CN106413115A - Wireless communication base station, radio signal processing method and device - Google Patents
Wireless communication base station, radio signal processing method and device Download PDFInfo
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- 230000005540 biological transmission Effects 0.000 claims abstract description 44
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- 238000012545 processing Methods 0.000 claims abstract description 23
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
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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
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Abstract
The invention provides a wireless communication base station, which comprises an unlicensed band RF front-end unit, a WiFi baseband unit, a channel mapping unit and an LTE baseband unit, wherein the unlicensed band RF front-end unit is used for receiving various of WiFi radio signals, and transmitting an LTE radio signal based on an available channel; the WiFi baseband unit is used for measuring received signal intensities of the WiFi radio signals, and determining the available channel; the channel mapping unit is used for converting WiFi channel transmission corresponding to the available channel into LTE channel transmission; and the LTE baseband unit is used for processing a radio signal to be transmitted according to an LTE protocol and the LTE channel transmission, so as to generate the LTE radio signal. Through processing the radio signal by means of the LTE baseband unit, the LTE radio signal is generated, and the LTE radio signal can be transmitted by the unlicensed band RF front-end unit via the available channel, so that the signal transmitted in an unlicensed band can achieve high-quality performance transmission.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a wireless communication base station, a method and an apparatus for processing a radio signal.
Background
WiFi (Wireless Fidelity), a generic term for the 802.11 series of technologies developed by the International electrotechnical Commission IEEE, such as 802.11a/g/n/ac, etc. WiFi is primarily used for local wireless communication, generally with relatively small coverage, and is a simple and relatively low-cost means of wireless communication.
WiFi is directed towards end users and uses Unlicensed Band (Unlicensed Band), e.g., the 2.4GHz communication frequency of the first generation, and the 5GHz communication frequency that is widely used at the present stage. Wherein, 5GHz communication frequency generally refers to each frequency band (4.9GHz to 5.9GHz) around 5 GHz. Because the 5GHz has the characteristics of wide available frequency band, continuous frequency spectrum and less interference sources, the most advanced 802.11ac technology can use 160MHz bandwidth communication at the 5GHz so as to achieve the air interface transmission rate close to 1 Gbps.
The wireless communication base station is generally provided with WiFi functionality, and is particularly a small wireless communication base station. However, due to the limitation of the WiFi communication protocol itself, in the case of many users, the WiFi signal transmission also has the defect of poor transmission performance.
Disclosure of Invention
The invention provides a wireless communication base station, a wireless signal processing method and a wireless signal processing device, which are used for overcoming the defect of poor transmission performance of WiFi signal transmission under the condition of more users.
A first aspect of the present invention provides a wireless communication base station, including: the system comprises an unauthorized frequency band radio frequency front end unit, a WiFi baseband unit, a channel mapping unit and an LTE baseband unit;
the unauthorized frequency band radio frequency front end unit is respectively connected with the WiFi baseband unit and the LTE baseband unit;
the WiFi baseband unit is connected with the LTE baseband unit through a channel mapping unit;
wherein,
the unlicensed frequency band radio frequency front end unit is used for receiving each WiFi radio signal and sending an LTE radio signal according to an available channel;
the WiFi baseband unit is used for measuring the strength of each received signal of each WiFi radio signal and determining the available channel;
the channel mapping unit is used for converting WiFi channel transmission corresponding to the available channels into LTE channel transmission;
the LTE baseband unit is used for processing a radio signal to be transmitted according to an LTE protocol and the LTE channel transmission so as to generate the LTE radio signal.
With reference to the first aspect, in a first implementable manner, the unlicensed frequency band radio frequency front-end unit specifically includes:
and the WiFi unlicensed frequency band radio frequency front-end unit.
With reference to the first aspect, in a second implementable manner, the WiFi baseband unit specifically includes: a channel measurement subunit and a channel selection subunit; the unauthorized frequency band radio frequency front end unit, the channel measuring sub-unit, the channel selecting sub-unit and the channel mapping unit are sequentially connected;
wherein,
the channel measuring subunit is used for measuring the strength of each received signal of each WiFi radio signal;
and the channel selection subunit is configured to determine the available channel according to the received signal strength of each WiFi radio signal measured by the channel measurement subunit.
