WO2022036560A1 - 一种数据传输方法及相关设备 - Google Patents

一种数据传输方法及相关设备 Download PDF

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Publication number
WO2022036560A1
WO2022036560A1 PCT/CN2020/109823 CN2020109823W WO2022036560A1 WO 2022036560 A1 WO2022036560 A1 WO 2022036560A1 CN 2020109823 W CN2020109823 W CN 2020109823W WO 2022036560 A1 WO2022036560 A1 WO 2022036560A1
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Prior art keywords
information
terminal device
dci
ssb
identifier
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PCT/CN2020/109823
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English (en)
French (fr)
Inventor
行双双
徐修强
吴艺群
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华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN202080103266.2A priority Critical patent/CN115943686A/zh
Priority to PCT/CN2020/109823 priority patent/WO2022036560A1/zh
Priority to EP20949772.6A priority patent/EP4199616A4/en
Publication of WO2022036560A1 publication Critical patent/WO2022036560A1/zh
Priority to US18/170,686 priority patent/US20230209486A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the embodiments of the present application relate to the field of communications, and in particular, to a data transmission method and related equipment.
  • the user equipment In wireless communication systems such as long term evolution (LTE) and 5g (5th-generation) new radio (NR), the user equipment (UE) needs to control the radio resource (radio) through random access.
  • Resource control, RRC) idle state or inactive (inactive) state enters the RRC connection state, in order to establish various bearers with the base station, obtain some necessary resources and parameter configurations, and then communicate with the base station.
  • RRC Resource control
  • the way of random access is mainly to obtain uplink synchronization through a four-step random access process based on contention or a two-step random access process, and then perform uplink data transmission.
  • the number of random access preambles available in each cell is limited.
  • the cluster head needs to demodulate the response information, and then send the response information for each cluster member to each cluster member. Therefore, the time delay brought by this access method is very high.
  • the embodiments of the present application provide a data transmission method and related equipment, which can be applied to a clustered random access scenario to reduce the time delay of a terminal device in a random access process.
  • a first aspect of the embodiments of the present application provides a data transmission method.
  • the method includes: a first terminal device sends first information to a second terminal device, where the first information includes synchronization signal block SSB information of the first terminal device and/or The first identifier of the first terminal device.
  • the first terminal device receives response information according to the received downlink control information DCI associated with the SSB information and/or the first identifier from the network device, where the response information corresponds to the first information.
  • the first terminal device can directly receive the response information sent by the network device without forwarding the response information by the second terminal device, thereby reducing the delay of the first terminal device in the random access process.
  • the first terminal device receives the response information according to the received downlink control information DCI associated with the SSB information and/or the first identifier from the network device, so that the first terminal device can know in advance whether to receive or not according to the received DCI
  • the response information scheduled by the DCI that is, the first terminal device can identify whether the PDSCH scheduled by the DCI is its own response information according to the DCI, avoid repeated reception of unnecessary response information, and help the first terminal device to save energy consumption.
  • the first information in the above steps includes SSB information, and the first terminal device receives information from the network device associated with the SSB information and/or the first identifier.
  • the downlink control information DCI reception response information includes: if the DCI includes SSB information, the first terminal device receives the response information scheduled by the DCI.
  • the first terminal device receives the response information according to the received downlink control information DCI associated with the SSB information from the network device, so that the first terminal device can know in advance whether to receive the DCI according to the received DCI
  • the scheduled response information that is, the first terminal device can identify whether the PDSCH scheduled by the DCI is its own response information according to the DCI, avoid repeated reception of unnecessary response information, and help the first terminal device to save energy consumption.
  • the first information in the above steps further includes a first identifier
  • the response information includes a first identifier
  • the first identifier corresponds to the first terminal device one-to-one.
  • the response information includes the identifier of the first terminal device, and after the first terminal device determines to receive the response information, the subPDU can be identified according to the first identifier, which further improves the efficiency of cluster members identifying their own response information.
  • the first information in the above steps includes a first identification; the first terminal device receives information from the network associated with the SSB information and/or the first identification
  • the downlink control information DCI reception response information of the device includes: if the DCI includes the first identifier, the first terminal device receives the response information scheduled by the DCI.
  • the first terminal device receives the response information according to the received downlink control information DCI associated with the first identifier from the network device, so that the first terminal device can know in advance whether to receive the DCI according to the received DCI.
  • the response information scheduled by the DCI that is, the first terminal device can identify whether the PDSCH scheduled by the DCI is its own response information according to the DCI, avoid repeated reception of unnecessary response information, and help the first terminal device to save energy consumption. Further, when one first terminal device corresponds to one SSB, the first terminal device can quickly identify the response information to be received according to the first identifier.
  • the above steps further include: the first terminal device monitors the DCI scrambled using a first sequence, where the first sequence is related to SSB information.
  • the first terminal device can use the first sequence related to the SSB information to monitor the DCI. If the first sequence is used to descramble the DCI successfully, it means that the response information scheduled by the DCI is the response of the first terminal device. information to improve the efficiency of identification and response. Avoiding repeated reception of unnecessary response information is beneficial for the first terminal device to save energy consumption.
  • the DCI in the above steps is obtained by scrambling a second sequence, and the second sequence is the same as the first sequence used by the second terminal device to send the second information to the network device.
  • the target resource is related, and the second information includes at least a part of the first information. It can be understood that the second information can also be used for the first terminal device to access the network device.
  • the first terminal device can use the second sequence to descramble the DCI, if the descrambling is successful , indicating that the DCI is the DCI of the cluster where the first terminal device is located, avoiding repeated reception of unnecessary DCIs, and helping the first terminal device to save energy consumption.
  • the SSB information in the above steps includes an index of the SSB and/or time-frequency domain information of the SSB.
  • the specific situation of the SSB information is limited, wherein the number of bits occupied by the SSB index is small, which is beneficial to the delay in actual transmission.
  • the above steps further include: the first terminal device determines a first target resource according to a mapping relationship between the first resource and the second resource, and the first resource is used for The time-frequency resource used by the second terminal device to transmit data to the network device, and the second resource is used for the time-frequency resource used by the first terminal device to send the first information to the second terminal device.
  • a first terminal device is provided to determine the time-frequency resource used by the second terminal device to send the second information to the network device, and further, the second sequence can be determined.
  • a second aspect of an embodiment of the present application provides a data transmission method, the method includes: a network device receives second information sent by a second terminal device, where the second information includes synchronization signal block SSB information of the first terminal device and/or first A first identifier of a terminal device, the network device sends DCI to the first terminal device, and the DCI is used to schedule response information corresponding to the second information; the network device sends the response information to the first terminal device.
  • the second information includes synchronization signal block SSB information of the first terminal device and/or first A first identifier of a terminal device
  • the network device sends DCI to the first terminal device, and the DCI is used to schedule response information corresponding to the second information
  • the network device sends the response information to the first terminal device.
  • the network device sends the DCI and response information to the first terminal device according to the received second information.
  • the network device directly sends the response information to the first terminal device without the second terminal device forwarding the response information. , to reduce the delay of the first terminal device in the random access process.
  • the first terminal device can know in advance whether to receive the response information scheduled by the DCI according to the received DCI, that is, the first terminal device can identify whether the PDSCH scheduled by the DCI is its own response information according to the DCI, so as to avoid unnecessary responses. Repeated reception of information is beneficial for the first terminal device to save energy consumption.
  • the second information in the above steps includes SSB information
  • the DCI includes SSB information
  • the DCI sent by the network device to the first terminal device includes SSB information. Therefore, the first terminal device can identify whether the PDSCH scheduled by the DCI is its own response information according to the DCI to avoid unnecessary response information. The repeated reception is beneficial for the first terminal device to save energy consumption.
  • the second information in the above steps further includes a first identifier
  • the response information includes a first identifier
  • the first identifier corresponds to the first terminal device one-to-one.
  • the response information sent by the network device to the first terminal device includes the first identifier. Therefore, after the first terminal device determines to receive the response information, it can identify the subPDU according to the first identifier, which further improves the cluster membership. Identify the efficiency of self-response to information.
  • the second information in the above steps includes the first identifier, and the DCI includes the first identifier.
  • the DCI sent by the network device to the first terminal device includes the first identifier. Therefore, the first terminal device can identify whether the PDSCH scheduled by the DCI is its own response information according to the DCI to avoid unnecessary responses. Repeated reception of information is beneficial for the first terminal device to save energy consumption. Further, when one first terminal device corresponds to one SSB, the first terminal device can quickly identify the response information to be received according to the first identifier.
  • the DCI in the above steps is obtained by scrambling a first sequence, and the first sequence is related to SSB information.
  • the DCI sent by the network device to the first terminal device is scrambled using the first sequence related to the SSB information. Therefore, the first terminal device can use the first sequence related to the SSB information to monitor the DCI. If If the DCI is successfully descrambled with the first sequence, it indicates that the response information scheduled by the DCI is the response information of the first terminal device, which improves the efficiency of identifying the response. Avoiding repeated reception of unnecessary response information is beneficial for the first terminal device to save energy consumption.
  • the DCI in the above steps is obtained by scrambling a second sequence, and the second sequence is the same as the first sequence used by the second terminal device to send the second information to the network device. target resource.
  • the first terminal device can use the second sequence to descramble the DCI, if the descrambling is successful , indicating that the DCI is the DCI of the cluster where the first terminal device is located, avoiding repeated reception of unnecessary DCIs, and helping the first terminal device to save energy consumption.
  • the SSB information in the above steps includes an index of the SSB and/or time-frequency domain information of the SSB.
  • the specific situation of the SSB information is limited, wherein the number of bits occupied by the SSB index is small, which is beneficial to the delay in actual transmission.
  • the response information in the above steps includes response information of at least two first terminal devices, and the SSBs corresponding to the at least two first terminal devices are the same.
  • the network device packages and sends the response information corresponding to the first terminal device that selects the same SSB, which is beneficial to saving resources.
  • a third aspect of the present application provides a first terminal device, where the first terminal device has a function of implementing the methods in the foregoing first aspect and its respective implementation manners.
  • the first terminal device includes at least one module, and the at least one module is configured to implement the data transmission method in the above-mentioned first aspect and its respective implementation manners.
  • a fourth aspect of the present application provides a network device, where the network device has a function of implementing the methods in the second aspect and its respective implementation manners.
  • the network device includes at least one module, and the at least one module is configured to implement the data transmission method in the above-mentioned second aspect and its respective implementation manners.
  • a fifth aspect of the present application provides a first terminal device, the first terminal device includes a processor, the processor is coupled with a memory, the memory is used for storing a computer program or an instruction, and the processor is used for executing the computer program in the memory or an instruction, causing the first terminal device to execute the first aspect or the method in any possible implementation manner of the first aspect.
  • a sixth aspect of the present application provides a network device, the network device includes a processor, the processor is coupled with a memory, the memory is used for storing computer programs or instructions, and the processor is used for executing the computer programs or instructions in the memory, so that The network device performs the method of the second aspect or any possible implementation of the second aspect.
  • a seventh aspect of the present application provides a chip, the chip includes a processor and an interface circuit, the interface circuit is coupled to the processor, and the processor is configured to run a computer program or instructions to implement the first aspect or the first aspect
  • the second aspect or the method in any possible implementation manner of the second aspect the interface circuit is used to communicate with other modules outside the chip.
  • An eighth aspect of the present application provides a communication system, including a first terminal device (or a chip in the first terminal device) in the method of the first aspect and a network device (or network device) in the method of the second aspect. chip in ).
  • the communication system includes the first terminal device of the fifth aspect and the network device of the sixth aspect.
  • a ninth aspect of the present application provides a computer storage medium, where instructions are stored in the computer storage medium, and when executed on a computer, the instructions cause the computer to execute the foregoing first aspect or any possible implementation manner of the first aspect, the second A method in any possible implementation of the aspect or the second aspect.
  • a tenth aspect of the present application provides a computer program product, which, when executed on a computer, causes the computer to execute the first aspect or any possible implementation manner of the first aspect, the second aspect or any of the second aspect. methods in possible implementations.
  • FIG. 1 is a schematic diagram of a communication system in an embodiment of the application
  • FIG. 2 is a schematic diagram of a random access process in an embodiment of the present application
  • FIG. 3 is another schematic diagram of a random access process in an embodiment of the present application.
  • FIG. 4 is another schematic diagram of a random access process in an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a data transmission method in an embodiment of the present application.
  • FIG. 6 is a schematic diagram of interaction between multiple first terminal devices and second terminal devices in an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a mapping relationship between resource information of a cluster member and resource information of a cluster head in an embodiment of the present application
  • FIG. 8 is a schematic diagram of another mapping relationship between resource information of a cluster member and resource information of a cluster head in an embodiment of the present application
  • FIG. 9 is a schematic structural diagram of a first terminal device in an embodiment of the present application.
  • FIG. 10 is another schematic structural diagram of the first terminal device in the embodiment of the application.
  • FIG. 11 is a schematic structural diagram of a network device in an embodiment of the application.
  • FIG. 12 is another schematic structural diagram of the first terminal device in the embodiment of the application.
  • FIG. 13 is another schematic structural diagram of a network device in an embodiment of the present application.
  • Embodiments of the present application provide a data transmission method and related equipment, which can be applied to a clustered random access scenario to avoid multiple receptions of response information by a terminal device and reduce energy consumption of the terminal device in the random access process.
  • Figure 1 shows a schematic diagram of a communication system.
  • the communication system may include: a network device 101 , and clusters 102 to 104 .
  • the cluster 102 includes the cluster head 1021 and the cluster members 1022
  • the cluster 103 includes the cluster head 1031 and the cluster members 1032
  • the cluster 104 includes the cluster head 1041 and the cluster members 1042 .
  • the cluster head is equivalent to the second terminal device
  • the cluster members are equivalent to the first terminal device.
  • Step 1 The cluster member 1022 receives a plurality of synchronization signal blocs (SSBs) broadcast by the network device 101, and the cluster member 1022 determines the received power (
  • the reference signal received power, RSRP) is higher than the configured preset threshold, select an SSB among the SSBs higher than the preset threshold, and determine the SSB index (SSB index). If there are no SSBs that meet the conditions (that is, the RSRPs of all SSBs are less than the configured preset threshold), the terminal randomly selects an SSB among all the SSBs.
  • SSB index SSB index
  • Step 2 The cluster member 1022 sends the access request to the cluster head 1021.
  • Step 3 The cluster head 1021 packages the access requests of the multiple cluster members 1022 and sends them to the network device 101 .
  • Step 4 The network device 101 receives the data packet containing the uplink data of the cluster member 1022 sent by the cluster head 1021 , and the network device 101 sends a response message to the cluster member 1022 .
  • the communication system in this embodiment of the present application may have more network devices and clusters.
  • the clusters may include more or less cluster heads and cluster members. This embodiment of the present application does not limit the number of network devices, clusters, cluster heads, and cluster members.
  • the network device 101 in this embodiment of the present application may be any device with a wireless transceiver function. Including but not limited to: base stations (such as base stations in fifth-generation communication systems, base stations in future communication systems, etc.), remote radio units (remoteradio unit, RRU), wireless relay nodes, wireless backhaul nodes, transmission nodes ( Transmission reference point, TRP), wireless controller in cloud radio access network (cloud radio access network, CRAN) scenarios, etc., which are not limited here.
  • base stations such as base stations in fifth-generation communication systems, base stations in future communication systems, etc.
  • remote radio units remote radio unit, RRU
  • wireless relay nodes wireless backhaul nodes
  • transmission nodes Transmission reference point, TRP
  • wireless controller in cloud radio access network cloud radio access network, CRAN
  • the cluster heads 1021, 1031, and 1041 and/or the cluster members 1022, 1032, and 1042 in the embodiments of the present application are equivalent to terminal devices, and the terminal devices may be devices that provide voice and/or data connectivity to users and have a wireless connection function handheld device, or other processing device connected to a wireless modem.
  • Terminal devices may be mobile terminals, such as mobile phones (or "cellular" phones) and computers with mobile terminals, for example, may be portable, pocket-sized, hand-held, computer-built, or vehicle-mounted mobile devices, which are connected to a network Devices exchange language and/or data.
  • terminal equipment can also be called system, subscriber unit (SubscriberUnit), subscriber station (SubscriberStation), mobile station (MobileStation), mobile station (Mobile), remote station (RemoteStation), access point (AccessPoint), remote terminal (RemoteTerminal) , an access terminal (AccessTerminal), a user terminal (UserTerminal), a user agent (UserAgent), a user equipment (UserDevice), or a user equipment (UserEquipment).
  • the terminal device may also be a chip system for implementing UE functions.
  • the embodiment of the present application only takes the network device as the base station, and the cluster head and the cluster members as the terminal device as an example for description.
