WO2017088155A1 - Procédé et appareil de transmission de données, et terminal - Google Patents

Procédé et appareil de transmission de données, et terminal Download PDF

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Publication number
WO2017088155A1
WO2017088155A1 PCT/CN2015/095716 CN2015095716W WO2017088155A1 WO 2017088155 A1 WO2017088155 A1 WO 2017088155A1 CN 2015095716 W CN2015095716 W CN 2015095716W WO 2017088155 A1 WO2017088155 A1 WO 2017088155A1
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Prior art keywords
data
sub
subframe
resource pool
transmitting
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PCT/CN2015/095716
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English (en)
Chinese (zh)
Inventor
鲁振伟
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华为技术有限公司
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Priority to PCT/CN2015/095716 priority Critical patent/WO2017088155A1/fr
Publication of WO2017088155A1 publication Critical patent/WO2017088155A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a data transmission method, apparatus, and terminal.
  • LTE D2D has two physical layer transport channels: a communication channel and a discovery channel.
  • the Communication channel indicates the time domain location of the data carried in the time domain resource pool by using scheduling assignment (SA) information.
  • SA scheduling assignment
  • each data is fixedly transmitted 4 times.
  • T-RPT Time Resource Pattern of Transmission
  • the T-RPT is a 7-bit index value, and a bit table can be obtained by looking up the table using the index value (the bit table can have different lengths, for example, 8 bits).
  • Each bit of the bit table corresponds to one subframe.
  • the length of the time domain resource pool may be greater than the length of the bit table, and the bit table is repeated in the time domain resource pool until the time domain resource pool ends. Since the bit table is continuously repeated in the entire time domain resource pool, all subframes corresponding to 1 in the bit table are used for the transmission of the data, and the data is transmitted at least once in the subframe indicated by a bit table.
  • the present application provides a data transmission method, device and terminal, which can flexibly change the number of data transmissions and improve resource utilization.
  • the first aspect provides a data transmission method, including:
  • the sender obtains the SA information of the data that needs to be transmitted, and the SA information is used to indicate the time domain resource.
  • the sending end determines, according to the SA information, at least one sub-resource pool that can be used for transmitting data in the time domain resource pool;
  • the transmitting end transmits data through at least one subframe that can be used to transmit data.
  • the sending end can obtain the SA information of the data that needs to be transmitted in the following two manners: First, the sending end pre-configures the SA information of the data, that is, the transmitting end determines the number of times the data is transmitted, and can be used for transmitting.
  • the transmitting end sends a data transmission request for the data to the base station, and Receiving the SA information of the data configured by the base station in response to the data transmission request, that is, the number of transmissions of the data determined by the base station, the sub-resource pool that can be used for transmitting data, and the sub-resource pool that can be used for transmitting data can be used for transmitting data.
  • Subframe where the data is transmitted at least once.
  • the sending end may determine, according to the SA information, at least one sub-resource pool that can be used for transmitting the data in the time domain resource pool, and according to the scheduling allocation information, each of the data that can be used for transmitting the data. At least one subframe that can be used to transmit data is determined in the child resource pool, and the data is transmitted through at least one subframe that can be used to transmit data.
  • the sender can divide the time domain resource pool into five sub-resource pools, and each sub-resource pool includes 8 subframes.
  • the data that needs to be transmitted may be a notification message, a confirmation message, a log, a file, or the like, and is not limited by the embodiment of the present invention.
  • the SA information is used to indicate the time domain location in the time domain resource pool that can be used to carry data.
  • the time domain resource pool can occupy at least one subframe, and the time domain resource pool is a public resource. Different senders can send different data through different subframes in the time domain resource pool, or the same sender can send the same data through different subframes in the time domain resource pool, and so on, the number of subframes occupied by the time domain resource pool.
  • the base station can be configured by the base station.
  • the base station can broadcast the notification message to the at least two terminals, where the notification message carries the resource pool information, and the sender can obtain the resource pool information and determine the number of subframes occupied by the time domain resource pool.
  • the time domain resource pool may include at least one sub-resource pool, and the number of sub-frames in each sub-resource pool is the same, and the sum of the number of sub-frames in all sub-resource pools is a sub-frame occupied by the time domain resource pool.
  • the structure of the time domain resource pool shown in FIG. 2 may include five sub-resource pools.
  • the SA information may include sub-pool indication information
  • the sender may determine at least one sub-resource pool that can be used for transmitting data in the time domain resource pool according to the sub-pool indication information.
  • the sub-pool indication information is used to indicate a sub-resource pool in the time-domain resource pool that can be used for transmitting data
  • the sub-pool indication information may be a bit string including the digit 0 and/or the digit 1 or the sub-pool indication information may be an index value.
  • the different index values correspond to different bit strings, and the bit string includes a digital 0 and/or a digital 1, wherein each binary bit in the bit string corresponds to a sub-resource pool, and the digital 1 can indicate that the corresponding sub-resource pool is available.
  • the sub-resource pool for transmitting data, the digital 0 may indicate that each sub-frame in the corresponding sub-resource pool does not need to transmit the data.
  • the sub-pool indication information is 10010.
  • the sender divides the time domain resource pool into five sub-resource pools.
  • 10010 indicates that the sub-resource pools 1 and 4 are available for transmission.
  • the sub-resource pool of data, each sub-cell pool 2, 3, 5 does not need to transmit the data.
  • the sender obtains the bit string corresponding to the index value as 10010 according to the correspondence between the index value and the bit string, wherein the sender divides the time domain resource pool into five sub-resource pools.
