CN111093293A - Antenna signal processing method and device - Google Patents

Antenna signal processing method and device Download PDF

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Publication number
CN111093293A
CN111093293A CN201811234745.9A CN201811234745A CN111093293A CN 111093293 A CN111093293 A CN 111093293A CN 201811234745 A CN201811234745 A CN 201811234745A CN 111093293 A CN111093293 A CN 111093293A
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China
Prior art keywords
frequency domain
rhub
domain digital
digital signal
rru
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CN201811234745.9A
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Chinese (zh)
Inventor
邹素玲
蒋一鸣
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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Priority to CN201811234745.9A priority Critical patent/CN111093293A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H04W88/085—Access point devices with remote components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03159—Arrangements for removing intersymbol interference operating in the frequency domain

Abstract

The application discloses a method and a device for processing antenna signals, which are used for realizing that functional division between different RRU platforms and a baseband processing unit BBU can be unified to frequency domain signal division, transmission data compression with finer granularity can be carried out after the division is converted into frequency domain data, the performance of a frequency domain compression algorithm is improved, and self-adaptive dynamic data combination among channels is realized. The antenna signal processing method provided by the application comprises the following steps: the real-time cooperation hub RHUB receives frequency domain digital signals sent by a plurality of RRUs; and the RHUB combines the frequency domain digital signals sent by the plurality of RRUs, wherein the frequency domain digital signal sent by each RRU comprises frequency domain digital signals of a plurality of channels.

Description

Antenna signal processing method and device
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for processing an antenna signal.
Background
In the networking of a wireless communication system, a plurality of Radio Remote Units (RRUs) are generally used to form a distributed antenna system for indoor coverage and coverage of scenes such as high-speed movement. The RRU is configured to include Pico base station/Radio frequency Unit (Pico RRU) with hundreds of watts of power to a large power multi-antenna RRU with tens of watts of power. An indoor coverage distributed system is generally formed by connecting a Real-time collaboration HUB (RHUB) with a BBU and connecting a plurality of picorrus through the RHUB; the high-speed mobile scene is composed of 1 BBU with a plurality of high-power multi-antenna RRUs. Due to the introduction of large-scale antenna technology, the complexity of baseband processing is greatly increased, and in an Active Antenna Unit (AAU) system with 64 channels, an interface between a BBU and an AAU has been gradually changed to transmit frequency domain data. In the existing system, for the distributed picoRRU system, because the number of RRUs is large, all channel data cannot be transmitted to the BBU for processing, data combination must be performed, and the existing data combination mode still adopts the traditional time domain digital IQ signals for antenna combination, so that the interfaces between the picoRRU and the BBU are not uniform, and the BBU software development workload is increased.
Disclosure of Invention
The embodiment of the application provides an antenna signal processing method, which is used for realizing that functional division between different RRU platforms and a baseband processing unit BBU can be unified to frequency domain signal division, transmission data compression with finer granularity can be carried out after the division is converted into frequency domain data, the performance of a frequency domain compression algorithm is improved, and self-adaptive dynamic data combination among channels is realized.
On the RHUB side, an antenna signal processing method provided in an embodiment of the present application includes:
the real-time cooperation hub RHUB receives frequency domain digital signals sent by a plurality of RRUs;
and the RHUB combines the frequency domain digital signals sent by the plurality of RRUs, wherein the frequency domain digital signal sent by each RRU comprises frequency domain digital signals of a plurality of channels.
By the method, the functional division between the RRU platform and the BBU can be unified to frequency domain signal division.
Long Term Evolution (LTE) and OFDM-based global 5G standard 5G NR designed by a brand-new air interface are wireless systems based on OFDM technology, and user signal detection, modulation, scheduling and other processing are frequency domains. The conventional data merging mode still adopts the traditional time domain digital signals to perform antenna merging, but the time domain can only support the data processing merging of a static configuration mode between channels, and the antenna signal processing method provided by the embodiment of the application can realize the self-adaptive dynamic data merging between the channels, thereby improving the performance of a frequency domain compression algorithm.
Optionally, the frequency domain digital signal sent by each RRU and including multiple channels is a compressed signal.
Optionally, before combining the frequency domain digital signals in the plurality of RRUs, the RHUB decompresses the compressed frequency domain digital signal including the plurality of channels sent by each RRU.
Optionally, when the RRUs cannot support the conversion of the time domain digital signal into the frequency domain digital signal, the RHUB receives the time domain compressed digital signals sent by the plurality of RRUs; decompressing the time domain compressed digital signals sent by the plurality of RRUs; converting the decompressed time domain compressed digital signals in each channel of each RRU into frequency domain digital signals; and combining the frequency domain digital signals.
