according to an embodiment of the present application;

Fig. 6 shows a block diagram of the signal processing apparatus of the embodiment of the present application;

fig. 7 shows one of block diagrams of a signal processing apparatus according to an embodiment of the present application;

fig. 8 shows a second block diagram of a signal processing device according to an embodiment of the present application.

Detailed Description

The technical scheme provided by the embodiment of the application can be suitable for various systems, in particular to a 5G system. For example, applicable 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), time division synchronous CDMA (Time Division Synchronous Code Division Multiple Access, TD-SCDMA), general packet Radio service (general packet Radio service, GPRS), long term evolution (Long Term Evolution, LTE) including TD-LTE and FDD LTE, 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), new air interface (New Radio, NR) systems, and the like. Terminal devices and network devices are included in these various systems. Core network parts may also be included in the system, such as evolved packet system (Evolved Packet System, EPS), 5G system (5 GS/5 GC), etc.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may also be called a terminal Device or a User Equipment (UE), and the terminal 11 may be a terminal-side Device such as a mobile phone, a tablet Computer (Tablet Personal Computer), a Laptop (Laptop Computer) or a notebook (Personal Digital Assistant, PDA), a palm Computer, a netbook, an Ultra-mobile personal Computer (Ultra-Mobile Personal Computer, UMPC), a mobile internet Device (Mobile Internet Device, MID), a Wearable Device (or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and the Wearable Device includes: a bracelet, earphone, glasses, etc. Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network device 12 may be a base station or a core network, wherein the base station may be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the art, and the base station is not limited to a specific technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

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.

As shown in fig. 2, an embodiment of the present application provides a signal processing method, which is executed by a remote radio hub RHUB, where the RHUB corresponds to one logical PICO base station PICO, and the logical PICO corresponds to a plurality of physical PICOs, and the method includes:

step 201: and acquiring Sounding Reference Signals (SRS) received through a plurality of physical PICO, wherein each SRS corresponds to one terminal.

In the embodiment of the application, RHIB obtains time domain data on a plurality of input physical PICO and then performs fast Fourier transform (Fast Fourier Transform, FFT) to obtain frequency domain data; alternatively, RHUB directly obtains frequency domain data on multiple physical PICOs.

As shown in fig. 3, the time-frequency domain data of the plurality of PICOs are transmitted to the RHUB, the RHUB performs digital signal combination on the time-frequency domain digital signals of the channels corresponding to the plurality of PICOs, and then the signals are transmitted to the BBU side for processing, and the RHUB may exist in multi-stage serial connection. The PICO of RHIB merge input is defined as physical PICO, and the output after RHIB merge is named as logical PICO. Let the name P (N) of the logical PICO, where N is the index and n= … … N, N is the number of logical PICOs. M physical PICO input by the logic PICO, each physical PICO is named as P (n, M), the value range of M is 1 … … M, and M is the number of physical PICO input by each logic PICO.

For example, as shown in fig. 3, if the above method is performed by RHUB1, then RHUB1 may acquire SRS transmitted by physical PICOs numbered P (1, m), P (2, m), P (3, m), and P (4, m).

Step 202: and determining the physical PICO to which the terminal corresponding to each SRS belongs.

In the application, the RHUB performs SRS transmission in the physical PICO corresponding to each logical PICO, and does not directly perform RHUB combining, and determines, according to the transmitted SRS, the physical PICO to which the terminal corresponding to each SRS belongs, for example, according to the received power of the SRS, determines the physical PICO to which the terminal corresponding to each SRS belongs, so as to facilitate subsequent signal transmission to the BBU based thereon.

Step 203: and sending the uplink signal of the terminal to the BBU according to the physical PICO to which the terminal belongs.

In the application, according to the physical PICO to which the terminal belongs, all uplink signals of the terminal are combined only on the corresponding physical PICO and sent to the BBU, so that noise promotion caused by direct combination of all the PICOs can be avoided.

For example, assuming that the physical PICO to which UE1 belongs is denoted by P (1, 1), if only UE1 transmits an uplink signal, at this time, if RHUB combining is directly performed to combine signals transmitted by P (1, 1) to P (1, m), a noise rise will be brought.

According to the signal processing method, sounding Reference Signals (SRS) transmitted through a plurality of physical PICO are obtained, wherein each SRS corresponds to one terminal; and determining the physical PICO to which each SRS corresponds to the terminal, so that all uplink signals of the terminal can be combined only on the corresponding physical PICO according to the physical PICO to which the terminal belongs, and noise improvement caused by direct combination of all physical PICO can be avoided.

