WO2017000143A1 - 传输上行数据的方法和装置 - Google Patents
传输上行数据的方法和装置 Download PDFInfo
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- WO2017000143A1 WO2017000143A1 PCT/CN2015/082718 CN2015082718W WO2017000143A1 WO 2017000143 A1 WO2017000143 A1 WO 2017000143A1 CN 2015082718 W CN2015082718 W CN 2015082718W WO 2017000143 A1 WO2017000143 A1 WO 2017000143A1
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- uplink data
- transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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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
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0061—Error detection codes
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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
- H04L1/0076—Distributed coding, e.g. network coding, involving channel coding
- H04L1/0077—Cooperative coding
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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
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1893—Physical mapping arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/16—Code allocation
- H04J13/18—Allocation of orthogonal codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/002—Transmission of channel access control information
- H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
Definitions
- the present invention relates to the field of communications and, more particularly, to a method and apparatus for transmitting uplink data.
- a Hybrid Automatic Repeat Request (HARQ) technology is used for data transmission, that is, the receiving end needs to feed back to the transmitting end to indicate whether the transmitting end is successfully received.
- the indication information of the data specifically, if the reception fails, the receiving end feeds back a Negative Acknowledgment (NACK) message to the transmitting end, and accordingly, after receiving the NACK message, the transmitting end may perform data retransmission according to a specific HARQ timing relationship. .
- NACK Negative Acknowledgment
- the transmitting end may perform data retransmission according to a specific HARQ timing relationship.
- the feedback of the receiving end and the retransmission of the transmitting end will cause a certain transmission delay, so the data transmission using the HARQ technology will have a large transmission delay.
- systems using uplink Free (Crane Free) transmissions often require lower signaling overhead and transmission delay, and the use of HARQ technology will not meet the transmission delay requirements of future communication systems.
- Embodiments of the present invention provide a method and apparatus for transmitting uplink data, which can reduce transmission delay while obtaining transmit diversity gain.
- the embodiment of the present invention provides a method for transmitting uplink data, including: acquiring, by a first terminal device, second uplink data of a second terminal device; Data and the second uplink data are jointly encoded to obtain joint encoded data; the first terminal device sends the first uplink data to the network device by using the first transmission resource, and adopts a second transmission different from the first transmission resource.
- the resource sends the joint encoded data to the network device.
- the method before the acquiring the second uplink data of the second terminal device, the method further includes: receiving, by the network device, first indication information, where the first indication information And configured to indicate that the first terminal device performs transmit diversity transmission with the second terminal device; and according to the first indication information, determine to perform transmit diversity transmission with the second terminal device.
- the first indication information includes group identification information of the terminal device group to which the second terminal device belongs and number information of the second terminal device in the terminal device group.
- the method before the acquiring the second uplink data of the second terminal device, the method further includes: including the second terminal device At least one terminal device sends a transmit diversity transmission request for requesting transmit diversity transmission with the first terminal device; receiving a transmit diversity transmission response sent by the second terminal device according to the transmit diversity transmission request; Receiving the transmit diversity transmission response, determining to perform transmit diversity transmission with the second terminal device.
- the method further includes: sending, by the network device, second indication information, where the second indication information is used to indicate the first terminal device The second terminal device performs transmit diversity transmission.
- the method before the sending the first uplink data to the network device by using the first transmission resource, the method further includes: for the first uplink data, Adding a CRC code, where the CRC code is scrambled by using the identifier of the second terminal device; sending the first uplink data to the network device by using the first transmission resource, including: sending, by using the first transmission resource, the network device The first uplink data of the CRC code is added.
- the first transmission resource is specifically a first CTU
- the second transmission resource is specifically a second CTU
- the first CTU and the The second CTU is located in a different contention access zone.
- the method before the sending the jointly encoded data to the network device by using the second transmission resource different from the first transmission resource, the method further The method includes: acquiring information about a third transmission resource that is used when the second terminal device sends the second uplink data, and determining, according to information about the third transmission resource and the first transmission resource, the first used by sending the joint coded data Two transmission resources.
- the index number Indx CTU of the second CTU is determined by:
- Indx CTU (Sig 1 + Sig 2 ) mod N CTU ;
- Sig 1 is an index of a code resource included in the first transmission resource
- Sig 2 is an index of a code resource included in the third transmission resource
- N CTU is a number of CTUs included in the current subframe.
- the code resource includes one of the following: a sparse code multiple access codebook, a low density signature sequence, and a code division multiple access code. .
- the first uplink data and the joint encoded data are sent by the first terminal device to the network device by using an unlicensed transmission mode.
- the second aspect provides another method for transmitting uplink data, including: determining, by the second terminal device, uplink data to be sent and transmission resources of the uplink data; and sending, by the second terminal device, the uplink data to the first terminal device And the information about the transmission resource; the second terminal device sends the uplink data to the network device by using the transmission resource.
- the method before the sending the uplink data and the information about the transmission resource to the first terminal device, the method further includes: receiving the first indication information sent by the network device, The first indication information is used to indicate that the first terminal device performs transmit diversity transmission with the second terminal device; and according to the first indication information, determining to perform transmit diversity transmission with the first terminal device.
- the first indication information includes group identifier information of the terminal device group to which the first terminal device belongs, and the first terminal device is in the terminal device Numbering information within the group.
- the method before the sending the uplink data and the information about the transmission resource to the first terminal device, the method further includes: receiving the first a transmit diversity transmission request sent by the terminal device, the transmit diversity transmission request is used to request a transmit diversity transmission with the first terminal device, and determine, according to the transmit diversity transmission request, transmit diversity transmission with the first terminal device; The method includes: transmitting a transmit diversity transmission response to the first terminal device.
- the method before the sending the uplink data to the network device by using the transmission resource, the method further includes: adding a CRC code to the uplink data, where The CRC code is scrambled by using the identifier of the first terminal device, and the uplink data is sent to the network device by using the transmission resource corresponding to the transmission resource information, including: sending, by using the transmission resource corresponding to the transmission resource information, the network device The uplink data of the CRC code.
- the sending, by the first terminal device, the uplink data and the information about the transmission resource including: sending, by using D2D transmission, the first terminal device The uplink data and the information of the transmission resource.
- the information about the transmission resource includes information about a code resource, where the code resource includes one of the following: a sparse code multiple access codebook , low density signature sequence and code division multiple access code.
- the uplink data is sent by the second terminal device to the network device by using an unlicensed transmission mode.
- the third aspect provides another method for transmitting uplink data, including: receiving, by the network device, first uplink data that is sent by the first terminal device by using the first transmission resource, and second uplink that is sent by the second terminal device by using the third transmission resource.
- decoding results of the first uplink data and the second uplink data are obtained according to the obtained joint coded data and the first uplink data and the second uplink data.
- the method before the receiving, by the first terminal device, the first uplink data sent by using the first transmission resource and the second uplink data sent by the second terminal device by using the third transmission resource, The method further includes: determining that the first terminal device and the second terminal device perform transmit diversity transmission; and transmitting first indication information to the at least one of the first terminal device and the second terminal device, the first indication The information is used to indicate that the first terminal device and the second terminal device perform transmit diversity transmission.
- the determining that the first terminal device and the second terminal device perform transmit diversity transmission include: according to the first terminal device and the second Determining the transmission reliability information of the terminal device, determining that the first terminal device and the second terminal device perform transmit diversity transmission, where the transmission reliability information includes at least one of the following information: transmit diversity transmission capability information, current uplink channel quality information And historical bit error rate information.
- the method further includes: receiving second indication information sent by the at least one terminal device of the first terminal device and the second terminal device, where the second indication information is used to indicate the first terminal device Transmitting diversity transmission with the second terminal device lose.
- the method before the obtaining the joint coding data sent by the first terminal device by using the second transmission resource different from the first transmission resource, The method further includes: determining that the judgment condition of the diversity transmission transmission is satisfied, and the determining condition of the diversity transmission transmission includes at least one of the following: the CRC code corresponding to the first uplink data is scrambled by using the identifier of the second terminal device And the CRC code corresponding to the second uplink data is scrambled by using the identifier of the first terminal device; determining, according to the diversity transmission transmission, that the first uplink data and the second uplink data are Transmitted in a diversity transmit transmission.
- the first transmission resource is specifically a first CTU
- the second transmission resource is specifically a second CTU
- the third transmission resource is specifically Different from the first CTU and the third CTU of the second CTU
- the third CTU is located in a different contention access zone than the first CTU and the second CTU.
- the first uplink data and the first uplink data and the second uplink data are obtained according to the acquired joint coded data and the first uplink data and the second uplink data.
- the decoding result of the second uplink data includes: performing demodulation processing on the received first uplink data, obtaining an initial log likelihood ratio corresponding to the first uplink data; and receiving the second uplink data Performing a demodulation process to obtain an initial log likelihood ratio corresponding to the second uplink data; performing demodulation processing on the obtained joint encoded data to obtain a log likelihood ratio corresponding to the joint encoded data; according to the joint coding Determining a log likelihood ratio corresponding to the data, an initial log likelihood ratio corresponding to the first uplink data, and an initial log likelihood ratio corresponding to the second uplink data, determining a final log likelihood ratio corresponding to the first uplink data a final log likelihood ratio corresponding to the second uplink data; performing a decoding process on the final log likelihood ratio corresponding
- the log likelihood ratio corresponding to the joint encoded data, an initial log likelihood ratio corresponding to the first uplink data, and the The initial log likelihood ratio corresponding to the second uplink data determining a final log likelihood ratio corresponding to the first uplink data and a final log likelihood ratio corresponding to the second uplink data, including: corresponding to the joint encoded data The log likelihood ratio, the initial log likelihood ratio corresponding to the first uplink data, and the initial log likelihood ratio corresponding to the second uplink data, determining prior probability information of the first uplink data And a priori probability information of the second uplink data; determining, according to the prior log probability ratio of the first uplink data and an initial log likelihood ratio corresponding to the first uplink data, determining a final logarithm corresponding to the first uplink data And determining a final log likelihood ratio corresponding to the second uplink data according to the prior log probability ratio of the second uplink data and the initial log likelihood ratio corresponding to the
- the obtaining, by the first terminal device, joint coding data sent by using a second transmission resource different from the first transmission resource includes: acquiring The information of the first transmission resource and the information of the third transmission resource; determining the second transmission resource according to the information of the first transmission resource and the information of the third transmission resource; acquiring the transmission on the second transmission resource Jointly encoded data.
- the index Indx CTU of the second CTU is determined by:
- Indx CTU (Sig 1 + Sig 2 ) mod N CTU ;
- Sig 1 is an index of a code resource included in the first transmission resource
- Sig 2 is an index of a code resource included in the third transmission resource
- an N CTU is a number of CTUs included in the current subframe.
- the code resource includes one of the following: a sparse code multiple access codebook, a low density signature group, and a code division multiple access code. group.
- the second uplink data includes: receiving the first uplink data and the second uplink data that are respectively sent by the first terminal device and the second terminal device by using an unlicensed transmission mode.
- a fourth aspect provides another method for transmitting uplink data, including: determining, by a network device, that the first terminal device and the second terminal device perform transmit diversity transmission; and at least one of the first terminal device and the second terminal device The device sends the first indication information, where the first indication information is used to indicate that the first terminal device and the second terminal device perform transmit diversity transmission.
- the determining, by the first terminal device and the second terminal device, the transmit diversity transmission includes: according to the transmission reliability information of the first terminal device and the second terminal device, Determining that the first terminal device and the second terminal device perform transmit diversity transmission, where the transmission reliability information includes at least one of the following information: transmit diversity transmission capability information, current uplink channel quality information, and historical error rate information.
- the fifth aspect provides an apparatus for transmitting uplink data, including: an acquiring unit, configured to acquire second uplink data of the second terminal device; and an encoding unit, configured to use the first uplink data of the first terminal device, and the acquiring
- the second uplink data obtained by the unit is subjected to joint coding processing to obtain joint coded data
- the sending unit is configured to send the first uplink data to the network device by using the first transmission resource, and adopt a second different from the first transmission resource.
- the transmission resource sends the joint coded data obtained by the coding unit to the network device.
- the device further includes: a first receiving unit, configured to receive, after the acquiring unit acquires the second uplink data of the second terminal device, An indication information, the first indication information is used to indicate that the first terminal device performs transmission diversity transmission with the second terminal device, and the first determining unit is configured to use the first indication information received by the first receiving unit, Determining a transmit diversity transmission with the second terminal device.
- the first indication information includes group identifier information of a terminal device group to which the second terminal device belongs, and the second terminal device is in the terminal device Numbering information within the group.
- the sending unit is further configured to: before the acquiring unit acquires the second uplink data of the second terminal device, to include the second terminal At least one terminal device, the device, sends a transmit diversity transmission request, and the transmit diversity transmission request is used to request transmit diversity transmission with the first terminal device; the device further includes: a second receiving unit, configured to receive the second terminal a transmitting diversity transmission response sent by the device according to the transmit diversity transmission request sent by the sending unit; the second determining unit, configured to determine to transmit with the second terminal device according to the transmit diversity transmission response received by the second receiving unit Diversity transmission.
- the sending unit is further configured to send the second indication information to the network device, where the second indication information is used to indicate the first terminal device Transmit diversity transmission with the second terminal device.
- the device further includes: a check code adding unit, configured to send, by the sending unit, the first transmission resource to the network device Before the uplink data, the CRC code is added to the first uplink data, where the CRC code is scrambled by using the identifier of the second terminal device; the sending unit is specifically configured to send the school to the network device by using the first transmission resource.
- the code addition unit adds the first uplink data of the CRC code.
- the acquiring unit is configured to: receive, by using the D2D transmission, the second uplink data that is sent by the second terminal device.
- the first transmission resource is specifically a first CTU
- the second transmission resource is specifically a second CTU
- the first CTU and the The second CTU is located in a different contention access zone.
- the acquiring unit is further configured to: send, by the sending unit, the second transmission resource different from the first transmission resource to the network device Obtaining information of the third transmission resource that is used by the second terminal device to send the second uplink data before the data is jointly encoded; the device further includes: a third determining unit, configured to acquire, according to the first transmission resource and the acquiring unit The information about the third transmission resource determines the second transmission resource used to send the joint coded data; the sending unit is specifically configured to send the joint coded data by using the second transmission unit determined by the third determining unit.
- the index number Indx CTU of the second CTU is determined by:
- Indx CTU (Sig 1 + Sig 2 ) mod N CTU ;
- Sig 1 is an index of a code resource included in the first transmission resource
- Sig 2 is an index of a code resource included in the third transmission resource
- an N CTU is a number of CTUs included in the current subframe.
- the code resource includes one of the following: a sparse code multiple access codebook, a low density signature sequence, and a code division multiple access code. .
- the sending unit is specifically configured to send the first uplink data and the joint encoded data to the network device by using an unlicensed transmission mode.
- the device is the first terminal device.
- the sixth aspect provides another apparatus for transmitting uplink data, including: a determining unit, configured to determine uplink data to be sent and a transmission resource of the uplink data, and a sending unit, configured to send the determining unit to the first terminal device Determining the uplink data and the information of the transmission resource, and transmitting the uplink data to the network device by using the transmission resource determined by the determining unit.
- the apparatus further includes: a first receiving unit, And receiving, by the sending unit, the first indication information sent by the network device, where the sending, by the sending unit, the information about the uplink data and the transmission resource, where the first indication information is used to indicate the first terminal device and the first The second terminal device performs transmit diversity transmission; the determining unit is further configured to determine, according to the first indication information received by the first receiving unit, transmit diversity transmission with the first terminal device.
- the first indication information includes group identifier information of the terminal device group to which the first terminal device belongs, and the first terminal device is in the terminal device Numbering information within the group.
- the device further includes: a second receiving unit, configured to send the uplink data and the transmission to the first terminal device in the sending unit Before receiving the information of the resource, receiving a transmit diversity transmission request sent by the first terminal device, where the transmit diversity transmission request is used to request transmit diversity transmission with the first terminal device; the determining unit is further configured to receive according to the second receiving unit The transmit diversity transmission request determines to perform transmit diversity transmission with the first terminal device; the sending unit is further configured to send a transmit diversity transmission response to the first terminal device.
- the device further includes: a check code adding unit, configured to: before the sending unit sends the uplink data to the network device by using the transmission resource Adding a CRC code to the uplink data, where the CRC code is scrambled by using the identifier of the first terminal device; the sending unit is specifically configured to send the check code to the network device by using the transmission resource, and add the CRC.
- a check code adding unit configured to: before the sending unit sends the uplink data to the network device by using the transmission resource Adding a CRC code to the uplink data, where the CRC code is scrambled by using the identifier of the first terminal device; the sending unit is specifically configured to send the check code to the network device by using the transmission resource, and add the CRC.
- the upstream data of the code is not limited to: a check code adding unit, configured to: before the sending unit sends the uplink data to the network device by using the transmission resource Adding a CRC code to the uplink data, where the CRC code is scrambled
- the sending unit is configured to send, by using the D2D transmission, the uplink data and the information about the transmission resource to the first terminal device.
- the information about the transmission resource includes information about a code resource, where the code resource includes one of the following: a sparse code multiple access codebook, Low density signature sequence and code division multiple access code.
- the uplink data is sent by the second terminal device to the network device by using an unlicensed transmission mode.
- the device is the second terminal device.
- an apparatus for transmitting uplink data including: a receiving unit, configured to: Receiving, by the first terminal device, the first uplink data that is sent by using the first transmission resource, and the second uplink data that is sent by the second terminal device by using the third transmission resource; Coding coded data sent by the second transmission resource of the transmission resource, the joint coded data is obtained by jointly coding the first uplink data and the second uplink data received by the receiving unit; And obtaining, by the acquiring unit, the joint encoded data and the first uplink data and the second uplink data received by the receiving unit, to obtain a decoding result of the first uplink data and a decoding result of the second uplink data.
- the device further includes: a first determining unit, configured to receive, by the receiving unit, first uplink data and a second terminal that are sent by the first terminal device by using the first transmission resource Before the device uses the second uplink data sent by the third transmission resource, determining that the first terminal device and the second terminal device perform transmit diversity transmission; and sending, by the sending unit, at least the first terminal device and the second terminal device A terminal device sends the first indication information, where the first indication information is used to indicate that the first terminal device and the second terminal device determined by the first determining unit perform transmit diversity transmission.
- the first determining unit is configured to determine, according to the transmission reliability information of the first terminal device and the second terminal device, A terminal device and the second terminal device perform transmit diversity transmission, and the transmission reliability information includes at least one of the following information: transmit diversity transmission capability information, current uplink channel quality information, and historical error rate information.
- the receiving unit is further configured to: receive, by the first terminal device, the first uplink data and the second terminal device that are sent by using the first transmission resource Before the second uplink data sent by the third transmission resource, the second indication information sent by the at least one terminal device of the first terminal device and the second terminal device is received, where the second indication information is used to indicate the first terminal The device and the second terminal device perform transmit diversity transmission.
- the device further includes: a second determining unit, configured to acquire, by the acquiring unit, the first terminal device to be different from the first transmission Before determining the joint encoded data sent by the second transmission resource of the resource, determining that the condition for determining the diversity transmission transmission is satisfied, the determining condition of the diversity transmission transmission includes at least one of the following: the CRC code corresponding to the first uplink data is adopted by the The identifier of the second terminal device is scrambled, and the CRC code corresponding to the second uplink data is determined by using the identifier of the first terminal device. The line is scrambled; and the judgment condition according to the diversity transmission transmission is satisfied, and it is determined that the first uplink data and the second uplink data are transmitted in a diversity transmission transmission manner.
- the first transmission resource is specifically a first CTU
- the second transmission resource is specifically a second CTU
- the third transmission resource is specifically Different from the first CTU and the third CTU of the second CTU, and the third CTU is located in a different contention access zone than the first CTU and the second CTU.
- the decoding unit is configured to: perform demodulation processing on the received first uplink data, and obtain the first uplink data corresponding to An initial log-likelihood ratio; performing demodulation processing on the received second uplink data to obtain an initial log likelihood ratio corresponding to the second uplink data; performing demodulation processing on the acquired joint encoded data, Obtaining a log likelihood ratio corresponding to the joint coded data; a log likelihood ratio corresponding to the joint coded data, an initial log likelihood ratio corresponding to the first uplink data, and an initial logarithm corresponding to the second uplink data a likelihood ratio, determining a final log likelihood ratio corresponding to the first uplink data and a final log likelihood ratio corresponding to the second uplink data; decoding a final log likelihood ratio corresponding to the first uplink data Processing, to obtain a decoding result corresponding to the first uplink data, and performing a decoding process on the final log likelihood ratio corresponding to the second uplink data
- the decoding unit is specifically configured to: perform a log likelihood ratio corresponding to the joint encoded data, and an initial corresponding to the first uplink data Determining the prior probability information of the first uplink data and the prior probability information of the second uplink data according to the log likelihood ratio and the initial log likelihood ratio corresponding to the second uplink data; Determining, according to the initial log likelihood ratio corresponding to the first uplink data, a final log likelihood ratio corresponding to the first uplink data; according to the prior uplink probability information of the second uplink data and the second uplink The initial log likelihood ratio corresponding to the data determines a final log likelihood ratio corresponding to the second uplink data.
- the acquiring unit is specifically configured to: acquire information about the first transmission resource and information of the third transmission resource; according to the first transmission The information of the resource and the information of the third transmission resource determine the second transmission resource; and acquire the joint encoded data transmitted on the second transmission resource.
- the index Indx CTU of the second CTU is determined by:
- Indx CTU (Sig 1 + Sig 2 ) mod N CTU ;
- Sig 1 is an index of a code resource included in the first transmission resource
- Sig 2 is an index of a code resource included in the third transmission resource
- an N CTU is a number of CTUs included in the current subframe.
- the code resource includes one of the following: a sparse code multiple access codebook, a low density signature group, and a code division multiple access code. group.
- the receiving unit is configured to receive, by the first terminal device, the second terminal device, respectively, by using an unlicensed transmission manner An uplink data and the second uplink data.
- the device is the network device.
- the eighth aspect provides another apparatus for transmitting uplink data, including: a determining unit, configured to determine that the first terminal device and the second terminal device perform transmit diversity transmission; and a sending unit, configured to the first terminal device and the The at least one terminal device of the second terminal device sends the first indication information, where the first indication information is used to indicate that the first terminal device and the second terminal device determined by the determining unit perform transmit diversity transmission.
- the determining unit is specifically configured to determine, according to the transmission reliability information of the first terminal device and the second terminal device, the first terminal device and the second terminal device Performing transmit diversity transmission, the transmission reliability information includes at least one of the following information: transmit diversity transmission capability information, current uplink channel quality information, and historical error rate information.
- the method and device for transmitting uplink data uses the transmit diversity transmission mechanism to transmit uplink data, and the first terminal device acquires the second terminal device.
- the second uplink data, the first uplink data to be sent and the second uplink data are jointly encoded to obtain joint coded data, and different transmission resources are used to send the first uplink data and the joint code to the network device respectively.
- the data can reduce the transmission delay while obtaining the transmit diversity gain.
- FIG. 1 is a schematic diagram of a communication system to which an embodiment of the present invention can be applied.
- FIG. 2 is a schematic diagram of a contention transmission unit in the communication system shown in FIG. 1.
- FIG. 3 is a schematic flowchart of a method for transmitting uplink data according to an embodiment of the present invention.
- FIG. 4 is a schematic diagram showing the distribution of a first contention transmission unit, a second contention transmission unit, and a third contention transmission unit in the method for transmitting uplink data shown in FIG.
- FIG. 5 is a schematic flowchart of a method for transmitting uplink data according to another embodiment of the present invention.
- FIG. 6 is a schematic flowchart of a method for transmitting uplink data according to another embodiment of the present invention.
- FIG. 7 is a schematic flowchart of a method for transmitting uplink data according to another embodiment of the present invention.
- FIG. 8 is a schematic block diagram of an apparatus for transmitting uplink data according to an embodiment of the present invention.
- FIG. 9 is a schematic block diagram of an apparatus for transmitting uplink data according to another embodiment of the present invention.
- FIG. 10 is a schematic block diagram of an apparatus for transmitting uplink data according to another embodiment of the present invention.
- FIG. 11 is a schematic block diagram of an apparatus for transmitting uplink data according to another embodiment of the present invention.
- FIG. 12 is a schematic block diagram of an apparatus for transmitting uplink data according to another embodiment of the present invention.
- FIG. 13 is a schematic block diagram of an apparatus for transmitting uplink data according to another embodiment of the present invention.
- FIG. 14 is a schematic block diagram of an apparatus for transmitting uplink data according to another embodiment of the present invention.
- FIG. 15 is a schematic block diagram of an apparatus for transmitting uplink data according to another embodiment of the present invention.
- GSM Global System of Mobile communication
- CDMA Code Division Multiple Access
- WCDMA Wideband Code Division Multiple Access
- GPRS General Packet Radio Service
- LTE Long Term Evolution
- FDD Frequency Division Duplex
- TDD Time Division Duplex
- UMTS Universal Mobile Telecommunication System
- WiMAX Worldwide Interconnected Microwave Access
- PLMN Public Land Mobile Network
- SCMA sparse code multiple access
- SCMA sparse code multiple access
- OFDM Orthogonal Frequency Division Multiplexing
- FBMC Filter Bank Multi-Carrier
- GFDM Generalized Frequency Division Multiplexing
- Filtered-OFDM Filtered-OFDM, F-OFDM system, etc.
- the terminal device may communicate with one or more core networks via a Radio Access Network (RAN), and the terminal device may be referred to as an access terminal and a user equipment (User Equipment, UE), subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user equipment.
- the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
- PLMN Public Land Mobile Network
- the network device may be used to communicate with the terminal device, and the network device may be a base station (Base Transceiver Station, BTS) in the GSM system or the CDMA system, or may be a base station in the WCDMA system ( NodeB, NB), may also be an evolved base station (Evolutional Node B, eNB or eNodeB) in the LTE system, or the network device may be a relay station, an access point, an in-vehicle device, a wearable device, or a network in a future 5G network.
- BTS Base Transceiver Station
- NodeB, NB NodeB
- Evolutional Node B, eNB or eNodeB evolved base station
- the network device may be a relay station, an access point, an in-vehicle device, a wearable device, or a network in a future 5G network.
- Next-generation mobile communication systems will not only support traditional communications, but will also support machine-to-machine (Machine to Machine, M2M) communication, or Machine Type Communication (MTC) communication.
- M2M Machine to Machine
- MTC Machine Type Communication
- the number of MTC devices connected to the network will reach 500 to 100 billion, which will far exceed the current number of connections.
- M2M services due to the wide variety of services, there is a big difference in network requirements. In general, there are several requirements: (I) reliable transmission, but not sensitive to delay; (II) low latency, high reliability transmission.
- V2V vehicle to vehicle
- a large number of connections require more resources to access the terminal device and need to consume more resources for the transmission of scheduling signaling related to the data transmission of the terminal device.
- FIG. 1 is a schematic structural diagram of a system 100 to which an embodiment of the present invention can be applied.
- the system 100 includes a network device 102 and a plurality of terminal devices 104-114 located within the coverage of the network device 102, wherein the network device 102 can be respectively connected to the plurality of terminal devices by wireless connection or wired connection or other means. And the network device 102 can support simultaneous transmission of multiple cellular carriers.
- FIG. 1 exemplarily shows one network device and six terminal devices.
- the system 100 may include multiple network devices and may include other numbers of terminal devices within the coverage of each network device. This example does not limit this.
- the network in the embodiment of the present invention may refer to a PLMN or a D2D network or an M2M network or other network.
- FIG. 1 is only a simplified schematic diagram of an example, and the network may also include other network devices, which are not shown in FIG.
- the network device 102 in the system 100 can adopt a Grant Free transmission scheme, which can be applied to uplink data transmission.
- the terminal device does not need to request the network device to allocate transmission resources through the scheduling request mode, but directly contends for resources and performs uplink data transmission, thereby reducing system signaling overhead and reducing transmission delay.
- An unauthorized transfer can be understood as any one or more of the following meanings, or as a combination of some of the various technical meanings:
- Unauthorized transmission may refer to: the network device pre-allocates and informs the terminal device of multiple transmission resources; when the terminal device has uplink data transmission requirements, multiple transmission resources pre-allocated from the network device Selecting at least one transmission resource, and transmitting the uplink data by using the selected transmission resource; and detecting, by the network device, the uplink data sent by the terminal device on the at least one of the pre-assigned multiple transmission resources.
- the detection may be blind detection, or may be detected according to one of the control domains in the uplink data, or may be detected by other means.
- This blind detection can be understood as the detection of data that may arrive without predicting whether or not data has arrived. This blind detection can also be understood as detection without explicit signaling indication.
- the unlicensed transmission may be: the network device pre-allocates and informs the terminal device of multiple transmission resources, so that when the terminal device has an uplink data transmission requirement, at least one transmission resource is selected from a plurality of transmission resources pre-allocated by the network device, and The uplink data is sent using the selected transmission resource.
- the unlicensed transmission may be: the terminal device acquires information of a plurality of pre-assigned transmission resources, and when there is an uplink data transmission requirement, selects at least one transmission resource from the plurality of transmission resources, and sends the selected transmission resource by using the selected transmission resource. Upstream data.
- the terminal device may obtain information about the multiple transmission resources in multiple manners. For example, the mapping relationship between the terminal device and the transmission resource may be defined in a protocol, or indicated by a network device by an instruction, and the like.
