WO2018130081A1 - Procédé et dispositif de transmission de données, et terminal - Google Patents

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

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Publication number
WO2018130081A1
WO2018130081A1 PCT/CN2017/119592 CN2017119592W WO2018130081A1 WO 2018130081 A1 WO2018130081 A1 WO 2018130081A1 CN 2017119592 W CN2017119592 W CN 2017119592W WO 2018130081 A1 WO2018130081 A1 WO 2018130081A1
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WO
WIPO (PCT)
Prior art keywords
resource
uplink data
information
transmitting
unlicensed uplink
Prior art date
Application number
PCT/CN2017/119592
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English (en)
Chinese (zh)
Inventor
牛丽
吴昱民
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中兴通讯股份有限公司
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Publication of WO2018130081A1 publication Critical patent/WO2018130081A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance

Definitions

  • the present disclosure relates to the field of communications, for example, to a data transmission method and apparatus, and a terminal.
  • the Long Term Evolution consists of three devices: User Equipment (UE), Core Network (CN), and Evolved Node B (eNB).
  • UE User Equipment
  • CN Core Network
  • eNB Evolved Node B
  • MME Mobility Management Entity
  • SGW Serving GetWay
  • the interface between the UE and the eNB is Uu
  • the interface between the eNB and the core network is S1, as shown in FIG. 1 .
  • the UE needs to access the eNB to communicate with the eNB, that is, initiate a random access procedure. As shown in Figure 2, there are the following four steps.
  • Step 1 The UE learns the available preamble sequence code for random access and the time-frequency position of the transmission preamble sequence through system information or radio resource control (Radio Resource Control), and then randomly selects among the available resources.
  • the preamble sequence and the time-frequency location of the transmit preamble sequence are transmitted to the eNB.
  • Step 2 The eNB estimates the Routing Area Radio Network Temporary Identifier (RA-RNTI) that the UE may use by using the time-frequency location of the random access preamble sequence, and decodes the preamble sequence by using the RA-RNTI. After successfully decoding the preamble sequence, the UE is replied to the random access response, and the response carries information such as the uplink grant.
  • RA-RNTI Routing Area Radio Network Temporary Identifier
  • Step 3 The UE sends uplink data on the uplink authorized resource, and carries information such as the identifier of the UE.
  • Step 4 The eNB parses the uplink data on the uplink authorized resource, confirms the UE, resolves the conflict, and sends the contention resolution identifier to the UE.
  • the UE may send data to the eNB without authorization.
  • the process is shown in Figure 3. There are two steps.
  • Step 1 The UE selects a resource and sends uplink data in an unlicensed resource.
  • Step 2 The eNB parses out the response or data.
  • the UE sends the uplink sequence while transmitting the uplink data; the other is that the UE only sends the uplink data.
  • the resource for transmitting the unlicensed uplink data is a non-orthogonal technology, which is different from the traditional physical uplink shared channel (PUSCH) resource.
  • PUSCH physical uplink shared channel
  • the embodiment provides a data sending method, device, and terminal, to solve the problem of how the terminal uses the unlicensed uplink resource in the related art.
  • a data sending method includes: acquiring unlicensed uplink available resource information; selecting, according to the obtained uplink available resource information, resource information for transmitting unlicensed uplink data; and transmitting the data on the selected resource information.
  • the unlicensed uplink available resource information is obtained by using at least one of the following: obtaining according to the agreement, acquiring from the system information, acquiring from the radio resource control RRC information, and obtaining the physical downlink control channel PDCCH information. .
  • the resource information for sending the unlicensed uplink data includes at least one of: transmitting a time domain, a frequency domain or a spatial domain resource of the unlicensed uplink data, a codeword, a sequence, an interleaving or mapping format, and demodulating the reference signal. , modulation and coding scheme MCS, data transmission mode, transport block size TBS, radio network temporary identifier RNTI, power control parameters, hybrid automatic repeat request HARQ, redundancy version, fixed occupied resource block RB number, maximum occupant RB
  • MCS modulation and coding scheme
  • data transmission mode transport block size
  • TBS transport block size
  • radio network temporary identifier RNTI radio network temporary identifier RNTI
  • power control parameters hybrid automatic repeat request HARQ
  • redundancy version fixed occupied resource block RB number
  • maximum occupant RB The number of preamble resources of the preamble sequence is transmitted, and the time domain, frequency domain or spatial domain resource of the preamble sequence is transmitted.
  • the selecting the resource information for sending the unlicensed uplink data comprises: randomly selecting the resource information for sending the unlicensed uplink data; or selecting the resource information for sending the unlicensed uplink data according to the resource for sending the preamble.