With reference to the second implementable manner of the first aspect, in a third implementable manner, the unlicensed frequency band radio frequency front-end unit specifically includes: and the LTE unlicensed frequency band radio frequency front-end unit.
With reference to the third implementable manner of the first aspect, in a fourth implementable manner, the base station further comprises: a channel correction unit;
the channel correction unit is respectively connected with the channel measurement subunit and the channel selection subunit;
wherein,
the channel correction unit is used for correcting the signal intensity difference between the WiFi radio frequency link and the LTE radio frequency link.
With reference to the fourth implementable manner of the first aspect, in a fifth implementable manner, the channel modification unit is specifically configured to:
and compensating the strength of the radio signal to be transmitted according to the signal strength difference.
With reference to the third implementable manner of the first aspect, in a sixth implementable manner, the base station further comprises: a channel correction unit and an LTE channel selection unit;
the channel measuring sub-unit is also connected with the channel mapping unit; the channel correction unit is connected with the channel mapping unit; the LTE channel selection unit is respectively connected with the channel mapping unit, the channel correction unit and the LTE baseband unit;
wherein,
the channel mapping unit is further configured to map the received signal strengths to LTE received signal strengths;
the channel correction unit is used for correcting the available channel and the received signal strength of each LTE according to the signal strength difference between the WiFi radio frequency link and the LTE radio frequency link;
the LTE channel selecting unit is configured to select an LTE available channel according to the corrected available channel and the corrected LTE received signal strengths;
the LTE unlicensed frequency band radio frequency front-end unit is specifically configured to: transmitting the LTE radio signal according to the LTE available channel.
A second aspect of the present invention provides a radio signal processing method including:
receiving each WiFi radio signal by an unauthorized frequency band radio frequency front end unit;
the WiFi baseband unit measures the strength of each received signal of each WiFi radio signal and determines the available channel;
the channel mapping unit converts the WiFi channel transmission corresponding to the available channel into LTE channel transmission;
the LTE baseband unit processes a radio signal to be transmitted according to an LTE protocol and the LTE channel transmission so as to generate an LTE radio signal;
and the radio frequency front end unit of the unlicensed frequency band transmits the LTE radio signal according to an available channel.
With reference to the second aspect, in a first implementable manner, the measuring, by the WiFi baseband unit, each received signal strength of each WiFi radio signal and determining the available channel specifically include:
the channel measuring subunit measures the strength of each received signal of each WiFi radio signal;
and the channel selection subunit determines the available channel according to the received signal strength of each WiFi radio signal measured by the channel measurement subunit.
With reference to the second aspect or the first implementable manner of the second aspect, in a second implementable manner, before the processing, by the LTE baseband unit, the radio signal to be transmitted according to an LTE protocol and the LTE channel transmission to generate an LTE radio signal, the method further includes: the channel correction unit corrects the signal intensity difference between the WiFi radio frequency link and the LTE radio frequency link.
With reference to the second implementable manner of the second aspect, in a third implementable manner, the modifying, by the channel modifying unit, a signal strength difference between the WiFi radio frequency link and the LTE radio frequency link specifically includes:
and compensating the received signal strength of the radio signal to be transmitted according to the signal strength difference.
With reference to the second implementable manner of the second aspect, in a fourth implementable manner, before the processing, by the LTE baseband unit, the radio signal to be transmitted according to an LTE protocol and the LTE channel transmission to generate an LTE radio signal, the method further includes:
the channel mapping unit maps the received signal strength into the received signal strength of each LTE;
the channel correction unit corrects the available channel and the received signal strength of each LTE according to the signal strength difference between the WiFi radio frequency link and the LTE radio frequency link;
the LTE channel selection unit selects an LTE available channel according to the corrected available channel and the corrected intensity of each LTE receiving signal;
the unlicensed frequency band radio frequency front-end unit sends the LTE radio signal according to an available channel, and specifically includes: transmitting the LTE radio signal according to the LTE available channel.