  • 10010 indicates that the sub-resource pools 1 and 4 are sub-resource pools that can be used to transmit data, and each of the sub-resource pools 2, 3, and 5 does not need to transmit the data.
  • the sub-pool indication information may be a bit string or an index value, and different index values correspond to different bit strings, and the bit string may include a digital 0 and/or a digital 1, where each binary bit in the bit string corresponds to one
  • the digital 0 may indicate that the corresponding sub-resource pool is a sub-resource pool that can be used for transmitting data
  • the number 1 may indicate that each sub-frame in the corresponding sub-resource pool does not need to transmit the data, which is not specifically required by the embodiment of the present invention. limit.
  • the SA information may further include a T-RPT, and the sender may obtain a bit table corresponding to the T-RPT, and determine, according to the bit table, at least one available for transmitting data in each of the sub-resource pools available for transmitting data. Subframe.
  • the bit table is used to indicate a subframe that can be used for transmitting data in each sub-resource pool that can be used for transmitting data, and the correspondence between the T-RPT and the bit table can follow the mapping relationship between the traditional T-RPT and the bit table.
  • the bit table may be a bit string including a digital 0 and/or a digital 1, where each binary bit in the bit string corresponds to one subframe, and the digital 1 indicates that the corresponding subframe is a subframe that can be used for transmitting data.
  • the digital 0 indicates that the corresponding subframe does not need to transmit the data.
  • the embodiment of the present invention still uses the mapping relationship between the traditional T-RPT and the bit table, and only re-defines the bit table to indicate a sub-frame that can be used for transmitting data in each sub-resource pool that can be used for transmitting data, which can reduce the data transmission system. Improve difficulty and reduce overhead.
  • the SA information may include a T-RPT
  • the sender may obtain a bit table corresponding to the T-RPT, and determine at least one sub-resource pool that can be used for transmitting data in the time domain resource pool according to the bit table.
  • Resource pool the number 0 indicates that each subframe in the corresponding sub-resource pool does not need to transmit the data.
  • the sender can determine that the child resource pools 2, 6, and 7 in the time domain resource pool are available for transmitting data. Child resource pool.
  • the embodiment of the present invention still uses the mapping relationship between the traditional T-RPT and the bit table, and only redefines the bit table to indicate a sub-resource pool that can be used for transmitting data in the time domain resource pool, which can reduce the improvement difficulty and reduce the data transmission system. Overhead.
  • the SA information may further include subframe indication information, and the transmitting end may determine, according to the subframe indication information, at least one subframe that can be used for transmitting data in each of the sub-resource pools available for transmitting data.
  • At least one subframe that can be used for transmitting data is determined in each sub-resource pool that can be used for transmitting data according to the subframe indication information, and the subframe indication information of different data may be different, and the flexible configuration may be used to transmit data. Subframe.
  • the sender can obtain the length of the time domain resource pool and the length of the bit table corresponding to the T-RPT.
  • the length of the bit table is determined as the number of sub-frames in each sub-resource pool, and the length of the time-domain resource pool is divided by the length of the bit table to obtain the number of sub-resource pools, and according to the number of sub-resource pools and The number of sub-frames in each sub-resource pool is divided into time-domain resource pools.
  • the time domain resource pool can be divided into five sub-resource pools, and each sub-resource pool includes 8 subframes.
  • the sending end may determine the number of the sub-resource pools according to the sub-pool indication information, obtain the length of the time domain resource pool, and divide the length of the time domain resource pool.
  • the number of sub-resource pools is obtained, and the number of sub-frames in each sub-resource pool is obtained.
  • the time-domain resource pool is divided according to the number of sub-resource pools and the number of sub-frames in each sub-resource pool.
  • the sender may acquire the length of the time domain resource pool and the length of the sub-pool indication information,
  • the length of the pool indication information is determined as the number of the sub-resource pools, and the length of the sub-area resource pool is divided by the length of the sub-pool indication information to obtain the number of sub-frames in each sub-resource pool, according to the number of sub-resource pools and The number of sub-frames in each sub-resource pool is divided into time-domain resource pools.
  • the length of the time domain resource pool is the number of subframes occupied by the time domain resource pool
  • the length of the subpool indication information is the number of binary bits in the subpool indication information.
  • the number of sub-frames occupied by the time domain resource pool is 40
  • the length of the real-time domain resource pool is 40 ms
  • the length of the sub-pool indication information is 5 bits.
  • Each sub-resource pool includes 8 sub-frames.
  • the transmitting end may acquire a bit string corresponding to the index value, where the bit string includes the digit 0 and/or the digit 1.
  • the sender can obtain the length of the time domain resource pool and the length of the bit string corresponding to the sub-pool indication information, and determine the length of the bit string corresponding to the sub-pool indication information as the number of the sub-resource pool, and the time-domain resource pool.
  • the length of the bit string is divided by the length of the bit string corresponding to the sub-pool indication information, and the number of the sub-frames in each sub-resource pool is obtained. According to the number of sub-resource pools and the number of sub-frames in each sub-resource pool, the time-domain resources are used.
  • the pool is divided. It is not specifically limited by the embodiments of the present invention.
  • the sending end may determine the number of subframes in each sub-resource pool according to the subframe indication information, and obtain the length of the time domain resource pool. Divide the length of the time domain resource pool by the number of sub-frames in the sub-resource pool, and obtain the number of sub-resource pools. According to the number of sub-resource pools and the number of sub-frames in each sub-resource pool, the time-domain resources are used. The pool is divided.