  • the selecting the resource information for sending the unlicensed uplink data includes: generating scheduling information according to the channel quality or the service type; and selecting, according to the scheduling information, resource information for sending the unlicensed uplink data.
  • the scheduling information includes at least one of: a resource block RB number for transmitting unlicensed uplink data, a codeword, a sequence, an interleaving or mapping format, a demodulation reference signal, a modulation and coding scheme MCS, and a data transmission mode. , transport block size TBS, radio network temporary identifier RNTI, power control parameters, HARQ, redundancy version, preamble information of the transmit preamble sequence.
  • the resource used by the scheduling information includes at least one of the following: a time domain or a frequency domain location, a format adopted, a codeword, a sequence, an interleaving or mapping format, a demodulation reference signal, and a modulation and coding scheme.
  • the usage resource of the scheduling information is obtained by acquiring the information according to the agreement, acquiring the information from the system, acquiring the RRC information from the radio resource control, and acquiring the physical downlink control channel PDCCH.
  • the method before the sending the data on the selected resource information, the method further includes: generating, according to the time-frequency location of sending the unlicensed uplink data, a radio network temporary identifier RNTI that scrambles the unlicensed uplink data, according to the generating The RNTI scrambles the unlicensed uplink data; or the routing area radio network temporary identifier RA-RNTI generated according to the transmitting preamble scrambles the unlicensed uplink data.
  • a data sending apparatus comprising: an obtaining module, configured to acquire unlicensed uplink available resource information; and a selecting module, configured to select, according to the obtained uplink available resource information, resource information for transmitting unlicensed uplink data; and a sending module, Set to send the data on the selected resource information.
  • the unlicensed uplink available resource information is obtained by using at least one of the following: obtaining according to the agreement, acquiring from the system information, acquiring from the radio resource control RRC information, and obtaining the physical downlink control channel PDCCH information. .
  • the resource information for sending the unlicensed uplink data includes at least one of: transmitting a time domain, a frequency domain or a spatial domain resource of the unlicensed uplink data, a codeword, a sequence, an interleaving or mapping format, and demodulating the reference signal. , modulation and coding scheme MCS, data transmission mode, transport block size TBS, radio network temporary identifier RNTI, power control parameters, hybrid automatic repeat request HARQ, redundancy version, fixed occupied resource block RB number, maximum occupant RB
  • MCS modulation and coding scheme
  • data transmission mode transport block size
  • TBS transport block size
  • radio network temporary identifier RNTI radio network temporary identifier RNTI
  • power control parameters hybrid automatic repeat request HARQ
  • redundancy version fixed occupied resource block RB number
  • maximum occupant RB The number of preamble resources of the preamble sequence is transmitted, and the time domain, frequency domain or spatial domain resource of the preamble sequence is transmitted.
  • the selecting module is further configured to randomly select resource information for transmitting the unlicensed uplink data; or, according to the resource for sending the preamble, select the resource information for sending the unlicensed uplink data.
  • the selecting module is further configured to generate scheduling information according to the channel quality or the service type; and select, according to the scheduling information, resource information for sending the unlicensed uplink data.
  • the scheduling information includes at least one of: a resource block RB number for transmitting unlicensed uplink data, a codeword, a sequence, an interleaving or mapping format, a demodulation reference signal, a modulation and coding scheme MCS, and a data transmission mode. , transport block size TBS, radio network temporary identifier RNTI, power control parameters, HARQ, redundancy version, preamble information of the transmit preamble sequence.
  • the resource used by the scheduling information includes at least one of the following: a time domain or a frequency domain location, a format adopted, a codeword, a sequence, an interleaving or mapping format, a demodulation reference signal, and a modulation and coding scheme.
  • the usage resource of the scheduling information is obtained by acquiring the information according to the agreement, acquiring the information from the system, acquiring the RRC information from the radio resource control, and acquiring the physical downlink control channel PDCCH.
  • the foregoing apparatus further includes:
  • the first scrambling module is configured to generate a radio network temporary identifier RNTI that scrambles the unlicensed uplink data according to the time-frequency position of the unlicensed uplink data, and scrambles the unlicensed uplink data according to the generated RNTI; or
  • the scrambling module is configured to scramble the unlicensed uplink data according to the routing area radio network temporary identifier RA-RNTI generated by the sending preamble.
  • a terminal comprising the apparatus of any of the above embodiments.
  • a storage medium configured to store program code for performing the following steps: acquiring unlicensed uplink available resource information; selecting, according to the obtained uplink available resource information, resource information for transmitting unlicensed uplink data; The data is sent on the information.
  • the storage medium is further configured to store program code for performing the following steps: obtaining the unlicensed uplink available resource information by at least one of: obtaining according to the agreement, acquiring from the system information, and controlling the RRC from the radio resource.