As a first alternative implementation manner, determining the physical PICO to which the terminal corresponding to each SRS belongs includes:

In the implementation mode, the BBU informs RHIB of the time-frequency positions and the periods of SRSs of all users, the SRSs of the same period can uniformly provide one time-frequency position, if the SRS periods of all users are consistent, only one group of time-frequency configuration information is provided, and meanwhile, the signals of the time-frequency resources with the same SRS period are uniformly polled; if the SRS periods are inconsistent, the SRS of the users with the same period are treated as a group, the groups are independent, and the treatment principle is the same.

Optionally, in this implementation manner, sending the SRS transmitted by the plurality of physical PICOs to the baseband processing unit BBU according to a preset polling policy includes:

in the ith SRS period, transmitting the SRS on the physical PICO with the number of P (n, x) to the BBU, wherein i is a positive integer;

where x=mod (i, M), i=ceil (Tframe/Tsrs), tframe indicates a current radio frame index, tsrs indicates an SRS period, and n indicates a number of the logical PICO corresponding to the physical PICO. Tframe and Tsrs unit are the same, can be the units such as slot number, ms, radio frame number, etc..

In a specific embodiment of the present application, if the SRS exists in the current slot, time-frequency location data where the SRS exists is extracted and transmitted to the BBU in a polling manner. The specific polling strategy is as follows:

the SRS of all users of the ith SRS period transmits only signals on the physical PICO number P (n, mod (i, M)) to the BBU; namely:

the SRS of all users in the 1 st SRS period only transmits signals on the physical PICO number P (n, 1) to the BBU;

the SRS of all users in the 2 nd SRS period only transmits signals on the physical PICO number P (n, 2) to the BBU;

……；

SRS of all users in the Mth SRS period only transmits signals on a physical PICO number P (n, M) to the BBU;

SRS of all users in the M+1th SRS period only transmits signals on the physical PICO number P (n, 1) to the BBU;

……。

the specific polling procedure may be performed by calculating the value of x in the current time P (n, x), and then the SRS at the current time is transmitted to the BBU on P (n, x).

For example, at the first time, RHUB1 performs combining processing on signals transmitted by P (1, 1), P (2, 1), P (3, 1) and P (4, 1) in fig. 3, at the second time, RHUB1 performs combining processing on signals transmitted by P (1, 2), P (2, 2), P (3, 2) and P (4, 2), at the third time, RHUB1 performs combining processing on signals transmitted by P (1, 3), P (2, 3), P (3, 3) and P (4, 3), and so on, and at the eighth time, RHUB1 performs combining processing on signals transmitted by P (1, 8), P (2, 3), P (3, 8) and P (4, 8).

Then, the BBU analyzes the SRS, and determines to which logical PICO the SRS corresponding to the terminal belongs, thereby determining the corresponding physical PICO. Specifically, after the BBU receives the SRS signal transmitted by the logical PICO number P (N) (n= … … N), the BBU can determine the physical PICO of the UE by determining which group of logical PICOs the SRS of the UE belongs to. The method of parsing may be to measure the SRS received reference signal received power (Reference Signal Received Power, RSRP) or SNR of each user after SRS channel estimation, and then compare with a given threshold, and if the threshold is exceeded, consider the user to belong to the physical PICO of this poll under the logical PICO.

It should be noted that, in the embodiment of the present application, each logic PICO only receives SRS information of one physical PICO at a time, so that the logic PICO and the physical PICO are in one-to-one correspondence at a time, so that the physical PICO attribution of the end user can be distinguished.

The BBU determines the physical PICO information to which the terminal belongs and then transmits the physical PICO information to the RHIB, the RHIB generates a resource allocation table, and the BBU can also generate the resource allocation table according to the physical PICO to which the terminal belongs and combining with the user scheduling information on each time-frequency resource and send the resource allocation table to the RHIB.

As a second alternative implementation manner, determining the physical PICO to which the terminal corresponding to each SRS belongs includes:

The signal quality may include SNR, RSRP, etc.

In this implementation, the RHUB determines the physical PICO to which the terminal corresponding to each SRS belongs. Specifically, the BBU informs the RHUB of the time-frequency locations and periods of SRS for all users. RHIB extracts SRS frequency domain data on each physical PICO P (n, m), then calculates channel estimation, and obtains SRS receiving power or SNR of each user, wherein the specific channel estimation scheme is the prior art. And judging whether SRS receiving power or SNR of each user exceeds a given threshold, and if so, attributing the user to the corresponding physical PICO.