Because processing overhead is required to be increased when time domain transformation is performed on the RRU side, the cost and power consumption of the RRU can be increased, especially the pressure is higher for the RRU with low power consumption and low cost, the number of RHUBs is small, and the cost is not high as that of the RRU. If the RRU side can not support the conversion of the time domain digital signals to the frequency domain digital signals, the time domain compressed digital signals of the RRU can be transmitted to the RHUB, the time domain conversion of each channel is realized after the RHUB time domain decompression, and then the frequency domain digital signals are combined continuously.
Optionally, the RHUB is a first RHUB, and the frequency domain digital signal after the RHUB combination is a first frequency domain digital signal.
Optionally, the first RHUB transmits the first frequency domain digital signal to a cascaded second RHUB or to a baseband unit BBU.
When there is a cascade of RHUBs, the second RHUB directly performs frequency domain combining on the digital signal from the first RHUB, since the digital signal output by the RHUB is already a frequency domain digital signal.
Optionally, the RHUB is a first RHUB, and the RHUB compresses the combined frequency domain digital signal to a first frequency domain digital signal.
Optionally, the first RHUB receives a second frequency domain digital signal sent by a cascaded second RHUB, where the second frequency domain digital signal includes frequency domain digital signals of multiple channels in an RRU; and the first RHUB combines the first frequency domain digital signal and the second frequency domain digital signal, and sends the combined frequency domain digital signal to a third RHUB cascaded with the first RHUB or a BBU.
Optionally, the RHUB combines frequency domain digital signals of multiple channels in each RRU, and specifically includes:
the RHUB groups the RRUs according to channel combination requirements in each RRU;
and the RHUB combines the digital signals transmitted on all channels of the same antenna port corresponding to the RRUs in the same group.
By the antenna signal processing method provided by the embodiment of the application, the RHUB groups a plurality of RRUs according to channel combination requirements in each RRU. Physical Resource Block (PRB) level frequency domain activation detection (judgment according to a power ratio) can be adopted, group-by-group judgment is carried out, data combination is only carried out on RRUs with signals in the groups, loss of useful signals is avoided, lifting of bottom noise is effectively reduced, the RRU data of an activation detection threshold is discarded, combination is not carried out, and the activation detection threshold can be set according to different scenes and channel types; the PRB-level frequency domain strongest signal selection can also be adopted, the judgment is carried out group by group, the RRUs with the strongest signals in the group are selected according to the sorting of the power of the received signals, and the bottom noise can be effectively reduced.
The embodiment of the application can realize that digital signals of each channel are converted into frequency domains from time domains in a distributed multi-channel system, the digital signals are combined in the frequency domains according to network planning static configuration (RRUs are not grouped), and dynamic digital signal combination is also realized in the frequency domains according to frequency domain user detection information.
Correspondingly, on the RRU side, an embodiment of the present application provides a method for processing an antenna signal, including:
the RRU converts the baseband digital sampling signal of each channel into a frequency domain digital signal;
and transmitting the frequency domain digital signals of a plurality of channels to the RHUB.
Alternatively, the frequency domain digital signal containing a plurality of channels transmitted to the RHUB is a compressed signal.
Optionally, when the RRU cannot support the conversion of the time domain digital signal into the frequency domain digital signal, the RRU compresses the time domain digital signal; and transmitting the time domain compressed digital signal to the RHUB.
On the RHUB side, an embodiment of the present application provides an antenna signal processing apparatus, including:
a memory for storing program instructions;
a processor for calling the program instructions stored in the memory and executing according to the obtained program:
the real-time cooperation hub RHUB receives frequency domain digital signals sent by a plurality of RRUs;
and the RHUB combines the frequency domain digital signals sent by the plurality of RRUs, wherein the frequency domain digital signal sent by each RRU comprises frequency domain digital signals of a plurality of channels.
Optionally, the frequency domain digital signal sent by each RRU and including multiple channels is a compressed signal.
Optionally, before combining the frequency domain digital signals in the plurality of RRUs, the RHUB decompresses the compressed frequency domain digital signal including the plurality of channels sent by each RRU.
Optionally, when the RRUs cannot support the conversion of the time domain digital signal into the frequency domain digital signal, the RHUB receives the time domain compressed digital signals sent by the plurality of RRUs; decompressing the time domain compressed digital signals sent by the plurality of RRUs; converting the decompressed time domain compressed digital signals in each channel of each RRU into frequency domain digital signals; and combining the frequency domain digital signals.
Optionally, the RHUB is a first RHUB, and the frequency domain digital signal after the combination of the RHUBs is a first frequency domain digital signal; and the first RHUB sends the first frequency domain digital signal to a second cascaded RHUB or a baseband unit (BBU).
Optionally, the RHUB is a first RHUB, and the RHUB compresses the combined frequency domain digital signal to a first frequency domain digital signal; the first RHUB receives a second frequency domain digital signal sent by a second cascaded RHUB, and the second frequency domain digital signal comprises frequency domain digital signals of a plurality of channels in the RRU; and the first RHUB combines the first frequency domain digital signal and the second frequency domain digital signal, and sends the combined frequency domain digital signal to a third RHUB cascaded with the first RHUB or a BBU.