  • the information obtained in the present is obtained from the physical downlink control channel PDCCH.
  • the storage medium is further configured to store program code for performing the following steps: the resource information for transmitting the unlicensed uplink data comprises at least one of: a time domain, a frequency domain or a spatial domain resource for transmitting the unlicensed uplink data. , codeword, sequence, interleave or mapping format, demodulation reference signal, modulation and coding scheme MCS, data transmission mode, transport block size TBS, radio network temporary identifier RNTI, power control parameters, hybrid automatic repeat request HARQ, redundancy version The number of RBs of the resource block that is fixedly occupied, the maximum number of RBs that can be occupied, the preamble resource of the preamble sequence, and the time domain, frequency domain, or spatial domain resource of the preamble sequence.
  • the storage medium is further configured to store program code for performing the following steps: selecting the resource information for sending the unlicensed uplink data comprises: randomly selecting resource information for sending the unlicensed uplink data; or, according to the sending the preamble Resource, select the resource information for sending unauthorized uplink data.
  • the storage medium is further configured to store program code for performing the following steps: selecting the resource information for sending the unlicensed uplink data comprises: generating scheduling information according to channel quality or service type; and selecting to send the non-distribution according to the scheduling information.
  • selecting the resource information for sending the unlicensed uplink data comprises: generating scheduling information according to channel quality or service type; and selecting to send the non-distribution according to the scheduling information.
  • the storage medium is further configured to store program code for performing the following steps: the scheduling information includes at least one of: transmitting resource block RBs occupied by unlicensed uplink data, codeword, sequence, interleaving or mapping Format, demodulation reference signal, modulation coding scheme MCS, data transmission mode, transport block size TBS, radio network temporary identifier RNTI, power control parameter, HARQ, redundancy version, preamble information of the preamble sequence.
  • the scheduling information includes at least one of: transmitting resource block RBs occupied by unlicensed uplink data, codeword, sequence, interleaving or mapping Format, demodulation reference signal, modulation coding scheme MCS, data transmission mode, transport block size TBS, radio network temporary identifier RNTI, power control parameter, HARQ, redundancy version, preamble information of the preamble sequence.
  • the storage medium is further configured to store program code for performing the following steps: the resource used by the scheduling information comprises at least one of: a time domain or a frequency domain location, a format adopted, a codeword, a sequence, an interlace or Mapping format, demodulation reference signal, modulation coding scheme.
  • the storage medium is further configured to store program code for performing the following steps: the usage resource of the scheduling information is obtained by acquiring according to the agreement, acquiring from the system information, and obtaining the RRC information from the radio resource control. Obtained from the physical downlink control channel PDCCH.
  • the storage medium is further configured to store program code for performing the following steps: before transmitting the data on the selected resource, further comprising: generating a scrambled unauthorized according to a time-frequency location of sending the unlicensed uplink data.
  • the radio network temporarily identifies the RNTI of the uplink data, and scrambles the unlicensed uplink data according to the generated RNTI; or scrambles the unlicensed uplink data according to the routing area radio network temporary identifier RA-RNTI generated by the sending preamble.
  • a mobile terminal comprising one or more processors, a memory, and one or more programs, the one or more programs being stored in a memory, the data being executed when executed by one or more processors Send method.
  • a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions that, when executed by a computer, cause the computer to execute Any of the above data transmission methods.
  • the data sending method and apparatus provided by the present disclosure can select the resource information of the unlicensed uplink data and the data of the selected resource information in the obtained uplink available resource information, so that the terminal can be used in the related art.
  • FIG. 4 is a block diagram showing the hardware structure of a mobile terminal of a data transmitting method according to this embodiment
  • FIG. 5 is a flowchart of a data transmitting method according to the present embodiment
  • FIG. 6 is a flowchart of unauthorized uplink transmission of a transmission preamble according to the present embodiment
  • Figure 7 is a block diagram showing the structure of a data transmitting apparatus according to the present embodiment.
  • Figure 8 is a block diagram showing an alternative structure of a data transmitting apparatus according to the present embodiment.
  • Fig. 9 is a block diagram showing the structure of a terminal according to the present embodiment.
  • FIG. 4 is a hardware block diagram of a mobile terminal of a data transmitting method according to the present embodiment.
  • the mobile terminal 40 may include one or more (only one shown) processor 402 (the processor 402 may include a processing device such as a microprocessor MCU or a programmable logic device FPGA), for A memory 404 that stores data, and a transmission device 406 for communication functions.
  • the structure shown in Figure 4 is merely illustrative.
  • the mobile terminal 40 may also include more or fewer components than those shown in FIG. 4, or have a different configuration than that shown in FIG.
