CN109698735A - A kind of alien frequencies diversity data processing method and device - Google Patents
A kind of alien frequencies diversity data processing method and device Download PDFInfo
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- CN109698735A CN109698735A CN201710987026.3A CN201710987026A CN109698735A CN 109698735 A CN109698735 A CN 109698735A CN 201710987026 A CN201710987026 A CN 201710987026A CN 109698735 A CN109698735 A CN 109698735A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
- H04L1/0606—Space-frequency coding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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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
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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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
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0064—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with separate antennas for the more than one band
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- 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
- H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
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- 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
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- 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
- H04B7/12—Frequency diversity
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Abstract
The embodiment of the present application provides a kind of alien frequencies diversity data processing method, applied to the terminal device including at least two antennas, which comprises sends alien frequencies diversity reception request to the network equipment；At least two paths of data is received respectively by least two antenna, and at least two paths of data is the data that the network equipment is sent using at least two determining member carriers, and the frequency point of at least two member carrier is different；At least two antennas are distinguished into received data and carry out demodulation process, at least four circuit-switched datas after obtaining demodulation process；At least four circuit-switched datas are merged, the data after being merged.Disclosed herein as well is the devices of alien frequencies diversity reception corresponding with provided method simultaneously.The method that the embodiment of the present application passes through the data processing of alien frequencies diversity increases the signal-to-noise ratio for receiving data under the premise of not increasing antenna amount, has achieved the purpose that improve the quality for receiving data, has reduced production cost.
Description
Technical Field
The embodiment of the application relates to the field of wireless communication networks, in particular to a method and a device for processing pilot frequency diversity data.
Background
In the field of wireless communication, in the process of data transmission, loss occurs in received data due to changes in transmission media and transmission paths. To compensate for the loss of the received data and to increase the signal-to-noise ratio of the received data, diversity reception techniques are typically used to receive the data. The diversity reception technology is that a plurality of data carrying the same information are received through a plurality of channels, and because the transmission characteristics of the plurality of channels are different, the loss of the plurality of data is also different, and the terminal equipment can accurately recover the original data by using the information contained in the plurality of data, thereby greatly reducing the loss of the received data and improving the signal-to-noise ratio of the received data. In the prior art, terminal equipment mainly receives data by using a method of same-frequency diversity reception, as shown in fig. 1, network equipment modulates original data by using a frequency, and the modulated data is transmitted by a transmitter f1 after passing through a power amplifier. The terminal equipment receives the data f1 through the main diversity antenna, filters, amplifies and demodulates the two obtained data respectively to obtain data f1 'and data f 1', and combines the two demodulated data to obtain combined data. However, if higher data quality is to be obtained and the receiving capability of the device is to be increased, the number of antennas can be increased, but the number of antennas is greatly limited due to the limitation of the size of the terminal device, and increasing the number of antennas also causes an increase in cost.
Disclosure of Invention
The embodiment of the application provides a method and a device for processing pilot frequency diversity data, and aims to solve the technical problems that the number of antennas is limited and the production cost is increased due to the increase of the number of the antennas when the signal-to-noise ratio of received data is increased in the prior art.
Therefore, the embodiment of the application provides the following technical scheme:
in a first aspect of the embodiments of the present application, a method for processing pilot frequency diversity data is disclosed, which is applied to a terminal device supporting downlink carrier aggregation, where the terminal device includes at least two antennas, and the method includes:
sending a pilot frequency diversity receiving request to network equipment;
receiving at least two paths of data through the at least two antennas respectively, wherein the at least two paths of data are data sent by the network equipment by utilizing at least two determined component carriers, and the frequency points of the at least two component carriers are different;
demodulating data respectively received by at least two antennas to obtain at least four paths of demodulated data;
and combining the at least four paths of data to obtain combined data.
Optionally, the method further comprises:
after accessing a network or before sending a pilot frequency diversity reception request to network equipment, sending a report message to the network equipment;
receiving an acknowledgement message sent by the network device, where the acknowledgement message is used to indicate whether the network device supports a carrier aggregation technology;
the sending the pilot frequency diversity reception request to the network device includes:
and when the confirmation message indicates that the network equipment supports the carrier aggregation technology, sending an inter-frequency diversity reception request to the network equipment.
Optionally, the method further comprises:
judging whether the same-frequency diversity reception meets the service requirement;
the sending the pilot frequency diversity reception request to the network device includes:
and if the same-frequency diversity reception does not meet the service requirement, sending a different-frequency diversity reception request to the network equipment.
Optionally, the determining whether the intra-frequency diversity reception meets the service requirement includes:
judging whether the signal-to-noise ratio is greater than a first threshold value; and/or the presence of a gas in the gas,
judging whether the throughput is greater than a second threshold value; and/or the presence of a gas in the gas,
and judging whether the data downloading rate is greater than a third threshold value.