- the unlicensed transmission may refer to a method for realizing uplink data transmission of the terminal device without dynamic scheduling of the network device.
- the dynamic scheduling may refer to that the transmission resource of the terminal device needs to pass the signaling through the network device every time.
- the transmission resource may be one or more transmission time units of transmission resources after the time when the terminal device receives the signaling.
- a transmission time unit may refer to a minimum time unit for one transmission, such as a Transmission Time Interval (TTI), the value may be 1 ms, or may be a preset transmission time unit.
- TTI Transmission Time Interval
- implementing uplink data transmission of the terminal device may be understood as allowing data of two or more terminal devices to perform uplink data transmission on the same time-frequency resource.
- Unauthorized transmission may refer to: the terminal device performs uplink data transmission without requiring network device authorization.
- the authorization may be that the terminal device sends an uplink scheduling request to the network device, and after receiving the scheduling request, the network device sends an uplink grant (UL grant) to the terminal device, where the uplink grant is used to indicate the uplink transmission allocated to the terminal device. Resources.
- the unlicensed transmission may be a competitive transmission mode. Specifically, multiple terminal devices may simultaneously perform uplink data transmission on the same time-frequency resources allocated in advance, without requiring network devices to perform authorization.
- the foregoing data may be included in service data or signaling data.
- the transmission resources may include, but are not limited to, a combination of one or more of the following resources: time domain resources, such as radio frames, subframes, symbols, etc.; frequency domain resources, such as subcarriers, resource blocks, etc. ; spatial domain resources, such as transmit antennas, beams, etc.; code domain resources, such as Sparse Code Multiple Access (SCMA) codebook, Low Density Signature (LDS) sequence, CDMA code, etc.; Pilot resources.
- time domain resources such as radio frames, subframes, symbols, etc.
- frequency domain resources such as subcarriers, resource blocks, etc.
- spatial domain resources such as transmit antennas, beams, etc.
- code domain resources such as Sparse Code Multiple Access (SCMA) codebook, Low Density Signature (LDS) sequence, CDMA code, etc.
- pilot resources such as Pilot resources.
- a Contention Transmission Unit may be a basic transmission resource for unauthorized transmission.
- a CTU may refer to a transmission resource combining time, frequency, and code domain, or may refer to a combination of time, frequency, and pilot transmission, or may refer to a transmission resource combining time, frequency, code domain, and pilot.
- the access area of the CTU may refer to an access area corresponding to the CTU.
- the above transmission resources may be transmitted according to, but not limited to, the following control mechanisms: uplink power control, such as uplink transmission power upper limit control, etc.; modulation and coding mode setting, such as transmission block size, code rate, modulation order setting, etc.; retransmission mechanism .
- uplink power control such as uplink transmission power upper limit control, etc.
- modulation and coding mode setting such as transmission block size, code rate, modulation order setting, etc.
- retransmission mechanism retransmission mechanism .
- At least one contention access zone is defined in the time frequency domain, and the CAR may also be referred to as an access zone of the CTU or other names of the same and similar meanings, wherein the CAR may Refers to a time-frequency region for unlicensed transmission.
- Different CARs may respectively correspond to different time-frequency resources, and each CAR may further include at least one Contention Transmission Unit (CTU).
- the CTU may be a basic transmission resource unit of the unlicensed transmission, and the CTU may be a combination of at least one of time, frequency, code, and pilot resources.
- the CTU may be a combination of time, frequency, and code domain resources.
- the transmission resource may be a transmission resource composed of a combination of time, frequency, and pilot resources, or may be a transmission resource composed of a combination of time, frequency, code domain, and pilot resources, but the embodiment of the present invention is not limited thereto.
- Patent Application No. PCT/CN2014/073084 entitled “System and Method for Uplink Grant-free Transmission Scheme", provides a technical solution for grant-free transmission, in which transmission resources can be divided into different CTUs, each The CTUs may be assigned a set of codes, and the assigned set of codes may be CDMA codes, or may be SCMA codebooks or LDSs or signatures, etc., and optionally, each code may correspond to a set of pilots.
- the terminal device 104-114 may report its own capability information to the network device 102, where the capability information may include information indicating whether the device has the capability of unauthorized transmission.
- the network device 102 can communicate with the terminal device by using an unlicensed transmission mechanism or a traditional request-authorization mechanism according to the capability information reported by each terminal device.
- the network device 102 can notify the terminal device of necessary information for unauthorized transmission.
- the network device 102 can instruct the terminal device to perform unauthorized transmission, and send search space information, CAR information, CTU information, modulation and coding mode information, and the like to the terminal device.
- the mapping rules may be predefined or configured by the network device.
- the terminal device may select one code and one pilot in the pilot group corresponding to the code for uplink transmission, but the embodiment of the present invention does not limit this.
- FIG. 2 exemplarily shows four CARs 202-208, wherein the system available bandwidth is divided into a plurality of different time frequency regions, each CAR occupies a different resource block, wherein, optionally, each CAR occupancy
- the number of resource blocks can be predefined, for example, the resource block Resource Block, RB) 1-4 of the CAR 202 occupied frequency band.
- each CAR may be further divided into at least one CTU, where each CTU is a combination of a specific time, frequency, signature, and pilot.
- Each CAR in FIG. 2 corresponds to the same CTU mapping relationship, where It is to be noted that the mapping relationship of four CARs is respectively shown from different angles, but the embodiment of the present invention is not limited thereto.
- each CAR supports six signatures (S1-S6), and each signature can correspond to six pilots, thus constituting 36 pilots (P1-P36), corresponding to 36 CTUs, but The embodiment of the invention is not limited thereto.
- FIG. 2 exemplarily shows four CARs and each CAR includes 36 CTUs, but embodiments of the present invention may also include other numbers of CARs and each CAR may include other numbers of CTUs, embodiments of the present invention There is no limit to this.
- the embodiment of the present invention provides an uplink transmit diversity transmission mechanism.
- the mechanism if at least two terminal devices respectively have uplink data to be transmitted to the network device, for example, data 1, ..., data N, N ⁇ 2, the at least two terminal devices may respectively send corresponding correspondences to the network device respectively.
- Uplink data, and the uplink data corresponding to the at least two terminal devices are respectively subjected to encoding processing (for example, XOR processing or turbo encoding processing, etc.), and then sent to the network device.
- encoding processing for example, XOR processing or turbo encoding processing, etc.
- the uplink data corresponding to the at least two terminal devices may be jointly encoded by the one or more terminal devices of the at least two terminal devices, that is, the uplink data corresponding to the at least two terminal devices are encoded together. Processing and transmitting the joint encoded data obtained by the encoding process to the network device. In this way, the network device can receive the data 1, ..., the data N, and receive the jointly encoded data respectively sent by the at least one of the at least two terminal devices, wherein the joint encoded data is through the data 1 to Data N is obtained by encoding processing.
- the network device can obtain partial information corresponding to the data 1, ..., the data N, respectively, from the received joint encoded data, and each part of the information obtained from the received joint encoded data and each received from the received
- the information obtained in the separately transmitted data i is combined, thereby improving the probability that the network device successfully receives the uplink data respectively sent by the at least two terminal devices, and improving the reliability of the uplink data transmission.
- the terminal device directly sends the joint encoded data to the network device, there is no need to wait for the feedback sent by the network device to indicate that the uplink data is not successfully received, so the transmission delay can be reduced compared with the prior art.
- FIG. 3 shows a method 300 for transmitting uplink data according to an embodiment of the present invention, which may be performed by a first terminal device.
- the first terminal device may acquire the second uplink data from the network device or the second terminal device.
- the first terminal device may acquire the second uplink data of the second terminal device when determining that the second terminal device performs the transmit diversity transmission; or the first terminal device may obtain the second Determining, by the second terminal device, the transmit diversity transmission with the second terminal device; or the first terminal device may obtain the second when determining the transmit diversity transmission with the second terminal device
- the second uplink data of the terminal device is not limited in this embodiment of the present invention.
- the first terminal device may perform encoding processing, such as network coding or turbo coding, together with the second uplink data to obtain joint coded data.
- encoding processing such as network coding or turbo coding
- the first uplink data is sent to the network device by using the first transmission resource
- the joint coded data is sent to the network device by using a second transmission resource different from the first transmission resource.
- the first terminal device may perform encoding processing on the first uplink data, and send the first uplink data after the encoding process to the network device by using the first transmission resource, and send the joint coding to the network device by using the second transmission resource.
- the second terminal device can also be the second The uplink data is encoded, and the second uplink data is sent to the network device by using the third transmission resource, where the third transmission resource may be different from the second transmission resource, and optionally, the The third transmission resource and the first transmission resource may be the same or different transmission resources, but the embodiment of the present invention is not limited thereto.
- the uplink data refers to data that is sent by the terminal device to the network device through the uplink transmission link, but the embodiment of the present invention is not limited thereto.
- the first terminal device and the second terminal device transmit uplink data by using a transmit diversity transmission mechanism, and the first terminal device acquires second uplink data of the second terminal device, and treats The first uplink data and the second uplink data are jointly encoded to obtain joint coded data, and different transmission resources are used to separately send the first uplink data and the joint coded data to the network device, which can be obtained. Transmit diversity gain while reducing transmission delay.
- the second terminal device may be specifically one or more terminal devices.
- the first terminal device may perform transmit diversity transmission with the second terminal device in one or more uplink data transmissions, for example, the first terminal device may Performing transmit diversity transmission with the second terminal device each time the uplink data transmission is performed; or, the first terminal device performs transmit diversity transmission with other terminal devices different from the second terminal device when performing one or more uplink transmissions Or, the first terminal device adopts a non-transmission diversity manner in one or more uplink data transmissions, which is not limited in this embodiment of the present invention.
- the first terminal device may determine to perform transmit diversity transmission with the second terminal device in multiple manners.
- the network device indicates by signaling; or, by broadcasting the request and receiving the response in a D2D manner; or the network device groups the at least one terminal device of the service, the first terminal device may be associated with other components in the group
- the terminal device performs the transmit diversity transmission, and the like, which is not limited by the embodiment of the present invention.
- the method 300 further includes:
- the network device may be configured according to information about the first terminal device and the second terminal device, for example, capability information (eg, whether it has the capability of transmitting diversity transmission), whether there is a willingness to perform transmit diversity transmission, and service type information.
- capability information eg, whether it has the capability of transmitting diversity transmission
- service type information e.g., whether there is a willingness to perform transmit diversity transmission
- Current uplink channel quality information or transmission reliability Historical information eg, bit error rate), etc., determines that the first terminal device and the second terminal device perform transmit diversity transmission.
- the network device may further determine, by using the first terminal device and the second terminal device, the joint coding data, eg, according to the first terminal device And determining, by the first terminal device and the second terminal device, at least one target terminal device for transmitting the jointly encoded data, and the first indication, and the capability information of the second terminal device, the current channel quality information, and the like.
- the information may also be used to indicate at least one target terminal device for transmitting the joint encoded data in the first terminal device and the second terminal device, but the embodiment of the present invention is not limited thereto.
- the network device may actively make a decision that the first terminal device and the second terminal device perform transmit diversity transmission; or, according to the received
- the transmit diversity request sent by the first terminal device and/or the second terminal device determines a transmit diversity transmission of the first terminal device and the second terminal device.
- the decision may be dynamically changed, that is, the first indication information is only applicable to the current uplink data transmission, or is semi-static, that is, the first indication information is applicable to uplink data transmission within a period of time (until the next reception)
- the embodiment of the present invention is not limited thereto.
- the first indication information may be carried in the high layer signaling or the physical layer signaling, for example, explicitly or implicitly indicated by the downlink control channel, but the embodiment of the present invention is not limited thereto.
- the first indication information may include group identification information of the second terminal device group to which the second terminal device belongs, or further include the first terminal device to which the first terminal device belongs.
- the group identification information of the first terminal device group, wherein the first terminal device group and the second terminal device group may be the same or different groups.
- the first indication information may further include the second terminal.
- the number information of the device in the second terminal device group where the number information may be specifically a short identifier, and the second terminal device may be uniquely identified in the second terminal device group, and therefore, the first indication information is included Compared with the identification information of the second terminal device (for example, the device identifier, the user identifier, the cell wireless network temporary identifier, and the like), the overhead of the first indication information can be reduced.
- the first indication information may include only the first Number information of the terminal device in the terminal device group, and correspondingly, the network The network device may determine the second terminal device according to the group identification information and the encoding information, or the first indication information may further include group identification information of the terminal device group and/or the first terminal device is in the terminal device group
- the numbering information the embodiment of the present invention is not limited thereto.
- the method 300 further includes:
- the first terminal device may determine, when the last uplink data transmission fails, determine that the transmit diversity transmission needs to be performed, and send the transmit diversity transmission request, or send the transmit diversity transmission request when determining the uplink data to be transmitted, the present invention
- the embodiment is not limited to this.
- the first terminal device may send the transmit diversity transmission request in a D2D manner.
- the first terminal device may broadcast the transmit diversity transmission request, or if the first terminal device belongs to a certain terminal device group, the first terminal device may group the at least one other user device included in the terminal device Multicasting the transmit diversity transmission request, or the first terminal device may unicast the transmit diversity transmission request to each of the at least one terminal device, including the second terminal device, in the embodiment of the present invention. This is not limited.
- the transmit diversity transmission request may carry at least one of the following information: identity information of the first terminal device, capability information, service type information, information of uplink data to be transmitted, and transmission resource information, or the transmission
- the diversity transmission request may also carry other information, which is not limited in this embodiment of the present invention.
- the terminal device receiving the transmit diversity transmission request may determine whether or not according to the transmit diversity transmission request and its own situation (eg, history information of uplink data transmission, capability of transmitting diversity transmission, transmission resource information, etc.)
- the first terminal device performs transmit diversity transmission. If it is agreed to perform transmit diversity transmission with the first terminal device, the transmit diversity transmission response may be sent to the first terminal device in a unicast, multicast, or broadcast manner.
- the first terminal device may determine, according to the received transmit diversity transmission response, which one or more terminal devices perform transmit diversity transmission.
- the transmit diversity transmission response may carry at least one of the following information: identifier information of the second terminal device, uplink data and transmission resource information to be transmitted by the second terminal device, or the transmit diversity transmission response. Can carry other information, the present invention The embodiment does not limit this.
- the transmit diversity transmission request may also be sent by the second terminal device.
- the first terminal device may receive a transmit diversity transmission request sent by the second terminal device, determine, according to the transmit diversity transmission request, transmit diversity transmission with the second terminal device, and send the transmit to the second terminal device.
- the diversity transmission response but the embodiment of the invention is not limited thereto.
- the first terminal device and/or the second terminal device may further send second indication information to the network device, to indicate that the first terminal device and the second terminal device transmit Diversity transmission.
- the method 300 further includes: sending, to the network device, second indication information, where the second indication information is used to indicate that the first terminal device performs transmit diversity transmission with the second terminal device.
- the second indication information may indicate, explicitly or implicitly, that the first terminal device and the second terminal device perform transmit diversity transmission.
- the first terminal device may perform a Cyclic Redundancy Check (CRC) process when transmitting the first uplink data and/or the joint coded data, that is, the first uplink data and And/or jointly coding the data to add a CRC code, and scrambling the CRC code by using the identifier of the second terminal device to implicitly instruct the first terminal device and the second terminal device to perform diversity transmission transmission.
- CRC Cyclic Redundancy Check
- the method 300 further includes:
- the first terminal device sends the first uplink data to which the CRC code is added to the network device.
- the network device performs scrambling on the CRC code of the first uplink data by using the identifier of the second terminal device, and determines that the first terminal device and the second terminal device perform transmit diversity transmission.
- the second terminal device may also use the identifier of the first terminal device to scramble the CRC code of the second uplink data to indicate the second uplink when the second uplink data is sent to the network device. Data is transmitted in transmit diversity.
- the first terminal device and/or the second terminal device may also be instructed in other manners, which is not limited in this embodiment of the present invention.
- the first terminal device can obtain the second uplink data of the second terminal device in multiple manners.
- the S310, the acquiring the second uplink data of the second terminal device includes: receiving, by using the D2D transmission, the second uplink data sent by the second terminal device.
- the second terminal device may send the first terminal device by using an in-band or out-of-band transmission manner.
- the second uplink data that is, the second terminal device may send the second uplink data to the first terminal device by using an authorized carrier or an unlicensed carrier, and further, the second terminal device may send the second terminal device in a unicast or broadcast manner.
- the second uplink data is not limited in this embodiment of the present invention.
- the transmit diversity transmission response may carry the second uplink data to reduce signaling interaction between the first terminal device and the second terminal device, but the embodiment of the present invention is not limited thereto.
- the first terminal device may perform joint coding processing on the first uplink data and the second uplink data to obtain joint encoded data, where the encoding process may be XOR processing, for example, assuming the first uplink data.
- the second uplink data is m 2
- the first terminal device may perform network coding on m 1 and m 2 to obtain joint coded data m 3 , where For XOR operation.
- the first terminal device may perform other coding processing, for example, turbo coding, and the like, together with the first uplink data and the second uplink data, which is not limited by the embodiment of the present invention.
- the first terminal device sends the first uplink data and the joint encoded data to the network device by using different transmission resources, where the first transmission resource is different from the second transmission resource, and the first transmission may be referred to as the first transmission.
- the resource is different from at least one of the following resources included in the second transmission resource: time, frequency, code, and pilot.
- the first transmission resource and the second transmission resource may correspond to the same time-frequency resource, but Corresponding to different code resources; or the first transmission resource and the second transmission resource correspond to the same time-frequency resource and code resource, but correspond to different pilot resources, but the embodiment of the present invention is not limited thereto.
- the method 300 further includes: transmitting, by the D2D transmission, the first uplink data to the second terminal device, so that the second terminal device can perform a similar process, that is, the first uplink data and the second uplink.
- the data is subjected to joint coding processing to obtain joint coded data, and the joint coded data is transmitted to the network device, but the embodiment of the present invention is not limited thereto.
- the first terminal device may first determine a first transmission resource that is used when the first uplink data is sent, and then determine, according to the first transmission resource, a second transmission resource that is used when the joint coded data is sent.
- the method 300 before the sending the joint encoded data, the method 300 further includes:
- the first terminal device may obtain the information of the third transmission resource from the message sent by the second terminal device.
- the transmit diversity transmission response carries the information of the third transmission resource.
- the second terminal device may send the second uplink data and the information of the third transmission resource in the same or different messages, but the embodiment of the present invention is not limited thereto.
- the information of the third transmission resource may include at least one of a time, a frequency, a code, and a pilot resource used when the second uplink data is sent, where, in the embodiment of the present invention, the code resource may include At least one of the following: a sparse code multiple access codebook, a low-density signature sequence, and a code division multiple access code, it should be understood that the specific examples listed above as code domain resources are merely exemplary, and the present invention is not As defined herein, other codebooks that can be used for transmission fall within the scope of the present invention.
- the SCMA codebook includes at least two codewords, and the SCMA codebook is used to indicate a mapping relationship between at least two data combinations and the at least two codewords, where the codeword is a multi-dimensional complex vector for indicating data and multiple modulations.
- a mapping relationship between symbols, the modulation symbol comprising at least one zero modulation symbol and at least one non-zero modulation symbol.
- SCMA is a non-orthogonal multiple access technology.
- SCMA is a non-orthogonal multiple access technology.
- the SCMA technology uses a codebook to transmit multiple different data streams on the same resource unit (ie, multiple different data streams multiplex the same resource unit), wherein different data streams use different codebooks, thereby achieving resource enhancement.
- the purpose of utilization. Data streams can come from the same user device or from different user devices.
- a codeword can be represented as a multi-dimensional complex vector having a dimension of two or more dimensions for representing a mapping relationship between data and two or more modulation symbols, the modulation symbol including at least one The zero modulation symbol and the at least one non-zero modulation symbol, the relationship between the zero modulation symbol and the non-zero modulation symbol may be zero, the number of modulation symbols is not less than the number of non-zero modulation symbols, and the data may be binary bit data or multi-dimensional data.
- the codebook is composed of two or more codewords, and the codewords included in the codebook may be different from each other.
- the codebook may represent a mapping relationship between a possible data combination of a certain length of data and a codeword in a codebook, and the mapping relationship may be a direct mapping relationship.
- SCMA technology directly maps data in a data stream to a codebook according to a certain mapping relationship.
- the codeword is a multi-dimensional complex vector that implements extended transmission of data over multiple resource elements.
- the direct mapping relationship in SCMA technology can be understood as the data in the data stream does not need to be mapped to intermediate modulation symbols, or there are other intermediate processes.
- the data here may be binary bit data or multi-dimensional data, and multiple resource units may be resource elements in a time domain, a frequency domain, an air domain, a time-frequency domain, a spatio-temporal domain, and a time-frequency spatial domain.
- the codeword used by the SCMA may have a certain sparsity.
- the number of zero elements in the codeword may be no less than the number of modulation symbols, so that the receiving end can utilize the multi-user detection technique to perform lower complexity decoding.
- the relationship between the number of zero elements listed above and the modulation symbol is only an exemplary description of sparsity, and the present invention is not limited thereto, and the ratio of the number of zero elements to the number of non-zero elements can be arbitrarily set as needed.
- the LDS sequence is a multi-dimensional complex vector including at least one zero element and at least one non-zero element, the signature sequence is used for adjusting the amplitude and phase of the modulation symbol, after the constellation mapping of the data by the modulation constellation owned.
- the LDS technology is also a non-orthogonal multiple access and transmission technology.
- the LDS technology can also be called another name in the field of communication.
- This type of technology superimposes O (O is an integer not less than 1) data streams from one or more users onto P (P is an integer not less than 1) subcarriers, where each data stream is transmitted. The data is spread to P subcarriers by sparse spreading.
- O is an integer not less than 1
- P is an integer not less than 1 subcarriers, where each data stream is transmitted.
- the data is spread to P subcarriers by sparse spreading.
- O is an integer not less than 1
- P is an integer not less than 1
- this type of technology can effectively improve network capacity, including the number of users that can be accessed by the system and the spectrum efficiency. Therefore, as an important non-orthogonal access technology, LDS technology has attracted more and more attention and become an important alternative access technology for the evolution of wireless cellular networks in the future.
- the information about the third transmission resource may include the information of the code resource.
- the first terminal device may optionally use the code resource included in the first transmission resource and the third transmission.
- the information of the code resource included in the resource determines the second transmission resource, but the embodiment of the present invention is not limited thereto.
- the first terminal device and the second terminal device may perform transmit diversity transmission by using an unlicensed transmission mechanism, that is, the first terminal device sends the first uplink data and the joint code by using an unlicensed transmission mode. Data, the second terminal device sends the second uplink data by using an unlicensed transmission mode.
- the transmission resources of the system may be divided into different CTUs, and correspondingly, different transmission resources may correspond to different CTUs.
- the first transmission resource may be specifically a first CTU
- the second transmission resource may be specifically a second CTU, where The three transmission resources may be specifically a third CTU.
- the second CTU may be different from the first CTU and the third CTU, and the first CTU and the second CTU may be the same or different.
- any two CTUs of the first CTU, the second CTU, and the third CTU may belong to the same or different contention access areas, where the contention access area to which the second CTU belongs is different.
- the first CTU and the third CTU belong to the contention access zone, a higher diversity gain can be obtained, but the embodiment of the present invention is not limited thereto.
- the first terminal device may determine the first CTU and the second CTU by using a certain mapping rule.
- the index Indx CTU1 of the first CTU may be determined by:
- the Sig 1 is an index of the code resource included in the first transmission resource
- the N CTU is the number of the CTUs in the current subframe.
- the current subframe may be specifically the subframe occupied when the first uplink data is sent. .
- the second terminal device may also determine the third CTU by the same mapping rule.
- the index Indx CTU3 of the third CTU can be determined by:
- the Sig 2 is an index of the code resource included in the third transmission resource
- the N CTU is the number of CTUs in the current subframe, that is, the subframe occupied when the second uplink data is sent.
- the first terminal device may determine the second CTU according to the code resource included in the first CTU and the code resource included in the third CTU.
- the index Indx CTU2 of the second CTU may be determined by:
- Indx CTU2 (Sig 1 + Sig 2 ) mod N CTU (3)
- the first terminal device and the second terminal device may further determine the first CTU, the second CTU, or the third CTU according to other functional forms or other transmission resource information, eg, according to the first terminal device.
- the identifier of the second terminal device and the identifier of the second terminal device determine the second CTU, but the embodiment of the present invention does not limit this.
- the network device may determine whether the first uplink data and the second uplink data are successfully received, if If the network device successfully receives the first uplink data and the second uplink data, the current transmit diversity transmission ends, or the network device may send the first terminal device and/or the second terminal device to indicate successful reception.
- the network device may send feedback information (eg, NACK) indicating that the terminal device is not successfully received to the first terminal device and/or the second terminal device, and accordingly, the first terminal device and/or the second terminal device may perform Data retransmission is performed in a conventional manner or in a transmit diversity transmission manner. For example, if the first terminal device receives the feedback information that is sent by the network device to indicate that the first uplink data is not successfully received, the first terminal device may retransmit the first uplink data to the network device according to the feedback information. For example, the first uplink data is retransmitted in a conventional manner, but the embodiment of the present invention is not limited thereto.
- the first terminal device and the second terminal device transmit uplink data by using a transmit diversity transmission mechanism, and the first terminal device acquires second uplink data of the second terminal device, and treats The first uplink data and the second uplink data are jointly encoded to obtain joint coded data, and different transmission resources are used to separately send the first uplink data and the joint coded data to the network device, which can be obtained. Transmit diversity gain while reducing transmission delay.
- FIG. 4 shows an example of the distribution of the first CTU, the second CTU, and the third CTU, but the embodiment of the present invention is not limited thereto.
- the foregoing may be described by taking the first uplink data, the second uplink data, and the joint coded data in the same subframe as an example. In the embodiment of the present invention, different subframes may also be used.
- the embodiment of the present invention does not limit the at least two types of data of the first uplink data, the second uplink data, and the joint coded data.
- the first terminal device and the second terminal device transmit uplink data by using a transmit diversity transmission mechanism, and the first terminal device acquires second uplink data of the second terminal device, and treats The first uplink data and the second uplink data are jointly encoded to obtain joint coded data, and different transmission resources are used to separately send the first uplink data and the joint coded data to the network device, which can be obtained. Transmit diversity gain while reducing transmission delay.
- FIG. 5 illustrates a method 400 of transmitting uplink data according to another embodiment of the present invention.
- the method 400 can be performed by a second terminal device.
- the second terminal device can determine the transmission resource of the uplink data in multiple manners. For example, when the second terminal device sends the uplink data to the network device by using an unlicensed transmission mode, the transmission resource of the uplink data may be determined by using the foregoing formula (2), or may be determined according to the identifier of the second terminal device. For the transmission resource of the uplink data, the manner in which the second terminal device determines the transmission resource is not limited in the embodiment of the present invention.
- the second terminal device may send uplink data to be transmitted to the network device to the first terminal device and use the uplink data to be sent by the second terminal device to the network device when determining that the first terminal device performs the transmit diversity transmission Information about the transmission resources.
- the second terminal device may actively send the uplink data to the first terminal device, for example, the second terminal device determines that it does not have the capability or condition for transmitting joint coded data (eg, current power, to be transmitted) Sending the uplink data to the first terminal device when the size of the uplink data is equal, or the like, or the second terminal device may also send, according to the network device, the indication that the joint coded data is sent by the first terminal device or
- the first terminal device assists the second terminal device to send an indication of the uplink data, and sends the uplink data to the first terminal device; or the second terminal device may also negotiate with the first terminal device, for example, receiving the The request sent by the first terminal device sends the uplink data to the first terminal device, which is not limited in this embodiment of the present
- the first terminal device may perform joint coding processing on the received uplink data sent by the second terminal device and the uplink data of the first terminal device to obtain joint coded data, and send the joint coded data to the network device.
- the second terminal device may further send the information about the transmission resource to the first terminal device, where the information of the transmission resource is used to indicate the transmission used when the second terminal device sends the uplink data to the network device. And a resource, so that the first terminal device determines, according to the information of the transmission resource, a transmission resource used when transmitting the joint encoded data.
- the uplink data is sent to the network device by using the transmission resource.
- the first terminal device and the second terminal device transmit uplink data by using a transmit diversity transmission mechanism, and the second terminal device sends second uplink data to the first terminal device and And the information about the transmission resource of the second uplink data, so that the first uplink data to be transmitted by the first terminal device and the second uplink data sent by the second terminal device are jointly encoded to obtain joint coding.
- Data, and different transmission resources are used to respectively send the first uplink data and the joint coded data to the network device, and the second terminal device sends the second uplink data to the network device, to obtain a transmit diversity gain. At the same time reduce the transmission delay.
- the method 400 further includes:
- the first indication information is further used to indicate that the joint coding data is sent by the first terminal device, and correspondingly, the second terminal device may send, to the first terminal device, a to-be-transmitted according to the first indication information.
- the uplink data but the embodiment of the present invention is not limited thereto.
- the first indication information may be indicated explicitly or implicitly.
- the network device may group multiple terminal devices, and the first terminal device and the second terminal device may belong to the same or different packets.
- the first indication information includes group identification information of the terminal device group to which the first terminal device belongs and number information of the first terminal device in the terminal device group.
- the first indication information may further include group identification information of the second terminal device group where the first terminal device is located and number information of the first terminal device in the second terminal device group.
