CN106656412B - Retransmission feedback information processing method, communication device and terminal - Google Patents
Retransmission feedback information processing method, communication device and terminal Download PDFInfo
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- CN106656412B CN106656412B CN201510742749.8A CN201510742749A CN106656412B CN 106656412 B CN106656412 B CN 106656412B CN 201510742749 A CN201510742749 A CN 201510742749A CN 106656412 B CN106656412 B CN 106656412B
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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
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
- H04L1/0047—Decoding adapted to other signal detection operation
- H04L1/0048—Decoding adapted to other signal detection operation in conjunction with detection of multiuser or interfering signals, e.g. iteration between CDMA or MIMO detector and FEC decoder
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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
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
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Abstract
The embodiment of the invention discloses a retransmission feedback information processing method, a communication device and a terminal, wherein the method comprises the following steps: a first terminal receiving transmission data transmitted to at least two terminals using a non-orthogonal multiple access technique; the at least two terminals include the first terminal and at least one second terminal other than the first terminal; the first terminal demodulates and checks second data of the second terminal in the sending data to form a second checking result; and sending second retransmission feedback information of the second data to the base station based on the second check result.
Description
Technical Field
The present invention relates to the field of wireless communications, and in particular, to a method, a communication device, and a terminal for processing retransmission feedback information.
Background
To further increase network throughput and carry more terminal access requirements, the fifth Generation (6 Generation, 5G) communication system in the future proposes non-orthogonal multiple access technology. In this technique, multiple terminal signals are aliased for transmission on the same time-frequency resource. In order to overcome the influence of time-varying characteristics of a wireless channel and multipath fading on signal transmission, a Hybrid Automatic Repeat request (HARQ) mechanism needs to be introduced in non-orthogonal multiple access transmission.
In the downlink HARQ technology of the conventional cellular network, each terminal determines the correctness of a received data packet through CRC check information. If the data is received correctly, sending (ACK) response information to the base station; if the receiving fails, NACK response information is sent to inform the base station, and the base station retransmits the corresponding data block. In the conventional system, since the terminals transmit respective signals on orthogonal resources, each terminal feeds back respective ACK or (NACK) NACK information.
However, in the prior art, some terminals need to check not only their own data but also data of other terminals, and demodulate and detect their own data based on the check results of the other terminals. If the data transmission of other terminals is wrong in the process, the terminal may be affected to correctly demodulate and check the data of the terminal. However, in the prior art, the terminal only checks and sends ACK or NACK for its own data, so that the base station also retransmits data based on the ACK or NACK sent by each terminal when retransmitting data, which obviously causes that the terminal that needs to demodulate and check other terminals always cannot correctly demodulate and check its own data.
Disclosure of Invention
In view of the above, embodiments of the present invention are directed to a retransmission feedback information, a communication device and a terminal, which at least partially solve the above problems.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a first aspect of an embodiment of the present invention provides a method for processing retransmission feedback information, where the method includes:
a first terminal receiving transmission data transmitted to at least two terminals using a non-orthogonal multiple access technique; the at least two terminals include the first terminal and at least one second terminal other than the first terminal;
the first terminal demodulates and checks second data of the second terminal in the sending data to form a second checking result;
and sending second retransmission feedback information of the second data to the base station based on the second check result.
Based on the above scheme, the method further comprises:
based on the second check result, removing first data sent to the first terminal by second data demodulation in the sending data;
verifying the first data to form a first verification result;
and sending first retransmission feedback information of the first data to the base station based on the first check result.
Based on the foregoing scheme, the removing, based on the second check result, the first data sent to the first terminal by demodulating the second data in the sent data includes:
and when the second check result shows that the second data check is passed, removing the second data of the sending data by adopting an interference deletion algorithm to obtain the first data.
Based on the above scheme, the sending, to the base station, the second retransmission feedback information of the second data based on the second check result further includes:
and if the first verification result shows that the first data passes the verification, stopping sending the second retransmission feedback information to the base station.