Optionally, the at least two component carriers belong to the same frequency band, or the at least two component carriers belong to different frequency bands.
In a second aspect of the embodiments of the present application, a method for processing pilot frequency diversity data is disclosed, which is applied to a network device supporting downlink carrier aggregation, and the method includes:
receiving a pilot frequency diversity receiving request sent by terminal equipment supporting downlink carrier aggregation;
responding to the pilot frequency diversity reception request, determining at least two component carriers from a component carrier set, and transmitting data by using the at least two component carriers; the frequency points of the at least two member carriers are different.
Optionally, the determining at least two component carriers from the component carrier set includes:
determining at least two member carriers from the member carriers in the same frequency band; or,
at least two component carriers are determined from component carriers of different frequency bands.
Optionally, the method further comprises:
receiving reported information sent by terminal equipment, wherein the reported information is used for indicating that the terminal equipment supports a carrier aggregation technology;
and sending a confirmation message to the terminal equipment, wherein the confirmation message is used for indicating whether the network equipment supports the carrier aggregation technology, so that the terminal equipment can judge whether to send a pilot frequency diversity receiving request according to the confirmation message.
In a third aspect of the embodiments of the present application, a device for pilot frequency diversity reception is disclosed, which is applied to a terminal device supporting downlink carrier aggregation, where the terminal device includes at least two antennas, and the device includes:
a sending unit, configured to send a pilot frequency diversity reception request to a network device;
the receiving unit is used for respectively receiving at least two paths of data through the at least two antennas, wherein the at least two paths of data are data sent by the network equipment by utilizing at least two determined component carriers, and the frequency points of the at least two component carriers are different;
the demodulation unit is used for demodulating the data respectively received by the at least two antennas to obtain at least four paths of demodulated data;
and the merging unit is used for merging the at least four paths of data to obtain merged data.
In a fourth aspect of the embodiments of the present application, a device for processing pilot frequency diversity data is disclosed, which is applied to a network device supporting downlink carrier aggregation, and the device includes:
a receiving unit, configured to receive a pilot frequency diversity reception request sent by a network device supporting downlink carrier aggregation;
a transmission unit: responding to the pilot frequency diversity reception request, determining at least two component carriers from a component carrier set, and transmitting data by using the at least two component carriers; the frequency points of the at least two member carriers are different.
In a fifth aspect of the embodiments of the present application, an apparatus for processing inter-frequency diversity data is disclosed, which includes a memory, and one or more programs, where the one or more programs are stored in the memory, and the one or more programs configured to be executed by the one or more processors include instructions for:
sending a pilot frequency diversity receiving request to network equipment;
receiving at least two paths of data through the at least two antennas respectively, wherein the at least two paths of data are data sent by the network equipment by utilizing at least two determined component carriers, and the frequency points of the at least two component carriers are different;
demodulating data respectively received by at least two antennas to obtain at least four paths of demodulated data;
and combining the at least four paths of data to obtain combined data.
In a sixth aspect of the embodiments of the present application, an apparatus for inter-frequency diversity reception is disclosed, which includes a memory, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the one or more processors, and the one or more programs include instructions for:
receiving a pilot frequency diversity receiving request sent by terminal equipment supporting downlink carrier aggregation;
responding to the pilot frequency diversity reception request, determining at least two component carriers from a component carrier set, and transmitting data by using the at least two component carriers; the frequency points of the at least two member carriers are different.
In a seventh aspect of the embodiments of the present application, a machine-readable medium is disclosed, on which instructions are stored, which when executed by one or more processors, cause an apparatus to perform one or more of the inter-frequency diversity data processing methods described in the first aspect of the embodiments of the present application.
In an eighth aspect of the embodiments of the present application, a machine-readable medium is disclosed, on which instructions are stored, which when executed by one or more processors, cause an apparatus to perform the inter-frequency diversity data processing method described in one or more of the second aspect of the embodiments of the present application.