- the method 400 further includes:
- the method 400 further includes transmitting a transmit diversity transmission response to the first terminal device.
- the second terminal device may determine, according to the transmit diversity transmission request, or according to the uplink transmission information of the second terminal device (current uplink channel quality, previous uplink transmission success, historical error rate, etc.)
- the first terminal device performs transmit diversity transmission, but the embodiment of the present invention is not limited thereto.
- the transmit diversity transmission response may carry the uplink data to be transmitted and/or the information of the transmission resource, but the embodiment of the present invention is not limited thereto.
- the transmit diversity transmission may also be initiated by the second terminal device.
- the method further includes:
- the first terminal device and the second terminal device may also report the transmission mode to the network device. Accordingly, prior to S420, the method 400 further includes:
- the second indication information is sent to the network device, where the second indication information is used to indicate that the first terminal device performs transmission diversity transmission with the second terminal device.
- the second indication information may be used to explicitly or implicitly instruct the first terminal device to perform transmit diversity transmission with the second terminal device.
- the second terminal device may add a CRC code to the uplink data, and perform scrambling on the CRC code by using the identifier of the first terminal device, and send the CRC code to the network device.
- the uplink data is used to implicitly indicate that the uplink data is transmitted in the transmit diversity manner with the uplink data sent by the first terminal device.
- the first terminal device may also send, to the network device, first uplink data that adds a CRC code that is scrambled by using the identifier of the second terminal device, to indicate that the first uplink data is related to the second terminal device.
- the uplink data is sent in a transmit diversity manner, which is not limited in this embodiment of the present invention.
- the second terminal device may carry the uplink data to be transmitted and the information of the transmission resource in the same or different messages, and further, the second terminal device may use an authorized carrier or an unlicensed carrier.
- the first terminal device sends the uplink data or the information of the transmission resource, and the embodiment of the present invention is not limited thereto.
- S420 sending uplink data and information about the transmission resource to the first terminal device, including:
- the uplink data and the information of the transmission resource are sent to the first terminal device by D2D transmission.
- the information of the transmission resource may include information of at least one of time, frequency, code, and pilot.
- the second terminal device may send the uplink data in an unlicensed transmission manner.
- the second terminal device may map the uplink data to a certain CTU by using a certain mapping rule, and send the uplink data by using the CTU.
- the information of the transmission resource may include at least one of an index of a CTU, an index of a code resource, an identifier of a second terminal device, and a pilot index, and the like. Limited to this.
- the information of the transmission resource may include information of the code resource, so that the first terminal device may determine, according to the information of the code resource, the second transmission resource used when transmitting the joint coded data, but the implementation of the present invention is implemented.
- the example is not limited to this.
- the code resource may comprise one of the following: a sparse code multiple access codebook, a low density signature sequence, and a code division multiple access code.
- the code resource may have other forms, which are not limited by the embodiment of the present invention.
- the method 400 further includes: acquiring first uplink data of the first terminal device, and jointly coding the first uplink data with the uplink data of the second terminal device to obtain The data is jointly encoded, and the joint encoded data is transmitted to the network device using a transmission resource different from the uplink data of the second terminal device.
- the second terminal device may receive the first uplink data sent by the first terminal device by using a D2D technology, but the embodiment of the present invention is not limited thereto.
- the first terminal device and the second terminal device transmit uplink data by using a transmit diversity transmission mechanism, and the second terminal device sends second uplink data to the first terminal device and The second transmission resource information, so that the first uplink data to be transmitted by the first terminal device and the received second uplink data sent by the second terminal device are jointly encoded to obtain joint coded data, and The different transmission resources are respectively used to send the first uplink data and the joint coded data to the network device, and the second terminal device sends the second uplink data to the network device, which can be reduced while obtaining the transmit diversity gain. Transmission delay.
- FIG. 6 illustrates a method 500 of transmitting uplink data according to another embodiment of the present invention.
- the method 500 can be performed by a network device.
- S510 Receive first uplink data that is sent by the first terminal device by using the first transmission resource, and second uplink data that is sent by the second terminal device by using the third transmission resource.
- the first terminal device and the second terminal device may separately send the first uplink data and the second uplink data to the network device in an unlicensed manner or a traditional authorization manner, which is not limited in this embodiment of the present invention. .
- the first transmission resource may be the same or different transmission resource as the third transmission resource.
- the second transmission resource is different from the first transmission resource.
- the second transmission resource may also be a transmission resource different from the third transmission resource, which is not limited in this embodiment of the present invention.
- the network device can obtain the packet in the joint encoded data according to the received joint encoded data. a portion corresponding to the first uplink data and a portion corresponding to the second uplink data; combining the portion corresponding to the first uplink data with the received first uplink data to obtain a diversity gain of the first uplink data; and combining the portion corresponding to the second uplink data with the received second uplink data to obtain a diversity gain for the second uplink data, but the embodiment of the present invention Not limited to this.
- the network device receives the uplink data transmitted by the first terminal device and the second terminal device by using the transmit diversity transmission mechanism according to the method for transmitting the uplink data, where the network device receives the first terminal device and the The first uplink data and the second uplink data respectively sent by the second terminal device acquire joint coded data obtained by jointly coding the first uplink data and the second uplink data, and receive the received data according to the joint coded data.
- the first uplink data and the second uplink data are decoded, and the transmission delay can be reduced while obtaining the transmit diversity gain.
- the method 500 further includes:
- the first indication information is sent to the at least one of the first terminal device and the second terminal device, where the first indication information is used to indicate that the first terminal device and the second terminal device perform transmit diversity transmission.
- the network device may determine whether the first terminal device and the second terminal device perform transmit diversity transmission either actively or passively (eg, according to the request of the first terminal device and/or the second terminal device).
- determining that the first terminal device and the second terminal device perform transmit diversity transmission including:
- the transmission reliability information includes at least one of the following information: Diversity transmission capability, current uplink channel quality information, and historical error rate information.
- the first terminal device and the second terminal device may determine to perform transmit diversity transmission by using a negotiation, and correspondingly, before S510, the method 500 further includes:
- the network device determines, according to the second indication information, that the first terminal device and the second terminal device perform transmit diversity transmission.
- the second indication information is further
- the network device may be further configured to determine at least one of the first transmission resource, the second transmission resource, and the third transmission resource, and correspondingly, the network device may determine the first transmission resource according to the indication of the second indication information.
- At least one of the second transmission resource and the third transmission resource; or the network device may determine the first uplink data and the second uplink data according to a mapping rule configured in advance or configured by the network device.
- the first transmission resource, the second transmission resource, and the third transmission resource respectively corresponding to the joint coded data are not limited in this embodiment of the present invention.
- the first terminal device may use the identifier of the second terminal device to scramble the CRC code added for the first uplink data, and/or the second terminal device adopts the first terminal.
- the identifier of the device is used to scramble the CRC code added to the second uplink data to implicitly indicate that the first uplink data is sent in the diversity transmission manner and the second uplink data, that is, the first terminal device and The second terminal device performs diversity transmission transmission.
- the method 500 further includes:
- the determining condition of the diversity transmission transmission is satisfied, and the determining condition of the diversity transmission transmission includes at least one of the following: the cyclic redundancy check CRC code corresponding to the first uplink data is added by using the identifier of the second terminal device The CRC code corresponding to the second uplink data is scrambled by using the identifier of the first terminal device;
- the judgment condition of the diversity transmission transmission it is determined that the first uplink data and the second uplink data are sent in a diversity transmission transmission manner.
- the first terminal device and/or the second terminal device may further indicate that the first terminal device and the second terminal device of the network device perform diversity transmission and transmission in other implicit or explicit manners. Not limited.
- S520 acquiring joint coding data that is sent by the first terminal device by using a second transmission resource different from the first transmission resource, includes:
- the network device may perform blind detection, and determine the first transmission resource and the third transmission resource according to the blindly detected first uplink data and the second uplink data. Then, the network device may determine the second transmission resource according to the first transmission resource and the third transmission resource by using the same rule as the terminal device side, and detect the joint coding transmitted by using the second transmission resource. Data, for example, the network device may determine the second transmission resource according to the code resource included in the first transmission resource and the code resource included in the third transmission resource; or the network device may extract and use the detected uplink data.
- the joint encoded data transmitted by the second transmission resource is not limited to this embodiment of the present invention.
- the first terminal device and the second terminal device may perform transmit diversity transmission by using an unlicensed transmission mechanism.
- the first transmission resource is specifically a first CTU
- the second transmission resource is specifically a second CTU
- the third transmission resource is specifically a third CTU different from the first CTU and the second CTU
- the third CTU is located in a different contention access zone than the first CTU and the second CTU.
- the network device may determine the second CTU according to the code resource included in the first CTU and the code resource included in the third CTU.
- the index Indx CTU of the second CTU is determined by:
- Indx CTU (Sig 1 + Sig 2 ) mod N CTU ; (4)
- Sig 1 is an index of a code resource included in the first transmission resource
- Sig 2 is an index of a code resource included in the third transmission resource
- an N CTU is a number of CTUs included in the current subframe.
- the current subframe may refer to a subframe that is used by the first terminal device to send the joint coded data, where the joint coded data and the first uplink data and the second uplink data may occupy the same subframe.
- the different subframes may be occupied separately, which is not limited in this embodiment of the present invention.
- the second CTU may also be determined according to other functional forms or other transmission resource information, and the embodiment of the present invention is not limited thereto.
- the S530 obtains the decoding result of the first uplink data and the second uplink data according to the obtained joint coded data and the first uplink data and the second uplink data, including:
- the first uplink data m particular, the network device may be received a demodulation processing to obtain a second uplink data m the initial log likelihood ratio of 1 m the LLR 1, 2 decompresses the received demodulation processing, to obtain an initial m 2 logarithm likelihood ratio the LLR 2, m and docking jointly encoded data received 3 performs demodulation processing, to obtain an initial logarithmic likelihood ratio of 3 m LLR 3. Since the m 3 by pairs m 1 and m encoding process 2 to, it is possible likelihood 3, the initial pair of numbers m 1 and likelihood adjusted ratio LLR 1 The initial log m 3 ratio of the LLR, to obtain m.
- the network device may separately decode the LLR ' 1 and the LLR' 2 to obtain the decoding result of the first uplink data and the second uplink data, but the embodiment of the present invention is not limited thereto.
- the log likelihood ratio corresponding to the joint encoded data, the initial log likelihood ratio corresponding to the first uplink data, and an initial log likelihood ratio corresponding to the second uplink data Determining a final log likelihood ratio corresponding to the first uplink data and a final log likelihood ratio corresponding to the second uplink data, including:
- the first network device may be based on the a priori probability information of uplink data m 1, m 1 is determined to adjust the log-likelihood ratio LLR 12, and the initial logarithmic likelihood ratio m is 1 and adjust the LLR 1
- the network device may determine prior probability information of the first uplink data and the second uplink data by using multiple calculation manners.
- the third data is obtained by performing network coding on the first uplink data and the second uplink data.
- the definition of the log likelihood ratio (5) indicates that the first uplink data is m. a prior probability of 1 being 0 And the prior probability of m 1 being 1. They are represented by equations (6) and (7), respectively.
- the network device receives the uplink data transmitted by the first terminal device and the second terminal device by using the transmit diversity transmission mechanism according to the method for transmitting the uplink data, where the network device receives the first terminal device and the The first uplink data and the second uplink data respectively sent by the second terminal device acquire joint coded data obtained by jointly coding the first uplink data and the second uplink data, and receive the received data according to the joint coded data.
- the first uplink data and the second uplink data are decoded, and the transmission delay can be reduced while obtaining the transmit diversity gain.
- FIG. 7 illustrates a method 600 of transmitting uplink data according to another embodiment of the present invention.
- the method 600 can be performed by a network device. As shown in FIG. 7, the method 600 includes:
- the first indication information is sent to the at least one of the first terminal device and the second terminal device, where the first indication information is used to indicate that the first terminal device and the second terminal device perform transmit diversity. transmission.
- determining that the first terminal device and the second terminal device perform transmit diversity transmission including:
- the transmission reliability information includes at least one of the following information: Diversity transmission capability information, current uplink channel quality information, and historical error rate information.
- the first terminal device and/or the second terminal device may report its own capability information (including whether it has the capability of transmitting diversity transmission), and further report whether it has transmitted.
- the willingness to transmit the diversity but the embodiment of the invention is not limited thereto.
- the network device determines that the first terminal device and the second terminal device transmit uplink data by using a transmit diversity transmission mechanism, and sends first indication information to indicate the first terminal device and the The second terminal device enables the first terminal device and the second terminal device to perform transmit diversity transmission according to the first indication information, and can reduce the transmission delay while obtaining the transmit diversity gain.
- FIG. 8 exemplarily shows an apparatus 700 for transmitting uplink data according to an embodiment of the present invention.
- the apparatus 700 includes:
- the obtaining unit 710 is configured to acquire second uplink data of the second terminal device.
- the encoding unit 720 is configured to perform joint coding processing on the first uplink data of the first terminal device and the second uplink data acquired by the acquiring unit 720 to obtain joint coded data.
- the sending unit 730 is configured to send the first uplink data to the network device by using the first transmission resource, and send the joint coded data obtained by the coding unit 730 to the network device by using a second transmission resource different from the first transmission resource. .
- the apparatus 700 further includes:
- a first receiving unit configured to receive, by the acquiring unit 710, the first indication information that is sent by the network device, where the first indication information is used to indicate the first terminal device
- the second terminal device performs transmit diversity transmission
- the first determining unit is configured to determine, according to the first indication information received by the first receiving unit, transmit diversity transmission with the second terminal device.
- the device may acquire the second uplink data of the second terminal device, or may also determine the transmit diversity transmission with the second terminal device.
- the second uplink data is obtained, and the embodiment of the present invention is not limited thereto.
- the first indication information may be further used to indicate that the first terminal device sends the joint encoded data, that is, the first terminal device assists in sending the second uplink data of the second terminal device, but the embodiment of the present invention Not limited to this.
- the first indication information includes group identification information of the terminal device group to which the second terminal device belongs and number information of the second terminal device in the terminal device group.
- the sending unit 730 is further configured to: before the acquiring unit 710 acquires the second uplink data of the second terminal device, send the transmit diversity to the at least one terminal device including the second terminal device. a transmission request, the request to transmit a diversity transmission with the first terminal device;
- the apparatus 700 further includes:
- a second receiving unit configured to receive a transmit diversity transmission response that is sent by the second terminal device according to the transmit diversity transmission request sent by the sending unit 730;
- a second determining unit configured to determine, according to the transmit diversity transmission response received by the second receiving unit, transmit diversity transmission with the second terminal device.
- the sending unit 730 is further configured to send the second indication information to the network device, where the second indication information is used to indicate that the first terminal device performs transmit diversity transmission with the second terminal device.
- the second indication information may indicate, explicitly or implicitly, that the first terminal device and the second terminal device perform transmit diversity transmission.
- the apparatus 700 further includes:
- a check code adding unit configured to add a CRC code to the first uplink data before the sending unit 730 sends the first uplink data to the network device by using the first transmission resource, where the CRC code uses the second terminal device
- the logo is scrambled
- the sending unit 730 is specifically configured to send, by using the first transmission resource, the first uplink data of the CRC code by the check code adding unit to the network device.
- the RRC code corresponding to the joint coded data may be scrambled by using the identifier of the second terminal device, which is not limited in this embodiment of the present invention.
- the acquiring unit 710 is specifically configured to receive the second uplink data sent by the second terminal device by using D2D transmission.
- the sending unit 730 is specifically configured to send the first uplink data and the joint encoded data to the network device by using an unlicensed transmission mode.
- the first transmission resource is specifically a first CTU
- the second transmission resource is specifically a second CTU
- the first CTU and the second CTU are located in different contention access areas.
- the acquiring unit 710 is further configured to acquire the second terminal device before the sending unit 730 sends the joint encoded data to the network device by using a second transmission resource different from the first transmission resource.
- the apparatus further includes: a third determining unit, configured to determine, according to the first transmission resource and the information about the third transmission resource acquired by the acquiring unit 710, the second transmission resource used for sending the joint encoded data ;
- the sending unit 730 is specifically configured to send the joint encoded data to the network device by using the second transmission resource determined by the third determining unit.
- the index number Indx CTU of the second CTU is determined by:
- Sig 1 is an index of a code resource included in the first transmission resource
- Sig 2 is an index of a code resource included in the third transmission resource
- an N CTU is a number of CTUs included in the current subframe.
- the code resource comprises one of the following: a sparse code multiple access codebook, a low density signature sequence, and a code division multiple access code.
- the apparatus 700 for transmitting uplink data according to an embodiment of the present invention may correspond to the first terminal apparatus in the method of transmitting uplink data according to an embodiment of the present invention, and the above and other operations of the respective modules in the apparatus 700 for transmitting uplink data and The functions of the respective methods in FIG. 3 are respectively implemented for the sake of brevity, and are not described herein again.
- the apparatus for transmitting uplink data transmits the uplink data by using the transmit diversity transmission mechanism by the first terminal device and the second terminal device, and the first terminal device acquires the second uplink data of the second terminal device, and treats The first uplink data and the second uplink data are jointly encoded to obtain joint coded data, and different transmission resources are used to separately send the first uplink data and the joint coded data to the network device, which can be obtained. Transmit diversity gain while reducing transmission delay.
- FIG. 9 shows another apparatus 800 for transmitting uplink data according to an embodiment of the present invention.
- the apparatus 800 includes:
- the determining unit 810 is configured to determine uplink data to be sent and a transmission resource of the uplink data.
- the sending unit 820 is configured to send the uplink data and the information about the transmission resource determined by the determining unit 810 to the first terminal device, and send the uplink data to the network device by using the transmission resource determined by the determining unit 810.
- the sending unit 820 can send the uplink data to the network device in an unlicensed transmission manner.
- the apparatus 800 further includes: a first receiving unit, configured to receive, after the sending unit 820 sends the uplink data and the information of the transmission resource to the first terminal device, An indication information, where the first indication information is used to indicate that the first terminal device performs a transmit diversity transmission with the second terminal device;
- the determining unit 810 is further configured to determine, according to the first indication information received by the first receiving unit, transmit diversity transmission with the first terminal device.
- the first indication information includes group identification information of the terminal device group to which the first terminal device belongs and number information of the first terminal device in the terminal device group.
- the apparatus 800 further includes: a second receiving unit, configured to Before sending the uplink data and the information of the transmission resource to the first terminal device, the sending unit 820 receives a transmit diversity transmission request sent by the first terminal device, where the transmit diversity transmission request is used to request to transmit with the first terminal device.
- Diversity transmission is used to request to transmit with the first terminal device.
- the determining unit 810 is further configured to determine, according to the transmit diversity transmission request received by the second receiving unit, to perform transmit diversity transmission with the first terminal device;
- the sending unit 820 is further configured to send a transmit diversity transmission response to the first terminal device.
- the diversity transmission transmission may also be initiated by the second terminal device, but the embodiment of the present invention is not limited thereto.
- the sending unit 820 is further configured to send the second indication information to the network device, where the second indication information is used to indicate that the first terminal device performs transmit diversity transmission with the second terminal device.
- the apparatus 800 further includes: a check code adding unit, configured to add a cyclic redundancy check CRC for the uplink data before the sending unit 820 sends the uplink data to the network device by using the transmission resource. a code, wherein the CRC code is scrambled by using an identifier of the first terminal device;
- the sending unit 820 is specifically configured to send, by using the transmission resource, the uplink data that the check code adding unit adds the CRC code to the network device.
- the uplink data may be implicitly indicated to be transmitted in the diversity transmission manner with the uplink data of the first terminal device, but the embodiment of the present invention is not limited thereto.
- the sending unit 820 is specifically configured to send the uplink data and the information of the transmission resource to the first terminal device by using D2D transmission.
- the information of the transmission resource may include at least one of the following information: an index of the CTU, a code resource index, an identifier of the second terminal device, and a pilot index.
- the information of the transmission resource may include information of a code resource, where the code resource includes one of the following: a sparse code multiple access codebook, a low density signature sequence, and a code division multiple access code.
- the apparatus 800 for transmitting uplink data according to an embodiment of the present invention may correspond to the second terminal apparatus in the method of transmitting uplink data according to an embodiment of the present invention, and the foregoing and other operations of the respective modules in the apparatus 800 for transmitting uplink data and
- the functions of the respective methods in FIG. 5 are respectively implemented for the sake of brevity, and are not described herein again.
- the apparatus for transmitting uplink data transmits uplink data by using the transmit diversity transmission mechanism by the first terminal device and the second terminal device, and the second terminal device sends the uplink data to the first terminal device
- the terminal device sends the uplink data to be transmitted and the information about the transmission resource of the uplink data, so that the first uplink data to be transmitted by the first terminal device and the received uplink data sent by the second terminal device are jointly encoded.
- the transmit diversity gain is obtained while reducing the transmission delay.
- FIG. 10 shows another apparatus 900 for transmitting uplink data according to an embodiment of the present invention.
- the apparatus 900 includes:
- the receiving unit 910 is configured to receive first uplink data that is sent by the first terminal device by using the first transmission resource, and second uplink data that is sent by the second terminal device by using the third transmission resource;
- the obtaining unit 920 is configured to acquire joint coded data that is sent by the first terminal device by using a second transmission resource different from the first transmission resource, where the joint coded data is received by the receiving unit 910.
- the second uplink data is obtained by joint coding processing
- the decoding unit 930 is configured to obtain the first uplink data and the second uplink data according to the joint encoded data acquired by the acquiring unit 920 and the first uplink data and the second uplink data received by the receiving unit 910. The decoding result.
- the apparatus 900 further includes:
- a first determining unit configured to determine, before the receiving unit 910 receives the first uplink data that is sent by the first terminal device by using the first transmission resource, and the second uplink data that is sent by the second terminal device by using the third transmission resource, The terminal device and the second terminal device perform transmit diversity transmission;
- a sending unit configured to send the first indication information to the at least one of the first terminal device and the second terminal device, where the first indication information is used to indicate the first terminal device determined by the first determining unit
- the second terminal device performs transmit diversity transmission.
- the first determining unit is configured to determine, according to the transmission reliability information of the first terminal device and the second terminal device, that the first terminal device and the second terminal device perform transmit diversity transmission, where the transmission is reliable.
- the sexual information includes at least one of the following information: transmit diversity transmission capability information, current uplink channel quality information, and historical error rate information.
- the receiving unit 910 is further configured to: before receiving, by the first terminal device, the first uplink data sent by using the first transmission resource, and before receiving the second uplink data sent by the second terminal device by using the third transmission resource. Receiving, by the at least one terminal device of the first terminal device and the second terminal device, second indication information, where the second indication information is used to indicate the first terminal setting The second terminal device performs transmission diversity transmission.
- the device may determine, according to the second indication information, that the first uplink data and the second uplink data are sent in a transmit diversity manner, and acquire joint coded data corresponding to the first uplink data and the second uplink data.
- the receiving unit 910 is specifically configured to receive the first uplink data and the second uplink data that are sent by the first terminal device and the second terminal device by using an unlicensed transmission manner.
- the first transmission resource is specifically a first CTU
- the second transmission resource is specifically a second CTU
- the third transmission resource is specifically different from the first CTU and the second CTU.
- the CTU, and the third CTU is located in a different contention access zone than the first CTU and the second CTU.
- the decoding unit 930 is specifically configured to:
- the decoding unit 930 is specifically configured to:
- the obtaining unit 920 is specifically configured to:
- the index Indx CTU of the second CTU is determined by:
- Sig 1 is an index of a code resource included in the first transmission resource
- Sig 2 is an index of a code resource included in the third transmission resource
- an N CTU is a number of CTUs included in the current subframe.
- the apparatus 900 for transmitting uplink data according to an embodiment of the present invention may correspond to the network device in the method of transmitting uplink data according to an embodiment of the present invention, and the foregoing and other operations of the respective modules in the apparatus 900 for transmitting uplink data and/or
- the functions are respectively implemented in order to implement the corresponding processes of the respective methods in FIG. 6. For brevity, details are not described herein again.
- the network device receives uplink data that is transmitted by the first terminal device and the second terminal device by using a transmit diversity transmission mechanism, and specifically, the network device receives the first terminal device and the The first uplink data and the second uplink data respectively sent by the second terminal device acquire joint coded data obtained by jointly coding the first uplink data and the second uplink data, and receive the received data according to the joint coded data.
- the first uplink data and the second uplink data are decoded, and the transmission delay can be reduced while obtaining the transmit diversity gain.
- FIG. 11 shows another apparatus 1000 for transmitting uplink data according to an embodiment of the present invention.
- the apparatus 1000 includes:
- a determining unit 1010 configured to determine that the first terminal device and the second terminal device perform transmit diversity transmission
- the sending unit 1020 is configured to send the first indication information to the at least one of the first terminal device and the second terminal device, where the first indication information is used to indicate the first terminal device determined by the determining unit 1010
- the second terminal device performs transmit diversity transmission.
- the determining unit 1010 is specifically configured to determine, according to the transmission reliability information of the first terminal device and the second terminal device, that the first terminal device and the second terminal device perform transmit diversity transmission, where the transmission reliability is
- the information includes at least one of the following information: transmit diversity transmission capability Information, current uplink channel quality information, and historical bit error rate information.
- the apparatus 1000 for transmitting uplink data according to an embodiment of the present invention may correspond to the network device in the method of transmitting uplink data according to an embodiment of the present invention, and the above and other operations of the respective modules in the apparatus 1000 for transmitting uplink data and/or The functions are respectively implemented in order to implement the corresponding processes of the respective methods in FIG. 7. For brevity, details are not described herein again.
- the network device determines that the first terminal device and the second terminal device transmit uplink data by using a transmit diversity transmission mechanism, and sends first indication information to indicate the first terminal device and the The second terminal device enables the first terminal device and the second terminal device to perform transmit diversity transmission according to the first indication information, and can reduce the transmission delay while obtaining the transmit diversity gain.
- FIG. 12 exemplarily shows an apparatus 1100 for transmitting uplink data according to an embodiment of the present invention.
- the apparatus 1100 includes:
- the processor 1110 is configured to acquire second uplink data of the second terminal device, and perform joint coding processing on the first uplink data of the first terminal device and the acquired second uplink data to obtain joint coded data.
- the transmitter 1120 is configured to send the first uplink data to the network device by using the first transmission resource, and send the joint coded data obtained by the processor 1110 to the network device by using a second transmission resource different from the first transmission resource. .
- the device 1100 further includes: a receiver, configured to receive first indication information sent by the network device, before the processor 1110 acquires the second uplink data of the second terminal device, where the first The indication information is used to indicate that the first terminal device performs transmission diversity transmission with the second terminal device;
- the processor 1110 is further configured to determine, according to the first indication information received by the receiver, transmit diversity transmission with the second terminal device.
- the device may acquire the second uplink data of the second terminal device, or may also determine the transmit diversity transmission with the second terminal device.
- the second uplink data is obtained, and the embodiment of the present invention is not limited thereto.
- the first indication information may be further used to indicate that the first terminal device sends the joint encoded data, that is, the first terminal device assists in sending the second uplink data of the second terminal device, but the embodiment of the present invention Not limited to this.
- the first indication information includes a group label of the terminal device group to which the second terminal device belongs The identification information and the number information of the second terminal device in the terminal device group.
- the transmitter 1120 is further configured to send the transmit diversity to the at least one terminal device, including the second terminal device, before the processor 1110 acquires the second uplink data of the second terminal device.
- a transmission request the request to transmit a diversity transmission with the first terminal device;
- the device 1100 further includes: a receiver, configured to receive a transmit diversity transmission response that is sent by the second terminal device according to the transmit diversity transmission request sent by the transmitter 1120;
- the processor 1110 is further configured to determine, according to the transmit diversity transmission response received by the receiver, transmit diversity transmission with the second terminal device.
- the transmitter 1120 is further configured to send the second indication information to the network device, where the second indication information is used to indicate that the first terminal device performs transmit diversity transmission with the second terminal device.
- the second indication information may indicate, explicitly or implicitly, that the first terminal device and the second terminal device perform transmit diversity transmission.
- the processor 1110 is further configured to add a CRC code to the first uplink data before the transmitter 1120 sends the first uplink data to the network device by using the first transmission resource, where the CRC code is used. Using the identifier of the second terminal device to perform scrambling;
- the transmitter 1120 is specifically configured to send, by using the first transmission resource, the first uplink data that the processor 1110 adds the CRC code to the network device.
- the RRC code corresponding to the joint coded data may be scrambled by using the identifier of the second terminal device, which is not limited in this embodiment of the present invention.
- the processor 1110 is specifically configured to receive the second uplink data sent by the second terminal device by using D2D transmission.
- the transmitter 1120 is specifically configured to send the first uplink data and the joint encoded data to the network device by using an unlicensed transmission mode.
- the first transmission resource is specifically a first CTU
- the second transmission resource is specifically a second CTU
- the first CTU and the second CTU are located in different contention access areas.
- the processor 1110 is further configured to acquire the second terminal device before the transmitter 1120 sends the joint encoded data to the network device by using a second transmission resource different from the first transmission resource.
- the index number Indx CTU of the second CTU is determined by:
- Sig 1 is an index of a code resource included in the first transmission resource
- Sig 2 is an index of a code resource included in the third transmission resource
- an N CTU is a number of CTUs included in the current subframe.
- the code resource comprises one of the following: a sparse code multiple access codebook, a low density signature sequence, and a code division multiple access code.