Optionally, the RHUB combines frequency domain digital signals of multiple channels in each RRU, and specifically includes:
the RHUB groups the RRUs according to channel combination requirements in each RRU;
and the RHUB combines the digital signals transmitted on all channels of the same antenna port corresponding to the RRUs in the same group.
On the RRU side, an embodiment of the present application provides an apparatus for processing an antenna signal, where the apparatus includes:
a memory for storing program instructions;
a processor for calling the program instructions stored in the memory and executing according to the obtained program:
the RRU converts the baseband digital sampling signal of each channel into a frequency domain digital signal;
and transmitting the frequency domain digital signals of a plurality of channels to the RHUB.
Alternatively, the frequency domain digital signal containing a plurality of channels transmitted to the RHUB is a compressed signal.
Optionally, when the RRU cannot support the conversion of the time domain digital signal into the frequency domain digital signal, the RRU compresses the time domain digital signal; and transmitting the time domain compressed digital signal to the RHUB.
On the RHUB side, an embodiment of the present application provides an antenna signal processing apparatus, including:
a receiving unit, configured to receive frequency domain digital signals sent by a plurality of RRUs;
and the merging unit is used for merging the frequency domain digital signals in the plurality of RRUs, wherein the frequency domain digital signal sent by each RRU comprises frequency domain digital signals of a plurality of channels.
Optionally, the frequency-domain digital signal sent by each RRU and including multiple channels received by the receiving unit is a compressed signal.
On the RRU side, an embodiment of the present application provides an apparatus for processing an antenna signal, where the apparatus includes:
the conversion unit is used for converting the baseband digital sampling signal of each channel into a frequency domain digital signal;
and the transmitting unit is used for transmitting the frequency domain digital signals of the channels to the RHUB.
Optionally, the frequency domain digital signal containing multiple channels sent to the RHUB by the sending unit is a compressed signal.
Another embodiment of the present application provides a computer storage medium having stored thereon computer-executable instructions for causing a computer to perform any one of the methods described above.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic diagram of a method for processing an antenna signal according to embodiment 1 of the present application;
fig. 2 is a schematic diagram of a method for processing an antenna signal according to embodiment 2 of the present application;
fig. 3 is a schematic flowchart of a method for processing an antenna signal provided at the RHUB side according to an embodiment of the present application;
fig. 4 is a schematic flowchart of a method for processing an antenna signal provided at an RRU side according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of an antenna signal processing apparatus provided at the RHUB side in an embodiment of the present application;
fig. 6 is a schematic structural diagram of an antenna signal processing apparatus provided at the RHUB side in an embodiment of the present application;
fig. 7 is a schematic structural diagram of a computing device according to an embodiment of the present application.
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 application, 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 application.
In the distributed picoRRU/RRU system, as the number of RRUs is large, the number of channels processed by one BBU cell is limited, all channel data cannot be transmitted to the BBU for processing, and the data must be merged to reduce the transmission quantity and then transmitted to the BBU for processing. In the prior art, time domain data of a plurality of picorrus are transmitted to an RHUB, the RHUB performs digital signal combination on time domain digital signals of channels corresponding to the picorrus, and the time domain digital signals are transmitted to a BBU side for processing after being combined. If the RHUB cascade exists, the data of the next RHUB can be selected to be subjected to digital signal time domain combination by the previous RHUB.
In the prior art, a time domain combination method is adopted to improve background noise, which is generally inherent noise in a circuit and is base noise generated by a device during actual working, and the signal is submerged when the background noise is high, and the background noise is accumulated under the condition of multiple antennas, so that the detection of the signal is influenced, the sensitivity of the signal detection is reduced, and the prior art can only support a statically configured inter-channel data combination mode.
The embodiment of the application adopts frequency domain digital signal combination. Analog signals of each channel of the RRUs are converted into time domain Digital signals through an Analog-to-Digital Converter (ADC), and then converted into frequency domain Digital signals through Fast Fourier Transform (FFT), Digital signals are combined at corresponding positions of the frequency domain Digital signals of the plurality of channels, and the signals are compressed in the frequency domain and transmitted to the BBU. In the antenna signal processing method provided by the embodiment of the application, compression and decompression can be supported by transmission of both time domain signals and frequency domain signals, and the requirement of transmission bandwidth is reduced. The antenna signal processing method provided by the embodiment of the present application may adopt the following two specific embodiments:
the first embodiment is as follows:
on the RRU side, see fig. 1, for example, on the Pico RRU side, FFT change and Physical Random Access Channel (PRACH) processing are performed on a baseband digital sampling signal of each channel, where the FFT change realizes conversion from a time domain digital signal to a frequency domain digital signal, and the frequency domain digital signal is compressed and then sent to an RHUB;
at the RHUB side, after receiving the frequency domain digital signals from the plurality of RRUs, the RHUB firstly decompresses the frequency domain, then merges the frequency domain data of the corresponding channels according to the operation configuration of the base station side, and then compresses the frequency domain of the merged digital signals and transmits the merged digital signals to the upper stage RHUB (if the concatenation is needed) or BBU.