  • the memory 404 can be used to store software programs of the application software and modules, such as program instructions or modules corresponding to the data transmission method in the embodiment, and the processor 402 executes various functions by running software programs and modules stored in the memory 404. Application and data processing, that is, the above method is implemented.
  • Memory 404 can include high speed random access memory and can also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memory.
  • memory 404 can further include memory remotely located relative to processor 402, which can be connected to mobile terminal 40 over a network. Examples of such networks include the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • Transmission device 406 is for receiving or transmitting data via a network.
  • the network instance described above may include a wireless network provided by a communication provider of the mobile terminal 40.
  • transmission device 406 includes a Network Interface Controller (NIC) that can be connected to other network devices through a base station to communicate with the Internet.
  • NIC Network Interface Controller
  • transmission device 406 can be a Radio Frequency (RF) module for communicating wirelessly with the Internet.
  • RF Radio Frequency
  • FIG. 5 is a flowchart of a data transmission method according to the embodiment. As shown in FIG. 5, the flow includes the following steps.
  • step 502 unauthorized uplink available resource information is obtained.
  • step 504 the resource information for transmitting the unlicensed uplink data is selected according to the obtained uplink available resource information.
  • step 506 data is transmitted on the selected resource information.
  • the resource information for transmitting the unlicensed uplink data is selected in the acquired uplink available resource information, and the data is transmitted on the selected resource information. Therefore, the problem of how the terminal uses the unlicensed uplink resource in the related art can be solved, and the base station can improve the accuracy of decoding the uplink data, and can reduce the collision probability of the user terminal transmitting the uplink data.
  • the unlicensed uplink available resource information is obtained by using at least one of the following: obtaining according to the agreement, acquiring from the system information, acquiring from the radio resource control RRC, and receiving the physical downlink control channel (Physical Downlink Control Channel, PDCCH) ) Letter to get in today.
  • the acquisition according to the agreement can be obtained according to the agreement.
  • the resource information for sending the unlicensed uplink data includes at least one of: transmitting a time domain, a frequency domain or a spatial domain resource of the unlicensed uplink data, a codeword, a sequence, an interleaving or mapping format, demodulating the reference signal, and modulating Modulation and Coding Scheme (MCS), data transmission mode, Transport Block Size (TBS), radio network temporary identifier RNTI, power control parameters, Hybrid Automatic Repeat Request (HARQ), The redundancy version, the number of resource blocks (RBs) that are fixedly occupied, the maximum number of RBs that can be occupied, the preamble resources of the preamble sequence, and the time domain, frequency domain, or spatial domain resources of the preamble sequence.
  • MCS Modulation and Coding Scheme
  • TSS Transport Block Size
  • HARQ Hybrid Automatic Repeat Request
  • selecting the resource information for transmitting the unlicensed uplink data may include randomly selecting the resource information for sending the non-authorized uplink data.
  • the probability that different UEs send uplink data collision collisions can be reduced.
  • the resource information for transmitting the unlicensed uplink data may be selected to select the resource information for transmitting the unlicensed uplink data according to the resource for transmitting the preamble.
  • selecting the resource information for sending the unlicensed uplink data includes: generating scheduling information according to the channel quality or the service type; and selecting, according to the scheduling information, resource information for sending the unlicensed uplink data.
  • the scheduling information includes at least one of the following: the number of resource blocks RB occupied by the unlicensed uplink data, the codeword, the sequence, the interleaving or mapping format, the demodulation reference signal, the modulation and coding scheme MCS, the data transmission mode, and the TBS
  • the resources used by the scheduling information include at least one of the following: a time domain or a frequency domain location, a format adopted, a codeword, a sequence, an interleaving or mapping format, a demodulation reference signal, and a modulation and coding scheme.
  • the usage resource of the scheduling information is obtained by acquiring the information according to the agreement, obtaining the information from the system information, obtaining the RRC information from the radio resource control, and acquiring the physical downlink control channel PDCCH.
  • the data sending method provided in this embodiment further includes: generating, according to the time-frequency position of sending the unlicensed uplink data, a radio network temporary identifier RNTI that scrambles the unlicensed uplink data, according to The generated RNTI scrambles the unlicensed uplink data; or the routing area radio network temporary identifier RA-RNTI generated according to the transmitting preamble scrambles the unauthorized uplink data.
  • the difficulty and workload of the blind detection of the base station can be reduced.
  • the unlicensed uplink resource in order to distinguish the unlicensed uplink resource from the traditional authorized uplink resource, the unlicensed uplink resource separately occupies a time-frequency resource, which is specifically used for unauthorized uplink transmission.