A third aspect of the present invention provides a radio signal processing apparatus comprising:
a memory for storing information including program routines;
a processor coupled to the memory for controlling execution of the program routines, comprising:
receiving each WiFi radio signal;
measuring each received signal strength of the WiFi radio signals and determining the available channel;
converting WiFi channel transmission corresponding to the available channels into LTE channel transmission;
processing a radio signal to be transmitted according to an LTE protocol and the LTE channel transmission to generate an LTE radio signal;
transmitting the LTE radio signal according to an available channel.
With reference to the third aspect, in a first implementable manner, the processor, for controlling execution of the program routine, further comprises:
the measuring the received signal strength of each WiFi radio signal and determining the available channel specifically includes:
measuring the received signal strength of each WiFi radio signal;
and determining the available channel according to the received signal strength of each WiFi radio signal measured by the channel measuring subunit.
With reference to the second aspect or with reference to the first implementable manner of the second aspect, in a second implementable manner, the processor, for controlling execution of the program routine, further comprises:
and correcting the signal intensity difference between the WiFi radio frequency link and the LTE radio frequency link.
With reference to the second implementable manner of the third aspect, in a third implementable manner, the processor, for controlling execution of the program routine, further comprises:
correcting the signal intensity difference between the WiFi radio frequency link and the LTE radio frequency link, specifically comprising:
and compensating the received signal strength of the radio signal to be transmitted according to the signal strength difference.
With reference to the second implementable manner of the third aspect, in a fourth implementable manner, the processor, for controlling execution of the program routine, further comprises:
before the processing the radio signal to be transmitted according to the LTE protocol and the LTE channel transmission to generate an LTE radio signal, the method further includes:
mapping the received signal strengths to LTE received signal strengths;
correcting the available channel and the intensity of each LTE receiving signal according to the signal intensity difference between the WiFi radio frequency link and the LTE radio frequency link;
selecting an LTE available channel according to the corrected available channel and the corrected intensity of each LTE receiving signal;
transmitting the LTE radio signal according to an available channel, specifically including: transmitting the LTE radio signal according to the LTE available channel.
According to the invention, the LTE baseband unit is used for processing the radio signal to generate the LTE radio signal, and the available channel is used for transmitting the LTE radio signal through the unlicensed frequency band front-end unit, so that the signal transmitted in the unlicensed frequency band can realize high-quality performance transmission.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a wireless communication base station according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a conventional wireless base station;
fig. 3 is a schematic structural diagram of a second wireless communication base station according to the present invention;
fig. 4 is a schematic structural diagram of a third embodiment of a wireless communication base station according to the present invention;
fig. 5 is a schematic structural diagram of a fourth embodiment of a wireless communication base station according to the present invention;
fig. 6 is a schematic structural diagram of a fifth embodiment of a wireless communication base station according to the present invention;
fig. 7 is a flowchart of a radio signal processing method according to a first embodiment of the present invention;
fig. 8 is a schematic structural diagram of a radio signal processing apparatus according to a first embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of a wireless communication base station according to a first embodiment of the present invention. As shown in fig. 1, the wireless communication base station of the present embodiment may include:
an unlicensed frequency band radio frequency front end unit 101, a WiFi baseband unit 102, a channel mapping unit 103, and an LTE baseband unit 104;
the unlicensed frequency band radio frequency front end unit 101 is connected to the WiFi baseband unit 102 and the LTE baseband unit 103 respectively;
the WiFi baseband unit 102 is connected to the LTE baseband unit 104 through a channel mapping unit 103.
Wherein,
the unlicensed frequency band radio frequency front-end unit 101 is configured to receive each WiFi radio signal and send an LTE radio signal according to an available channel;
the WiFi baseband unit 102 is configured to measure each received signal strength of each WiFi radio signal and determine the available channel;
the channel mapping unit 103 is configured to convert WiFi channel transmission corresponding to the available channel into LTE channel transmission;
the LTE baseband unit 104 is configured to process a radio signal to be transmitted according to an LTE protocol and the LTE channel transmission, so as to generate the LTE radio signal.