  • Random access In an LTE or 5G communication system, an information exchange mechanism (or process) for a device that is not connected to the network (or in an idle or inactive state) to establish a connection with the network. It is divided into contention-based random access and non-contention random access. Contention-based random access is usually divided into 4 steps (as shown in Figure 2), each step corresponds to a message: including message 1 (message 1, Msg1), message 2 (message 2, Msg2), and message 3 (message 3, Msg3) and message 4 (message 4, Msg4), respectively carrying different signaling or information. Non-contention based random access has only the first 2 steps.
  • 2-step random access it consists of message A and message B, where message A (message A, MsgA) includes the preamble and the first data information (for example, similar to message 1 and message in 4-step random access) 3), the message B (message B, MsgB) includes at least one of a response to the preamble in MsgA and a response to the PUSCH.
  • the four-step random access process of the terminal is as follows:
  • Step 1 The terminal sends a random access preamble (preamble or sequence) to the base station, that is, the Msg1 described above.
  • the terminal calculates the random access-radio network temporary identity (RA-RNTI) according to the sending timing of the Preamble.
  • Preamble is a sequence whose function is to notify the base station that there is a random access request, and enable the base station to estimate the transmission delay between the terminal and the base station, so that the base station can calibrate the uplink timing and pass the calibration information through the timing advance (timing).
  • advance, TA advance, informs the terminal.
  • Step 2 After detecting the Preamble, the base station calculates the same RA-RNTI as that in Step 1, and sends a random access response, that is, the above-described Msg2, to the terminal.
  • the random access response control information is scrambled with RA-RNTI, and the content of the data channel includes the preamble index (preambleindex), TA, uplink resource allocation information and temporary cell-radio network temporary identity (temporarycell-radionetworktempory) received in step 1 at least one of identity, TC-RNTI).
  • Step 3 The terminal receives the random access response. If the terminal monitors the DCI scrambled by RA-RATI, the terminal receives the PDSCH (that is, the random access response) scheduled by the DCI. If the Preamble Index in the random access response indicates that The random access Preamble is the same as the Preamble sent by the terminal to the base station in step 1, and the terminal considers that the random access response is a random access response for itself.
  • the terminal can initiate an RRC connection request in Msg3.
  • Step 4 The base station receives the uplink message of the terminal, and returns a conflict resolution message, that is, the above-described Msg4, to the terminal that has successfully accessed.
  • the control information of the conflict resolution message is scrambled with TC-RNTI, the base station will carry the unique identifier in Msg3 in the conflict resolution message to designate the terminal that has successfully accessed, and other terminals that have not successfully accessed will re-initiate random access.
  • the base station may perform RRC configuration on the terminal through Msg4.
  • Step 1 The terminal sends MsgA, where MsgA includes preamble and PUSCH.
  • sending Msg A is equivalent to sending Msg1 and Msg3 in the four-step random access process.
  • Step 2 The terminal receives a response MsgB from the network side to MsgA, where the response content of MsgB may include at least one of a response to the preamble and a response to the PUSCH.
  • the response message sent by the base station contains the response to the preamble and/or PUSCH, which is called a successful random access response (successRAR), and the terminal confirms that in the successRAR
  • the terminal initiates a hybrid automatic repeat request (HARQ) feedback, that is, the terminal sends an acknowledgement (ACK) to the base station to confirm that the random access is successful;
  • HARQ hybrid automatic repeat request
  • the response message sent by the base station is the response to the preamble, which is called the fallback random access response (fallbackRAR).
  • the instruction initiates the transmission of Msg3.
  • the data in the Msg3PUSCH is the data in the MsgA PUSCH.
  • the base station decodes the Msg3PUSCH successfully, and the terminal sends the contention resolution information Msg4. After the terminal confirms that the contention carried in Msg4 is resolved correctly, the terminal sends the Send ACK to confirm the success of random access. This process may be called back-off in a two-step random access procedure.
  • the content of Msg2 and the content of Msg4, which are equivalent to the four-step random access process, are sent to the terminal together in MsgB.
  • the two-step random access process only requires one interaction process between the terminal and the base station, which can shorten the time delay for the terminal to access the network.
  • the base station will send response information to the terminal.
  • the base station sends a response message (Msg2) to the terminal
  • the physical downlink control channel (PDCCH) (carrying downlink control information DCI) of the response information is scrambled by RA-RNTI, and the RA -RNTI is calculated and obtained according to the time-frequency resources of the physical random access channel (PRACH), and the response information sent by the base station contains the response messages of multiple terminals, and the response messages of each terminal are placed on the PDSCH.
  • subprotocol data unit subprotocol data unit
  • Each sub-protocol data unit subPDU includes a packet header (mac subheader) and content (mac CE), wherein the packet header carries the random access preamble identity (RAPID) selected by the terminal.
  • the terminal After the terminal receives the response message, it compares the For the RAPID in the packet header, confirm whether the subPDU is its own subPDU.
  • the base station sends a response message to the cluster head, where the response message carries a response message for the received uplink data of each cluster member.
  • the cluster head receives the response information, demodulates the response information, and sends a response response message to the cluster members according to the indication information carried in the response information.
  • Scheme 2 The base station directly sends the response information to the cluster member monitoring the response information.
  • the response message is at the user level, that is, the base station sends the response message for each cluster member.
  • the cluster members wait for the cluster head to forward the response information.
  • the capability of the cluster head is relatively high.
  • the cluster head needs to demodulate the corresponding information before sending it to each cluster member. For the entire data transmission process In other words, the data transmission delay is high.
  • the scheme is optimal, but the base station needs to allocate identifiable identification information to each cluster member (for example, DCI needs different RNTI scrambling), and the information overhead of the base station is relatively large.
  • the embodiments of the present application provide a data transmission method and related equipment, which can reduce the energy consumption of terminal equipment in the random access process.
  • FIG. 5 is a schematic diagram of a data transmission method in an embodiment of the present application.
  • the embodiments of this application only take one cluster, one second terminal device (cluster head), three first terminal devices (cluster members), and one base station as examples for description. It can be understood that in practical applications, The number of clusters, second terminal devices, first terminal devices, and base stations may be more or less, and the specific number is not limited here.
  • the data transmission manner in this embodiment of the present application may be applied to two-step random access or four-step random access, etc., which is not specifically limited here.
  • a first terminal device sends first information to a second terminal device.
  • the first information in the embodiment of the present application has various situations, which are described below:
  • the first terminal device sends first information to the second terminal device, where the first information includes SSB information and/or a first identifier of the first terminal device.
  • the SSB information may include one SSB information or multiple SSB information
  • the first identifier may include an identifier of a first terminal device, or may include identifiers of multiple first terminal devices, which is not specifically limited here.
  • the second terminal device can identify the purpose of sending the first information by the first terminal device according to the first information sent by the first terminal device.
  • the terminal device receives the first information sent by the first terminal device, and if the first information carries the SSB information, the second terminal device can determine that the first terminal device wants to initiate a follow-up access request to the base station; for another example, if the first terminal device If the first information sent by the terminal device also carries RRC information (for example, a connection establishment request or a connection recovery request, etc.), the second terminal device may determine that the first terminal device wants to initiate an accompanying access request to the base station.
  • RRC information for example, a connection establishment request or a connection recovery request, etc.
  • first terminal devices cluster members
  • second terminal device cluster head
  • first terminal devices to select two SSBs as an example. implementation.
  • the first information includes SSB information of the first terminal device.
  • the cluster member Before the cluster member accesses randomly, the cluster member receives multiple SSBs broadcasted by the base station, and the cluster member determines which one or several of the searched SSBs have a reference signal whose RSRP value is higher than the configured preset threshold. Select one of the SSBs higher than the preset threshold to determine the SSB index. If there are no SSBs that meet the conditions (that is, the RSRPs of all SSBs are less than the configured preset threshold), the terminal randomly selects an SSB among all the SSBs
  • the preset threshold in this embodiment of the present application is configured by the network side, which is not specifically limited here.
  • cluster member 1 determines the first SSB (that is, the SSB information of cluster member 1 includes the first SSB information), cluster member 2 determines the first SSB (that is, the SSB information of cluster member 2 includes the first SSB information), and the cluster member 3.
  • Determine the second SSB ie, the SSB information of cluster member 3 includes the second SSB information. That is, cluster member 1 and cluster member 2 select the same first SSB, and cluster member 3 selects the second SSB.
  • Cluster member 1 sends first information to the cluster head, where the first information is used for cluster member 1 to access the base station, and the first information includes first SSB information.
  • Cluster member 2 sends first information to the cluster head, where the first information is used for cluster member 2 to access the base station, and the first information includes first SSB information.
  • Cluster member 3 sends first information to the cluster head, where the first information is used for cluster member 3 to access the base station, and the first information includes second SSB information.
  • the SSB information in this embodiment of the present application may be the SSB index, or the time-frequency domain information of the SSB, and in practical applications, may also be other information related to the SSB, which is not specifically limited here.
  • the first information includes the first identifier of the first terminal device.
  • the cluster member sends first information to the cluster head, where the first information includes the first identifier of the cluster member.
  • the first identifier given in the embodiment of this application may be the identifier of the cluster member in the cluster where the cluster is located, or the unique identifier of the cluster member in the entire network, etc.
  • the first identifier is the international mobile subscriber identity (international mobile subscriber identity). , IMSI), etc., which are not specifically limited here.
  • the first information includes first SSB information and a first identifier of the first terminal device.
  • the cluster member sends first information to the cluster head, where the first information includes the SSB information of the cluster member and the first identifier of the cluster member.
  • the first information includes the first SSB information selected by cluster member 1 and cluster member 2, the second SSB information selected by cluster member 3, the first identifier of cluster member 1, the first identifier of cluster member 2, and the cluster member. 3's first logo.
  • the embodiments of the present application only take the above three types of first information as examples for schematic illustration. It can be understood that, in practical applications, the first information may have other forms, which are not specifically limited here.
  • the second terminal device sends the second information to the network device.
  • the cluster head After the cluster head receives the first information sent by the cluster members, the cluster head sends second information to the base station, where the second information includes at least a part of the first information.
  • the cluster head can determine to send a random access request to the base station according to the content of the first information sent by the cluster members (SSB information or RRC information). Step random access, or other access methods, which are not specifically limited here.
  • the cluster head adopts two-step random access, and the second information is sent through the PUSCH in MsgA of the two-step random access; for example, the cluster head adopts four-step random access.
  • the second information is sent through the PUSCH in the Msg3 of the four-step random access; the cluster head may also select other access modes, which are not specifically limited here.
  • the second information includes the SSB information and/or the first identifier of the cluster member.
  • the second information includes SSB information of the cluster member.
  • the second information includes first SSB information selected by cluster member 1 and cluster member 2 and second SSB information selected by cluster member 3 .
  • the second information includes the first identifier of the cluster member.
  • the second information includes the first identifiers of cluster member 1, cluster member 2, and cluster member 3.
  • the second information includes the SSB information of the cluster member and the first identifier.
  • the second information includes the first SSB information selected by cluster member 1 and cluster member 2, the second SSB information selected by cluster member 3, the first identifier of cluster member 1, the first identifier of cluster member 2, and the cluster member. 3's first logo.
  • the cluster head packs and sends the first information of the multiple cluster members to the base station, that is, the cluster head simultaneously sends the first information of the multiple cluster members to the base station.
  • the network device sends downlink control information DCI to the first terminal device.
  • the base station After receiving the second information sent by the cluster head, the base station can learn the SSB information selected by the cluster member and/or the first identifier of the cluster member. It is further determined to send DCI to the cluster member, where the DCI is used to schedule response information corresponding to the second information.
  • the DCI in this application has multiple implementations, and the DCI can be at least one of the three implementations described below, which are described separately below:
  • the first embodiment DCI includes SSB information.
  • the base station If the second information received by the base station includes SSB information selected by the cluster member, the base station sends DCI to the cluster member, where the DCI includes SSB information corresponding to the cluster member.
  • the base station receives second information, where the second information includes first SSB information selected by cluster member 1 and cluster member 2 and second SSB information selected by cluster member 3 . Then, when the base station sends DCI to cluster member 1 and cluster member 2, the DCI includes the first SSB information selected by cluster member 1 and cluster member 2. When the base station sends DCI to cluster member 3, the DCI includes the second SSB information selected by cluster member 3.
  • the DCI can be obtained by scrambling a second sequence, and the second sequence is related to the first target resource used by the cluster head to send the second information to the base station.
  • the first target resource is A target resource may be PRACH resource information in the two-step random access request information MsgA, such as PRACH time-frequency resources, and/or preamble information selected by PRACH, or PUSCH resource information in MsgA, such as PUSCH time-frequency resources resources, and/or demodulation reference signal (DMRS) information (for example, DMRS port number or DMRS sequence) carried by the cluster head when sending the second information;
  • the cluster head adopts four-step random access the first target resource may be PRACH resource information in the four-step random access request information Msg1, such as PRACH time-frequency resources, and preamble information selected by PRACH.
  • the first target resource may be the time-frequency resource of the PUSCH, and/or the DMRS information associated with the PUSCH (for example, the DMRS port number or DMRS sequence), etc. There is no specific limitation here.
  • the second sequence is a group-radio network temporary identity (G-RNTI), that is, a cluster member can identify whether the DCI is the DCI of the cluster where the cluster member is located through the G-RNTI, and can specifically be It is the cluster member that monitors the DCI. If the G-RNTI is successfully used for descrambling, it means that the DCI is the DCI of the cluster where the cluster member belongs. The cluster member then judges whether to receive the response information scheduled by the DCI according to the SSB information. If the DCI includes the first SSB information, cluster member 1 and cluster member 2 determine to receive the response information scheduled by the DCI (that is, the response information scheduled by the DCI). is sent by the base station to cluster member 1 and cluster member 2).
  • G-RNTI group-radio network temporary identity
  • G-RNTI 1+s_id+14 ⁇ t_id+14 ⁇ 80 ⁇ f_id+14 ⁇ 80 ⁇ 8 ⁇ ul_carrier_id.
  • s_id is the index number of the first OFDM symbol of each PRACH transmission opportunity (PRACH occasion, RO) (0 ⁇ s_id ⁇ 14);
  • t_id is the first time slot (slot) where the PRACH transmission opportunity is located in a system frame ) index number (0 ⁇ t_id ⁇ 80), the value of slot is related to the carrier spacing, and the parameter ⁇ that determines the subcarrier spacing is determined according to Section 5.3.2 in TS 38.211;
  • f_id is the PRACH transmission opportunity resource in the frequency domain Index number (0 ⁇ f_id ⁇ 8);
  • ul_carrier_id is the uplink carrier index number used for random access preamble transmission ⁇ 0 represents normal uplink carrier (NUL), 1 represents supplementary uplink carrier (SUL) ) ⁇ .
  • G-RNTI can also consider using the time-frequency resource information of the PUSCH transmission time slot PO to obtain, which is the same as the above formula 1 and formula 2. Similarly, no limitation is made here.
  • the PRACH transmission opportunity is a time-frequency resource used to transmit a random access preamble sequence.
  • G-RNTI there are many ways to generate the G-RNTI in the embodiments of the present application, and the above two are just examples. In practical applications, there are other ways of generating the G-RNTI, which are not specifically limited here. In addition, the G-RNTI is only an example of the second sequence, and the second sequence is not limited here.
  • the DCI includes the first identifier.
  • the base station sends the DCI to the cluster member, where the DCI includes the first identifier of the cluster member.
  • the first identifier is an intra-cluster identifier of the cluster where the cluster member is located, or a network-wide unique identifier (eg, IMSI) of the cluster member, or the like.
  • IMSI network-wide unique identifier
  • the cluster member when the base station determines that one cluster member corresponds to one SSB (that is, there is no situation that both cluster member 1 and cluster member 2 select the first SSB), by including the first identifier in the DCI, the cluster member can also be based on the DCI. Whether to receive the response information scheduled by the DCI is determined by whether the first identifier of the self is included.
  • the DCI is obtained by scrambling with the second sequence or other sequences (eg, the first sequence).
  • DCI is obtained by scrambling a first sequence, where the first sequence is related to SSB information.
  • the second information received by the base station includes the SSB information selected by the cluster member, then the base station sends the DCI to the cluster member, and the DCI is obtained by scrambling a first sequence, and the first sequence corresponds to the index of the SSB and/or the SSB index of the cluster member. time-frequency domain information correlation.
  • the generation of the first sequence is related to the index or the first identifier of the SSB.
  • the first sequence may also be related to the first target resource used by the cluster head to send the second information to the base station, and the second sequence may also be related to other resources.
  • the first target resource may be PRACH resource information in the two-step random access request information MsgA, such as PRACH time-frequency resources, and/or preamble information selected by PRACH, or PUSCH resource information in MsgA, such as PUSCH time-frequency resources.
  • the first target resource may be Four-step random access request information Msg1
  • the resource information of the PRACH such as the time-frequency resource of the PRACH, and the preamble information selected by the PRACH. There is no specific limitation here.