  • the non-authorized uplink resources include not only time domain, frequency domain or spatial domain resources for transmitting unlicensed uplink data, but also preamble resources for transmitting the preamble sequence and time domain, frequency domain or spatial domain resources for transmitting the preamble sequence.
  • the UE in order to facilitate the base station to successfully parse the unlicensed uplink data sent by the UE, the UE also needs to know the codeword, sequence, interleaving or mapping format used for transmitting the uplink data packet, demodulation reference signal, modulation and coding scheme MCS, data transmission mode, TBS. RNTI, power control parameters, HARQ, redundancy version, etc., and even the number of RBs occupied by the uplink packet, including the number of RBs that are fixedly occupied and the maximum number of RBs that can be occupied.
  • the base station and the UE can agree on this information.
  • the base station and the UE pre-define resources for the UE to send unlicensed uplink data, including at least one of: time domain, frequency domain or spatial domain resource (pool), codeword, sequence, interleaving or mapping for transmitting unlicensed uplink data. Format, demodulation reference signal, modulation and coding scheme MCS, data transmission mode, TBS, RNTI, power control parameters, HARQ, redundancy version, etc., and the number of fixed RBs, the maximum number of RBs that can be occupied, and possibly It includes a preamble resource that transmits a preamble sequence and a time domain, frequency domain, or spatial domain resource (pool).
  • the base station receives and parses the unlicensed uplink data sent by the UE according to the rules according to the agreement.
  • the base station can inform and configure these proprietary resources of the UE, through system information broadcast, or through a proprietary RRC message.
  • the base station transmits the resources of the unlicensed uplink data through the system information broadcast UE within the coverage.
  • the base station may also send, by using an RRC signaling configuration, a resource for the unlicensed uplink data, such as RRCConnectionReconfiguration, RRCConnectionRelease, RRCConnectionSetup, RRCConnectionReestablishment, or a newly defined message.
  • the UE transmitting the unlicensed uplink data includes at least one of the following: a time domain, a frequency domain or a spatial domain resource (pool), a codeword, a sequence, an interleaving or mapping format, a demodulation reference signal, and a modulation code for transmitting unlicensed uplink data.
  • the manner in which the base station can notify or configure the UE may also be through a scheduling instruction (for example, PDCCH).
  • a scheduling instruction for example, PDCCH
  • system information broadcast or proprietary RRC information may instruct the UE to transmit the time/frequency/empty resources of the unlicensed uplink data
  • the PDCCH may indicate the MCS and the like information adopted by the UE for the characteristics of the UE.
  • the system information broadcast or the proprietary RRC information indicates that the UE sends the resources of the unlicensed uplink data, and at least includes one of the following: a time domain, a frequency domain or a spatial domain resource (pool) for transmitting the unlicensed uplink data, and a fixed occupation.
  • the number of RBs and the maximum number of RBs that can be occupied may also include preamble resources for transmitting the preamble sequence and time domain, frequency domain or spatial domain resources (pool).
  • the base station can allocate resources for transmitting unlicensed uplink data to the UE according to the characteristics of the channel quality and the service type of the UE, including: transmitting time domain, frequency domain or spatial domain resource, codeword, sequence of the unlicensed uplink data, Interleaving or mapping format, demodulation reference signal, modulation and coding scheme MCS, data transmission mode, TBS, RNTI, power control parameters, HARQ, redundancy version, etc., and the number of fixed RBs, the maximum number of RBs that can be occupied It may also include preamble resources for transmitting the preamble sequence as well as time domain, frequency domain or spatial domain resources.
  • the UE may also send unauthorized uplink data in a self-scheduling manner.
  • the base station sends the resources available for the unlicensed uplink data through the system information broadcast, including at least one of the following: a time domain, a frequency domain or a spatial domain resource (pool) for transmitting the unlicensed uplink data, and a fixed number of RBs and a maximum number of RBs.
  • the number of RBs that can be occupied may also include a preamble resource that transmits a preamble sequence, and a time domain, a frequency domain, or a spatial domain resource (pool).
  • the UE may select a resource for sending unlicensed uplink data for itself according to its own channel quality and service type characteristics, and at least one of the following: the number of RBs, codewords, sequences, interleaving or mappings used for transmitting unlicensed uplink data. Format, demodulation reference signal, modulation and coding scheme MCS, data transmission mode, TBS, RNTI, power control parameters, HARQ, redundancy version, etc., may also include preamble information for transmitting the preamble sequence. The information may generate an uplink scheduling information, and the UE sends the uplink scheduling information together with the uplink data to the base station.
  • the uplink scheduling information may be sent to the base station in a predefined form, and the base station and the UE predefine the resources of the uplink scheduling information.
  • the base station allocates and allocates resources for scheduling information of the UE to the uplink.