Based on the above scheme, the method further comprises:
and when the second check result shows that the second data check is failed, stopping the demodulation check of the first data, and sending first retransmission feedback information and second retransmission feedback information which request the retransmission of the first data and the second data to the base station.
Based on the scheme, the method comprises the following steps:
and selecting a communication resource corresponding to the first terminal to send the second retransmission feedback information and/or the second retransmission feedback information to the base station.
Based on the above scheme, the sending, to the base station, the second retransmission feedback information of the second data based on the second check result includes:
and when the second check result shows that the second data check is not passed, sending the second retransmission feedback information to the base station.
A second aspect of an embodiment of the present invention provides a communication apparatus, including:
a first receiving unit for receiving transmission data transmitted to at least two terminals using a non-orthogonal multiple access technique; the at least two terminals include the first terminal and at least one second terminal other than the first terminal;
the demodulation checking unit is used for demodulating and checking second data of a second terminal in the sending data to form a second checking result;
a sending unit, configured to send second retransmission feedback information of the second data to a base station based on the second check result.
Based on the above scheme, the demodulation checking unit is further configured to remove, based on the second checking result, first data sent to the first terminal by second data demodulation in the sent data; verifying the first data to form a first verification result;
the sending unit is further configured to send first retransmission feedback information of the first data to the base station based on the first check result.
Based on the above scheme, the demodulation checking unit is specifically configured to remove the second data of the sending data by using an interference cancellation algorithm to obtain the first data when the second check result indicates that the second data check passes.
Based on the above scheme, the demodulation checking unit is further configured to stop the demodulation checking on the first data when the second checking result indicates that the second data checking fails;
the sending unit is further configured to send, to the base station, first retransmission feedback information and second retransmission feedback information that request retransmission of the first data and the second data when the second check result indicates that the second data check does not pass.
Based on the above scheme, the sending unit is further configured to stop checking the first data and send a retransmission request of the second data to the base station when the second checking result indicates that the second data cannot be checked.
Based on the foregoing scheme, the sending unit is specifically configured to select a communication resource corresponding to the first terminal to send the second retransmission feedback information and/or the second retransmission feedback information to the base station.
Based on the foregoing scheme, the sending unit is specifically configured to send the second retransmission feedback information to the base station when the second check result indicates that the second data check fails.
A third aspect of the embodiments of the present invention provides a terminal, where the terminal is a first terminal including any one of the foregoing communication apparatuses.
In the retransmission feedback information, the communication apparatus, and the terminal provided in the embodiments of the present invention, the first terminal needs to demodulate and verify data of the second terminal, and demodulates and verifies the first data of itself based on a result of verifying the second data of the second terminal, so that in order to avoid incorrect demodulation of the first data due to an output error of the second data, the first terminal will feed back the second retransmission feedback information of the second data, and trigger the base station to determine whether to retransmit the second data, so as to facilitate the first terminal to correctly demodulate the first data.
Drawings
Fig. 1 is a schematic flowchart of a first method for processing retransmission feedback information according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a second method for processing retransmission feedback information according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a first terminal according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the drawings and the specific embodiments of the specification.
The first embodiment is as follows:
as shown in fig. 1, this embodiment provides a method for processing retransmission feedback information, where the method includes:
step S110: a first terminal receiving transmission data transmitted to at least two terminals using a non-orthogonal multiple access technique; the at least two terminals include the first terminal and at least one second terminal other than the first terminal;
step S120: the first terminal demodulates and checks second data sent to the second terminal in the sent data and forms a second checking result;
step S130: and sending second retransmission feedback information of the second data to the base station based on the second check result.
In this embodiment, the data transmitted by using the non-orthogonal multiple access technique is transmitted to at least two terminals on the same time-frequency resource, and the data is not transmitted by using the orthogonal multiple access technique, so as to facilitate demodulation and verification of different terminals. In this embodiment, the at least two terminals are divided into two categories, one category is a first terminal, and the other category is a second terminal. In this embodiment, during the data demodulation and verification process of the first terminal, not only the data sent by the base station to the first terminal needs to be demodulated, but also the data sent to other terminals needs to be demodulated and verified. In the process of demodulating the data sent by the base station to the base station, the data sent by the base station to the base station needs to be demodulated and verified according to the verification result of the data of other terminals. In this embodiment, the data sent by the base station to the first terminal is set as the first data, and the data sent to the second terminal is the second data.