Specifically, in an existing base station device, especially a small cell device, LTE and WiFi functions are generally provided, where an LTE system is applied to a licensed frequency band and a WiFi system is applied to an unlicensed frequency band. As shown in fig. 2, the two systems are independent of each other. The WiFi device has functions of channel measurement and channel selection in the baseband part due to the characteristic of supporting dynamic frequency selection. The LTE device has only a common signal processing unit.
When the technical scheme of this embodiment is implemented, the purpose of using the LTE system in an unlicensed frequency band may be implemented by modifying the existing wireless communication base station, that is, by adding the channel mapping unit 103 between the WiFi baseband unit 102 and the LTE baseband unit 104.
In addition, compared with a WiFi system, the 4G LTE system has centralized scheduling, HARQ and other characteristics can ensure high-quality performance transmission under the condition of multiple users, and the system has a safer bidirectional authentication system. By using the LTE system in the unlicensed frequency band, the signals transmitted in the unlicensed frequency band can be transmitted with high quality, and the characteristic of large bandwidth of the 5GHz frequency band can be fully exerted.
More specifically, the added Channel mapping unit 103 mainly completes the matching between the WiFi Channel Number and the LTE EARFCN (E-UTRAAbsolute Radio Frequency Channel Number, E-UTRA absolute Radio Channel Number) parameter, which is specifically as follows:
the WiFi channel center frequency point (MHz) ═ channel start frequency point +5x channel number, for example, in a 5GHz band, the channel start frequency point is 5000MHz, and when the channel number is 36, the WiFi channel center frequency point is 5000+5x36 ═ 5180MHz, and when the channel number is 40, the WiFi channel center frequency point is 5000+5x40 ═ 5200 MHz.
The LTE system uses another way to record frequency, and first defines the EARFCN table in the standard:
the specific frequency band corresponding formula is as follows: FDL — low +0.1 (NDL-NOffs-DL), where NDL is the EARFCN value for the downlink.
The frequency indication methods of the two systems are different, and a matching table of corresponding LTE EARFCN values under different WiFi channel values needs to be generated.
Assume that the WiFi channel is number 36, corresponding to a frequency of 5180 MHz.
Then 5180MHz ═ 5150+0.1 ═ NDL-46790 (NDL-47090). In this case, the WiFi channel 36 is matched with LTEEARFCN 47090.
Assume that the WiFi channel is number 40, corresponding to a frequency of 5200 MHz.
Then 5200MHz ═ 5150+0.1 ═ NDL-46790, and NDL ═ 47290. In this case, the WiFi channel 40 is matched LTEEARFCN 47290.
On the basis of the foregoing embodiment, further, the unlicensed frequency band radio frequency front-end unit 101 specifically includes:
a WiFi unlicensed band radio frequency front end unit 101 a.
Specifically, the unlicensed band rf front-end unit 101 may correspond to a WiFi unlicensed band rf front-end unit 101a of an existing base station device.
On the basis of the foregoing embodiment, further, the WiFi baseband unit 102 is specifically configured to: determining the available channels according to the received signal strengths.
Specifically, the WiFi baseband unit 102 may measure radio signals of which frequencies already exist in the current environment and their corresponding signal strengths, and may select an available channel from the unlicensed frequency band according to the measured strengths. For example, a channel that has not been used may be selected from the unlicensed band, or a channel with weak signal strength may be selected as an available channel to avoid interference between signals.
Fig. 3 is a schematic structural diagram of a second wireless communication base station according to the embodiment of the invention. As shown in fig. 3, based on the foregoing embodiment, further, the WiFi baseband unit 102 specifically includes: a channel measurement subunit 102a and a channel selection subunit 102 b; the unlicensed frequency band radio frequency front end unit 101, the channel measurement sub-unit 102a, the channel selection sub-unit 102b, and the channel mapping unit 103 are connected in sequence;
wherein,
the channel measuring subunit 102a is configured to measure each received signal strength of each WiFi radio signal;
the channel selecting subunit 102b is configured to determine the available channel according to the received signal strengths of the WiFi radio signals measured by the channel measuring subunit.