  • the resource allocated by the base station and configured for the uplink scheduling information of the UE includes at least one of the following: a time-frequency domain location, a adopted format, a codeword, a sequence, an interleaving or mapping format, a demodulation reference signal, a modulation and coding scheme, and the like.
  • the UE may select the resource for sending the uplink data in the time domain, the frequency domain, or the spatial domain resource pool.
  • the UE may randomly select resources for transmitting uplink data.
  • the base station informs the UE of the time-frequency resource pool of the unlicensed uplink data by using the system information or the RRC information.
  • the time-frequency location is randomly selected in the unlicensed uplink time-frequency resource pool.
  • the base station detects the uplink data of the UE in the time-frequency resource pool of the unlicensed uplink data.
  • the transmission of the preamble can be selected and transmitted according to the current protocol.
  • the UE needs to scramble the RNTI by sending the unlicensed uplink data.
  • the RNTI of the scrambled uplink data may be generated according to the time-frequency position of the uplink data. For example, an RNTI is generated according to the selected time-frequency location, and the uplink data is scrambled by the RNTI.
  • the base station will descramble the unlicensed uplink data sent by the UE according to the corresponding RNTI.
  • the first step of the scheme for unlicensed uplink transmission is to simultaneously send the preamble sequence and the uplink data, as shown in FIG. 6.
  • the RNTI that scrambles the unlicensed uplink data may adopt the RNTI of the scrambled preamble sequence.
  • the RA-RNTI of the scrambled preamble sequence is generated according to the time-frequency resource of the transmit preamble sequence.
  • the RNTI that scrambles the unlicensed uplink data sent by the UE may adopt the RA-RNTI.
  • the base station decodes the preamble, and then uses the decoded RA-RNTI to descramble the unlicensed uplink data sent by the UE.
  • the method according to the above embodiment may be implemented by means of software plus a necessary general hardware platform, or may be implemented by hardware.
  • the present disclosure may be embodied in the form of a software product stored in a storage medium (such as a ROM/RAM, a magnetic disk, or an optical disk), including a plurality of instructions for causing a terminal device (which may be a mobile phone, a computer, The server, or network device, etc.) performs the method described in this embodiment.
  • a data transmitting device and a terminal are provided, and the device is used to implement the foregoing embodiments and implementation manners.
  • the term "module" can implement a combination of software and hardware for a predetermined function.
  • Fig. 7 is a block diagram showing the structure of a data transmitting apparatus according to the present embodiment. As shown in Fig. 7, the apparatus includes the following modules.
  • the obtaining module 72 is configured to obtain unauthorized uplink available resource information.
  • the selecting module 74 is connected to the obtaining module 72, and is configured to select resource information for sending unlicensed uplink data according to the obtained uplink available resource information.
  • the sending module 76 is coupled to the selection module 74 and configured to transmit data on the selected resource.
  • the unlicensed uplink available resource information is obtained by using at least one of the following: obtaining according to the agreement, acquiring from the system information, acquiring from the radio resource control RRC, and obtaining from the physical downlink control channel PDCCH.
  • the resource information for sending the unlicensed uplink data includes at least one of: transmitting a time domain, a frequency domain or a spatial domain resource of the unlicensed uplink data, a codeword, a sequence, an interleaving or mapping format, demodulating the reference signal, and modulating Coding scheme MCS, data transmission mode, TBS, radio network temporary identification RNTI, power control parameters, hybrid automatic repeat request HARQ, redundancy version, fixed occupied resource block RB number, maximum RB number that can be occupied, transmission preamble The preamble resource of the sequence, transmitting the time domain, frequency domain or spatial domain resource of the preamble sequence.
  • the selecting module 74 is further configured to randomly select resource information for transmitting the unlicensed uplink data; or, according to the resource for sending the preamble, select the resource information for sending the unlicensed uplink data.
  • the selecting module 74 is further configured to generate scheduling information according to the channel quality or the service type; and select, according to the scheduling information, the resource information that sends the unlicensed uplink data.
  • the scheduling information includes at least one of the following: the number of resource blocks RB occupied by the unlicensed uplink data, the codeword, the sequence, the interleaving or mapping format, the demodulation reference signal, the modulation and coding scheme MCS, the data transmission mode, and the TBS
  • the resources used by the scheduling information include at least one of the following: a time domain or a frequency domain location, a format adopted, a codeword, a sequence, an interleaving or mapping format, a demodulation reference signal, and a modulation and coding scheme.
  • the usage resource of the scheduling information is obtained by acquiring the information according to the agreement, obtaining the information from the system information, obtaining the RRC information from the radio resource control, and acquiring the physical downlink control channel PDCCH.