  • the sender may acquire the length of the time domain resource pool and the length of the subframe indication information, and The length of the frame indication information is determined as the number of subframes in each sub-resource pool, and the length of the time domain resource pool is divided by the length of the sub-frame indication information to obtain the number of sub-resource pools, and according to the number of sub-resource pools. And the number of subframes in each sub-resource pool, and the time domain resource pool is divided.
  • the length of the subframe indication information is the number of binary bits in the subframe indication information.
  • the number of sub-frames occupied by the time domain resource pool is 40
  • the length of the real-time domain resource pool is 40 ms
  • the length of the sub-frame indication information is 8 bits.
  • the number of the sub-resources in the sub-resource pool is eight
  • the sender can divide the time-domain resource pool into five sub-children.
  • the transmitting end may acquire a bit string corresponding to the index value, where the bit string includes the digit 0 and/or the digit 1.
  • the sender may obtain the length of the time domain resource pool and the length of the bit string corresponding to the subframe indication information, and determine the length of the bit string corresponding to the subframe indication information as the number of subframes in each sub-resource pool, and The length of the time domain resource pool is divided by the length of the bit string corresponding to the subframe indication information, and the number of sub-resource pools in the time domain resource pool is obtained, according to the number of sub-resource pools and the number of sub-frames in each sub-resource pool. , divide the time domain resource pool. It is not specifically limited by the embodiments of the present invention.
  • the sender can obtain the bit table corresponding to the T-RPT, and obtain the length of the time domain resource pool.
  • the length of the bit table is determined as the number of the sub-resource pool, the length of the time domain resource pool is divided by the length of the bit table, and the number of sub-frames in each sub-resource pool is obtained, and according to the sub-resource The number of pools and the number of subframes in each sub-resource pool are divided into time-domain resource pools.
  • the SA information may include the transmission frequency indication information, and the transmitting end may determine, according to the transmission frequency indication information, a subframe for transmitting data in all subframes available for transmitting data, for transmitting data.
  • the number of subframes is the same as the number of transmissions indicated by the number-of-transmissions indication information, and the data is transmitted through the subframe for transmitting data.
  • the transmission number indication information is used to indicate the number of times of data transmission. Taking the structure diagram of the time domain resource pool shown in FIG. 2 as an example, the number of transmissions indicates that the number of data transmissions is two, and the sender divides the time domain resource pool into five sub-resource pools, and each sub-resource pool includes eight sub-resources.
  • the frame, the transmitting end determines, according to the SA information, the sub-resource pools 1, 4 are sub-resource pools that can be used for transmitting data, and the sub-frames 2, 6, and 7 in the sub-resource pools that can be used for transmitting data are sub-frames that can be used for transmitting data.
  • the embodiment of the present invention includes, but is not limited to, the foregoing determining manner of a subframe for transmitting data, for example, the transmitting end may be in all subframes that can be used for transmitting data. Two randomly selected subframes for transmitting data are used as subframes for transmitting data.
  • the transmitting end may indicate the information according to the number of transmissions, and all available Determining at least two subframe sets in a subframe for transmitting data, each subframe set includes at least one subframe for transmitting data, and each subframe is used for transmitting the number of subframes for transmitting data and transmission indicated by the number of transmission indication information.
  • the number of times is the same, and each data is transmitted through a subframe for transmitting data in each subframe set.
  • the number of subframe sets is the same as the number of data.
  • the sender can divide the time domain resource pool into five sub-resource pools according to the SA information, and each sub-resource pool includes eight sub-frames. The sender determines that the sub-resource pools 1 and 4 are sub-resources that can be used for transmitting data according to the SA information.
  • each subframe sets includes 2 A subframe for transmitting data, and transmitting the first data through each of the subframes for transmitting data in the subframe set 1, and transmitting the second data through each of the subframes for transmitting the data in the subframe set 2.
  • the transmitting end may use the first two subframes in the subframes that can be used for transmitting data to transmit data as the subframe for transmitting data in the subframe set 1, and use the foregoing two for transmission.
  • Two subframes adjacent to the subframe of the data that can be used for transmitting data are used as subframes for transmitting data in the subframe set 2, for example, subframes 2 and 6 in the sub-resource pool 1 are determined as the subframe set 1
  • the subframe for transmitting data, the subframe 7 in the sub-resource pool 1 and the subframe 2 in the sub-resource pool 2 are determined as the sub-frames for transmitting data in the subframe set 2, which need to be explained
  • the embodiment of the present invention includes, but is not limited to, the foregoing determining manner.
  • the transmitting end may use a subframe that can be used for transmitting data randomly selected in all subframes that can be used for transmitting data as a subframe for transmitting data, and is random.
  • a subframe set to which a subframe for transmitting data belongs is determined.
  • the embodiment of the invention can simultaneously transmit multiple data in the time domain resource pool, and can change the number of data transmission times more flexibly by using the transmission number indication information, thereby effectively improving resource utilization.
  • the second aspect provides a data transmission method, including:
  • the sender obtains the SA information of the data that needs to be transmitted, and the SA information includes a T-RPT and a transmission number indication information;
  • the transmitting end determines, according to the bit table, a subframe that can be used for transmitting data in the time domain resource pool;
  • the transmitting end determines a subframe for transmitting data in a subframe that can be used for transmitting data, and the number of subframes used for transmitting data is the same as the number of transmissions indicated by the transmission frequency indication information;
  • the transmitting end transmits data through each sub-frame for transmitting data.