One aspect of the embodiment of the application can achieve the following beneficial effects: by the method for processing the pilot frequency diversity data, the terminal equipment receives the multi-channel data on the premise of not increasing the number of antennas, the signal-to-noise ratio of the data obtained by combining the multi-channel data is improved, the quality of the received data is improved, and the production cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application 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 described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a diagram of a prior art common-frequency diversity receiving method;
fig. 2 is a schematic flowchart of a method for processing pilot frequency diversity data according to a first embodiment of the present disclosure;
fig. 3 is a schematic view of a process of sending reported information by a terminal device according to an embodiment of the present application;
fig. 4 is a schematic diagram of pilot frequency diversity reception data of a terminal device according to an embodiment of the present application
Fig. 5 is a flowchart illustrating a second embodiment of a method for processing pilot frequency diversity data according to an embodiment of the present application;
fig. 6 is a schematic diagram of data transmission by a network device according to an embodiment of the present application;
fig. 7 is a schematic diagram illustrating interaction between a terminal device and a network device according to an embodiment of the present application;
fig. 8 is a schematic diagram of a first embodiment of an inter-frequency diversity data processing apparatus according to an embodiment of the present application;
fig. 9 is a schematic diagram of a second embodiment of an inter-frequency diversity data processing apparatus according to an embodiment of the present application;
fig. 10 is a schematic diagram of a third embodiment of an inter-frequency diversity data processing apparatus according to an embodiment of the present application;
fig. 11 is a schematic diagram of a fourth embodiment of an inter-frequency diversity data processing apparatus according to an embodiment of the present application.
Detailed Description
In practical application, in order to improve the quality of data received by the terminal device and increase the signal-to-noise ratio of the received data, multiple paths of data need to be obtained, and the signal-to-noise ratio of the data obtained by combining the multiple paths of data is improved compared with the signal-to-noise ratio of the data obtained by combining the two paths of data. If multi-path data is obtained, the number of antennas needs to be increased, but the number of antennas is greatly limited due to the limitation of the volume of the terminal equipment, and the increase of the number of antennas also causes the increase of cost.
Based on this, embodiments of the present application provide a method and an apparatus for processing data of pilot frequency diversity, which achieve obtaining multiple channels of data at a terminal device by using pilot frequency diversity without increasing the number of antennas, improve the quality of received data, increase the signal-to-noise ratio of the received data, and reduce the production cost.
In order to make those skilled in the art better understand the technical solutions in the present application, the following description of the technical solutions in the embodiments of the present application is made in conjunction with the drawings in the embodiments of the present application clearly and completely, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. Meanwhile, the embodiment described below takes 2 antennas as an example, but the embodiment is not limited to only 2 antennas, and is also applicable to product types with more than 2 antennas. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments herein without making any creative effort shall fall within the scope of the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
The related technical term "carrier aggregation" generally refers to aggregation of multiple component carriers together to increase transmission bandwidth and effectively increase transmission rate. According to the frequency band of the member carrier, the carrier aggregation can be divided into: intra-band carrier aggregation and inter-band carrier aggregation. The intra-band carrier aggregation is used for aggregating at least two member carriers in the same frequency band; inter-band carrier aggregation aggregates at least two component carriers of different frequency bands.
Of course, the above-described terms are to be construed merely for convenience of understanding and are not to be construed in any limiting sense.
Fig. 2 is a schematic flowchart of a first embodiment of a method for processing pilot frequency diversity data according to an embodiment of the present application, where the method is applied to a terminal device supporting downlink carrier aggregation, where the terminal device includes at least two antennas, and the method includes:
s201: the terminal equipment sends a pilot frequency diversity receiving request to the network equipment;
before the terminal device sends the pilot frequency diversity reception request to the network device, it needs to determine whether the network device supports the carrier aggregation technology, the terminal device may send a report message to the network device, and the network device indicates, through the confirmation message, whether the network device supports the carrier aggregation technology.
The terminal equipment can send a report message to the network equipment after accessing the network or before sending a pilot frequency diversity receiving request to the network equipment; and the terminal equipment receives a confirmation message sent by the network equipment, wherein the confirmation message is used for indicating whether the network equipment supports the carrier aggregation technology. The terminal equipment sends the pilot frequency diversity receiving request to the network equipment, and the pilot frequency diversity receiving request comprises the following steps: and when the confirmation message indicates that the network equipment supports the carrier aggregation technology, the terminal equipment sends a pilot frequency diversity receiving request to the network equipment.
In this implementation, after accessing the network, the terminal device sends a report message to the network device. Fig. 3 is a schematic view of a process of sending report information by a terminal device according to an embodiment of the present application. As shown in fig. 3:
s301: and the terminal equipment sends the report information to the network equipment.
The reported information is used for indicating that the terminal equipment supports the carrier aggregation technology, and the information can be carried in messages of different forms. The presentation form of the information in the message is not specifically limited, and in an optional manner, a certain field in the message may be used to indicate whether the terminal device supports the carrier aggregation technology.
S302: the network equipment stores the reported information and judges whether the network equipment supports the carrier aggregation technology.
S303: the network equipment sends a confirmation message to the terminal equipment, wherein the confirmation message is used for indicating whether the network equipment adopts the carrier aggregation technology or not.