In this embodiment, the first terminal may check second data sent to the second terminal in the sending data to form a second check result. The Check here may be a Cyclic Redundancy Check (CRC). When the first terminal verifies the second data of the second terminal, the cyclic check code of the second user is used for verifying, and when the first terminal verifies the first data, the cyclic check code corresponding to the first terminal can be used for verifying.
The first terminal may send second retransmission feedback information to the base station based on the second check result after completing the check of the second data of the second terminal. The retransmission feedback information here may be ACK or NACK. And if the second check result indicates that the second data passes the check, sending an ACK (acknowledgement) to the base station to inform the base station not to retransmit the second data, and if the second check result indicates that the second data does not pass the check, sending a NACK (negative acknowledgement) to the base station by the first terminal to inform the base station of retransmitting the second data.
Obviously, in this embodiment, the first terminal may send not only ACK or NACK of the first data of the first terminal itself to the base station, but also ACK or NACK of the second terminal, so that when the second data affects demodulation and verification of the first data, the first terminal may request the base station to retransmit the second data by sending the second retransmission feedback information, thereby facilitating subsequent demodulation of the first data sent to the first terminal.
The first terminal described in this embodiment is generally a terminal with small channel attenuation in a non-orthogonal transmission system with multi-terminal signal superposition, and needs to perform complex signal processing based on maximum likelihood detection and a bit-level/symbol-level interference cancellation algorithm. The terminal with less channel attenuation may be the first terminal. Here, which terminals are the first terminals and which terminals are the second terminals may be notified to each terminal by the base station through channel measurement and transmission of indication information. Particularly for the interference cancellation method, the terminal with less channel attenuation firstly demodulates other terminal data, and then receives the data which cancels the interference to resolve the terminal.
In this embodiment, the step S130 may only include: and if the second check result indicates that the second data check is not passed, sending second retransmission feedback information to the base station, and if the second check result indicates that the second data check is passed, not sending the second retransmission feedback information to the base station. The first terminal checks the first data of the first terminal when the second data fails to pass the check, and the second retransmission feedback information may not be sent to the base station if the second data passes the check. And if the base station does not receive the second retransmission feedback information, the second data transmission can be determined to be correct without retransmission. Therefore, the data interaction amount between the first terminal and the base station can be reduced, and the power consumption of the terminal is reduced.
It is worth noting that: of course, after receiving the transmission data transmitted by using the non-orthogonal multiple access technology, the second terminal demodulates and verifies the second data in the transmission data to form a verification result; and the second terminal finally sends retransmission feedback information to the base station according to the verification result of the second terminal on the second data. Here, the retransmission feedback information may be the ACK or NACK as well.
In this embodiment, as shown in fig. 2, the method further includes:
step S140: based on the second check result, removing first data sent to the first terminal by second data demodulation in the sending data;
step S150: verifying the first data to form a first verification result;
step S160: and sending first retransmission feedback information of the first data to the base station based on the first check result.
Steps S140 to S160 are added in the present embodiment. In step S140, the second data in the sending data is determined according to the second check result, and the second data of the sending data is removed to obtain the first data. Specifically, for example, the first data is obtained by performing complex signal processing using the above-mentioned maximum likelihood detection or bit-level/symbol-level interference cancellation algorithm. For a detailed description of the maximum likelihood detection, or bit/symbol level based interference cancellation algorithm, reference may be made to the prior art and will not be described in detail here.
In some cases, the first data can be correctly demodulated based on error correction or the like even if the second data is not verified. In this embodiment, the step S140 may extract the first data directly after the second check result is formed. In step S150, the first data is verified, so that a first verification result for verifying the first data is obtained.
The first retransmission feedback information will be sent to the base station based on the first check result in step S160. In this embodiment, if the first data check is passed, an ACK may be sent to the base station, and if the first data check is not passed, a NACK may be sent to the base station.
