WO2020258301A1 - 一种通信方法及装置 - Google Patents

一种通信方法及装置 Download PDF

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Publication number
WO2020258301A1
WO2020258301A1 PCT/CN2019/093871 CN2019093871W WO2020258301A1 WO 2020258301 A1 WO2020258301 A1 WO 2020258301A1 CN 2019093871 W CN2019093871 W CN 2019093871W WO 2020258301 A1 WO2020258301 A1 WO 2020258301A1
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Prior art keywords
subframe
uplink
downlink
denb
downlink subframe
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English (en)
French (fr)
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左宋
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to PCT/CN2019/093871 priority Critical patent/WO2020258301A1/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • This application relates to the field of mobile communication technology, and in particular to a communication method and device.
  • a relay transmission technology In the long term evolution (LTE) system, in order to improve the coverage of the base station, a relay transmission technology is introduced, which is called a relay communication system.
  • a relay communication system the signals transmitted between network equipment and terminal equipment are forwarded through the relay equipment to improve the stability and throughput of the system.
  • the architecture of the relay communication system may be as shown in Fig. 1, including node 1 (network equipment), node 2 (relay equipment), and node 3 (terminal equipment).
  • the terminal device can be directly connected or connected to the network device through at least one relay device to form a wireless connection, so that the terminal device can successfully access the network based on the wireless connection, and finally realize business communication.
  • the wireless connection (marked as L1) is called the downlink transmission link
  • the wireless connection (marked as L2) and the wireless connection (marked as L3) can be regarded as the uplink transmission link, among which, in order to distinguish, the wireless connection ( L2) is called the uplink access link
  • the wireless connection (L3) is called the uplink backhaul relay link.
  • the LTE system defines two different duplex modes: frequency division duplexing (FDD) and time division duplexing (TDD).
  • FDD frequency division duplexing
  • TDD time division duplexing
  • network equipment schedules relay equipment and terminal equipment in a time-division manner to share uplink air interface resources, so as to avoid mutual interference between relay equipment in sending and receiving.
  • uplink resource allocation method and physical uplink shared channel Physical Uplink Shared Channel, PUSCH
  • HARQ Hybrid Automatic Repeat Request
  • the present application provides a communication method and device, which are used to provide a scheduling timing of an uplink relay link to avoid possible conflicts in PUSCH synchronization HARQ.
  • an embodiment of the present application provides a communication method, which is applied to a communication system including a relay device, and the method includes: a network device sends configuration information to a terminal device, and the configuration information may be used to instruct the terminal device Send the uplink subframe of the first uplink channel to the relay device, and the relay device sends the uplink subframe of the second uplink channel to the network device, so that the network device can schedule the terminal device in the subframe according to the configuration information
  • the first uplink channel is sent to the relay device on n1, and the relay device is scheduled to send the second uplink channel to the network device in the subframe n1+k1.
  • the method may be executed by a first communication device, and the first communication device may be a communication device or a communication device capable of supporting the communication device to implement the functions required by the method, such as a chip system.
  • the communication device is a network device.
  • subframe n1+K is the subframe where the network device sends HARQ feedback to the terminal device
  • n1 is a positive integer
  • k1 and K are both integers greater than 1
  • subframe n1+K is the same as subframe n1.
  • the time difference between +k1 can ensure that the network device correctly receives and decodes the second uplink channel sent by the relay device to the network device on the subframe n1+k1. It can be seen that in the relay communication system, the method provided in the embodiments of the present application can enable the DeNB to have enough time to complete the demodulation and decoding of the relay PUSCH before sending the HARQ feedback, thereby avoiding possible conflicts of PUSCH synchronization HARQ.
  • the difference between the K and the k1 is greater than or equal to 2.
  • the difference between K and k1 can be limited, so as to ensure that the DeNB has enough time to complete the demodulation and decoding of the relay PUSCH before sending the HARQ feedback.
  • the network device sends configuration information to the terminal device, including:
  • the network device sends MSG4 to the terminal device, where MSG4 carries configuration information; or,
  • the network device sends a radio resource control RRC connection reconfiguration message to the terminal device, where the RRC connection reconfiguration message carries configuration information; or,
  • the network device sends a system message to the terminal device, where the system message carries configuration information.
  • the network device can notify the terminal device of configuration information in multiple ways. For example, it can notify the terminal device of the configuration information by sending MSG4, RRC connection reconfiguration message or system message to the terminal device, which is more flexible.
  • the configuration information includes a time division multiplexing TDM uplink and downlink subframe ratio, where:
  • n1 is 1 or 4, k1 is 3 or 4; n1 is 2 or 5, corresponding to k1 is 2 or 3; when n1 is 3 or 6, k1 is 2;
  • n1 is 1 or 4
  • k1 is 2, 3 or 4
  • n1 is 2 or 5
  • k1 is 2 or 3;
  • n1 is 1 or 4
  • k1 is 2, 3 or 4;
  • n1 is 1 or 2
  • k1 is 2, 3 or 4;
  • TDM uplink and downlink subframe ratio 6 when n1 is 1, k1 is 3 or 4; when n1 is 2 or 5, k1 is 2 or 3; when n1 is 3, k1 is 2; when n1 is 4 , K1 is 2, 3 or 4.
  • the configuration information may include the ratio of TDM uplink and downlink subframes to inform terminal equipment and relay equipment to use TDM for uplink and downlink transmission, which is compatible with the existing LTE system and is easy to implement.
  • different scheduling timings can be specified, that is, specify the time domain position of the network equipment to schedule the terminal equipment for uplink transmission, and the network equipment to schedule the relay equipment for the uplink relay transmission. Therefore, the terminal device and the relay device can perform the uplink channel relay process according to the scheduling timing corresponding to the TDM uplink and downlink subframe ratio included in the configuration information, so as to avoid possible conflicts of PUSCH synchronization HARQ.
  • the configuration information includes a time division duplex TDD uplink and downlink subframe ratio, where:
  • n1 is 1 or 4
  • k1 is 2, 3 or 4;
  • n1 is 1 or 2
  • k1 is 2, 3 or 4;
  • the configuration information may include the ratio of TDD uplink and downlink subframes to inform terminal equipment and relay equipment to use TDM for uplink and downlink transmission, which is compatible with the existing LTE system and is easy to implement.
  • TDD uplink and downlink subframe ratios different scheduling timings can also be specified. Therefore, terminal equipment and relay devices can perform the uplink channel relay process according to the scheduling timing corresponding to the TDD uplink and downlink subframe ratios included in the configuration information. , To avoid possible conflicts in PUSCH synchronization HARQ.
  • the method further includes:
  • the network device schedules the terminal device to send a downlink response ACK feedback to the relay device on subframe n2, and schedules the relay device to send a response to the relay device on subframe n2+k2
  • the network device sends the third uplink channel.
  • the configuration information can also instruct the terminal device to send a downlink response ACK feedback to the relay device on subframe n2, and the relay device sends a third uplink channel to the network device on subframe n2+k2 to ensure that the terminal When the device and the relay device perform the uplink channel relay process according to the configuration information, the utilization rate of the downlink subframe is improved.
  • the configuration information includes TDM uplink and downlink subframe ratios, where:
  • n2 is 1 or 4
  • k2 is 3
  • n2 is 2, 3, 5, and 6, k2 is 2;
  • n2 1, 2, 4, and 5, k2 is 2;
  • n2 is 1 or 4
  • k2 is 2;
  • Implementation mode one for different TDM uplink and downlink subframe ratios, different scheduling timings can be specified, that is, the time domain location at which network equipment schedules terminal equipment for downlink transmission and corresponding downlink ACK feedback, and network equipment schedules relay equipment Where to perform the relay transmission, so as to ensure that when the terminal device and the relay device perform the uplink channel relay process according to the configuration information, all the downlink subframes can be used, which improves the resource utilization rate.
  • the configuration information includes TDD uplink and downlink subframe ratios, where:
  • n2 1, 2, 4, and 5, k2 is 2;
  • Implementation mode two for different TDD uplink and downlink subframe ratios, different scheduling timings are also specified, so as to ensure that when terminal equipment and relay equipment perform the uplink channel relay process according to the configuration information, all downlink subframes can be Utilize and improve resource utilization.
  • an embodiment of the present application provides a communication method, which is applied to a communication system including a relay device, and the method includes:
  • the terminal device receives configuration information from the network device, where the configuration information is used to instruct the terminal device to send the uplink subframe of the first uplink channel to the relay device, and the relay device to send the second uplink channel to the network device Uplink subframe;
  • the relay device sends the second uplink channel to the network device in subframe n1+k1, and the subframe n1+K is for the network device to send an automatic hybrid retransmission request to the terminal device
  • the n1 is a positive integer
  • the k1 and K are both integers greater than 1
  • the time difference between the subframe n1+K and the subframe n1+k1 can guarantee all
  • the network device correctly receives and decodes the second uplink channel sent by the relay device to the network device in the subframe n1+k1.
  • the method can be executed by a second communication device.
  • the second communication device can be a terminal or a communication device capable of supporting the terminal to implement the functions required by the method, and of course it can also be another communication device, such as a chip system.
  • the second communication device is a terminal.
  • the difference between the K and the k1 is greater than or equal to 2.
  • the terminal device receives configuration information from the network device, including:
  • the terminal device receives the message MSG4 from the network device, where the MSG4 carries the configuration information; or,
  • the terminal device receives the RRC connection reconfiguration message from the network device, where the RRC connection reconfiguration message carries the configuration information; or,
  • the terminal device receives a system message from the network device, where the system message carries the configuration information.
  • the configuration information includes a time division multiplexing TDM uplink and downlink subframe ratio, where:
  • n1 is 1 or 4, k1 is 3 or 4; n1 is 2 or 5, corresponding to k1 is 2 or 3; when n1 is 3 or 6, k1 is 2;
  • n1 is 1 or 4
  • k1 is 2, 3 or 4
  • n1 is 2 or 5
  • k1 is 2 or 3;
  • n1 is 1 or 4
  • k1 is 2, 3 or 4;
  • n1 is 1 or 2
  • k1 is 2, 3 or 4;
  • TDM uplink and downlink subframe ratio 6 when n1 is 1, k1 is 3 or 4; when n1 is 2 or 5, k1 is 2 or 3; when n1 is 3, k1 is 2; when n1 is 4 , K1 is 2, 3 or 4.
  • the configuration information includes a time division duplex TDD uplink and downlink subframe ratio, where:
  • n1 is 1 or 4
  • k1 is 2, 3 or 4;
  • n1 is 1 or 2
  • k1 is 2, 3 or 4;
  • it also includes:
  • the terminal device sends a downlink response ACK feedback to the relay device in subframe n2 according to the configuration information, wherein the relay device sends a third uplink response to the network device in subframe n2+k2 channel.
  • the configuration information includes TDM uplink and downlink subframe ratios, where:
  • n2 is 1 or 4
  • k2 is 3
  • n2 is 2, 3, 5, and 6, k2 is 2;
  • n2 1, 2, 4, and 5, k2 is 2;
  • n2 is 1 or 4
  • k2 is 2;
  • the configuration information includes TDD uplink and downlink subframe ratios, where:
  • n2 1, 2, 4, and 5, k2 is 2;
  • this application provides a communication device, which may be a terminal device or a network device, or a chip.
  • the device has the function of implementing the embodiments of any one of the first aspect or the second aspect described above. This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • a communication device including: a processor and a memory; the memory is used to store computer execution instructions, and when the device is running, the processor executes the computer execution instructions stored in the memory to make the device Execute the communication method according to any one of the above-mentioned first aspect or the first aspect, or make the device execute the communication method according to any one of the above-mentioned second aspect or the second aspect.
  • the present application also provides a computer-readable storage medium having instructions stored in the computer-readable storage medium, which when run on a computer, cause the computer to execute the methods described in the above aspects.
  • the present application also provides a computer program product including instructions, which when run on a computer, causes the computer to execute the methods described in the foregoing aspects.
  • the present application also provides a system, which includes the network device in the first aspect described above, the terminal device in the second aspect described above, and a relay device.
  • FIG. 1 is a schematic diagram of the architecture of a communication system to which an embodiment of the application is applicable;
  • Figure 2 is a schematic diagram of an uplink scheduling sequence in the prior art
  • Figure 3 is a schematic diagram of a downlink scheduling sequence in the prior art
  • 5A-5E are schematic diagrams of an uplink scheduling sequence provided by an embodiment of this application.
  • 6A-6E are schematic diagrams of an uplink scheduling sequence provided by an embodiment of this application.
  • FIG. 7 is a schematic diagram of an uplink scheduling sequence provided by an embodiment of this application.
  • 8A-8C are schematic diagrams of an uplink scheduling sequence provided by an embodiment of this application.
  • FIGS. 9A-9B are schematic diagrams of an uplink scheduling sequence provided by an embodiment of this application.
  • FIG. 10 is a schematic diagram of an uplink scheduling sequence provided by an embodiment of this application.
  • FIGS. 11A-11E are schematic diagrams of an uplink scheduling sequence provided by an embodiment of this application.
  • 12A-12B are schematic diagrams of uplink scheduling sequence provided by embodiments of this application.
  • FIG. 13 is a schematic diagram of a downlink scheduling sequence provided by an embodiment of this application.
  • FIG. 14 is a schematic diagram of a downlink scheduling sequence provided by an embodiment of this application.
  • FIG. 15 is a schematic diagram of a downlink scheduling sequence provided by an embodiment of this application.
  • FIG. 16 is a schematic diagram of a downlink scheduling sequence provided by an embodiment of this application.
  • FIG. 17 is a schematic diagram of a downlink scheduling sequence provided by an embodiment of this application.
  • FIG. 18 is a schematic diagram of a downlink scheduling sequence provided by an embodiment of this application.
  • FIG. 19 is a schematic diagram of a downlink scheduling sequence provided by an embodiment of this application.
  • FIG. 20 is a schematic diagram of a downlink scheduling sequence provided by an embodiment of this application.
  • FIG. 21 is a schematic diagram of a downlink scheduling sequence provided by an embodiment of this application.
  • FIG. 22 is a schematic diagram of a downlink scheduling sequence provided by an embodiment of this application.
  • FIG. 23 is a schematic diagram of a downlink scheduling sequence provided by an embodiment of this application.
  • FIG. 24 is a schematic diagram of a downlink scheduling sequence provided by an embodiment of this application.
  • FIG. 25 is a schematic diagram of the uplink and downlink scheduling process provided by an embodiment of the application.
  • FIG. 26 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 27 is a schematic structural diagram of another communication device according to an embodiment of this application.
  • FIG. 28 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 29 is a schematic diagram of another structure of another communication device according to an embodiment of the application.
  • FIG. 30 is a schematic block diagram of a communication device according to an embodiment of this application.
  • FIG. 31 is a schematic structural diagram of another communication device provided by an embodiment of this application.
  • FIG. 32 is a schematic diagram of another structure of another communication device provided by an embodiment of this application.
  • FIG. 33 is a schematic structural diagram of another communication device according to an embodiment of the application.
  • Terminal devices include devices that provide users with voice and/or data connectivity. For example, they may include handheld devices with wireless connection functions or processing devices connected to wireless modems.
  • the terminal device can communicate with the core network via a radio access network (RAN), and exchange voice and/or data with the RAN.
  • RAN radio access network
  • the terminal equipment may include user equipment (UE), wireless terminal equipment, mobile terminal equipment, device-to-device communication (device-to-device, D2D) terminal equipment, V2X terminal equipment, machine-to-machine/machine-type communication ( machine-to-machine/machine-type communications, M2M/MTC) terminal equipment, Internet of things (IoT) terminal equipment, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station) , Remote station (remote station), access point (access point, AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), or user equipment (user device) etc.
  • IoT Internet of things
  • it may include mobile phones (or “cellular” phones), computers with mobile terminal equipment, portable, pocket-sized, handheld, and computer-built mobile devices.
  • PCS personal communication service
  • PCS personal communication service
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistants
  • restricted devices such as devices with low power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities. Examples include barcodes, radio frequency identification (RFID), sensors, global positioning system (GPS), laser scanners and other information sensing equipment.
  • RFID radio frequency identification
  • GPS global positioning system
  • laser scanners and other information sensing equipment.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices or smart wearable devices, etc. It is a general term for using wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes Wait.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones.
  • Use such as various smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.
  • the various terminal devices described above if they are located on the vehicle (for example, placed in the vehicle or installed in the vehicle), can be considered as vehicle-mounted terminal equipment, for example, the vehicle-mounted terminal equipment is also called on-board unit (OBU). ).
  • the terminal device may also include a relay. Or it can be understood that everything that can communicate with the base station can be regarded as a terminal device.
  • the terminal device is a UE as an example.
  • a network device is an entity used to transmit or receive signals on the network side, such as a generation NodeB (gNodeB).
  • the network device may be a device used to communicate with mobile devices.
  • the network equipment can be an AP in a wireless local area network (WLAN), a base transceiver in a global system for mobile communication (GSM) or a code division multiple access (CDMA).
  • WLAN wireless local area network
  • GSM global system for mobile communication
  • CDMA code division multiple access
  • BTS can also be a base station (NodeB, NB) in wideband code division multiple access (WCDMA), or an evolved base station (evolutional Node B, eNB, or eNodeB) in LTE,
  • the network equipment can also coordinate the attribute management of the air interface.
  • the embodiments of the present application are not limited.
  • the network device may be another device that provides wireless communication functions for the terminal device.
  • the embodiment of the present application does not limit the specific technology and specific device form adopted by the network device.
  • a device that provides a wireless communication function for a terminal device is called a network device.
  • the network device is a DeNB as an example.
  • Relay Nodes, RN can be ordinary base stations (such as Node B or eNB), NR controller, gNB in 5G system, Centralized Unit, base station in future mobile communication system, new wireless base station, radio frequency Remote module, micro base station, Distributed Unit, access node in wireless fidelity (Wireless-Fidelity, WiFi) system, etc., reception point (transmission reception point, TRP) or transmission point (transmission point, TP) or bridge wireless unit (Bridge Radio Unit, BRU) Any other wireless access device, the embodiment of the present application is not limited to this. In the following description, it is assumed that the relay device is a BRU.
  • the frame structure needs to meet the following requirements:
  • PUSCH Physical Uplink Shared Channel
  • PHICH Physical Hybrid Automatic Retransmission Indication Channel
  • ACK Acknowledgement
  • NACK Nonacknowledgement
  • the content of the PUSCH includes at least the uplink data sent by the UE, and the content of the PHICH is the ACK/NACK feedback of the data in the PUSCH sent by the subframe n.
  • Uplink (UL) HARQ PUSCH retransmission period that is, when the UE transmits an uplink data block on subframe n for the first time, if the data block needs to be retransmitted, it can only be performed in subframe n+k*L, where k Is the retransmission period, L is the number of retransmissions, with values of 1, 2, 3,...Lmax, and Lmax is the maximum number of retransmissions configured by the system. In LTE FDD R8, k is equal to 8.
  • PHICH/uplink grant (UL grant) and PUSCH (n+4) that is, the UE receives and sends the UE’s PHICH/UL grant in subframe n, then the UE will follow the PHICH/UL grant instructions in subframe n+k Adjust the PUSCH, where k is the interval between the PHICH/UL grant indication and the UL data channel transmission.
  • k is equal to 4; this adjustment means that when the content in the PHICH is ACK, it is in the subframe n+ The PUSCH on 4 sends new data; when the content in the PHICH is NACK, the PUSCH on subframe n+4 retransmits the previously sent data; or according to UL grant instructions on the corresponding uplink resource of subframe n+4 send data.
  • PDSCH Physical Downlink Shared Channel
  • UL ACK/NACK that is, the UE receives the PDSCH sent to the UE in the subframe n, and feeds back the UL ACK/NACK in the subframe n+k, where k is the downlink data
  • the ACK/NACK feedback interval of LTE FDD R8, k is equal to 4.
  • a HARQ process refers to the base station scheduling data transmission once, and then sending ACK/NACK feedback to the terminal equipment.