  • the first sequence is GS-RNTI
  • the cluster member can use the GS-RNTI to identify whether the response information scheduled by the DCI is the response information of the cluster member. Specifically, the cluster member can monitor the DCI. If the GS-RNTI is used, If descrambling is successful, it means that the response information scheduled by the DCI is the response information of the cluster member. If descrambling with G-S-RNTI fails, it means that the response information scheduled by the DCI is not the response information of the cluster member.
  • G-S-RNTI 1+s_id+14 ⁇ t_id+14 ⁇ 80 ⁇ f_id+14 ⁇ 80 ⁇ 8 ⁇ ul_carrier_id+offset1.
  • offset1 is an offset value obtained according to SSB information, so that offset1 is such that the value of G-S-RNTI does not conflict with the values of other RNTIs, and the values of other variables are the same as those described in formula 1.
  • SSB_index is a value obtained according to SSB information
  • MAX_SSB_IDX is the maximum value of SSB_index
  • offset2 is an offset value that makes the value of G-S-RNTI not conflict with the values of other RNTIs.
  • the first terminal device confirms whether to receive the response information scheduled by the DCI according to whether the DCI is associated with the SSB information and/or the first identifier.
  • the cluster member monitors the DCI, and confirms whether to receive the response information scheduled by the DCI according to whether the DCI is associated with the SSB information and/or the first identifier.
  • the cluster member determines that the response information scheduled by the DCI is its own response information, and then receives the response information scheduled by the DCI.
  • the cluster member determines that the response information scheduled by the DCI is not its own response information, and then discards the response information scheduled by the DCI.
  • the cluster member determines that the DCI is related to the SSB information and the first identifier. /or associated with the first identifier.
  • the conditions in step 504 have the following three implementations:
  • the first embodiment DCI includes SSB information.
  • the cluster member can judge whether the response information scheduled by the DCI is its own response information according to whether the DCI includes the SSB information selected by itself.
  • the cluster member can judge whether the response information scheduled by the DCI is its own response information according to whether the DCI includes the SSB information selected by the cluster member. After receiving the DCI, cluster member 1 and cluster member 2 , if the first SSB information is included in the DCI, it means that the response information scheduled by the DCI is the response information of cluster member 1 and cluster member 2. After the cluster member 3 receives the DCI, if the DCI includes the second SSB information, it means that the response information scheduled by the DCI is the response information of the cluster member 3 . Therefore, the cluster member can know in advance whether to receive the response information scheduled by the DCI according to the SSB information in the DCI.
  • the DCI may be obtained by scrambling a second sequence, and the second sequence may specifically be G-RNTI.
  • the first SSB information includes the index of the first SSB and the index of the first SSB is 1
  • the second SSB information includes the index of the second SSB and the index of the second SSB is 2
  • cluster member 1 and Cluster member 2 monitors the DCI scrambled with G-RNTI. If the SSB index carried in the DCI is 1, cluster member 1 and cluster member 2 demodulate the PDSCH scheduled by the DCI to obtain the respective responses carried in the PDSCH. information. If the SSB index carried in the DCI is 2, the cluster member 1 and the cluster member 2 no longer receive the PDSCH scheduled by the DCI, or no longer demodulate the PDSCH, and can discard the corresponding PDSCH.
  • cluster member 3 monitors the DCI scrambled by the G-RNTI. If the SSB index carried in the DCI is 2, cluster member 3 demodulates the PDSCH scheduled by the DCI to obtain the respective response messages carried in the PDSCH. . If the SSB index carried in the DCI is 1, cluster member 3 no longer receives the PDSCH scheduled by the DCI, or no longer demodulates the PDSCH, and can discard the corresponding PDSCH.
  • the DCI includes the first identifier.
  • the cluster member can judge whether the response information scheduled by the DCI is its own response information according to whether the DCI includes its own first identifier.
  • the first identifier is an intra-cluster identifier of the cluster where the first terminal device is located, or a network-wide unique identifier (eg, IMSI) of the first terminal device, or the like.
  • IMSI network-wide unique identifier
  • the DCI is obtained by using G-RNTI or G-S-RNTI scrambling.
  • Embodiment 3 The first terminal device successfully descrambles the DCI using the first sequence.
  • the cluster members use the first sequence to monitor the DCI, and if the descrambling is successful, it means that the DCI is associated with the SSB information. If descrambling fails, it means that the DCI is not associated with the SSB information.
  • the first sequence is GS-RNTI
  • the cluster member can use the GS-RNTI to identify whether the response information scheduled by the DCI is the response information of the cluster member. Specifically, the cluster member can monitor the DCI. If the GS-RNTI is used, If descrambling is successful, it means that the response information scheduled by the DCI is the response information of the cluster member.
  • the first sequence includes the index of the first SSB.
  • cluster member 1 and cluster member 2 use the first sequence to monitor DCI. If cluster member 1 and cluster member 2 use the first sequence containing the first SSB index The descrambling of the DCI is successful, indicating that the response information scheduled by the DCI is the response information of cluster member 1 and cluster member 2.
  • cluster member 1 and cluster member 2 fail to descramble the DCI using the first sequence containing the first SSB index, it means that the response information scheduled by the DCI is not the response information of cluster member 1 and cluster member 2, then cluster member 1 and cluster member 2 If the PDSCH scheduled by the DCI is no longer received, or the PDSCH is no longer demodulated, the corresponding PDSCH may be discarded.
  • cluster member 3 successfully descrambles the DCI using the first sequence containing the second SSB index, indicating that the response information scheduled by the DCI is the response information of cluster member 3 .
  • cluster member 3 fails to descramble the DCI using the first sequence containing the second SSB index, it means that the response information scheduled by the DCI is not the response information of cluster member 3, then cluster member 3 will no longer receive the PDSCH scheduled by DCI, or will no longer receive the PDSCH scheduled by DCI. For PDSCH demodulation, the corresponding PDSCH may be discarded.
  • first sequence and/or the second sequence are related to the first target resource used by the cluster head to send the second information to the base station, and the cluster member wants to descramble the DCI through the first sequence or the second sequence, first The first target resource used when the cluster head sends the second information to the base station is to be determined.
  • the cluster member can determine the first target resource used by the cluster head to send the second information to the base station by means of resource mapping.
  • the time-frequency resources that the cluster members send the first information are located within a certain time domain; the cluster head receives the first information of the cluster members within the certain time domain, and the cluster head sends the second information on the corresponding time-frequency resources. (that is, the received first information of the cluster member) is sent to the base station;
  • the time-frequency resources used by the cluster members to send the first information are located in a certain time-frequency range, and the DMRS used when sending the first information is located in a certain DRMS resource pool; the resource information when the cluster members send the first information (determined when frequency resource range and DMRS resource pool) corresponds to the determined time-frequency resource that the cluster head sends the second information, so the cluster head sends the second information (that is, the received first information of the cluster member) on the corresponding time-frequency resource to the base station.
  • mapping relationships are only examples, and in practical applications, there may also be other mapping relationships, which are not specifically limited here.
  • mapping relationship in this embodiment of the present application may be configured by the base station in advance, or may be inferred by the cluster member according to the time-frequency resource location for sending the first information and the preset rules. In practical applications, other settings may also be used. The method is not specifically limited here.
  • the mapping relationship for the advance configuration of the base station may be that the base station sends resource configuration information of the cluster members to the cluster members through broadcast information, and the resource configuration information includes at least one of the following types of resource information: time-frequency resources when the cluster members send uplink data information (for example: time-domain period, time-frequency resource size for sending data, frequency-domain resource size, number of frequency-domain resources, etc.), DMRS information corresponding to uplink data sent by cluster members (for example: DMRS port number, DMRS sequence, etc.), Time-frequency resource information used by the cluster head to send data or preamble (for example: PRACH resources in the four-step random access mode or PRACH and PUSCH resources in the two-step random access mode), the preamble resource information when the cluster head sends data (preamble sequence), etc., the resource information of the cluster head is the resource information (the first resource) used by the cluster head, and the resource information of the cluster members is the resource information (ie the second resource) used by the cluster members.
  • the first terminal device determines the first target resource according to the mapping relationship between the first resource and the second resource is illustrated below with reference to FIG. 7 and FIG. 8 .
  • the first resource includes a first time domain resource
  • the second resource includes a second time domain resource
  • the first target resource includes a first target time domain resource.
  • the mapping relationship between the resource information of the cluster members and the resource information of the cluster head may be the mapping relationship of time domain resources (ie, the mapping relationship between the first time domain resources and the second time domain resources).
  • the preset mapping rule the cluster head sends the second information to the base station on the sixth time slot after the cluster member 1 sends the first information, and the cluster head sends the second information to the base station on the fifth time slot after the cluster member 2 sends the first information.
  • the base station sends the second information
  • the cluster head sends the second information to the base station on the third time slot after the cluster member 3 sends the first information.
  • the cluster head receives the first information of cluster member 1, cluster member 2 and cluster member 3, the cluster head sends the second information to the base station on the determined time domain resource.
  • the cluster member may also determine the starting position of the time window for the monitoring base station to send the response information according to the time domain resource of the second information sent by the cluster head.
  • the first target time domain resource is the time domain resource used by the cluster head when sending the second information to the base station. It can be understood that the time domain resources for sending the first information to the cluster head by the cluster member 1, the cluster member 2 and the cluster member 3 may be different or the same, which is not specifically limited here.
  • the first resource includes a first time domain resource
  • the second resource includes a second time domain resource
  • the first target resource includes a first target time domain resource.
  • the mapping relationship between the resource information of the cluster members and the resource information of the cluster head may be that the resources used for sending the first information by the cluster members in a certain period are mapped to the resources used for sending the second information by the cluster head within a certain period. on resources. That is, resource 1 is equivalent to the first target time domain resource, and the first time domain resource includes resource 1 , resource 2 and resource 3 .
  • the cluster member sends the first information to the cluster head in cycle 1, that is, the cluster head receives the first information of the cluster member in cycle 1, then the cluster head will receive the cluster member 1, cluster member on the resource 1 available to the cluster head. 2 and the data of cluster member 3 are forwarded to the base station (that is, the cluster head sends the second information to the base station on resource 1). Similarly, if the cluster member sends the first information to the cluster head in cycle 2, the cluster member will determine that the cluster head will use resource 2 to send the second information to the base station.
  • FIG. 7 and FIG. 8 are only two examples of the mapping relationship. In practical applications, there are many ways of the mapping relationship, which are not limited here.
  • the network device sends response information to the first terminal device.
  • the base station may select the response information corresponding to the cluster member of the same SSB to package and send together.
  • the time-frequency resource used by the base station to send the response information may be determined according to a preset rule, or may be set by the base station, which is not specifically limited here. If it is set by the base station, the base station can send configuration information to the cluster members, so that the cluster members can know the time-frequency resources used by the base station to send the response information through the configuration information.
  • cluster members implement network access through cluster head forwarding, so the base station does not need to configure PRACH information, such as a preamble, for cluster members.
  • the cluster member decides whether to receive the response information scheduled by the DCI according to the previous judgment on the DCI.
  • the preamble index carried in the subPDU in the response information may be the preamble index selected by the cluster head. That said, the cluster member cannot confirm whether the subPDU is its own or not through the preamble index.
  • the first information carries the first identifier of the cluster member
  • the cluster head sends the second information to the base station
  • the first information The second information carries the first identifier of the cluster member.
  • the header of the subPDU of the response information can carry the first identifier of the cluster member. After the cluster member receives the response information, the subPDU can be identified according to the first identifier, which further improves the cluster member's identification of its own response information. s efficiency.
  • the first information in step 501 has three implementation examples
  • the second information in step 502 has three implementation examples
  • the DCI in step 503 has three implementation examples.
  • step 504 there are three examples of implementation manners in which the cluster member determines the condition that the DCI is associated with the SSB information and/or the first identifier.
  • the three implementation examples of the first information in step 501 correspond to the three implementation examples of the second information in step 502 .
  • the DCI in step 503 has three implementation examples corresponding to the three implementation examples in step 504 in which the cluster member determines the condition that the DCI is associated with the SSB information and/or the first identifier.
  • the situations of other steps can be combined, for example, the three implementation examples of the first information in step 501 can be used in combination with the three implementation examples of DCI in step 503 .
  • the DCI may be one of the first embodiment or the third embodiment; or when the first information is three, the DCI may be one of the three cases kind.
  • the cluster member sends the first information to the cluster head. If the cluster head receives the first information sent by multiple family members, the cluster head may send the first information containing the first information sent by the multiple family members to the base station. Second information, the cluster member receives the response information sent by the base station.
  • the response information includes response information to the first information sent by one or more family members.
  • the response information is sent by the base station after receiving the second information sent by the cluster header, and it may also be considered that the response information is response information corresponding to the second information.
  • the first terminal device can directly receive the response information sent by the network device without forwarding the response information by the second terminal device, thereby reducing the delay of the first terminal device in the random access process.
  • the cluster member receives the response information according to the received DCI from the base station associated with the SSB information and/or the first identifier, so that the cluster member can know in advance whether to receive the DCI-scheduled response information according to the received DCI, that is, Cluster members can identify whether it is their own response information according to the DCI, so as to avoid repeated reception of unnecessary response information, which is beneficial to the energy saving of cluster members. Further, the cluster member can also quickly identify its own response information according to the first identifier in the response information.
  • an embodiment of the first terminal device 900 in the embodiment of the present application includes:
  • a sending unit 901 configured to send first information to a second terminal device, where the first information includes synchronization signal block SSB information of the first terminal device and/or a first identifier of the first terminal device;
  • the receiving unit 902 is further configured to receive response information according to the received downlink control information DCI associated with the SSB information and/or the first identifier from the network device, where the response information corresponds to the first information.
  • each unit in the first terminal device is similar to those described in the foregoing embodiments shown in FIG. 2 to FIG. 6 , and details are not repeated here.
  • the receiving unit 902 can directly receive the response information sent by the network device without forwarding the response information by the second terminal device, thereby reducing the delay of the first terminal device in the random access process.
  • the receiving unit 902 receives the response information according to the received downlink control information DCI associated with the SSB information and/or the first identifier from the network device, so that the receiving unit 902 can know in advance whether to receive the DCI according to the received DCI
  • the scheduled response information that is, the first terminal device can identify whether the PDSCH scheduled by the DCI is its own response information according to the DCI, avoid repeated reception of unnecessary response information, and help the first terminal device to save energy consumption.
  • another embodiment of the first terminal device 1000 in the embodiment of the present application includes:
  • a sending unit 1001 configured to send first information to a second terminal device, where the first information includes synchronization signal block SSB information of the first terminal device and/or a first identifier of the first terminal device;
  • the receiving unit 1002 is further configured to receive response information according to the received downlink control information DCI associated with the SSB information and/or the first identifier from the network device, where the response information corresponds to the first information.
  • the processing unit 1003 is configured to monitor the DCI scrambled using a first sequence, where the first sequence is related to SSB information.
  • the processing unit 1003 is further configured to determine the first target resource according to the mapping relationship between the first resource and the second resource, the first resource is used for the time-frequency resource used by the second terminal device to transmit data to the network device, and the second resource Time-frequency resources used by the first terminal device to transmit data to the second terminal device.
  • the receiving unit 1002 is specifically configured to receive response information scheduled by the DCI.
  • the first information further includes a first identifier
  • the response information includes a first identifier
  • the first identifier is in one-to-one correspondence with the first terminal device.
  • the receiving unit 1002 is specifically configured to receive response information scheduled by the DCI.
  • the DCI is obtained by scrambling a second sequence, where the second sequence is related to the first target resource used by the second terminal device to send the second information to the network device, and the second information includes at least a part of the first information. It can be understood that the second information may also be used for the first terminal device to access the network device.
  • the SSB information includes an index of the SSB and/or time-frequency domain information of the SSB.
  • each unit in the first terminal device is similar to those described in the foregoing embodiments shown in FIG. 2 to FIG. 6 , and details are not repeated here.
  • the receiving unit 1002 can directly receive the response information sent by the network device without forwarding the response information by the second terminal device, thereby reducing the delay of the first terminal device in the random access process.
  • the receiving unit 1002 receives the response information according to the received downlink control information DCI associated with the SSB information and/or the first identifier from the network device, so that the receiving unit 1002 can know in advance whether to receive the DCI according to the received DCI
  • the scheduled response information that is, the first terminal device can identify whether the PDSCH scheduled by the DCI is its own response information according to the DCI, avoid repeated reception of unnecessary response information, and help the first terminal device to save energy consumption.
  • an embodiment of the network device 1100 in the embodiment of the present application includes:
  • the receiving unit 1101 is configured to receive second information sent by the second terminal device, where the second information includes the synchronization signal block SSB information of the first terminal device and/or the first identifier of the first terminal device,
  • the sending unit 1102 is further configured to send DCI to the first terminal device, where the DCI is used to schedule response information corresponding to the second information;
  • the sending unit 1102 is further configured to send response information to the first terminal device.
  • the second information includes SSB information
  • the DCI includes SSB information
  • the second information further includes a first identifier
  • the response information includes a first identifier
  • the first identifier is in one-to-one correspondence with the first terminal device.