It can be understood by those skilled in the art that the second embodiment is a more detailed scheme of the first embodiment.
Fig. 4 is a schematic structural diagram of a wireless communication base station according to a third embodiment of the present invention. As shown in fig. 4, based on the above embodiment, further, the unlicensed frequency band radio frequency front-end unit 101 specifically includes: an LTE unlicensed band radio frequency front-end unit 101 b;
the base station further comprises: a channel correction unit 105;
the channel modification unit 105 is connected to the channel measurement subunit 102a and the channel selection subunit 102b, respectively;
wherein,
the channel correction unit is used for correcting the signal intensity difference between the WiFi radio frequency link and the LTE radio frequency link.
Specifically, the channel modification unit 105 is specifically configured to:
and compensating the strength of the radio signal to be transmitted according to the signal strength difference.
The LTE unlicensed band rf front-end unit 101b is configured to receive and transmit LTE signals at a radio frequency front end of an unlicensed band (5GHz), and the WiFi system only receives the signals. After receiving the radio signal through the WiFi unlicensed band radio frequency front-end unit 101a at 5GHz, the channel measurement subunit 102a measures the received signal strength under different WiFi channels, for example, the received strength under the channel 36 is-72 dBm/20MHz, and the received strength under the channel 40 is-80 dBm/20 MHz. Since the LTE unlicensed band rf front-end unit 101b and the WiFi unlicensed band rf front-end unit 101a have different feed loss and antenna gain, the measured received signal strength needs to be corrected by the channel correction unit 105, which will be described later. And selecting one available channel from the plurality of available channels according to the corrected received signal strength by using a channel selection algorithm built in the WiFi system. And finally, converting the available channel into the channel number of the LTE through the channel mapping unit 103. The LTE baseband sends the signal to the LTE unlicensed frequency band radio frequency front-end unit 101b to send out the LTE signal after signal processing according to the selected channel, thereby realizing the receiving and sending of the LTE signal in the unlicensed frequency band and supporting the requirement of dynamic frequency selection of the unlicensed frequency band.
More specifically, the newly added channel correction unit 105 mainly corrects the case where the LTE rf link and the WiFi rf link do not match.
The main mismatch cases are the following:
the antenna positions are different: when one of the WiFi antenna and the LTE antenna is built-in, and the other one of the WiFi antenna and the LTE antenna is arranged externally, due to the fact that the machine body has penetration loss, the loss needs to be compensated.
For example, the WiFi antenna is built-in, and the LTE antenna is external, so the penetration loss of the WiFi antenna is XdB (x >0) compared with the LTE antenna; when the WiFi antenna is external and the LTE antenna is internal, the penetration loss of the WiFi antenna is XdB (x <0) compared to the LTE antenna.
The antenna gains (including the feed losses) are different: assuming that the gain of the WiFi antenna is a dB and the gain of the LTE antenna is BdB, the difference also needs to be compensated.
Spatial signal strength-X + a-WiFi received signal strength.
Spatial signal strength + B-LTE received signal strength.
Compensated LTE receive signal strength + WiFi receive signal strength + X-a + B.
Fig. 5 is a schematic structural diagram of a fourth embodiment of a wireless communication base station according to the present invention. As shown in fig. 5, based on the foregoing embodiment, further, the WiFi baseband unit 102 specifically includes: a channel measurement subunit 102a and a channel selection subunit 102 b; the channel measurement subunit 102a is connected to the unlicensed band radio frequency front-end unit 101, the channel selection subunit 102b, and the channel mapping unit 103, respectively; the channel selection subunit 102b is further connected to the channel mapping unit 103;
wherein,
the channel measuring subunit 102a is configured to measure each received signal strength of each WiFi radio signal;
the channel selection subunit 102b is configured to determine the available channel;
the channel mapping unit 103 is further configured to map the received signal strengths to LTE received signal strengths.
Specifically, compared with the second embodiment, the channel selection subunit 102b is further connected to the channel mapping unit 103 in this embodiment.