The channel combination in this embodiment is the key to realize the dynamic digital signal combination of the inter-channel adaptation. Because the user channel detection and data processing of an Orthogonal Frequency Division Multiplexing (OFDM) system are both performed in the Frequency domain, time domain data is difficult to detect whether a user has a signal, and user-level data is easily separated after a time-Frequency digital signal is converted into a Frequency domain digital signal, so that it is possible to judge the channel effectiveness according to power, that is, the configuration and combination of Frequency domain fixed channels can be realized, and an effective channel only combined with a signal can be selected. Therefore, the channel merging method of the embodiment of the application is more flexible and better in performance than time domain digital signal merging.
The combination of digital signals transmitted on frequency domain channels may employ, and is not limited to, the following adaptive dynamic data combining processing methods:
the method 1 adopts Physical Resource Block (PRB) level frequency domain activation detection (according to power ratio judgment), groups RRUs, judges group by group, and only combines digital signals of the RRUs with signals in the groups.
And 2, selecting the digital signal with the strongest frequency domain by PRB level, grouping the RRUs, judging group by group, sorting according to the power of the received signal, and selecting the RRU with the strongest digital signal in the group to combine the digital signals.
Example two:
considering that processing overhead is increased when time domain digital signal conversion is performed on the RRU side, the cost and power consumption of the RRU are increased, especially for low-power and low-cost RRUs, the pressure is higher, and the number of RHUBs is small, and the cost consumption is not as large as that of the RRU.
On the RRU side, if the RRU side cannot support the conversion of the time domain digital signal to the frequency domain digital signal, the time domain compressed digital signal of the RRU may be transmitted to the RHUB, which is specifically implemented with reference to the first-stage RHUB portion in fig. 2;
on the RHUB side, decompressing the time domain compressed digital signals transmitted by the RRU side to realize time domain conversion of each channel, and then merging the frequency domain digital signals;
when there is a RHUB cascade, because the output data of the RHUB is already frequency domain data, the previous stage RHUB directly performs frequency domain digital signal combination on the RHUB data from the next stage, and the specific implementation is as shown in the secondary RHUB part in fig. 2.
The combination of the digital signals transmitted through the frequency domain channels in this embodiment is the same as the combination method of the digital signals transmitted through the frequency domain channels in the first embodiment.
In summary, on the RHUB side, an implementation flow of the method for processing an antenna signal provided in the embodiment of the present application is shown in fig. 3, and the method includes:
s101, a real-time cooperation hub RHUB receives frequency domain digital signals sent by a plurality of RRUs;
s102, the RHUB combines frequency domain digital signals sent by a plurality of RRUs, wherein the frequency domain digital signal sent by each RRU comprises frequency domain digital signals of a plurality of channels.
Since the Long Term Evolution (LTE) and the 5G standard 5G NR based on the OFDM brand-new air interface design are wireless systems based on the OFDM technology, and the processing such as user signal detection, modulation, scheduling and the like is a frequency domain, the embodiment of the present application realizes the conversion of time domain digital signals to frequency domain digital signals, and improves the performance of a frequency domain compression algorithm.
Optionally, the frequency domain digital signal sent by each RRU and including multiple channels is a compressed signal.
Due to the fact that the conversion from the time domain digital signal to the frequency domain digital signal is achieved, transmission data compression with finer granularity can be conducted.
Optionally, before combining the frequency domain digital signals in the plurality of RRUs, the RHUB decompresses the compressed frequency domain digital signal including the plurality of channels sent by each RRU.
Because processing overhead is required to be increased when time domain transformation is performed on the RRU side, the cost and power consumption of the RRU can be increased, especially the pressure is higher for the RRU with low power consumption and low cost, the number of RHUBs is small, and the cost is not high as that of the RRU. If the RRU side cannot support the conversion of the time domain digital signal to the frequency domain digital signal, the time domain compressed digital signal of the RRU may be transmitted to the RHUB, the time domain conversion of each channel is realized after the RHUB time domain decompression, and then the frequency domain digital signals are combined.
Optionally, in the second embodiment of the present application, when an RRU cannot support conversion of a time domain digital signal into a frequency domain digital signal, the RHUB receives a time domain compressed digital signal sent by a plurality of RRUs; decompressing the time domain compressed digital signals sent by the plurality of RRUs; converting the decompressed time domain compressed digital signals in each channel of each RRU into frequency domain digital signals; and combining the frequency domain digital signals.
Optionally, the RHUB is a first RHUB, and the frequency domain digital signal after the RHUB combination is a first frequency domain digital signal.
Optionally, the first RHUB transmits the first frequency domain digital signal to a cascaded second RHUB or to a baseband unit BBU.