  • the time domain resource pool will correspond to five of the bit tables, for example, the bit table corresponding to the T-RPT is 01000000, the corresponding number of the subframes occupied by the real-time resource pool is: 0100000001000000010000000100000001000000, and the transmitting end may determine that the subframes that can be used for transmitting data are subframes 2, 10, 18, 26, and 34, if the number of transmission indications indicates Data transmission The number of transmissions is two, and the transmitting end may determine two subframes for transmitting data in the above-mentioned subframes for transmitting data, and transmit the data through the above two subframes for transmitting data.
  • the transmitting end may use the first two subframes in the subframes that can be used for transmitting data to transmit data as a subframe for transmitting data, for example, determining subframes 2 and 10 as data for transmitting data.
  • Sub-frames it should be noted that the embodiment of the present invention includes, but is not limited to, the foregoing determining manner of a subframe for transmitting data, for example, the transmitting end may randomly select two available in all subframes that can be used for transmitting data.
  • the subframe for transmitting data serves as a subframe for transmitting data.
  • the embodiment of the present invention increases the number of transmission times indication information in the traditional data transmission method, and can flexibly change the number of times of data transmission and improve resource utilization.
  • the embodiment of the present invention is conventional. Data transfer system changes are small and can reduce overhead.
  • the transmitting end may determine at least two sub-frames in the subframes that can be used for transmitting data according to the transmission frequency indication information.
  • a frame set each of the subframe sets includes at least one subframe for transmitting data, and the number of subframes used for transmitting data in each subframe is the same as the number of transmissions indicated by the transmission frequency indication information, and is further concentrated by each subframe.
  • the sub-frame for transmitting data transmits each data.
  • the number of subframe sets is the same as the number of data.
  • the subframes that can be used for transmitting data are subframes 2, 10, 18, 26, and 34, and the data that needs to be transmitted currently includes the first data and the second data, first.
  • the data and the second data are transmitted twice, and the transmitting end can use the first two of the subframes that can be used for transmitting data to transmit data as the sub-frame 1 for transmitting data.
  • a frame two subframes adjacent to the above two subframes for transmitting data, which are available for transmitting data, as a subframe for transmitting data in the subframe set 2, for example, determining subframes 2 and 10 as a subframe for transmitting data in the subframe set 1, determining the subframes 18, 26 as subframes for transmitting data in the subframe set 2, and transmitting the first data through the subframes 2, 10, through the sub-frames Frames 18, 26 transmit the second data.
  • the embodiment of the present invention includes, but is not limited to, the foregoing determining manner.
  • the embodiment of the invention can simultaneously transmit multiple data in the time domain resource pool, and can flexibly change the number of data transmission times and improve resource utilization by using the transmission frequency indication information, and further, compared with the first aspect.
  • the data transmission method, the embodiment of the present invention has small changes to the conventional data transmission system, and the overhead can be reduced.
  • a third aspect provides a computer storage medium, wherein the computer storage medium can store a program that, when executed, includes some or all of the steps of the first aspect.
  • a fourth aspect provides a computer storage medium, wherein the computer storage medium can store a program that, when executed, includes some or all of the steps of the second aspect.
  • a fifth aspect provides a data transmission apparatus, where the apparatus may include an allocation information acquisition unit, a sub-resource pool determination unit, a subframe determination unit, and a data transmission unit, and the apparatus may be used to implement part or all of the first aspect step.
  • a seventh aspect provides a data transmission apparatus, where the apparatus may include an allocation information acquisition unit, a bit table acquisition unit, a first subframe determination unit, a second subframe determination unit, and a data transmission unit, and the apparatus may be used to implement Combine some or all of the steps of the second aspect.
  • the eighth aspect provides a terminal device including a processor, a transmitter, a receiver, and a memory, and the processor, the transmitter, and the receiver can be used to implement some or all of the steps in conjunction with the second aspect.
  • the sending end is configured to obtain the SA information of the data that needs to be transmitted, and determine, according to the SA information, at least one sub-resource pool that can be used for transmitting data in the time domain resource pool, and according to the SA information, each sub-resource that can be used for transmitting data At least one subframe that can be used to transmit data is determined in the pool, and data is transmitted to the receiving end through at least one subframe that can be used to transmit data.
  • the receiving end is configured to obtain the SA information of the data, determine, according to the SA information, each sub-resource pool that can be used for transmitting data in the time domain resource pool, and each sub-resource available for transmitting data according to the SA information.
  • the source pool determines a subframe that can be used to transmit data, and receives data transmitted by the sender at a time domain location where each subframe in which data can be transmitted is located.
  • the sending end is configured to obtain the SA information of the data that needs to be transmitted, and the SA information may include a T-RPT and a transmission time indication information, obtain a bit table corresponding to the T-RPT, and determine, in the time domain resource pool, the available transmission according to the bit table.
  • the subframe of the data determines a subframe for transmitting data in a subframe usable for transmitting data according to the transmission number indication information, and transmits the data through each subframe for transmitting data.
  • the receiving end is configured to obtain SA information of the data, and determine, according to the bit table corresponding to the T-RPT in the SA information, a subframe that can be used for transmitting data in the time domain resource pool, according to a transmission rule negotiated between the pre-and the transmitting end.
  • a subframe for transmitting data is determined in a subframe usable for transmitting data, and data transmitted by the transmitting end is received at a time domain location where the subframe for transmitting data is located.
  • FIG. 1 is a schematic diagram of a frame of a data transmission system provided in an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a time domain resource pool provided in an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a data transmission method provided in an embodiment of the present invention.
  • FIG. 4 is a schematic flow chart of a data transmission method according to another embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of a data transmission method according to another embodiment of the present invention.
  • FIG. 6 is a schematic flowchart diagram of a data transmission method according to another embodiment of the present invention.