- the apparatus 1100 for transmitting uplink data according to an embodiment of the present invention may correspond to the first terminal device in the method of transmitting uplink data according to an embodiment of the present invention, and the above and other operations of the respective modules in the apparatus 1100 for transmitting uplink data and
- the functions of the respective methods in FIG. 3 are respectively implemented for the sake of brevity, and are not described herein again.
- the apparatus for transmitting uplink data transmits the uplink data by using the transmit diversity transmission mechanism by the first terminal device and the second terminal device, and the first terminal device acquires the second uplink data of the second terminal device, and treats The first uplink data and the second uplink data are jointly encoded to obtain joint coded data, and different transmission resources are used to separately send the first uplink data and the joint coded data to the network device, which can be obtained. Transmit diversity gain while reducing transmission delay.
- FIG. 13 shows another apparatus 1200 for transmitting uplink data according to an embodiment of the present invention.
- the apparatus 1200 includes:
- the processor 1210 is configured to determine to perform transmit diversity transmission with the first terminal device.
- the transmitter 1220 is configured to send, to the first terminal device, the uplink data and the information about the transmission resource determined by the processor 1210, and send the uplink data to the network device by using the transmission resource determined by the processor 1210.
- the transmitter 1220 can send the uplink data to the network device in an unlicensed transmission manner.
- the apparatus 1200 further includes: a receiver, configured to receive the first indication sent by the network device before the transmitter 1220 sends the uplink data and the information of the transmission resource to the first terminal device Information, the first indication information is used to indicate that the first terminal device and the second terminal device perform transmit diversity transmission;
- the processor 1210 is further configured to determine, according to the first indication information received by the receiver, transmit diversity transmission with the first terminal device.
- the first indication information includes group identification information of the terminal device group to which the first terminal device belongs and number information of the first terminal device in the terminal device group.
- the apparatus 1200 further includes: a receiver, configured to receive, before the transmitter 1220 sends the uplink data and the information of the transmission resource to the first terminal device, the first terminal device sends the Transmitting a diversity transmission request, the request to transmit a diversity transmission with the first terminal device;
- the processor 1210 is further configured to determine, according to the transmit diversity transmission request received by the receiver, to perform transmit diversity transmission with the first terminal device;
- the transmitter 1220 is further configured to send a transmit diversity transmission response to the first terminal device.
- the diversity transmission transmission may also be initiated by the second terminal device, but the embodiment of the present invention is not limited thereto.
- the transmitter 1220 is further configured to send the second indication information to the network device, where the second indication information is used to indicate that the first terminal device performs transmit diversity transmission with the second terminal device.
- the processor 1210 is further configured to add a CRC code to the uplink data before the transmitter 1220 sends the uplink data to the network device by using the transmission resource, where the CRC code uses the first terminal.
- the identification of the device is scrambled;
- the transmitter 1220 is specifically configured to send, by using the transmission resource, the uplink data that the processor 1210 adds the CRC code to the network device.
- the uplink data may be implicitly indicated to be transmitted in the diversity transmission manner with the uplink data of the first terminal device, but the embodiment of the present invention is not limited thereto.
- the transmitter 1220 is specifically configured to send the uplink data and the information of the transmission resource to the first terminal device by using D2D transmission.
- the information of the transmission resource may include at least one of the following information: an index of the CTU, a code resource index, an identifier of the second terminal device, and a pilot index.
- the information of the transmission resource may include information of a code resource, where the code resource includes one of the following: a sparse code multiple access codebook, a low density signature sequence, and a code division multiple access code.
- the apparatus 1200 for transmitting uplink data according to an embodiment of the present invention may correspond to the second terminal apparatus in the method of transmitting uplink data according to an embodiment of the present invention, and the foregoing and other operations of the respective modules in the apparatus 1200 for transmitting uplink data
- the functions of the respective methods in FIG. 5 are respectively implemented for the sake of brevity, and are not described herein again.
- the apparatus for transmitting uplink data transmits uplink data by using the transmit diversity transmission mechanism by the first terminal device and the second terminal device, and the second terminal device sends the second uplink data to the first terminal device and Transmitting information of the resource, so that the first uplink data to be transmitted by the first terminal device and the received second uplink data sent by the second terminal device are jointly encoded to obtain joint coded data, and the difference is adopted.
- the transmission resource separately sends the first uplink data and the joint coded data to the network device, and the second terminal device sends the second uplink data to the network device, which can reduce the transmission delay while obtaining the transmit diversity gain. .
- FIG. 14 shows another apparatus 1300 for transmitting uplink data according to an embodiment of the present invention.
- the apparatus 1300 includes:
- the receiver 1310 is configured to receive first uplink data that is sent by the first terminal device by using the first transmission resource, and second uplink data that is sent by the second terminal device by using the third transmission resource.
- the processor 1320 is configured to acquire joint coded data that is sent by the first terminal device by using a second transmission resource different from the first transmission resource, where the joint coded data is received by the receiver 1310. Obtaining the data from the second uplink data, and obtaining the translation of the first uplink data and the second uplink data according to the acquired joint encoded data and the first uplink data and the second uplink data. Code result.
- the processor 1320 is further configured to receive, by the receiver 1310, first uplink data that is sent by the first terminal device by using the first transmission resource, and second uplink that is sent by the second terminal device by using the third transmission resource. Before the data, determining that the first terminal device and the second terminal device perform transmit diversity transmission;
- the device 1300 further includes: a transmitter, configured to send, to the at least one terminal device of the first terminal device and the second terminal device, the first indication information, where the first indication information is used to indicate the processor 1320
- the determined first terminal device and the second terminal device perform transmit diversity transmission.
- the processor 1320 is specifically configured to determine, according to the transmission reliability information of the first terminal device and the second terminal device, that the first terminal device and the second terminal device perform transmit diversity transmission, where the transmission reliability is
- the information includes at least one of the following information: transmit diversity transmission capability information, current uplink channel quality information, and historical error rate information.
- the receiver 1310 is further configured to: use the first uplink data sent by the first terminal device by using the first transmission resource, and the third transmission resource by the second terminal device. Before receiving the second uplink data, receiving second indication information sent by the at least one terminal device of the first terminal device and the second terminal device, where the second indication information is used to indicate the first terminal device and the second The terminal device performs transmit diversity transmission.
- the device may determine, according to the second indication information, that the first uplink data and the second uplink data are sent in a transmit diversity manner, and acquire joint coded data corresponding to the first uplink data and the second uplink data.
- the receiver 1310 is specifically configured to receive the first uplink data and the second uplink data that are sent by the first terminal device and the second terminal device by using an unlicensed transmission manner.
- the first transmission resource is specifically a first CTU
- the second transmission resource is specifically a second CTU
- the third transmission resource is specifically a third CTU different from the first CTU and the second CTU
- the third CTU is located in a different contention access zone than the first CTU and the second CTU.
- the processor 1320 is specifically configured to:
- processor 1320 is specifically configured to:
- processor 1320 is specifically configured to:
- the index Indx CTU of the second CTU is determined by:
- Sig 1 is an index of a code resource included in the first transmission resource
- Sig 2 is an index of a code resource included in the third transmission resource
- an N CTU is a number of CTUs included in the current subframe.
- the apparatus 1300 for transmitting uplink data according to an embodiment of the present invention may correspond to the network device in the method of transmitting uplink data according to an embodiment of the present invention, and the foregoing and other operations of the respective modules in the apparatus 1300 for transmitting uplink data and/or
- the functions are respectively implemented in order to implement the corresponding processes of the respective methods in FIG. 6. For brevity, details are not described herein again.
- the network device receives uplink data that is transmitted by the first terminal device and the second terminal device by using a transmit diversity transmission mechanism, and specifically, the network device receives the first terminal device and the The first uplink data and the second uplink data respectively sent by the second terminal device acquire joint coded data obtained by jointly coding the first uplink data and the second uplink data, and receive the received data according to the joint coded data.
- the first uplink data and the second uplink data are decoded, and the transmission delay can be reduced while obtaining the transmit diversity gain.
- FIG. 15 shows another apparatus 1400 for transmitting uplink data according to an embodiment of the present invention.
- the apparatus 1400 includes:
- the processor 1410 is configured to determine that the first terminal device and the second terminal device perform transmit diversity transmission
- the transmitter 1420 is configured to send first indication information to the at least one of the first terminal device and the second terminal device, where the first indication information is used to indicate the first terminal device determined by the processor 1410
- the second terminal device performs transmit diversity transmission.
- the processor 1410 is specifically configured to set according to the first terminal device and the second terminal Determining the transmission reliability information, determining that the first terminal device and the second terminal device perform transmit diversity transmission, where the transmission reliability information includes at least one of the following information: transmit diversity transmission capability information, current uplink channel quality information, and Historical bit error rate information.
- the apparatus 1400 for transmitting uplink data according to an embodiment of the present invention may correspond to the network device in the method of transmitting uplink data according to an embodiment of the present invention, and the foregoing and other operations of the respective modules in the apparatus 1400 for transmitting uplink data and/or
- the functions are respectively implemented in order to implement the corresponding processes of the respective methods in FIG. 7. For brevity, details are not described herein again.
- the network device determines that the first terminal device and the second terminal device transmit uplink data by using a transmit diversity transmission mechanism, and sends first indication information to indicate the first terminal device and the The second terminal device enables the first terminal device and the second terminal device to perform transmit diversity transmission according to the first indication information, and can reduce the transmission delay while obtaining the transmit diversity gain.
- the processor in the foregoing apparatus may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSPs), and dedicated integration. Circuit (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc.
- the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
- the above apparatus may further include a memory, which may include a read only memory and a random access memory, and provides instructions and data to the processor.
- a portion of the memory may also include a non-volatile random access memory.
- the memory can also store information of the device type.
- each step of the above method may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
- the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
- the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
- the storage medium is located in the memory, and the processor reads the instructions in the memory and combines the hardware to complete the steps of the above method. To avoid repetition, it will not be described in detail here.