  • RTT the number of HARQ processes is related to the RTT, which is related to the processing time of the terminal device or base station. The larger the RTT, the more parallel HARQ processes need to be supported to fill the RTT, and the number of HARQ processes is approximately equal to the RTT.
  • uplink data and downlink data can be sent in each subframe, and the uplink data and downlink data are separated by frequency.
  • the base station (or terminal device) can send the HARQ process in the n+4th subframe.
  • the base station (or terminal device) can continue to send the next data frame in the n+8th subframe through the HARQ process, that is, the HARQ RTT time is 8ms.
  • the uplink access link L2 and the uplink backhaul relay link L3 work in the same frequency band.
  • the BRU when receiving When the data comes from the UE, it may also send data to the base station, which will cause transceiver interference to the BRU. In order to avoid BRU transmission and reception interference, it is currently stipulated that the BRU and UE can share uplink air interface resources in a time division manner.
  • FIG. 2 For uplink scheduling, as shown in Figure 2, it is a schematic diagram of the current uplink scheduling timing structure, that is, according to the minimum transmission delay, the BRU and the UE alternately use uplink air interface resources.
  • the flow of the base station scheduling UE and BRU according to the time sequence shown in FIG. 2 includes the following steps:
  • the base station allocates an uplink grant for the BRU on subframe n-7, which is used for the BRU to transmit current uplink data or for the BRU to transmit uplink data after the current moment;
  • the UE sends an uplink scheduling request to the relay device in subframe n-6;
  • the BRU receives the uplink scheduling request from the UE and sends the PUSCH to the base station in subframe n-3, which carries the uplink scheduling request sent by the UE; since subframe n-5 is immediately followed by subframe n-6, if The processing time of the BRU is relatively long, and the demodulation result of the uplink scheduling request may not be obtained within one subframe. In order to give the BRU a longer processing time, the BRU can be used in the subframes after subframe n-5. Send PUSCH to the base station. The most recent subframe is subframe n-4, but subframe n-4 is available for the UE. Therefore, the BRU sends PUSCH in subframe n-3 to minimize the transmission delay;
  • the base station allocates an uplink grant to the UE, where the base station can allocate an uplink grant to the UE in a subframe after subframe n-3. But in subframe n-2, the base station may not finish demodulating the PUSCH from the BRU, so the base station allocates uplink grants to the UE on subframe n;
  • the base station sends the uplink scheduling management frame information for scheduling the UE to the BRU in the nearest subframe n+1 to instruct the BRU to demodulate the PUSCH of the UE;
  • the base station allocates an uplink grant to the BRU in subframe n+3 for the BRU to transmit the PUSCH sent by the UE;
  • the UE sends the PUSCH corresponding to step 24) on subframe n+4;
  • the BRU sends the PUSCH corresponding to step 26) to the base station on subframe n+7.
  • the PUSCH carries the demodulation result of the PUSCH sent by the UE in step 27).
  • the demodulation result may include, for example, a cyclic redundancy check ( Cyclic Redundancy Check, CRC), uplink control information UCI results, and TB data block content, etc.; similar to step 23), where the BRU sends PUSCH to the base station in subframe n+7, so that the BRU can send PUSCH before sending PUSCH. More time demodulate the PUSCH in step 27).
  • step 24 the UE fails to transmit PUSCH and needs to retransmit PUSCH; or, as long as step 26) Or step 28) fails, and the BRU does not buffer the demodulation and decoding result of the PUSCH transmitted by the UE this time. It can also be considered that the UE has failed to transmit the PUSCH, and the PUSCH needs to be retransmitted.
  • the base station sends HARQ feedback to the UE to instruct the UE to retransmit the PUSCH.
  • FDD uplink synchronization HARQ RTT is fixed at 8 subframes, that is, the time interval from the UE sending the PUSCH initial transmission authorization to the base station sending HARQ feedback to the UE is 8 subframes. Then the base station needs to send HARQ feedback to the UE in subframe n+8.
  • the base station allocates uplink authorization to the UE on subframe n, and then the base station To complete the reception, demodulation and decoding of the PUSCH sent by the BRU in subframe n+7, and HARQ scheduling on subframe n+8, a total of at least 9 complete subframes, that is, subframe n to subframe n+8, are required.
  • the BRU or the base station cannot complete the demodulation and decoding of the PUSCH within 1ms, that is, the BRU forwards the PUSCH sent by the UE to the base station on subframe n+7, and the base station cannot obtain the BRU sent to the UE on subframe n+8.
  • PUSCH demodulation result if it is implemented according to the current protocol timing, that is, the base station forcibly schedules HARQ on subframe n+8. If the HARQ instructs the UE to transmit on the HARQ channel, the retransmitted HARQ combined gain is lost; if The HARQ instructs the UE to retransmit in the HARQ. If the initial transmission is correct, the HARQ retransmission is unnecessary, and resources are wasted. Or, the base station instructs the UE to suspend HARQ in subframe n+8, which expands HARQ RTT and causes longer transmission delay.
  • FIG. 3 it is a schematic diagram of the current downlink scheduling sequence, that is, according to the minimum transmission delay, the BRU and the UE alternately use uplink air interface resources.
  • the flow of the base station scheduling UE and BRU according to the time sequence shown in FIG. 3 includes the following steps:
  • the base station schedules a Physical Downlink Control Channel (PDCCH) or PDSCH for the UE on subframe n-8;
  • PDCH Physical Downlink Control Channel
  • PDSCH Physical Downlink Control Channel
  • the base station sends the downlink scheduling management frame information for scheduling the UE to the BRU in subframe n-7, and instructs the BRU to demodulate the PUCCH of the UE;
  • the base station allocates an uplink grant to the BRU in subframe n-5 for the BRU to transmit the PUCCH sent by the UE;
  • the UE sends the downlink ACK feedback corresponding to step 31) in subframe n-5;
  • the BRU sends the PUSCH corresponding to step 33), and the PUSCH carries the demodulation result of the PUCCH sent by the UE in step 34).
  • the interval between the downlink scheduling subframe and the downlink ACK feedback is fixed to 4 subframes, for example, the downlink scheduling subframe in step 31) is subframe n- 8.
  • the subframe where the downlink ACK feedback is located is subframe n-4, so that the UE cannot be scheduled in every downlink subframe. As shown in Figure 3, how much is the UE in a scheduling period (10 subframes)? One downlink subframe is unavailable, which wastes air interface resources.
  • the base station needs to continuously schedule the BRU to transmit the uplink PUSCH, which increases the uplink air interface overhead; otherwise, the BRU needs to buffer the UE’s downlink ACK feedback to feed back the UE’s continuous feedback at one time Multiple downlink ACK feedback.
  • the base station in order to be compatible with the transmission mechanism specified in the current protocol, and to ensure that the base station has enough time to obtain the demodulation result of the PUSCH from the UE before scheduling the uplink HARQ for the UE forwarded by the relay device; and When the base station performs downlink scheduling on the UE and the BRU, the utilization rate of the uplink air interface resources is improved.
  • the embodiment of the present application provides a communication method based on the relay communication system shown in FIG. 1.
  • the base station can indicate the subframes for uplink transmission between the UE and the BRU through configuration information, that is, the configuration information restricts HARQ timing, thereby meeting various constraints of the LTE FDD system.
  • the application of the technical solutions provided by the present application to the network architecture shown in FIG. 1 is taken as an example.
  • the method can be executed by three communication devices, for example, the first communication device, the second communication device, and the third communication device.
  • the first communication device may be a network device or a communication device capable of supporting the network device to realize the functions required by the method, or the first communication device may be a terminal device or a communication device capable of supporting the terminal device to realize the functions required by the method Or, the first communication device may be a relay device or a communication device capable of supporting the relay device to implement the functions required by the method, and of course, it may also be other communication devices, such as a chip system.
  • the second communication device may be a network device or a communication device capable of supporting the network device to implement the functions required by the method, or the second communication device may be a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method, or The second communication device may be a relay device or a communication device capable of supporting the functions required by the relay device to implement the method, and of course, it may also be another communication device, such as a chip system.
  • the third communication device may be a network device or a communication device capable of supporting the network device to implement the functions required by the method, or the third communication device may be a terminal device or a communication device capable of supporting the terminal equipment to implement the functions required by the method, or The third communication device may be a relay device or a communication device capable of supporting the functions required by the relay device to implement the method, and of course, it may also be another communication device, such as a chip system.
  • the first communication device may be a network device
  • the second communication device is a terminal device
  • the third communication device is a relay device.
  • the first communication device is a network device
  • the second communication device is a communication device that can support the terminal device to implement the functions required by the method
  • the third communication device is a relay device
  • the first communication device is a network device that can support
  • the second communication device is a communication device capable of supporting the terminal device to realize the functions required by the method
  • the third communication device is a communication device capable of supporting the relay device to realize the functions required by the method and many more.
  • the network equipment is, for example, a base station.
  • the method is executed by the network device and the terminal device as an example, that is, the first communication device is the network device and the second communication device is the terminal device as an example.
  • the network equipment described below may be the network equipment (DeNB) in the network architecture shown in FIG. 1
  • the terminal equipment described below may be The terminal equipment (UE) in the network architecture shown in 1
  • the relay device described below may be the relay equipment (BRU) in the network architecture shown in FIG.
  • FIG. 4 is a communication method provided by an embodiment of this application. The flow of the method is described as follows.
  • the DeNB sends configuration information to the UE, so that the UE receives the configuration information, where the configuration information is used to instruct the UE to send the uplink subframe of the first uplink channel to the BRU, and the BRU to send the uplink subframe of the second uplink channel to the DeNB. frame.
  • the DeNB schedules the UE to send the first uplink channel to the BRU in subframe n1 according to the configuration information, and schedules the BRU to send the second uplink channel to the DeNB in subframe n1+k1.
  • the UE performs uplink transmission according to the configuration information.
  • the DeNB before performing uplink and downlink scheduling on the UE and BRU, can determine the uplink air interface resources and downlink air interface resources available to the UE and the BRU, so that during the uplink scheduling process, the DeNB sends the HARQ feedback to the UE.
  • the interval between the subframe and the subframe where the BRU sends the second uplink channel to the DeNB is at least 1 subframe to ensure that the DeNB has enough time to correctly receive and decode the second uplink channel before sending the HARQ feedback.
  • the DeNB can determine the configuration information, which can be used To instruct the UE to send the uplink subframe of the first uplink channel to the BRU, and the BRU to send the uplink subframe of the second uplink channel to the DeNB, for example, the UE sends the first uplink channel to the BRU in subframe n1, and the BRU in subframe n1 +k1 sends the second uplink channel to the DeNB.
  • n1 is a positive integer.
  • k1 can be equal to or greater than 1, so as to ensure that the UE and the BRU use co-frequency resources in time sharing, thereby avoiding BRU transmission and reception interference.
  • the DeNB After determining the configuration information, the DeNB sends the configuration information to the UE, so that the UE performs uplink transmission according to the configuration information.
  • the manner in which the DeNB sends configuration information to the UE includes but is not limited to the following three manners:
  • the configuration information can be carried in MSG4, and the DeNB sends the MSG4 to the UE to inform the UE.
  • the DeNB schedules the UE to send a random access channel (ran1dom access chan1n1el, RACH) to the BRU.
  • the RACH can carry a random sequence (Preamble), so that the BRU forwards the received Preamble to the DeNB.
  • the BRU sends a PUSCH to the DeNB.
  • PUSCH carries Preamble.
  • the DeNB determines that the uplink transmission channel of the UE is transmitted through the BRU according to the detection result of the Preamble, and the DeNB sends a random access response to the UE.
  • the UE receives the random access response from the DeNB, and the UE sends MSG2 and MSG3 to the BRU, so that the BRU sends the received MSG2 and MSG3 to the DeNB.
  • the configuration information is carried in the MSG4 message.
  • the DeNB sends MSG4 to the UE to instruct the UE.
  • the DeNB schedules the uplink and downlink subframes of the UE and BRU for uplink transmission. Alternatively, it can also be considered to indicate the UE.
  • the DeNB schedules the uplink and downlink subframes of the UE and BRU. Frame scheduling timing relationship.
  • the configuration information can be carried in a radio resource control (Radio Resource Control, RRC) connection reconfiguration message, and the DeNB sends the RRC connection reconfiguration message to the UE.
  • RRC Radio Resource Control
  • the configuration information may be carried in the RRC connection reconfiguration message.
  • the UE can perform uplink and downlink scheduling according to the uplink and downlink subframe scheduling timing relationship indicated by the configuration information.
  • the configuration information can be carried in a system message, and the DeNB sends the system message to the UE to inform the UE.
  • the configuration information may be carried in system messages, for example, in system information block (SIB System Information Block, SIB) 1, or other possible system messages.
  • SIB System Information Block
  • the UE sends the first uplink channel to the BRU in subframe n1, for example, PUCCH, PUSCH, or Physical Random Access Channel (PRACH), etc.
  • the BRU sends the second uplink channel to the DeNB in the subframe n1+k1, where the second uplink channel includes the demodulation result of the first uplink channel.
  • the DeNB receives and demodulates the second uplink channel.
  • the DeNB may also send HARQ feedback to the UE to instruct the UE to retransmit or newly transmit the first uplink channel. For example, the DeNB sends HARQ feedback to the UE in subframe n1+K.
  • the difference between K and k1 is greater than or equal to 2, that is, there is at least one interval between the subframe where the DeNB sends HARQ feedback and the subframe where the BRU sends the second uplink channel to the DeNB. Subframes.
  • the embodiment of the present application can determine the uplink and downlink scheduling time sequence to determine the configuration information indicating the uplink and downlink scheduling time sequence.
  • the configuration information may include the ratio of TDM uplink and downlink subframes, and may also include the ratio of TDD uplink and downlink subframes. That is, in this embodiment of the application, the DeNB informs the UE of the ratio of TDM uplink and downlink subframes. Or TDD uplink and downlink subframe ratio to inform the UE of the uplink and downlink scheduling timing.
  • the configuration information may include TDM uplink and downlink subframe ratio 0, TDM uplink and downlink subframe ratio 1, TDM uplink and downlink subframe ratio 2, TDM uplink and downlink subframe ratio 3, TDM uplink and downlink subframe ratio Ratio 4. TDM uplink and downlink subframe ratio 5 or TDM uplink and downlink subframe ratio 6; alternatively, the configuration information may include TDD uplink and downlink subframe ratio 0, TDD uplink and downlink subframe ratio 1, TDD uplink and downlink subframe ratio Ratio 2, TDD uplink and downlink subframe ratio 3, TDD uplink and downlink subframe ratio 4, TDD uplink and downlink subframe ratio 5, or TDD uplink and downlink subframe ratio 6.
  • Different TDM uplink and downlink subframe ratios or different TDD uplink subframe ratios have different corresponding uplink and downlink scheduling timings.
  • the following are the two processes of uplink scheduling and downlink scheduling.
  • the first uplink channel is PUSCH and the second uplink channel is also PUSCH.
  • the UE and BRU still use the FDD mode to occupy uplink air interface resources for uplink transmission.
  • the embodiment of the application may determine that the DeNB schedules the UE to send the PUSCH to the BRU on the subframe n1, and the DeNB schedules the BRU to perform the relay link transmission to the DeNB on the subframe n1+k1.
  • the DeNB can schedule the UE to send a downlink response ACK feedback to the BRU on subframe n2 according to the configuration information, and schedule the BRU to send the second ACK feedback to the DeNB on subframe n2+k2.
  • Three upstream channels For example, the DeNB schedules a downlink PDCCH or PDSCH for the UE in subframe n2, and the BRU sends a PUSCH to the DeNB in subframe n2+k2, and the PUSCH carries the demodulation result of the PDCCH or PDSCH.
  • n1 and n2 are only for distinguishing between uplink scheduling and downlink scheduling, and do not have a referential meaning.
  • n1 and n2 are collectively referred to as n
  • k1 and k2 are collectively referred to as k.
  • the uplink and downlink scheduling timing may include the following situations:
  • the value of k may be different under different TDM uplink and downlink subframe ratios, including the following situations:
  • n 1 represents the first uplink subframe, and so on, n is 2 represents the second uplink subframe, n is 3 represents the third uplink subframe, and n is 4 represents the fourth uplink subframe.
  • the first available subframe is called the first uplink subframe
  • the second available subframe is called the second uplink subframe. and many more.
  • the first frame includes subframe 0 to subframe 9, where subframe 2 is the first uplink subframe, Subframe 3 is the second uplink subframe, subframe 4 is the third uplink subframe, subframe 7 is the fourth uplink subframe, subframe 8 is the fifth uplink subframe, and subframe 9 is the sixth
  • the HARQ offset is 2
  • one frame includes subframe 2 to subframe 11, that is, includes subframe 2 to subframe 9 of the first frame, and the next frame (the first frame) Two frames) subframe 0 and subframe 1.
  • subframe 4 is the first uplink subframe
  • subframe 5 is the second uplink subframe
  • subframe 6 is the third uplink subframe
  • subframe 9 is the fourth uplink subframe
  • subframe 9 is the fourth uplink subframe.
  • Subframe 0 in the frame is the fifth uplink subframe
  • subframe 1 in the second frame is the sixth uplink subframe.
  • the HARQ offset is 0 as an example.
  • the value of k corresponding to the first uplink subframe and the fourth uplink subframe is 3 or 4
  • the value of k corresponding to each uplink subframe is 2 or 3
  • the value of k corresponding to the third uplink subframe and the sixth uplink subframe is 2.
  • FIG. 5A is a schematic diagram of a TDM uplink scheduling sequence.
  • line 1 and line 6 indicate that the DeNB allocates uplink scheduling to the UE
  • line 2 indicates that the DeNB sends the UE's uplink scheduling management frame information to the BRU
  • line 3 indicates that the DeNB allocates the BRU to the BRU.
  • lines 4 and 8 indicate that the UE sends PUSCH to the BRU
  • lines 5 and 9 indicate that the BRU sends a PUSCH to the DeNB
  • line 7 indicates that the DeNB sends HARQ feedback to the UE.
  • subframe n is the first subframe in a frame
  • n+9 is the last subframe in this frame.
  • the following description takes the timing of two frames as an example, where subframe n to subframe n+9 are one frame, and subframe n+10 to subframe n+19 are the next frame.
  • the number of n can be 0. In the following, the number of n is 0 as an example, that is, starting from subframe 0.
  • the DeNB allocates an uplink grant to the UE on subframe n, and the DeNB can send the current uplink scheduling management frame information of the UE to the BRU on subframe n to instruct the BRU to demodulate the PUSCH of the UE.
  • the DeNB can allocate an uplink grant to the BRU in subframe n+2 or subframe n+3 for the BRU to transmit the PUSCH sent by the UE.
  • Figure 5A takes the DeNB as an example to allocate uplink grants to the BRU on subframe n+3.
  • the BRU sends the PUSCH to the DeNB within 4 subframes of the uplink grant interval.
  • the DeNB may send HARQ feedback to the UE in subframe n+10 according to the provisions of the TDM uplink and downlink scheduling timing to instruct the UE to resend the PUSCH.
  • the UE can send the PUSCH to the BRU in subframe n+4, subframe n+5, or subframe n+6.
  • Subframe n+4 is the first uplink subframe of the UE, and so on, subframe n+5 is the second uplink subframe of the UE, and subframe n+6 is the third uplink subframe of the UE.
  • the UE may send the PUSCH in the first uplink subframe, that is, the UE sends the PUSCH on subframe n+4, the BRU sends the PUSCH to the DeNB on subframe n+7, and the DeNB sends the PUSCH to the UE on subframe n+10.
  • Send HARQ feedback that is, there are 2 subframes between subframe n+10 and subframe n+7, so it can ensure that the DeNB has enough time to complete the demodulation and decoding of the relay PUSCH before sending the HARQ feedback to get the UE to send PUSCH CRC result and complete uplink scheduling.
  • the difference between k equal to (n+7) and (n+4) is 3, that is, the value of k corresponding to the first uplink subframe is 3.