It should be noted that, when the terminal device needs to receive data through the pilot frequency diversity, the terminal device may also send a report message to the network device before sending a pilot frequency diversity reception request to the network device. For specific processing operations, reference may be made to the operations described in fig. 3, which are not described herein again.
Before sending the pilot frequency diversity reception request to the network device, the terminal device further includes: judging whether the same-frequency diversity reception meets the service requirement; the sending the pilot frequency diversity reception request to the network device includes: and if the same-frequency diversity reception does not meet the service requirement, sending a different-frequency diversity reception request to the network equipment.
Wherein, the judging whether the same-frequency diversity reception meets the service requirement comprises: judging whether the signal-to-noise ratio is greater than a first threshold value; and/or, judging whether the throughput is larger than a second threshold value; and/or, determining whether the data download rate is greater than a third threshold.
Before downloading data, the terminal equipment can acquire a first threshold value of the data from a network, wherein the first threshold value is a signal-to-noise ratio value which needs to be reached when the data is downloaded, and when the signal-to-noise ratio value of the data received by the terminal equipment through same frequency diversity is larger than the first threshold value of the data, the terminal equipment can correctly download the data. Therefore, when the terminal equipment acquires the first threshold, whether the signal-to-noise ratio of the data received through the same-frequency diversity is greater than the first threshold is judged;
before downloading data, the terminal equipment can acquire a second threshold value of the data from a network, wherein the second threshold value is a throughput value which needs to be reached when the data is downloaded, and when the throughput value of the data received by the terminal equipment through same frequency diversity is larger than the second threshold value of the data, the terminal equipment can correctly download the data. Therefore, when the terminal device acquires the second threshold, it is determined whether the throughput of receiving the data through the same-frequency diversity is greater than the second threshold.
Before downloading data, the terminal device may obtain a third threshold of the data from the network, where the third threshold is a download rate value to which the data needs to be downloaded, and when a download rate value of the same-frequency diversity is greater than the third threshold of the data, the terminal device may correctly download the data. Therefore, when the terminal device obtains the third threshold, it is determined whether the download rate of the same-frequency diversity is greater than the third threshold.
Wherein, judging whether the same-frequency diversity reception meets the service requirement comprises: and determining whether the signal-to-noise ratio, the throughput and the download rate are greater than any one or more combinations of the set thresholds, which is not limited herein. When a plurality of combinations are judged, the order of judgment is not limited. Meanwhile, the above-mentioned judgment of whether the same-frequency diversity reception meets the service requirement can also be performed at the network equipment side.
And after the judgment is finished, if the same-frequency diversity reception is judged not to meet the service requirement, the terminal equipment sends a different-frequency diversity reception request to the network equipment. The pilot frequency diversity receiving request comprises a pilot frequency diversity receiving service application and a pilot frequency diversity receiving frequency band allocation request.
S202: and the terminal equipment respectively receives at least two paths of data through the at least two antennas, the at least two paths of data are data sent by the network equipment by utilizing the determined at least two member carriers, and the frequency points of the at least two member carriers are different.
Wherein the at least two antennas may be at least two diversity antennas of the terminal device. The at least two component carriers belong to the same frequency band, or the at least two component carriers belong to different frequency bands.
S203: the terminal equipment demodulates the data respectively received by the at least two antennas to obtain at least four paths of demodulated data;
at least two paths of data received by at least two antennas are demodulated one by one through corresponding demodulators.
S204: and the terminal equipment combines the at least four paths of data to obtain combined data.
The terminal device can combine at least four paths of data by adopting a maximum power algorithm, so that the signal-to-noise ratio of the data obtained after combination is higher. The maximum power algorithm is used for combining multiple paths of useful signals and only keeps the noise of one path of data. If the data is two paths of data, the signal to noise ratio is improved to 3 db; if the data is 4 paths of data, the signal to noise ratio is improved to 6 db; if there are X paths of data, the improvement of the signal to noise ratio is log (X) dB.
For convenience of understanding, 2 antennas and 2 component carriers are taken as an example for description, referring to fig. 4, fig. 4 is a schematic diagram of pilot frequency diversity reception of a terminal device according to an embodiment of the present application.