- the sending unit or the transmitter in the above embodiment may refer to transmitting on the air interface, may not be sent on the air interface, but may be sent to other devices to facilitate other devices to send on the air interface.
- the receiving unit or the receiver in the above embodiment may refer to receiving on the air interface, and may not receive on the air interface, but receive from other devices received on the air interface.
- association relationship describing the associated object indicates that there may be three relationships.
- a and/or B may indicate that A exists separately, and A and B exist simultaneously, and B cases exist alone.
- the character / in this paper generally indicates that the contextual object is an OR relationship.
- the disclosed systems, devices, and methods may be implemented in other manners.
- the device embodiments described above are merely illustrative.
- the division of the unit is only a logical function division.
- there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
- the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.
- each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated in In a unit.
- the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
- the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
- the technical solution of the present invention contributes in essence or to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium.
- a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
- the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .
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Abstract
本发明公开了一种传输上行数据的方法和装置,该方法包括:第一终端设备获取第二终端设备的第二上行数据;该第一终端设备对该第一终端设备的第一上行数据和该第二上行数据进行联合编码处理,得到联合编码数据;该第一终端设备采用第一传输资源向网络设备发送该第一上行数据,并且采用不同于该第一传输资源的第二传输资源向该网络设备发送该联合编码数据。本发明公开的传输上行数据的方法和装置,能够在获得发射分集增益的同时降低传输时延。
Description
本发明涉及通信领域,并且更具体地,涉及传输上行数据的方法和装置。
现有技术中,为了提高传输的可靠性,采用混合自动重传请求(Hybrid Automatic Repeat request,HARQ)技术进行数据传输,即接收端需要向发送端反馈用于指示是否成功接收该发送端发送的数据的指示信息,具体地,如果接收失败,则接收端向发射端反馈否认(Negative Acknowledgment,NACK)消息,相应地,发送端在接收到NACK消息之后,可以按照特定HARQ时序关系进行数据重传。这样,由于接收端的反馈以及发射端的重传都会造成一定的传输时延,所以采用HARQ技术的数据传输会具有较大的传输时延。在未来的通信系统中,例如采用上行非授权(Grant Free)传输的系统,往往要求较低的信令开销和传输时延,而采用HARQ技术会不满足未来通信系统对传输时延的要求。
发明内容
本发明实施例提供一种传输上行数据的方法和装置,能够在获得发射分集增益的同时降低传输时延。
第一方面,本发明实施例提供了一种传输上行数据的方法,包括:第一终端设备获取第二终端设备的第二上行数据;该第一终端设备对该第一终端设备的第一上行数据和该第二上行数据进行联合编码处理,得到联合编码数据;该第一终端设备采用第一传输资源向网络设备发送该第一上行数据,并且采用不同于该第一传输资源的第二传输资源向该网络设备发送该联合编码数据。
在第一方面的第一种可能的实现方式中,在该获取该第二终端设备的第二上行数据之前,该方法还包括:接收该网络设备发送的第一指示信息,该第一指示信息用于指示该第一终端设备与该第二终端设备进行发射分集传输;根据该第一指示信息,确定与该第二终端设备进行发射分集传输。
结合上述可能的实现方式,在第一方面的第二种可能的实现方式中,该
第一指示信息包括该第二终端设备所属终端设备分组的组标识信息以及该第二终端设备在该终端设备分组内的编号信息。
结合上述可能的实现方式,在第一方面的第三种可能的实现方式中,在该获取该第二终端设备的第二上行数据之前,该方法还包括:向包括该第二终端设备在内的至少一个终端设备发送发射分集传输请求,该发射分集传输请求用于请求与该第一终端设备进行发射分集传输;接收该第二终端设备根据该发射分集传输请求发送的发射分集传输响应;根据接收到的该发射分集传输响应,确定与该第二终端设备进行发射分集传输。
结合上述可能的实现方式,在第一方面的第四种可能的实现方式中,该方法还包括:向该网络设备发送第二指示信息,该第二指示信息用于指示该第一终端设备与该第二终端设备进行发射分集传输。
结合上述可能的实现方式,在第一方面的第五种可能的实现方式中,在该采用第一传输资源向网络设备发送该第一上行数据之前,该方法还包括:为该第一上行数据添加CRC码,其中,该CRC码采用该第二终端设备的标识进行加扰;该采用第一传输资源向网络设备发送该第一上行数据,包括:采用该第一传输资源向该网络设备发送添加了该CRC码的该第一上行数据。
结合上述可能的实现方式,在第一方面的第六种可能的实现方式中,该获取第二终端设备的第二上行数据,包括:通过D2D传输接收该第二终端设备发送的该第二上行数据。
结合上述可能的实现方式,在第一方面的第七种可能的实现方式中,该第一传输资源具体为第一CTU,该第二传输资源具体为第二CTU,并且该第一CTU和该第二CTU位于不同的竞争接入区域。
结合上述可能的实现方式,在第一方面的第八种可能的实现方式中,在该采用不同于该第一传输资源的第二传输资源向该网络设备发送该联合编码数据之前,该方法还包括:获取该第二终端设备发送该第二上行数据时采用的第三传输资源的信息;根据该第三传输资源的信息和该第一传输资源,确定发送该联合编码数据所采用的该第二传输资源。
结合上述可能的实现方式,在第一方面的第九种可能的实现方式中,若该第二传输资源具体为第二CTU,该第二CTU的索引号IndxCTU由下式确定:
IndxCTU=(Sig1+Sig2)mod NCTU;
其中,Sig1为该第一传输资源包括的码资源的索引,Sig2为该第三传输
资源包括的码资源的索引,NCTU为当前子帧中包括的CTU的数目。
结合上述可能的实现方式,在第一方面的第十种可能的实现方式中,该码资源包括下列中的一种:稀疏码多址接入码本、低密度签名序列和码分多址码。
结合上述可能的实现方式,在第一方面的第十一种可能的实现方式中,该第一上行数据和该联合编码数据是该第一终端设备采用免授权传输方式向该网络设备发送的。
第二方面,提供了另一种传输上行数据的方法,包括:第二终端设备确定待发送的上行数据以及该上行数据的传输资源;该第二终端设备向该第一终端设备发送该上行数据和该传输资源的信息;该第二终端设备采用该传输资源向网络设备发送该上行数据。
在第二方面的第一种可能的实现方式中,在该向该第一终端设备发送该上行数据和该传输资源的信息之前,该方法还包括:接收该网络设备发送的第一指示信息,该第一指示信息用于指示该第一终端设备与该第二终端设备进行发射分集传输;根据该第一指示信息,确定与该第一终端设备进行发射分集传输。
结合上述可能的实现方式,在第二方面的第二种可能的实现方式中,该第一指示信息包括该第一终端设备所属终端设备分组的组标识信息以及该第一终端设备在该终端设备分组内的编号信息。
结合上述可能的实现方式,在第二方面的第三种可能的实现方式中,在该向该第一终端设备发送该上行数据和该传输资源的信息之前,该方法还包括:接收该第一终端设备发送的发射分集传输请求,该发射分集传输请求用于请求与该第一终端设备进行发射分集传输;根据该发射分集传输请求,确定与该第一终端设备进行发射分集传输;该方法还包括:向该第一终端设备发送发射分集传输响应。
结合上述可能的实现方式,在第二方面的第四种可能的实现方式中,在该采用该传输资源向网络设备发送该上行数据之前,该方法还包括:为该上行数据添加CRC码,其中,该CRC码采用该第一终端设备的标识进行加扰;该采用该传输资源信息对应的传输资源向网络设备发送该上行数据,包括:采用该传输资源信息对应的传输资源向网络设备发送添加了该CRC码的该上行数据。
结合上述可能的实现方式,在第二方面的第五种可能的实现方式中,该向该第一终端设备发送上行数据和该传输资源的信息,包括:通过D2D传输向该第一终端设备发送该上行数据和该传输资源的信息。
结合上述可能的实现方式,在第二方面的第六种可能的实现方式中,该传输资源的信息包括码资源的信息,该码资源包括下列中的一种:稀疏码多址接入码本、低密度签名序列和码分多址码。
结合上述可能的实现方式,在第二方面的第七种可能的实现方式中,该上行数据是该第二终端设备采用免授权传输方式向该网络设备发送的。
第三方面,提供了另一种传输上行数据的方法,包括:网络设备接收第一终端设备采用第一传输资源发送的第一上行数据和第二终端设备采用第三传输资源发送的第二上行数据;获取该第一终端设备采用不同于该第一传输资源的第二传输资源发送的联合编码数据,该联合编码数据是通过对该第一上行数据与该第二上行数据进行联合编码处理得到的;根据获取到的该联合编码数据以及该第一上行数据和该第二上行数据,得到该第一上行数据和该第二上行数据的译码结果。
在第三方面的第一种可能的实现方式中,在该接收第一终端设备采用第一传输资源发送的第一上行数据和第二终端设备采用第三传输资源发送的第二上行数据之前,该方法还包括:确定该第一终端设备和该第二终端设备进行发射分集传输;向该第一终端设备和该第二终端设备中的至少一个终端设备发送第一指示信息,该第一指示信息用于指示该第一终端设备和该第二终端设备进行发射分集传输。
结合上述可能的实现方式,在第三方面的第二种可能的实现方式中,该确定该第一终端设备和第二终端设备进行发射分集传输,包括:根据该第一终端设备和该第二终端设备的传输可靠性信息,确定该第一终端设备和该第二终端设备进行发射分集传输,该传输可靠性信息包括下列信息中的至少一项:发射分集传输能力信息、当前上行信道质量信息和历史误码率信息。
结合上述可能的实现方式,在第三方面的第三种可能的实现方式中,在该接收第一终端设备采用第一传输资源发送的第一上行数据和第二终端设备采用第三传输资源发送的第二上行数据之前,该方法还包括:接收该第一终端设备和该第二终端设备中的至少一个终端设备发送的第二指示信息,该第二指示信息用于指示该第一终端设备和该第二终端设备进行发射分集传
输。
结合上述可能的实现方式,在第三方面的第四种可能的实现方式中,在该获取该第一终端设备采用不同于该第一传输资源的第二传输资源发送的联合编码数据之前,该方法还包括:确定分集发射传输的判断条件得到满足,该分集发射传输的判断条件包括下列中的至少一种:该第一上行数据对应的CRC码是采用该第二终端设备的标识进行加扰的,以及该第二上行数据对应的CRC码是采用该第一终端设备的标识进行加扰的;根据该分集发射传输的判断条件得到满足,确定该第一上行数据和该第二上行数据是以分集发射传输方式发送的。
结合上述可能的实现方式,在第三方面的第五种可能的实现方式中,该第一传输资源具体为第一CTU,该第二传输资源具体为第二CTU,该第三传输资源具体为不同于该第一CTU和该第二CTU的第三CTU,并且该第三CTU位于与第一CTU和该第二CTU不同的竞争接入区域。
结合上述可能的实现方式,在第三方面的第六种可能的实现方式中,该根据获取到的该联合编码数据以及该第一上行数据和该第二上行数据,得到该第一上行数据和该第二上行数据的译码结果,包括:对接收到的该第一上行数据进行解调处理,获得该第一上行数据对应的初始对数似然比;对接收到的该第二上行数据进行解调处理,获得该第二上行数据对应的初始对数似然比;对获取到的该联合编码数据进行解调处理,获得该联合编码数据对应的对数似然比;根据该联合编码数据对应的对数似然比、该第一上行数据对应的初始对数似然比和该第二上行数据对应的初始对数似然比,确定该第一上行数据对应的最终对数似然比和该第二上行数据对应的最终对数似然比;对该第一上行数据对应的最终对数似然比进行译码处理,以获得该第一上行数据对应的译码结果,并且对该第二上行数据对应的最终对数似然比进行译码处理,以获得该第二上行数据对应的译码结果。
结合上述可能的实现方式,在第三方面的第七种可能的实现方式中,该根据该联合编码数据对应的对数似然比、该第一上行数据对应的初始对数似然比和该第二上行数据对应的初始对数似然比,确定该第一上行数据对应的最终对数似然比和该第二上行数据对应的最终对数似然比,包括:根据该联合编码数据对应的对数似然比、该第一上行数据对应的初始对数似然比和该第二上行数据对应的初始对数似然比,确定该第一上行数据的先验概率信息
和该第二上行数据的先验概率信息;根据该第一上行数据的先验概率信息和该第一上行数据对应的初始对数似然比,确定该第一上行数据对应的最终对数似然比;根据该第二上行数据的先验概率信息和该第二上行数据对应的初始对数似然比,确定该第二上行数据对应的最终对数似然比。
结合上述可能的实现方式,在第三方面的第八种可能的实现方式中,该获取该第一终端设备采用不同于该第一传输资源的第二传输资源发送的联合编码数据,包括:获取该第一传输资源的信息和该第三传输资源的信息;根据该第一传输资源的信息和该第三传输资源的信息,确定该第二传输资源;获取该第二传输资源上传输的该联合编码数据。
结合上述可能的实现方式,在第三方面的第九种可能的实现方式中,若该第二传输资源具体为第二CTU,该第二CTU的索引IndxCTU由下式确定:
IndxCTU=(Sig1+Sig2)mod NCTU;
其中,Sig1为该第一传输资源包括的码资源的索引,Sig2为该第三传输资源包括的码资源的索引,NCTU为当前子帧中包括的CTU的数目。
结合上述可能的实现方式,在第三方面的第十种可能的实现方式中,该码资源包括下列中的一种:稀疏码多址接入码本、低密度签名组和码分多址码组。
结合上述可能的实现方式,在第三方面的第十一种可能的实现方式中,该接收第一终端设备采用第一传输资源发送的第一上行数据和第二终端设备采用第三传输资源发送的第二上行数据,包括:接收该第一终端设备和该第二终端设备采用免授权传输方式分别发送的该第一上行数据和该第二上行数据。
第四方面,提供另一种传输上行数据的方法,包括:网络设备确定第一终端设备和第二终端设备进行发射分集传输;向该第一终端设备和该第二终端设备中的至少一个终端设备发送第一指示信息,该第一指示信息用于指示该第一终端设备和该第二终端设备进行发射分集传输。
在第四方面的第一种可能的实现方式中,该确定第一终端设备和第二终端设备进行发射分集传输,包括:根据该第一终端设备和该第二终端设备的传输可靠性信息,确定该第一终端设备和该第二终端设备进行发射分集传输,该传输可靠性信息包括下列信息中的至少一项:发射分集传输能力信息、当前上行信道质量信息和历史误码率信息。
第五方面,提供了一种传输上行数据的装置,包括:获取单元,用于获取第二终端设备的第二上行数据;编码单元,用于对第一终端设备的第一上行数据和该获取单元获取的该第二上行数据进行联合编码处理,得到联合编码数据;发送单元,用于采用第一传输资源向网络设备发送该第一上行数据,并且采用不同于该第一传输资源的第二传输资源向该网络设备发送该编码单元得到的该联合编码数据。
在第五方面的第一种可能的实现方式中,该装置还包括:第一接收单元,用于在该获取单元获取该第二终端设备的第二上行数据之前,接收该网络设备发送的第一指示信息,该第一指示信息用于指示该第一终端设备与该第二终端设备进行发射分集传输;第一确定单元,用于根据该第一接收单元接收到的该第一指示信息,确定与该第二终端设备进行发射分集传输。
结合上述可能的实现方式,在第五方面的第二种可能的实现方式中,该第一指示信息包括该第二终端设备所属终端设备分组的组标识信息以及该第二终端设备在该终端设备分组内的编号信息。
结合上述可能的实现方式,在第五方面的第三种可能的实现方式中,该发送单元还用于在该获取单元获取该第二终端设备的第二上行数据之前,向包括该第二终端设备在内的至少一个终端设备发送发射分集传输请求,该发射分集传输请求用于请求与该第一终端设备进行发射分集传输;该装置还包括:第二接收单元,用于接收该第二终端设备根据该发送单元发送的该发射分集传输请求发送的发射分集传输响应;第二确定单元,用于根据该第二接收单元接收到的该发射分集传输响应,确定与该第二终端设备进行发射分集传输。
结合上述可能的实现方式,在第五方面的第四种可能的实现方式中,该发送单元还用于向该网络设备发送第二指示信息,该第二指示信息用于指示该第一终端设备与该第二终端设备进行发射分集传输。
结合上述可能的实现方式,在第五方面的第五种可能的实现方式中,该装置还包括:校验码添加单元,用于在该发送单元采用第一传输资源向网络设备发送该第一上行数据之前,为该第一上行数据添加CRC码,其中,该CRC码采用该第二终端设备的标识进行加扰;该发送单元具体用于采用该第一传输资源向该网络设备发送该校验码添加单元添加了该CRC码的该第一上行数据。
结合上述可能的实现方式,在第五方面的第六种可能的实现方式中,该获取单元具体用于:通过D2D传输接收该第二终端设备发送的该第二上行数据。
结合上述可能的实现方式,在第五方面的第七种可能的实现方式中,该第一传输资源具体为第一CTU,该第二传输资源具体为第二CTU,并且该第一CTU和该第二CTU位于不同的竞争接入区域。
结合上述可能的实现方式,在第五方面的第八种可能的实现方式中,该获取单元还用于在该发送单元采用不同于该第一传输资源的第二传输资源向该网络设备发送该联合编码数据之前,获取该第二终端设备发送该第二上行数据时采用的第三传输资源的信息;该装置还包括:第三确定单元,用于根据该第一传输资源和该获取单元获取的该第三传输资源的信息,确定发送该联合编码数据所采用的该第二传输资源;该发送单元具体用于采用该第三确定单元确定的该第二传输单元,发送该联合编码数据。
结合上述可能的实现方式,在第五方面的第九种可能的实现方式中,若该第二传输资源具体为第二CTU,该第二CTU的索引号IndxCTU由下式确定:
IndxCTU=(Sig1+Sig2)mod NCTU;
其中,Sig1为该第一传输资源包括的码资源的索引,Sig2为该第三传输资源包括的码资源的索引,NCTU为当前子帧中包括的CTU的数目。
结合上述可能的实现方式,在第五方面的第十种可能的实现方式中,该码资源包括下列中的一种:稀疏码多址接入码本、低密度签名序列和码分多址码。
结合上述可能的实现方式,在第五方面的第十一种可能的实现方式中,该发送单元具体用于采用免授权传输方式向该网络设备发送该第一上行数据和该联合编码数据。
结合上述可能的实现方式,在第五方面的第十二种可能的实现方式中,该装置为该第一终端设备。
第六方面,提供了另一种传输上行数据的装置,包括:确定单元,用于确定待发送的上行数据以及该上行数据的传输资源;发送单元,用于向第一终端设备发送该确定单元确定的该上行数据和该传输资源的信息,以及采用该确定单元确定的该传输资源向网络设备发送该上行数据。
在第六方面的第一种可能的实现方式中,该装置还包括:第一接收单元,
用于在该发送单元向该第一终端设备发送该上行数据和该传输资源的信息之前,接收该网络设备发送的第一指示信息,该第一指示信息用于指示该第一终端设备与第二终端设备进行发射分集传输;该确定单元还用于根据该第一接收单元接收的该第一指示信息,确定与该第一终端设备进行发射分集传输。
结合上述可能的实现方式,在第六方面的第二种可能的实现方式中,该第一指示信息包括该第一终端设备所属终端设备分组的组标识信息以及该第一终端设备在该终端设备分组内的编号信息。
结合上述可能的实现方式,在第六方面的第三种可能的实现方式中,该装置还包括:第二接收单元,用于在该发送单元向该第一终端设备发送该上行数据和该传输资源的信息之前,接收该第一终端设备发送的发射分集传输请求,该发射分集传输请求用于请求与该第一终端设备进行发射分集传输;该确定单元还用于根据该第二接收单元接收的该发射分集传输请求,确定与该第一终端设备进行发射分集传输;该发送单元还用于向该第一终端设备发送发射分集传输响应。
结合上述可能的实现方式,在第六方面的第四种可能的实现方式中,该装置还包括:校验码添加单元,用于在该发送单元采用该传输资源向网络设备发送该上行数据之前,为该上行数据添加CRC码,其中,该CRC码采用该第一终端设备的标识进行加扰;该发送单元具体用于采用该传输资源向网络设备发送该校验码添加单元添加了该CRC码的该上行数据。
结合上述可能的实现方式,在第六方面的第五种可能的实现方式中,该发送单元具体用于通过D2D传输向该第一终端设备发送该上行数据和该传输资源的信息。
结合上述可能的实现方式,在第六方面的第六种可能的实现方式中该传输资源的信息包括码资源的信息,该码资源包括下列中的一种:稀疏码多址接入码本、低密度签名序列和码分多址码。
结合上述可能的实现方式,在第六方面的第七种可能的实现方式中,该上行数据是该第二终端设备采用免授权传输方式向该网络设备发送的。
结合上述可能的实现方式,在第六方面的第八种可能的实现方式中,该装置为该第二终端设备。
第七方面,提供了另一种传输上行数据的装置,包括:接收单元,用于
接收第一终端设备采用第一传输资源发送的第一上行数据和第二终端设备采用第三传输资源发送的第二上行数据;获取单元,用于获取该第一终端设备采用不同于该第一传输资源的第二传输资源发送的联合编码数据,该联合编码数据是通过对该接收单元接收的该第一上行数据与该第二上行数据进行联合编码处理得到的;译码单元,用于根据该获取单元获取到的该联合编码数据以及该接收单元接收到的该第一上行数据和该第二上行数据,得到该第一上行数据的译码结果和该第二上行数据的译码结果。
在第七方面的第一种可能的实现方式中,该装置还包括:第一确定单元,用于在该接收单元接收第一终端设备采用第一传输资源发送的第一上行数据和第二终端设备采用第三传输资源发送的第二上行数据之前,确定该第一终端设备和第二终端设备进行发射分集传输;发送单元,用于向该第一终端设备和该第二终端设备中的至少一个终端设备发送第一指示信息,该第一指示信息用于指示该第一确定单元确定的该第一终端设备和该第二终端设备进行发射分集传输。
结合上述可能的实现方式,在第七方面的第二种可能的实现方式中,该第一确定单元具体用于根据该第一终端设备和该第二终端设备的传输可靠性信息,确定该第一终端设备和该第二终端设备进行发射分集传输,该传输可靠性信息包括下列信息中的至少一项:发射分集传输能力信息、当前上行信道质量信息和历史误码率信息。
结合上述可能的实现方式,在第七方面的第三种可能的实现方式中,该接收单元还用于在该接收第一终端设备采用第一传输资源发送的第一上行数据和第二终端设备采用第三传输资源发送的第二上行数据之前,接收该第一终端设备和该第二终端设备中的至少一个终端设备发送的第二指示信息,该第二指示信息用于指示该第一终端设备和该第二终端设备进行发射分集传输。
结合上述可能的实现方式,在第七方面的第四种可能的实现方式中,该装置还包括:第二确定单元,用于在该获取单元获取该第一终端设备采用不同于该第一传输资源的第二传输资源发送的联合编码数据之前,确定分集发射传输的判断条件得到满足,该分集发射传输的判断条件包括下列中的至少一种:该第一上行数据对应的CRC码是采用该第二终端设备的标识进行加扰的,以及该第二上行数据对应的CRC码是采用该第一终端设备的标识进
行加扰的;以及根据该分集发射传输的判断条件得到满足,确定该第一上行数据和该第二上行数据是以分集发射传输方式发送的。
结合上述可能的实现方式,在第七方面的第五种可能的实现方式中,该第一传输资源具体为第一CTU,该第二传输资源具体为第二CTU,该第三传输资源具体为不同于该第一CTU和该第二CTU的第三CTU,并且该第三CTU位于与第一CTU和该第二CTU不同的竞争接入区域。
结合上述可能的实现方式,在第七方面的第六种可能的实现方式中,该译码单元具体用于:对接收到的该第一上行数据进行解调处理,获得该第一上行数据对应的初始对数似然比;对接收到的该第二上行数据进行解调处理,获得该第二上行数据对应的初始对数似然比;对获取到的该联合编码数据进行解调处理,获得该联合编码数据对应的对数似然比;根据该联合编码数据对应的对数似然比、该第一上行数据对应的初始对数似然比和该第二上行数据对应的初始对数似然比,确定该第一上行数据对应的最终对数似然比和该第二上行数据对应的最终对数似然比;对该第一上行数据对应的最终对数似然比进行译码处理,以获得该第一上行数据对应的译码结果,并且对该第二上行数据对应的最终对数似然比进行译码处理,以获得该第二上行数据对应的译码结果。
结合上述可能的实现方式,在第七方面的第七种可能的实现方式中,该译码单元具体用于:根据该联合编码数据对应的对数似然比、该第一上行数据对应的初始对数似然比和该第二上行数据对应的初始对数似然比,确定该第一上行数据的先验概率信息和该第二上行数据的先验概率信息;根据该第一上行数据的先验概率信息和该第一上行数据对应的初始对数似然比,确定该第一上行数据对应的最终对数似然比;根据该第二上行数据的先验概率信息和该第二上行数据对应的初始对数似然比,确定该第二上行数据对应的最终对数似然比。
结合上述可能的实现方式,在第七方面的第八种可能的实现方式中,该获取单元具体用于:获取该第一传输资源的信息和该第三传输资源的信息;根据该第一传输资源的信息和该第三传输资源的信息,确定该第二传输资源;获取该第二传输资源上传输的该联合编码数据。
结合上述可能的实现方式,在第七方面的第九种可能的实现方式中,若该第二传输资源具体为第二CTU,该第二CTU的索引IndxCTU由下式确定:
IndxCTU=(Sig1+Sig2)mod NCTU;
其中,Sig1为该第一传输资源包括的码资源的索引,Sig2为该第三传输资源包括的码资源的索引,NCTU为当前子帧中包括的CTU的数目。
结合上述可能的实现方式,在第七方面的第十种可能的实现方式中,该码资源包括下列中的一种:稀疏码多址接入码本、低密度签名组和码分多址码组。
结合上述可能的实现方式,在第七方面的第十一种可能的实现方式中,该接收单元具体用于接收该第一终端设备和该第二终端设备采用免授权传输方式分别发送的该第一上行数据和该第二上行数据。
结合上述可能的实现方式,在第七方面的第十二种可能的实现方式中,该装置为该网络设备。
第八方面,提供了另一种传输上行数据的装置,包括:确定单元,用于确定第一终端设备和第二终端设备进行发射分集传输;发送单元,用于向该第一终端设备和该第二终端设备中的至少一个终端设备发送第一指示信息,该第一指示信息用于指示该确定单元确定的该第一终端设备和该第二终端设备进行发射分集传输。
在第八方面的第一种可能的实现方式中,该确定单元具体用于根据该第一终端设备和该第二终端设备的传输可靠性信息,确定该第一终端设备和该第二终端设备进行发射分集传输,该传输可靠性信息包括下列信息中的至少一项:发射分集传输能力信息、当前上行信道质量信息和历史误码率信息。
基于上述技术方案,本发明实施例提供的传输上行数据的方法和装置,通过第一终端设备和第二终端设备采用发射分集传输机制传输上行数据,该第一终端设备获取第二终端设备的第二上行数据,对待发送的第一上行数据和该第二上行数据进行联合编码处理,以获得联合编码数据,并且采用的不同的传输资源分别向该网络设备发送该第一上行数据和该联合编码数据,能够在获得发射分集增益的同时降低传输时延。
为了更清楚地说明本发明实施例的技术方案,下面将对本发明实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面所描述的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付
出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是本发明实施例可以应用的通信系统的示意图。
图2是图1所示的通信系统中竞争传输单元的示意图。
图3是本发明实施例提供的传输上行数据的方法的示意性流程图。
图4是图3所示的传输上行数据的方法中第一竞争传输单元、第二竞争传输单元和第三竞争传输单元的分布示意图。
图5是本发明另一实施例提供的传输上行数据的方法的示意性流程图。
图6是本发明另一实施例提供的传输上行数据的方法的示意性流程图。
图7是本发明另一实施例提供的传输上行数据的方法的示意性流程图。
图8是本发明实施例提供的传输上行数据的装置的示意性框图。
图9是本发明另一实施例提供的传输上行数据的装置的示意性框图。
图10是本发明另一实施例提供的传输上行数据的装置的示意性框图。
图11是本发明另一实施例提供的传输上行数据的装置的示意性框图。
图12是本发明另一实施例提供的传输上行数据的装置的示意性框图。
图13是本发明另一实施例提供的传输上行数据的装置的示意性框图。
图14是本发明另一实施例提供的传输上行数据的装置的示意性框图。
图15是本发明另一实施例提供的传输上行数据的装置的示意性框图。
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明的一部分实施例,而不是全部实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例,都应属于本发明保护的范围。
应理解,本发明实施例的技术方案可以应用于各种通信系统,例如:全球移动通讯(Global System of Mobile communication,GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)系统、LTE频分双工(Frequency Division Duplex,FDD)系统、LTE时分双工(Time Division Duplex,TDD)、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)、全球互联微波接入(Worldwide
Interoperability for Microwave Access,WiMAX)通信系统、以及或者未来演进的公共陆地移动网络(Public Land Mobile Network,PLMN)中5G通信系统等。
还应理解,本发明实施例的技术方案还可以应用于各种基于非正交多址接入技术的通信系统,例如稀疏码多址接入(Sparse Code Multiple Access,SCMA)系统,当然SCMA在通信领域也可以被称为其他名称;进一步地,本发明实施例的技术方案可以应用于采用非正交多址接入技术的多载波传输系统,例如采用非正交多址接入技术正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)、滤波器组多载波(Filter Bank Multi-Carrier,FBMC)、通用频分复用(Generalized Frequency Division Multiplexing,GFDM)、滤波正交频分复用(Filtered-OFDM,F-OFDM)系统等。
还应理解,在本发明实施例中,终端设备可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网进行通信,该终端设备可称为接入终端、用户设备(User Equipment,UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字处理(Personal Digital Assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、未来5G网络中的终端设备或者未来演进的公共陆地移动网络(Public Land Mobile Network,PLMN)中的终端设备等。
还应理解,在本发明实施例中,网络设备可用于与终端设备通信,该网络设备可以是GSM系统或CDMA系统中的基站(Base Transceiver Station,BTS),也可以是WCDMA系统中的基站(NodeB,NB),还可以是LTE系统中的演进型基站(Evolutional Node B,eNB或eNodeB),或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备、未来5G网络中的网络侧设备或者未来演进的PLMN网络中的网络设备等。
现有的蜂窝通信系统,如GSM、WCDMA、LTE等系统,所支持的通信主要是针对语音和数据通信的。通常来说,一个传统基站支持的连接数有限,也易于实现。
下一代移动通信系统将不仅支持传统的通信,还将支持机器到机器
(Machine to Machine,M2M)通信,或者叫做机器类通信(Machine Type Communication,MTC)通信。根据预测,到2020年,连接在网络上的MTC设备将会达到500到1000亿,这将远超现在的连接数。对M2M类业务,由于其业务种类千差万别,对网络需求存在很大差异。大致来说,会存在如下几种需求:(I)可靠传输,但对时延不敏感;(II)低延迟,高可靠传输。
对可靠传输、而对时延不敏感的业务,较容易处理。但是,对低延迟、高可靠传输类的业务,不仅要求传输时延短,而且要求可靠,比如交通工具到交通工具(Vehicle to Vehicle,V2V)业务。如果传输不可靠,会导致重传而造成传输时延过大,不能满足要求。