  • FIG. 8 is a block diagram showing an optional structure of a data transmitting apparatus according to the present embodiment. As shown in FIG. 8, the apparatus includes the following modules in addition to all the modules shown in FIG.
  • the first scrambling module 82 is configured to generate a radio network temporary identifier RNTI that scrambles the unlicensed uplink data according to the time-frequency position of the unlicensed uplink data, and scrambles the unlicensed uplink data according to the generated RNTI. or,
  • the second scrambling module 84 is configured to scramble the unlicensed uplink data according to the routing area radio network temporary identifier RA-RNTI generated by the sending preamble.
  • FIG. 9 is a block diagram showing the structure of a terminal according to the present embodiment. As shown in FIG. 9, the terminal includes the data transmitting apparatus 90 of any of the above embodiments.
  • the foregoing multiple modules may be implemented by software or hardware.
  • the foregoing modules may be implemented in the following manner: or the above modules are respectively located in different processors in any combination. .
  • This embodiment also provides a storage medium.
  • the above storage medium may be set to store program code for performing the following steps.
  • the storage medium is also arranged to store program code for performing the following steps.
  • S1 Obtain unlicensed uplink available resource information by using at least one of the following: obtaining according to the agreement, obtaining from the system information, acquiring from the radio resource control RRC information, and acquiring from the physical downlink control channel PDCCH.
  • the storage medium is also arranged to store program code for performing the following steps.
  • the resource information for sending the unlicensed uplink data includes at least one of the following: a time domain, a frequency domain or a spatial domain resource for transmitting unlicensed uplink data, a codeword, a sequence, an interleaving or mapping format, a demodulation reference signal, and a modulation and coding scheme.
  • MCS data transmission mode
  • TBS radio network temporary identification RNTI
  • power control parameters hybrid automatic repeat request HARQ
  • redundancy version fixed occupied resource block RB number, maximum RB number that can be occupied
  • transmission preamble sequence A preamble resource that transmits a time domain, a frequency domain, or a spatial domain resource of a preamble sequence.
  • the storage medium is further configured to store program code for performing the following steps: selecting the resource information for transmitting the unlicensed uplink data comprises the following steps.
  • S2 Select, according to the resource that sends the preamble, resource information that sends the unlicensed uplink data.
  • the storage medium is further configured to store program code for performing the following steps: selecting the resource information for transmitting the unlicensed uplink data comprises the following steps.
  • S1 Generate scheduling information according to channel quality or service type.
  • the storage medium is also arranged to store program code for performing the following steps.
  • the scheduling information includes at least one of the following: the number of resource blocks RB occupied by the unlicensed uplink data, the codeword, the sequence, the interleaving or mapping format, the demodulation reference signal, the modulation and coding scheme MCS, the data transmission mode, the TBS, and the wireless
  • the network temporarily identifies the RNTI, the power control parameter, the HARQ, the redundancy version, and the preamble information of the transmission preamble sequence.
  • the storage medium is also arranged to store program code for performing the following steps.
  • the resource used by the scheduling information includes at least one of the following: a time domain or a frequency domain location, a format adopted, a codeword, a sequence, an interleaving or mapping format, a demodulation reference signal, and a modulation and coding scheme.
  • the storage medium is also arranged to store program code for performing the following steps.
  • the usage resource of the scheduling information is obtained by acquiring the information according to the agreement, acquiring the information from the system information, acquiring the RRC information from the radio resource control, and acquiring the physical downlink control channel PDCCH.
  • the storage medium is further arranged to store program code for performing the steps of: before transmitting the data on the selected resource, the following steps are also included.
  • S2 The routing area radio network temporary identifier RA-RNTI generated according to the sending preamble scrambles the unlicensed uplink data.
  • the foregoing storage medium may include: a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk, or a magnetic disk. And other media that can store program code.
  • the processor is configured to: obtain the unlicensed uplink available resource information according to the stored program code in the storage medium; and select, according to the obtained uplink available resource information, the resource information that sends the unlicensed uplink data; Send data on the selected resource.
  • the processor performs, according to the stored program code in the storage medium, acquiring the unlicensed uplink available resource information by using at least one of: obtaining according to the agreement, acquiring from the system information, and obtaining the radio resource.
  • the control RRC information acquisition is obtained from the physical downlink control channel PDCCH.
  • the processor performs, according to the stored program code in the storage medium, that the resource information for transmitting the unlicensed uplink data includes at least one of: transmitting a time domain, a frequency domain, or a space of the unauthorized uplink data.
  • Domain resource codeword, sequence, interleaving or mapping format, demodulation reference signal, modulation and coding scheme MCS, data transmission mode, TBS, radio network temporary identification RNTI, power control, hybrid automatic repeat request HARQ, redundancy version, fixed The number of RBs occupied by the resource block, the maximum number of RBs that can be occupied, the preamble resource of the preamble sequence, and the time domain, frequency domain, or spatial domain resource of the preamble sequence.