  • the BRU can also send the PUSCH to the DeNB on subframe n+8, as shown in Figure 5B.
  • the difference between FIG. 5B and FIG. 5A is that the DeNB allocates an uplink grant to the BRU in subframe n+2 to follow the TDM uplink and downlink scheduling timing.
  • k is equal to the difference between (n+8) and (n+4), which is 4, that is, the value of k corresponding to the first uplink subframe is 4. Therefore, the value of k corresponding to the first uplink subframe is 3 or 4.
  • the time interval between the subframe where the DeNB sends HARQ feedback and the subframe where the DeNB receives the PUSCH sent by the BRU is at least 2 subframes, that is, more time is reserved.
  • the embodiment of this application This allows the DeNB to have enough time to complete the demodulation and decoding of the relay PUSCH before sending the HARQ feedback to obtain the CRC result of the PUSCH sent by the UE and complete the uplink scheduling, thereby avoiding the loss of the HARQ combined gain of the retransmission, and at the same time, it also reduces The possibility that the DeNB suspends HARQ in subframe n+8 reduces HARQ RTT and reduces transmission delay.
  • the DeNB may also allocate an uplink grant to the UE in subframe n+10 to indicate the new transmission or retransmission of the HARQ.
  • the UE performs a new transmission or adaptive retransmission or non-adaptive retransmission on the HARQ in subframe n+14.
  • subframe n+14 can be considered as the fourth uplink subframe of the UE.
  • the scheduling process is the same as the scheduling process from subframe n+4 to subframe n+10.
  • the BRU can send PUSCH to the DeNB in subframe n+16, subframe n+17, or subframe n+18, so,
  • the value of k corresponding to the fourth uplink subframe is also 3 or 4, which will not be repeated here.
  • the UE may send the PUSCH in the second uplink subframe, that is, the UE sends the PUSCH in the subframe n+4.
  • the BRU may send the PUSCH in subframe n+6, and correspondingly, the DeNB sends uplink allocation to the BRU in subframe n+2.
  • k is equal to the difference between (n+6) and (n+4), which is 2, that is, the value of k corresponding to the second uplink subframe is 2.
  • the DeNB can also allocate uplink authorization for the UE in subframe n+10, and the UE sends PUSCH in subframe n+14 (the fifth uplink subframe), that is The value of k corresponding to the fifth uplink subframe is also 2.
  • the BRU sends PUSHC in subframe n+7, as shown in Figure 5D.
  • the DeNB sends an uplink allocation to the BRU in subframe n+3.
  • the difference between k equal to (n+7) and (n+4) is 3, that is, the value of k corresponding to the second uplink subframe can also be 3.
  • the value of k corresponding to the fifth uplink subframe is also 3.
  • the UE sends the PUSCH in the third uplink subframe, that is, the UE sends the PUSCH in subframe n+4.
  • the BRU may send the PUSCH in subframe n+6, and correspondingly, the DeNB sends uplink allocation to the BRU in subframe n+2.
  • the difference between k equal to (n+6) and (n+4) is 2, that is, the value of k corresponding to the third uplink subframe is 2.
  • the DeNB can also allocate uplink grants to the UE in subframe n+10, and the UE in subframe n+14 (the sixth uplink subframe ) Send PUSCH, that is, k corresponding to the sixth uplink subframe is equal to 2.
  • TDM uplink and downlink subframe ratio 1 when n is 1 or 4, k is 2, 3 or 4; when n is 2 or 5, k is 2 or 3, that is, the first uplink subframe and The value of k corresponding to the fourth uplink subframe is 2, 3, or 4, and the value of k corresponding to the second uplink subframe and the fifth uplink subframe is 2 or 3.
  • FIG. 6A is a schematic diagram of a TDM uplink scheduling sequence.
  • the difference from FIG. 5A is that the TDM uplink and downlink subframe ratio shown in FIG. 6A is different from the TDM uplink and downlink subframe ratio shown in FIG. 5A.
  • the DeNB when the DeNB allocates uplink scheduling to the UE in subframe n, according to the TDM uplink and downlink scheduling timing, it can be known that the DeNB sends HARQ feedback to the UE in subframe n+10.
  • the BRU can be used in subframes n+6, n+7 or n+ 8 sends PUSCH to DeNB.
  • Fig. 6A takes as an example that the BRU can send the PUSCH to the DeNB in subframe n+6.
  • the DeNB allocates an uplink grant to the BRU in subframe n+2 to follow the TDM uplink and downlink scheduling timing.
  • the UE may send the PUSCH to the BRU on subframe n+4.
  • the difference between k equal to (n+6) and (n+4) is 2, that is, the value of k corresponding to the first uplink subframe is 2.
  • the BRU sends PUSCH to the DeNB in subframe n+7, and the DeNB allocates uplink authorization to the BRU in subframe n+3.
  • k is equal to the difference between (n+7) and (n+4). It is 3, that is, the value of k corresponding to the first uplink subframe can be 3.
  • the BRU sends PUSCH to the DeNB in subframe n+8, and the DeNB allocates an uplink grant to the BRU in subframe n+4.
  • k is equal to the difference between (n+8) and (n+4) That is 4, that is, the value of k corresponding to the first uplink subframe can be 4.
  • the DeNB may also allocate an uplink grant to the UE in the subframe n+10 to indicate the new transmission or retransmission of the HARQ. After that, the UE performs a new transmission or adaptive retransmission or non-adaptive retransmission on the HARQ in subframe n+14.
  • the subframe n+14 corresponds to the fourth uplink subframe of the UE.
  • the scheduling process is the same as the scheduling process from subframe n+4 to subframe n+10.
  • the BRU can send PUSCH to the DeNB in subframe n+16, subframe n+17, or subframe n+18, and the subsequent process No longer.
  • the UE sends the PUSCH in the second uplink subframe, that is, the UE sends the PUSCH in subframe n+4, the DeNB allocates uplink grants to the BRU in subframe n+2, and the BRU in subframe n +6 sends PUSHC, DeNB sends HARQ feedback to UE on subframe n+10, at this time, k is equal to the difference between (n+6) and (n+4), which is 2, that is, the second uplink subframe corresponds to k The value is 2.
  • the DeNB can also allocate uplink grants to the UE in subframe n+10, and it can be deduced that the value of k corresponding to the fifth uplink subframe is also 2.
  • the UE sends the PUSCH in the second uplink subframe, that is, the UE sends the PUSCH in subframe n+4, the DeNB allocates uplink grants to the BRU in subframe n+3, and the BRU in subframe n+ 7 Send PUSHC, DeNB sends HARQ feedback to UE on subframe n+10.
  • k is equal to the difference between (n+7) and (n+4), which is 3, that is, the second uplink subframe corresponds to k The value is 3.
  • the DeNB can also allocate uplink grants to the UE in subframe n+10, and it can be deduced that the value of k corresponding to the fifth uplink subframe is also 3.
  • the time interval between the DeNB sending HARQ feedback and the DeNB receiving the PUSCH sent by the BRU is at least 1 subframe, that is, more time is reserved for the DeNB to demodulate the PUSCH sent by the BRU This allows the DeNB to have enough time to complete the demodulation and decoding of the relay PUSCH before sending the HARQ feedback to obtain the CRC result of the PUSCH sent by the UE and complete the uplink scheduling.
  • TDM uplink and downlink subframe ratio 2 when n is 1 or 4, k is 2, 3 or 4, that is, the value of k corresponding to the first uplink subframe and the fourth uplink subframe is 2 , 3, or 4.
  • FIG. 7 is a schematic diagram of a TDM uplink scheduling sequence.
  • the DeNB allocates an uplink grant for the UE in subframe n, and the DeNB sends HARQ feedback to the UE in subframe n+10. If the UE sends PUSCH in the first uplink subframe, that is, the UE sends PUSCH on subframe n+4, the BRU can send PUSCH to DeNB on subframe n+6 (as shown by the thin solid line 5 in Figure 7), then Correspondingly, the DeNB allocates an uplink grant to the BRU in subframe n+2 (as shown by the thin solid line 3 in FIG. 7), and k is the difference between (n+6) and (n+4), that is, 2.
  • the BRU can send the PUSCH to the DeNB in subframe n+7 (as shown by the thick solid line 5 in Figure 7), then correspondingly, the DeNB allocates uplink grants for the BRU in subframe n+3 (as shown in the thick solid line in Figure 7).
  • k is the difference between (n+7) and (n+4), namely 3;
  • the BRU can send the PUSCH to the DeNB in subframe n+8 (as shown by the thin dashed line 5 in Figure 7), then correspondingly, the DeNB allocates an uplink grant for the BRU in subframe n+4 (as shown in the thin dashed line 3 in Figure 7).
  • k is the difference between (n+8) and (n+4), that is, 4.
  • the DeNB can allocate the uplink grant to the UE in the subframe n+10 to indicate the new transmission or retransmission of the HARQ. After that, the UE performs a new transmission or adaptive retransmission or non-adaptive retransmission on the HARQ in subframe n+14.
  • the subframe n+14 corresponds to the fourth uplink subframe of the UE.
  • the scheduling process is the same as the scheduling process from subframe n+4 to subframe n+10.
  • the BRU can send PUSCH to the DeNB in subframe n+16, subframe n+17, or subframe n+18, and the subsequent process No longer.
  • the time interval between the HARQ feedback sent by the DeNB and the PUSCH sent by the BRU received by the DeNB is at least 1 subframe. That is, more time is reserved for the DeNB to demodulate the PUSCH sent by the BRU. Before sending the HARQ feedback, there is enough time to complete the demodulation and decoding of the relay PUSCH to obtain the CRC result of the PUSCH sent by the UE and complete the uplink scheduling.
  • TDM uplink and downlink subframe ratio 3 when n is 1, k is 3 or 4; when n is 2 or 3, k is 2, 3 or 4, that is, the first uplink subframe corresponds to k 3 or 4, the corresponding k of the second uplink subframe and the third uplink subframe is 2, 3, or 4:
  • FIG. 8A is a schematic diagram of a TDM uplink scheduling sequence.
  • the DeNB allocates an uplink grant for the UE in subframe n, and the DeNB sends HARQ feedback to the UE in subframe n+10.
  • the BRU can send the PUSCH to the DeNB on subframe n+7 (as shown by the thin solid line 5 in Figure 8A), then Correspondingly, the DeNB allocates an uplink grant to the BRU in subframe n+3 (as shown by the thin solid line 3 in FIG. 8A), and k is the difference between (n+7) and (n+4), that is, 3.
  • the BRU sends the PUSCH to the DeNB in subframe n+8, (as shown by the thick solid line 5 in Figure 8A), then correspondingly, the DeNB allocates uplink grants to the BRU in subframe n+4 (as shown in Figure 8A with the thick solid line 3), at this time k is the difference between (n+8) and (n+4), namely 4. Therefore, the value of k corresponding to the first uplink subframe is 3 or 4.
  • the UE sends PUSCH in the second uplink subframe, that is, the UE sends PUSCH on subframe n+5, and the BRU sends PUSCH to DeNB on subframe n+7 (as shown in Figure 8B).
  • the DeNB allocates an uplink grant for the BRU in subframe n+3 (shown by the thin solid line 3 in Figure 8B), and k is (n+7) and (n+5) The difference is 2.
  • the DeNB allocates an uplink grant for the BRU in subframe n+5 (as shown by the thin dashed line 3 in Figure 8B).
  • k is the difference between (n+9) and (n+5), namely 4. That is, the value of k corresponding to the second uplink subframe is 2, 3, or 4.
  • the UE sends PUSCH in the third uplink subframe, that is, the UE sends PUSCH on subframe n+6, and the BRU sends PUSCH to DeNB on subframe n+8 (as shown in Figure 8C).
  • the DeNB allocates an uplink grant for the BRU in subframe n+4 (shown by the thin solid line 3 in Figure 8C), and k is (n+8) and (n+6) The difference is 2.
  • the DeNB allocates an uplink grant for the BRU in subframe n+6 (as shown in the thin dashed line 3 in Figure 8C).
  • k is the difference between (n+10) and (n+6), namely 4. That is, the value of k corresponding to the third uplink subframe is 2, 3, or 4.
  • the time interval between the DeNB sending HARQ feedback and the DeNB receiving the PUSCH sent by the BRU is at least 1 subframe, that is, more time is reserved for the DeNB to demodulate the PUSCH sent by the BRU. This allows the DeNB to have enough time to complete the demodulation and decoding of the relay PUSCH before sending the HARQ feedback to obtain the CRC result of the PUSCH sent by the UE and complete the uplink scheduling.
  • FIG. 9A is a schematic diagram of a TDM uplink scheduling sequence.
  • the DeNB allocates an uplink grant for the UE in subframe n, and the DeNB sends HARQ feedback to the UE in subframe n+10. If the UE sends the PUSCH in the first uplink subframe, that is, the UE sends the PUSCH on subframe n+4, the BRU can send the PUSCH to the DeNB on subframe n+6 (as shown by the thin solid line 5 in Figure 9A), then Correspondingly, the DeNB allocates an uplink grant to the BRU in subframe n+2 (as shown by the thin solid line 3 in FIG. 9A), and k is the difference between (n+6) and (n+4), that is, 2.
  • the DeNB allocates an uplink grant to the BRU in subframe n+3 (as shown in Figure 9A with the thick solid line 3), at this time k is the difference between (n+7) and (n+4), namely 3.
  • the DeNB allocates an uplink grant for the BRU in subframe n+4 (as shown by the thin dashed line 3 in Figure 9A).
  • k is the difference between (n+8) and (n+4), namely 4. That is, the value of k corresponding to the first uplink subframe is 2, 3, or 4.
  • the BRU can send the PUSCH to the DeNB on subframe n+7 (as shown by the thin solid line 5 in Figure 9B) ), then correspondingly, the DeNB allocates an uplink grant to the BRU in subframe n+3 (as shown by the thin solid line 3 in Figure 9B), and k is the difference between (n+7) and (n+5), that is 2.
  • the DeNB allocates uplink grants to the BRU in subframe n+4 (as shown in Figure 9B thick solid line 3), at this time k is the difference between (n+8) and (n+5), namely 3.
  • the DeNB allocates an uplink grant for the BRU in subframe n+5 (as shown by the thin dashed line 3 in Figure 9B).
  • k is the difference between (n+9) and (n+5), namely 4. That is, the value of k corresponding to the second uplink subframe is 2, 3, or 4.
  • the time interval between the DeNB sending HARQ feedback and the DeNB receiving the PUSCH sent by the BRU is at least 1 subframe, that is, more time is reserved for the DeNB to demodulate the PUSCH sent by the BRU. This allows the DeNB to have enough time to complete the demodulation and decoding of the relay PUSCH before sending the HARQ feedback to obtain the CRC result of the PUSCH sent by the UE and complete the uplink scheduling.
  • FIG. 10 is a schematic diagram of a TDM uplink scheduling sequence.
  • the DeNB allocates an uplink grant for the UE in subframe n, and the DeNB sends HARQ feedback to the UE in subframe n+10. If the UE sends the PUSCH in the first uplink subframe, that is, the UE sends the PUSCH on subframe n+4, the BRU can send the PUSCH to the DeNB on subframe n+6 (as shown by the thin solid line 5 in Figure 10), then Correspondingly, the DeNB allocates an uplink grant to the BRU in subframe n+2 (as shown by the thin solid line 3 in FIG. 10), and k is the difference between (n+6) and (n+4), that is, 2.
  • the BRU can send the PUSCH to the DeNB in subframe n+7 (as shown by the thick solid line 5 in Figure 10), then correspondingly, the DeNB allocates uplink grants for the BRU in subframe n+3 (as shown in the thick solid line in Figure 10).
  • k is the difference between (n+7) and (n+4), namely 3.
  • the BRU can send the PUSCH to the DeNB in subframe n+8 (as shown by the thin dashed line 5 in Figure 10), and correspondingly, the DeNB allocates the uplink grant for the BRU in subframe n+4 (as shown by the thin dashed line 3 in Figure 10).
  • k is the difference between (n+8) and (n+4), namely 4. That is, the value of k corresponding to the first uplink subframe is 2, 3, or 4.
  • the time interval between the HARQ feedback sent by the DeNB and the PUSCH sent by the BRU received by the DeNB is at least 1 subframe. That is, more time is reserved for the DeNB to demodulate the PUSCH sent by the BRU. Before sending the HARQ feedback, there is enough time to complete the demodulation and decoding of the relay PUSCH to obtain the CRC result of the PUSCH sent by the UE and complete the uplink scheduling.
  • n 1, k is 3 or 4; when n is 2 or 5, k is 2 or 3; when n is 3, k is 2; n is 4
  • k 2, 3 or 4
  • the first uplink subframe corresponds to k is 3 or 4
  • the second uplink subframe and the fifth uplink subframe correspond to k is 2 or 3
  • the third uplink subframe corresponds to Corresponding to k is 2, and corresponding to k of the fourth uplink subframe is 2, 3, or 4.
  • FIG. 11A is a schematic diagram of a TDM uplink scheduling sequence.
  • the DeNB allocates an uplink grant for the UE in subframe n, and the DeNB sends HARQ feedback to the UE in subframe n+10. If the UE sends PUSCH in the first uplink subframe, that is, the UE sends PUSCH on subframe n+4, BRU can send PUSCH to DeNB on subframe n+7 (as shown by the thin solid line 5 in Figure 11A), then Correspondingly, the DeNB allocates an uplink grant to the BRU in subframe n+3 (as shown by the thin solid line 3 in FIG. 11A). At this time, k is the difference between (n+7) and (n+4), that is, 3.
  • the BRU can send the PUSCH to the DeNB in subframe n+8, (as shown by the thick solid line 5 in Figure 11A), then correspondingly, the DeNB allocates uplink grants to the BRU in subframe n+4 (as shown in Figure 11A thick solid line).
  • Line 3 at this time k is the difference between (n+8) and (n+4), namely 4. That is, the value of k corresponding to the first uplink subframe is 3 or 4.
  • the DeNB allocates uplink grants to the BRU in subframe n+2 (as shown by the thin solid line 3 in Figure 11B), and k is (n+6) and (n+4) The difference is 2.
  • the BRU can send PUSCH to the DeNB in subframe n+7, (as shown by the thick solid line 5 in Figure 11B), then correspondingly, the DeNB allocates uplink grants to the BRU in subframe n+3 (as shown in Figure 11B thick solid line).
  • Line 3), at this time k is the difference between (n+7) and (n+4), namely 3. That is, the value of k corresponding to the second uplink subframe is 2 or 3.
  • the UE sends PUSCH in the third uplink subframe, that is, the UE sends PUSCH on subframe n+4, and the BRU sends PUSCH to DeNB on subframe n+6, then the corresponding,
  • the DeNB allocates an uplink grant to the BRU in subframe n+2, and k is the difference between (n+6) and (n+4), that is, 2.
  • subframe n shown in FIG. 11D is the second uplink subframe of the UE
  • subframe n+1 is the third uplink subframe of the UE.
  • the BRU can send the PUSCH to the DeNB in subframe n+6, subframe n+7, or subframe n+8, and it can be deduced that k is equal to 2, 3, or 4. That is, the value of k corresponding to the fourth uplink subframe is 2, 3, or 4.
  • the UE sends the PUSCH in the fifth uplink subframe, that is, the UE sends the PUSCH in subframe n+4.
  • the subframe n shown in FIG. 11E is the third uplink subframe of the UE
  • the subframe n+1 is the fourth uplink subframe of the UE.
  • the BRU can send PUSCH to the DeNB in subframe n+6 or subframe n+7, and it can be derived that k is equal to 2 or 3. That is, the value of k corresponding to the fifth uplink subframe is 2 or 3.
  • the time interval between the DeNB sending HARQ feedback and the DeNB receiving the PUSCH sent by the BRU is at least 1 subframe, that is, more time is reserved for the DeNB to demodulate the PUSCH sent by the BRU. This allows the DeNB to have enough time to complete the demodulation and decoding of the relay PUSCH before sending the HARQ feedback to obtain the CRC result of the PUSCH sent by the UE and complete the uplink scheduling.