由于大量连接的存在,使得未来的无线通信系统和现有的通信系统存在很大差异。大量连接需要消耗更多的资源接入终端设备以及需要消耗更多的资源用于终端设备的数据传输相关的调度信令的传输。
图1是本发明实施例可以应用的系统100的架构示意图。该系统100包括网络设备102和位于该网络设备102的覆盖范围以内的多个终端设备104-114,其中,该网络设备102可以分别与该多个终端设备通过无线连接或有线连接或其他方式连接,并且该网络设备102可以支持多个蜂窝载波的同时传输。图1示例性地示出了一个网络设备和六个终端设备,可选地,该系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备,本发明实施例对此不做限定。
本发明实施例中的网络可以是指PLMN或者D2D网络或者M2M网络或者其他网络,图1只是举例的简化示意图,网络中还可以包括其他网络设备,图1中未予以画出。
为了解决未来网络大量的MTC类业务,以及满足低时延、高可靠的业务传输,系统100中的网络设备102可以采用免授权(Grant Free)传输方案,该方案可以适用于上行数据传输。在该免授权传输机制中,终端设备无需通过调度请求方式请求网络设备分配传输资源,而是直接竞争资源并进行上行数据的传输,从而可以减少系统信令开销并且降低传输时延。
免授权传输可以理解为如下含义中的任意一种或多种含义,或者理解为多种含义中的部分技术特征的组合:
1、免授权传输可以指:网络设备预先分配并告知终端设备多个传输资源;终端设备有上行数据传输需求时,从网络设备预先分配的多个传输资源
中选择至少一个传输资源,使用所选择的传输资源发送上行数据;网络设备在该预先分配的多个传输资源中的至少一个传输资源上检测终端设备发送的上行数据。该检测可以是盲检测,也可能根据上行数据中某一个控制域进行检测,或者是其他方式进行检测。
该盲检测可以理解为在不预知是否有数据到达的情况下,对可能到达的数据进行的检测。该盲检测也可以理解为没有显式的信令指示下的检测。
2、免授权传输可以指:网络设备预先分配并告知终端设备多个传输资源,以使终端设备有上行数据传输需求时,从网络设备预先分配的多个传输资源中选择至少一个传输资源,并使用所选择的传输资源发送上行数据。
3、免授权传输可以指:终端设备获取预先分配的多个传输资源的信息,在有上行数据传输需求时,从该多个传输资源中选择至少一个传输资源,并且使用所选择的传输资源发送上行数据。其中,该终端设备可以通过多种方式获取该多个传输资源的信息,例如,终端设备与传输资源之间的映射关系可以在协议中定义,或者由网络设备通过指令指示,等等。
4、免授权传输可以指:不需要网络设备动态调度即可实现终端设备的上行数据传输的方法,该动态调度可以是指终端设备每次进行上行数据传输的传输资源都需要网络设备通过信令进行指示的一种调度方式。可选地,该传输资源可以是终端设备接收到该信令的时刻以后的一个或多个传输时间单位的传输资源。一个传输时间单位可以是指一次传输的最小时间单元,比如传输时间间隔(Transmission Time Interval,TTI),数值可以为1ms,或者可以是预先设定的传输时间单元。可选地,实现终端设备的上行数据传输可以理解为允许两个或两个以上终端设备的数据在相同的时频资源上进行上行数据传输。
5、免授权传输可以指:终端设备在不需要网络设备授权的情况下进行上行数据传输。该授权可以指终端设备向网络设备发送上行调度请求,网络设备在接收到该调度请求之后,向该终端设备发送上行授权(UL grant),其中该上行授权用于指示为终端设备分配的上行传输资源。
6、免授权传输可以指:一种竞争传输方式,具体地可以指多个终端设备在预先分配的相同的时频资源上同时进行上行数据传输,而无需网络设备进行授权。
可选地,上述数据可以为包括业务数据或者信令数据。
在免授权传输机制中,传输资源可以包括但不限于如下资源的一种或多种的组合:时域资源,如无线帧、子帧、符号等;频域资源,如子载波、资源块等;空域资源,如发送天线、波束等;码域资源,如稀疏码多址接入(Sparse Code Multiple Access,SCMA)码本、低密度签名(Low Density Signature,LDS)序列、CDMA码等;上行导频资源。
竞争传输单元(Contention Transmission Unit,CTU)可以为免授权传输的基本传输资源。CTU可以指时间、频率、码域相结合的传输资源,或者,可以指时间、频率、导频相结合的传输,或者,可以指时间、频率、码域、导频相结合的传输资源。
CTU的接入区域可以指CTU对应的接入区域。
如上的传输资源可以根据包括但不限于以下控制机制进行传输:上行功率控制,如上行发送功率上限控制等;调制编码方式设置,如传输块大小、码率、调制阶数设置等;重传机制。
在免授权传输机制中,在时间频率域定义至少一个竞争接入区域(Contention Access Region,CAR),CAR也可以被称为CTU的接入区域或其他相同和类似含义的名称,其中,CAR可以指用于免授权传输的时频区域,不同的CAR可以分别对应于不同的时频资源,并且每个CAR可以进一步包括至少一个竞争传输单元(Contention Transmission Unit,CTU)。CTU可以为免授权传输的基本传输资源单元,CTU可以是时间、频率、码和导频资源中的至少一种资源的组合,例如,CTU可以指由时间、频率和码域资源组合而成的传输资源,或者可以指由时间、频率和导频资源组合而成的传输资源,或者可以指由时间、频率、码域和导频资源组合而成的传输资源,但本发明实施例不限于此。申请号PCT/CN2014/073084、名称为“System and Method for Uplink Grant-free Transmission Scheme”的专利申请给出了一种免授权传输的技术方案,其中,可以将传输资源划分为不同的CTU,每个CTU可以被分配一组码,所分配的一组码可以是CDMA码,也可以是SCMA码本或LDS或签名等,并且可选地,每个码可以对应一组导频。
终端设备104-114在接入网络设备102之后,可以向网络设备102上报自身的能力信息,其中,该能力信息可以包括用于指示是否具有免授权传输的能力的信息。这样,网络设备102可以根据各个终端设备上报的能力信息,采用免授权传输机制或传统的请求-授权机制与终端设备进行通信。可选地,
网络设备102可以通知终端设备进行免授权传输的必要信息,例如该网络设备102可以指示终端设备进行免授权传输,向终端设备发送搜索空间信息、CAR信息、CTU信息、调制编码方式信息,等等,其中,每个终端设备被映射到一个或多个CTU,该映射规则可以预定义或者由网络设备配置。终端设备可以选择一个码以及与该码对应的导频组中的一个导频进行上行传输,但本发明实施例对此不做限定。
PCT/CN2014/073084的申请内容也可以理解为通过引用作为本发明实施例内容的一部分,为了简洁,这里不再赘述。
还应理解,本发明实施例主要应用于图1和图2所示的免授权传输场景,但还可以应用于除图1之外的其它通信系统,本发明实施例对此不做限定。
图2示例性地示出了四个CAR 202-208,其中,系统可用带宽被分成了多个不同的时间频率区域,每个CAR占用不同的资源块,其中,可选地,每个CAR占用的资源块的数量可以预定义,例如,CAR 202占用频带的资源块Resource Block,RB)1-4。如图2所示,每个CAR可以进一步划分成至少一个CTU,其中,每个CTU是特定时间、频率、签名和导频的组合,图2中每个CAR对应相同的CTU映射关系,这里为了说明,从不同的角度分别示出四个CAR的映射关系,但本发明实施例不限于此。如图2所示,每个CAR支持6个签名(S1-S6),每个签名可以对应于6个导频,因此共构成36个导频(P1-P36),对应36个CTU,但本发明实施例不限于此。
应理解,图2示例性地示出了四个CAR并且每个CAR包括36个CTU,但本发明实施例还可以包括其它数量的CAR并且每个CAR可以包括其它数量的CTU,本发明实施例对此不做限定。
为了解决现有技术中采用HARQ传输机制而造成的传输时延,本发明实施例提供了上行发射分集传输机制。在该机制中,如果至少两个终端设备分别有待向网络设备传输的上行数据,例如,数据1、…、数据N,N≥2,则该至少两个终端设备可以分别向网络设备发送分别对应的上行数据,并且该至少两个终端设备分别对应的上行数据一起被进行编码处理(例如异或处理或者turbo编码处理,等等)后发送至该网络设备。其中,可以由该至少两个终端设备中的一个或多个终端设备对该至少两个终端设备分别对应的上行数据进行联合编码处理,即将该至少两个终端设备分别对应的上行数据一起进行编码处理,并向该网络设备发送该编码处理获得的联合编码数据。
这样,该网络设备可以接收到数据1、…、数据N,以及接收到该至少两个终端设备中的至少一个终端设备分别发送的联合编码数据,其中,该联合编码数据是通过对数据1至数据N进行编码处理获得的。这样,网络设备可以从接收到的联合编码数据中获得分别与数据1、…、数据N对应的部分信息,并且将从该接收到的联合编码数据获得的各部分信息分别与从接收到的各个终端设备单独发送的上行数据中获得的信息进行合并处理,也就是说,将从接收到的联合编码数据获得的与数据i(i=1,…,N)对应的部分信息和从接收到的单独发送的数据i中获得的信息进行合并处理,从而提高该网络设备成功接收该至少两个终端设备分别发送的上行数据的概率,提高上行数据传输的可靠性。此外,由于终端设备直接向网络设备发送联合编码数据,无需等待网络设备发送的用于指示未成功接收上行数据的反馈,因此与现有技术相比能够降低传输时延。
图3示出了本发明实施例提供的传输上行数据的方法300,该方法300可以由第一终端设备执行。
S310,获取第二终端设备的第二上行数据。
该第一终端设备可以从网络设备或该第二终端设备获取该第二上行数据。可选地,该第一终端设备可以在确定与该第二终端设备进行发射分集传输时,获取该第二终端设备的第二上行数据;或者,该第一终端设备可以在获取到该第二终端设备的第二上行数据时,确定与该第二终端设备进行发射分集传输;或者,该第一终端设备也可以在确定与该第二终端设备进行发射分集传输的同时,获取到该第二终端设备的第二上行数据,本发明实施例对此不做限定。
S320,对该第一终端设备的第一上行数据和该第二上行数据进行联合编码处理,得到联合编码数据。
该第一终端设备可以将该第一上行数据和该第二上行数据一起进行编码处理,例如,网络编码或turbo编码,以获得联合编码数据。
S330,采用第一传输资源向网络设备发送该第一上行数据,并且采用不同于该第一传输资源的第二传输资源向该网络设备发送该联合编码数据。
该第一终端设备可以对该第一上行数据进行编码处理,并采用第一传输资源向网络设备发送编码处理后的该第一上行数据,以及采用第二传输资源向该网络设备发送该联合编码数据。此外,该第二终端设备也可以对该第二
上行数据进行编码处理,并采用第三传输资源向该网络设备发送编码处理后的该第二上行数据,其中,该第三传输资源可以不同于该第二传输资源,并且可选地,该第三传输资源与该第一传输资源可以为相同或不同的传输资源,但本发明实施例不限于此。
应理解,在本发明实施例中,上行数据是指终端设备通过上行传输链路向网络设备发送的数据,但本发明实施例不限于此。
因此,根据本发明实施例的传输上行数据的方法,通过第一终端设备和第二终端设备采用发射分集传输机制传输上行数据,该第一终端设备获取第二终端设备的第二上行数据,对待发送的第一上行数据和该第二上行数据进行联合编码处理,以获得联合编码数据,并且采用的不同的传输资源分别向该网络设备发送该第一上行数据和该联合编码数据,能够在获得发射分集增益的同时降低传输时延。
该第二终端设备可以具体为一个或多个终端设备,此外,该第一终端设备可以在一次或多次上行数据传输中与第二终端设备进行发射分集传输,例如,该第一终端设备可以在每次进行上行数据传输时均与第二终端设备进行发射分集传输;或者,该第一终端设备在一次或多次上行传输时,与不同于第二终端设备的其他终端设备进行发射分集传输;或者,该第一终端设备在一次或多次上行数据传输中采用非发射分集的方式,本发明实施例对此不作限定。
在本发明实施例中,第一终端设备可以通过多种方式确定与第二终端设备进行发射分集传输。例如,网络设备通过信令指示;或者,通过以D2D方式广播请求和接收响应的方式;或者,该网络设备将服务的至少一个终端设备进行分组,则第一终端设备可以与所在分组内的其他终端设备进行发射分集传输,等等,本发明实施例对此不作限定。
作为一个可选实施例,在S310之前,该方法300还包括:
接收该网络设备发送的第一指示信息,该第一指示信息用于指示该第一终端设备与该第二终端设备进行发射分集传输;
根据该第一指示信息,确定与该第二终端设备进行发射分集传输。
可选地,该网络设备可以根据该第一终端设备和该第二终端设备的信息,例如,能力信息(例如是否具有发射分集传输的能力)、是否有进行发射分集传输的意愿、业务类型信息、当前上行信道质量信息、或传输可靠性
历史信息(例如误码率),等等,确定该第一终端设备与该第二终端设备进行发射分集传输。可选地,作为另一实施例,该网络设备还可以进一步确定由该第一终端设备和该第二终端设备中的哪个或哪几个终端设备传输联合编码数据,例如,根据第一终端设备和该第二终端设备的能力信息、当前信道质量信息等,确定该第一终端设备和该第二终端设备中用于传输联合编码数据的至少一个目标终端设备,可选地,该第一指示信息还可以用于指示该第一终端设备和该第二终端设备中用于传输联合编码数据的至少一个目标终端设备,但本发明实施例不限于此。
该网络设备可以在该第一终端设备和该第二终端设备附着到该网络设备之后,主动做出该第一终端设备和该第二终端设备进行发射分集传输的决定;或者,可以根据接收到的该第一终端设备和/或该第二终端设备发送的发射分集传输请求,做出该第一终端设备和该第二终端设备进行发射分集传输的决定。其中,该决定可以动态变化的,即该第一指示信息仅适用于本次上行数据传输,或者是半静态的,即该第一指示信息适用于一段时间内的上行数据传输(直到下一次接收到网络设备发送的指示信息之前),或者在该第一终端设备和该第二终端设备驻留期间保持不变,但本发明实施例不限于此。
该第一指示信息可以携带在高层信令或物理层信令中,例如,通过下行控制信道进行显性或隐性地指示,但本发明实施例不限于此。如果该网络设备对多个终端设备进行分组,可选地,该第一指示信息可以包括该第二终端设备所属的第二终端设备分组的组标识信息,或进一步包括该第一终端设备所属的第一终端设备分组的组标识信息,其中,该第一终端设备分组与该第二终端设备分组可以为相同或不同的分组,可选地,该第一指示信息还可以进一步包括该第二终端设备在该第二终端设备分组内的编号信息,其中,该编号信息可以具体为短标识,可以在该第二终端设备分组内唯一标识该第二终端设备,因此,与该第一指示信息包括该第二终端设备的标识信息(例如,设备标识、用户标识、小区无线网络临时标识等等)相比,能够降低该第一指示信息的开销。
可选地,如果该第一终端设备和该第二终端设备属于同一个终端设备分组,即该第一终端设备分组和该第二终端设备分组相同,则该第一指示信息可以仅包括该第二终端设备在该终端设备分组内的编号信息,相应地,该网
络设备可以根据该组标识信息以及编码信息确定该第二终端设备,或者该第一指示信息还可以进一步包括该终端设备分组的组标识信息和/或该第一终端设备在该终端设备分组内的编号信息,本发明实施例不限于此。
作为另一个可选实施例,在S310之前,该方法300还包括:
向包括该第二终端设备在内的至少一个终端设备发送发射分集传输请求,该发射分集传输请求用于请求与该第一终端设备进行发射分集传输;
接收该第二终端设备根据该发射分集传输请求发送的发射分集传输响应;
根据接收到的该发射分集传输响应,确定与该第二终端设备进行发射分集传输。
该第一终端设备可以在发现上一次上行数据传输失败时,确定需要进行发射分集传输,并且发送该发射分集传输请求,或者在确定有待传输的上行数据时,发送该发射分集传输请求,本发明实施例不限于此。该第一终端设备可以以D2D方式发送该发射分集传输请求。可选地,该第一终端设备可以广播该发射分集传输请求,或者如果该第一终端设备属于某一个终端设备分组,则该第一终端设备可以向该终端设备分组包括的至少一个其它用户设备组播该发射分集传输请求,或者,该第一终端设备也可以向包括该第二终端设备在内的至少一个终端设备中的每个终端设备单播该发射分集传输请求,本发明实施例对此不做限定。
可选地,该发射分集传输请求可以携带下列信息中的至少一种:该第一终端设备的标识信息、能力信息、业务类型信息、待传输的上行数据的信息和传输资源信息,或者该发射分集传输请求也可以携带其它信息,本发明实施例对此不做限定。接收到该发射分集传输请求的终端设备可以根据该发射分集传输请求以及自身的情况(例如上行数据传输的历史信息、是否具有进行发射分集传输的能力、传输资源信息,等等),确定是否与该第一终端设备进行发射分集传输。如果同意与该第一终端设备进行发射分集传输,则可以以单播、组播或广播方式向该第一终端设备发送发射分集传输响应。该第一终端设备可以根据接收到的发射分集传输响应,确定与哪个或哪几个终端设备进行发射分集传输。可选地,该发射分集传输响应可以携带下列信息中的至少一种:该第二终端设备的标识信息、该第二终端设备待传输的上行数据和传输资源信息,或者该发射分集传输响应也可以携带其它信息,本发明
实施例对此不做限定。
作为另一个实施例,也可以由该第二终端设备发送该发射分集传输请求。此时,该第一终端设备可以接收该第二终端设备发送的发射分集传输请求,根据该发射分集传输请求,确定与该第二终端设备进行发射分集传输,并且向该第二终端设备发送发射分集传输响应,但本发明实施例不限于此。
可选地,作为另一实施例,该第一终端设备和/或该第二终端设备还可以向该网络设备发送第二指示信息,以指示该第一终端设备和该第二终端设备进行发射分集传输。相应地,该方法300还包括:向该网络设备发送第二指示信息,该第二指示信息用于指示该第一终端设备与该第二终端设备进行发射分集传输。
该第二指示信息可以显性或隐性地指示该第一终端设备和该第二终端设备进行发射分集传输。作为一个可选实施例,该第一终端设备可以在发送该第一上行数据和/或联合编码数据时进行循环冗余校验(Cyclic Redundancy Check,CRC)处理,即为该第一上行数据和/或联合编码数据添加CRC码,并且采用该第二终端设备的标识对该CRC码进行加扰,以隐性地指示该第一终端设备和该第二终端设备进行分集发射传输。此时,可选地,在S330之前,该方法300还包括:
为该第一上行数据添加CRC码,其中,该CRC码采用该第二终端设备的标识进行加扰;
相应地,在S330中,该第一终端设备向该网络设备发送添加了该CRC码的该第一上行数据。
这样,该网络设备根据该第一上行数据的CRC码采用第二终端设备的标识进行加扰,可以确定该第一终端设备和该第二终端设备进行发射分集传输。可选地,该第二终端设备也可以在向该网络设备发送第二上行数据时,采用该第一终端设备的标识对该第二上行数据的CRC码进行加扰,以指示该第二上行数据是以发射分集方式传输的。此外,该第一终端设备和/或该第二终端设备还可以采用其他方式进行指示,本发明实施例对此不做限定。
在S310中,该第一终端设备可以通过多种方式获取该第二终端设备的第二上行数据。可选地,S310,获取第二终端设备的第二上行数据,包括:通过D2D传输接收该第二终端设备发送的该第二上行数据。
该第二终端设备可以采用带内或带外传输方式向该第一终端设备发送
该第二上行数据,即该第二终端设备可以采用授权载波或非授权载波向该第一终端设备发送该第二上行数据,此外,该第二终端设备可以以单播或广播形式发送该第二上行数据,本发明实施例对此不做限定。可选地,该发射分集传输响应可以携带该第二上行数据,以减少该第一终端设备和该第二终端设备之间的信令交互,但本发明实施例不限于此。
在S320中,该第一终端设备可以对该第一上行数据和该第二上行数据进行联合编码处理,以获得联合编码数据,该编码处理可以为异或处理,例如,假设该第一上行数据为m1,该第二上行数据为m2,则该第一终端设备可以对m1和m2进行网络编码,得到联合编码数据m3,其中,
为异或操作。可选地,该第一终端设备也可以对该第一上行数据和该第二上行数据一起进行其它编码处理,例如,turbo编码,等等,本发明实施例对此不做限定。
在S330中,该第一终端设备采用不同的传输资源分别向该网络设备发送该第一上行数据和联合编码数据,其中,该第一传输资源不同于该第二传输资源可以指该第一传输资源和该第二传输资源中包括的下列资源中的至少一项不同:时间、频率、码和导频,例如,该第一传输资源和该第二传输资源可以对应相同的时频资源,但对应不同的码资源;或者该第一传输资源和该第二传输资源对应相同的时频资源和码资源,但对应于不同的导频资源,但本发明实施例不限于此。
在本发明实施例中,可以只有该第一终端设备发送该联合编码数据,而该第二终端设备仅发送该第二上行数据。可选地,作为另一个实施例,该第二终端设备也可以发送该联合编码数据。相应地,该方法300还包括:通过D2D传输向该第二终端设备发送该第一上行数据,以使得该第二终端设备可以执行类似的处理,即对该第一上行数据和该第二上行数据进行联合编码处理,得到联合编码数据,并向该网络设备发送该联合编码数据,但本发明实施例不限于此。
在本发明实施例中,该第一终端设备可以首先确定发送该第一上行数据时采用的第一传输资源,然后根据该第一传输资源确定发送该联合编码数据时采用的第二传输资源。作为一个可选实施例,该发送该联合编码数据之前,该方法300还包括:
获取该第二终端设备发送该第二上行数据时采用的第三传输资源的信
息;
根据该第三传输资源的信息和该第一传输资源,确定发送该联合编码数据所采用的该第二传输资源。
该第一终端设备可以从该第二终端设备发送的消息中,获取该第三传输资源的信息,作为一个可选的实施例,该发射分集传输响应中携带该第三传输资源的信息。该第二终端设备可以在相同或不同的消息中发送该第二上行数据和该第三传输资源的信息,但本发明实施例不限于此。
可选地,该第三传输资源的信息可以包括发送该第二上行数据时采用的时间、频率、码和导频资源中的至少一种,其中,在本发明实施例中,码资源可以包括下列中的至少一种:稀疏码多址接入码本、低密度签名序列和码分多址码,应理解,以上列举的作为码域资源的具体实例仅为实例性说明,本发明并不限定于此,其他能够用于传输的码本均落入本发明的保护范围内。
该SCMA码本包括至少两个码字,该SCMA码本用于指示至少两种数据组合与该至少两个码字的映射关系,该码字为多维复数向量,用于指示数据与多个调制符号之间的映射关系,该调制符号包括至少一个零调制符号和至少一个非零调制符号。
具体地,SCMA是一种非正交的多址接入技术,当然本领域技术人员也可以不把这个技术称之为SCMA,也可以称为其他技术名称。该SCMA技术借助码本在相同的资源单元上传输多个不同的数据流(即多个不同的数据流复用相同的资源单元),其中不同的数据流使用的码本不同,从而达到提升资源的利用率的目的。数据流可以来自同一个用户设备也可以来自不同的用户设备。
在SCMA技术中,码字可以表示为多维复数向量,其维数为两维或两维以上,用于表示数据与两个或两个以上调制符号之间的映射关系,该调制符号包括至少一个零调制符号和至少一个非零调制符号,零调制符号和非零调制符号的关系可以为零调制符号个数不少于非零调制符号个数,数据可以为二进制比特数据或者多元数据。码本由两个或两个以上的码字组成,其中码本中包含的码字可以互不相同。码本可以表示一定长度的数据的可能的数据组合与码本中码字的映射关系,该映射关系可以是直接的映射关系。SCMA技术通过将数据流中的数据按照一定的映射关系直接映射为码本中
的码字即多维复数向量,实现数据在多个资源单元上的扩展发送。SCMA技术中的直接映射关系可以理解为数据流中的数据不需要被映射为中间调制符号,或者有其他中间处理过程。这里的数据可以是二进制比特数据也可以是多元数据,多个资源单元可以是时域、频域、空域、时频域、时空域、时频空域的资源单元。
SCMA采用的码字可以具有一定稀疏性,比如说码字中的零元素数量可以不少于调制符号数量,以便于接收端可以利用多用户检测技术来进行较低复杂度的译码。这里,以上列举的零元素数量与调制符号的关系仅为稀疏性一个示例性说明,本发明并不限定于此,零元素数量与非零元素数量的比例可以根据需要任意设定。
LDS序列为多维复数向量,该多维向量包括至少一个零元素和至少一个非零元素,该签名序列用于对调制符号进行幅度和相位的调整,该调制符号是通过调制星座对数据进行星座映射后得到的。
具体地说,LDS技术也是一种非正交多址接入和传输技术,当然该LDS技术在通信领域还可以被称为其他名称。该类技术将来自一个或多个用户的O(O为不小于1的整数)个数据流叠加到P(P为不小于1的整数)个子载波上进行发送,其中每个数据流的每个数据都通过稀疏扩频的方式扩展到P个子载波上。当O的取值大于P时,该类技术可以有效地提升网络容量,包括系统可接入用户数和频谱效率等。因此,LDS技术作为一种重要的非正交接入技术,已经引起越来越多的关注,并成为未来无线蜂窝网络演进的重要备选接入技术。
作为一个可选实施例,该第三传输资源的信息可以包括码资源的信息,此时,可选地,该第一终端设备可以根据该第一传输资源中包括的码资源以及该第三传输资源中包括的码资源的信息,确定该第二传输资源,但本发明实施例不限于此。
在本发明实施例中,该第一终端设备和该第二终端设备可以采用免授权传输机制进行发射分集传输,即该第一终端设备采用免授权传输方式发送该第一上行数据和该联合编码数据,该第二终端设备采用免授权传输方式发送该第二上行数据。可选地,如上文所述,可以将系统的传输资源划分为不同的CTU,相应地,不同的传输资源可以对应于不同的CTU。此时,该第一传输资源可以具体为第一CTU,该第二传输资源可以具体为第二CTU,第
三传输资源可以具体为第三CTU。该第二CTU可以不同于该第一CTU和该第三CTU,该而第一CTU和该第二CTU可以相同或不同。可选地,该第一CTU、该第二CTU和该第三CTU中的任意两个CTU可以属于相同或不同的竞争接入区域,其中,当该第二CTU所属的竞争接入区域不同于该第一CTU和该第三CTU所属的竞争接入区域时,能够获得更高的分集增益,但本发明实施例不限于此。
该第一终端设备可以采用一定的映射规则确定该第一CTU和该第二CTU。作为一个可选实施例,该第一CTU的索引IndxCTU1可以由下式确定:
IndxCTU1=Sig1mod NCTU (1)
其中,Sig1为该第一传输资源包括的码资源的索引,NCTU为当前子帧中的CTU的数量,具体地,该当前子帧可以具体为发送该第一上行数据时占用的子帧。
第二终端设备也可以相同的映射规则确定该第三CTU。例如,该第三CTU的索引IndxCTU3可以由下式确定:
IndxCTU3=Sig2mod NCTU (2)
其中,Sig2为该第三传输资源包括的码资源的索引,NCTU为当前子帧中的CTU的数量,即发送该第二上行数据时所占用的子帧。
可选地,该第一终端设备可以根据第一CTU包括的码资源和第三CTU包括的码资源,确定该第二CTU。作为一个可选实施例,该第二CTU的索引IndxCTU2可以由下式确定:
IndxCTU2=(Sig1+Sig2)mod NCTU (3)
可选地,该第一终端设备和该第二终端设备还可以根据其它函数形式或其它传输资源信息,确定该第一CTU、第二CTU或该第三CTU,例如,根据该第一终端设备的标识和该第二终端设备的标识,确定该第二CTU,但本发明实施例对此不作限定。
作为另一个可选实施例,该网络设备在接收到该第一上行数据、该第二上行数据和该联合编码数据之后,可以确定是否成功接收该第一上行数据和该第二上行数据,如果该网络设备成功接收该第一上行数据和该第二上行数据,则本次发射分集传输结束,或者该网络设备可以向该第一终端设备和/或该第二终端设备发送用于指示成功接收的反馈信息(例如ACK),而如果该网络设备未成功接收该第一上行数据和/或第二上行数据,则可选地,该网
络设备可以向该第一终端设备和/或该第二终端设备发送用于指示未成功接收的反馈信息(例如NACK),相应地,该第一终端设备和/或该第二终端设备可以进行以传统方式或发射分集传输方式进行数据重传。例如,该第一终端设备接收到该网络设备发送的用于指示未成功第一上行数据的反馈信息,则该第一终端设备可以根据该反馈信息向该网络设备重传该第一上行数据,例如以传统方式重传该第一上行数据,但本发明实施例不限于此。
因此,根据本发明实施例的传输上行数据的方法,通过第一终端设备和第二终端设备采用发射分集传输机制传输上行数据,该第一终端设备获取第二终端设备的第二上行数据,对待发送的第一上行数据和该第二上行数据进行联合编码处理,以获得联合编码数据,并且采用的不同的传输资源分别向该网络设备发送该第一上行数据和该联合编码数据,能够在获得发射分集增益的同时降低传输时延。
图4示出了该第一CTU、该第二CTU和该第三CTU的分布示例,但本发明实施例不限于此。此外,上文可以表示上文以在同一子帧中发送该第一上行数据、该第二上行数据和该联合编码数据为例进行描述,在本发明实施例中,也可以在不同的子帧中发送该第一上行数据、该第二上行数据和该联合编码数据中的至少两种数据,本发明实施例对此不做限定。
因此,根据本发明实施例的传输上行数据的方法,通过第一终端设备和第二终端设备采用发射分集传输机制传输上行数据,该第一终端设备获取第二终端设备的第二上行数据,对待发送的第一上行数据和该第二上行数据进行联合编码处理,以获得联合编码数据,并且采用的不同的传输资源分别向该网络设备发送该第一上行数据和该联合编码数据,能够在获得发射分集增益的同时降低传输时延。
图5示出了本发明另一实施例提供的传输上行数据的方法400。该方法400可以由第二终端设备执行。
S410,确定待发送的上行数据以及该上行数据的传输资源。
该第二终端设备可以通过多种方式确定该上行数据的传输资源。例如,该第二终端设备采用免授权传输方式向该网络设备发送该上行数据时,可以采用上文中的式(2)确定该上行数据的传输资源,或者可以根据该第二终端设备的标识确定该上行数据的传输资源,本发明实施例对该第二终端设备确定传输资源的方式不做限定。
S420,向第一终端设备发送该上行数据和该传输资源的信息。
该第二终端设备可以在确定与第一终端设备进行发射分集传输时,向该第一终端设备发送待向网络设备传输的上行数据以及该第二终端设备向该网络设备发送该上行数据时采用的传输资源的信息。可选地,该第二终端设备可以主动向该第一终端设备发送该上行数据,例如该第二终端设备在确定自己不具有传输联合编码数据的能力或条件(例如,当前电量、待传输的上行数据的大小,等等)时,向该第一终端设备发送该上行数据;或者,第二终端设备也可以根据该网络设备发送的用于指示由该第一终端设备发送联合编码数据或该第一终端设备协助该第二终端设备发送上行数据的指示,向该第一终端设备发送该上行数据;或者,该第二终端设备也可以通过与该第一终端设备协商,例如,接收到该第一终端设备发送的请求,向该第一终端设备发送该上行数据,本发明实施例对此不做限定。
该第一终端设备可以对接收到的该第二终端设备发送的上行数据与该第一终端设备的上行数据进行联合编码处理,以获得联合编码数据,并向该网络设备发送该联合编码数据。
此外,该第二终端设备还可以可选地向该第一终端设备发送该传输资源的信息,该传输资源的信息用于指示该第二终端设备向该网络设备发送该上行数据时采用的传输资源,以便于该第一终端设备根据该传输资源的信息,确定发送联合编码数据时采用的传输资源。
S430,采用该传输资源向网络设备发送该上行数据。
因此,根据本发明实施例的传输上行数据的方法,通过第一终端设备和第二终端设备采用发射分集传输机制传输上行数据,该第二终端设备向该第一终端设备发送第二上行数据以及该第二上行数据的传输资源的信息,以便于该第一终端设备对待传输的第一上行数据和该接收到的该第二终端设备发送的第二上行数据进行联合编码处理,以获得联合编码数据,并且采用的不同的传输资源分别向该网络设备发送该第一上行数据和该联合编码数据,而该第二终端设备向该网络设备发送该第二该上行数据,能够在获得发射分集增益的同时降低传输时延。
作为一个可选实施例,在S420之前,该方法400还包括:
接收该网络设备发送的第一指示信息,该第一指示信息用于指示该第一终端设备与该第二终端设备进行发射分集传输;
根据该第一指示信息,确定与该第一终端设备进行发射分集传输。
可选地,该第一指示信息还可以用于指示由该第一终端设备发送该联合编码数据,相应地,该第二终端设备可以根据该第一指示信息向该第一终端设备发送待传输的该上行数据,但本发明实施例不限于此。
该第一指示信息可以显性或隐性地进行指示。作为一个可选实施例,该网络设备可以将多个终端设备进行分组,则该第一终端设备和该第二终端设备可以属于相同或不同的分组。可选地,该第一指示信息包括该第一终端设备所属终端设备分组的组标识信息以及该第一终端设备在该终端设备分组内的编号信息。可选地,该第一指示信息还可以进一步包括该第一终端设备所在的第二终端设备分组的组标识信息以及该第一终端设备在该第二终端设备分组内的编号信息。
作为另一个可选实施例,在S420之前,该方法400还包括:
接收该第一终端设备发送的发射分集传输请求,该发射分集传输请求用于请求与该第一终端设备进行发射分集传输;
根据该发射分集传输请求,确定与该第一终端设备进行发射分集传输;
相应地,该方法400还包括:向该第一终端设备发送发射分集传输响应。
该第二终端设备可以根据该发射分集传输请求,或进一步根据该第二终端设备的上行传输信息(当前上行信道质量、之前的上行传输是否成功,历史误码率,等等),确定与该第一终端设备进行发射分集传输,但本发明实施例不限于此。
可选地,该发射分集传输响应可以携带该待传输的上行数据和/或该传输资源的信息,但本发明实施例不限于此。
作为另一个可选实施例,也可以由该第二终端设备发起发射分集传输,相应地,在S420之前,该方法还包括:
向包括该第一终端设备在内的至少一个终端设备发送发射分集传输请求,该发射分集传输请求用于请求与该第二终端设备进行发射分集传输;
接收该第一终端设备根据该发射分集传输请求发送的发射分集传输响应;
根据接收到的该发射分集传输响应,确定与该第一终端设备进行发射分集传输。
作为另一个可选实施例,在由该第一终端设备和该第二终端设备通过协
商确定进行发射分集传输时,该第一终端设备和/或该第二终端设备还可以向该网络设备上报该传输方式。相应地,在S420之前,该方法400还包括:
向该网络设备发送第二指示信息,该第二指示信息用于指示该第一终端设备与该第二终端设备进行发射分集传输。
其中,该第二指示信息可以显性或隐性地指示该第一终端设备与该第二终端设备进行发射分集传输。作为一个可选实施例,该第二终端设备可以为该上行数据添加CRC码,并且采用该第一终端设备的标识对该CRC码进行加扰,以及向该网络设备发送添加了该CRC码的上行数据,以隐性地指示该上行数据是和该第一终端设备发送的上行数据以发射分集方式传输的。或者,该第一终端设备也可以向该网络设备发送添加了采用第二终端设备的标识进行加扰的CRC码的第一上行数据,以指示该第一上行数据是与该第二终端设备的上行数据以发射分集方式发送的,本发明实施例对此不做限定。