For example, in the second embodiment of the present application, when there is an RHUB cascade, since the digital signal output by the RHUB is already a frequency domain digital signal, the second RHUB directly performs frequency domain combination on the digital signal from the first RHUB.
Optionally, the RHUB is a first RHUB, and the RHUB compresses the combined frequency domain digital signal to a first frequency domain digital signal.
Optionally, the first RHUB receives a second frequency domain digital signal sent by a cascaded second RHUB, where the second frequency domain digital signal includes frequency domain digital signals of multiple channels in an RRU; and the first RHUB combines the first frequency domain digital signal and the second frequency domain digital signal, and sends the combined frequency domain digital signal to a third RHUB cascaded with the first RHUB or a BBU.
Optionally, the RHUB combines frequency domain digital signals of multiple channels in each RRU, and specifically includes:
the RHUB groups the RRUs according to channel combination requirements in each RRU;
and the RHUB combines the digital signals transmitted on all channels of the same antenna port corresponding to the RRUs in the same group.
On the RRU side, an implementation flow of the method for processing an antenna signal provided in this embodiment of the present application is shown in fig. 4, and includes:
s201, the RRU converts the baseband digital sampling signal of each channel into a frequency domain digital signal;
s202, sending the frequency domain digital signals of the channels to the RHUB.
Optionally, when the antenna signal processing method according to the first embodiment of the present application is used, the frequency domain digital signal including multiple channels sent to the RHUB is a compressed signal.
Optionally, when the RRU cannot support the conversion of the time domain digital signal into the frequency domain digital signal, the RRU compresses the time domain digital signal by using the antenna signal processing method described in the second embodiment of the present application; and transmitting the time domain compressed digital signal to the RHUB.
On the RHUB side, an antenna signal processing apparatus provided in an embodiment of the present application, with reference to fig. 5, includes:
a receiving unit 11, configured to receive frequency domain digital signals sent by multiple RRUs;
a combining unit 12, configured to combine the frequency domain digital signals in multiple RRUs, where the frequency domain digital signal sent by each RRU includes frequency domain digital signals of multiple channels.
Optionally, the frequency-domain digital signal sent by each RRU and including multiple channels received by the receiving unit is a compressed signal.
Accordingly, on the RRU side, an embodiment of the present application provides an apparatus for processing an antenna signal, and referring to fig. 6, the apparatus includes:
a conversion unit 21, configured to convert the baseband digital sampling signal of each channel into a frequency domain digital signal;
a sending unit 22, configured to send the frequency domain digital signals of the multiple channels to the RHUB.
Optionally, the frequency domain digital signal containing multiple channels sent to the RHUB by the sending unit is a compressed signal.
The method and the device are based on the same application concept, and because the principles of solving the problems of the method and the device are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not repeated.
The technical scheme provided by the embodiment of the application can be suitable for various systems, particularly 5G systems. For example, the applicable system may be a global system for mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS) system, a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), a universal microwave Access (WiMAX) system, a 5G NR system, and the like. These various systems include terminal devices and network devices.
The terminal device referred to in the embodiments of the present application may refer to a device providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, or other processing device connected to a wireless modem. 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 Equipments (UEs). Wireless terminal devices, which may be mobile terminal devices such as mobile telephones (or "cellular" telephones) and computers with mobile terminal devices, e.g., mobile devices that may be portable, pocket, hand-held, computer-included, or vehicle-mounted, communicate with one or more core networks via the RAN. Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like. The wireless terminal device may also be referred to as a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile), a remote station (remote station), an access point (access point), a remote terminal device (remote terminal), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), and a user device (user device), which are not limited in this embodiment.
The network device according to the embodiment of the present application may be a base station, and the base station may include a plurality of cells. A base station may also be referred to as an access point, or a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or by other names, depending on the particular application. The network device may be configured to interconvert received air frames with 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 embodiment of the present application may be a Base Transceiver Station (BTS) in a global system for mobile communications (GSM) or a Code Division Multiple Access (CDMA), may also be a network device (NodeB) in a Wideband Code Division Multiple Access (WCDMA), may also be an evolved network device (eNB or e-NodeB) in a long term evolution (long term evolution, LTE) system, a 5G base station in a 5G network architecture (next generation system), or may also be a home evolved node B (HeNB), a relay node (HeNB), a home base station (femto), a pico base station (pico), and the like, which are not limited in the embodiments of the present application.
It should be noted that the division of the unit 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. In addition, functional units in the embodiments of the present application 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 computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, 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 application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The embodiment of the present application provides a computing device, which may specifically be a desktop computer, a portable computer, a smart phone, a tablet computer, a Personal Digital Assistant (PDA), and the like. The computing device may include a Central Processing Unit (CPU), memory, input/output devices, etc., the input devices may include a keyboard, mouse, touch screen, etc., and the output devices may include a Display device, such as a Liquid Crystal Display (LCD), a Cathode Ray Tube (CRT), etc.