Fig. 6 is a schematic structural diagram of a fifth embodiment of a wireless communication base station according to the present invention. As shown in fig. 6, based on the above embodiment, further, the unlicensed frequency band radio frequency front-end unit 101 specifically includes: an LTE unlicensed band radio frequency front-end unit 101 b;
the base station further comprises: channel correction section 105, LTE channel selection section 106;
the LTE channel selecting unit 106 is connected to the channel mapping unit 103, the channel modifying unit 105, and the LTE baseband unit 104, respectively;
wherein,
the channel correction unit 105 is configured to correct the available channel and the received signal strength of each LTE according to a signal strength difference between the WiFi radio frequency link and the LTE radio frequency link;
the LTE channel selecting unit 106 is configured to select an LTE available channel according to the corrected available channel and the corrected LTE received signal strengths;
the LTE unlicensed band radio frequency front-end unit 101b is specifically configured to: transmitting the LTE radio signal according to the LTE available channel.
Fig. 7 is a flowchart of a radio signal processing method according to a first embodiment of the present invention. As shown in fig. 7, the method of this embodiment may include:
step 701, the unlicensed band radio frequency front end unit receives each WiFi radio signal.
Step 702, the WiFi baseband unit measures each received signal strength of each WiFi radio signal and determines the available channel.
Step 703, the channel mapping unit converts the WiFi channel transmission corresponding to the available channel into the LTE channel transmission.
Step 704, the LTE baseband unit processes the radio signal to be transmitted according to the LTE protocol and the LTE channel transmission to generate an LTE radio signal.
Step 705, the unlicensed band radio frequency front-end unit sends the LTE radio signal according to an available channel.
The first embodiment of the wireless communication base station may be configured to execute the technical solution of the method embodiment shown in fig. 7, and the implementation principle and the technical effect are similar, which are not described herein again.
On the basis of the foregoing embodiment, further, the measuring, by the WiFi baseband unit, each received signal strength of each WiFi radio signal and determining the available channel specifically include:
the channel measuring subunit measures the strength of each received signal of each WiFi radio signal;
and the channel selection subunit determines the available channel according to the received signal strength of each WiFi radio signal measured by the channel measurement subunit.
On the basis of the foregoing embodiment, further, the measuring, by the WiFi baseband unit, each received signal strength of each WiFi radio signal and determining the available channel specifically include:
before the channel measurement subunit measures that each WiFi radio processes a radio signal to be transmitted according to an LTE protocol and the LTE channel transmission in the LTE baseband unit to generate an LTE radio signal, the channel measurement subunit further includes: the channel correction unit corrects the signal intensity difference between the WiFi radio frequency link and the LTE radio frequency link.
On the basis of the foregoing embodiment, further, the measuring, by the WiFi baseband unit, each received signal strength of each WiFi radio signal and determining the available channel specifically include:
the channel measurement subunit measures the signal strength difference between the WiFi radio frequency link and the LTE radio frequency link corrected by the channel correction unit, and specifically includes:
and compensating the received signal strength of the radio signal to be transmitted according to the signal strength difference.
On the basis of the foregoing embodiment, further, the measuring, by the WiFi baseband unit, each received signal strength of each WiFi radio signal and determining the available channel specifically include:
before the channel measurement subunit measures that each WiFi radio processes a radio signal to be transmitted according to an LTE protocol and the LTE channel transmission in the LTE baseband unit to generate an LTE radio signal, the channel measurement subunit further includes:
the channel mapping unit maps the received signal strength into the received signal strength of each LTE;
the channel correction unit corrects the available channel and the received signal strength of each LTE according to the signal strength difference between the WiFi radio frequency link and the LTE radio frequency link;
the LTE channel selection unit selects an LTE available channel according to the corrected available channel and the corrected intensity of each LTE receiving signal;
the unlicensed frequency band radio frequency front-end unit sends the LTE radio signal according to an available channel, and specifically includes: transmitting the LTE radio signal according to the LTE available channel.