在S420中,该第二终端设备可以将该待传输的上行数据和该传输资源的信息携带在同一个或不同的消息中发送,此外,该第二终端设备可以采用授权载波或非授权载波向该第一终端设备发送该上行数据或该传输资源的信息,本发明实施例不限于此。
作为一个可选实施例,S420,向该第一终端设备发送上行数据和该传输资源的信息,包括:
通过D2D传输向该第一终端设备发送该上行数据和该传输资源的信息。
可选地,该传输资源的信息可以包括时间、频率、码和导频中的至少一种资源的信息。该第二终端设备可以以免授权传输方式发送该上行数据。可选地,该第二终端设备可以采用一定的映射规则将该上行数据映射到某个CTU,并采用该CTU发送该上行数据。此时,作为一个可选实施例,该传输资源的信息可以包括CTU的索引、码资源的索引、第二终端设备的标识和导频索引中的至少一种,等等,本发明实施例不限于此。
作为一个可选实施例,该传输资源的信息可以包括码资源的信息,以使得该第一终端设备可以根据该码资源的信息确定发送联合编码数据时采用的第二传输资源,但本发明实施例不限于此。
作为一个可选实施例,码资源可以包括下列中的一种:稀疏码多址接入码本、低密度签名序列和码分多址码。或者码资源还可以具有其它形式,本发明实施例对此不做限定。
作为另一个可选实施例,该方法400还包括:获取该第一终端设备的第一上行数据,并且将该第一上行数据与该第二终端设备的该上行数据进行联合编码处理,以获得联合编码数据,并且采用与该第二终端设备的上行数据不同的传输资源向该网络设备发送该联合编码数据。其中,该第二终端设备可以通过D2D技术接收该第一终端设备发送的第一上行数据,但本发明实施例不限于此。
因此,根据本发明实施例的传输上行数据的方法,通过第一终端设备和第二终端设备采用发射分集传输机制传输上行数据,该第二终端设备向该第一终端设备发送第二上行数据以及该第二传输资源的信息,以便于该第一终端设备对待传输的第一上行数据和该接收到的该第二终端设备发送的第二上行数据进行联合编码处理,以获得联合编码数据,并且采用的不同的传输资源分别向该网络设备发送该第一上行数据和该联合编码数据,而该第二终端设备向该网络设备发送该第二该上行数据,能够在获得发射分集增益的同时降低传输时延。
图6示出了本发明另一实施例提供的传输上行数据的方法500。该方法500可以由网络设备执行。
S510,接收第一终端设备采用第一传输资源发送的第一上行数据和第二终端设备采用第三传输资源发送的第二上行数据。
可选地,该第一终端设备和该第二终端设备可以以免授权方式或传统授权方式分别向该网络设备发送该第一上行数据和该第二上行数据,本发明实施例对此不做限定。
S520,获取该第一终端设备采用不同于该第一传输资源的第二传输资源发送的联合编码数据,其中,该联合编码数据是通过对该第一上行数据与该第二上行数据进行联合编码处理得到的。
该第一传输资源可以与该第三传输资源为相同或不同的传输资源。该第二传输资源不同于第一传输资源,可选地,该第二传输资源也可以为不同于该第三传输资源的传输资源,本发明实施例对此不做限定。
S530,根据获取到的该联合编码数据以及该第一上行数据和该第二上行数据,得到该第一上行数据和该第二上行数据的译码结果。
该网络设备可以根据接收到的联合编码数据,获得该联合编码数据中包
括的与该第一上行数据对应的部分和与该第二上行数据对应的部分;将该与该第一上行数据对应的部分和接收到的该第一上行数据进行合并处理,以获得针对该第一上行数据的分集增益;并且将该与该第二上行数据对应的部分和接收到的该第二上行数据进行合并处理,以获得针对该第二上行数据的分集增益,但本发明实施例不限于此。
因此,根据本发明实施例的传输上行数据的方法,网络设备接收第一终端设备和第二终端设备采用发射分集传输机制传输的上行数据,具体地,该网络设备接收该第一终端设备和该第二终端设备分别发送的第一上行数据和该第二上行数据,获取通过对该第一上行数据和该第二上行数据进行联合编码处理得到的联合编码数据,并且根据该联合编码数据对接收到的该第一上行数据和该第二上行数据进行译码处理,能够在获得发射分集增益的同时降低传输时延。
作为一个可选实施例,在S510之前,该方法500还包括:
确定该第一终端设备和第二终端设备进行发射分集传输;
向该第一终端设备和该第二终端设备中的至少一个终端设备发送第一指示信息,该第一指示信息用于指示该第一终端设备和该第二终端设备进行发射分集传输。
该网络设备可以主动或被动(例如根据该第一终端设备和/或该第二终端设备的请求)确定该第一终端设备和该第二终端设备进行发射分集传输。可选地,该确定该第一终端设备和第二终端设备进行发射分集传输,包括:
根据该第一终端设备和该第二终端设备的传输可靠性信息,确定该第一终端设备和该第二终端设备进行发射分集传输,该传输可靠性信息包括下列信息中的至少一项:发射分集传输能力、当前上行信道质量信息和历史误码率信息。
作为另一个可选实施例,该第一终端设备和该第二终端设备可以通过协商确定进行发射分集传输,相应地,在S510之前,该方法500还包括:
接收该第一终端设备和该第二终端设备中的至少一个终端设备发送的第二指示信息,该第二指示信息用于指示该第一终端设备和该第二终端设备进行发射分集传输。
该网络设备根据该第二指示信息确定该第一终端设备和该第二终端设备进行发射分集传输。可选地,作为另一个可选实施例,该第二指示信息还
可以进一步用于指示该第一传输资源、该第二传输资源和该第三传输资源中的至少一种,相应地,该网络设备可以根据该第二指示信息的指示,确定该第一传输资源、该第二传输资源和该第三传输资源中的至少一种;或者,该网络设备也可以根据预先定义的或该网络设备配置的映射规则,确定该第一上行数据、该第二上行数据和该联合编码数据分别对应的第一传输资源、该第二传输资源和该第三传输资源,本发明实施例对此不做限定。
作为另一个可选实施例,该第一终端设备可以采用该第二终端设备的标识对为该第一上行数据添加的CRC码进行加扰,和/或该第二终端设备采用该第一终端设备的标识对为该第二上行数据添加的CRC码进行加扰,来隐性地指示该第一上行数据是和该第二上行数据以分集发射传输方式发送的,即该第一终端设备和该第二终端设备进行分集发射传输。此时,在S520之前,该方法500还包括:
确定分集发射传输的判断条件得到满足,该分集发射传输的判断条件包括下列中的至少一种:该第一上行数据对应的循环冗余校验CRC码是采用该第二终端设备的标识进行加扰的,以及该第二上行数据对应的CRC码是采用该第一终端设备的标识进行加扰的;
根据该分集发射传输的判断条件得到满足,确定该第一上行数据和该第二上行数据是以分集发射传输方式发送的。
该第一终端设备和/或该第二终端设备还可以通过其它隐性或显性的方式指示该网络设备该第一终端设备和该第二终端设备进行分集发射传输,本发明实施例对此不做限定。
作为一个可选实施例,S520,获取该第一终端设备采用不同于该第一传输资源的第二传输资源发送的联合编码数据,包括:
获取该第一传输资源的信息和该第三传输资源的信息;
根据该第一传输资源的信息和该第三传输资源的信息,确定该第二传输资源;
获取该第二传输资源上传输的该联合编码数据。
可选地,该网络设备可以进行盲检测,并根据盲检测到的第一上行数据和该第二上行数据,确定该第一传输资源和该第三传输资源。然后,该网络设备可以采用与终端设备侧相同的规则,根据该第一传输资源和该第三传输资源,确定该第二传输资源,并且检测采用该第二传输资源传输的联合编码
数据,例如,该网络设备可以根据该第一传输资源包括的码资源以及该第三传输资源包括的码资源,确定该第二传输资源;或者该网络设备可以从检测到的上行数据中提取采用该第二传输资源传输的联合编码数据,本发明实施例不限于此。
可选地,该第一终端设备和该第二终端设备可以采用免授权传输机制进行发射分集传输。可选地,该第一传输资源具体为第一CTU,该第二传输资源具体为第二CTU,该第三传输资源具体为不同于该第一CTU和该第二CTU的第三CTU,并且该第三CTU位于与第一CTU和该第二CTU不同的竞争接入区域。
作为另一个可选实施例,若该第二传输资源具体为第二CTU,该网络设备可以根据该第一CTU包括的码资源以及该第三CTU包括的码资源,确定该第二CTU。可选地,该第二CTU的索引IndxCTU由下式确定:
IndxCTU=(Sig1+Sig2)mod NCTU; (4)
其中,Sig1为该第一传输资源包括的码资源的索引,Sig2为该第三传输资源包括的码资源的索引,NCTU为当前子帧中包括的CTU的数目。
此时,该当前子帧可以指该第一终端设备发送该联合编码数据所占用的子帧,其中,该联合编码数据与该第一上行数据和该第二上行数据可以占用相同的子帧,也可以分别占用不同的子帧,本发明实施例对此不做限定。可选地,该第二CTU还可以根据其他函数形式或其它传输资源信息确定,本发明实施例不限于此。
作为一个可选实施例,S530,根据获取到的该联合编码数据以及该第一上行数据和该第二上行数据,得到该第一上行数据和该第二上行数据的译码结果,包括:
对接收到的该第一上行数据进行解调处理,获得该第一上行数据对应的初始对数似然比;
对接收到的该第二上行数据进行解调处理,获得该第二上行数据对应的初始对数似然比;
对获取到的该联合编码数据进行解调处理,获得该联合编码数据对应的对数似然比;
根据该联合编码数据对应的对数似然比、该第一上行数据对应的初始对数似然比和该第二上行数据对应的初始对数似然比,确定该第一上行数据对
应的最终对数似然比和该第二上行数据对应的最终对数似然比;
对该第一上行数据对应的最终对数似然比进行译码处理,以获得该第一上行数据对应的译码结果,并且对该第二上行数据对应的最终对数似然比进行译码处理,以获得该第二上行数据对应的译码结果。
具体地,该网络设备可以对接收到的该第一上行数据m1进行解调处理,以获得m1的初始对数似然比LLR1,对接收到的该第二上行数据m2进行解调处理,以获得m2的初始对数似然比LLR2,并且对接收到的联合编码数据m3进行解调处理,以获得m3的初始对数似然比LLR3。由于该m3是通过对对m1和m2进行编码处理的到的,所以可以根据m3的初始对数似然比LLR3,对m1的初始对数似然比LLR1进行调整,以获得m1的最终对数似然比LLR'1,并且可以根据m3的初始对数似然比LLR3,对m2的初始对数似然比LLR2进行调整,以获得m2的最终对数似然比LLR'2。最后,该网络设备可以分别对该LLR'1和LLR'2进行译码,以获得该第一上行数据和该第二上行数据的译码结果,但本发明实施例不限于此。
作为另一个可选实施例,该根据该联合编码数据对应的对数似然比、该第一上行数据对应的初始对数似然比和该第二上行数据对应的初始对数似然比,确定该第一上行数据对应的最终对数似然比和该第二上行数据对应的最终对数似然比,包括:
根据该联合编码数据对应的对数似然比、该第一上行数据对应的初始对数似然比和该第二上行数据对应的初始对数似然比,确定该第一上行数据的先验概率信息和该第二上行数据的先验概率信息;
根据该第一上行数据的先验概率信息和该第一上行数据对应的初始对数似然比,确定该第一上行数据对应的最终对数似然比;
根据该第二上行数据的先验概率信息和该第二上行数据对应的初始对数似然比,确定该第二上行数据对应的最终对数似然比。
具体地,该网络设备可以根据该第一上行数据m1的先验概率信息,确定m1的调整对数似然比LLR12,然后根据m1的初始对数似然比LLR1和调整对数似然比LLR12,确定m1的最终对数似然比LLR'1,例如,LLR'1=LLR1+LLR12;类似地,该网络设备可以根据该第二上行数据m2的先验概率信息,确定m2的调整对数似然比LLR22,然后根据m2的初始对数似然比LLR2和调整对数似然比LLR22,确定m2的最终对数似然比LLR'2,例如,LLR'2=LLR2
+LLR22,但本发明实施例不限于此。
该网络设备可以通过多种计算方式确定该第一上行数据和该第二上行数据的先验概率信息。作为一个可选例子,该第三数据是通过对该第一上行数据和该第二上行数据进行网络编码获得的,则由对数似然比的定义式(5)可知,第一上行数据m1为0的先验概率和m1为1的先验概率分别由式(6)和式(7)表示。
其中,Prch(mi=0)表示mi为0的概率,Prch(mi=1)表示mi为1的概率。
结合式(6)和式(7),可知m1的调整对数似然比由式(8)表示。
因此,根据本发明实施例的传输上行数据的方法,网络设备接收第一终端设备和第二终端设备采用发射分集传输机制传输的上行数据,具体地,该网络设备接收该第一终端设备和该第二终端设备分别发送的第一上行数据和该第二上行数据,获取通过对该第一上行数据和该第二上行数据进行联合编码处理得到的联合编码数据,并且根据该联合编码数据对接收到的该第一上行数据和该第二上行数据进行译码处理,能够在获得发射分集增益的同时降低传输时延。
图7示出了本发明另一实施例提供的传输上行数据的方法600。该方法600可以由网络设备执行。如图7所示,该方法600包括:
S610,确定第一终端设备和第二终端设备进行发射分集传输;
S620,向该第一终端设备和该第二终端设备中的至少一个终端设备发送第一指示信息,其中,该第一指示信息用于指示该第一终端设备和该第二终端设备进行发射分集传输。
可选地,S610,确定第一终端设备和第二终端设备进行发射分集传输,包括:
根据该第一终端设备和该第二终端设备的传输可靠性信息,确定该第一终端设备和该第二终端设备进行发射分集传输,该传输可靠性信息包括下列信息中的至少一项:发射分集传输能力信息、当前上行信道质量信息和历史误码率信息。
可选地,该第一终端设备和/或第二终端设备在接入该网络设备之后,可以上报自身的能力信息(包括是否具有发射分集传输的能力),还可以进一步上报自己是否有进行发射分集传输的意愿,但本发明实施例不限于此。
因此,根据本发明实施例的传输上行数据的方法,网络设备确定第一终端设备和第二终端设备采用发射分集传输机制传输上行数据,并且发送第一指示信息以指示该第一终端设备和该第二终端设备,使得该第一终端设备和该第二终端设备能够根据该第一指示信息进行发射分集传输,能够在获得发射分集增益的同时降低传输时延。
应理解,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本发明实施例的实施过程构成任何限定。
上文中结合图1至图7,详细描述了根据本发明实施例的传输上行数据
的方法,下面将结合图8至图15,描述根据本发明实施例的传输上行数据的装置。
图8示例性地示出了本发明实施例提供的传输上行数据的装置700,该装置700包括:
获取单元710,用于获取第二终端设备的第二上行数据;
编码单元720,用于对第一终端设备的第一上行数据和该获取单元720获取的该第二上行数据进行联合编码处理,得到联合编码数据;
发送单元730,用于采用第一传输资源向网络设备发送该第一上行数据,并且采用不同于该第一传输资源的第二传输资源向该网络设备发送该编码单元730得到的该联合编码数据。
作为一个可选实施例,该装置700还包括:
第一接收单元,用于在该获取单元710获取该第二终端设备的第二上行数据之前,接收该网络设备发送的第一指示信息,该第一指示信息用于指示该第一终端设备与该第二终端设备进行发射分集传输;
第一确定单元,用于根据该第一接收单元接收到的该第一指示信息,确定与该第二终端设备进行发射分集传输。
此时,该装置在确定与该第二终端设备进行发射分集传输之后,可以获取该第二终端设备的第二上行数据,或者也可以在确定与该第二终端设备进行发射分集传输的同时,获取该第二上行数据,本发明实施例不限于此。
可选地,该第一指示信息还可以进一步用于指示由该第一终端设备发送联合编码数据,即该第一终端设备协助发送该第二终端设备的第二上行数据,但本发明实施例不限于此。
可选地,该第一指示信息包括该第二终端设备所属终端设备分组的组标识信息以及该第二终端设备在该终端设备分组内的编号信息。
作为另一个可选实施例,该发送单元730还用于在该获取单元710获取该第二终端设备的第二上行数据之前,向包括该第二终端设备在内的至少一个终端设备发送发射分集传输请求,该发射分集传输请求用于请求与该第一终端设备进行发射分集传输;
相应地,该装置700还包括:
第二接收单元,用于接收该第二终端设备根据该发送单元730发送的该发射分集传输请求发送的发射分集传输响应;
第二确定单元,用于根据该第二接收单元接收到的该发射分集传输响应,确定与该第二终端设备进行发射分集传输。
可选地,该发送单元730还用于向该网络设备发送第二指示信息,该第二指示信息用于指示该第一终端设备与该第二终端设备进行发射分集传输。
该第二指示信息可以显性或隐性地指示该第一终端设备和该第二终端设备进行发射分集传输。作为一个可选实施例,该装置700还包括:
校验码添加单元,用于在该发送单元730采用第一传输资源向网络设备发送该第一上行数据之前,为该第一上行数据添加CRC码,其中,该CRC码采用该第二终端设备的标识进行加扰;
相应地,该发送单元730具体用于采用该第一传输资源向该网络设备发送该校验码添加单元添加了该CRC码的该第一上行数据。
该第一终端设备也可以将该联合编码数据对应的CRC码采用第二终端设备的标识进行加扰,本发明实施例对此不做限定。
作为一个可选实施例,该获取单元710具体用于通过D2D传输接收该第二终端设备发送的该第二上行数据。
作为另一个可选实施例,该发送单元730具体用于采用免授权传输方式向该网络设备发送该第一上行数据和该联合编码数据。
可选地,该第一传输资源具体为第一CTU,该第二传输资源具体为第二CTU,并且该第一CTU和该第二CTU位于不同的竞争接入区域。
作为另一个可选实施例,该获取单元710还用于在该发送单元730采用不同于该第一传输资源的第二传输资源向该网络设备发送该联合编码数据之前,获取该第二终端设备发送该第二上行数据时采用的第三传输资源的信息;
相应地,该装置还包括:第三确定单元,用于根据该第一传输资源和该获取单元710获取的该第三传输资源的信息,确定发送该联合编码数据所采用的该第二传输资源;
该发送单元730具体用于采用该第三确定单元确定的该第二传输资源,向该网络设备发送该联合编码数据。
作为另一个可选实施例,若该第二传输资源具体为第二CTU,该第二CTU的索引号IndxCTU由下式确定:
IndxCTU=(Sig1+Sig2)mod NCTU (9)
其中,Sig1为该第一传输资源包括的码资源的索引,Sig2为该第三传输资源包括的码资源的索引,NCTU为当前子帧中包括的CTU的数目。
可选地,该码资源包括下列中的一种:稀疏码多址接入码本、低密度签名序列和码分多址码。
根据本发明实施例的传输上行数据的装置700可对应于根据本发明实施例的传输上行数据的方法中的第一终端设备,并且传输上行数据的装置700中的各个模块的上述和其它操作和/或功能分别为了实现图3中的各个方法的相应流程,为了简洁,在此不再赘述。
因此,根据本发明实施例的传输上行数据的装置,通过第一终端设备和第二终端设备采用发射分集传输机制传输上行数据,该第一终端设备获取第二终端设备的第二上行数据,对待发送的第一上行数据和该第二上行数据进行联合编码处理,以获得联合编码数据,并且采用的不同的传输资源分别向该网络设备发送该第一上行数据和该联合编码数据,能够在获得发射分集增益的同时降低传输时延。
图9示出了本发明实施例提供的另一传输上行数据的装置800,该装置800包括:
确定单元810,用于确定待发送的上行数据以及该上行数据的传输资源。
发送单元820,用于向第一终端设备发送该确定单元810确定的该上行数据和该传输资源的信息,以及采用该确定单元810确定的该传输资源向网络设备发送该上行数据。
可选地,该发送单元820可以以免授权传输方式向该网络设备发送该上行数据。
作为一个可选实施例,该装置800还包括:第一接收单元,用于在该发送单元820向该第一终端设备发送该上行数据和该传输资源的信息之前,接收该网络设备发送的第一指示信息,该第一指示信息用于指示该第一终端设备与第二终端设备进行发射分集传输;
相应地,该确定单元810还用于根据该第一接收单元接收的该第一指示信息,确定与该第一终端设备进行发射分集传输。
可选地,该第一指示信息包括该第一终端设备所属终端设备分组的组标识信息以及该第一终端设备在该终端设备分组内的编号信息。
作为另一个可选实施例,该装置800还包括:第二接收单元,用于在该
发送单元820向该第一终端设备发送该上行数据和该传输资源的信息之前,接收该第一终端设备发送的发射分集传输请求,该发射分集传输请求用于请求与该第一终端设备进行发射分集传输;
相应地,该确定单元810还用于根据该第二接收单元接收的该发射分集传输请求,确定与该第一终端设备进行发射分集传输;
该发送单元820还用于向该第一终端设备发送发射分集传输响应。
或者,也可以由该第二终端设备发起该分集发射传输,但本发明实施例不限于此。
可选地,该发送单元820还用于向该网络设备发送第二指示信息,该第二指示信息用于指示该第一终端设备与该第二终端设备进行发射分集传输。
作为一个可选实施例,该装置800还包括:校验码添加单元,用于在该发送单元820采用该传输资源向网络设备发送该上行数据之前,为该上行数据添加循环冗余校验CRC码,其中,该CRC码采用该第一终端设备的标识进行加扰;
相应地,该发送单元820具体用于采用该传输资源向网络设备发送该校验码添加单元添加了该CRC码的该上行数据。
这样,可以隐性地指示该上行数据是与该第一终端设备的上行数据以分集发射方式传输的,但本发明实施例不限于此。
作为一个可选实施例,该发送单元820具体用于通过D2D传输向该第一终端设备发送该上行数据和该传输资源的信息。
可选地,传输资源的信息可以包括下列信息中的至少一种:CTU的索引、码资源索引、该第二终端设备的标识和导频索引。
作为一个可选实施例,该传输资源的信息可以包括码资源的信息,该码资源包括下列中的一种:稀疏码多址接入码本、低密度签名序列和码分多址码。
根据本发明实施例的传输上行数据的装置800可对应于根据本发明实施例的传输上行数据的方法中的第二终端设备,并且传输上行数据的装置800中的各个模块的上述和其它操作和/或功能分别为了实现图5中的各个方法的相应流程,为了简洁,在此不再赘述。
因此,根据本发明实施例的传输上行数据的装置,通过第一终端设备和第二终端设备采用发射分集传输机制传输上行数据,该第二终端设备向该第
一终端设备发送待传输的上行数据以及该上行数据的传输资源的信息,以便于该第一终端设备对待传输的第一上行数据和该接收到的该第二终端设备发送的上行数据进行联合编码处理,以获得联合编码数据,并且采用的不同的传输资源分别向该网络设备发送该第一上行数据和该联合编码数据,而该第二终端设备向该网络设备发送该该上行数据,能够在获得发射分集增益的同时降低传输时延。
图10示出了本发明实施例提供的另一传输上行数据的装置900,该装置900包括:
接收单元910,用于接收第一终端设备采用第一传输资源发送的第一上行数据和第二终端设备采用第三传输资源发送的第二上行数据;
获取单元920,用于获取该第一终端设备采用不同于该第一传输资源的第二传输资源发送的联合编码数据,该联合编码数据是通过对该接收单元910接收的该第一上行数据与该第二上行数据进行联合编码处理得到的;
译码单元930,用于根据该获取单元920获取到的该联合编码数据以及接收单元910接收到的该第一上行数据和该第二上行数据,得到该第一上行数据和该第二上行数据的译码结果。
作为一个可选实施例,该装置900还包括:
第一确定单元,用于在该接收单元910接收第一终端设备采用第一传输资源发送的第一上行数据和第二终端设备采用第三传输资源发送的第二上行数据之前,确定该第一终端设备和第二终端设备进行发射分集传输;
发送单元,用于向该第一终端设备和该第二终端设备中的至少一个终端设备发送第一指示信息,该第一指示信息用于指示该第一确定单元确定的该第一终端设备和该第二终端设备进行发射分集传输。
可选地,该第一确定单元具体用于根据该第一终端设备和该第二终端设备的传输可靠性信息,确定该第一终端设备和该第二终端设备进行发射分集传输,该传输可靠性信息包括下列信息中的至少一项:发射分集传输能力信息、当前上行信道质量信息和历史误码率信息。
作为另一个可选实施例,该接收单元910还用于在该接收第一终端设备采用第一传输资源发送的第一上行数据和第二终端设备采用第三传输资源发送的第二上行数据之前,接收该第一终端设备和该第二终端设备中的至少一个终端设备发送的第二指示信息,该第二指示信息用于指示该第一终端设
备和该第二终端设备进行发射分集传输。
这样,该装置可以根据该第二指示信息确定该第一上行数据和该第二上行数据是以发射分集方式发送的,并且获取与该第一上行数据和该第二上行数据对应的联合编码数据。
可选地,该接收单元910具体用于接收该第一终端设备和该第二终端设备采用免授权传输方式分别发送的该第一上行数据和该第二上行数据。
作为一个可选实施例,该第一传输资源具体为第一CTU,该第二传输资源具体为第二CTU,该第三传输资源具体为不同于该第一CTU和该第二CTU的第三CTU,并且该第三CTU位于与第一CTU和该第二CTU不同的竞争接入区域。
作为一个可选实施例,该译码单元930具体用于:
对接收到的该第一上行数据进行解调处理,获得该第一上行数据对应的初始对数似然比;
对接收到的该第二上行数据进行解调处理,获得该第二上行数据对应的初始对数似然比;
对获取到的该联合编码数据进行解调处理,获得该联合编码数据对应的对数似然比;
根据该联合编码数据对应的对数似然比、该第一上行数据对应的初始对数似然比和该第二上行数据对应的初始对数似然比,确定该第一上行数据对应的最终对数似然比和该第二上行数据对应的最终对数似然比;
对该第一上行数据对应的最终对数似然比进行译码处理,以获得该第一上行数据对应的译码结果,并且对该第二上行数据对应的最终对数似然比进行译码处理,以获得该第二上行数据对应的译码结果。
可选地,该译码单元930具体用于:
根据该联合编码数据对应的对数似然比、该第一上行数据对应的初始对数似然比和该第二上行数据对应的初始对数似然比,确定该第一上行数据的先验概率信息和该第二上行数据的先验概率信息;
根据该第一上行数据的先验概率信息和该第一上行数据对应的初始对数似然比,确定该第一上行数据对应的最终对数似然比;
根据该第二上行数据的先验概率信息和该第二上行数据对应的初始对数似然比,确定该第二上行数据对应的最终对数似然比。
作为另一个可选实施例,该获取单元920具体用于:
获取该第一传输资源的信息和该第三传输资源的信息;
根据该第一传输资源的信息和该第三传输资源的信息,确定该第二传输资源;
获取该第二传输资源上传输的该联合编码数据。
作为另一个可选实施例,若该第二传输资源具体为第二CTU,该第二CTU的索引IndxCTU由下式确定:
IndxCTU=(Sig1+Sig2)mod NCTU (10)
其中,Sig1为该第一传输资源包括的码资源的索引,Sig2为该第三传输资源包括的码资源的索引,NCTU为当前子帧中包括的CTU的数目。
根据本发明实施例的传输上行数据的装置900可对应于根据本发明实施例的传输上行数据的方法中的网络设备,并且传输上行数据的装置900中的各个模块的上述和其它操作和/或功能分别为了实现图6中的各个方法的相应流程,为了简洁,在此不再赘述。
因此,根据本发明实施例的传输上行数据的装置,网络设备接收第一终端设备和第二终端设备采用发射分集传输机制传输的上行数据,具体地,该网络设备接收该第一终端设备和该第二终端设备分别发送的第一上行数据和该第二上行数据,获取通过对该第一上行数据和该第二上行数据进行联合编码处理得到的联合编码数据,并且根据该联合编码数据对接收到的该第一上行数据和该第二上行数据进行译码处理,能够在获得发射分集增益的同时降低传输时延。
图11示出了本发明实施例提供的另一传输上行数据的装置1000,该装置1000包括:
确定单元1010,用于确定第一终端设备和第二终端设备进行发射分集传输;
发送单元1020,用于向该第一终端设备和该第二终端设备中的至少一个终端设备发送第一指示信息,该第一指示信息用于指示该确定单元1010确定的该第一终端设备和该第二终端设备进行发射分集传输。
可选地,该确定单元1010具体用于根据该第一终端设备和该第二终端设备的传输可靠性信息,确定该第一终端设备和该第二终端设备进行发射分集传输,该传输可靠性信息包括下列信息中的至少一项:发射分集传输能力
信息、当前上行信道质量信息和历史误码率信息。
根据本发明实施例的传输上行数据的装置1000可对应于根据本发明实施例的传输上行数据的方法中的网络设备,并且传输上行数据的装置1000中的各个模块的上述和其它操作和/或功能分别为了实现图7中的各个方法的相应流程,为了简洁,在此不再赘述。
因此,根据本发明实施例的传输上行数据的方法,网络设备确定第一终端设备和第二终端设备采用发射分集传输机制传输上行数据,并且发送第一指示信息以指示该第一终端设备和该第二终端设备,使得该第一终端设备和该第二终端设备能够根据该第一指示信息进行发射分集传输,能够在获得发射分集增益的同时降低传输时延。
图12示例性地示出了本发明实施例提供的传输上行数据的装置1100,该装置1100包括:
处理器1110,用于获取第二终端设备的第二上行数据,以及对第一终端设备的第一上行数据和获取到的该第二上行数据进行联合编码处理,得到联合编码数据;
发送器1120,用于采用第一传输资源向网络设备发送该第一上行数据,并且采用不同于该第一传输资源的第二传输资源向该网络设备发送该处理器1110得到的该联合编码数据。
作为一个可选实施例,该装置1100还包括:接收器,用于在该处理器1110获取该第二终端设备的第二上行数据之前,接收该网络设备发送的第一指示信息,该第一指示信息用于指示该第一终端设备与该第二终端设备进行发射分集传输;
相应地,该处理器1110还用于根据该接收器接收到的该第一指示信息,确定与该第二终端设备进行发射分集传输。
此时,该装置在确定与该第二终端设备进行发射分集传输之后,可以获取该第二终端设备的第二上行数据,或者也可以在确定与该第二终端设备进行发射分集传输的同时,获取该第二上行数据,本发明实施例不限于此。
可选地,该第一指示信息还可以进一步用于指示由该第一终端设备发送联合编码数据,即该第一终端设备协助发送该第二终端设备的第二上行数据,但本发明实施例不限于此。
可选地,该第一指示信息包括该第二终端设备所属终端设备分组的组标
识信息以及该第二终端设备在该终端设备分组内的编号信息。
作为另一个可选实施例,该发送器1120还用于在该处理器1110获取该第二终端设备的第二上行数据之前,向包括该第二终端设备在内的至少一个终端设备发送发射分集传输请求,该发射分集传输请求用于请求与该第一终端设备进行发射分集传输;
此时,该装置1100还包括:接收器,用于接收该第二终端设备根据该发送器1120发送的该发射分集传输请求发送的发射分集传输响应;
相应地,该处理器1110还用于根据该接收器接收到的该发射分集传输响应,确定与该第二终端设备进行发射分集传输。
可选地,该发送器1120还用于向该网络设备发送第二指示信息,该第二指示信息用于指示该第一终端设备与该第二终端设备进行发射分集传输。
该第二指示信息可以显性或隐性地指示该第一终端设备和该第二终端设备进行发射分集传输。作为一个可选实施例,该处理器1110还用于在该发送器1120采用第一传输资源向网络设备发送该第一上行数据之前,为该第一上行数据添加CRC码,其中,该CRC码采用该第二终端设备的标识进行加扰;
相应地,该发送器1120具体用于采用该第一传输资源向该网络设备发送该处理器1110添加了该CRC码的该第一上行数据。
该第一终端设备也可以将该联合编码数据对应的CRC码采用第二终端设备的标识进行加扰,本发明实施例对此不做限定。
作为一个可选实施例,该处理器1110具体用于通过D2D传输接收该第二终端设备发送的该第二上行数据。
作为另一个可选实施例,该发送器1120具体用于采用免授权传输方式向该网络设备发送该第一上行数据和该联合编码数据。
可选地,该第一传输资源具体为第一CTU,该第二传输资源具体为第二CTU,并且该第一CTU和该第二CTU位于不同的竞争接入区域。
作为另一个可选实施例,该处理器1110还用于在该发送器1120采用不同于该第一传输资源的第二传输资源向该网络设备发送该联合编码数据之前,获取该第二终端设备发送该第二上行数据时采用的第三传输资源的信息,以及根据获取的该第三传输资源的信息和该第一传输资源,确定发送该联合编码数据所采用的该第二传输资源。
作为另一个可选实施例,若该第二传输资源具体为第二CTU,该第二CTU的索引号IndxCTU由下式确定:
IndxCTU=(Sig1+Sig2)mod NCTU (11)
其中,Sig1为该第一传输资源包括的码资源的索引,Sig2为该第三传输资源包括的码资源的索引,NCTU为当前子帧中包括的CTU的数目。
可选地,该码资源包括下列中的一种:稀疏码多址接入码本、低密度签名序列和码分多址码。
根据本发明实施例的传输上行数据的装置1100可对应于根据本发明实施例的传输上行数据的方法中的第一终端设备,并且传输上行数据的装置1100中的各个模块的上述和其它操作和/或功能分别为了实现图3中的各个方法的相应流程,为了简洁,在此不再赘述。
因此,根据本发明实施例的传输上行数据的装置,通过第一终端设备和第二终端设备采用发射分集传输机制传输上行数据,该第一终端设备获取第二终端设备的第二上行数据,对待发送的第一上行数据和该第二上行数据进行联合编码处理,以获得联合编码数据,并且采用的不同的传输资源分别向该网络设备发送该第一上行数据和该联合编码数据,能够在获得发射分集增益的同时降低传输时延。
图13示出了本发明实施例提供的另一传输上行数据的装置1200,该装置1200包括:
处理器1210,用于确定与第一终端设备进行发射分集传输;
发送器1220,用于向第一终端设备发送该处理器1210确定的该上行数据和该传输资源的信息,以及采用该处理器1210确定的该传输资源向网络设备发送该上行数据。
可选地,该发送器1220可以以免授权传输方式向该网络设备发送该上行数据。
作为一个可选实施例,该装置1200还包括:接收器,用于在该发送器1220向该第一终端设备发送该上行数据和该传输资源的信息之前,接收该网络设备发送的第一指示信息,该第一指示信息用于指示该第一终端设备与第二终端设备进行发射分集传输;
相应地,该处理器1210还用于根据该接收器接收的该第一指示信息,确定与该第一终端设备进行发射分集传输。
可选地,该第一指示信息包括该第一终端设备所属终端设备分组的组标识信息以及该第一终端设备在该终端设备分组内的编号信息。
作为另一个可选实施例,该装置1200还包括:接收器,用于在该发送器1220向该第一终端设备发送该上行数据和该传输资源的信息之前,接收该第一终端设备发送的发射分集传输请求,该发射分集传输请求用于请求与该第一终端设备进行发射分集传输;
相应地,该处理器1210还用于根据该接收器接收的该发射分集传输请求,确定与该第一终端设备进行发射分集传输;
该发送器1220还用于向该第一终端设备发送发射分集传输响应。
或者,也可以由该第二终端设备发起该分集发射传输,但本发明实施例不限于此。
可选地,该发送器1220还用于向该网络设备发送第二指示信息,该第二指示信息用于指示该第一终端设备与该第二终端设备进行发射分集传输。