  • FIG. 7 is a schematic flowchart diagram of a data transmission method according to another embodiment of the present invention.
  • FIG. 8 is a schematic flowchart of a data transmission method according to another embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a data transmission apparatus according to an embodiment of the present invention.
  • the receiving end acquires a bit table corresponding to the T-RPT, and determines each sub-resource pool that can be used for transmitting data according to the bit table in the time domain resource pool.
  • the sender obtains the SA information of the data that needs to be transmitted, and determines at least one sub-resource pool that can be used for transmitting data in the time domain resource pool according to the SA information, and is available according to the SA information. Determining at least one subframe that can be used for transmitting data in the sub-resource pool for transmitting data, transmitting data to the receiving end through at least one subframe that can be used for transmitting data, and the receiving end acquires SA information of the data, according to the SA information in the time domain.
  • the base station may establish a communication connection with the sending end and the receiving end respectively, and the sending end sends a data transmission request to the base station, where the data transmission request may carry the terminal identification information of the transmitting end and the terminal identification information of the receiving end, and the base station responds to the The data transmission request configures the SA information of the data, and sends the configured SA information to the sending end according to the terminal identification information of the sending end, and sends the configured SA information to the receiving end according to the terminal identification information of the receiving end.
  • the transmitting end determines the subframe used for transmitting the data in the subframe that can be used for transmitting the data, including:
  • the receiving end receives the data transmitted by the transmitting end in the time domain position of the subframe for transmitting the data, which may be:
  • the time domain location where the subframe is located receives the data transmitted by the transmitting end, and can flexibly change the number of data transmissions and improve resource utilization.
  • FIG. 3 is a schematic flowchart of a data transmission method according to an embodiment of the present invention.
  • a time domain resource pool carries only one data
  • the SA information of the data may include sub-pool indication information.
  • the T-RPT, the sending end or the receiving end may determine, in the time domain resource pool, a sub-resource pool that can be used for transmitting data according to the sub-pool indication information, and determine each sub-resource that can be used for transmitting data according to the bit table corresponding to the T-RPT.
  • the data transmission method in the embodiment of the present invention may include at least:
  • the sending end determines, according to the sub-pool indication information, at least one sub-resource pool that can be used for transmitting data in the time domain resource pool.
  • the receiving end determines, according to the sub-pool indication information, at least one sub-resource pool that can be used for transmitting data in the time domain resource pool.
  • the receiving end receives data transmitted by the transmitting end in a time domain location where each subframe that can be used for transmitting data is located.
  • the receiving end may determine, at the bottom of each sub-resource pool that can be used for transmitting data, at least one subframe that can be used for transmitting data, and may be used in all data transmission.
  • a subframe for transmitting data is determined in the subframe, and data transmitted by the transmitting end is received at a time domain position where the subframe for transmitting data is located.
  • the number of transmissions of the data indicated by the transmission number indication information is 2 times
  • the sub-resource pools that can be used for transmitting data are the sub-resource pools 1, 4
  • the sub-frames that can be used for transmitting data are the sub-frames 2 in the sub-resource pool 1.
  • the receiving end can use all the available transmission numbers according to the transmission rule negotiated in advance with the transmitting end.
  • the subframes used for transmitting data are determined to be subframes 2 and 6, and the data transmitted by the transmitting end is received at the time domain location where the subframes 2 and 6 are located.
  • the sender obtains SA information of data currently to be transmitted, and determines at least one sub-resource pool that can be used for transmitting data in the time domain resource pool according to the sub-pool indication information, and according to T-
  • the RPT determines at least one subframe that can be used for transmitting data in each of the sub-resource pools that can be used for transmitting data, and transmits data to the receiving end through at least one subframe that can be used for transmitting data, and the receiving end acquires SA information of the data, according to the sub-
  • the pool indication information determines each sub-resource pool that can be used for transmitting data in the time domain resource pool, and determines, according to the T-RPT, a subframe that can be used for transmitting data in each sub-resource pool that can be used for transmitting data, and can be used for transmitting data in each
  • the time domain location where the subframe is located receives the data transmitted by the transmitting end, and can flexibly change the number of data transmissions and improve resource utilization.
  • the sender obtains SA information of data currently to be transmitted, where the SA information includes T-RPT and subframe indication information.
  • the SA information may further include transmission number indication information, where the transmission frequency indication information is used to indicate the number of transmissions of the data.
  • the receiving end acquires a bit table corresponding to the T-RPT, and determines, according to the bit table, at least one sub-resource pool that can be used for transmitting data in the time domain resource pool.
  • the receiving end may determine, at the bottom of each sub-resource pool that can be used for transmitting data, at least one subframe that can be used for transmitting data, and may be used in all data transmission.
  • a subframe for transmitting data is determined in the subframe, and data transmitted by the transmitting end is received at a time domain position where the subframe for transmitting data is located.
  • the number of transmissions of the data indicated by the transmission number indication information is 2 times
  • the sub-resource pools that can be used for transmitting data are the sub-resource pools 1, 4
  • the sub-frames that can be used for transmitting data are the sub-frames 2 in the sub-resource pool 1.
  • FIG. 5 is a schematic flowchart of a data transmission method according to another embodiment of the present invention.
  • a time domain resource pool can carry at least two data, and the SA information of each data is the same.
  • the SA information may include sub-pool indication information, T-RPT, and transmission number indication information, and the sender or the receiver may determine, in the time domain resource pool, a sub-resource pool that can be used for transmitting data according to the sub-pool indication information, according to the T-RPT.