Optionally, in this implementation manner, after the RHUB determines the physical PICO to which the terminal corresponding to each SRS belongs, a resource allocation table may be generated according to the physical PICO to which the terminal belongs, or the physical PICO to which the terminal corresponding to each SRS belongs may be sent to the BBU, the BBU generates the resource allocation table, and then the BBU transmits the resource allocation table to the RHUB.

Optionally, in this embodiment of the present application, sending, according to a physical PICO to which the terminal belongs, an uplink signal of the terminal to the BBU includes:

The target terminal can receive and transmit data through the PUSCH and/or the PUCCH. Preferably, the first identifier is 1, and the second identifier is 0, however, the first identifier may also be 0, and the second identifier is 1.

In the embodiment of the present application, the RHUB itself may determine, according to the physical PICO to which the terminal belongs, a resource allocation table corresponding to each physical PICO; the physical PICO to which the terminal belongs can also be sent to the BBU by the RHIB; and acquiring the resource configuration table sent by the BBU.

Optionally, determining, according to a physical PICO to which the target terminal performing data transceiving in each time slot belongs, a resource allocation table corresponding to each physical PICO in the plurality of physical PICOs includes:

and updating the resource configuration table at each scheduling time unit.

The schedule time unit may be a time slot.

Optionally, according to the resource allocation table corresponding to each physical PICO, the method includes that signals on the physical PICO to which the target terminal belongs are combined and sent to the BBU, including:

Here, if the method is applied to a scenario of reducing low noise during uplink reception combining, the resource allocation table is used to guide the combining operation between physical PICOs in the RHUB, each physical PICO has a resource allocation table, occupied resources are identified as 1, and unoccupied resources are identified as 0. The table may be updated once per scheduled time unit (e.g., per slot).

In an embodiment of the present application, for a certain uplink time slot, the BBU knows the actual resource configuration of PUSCH/PUCCH of all users, but does not necessarily already know the physical PICO attribution situation of all users. Therefore, the UE in the random access procedure has not configured SRS, and can only determine the RSRP or SNR of the PRACH on each virtual PICO through the parsed physical random access channel (Physical Random Access Channel, PRACH) and compare with a given threshold, determine the virtual PICO index where the PRACH is located, and add all the physical PICO data of the uplink signal of the user under the logical PICO (also may be described as virtual PICO).

When the PRACH is analyzed, because the SRS does not exist at the moment, the attribution of the physical PICO of the user cannot be known, and therefore all the physical PICO are combined and processed to ensure that the PRACH signal is not lost. I.e. the configured time-frequency position of the corresponding PRACH in the resource configuration table, all physical PICOs are set to 1. And when the time-frequency resources are not scheduled, the corresponding time-frequency positions of all the physical PICO are 0.

Specifically, each physical PICO index P (n, m) corresponds to a resource allocation table, the table size is prb×14, and the table value is 0 or 1. Wherein the K-th row and column elements in the table are expressed as T (n, m, K, l), K is the K-th PRB, l is the l-th symbol, 1-14, and 1-K.

Assume that the set of all user compositions at the current time is ψ= { μ _i 1.ltoreq.i.ltoreq.UE_Num, where the user that knows that the physical PICO belongs to is Λ= { μ _i 1.ltoreq.i.ltoreq.UE_pico, UE_pico.ltoreq.UE_Num, (ψ - Λ) is the set of users that are not aware of the physical PICO home.

The method of generating the resource table T (n, m, k, l) of P (n, m) is given below:

(1) Initializing a table T (n, m, k, l) =0;

(2) The frequency domain resource (k, l) occupied by all the user PUSCH/PUCCH under physical P (n, m) is set to T (n, m, k, l) =1;

(3) The frequency domain resource (k, l) occupied by the user set (ψ - Λ) to which the physical PICO belongs is not determined under the logic P (n) is set to T (n, m, k, l) =1.

A simple example is given below for illustration, with 3 users under the BBU, where there are UE1, UE2 under P (n, m).

As shown in fig. 4, the PUSCH PRB occupied location occupied by UE1 is set to 1 in the P (n, m) resource allocation table, the PUCCH PRB occupied location occupied by UE2 is set to 1 in the P (n, m) resource allocation table, UE3 does not occupy P (n, m) resources, the corresponding location is 0, the rest of the time-frequency resource locations are not scheduled, and the corresponding locations are all configured to 0.