The memory may include Read Only Memory (ROM) and Random Access Memory (RAM), and provides the processor with program instructions and data stored in the memory. In the embodiments of the present application, the memory may be used for storing a program of any one of the methods provided by the embodiments of the present application.
The processor is used for executing any one of the methods provided by the embodiment of the application according to the obtained program instructions by calling the program instructions stored in the memory.
The embodiment of the present application provides an antenna signal processing apparatus, referring to fig. 7, including a processor 500 and a memory 520:
if on the RHUB side, the processor 500 is configured to read the program in the memory 520, and perform the following processes:
receiving, by the transceiver 510, frequency domain digital signals transmitted by a plurality of radio remote units RRUs;
and combining the frequency domain digital signals sent by the plurality of RRUs, wherein the frequency domain digital signal sent by each RRU comprises frequency domain digital signals of a plurality of channels.
Optionally, the frequency domain digital signal sent by each RRU and including multiple channels is a compressed signal.
Optionally, the processor 500 decompresses the compressed frequency domain digital signal containing multiple channels sent by each RRU before combining the frequency domain digital signals in multiple RRUs.
Optionally, when an RRU cannot support conversion of a time domain digital signal into a frequency domain digital signal, the processor 500 receives a time domain compressed digital signal sent by multiple RRUs through the transceiver 510;
the processor 500 decompresses the time domain compressed digital signals sent by the plurality of RRUs;
the processor 500 converts the decompressed time domain compressed digital signal in each channel of each RRU into a frequency domain digital signal;
the processor 500 combines the frequency domain digital signals.
Optionally, the RHUB where the processor 500 is located is a first RHUB, and the frequency domain digital signal combined by the processor 500 is a first frequency domain digital signal; and the first RHUB sends the first frequency domain digital signal to a second cascaded RHUB or a baseband unit (BBU).
Optionally, the RHUB where the processor 500 is located is a first RHUB, and the processor 500 compresses the combined frequency domain digital signal into a first frequency domain digital signal;
the processor 500 receives, through the transceiver 510, a second frequency domain digital signal sent by a second cascaded RHUB, where the second frequency domain digital signal includes frequency domain digital signals of multiple channels in an RRU;
the processor 500 combines the first frequency domain digital signal and the second frequency domain digital signal, and sends the combined frequency domain digital signal to a third RHUB cascaded with the first RHUB or to a BBU.
Optionally, the processor 500 combines the frequency domain digital signals of the multiple channels in each RRU, which specifically includes:
grouping the RRUs according to channel combination requirements in each RRU;
and combining the digital signals transmitted on all channels of the same antenna port corresponding to the RRUs in the same group.
A transceiver 510 for receiving and transmitting data under the control of the processor 500.
If the RRU side is the RRU side, the processor 500 is configured to call the program instruction stored in the memory 520, and execute:
converting the baseband digital sampling signal of each channel into a frequency domain digital signal;
the frequency domain digital signals for a plurality of the channels are transmitted to the RHUB via transceiver 510.
Alternatively, the frequency domain digital signal containing multiple channels transmitted by the processor 500 to the RHUB via the transceiver 510 is a compressed signal.
Optionally, when the RRU cannot support the conversion of the time domain digital signal into the frequency domain digital signal, the processor 500 compresses the time domain digital signal; processor 500 transmits the time domain compressed digital signal to RHUB via transceiver 510.
Where in fig. 7, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 500 and memory represented by memory 520. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 510 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 may store data used by the processor 500 in performing operations.
The processor 500 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or a Complex Programmable Logic Device (CPLD).
Embodiments of the present application provide a computer storage medium for storing computer program instructions for an apparatus provided in the embodiments of the present application, which includes a program for executing any one of the methods provided in the embodiments of the present application.
The computer storage media may be any available media or data storage device that can be accessed by a computer, including, but not limited to, magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND FLASH), Solid State Disks (SSDs)), etc.
The method provided by the embodiment of the application can be applied to terminal equipment and also can be applied to network equipment.
The Terminal device may also be referred to as a User Equipment (User Equipment, abbreviated as "UE"), a Mobile Station (Mobile Station, abbreviated as "MS"), a Mobile Terminal (Mobile Terminal), or the like, and optionally, the Terminal may have a capability of communicating with one or more core networks through a Radio Access Network (RAN), for example, the Terminal may be a Mobile phone (or referred to as a "cellular" phone), a computer with Mobile property, or the like, and for example, the Terminal may also be a portable, pocket, hand-held, computer-built-in, or vehicle-mounted Mobile device.
A network device may be a base station (e.g., access point) that refers to a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminals. The base station may be configured to interconvert received air frames and IP packets as a router between the wireless terminal and the rest of the access network, which may include an Internet Protocol (IP) network. The base station may also coordinate management of attributes for the air interface. For example, the base Station may be a Base Transceiver Station (BTS) in GSM or CDMA, a base Station (NodeB) in WCDMA, an evolved Node B (NodeB or eNB or e-NodeB) in LTE, or a gNB in 5G system. The embodiments of the present application are not limited.