The first antenna and the second antenna of the terminal device respectively receive data sent by the network device through the determined two member carriers, the received data are filtered by a filter to remove noise and low-frequency data to obtain two groups of data f1 and f2, the two groups of data are amplified by an amplifier, the two groups of amplified data are respectively demodulated to obtain four paths of data which are respectively f1 ', f 2', f1 "and f 2", and then the four paths of data are combined through a maximum power algorithm to obtain combined data. Through simple calculation, the data signal-to-noise ratio obtained by the method provided by the embodiment of the present application is higher than the data signal-to-noise ratio obtained by the prior art shown in fig. 1 by 3dB, and is calculated as follows:
the signal-to-noise ratio of the two paths of data is improved as follows: 10 log (2) to 3 dB; the signal-to-noise ratio of the four paths of data is improved as follows: 10 log (4) ═ 6dB
The embodiment of the application improves the problems that in the prior art, the number of antennas needs to be increased, the cost is increased for achieving the purpose and the like in order to increase the signal-to-noise ratio of received data and improve the receiving quality, and the terminal equipment supporting downlink carrier aggregation receives data through at least two antennas, so that multi-channel data are obtained at the terminal equipment, and the signal-to-noise ratio of the data obtained by combining the multi-channel data is increased. On the premise of not increasing the number of antennas, the signal-to-noise ratio of the received data is increased, the quality of the received data is improved, and the production cost is reduced.
Referring to fig. 5, fig. 5 is a flowchart illustrating a second embodiment of a method for processing pilot frequency diversity data according to an embodiment of the present application, where the method is applied to a network device supporting downlink carrier aggregation, and the method includes:
s501: and the network equipment receives a pilot frequency diversity receiving request sent by the terminal equipment supporting the downlink carrier aggregation.
After receiving the request for receiving the pilot frequency diversity, the network device needs to perform further judgment processing to reply to the terminal device whether the terminal device supports pilot frequency diversity reception.
The network equipment judges whether the current residual bandwidth resources support pilot frequency diversity reception of the terminal equipment or not, and sends a judgment result to the terminal equipment. If the judgment result is yes, the terminal equipment starts the pilot frequency diversity reception; if not, the terminal equipment can send a pilot frequency diversity receiving request to the network equipment again and/or judge whether the same frequency diversity meets the service requirement.
S502: the network equipment responds to the pilot frequency diversity reception request, determines at least two component carriers from a component carrier set, and transmits data by utilizing the at least two component carriers; the frequency points of the at least two member carriers are different.
Wherein the determining at least two component carriers from the component carrier aggregation comprises: determining at least two member carriers from the member carriers in the same frequency band; or determining at least two component carriers from component carriers of different frequency bands.
For convenience of understanding, 2 antennas and 2 component carriers are taken as an example for introduction, referring to fig. 6, fig. 6 is a schematic view of an embodiment of the present application, in which a modulator 1 and a modulator 2 modulate the same data, that is, the modulator 1 modulates original data by a first component carrier to obtain data f1, the modulator 2 modulates data by a second component carrier to obtain data f2, the data f1 and f2 modulated by two different component carriers may pass through a power amplifier, and the purpose of the power amplifier is to amplify the modulated data power; and the data f1 and f2 after power amplification enter the combiner and are sent to the terminal equipment through the transmitting antenna.
The first component carrier and the second component carrier are determined by the network device, and may be determined from a component carrier set of the same frequency band; or from a set of component carriers of different frequency bands. Meanwhile, the description of the first component carrier and the second component carrier is only for distinguishing two different component carriers, and the problem of execution sequence is not involved.
The method further comprises the following steps: receiving reported information sent by terminal equipment, wherein the reported information is used for indicating that the terminal equipment supports a carrier aggregation technology; and sending a confirmation message to the terminal equipment, wherein the confirmation message is used for indicating whether the network equipment supports the carrier aggregation technology, so that the terminal equipment can judge whether to send a pilot frequency diversity receiving request according to the confirmation message.
For the process of the network device processing the report information and sending the acknowledgement message, refer to the processing process shown in fig. 3, which is not described herein again.
The embodiment of the application aims at solving the problems that in the prior art, the signal to noise ratio of received data needs to be increased, the receiving quality needs to be improved, the number of antennas needs to be increased, the cost is increased for realizing the purpose, and the like. On the premise of not increasing the number of antennas, the signal-to-noise ratio of the received data is increased, the quality of the received data is improved, and the production cost is reduced.
For convenience of understanding, the embodiment of the present application is introduced in conjunction with a specific application scenario, and this embodiment describes a specific interaction operation between a base station supporting downlink carrier aggregation and a mobile phone supporting downlink carrier aggregation.
When a user enters a cell with a mobile phone, the user sends a subsequent request to a base station where the cell is located so that the user can normally use related services in the cell, after the connection is successful, the mobile phone can send report information to the base station, the base station judges that the mobile phone supports a carrier aggregation technology according to the report information, and simultaneously judges whether the base station supports the corresponding carrier aggregation technology, if the base station supports carrier aggregation, the mobile phone supports pilot frequency downlink diversity reception, and after the corresponding judgment operation is completed, the base station sends a judgment result to the mobile phone so that the mobile phone can apply for pilot frequency diversity reception to the base station when the mobile phone has a service demand.