  • the sender acquires SA information of at least two data that is currently required to be transmitted.
  • the sending end determines, according to the sub-pool indication information, at least one sub-resource pool that can be used for transmitting data in the time domain resource pool.
  • the sending end may divide the time domain resource pool into at least one sub-resource according to the SA information, according to the sub-pool indication information, before determining at least one sub-resource pool that can be used for transmitting data in the time domain resource pool.
  • Pool, each sub-resource pool includes at least one subframe.
  • the sender acquires a bit table corresponding to the T-RPT, and determines, according to the bit table, at least one subframe that can be used for transmitting data in each of the sub-resource pools that can be used for transmitting data.
  • the transmitting end determines, according to the transmission quantity indication information, at least two subframe sets in all subframes that can be used for transmitting data, where each subframe set includes at least one subframe for transmitting data.
  • the data that needs to be transmitted currently includes the first data and the second data, and the number of transmissions indicated by the transmission frequency indication information is 2 times
  • the subframe that can be used for transmitting data is In subframes 1, 6, and 7 in sub-resource pool 1, and subframes 1, 6, and 7 in sub-resource pool 4, the transmitting end can transmit data in all according to the pre-negotiated transmission rule with the receiving end. Determining 2 subframe sets in the subframe, each subframe set includes 2 subframes for transmitting data, for example, the subframe used in the subframe set 1 for transmitting data is the subframe 1 in the sub-resource pool 1. 6.
  • the subframe for transmitting data in the subframe set 1 is the subframe 7 in the sub-resource pool 1 and the subframe 1 in the sub-resource pool 4.
  • the transmitting end transmits each data to the receiving end by using a subframe for transmitting data in each subframe set.
  • the receiving end receives each data transmitted by the transmitting end in a time domain location where the subframe for transmitting data in each subframe set is located.
  • the transmitting end determines at least one sub-resource pool for transmitting data for transmitting data in the time domain resource pool according to the sub-pool indication information, according to the bit table corresponding to the T-RPT. Determining at least one subframe that can be used for transmitting data in each of the sub-resource pools that can be used for transmitting data, and determining, according to the number-of-transmission indication information, at least two subframe sets in each subframe that can be used for transmitting data, each subframe set including at least a sub-frame for transmitting data, each piece of data is transmitted to the receiving end by using a sub-frame for transmitting data in each sub-frame set, and the receiving end determines at least one data that can be used for transmitting data in the time-domain resource pool according to the sub-pool indication information.
  • a sub-resource pool which determines, according to a bit table corresponding to the T-RPT, at least one subframe that can be used for transmitting data in each sub-resource pool that can be used for transmitting data, according to the transmission frequency indication information, in all subframes that can be used for transmitting data Determining at least two subframe sets, each subframe set including at least one subframe for transmitting data, and transmitting data in each subframe set Each time domain data subframe position where transmission and reception end of the transmission, the flexibility to change the number of transmissions of data, improve resource utilization.
  • FIG. 6 is a schematic flowchart of a data transmission method according to another embodiment of the present invention.
  • a time domain resource pool can carry at least two data, and the SA information of each data is the same.
  • the SA information may include a T-RPT, a subframe indication information, and a transmission number indication information, and the sender or the receiver may determine, in the time domain resource pool, a child resource pool that can be used for transmitting data according to the bit table corresponding to the T-RPT, according to the
  • the subframe indication information determines a subframe that is available for transmitting data in each of the sub-resource pools available for transmitting data, and determines at least two subframe sets, each subframe, in all subframes available for transmitting data according to the transmission number indication information.
  • the sender acquires SA information of at least two data that needs to be currently transmitted.
  • the sender acquires a bit table corresponding to the T-RPT, and determines, in the time domain resource pool, at least one sub-resource pool that can be used for transmitting data according to the bit table.
  • the sending end determines at least one available for transmission in the time domain resource pool according to the bit table.
  • the time domain resource pool may be divided into at least one sub-resource pool according to the SA information, where each sub-resource pool includes at least one subframe.
  • the sending end determines, according to the subframe indication information, at least one subframe that can be used for transmitting data in each of the sub-resource pools that can be used for transmitting data.
  • the transmitting end determines at least two subframe sets in all subframes usable for transmitting data according to the transmission number indication information, where each subframe set includes at least one subframe for transmitting data.
  • the transmitting end transmits each data to the receiving end by using a subframe for transmitting data in each subframe set.
  • the receiving end acquires a bit table corresponding to the T-RPT, and determines, in the time domain resource pool, at least one sub-resource pool that can be used for transmitting data according to the bit table.
  • the receiving end determines, according to the subframe indication information, at least one subframe that is available for transmitting data in each of the sub-resource pools that can be used for transmitting data.
  • the receiving end determines, according to the transmission quantity indication information, at least two subframe sets in each subframe that can be used for transmitting data, where each subframe set includes at least one subframe for transmitting data.
  • the receiving end receives each data transmitted by the transmitting end in a time domain location where the subframe for transmitting data in each subframe set is located.
  • the transmitting end determines at least one sub-resource pool that can be used for transmitting data in the time domain resource pool according to the bit table corresponding to the T-RPT, and is available for transmitting data according to the sub-frame indication information.
  • Determining at least one subframe that can be used for transmitting data determining at least two subframe sets in each subframe available for transmitting data according to the transmission number indication information, each subframe set including at least one for transmitting data Sub-frames, each piece of data is transmitted to the receiving end by using a sub-frame for transmitting data in each sub-frame set, and the receiving end determines at least one sub-resource that can be used for transmitting data in the time-domain resource pool according to the bit table corresponding to the T-RPT.