  • the second information includes the first identifier
  • the DCI includes the first identifier
  • the DCI is obtained by scrambling a first sequence, and the first sequence is related to SSB information.
  • the DCI is obtained by scrambling a second sequence, where the second sequence is related to the first target resource used by the second terminal device to send the second information to the network device.
  • the SSB information includes an index of the SSB and/or time-frequency domain information of the SSB.
  • the response information includes response information of at least two first terminal devices, and the SSBs corresponding to the at least two first terminal devices are the same.
  • each unit in the network device the operations performed by each unit in the network device are similar to those described in the foregoing embodiments shown in FIG. 2 to FIG. 6 , and details are not repeated here.
  • the sending unit 1102 sends the DCI and the response information to the first terminal device according to the received second information.
  • the sending unit 1102 directly sends the response to the first terminal device without the second terminal device forwarding the response information. information to reduce the delay of the first terminal device in the random access process.
  • the first terminal device can know in advance whether to receive the response information scheduled by the DCI according to the received DCI, that is, the first terminal device can identify whether the PDSCH scheduled by the DCI is its own response information according to the DCI, so as to avoid unnecessary responses. Repeated reception of information is beneficial for the first terminal device to save energy consumption.
  • an embodiment of the present application provides another communication device.
  • the communication device may be a terminal device.
  • the terminal device can be any terminal device including a mobile phone, a tablet computer, a personal digital assistant (PDA), a point of sales (POS), a vehicle-mounted computer, etc.
  • the terminal device is a mobile phone as an example:
  • FIG. 12 is a block diagram showing a partial structure of a mobile phone related to a terminal device provided by an embodiment of the present application.
  • the mobile phone includes: a radio frequency (RF) circuit 1210 , a memory 1220 , an input unit 1230 , a display unit 1240 , a sensor 1250 , an audio circuit 1260 , a wireless fidelity (WiFi) module 1270 , and a processor 1280 , and power supply 1290 and other components.
  • RF radio frequency
  • the RF circuit 1210 can be used for receiving and sending signals during transmission and reception of information or during a call. In particular, after receiving the downlink information of the base station, it is processed by the processor 1280; in addition, it sends the designed uplink data to the base station.
  • the RF circuit 1210 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like.
  • LNA Low Noise Amplifier
  • RF circuitry 1210 may also communicate with networks and other devices via wireless communications.
  • the above-mentioned wireless communication can use any communication standard or protocol, including but not limited to Global System of Mobile communication (GSM), General Packet Radio Service (General Packet Radio Service, GPRS), Code Division Multiple Access (Code Division) Multiple Access, CDMA), Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, WCDMA), Long Term Evolution (Long Term Evolution, LTE), email, Short Messaging Service (Short Messaging Service, SMS), etc.
  • GSM Global System of Mobile communication
  • General Packet Radio Service General Packet Radio Service
  • GPRS General Packet Radio Service
  • Code Division Multiple Access Code Division Multiple Access
  • CDMA Code Division Multiple Access
  • Wideband Code Division Multiple Access Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • SMS Short Messaging Service
  • the memory 1220 can be used to store software programs and modules, and the processor 1280 executes various functional applications and data processing of the mobile phone by running the software programs and modules stored in the memory 1220 .
  • the memory 1220 may mainly include a stored program area and a stored data area, wherein the stored program area may store an operating system, an application program required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data created by the use of the mobile phone (such as audio data, phone book, etc.), etc. Additionally, memory 1220 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
  • the input unit 1230 can be used to receive inputted numerical or character information, and generate key signal input related to user setting and function control of the mobile phone.
  • the input unit 1230 may include a touch panel 1231 and other input devices 1232 .
  • the touch panel 1231 also known as a touch screen, can collect the user's touch operations on or near it (such as the user's finger, stylus, etc., any suitable object or attachment on or near the touch panel 1231). operation), and drive the corresponding connection device according to the preset program.
  • the touch panel 1231 may include two parts, a touch detection device and a touch controller.
  • the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it to the touch controller.
  • the touch panel 1231 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves.
  • the input unit 1230 may also include other input devices 1232 .
  • other input devices 1232 may include, but are not limited to, one or more of physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, joysticks, and the like.
  • the display unit 1240 may be used to display information input by the user or information provided to the user and various menus of the mobile phone.
  • the display unit 1240 may include a display panel 1241, and optionally, the display panel 1241 may be configured in the form of a liquid crystal display (Liquid Crystal Display, LCD), an organic light-emitting diode (Organic Light-Emitting Diode, OLED), and the like.
  • the touch panel 1231 can cover the display panel 1241, and when the touch panel 1231 detects a touch operation on or near it, it transmits it to the processor 1280 to determine the type of the touch event, and then the processor 1280 determines the type of the touch event according to the touch event. Type provides corresponding visual output on display panel 1241.
  • the touch panel 1231 and the display panel 1241 are used as two independent components to realize the input and input functions of the mobile phone, in some embodiments, the touch panel 1231 and the display panel 1241 can be integrated to form Realize the input and output functions of the mobile phone.
  • the cell phone may also include at least one sensor 1250, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 1241 according to the brightness of the ambient light, and the proximity sensor may turn off the display panel 1241 and/or when the mobile phone is moved to the ear. or backlight.
  • the accelerometer sensor can detect the magnitude of acceleration in all directions (usually three axes), and can detect the magnitude and direction of gravity when it is stationary. games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for other sensors such as gyroscope, barometer, hygrometer, thermometer, infrared sensor, etc. Repeat.
  • the audio circuit 1260, the speaker 1261, and the microphone 1262 can provide an audio interface between the user and the mobile phone.
  • the audio circuit 1260 can transmit the received audio data converted electrical signals to the speaker 1261, and the speaker 1261 converts them into sound signals for output; on the other hand, the microphone 1262 converts the collected sound signals into electrical signals, and the audio circuit 1260 converts the collected sound signals into electrical signals. After receiving, it is converted into audio data, and then the audio data is output to the processor 1280 for processing, and then sent to, for example, another mobile phone through the RF circuit 1210, or the audio data is output to the memory 1220 for further processing.
  • WiFi is a short-distance wireless transmission technology.
  • the mobile phone can help users to send and receive emails, browse web pages, and access streaming media through the WiFi module 1270. It provides users with wireless broadband Internet access.
  • FIG. 12 shows the WiFi module 1270, it can be understood that it is not a necessary component of the mobile phone.
  • the processor 1280 is the control center of the mobile phone, and uses various interfaces and lines to connect various parts of the entire mobile phone, by running or executing the software programs and/or modules stored in the memory 1220, and calling the data stored in the memory 1220. Various functions of the mobile phone and processing data, so as to monitor the mobile phone as a whole.
  • the processor 1280 may include one or more processing units; preferably, the processor 1280 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, etc. , the modem processor mainly deals with wireless communication. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 1280.
  • the mobile phone also includes a power supply 1290 (such as a battery) for supplying power to various components.
  • a power supply 1290 (such as a battery) for supplying power to various components.
  • the power supply can be logically connected to the processor 1280 through a power management system, so as to manage charging, discharging, and power consumption management functions through the power management system.
  • the mobile phone may also include a camera, a Bluetooth module, and the like, which will not be repeated here.
  • the processor 1280 included in the terminal device may perform the functions in the foregoing embodiments shown in FIG. 2 to FIG. 6 , and details are not described herein again.
  • FIG. 13 is a schematic structural diagram of the communication device involved in the above-mentioned embodiment provided for the embodiment of the present application, wherein the communication device may specifically be the network device in the foregoing embodiment, and the structure of the communication device may refer to FIG. 13 shows the structure.
  • the communication device includes at least one processor 1311 , at least one memory 1312 , at least one transceiver 1313 , at least one network interface 1314 and one or more antennas 1315 .
  • the processor 1311, the memory 1312, the transceiver 1313 and the network interface 1314 are connected, for example, through a bus. In this embodiment of the present application, the connection may include various interfaces, transmission lines, or buses, which are not limited in this embodiment. .
  • the antenna 1315 is connected to the transceiver 1313 .
  • the network interface 1314 is used to connect the communication device with other communication devices through a communication link.
  • the network interface 1314 may include a network interface between the communication device and the core network device, such as an S1 interface, and the network interface may include the communication device and other networks.
  • a network interface between devices such as other access network devices or core network devices, such as an X2 or Xn interface.
  • the processor 1311 is mainly used to process communication protocols and communication data, control the entire communication device, execute software programs, and process data of the software programs, for example, to support the communication device to perform the actions described in the embodiments.
  • the communication device may include a baseband processor and a central processing unit.
  • the baseband processor is mainly used to process communication protocols and communication data.
  • the central processing unit is mainly used to control the entire terminal equipment, execute software programs, and process data of software programs. .
  • the processor 1311 in FIG. 13 may integrate the functions of the baseband processor and the central processing unit. Those skilled in the art can understand that the baseband processor and the central processing unit may also be independent processors, interconnected by technologies such as a bus.
  • a terminal device may include multiple baseband processors to adapt to different network standards, a terminal device may include multiple central processors to enhance its processing capability, and various components of the terminal device may be connected through various buses.
  • the baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit can also be expressed as a central processing circuit or a central processing chip.
  • the function of processing the communication protocol and communication data may be built in the processor, or may be stored in the memory in the form of a software program, and the processor executes the software program to realize the baseband processing function.
  • the memory is mainly used to store software programs and data.
  • the memory 1312 may exist independently and be connected to the processor 1311 .
  • the memory 1312 can be integrated with the processor 1311, for example, in one chip.
  • the memory 1312 can store program codes for implementing the technical solutions of the embodiments of the present application, and is controlled and executed by the processor 1311 .
  • Figure 13 shows only one memory and one processor. In an actual terminal device, there may be multiple processors and multiple memories.
  • the memory may also be referred to as a storage medium or a storage device or the like.
  • the memory may be a storage element on the same chip as the processor, that is, an on-chip storage element, or an independent storage element, which is not limited in this embodiment of the present application.
  • the transceiver 1313 may be used to support the reception or transmission of radio frequency signals between the communication device and the terminal, and the transceiver 1313 may be connected to the antenna 1315 .
  • the transceiver 1313 includes a transmitter Tx and a receiver Rx.
  • one or more antennas 1315 can receive radio frequency signals
  • the receiver Rx of the transceiver 1313 is configured to receive the radio frequency signals from the antennas, convert the radio frequency signals into digital baseband signals or digital intermediate frequency signals, and convert the digital
  • the baseband signal or digital intermediate frequency signal is provided to the processor 1311, so that the processor 1311 performs further processing on the digital baseband signal or digital intermediate frequency signal, such as demodulation processing and decoding processing.
  • the transmitter Tx in the transceiver 1313 is also used to receive the modulated digital baseband signal or digital intermediate frequency signal from the processor 1311, convert the modulated digital baseband signal or digital intermediate frequency signal into a radio frequency signal, and pass a The radio frequency signal is transmitted by the antenna or antennas 1315.
  • the receiver Rx can selectively perform one or more stages of down-mixing processing and analog-to-digital conversion processing on the radio frequency signal to obtain a digital baseband signal or a digital intermediate frequency signal. The order of precedence is adjustable.
  • the transmitter Tx can selectively perform one or more stages of up-mixing processing and digital-to-analog conversion processing on the modulated digital baseband signal or digital intermediate frequency signal to obtain a radio frequency signal, and the up-mixing processing and digital-to-analog conversion processing
  • the order of s is adjustable.
  • Digital baseband signals and digital intermediate frequency signals can be collectively referred to as digital signals.
  • a transceiver may also be referred to as a transceiver unit, a transceiver, a transceiver, or the like.
  • the device used for realizing the receiving function in the transceiver unit may be regarded as the receiving unit
  • the device used for realizing the sending function in the transceiver unit may be regarded as the sending unit, that is, the transceiver unit includes a receiving unit and a sending unit, and the receiving unit also It can be called a receiver, an input port, a receiving circuit, etc.
  • the sending unit can be called a transmitter, a transmitter, or a transmitting circuit, etc.
  • the communication apparatus shown in FIG. 13 can be specifically used to implement the steps implemented by the network equipment in the method embodiments corresponding to FIG. 2 to FIG. 6 , and realize the technical effects corresponding to the network equipment.
  • the communication apparatus shown in FIG. 13 can be specifically used to implement the steps implemented by the network equipment in the method embodiments corresponding to FIG. 2 to FIG. 6 , and realize the technical effects corresponding to the network equipment.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as an independent product, may be stored in a computer-readable storage medium.
  • the technical solutions of the present application can be embodied in the form of software products in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, and the computer software products are stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, removable hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program codes .