Fig. 8 is a schematic structural diagram of a radio signal processing apparatus according to a first embodiment of the invention. As shown in fig. 8, the radio signal processing apparatus of the present embodiment includes: memory 801, processor 802.
A memory 801 for storing information including program routines;
a processor 802, coupled to the memory 801, for controlling the execution of the program routines, including in particular:
receiving each WiFi radio signal;
measuring each received signal strength of the WiFi radio signals and determining the available channel;
converting WiFi channel transmission corresponding to the available channels into LTE channel transmission;
processing a radio signal to be transmitted according to an LTE protocol and the LTE channel transmission to generate an LTE radio signal;
transmitting the LTE radio signal according to an available channel.
Specifically, in terms of hardware implementation, the processor 802 may be a Central Processing Unit (CPU) or a single chip.
That is, the processor 802 is configured to execute the technical solution executed by the corresponding apparatus in the first embodiment of the radio signal processing method.
The radio signal processing apparatus of this embodiment may be used to implement the technical solution of the method embodiment shown in fig. 7, and the implementation principle and technical effect are similar, which are not described herein again.
On the basis of the foregoing embodiment, further, the processor 802, configured to control execution of the program routine, further includes:
the measuring the received signal strength of each WiFi radio signal and determining the available channel specifically includes:
measuring the received signal strength of each WiFi radio signal;
and determining the available channel according to the received signal strength of each WiFi radio signal measured by the channel measuring subunit.
On the basis of the foregoing embodiment, further, the processor 802, configured to control execution of the program routine, further includes:
and correcting the signal intensity difference between the WiFi radio frequency link and the LTE radio frequency link.
On the basis of the foregoing embodiment, further, the processor 802, configured to control execution of the program routine, further includes:
correcting the signal intensity difference between the WiFi radio frequency link and the LTE radio frequency link, specifically comprising:
and compensating the received signal strength of the radio signal to be transmitted according to the signal strength difference.
On the basis of the foregoing embodiment, further, the processor 802, configured to control execution of the program routine, further includes:
before the processing the radio signal to be transmitted according to the LTE protocol and the LTE channel transmission to generate an LTE radio signal, the method further includes:
mapping the received signal strengths to LTE received signal strengths;
correcting the available channel and the intensity of each LTE receiving signal according to the signal intensity difference between the WiFi radio frequency link and the LTE radio frequency link;
selecting an LTE available channel according to the corrected available channel and the corrected intensity of each LTE receiving signal;
transmitting the LTE radio signal according to an available channel, specifically including: transmitting the LTE radio signal according to the LTE available channel.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on at least two network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A wireless communication base station, comprising:
the system comprises an unauthorized frequency band radio frequency front end unit, a WiFi baseband unit, a channel mapping unit and an LTE baseband unit;
the unauthorized frequency band radio frequency front end unit is respectively connected with the WiFi baseband unit and the LTE baseband unit;
the WiFi baseband unit is connected with the LTE baseband unit through a channel mapping unit;
wherein,
the unlicensed frequency band radio frequency front end unit is used for receiving each WiFi radio signal and sending an LTE radio signal according to an available channel;
the WiFi baseband unit is used for measuring the strength of each received signal of each WiFi radio signal and determining the available channel;
the channel mapping unit is used for converting WiFi channel transmission corresponding to the available channels into LTE channel transmission;
the LTE baseband unit is used for processing a radio signal to be transmitted according to an LTE protocol and the LTE channel transmission so as to generate the LTE radio signal.
2. The wireless communication base station according to claim 1, wherein the WiFi baseband unit specifically includes: a channel measurement subunit and a channel selection subunit; the unauthorized frequency band radio frequency front end unit, the channel measuring sub-unit, the channel selecting sub-unit and the channel mapping unit are sequentially connected;
wherein,
the channel measuring subunit is used for measuring the strength of each received signal of each WiFi radio signal;
and the channel selection subunit is configured to determine the available channel according to the received signal strength of each WiFi radio signal measured by the channel measurement subunit.