  • Table 1 takes HARQ offset of 0 and 1 as an example, where HARQ offset of 0 corresponds to subframe 2, subframe 3, and subframe 4, and HARQ offset of 0 corresponds to subframe 7, subframe 8, and subframe 9.
  • sa0 represents TDM uplink and downlink subframe ratio
  • sa1 represents TDM uplink and downlink subframe ratio
  • sa2 represents TDM uplink and downlink subframe ratio
  • sa3 represents TDM uplink and downlink subframe ratio
  • sa4 represents TDM uplink and downlink subframe ratio 4
  • sa5 represents TDM uplink and downlink subframe ratio 5
  • sa6 represents TDM uplink and downlink subframe ratio 6.
  • Subframe 2 represents the first uplink subframe of the UE
  • subframe 3 represents the second uplink subframe of the UE
  • subframe 4 represents the third uplink subframe of the UE
  • subframe 7 represents the fourth uplink subframe of the UE.
  • subframe 8 represents the fifth uplink subframe of the UE
  • subframe 9 represents the sixth uplink subframe of the UE; the rest of the subframes can be deduced by analogy.
  • 2/3 indicates that the value of k is 2 or 3
  • 3/4 indicates that the value of k is 3 or 4
  • 2/3/4 indicates that the value of k is 2 or 3 or 4.
  • the value of k may be different under different TDD uplink and downlink subframe ratios, including the following situations:
  • TDD uplink and downlink subframe ratio when n is 1 or 4, k is 2; when n is 2 or 5, k is 2 or 3, that is, the first uplink subframe and the fourth uplink The corresponding k of the subframe is 2, and the corresponding k of the second uplink subframe and the fifth uplink subframe is 2 or 3.
  • FIG. 12A is a schematic diagram of a TDD uplink scheduling sequence.
  • the UE sends the PUSCH in the first uplink subframe.
  • the DeNB allocates an uplink grant to the UE on the subframe n, and at the same time, the DeNB can send the current uplink scheduling management frame information of the UE to the BRU on the subframe n to instruct the BRU to demodulate the PUSCH of the UE.
  • the DeNB allocates an uplink grant to the BRU in subframe n+4 for the BRU to transmit the PUSCH sent by the UE.
  • the DeNB sends HARQ feedback to the UE in subframe n+10 to instruct the UE to resend the PUSCH.
  • the UE sends the PUSCH to the BRU after receiving the uplink authorization, and the available uplink subframes for the UE start from subframe n+6, that is, the first uplink subframe of the UE is subframe n+6, so the UE can be in subframe n +6 or send PUSCH on subframe n+7.
  • this embodiment of the application determines that the BRU sends the PUSCH on subframe n+8, that is, the first uplink subframe corresponds to the value of k.
  • the value is 2.
  • the DeNB can allocate the uplink grant to the UE in the subframe n+10 to indicate the new transmission or retransmission of the HARQ. After that, the UE performs a new transmission or adaptive retransmission or non-adaptive retransmission on the HARQ in subframe n+16.
  • subframe n+16 can be considered as the fourth uplink subframe of the UE. Therefore, in the same way, the value of k corresponding to the fourth uplink subframe is 2, which is not repeated here.
  • the UE transmits the PUSCH in the second uplink subframe.
  • the DeNB allocates an uplink grant to the BRU on subframe n+3 for the BRU to transmit the PUSCH sent by the UE.
  • the UE sends the PUSCH to the BRU on subframe n+4.
  • BUR can send PUSCH to DeNB on subframe n+6 (as shown by the thin solid line 5 in Figure 12B), that is, k is equal to 2, or BUR can send PUSCH to DeNB on subframe n+7 (as shown in Figure 12B
  • the middle thick solid line 5 that is, k equals 3.
  • the DeNB may send HARQ feedback to the UE in subframe n+10 to instruct the UE to resend the PUSCH.
  • the BRU sends the PUSCH to the DeNB in subframe n+6 or subframe n+7, there is at least 2 subframes between the DeNB sending HARQ feedback and the DeNB receiving the PUSCH from the BRU. Time can get the demodulation result of PUSCH. Therefore, the k corresponding to the second uplink subframe is 2 or 3. Similar to FIG. 12A, k corresponding to the fifth uplink subframe is also 2 or 3.
  • TDD uplink and downlink subframe ratio 2 when n is 1 or 4, k is 2, 3 or 4, that is, k is 2, 3 or corresponding to the first uplink subframe and the fourth uplink subframe 4.
  • the time sequence for the DeNB to schedule the UE and BRU for uplink transmission when the TDD uplink and downlink subframe ratio is 2 is the same as the time sequence for the DeNB to schedule the UE and BRU for uplink transmission when the TDM uplink and downlink subframe ratio is 2. I won't repeat it here.
  • k is 2, 3, or 4 for the first uplink subframe and the fourth uplink subframe.
  • the corresponding k of the first uplink subframe and the fourth uplink subframe is 2, 3, or 4, there is at least 1 subframe between the DeNB sending HARQ feedback and the DeNB receiving the PUSCH from the BRU, and there is enough time to obtain the PUSCH The demodulation result.
  • TDD uplink and downlink subframe ratio 3 when n is 1, k is 3 or 4; when n is 2 or 3, k is 2, 3 or 4, that is, the first uplink subframe corresponds to k 3 or 4, the corresponding k of the second uplink subframe and the third uplink subframe is 2, 3, or 4.
  • the time sequence for the DeNB to schedule the UE and BRU for uplink transmission when the TDD uplink and downlink subframe ratio is 3 is the same as the time sequence for the DeNB to schedule the UE and BRU for uplink transmission when the TDM uplink and downlink subframe ratio is 3. I won't repeat it here.
  • the first uplink subframe corresponds to k being 3 or 4
  • the second uplink subframe and the third uplink subframe correspond to k being 2, 3, or 4.
  • there is at least 1 subframe between the DeNB sending the HARQ feedback and the DeNB receiving the PUSCH from the BRU and there is enough time to obtain the PUSCH demodulation result.
  • TDD uplink and downlink subframe ratio 4 when n is 1 or 2, k is 2, 3 or 4, that is, k is 2, 3, or corresponding to the first uplink subframe and the second uplink subframe. 4.
  • the time sequence for the DeNB to schedule the UE and BRU for uplink transmission when the TDD uplink and downlink subframe ratio is 4 is the same as the time sequence for the DeNB to schedule the UE and BRU for uplink transmission when the TDM uplink and downlink subframe ratio is 3. I won't repeat it here.
  • the corresponding k of the first uplink subframe and the second uplink subframe is 2, 3, or 4. In this case, there is at least 1 subframe between the DeNB sending the HARQ feedback and the DeNB receiving the PUSCH from the BRU, and there is enough time to obtain the PUSCH demodulation result.
  • TDD uplink and downlink subframe ratio 5 when n is 1, k is 2, 3, or 4, that is, k is 2, 3, or 4 for the first uplink subframe.
  • the time sequence of the DeNB scheduling UE and BRU for uplink transmission when the TDD uplink and downlink subframe ratio is 5 in the configuration information is the same as the time sequence of scheduling the UE and BRU for uplink transmission by the DeNB when the TDM uplink and downlink subframe ratio is 5. I won't repeat it here.
  • the corresponding k of the first uplink subframe is 2, 3, or 4.
  • each TDD up and down The corresponding relationship between the row subframe ratio and the value of k is shown in Table 2 below. Among them, Table 2 takes subframe 0 to subframe 9 as an example.
  • sa0 represents TDD uplink and downlink subframe ratio
  • sa1 represents TDD uplink and downlink subframe ratio 1
  • sa2 represents TDD uplink and downlink subframe ratio 2
  • sa3 represents TDD uplink and downlink subframe ratio 3.
  • sa4 represents TDD uplink and downlink subframe ratio 4
  • sa5 represents TDD uplink and downlink subframe ratio 5
  • sa6 represents TDD uplink and downlink subframe ratio 6.
  • subframe 2 represents the first uplink subframe of the UE
  • subframe 3 represents the second uplink subframe of the UE
  • subframe 4 represents the third uplink subframe of the UE
  • subframe 7 represents the UE’s
  • subframe 8 represents the fifth uplink subframe of the UE
  • subframe 9 represents the sixth uplink subframe of the UE; the rest of the subframes are analogized.
  • 2/3 indicates that the value of k is 2 or 3
  • 3/4 indicates that the value of k is 3 or 4
  • 2/3/4 indicates that the value of k is 2 or 3 or 4.
  • the value of k may be different under different TDM uplink and downlink subframe ratios, including the following situations:
  • FIG. 13 is a schematic diagram of a TDM downlink scheduling sequence.
  • line 1 indicates that the DeNB schedules downlink PDCCH or PDSCH for the UE
  • line 2 indicates that the DeNB sends the UE's downlink scheduling management frame information to the BRU
  • line 3 indicates that the DeNB allocates uplink for the BRU Authorization
  • line 4 is the UE sending downlink ACK feedback to the BRU
  • line 5 is the BRU sending PUSCH to the DeNB to relay the UE's downlink ACK feedback.
  • the DeNB continuously reads and schedules multiple downlink subframes. For example, the DeNB schedules downlink for the UE on subframe n, subframe n+1, subframe n+2, subframe n+3, and subframe n+4. PDCCH or PDSCH, and at the same time, the DeNB can send the current downlink scheduling management frame information of the UE to the BRU in subframe n, subframe n+2, and subframe n+4, respectively, and instruct the BRU to demodulate the PUCCH of the UE.
  • the ellipse indicates that for downlink scheduling, these delimited subframes complete downlink ACK feedback in the same uplink subframe.
  • the UE separately sends downlink ACK feedback to the BRU.
  • the UE sends downlink ACK feedback to the BRU together.
  • the UE also sends downlink ACK feedback to the BRU.
  • the first available subframe is called the first uplink subframe.
  • subframe n+2 in FIG. 13 is the first uplink subframe.
  • subframe n+3 is the second uplink subframe
  • subframe n+4 is the third uplink subframe
  • subframe n+7 is the fourth uplink subframe
  • subframe n+8 is the first uplink subframe.
  • subframe n+9 is the sixth uplink subframe.
  • the DeNB schedules the downlink PDCCH or PDSCH for the UE on subframe n, according to the TDM uplink and downlink scheduling timing, it can be known that the BRU sends PUSCH to the DeNB at n+10 to relay the UE’s downlink ACK feedback, and the UE is in the subframe Frame n+4, that is, the third uplink subframe sends downlink ACK feedback to the BRU.
  • the value of k is the difference between (n+6) and (n+4), that is, k is 2.
  • k corresponding to the sixth uplink subframe is also 2, which will not be repeated here.
  • the DeNB schedules the downlink PDCCH or PDSCH for the UE in subframe n+1 and subframe n+2, according to the TDM uplink and downlink scheduling timing, it can be known that the UE sends downlink ACK to the BRU in subframe n+8 Feedback at this time, the value of k is the difference between (n+10) and (n+7), that is, k is 3, that is, the value of k corresponding to the first uplink subframe is 3. In the same way, it can be deduced that k corresponding to the fourth uplink subframe is also 3, which will not be repeated here.
  • the DeNB schedules downlink PDCCH or PDSCH for the UE on subframe n+3 and subframe n+4, and the BRU sends PUSCH to the DeNB at n+10 to relay the downlink ACK feedback of the UE.
  • the UE is on subframe n+8.
  • k corresponding to the fifth uplink subframe is also 2, which will not be repeated here.
  • TDM uplink and downlink subframe ratio 1 when n is 1, 2, 4, and 5, k is 2, that is, the first uplink subframe, the second uplink subframe, and the fourth uplink subframe Corresponding to the fifth uplink subframe, k is 2.
  • FIG. 14 is a schematic diagram of a TDM downlink scheduling sequence.
  • the DeNB continuously reads and schedules multiple downlink subframes.
  • the DeNB is the UE on subframe n+2, subframe n+3, subframe n+4, subframe n+5, and subframe n+6.
  • the DeNB schedules downlink PDCCH or PDSCH for the UE in subframe n+2 and subframe n+3, which is called the first downlink scheduling; DeNB schedules downlink PDCCH or PDSCH in subframe n+4, subframe n+5, and subframe
  • the scheduling of downlink PDCCH or PDSCH for the UE on frame n+6 is called second downlink scheduling.
  • the DeNB can send the UE’s current downlink scheduling management frame information to the BRU on subframe n+2, instructing the BRU to demodulate the PUCCH of the UE; for the second downlink scheduling, the DeNB can In subframe n+6, the current downlink scheduling management frame information of the UE can be sent to the BRU to instruct the BRU to demodulate the PUCCH of the UE.
  • the DeNB sends the downlink grant in subframe n+8; for the second downlink scheduling, the DeNB sends the downlink grant in subframe n+9.
  • the DeNB schedules downlink PDCCH or PDSCH for the UE in subframe n+2 and subframe n+3, that is, the first downlink scheduling
  • the UE sends ACK feedback to the BRU in subframe n+9
  • the BRU can send a PUSCH to the DeNB at n+11 to relay the downlink ACK feedback of the UE. Therefore, it can be known that the value of k can be the difference between (n+11) and (n+9), that is, k is 2, that is, the value of k corresponding to the first uplink subframe is 2.
  • k corresponding to the fourth uplink subframe is also 2, which will not be repeated here.
  • the DeNB schedules downlink PDCCH or PDSCH for the UE in subframe n+4, subframe n+5, and subframe n+6, that is, the second downlink scheduling, it can be known that the UE sends to the BRU in subframe n+12. ACK feedback, then, BRU can send PUSCH to DeNB at n+12 to relay UE's downlink ACK feedback. Therefore, it can be known that the value of k can be the difference between (n+12) and (n+10), that is, k is 2, that is, the value of k corresponding to the second uplink subframe is 2. In the same way, it can be deduced that k corresponding to the fifth uplink subframe is also 2, which will not be repeated here.
  • Fig. 15 is a schematic diagram of a TDM downlink scheduling sequence.
  • the DeNB continuously reads and schedules multiple downlink subframes.
  • the DeNB serves the UE in subframe n+2, subframe n+3, subframe n+4, subframe n+5, and subframe n+6.
  • the downlink PDCCH or PDSCH is scheduled, and at the same time, the DeNB can send the current downlink scheduling management frame information of the UE to the BRU in subframe n+6, and instruct the BRU to demodulate the PUCCH of the UE.
  • the DeNB sends a downlink grant in subframe n+9, and the UE sends an ACK feedback to the BRU in subframe n+10. Then, the BRU can send a PUSCH to the DeNB at n+12 to relay the UE's downlink ACK feedback. Therefore, it can be known that the value of k is the difference between (n+12) and (n+10), that is, k is 2, that is, the value of k corresponding to the first uplink subframe is 2. In the same way, it can be deduced that k corresponding to the fourth uplink subframe is also 2, which will not be repeated here.
  • TDM uplink and downlink subframe ratio 3 when n is 1, k is 3; when n is 2 and 3, k is 2, that is, the first uplink subframe corresponds to k is 3, and the second uplink The corresponding k of the subframe and the third uplink subframe is 2.
  • FIG. 16 is a schematic diagram of a TDM downlink scheduling sequence.
  • the DeNB continuously reads and schedules multiple downlink subframes. For example, the DeNB reads in subframe n, subframe n+1, subframe n+2, subframe n+3, subframe n+4, subframe n +5 scheduling downlink PDCCH or PDSCH for UE, called first downlink scheduling; DeNB scheduling downlink PDCCH or PDSCH for UE on subframe n+6 and subframe n+7, called second downlink scheduling; DeNB scheduling The downlink PDCCH or PDSCH scheduling for the UE on frame n+8 and subframe n+9 is called the third downlink scheduling.
  • the DeNB can send the UE’s current downlink scheduling management frame information to the BRU in subframe n+5; for the second downlink scheduling, the DeNB can send the UE to the BRU in subframe n+7 The current downlink scheduling management frame information is sent to the BRU; for the third downlink scheduling, the DeNB can send the current downlink scheduling management frame information of the UE to the BRU in subframe n+9.
  • the DeNB For the first downlink scheduling, the DeNB sends a downlink grant in subframe n+10, and the UE sends a downlink ACK feedback to the BRU on subframe n+11. Then, the BRU can send PUSCH to the DeNB at n+14 to relay UE's downlink ACK feedback. Therefore, it can be known that the value of k is the difference between (n+14) and (n+11), that is, k is 3, that is, the value of k corresponding to the first uplink subframe is 3.
  • the DeNB sends a downlink grant in subframe n+11, and the UE sends a downlink ACK feedback to the BRU on subframe n+12. Then, the BRU can send a PUSCH to the DeNB at n+14 to relay the UE.
  • the downlink ACK feedback can be known that the value of k can be the difference between (n+14) and (n+12), that is, k is 2, that is, the value of k corresponding to the second uplink subframe is 2.
  • the DeNB sends a downlink grant in subframe n+12, and the UE sends a downlink ACK feedback to the BRU on subframe n+13. Then, the BRU can send PUSCH to the DeNB at n+15 to relay the UE.
  • the downlink ACK feedback can be known that the value of k can be the difference between (n+15) and (n+13), that is, k is 2, that is, the value of k corresponding to the third uplink subframe is 2.
  • FIG. 17 is a schematic diagram of a TDM downlink scheduling sequence.
  • the DeNB continuously reads and schedules multiple downlink subframes. For example, the DeNB schedules downlink for the UE on subframe n, subframe n+1, subframe n+2, subframe n+3, and subframe n+4.
  • PDCCH or PDSCH is called first downlink scheduling; DeNB schedules downlink PDCCH or PDSCH for UE on subframe n+5, subframe n+6, subframe n+7, and subframe n+8, called second downlink Scheduling.
  • the DeNB can send the UE’s current downlink scheduling management frame information to the BRU in subframe n+4; for the second downlink scheduling, the DeNB can send the UE to the BRU in subframe n+8 The downlink scheduling management frame information is sent to the BRU this time.
  • the DeNB For the first downlink scheduling, the DeNB sends a downlink grant in subframe n+9, and the UE sends a downlink ACK feedback to the BRU on subframe n+11. Then, the BRU can send PUSCH to the DeNB at n+13 to relay UE's downlink ACK feedback. Therefore, it can be known that the value of k can be the difference between (n+13) and (n+11), that is, k is 2, that is, the value of k corresponding to the first uplink subframe is 2.
  • the DeNB sends a downlink grant in subframe n+10, and the UE sends a downlink ACK feedback to the BRU on subframe n+12. Then, the BRU can send PUSCH to the DeNB at n+14 to relay the UE.
  • the downlink ACK feedback can be known that the value of k can be the difference between (n+14) and (n+12), that is, k is 2, that is, the value of k corresponding to the second uplink subframe is 2.
  • FIG. 18, is a schematic diagram of a TDM downlink scheduling sequence.
  • the DeNB continuously reads and schedules multiple downlink subframes. For example, the DeNB reads in subframe n, subframe n+1, subframe n+2, subframe n+3, subframe n+4, subframe n +5.
  • the downlink PDCCH or PDSCH is scheduled for the UE in subframe n+6 and subframe n+7, and the DeNB can send the UE's current downlink scheduling management frame information to the BRU in subframe n+7.
  • the DeNB sends a downlink grant in subframe n+9, and the UE sends a downlink ACK feedback to the BRU in subframe n+11. Then, the BRU can send a PUSCH to the DeNB at n+13 to relay the UE's downlink ACK feedback. Therefore, it can be known that the value of k can be the difference between (n+13) and (n+11), that is, k is 2, that is, the value of k corresponding to the first uplink subframe is 2.
  • TDM uplink and downlink subframe ratio 6 when n is 1, k is 3; when n is 2, 3, 4, and 5, k is 2, that is, the first uplink subframe corresponds to k is 3.
  • the corresponding k of the second uplink subframe, the third uplink subframe, the fourth uplink subframe, and the fifth uplink subframe is 2.