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Abstract

本申请实施例提供了一种数据传输方法及相关设备，在该方法中，第一终端设备根据接收到的与SSB信息和/或第一标识关联的来自网络设备的下行控制信息DCI接收响应信息，这样第一终端设备可以根据接收到的DCI提前获知是否接收该DCI调度的响应信息，即第一终端设备可以根据DCI识别DCI所调度的PDSCH是不是自身的响应信息，避免不必要响应信息的重复接收，有利于第一终端设备节省能耗。

Description

一种数据传输方法及相关设备 技术领域
本申请实施例涉及通信领域，尤其涉及一种数据传输方法及相关设备。
背景技术
在长期演进(long term evolution，LTE)、5g(5th-generation)新空口(new radio，NR)等无线通信系统中，用户设备(user equipment，UE)需要通过随机接入从无线资源控制(radio resource control，RRC)空闲态或非激活(inactive)态进入RRC连接态，才能与基站间建立起各种承载，获取到一些必须的资源以及参数配置，进而才能与基站进行通信。随机接入的方式主要是通过基于竞争的四步随机接入过程或者基于两步随机接入过程取得上行同步，然后再进行上行数据传输。目前，每个小区可用的随机接入前导(preamble)数量有限，如果两个或两个以上的UE在发送preamble的时频资源中选择了相同的preamble，将产生随机接入碰撞，UE需要等待收到Msg4或MsgB冲突解决消息后，才能确定是否接入成功。接入失败的UE将再次尝试随机接入过程，时间开销较大。
目前，对于一个基站覆盖海量终端设备，当其中一部分终端接入时，由于可用于随机接入的preamble资源不够而发生接入碰撞，为了降低接入碰撞概率，采用簇的概念，一个簇包括多个簇成员(例如，多个UE)以及一个簇头(例如，一个公共UE)，多个簇成员通过一个簇头进行随机接入，该簇头随机选择preamble进行接入，相当于一个簇用一个preamble，进而降低了接入碰撞概率。
然而，对于簇的应用，在基站向簇头发送响应信息时，需要族头对响应信息解调，将针对各个族成员的响应信息再发送给各个簇成员。因此，此接入方式所带来的时延很高。
发明内容
本申请实施例提供了一种数据传输方法及相关设备，可以应用于成簇随机接入场景，降低终端设备在随机接入过程中的时延。
本申请实施例第一方面提供了一种数据传输方法，该方法包括：第一终端设备向第二终端设备发送第一信息，第一信息包括第一终端设备的同步信号块SSB信息和/或第一终端设备的第一标识。第一终端设备根据接收到的与SSB信息和/或第一标识关联的来自网络设备的下行控制信息DCI接收响应信息，响应信息与第一信息对应。
本申请实施例中，一方面：第一终端设备可以直接接收网络设备发送的响应信息，不用第二终端设备转发响应信息，降低第一终端设备在随机接入过程中的时延。另一方面：第一终端设备根据接收到的与SSB信息和/或第一标识关联的来自网络设备的下行控制信息DCI接收响应信息，这样第一终端设备可以根据接收到的DCI提前获知是否接收该DCI调度的响应信息，即第一终端设备可以根据DCI识别DCI所调度的PDSCH是不是自身的响应信息，避免不必要响应信息的重复接收，有利于第一终端设备节省能耗。
可选地，在第一方面的一种可能的实现方式中，上述步骤中的第一信息包括SSB信息，第一终端设备根据接收到的与SSB信息和/或第一标识关联的来自网络设备的下行控制信 息DCI接收响应信息，包括：若DCI中包括SSB信息，第一终端设备接收DCI调度的响应信息。
该种可能的实现方式中，第一终端设备根据接收到的与SSB信息关联的来自网络设备的下行控制信息DCI接收响应信息，这样第一终端设备可以根据接收到的DCI提前获知是否接收该DCI调度的响应信息，即第一终端设备可以根据DCI识别DCI所调度的PDSCH是不是自身的响应信息，避免不必要响应信息的重复接收，有利于第一终端设备节省能耗。
可选地，在第一方面的一种可能的实现方式中，上述步骤中的第一信息还包括第一标识，响应信息包括第一标识，第一标识与第一终端设备一一对应。
该种可能的实现方式中，响应信息中包括第一终端设备的标识，在第一终端设备确定接收响应信息后，可以根据第一标识识别subPDU，进一步提高了簇成员识别自身响应信息的效率。
可选地，在第一方面的一种可能的实现方式中，上述步骤中的第一信息包括第一标识；第一终端设备根据接收到的与SSB信息和/或第一标识关联的来自网络设备的下行控制信息DCI接收响应信息，包括：若DCI包括第一标识，第一终端设备接收DCI调度的响应信息。
该种可能的实现方式中，第一终端设备根据接收到的与第一标识关联的来自网络设备的下行控制信息DCI接收响应信息，这样第一终端设备可以根据接收到的DCI提前获知是否接收该DCI调度的响应信息，即第一终端设备可以根据DCI识别DCI所调度的PDSCH是不是自身的响应信息，避免不必要响应信息的重复接收，有利于第一终端设备节省能耗。进一步的，一个第一终端设备对应一个SSB时，第一终端设备根据第一标识可以快速识别出需要接收的响应信息。
可选地，在第一方面的一种可能的实现方式中，上述步骤还包括：第一终端设备监听使用第一序列加扰的DCI，第一序列与SSB信息相关。
该种可能的实现方式中，第一终端设备可以使用与SSB信息相关的第一序列监听DCI，如果用第一序列解扰DCI成功，说明该DCI调度的响应信息是该第一终端设备的响应信息，提高识别响应的效率。避免不必要响应信息的重复接收，有利于第一终端设备节省能耗。
可选地，在第一方面的一种可能的实现方式中，上述步骤中的DCI使用第二序列加扰得到，第二序列与第二终端设备向网络设备发送第二信息所使用的第一目标资源相关，第二信息包括第一信息的至少一部分。可以理解的是，第二信息也可以用于第一终端设备接入网络设备。
该种可能的实现方式中，由于第二序列与第二终端设备向网络设备发送第二信息所使用的第一目标资源相关，第一终端设备可以使用第二序列解扰DCI，如果解扰成功，说明该DCI是第一终端设备所在簇的DCI，避免不必要DCI的重复接收，有利于第一终端设备节省能耗。
可选地，在第一方面的一种可能的实现方式中，上述步骤中的SSB信息包括SSB的索引和/或SSB的时频域信息。
该种可能的实现方式中，限定了SSB信息的具体情况，其中，SSB索引占用的比特数 较少，有利于实际传输中的时延。
可选地，在第一方面的一种可能的实现方式中，上述步骤还包括：第一终端设备根据第一资源与第二资源之间的映射关系确定第一目标资源，第一资源用于第二终端设备向网络设备传输数据所使用的时频资源，第二资源用于第一终端设备向第二终端设备发送第一信息所使用的时频资源。
该种可能的实现方式中，提供了一种第一终端设备确定第二终端设备向网络设备发送第二信息所使用的时频资源，进一步的可以确定第二序列。
本申请实施例第二方面提供了一种数据传输方法，该方法包括：网络设备接收第二终端设备发送的第二信息，第二信息包括第一终端设备的同步信号块SSB信息和/或第一终端设备的第一标识，网络设备向第一终端设备发送DCI，DCI用于调度与第二信息对应的响应信息；网络设备向第一终端设备发送响应信息。
本申请实施例中，网络设备根据接收到的第二信息向第一终端设备发送DCI和响应信息，一方面：不用第二终端设备在转发响应信息，网络设备直接向第一终端设备发送响应信息，降低第一终端设备在随机接入过程中的时延。另一方面：第一终端设备可以根据接收到的DCI提前获知是否接收该DCI调度的响应信息，即第一终端设备可以根据DCI识别DCI所调度的PDSCH是不是自身的响应信息，避免不必要响应信息的重复接收，有利于第一终端设备节省能耗。
可选地，在第二方面的一种可能的实现方式中，上述步骤中的第二信息包括SSB信息，DCI中包括SSB信息。
该种可能的实现方式中，网络设备向第一终端设备发送的DCI中包括SSB信息，因此，第一终端设备可以根据DCI识别DCI所调度的PDSCH是不是自身的响应信息，避免不必要响应信息的重复接收，有利于第一终端设备节省能耗。
可选地，在第二方面的一种可能的实现方式中，上述步骤中的第二信息还包括第一标识，响应信息包括第一标识，第一标识与第一终端设备一一对应。
该种可能的实现方式中，网络设备向第一终端设备发送的响应信息中包括第一标识，因此，第一终端设备确定接收响应信息后，可以根据第一标识识别subPDU，进一步提高了簇成员识别自身响应信息的效率。
可选地，在第二方面的一种可能的实现方式中，上述步骤中的第二信息包括第一标识，DCI中包括第一标识。
该种可能的实现方式中，网络设备向第一终端设备发送的DCI中包括第一标识，因此，第一终端设备可以根据DCI识别DCI所调度的PDSCH是不是自身的响应信息，避免不必要响应信息的重复接收，有利于第一终端设备节省能耗。进一步的，一个第一终端设备对应一个SSB时，第一终端设备根据第一标识可以快速识别出需要接收的响应信息。
可选地，在第二方面的一种可能的实现方式中，上述步骤中的DCI使用第一序列加扰得到，第一序列与SSB信息相关。
该种可能的实现方式中，网络设备向第一终端设备发送的DCI使用与SSB信息相关的第一序列加扰，因此，第一终端设备可以使用与SSB信息相关的第一序列监听DCI，如果 用第一序列解扰DCI成功，说明该DCI调度的响应信息是该第一终端设备的响应信息，提高识别响应的效率。避免不必要响应信息的重复接收，有利于第一终端设备节省能耗。
可选地，在第二方面的一种可能的实现方式中，上述步骤中的DCI使用第二序列加扰得到，第二序列与第二终端设备向网络设备发送第二信息所使用的第一目标资源相关。
该种可能的实现方式中，由于第二序列与第二终端设备向网络设备发送第二信息所使用的第一目标资源相关，第一终端设备可以使用第二序列解扰DCI，如果解扰成功，说明该DCI是第一终端设备所在簇的DCI，避免不必要DCI的重复接收，有利于第一终端设备节省能耗。
可选地，在第二方面的一种可能的实现方式中，上述步骤中的SSB信息包括SSB的索引和/或SSB的时频域信息。
该种可能的实现方式中，限定了SSB信息的具体情况，其中，SSB索引占用的比特数较少，有利于实际传输中的时延。
可选地，在第二方面的一种可能的实现方式中，上述步骤中的响应信息包括至少两个第一终端设备的响应信息，至少两个第一终端设备所对应的SSB相同。
该种可能的实现方式中，网络设备将选择SSB相同的第一终端设备对应的响应信息打包发送，有利于节省资源。
本申请第三方面提供了一种第一终端设备，该第一终端设备具有实现上述第一方面及其各实现方式中的方法的功能。所述第一终端设备包括至少一个模块，该至少一个模块用于实现上述第一方面及其各实现方式中的数据传输方法。
本申请第四方面提供了一种网络设备，该网络设备具有实现上述第二方面及其各实现方式中的方法的功能。所述网络设备包括至少一个模块，该至少一个模块用于实现上述第二方面及其各实现方式中的数据传输方法。
本申请第五方面提供一种第一终端设备，该第一终端设备包括处理器，该处理器与存储器耦合，该存储器用于存储计算机程序或指令，所述处理器用于执行存储器中的计算机程序或指令，使得该第一终端设备执行第一方面或第一方面的任意可能的实现方式中的方法。
本申请第六方面提供一种网络设备，该网络设备包括处理器，该处理器与存储器耦合，该存储器用于存储计算机程序或指令，所述处理器用于执行存储器中的计算机程序或指令，使得该网络设备执行第二方面或第二方面的任意可能的实现方式中的方法。
本申请第七方面提供了一种芯片，该芯片包括处理器和接口电路，该接口电路和该处理器耦合，该处理器用于运行计算机程序或指令，以实现如第一方面或第一方面的任意可能的实现方式、第二方面或第二方面的任意可能的实现方式中的方法，该接口电路用于与该芯片之外的其它模块进行通信。
本申请第八方面提供了一种通信系统，包括上述第一方面的方法中的第一终端设备(或者第一终端设备中的芯片)和上述第二方面的方法中的网络设备(或者网络设备中的芯片)。或者，该通信系统包括第五方面的第一终端设备和第六方面的网络设备。
本申请第九方面提供了一种计算机存储介质，该计算机存储介质中存储有指令，该指 令在计算机上执行时，使得计算机执行前述第一方面或第一方面的任意可能的实现方式、第二方面或第二方面的任意可能的实现方式中的方法。
本申请第十方面提供了一种计算机程序产品，该计算机程序产品在计算机上执行时，使得计算机执行前述第一方面或第一方面的任意可能的实现方式、第二方面或第二方面的任意可能的实现方式中的方法。
其中，第三、第五、第七至第十方面所带来的技术效果可参见第一方面或第一方面不同可能实现方式所带来的技术效果，此处不再赘述。
其中，第四、第六、第七至第十方面所带来的技术效果可参见第二方面或第二方面不同可能实现方式所带来的技术效果，此处不再赘述。
附图说明
图1为本申请实施例中的一种通信系统示意图；
图2为本申请实施例中随机接入过程的一个示意图；
图3为本申请实施例中随机接入过程的另一示意图；
图4为本申请实施例中随机接入过程的另一示意图；
图5为本申请实施例中数据传输方法一个流程示意图；
图6为本申请实施例中多个第一终端设备与第二终端设备之间的交互示意图；
图7为本申请实施例中簇成员的资源信息和簇头的资源信息之间的一种映射关系示意图；
图8为本申请实施例中簇成员的资源信息和簇头的资源信息之间的另一种映射关系示意图；
图9为本申请实施例中第一终端设备一个结构示意图；
图10为本申请实施例中第一终端设备另一结构示意图；
图11为本申请实施例中网络设备一个结构示意图；
图12为本申请实施例中第一终端设备另一结构示意图；
图13为本申请实施例中网络设备另一结构示意图。
具体实施方式
本申请实施例提供了一种数据传输方法及相关设备，可以应用于成簇随机接入场景，避免终端设备对响应信息的多次接收，降低终端设备在随机接入过程中的能耗。
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。
图1给出了一种通信系统示意图。该通信系统可以包括：网络设备101，簇102至104。其中，簇102包括簇头1021以及簇成员1022，簇103包括簇头1031以及簇成员1032，簇104包括簇头1041以及簇成员1042。本申请实施例中簇头相当于第二终端设备，簇成员相当于第一终端设备。
为了方便理解，以簇102为例详细描述成簇随机接入的过程。
第一步：簇成员1022接收网络设备101广播的多个同步信号块(synchronization signal bloc，SSB)，簇成员1022判断搜索到的若干个SSB中哪个或哪几个SSB的参考信号的接收功率(reference signal received power，RSRP)高于所配置的预设阈值，在高于预设阈值的SSB中选择一个SSB，确定SSB索引(SSB index)。如果没有满足条件的SSB(即所有SSB的RSRP都小于所配置的预设阈值)，则终端在所有SSB中随机选择一个SSB.
第二步：簇成员1022将接入请求发送给簇头1021。
第三步：簇头1021将多个簇成员1022的接入请求打包发送给网络设备101。
第四步：网络设备101接收到簇头1021发送的包含簇成员1022的上行数据的数据包，网络设备101向簇成员1022发送响应消息。
本申请实施例中，仅以一个网络设备101以及三个簇102至104为例进行示意性说明。在实际应用中，本申请实施例中的通信系统可以有更多的网络设备以及簇，当然，簇可以包括更多或更少的簇头以及簇成员。本申请实施例对网络设备、簇、簇头以及簇成员的数目不进行限定。
本申请实施例中的网络设备101可以是任意一种具有无线收发功能的设备。包括但不限于：基站(例如第五代通信系统中的基站、未来通信系统中的基站等)、射频拉远单元(remoteradio unit，RRU)、无线中继节点、无线回传节点、传输节点(transmission reference point，TRP)、云无限接入网络(cloud radio access network，CRAN)场景下的无线控制器等，具体此处不作限定。
本申请实施例中的簇头1021、1031以及1041和/或簇成员1022、1032以及1042相当于终端设备，该终端设备可以是指向用户提供语音和/或数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。终端设备可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与网络设备交换语言和/或数据。例如，个人通信业务(personal communication service，PCS)电话、无绳电话、会话发起协议(SIP)话机、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)等设备。终端设备也可以称为系统、订户单元(SubscriberUnit)、订户站(SubscriberStation)，移动站(MobileStation)、移动台(Mobile)、远程站(RemoteStation)、接入点(AccessPoint)、远程终端(RemoteTerminal)、接入终端(AccessTerminal)、用户终端(UserTerminal)、用户代理(UserAgent)、用户设备(UserDevice)、或用户装备(UserEquipment)。另外，终端设备也可以是用于实现UE功能的芯片系统。
本申请实施例仅以网络设备为基站，簇头和簇成员为终端设备为例进行说明。
为了更好的理解本申请实施例中的数据传输方法，对本申请实施例中涉及的随机接入过程的进行说明：
随机接入(random access，RA)：在LTE或5G通信系统中，用于未接入网络(或者处于idle态或者inactive态)的设备与网络建立连接的信息交互机制(或者过程)。分为基于竞争的随机接入和非竞争的随机接入。基于竞争的随机接入通常分为4步(如图2所示)， 每一步对应一个消息：包括消息1(message 1，Msg1)、消息2(message 2，Msg2)、消息3(message 3，Msg3)以及消息4(message 4，Msg4)，分别承载不同的信令或者信息。基于非竞争的随机接入只有前2步。另外，为了降低4步基于竞争的随机接入的接入时间，进一步有2步随机接入(如图3以及图4所示)。在2步随机接入中，由消息A和消息B两个组成，其中消息A(message A，MsgA)中包括前导和第一个数据信息(例如类似4步随机接入中的消息1和消息3)，消息B(message B，MsgB)中包括针对MsgA中的preamble的响应和针对PUSCH的响应中的至少一种。