  • the pool determines, according to the subframe indication information, at least one subframe that can be used for transmitting data in each of the sub-resource pools that can be used for transmitting data, and determines at least two subframes in all subframes that can be used for transmitting data according to the transmission frequency indication information.
  • each subframe set includes at least one subframe for transmitting data, and a subframe at which data is transmitted in each subframe set is located at a time Receiving respective data transmission end of the transmission of the location, the flexibility to change the number of transmissions of data, improve resource utilization.
  • FIG. 7 is a schematic flowchart of a data transmission method according to another embodiment of the present invention.
  • a time domain resource pool carries only one data
  • the SA information of the data may include T- The RPT and the transmission times indication information
  • the transmitting end or the receiving end may determine, in the time domain resource pool, a subframe that can be used for transmitting data according to the bit table corresponding to the T-RPT, and use the transmission frequency indication information in the subframe that can be used for transmitting data.
  • the sender acquires SA information of data currently to be transmitted.
  • the sender acquires a bit table corresponding to the T-RPT, and determines, according to the bit table, at least one subframe that can be used for transmitting data in the time domain resource pool.
  • the transmitting end determines, according to the transmission quantity indication information, a subframe for transmitting data in a subframe that is available for transmitting data.
  • the transmitting end transmits data to the receiving end by using each subframe for transmitting data.
  • the receiving end acquires SA information of the data.
  • the receiving end acquires a bit table corresponding to the T-RPT, and determines, according to the bit table, at least one subframe that can be used for transmitting data in the time domain resource pool.
  • the receiving end receives data transmitted by the transmitting end in a time domain location where the subframe for transmitting data is located.
  • the transmitting end acquires a bit table corresponding to the T-RPT, and determines at least one subframe that can be used for transmitting data in the time domain resource pool according to the bit table, and the information is available according to the number of transmission times. Determining a subframe for transmitting data in a subframe for transmitting data, transmitting data to the receiving end through each subframe for transmitting data, and the receiving end acquires a bit table corresponding to the T-RPT, and is in the time domain resource according to the bit table.
  • Determining at least one subframe that can be used for transmitting data in the pool determining, according to the number of transmission indication information, a subframe for transmitting data in a subframe that can be used for transmitting data, and receiving at a time domain location where the subframe for transmitting data is located.
  • the data transmitted by the transmitting end can change the number of data transmissions according to the number of transmission times indication information, thereby improving resource utilization.
  • FIG. 8 is a schematic flowchart of a data transmission method according to another embodiment of the present invention.
  • a time domain resource pool can carry at least two data, and the SA information of each data is the same.
  • the SA information may include a T-RPT and a transmission number indication information, and the sender or the receiver may determine, in the time domain resource pool, a subframe that can be used for transmitting data according to the bit table corresponding to the T-RPT, and the information is available according to the number of transmission times.
  • the sender acquires SA information of at least two data that is currently required to be transmitted.
  • the sender acquires a bit table corresponding to the T-RPT, and determines at least one subframe that can be used for transmitting data in the time domain resource pool according to the bit table.
  • the transmitting end determines, according to the transmission quantity indication information, at least two subframe sets in a subframe that is available for transmitting data, where each subframe set includes at least one subframe for transmitting data.
  • the transmitting end transmits each data to the receiving end by using a subframe for transmitting data in each subframe set.
  • the receiving end acquires SA information of each data.
  • the receiving end acquires a bit table corresponding to the T-RPT, and determines at least one subframe that can be used for transmitting data in the time domain resource pool according to the bit table.
  • the receiving end determines, according to the transmission quantity indication information, at least two subframe sets in a subframe that is available for transmitting data, where each subframe set includes at least one subframe for transmitting data.
  • the receiving end receives each data transmitted by the transmitting end in a time domain location where the subframe for transmitting data in each subframe set is located.
  • the transmitting end acquires a bit table corresponding to the T-RPT, and determines at least one subframe that can be used for transmitting data in the time domain resource pool according to the bit table, and the information is available according to the number of transmission times. Determining at least two subframe sets in the subframe for transmitting data, each subframe set includes at least one subframe for transmitting data, and transmitting each data to the receiving end through the subframe for transmitting data in each subframe, and receiving The terminal obtains a bit table corresponding to the T-RPT, and determines at least one subframe that can be used for transmitting data in the time domain resource pool according to the bit table, and is used to transmit data according to the number of transmission times indication information.
  • each subframe set includes a subframe for transmitting data, and receiving, in a time domain position of the subframe for transmitting data in each subframe set, each data transmitted by the transmitting end,
  • the number of transmissions of data can be changed according to the number of transmission indications to improve resource utilization.
  • FIG. 9 is a schematic structural diagram of a data transmission apparatus according to an embodiment of the present invention.
  • the data transmission apparatus provided by the embodiment of the present invention can be used to implement the data transmission introduced by the present invention in conjunction with FIG. 3 to FIG. Some or all of the processes in the method embodiments.
  • the data transmission apparatus in the embodiment of the present invention may include at least an allocation information acquisition unit 901, a sub-resource pool determination unit 902, a subframe determination unit 903, and a data transmission unit 904, where:
  • the allocation information obtaining unit 901 is configured to acquire SA information of data currently needed to be transmitted, and the SA information is used to indicate a time domain location in the time domain resource pool that can be used to carry data.
  • the sub-resource pool determining unit 902 is configured to determine, in the time domain resource pool, at least one sub-resource pool that can be used for transmitting data according to the SA information.