  • FIG. 19 is a schematic diagram of a TDM downlink scheduling sequence.
  • the DeNB continuously reads and schedules multiple downlink subframes.
  • the DeNB schedules downlink PDCCH or PDSCH for the UE in subframe n+2, which is called the first downlink scheduling;
  • DeNB schedules multiple downlink subframes in subframe n+3.
  • Scheduling downlink PDCCH or PDSCH for UE on n+4 and subframe n+5 is called second downlink scheduling; DeNB scheduling downlink PDCCH or PDSCH for UE on subframe n+6 and subframe n+7, called third downlink Scheduling; DeNB schedules downlink PDCCH or PDSCH for UE on subframe n+8 and subframe n+9, called fourth downlink scheduling; DeNB schedules downlink PDCCH or PDSCH for UE on subframe n+10 and subframe n+11 , Called the fifth downlink scheduling.
  • the DeNB can send the UE’s current downlink scheduling management frame information to the BRU on subframe n+2; for the second downlink scheduling, the DeNB can send the UE on subframe n+5 This downlink scheduling management frame information is sent to the BRU; for the third downlink scheduling, the DeNB can send the UE’s current downlink scheduling management frame information to the BRU on subframe n+7; for the fourth downlink scheduling, the DeNB In subframe n+9, the UE’s current downlink scheduling management frame information can be sent to the BRU; for the fifth downlink scheduling, the DeNB can send the UE’s current downlink scheduling management frame information to the BRU in subframe n+11 .
  • the DeNB schedules downlink PDCCH or PDSCH for the UE in subframe n+2, and the UE sends downlink ACK feedback to the BRU in subframe n+9, then the BRU can send to the DeNB in n+11 PUSCH is used to relay the UE's downlink ACK feedback. Therefore, it can be known that the value of k is the difference between (n+11) and (n+9), that is, k is 2, that is, the value of k corresponding to the first uplink subframe is 2.
  • the UE sends a downlink ACK feedback to the BRU in subframe n+10, and the BRU may send a PUSCH to the DeNB at n+12 to relay the UE's downlink ACK feedback. Therefore, it can be known that the value of k is the difference between (n+12) and (n+10), that is, k is 2, that is, the value of k corresponding to the second uplink subframe is 2.
  • the UE sends downlink ACK feedback to the BRU in subframe n+10, and the BRU may send a PUSCH to the DeNB at n+12 to relay the UE's downlink ACK feedback. Therefore, it can be known that the value of k is the difference between (n+12) and (n+10), that is, k is 2, that is, the value of k corresponding to the third uplink subframe is 2.
  • the UE sends downlink ACK feedback to the BRU in subframe n+15, and the BRU may send a PUSCH to the DeNB at n+17 to relay the UE's downlink ACK feedback. Therefore, it can be known that the value of k is the difference between (n+17) and (n+15), that is, k is 2, that is, the value of k corresponding to the fourth uplink subframe is 3.
  • the UE sends a downlink ACK feedback to the BRU in subframe n+16, and the BRU may send a PUSCH to the DeNB at n+18 to relay the UE's downlink ACK feedback. Therefore, it can be known that the value of k is the difference between (n+18) and (n+16), that is, k is 2, that is, the value of k corresponding to the fifth uplink subframe is 2.
  • Table 3 takes HARQ offset of 0 and 1 as an example, where HARQ offset of 0 corresponds to subframe 2, subframe 3, and subframe 4, and HARQ offset of 0 corresponds to subframe 7, subframe 8, and subframe 9.
  • sa0 represents TDM uplink and downlink subframe ratio
  • sa1 represents TDM uplink and downlink subframe ratio 1
  • sa2 represents TDM uplink and downlink subframe ratio 2
  • sa3 represents TDM uplink and downlink subframe ratio 3.
  • sa4 represents TDM uplink and downlink subframe ratio 4
  • sa5 represents TDM uplink and downlink subframe ratio 5
  • sa6 represents TDM uplink and downlink subframe ratio 6.
  • Subframe 2 represents the first uplink subframe of the UE
  • subframe 3 represents the second uplink subframe of the UE
  • subframe 4 represents the third uplink subframe of the UE
  • subframe 7 represents the fourth uplink subframe of the UE.
  • subframe 8 represents the fifth uplink subframe of the UE
  • subframe 9 represents the sixth uplink subframe of the UE.
  • the embodiment of the present application can make the UE in each LTE frame. All downlink subframes can be scheduled, saving air interface resources.
  • the DeNE also does not need to continuously schedule the BRU to transmit the uplink PUSCH, thereby reducing the uplink air interface overhead.
  • the downlink subframes of the UE and BRU can be allocated according to TDD .
  • the configuration information includes the TDD uplink and downlink subframe ratio
  • the value of k may be different under different TDD uplink and downlink subframe ratios, including the following situations:
  • TDD uplink and downlink subframe ratio 1 when n is 1, 2, 4, or 5, k2 is 2, that is, the first uplink subframe, the second uplink subframe, and the fourth uplink subframe Corresponding to the fifth uplink subframe, k is 2.
  • FIG. 20 is a schematic diagram of a TDD downlink scheduling sequence.
  • the DeNB continuously reads and schedules multiple downlink subframes.
  • the DeNB schedules downlink PDCCH or PDSCH for the UE in subframe n+2 and subframe n+3, which is called the first downlink scheduling; Scheduling downlink PDCCH or PDSCH for UE on n+6 is called second downlink scheduling.
  • the DeNB can send the UE’s current downlink scheduling management frame information to the BRU in subframe n+3, instructing the BRU to demodulate the PUCCH of the UE; for the second downlink scheduling, the DeNB can In subframe n+6, the current downlink scheduling management frame information of the UE can be sent to the BRU to instruct the BRU to demodulate the PUCCH of the UE.
  • the DeNB sends the downlink grant in subframe n+8; for the second downlink scheduling, the DeNB sends the downlink grant in subframe n+9.
  • the DeNB schedules downlink PDCCH or PDSCH for the UE in subframe n+2 and subframe n+3, that is, during the first downlink scheduling, it can be known that the UE is in subframe n+ Send downlink ACK feedback to the BRU on 9th, then the BRU can send a PUSCH to the DeNB at n+11 to relay the downlink ACK feedback of the UE. Therefore, it can be known that the value of k is the difference between (n+11) and (n+9), that is, k is 2, that is, the value of k corresponding to the first uplink subframe is 2. In the same way, it can be deduced that k corresponding to the fourth uplink subframe is also 2, which will not be repeated here.
  • the DeNB schedules the downlink PDCCH or PDSCH for the UE in subframe n+6, that is, the second downlink scheduling
  • the UE sends downlink ACK feedback to the BRU in subframe n+12
  • the BRU can be in n+ 12 Send PUSCH to DeNB to relay UE's downlink ACK feedback. Therefore, it can be known that the value of k is the difference between (n+12) and (n+10), that is, k is 2, that is, the value of k corresponding to the second uplink subframe is 2.
  • k corresponding to the fifth uplink subframe is also 2, which will not be repeated here.
  • TDD uplink and downlink subframe ratio 2 when n is 1 or 2, k is 2, that is, k is 2 for the first uplink subframe and the second uplink subframe.
  • FIG. 21 is a schematic diagram of a TDD downlink scheduling sequence.
  • the DeNB continuously reads and schedules multiple downlink subframes. For example, the DeNB schedules downlink PDCCH or PDSCH for the UE on subframe n+2, subframe n+3, subframe n+4, and subframe n+6.
  • the DeNB may send the current downlink scheduling management frame information of the UE to the BRU in subframe n+6, and instruct the BRU to demodulate the PUCCH of the UE.
  • the DeNB sends a downlink grant in subframe n+9, and the UE sends a downlink ACK feedback to the BRU in subframe n+10.
  • the BRU can send a PUSCH to the DeNB at n+12 to relay the UE's downlink ACK feedback. Therefore, it can be known that the value of k is the difference between (n+12) and (n+10), that is, k is 2, that is, the value of k corresponding to the first uplink subframe is 2. In the same way, it can be deduced that k corresponding to the fourth uplink subframe is also 2, which will not be repeated here.
  • TDD uplink and downlink subframe ratio 3 when n is 1, k is 3, when n is 2 and 3, k is 2, that is, the first uplink subframe corresponds to k is 3, and the second uplink The corresponding k of the subframe and the third uplink subframe is 2.
  • FIG. 22 is a schematic diagram of a TDD downlink scheduling sequence.
  • the DeNB continuously reads and schedules multiple downlink subframes. For example, the DeNB schedules downlink PDCCH or PDSCH for the UE on subframe n, subframe n+4, and subframe n+5, which is called first downlink scheduling; DeNB schedules downlink PDCCH or PDSCH for UE in subframe n+6 and subframe n+7, which is called second downlink scheduling; DeNB schedules downlink PDCCH or PDSCH for UE in subframe n+8 and subframe n+9, which is called For the third downlink scheduling.
  • the DeNB can send the UE’s current downlink scheduling management frame information to the BRU in subframe n+5; for the second downlink scheduling, the DeNB can send the UE to the BRU in subframe n+7 The current downlink scheduling management frame information is sent to the BRU; for the third downlink scheduling, the DeNB can send the current downlink scheduling management frame information of the UE to the BRU in subframe n+9.
  • the DeNB For the first downlink scheduling, the DeNB sends a downlink grant in subframe n+10, and the UE sends a downlink ACK feedback to the BRU on subframe n+11. Then, the BRU can send PUSCH to the DeNB at n+14 to relay UE's downlink ACK feedback. Therefore, it can be known that the value of k is the difference between (n+14) and (n+11), that is, k is 3, that is, the value of k corresponding to the first uplink subframe is 3.
  • the DeNB sends a downlink grant in subframe n+11, and the UE sends a downlink ACK feedback to the BRU on subframe n+12. Then, the BRU can send a PUSCH to the DeNB at n+14 to relay the UE.
  • the downlink ACK feedback Therefore, it can be known that the value of k is the difference between (n+14) and (n+12), that is, k is 2, that is, the value of k corresponding to the second uplink subframe is 2.
  • the DeNB sends a downlink grant in subframe n+12, and the UE sends a downlink ACK feedback to the BRU on subframe n+13. Then, the BRU can send PUSCH to the DeNB at n+15 to relay the UE.
  • the downlink ACK feedback Therefore, it can be known that the value of k is the difference between (n+15) and (n+13), that is, k is 2, that is, the value of k corresponding to the third uplink subframe is 2.
  • TDD uplink and downlink subframe ratio 4 when n is 1 or 2, k is 2, that is, k is 2 for the first uplink subframe and the second uplink subframe.
  • FIG. 23 is a schematic diagram of a TDD downlink scheduling sequence.
  • the DeNB continuously reads and schedules multiple downlink subframes.
  • the DeNB schedules downlink PDCCH or PDSCH for the UE on subframe n, subframe n+3, and subframe n+4, which is called the first downlink scheduling;
  • the DeNB schedules downlink PDCCH or PDSCH for the UE in subframe n+5, subframe n+6, subframe n+7, and subframe n+8, which is called second downlink scheduling.
  • the DeNB can send the UE’s current downlink scheduling management frame information to the BRU in subframe n+4; for the second downlink scheduling, the DeNB can send the UE to the BRU in subframe n+8 The downlink scheduling management frame information is sent to the BRU this time.
  • the DeNB For the first downlink scheduling, the DeNB sends a downlink grant in subframe n+9, and the UE sends a downlink ACK feedback to the BRU on subframe n+11. Then, the BRU can send PUSCH to the DeNB at n+13 to relay UE's downlink ACK feedback. Therefore, it can be known that the value of k is the difference between (n+13) and (n+11), that is, k is 2, that is, the value of k corresponding to the first uplink subframe is 2.
  • the DeNB sends a downlink grant in subframe n+10, and the UE sends a downlink ACK feedback to the BRU on subframe n+12. Then, the BRU can send PUSCH to the DeNB at n+14 to relay the UE.
  • the downlink ACK feedback Therefore, it can be known that the value of k is the difference between (n+14) and (n+12), that is, k is 2, that is, the value of k corresponding to the second uplink subframe is 2.
  • FIG. 24 is a schematic diagram of a TDD downlink scheduling sequence.
  • the DeNB continuously reads and schedules multiple downlink subframes. For example, the DeNB reads in subframe n, subframe n+2, subframe n+3, subframe n+4, subframe n+5, and subframe n.
  • the downlink PDCCH or PDSCH is scheduled for the UE on +6 and subframe n+7, and the DeNB can send the UE’s current downlink scheduling management frame information to the BRU on subframe n+7.
  • the DeNB sends a downlink grant in subframe n+9, and the UE sends a downlink ACK feedback to the BRU in subframe n+11. Then, the BRU can send a PUSCH to the DeNB at n+13 to relay the UE's downlink ACK feedback. Therefore, it can be known that the value of k is the difference between (n+13) and (n+11), that is, k is 2, that is, the value of k corresponding to the first uplink subframe is 2.
  • the configuration information includes the TDD uplink and downlink subframe ratio
  • the corresponding relationship between the TDM uplink and downlink subframe ratio and the value of k is shown in Table 4 below.
  • Table 4 takes subframe n to subframe n+9, and n is equal to 0 as an example.
  • sa0 represents TDD uplink and downlink subframe ratio
  • sa1 represents TDD uplink and downlink subframe ratio 1
  • sa2 represents TDD uplink and downlink subframe ratio 2
  • sa3 represents TDD uplink and downlink subframe ratio 3.
  • sa4 represents TDD uplink and downlink subframe ratio 4
  • sa5 represents TDD uplink and downlink subframe ratio 5
  • sa6 represents TDD uplink and downlink subframe ratio 6.
  • Subframe 2 represents the first uplink subframe of the UE
  • subframe 3 represents the second uplink subframe of the UE
  • subframe 4 represents the third uplink subframe of the UE
  • subframe 7 represents the fourth uplink subframe of the UE.
  • subframe 8 represents the fifth uplink subframe of the UE
  • subframe 9 represents the sixth uplink subframe of the UE.
  • the base station has enough time to obtain the demodulation result of the PUSCH from the UE before scheduling HARQ; and the base station can save the uplink air interface as much as possible when scheduling the UE and BRU in downlink. Resource overhead.
  • Figure 25 is a schematic diagram of the random access process of the UE and the uplink and downlink scheduling process in the connected state. The specific process is described as follows:
  • the UE sends a random sequence Preamble to the RBU, so that the BRU sends the Preamble to the DeNB.
  • the UE sends a PRACH to the RBU, and the PRACH carries the Preamble.
  • the BRU demodulates the received PRACH and sends an uplink data channel to the DeNB.
  • the RBU and DeNB can determine whether the uplink channel transmitted by the UE is forwarded by the BRU according to the detection result of the Preamble, that is, whether the UE is a relay transmission user. If the DeNB determines that the uplink channel transmitted by the UE is forwarded by the BRU, the BRU can directly amplify the downlink channel signal, then the DeNB only receives the uplink data channel forwarded by the BRU, and does not perform other processing on the uplink data channel signal.
  • the DeNB sends MSG2 and MSG3 to the UE.
  • the DeNB can schedule MSG2 and MSG3 in any uplink subframe.
  • the UE sends an MSG3 or RRC link request to the BRU, so that the BRU sends an MSG3 or RRC link request to the DeNB.
  • the DeNB can instruct the UE to perform adaptive or non-adaptive retransmission at the retransmission time according to the FDD uplink synchronization HARQ scheduling timing.
  • the DeNB sends an MSG4 or RRC reconfiguration connection message to the UE, where the MSG4 or RRC reconfiguration connection message includes the aforementioned configuration information.
  • the configuration information can include the TDM uplink and downlink subframe ratio, and it can also include the TDD uplink and downlink subframe ratio, which can indicate the uplink and downlink subframe scheduling timing relationship for the UE to perform uplink and downlink transmission, that is, the DeNB schedules the UE and the BRU for uplink and downlink.
  • the transmitted uplink subframe can include the TDM uplink and downlink subframe ratio, and it can also include the TDD uplink and downlink subframe ratio, which can indicate the uplink and downlink subframe scheduling timing relationship for the UE to perform uplink and downlink transmission, that is, the DeNB schedules the UE and the BRU for uplink and downlink.
  • the transmitted uplink subframe can include the TDM uplink and downlink subframe ratio, and it can also include the TDD uplink and downlink subframe ratio, which can indicate the uplink and downlink subframe scheduling timing relationship for the UE to perform uplink and downlink transmission, that is, the DeNB schedules the UE and the BRU for up
  • the UE sends the first uplink channel to the BRU according to the configuration information, so that the BRU forwards the first uplink channel to the DeNB.
  • the first uplink channel may be PUSCH or PUCCH
  • the BRU may send a second uplink channel to the DeNB, and the second uplink channel carries the demodulation result of the first uplink channel.
  • the DeNB schedules the UE and the BRU according to the uplink and downlink scheduling timing indicated by the configuration information.
  • the subsequent process may include:
  • S256 The UE sends MSG5 or downlink ACK feedback to the BRU.
  • the DeNB sends downlink channels such as PDCCH, PDSCH, or PHICH to the UE, so that the UE receives on all FDD downlink subframes.
  • downlink channels such as PDCCH, PDSCH, or PHICH
  • the UE sends uplink channels such as PUCCH, PUSCH, or Sounding to the BRU according to the uplink subframe indicated by the configuration information, so that the BRU receives the uplink channels such as PUCCH, PUSCH, or Sounding.
  • uplink channels such as PUCCH, PUSCH, or Sounding.
  • the BRU demodulates and decodes the received uplink channels such as PUCCH, PUSCH, or Sounding, and sends the uplink channel to the DeNB in the uplink subframes that are not used by the UE indicated by the configuration information.
  • the uplink channel includes the received PUCCH, PUSCH Or the demodulation result of the uplink channel such as Sounding.
  • the configuration information can be used to instruct the terminal device to send the first uplink channel to the relay device on subframe n, and to schedule the relay device to send the second uplink channel to the network device on subframe n+k,
  • the configuration information can constrain the time difference between subframe n+K and subframe n+k to ensure that the network device receives and decodes correctly The second uplink channel sent by the relay device to the network device in the subframe n+k.
  • the method provided in the embodiments of the present application can enable the DeNB to have enough time to complete the demodulation and decoding of the relay PUSCH before sending the HARQ feedback, thereby avoiding possible conflicts of PUSCH synchronization HARQ.
  • the methods provided in the embodiments of the present application are introduced from the perspective of network equipment, terminal, and interaction between the network equipment and the terminal.
  • the network device and the terminal may include hardware structures and/or software modules, and the above functions are implemented in the form of hardware structures, software modules, or hardware structures plus software modules. Whether one of the above-mentioned functions is executed in a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraint conditions of the technical solution.
  • FIG. 26 shows a schematic structural diagram of a communication device 2600.
  • the communication device 2600 may be a network device, which can realize the function of the network device in the method provided in the embodiment of this application; the communication device 2600 may also be a device that can support the network device to realize the function of the network device in the method provided in the embodiment of this application .
  • the communication device 2600 may be a hardware structure, a software module, or a hardware structure plus a software module.
  • the communication device 2600 may be implemented by a chip system. In the embodiments of the present application, the chip system may be composed of chips, or may include chips and other discrete devices.
  • the communication device 2600 may include a processing module 2601 and a communication module 2602.
  • the processing module 2601 may be used to perform step S32 in the embodiment shown in FIG. 4, and/or used to support other processes of the technology described herein.
  • the communication module 2602 is used for the communication device 2600 to communicate with other modules, and it may be a circuit, a device, an interface, a bus, a software module, a transceiver, or any other device that can implement communication.
  • the communication module 2602 may be used to perform step S31 in the embodiment shown in FIG. 4, and/or used to support other processes of the technology described herein.
  • FIG. 27 shows a schematic structural diagram of a communication device 2700.
  • the communication device 2700 may be a terminal, which can realize the function of the terminal in the method provided in the embodiment of this application; the communication device 2700 may also be a device that can support the terminal to realize the function of the terminal in the method provided in the embodiment of this application.