The above method process flow may be implemented by a software program, which may be stored in a storage medium, and when the stored software program is called, the above method steps are performed.
In summary, the present application discloses a method and an apparatus for processing an antenna signal, so as to implement that functional partitioning between different RRU platforms and BBUs can be unified to frequency domain signal partitioning, and transmission data compression with finer granularity can be performed after the frequency domain data is converted, thereby reducing performance loss of a frequency domain compression algorithm and implementing dynamic data merging between channels.
The method and the device realize that functional division between different RRU platforms and BBUs can be unified to frequency domain digital signal division, and since LTE and 5G NR are wireless systems based on OFDM technology, processing such as user signal detection, modulation and scheduling are frequency domains, transmission data compression with finer granularity can be carried out after digital signals are converted into frequency domain digital signals, loss of performance of a frequency domain compression algorithm is reduced, the performance of frequency domain digital signal combination is better than that of time domain digital signals, a time domain can only support data processing combination of a static configuration mode among channels, the frequency domain can realize self-adaptive dynamic data combination among channels, the frequency domain digital signal combination can also support data combination with finer granularity, for example, resource blocks at corresponding positions are combined according to a resource block power ratio, and the performance is further improved.
As will be appreciated by one skilled in the art, 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, 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 flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program 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 computer program instructions may also be stored in a computer-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 computer-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 computer program 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 changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (11)

1. A method for processing antenna signals, the method comprising:
the real-time cooperation hub RHUB receives frequency domain digital signals sent by a plurality of RRUs;
the RHUB combines frequency domain digital signals sent by a plurality of RRUs, wherein the frequency domain digital signal sent by each RRU comprises frequency domain digital signals of a plurality of channels; the frequency domain digital signal which is sent by each RRU and comprises a plurality of channels is a compressed signal;
the method further comprises the following steps: and before combining the frequency domain digital signals in the plurality of RRUs, the RHUB decompresses the compressed frequency domain digital signals which are sent by each RRU and comprise the plurality of channels.
2. The method of claim 1, further comprising:
when the RRU cannot support the conversion of the time domain digital signals into frequency domain digital signals, the RHUB receives time domain compressed digital signals sent by the RRUs;
decompressing the time domain compressed digital signals sent by the plurality of RRUs;
converting the decompressed time domain compressed digital signals in each channel of each RRU into frequency domain digital signals;
and combining the frequency domain digital signals.
3. The method of claim 1 wherein the RHUB is a first RHUB and the combined frequency domain digital signal is a first frequency domain digital signal;
the method further comprises the following steps:
and the first RHUB sends the first frequency domain digital signal to a second cascaded RHUB or a baseband unit (BBU).
4. The method of claim 1 wherein the RHUB is a first RHUB, and wherein the RHUB compresses the combined frequency domain digital signal into a first frequency domain digital signal;
the method further comprises the following steps:
the first RHUB receives a second frequency domain digital signal sent by a second cascaded RHUB, and the second frequency domain digital signal comprises frequency domain digital signals of a plurality of channels in the RRU;
and the first RHUB combines the first frequency domain digital signal and the second frequency domain digital signal, and sends the combined frequency domain digital signal to a third RHUB cascaded with the first RHUB or a BBU.
5. The method of claim 1, wherein the RHUB combines the frequency domain digital signals of the plurality of channels in each RRU, specifically comprising:
the RHUB groups the RRUs according to channel combination requirements in each RRU;
and the RHUB combines the digital signals transmitted on all channels of the same antenna port corresponding to the RRUs in the same group.
6. A method for processing antenna signals, the method comprising:
the RRU converts the baseband digital sampling signal of each channel into a frequency domain digital signal;
transmitting frequency domain digital signals of a plurality of the channels to the RHUB; wherein, the frequency domain digital signal containing a plurality of channels transmitted to the RHUB is a compressed signal.
7. The method of claim 6, further comprising:
when the RRU cannot support the conversion of the time domain digital signal into the frequency domain digital signal, compressing the time domain digital signal by the RRU;
and transmitting the time domain compressed digital signal to the RHUB.
8. An apparatus for processing antenna signals, the apparatus comprising:
a memory for storing program instructions;
a processor for calling program instructions stored in said memory to execute the method of any one of claims 1 to 7 in accordance with the obtained program.
9. An apparatus for processing antenna signals, the apparatus comprising:
a receiving unit, configured to receive frequency domain digital signals sent by a plurality of RRUs;
a combining unit, configured to combine, by using an RHUB, frequency domain digital signals in multiple RRUs, where the frequency domain digital signal sent by each RRU includes frequency domain digital signals of multiple channels; the frequency domain digital signal which is sent by each RRU and contains a plurality of channels and received by the receiving unit is a compressed signal; the device also includes: and before combining the frequency domain digital signals in the plurality of RRUs, the RHUB decompresses the compressed frequency domain digital signals which are sent by each RRU and comprise the plurality of channels.