作为一个可选实施例,该处理器1210还用于在该发送器1220采用该传输资源向网络设备发送该上行数据之前,为该上行数据添加CRC码,其中,该CRC码采用该第一终端设备的标识进行加扰;
相应地,该发送器1220具体用于采用该传输资源向网络设备发送该处理器1210添加了该CRC码的该上行数据。
这样,可以隐性地指示该上行数据是与该第一终端设备的上行数据以分集发射方式传输的,但本发明实施例不限于此。
作为一个可选实施例,该发送器1220具体用于通过D2D传输向该第一终端设备发送该上行数据和该传输资源的信息。
可选地,传输资源的信息可以包括下列信息中的至少一种:CTU的索引、码资源索引、该第二终端设备的标识和导频索引。
作为一个可选实施例,该传输资源的信息可以包括码资源的信息,该码资源包括下列中的一种:稀疏码多址接入码本、低密度签名序列和码分多址码。
根据本发明实施例的传输上行数据的装置1200可对应于根据本发明实施例的传输上行数据的方法中的第二终端设备,并且传输上行数据的装置1200中的各个模块的上述和其它操作和/或功能分别为了实现图5中的各个方法的相应流程,为了简洁,在此不再赘述。
因此,根据本发明实施例的传输上行数据的装置,通过第一终端设备和第二终端设备采用发射分集传输机制传输上行数据,该第二终端设备向该第一终端设备发送第二上行数据以及传输资源的信息,以便于该第一终端设备对待传输的第一上行数据和该接收到的该第二终端设备发送的第二上行数据进行联合编码处理,以获得联合编码数据,并且采用的不同的传输资源分别向该网络设备发送该第一上行数据和该联合编码数据,而该第二终端设备向该网络设备发送该第二该上行数据,能够在获得发射分集增益的同时降低传输时延。
图14示出了本发明实施例提供的另一传输上行数据的装置1300,该装置1300包括:
接收器1310,用于接收第一终端设备采用第一传输资源发送的第一上行数据和第二终端设备采用第三传输资源发送的第二上行数据;
处理器1320,用于获取该第一终端设备采用不同于该第一传输资源的第二传输资源发送的联合编码数据,其中,该联合编码数据是通过对该接收器1310接收的该第一上行数据与该第二上行数据进行联合编码处理得到的,以及根据获取到的该联合编码数据以及该第一上行数据和该第二上行数据,得到该第一上行数据和该第二上行数据的译码结果。
作为一个可选实施例,该处理器1320还用于在该接收器1310接收第一终端设备采用第一传输资源发送的第一上行数据和第二终端设备采用第三传输资源发送的第二上行数据之前,确定该第一终端设备和第二终端设备进行发射分集传输;
相应地,该装置1300还包括:发送器,用于向该第一终端设备和该第二终端设备中的至少一个终端设备发送第一指示信息,该第一指示信息用于指示该处理器1320确定的该第一终端设备和该第二终端设备进行发射分集传输。
可选地,该处理器1320具体用于根据该第一终端设备和该第二终端设备的传输可靠性信息,确定该第一终端设备和该第二终端设备进行发射分集传输,该传输可靠性信息包括下列信息中的至少一项:发射分集传输能力信息、当前上行信道质量信息和历史误码率信息。
作为另一个可选实施例,该接收器1310还用于在该接收第一终端设备采用第一传输资源发送的第一上行数据和第二终端设备采用第三传输资源
发送的第二上行数据之前,接收该第一终端设备和该第二终端设备中的至少一个终端设备发送的第二指示信息,该第二指示信息用于指示该第一终端设备和该第二终端设备进行发射分集传输。
这样,该装置可以根据该第二指示信息确定该第一上行数据和该第二上行数据是以发射分集方式发送的,并且获取与该第一上行数据和该第二上行数据对应的联合编码数据。
作为一个可选实施例,该接收器1310具体用于接收该第一终端设备和该第二终端设备采用免授权传输方式分别发送的该第一上行数据和该第二上行数据。
可选地,该第一传输资源具体为第一CTU,该第二传输资源具体为第二CTU,该第三传输资源具体为不同于该第一CTU和该第二CTU的第三CTU,并且该第三CTU位于与第一CTU和该第二CTU不同的竞争接入区域。
作为一个可选实施例,处理器1320具体用于:
对接收到的该第一上行数据进行解调处理,获得该第一上行数据对应的初始对数似然比;
对接收到的该第二上行数据进行解调处理,获得该第二上行数据对应的初始对数似然比;
对获取到的该联合编码数据进行解调处理,获得该联合编码数据对应的对数似然比;
根据该联合编码数据对应的对数似然比、该第一上行数据对应的初始对数似然比和该第二上行数据对应的初始对数似然比,确定该第一上行数据对应的最终对数似然比和该第二上行数据对应的最终对数似然比;
对该第一上行数据对应的最终对数似然比进行译码处理,以获得该第一上行数据对应的译码结果,并且对该第二上行数据对应的最终对数似然比进行译码处理,以获得该第二上行数据对应的译码结果。
可选地,处理器1320具体用于:
根据该联合编码数据对应的对数似然比、该第一上行数据对应的初始对数似然比和该第二上行数据对应的初始对数似然比,确定该第一上行数据的先验概率信息和该第二上行数据的先验概率信息;
根据该第一上行数据的先验概率信息和该第一上行数据对应的初始对数似然比,确定该第一上行数据对应的最终对数似然比;
根据该第二上行数据的先验概率信息和该第二上行数据对应的初始对数似然比,确定该第二上行数据对应的最终对数似然比。
作为另一个可选实施例,该处理器1320具体用于:
获取该第一传输资源的信息和该第三传输资源的信息;
根据该第一传输资源的信息和该第三传输资源的信息,确定该第二传输资源;
获取该第二传输资源上传输的该联合编码数据。
作为另一个可选实施例,若该第二传输资源具体为第二CTU,该第二CTU的索引IndxCTU由下式确定:
IndxCTU=(Sig1+Sig2)mod NCTU (12)
其中,Sig1为该第一传输资源包括的码资源的索引,Sig2为该第三传输资源包括的码资源的索引,NCTU为当前子帧中包括的CTU的数目。
根据本发明实施例的传输上行数据的装置1300可对应于根据本发明实施例的传输上行数据的方法中的网络设备,并且传输上行数据的装置1300中的各个模块的上述和其它操作和/或功能分别为了实现图6中的各个方法的相应流程,为了简洁,在此不再赘述。
因此,根据本发明实施例的传输上行数据的装置,网络设备接收第一终端设备和第二终端设备采用发射分集传输机制传输的上行数据,具体地,该网络设备接收该第一终端设备和该第二终端设备分别发送的第一上行数据和该第二上行数据,获取通过对该第一上行数据和该第二上行数据进行联合编码处理得到的联合编码数据,并且根据该联合编码数据对接收到的该第一上行数据和该第二上行数据进行译码处理,能够在获得发射分集增益的同时降低传输时延。
图15示出了本发明实施例提供的另一传输上行数据的装置1400,该装置1400包括:
处理器1410,用于确定第一终端设备和第二终端设备进行发射分集传输;
发送器1420,用于向该第一终端设备和该第二终端设备中的至少一个终端设备发送第一指示信息,该第一指示信息用于指示该处理器1410确定的该第一终端设备和该第二终端设备进行发射分集传输。
可选地,该处理器1410具体用于根据该第一终端设备和该第二终端设
备的传输可靠性信息,确定该第一终端设备和该第二终端设备进行发射分集传输,该传输可靠性信息包括下列信息中的至少一项:发射分集传输能力信息、当前上行信道质量信息和历史误码率信息。
根据本发明实施例的传输上行数据的装置1400可对应于根据本发明实施例的传输上行数据的方法中的网络设备,并且传输上行数据的装置1400中的各个模块的上述和其它操作和/或功能分别为了实现图7中的各个方法的相应流程,为了简洁,在此不再赘述。
因此,根据本发明实施例的传输上行数据的方法,网络设备确定第一终端设备和第二终端设备采用发射分集传输机制传输上行数据,并且发送第一指示信息以指示该第一终端设备和该第二终端设备,使得该第一终端设备和该第二终端设备能够根据该第一指示信息进行发射分集传输,能够在获得发射分集增益的同时降低传输时延。
应理解,在本发明实施例中,上述装置中的处理器可以是中央处理单元(Central Processing Unit,CPU),该处理器还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
可选地,上述装置还可以包括存储器,该存储器可以包括只读存储器和随机存取存储器,并向处理器提供指令和数据。存储器的一部分还可以包括非易失性随机存取存储器。例如,存储器还可以存储设备类型的信息。
在实现过程中,上述方法的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。结合本发明实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成,或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的指令,结合其硬件完成上述方法的步骤。为避免重复,这里不再详细描述。
还应理解,本文对上述各个实施例的描述侧重于各个实施例的不同之处,而其余部分可以相互参考。以上某一实施例中的技术特征和描述,可以理解适用于其他实施例,比如方法实施例的技术特征可以适用于装置实施例或其他方法实施例,在其他实施例不再一一赘述。
还应理解,以上实施例中的发送单元或发射器可以指在空口上进行发送,可以不是空口上发送,而是发送给其他设备以便于其他设备在空口上发送。以上实施例中的接收单元或接收器可以指在空口上进行接收,可以不是空口上接收,而是从在空口上接收的其他设备进行接收。
应理解,在本发明实施例中,术语和/或仅仅是一种描述关联对象的关联关系,表示可以存在三种关系。例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符/,一般表示前后关联对象是一种或的关系。
本领域普通技术人员可以意识到,结合本文中所公开的实施例中描述的各方法步骤和单元,能够以电子硬件、计算机软件或者二者的结合来实现,为了清楚地说明硬件和软件的可互换性,在上述说明中已经按照功能一般性地描述了各实施例的步骤及组成。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。本领域普通技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本发明的范围。
所属领域的技术人员可以清楚地了解到,为了描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另外,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口、装置或单元的间接耦合或通信连接,也可以是电的,机械的或其它的形式连接。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本发明实施例方案的目的。
另外,在本发明各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以是两个或两个以上单元集成在
一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分,或者该技术方案的全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到各种等效的修改或替换,这些修改或替换都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以权利要求的保护范围为准。
Claims (67)
- 一种传输上行数据的方法,其特征在于,包括:第一终端设备获取第二终端设备的第二上行数据;所述第一终端设备对所述第一终端设备的第一上行数据和所述第二上行数据进行联合编码处理,得到联合编码数据;所述第一终端设备采用第一传输资源向网络设备发送所述第一上行数据,并且采用不同于所述第一传输资源的第二传输资源向所述网络设备发送所述联合编码数据。
- 根据权利要求1所述的方法,其特征在于,在所述获取所述第二终端设备的第二上行数据之前,所述方法还包括:接收所述网络设备发送的第一指示信息,所述第一指示信息用于指示所述第一终端设备与所述第二终端设备进行发射分集传输;根据所述第一指示信息,确定与所述第二终端设备进行发射分集传输。
- 根据权利要求2所述的方法,其特征在于,所述第一指示信息包括所述第二终端设备所属终端设备分组的组标识信息以及所述第二终端设备在所述终端设备分组内的编号信息。
- 根据权利要求1所述的方法,其特征在于,在所述获取所述第二终端设备的第二上行数据之前,所述方法还包括:向包括所述第二终端设备在内的至少一个终端设备发送发射分集传输请求,所述发射分集传输请求用于请求与所述第一终端设备进行发射分集传输;接收所述第二终端设备根据所述发射分集传输请求发送的发射分集传输响应;根据接收到的所述发射分集传输响应,确定与所述第二终端设备进行发射分集传输。
- 根据权利要求4所述的方法,其特征在于,所述方法还包括:向所述网络设备发送第二指示信息,所述第二指示信息用于指示所述第一终端设备与所述第二终端设备进行发射分集传输。
- 根据权利要求1至4中任一项所述的方法,其特征在于,在所述采用第一传输资源向网络设备发送所述第一上行数据之前,所述方法还包括:为所述第一上行数据添加循环冗余校验CRC码,其中,所述CRC码采 用所述第二终端设备的标识进行加扰;所述采用第一传输资源向网络设备发送所述第一上行数据,包括:采用所述第一传输资源向所述网络设备发送添加了所述CRC码的所述第一上行数据。
- 根据权利要求1至6中任一项所述的方法,其特征在于,所述获取第二终端设备的第二上行数据,包括:通过设备到设备D2D传输接收所述第二终端设备发送的所述第二上行数据。
- 根据权利要求1至7中任一项所述的方法,其特征在于,所述第一传输资源具体为第一竞争传输单元CTU,所述第二传输资源具体为第二CTU,并且所述第一CTU和所述第二CTU位于不同的竞争接入区域。
- 根据权利要求1至8中任一项所述的方法,其特征在于,在所述采用不同于所述第一传输资源的第二传输资源向所述网络设备发送所述联合编码数据之前,所述方法还包括:获取所述第二终端设备发送所述第二上行数据时采用的第三传输资源的信息;根据所述第三传输资源的信息和所述第一传输资源,确定发送所述联合编码数据所采用的所述第二传输资源。
- 根据权利要求9所述的方法,其特征在于,若所述第二传输资源具体为第二CTU,所述第二CTU的索引号IndxCTU由下式确定:IndxCTU=(Sig1+Sig2)mod NCTU;其中,Sig1为所述第一传输资源包括的码资源的索引,Sig2为所述第三传输资源包括的码资源的索引,NCTU为当前子帧中包括的CTU的数目。
- 根据权利要求10所述的方法,其特征在于,所述码资源包括下列中的一种:稀疏码多址接入码本、低密度签名序列和码分多址码。
- 根据权利要求1至11中任一项所述的方法,其特征在于,所述第一上行数据和所述联合编码数据是所述第一终端设备采用免授权传输方式向所述网络设备发送的。
- 一种传输上行数据的方法,其特征在于,包括:第二终端设备确定待发送的上行数据以及所述上行数据的传输资源;所述第二终端设备向所述第一终端设备发送所述上行数据和所述传输 资源的信息;所述第二终端设备采用所述传输资源向网络设备发送所述上行数据。
- 根据权利要求13所述的方法,其特征在于,在所述向所述第一终端设备发送所述上行数据和所述传输资源的信息之前,所述方法还包括:接收所述网络设备发送的第一指示信息,所述第一指示信息用于指示所述第一终端设备与所述第二终端设备进行发射分集传输;根据所述第一指示信息,确定与所述第一终端设备进行发射分集传输。
- 根据权利要求14所述的方法,其特征在于,所述第一指示信息包括所述第一终端设备所属终端设备分组的组标识信息以及所述第一终端设备在所述终端设备分组内的编号信息。
- 根据权利要求13所述的方法,其特征在于,在所述向所述第一终端设备发送所述上行数据和所述传输资源的信息之前,所述方法还包括:接收所述第一终端设备发送的发射分集传输请求,所述发射分集传输请求用于请求与所述第一终端设备进行发射分集传输;根据所述发射分集传输请求,确定与所述第一终端设备进行发射分集传输;所述方法还包括:向所述第一终端设备发送发射分集传输响应。
- 根据权利要求13至16中任一项所述的方法,其特征在于,在所述采用所述传输资源向网络设备发送所述上行数据之前,所述方法还包括:为所述上行数据添加循环冗余校验CRC码,其中,所述CRC码采用所述第一终端设备的标识进行加扰;所述采用所述传输资源信息对应的传输资源向网络设备发送所述上行数据,包括:采用所述传输资源信息对应的传输资源向网络设备发送添加了所述CRC码的所述上行数据。
- 根据权利要求13至17中任一项所述的方法,其特征在于,所述向所述第一终端设备发送上行数据和所述传输资源的信息,包括:通过设备到设备D2D传输向所述第一终端设备发送所述上行数据和所述传输资源的信息。
- 根据权利要求13至18中任一项所述的方法,其特征在于,所述传 输资源的信息包括码资源的信息,所述码资源包括下列中的一种:稀疏码多址接入码本、低密度签名序列和码分多址码。
- 根据权利要求13至19中任一项所述的方法,其特征在于,所述上行数据是所述第二终端设备采用免授权传输方式向所述网络设备发送的。
- 一种传输上行数据的方法,其特征在于,包括:网络设备接收第一终端设备采用第一传输资源发送的第一上行数据和第二终端设备采用第三传输资源发送的第二上行数据;所述网络设备获取所述第一终端设备采用不同于所述第一传输资源的第二传输资源发送的联合编码数据,其中,所述联合编码数据是通过对所述第一上行数据与所述第二上行数据进行联合编码处理得到的;所述网络设备根据获取到的所述联合编码数据以及所述第一上行数据和所述第二上行数据,得到所述第一上行数据的译码结果和所述第二上行数据的译码结果。
- 根据权利要求21所述的方法,其特征在于,在所述接收第一终端设备采用第一传输资源发送的第一上行数据和第二终端设备采用第三传输资源发送的第二上行数据之前,所述方法还包括:确定所述第一终端设备和所述第二终端设备进行发射分集传输;向所述第一终端设备和所述第二终端设备中的至少一个终端设备发送第一指示信息,所述第一指示信息用于指示所述第一终端设备和所述第二终端设备进行发射分集传输。
- 根据权利要求22所述的方法,其特征在于,所述确定所述第一终端设备和第二终端设备进行发射分集传输,包括:根据所述第一终端设备和所述第二终端设备的传输可靠性信息,确定所述第一终端设备和所述第二终端设备进行发射分集传输,所述传输可靠性信息包括下列信息中的至少一项:发射分集传输能力信息、当前上行信道质量信息和历史误码率信息。
- 根据权利要求21所述的方法,其特征在于,在所述接收第一终端设备采用第一传输资源发送的第一上行数据和第二终端设备采用第三传输资源发送的第二上行数据之前,所述方法还包括:接收所述第一终端设备和所述第二终端设备中的至少一个终端设备发送的第二指示信息,所述第二指示信息用于指示所述第一终端设备和所述第 二终端设备进行发射分集传输。
- 根据权利要求21至23中任一项所述的方法,其特征在于,在所述获取所述第一终端设备采用不同于所述第一传输资源的第二传输资源发送的联合编码数据之前,所述方法还包括:确定分集发射传输的判断条件得到满足,所述分集发射传输的判断条件包括下列中的至少一种:所述第一上行数据对应的循环冗余校验CRC码是采用所述第二终端设备的标识进行加扰的,以及所述第二上行数据对应的CRC码是采用所述第一终端设备的标识进行加扰的;根据所述分集发射传输的判断条件得到满足,确定所述第一上行数据和所述第二上行数据是以分集发射传输方式发送的。
- 根据权利要求21至25中任一项所述的方法,其特征在于,所述第一传输资源具体为第一竞争传输单元CTU,所述第二传输资源具体为第二CTU,所述第三传输资源具体为不同于所述第一CTU和所述第二CTU的第三CTU,并且所述第三CTU位于与第一CTU和所述第二CTU不同的竞争接入区域。
- 根据权利要求21至26中任一项所述的方法,其特征在于,所述根据获取到的所述联合编码数据以及所述第一上行数据和所述第二上行数据,得到所述第一上行数据的译码结果和所述第二上行数据的译码结果,包括:对接收到的所述第一上行数据进行解调处理,获得所述第一上行数据对应的初始对数似然比;对接收到的所述第二上行数据进行解调处理,获得所述第二上行数据对应的初始对数似然比;对获取到的所述联合编码数据进行解调处理,获得所述联合编码数据对应的对数似然比;根据所述联合编码数据对应的对数似然比、所述第一上行数据对应的初始对数似然比和所述第二上行数据对应的初始对数似然比,确定所述第一上行数据对应的最终对数似然比和所述第二上行数据对应的最终对数似然比;对所述第一上行数据对应的最终对数似然比进行译码处理,以获得所述第一上行数据对应的译码结果,并且对所述第二上行数据对应的最终对数似然比进行译码处理,以获得所述第二上行数据对应的译码结果。
- 根据权利要求27所述的方法,其特征在于,所述根据所述联合编 码数据对应的对数似然比、所述第一上行数据对应的初始对数似然比和所述第二上行数据对应的初始对数似然比,确定所述第一上行数据对应的最终对数似然比和所述第二上行数据对应的最终对数似然比,包括:根据所述联合编码数据对应的对数似然比、所述第一上行数据对应的初始对数似然比和所述第二上行数据对应的初始对数似然比,确定所述第一上行数据的先验概率信息和所述第二上行数据的先验概率信息;根据所述第一上行数据的先验概率信息和所述第一上行数据对应的初始对数似然比,确定所述第一上行数据对应的最终对数似然比;根据所述第二上行数据的先验概率信息和所述第二上行数据对应的初始对数似然比,确定所述第二上行数据对应的最终对数似然比。
- 根据权利要求21至28中任一项所述的方法,其特征在于,所述获取所述第一终端设备采用不同于所述第一传输资源的第二传输资源发送的联合编码数据,包括:获取所述第一传输资源的信息和所述第三传输资源的信息;根据所述第一传输资源的信息和所述第三传输资源的信息,确定所述第二传输资源;获取采用所述第二传输资源传输的所述联合编码数据。
- 根据权利要求21至29中任一项所述的方法,其特征在于,若所述第二传输资源具体为第二CTU,所述第二CTU的索引IndxCTU由下式确定:IndxCTU=(Sig1+Sig2)mod NCTU;其中,Sig1为所述第一传输资源包括的码资源的索引,Sig2为所述第三传输资源包括的码资源的索引,NCTU为当前子帧中包括的CTU的数目。
- 根据权利要求30所述的方法,其特征在于,所述码资源包括下列中的一种:稀疏码多址接入码本、低密度签名组和码分多址码组。
- 根据权利要求21至31中任一项所述的方法,其特征在于,所述接收第一终端设备采用第一传输资源发送的第一上行数据和第二终端设备采用第三传输资源发送的第二上行数据,包括:接收所述第一终端设备和所述第二终端设备采用免授权传输方式分别发送的所述第一上行数据和所述第二上行数据。
- 一种传输上行数据的装置,其特征在于,包括:获取单元,用于获取第二终端设备的第二上行数据;编码单元,用于对第一终端设备的第一上行数据和所述获取单元获取的所述第二上行数据进行联合编码处理,得到联合编码数据;发送单元,用于采用第一传输资源向网络设备发送所述第一上行数据,并且采用不同于所述第一传输资源的第二传输资源向所述网络设备发送所述编码单元得到的所述联合编码数据。
- 根据权利要求33所述的装置,其特征在于,所述装置还包括:第一接收单元,用于在所述获取单元获取所述第二终端设备的第二上行数据之前,接收所述网络设备发送的第一指示信息,所述第一指示信息用于指示所述第一终端设备与所述第二终端设备进行发射分集传输;第一确定单元,用于根据所述第一接收单元接收到的所述第一指示信息,确定与所述第二终端设备进行发射分集传输。
- 根据权利要求34所述的装置,其特征在于,所述第一指示信息包括所述第二终端设备所属终端设备分组的组标识信息以及所述第二终端设备在所述终端设备分组内的编号信息。
- 根据权利要求33所述的装置,其特征在于,所述发送单元还用于在所述获取单元获取所述第二终端设备的第二上行数据之前,向包括所述第二终端设备在内的至少一个终端设备发送发射分集传输请求,所述发射分集传输请求用于请求与所述第一终端设备进行发射分集传输;所述装置还包括:第二接收单元,用于接收所述第二终端设备根据所述发送单元发送的所述发射分集传输请求发送的发射分集传输响应;第二确定单元,用于根据所述第二接收单元接收到的所述发射分集传输响应,确定与所述第二终端设备进行发射分集传输。
- 根据权利要求36所述的装置,其特征在于,所述发送单元还用于向所述网络设备发送第二指示信息,所述第二指示信息用于指示所述第一终端设备与所述第二终端设备进行发射分集传输。
- 根据权利要求33至36中任一项所述的装置,其特征在于,所述装置还包括:校验码添加单元,用于在所述发送单元采用第一传输资源向网络设备发送所述第一上行数据之前,为所述第一上行数据添加循环冗余校验CRC码,其中,所述CRC码采用所述第二终端设备的标识进行加扰;所述发送单元具体用于采用所述第一传输资源向所述网络设备发送所述校验码添加单元添加了所述CRC码的所述第一上行数据。
- 根据权利要求33至38中任一项所述的装置,其特征在于,所述获取单元具体用于:通过设备到设备D2D传输接收所述第二终端设备发送的所述第二上行数据。
- 根据权利要求33至39中任一项所述的装置,其特征在于,所述第一传输资源具体为第一竞争传输单元CTU,所述第二传输资源具体为第二CTU,并且所述第一CTU和所述第二CTU位于不同的竞争接入区域。
- 根据权利要求33至40中任一项所述的装置,其特征在于,所述获取单元还用于在所述发送单元采用不同于所述第一传输资源的第二传输资源向所述网络设备发送所述联合编码数据之前,获取所述第二终端设备发送所述第二上行数据时采用的第三传输资源的信息;所述装置还包括:第三确定单元,用于根据所述第一传输资源和所述获取单元获取的所述第三传输资源的信息,确定发送所述联合编码数据所采用的所述第二传输资源;所述发送单元具体用于采用所述第三确定单元确定的所述第二传输资源,发送所述联合编码数据。
- 根据权利要求41所述的装置,其特征在于,若所述第二传输资源具体为第二CTU,所述第二CTU的索引号IndxCTU由下式确定:IndxCTU=(Sig1+Sig2)mod NCTU;其中,Sig1为所述第一传输资源包括的码资源的索引,Sig2为所述第三传输资源包括的码资源的索引,NCTU为当前子帧中包括的CTU的数目。
- 根据权利要求42所述的装置,其特征在于,所述码资源包括下列中的一种:稀疏码多址接入码本、低密度签名序列和码分多址码。
- 根据权利要求33至43中任一项所述的装置,其特征在于,所述发送单元具体用于采用免授权传输方式向所述网络设备发送所述第一上行数据和所述联合编码数据。
- 根据权利要求33至44中任一项所述的装置,其特征在于,所述装置为所述第一终端设备。
- 一种传输上行数据的装置,其特征在于,包括:确定单元,用于确定待发送的上行数据以及所述上行数据的传输资源;发送单元,用于向第一终端设备发送所述确定单元确定的所述上行数据和所述传输资源的信息,以及采用所述确定单元确定的所述传输资源向网络设备发送所述上行数据。
- 根据权利要求46所述的装置,其特征在于,所述装置还包括:第一接收单元,用于在所述发送单元向所述第一终端设备发送所述上行数据和所述传输资源的信息之前,接收所述网络设备发送的第一指示信息,所述第一指示信息用于指示所述第一终端设备与第二终端设备进行发射分集传输;所述确定单元还用于根据所述第一接收单元接收的所述第一指示信息,确定与所述第一终端设备进行发射分集传输。
- 根据权利要求47所述的装置,其特征在于,所述第一指示信息包括所述第一终端设备所属终端设备分组的组标识信息以及所述第一终端设备在所述终端设备分组内的编号信息。
- 根据权利要求46所述的装置,其特征在于,所述装置还包括:第二接收单元,用于在所述发送单元向所述第一终端设备发送所述上行数据和所述传输资源的信息之前,接收所述第一终端设备发送的发射分集传输请求,所述发射分集传输请求用于请求与所述第一终端设备进行发射分集传输;所述确定单元还用于根据所述第二接收单元接收的所述发射分集传输请求,确定与所述第一终端设备进行发射分集传输;所述发送单元还用于向所述第一终端设备发送发射分集传输响应。
- 根据权利要求46至49中任一项所述的装置,其特征在于,所述装置还包括:校验码添加单元,用于在所述发送单元采用所述传输资源向网络设备发送所述上行数据之前,为所述上行数据添加循环冗余校验CRC码,其中,所述CRC码采用所述第一终端设备的标识进行加扰;所述发送单元具体用于采用所述传输资源向网络设备发送所述校验码添加单元添加了所述CRC码的所述上行数据。
- 根据权利要求46至50中任一项所述的装置,其特征在于,所述发送单元具体用于通过设备到设备D2D传输向所述第一终端设备发送所述上 行数据和所述传输资源的信息。
- 根据权利要求46至51中任一项所述的装置,其特征在于,所述传输资源的信息包括码资源的信息,所述码资源包括下列中的一种:稀疏码多址接入码本、低密度签名序列和码分多址码。
- 根据权利要求46至52中任一项所述的装置,其特征在于,所述发送单元具体用于采用免授权传输方式向所述网络设备发送所述上行数据。
- 根据权利要求46至53中任一项所述的装置,其特征在于,所述装置为所述第二终端设备。
- 一种传输上行数据的装置,其特征在于,包括:接收单元,用于接收第一终端设备采用第一传输资源发送的第一上行数据和第二终端设备采用第三传输资源发送的第二上行数据;获取单元,用于获取所述第一终端设备采用不同于所述第一传输资源的第二传输资源发送的联合编码数据,所述联合编码数据是通过对所述接收单元接收的所述第一上行数据与所述第二上行数据进行联合编码处理得到的;译码单元,用于根据所述获取单元获取到的所述联合编码数据以及所述接收单元接收到的所述第一上行数据和所述第二上行数据,得到所述第一上行数据的译码结果和所述第二上行数据的译码结果。
- 根据权利要求55所述的装置,其特征在于,所述装置还包括:第一确定单元,用于在所述接收单元接收第一终端设备采用第一传输资源发送的第一上行数据和第二终端设备采用第三传输资源发送的第二上行数据之前,确定所述第一终端设备和第二终端设备进行发射分集传输;发送单元,用于向所述第一终端设备和所述第二终端设备中的至少一个终端设备发送第一指示信息,所述第一指示信息用于指示所述第一确定单元确定的所述第一终端设备和所述第二终端设备进行发射分集传输。
- 根据权利要求56所述的装置,其特征在于,所述第一确定单元具体用于根据所述第一终端设备和所述第二终端设备的传输可靠性信息,确定所述第一终端设备和所述第二终端设备进行发射分集传输,所述传输可靠性信息包括下列信息中的至少一项:发射分集传输能力信息、当前上行信道质量信息和历史误码率信息。
- 根据权利要求55所述的装置,其特征在于,所述接收单元还用于在所述接收第一终端设备采用第一传输资源发送的第一上行数据和第二终 端设备采用第三传输资源发送的第二上行数据之前,接收所述第一终端设备和所述第二终端设备中的至少一个终端设备发送的第二指示信息,所述第二指示信息用于指示所述第一终端设备和所述第二终端设备进行发射分集传输。
- 根据权利要求55至58中任一项所述的装置,其特征在于,所述装置还包括:第二确定单元,用于在所述获取单元获取所述第一终端设备采用不同于所述第一传输资源的第二传输资源发送的联合编码数据之前,确定分集发射传输的判断条件得到满足,所述分集发射传输的判断条件包括下列中的至少一种:所述第一上行数据对应的循环冗余校验CRC码是采用所述第二终端设备的标识进行加扰的,以及所述第二上行数据对应的CRC码是采用所述第一终端设备的标识进行加扰的;以及根据所述分集发射传输的判断条件得到满足,确定所述第一上行数据和所述第二上行数据是以分集发射传输方式发送的。
- 根据权利要求55至59中任一项所述的装置,其特征在于,所述第一传输资源具体为第一竞争传输单元CTU,所述第二传输资源具体为第二CTU,所述第三传输资源具体为不同于所述第一CTU和所述第二CTU的第三CTU,并且所述第三CTU位于与第一CTU和所述第二CTU不同的竞争接入区域。
- 根据权利要求55至60中任一项所述的装置,其特征在于,所述译码单元具体用于:对接收到的所述第一上行数据进行解调处理,获得所述第一上行数据对应的初始对数似然比;对接收到的所述第二上行数据进行解调处理,获得所述第二上行数据对应的初始对数似然比;对获取到的所述联合编码数据进行解调处理,获得所述联合编码数据对应的对数似然比;根据所述联合编码数据对应的对数似然比、所述第一上行数据对应的初始对数似然比和所述第二上行数据对应的初始对数似然比,确定所述第一上行数据对应的最终对数似然比和所述第二上行数据对应的最终对数似然比;对所述第一上行数据对应的最终对数似然比进行译码处理,以获得所述 第一上行数据对应的译码结果,并且对所述第二上行数据对应的最终对数似然比进行译码处理,以获得所述第二上行数据对应的译码结果。
- 根据权利要求61所述的装置,其特征在于,所述译码单元具体用于:根据所述联合编码数据对应的对数似然比、所述第一上行数据对应的初始对数似然比和所述第二上行数据对应的初始对数似然比,确定所述第一上行数据的先验概率信息和所述第二上行数据的先验概率信息;根据所述第一上行数据的先验概率信息和所述第一上行数据对应的初始对数似然比,确定所述第一上行数据对应的最终对数似然比;根据所述第二上行数据的先验概率信息和所述第二上行数据对应的初始对数似然比,确定所述第二上行数据对应的最终对数似然比。
- 根据权利要求55至62中任一项所述的装置,其特征在于,所述获取单元具体用于:获取所述第一传输资源的信息和所述第三传输资源的信息;根据所述第一传输资源的信息和所述第三传输资源的信息,确定所述第二传输资源;获取采用所述第二传输资源传输的所述联合编码数据。
- 根据权利要求55至63中任一项所述的装置,其特征在于,若所述第二传输资源具体为第二CTU,所述第二CTU的索引IndxCTU由下式确定:IndxCTU=(Sig1+Sig2)mod NCTU;其中,Sig1为所述第一传输资源包括的码资源的索引,Sig2为所述第三传输资源包括的码资源的索引,NCTU为当前子帧中包括的CTU的数目。
- 根据权利要求64所述的装置,其特征在于,所述码资源包括下列中的一种:稀疏码多址接入码本、低密度签名组和码分多址码组。
- 根据权利要求46至65中任一项所述的装置,其特征在于,所述接收单元具体用于接收所述第一终端设备和所述第二终端设备采用免授权传输方式分别发送的所述第一上行数据和所述第二上行数据。
- 根据权利要求46至66中任一项所述的装置,其特征在于,所述装置为所述网络设备。
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US20180123763A1 (en) | 2018-05-03 |
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