  • the communication device 2700 may be a hardware structure, a software module, or a hardware structure plus a software module.
  • the communication device 2700 may be implemented by a chip system. In the embodiments of the present application, the chip system may be composed of chips, or may include chips and other discrete devices.
  • the communication device 2700 may include a processing module 2701 and a communication module 2702.
  • the processing module 2701 may be used to perform step S33 in the embodiment shown in FIG. 4, and/or used to support other processes of the technology described herein.
  • the communication module 2702 may be used to perform step S31 in the embodiment shown in FIG. 4, and/or used to support other processes of the technology described herein.
  • the communication module 2702 is used for the communication device 2700 to communicate with other modules, and it may be a circuit, a device, an interface, a bus, a software module, a transceiver, or any other device that can implement communication.
  • the division of modules in the embodiments of the present application is illustrative, and is only a logical function division. In actual implementation, there may be other division methods.
  • the functional modules in the various embodiments of the present application may be integrated into one process. In the device, it can also exist alone physically, or two or more modules can be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules.
  • FIG. 28 shows a communication device 2800 provided in an embodiment of this application, where the communication device 2800 may be a network device in the embodiment shown in FIG. 4, and can realize the function of the network device in the method provided in the embodiment of this application;
  • the communication device 2800 may also be a device that can support the network device to implement the function of the network device in the method provided in the embodiments of the present application.
  • the communication device 2800 may be a chip system.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the aforementioned communication module 2602 may be a transceiver, and the transceiver is integrated in the communication device 2800 to form a communication interface 2810.
  • the communication device 2800 includes at least one processor 2820, which is used to implement or support the communication device 2800 to implement the function of the network device in the method provided in the embodiment of the present application.
  • the processor 2820 may determine the scheduling indication information. For details, refer to the detailed description in the method example, which is not repeated here.
  • the communication device 2800 may also include at least one memory 2830 for storing program instructions and/or data.
  • the memory 2830 and the processor 2820 are coupled.
  • the coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units, or modules, and may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • the processor 2820 may cooperate with the memory 2830.
  • the processor 2820 may execute program instructions stored in the memory 2830. At least one of the at least one memory may be included in the processor.
  • the communication device 2800 may further include a communication interface 2810 for communicating with other devices through a transmission medium, so that the device used in the communication device 2800 can communicate with other devices.
  • the other device may be a terminal.
  • the processor 2820 can use the communication interface 2810 to send and receive data.
  • the communication interface 2810 may specifically be a transceiver.
  • the embodiment of the present application does not limit the specific connection medium between the communication interface 2810, the processor 2820, and the memory 2830.
  • the memory 2830, the processor 2820, and the communication interface 2810 are connected by a bus 2840.
  • the bus is represented by a thick line in FIG. 28.
  • the connection mode between other components is only for schematic illustration. , Is not limited.
  • the bus can be divided into address bus, data bus, control bus, etc. For ease of representation, only one thick line is used in FIG. 28, but it does not mean that there is only one bus or one type of bus.
  • the processor 2820 may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. Or execute the methods, steps, and logical block diagrams disclosed in the embodiments of the present application.
  • the general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • the memory 2830 may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or may also be a volatile memory (volatile memory), For example, random-access memory (RAM).
  • the memory is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.
  • the memory in the embodiments of the present application may also be a circuit or any other device capable of realizing a storage function, for storing program instructions and/or data.
  • Figure 29 shows a communication device 2900 provided by an embodiment of this application.
  • the communication device 2900 may be a terminal device, which can realize the function of the terminal device in the method provided by the embodiment of this application; the communication device 2900 may also be capable of supporting a terminal.
  • the communication device 2900 may be a chip system.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the aforementioned communication module 2702 may be a transceiver, and the transceiver is integrated in the communication device 2900 to form a communication interface 2910.
  • the communication device 2900 includes at least one processor 2920, configured to implement or support the communication device 2900 to implement the function of the terminal in the method provided in the embodiment of the present application.
  • the processor 2920 may perform transmission in one transmission unit or multiple transmission units according to the scheduling indication information. For details, refer to the detailed description in the method example, which is not repeated here.
  • the communication device 2900 may also include at least one memory 2930 for storing program instructions and/or data.
  • the memory 2930 and the processor 2920 are coupled.
  • the coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units, or modules, and may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • the processor 2920 may cooperate with the memory 2930 to operate.
  • the processor 2920 may execute program instructions stored in the memory 2930. At least one of the at least one memory may be included in the processor.
  • the communication device 2900 may further include a communication interface 2910 for communicating with other devices through a transmission medium, so that the device used in the device 2900 can communicate with other devices.
  • the other device may be a network device.
  • the processor 2920 can use the communication interface 2910 to send and receive data.
  • the communication interface 2910 may specifically be a transceiver.
  • the embodiment of the present application does not limit the specific connection medium between the communication interface 2910, the processor 2920, and the memory 2930.
  • the memory 2930, the processor 2920, and the communication interface 2910 are connected by a bus 2940.
  • the bus is represented by a thick line in FIG. 29.
  • the connection mode between other components is only for schematic illustration. , Is not limited.
  • the bus can be divided into address bus, data bus, control bus, etc. For ease of representation, only one thick line is used to represent in FIG. 29, but it does not mean that there is only one bus or one type of bus.
  • the processor 2920 may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. Or execute the methods, steps, and logical block diagrams disclosed in the embodiments of the present application.
  • the general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • the memory 2930 may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., and may also be a volatile memory (volatile memory). For example, random-access memory (RAM).
  • the memory is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.
  • the memory in the embodiments of the present application may also be a circuit or any other device capable of realizing a storage function, for storing program instructions and/or data.
  • the communication device in the embodiment of the present application is a network device.
  • the network device may be as shown in FIG. 30, and the network device may be applied to the system as shown in FIG. 1 to perform the functions of the network device in the foregoing method embodiment.
  • the network device 300 may include one or more radio frequency units, such as a remote radio unit (RRU) 3010 and one or more baseband units (BBU) (also referred to as digital units, digital units, DU). ) 3020.
  • RRU 3010 may be called a communication module, which corresponds to the communication module 2602 in FIG. 26.
  • the communication module may also be called a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 3011 ⁇ RF unit 3012.
  • the RRU 3010 part is mainly used for sending and receiving of radio frequency signals and conversion of radio frequency signals and baseband signals, for example, for sending instruction information to terminal equipment.
  • the 3020 part of the BBU is mainly used for baseband processing and control of the base station.
  • the RRU 3010 and the BBU 3020 may be physically set together, or may be physically separated, that is, a distributed base station.
  • the BBU 3020 is the control center of the base station, and may also be called a processing module, which may correspond to the processing module 2601 in FIG. 26, and is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, and spreading.
  • the BBU processing module
  • the BBU may be used to control the base station to execute the operation procedure of the network device in the foregoing method embodiment, for example, to generate the foregoing configuration information.
  • the BBU 3020 may be composed of one or more single boards, and multiple single boards may jointly support a radio access network with a single access standard (such as an LTE network), or support different access standards. Wireless access network (such as LTE network, 5G network or other networks).
  • the BBU 3020 also includes a memory 3021 and a processor 3022.
  • the memory 3021 is used to store necessary instructions and data.
  • the processor 3022 is used to control the base station to perform necessary actions, for example, used to control the base station to execute the operation procedure of the network device in the foregoing method embodiment.
  • the memory 3021 and the processor 3022 may serve one or more single boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.
  • the communication device in the embodiment of the present application is a terminal device.
  • the terminal device may be as shown in FIG. 31, which shows a simplified schematic diagram of the structure of the terminal device. It is easy to understand and easy to illustrate.
  • the terminal uses a mobile phone as an example.
  • the terminal equipment includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device.
  • the processor is mainly used to process the communication protocol and communication data, control the terminal, execute the software program, and process the data of the software program.
  • the memory is mainly used to store software programs and data.
  • the radio frequency circuit is mainly used for the conversion of baseband signal and radio frequency signal and the processing of radio frequency signal.
  • the antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users. It should be noted that some types of terminals may not have input and output devices.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.
  • FIG. 31 only one memory and processor are shown in FIG. 31. In actual end products, there may be one or more processors and one or more memories.
  • the memory may also be referred to as a storage medium or storage device.
  • the memory may be set independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.
  • the processor may include a baseband processor and/or 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. Execute the software program and process the data of the software program.
  • the processor in FIG. 31 can integrate the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit can also be independent processors and are interconnected by technologies such as buses.
  • the terminal device may include multiple baseband processors to adapt to different network standards, the terminal device may include multiple central processors to enhance its processing capabilities, and various components of the terminal may be connected through various buses.
  • the baseband processor can 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 can be built in the processor, or can be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.
  • the antenna and the control circuit with the transceiving function can be regarded as the transceiving unit of the terminal device, for example, to support the terminal device to perform the receiving function and the transmitting function as described in the part of FIG. 4.
  • the processor with processing functions is regarded as the processing unit of the terminal device.
  • the terminal equipment includes a transceiver unit and a processing unit.
  • the transceiver unit can also be called a transceiver, transceiver, transceiver, and so on.
  • the processing unit may also be called a processor, a processing board, a processing module, a processing device, and so on.
  • the device for implementing the receiving function in the transceiver unit can be regarded as the receiving unit, and the device for implementing the sending function in the transceiver unit can be regarded as the sending unit, that is, the transceiver unit includes the receiving unit and the sending unit.
  • the transceiver unit may sometimes be called a transceiver, a transceiver, or a transceiver circuit.
  • the receiving unit may sometimes be called a receiver, receiver, or receiving circuit.
  • the transmitting unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit.
  • transceiving unit is used to perform the sending and receiving operations on the terminal side in the foregoing method embodiment, and the processing unit is used to perform other operations on the terminal device in the foregoing method embodiment except for the transceiving operation.
  • the transceiver unit is used to perform the receiving operation on the terminal side in step S31 in the embodiment shown in FIG. 4, and/or the transceiver unit is also used to perform other terminal side operations in the embodiment of this application.
  • Send and receive steps The processing unit is configured to execute step S33 in the embodiment shown in FIG. 4, and/or the processing unit is also configured to execute other processing steps on the terminal side in the embodiment of the present application.
  • the processor may be used to execute instructions stored in the memory to control the transceiver unit to receive signals and/or send signals, and complete the functions of the terminal device in the foregoing method embodiments.
  • the function of the transceiver unit may be implemented by a transceiver circuit or a dedicated chip for transceiver.
  • the chip When the communication device is a chip, the chip includes a transceiver unit and a processing unit.
  • the transceiver unit may be an input/output circuit or a communication interface;
  • the processing unit is a processor or microprocessor or integrated circuit integrated on the chip.
  • the device shown in FIG. 32 can be referred to.
  • the device can perform functions similar to the processor 3020 in FIG. 30.
  • the device includes a processor 3210, a data sending processor 3220, and a data receiving processor 3330.
  • the processing module 2701 in the foregoing embodiment may be the processor 3210 in FIG. 32, and completes corresponding functions.
  • the transceiver module 2702 in the foregoing embodiment may be the sending data processor 3220 and/or the receiving data processor 3230 in FIG. 32.
  • the channel encoder and the channel decoder are shown in FIG. 32, it can be understood that these modules do not constitute a restrictive description of this embodiment, and are only illustrative.
  • Fig. 33 shows another form of this embodiment.
  • the processing device 3300 includes modules such as a modulation subsystem, a central processing subsystem, and a peripheral subsystem.
  • the communication device in this embodiment can be used as a modulation subsystem therein.
  • the modulation subsystem may include a processor 3303 and an interface 3304.
  • the processor 3303 completes the function of the aforementioned processing module 2701
  • the interface 3304 completes the function of the aforementioned communication module 2702.
  • the modulation subsystem includes a memory 3306, a processor 3303, and a program stored in the memory 3306 and running on the processor. When the processor 3303 executes the program, the terminal side of the above method embodiment is implemented. method.
  • the memory 3306 can be non-volatile or volatile, and its location can be located inside the modulation subsystem or in the processing device 3300, as long as the memory 3406 can be connected to the The processor 3303 is fine.
  • the communication device 2800 includes means for determining configuration information and means for sending configuration information.
  • the functions of the means for generating configuration information and the means for sending scheduling indication information may be realized by one or more processors.
  • the configuration information may be generated by one or more processors, and the scheduling instruction information may be sent through a transceiver, or an input/output circuit, or an interface of a chip.
  • the configuration information refer to the related description in the above method embodiment.
  • the communication device 2800 includes a means for receiving configuration information and a means for transmitting data according to the configuration information.
  • the configuration information and how to schedule the terminal device and the relay device to transmit data in uplink and downlink according to the configuration information refer to the related description in the above method embodiment.
  • the configuration information may be received through a transceiver, or an input/output circuit, or an interface of a chip, and one or more processors may schedule the terminal device and the relay device to transmit data in uplink and downlink according to the configuration information.
  • the processor 2801 may implement other functions in addition to implementing the method of the embodiment shown in FIG. 4.
  • the communication device 2800 may also include a circuit, and the circuit may implement the function of the network device or terminal in the foregoing method embodiment.
  • the communication device 2800 may include one or more memories, on which instructions are stored, the instructions may be executed on the processor, so that the communication device 2800 performs the foregoing method implementation The method described in the example.
  • data may also be stored in the memory.
  • the optional processor may also store instructions and/or data.
  • the one or more memories may store the corresponding relationship described in the foregoing embodiment, or related parameters or tables involved in the foregoing embodiment.
  • the processor and memory can be provided separately or integrated together.
  • the communication device 2800 may further include a transceiver unit 3012 and an antenna 3011.
  • the processor 3022 may be called a processing unit, and controls a communication device (terminal or base station).
  • the transceiver unit 3012 may be called a transceiver, a transceiver circuit, or a transceiver, etc., and is used to implement the transceiver function of the communication device through the antenna 3011.
  • the present application also provides a communication system, which includes the aforementioned one or more network devices, and, one or more terminals, and a relay device.
  • the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the aforementioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC application specific integrated circuit
  • FPGA ready-made programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • ESDRAM enhanced synchronous dynamic random access memory
  • Synchlink DRAM SLDRAM
  • DR RAM Direct Rambus RAM
  • the embodiment of the present application also provides a computer-readable medium on which a computer program is stored, and when the computer program is executed by a computer, the communication method described in any of the foregoing method embodiments is implemented.
  • the embodiments of the present application also provide a computer program product, which, when executed by a computer, implements the communication method described in any of the foregoing method embodiments.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a high-density digital video disc (Digital Video Disc, DVD)), or a semiconductor medium (for example, a solid state disk (Solid State Disk, SSD)) etc.
  • An embodiment of the present application also provides a processing device, including a processor and an interface; the processor is configured to execute the communication method described in any of the foregoing method embodiments.
  • the foregoing processing device may be a chip, and the processor may be implemented by hardware or software.
  • the processor When implemented by hardware, the processor may be a logic circuit, an integrated circuit, etc.; when implemented by software, At this time, the processor may be a general-purpose processor, which is implemented by reading the software code stored in the memory, and the memory may be integrated in the processor, may be located outside the processor, and exist independently.
  • one embodiment or “an embodiment” mentioned throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present application. Therefore, the appearance of "in one embodiment” or “in an embodiment” in various places throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that, in the various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, rather than corresponding to the embodiments of the present application. The implementation process constitutes any limitation.
  • system and “network” in this article are often used interchangeably in this article.
  • the term “and/or” in this article is only an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, exist alone B these three situations.
  • the character "/" in this text generally indicates that the associated objects before and after are in an "or” relationship.
  • B corresponding to A means that B is associated with A, and B can be determined according to A.
  • determining B according to A does not mean that B is determined only according to A, and B can also be determined according to A and/or other information.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, the division of units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or integrated. To another system, or some features can be ignored, or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may also be electrical, mechanical or other forms of connection.
  • the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments of the present application.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
  • Computer readable media include computer storage media and communication media, where communication media includes any media that facilitates the transfer of computer programs from one place to another.
  • the storage medium may be any available medium that can be accessed by a computer.
  • computer readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage media or other magnetic storage devices, or can be used to carry or store instructions or data structures
  • Any connection can suitably become a computer-readable medium.
  • the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave
  • coaxial cable , Fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless and microwave are included in the fixing of the media.
  • Disk and disc include compact discs (CD), laser discs, optical discs, digital versatile discs (DVD), floppy discs and Blu-ray discs. Disks usually copy data magnetically, while discs The laser is used to optically copy data. The above combination should also be included in the protection scope of the computer-readable medium.