After the operation, when the mobile phone has service data downloading, whether the same frequency diversity meets the downloading of the data is judged, if yes, the same frequency diversity can be used for downloading corresponding data, and other service data are detected; if the bandwidth resource is not available, the mobile phone can send a pilot frequency diversity reception request to the base station, the base station needs to judge the residual bandwidth resource of the mobile phone after receiving the request, if the current bandwidth resource is free and can meet the data downloading requirement, the pilot frequency diversity reception of the mobile phone is supported, the judgment result is sent to the mobile phone, and the pilot frequency diversity reception is started after the mobile phone receives the data; if the current network resource is busy and cannot meet the requirement of data downloading, the mobile phone pilot frequency diversity reception is not supported, the judgment result is sent to the mobile phone, and after the mobile phone receives the data, the mobile phone can apply the pilot frequency diversity reception again until the bandwidth resource can meet the requirement of data downloading, and can judge whether the same frequency diversity meets the requirement of data downloading again.
When the base station supports mobile phone pilot frequency diversity reception, the specific sending and receiving process is as shown in fig. 7, the base station determines that two member carriers modulate downloaded data, modulated data f1 and f2 are obtained through a modulator 1 and a modulator 2, the modulated two paths of data are sent to the mobile phone through a transmitting antenna after passing through a power amplifier and a combiner, the mobile phone receives data f1 and f2 sent by the base station through a first antenna and a second antenna respectively, the received data are filtered out noise through a filter, then the data f1 and f2 are correspondingly amplified so as to be demodulated better, the amplified data are demodulated through a corresponding demodulator to obtain four paths of data f1 ', f 2', f1 "and f 2", and then the four paths of data are combined through a maximum power algorithm to obtain combined data. Compared with the prior art, the signal-to-noise ratio of the data obtained by combining the four paths of data is 3dB higher.
The implementation of the method and the device for the multi-channel data transmission aims at improving the problems that the signal to noise ratio of received data is increased, the receiving quality is improved, the number of antennas needs to be increased, cost is increased for achieving the purpose, and the like. On the premise of not increasing the number of antennas, the signal-to-noise ratio of the received data is increased, the quality of the received data is improved, and the production cost is reduced.
Fig. 8 is a schematic diagram of a first embodiment of an inter-frequency diversity data processing apparatus provided in an embodiment of the present application, and is applied to a terminal device supporting downlink carrier aggregation, where the apparatus includes:
a sending unit 801, configured to send a pilot frequency diversity reception request to a network device;
a receiving unit 802, configured to receive at least two paths of data through the at least two antennas, where the at least two paths of data are data sent by a network device using at least two determined component carriers, and frequency points of the at least two component carriers are different;
the receiving unit 802 includes: a first antenna receiving subunit 8021, a second antenna receiving subunit 8022;
a demodulating unit 803, configured to perform demodulation processing on data received by at least two antennas, respectively, to obtain at least four paths of demodulated data;
the demodulation unit 803 further includes: a first demodulation subunit 8031, a second demodulation subunit 8032, a third demodulation subunit 8033, and a fourth demodulation subunit 8034; the first demodulation subunit 8031 and the third demodulation subunit 8033 have the same function, and demodulate the same data f 1; the second demodulation subunit 8032 and the fourth subunit 8034 have the same function, and demodulate the same data f 2;
a merging unit 804, configured to merge the at least four paths of data to obtain merged data.
The setting of each unit or module of the apparatus of the present application can be implemented by referring to the method shown in fig. 2, which is not described herein again.
Fig. 9 is a schematic diagram of a second embodiment of an inter-frequency diversity data processing apparatus provided in an embodiment of the present application, and is applied to a network device supporting downlink carrier aggregation, where the apparatus includes:
a receiving unit 901, configured to receive a pilot frequency diversity receiving request sent by a network device supporting downlink carrier aggregation;
a sending unit 902, configured to determine at least two component carriers from a component carrier set in response to the pilot frequency diversity reception request, and send data using the at least two component carriers; the frequency points of the at least two member carriers are different.
The arrangement of each unit or module of the apparatus of the present application can be set with reference to the method shown in fig. 5, which is not described herein again.
Fig. 10 is a schematic diagram of a third embodiment of an inter-frequency diversity receiving apparatus according to an embodiment of the present application, where the apparatus includes: at least one processor 1001 (e.g., CPU), memory 1002, and at least one communication bus 1003 for enabling communications among the devices. The processor 1001 is used to execute executable modules, such as computer programs, stored in the memory 1002. The Memory 1002 may include a Random Access Memory (RAM) and may further include a non-volatile Memory (non-volatile Memory), such as at least one disk Memory.