In addition, in the embodiment of the present application, if the method is applied to a scenario that the physical PICO is turned off for energy saving during downlink transmission, another resource allocation table may be generated according to the above scheme, where the resource allocation table is used to instruct the operation of the transmission signal between the physical PICOs in the RHUB, each physical PICO has one resource allocation table, the resources occupied by the broadcast signal, CSI-RS, PDSCH and PDCCH are identified as 1, and the resources not occupied by the broadcast signal, CSI-RS, PDSCH and PDCCH are identified as 0. The table is passed by the BBU to the RHUB, updated once per scheduled time unit (e.g., per slot).

In the scenario that the physical PICO is turned off for energy saving during downlink transmission, a target resource corresponding to the first identifier in each resource allocation table can be determined according to the resource allocation table corresponding to each physical PICO, and a signal is transmitted on the target resource.

For a certain downlink timeslot, the BBU knows the PDSCH/PDCCH actual resource configuration of all users, but does not necessarily already know the physical PICO attribution of all users. Therefore, for the UE to which the uncertain physical PICO belongs, all physical PICO data under the logic PICO can be added only through the logic PICO attribution determined in the PRACH stage, and the background noise lifting is avoided to a certain extent.

For the time-frequency resources of common signals such as broadcast, the configuration of the corresponding time-frequency positions of all physical PICO is set to be 1 at the moment of transmitting on all physical PICO. For time-frequency resources that are not scheduled, the corresponding time-frequency location configuration for all physical PICO is set to 0.

In this embodiment of the present application, for uplink reception, RHUB determines a merging manner of the corresponding time-frequency location on each physical PICO according to the resource allocation table, and performs RHUB merging. Assuming that the logical PICO P (n) corresponds to the physical PICO P (n, m), the frequency domain data is denoted as S (rx, n, m, k, l), and the channel-merged data is denoted as S (rx, n, k, l). I.e. for T (n, m, k, l) =1, to get all frequency domain data within one logical pico.

For downlink transmission, RHUB determines a transmission mode of a corresponding time-frequency position on each physical PICO according to the resource allocation table, and performs signal transmission. Assuming that the physical PICO P (n, m) corresponding to the logical PICO P (n), the frequency domain data is multiplied by the resource allocation table of each physical PICO to obtain a transmission signal of each physical PICO, that is, only the frequency domain resource identified as 1 is transmitted, if the corresponding identifications of the corresponding resources in the allocation table of a certain physical PICO are all 0, the corresponding physical PICO may be turned off, and the transmission power is 0.

According to the signal processing method, sounding Reference Signals (SRS) transmitted through a plurality of physical PICO are obtained, wherein each SRS corresponds to one terminal; and determining the physical PICO to which each terminal corresponding to the SRS belongs, so that all uplink signals of the terminal can be combined on the corresponding physical PICO only according to the physical PICO to which the terminal belongs and sent to the BBU, noise improvement caused by direct combination of all the PICOs can be avoided, or all downlink signals of the terminal can be sent on the corresponding physical PICO only, power can be saved, and energy saving requirements are met.

As shown in fig. 5, the embodiment of the present application further provides a signal processing unit, which is executed by a baseband processing unit BBU, where the BBU is connected to an RHUB, the RHUB corresponds to at least one logical PICO, and each logical PICO in the at least one logical PICO corresponds to a plurality of physical PICOs, and the method includes:

step 501: and receiving a sounding reference signal SRS sent by RHIB.

Step 502: and determining the physical PICO to which the terminal corresponding to each SRS belongs according to the SRS.

In the embodiment of the application, RHIB obtains time domain data on a plurality of input physical PICO and then performs fast Fourier transform (Fast Fourier Transform, FFT) to obtain frequency domain data; alternatively, RHUB directly obtains frequency domain data on multiple physical PICOs. The RHIB then transmits the acquired data to the BBU. Here, each SRS corresponds to one terminal.

In this embodiment of the present application, according to the sounding reference signal SRS sent by the RHUB, the physical PICO to which the terminal corresponding to each SRS belongs is determined, so that the subsequent RHUB can combine all uplink signals of the terminal only on the corresponding physical PICO according to the physical PICO to which the terminal belongs, and noise improvement caused by direct combination of all physical PICOs can be avoided.

Here, the first indication information may directly include the content of the physical PICO to which the terminal corresponding to each SRS belongs, or may indirectly indicate the physical PICO to which the terminal corresponding to each SRS belongs, for example, the first indication information may be a resource allocation table, and the physical PICO to which the terminal corresponding to each SRS belongs is indicated by the resource allocation table. Each physical PICO corresponds to a resource allocation table, and in the allocation resources corresponding to the resource allocation table, the resources occupied by the first terminal correspond to a first identifier, and the resources occupied by the second terminal correspond to a second identifier; the first terminal includes: a terminal belonging to the physical PICO and/or a terminal which does not determine the physical PICO under the logical PICO corresponding to the physical PICO; the second terminal includes a terminal not belonging to the physical PICO.