In a specific implementation process, if the first verification result indicates that the first data is verified to be passed, the first terminal may send the first retransmission feedback information only to the base station, and does not send the second retransmission feedback information to the base station. Of course, when the second check result indicates that the second data check passes and the first data check fails, the first terminal may also send only the first retransmission feedback information to the base station. The first terminal may send the first retransmission feedback information and the second retransmission feedback information to the base station only when the second data is not verified and the first data is not verified.
In this embodiment, the step S140 may include:
and when the second check result shows that the second data check is passed, removing the second data of the sending data by adopting an interference deletion algorithm to obtain the first data.
Since the second data directly affects whether the first terminal can correctly demodulate the first data, in this embodiment, in order to reduce the power consumption of the first terminal when the second data is not verified, the step S140 is executed only when the second data is verified. Of course, in a specific implementation, even if the second data is not verified, the step S140 may be directly performed.
That is, after the first data is correctly demodulated, the first terminal does not need to re-receive and demodulate the first data, and it is not necessary to send the second retransmission feedback information to the base station at this time, and the first terminal may not perform the step S130 at this time, so as to reduce power consumption consumed by the terminal for sending data.
Of course, in this embodiment, the method further includes:
and when the second check result shows that the second data check is failed, stopping the demodulation check of the first data, and sending first retransmission feedback information and second retransmission feedback information which request the retransmission of the first data and the second data to the base station. If the second check result indicates that the second data does not pass the check, the demodulation and the check of the first data are affected, and meanwhile, transmission errors may also occur in the first data, so that retransmission is avoided again, and at this time, the first terminal sends the second retransmission feedback information to the base station and also sends the first retransmission feedback information to the base station.
As a further improvement of this embodiment, the method comprises:
and selecting a communication resource corresponding to the first terminal to send the second retransmission feedback information and/or the second retransmission feedback information to the base station.
The communication resources herein may include time domain resources, frequency band resources, or code resources. Here, different terminals may transmit the retransmission feedback information to the base station using different communication resources. If the terminal is the first terminal, the retransmission feedback information may be at least one of the first retransmission feedback information and the second retransmission feedback information.
For example, the transmission data includes data a transmitted to terminal a and data B transmitted to terminal B. At this time, the retransmission feedback information of the data a and the retransmission feedback data of the data B need to be transmitted at the same time. The terminal a is the first terminal; terminal B is the second terminal. Both terminal a and terminal B need to send retransmission feedback information, and in this embodiment, terminal a and terminal B send retransmission feedback information sent to the base station by using different communication resources. In this way, it is convenient for the base station to distinguish from which terminal the currently received retransmission feedback information comes.
Certainly, in a specific implementation process, the second terminal will also receive the transmitted data, and at this time, the second terminal will treat the first data in the transmitted data as background noise, only demodulate and check the second data in the transmitted data, and send retransmission feedback information of the second data to the base station according to a check result of the second terminal; the retransmission feedback information here may be ACK or NACK as described above, of course.
Example two:
as shown in fig. 3, the present embodiment provides a communication apparatus including:
a first receiving unit 110 for receiving transmission data transmitted to at least two terminals using a non-orthogonal multiple access technique; the at least two terminals include the first terminal and at least one second terminal other than the first terminal;
a demodulation checking unit 120, configured to demodulate and check second data of the second terminal in the sending data to form a second checking result;
a sending unit 130, configured to send second retransmission feedback information of the second data to the base station based on the second check result.
The communication apparatus according to the present embodiment may correspond to various types of devices capable of wireless communication, such as a mobile phone, a tablet computer, or a wearable device.
The receiving unit may correspond to various wireless communication interfaces capable of receiving transmission data transmitted using a non-orthogonal multiple access technique from a base station.
The demodulation verifying unit may include various demodulation devices, and in this embodiment, the demodulation structure may demodulate the first data and the second data from the transmitted data.
The transmitting unit may correspond to one or more transmitting antennas in the communication device, and may be configured to transmit the second retransmission feedback information to the base station. The second retransmission feedback information here may be the aforementioned ACK or NACK.