3. A radio signal processing method, comprising:
receiving each WiFi radio signal by an unauthorized frequency band radio frequency front end unit;
the WiFi baseband unit measures the strength of each received signal of each WiFi radio signal and determines the available channel;
the channel mapping unit converts the WiFi channel transmission corresponding to the available channel into LTE channel transmission;
the LTE baseband unit processes a radio signal to be transmitted according to an LTE protocol and the LTE channel transmission so as to generate an LTE radio signal;
and the radio frequency front end unit of the unlicensed frequency band transmits the LTE radio signal according to an available channel.
4. The method according to claim 3, wherein the WiFi baseband unit measures each received signal strength of the WiFi radio signals and determines the available channel, specifically comprising:
the channel measuring subunit measures the strength of each received signal of each WiFi radio signal;
and the channel selection subunit determines the available channel according to the received signal strength of each WiFi radio signal measured by the channel measurement subunit.
5. The method of claim 3 or 4, further comprising, before the LTE baseband unit processes the radio signal to be transmitted according to an LTE protocol and the LTE channel transmission to generate an LTE radio signal: the channel correction unit corrects the signal intensity difference between the WiFi radio frequency link and the LTE radio frequency link.
6. The method of claim 5, before the LTE baseband unit processes a radio signal to be transmitted according to an LTE protocol and the LTE channel transmission to generate an LTE radio signal, further comprising:
the channel mapping unit maps the received signal strength into the received signal strength of each LTE;
the channel correction unit corrects the available channel and the received signal strength of each LTE according to the signal strength difference between the WiFi radio frequency link and the LTE radio frequency link;
the LTE channel selection unit selects an LTE available channel according to the corrected available channel and the corrected intensity of each LTE receiving signal;
the unlicensed frequency band radio frequency front-end unit sends the LTE radio signal according to an available channel, and specifically includes: transmitting the LTE radio signal according to the LTE available channel.
7. A radio signal processing apparatus, comprising:
a memory for storing information including program routines;
a processor coupled to the memory for controlling execution of the program routines, comprising:
receiving each WiFi radio signal;
measuring each received signal strength of the WiFi radio signals and determining the available channel;
converting WiFi channel transmission corresponding to the available channels into LTE channel transmission;
processing a radio signal to be transmitted according to an LTE protocol and the LTE channel transmission to generate an LTE radio signal;
transmitting the LTE radio signal according to an available channel.
8. The apparatus of claim 7, wherein the processor, configured to control execution of the program routine, further comprises:
the measuring the received signal strength of each WiFi radio signal and determining the available channel specifically includes:
measuring the received signal strength of each WiFi radio signal;
and determining the available channel according to the received signal strength of each WiFi radio signal measured by the channel measuring subunit.
9. The apparatus of claim 7 or 8, wherein the processor, configured to control execution of the program routine, further comprises:
and correcting the signal intensity difference between the WiFi radio frequency link and the LTE radio frequency link.
10. The apparatus of claim 9, wherein the processor, configured to control execution of the program routine, further comprises:
correcting the signal intensity difference between the WiFi radio frequency link and the LTE radio frequency link, specifically comprising:
and compensating the received signal strength of the radio signal to be transmitted according to the signal strength difference.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610973191.9A CN106413115A (en) | 2016-11-07 | 2016-11-07 | Wireless communication base station, radio signal processing method and device |
| PCT/CN2017/109801 WO2018082708A1 (en) | 2016-11-07 | 2017-11-07 | Wireless communication base station, and radio signal processing method and apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610973191.9A CN106413115A (en) | 2016-11-07 | 2016-11-07 | Wireless communication base station, radio signal processing method and device |
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| CN201610973191.9A Pending CN106413115A (en) | 2016-11-07 | 2016-11-07 | Wireless communication base station, radio signal processing method and device |
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| WO (1) | WO2018082708A1 (en) |
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| CN111917434A (en) * | 2020-07-27 | 2020-11-10 | 深圳创维－Rgb电子有限公司 | Dual-frequency concurrent communication circuit, dual-frequency signal selection method, television and storage medium |
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| WO2018082708A1 (en) | 2018-05-11 |
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