In this embodiment of the present application, according to a sounding reference signal SRS sent by the RHUB, determining a physical PICO to which each terminal corresponding to the SRS belongs, and sending first indication information to the RHUB, where the first indication information is used to indicate the physical PICO to which each terminal corresponding to the SRS belongs, so that by using the first indication information, the RHUB can combine all uplink signals of the terminal only on the corresponding physical PICO according to the physical PICO to which the terminal belongs, and noise improvement caused by directly combining all the PICOs can be avoided.

Optionally, before determining the physical PICO to which the terminal corresponding to each SRS belongs according to the SRS, the method further includes:

Optionally, determining, according to the SRS, a physical PICO to which the terminal corresponding to each SRS belongs, including:

determining a target physical PICO corresponding to the first SRS period according to the preset polling strategy; the first SRS period may be specifically a current SRS period;

In the ith SRS period, the number corresponding to the target physical PICO is P (n, x);

where x=mod (i, M)), i=ceil (Tframe/Tsrs), tframe indicates a current radio frame index, tsrs indicates an SRS period, n indicates a number of a logical PICO corresponding to the target physical PICO, and i is a positive integer.

It should be noted that the specific interaction process between the BBU and the RHUB is described in detail in the foregoing embodiments, and will not be described herein.

In this embodiment of the present application, according to the sounding reference signal SRS transmitted by the RHUB, the physical PICO to which the terminal corresponding to each SRS belongs is determined, so that the subsequent RHUB can combine all uplink signals of the terminal only on the corresponding physical PICO according to the physical PICO to which the terminal belongs, and noise improvement caused by direct combination of all physical PICOs can be avoided.

As shown in fig. 6, an embodiment of the present application provides a signal processing apparatus, which is applied to a remote radio hub RHUB, where the RHUB corresponds to one logical PICO base station PICO, and the logical PICO corresponds to a plurality of physical PICOs, and the apparatus includes a memory 620, a transceiver 600, and a processor 610;

a memory 620 for storing a computer program; a transceiver 600 for transceiving data under the control of the processor 610; a processor 610 for reading the computer program in the memory and performing the following operations:

Optionally, the step of determining, by the processor 610, a physical PICO to which each terminal corresponding to the SRS belongs includes:

the SRS received by the plurality of physical PICOs are sent to the baseband processing unit BBU through the transceiver 600 according to a preset polling policy, where the preset polling policy includes: in each SRS period of a polling period, sending SRS on one physical PICO corresponding to the logic PICO to the BBU, wherein the polling period comprises M SRS periods, and M is the number of the physical PICO corresponding to the logic PICO;

and acquiring, by the transceiver 600, first indication information sent by the BBU, where the first indication information is used to indicate a physical PICO to which each terminal corresponding to the SRS belongs.

Optionally, the sending, by the transceiver 600, the SRS received by the plurality of physical PICOs to the baseband processing unit BBU according to a preset polling policy includes:

where x=mod (i, M), i=ceil (Tframe/Tsrs), tframe indicates a current radio frame index, tsrs indicates an SRS period, and n indicates a number of the logical PICO corresponding to the physical PICO.

Optionally, the step of sending, by the transceiver, the uplink signal of the terminal to the baseband processing unit BBU according to the physical PICO to which the terminal belongs, includes:

Optionally, the step of determining, by the processor 610, a resource allocation table corresponding to each physical PICO of the plurality of physical PICOs according to the physical PICO to which the target terminal performing data transceiving in each time slot belongs includes:

transmitting a physical PICO to which a target terminal carrying out data transceiving in each time slot belongs to the BBU through a transceiver;

Optionally, the processor is further configured to:

and updating the resource configuration table at each scheduling time unit.

Wherein in fig. 6, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 610 and various circuits of memory represented by memory 620, 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. The bus interface provides an interface. Transceiver 600 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 610 is responsible for managing the bus architecture and general processing, and the memory 620 may store data used by the processor 610 in performing operations.

The processor 610 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 (Complex Programmable Logic Device, CPLD), or it may employ a multi-core architecture.

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 embodiment of the signal processing method applied to RHUB, and can achieve the same technical effects, and specific details of the same parts and beneficial effects as those of the embodiment of the method in this embodiment are not repeated herein.