Further, the demodulation checking unit 120 is further configured to remove, based on the second checking result, the first data sent to the first terminal by the second data demodulation in the sending data; verifying the first data to form a first verification result;
the sending unit 130 is further configured to send first retransmission feedback information of the first data to the base station based on the first check result.
In this embodiment, after demodulating and checking the second data, the demodulation and checking unit 120 is further multiplexed to demodulate and check the first data. In this embodiment, the sending unit 130 is further multiplexed to send the first retransmission feedback information.
The demodulation verification unit 120 may be divided into two cases when demodulating and verifying the first data;
the first case:
the demodulation checking unit 120 is specifically configured to, when the second checking result indicates that the second data is checked to be passed, remove the second data of the sending data by using an interference cancellation algorithm to obtain the first data. At this time, the sending unit 130 may send the first retransmission feedback information and the second retransmission feedback information to the base station, and of course, the sending unit 130 is specifically configured to stop sending the second retransmission feedback information to the base station if the first verification result indicates that the first data passes the verification.
The second case:
the demodulation checking unit 120 is further configured to stop the demodulation checking on the first data when the second checking result indicates that the second data checking fails. At this time, the sending unit 130 is further configured to send first retransmission feedback information and second retransmission feedback information requesting retransmission of the first data and the second data to the base station when the second check result indicates that the second data check is failed.
In this embodiment, the demodulation and verification unit 120 can be prevented from continuing to perform unnecessary demodulation and verification on the first data, and the sending unit can also trigger the base station to send the first data and the second data once through sending the first retransmission feedback information and the second retransmission feedback information, so as to reduce the number of retransmissions.
As a further improvement of this embodiment, in this embodiment, the sending unit 130 is specifically configured to select a communication resource corresponding to the first terminal to send the second retransmission feedback information and/or the second retransmission feedback information to the base station. The sending unit 130 sends retransmission feedback information of different terminals to the base station by using different communication resources, so that the base station can conveniently retransmit data that is sent to a specific terminal according to the retransmission feedback information.
As a further improvement of this embodiment, the sending unit 130 is specifically configured to send the second retransmission feedback information to the base station when the second check result indicates that the second data check fails. In this embodiment, the sending unit 130 may be configured to send the second retransmission feedback information to the base station only when the second check result indicates that the second data is not verified, in order to reduce power consumption for sending data to the base station.
Example three:
the embodiment further provides a terminal, which is the first terminal mentioned in the foregoing embodiment; the first terminal includes the communication device according to any of the second embodiment. The first terminal may be a terminal device capable of non-orthogonal multiple access communication, and specifically, the first terminal may be a communication terminal device such as a mobile phone, a tablet, or a wearable device.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
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, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (15)
1. A retransmission feedback information processing method is characterized by comprising the following steps:
a first terminal receiving transmission data transmitted to at least two terminals using a non-orthogonal multiple access technique; the at least two terminals include the first terminal and at least one second terminal other than the first terminal;
the first terminal demodulates and checks second data of the second terminal in the sending data to form a second checking result;
and sending second retransmission feedback information of the second data to the base station based on the second check result.
2. The method of claim 1,
the method further comprises the following steps:
based on the second check result, removing first data sent to the first terminal by second data demodulation in the sending data;
verifying the first data to form a first verification result;
and sending first retransmission feedback information of the first data to the base station based on the first check result.
3. The method of claim 2,
the removing, based on the second check result, the first data demodulated from the second data in the transmission data and sent to the first terminal includes:
and when the second check result shows that the second data check is passed, removing the second data of the sending data by adopting an interference deletion algorithm to obtain the first data.
4. The method of claim 2,
the sending, to the base station, second retransmission feedback information of the second data based on the second check result further includes:
and if the first verification result shows that the first data passes the verification, stopping sending the second retransmission feedback information to the base station.