10. An apparatus for processing antenna signals, the apparatus comprising:
the conversion unit is used for converting the baseband digital sampling signal of each channel into a frequency domain digital signal;
a transmitting unit, configured to transmit frequency domain digital signals of a plurality of channels to a RHUB; the frequency domain digital signal containing a plurality of channels sent to the RHUB by the sending unit is a compressed signal.
11. A computer storage medium having stored thereon computer-executable instructions for causing a computer to perform the method of any one of claims 1 to 7.
CN201811234745.9A 2018-10-23 2018-10-23 Antenna signal processing method and device Pending CN111093293A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112738648A (en) * 2020-11-02 2021-04-30 杭州电子科技大学 Distributed underground leather base station system based on centralized power supply
CN113452789A (en) * 2021-06-29 2021-09-28 中信科移动通信技术股份有限公司 Frequency domain combining system and frequency domain combining method for forward interface
WO2022021436A1 (en) * 2020-07-31 2022-02-03 华为技术有限公司 Radar signal processing apparatus and method, radar system and mobile platform
CN114679731A (en) * 2022-03-30 2022-06-28 中国联合网络通信集团有限公司 Data conversion method and device, computer readable storage medium and convergence unit
WO2022143317A1 (en) * 2020-12-29 2022-07-07 华为技术有限公司 Positioning method and device thereof
CN115001925A (en) * 2022-07-01 2022-09-02 白盒子(上海)微电子科技有限公司 MIMO signal demodulation method under radio frequency combining
CN116248144A (en) * 2022-12-30 2023-06-09 中国联合网络通信集团有限公司 Communication equipment, communication equipment performance tuning method and device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101350647A (en) * 2007-07-16 2009-01-21 大唐移动通信设备有限公司 Method and system for processing multi-antenna signal
CN103475613A (en) * 2012-06-06 2013-12-25 中兴通讯股份有限公司 Signal sending and receiving method and relevant equipment
WO2014008775A1 (en) * 2012-07-11 2014-01-16 华为技术有限公司 Data transmission method and system
CN103546402A (en) * 2012-07-11 2014-01-29 华为技术有限公司 Signal sending method, device and system
CN104980382A (en) * 2015-06-29 2015-10-14 上海华为技术有限公司 Data processing method and apparatus of multiple cell-shared radio remote units (RRU)
WO2016099748A1 (en) * 2014-12-19 2016-06-23 Intel IP Corporation Remote radio unit and baseband unit for asymetric radio area network channel processing

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101350647A (en) * 2007-07-16 2009-01-21 大唐移动通信设备有限公司 Method and system for processing multi-antenna signal
CN101350647B (en) * 2007-07-16 2013-04-03 电信科学技术研究院 Method and system for processing multi-antenna signal
CN103475613A (en) * 2012-06-06 2013-12-25 中兴通讯股份有限公司 Signal sending and receiving method and relevant equipment
WO2014008775A1 (en) * 2012-07-11 2014-01-16 华为技术有限公司 Data transmission method and system
CN103546402A (en) * 2012-07-11 2014-01-29 华为技术有限公司 Signal sending method, device and system
WO2016099748A1 (en) * 2014-12-19 2016-06-23 Intel IP Corporation Remote radio unit and baseband unit for asymetric radio area network channel processing
CN104980382A (en) * 2015-06-29 2015-10-14 上海华为技术有限公司 Data processing method and apparatus of multiple cell-shared radio remote units (RRU)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022021436A1 (en) * 2020-07-31 2022-02-03 华为技术有限公司 Radar signal processing apparatus and method, radar system and mobile platform
CN112738648A (en) * 2020-11-02 2021-04-30 杭州电子科技大学 Distributed underground leather base station system based on centralized power supply
WO2022143317A1 (en) * 2020-12-29 2022-07-07 华为技术有限公司 Positioning method and device thereof
CN113452789A (en) * 2021-06-29 2021-09-28 中信科移动通信技术股份有限公司 Frequency domain combining system and frequency domain combining method for forward interface
CN113452789B (en) * 2021-06-29 2022-07-01 中信科移动通信技术股份有限公司 Frequency domain combining system and frequency domain combining method for forward interface
CN114679731A (en) * 2022-03-30 2022-06-28 中国联合网络通信集团有限公司 Data conversion method and device, computer readable storage medium and convergence unit
CN115001925A (en) * 2022-07-01 2022-09-02 白盒子(上海)微电子科技有限公司 MIMO signal demodulation method under radio frequency combining
CN115001925B (en) * 2022-07-01 2024-03-19 白盒子(上海)微电子科技有限公司 MIMO signal demodulation method under radio frequency combination
CN116248144A (en) * 2022-12-30 2023-06-09 中国联合网络通信集团有限公司 Communication equipment, communication equipment performance tuning method and device

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