The embodiment of the application also provides a signal processing device, which is applied to a baseband processing unit BBU, wherein the BBU is connected with an RHUB, the RHUB corresponds to at least one logic PICO, each logic PICO in the at least one logic PICO corresponds to a plurality of physical PICOs, and the structure schematic diagram can refer to fig. 6, and the device comprises a memory, a transceiver and a processor;

Receiving a sounding reference signal SRS sent by RHIB through a transceiver;

Optionally, the processor is further configured to:

and acquiring SRS sent by the RHIB according to a preset polling strategy through a transceiver, wherein the preset polling strategy comprises the following steps: and in each SRS period of the polling period, sending the SRS on one physical PICO corresponding to the logic PICO to the BBU, wherein the polling period comprises M SRS periods, and M is the number of the physical PICO corresponding to the logic PICO.

Optionally, the step of determining, by the processor, a physical PICO to which the terminal corresponding to each SRS belongs according to the SRS includes:

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 signal processing method embodiment applied to the baseband processing unit BBU, and can 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. 7, the embodiment of the present application further provides a signal processing device, which is applied to the remote radio hub RHUB, where the RHUB corresponds to one logical PICO base station PICO, and the logical PICO corresponds to a plurality of physical PICOs, and the device includes:

a first acquiring unit 701, configured to acquire sounding reference signals SRS received through the plurality of physical PICOs, where each SRS corresponds to one terminal;

a first determining unit 702, configured to determine a physical PICO to which a terminal corresponding to each SRS belongs;

the first transmission unit 703 is configured to send, according to the physical PICO to which the terminal belongs, an uplink signal of the terminal to the baseband processing unit BBU.

Optionally, the first determining unit includes:

The first transmission subunit is configured to send the SRS received by the plurality of physical PICOs to the baseband processing unit BBU according to a preset polling policy, where the preset polling policy includes: in each SRS period of a polling period, sending SRS on one physical PICO corresponding to the logic PICO to the BBU, wherein the polling period comprises M SRS periods, and M is the number of the physical PICO corresponding to the logic PICO;

a first obtaining subunit, configured to obtain first indication information sent by the BBU, where the first indication information is used to indicate a physical PICO to which each terminal corresponding to the SRS belongs.

Optionally, the first transmission subunit is configured to transmit, in an ith SRS period, an SRS on a physical PICO numbered as P (n, x) to the BBU, where i is a positive integer;

Optionally, the first determining unit includes:

a first processing subunit, configured to measure the SRS received by each physical PICO of the plurality of physical PICOs, and determine a signal quality value corresponding to the SRS received by each physical PICO of the plurality of physical PICOs;

And the first determining subunit is configured to determine that a terminal corresponding to the SRS belongs to the first physical PICO if a signal quality value corresponding to the SRS received by the first physical PICO in the plurality of physical PICOs is greater than a first preset threshold.

Optionally, the first transmission unit includes:

a second determining subunit, configured to determine, according to a physical PICO to which the target terminal performing data transceiving in each time slot belongs, a resource allocation table corresponding to each physical PICO in the plurality of physical PICOs;

the second transmission subunit is configured to combine and send signals on the physical PICO to which the target terminal belongs to the BBU according to the resource configuration table corresponding to each physical PICO, where the signals on the physical PICO to which the target terminal belongs include uplink signals of the target terminal;

Optionally, the second determining subunit is configured to:

Optionally, the apparatus of the embodiment of the present application further includes:

and the updating unit is used for updating the resource configuration table in each scheduling time unit.

Optionally, the first transmission unit includes:

a third determining subunit, configured to determine, according to a resource configuration table corresponding to each physical PICO, a target configuration resource corresponding to the first identifier in a target resource configuration table, where the target resource configuration table is a resource configuration table corresponding to a physical PICO to which the target terminal belongs;

and the third transmission subunit is used for merging and sending the signals on the target configuration resource to the BBU.

It should be noted that, the above device provided in this embodiment of the present application can implement all the method steps implemented by the signal processing method embodiment executed by the remote radio hub RHUB, and can 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 herein.