  • the subframe determining unit 903 is configured to determine, according to the SA information, at least one subframe that is available for transmitting data in each of the sub-resource pools available for transmitting data.
  • the data transmission unit 904 is configured to transmit data through at least one subframe that can be used to transmit data.
  • the SA information may include sub-pool indication information, where the sub-pool indication information is used to indicate a sub-resource pool in the time-domain resource pool that can be used for transmitting data, and the sub-resource pool determining unit 902 is configured to use the sub-pool. Instructing information to determine at least one child resource pool available for transmitting data in the time domain resource pool.
  • the SA information may further include a T-RPT, and the subframe determining unit 903 is specifically configured to:
  • bit table corresponding to the T-RPT
  • the bit table is used to indicate a subframe in each of the sub-resource pools available for transmitting the data, which is used to transmit the data.
  • At least one subframe available for transmitting data is determined in each of the sub-resource pools available for transmitting data.
  • the SA information may include a T-RPT, and the sub-resource pool determining unit 902 is specifically configured to:
  • bit table corresponding to the T-RPT, and the bit table is used to indicate a sub-resource pool in the time domain resource pool that can be used for transmitting data.
  • At least one sub-resource pool available for transmitting data is determined in the time domain resource pool.
  • the SA information may further include subframe indication information, where the subframe indication information is used to indicate a subframe that is available for transmitting data in each of the sub-resource pools that can be used for transmitting data, and the subframe determining unit 903 is configured to use the sub-frame.
  • the frame indication information determines at least one subframe available for transmitting data in each of the sub-resource pools available for transmitting data.
  • the resource pool dividing unit 905 is configured to: according to the SA information, before the at least one child resource pool that can be used for transmitting data is determined in the time domain resource pool, divide the time domain resource pool into at least one according to the SA information.
  • the resource pool dividing unit 905 is specifically configured to:
  • the number of sub-frames in each sub-resource pool is obtained by dividing the length of the time-domain resource pool by the number of sub-resource pools.
  • the time domain resource pool is divided according to the number of sub-resource pools and the number of sub-frames in each sub-resource pool.
  • the resource pool dividing unit 905 is specifically configured to:
  • the length of the bit table is determined as the number of subframes in each sub-resource pool.
  • the time domain resource pool is divided according to the number of sub-resource pools and the number of sub-frames in each sub-resource pool.
  • the resource pool dividing unit 905 is specifically configured to:
  • the number of subframes in each sub-resource pool is determined according to the subframe indication information.
  • the allocation information acquisition unit 901 acquires SA information of data currently required to be transmitted, and the sub-resource pool determination unit 902 determines at least one sub-transferable data in the time domain resource pool according to the SA information.
  • the resource pool, the subframe determining unit 903 determines at least one subframe available for transmitting data in each of the sub-resource pools available for transmitting data according to the SA information, and the data transmission unit 904 transmits the data through at least one subframe that can be used for transmitting data. It can flexibly change the number of data transmissions and improve resource utilization.
  • the first subframe determining unit 1003 is configured to determine, in the time domain resource pool, a subframe that can be used for transmitting data according to the bit table.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un appareil de transmission de données, ainsi qu'un terminal. Le procédé consiste : à acquérir des informations d'affectation de planification concernant des données ayant actuellement besoin d'être transmises, les informations d'affectation de planification étant utilisées pour indiquer un emplacement de domaine temporel destiné à être utilisé pour porter des données dans un groupe de ressources de domaine temporel ; selon les informations d'affectation de planification, à déterminer au moins un sous-groupe de ressources destiné à être utilisé dans la transmission de données dans le groupe de ressources de domaine temporel ; selon les informations d'affectation de planification, à déterminer au moins une sous-trame destinée à être utilisée dans la transmission de données dans l'ensemble des sous-groupes de ressources destinés à être utilisés dans la transmission de données ; et à transmettre les données au moyen desdites sous-trames destinées à être utilisées dans la transmission de données. Par adoption des modes de réalisation de la présente invention, le nombre de transmissions de données peut être changé de manière flexible, et le taux d'utilisation de ressources peut être amélioré.
PCT/CN2015/095716 2015-11-26 2015-11-26 Procédé et appareil de transmission de données, et terminal WO2017088155A1 (fr)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103843444A (zh) * 2011-05-25 2014-06-04 美国博通公司 用于d2d通信的资源分配
US20140328329A1 (en) * 2013-05-01 2014-11-06 Samsung Electronics Co., Ltd. Methods and apparatus for device-to-device communications system
CN104202740A (zh) * 2014-05-08 2014-12-10 中兴通讯股份有限公司 通信数据发送方法、装置及用户设备
CN105101268A (zh) * 2014-05-08 2015-11-25 中兴通讯股份有限公司 一种设备到设备通信的监听方法及装置
CN105101430A (zh) * 2014-05-08 2015-11-25 中兴通讯股份有限公司 D2d资源的配置、分配方法及装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103843444A (zh) * 2011-05-25 2014-06-04 美国博通公司 用于d2d通信的资源分配
US20140328329A1 (en) * 2013-05-01 2014-11-06 Samsung Electronics Co., Ltd. Methods and apparatus for device-to-device communications system
CN104202740A (zh) * 2014-05-08 2014-12-10 中兴通讯股份有限公司 通信数据发送方法、装置及用户设备
CN105101268A (zh) * 2014-05-08 2015-11-25 中兴通讯股份有限公司 一种设备到设备通信的监听方法及装置
CN105101430A (zh) * 2014-05-08 2015-11-25 中兴通讯股份有限公司 D2d资源的配置、分配方法及装置

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