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Abstract

本申请提供一种通信方法及装置，该方法包括：网络设备向终端设备发送配置信息，配置信息用于指示终端设备向中继设备发送第一上行信道的上行子帧，以及中继设备向网络设备发送第二上行信道的上行子帧；网络设备根据配信息，调度终端设备在子帧n1上向中继设备发送第一上行信道，并调度中继设备在子帧n1+k1上向网络设备发送第二上行信道；其中，子帧n1+K为网络设备向终端设备发送HARQ反馈所在的子帧，n1为正整数，k1和K均为大于1的整数，子帧n1+K与子帧n1+k1之间的时间差值能够保证网络设备正确接收且解码中继设备在子帧n1+k1上向网络设备发送的第二上行信道，以避免PUSCH同步HARQ可能发生的冲突。

Description

一种通信方法及装置 技术领域
本申请涉及移动通信技术领域，尤其涉及一种通信方法及装置。
背景技术
在长期演进(long term evolution，LTE)系统中，为了提升基站的覆盖范围，引入了中继(relay)传输技术，称为中继通信系统。在中继通信系统中，网络设备与终端设备之间传输的信号通过中继设备进行转发，以提高系统的稳定性和吞吐率。中继通信系统的架构可以如图1所示，包括节点1(网络设备)、节点2(中继设备)、节点3(终端设备)。在中继通信系统中，终端设备可以直接连接或者通过至少一个中继设备连接网络设备，形成一条无线连接，从而使终端设备可以基于该无线连接成功接入网络，最终实现业务通信。在图1中，无线连接(标记为L1)称为下行传输链路、无线连接(标记为L2)和无线连接(标记为L3)可以认为是上行传输链路，其中，为了区分，无线连接(L2)称为上行接入链路，无线连接(为L3)称为上行回传中继链路。
LTE系统定义了频分双工(frequency division duplexing，FDD)和时分双工(time division duplexing，TDD)两种不同的双工方式。当中继通信系统工作在FDD同频模式下，由于上行接入链路和上行回传中继链路工作在相同的频段，对于中继设备来说，为避免产生收发干扰，要求中继设备在接收来自终端设备的数据的同时，不会向网络设备发送上行数据。
目前，网络设备通过时分方式调度中继设备和终端设备，共享上行空口资源，以避免中继设备产生收发相互干扰。但是，受LTE系统上行资源分配方式及物理上行共享信道(Physical Uplink Shared Channel，PUSCH)同步HARQ(Hybrid Automatic Repeat Request，混合自动重传请求)时序的约束，在中继传输系统中，如何解决上行中继链路的调度时序冲突是目前亟需解决的问题。
发明内容
本申请提供一种通信方法及装置，用于提供一种上行中继链路的调度时序，以避免PUSCH同步HARQ可能发生的冲突。
第一方面，本申请实施例提供一种通信方法，该方法应用于包括中继设备的通信系统，该方法包括：网络设备向终端设备发送配置信息，该配置信息可以用于指示所述终端设备向中继设备发送第一上行信道的上行子帧，以及所述中继设备向所述网络设备发送第二上行信道的上行子帧，从而网络设备可以根据该配信息，调度终端设备在子帧n1上向中继设备发送第一上行信道，并调度中继设备在子帧n1+k1上向网络设备发送第二上行信道。
该方法可由第一通信装置执行，第一通信装置可以是通信设备或能够支持通信设备实现该方法所需的功能的通信装置，例如芯片系统。示例性地，所述通信设备为网络设备。
在本申请实施例中，子帧n1+K为网络设备向终端设备发送HARQ反馈所在的子帧，n1为正整数，k1和K均为大于1的整数，子帧n1+K与子帧n1+k1之间的时间差值能够保证网络设备正确接收且解码中继设备在子帧n1+k1上向网络设备发送的第二上行信道。 可见，在中继通信系统中，通过本申请实施例提供的方法，能够使得DeNB在发送HARQ反馈之前，有足够时间完成中继PUSCH的解调译码，从而避免PUSCH同步HARQ可能发生的冲突。
在一种可能的设计中，所述K与所述k1之间的差值大于或等于2。
在该方案中，可以限定K与k1之间的差值，从而能够保证DeNB在发送HARQ反馈之前，有足够时间完成中继PUSCH的解调译码。
在一种可能的设计中，网络设备向终端设备发送配置信息，包括：
网络设备向终端设备发送MSG4，其中，MSG4携带配置信息；或者，
网络设备向终端设备发送无线资源控制RRC连接重配消息，其中，RRC连接重配消息携带配置信息；或者，
网络设备向终端设备发送系统消息，其中，系统消息携带配置信息。
在该方案中，网络设备可以有多种方式将配置信息通知给终端设备，例如，可以通过向终端设备发送MSG4、RRC连接重配消息或系统消息将配置信息通知给终端设备，较为灵活。
在一种可能的设计中，所述配置信息包括时分复用TDM上下行子帧配比，其中：
在所述TDM上下行子帧配比0中，n1为1或4时，k1为3或4；n1为2或5对应k1为2或3；n1为3或6时，k1为2；
在所述TDM上下行子帧配比1中，n1为1或4时，k1为2、3或4；n1为2或5时，k1为2或3；
在所述TDM上下行子帧配比2中，n1为1或4时，k1为2、3或4；
在所述TDM上下行子帧配比3中，n1为1时，k1为3或4；n1为2和3时，k1为2、3或4；
在所述TDM上下行子帧配比4中，n1为1或2时，k1为2、3或4；
在所述TDM上下行子帧配比5中，n1为1时，k1为2、3或4；
在所述TDM上下行子帧配比6中，n1为1时，k1为3或4；n1为2或5时，k1为2或3；n1为3时，k1为2；n1为4时，k1为2、3或4。
实现方式一，配置信息可以包括TDM上下行子帧配比，以告知终端设备和中继设备采用TDM方式进行上下行传输，可以兼容现有的LTE系统，易于实现。
针对不同的TDM上下行子帧配比，可以规定不同的调度时序，即规定网络设备调度终端设备在什么时域位置进行上行传输，以及网络设备调度中继设备在什么位置进行上行中继传输，从而，终端设备和中继设备可以根据配置信息包括的TDM上下行子帧配比对应的调度时序进行上行信道中继过程，以避免PUSCH同步HARQ可能发生的冲突。
在一种可能的设计中，所述配置信息包括时分双工TDD上下行子帧配比，其中：
在所述TDD上下行子帧配比1中，n1为1或4时，k1为2；n1为2或5时，k1为2或3；
在所述TDD上下行子帧配比2中，n1为1或4时，k1为2、3或4；
在所述TDD上下行子帧配比3中，n1为1时，k1为3或4；n1为2和3时，k1为2、3或4；
在所述TDD上下行子帧配比4中，n1为1或2时，k1为2、3或4；
在所述TDD上下行子帧配比5中，n1为1时，k1为2、3或4。
实现方式二，配置信息可以包括TDD上下行子帧配比，以告知终端设备和中继设备采用TDM方式进行上下行传输，可以兼容现有的LTE系统，易于实现。针对不同的TDD上下行子帧配比，也可以规定不同的调度时序，从而，终端设备和中继设备可以根据配置信息包括的TDD上下行子帧配比对应的调度时序进行上行信道中继过程，以避免PUSCH同步HARQ可能发生的冲突。
在一种可能的设计中，所述方法还包括：
所述网络设备根据所述配置信息，调度所述终端设备在子帧n2上向所述中继设备发送下行应答响应ACK反馈，并调度所述中继设备在子帧n2+k2上向所述网络设备发送第三上行信道。
在该方案中，配置信息还可以指示终端设备在子帧n2上向中继设备发送下行应答响应ACK反馈，中继设备在子帧n2+k2上向网络设备发送第三上行信道，以保证终端设备和中继设备根据配置信息进行上行信道中继过程时，提高下行子帧的利用率。
在一种可能的设计中，所述配置信息包括TDM上下行子帧配比，其中：
在所述TDM上下行子帧配比0中，n2为1或4时，k2为3，n2为2、3、5和6时，k2为2；
在所述TDM上下行子帧配比1中，n2为1、2、4和5时，k2为2；
在所述TDM上下行子帧配比2中，n2为1或4时，k2为2；
在所述TDM上下行子帧配比3中，n2为1时，k2为3；n2为2和3时，k2为2；
在所述TDM上下行子帧配比4中，n2为1或2时，k2为2；
在所述TDM上下行子帧配比5中，n2为1时，k2为2；
在所述TDM上下行子帧配比6中，n2为1时，k2为3；n2为2、3、4和5时，k2为2。
实现方式一，针对不同的TDM上下行子帧配比，可以规定不同的调度时序，即规定网络设备调度终端设备在什么时域位置进行下行传输及相应下行ACK反馈，以及网络设备调度中继设备在什么位置进行中继传输，从而，保证终端设备和中继设备根据配置信息进行上行信道中继过程时，所有的下行子帧都可以被利用，提高资源利用率。
在一种可能的设计中，所述配置信息包括TDD上下行子帧配比，其中：
在所述TDD上下行子帧配比1中，n2为1、2、4和5时，k2为2；
在所述TDD上下行子帧配比2中，n2为1或2时，k2为2；
在所述TDD上下行子帧配比3中，n2为1时，k2为3，n2为2和3时，k2为2；
在所述TDD上下行子帧配比4中，n2为1或2时，k2为2；
在所述TDD上下行子帧配比5中，n2为1时，k2为2。
实现方式二，针对不同的TDD上下行子帧配比，同样规定不同的调度时序，从而，保证终端设备和中继设备根据配置信息进行上行信道中继过程时，所有的下行子帧都可以被利用，提高资源利用率。
第二方面，本申请实施例提供一种通信方法，应用于包括中继设备的通信系统，该方法包括：
终端设备接收来自网络设备的配置信息，所述配置信息用于指示所述终端设备向中继设备发送第一上行信道的上行子帧，以及中继设备向所述网络设备发送第二上行信道的上行子帧；
所述终端设备根据所述配置信息在子帧n1上向所述中继设备发送所述第一上行信道；
其中，所述中继设备在子帧n1+k1上向所述网络设备发送所述第二上行信道，所述子帧n1+K为所述网络设备向所述终端设备发送自动混合重传请求HARQ反馈所在的子帧，所述n1为正整数，所述k1和K均为大于1的整数，所述子帧n1+K与所述子帧n1+k1之间的时间差值能够保证所述网络设备正确接收且解码所述中继设备在子帧n1+k1上向所述网络设备发送的所述第二上行信道。
该方法可由第二通信装置执行，第二通信装置可以是终端或能够支持终端实现该方法所需的功能的通信装置，当然还可以是其他通信装置，例如芯片系统。这里以第二通信装置是终端为例。
在一种可能的设计中，所述K与所述k1之间的差值大于或等于2。
在一种可能的设计中，终端设备接收来自网络设备的配置信息，包括：
所述终端设备接收来自所述网络设备的消息MSG4，其中，所述MSG4携带所述配置信息；或者，
所述终端设备接收来自所述网络设备RRC连接重配消息，其中，所述RRC连接重配消息携带所述配置信息；或者，
所述终端设备接收来自所述网络设备系统消息，其中，所述系统消息携带所述配置信息。
在一种可能的设计中，所述配置信息包括时分复用TDM上下行子帧配比，其中：
在所述TDM上下行子帧配比0中，n1为1或4时，k1为3或4；n1为2或5对应k1为2或3；n1为3或6时，k1为2；
在所述TDM上下行子帧配比1中，n1为1或4时，k1为2、3或4；n1为2或5时，k1为2或3；
在所述TDM上下行子帧配比2中，n1为1或4时，k1为2、3或4；
在所述TDM上下行子帧配比3中，n1为1时，k1为3或4；n1为2和3时，k1为2、3或4；
在所述TDM上下行子帧配比4中，n1为1或2时，k1为2、3或4；
在所述TDM上下行子帧配比5中，n1为1时，k1为2、3或4；
在所述TDM上下行子帧配比6中，n1为1时，k1为3或4；n1为2或5时，k1为2或3；n1为3时，k1为2；n1为4时，k1为2、3或4。
在一种可能的设计中，所述配置信息包括时分双工TDD上下行子帧配比，其中：
在所述TDD上下行子帧配比1中，n1为1或4时，k1为2；n1为2或5时，k1为2或3；
在所述TDD上下行子帧配比2中，n1为1或4时，k1为2、3或4；
在所述TDD上下行子帧配比3中，n1为1时，k1为3或4；n1为2和3时，k1为2、3或4；
在所述TDD上下行子帧配比4中，n1为1或2时，k1为2、3或4；
在所述TDD上下行子帧配比5中，n1为1时，k1为2、3或4。
在一种可能的设计中，还包括：
所述终端设备根据所述配置信息在子帧n2上向所述中继设备发送下行应答响应ACK反馈，其中，所述中继设备在子帧n2+k2上向所述网络设备发送第三上行信道。
在一种可能的设计中，所述配置信息包括TDM上下行子帧配比，其中：
在所述TDM上下行子帧配比0中，n2为1或4时，k2为3，n2为2、3、5和6时，k2为2；
在所述TDM上下行子帧配比1中，n2为1、2、4和5时，k2为2；
在所述TDM上下行子帧配比2中，n2为1或4时，k2为2；
在所述TDM上下行子帧配比3中，n2为1时，k2为3；n2为2和3时，k2为2；
在所述TDM上下行子帧配比4中，n2为1或2时，k2为2；
在所述TDM上下行子帧配比5中，n2为1时，k2为2；
在所述TDM上下行子帧配比6中，n2为1时，k2为3；n2为2、3、4和5时，k2为2。
在一种可能的设计中，所述配置信息包括TDD上下行子帧配比，其中：
在所述TDD上下行子帧配比1中，n2为1、2、4和5时，k2为2；
在所述TDD上下行子帧配比2中，n2为1或2时，k2为2；
在所述TDD上下行子帧配比3中，n2为1时，k2为3，n2为2和3时，k2为2；
在所述TDD上下行子帧配比4中，n2为1或2时，k2为2；
在所述TDD上下行子帧配比5中，n2为1时，k2为2。
关于第二方面或第二方面的各种可能的实施方式所带来的技术效果，可以参考对第一方面或第一方面的各种可能的实施方式的技术效果的介绍。
第三方面，本申请提供一种通信装置，该装置可以是终端设备或网络设备，还可以是芯片。该装置具有实现上述第一方面或者第二方面中任意一个方面的各实施例的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
第四方面，提供了一通信种装置，包括：处理器和存储器；该存储器用于存储计算机执行指令，当该装置运行时，该处理器执行该存储器存储的该计算机执行指令，以使该装置执行如上述第一方面或第一方面中任一所述的通信方法、或者以使该装置执行如上述第二方面或第二方面中任一所述的通信方法。
第五方面，本申请还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述各方面所述的方法。
第六方面，本申请还提供一种包括指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述各方面所述的方法。
第七方面，本申请还提供一种系统，该系统包括上述第一方面中的网络设备，和上述第二方面中的终端设备，以及中继设备。
本申请的这些方面或其他方面在以下实施例的描述中会更加简明易懂。
附图说明
图1为本申请实施例适用的一种通信系统的架构示意图；
图2为现有技术中的一种上行调度时序示意图；
图3为现有技术中的一种下行调度时序示意图；
图4为本申请实施例提供的通信方法的流程示意图；
图5A-图5E分别为本申请实施例提供的一种上行调度时序示意图；
图6A-图6E分别为本申请实施例提供的一种上行调度时序示意图；
图7为本申请实施例提供的一种上行调度时序示意图；
图8A-图8C分别为本申请实施例提供的一种上行调度时序示意图；
图9A-图9B分别为本申请实施例提供的一种上行调度时序示意图；
图10为本申请实施例提供的一种上行调度时序示意图；
图11A-图11E分别为本申请实施例提供的一种上行调度时序示意图；
图12A-图12B分别为本申请实施例提供的一种上行调度时序示意图；
图13为本申请实施例提供的一种下行调度时序示意图；
图14为本申请实施例提供的一种下行调度时序示意图；
图15为本申请实施例提供的一种下行调度时序示意图；
图16为本申请实施例提供的一种下行调度时序示意图；
图17为本申请实施例提供的一种下行调度时序示意图；
图18为本申请实施例提供的一种下行调度时序示意图；
图19为本申请实施例提供的一种下行调度时序示意图；
图20为本申请实施例提供的一种下行调度时序示意图；
图21为本申请实施例提供的一种下行调度时序示意图；
图22为本申请实施例提供的一种下行调度时序示意图；
图23为本申请实施例提供的一种下行调度时序示意图；
图24为本申请实施例提供的一种下行调度时序示意图；
图25为本申请实施例提供的上下行调度过程的示意图；
图26为本申请实施例提供的一种通信装置的一种结构示意图；
图27为本申请实施例提供的另一通信装置的一种结构示意图；
图28为本申请实施例提供的一种通信装置的一种结构示意图；
图29为本申请实施例提供的另一通信装置的另一种结构示意图；
图30为本申请实施例提供的一种通信装置的一种示意性框图；
图31为本申请实施例提供的另一种通信装置的一种结构示意图；
图32为本申请实施例提供的另一种通信装置的另一种结构示意图；
图33为本申请实施例提供的另一种通信装置的再一种结构示意图。
具体实施方式
为了使本申请实施例的目的、技术方案和优点更加清楚，下面将结合说明书附图以及具体的实施方式对本申请实施例中的技术方案进行详细的说明。
以下，对本申请实施例中的部分用语进行解释说明，以便于本领域技术人员理解。
(1)终端设备，包括向用户提供语音和/或数据连通性的设备，例如可以包括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处理设备。该终端设备可以经无线接入网(radio access network，RAN)与核心网进行通信，与RAN交换语音和/或数据。该终端设备可以包括用户设备(user equipment，UE)、无线终端设备、移动终端设备、设备到设备通信(device-to-device，D2D)终端设备、V2X终端设备、机器到机器/机器类通信(machine-to-machine/machine-type communications，M2M/MTC)终端设备、物联网(internet of things，IoT)终端设备、订户单元(subscriber unit)、订户站(subscriber station)，移动 站(mobile station)、远程站(remote station)、接入点(access point，AP)、远程终端(remote terminal)、接入终端(access terminal)、用户终端(user terminal)、用户代理(user agent)、或用户装备(user device)等。例如，可以包括移动电话(或称为“蜂窝”电话)，具有移动终端设备的计算机，便携式、袖珍式、手持式、计算机内置的移动装置等。例如，个人通信业务(personal communication service，PCS)电话、无绳电话、会话发起协议(session initiation protocol，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。还包括受限设备，例如功耗较低的设备，或存储能力有限的设备，或计算能力有限的设备等。例如包括条码、射频识别(radio frequency identification，RFID)、传感器、全球定位系统(global positioning system，GPS)、激光扫描器等信息传感设备。
作为示例而非限定，在本申请实施例中，该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备或智能穿戴式设备等，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能头盔、智能首饰等。
而如上介绍的各种终端设备，如果位于车辆上(例如放置在车辆内或安装在车辆内)，都可以认为是车载终端设备，车载终端设备例如也称为车载单元(on-board unit，OBU)。本申请实施例中，终端设备还可以包括中继(relay)。或者理解为，能够与基站进行数据通信的都可以看作终端设备。在下文中以终端设备是UE为例。
(2)网络设备是网络侧中一种用于发射或接收信号的实体，如新一代基站(generation Node B，gNodeB)。网络设备可以是用于与移动设备通信的设备。网络设备可以是无线局域网(wireless local area networks，WLAN)中的AP，全球移动通信系统(global system for mobile communication，GSM)或码分多址(code division multiple access，CDMA)中的基站(base transceiver station，BTS)，也可以是宽带码分多址(wideband code division multiple access，WCDMA)中的基站(NodeB，NB)，还可以是LTE中的演进型基站(evolutional Node B，eNB或eNodeB)，演进的LTE系统(LTE-Advanced，LTE-A)中的演进型基站(NodeB或Evolved Node B或evolutional Node B)，或者宿主基站(Donor eNodeB，DeNB)，即服务于中继网络的基站，或者中继站或接入点等。该网络设备还可协调对空中接口的属性管理。本申请实施例并不限定。此外，在其它可能的情况下，网络设备可以是其它为终端设备提供无线通信功能的装置。本申请的实施例对网络设备所采用的具体技术和具体设备形态不做限定。为方便描述，本申请实施例中，为终端设备提供无线通信功能的装置称为网络设备。在下文的描述中，以网络设备是DeNB为例。
(3)中继(Relay Nodes，RN)设备可以是普通的基站(如Node B或eNB)、NR controller、5G系统中的gNB、Centralized Unit、未来移动通信系统中的基站、新无线基站、射频拉远模块、微基站、Distributed Unit、无线保真(WIreless-Fidelity，WiFi)系统中的接入节点等，接收点(transmission reception point，TRP)或传输点(transmission point，TP)或者桥接无线单元(Bridge Radio Unit，BRU)任何其它无线接入设备，本申请实施例不限于此。 在下文的描述中，以中继设备是BRU为例。