As shown in fig. 8, the embodiment of the present application further provides a signal processing apparatus, which is executed by a baseband processing unit BBU, where the BBU is connected to an RHUB, the RHUB corresponds to at least one logic PICO, and each logic PICO in the at least one logic PICO corresponds to a plurality of physical PICOs, and the apparatus includes:

A first receiving unit 801, configured to receive a sounding reference signal SRS sent by an RHUB;

a second determining unit 802, configured to determine, according to the SRS, a physical PICO to which the terminal corresponding to each SRS belongs.

and the second transmission unit is used for sending first indication information to the RHIB, wherein the first indication information is used for indicating the physical PICO to which each terminal corresponding to the SRS belongs.

a second obtaining unit, configured to obtain, before the second determining unit determines, according to the SRS, a physical PICO to which each terminal corresponding to the SRS belongs, an SRS sent by the RHUB according to a preset polling policy, where the preset polling policy includes: and in each SRS period of the polling period, sending SRS on one physical PICO corresponding to the logic PICO to the BBU, wherein the polling period comprises M SRS periods, and M is the number of the physical PICO corresponding to the logic PICO.

Optionally, the second determining unit includes:

a fifth determining subunit, configured to measure the SRS transmitted by each logic PICO, and determine a signal quality value corresponding to the SRS transmitted by each logic PICO;

A sixth determining subunit, configured to determine that, if a signal quality value corresponding to an SRS transmitted by a first logic PICO in the at least one logic PICO is greater than a second preset threshold, a terminal corresponding to the SRS belongs to the first logic PICO;

a seventh determining subunit, configured to determine, according to the preset polling policy, a target physical PICO corresponding to the first SRS period;

and an eighth determining subunit, configured to determine that the terminal corresponding to the SRS belongs to the target physical PICO of the first logical PICO.

where x=mod (i, M)), i=ceil (Tframe/Tsrs), tframe indicates a current radio frame index, tsrs indicates an SRS period, and n indicates a number of a logical PICO corresponding to the target physical PICO.

a third determining unit, configured to determine, according to a physical PICO to which the target terminal performing data transceiving in each time slot belongs, a resource allocation table corresponding to each physical PICO in the plurality of physical PICOs;

and the third transmission unit is used for transmitting the resource configuration table corresponding to each physical PICO to the RHIB after the third determination unit determines the resource configuration table corresponding to each physical PICO.

It should be noted that, the above device provided in this embodiment of the present application can implement all the method steps implemented by the signal processing method embodiment executed by the BBU, and can 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.

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

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a processor-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all or part of the technical solution contributing to the prior art, or 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 methods described in the 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.

In some embodiments of the present application, there is also provided a processor-readable storage medium storing program instructions for causing the processor to perform the steps of:

Alternatively, the program instructions are for causing the processor to perform the steps of:

receiving a sounding reference signal SRS sent by RHIB; and determining the physical PICO to which the terminal corresponding to each SRS belongs according to the SRS.

When the program instructions are executed by the processor, all the implementation manners in the signal processing method embodiments are implemented, and in order to avoid repetition, a description is omitted here.

The terminal device 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. The names of the terminal devices may also be different in different systems, for example in a 5G system, the terminal devices may be referred to as User Equipment (UE). The wireless terminal device may communicate with one or more Core Networks (CNs) via a radio access Network (Radio Access Network, RAN), which may be mobile terminal devices such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access Network. 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. The wireless Terminal Device may also be referred to as a system, subscriber Unit (Subscriber Unit), subscriber Station (Subscriber Station), mobile Station (Mobile Station), remote Station (Remote Station), access Point (Access Point), remote Terminal Device (Remote Terminal), access Terminal Device (Access Terminal), user Terminal Device (User Terminal), user Agent (User Agent), user equipment (User Device), and the embodiments of the present application are not limited.

The network device according to the embodiment of the present application may be a base station, where the base station may include a plurality of cells for providing services for a 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 terminal devices, or other names, depending on the particular application. The network device may be operable to exchange received air frames with internet protocol (Internet Protocol, IP) packets as a router between the wireless terminal device 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 terminal 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.

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 performed by a remote radio hub RHUB, the RHUB corresponding to a logical PICO base station PICO, the logical PICO corresponding to a plurality of physical PICOs, the method comprising:

2. The method of claim 1, wherein the determining the physical PICO to which the terminal corresponding to each SRS belongs comprises:

3. The method of claim 2, wherein the sending the SRS received by the plurality of physical PICOs to the baseband processing unit BBU according to a preset polling policy includes:

4. The method of claim 1, wherein the determining the physical PICO to which the terminal corresponding to each SRS belongs comprises:

5. The method according to claim 1, wherein the sending the uplink signal of the terminal to the baseband processing unit BBU according to the physical PICO to which the terminal belongs includes:

6. The method of claim 5, wherein the determining the resource allocation table corresponding to each of the plurality of physical PICOs according to the physical PICO to which the target terminal performing data transceiving in each time slot belongs comprises:

7. The method as recited in claim 5, further comprising:

and updating the resource configuration table at each scheduling time unit.