请参阅图2，终端的四步随机接入过程如下：
步骤一：终端向基站发送随机接入前导(preamble或者sequence)，即上述描述的Msg1。终端根据Preamble的发送时机，计算随机接入-无线网络临时标识(random access-radio network temporary identity，RA-RNTI)。Preamble是一个序列，其作用是通知基站有一个随机接入请求，并使得基站能估计终端与基站之间的传输时延，以便基站校准上行定时(uplink timing)并将校准信息通过定时提前(timing advance，TA)指令告知终端。
步骤二：基站在检测到Preamble后，计算出与步骤一中相同的RA-RNTI，向终端发送随机接入响应，即上述描述的Msg2。随机接入响应控制信息用RA-RNTI加扰，数据信道内容包含步骤一中所收到Preamble的索引(preambleindex)、TA、上行资源分配信息和临时的小区无线网络临时标识(temporarycell-radio network tempory identity，TC-RNTI)中的至少一种。
步骤三；终端接收随机接入响应，终端如果监听到RA-RATI加扰的DCI，则终端接收该DCI调度的PDSCH(即随机接入响应)，如果该随机接入响应中的Preamble Index所指示的随机接入Preamble和步骤一中终端向基站发送的Preamble相同，则终端认为该随机接入响应是针对自己的随机接入响应。如果随机接入响应PDSCH中的子协议数据单元(subPDU)中的包头中携带的preamble index与终端发送时所选的preamble index匹配，则终端根据随机接入响应中的上行调度授权(UL grant)指示在分配的上行资源发送上行消息，例如在Msg3中发送PUSCH，即上述描述的Msg3。终端在Msg3中可以发起RRC连接请求。
步骤四：基站接收到终端的上行消息，向接入成功的终端返回冲突解决消息，即上述描述的Msg4。冲突解决消息的控制信息用TC-RNTI加扰，基站在冲突解决消息中将携带Msg3中的唯一标识以指定接入成功的终端，而其他没有接入成功的终端将重新发起随机接入。基站可以通过Msg4对终端进行RRC配置。
请参阅图3以及图4，终端的两步随机接入过程如下
步骤一：终端发送MsgA，其中MsgA包括preamble和PUSCH。在一实施例中，发送Msg A相当于发送了四步随机接入过程中的Msg1和Msg3
步骤二：终端接收网络侧对于MsgA的响应MsgB，其中MsgB的响应内容可以包括针对preamble的响应和针对PUSCH的响应中的至少一种。
响应消息根据基站对MsgA中preamble的检测和PUSCH的译码情况可能有两种，后续的处理流程如下：
如果基站对preamble检测成功，对PUSCH译码成功，如图3所示，基站发送的响应消息 包含对preamble和/或PUSCH的响应，被称为成功随机接入响应(successRAR)，终端确认successRAR中所携带的竞争解决正确后，终端发起混合自动重传请求(hybrid automatic repeat reQuest，HARQ)反馈，即终端向基站发送确认(acknowledge，ACK)，确认随机接入成功；
如果基站只对preamble检测成功，而PUSCH译码错误，如图4所示，基站发送的响应消息是针对preamble的响应，被称为回退随机接入响应(fallbackRAR)，终端根据fallbackRAR中UL grant的指示发起Msg3的传输，一般地，Msg3PUSCH中的数据是MsgA PUSCH中的数据，基站对Msg3PUSCH译码成功，终端发送竞争解决信息Msg4，终端确认Msg4中所携带的竞争解决正确后，终端向基站发送ACK，确认随机接入成功。这一过程可以被称两步随机接入过程中的回退。
在两步随机接入过程中，等同于四步随机接入过程的Msg2的内容和Msg4的内容在MsgB中一起发送给终端。相对四步随机接入过程来说，两步随机接入过程只需要终端和基站之间进行一次交互过程，可以缩短终端接入网络的时延。
无论四步随机接入或者两步随机接入，基站都会向终端发送响应信息。以四步随机接入为例，基站向终端发送响应消息(Msg2)时，响应信息的物理下行控制信道(physical downlink control channel，PDCCH)(携带下行控制信息DCI)采用RA-RNTI加扰，RA-RNTI根据物理随机接入信道(physical random access channel，PRACH)的时频资源计算获得，而基站发送的响应信息中包含多个终端的响应消息，每个终端的响应消息被放在承载于PDSCH的一个子协议数据单元(subprotocol data units，subPDU)中。每个子协议数据单元subPDU包含包头(mac subheader)和内容(mac CE)，其中包头中携带终端所选择的随机接入前导索引(random access preamble identity，RAPID)，终端接收到响应消息后，通过比对包头中的RAPID，确认该subPDU是否是自己的subPDU。
在图1的通信系统中，基站向簇成员发送响应信息可能有以下几种方案：
方案1：基站向簇头发送响应消息，该响应消息中携带针对收到的每个簇成员的上行数据的响应消息。簇头收到该响应信息，对响应信息进行解调后，根据响应信息中携带的指示信息，向簇成员发送响应响应消息。
方案2：基站直接向监听响应信息的簇成员直接发送响应信息，该响应消息是用户级的，即基站针对每个簇成员发送响应消息。
而对于上述两种方案，都存在问题：
方案1中，簇成员等待簇头对响应信息的转发，该方案中对簇头的能力要求较高，簇头需要对相应信息进行解调后再发送给每个簇成员，对于整个数据传输过程来说，数据传输时延高。
方案2中，对簇成员来说，方案最优，但基站需要给每个簇成员分配可识别的标识信息(比如DCI需要不同的RNTI加扰)，基站的信息开销比较大。
为了解决上述问题，本申请实施例提供了一种数据传输方法及相关设备，可以降低终端设备在随机接入过程中的能耗。
请参阅图5，为本申请实施例中一种数据传输方法的一个示意图。
本申请实施例仅以1个簇、1个第二终端设备(簇头)、3个第一终端设备(簇成员)以及1个基站为例进行说明，可以理解的是，在实际应用中，簇、第二终端设备、第一终端设备以及基站的数量可以更多或更少，具体数量此处不做限定。
本申请实施例中的数据传输方式可以应用于两步随机接入或四步随机接入等方式中，具体此处不做限定。
501、第一终端设备向第二终端设备发送第一信息。
本申请实施例中的第一信息有多种情况，下面分别描述：
第一终端设备向第二终端设备发送第一信息，该第一信息包括第一终端设备的SSB信息和/或第一标识。该SSB信息可以包括一个SSB信息，也可以包括多个SSB信息，该第一标识可以包括一个第一终端设备的标识，也可以包括多个第一终端设备的标识，具体此处不做限定。
第一终端设备向第二终端设备发送第一信息时，第二终端设备可以根据第一终端设备发送的第一信息识别第一终端设备发送第一信息的目的，这里举例说明，例如，第二终端设备接收第一终端设备发送的第一信息，若第一信息中携带的SSB信息，则第二终端设备可以确定第一终端设备想要向基站发起随接入请求；又例如，若第一终端设备发送的第一信息还携带有RRC信息(例如：连接建立请求或连接恢复请求等)，则第二终端设备可以确定第一终端设备想要向基站发起随接入请求。
为了方便理解，以1个簇、3个第一终端设备(簇成员)、1个第二终端设备(簇头)以及3个第一终端设备选择2个SSB为例说明第一信息的三种实施方式。
第一实施方式：第一信息包括第一终端设备的SSB信息。
簇成员在随机接入之前，簇成员接收基站广播的多个SSB，簇成员判断搜索到的若干个SSB中哪个或哪几个SSB的参考信号的RSRP值高于所配置的预设阈值，在高于预设阈值的SSB中选择一个SSB，确定SSB index。如果没有满足条件的SSB(即所有SSB的RSRP都小于所配置的预设阈值)，则终端在所有SSB中随机选择一个SSB
本申请实施例中的预设阈值由网络侧配置，具体此处不做限定。
示例性的，簇成员1确定第一SSB(即簇成员1的SSB信息包括第一SSB信息)，簇成员2确定第一SSB(即簇成员2的SSB信息包括第一SSB信息)，簇成员3确定第二SSB(即簇成员3的SSB信息包括第二SSB信息)。即簇成员1与簇成员2选择了相同的第一SSB，簇成员3选择了第二SSB。
簇成员1向簇头发送第一信息，该第一信息用于簇成员1接入基站，该第一信息包括第一SSB信息。
簇成员2向簇头发送第一信息，该第一信息用于簇成员2接入基站，该第一信息包括第一SSB信息。
簇成员3向簇头发送第一信息，该第一信息用于簇成员3接入基站，该第一信息包括第二SSB信息。
本申请实施例中的SSB信息可以是SSB索引，也可以是SSB的时频域信息，在实际应用中，还可以是其他与SSB相关的信息，具体此处不做限定。
第二实施方式：第一信息包括第一终端设备的第一标识。
簇成员向簇头发送第一信息，该第一信息包括簇成员的第一标识。
本申请实施例中给的第一标识可以是簇成员在所在簇的簇内标识，也可以是簇成员的全网唯一标识等，例如：第一标识是国际移动用户识别码(international mobile subscriber identity，IMSI)等，具体此处不做限定。
第三实施方式：第一信息包括第一终端设备的第一SSB信息以及第一标识。
簇成员向簇头发送第一信息，该第一信息包括簇成员的SSB信息以及簇成员的第一标识。
示例性的，第一信息包括簇成员1与簇成员2选择的第一SSB信息、簇成员3选择的第二SSB信息、簇成员1的第一标识、簇成员2的第一标识以及簇成员3的第一标识。
本申请实施例仅以上述三种第一信息为例进行示意性说明，可以理解的是，在实际应用中，第一信息可能还有其他方式，具体此处不做限定。
502、第二终端设备向网络设备发送第二信息。
簇头接收簇成员发送的第一信息之后，簇头向基站发送第二信息，该第二信息包括第一信息中的至少一部分。
簇头可以根据簇成员发送的第一信息的内容(SSB信息或RRC信息)，确定向基站发送随机接入请求，簇头向基站发起随机接入的方式可以是两步随机接入，或者四步随机接入，或者其他接入方式，具体此处不做限定。
这里对簇头发送第二信息的可能方式举例说明，例如簇头采用两步随机接入，第二信息通过两步随机接入的MsgA中的PUSCH发送；又例如簇头采用四步随机接入，第二信息通过四步随机接入的Msg3中的PUSCH发送；簇头也可以选择其他接入方式，具体在此处不做限定。
可选地，该第二信息中包括簇成员的SSB信息和/或第一标识。
本申请实施例中第二信息有多种情况，具体与第一信息的实施方式对应。
若第一信息为第一实施方式，第二信息包括簇成员的SSB信息。示例性的，第二信息包括簇成员1与簇成员2选择的第一SSB信息以及簇成员3选择的第二SSB信息。
若第一信息为第二实施方式，第二信息包括簇成员的第一标识。示例性的，第二信息包括簇成员1、簇成员2以及簇成员3的第一标识。
若第一信息为第三实施方式，第二信息包括簇成员的SSB信息以及第一标识。示例性的，第二信息包括簇成员1与簇成员2选择的第一SSB信息、簇成员3选择的第二SSB信息、簇成员1的第一标识、簇成员2的第一标识以及簇成员3的第一标识。
换句话说，当簇成员为多个时，簇头将多个簇成员的第一信息打包发送给基站，即簇头将多个簇成员的第一信息同时发送给基站。
503、网络设备向第一终端设备发送下行控制信息DCI。
基站接收簇头发送的第二信息后，可以获知簇成员选择的SSB信息和/或簇成员的第一标识。进而确定向簇成员发送DCI，该DCI用于调度与第二信息对应的响应信息。
本申请中的DCI有多种实施方式，DCI可以是下面描述的三种实施方式中的至少一种， 下面分别描述：
第一实施方式：DCI中包括SSB信息。
基站接收到的第二信息中包括簇成员选择的SSB信息，则基站向簇成员发送DCI，该DCI中包括簇成员对应的SSB信息。
示例性的，延续上述举例，基站接收第二信息，该第二信息中包括簇成员1与簇成员2选择的第一SSB信息以及簇成员3选择的第二SSB信息。则基站向簇成员1与簇成员2发送DCI时，DCI中包括簇成员1与簇成员2选择的第一SSB信息。基站向簇成员3发送DCI时，DCI中包括簇成员3选择的第二SSB信息。
可选地，该DCI可以使用第二序列加扰得到，该第二序列与簇头向基站发送第二信息所使用的第一目标资源相关，例如，簇头采用两步随机接入时，第一目标资源可以是两步随机接入请求信息MsgA中PRACH的资源信息，如PRACH的时频资源，和/或PRACH所选的前导信息，或者是MsgA中PUSCH的资源信息，如PUSCH的时频资源，和/或簇头发送第二信息时所携带的解调参考信号(demodulation reference signal，DMRS)信息(例如，DMRS端口号或DMRS序列)等；又例如，簇头采用四步随机接入时，第一目标资源可以是四步随机接入请求信息Msg1中PRACH的资源信息，如PRACH的时频资源，PRACH所选的前导信息。若第二信息是通过随机接入过程意外的PUSCH传输方式发送给基站时，第一目标资源可以是PUSCH的时频资源，和/或者与该PUSCH关联的DMRS信息(例如，DMRS端口号或DMRS序列)等。具体此处不做限定。
示例性的，第二序列为组无线网络临时标识(group-radio network tempory identity，G-RNTI)，即簇成员可以通过G-RNTI来识别该DCI是不是该簇成员所在簇的DCI，具体可以是簇成员监听DCI，如果用G-RNTI解扰成功，说明该DCI是该簇成员所在簇的DCI。簇成员再根据SSB信息判断是否接收该DCI调度的响应信息，如果该DCI包括第一SSB信息，则簇成员1与簇成员2确定将接收该DCI调度的响应信息(即该DCI调度的响应信息是基站发送给簇成员1与簇成员2的)。
示例性的，采用下述公式一或公式二生成G-RNTI：
公式一：
G-RNTI＝1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id。
公式二：
Figure PCTCN2020109823-appb-000001
其中，s_id是每个PRACH传输机会(PRACH occasion，RO)的第一个OFDM符号的索引号(0≤s_id<14)；t_id是一个系统帧中PRACH传输机会所在的第一个时隙(slot)的索引号(0≤t_id<80)，slot的取值与在载波间隔有关系，决定子载波间隔的参数μ根据TS 38.211中5.3.2节决定；f_id是PRACH传输机会在频域的资源索引号(0≤f_id<8)；ul_carrier_id是用于随机接入前导序列传输的上行载波索引号{0表示正常上行载波(normal UL carrier，NUL)，1表示补充上行载波(supplementary UL carrier，SUL)}。
上述公式是以RO为例进行的举例说明，同样的，G-RNTI在两步随机接入中也可以考虑 采用PUSCH的发送时隙PO的时频资源信息获得，与上数公式一和公式二类似，这里不做限定。
在本申请实施例中，PRACH传输机会是用于传输随机接入前导序列的时频资源。
本申请实施例中生成G-RNTI的生成方式有多种，上面两种只是举例，在实际应用中，还有其他生成G-RNTI的方式，具体此处不做限定。另外，G-RNTI只是第二序列的一种举例，对于第二序列此处不做限定。
第二实施方式：DCI中包括第一标识。
基站接收到的第二信息中包括簇成员的第一标识，则基站向簇成员发送DCI，该DCI中包括簇成员的第一标识。
可选地，该第一标识为簇成员所在簇的簇内标识或簇成员的全网唯一标识(例如IMSI)等。
可选地，当基站确定一个簇成员对应一个SSB时(即不存在簇成员1与簇成员2都选择第一SSB的情况)，通过DCI中包括第一标识的方式，簇成员也可以根据DCI是否包括自身的第一标识来判断是否接收该DCI调度的响应信息。
可选地，该DCI使用第二序列或其他序列(例如第一序列)加扰得到。
第三实施方式：DCI使用第一序列加扰得到，该第一序列与SSB信息相关。
基站接收到的第二信息中包括簇成员选择的SSB信息，则基站向簇成员发送DCI，该DCI使用第一序列加扰得到，该第一序列与簇成员对应SSB的索引和/或SSB的时频域信息相关。
可选地，该第一序列的生成与SSB的索引或第一标识相关。
可选地，该第一序列还可以与簇头向基站发送第二信息所使用的第一目标资源相关，第二序列还可以与其他资源相关，例如，簇头采用两步随机接入时，第一目标资源可以是两步随机接入请求信息MsgA中PRACH的资源信息，如PRACH的时频资源，和/或PRACH所选的前导信息，或者是MsgA中PUSCH的资源信息，如PUSCH的时频资源，和/或第二终端发送第二信息时所携带的DMRS信息(例如，DMRS端口号或DMRS序列)等；又例如，簇头采用四步随机接入时，第一目标资源可以是四步随机接入请求信息Msg1PRACH的资源信息，如PRACH的时频资源，PRACH所选的前导信息。具体此处不做限定。
示例性的，第一序列为G-S-RNTI，即簇成员可以通过G-S-RNTI来识别该DCI调度的响应信息是不是该簇成员的响应信息，具体可以是簇成员监听DCI，如果用G-S-RNTI解扰成功，说明该DCI调度的响应信息是该簇成员的响应信息。如果用G-S-RNTI解扰失败，说明该DCI调度的响应信息不是该簇成员的响应信息。
示例性的，采用下述公式三或公式四生成G-S-RNTI：
公式三：
G-S-RNTI＝1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id+offset1。
其中，offset1是根据SSB信息获得的偏移值，使得offset1是使得G-S-RNTI的取值与其他RNTI取值不冲突，其他变量的取值同公式一中的描述。
公式四：
Figure PCTCN2020109823-appb-000002
其中，SSB_index为根据SSB信息获取的值，MAX_SSB_IDX为SSB_index的最大取值，offset2是使得G-S-RNTI的取值与其他RNTI取值不冲突的偏移值。
本申请实施例中生成G-S-RNTI的生成方式有多种，上面两种只是举例，在实际应用中，还有其他生成G-S-RNTI的方式，具体此处不做限定。
本申请实施例仅以上述三种DCI为例进行示意性说明，可以理解的是，在实际应用中，DCI可能还有其他方式，具体此处不做限定。