The operation of the processor 1001, specifically configured to execute a method for processing inter-frequency diversity data, specifically includes:
sending a pilot frequency diversity receiving request to network equipment;
receiving at least two paths of data through the at least two antennas respectively, wherein the at least two paths of data are data sent by the network equipment by utilizing at least two determined component carriers, and the frequency points of the at least two component carriers are different;
demodulating data respectively received by at least two antennas to obtain at least four paths of demodulated data;
and combining the at least four paths of data to obtain combined data.
In some embodiments, the processor 1001 is further specifically configured to execute the following instructions:
after accessing a network or before sending a pilot frequency diversity reception request to network equipment, sending reporting information to the network equipment;
receiving an acknowledgement message sent by the network device, where the acknowledgement message is used to indicate whether the network device supports a carrier aggregation technology;
the sending the pilot frequency diversity reception request to the network device includes:
and when the confirmation message indicates that the network equipment supports the carrier aggregation technology, sending an inter-frequency diversity reception request to the network equipment.
In some embodiments, the processor 1001 is further specifically configured to execute the following instructions:
judging whether the same-frequency diversity reception meets the service requirement;
the sending the pilot frequency diversity reception request to the network device includes:
and if the same-frequency diversity reception does not meet the service requirement, sending a different-frequency diversity reception request to the network equipment.
In some embodiments, the processor 1001 performs the determining whether the intra-frequency diversity reception meets the service requirement includes:
judging whether the signal-to-noise ratio is greater than a first threshold value; and/or the presence of a gas in the gas,
judging whether the throughput is greater than a second threshold value; and/or the presence of a gas in the gas,
and judging whether the data downloading rate is greater than a third threshold value.
In some embodiments, the processor 1001 performs the receiving of the at least two paths of data for the network device to send using the determined at least two component carriers includes:
the at least two component carriers belong to the same frequency band, or the at least two component carriers belong to different frequency bands.
The setting of each unit or module of the apparatus of the present application can be implemented by referring to the method shown in fig. 2, which is not described herein again.
Fig. 11 is a schematic diagram of a third embodiment of an inter-frequency diversity receiving apparatus according to an embodiment of the present application, where the apparatus includes: at least one processor 1101 (e.g., CPU), memory 1102 and at least one communication bus 1103 for enabling communications among the devices. The processor 1101 is used to execute executable modules, such as computer programs, stored in the memory 1102. The Memory 1102 may include a Random Access Memory (RAM) and may also include a non-volatile Memory (non-volatile Memory), such as at least one disk Memory.
The processor 1101 is specifically configured to perform an operation of a method for inter-frequency diversity data processing, specifically including:
receiving a pilot frequency diversity receiving request sent by terminal equipment supporting downlink carrier aggregation;
responding to the pilot frequency diversity reception request, determining at least two component carriers from a component carrier set, and transmitting data by using the at least two component carriers; the frequency points of the at least two member carriers are different.
In some embodiments, the processor 1101 performs the operation of determining at least two component carriers from a set of component carriers comprising:
determining at least two member carriers from a member carrier set of the same frequency band; or,
at least two component carriers are determined from component carrier sets of different frequency bands.
In some embodiments, the processor 1101 is further specifically configured to execute the following instructions:
receiving reported information sent by terminal equipment, wherein the reported information is used for indicating that the terminal equipment supports a carrier aggregation technology;
and sending a confirmation message to the terminal equipment, wherein the confirmation message is used for indicating whether the network equipment supports the carrier aggregation technology, so that the terminal equipment can judge whether to send a pilot frequency diversity receiving request according to the confirmation message.
The setting of each unit or module of the apparatus of the present application can be implemented by referring to the method shown in fig. 5, which is not described herein again.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice in the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the attached claims
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. The application may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The application may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the apparatus embodiment, since it is substantially similar to the method embodiment, it is relatively simple to describe, and reference may be made to some descriptions of the method embodiment for relevant points. 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 parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of 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. The foregoing is directed to embodiments of the present application and it is noted that numerous modifications and adaptations may be made by those skilled in the art without departing from the principles of the present application and are intended to be within the scope of the present application.
Claims (14)
1. A method for processing pilot frequency diversity data is applied to a terminal device supporting downlink carrier aggregation, wherein the terminal device includes at least two antennas, and the method includes:
sending a pilot frequency diversity receiving request to network equipment;
receiving at least two paths of data through the at least two antennas respectively, wherein the at least two paths of data are data sent by the network equipment by utilizing at least two determined component carriers, and the frequency points of the at least two component carriers are different;
demodulating data respectively received by at least two antennas to obtain at least four paths of demodulated data;
and combining the at least four paths of data to obtain combined data.