8. The method of claim 5, wherein the merging and sending the signals on the physical PICO to which the target terminal belongs to the BBU according to the resource configuration table corresponding to each physical PICO includes:

9. A signal processing method performed by a baseband processing unit BBU, said BBU being connected to a RHUB, said RHUB corresponding to at least one logical PICO, each of said at least one logical PICO corresponding to a plurality of physical PICOs, said method comprising:

receiving a sounding reference signal SRS sent by RHIB;

10. The method as recited in claim 9, further comprising:

11. The method of claim 9, further comprising, prior to determining, from the SRS, a physical PICO to which each terminal to which the SRS corresponds belongs:

12. The method of claim 11, wherein the determining, from the SRS, a physical PICO to which each terminal corresponding to the SRS belongs comprises:

13. The method of claim 12, wherein in the ith SRS period, the number corresponding to the target physical PICO is P (n, x);

14. The method of claim 9, wherein after determining the physical PICO to which each terminal corresponding to the SRS belongs, further comprising:

15. The method of claim 14, wherein after determining the resource configuration table corresponding to each physical PICO, further comprising:

16. A signal processing device applied to a remote radio hub RHUB, wherein the RHUB corresponds to a logic PICO base station PICO, and the logic PICO corresponds to a plurality of physical PICOs, and the signal processing device is characterized by comprising a memory, a transceiver and a processor;

17. The apparatus of claim 16, wherein the processor performs the step of determining a physical PICO to which each terminal corresponding to the SRS belongs, comprising:

18. The apparatus of claim 17, wherein the transmitting, by the transceiver, the SRS received by the plurality of physical PICOs to the baseband processing unit BBU according to a preset polling policy comprises:

19. The apparatus of claim 16, wherein the processor performs the step of determining a physical PICO to which each terminal corresponding to the SRS belongs, comprising:

20. The apparatus of claim 16, wherein the processor performs the step of transmitting an uplink signal of the terminal to a baseband processing unit BBU via a transceiver according to a physical PICO to which the terminal belongs, comprising:

21. The apparatus of claim 20, wherein the processor performs the step of determining a resource configuration table corresponding to each of the plurality of physical PICOs based on the physical PICOs to which the target terminal for data transceiving in each time slot belongs, comprising:

22. The apparatus of claim 20, wherein the processor is further configured to:

And updating the resource configuration table at each scheduling time unit.

23. The apparatus of claim 20, wherein the processor performs the step of combining signals on the physical PICO to which the target terminal belongs through a transceiver according to a resource configuration table corresponding to each physical PICO, and transmitting the signals to a BBU, comprising:

24. A signal processing device applied to a baseband processing unit BBU, said BBU being connected to a RHUB, said RHUB corresponding to at least one logical PICO, each of said at least one logical PICO corresponding to a plurality of physical PICOs, characterized in that said device comprises a memory, a transceiver, a processor;

Receiving a sounding reference signal SRS sent by RHIB;

25. The apparatus of claim 24, wherein the processor is further configured to:

26. The apparatus of claim 24, wherein the processor, prior to determining the physical PICO to which each terminal corresponding to the SRS belongs based on the SRS, further comprises:

27. The apparatus of claim 26, wherein the processor performs the step of determining, from SRS, a physical PICO to which each terminal corresponding to the SRS belongs, comprising:

28. The apparatus of claim 27, wherein in an ith SRS period, a number corresponding to the target physical PICO is P (n, x);

29. The apparatus of claim 24, wherein after the processor performs the step of determining the physical PICO to which each terminal corresponding to the SRS belongs, the processor is further configured to perform the step of:

30. The apparatus of claim 29, wherein after the processor performs the step of determining a resource configuration table for each physical PICO, the processor is further configured to perform the step of:

31. A signal processing device, applied to a remote radio hub, RHUB, for execution, the RHUB corresponding to a logical PICO base station, PICO, the logical PICO corresponding to a plurality of physical PICOs, the device comprising:

32. A signal processing device applied to a baseband processing unit BBU, said BBU being connected to a RHUB, said RHUB corresponding to at least one logical PICO, each of said at least one logical PICO corresponding to a plurality of physical PICOs, said device comprising:

33. A processor-readable storage medium, characterized in that the processor-readable storage medium stores program instructions for causing the processor to perform the steps of the signal processing method according to any one of claims 1 to 8 or to perform the steps of the signal processing method according to any one of claims 9 to 15.