5. The method of claim 2, 3 or 4,
the method further comprises the following steps:
and when the second check result shows that the second data check is failed, stopping the demodulation check of the first data, and sending first retransmission feedback information and second retransmission feedback information which request the retransmission of the first data and the second data to the base station.
6. The method according to claim 2 or 3,
the method comprises the following steps:
and selecting a communication resource corresponding to the first terminal to send the first retransmission feedback information and/or the second retransmission feedback information to the base station.
7. The method according to any one of claims 1 to 4,
the sending, to the base station, second retransmission feedback information of the second data based on the second check result includes:
and when the second check result shows that the second data check is not passed, sending the second retransmission feedback information to the base station.
8. A communication apparatus, characterized in that the communication apparatus comprises:
a first receiving unit for receiving transmission data transmitted to at least two terminals using a non-orthogonal multiple access technique; the at least two terminals include a first terminal and at least one second terminal other than the first terminal;
the demodulation checking unit is used for demodulating and checking second data of a second terminal in the sending data to form a second checking result;
a sending unit, configured to send second retransmission feedback information of the second data to a base station based on the second check result.
9. The communication device of claim 8,
the demodulation checking unit is further configured to remove, based on the second checking result, first data sent to the first terminal from the second data demodulation in the sent data; verifying the first data to form a first verification result;
the sending unit is further configured to send first retransmission feedback information of the first data to the base station based on the first check result.
10. The communication device of claim 9,
the demodulation checking unit is specifically configured to, when the second checking result indicates that the second data check passes, remove the second data of the transmission data by using an interference cancellation algorithm to obtain the first data.
11. The communication device of claim 9,
the demodulation checking unit is further used for stopping the demodulation checking of the first data when the second checking result shows that the second data checking fails;
the sending unit is further configured to send, to the base station, first retransmission feedback information and second retransmission feedback information that request retransmission of the first data and the second data when the second check result indicates that the second data check does not pass.
12. The communication device according to claim 9, 10 or 11,
the sending unit is further configured to stop checking the first data and send a retransmission request of the second data to the base station when the second checking result indicates that the second data cannot be checked.
13. The communication device according to claim 9 or 10,
the sending unit is specifically configured to select a communication resource corresponding to the first terminal to send the first retransmission feedback information and/or the second retransmission feedback information to the base station.
14. The communication device according to any one of claims 8 to 11,
the sending unit is specifically configured to send the second retransmission feedback information to the base station when the second check result indicates that the second data check fails.
15. A terminal, characterized in that it is a first terminal comprising a communication device according to any of the preceding claims 8 to 14.
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| CN101047431A (en) * | 2006-06-22 | 2007-10-03 | 华为技术有限公司 | Method for implementing mixed automatic retransmit in communication system containing repeater station |
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| CN101375531A (en) * | 2006-01-27 | 2009-02-25 | 三星电子株式会社 | Hybrid multiple access apparatus and method in a mobile communication system |
| CN103188726A (en) * | 2011-12-29 | 2013-07-03 | 联芯科技有限公司 | Data receiving method and data receiving device for long term evolution (LTE) downlink shared channel |
| CN104869094A (en) * | 2015-04-29 | 2015-08-26 | 清华大学 | Upstream multiple access method combined with orthogonal multiple access and nonorthogonal multiple access |
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| CN101375531A (en) * | 2006-01-27 | 2009-02-25 | 三星电子株式会社 | Hybrid multiple access apparatus and method in a mobile communication system |
| CN101047431A (en) * | 2006-06-22 | 2007-10-03 | 华为技术有限公司 | Method for implementing mixed automatic retransmit in communication system containing repeater station |
| CN101106800A (en) * | 2006-07-11 | 2008-01-16 | 信息产业部电信传输研究所 | A resource scheduling method for uplink interlacing multi-address system |
| CN103188726A (en) * | 2011-12-29 | 2013-07-03 | 联芯科技有限公司 | Data receiving method and data receiving device for long term evolution (LTE) downlink shared channel |
| CN104869094A (en) * | 2015-04-29 | 2015-08-26 | 清华大学 | Upstream multiple access method combined with orthogonal multiple access and nonorthogonal multiple access |
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