2. The method of claim 1, further comprising:
after accessing a network or before sending a pilot frequency diversity reception request to network equipment, sending reporting information to the network equipment;
receiving an acknowledgement message sent by the network device, where the acknowledgement message is used to indicate whether the network device supports a carrier aggregation technology;
the sending the pilot frequency diversity reception request to the network device includes:
and when the confirmation message indicates that the network equipment supports the carrier aggregation technology, sending an inter-frequency diversity reception request to the network equipment.
3. The method of claim 2, wherein before sending the inter-frequency diversity receive request to the network device, the method further comprises:
judging whether the same-frequency diversity reception meets the service requirement;
the sending the pilot frequency diversity reception request to the network device includes:
and if the same-frequency diversity reception does not meet the service requirement, sending a different-frequency diversity reception request to the network equipment.
4. The method of claim 3, wherein the determining whether the intra-frequency diversity reception meets the service requirement comprises:
judging whether the signal-to-noise ratio is greater than a first threshold value; and/or the presence of a gas in the gas,
judging whether the throughput is greater than a second threshold value; and/or the presence of a gas in the gas,
and judging whether the data downloading rate is greater than a third threshold value.
5. The method of claim 1, wherein the at least two component carriers belong to a same frequency band, or wherein the at least two component carriers belong to different frequency bands.
6. An inter-frequency diversity data processing method, applied to a network device supporting downlink carrier aggregation, includes:
receiving a pilot frequency diversity receiving request sent by terminal equipment supporting downlink carrier aggregation;
responding to the pilot frequency diversity reception request, determining at least two component carriers from a component carrier set, and transmitting data by using the at least two component carriers; the frequency points of the at least two member carriers are different.
7. The method of claim 6, wherein the determining at least two component carriers from the set of component carriers comprises:
determining at least two member carriers from a member carrier set of the same frequency band; or,
at least two component carriers are determined from component carrier sets of different frequency bands.
8. The method of claim 6, further comprising:
receiving reported information sent by terminal equipment, wherein the reported information is used for indicating that the terminal equipment supports a carrier aggregation technology;
and sending a confirmation message to the terminal equipment, wherein the confirmation message is used for indicating whether the network equipment supports the carrier aggregation technology, so that the terminal equipment can judge whether to send a pilot frequency diversity receiving request according to the confirmation message.
9. An inter-frequency diversity data processing apparatus, applied to a terminal device supporting downlink carrier aggregation, where the terminal device includes at least two antennas, the apparatus comprising:
a sending unit, configured to send a pilot frequency diversity reception request to a network device;
the receiving unit is used for respectively receiving at least two paths of data through the at least two antennas, wherein the at least two paths of data are data sent by the network equipment by utilizing at least two determined component carriers, and the frequency points of the at least two component carriers are different;
the demodulation unit is used for demodulating the data respectively received by the at least two antennas to obtain at least four paths of demodulated data;
and the merging unit is used for merging the at least four paths of data to obtain merged data.
10. An inter-frequency diversity data processing apparatus, applied to a network device supporting downlink carrier aggregation, the apparatus comprising:
a receiving unit, configured to receive a pilot frequency diversity reception request sent by a network device supporting downlink carrier aggregation;
a transmission unit: responding to the pilot frequency diversity reception request, determining at least two component carriers from a component carrier set, and transmitting data by using the at least two component carriers; the frequency points of the at least two member carriers are different.
11. An inter-frequency diversity data processing apparatus comprising a memory, and one or more programs, wherein the one or more programs are stored in the memory, and wherein execution of the one or more programs by one or more processors comprises instructions for:
sending a pilot frequency diversity receiving request to network equipment;
receiving at least two paths of data through at least two antennas respectively, wherein the at least two paths of data are data sent by network equipment by utilizing at least two determined component carriers, and the frequency points of the at least two component carriers are different;
demodulating data respectively received by at least two antennas to obtain at least four paths of demodulated data;
and combining the at least four paths of data to obtain combined data.
12. An inter-frequency diversity data processing apparatus comprising a memory, and one or more programs, wherein the one or more programs are stored in the memory, and wherein execution of the one or more programs by one or more processors comprises instructions for:
receiving a pilot frequency diversity receiving request sent by terminal equipment supporting downlink carrier aggregation;
responding to the pilot frequency diversity reception request, determining at least two component carriers from a component carrier set, and transmitting data by using the at least two component carriers; the frequency points of the at least two member carriers are different.
13. A machine-readable medium having stored thereon instructions which, when executed by one or more processors, cause an apparatus to perform a method of inter-frequency diversity data processing according to one or more of claims 1 to 5.
14. A machine-readable medium having stored thereon instructions which, when executed by one or more processors, cause an apparatus to perform a method of inter-frequency diversity data processing according to one or more of claims 6 to 8.
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