  • the processor performs, according to the stored program code in the storage medium, that: selecting the resource information for sending the unlicensed uplink data comprises: randomly selecting the resource information for sending the unlicensed uplink data; or, according to the sending preamble
  • the resource of the code selects the resource information for sending the unlicensed uplink data.
  • the processor performs, according to the stored program code in the storage medium, that: selecting to send the resource information of the unlicensed uplink data includes: generating scheduling information according to the channel quality or the service type; and selecting to send the non-distribution according to the scheduling information.
  • selecting to send the resource information of the unlicensed uplink data includes: generating scheduling information according to the channel quality or the service type; and selecting to send the non-distribution according to the scheduling information.
  • the processor is executed according to the stored program code in the storage medium: the scheduling information includes at least one of the following: sending the number of resource blocks RB occupied by the unlicensed uplink data, the codeword, the sequence, and the interleaving Or mapping format, demodulation reference signal, modulation coding scheme MCS, data transmission mode, TBS, radio network temporary identification RNTI, power control parameter, HARQ, redundancy version, preamble information of the transmission preamble sequence.
  • the processor executes according to the stored program code in the storage medium: the resource used by the scheduling information includes at least one of the following: a time domain or a frequency domain location, a adopted format, a codeword, a sequence, Interleaving or mapping format, demodulating reference signals, modulation coding scheme.
  • the processor executes according to the stored program code in the storage medium: the usage resource of the scheduling information is obtained by acquiring according to the agreement, acquiring from the system information, and controlling the RRC information from the wireless resource. Obtained from the physical downlink control channel PDCCH information.
  • the processor performs, according to the stored program code in the storage medium, before: sending the data on the selected resource, further comprising: generating a scrambled unauthorized according to the time-frequency location of sending the unlicensed uplink data.
  • the radio network of the uplink data temporarily identifies the RNTI, scrambles the unlicensed uplink data according to the generated RNTI, or scrambles the unlicensed uplink data according to the routing area radio network temporary identifier RA-RNTI generated by transmitting the preamble.
  • examples in this embodiment may refer to the examples described in the foregoing embodiments and optional embodiments.
  • the plurality of modules or steps of the present embodiment described above may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices, optionally
  • the program code executable by the computing device can be implemented, such that they can be stored in a storage device for execution by the computing device, and in some cases, the illustrated or described
  • the steps are either made into individual integrated circuit modules, or a plurality of modules or steps are made into a single integrated circuit module.
  • the data transmitting method and apparatus provided by the present disclosure selects resource information for transmitting unlicensed uplink data in the acquired uplink available resource information, and then transmits data on the selected resource information. Therefore, the problem of how the terminal uses the unlicensed uplink resource in the related art can be solved, and the base station can improve the accuracy of decoding the uplink data, and can reduce the collision probability of the user terminal transmitting the uplink data.

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

Abstract

L'invention concerne un procédé et un dispositif de transmission de données, ainsi qu'un terminal. Le procédé consiste à : obtenir des informations de ressource disponible de liaison montante non autorisées ; en fonction des informations de ressource disponible de liaison montante obtenues, sélectionner des informations de ressource afin de transmettre des données de liaison montante non autorisées ; et transmettre des données sur les informations de ressource sélectionnées.
PCT/CN2017/119592 2017-01-10 2017-12-28 Procédé et dispositif de transmission de données, et terminal WO2018130081A1 (fr)

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CN110972327B (zh) * 2018-09-28 2022-03-11 维沃移动通信有限公司 基于非授权频段的信号传输方法和通信设备
EP3858018A4 (fr) * 2018-09-30 2022-06-22 Telefonaktiebolaget LM Ericsson (publ) Procédé et appareil de transmission de liaison montante auto-planifiée
EP3876623B1 (fr) 2018-11-01 2024-10-09 Beijing Xiaomi Mobile Software Co., Ltd. Procédé de transmission d'informations, procédé de réception d'informations, station de base et terminal
CN111278147B (zh) * 2019-01-25 2024-09-13 维沃移动通信有限公司 资源调度方法、终端和网络侧设备
CN111436155B (zh) * 2019-02-21 2021-09-14 维沃移动通信有限公司 数据传输方法和终端设备
CN111756473B (zh) * 2019-03-29 2023-06-23 中国移动通信有限公司研究院 信息传输方法及终端
CN113518390B (zh) * 2020-04-10 2022-09-09 展讯通信（上海）有限公司 上行数据传输方法、终端及可读存储介质
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