504、第一终端设备根据DCI是否与SSB信息和/或第一标识相关联确认是否接收该DCI调度的响应信息。
簇成员监听DCI，根据DCI是否与SSB信息和/或第一标识相关联确认是否接收该DCI调度的响应信息。
若DCI与SSB信息和/或第一标识相关联，簇成员确定该DCI调度的响应信息是自身的响应信息，进而接收该DCI调度的响应信息。
若DCI与SSB信息和/或第一标识无关联，簇成员确定该DCI调度的响应信息不是自身的响应信息，进而丢弃该DCI调度的响应信息。
本申请实施例中DCI与SSB信息和/或第一标识相关联的方式有很多，与步骤503中的DCI的三种方式类似，即满足下列条件之一，簇成员确定该DCI与SSB信息和/或第一标识相关联。步骤504中的条件有如下三种实施方式：
第一实施方式：DCI中包括SSB信息。
簇成员可以根据DCI中是否包括自身选择的SSB信息判断该DCI调度的响应信息是否是自己的响应信息。
示例性的，延续上述举例，簇成员可以根据DCI中是否包括该簇成员选择的SSB信息来判断该DCI调度的响应信息是不是自身的响应信息，簇成员1与簇成员2在接收到DCI后，如果该DCI中包括第一SSB信息，说明该DCI调度的响应信息是簇成员1与簇成员2的响应信息。簇成员3在接收到DCI后，如果该DCI中包括第二SSB信息，说明该DCI调度的响应信息是簇成员3的响应信息。因此，簇成员可以根据DCI中的SSB信息提前获知是否接收接收该DCI调度的响应信息。
可选地，该DCI可以使用第二序列加扰得到，第二序列具体可以是G-RNTI。
示例性的，第一SSB信息包括第一SSB的索引且第一SSB的索引为1，第二SSB信息包括第二SSB的索引且第二SSB的索引为2，延续上述举例，簇成员1与簇成员2监听到用G-RNTI加扰的DCI，如果DCI中携带的SSB索引为1，则簇成员1与簇成员2对DCI调度的PDSCH进行解调，获得PDSCH中所携带的各自的响应信息。如果DCI中携带的SSB索引为2，则簇成员1与簇成员2不再接收DCI所调度的PDSCH，或者不再对PDSCH解调，可以丢弃对应的PDSCH。相对应的，簇成员3监听到G-RNTI加扰的DCI，如果DCI中携带的SSB索引为2，则簇成员3对DCI调度的PDSCH进行解调，获得PDSCH中所携带的各自的响应消息。如果DCI中携带的SSB索引为1，则簇成员3不再接收DCI所调度的PDSCH，或 者不再对PDSCH进行解调，可以丢弃对应的PDSCH。
第二实施方式：DCI中包括第一标识。
簇成员可以根据DCI中是否包括自身的第一标识判断该DCI调度的响应信息是否是自己的响应信息。
可选地，该第一标识为第一终端设备所在簇的簇内标识或第一终端设备的全网唯一标识(例如IMSI)等。
可选地，该DCI使用G-RNTI或G-S-RNTI加扰得到。
第三实施方式：第一终端设备使用第一序列解扰DCI成功。
簇成员使用第一序列监听DCI，如果解扰成功，说明该DCI与SSB信息相关联。如果解扰失败，说明该DCI与SSB信息无关联。
示例性的，第一序列为G-S-RNTI，即簇成员可以通过G-S-RNTI来识别该DCI调度的响应信息是不是该簇成员的响应信息，具体可以是簇成员监听DCI，如果用G-S-RNTI解扰成功，说明该DCI调度的响应信息是该簇成员的响应信息。
示例性的，第一序列包括第一SSB的索引，延续上述举例，簇成员1与簇成员2使用第一序列监听DCI，如果簇成员1和簇成员2使用含有第一SSB索引的第一序列解扰DCI成功，说明该DCI调度的响应信息是簇成员1与簇成员2的响应信息。如果簇成员1和簇成员2使用含有第一SSB索引的第一序列解扰DCI失败，说明该DCI调度的响应信息不是簇成员1与簇成员2的响应信息，则簇成员1与簇成员2不再接收DCI所调度的PDSCH，或者不再对PDSCH解调，可以丢弃对应的PDSCH。相对应的，簇成员3使用含有第二SSB索引的第一序列解扰DCI成功，说明该DCI调度的响应信息是簇成员3的响应信息。如果簇成员3使用含有第二SSB索引的第一序列解扰DCI失败，说明该DCI调度的响应信息不是簇成员3的响应信息，则簇成员3不再接收DCI所调度的PDSCH，或者不再对PDSCH解调，可以丢弃对应的PDSCH。
本申请实施例仅以上述三种条件为例进行示意性说明，可以理解的是，在实际应用中，可能还有其他条件，具体此处不做限定。
上述条件中，若第一序列和/或第二序列与簇头向基站发送第二信息时所使用的第一目标资源相关，簇成员想要通过第一序列或第二序列解扰DCI，首先要确定簇头向基站发送第二信息时所使用的第一目标资源。
簇成员可以通过资源映射的方式确定簇头向基站发送第二信息时所使用的第一目标资源。
在成簇接入过程中，簇成员发送数据的资源信息与簇头发送数据的时频资源之间存在映射关系。
本申请实施例中的映射关系有多种，下面分别描述：
1、簇成员发送第一信息的时频资源位于一定时域范围内；簇头在该一定时域范围内收到簇成员的第一信息，簇头在对应的时频资源上将第二信息(即收到的簇成员的第一信息)发送给基站；
2、簇成员发送第一信息的时频资源位于一定的时频范围内，发送第一信息时所使用的 DMRS位于一定的DRMS资源池内；簇成员发送第一信息时的资源信息(确定的时频资源范围和DMRS资源池)对应于簇头发送第二信息的确定的时频资源，因此簇头在对应的时频资源上将第二信息(即收到的簇成员的第一信息)发送给基站。
上述两种映射关系只是举例，在实际应用中，还可以有其他方式的映射关系，具体此处不做限定。
本申请实施例中的映射关系可以是基站提前配置的，也可以是簇成员根据发送第一信息的时频资源位置以及预设的规则推定得出的，在实际应用中，还可以有其他设置方式，具体此处不做限定。其中，对于基站提前配置映射关系可以是基站通过广播信息向簇成员发送簇成员的资源配置信息，资源配置信息包括以下几种资源信息中的至少一种：簇成员发送上行数据时的时频资源信息(例如：时域周期、发送数据的时频资源大小、频域资源大小、频域资源数目等)，簇成员发送上行数据对应的DMRS信息(例如：DMRS端口号、DMRS序列等信息)，簇头发送数据或前导所使用的时频资源信息(例如：四步随机接入方式中的PRACH资源或者两步随机接入方式中的PRACH和PUSCH资源)，簇头发送数据时的前导资源信息(前导序列)等，簇头的资源信息为簇头用到的资源信息(第一资源)，簇成员的资源信息为簇成员用到的资源信息(即第二资源)。簇成员和/或簇头获知簇成员的资源信息和簇头的资源信息，以及簇成员的资源信息和簇头的资源信息之间的映射关系。
为了方便理解，下面结合图7与图8对第一终端设备根据第一资源与第二资源之间的映射关系确定第一目标资源的具体方式进行举例说明。
示例性的，第一资源包括第一时域资源，第二资源包括第二时域资源，第一目标资源包括第一目标时域资源。如图7所示，簇成员的资源信息和簇头的资源信息之间的映射关系可以是时域资源的映射关系(即第一时域资源与第二时域资源之间的映射关系)。预设的映射规则：簇头在簇成员1发送第一信息之后的第六个时隙上向基站发送第二信息，簇头在簇成员2发送第一信息之后的第五个时隙上向基站发送第二信息，簇头在簇成员3发送第一信息之后的第三个时隙上向基站发送第二信息。根据预设的映射规则，簇头收到簇成员1、簇成员2和簇成员3的第一信息后，簇头在确定的时域资源上向基站发送第二信息。簇成员也可以根据簇头发送第二信息的时域资源确定监听基站发送响应信息的时间窗起始位置。其中，第一目标时域资源为簇头向基站发送第二信息时所使用的时域资源。可以理解的是，簇成员1、簇成员2和簇成员3向簇头发送第一信息的时域资源可能不同或者相同，具体此处不做限定。
示例性的，第一资源包括第一时域资源，第二资源包括第二时域资源，第一目标资源包括第一目标时域资源。如图8所示，簇成员的资源信息和簇头的资源信息之间的映射关系，可以是一定周期内的用于簇成员发送第一信息的资源映射到用于簇头发送第二信息的资源上。即资源1相当于第一目标时域资源，第一时域资源包括资源1、资源2以及资源3。簇成员在周期1内向簇头发送第一信息，即簇头在周期1内收到簇成员的第一信息，则簇头在簇头可用的资源1上将收到的簇成员1、簇成员2以及簇成员3的数据转发给基站(即簇头在资源1上向基站发送第二信息)。同理，如果簇成员在周期2向簇头发送第一信息，簇成员将确定簇头将使用资源2向基站发送第二信息。
可以理解的是，上述图7与图8只是映射关系的两种举例，在实际应用中，映射关系的方式还有很多，此处不做限定。
505、网络设备向第一终端设备发送响应信息。
基站在向簇成员发送DCI后，可以选择同一SSB的簇成员对应的响应信息打包一起发送。基站发送响应信息所使用的时频资源可以是根据预设规则确定，也可以是基站设置的，具体此处不做限定。如果是基站设置的，基站可以向簇成员发送配置信息，这样，簇成员可以通过配置信息获知基站发送响应信息所使用的时频资源。
可选地，在成簇接入中，簇成员通过簇头转发实现网络接入，因此基站不需要给簇成员配置PRACH信息，比如前导。簇成员根据之前对DCI的判断决定是否接收该DCI调度的响应信息，簇成员在接收响应信息时，响应信息中的subPDU中携带的前导索引可能是簇头所选的前导索引，对簇成员来说，簇成员无法通过前导索引确认subPDU是否是自己的。因此，为了能够帮助簇成员快速识别响应信息中的subPDU，簇成员向簇头发送第一信息时，第一信息携带了簇成员的第一标识，且簇头向基站发送第二信息时，第二信息携带了簇成员的第一标识。进而基站向簇成员发送响应信息时，响应信息的subPDU的包头中可以携带簇成员的第一标识，簇成员接收响应信息后，可以根据第一标识识别subPDU，进一步提高了簇成员识别自身响应信息的效率。
本申请实施例中各步骤有多种情况，例如：步骤501中的第一信息有三种实施方式举例，步骤502中的第二信息有三种实施方式举例，步骤503中的DCI有三种实施方式举例，步骤504中簇成员确定该DCI与SSB信息和/或第一标识相关联的条件的三种实施方式举例。其中，步骤501中第一信息的三种实施方式举例与步骤502中第二信息的三种实施方式举例相对应。步骤503中的DCI有三种实施方式举例与步骤504中簇成员确定该DCI与SSB信息和/或第一标识相关联的条件的三种实施方式举例相对应。但是，除了上述两种相对应的情况，其余各步骤的情况可以组合，例如：步骤501中的第一信息的三种实施方式举例可以与步骤503中的DCI有三种实施方式举例可以组合使用。举例说明，当第一信息是第一实施方式时，DCI可以是第一实施方式或者第三实施方式中的一种；或者当第一信息是三时，DCI可以是三种情况中的其中一种。
本申请实施例中，簇成员向簇头发送第一信息，若簇头收到多个族成员发送的第一信息，族头可以向基站发送包含该多个族成员发送的第一信息的第二信息，簇成员接收基站发送的响应信息。该响应信息包括针对一个或者多个族成员发送的第一信息的响应信息。该响应信息是基站收到族头发送的第二信息后发送的，也可以认为该响应信息是第二信息对应的响应信息。
本申请实施例中，一方面：第一终端设备可以直接接收网络设备发送的响应信息，不用第二终端设备在转发响应信息，降低第一终端设备在随机接入过程中的时延。另一方面：簇成员根据接收到的与SSB信息和/或第一标识关联的来自基站的DCI接收响应信息，这样簇成员可以根据接收到的DCI提前获知是否接收该DCI调度的响应信息，即簇成员可以根据DCI识别是不是自身的响应信息，避免不必要响应信息的重复接收，有利于簇成员的节省能耗。进一步的，簇成员还可以根据响应信息中的第一标识快速识别自身的响应信息。
上面对本申请实施例中的数据传输方法进行了描述，下面对本申请实施例中的第一终端设备进行描述，请参阅图9，本申请实施例中第一终端设备900一个实施例包括：
发送单元901，用于向第二终端设备发送第一信息，第一信息包括第一终端设备的同步信号块SSB信息和/或第一终端设备的第一标识；
接收单元902，还用于根据接收到的与SSB信息和/或第一标识关联的来自网络设备的下行控制信息DCI接收响应信息，响应信息与第一信息对应。
本实施例中，第一终端设备中各单元所执行的操作与前述图2至图6所示实施例中描述的类似，此处不再赘述。
本实施例中，一方面：接收单元902可以直接接收网络设备发送的响应信息，不用第二终端设备在转发响应信息，降低第一终端设备在随机接入过程中的时延。另一方面：接收单元902根据接收到的与SSB信息和/或第一标识关联的来自网络设备的下行控制信息DCI接收响应信息，这样接收单元902可以根据接收到的DCI提前获知是否接收该DCI调度的响应信息，即第一终端设备可以根据DCI识别DCI所调度的PDSCH是不是自身的响应信息，避免不必要响应信息的重复接收，有利于第一终端设备节省能耗。
请参阅图10，本申请实施例中第一终端设备1000另一实施例包括：
发送单元1001，用于向第二终端设备发送第一信息，第一信息包括第一终端设备的同步信号块SSB信息和/或第一终端设备的第一标识；
接收单元1002，还用于根据接收到的与SSB信息和/或第一标识关联的来自网络设备的下行控制信息DCI接收响应信息，响应信息与第一信息对应。
本实施例中的第一终端设备还包括：
处理单元1003，用于监听使用第一序列加扰的DCI，第一序列与SSB信息相关。
处理单元1003，还用于根据第一资源与第二资源之间的映射关系确定第一目标资源，第一资源用于第二终端设备向网络设备传输数据所使用的时频资源，第二资源用于第一终端设备向第二终端设备传输数据所使用的时频资源。
可选地，若DCI中包括SSB信息，接收单元1002具体用于接收DCI调度的响应信息。
可选地，第一信息还包括第一标识，响应信息包括第一标识，第一标识与第一终端设备一一对应。
可选地，若DCI包括第一标识，接收单元1002具体用于接收DCI调度的响应信息。
可选地，DCI使用第二序列加扰得到，第二序列与第二终端设备向网络设备发送第二信息所使用的第一目标资源相关，第二信息包括第一信息的至少一部分。可以理解的是，第二信息还可以用于第一终端设备接入网络设备。可选地，SSB信息包括SSB的索引和/或SSB的时频域信息。
本实施例中，第一终端设备中各单元所执行的操作与前述图2至图6所示实施例中描述的类似，此处不再赘述。
本实施例中，一方面：接收单元1002可以直接接收网络设备发送的响应信息，不用第二终端设备在转发响应信息，降低第一终端设备在随机接入过程中的时延。另一方面：接收单元1002根据接收到的与SSB信息和/或第一标识关联的来自网络设备的下行控制信息 DCI接收响应信息，这样接收单元1002可以根据接收到的DCI提前获知是否接收该DCI调度的响应信息，即第一终端设备可以根据DCI识别DCI所调度的PDSCH是不是自身的响应信息，避免不必要响应信息的重复接收，有利于第一终端设备节省能耗。
请参阅图11，本申请实施例中网络设备1100一实施例包括：
接收单元1101，用于接收第二终端设备发送的第二信息，第二信息包括第一终端设备的同步信号块SSB信息和/或第一终端设备的第一标识，
发送单元1102，还用于向第一终端设备发送DCI，DCI用于调度与第二信息对应的响应信息；
发送单元1102，还用于向第一终端设备发送响应信息。
可选地，第二信息包括SSB信息，DCI中包括SSB信息。
可选地，第二信息还包括第一标识，响应信息包括第一标识，第一标识与第一终端设备一一对应。
可选地，第二信息包括第一标识，DCI中包括第一标识。
可选地，DCI使用第一序列加扰得到，第一序列与SSB信息相关。
可选地，DCI使用第二序列加扰得到，第二序列与第二终端设备向网络设备发送第二信息所使用的第一目标资源相关。
可选地，SSB信息包括SSB的索引和/或SSB的时频域信息。
可选地，响应信息包括至少两个第一终端设备的响应信息，至少两个第一终端设备所对应的SSB相同。
本实施例中，网络设备中各单元所执行的操作与前述图2至图6所示实施例中描述的类似，此处不再赘述。
本实施例中，发送单元1102根据接收到的第二信息向第一终端设备发送DCI和响应信息，一方面：不用第二终端设备在转发响应信息，发送单元1102直接向第一终端设备发送响应信息，降低第一终端设备在随机接入过程中的时延。另一方面：第一终端设备可以根据接收到的DCI提前获知是否接收该DCI调度的响应信息，即第一终端设备可以根据DCI识别DCI所调度的PDSCH是不是自身的响应信息，避免不必要响应信息的重复接收，有利于第一终端设备节省能耗。
请参阅图12，本申请实施例提供了另一种通信设备，具体该通信设备可以为终端设备，为了便于说明，仅示出了与本申请实施例相关的部分，具体技术细节未揭示的，请参照本申请实施例方法部分。该终端设备可以为包括手机、平板电脑、个人数字助理(personal digital assistant，PDA)、销售终端设备(point of sales，POS)、车载电脑等任意终端设备，以终端设备为手机为例：
图12示出的是与本申请实施例提供的终端设备相关的手机的部分结构的框图。参考图12，手机包括：射频(Radio Frequency，RF)电路1210、存储器1220、输入单元1230、显示单元1240、传感器1250、音频电路1260、无线保真(wireless fidelity，WiFi)模块1270、处理器1280、以及电源1290等部件。本领域技术人员可以理解，图12中示出的手机结构并不构成对手机的限定，可以包括比图示更多或更少的部件，或者组合某些部件， 或者不同的部件布置。
下面结合图12对手机的各个构成部件进行具体的介绍：
RF电路1210可用于收发信息或通话过程中，信号的接收和发送，特别地，将基站的下行信息接收后，给处理器1280处理；另外，将设计上行的数据发送给基站。通常，RF电路1210包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器(Low Noise Amplifier，LNA)、双工器等。此外，RF电路1210还可以通过无线通信与网络和其他设备通信。上述无线通信可以使用任一通信标准或协议，包括但不限于全球移动通讯系统(Global System of Mobile communication，GSM)、通用分组无线服务(General Packet Radio Service，GPRS)、码分多址(Code Division Multiple Access，CDMA)、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)、长期演进(Long Term Evolution，LTE)、电子邮件、短消息服务(Short Messaging Service，SMS)等。
存储器1220可用于存储软件程序以及模块，处理器1280通过运行存储在存储器1220的软件程序以及模块，从而执行手机的各种功能应用以及数据处理。存储器1220可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外，存储器1220可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
输入单元1230可用于接收输入的数字或字符信息，以及产生与手机的用户设置以及功能控制有关的键信号输入。具体地，输入单元1230可包括触控面板1231以及其他输入设备1232。触控面板1231，也称为触摸屏，可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板1231上或在触控面板1231附近的操作)，并根据预先设定的程式驱动相应的连接装置。可选的，触控面板1231可包括触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给处理器1280，并能接收处理器1280发来的命令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板1231。除了触控面板1231，输入单元1230还可以包括其他输入设备1232。具体地，其他输入设备1232可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆等中的一种或多种。
显示单元1240可用于显示由用户输入的信息或提供给用户的信息以及手机的各种菜单。显示单元1240可包括显示面板1241，可选的，可以采用液晶显示器(Liquid Crystal Display，LCD)、有机发光二极管(Organic Light-Emitting Diode，OLED)等形式来配置显示面板1241。进一步的，触控面板1231可覆盖显示面板1241，当触控面板1231检测到在其上或附近的触摸操作后，传送给处理器1280以确定触摸事件的类型，随后处理器1280根据触摸事件的类型在显示面板1241上提供相应的视觉输出。虽然在图12中，触控面板1231与显示面板1241是作为两个独立的部件来实现手机的输入和输入功能，但是在某些 实施例中，可以将触控面板1231与显示面板1241集成而实现手机的输入和输出功能。
手机还可包括至少一种传感器1250，比如光传感器、运动传感器以及其他传感器。具体地，光传感器可包括环境光传感器及接近传感器，其中，环境光传感器可根据环境光线的明暗来调节显示面板1241的亮度，接近传感器可在手机移动到耳边时，关闭显示面板1241和/或背光。作为运动传感器的一种，加速计传感器可检测各个方向上(一般为三轴)加速度的大小，静止时可检测出重力的大小及方向，可用于识别手机姿态的应用(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等；至于手机还可配置的陀螺仪、气压计、湿度计、温度计、红外线传感器等其他传感器，在此不再赘述。
音频电路1260、扬声器1261，传声器1262可提供用户与手机之间的音频接口。音频电路1260可将接收到的音频数据转换后的电信号，传输到扬声器1261，由扬声器1261转换为声音信号输出；另一方面，传声器1262将收集的声音信号转换为电信号，由音频电路1260接收后转换为音频数据，再将音频数据输出处理器1280处理后，经RF电路1210以发送给比如另一手机，或者将音频数据输出至存储器1220以便进一步处理。
WiFi属于短距离无线传输技术，手机通过WiFi模块1270可以帮助用户收发电子邮件、浏览网页和访问流式媒体等，它为用户提供了无线的宽带互联网访问。虽然图12示出了WiFi模块1270，但是可以理解的是，其并不属于手机的必须构成。
处理器1280是手机的控制中心，利用各种接口和线路连接整个手机的各个部分，通过运行或执行存储在存储器1220内的软件程序和/或模块，以及调用存储在存储器1220内的数据，执行手机的各种功能和处理数据，从而对手机进行整体监控。可选的，处理器1280可包括一个或多个处理单元；优选的，处理器1280可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器1280中。
手机还包括给各个部件供电的电源1290(比如电池)，优选的，电源可以通过电源管理系统与处理器1280逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。
尽管未示出，手机还可以包括摄像头、蓝牙模块等，在此不再赘述。
在本申请实施例中，该终端设备所包括的处理器1280可以执行前述图2至图6所示实施例中的功能，此处不再赘述。
请参阅图13，为本申请的实施例提供的上述实施例中所涉及的通信装置的结构示意图，其中，该通信装置具体可以为前述实施例中的网络设备，该通信装置的结构可以参考图13所示的结构。
通信装置包括至少一个处理器1311、至少一个存储器1312、至少一个收发器1313、至少一个网络接口1314和一个或多个天线1315。处理器1311、存储器1312、收发器1313和网络接口1314相连，例如通过总线相连，在本申请实施例中，所述连接可包括各类接口、传输线或总线等，本实施例对此不做限定。天线1315与收发器1313相连。网络接口1314用于使得通信装置通过通信链路，与其它通信设备相连，例如网络接口1314可以包括通信 装置与核心网设备之间的网络接口，例如S1接口，网络接口可以包括通信装置和其他网络设备(例如其他接入网设备或者核心网设备)之间的网络接口，例如X2或者Xn接口。
处理器1311主要用于对通信协议以及通信数据进行处理，以及对整个通信装置进行控制，执行软件程序，处理软件程序的数据，例如用于支持通信装置执行实施例中所描述的动作。通信装置可以可以包括基带处理器和中央处理器，基带处理器主要用于对通信协议以及通信数据进行处理，中央处理器主要用于对整个终端设备进行控制，执行软件程序，处理软件程序的数据。图13中的处理器1311可以集成基带处理器和中央处理器的功能，本领域技术人员可以理解，基带处理器和中央处理器也可以是各自独立的处理器，通过总线等技术互联。本领域技术人员可以理解，终端设备可以包括多个基带处理器以适应不同的网络制式，终端设备可以包括多个中央处理器以增强其处理能力，终端设备的各个部件可以通过各种总线连接。所述基带处理器也可以表述为基带处理电路或者基带处理芯片。所述中央处理器也可以表述为中央处理电路或者中央处理芯片。对通信协议以及通信数据进行处理的功能可以内置在处理器中，也可以以软件程序的形式存储在存储器中，由处理器执行软件程序以实现基带处理功能。
存储器主要用于存储软件程序和数据。存储器1312可以是独立存在，与处理器1311相连。可选的，存储器1312可以和处理器1311集成在一起，例如集成在一个芯片之内。其中，存储器1312能够存储执行本申请实施例的技术方案的程序代码，并由处理器1311来控制执行，被执行的各类计算机程序代码也可被视为是处理器1311的驱动程序。
图13仅示出了一个存储器和一个处理器。在实际的终端设备中，可以存在多个处理器和多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以为与处理器处于同一芯片上的存储元件，即片内存储元件，或者为独立的存储元件，本申请实施例对此不做限定。
收发器1313可以用于支持通信装置与终端之间射频信号的接收或者发送，收发器1313可以与天线1315相连。收发器1313包括发射机Tx和接收机Rx。具体地，一个或多个天线1315可以接收射频信号，该收发器1313的接收机Rx用于从天线接收所述射频信号，并将射频信号转换为数字基带信号或数字中频信号，并将该数字基带信号或数字中频信号提供给所述处理器1311，以便处理器1311对该数字基带信号或数字中频信号做进一步的处理，例如解调处理和译码处理。此外，收发器1313中的发射机Tx还用于从处理器1311接收经过调制的数字基带信号或数字中频信号，并将该经过调制的数字基带信号或数字中频信号转换为射频信号，并通过一个或多个天线1315发送所述射频信号。具体地，接收机Rx可以选择性地对射频信号进行一级或多级下混频处理和模数转换处理以得到数字基带信号或数字中频信号，所述下混频处理和模数转换处理的先后顺序是可调整的。发射机Tx可以选择性地对经过调制的数字基带信号或数字中频信号时进行一级或多级上混频处理和数模转换处理以得到射频信号，所述上混频处理和数模转换处理的先后顺序是可调整的。数字基带信号和数字中频信号可以统称为数字信号。
收发器也可以称为收发单元、收发机、收发装置等。可选的，可以将收发单元中用于实现接收功能的器件视为接收单元，将收发单元中用于实现发送功能的器件视为发送单元， 即收发单元包括接收单元和发送单元，接收单元也可以称为接收机、输入口、接收电路等，发送单元可以称为发射机、发射器或者发射电路等。
需要说明的是，图13所示通信装置具体可以用于实现图2至图6对应方法实施例中网络设备所实现的步骤，并实现网络设备对应的技术效果，图13所示通信装置的具体实现方式，均可以参考图2至图6方法实施例中的叙述，此处不再一一赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。

Claims (41)

  1. 一种数据传输方法，其特征在于，包括：
    第一终端设备向第二终端设备发送第一信息，所述第一信息包括所述第一终端设备的同步信号块SSB信息和/或所述第一终端设备的第一标识；
    所述第一终端设备根据接收到的与所述SSB信息和/或所述第一标识关联的来自网络设备的下行控制信息DCI接收响应信息，所述响应信息与所述第一信息对应。
  2. 根据权利要求1所述的方法，其特征在于，所述第一信息包括所述SSB信息，所述第一终端设备根据接收到的与所述SSB信息和/或所述第一标识关联的来自网络设备的下行控制信息DCI接收响应信息，包括：
    若所述DCI中包括所述SSB信息，所述第一终端设备接收所述DCI调度的所述响应信息。
  3. 根据权利要求2所述的方法，其特征在于，所述第一信息还包括所述第一标识，所述响应信息包括所述第一标识。
  4. 根据权利要求1所述的方法，其特征在于，所述第一信息包括所述第一标识；
    所述第一终端设备根据接收到的与所述SSB信息和/或所述第一标识关联的来自网络设备的下行控制信息DCI接收响应信息，包括：
    若所述DCI包括所述第一标识，所述第一终端设备接收所述DCI调度的所述响应信息。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，所述方法还包括：
    所述第一终端设备监听使用第一序列加扰的所述DCI，所述第一序列与所述SSB信息相关。
  6. 根据权利要求1至4中任一项所述的方法，其特征在于，所述DCI的加扰序列为第二序列，所述第二序列与所述第二终端设备向所述网络设备发送第二信息所使用的第一目标资源相关，所述第二信息包括所述第一信息的至少一部分。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述SSB信息包括所述SSB的索引和/或所述SSB的时频域信息。
  8. 根据权利要求1至7中任一项所述的方法，其特征在于，所述方法还包括：
    所述第一终端设备根据第一资源与第二资源之间的映射关系确定第一目标资源，所述第一资源用于所述第二终端设备向所述网络设备传输数据所使用的时频资源，所述第二资源用于所述第一终端设备向所述第二终端设备发送所述第一信息所使用的时频资源。
  9. 一种数据传输方法，其特征在于，包括：
    网络设备接收第二终端设备发送的第二信息，所述第二信息包括第一终端设备的同步信号块SSB信息和/或所述第一终端设备的第一标识，
    所述网络设备向所述第一终端设备发送DCI，所述DCI用于调度与所述第二信息对应的响应信息；
    所述网络设备向所述第一终端设备发送所述响应信息。
  10. 根据权利要求9所述的方法，其特征在于，所述第二信息包括所述SSB信息，所述DCI中包括所述SSB信息。
  11. 根据权利要求10所述的方法，其特征在于，所述第二信息还包括所述第一标识，所述响应信息包括所述第一标识。
  12. 根据权利要求9至11中任一项所述的方法，其特征在于，所述第二信息包括所述第一标识，所述DCI中包括所述第一标识。
  13. 根据权利要求9至12中任一项所述的方法，其特征在于，所述DCI使用第一序列加扰得到，所述第一序列与所述SSB信息相关。
  14. 根据权利要求9至12中任一项所述的方法，其特征在于，所述DCI使用第二序列加扰得到，所述第二序列与所述第二终端设备向所述网络设备发送所述第二信息所使用的第一目标资源相关。
  15. 根据权利要求9至14中任一项所述的方法，其特征在于，所述SSB信息包括所述SSB的索引和/或所述SSB的时频域信息。
  16. 根据权利要求9至15中任一项所述的方法，其特征在于，所述响应信息包括至少两个第一终端设备的响应信息，所述至少两个第一终端设备所对应的SSB相同。
  17. 一种第一终端设备，其特征在于，包括：
    发送单元，用于向第二终端设备发送第一信息，所述第一信息包括所述第一终端设备的同步信号块SSB信息和/或所述第一终端设备的第一标识；
    接收单元，还用于根据接收到的与所述SSB信息和/或所述第一标识关联的来自网络设备的下行控制信息DCI接收响应信息，所述响应信息与所述第一信息对应。
  18. 根据权利要求17所述的第一终端设备，其特征在于，若所述DCI中包括所述SSB信息，所述接收单元具体用于接收所述DCI调度的所述响应信息。
  19. 根据权利要求18所述的第一终端设备，其特征在于，所述第一信息还包括所述第一标识，所述响应信息包括所述第一标识。
  20. 根据权利要求17所述的第一终端设备，其特征在于，所述第一信息包括所述第一标识；
    若所述DCI包括所述第一标识，所述接收单元具体用于接收所述DCI调度的所述响应信息。
  21. 根据权利要求17至20中任一项所述的第一终端设备，其特征在于，所述第一终端设备还包括：
    处理单元，用于监听使用第一序列加扰的所述DCI，所述第一序列与所述SSB信息相关。
  22. 根据权利要求17至20中任一项所述的第一终端设备，其特征在于，所述DCI使用第二序列加扰得到，所述第二序列与所述第二终端设备向所述网络设备发送第二信息所使用的第一目标资源相关，所述第二信息包括所述第一信息的至少一部分。
  23. 根据权利要求17至22中任一项所述的第一终端设备，其特征在于，所述SSB信息包括所述SSB的索引和/或所述SSB的时频域信息。
  24. 根据权利要求17至23中任一项所述的第一终端设备，其特征在于，
    所述处理单元，还用于根据第一资源与第二资源之间的映射关系确定第一目标资源， 所述第一资源用于所述第二终端设备向所述网络设备传输数据所使用的时频资源，所述第二资源用于所述第一终端设备向所述第二终端设备传输数据所使用的时频资源。
  25. 一种网络设备，其特征在于，包括：
    接收单元，用于接收第二终端设备发送的第二信息，所述第二信息包括第一终端设备的同步信号块SSB信息和/或所述第一终端设备的第一标识，
    发送单元，还用于向所述第一终端设备发送DCI，所述DCI用于调度与所述第二信息对应的响应信息；
    所述发送单元，还用于向所述第一终端设备发送所述响应信息。
  26. 根据权利要求25所述的网络设备，其特征在于，所述第二信息包括所述SSB信息，所述DCI中包括所述SSB信息。
  27. 根据权利要求26所述的网络设备，其特征在于，所述第二信息还包括所述第一标识，所述响应信息包括所述第一标识。
  28. 根据权利要求25至27中任一项所述的网络设备，其特征在于，所述第二信息包括所述第一标识，所述DCI中包括所述第一标识。
  29. 根据权利要求25至28中任一项所述的网络设备，其特征在于，所述DCI使用第一序列加扰得到，所述第一序列与所述SSB信息相关。
  30. 根据权利要求25至28中任一项所述的网络设备，其特征在于，所述DCI使用第二序列加扰得到，所述第二序列与所述第二终端设备向所述网络设备发送所述第二信息所使用的第一目标资源相关。
  31. 根据权利要求25至30中任一项所述的网络设备，其特征在于，所述SSB信息包括所述SSB的索引和/或所述SSB的时频域信息。
  32. 根据权利要求25至31中任一项所述的网络设备，其特征在于，所述响应信息包括至少两个第一终端设备的响应信息，所述至少两个第一终端设备所对应的SSB相同。
  33. 一种第一终端设备，其特征在于，包括处理器，所述处理器与存储器耦合，所述存储器用于存储计算机程序或指令，所述处理器用于执行存储器中的所述计算机程序或指令，使得权利要求1至8任一项所述的方法被执行。
  34. 一种网络设备，其特征在于，包括处理器，所述处理器与存储器耦合，所述存储器用于存储计算机程序或指令，所述处理器用于执行存储器中的所述计算机程序或指令，使得权利要求9至16任一项所述的方法被执行。
  35. 一种通信系统，其特征在于，包括如权利要求33所述的第一终端设备以及如权利要求34所述的网络设备。
  36. 一种芯片，其特征在于，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行计算机程序或指令，使得权利要求1至8任一项所述的方法被执行。
  37. 一种芯片，其特征在于，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行计算机程序或指令，使得权利要求9至16任一项所述的方法被执行。
  38. 一种计算机存储介质，其特征在于，所述计算机存储介质中存储有指令，所述指令在计算机上执行时，使得所述计算机执行如权利要求1至8中任一项所述的方法。
  39. 一种计算机存储介质，其特征在于，所述计算机存储介质中存储有指令，所述指令在计算机上执行时，使得所述计算机执行如权利要求9至16中任一项所述的方法。
  40. 一种计算机程序产品，其特征在于，所述计算机程序产品在计算机上执行时，使得所述计算机执行如权利要求1至8中任一项所述的方法。
  41. 一种计算机程序产品，其特征在于，所述计算机程序产品在计算机上执行时，使得所述计算机执行如权利要求9至16中任一项所述的方法。
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