(4)在LTE系统中，帧结构需要满足以下要求:
1)物理上行共享信道(Physical Uplink Shared Channel，PUSCH)与物理混合自动重传指示信道(Physical HARQ Indication Channel，PHICH)，即UE在子帧(subframe)n发送PUSCH，相应地会在subframe n+k接收PHICH，其中k是上行数据的确认(Acknowledgement，ACK)反馈/非确认(Nonacknowledgement,NACK)反馈间隔，其中，在LTE FDD R8中，k等于4。该PUSCH的内容至少包括UE发送的上行数据，该PHICH的内容是对subframe n所发送PUSCH中数据的ACK/NACK反馈。
2)上行(Uplink，UL)HARQ PUSCH重传周期，即UE在subframe n上首次传输上行数据块时，如果需要重传该数据块时，则只能在subframe n+k*L进行，其中k是重传周期，L是重传次数，取值为1，2，3，...Lmax，Lmax是系统配置的最大重传次数，在LTE FDD R8中，k等于8。
3)PHICH/上行授权(UL grant)和PUSCH(n+4)，即UE在subframe n接收发送该UE的PHICH/UL grant，则该UE会根据该PHICH/UL grant的指示在subframe n+k调整PUSCH，其中，k是PHICH/UL grant指示与UL数据信道发送之间的间隔，在LTE FDD R8中，k等于4；该调整是指当PHICH中的内容是ACK时，则在subframe n+4上的PUSCH发送新数据；当PHICH中的内容是NACK时，则在subframe n+4上的PUSCH对之前发送的数据进行重传；或根据ULgrant的指示在subframe n+4相应的上行资源上发送数据。
4)物理下行共享信道(Physical Downlink Shared Channel，PDSCH)和UL ACK/NACK，即UE在subframe n接收发送给该UE的PDSCH，在subframe n+k反馈UL ACK/NACK，其中，k是下行数据的ACK/NACK反馈间隔，在LTE FDD R8中，k等于4。
5)HARQ进程，一个HARQ进程是指基站调度进行一次数据传输，再到终端设备发送ACK/NACK反馈。在一个HARQ进程中，一次传输发出后，需要等待RTT才能决定下次传输是传输新数据，还是进行旧数据的重传。在这段时间内，基站或者终端不能停止传输而白白等待，必须发起其他的并行HARQ进程，以充分利用时域资源。其中，HARQ的进程数量跟RTT，与终端设备或基站的处理时间相关，RTT越大，需要支持的并行HARQ进程数量越多以填满RTT，HARQ进程的数量约等于RTT。例如，对于FDD系统而言，每个子帧都可以进行上行数据和下行数据的发送，上行数据和下行数据之间用过频率分隔开。考虑到物理层的处理时延，如果基站(或者终端设备)通过某个HARQ进程在第n个子帧发送了一个数据帧，基站(或者终端设备)在第n+4个子帧才能发送该HARQ进程的确认信息，那么基站(或者终端设备)通过该HARQ进程在第n+8个子帧才能继续发送下一个数据帧，即HARQ RTT时间为8ms。
(6)本申请实施例中的术语“系统”和“网络”可被互换使用。“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A,B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a,b,或c中的至少一项(个)，可以表示：a,b,c,a-b,a-c,b-c,或a-b-c，其中a,b,c可以是单个，也可以是多个。
以及，除非有相反的说明，本申请实施例提及“第一”、“第二”等序数词是用于对多 个对象进行区分，不用于限定多个对象的顺序、时序、优先级或者重要程度。
为了更好地理解本申请实施例提供的技术方案，下面先介绍本申请实施例的技术背景。
如图1所示的中继通信系统工作在FDD模式时，对于上行传输而言，上行接入链路L2和上行回传中继链路L3工作在相同的频段，对于BRU来说，在接收来自UE的数据时，可能还会向基站发送数据，这就会对BRU造成收发干扰。为了避免BRU的收发干扰，目前规定BRU和UE可以采用时分的方式共享上行空口资源。
对于上行调度而言，如图2所示，为目前上行调度时序的一种结构示意图，即按照最小传输时延，BRU和UE交替使用上行空口资源。基站按照图2所示的时序调度UE和BRU的流程包括如下步骤：
21)、基站为BRU在子帧n-7上分配上行授权，用于BRU传输当前上行数据或者用于BRU传输当前时刻之后的上行数据；
22)、UE在子帧n-6上向中继设发送上行调度请求；
23)、BRU接收来自UE的上行调度请求，并在子帧n-3上向基站发送PUSCH，该PUSCH承载UE发送的上行调度请求；由于子帧n-5紧接着子帧n-6，如果BRU的处理时间较长，在一个子帧的时间内可能无法获得上行调度请求的解调结果，为了给予BRU留有更长的处理时间，所以BRU可以在子帧n-5之后的子帧上向基站发送PUSCH。最近的子帧是子帧n-4，但是子帧n-4为UE可用，因此，BRU在子帧n-3发送PUSCH，以尽量缩短传输时延；
24)、基站为UE分配上行授权，其中，基站可以在子帧n-3之后的子帧上为UE分配上行授权。但是子帧n-2时，基站可能还没解调完来自BRU的PUSCH，所以，基站在子帧n上为UE分配上行授权；
25)、基站在最近的子帧n+1上将对UE进行调度的上行调度管理帧信息发送给BRU，以指示BRU解调UE的PUSCH；
26)、基站在子帧n+3为BRU分配上行授权，用于BRU传输UE发送的PUSCH；
27)、UE在子帧n+4上发送与步骤24)对应的PUSCH；
28)、BRU在子帧n+7上向基站发送步骤26)对应的PUSCH，该PUSCH承载UE在步骤27)发送的PUSCH的解调结果，该解调结果例如可以包括循环冗余校验(Cyclic Redundancy Check，CRC)、上行控制信息UCI结果及TB数据块内容等；与步骤23)类似，这里BRU在子帧n+7上向基站发送PUSCH，也是为了使得BRU在发送PUSCH之前，可以有更多的时间解调步骤27)中的PUSCH。
上述基站调度UE和BRU进行上行传输的过程中，只要步骤24)、步骤25)和步骤27)中有一个步骤出错，可以认为UE传输PUSCH失败，从而需要重新传输PUSCH；或者，只要步骤26)或步骤28)失败，且BRU没有缓存UE此次传输PUSCH的解调译码结果，也可以认为UE传输PUSCH失败，从而需要重新传输PUSCH。当需要UE重新传输PUSCH，基站向UE发送HARQ反馈，以指示UE重新传输PUSCH。
目前协议规定FDD上行同步HARQ RTT固定为8个子帧，即从UE发送PUSCH初传授权到基站向UE发送HARQ反馈的时间间隔为8个子帧。那么基站需要在子帧n+8上向UE发送HARQ反馈。假设基站及BRU都只需要1ms(即1个子帧的长度)即可完成PUSCH的解调译码及HARQ调度过程，那么从步骤24)基站在子帧n上为UE分配上行授权开始，到基站完成BRU在子帧n+7发送的PUSCH的接收、解调译码及在子帧n+8上的HARQ 调度，总共需要至少9个完整子帧，即子帧n到子帧n+8。
然而，如果BRU或基站在1ms内不能完成PUSCH的解调译码，即BRU在子帧n+7上向基站转发UE发送的PUSCH，基站在子帧n+8上无法获取BRU对UE发送的PUSCH的解调结果。这种情况下，若按照当前的协议时序来实现，即基站在子帧n+8上强行调度HARQ，如果该HARQ指示UE在该HARQ通道上新传，则重传的HARQ合并增益丢失；如果该HARQ指示UE在该HARQ重传，则可能出现初传正确导致本次HARQ重传是不必要的，那么就浪费了资源。或者，基站在子帧n+8指示UE挂起HARQ，这样就扩大了HARQ RTT，造成较长的传输时延。
对于下行调度而言，如图3所示，为目前下行调度时序的一种结构示意图，即按照最小传输时延，BRU和UE交替使用上行空口资源。基站按照图3所示的时序调度UE和BRU的流程包括如下步骤：
31)、基站在子帧n-8上为UE调度物理下行控制信道(Physical Downlink Control Channel，PDCCH)或PDSCH；
32)、基站在子帧n-7上将对UE进行调度的下行调度管理帧信息发送给BRU，指示BRU解调UE的PUCCH；
33)、基站在子帧n-5上为BRU分配上行授权，用于BRU传输UE发送的PUCCH；
34)、UE在子帧n-5发送步骤31)对应的下行ACK反馈；
35)、BRU发送步骤33)对应的PUSCH，该PUSCH承载UE在步骤34)发送的PUCCH的解调结果。
由于BRU和UE交替使用空口上行子帧，且，在FDD系统中，下行调度子帧与下行ACK反馈之间固定为4个子帧，例如，步骤31)中的下行调度子帧为子帧n-8，下行ACK反馈所在子帧为子帧n-4，这样使得UE无法在每个下行子帧都可以得到调度，如图3所示，UE在一个调度周期(10个子帧)内，有多个下行子帧不可用，浪费了空口资源。同时，对于UE的连续多个下行调度子帧的下行ACK反馈，基站需要相应的连续调度BRU传输上行PUSCH，增加了上行空口开销；否则BRU需要缓存UE的下行ACK反馈，以便一次反馈UE的连续多个下行ACK反馈。
在LTE中继通信系统中，为了兼容当前协议规定的传输机制，且保证基站在调度针对被中继设备转发的UE的上行HARQ之前，有足够的时间获得来自UE的PUSCH的解调结果；以及基站在对UE和BRU进行下行调度时，提高上行空口资源的利用率，本申请实施例基于图1所示的中继通信系统，提供一种通信方法。在本申请实施例所提供的通信方法中，基站可以通过配置信息指示UE和BRU进行上行传输的子帧，即配置信息约束了HARQ时序，从而满足LTE FDD系统的各种约束。
下面结合附图介绍本申请实施例提供的技术方案，在下面的介绍过程中，以将本申请提供的技术方案应用在图1所示的网络架构为例。另外，该方法可由三个通信装置执行，这三个通信装置例如为第一通信装置、第二通信装置和第三通信装置。其中，第一通信装置可以是网络设备或能够支持网络设备实现该方法所需的功能的通信装置，或者第一通信装置可以是终端设备或能够支持终端设备实现该方法所需的功能的通信装置，或者第一通信装置可以是中继设备或能够支持中继设备实现该方法所需的功能的通信装置，当然还可以是其他通信装置，例如芯片系统。第二通信装置可以是网络设备或能够支持网络设备实现该方法所需的功能的通信装置，或者第二通信装置可以是终端设备或能够支持终端设备 实现该方法所需的功能的通信装置，或者第二通信装置可以是中继设备或能够支持中继设备实现该方法所需的功能的通信装置，当然还可以是其他通信装置，例如芯片系统。第三通信装置可以是网络设备或能够支持网络设备实现该方法所需的功能的通信装置，或者第三通信装置可以是终端设备或能够支持终端设备实现该方法所需的功能的通信装置，或者第三通信装置可以是中继设备或能够支持中继设备实现该方法所需的功能的通信装置，当然还可以是其他通信装置，例如芯片系统。且对于第一通信装置、第二通信装置和第三通信装置的实现方式均不做限制，例如第一通信装置可以是网络设备，第二通信装置是终端设备，第三通信装置是中继设备；或者第一通信装置是网络设备，第二通信装置是能够支持终端设备实现该方法所需的功能的通信装置，第三通信装置是中继设备；或者第一通信装置是能够支持网络设备实现该方法所需的功能的通信装置，第二通信装置是能够支持终端设备实现该方法所需的功能的通信装置，第三通信装置是能够支持中继设备实现该方法所需的功能的通信装置等等。其中，网络设备例如为基站。
为了便于介绍，在下文中，以该方法由网络设备和终端设备执行为例，也就是，以第一通信装置是网络设备、第二通信装置是终端设备为例。如果将本实施例应用在图3所示的网络架构，则下文中所述的网络设备可以是图1所示的网络架构中的网络设备(DeNB)，下文中所述的终端设备可以是图1所示的网络架构中的终端设备(UE)，下文中所述的中继设备可以是图1所示的网络架构中的中继设备(BRU)。
请参考图4，为本申请一实施例提供的一种通信方法，该方法的流程描述如下。
S41、DeNB向UE发送配置信息，从而，UE接收该配置信息，其中，该配置信息用于指示UE向BRU发送第一上行信道的上行子帧，以及BRU向DeNB发送第二上行信道的上行子帧。
S42、DeNB根据配置信息，调度UE在子帧n1上向BRU发送第一上行信道，并调度BRU在子帧n1+k1向DeNB发送第二上行信道。
S43、UE根据配置信息进行上行传输。
在本申请实施例中，DeNB在对UE和BRU进行上下行调度之前，可以确定UE和BRU可用的上行空口资源和下行空口资源，以使得在上行调度过程中，DeNB向UE发送HARQ反馈所在的子帧，与BRU向DeNB发送第二上行信道所在的子帧之间的间隔至少为1个子帧，以保证DeNB在发送HARQ反馈之前，有足够的时间正确接收且解码第二上行信道。
具体的，为了保证DeNB向UE发送HARQ反馈所在的子帧，与BRU向DeNB发送第二上行信道所在的子帧之间的间隔至少为1个子帧，DeNB可以确定配置信息，该配置信息可以用于指示UE向BRU发送第一上行信道的上行子帧，以及BRU向DeNB发送第二上行信道的上行子帧，例如，UE在子帧n1上向BRU发送第一上行信道，BRU在子帧n1+k1向DeNB发送第二上行信道。其中，n1为正整数。
由于UE和BRU工作在FDD同频模式下，所以，k1可以等于1或者大于1，以保证UE和BRU分时利用同频资源，从而避免了BRU的收发干扰。
DeNB确定了配置信息之后，将该配置信息发送给UE，以使得UE根据该配置信息进行上行传输。
在本申请实施例中，DeNB将配置信息发送给UE的方式包括但不限于以下三种方式：
第一种方式，配置信息可以承载在MSG4中，DeNB向UE发送该MSG4，以告知UE。
这种方式适用于UE随机接入某个小区。例如，DeNB调度UE向BRU发送随机接入 信道(ran1dom access chan1n1el，RACH)，该RACH可以承载随机序列(Preamble)，从而，BRU将接收的Preamble转发给DeNB，例如，BRU向DeNB发送PUSCH，该PUSCH承载有Preamble。之后，DeNB根据对Preamble的检测结果，确定UE的上行传输信道是经过BRU传输的，DeNB向UE发送随机接入响应。UE接收来自DeNB的随机接入响应，UE向BRU发送MSG2及MSG3，从而，BRU将接收的MSG2及MSG3发送给DeNB。
配置信息承载在MSG4消息中，DeNB向UE发送MSG4，以指示UE，DeNB调度UE和BRU进行上行传输的上下行子帧，或者，也可以认为是指示UE，DeNB调度UE和BRU的上下行子帧调度时序关系。
第二种方式，配置信息可以承载在无线资源控制(Radio Resource Control，RRC)连接重配消息，DeNB向UE发送该RRC连接重配消息。
在一些实施例中，配置信息可以承载在RRC连接重配消息，这样，UE在RRC连接重配之后，可以按照配置信息指示的上下行子帧调度时序关系来进行上下行调度。
第三种方式，配置信息可以承载在系统消息，DeNB向UE发送该系统消息，以告知UE。
在一些实施例中，配置信息可以承载在系统消息，例如，承载在系统消息块(SIB System Information Block，SIB)1中，或者，其他可能的系统消息。
通常来说，如果UE在子帧n1向BRU发送第一上行信道，例如，PUCCH、PUSCH或者是物理随机接入信道(Physical Random Access Channel，PRACH)等。BRU在子帧n1+k1向DeNB发送第二上行信道，其中，第二上行信道包括对第一上行信道的解调结果。之后，DeNB接收并解调第二上行信道，之后，DeNB还可以向UE发送HARQ反馈，以指示UE重传或者新传第一上行信道。例如，DeNB在子帧n1+K向UE发送HARQ反馈。
本申请实施例为了保证DeNB在发送HARQ反馈之前，有足够的时间正确接收且解码第二上行信道，那么就需要保证子帧n1+K与子帧n1+k1之间的时间差值能够使得DeNB正确接收且解码第二上行信道。所以，在本申请实施例中，K与k1之间的差值大于或等于2，即DeNB在发送HARQ反馈所在的子帧，与BRU向DeNB发送第二上行信道的子帧之间至少间隔1个子帧。
基于此，本申请实施例可以上下行调度时序，从而确定指示上下行调度时序的配置信息。在可能的实施方式中，配置信息可以包括TDM上下行子帧配比，也可以包括TDD上下行子帧配比，即在本申请实施例中，DeNB通过告知UE，TDM上下行子帧配比或TDD上下行子帧配比来实现告知UE，上下行调度时序。
示例性的，配置信息可以包括TDM上下行子帧配比0、TDM上下行子帧配比1、TDM上下行子帧配比2、TDM上下行子帧配比3、TDM上下行子帧配比4、TDM上下行子帧配比5或TDM上下行子帧配比6；或者，配置信息可以包括TDD上下行子帧配比0、TDD上下行子帧配比1、TDD上下行子帧配比2、TDD上下行子帧配比3、TDD上下行子帧配比4、TDD上下行子帧配比5或TDD上下行子帧配比6。
不同的TDM上下行子帧配比或者不同的TDD上行子帧配比，对应的上下行调度的时序也所有不同，下面分别从上行调度和下行调度这两个过程来说明，在下文的介绍中，以第一上行信道是PUSCH，第二上行信道也是PUSCH为例。
例如，对于上行调度而言，UE和BRU仍然采用FDD模式占用上行空口资源进行上行传输。本申请实施例可以确定DeNB调度UE在子帧n1上向BRU发送PUSCH，以及 DeNB调度BRU在子帧n1+k1上向DeNB进行中继链路传输。
对于下行调度而言，当DeNB对UE作下行调度时，DeNB根据配置信息可以调度UE在子帧n2上向BRU发送下行应答响应ACK反馈，并调度BRU在子帧n2+k2上向DeNB发送第三上行信道。例如，DeNB在子帧n2上为UE调度下行PDCCH或PDSCH，BRU在子帧n2+k2上向DeNB发送PUSCH，该PUSCH承载对PDCCH或PDSCH的解调结果。其中，n1和n2只是为了区别上行调度和下行调度，并不具有指代意义。为了便于描述，下文中，对于n1和n2统称为n，k1和k2统称为k。
下面分别从上行调度和下行调度介绍不同的TDM上下行子帧配比或者不同的TDD上行子帧配比下，上下行调度时序，可能包括以下几种情况：
第一种情况：对于上行调度而言，当配置信息包括TDM上下行子帧配比，不同的TDM上下行子帧配比下，k的取值也可能不同，包括以下几种情况：
(1)在TDM上下行子帧配比0中，n为1或4时，k为3或4；n为2或5时，k为2或3；n为3或6时，k1为2。
需要说明的是，这里n为1表示第一个上行子帧，依次类推，n为2表示第二个上行子帧，n为3表示第三个上行子帧，n为4表示第四个上行子帧，n为5表示第五个上行子帧，n为6表示第六个上行子帧。下文中，同样适用。
记一个LTE帧内，UE可用的上行子帧中，第一个可用的子帧称为第一个上行子帧，以此类推，第二个可用的子帧称为第二个上行子帧，等等。例如，在TDM方式中，HARQ偏移量offset为0时，以从0编号作为起始，那么第一帧包括子帧0到子帧9，其中，子帧2为第一个上行子帧，子帧3为第二个上行子帧，子帧4为第三个上行子帧，子帧7为第四个上行子帧，子帧8为第五个上行子帧，子帧9为第六个上行子帧；又例如，如果HARQ偏移量offset为2时，那么一个帧包括子帧2到子帧11，即包括第一帧的子帧2到子帧9，以及下一个帧(第二帧)的子帧0和子帧1。此时，子帧4为第一个上行子帧，子帧5为第二个上行子帧，子帧6为第三个上行子帧，子帧9为第四个上行子帧，第二帧内的子帧0为第五个上行子帧，第二帧内的子帧1为第六个上行子帧。下文中的介绍中，以HARQ offset是0为例。
在本申请实施例中，在TDM上下行子帧配比0中，第一个上行子帧和第四个上行子帧对应k的取值为3或4，第二个上行子帧和第五个上行子帧对应k的取值为2或3，第三个上行子帧和第六个上行子帧对应k的取值为2。
示例性的，请参见图5A，为一种TDM上行调度时序示意图。需要说明的是，下文中，针对上行调度时序图，线条1和线条6表示DeNB为UE分配上行调度，线条2表示DeNB将UE的上行调度管理帧信息发送给BRU，线条3表示DeNB为BRU分配上行授权，线条4和线条8为UE向BRU发送PUSCH，线条5和线条9为BRU向DeNB发送PUSCH，线条7表示DeNB向UE发送HARQ反馈。且子帧n为一个帧内的第一个子帧，n+9为这个帧内的最后一个子帧。下文的描述均以两个帧的时序为例，其中，子帧n到子帧n+9为一个帧，子帧n+10到子帧n+19为下一个帧。n的编号可以是0，下文中以n的编号是0为例，即从子帧0作为起点。
在图5A中，DeNB在子帧n上为UE分配上行授权，DeNB在子帧n上可以将UE本次上行调度管理帧信息发送给BRU，指示BRU解调UE的PUSCH。DeNB可以在子帧n+2或子帧n+3上为BRU分配上行授权，用于BRU传输UE发送的PUSCH。其中，图5A以 DeNB在子帧n+3上为BRU分配上行授权为例。根据TDM上下行调度时序的规定，BRU在接收到上行授权间隔4个子帧向DeNB发送PUSCH，所以，如果DeNB在子帧n+3上为BRU分配上行授权，那么，BRU在子帧n+7上向DeNB发送PUSCH。且，根据TDM上下行调度时序的规定DeNB可以在子帧n+10上向UE发送HARQ反馈，以指示UE重新发送PUSCH。
从图5A中可以看出，UE可以在子帧n+4、子帧n+5或子帧n+6上向BRU发送PUSCH。子帧n+4是UE的第一个上行子帧，以此类推，子帧n+5是UE的第二个上行子帧，子帧n+6是UE的第三个上行子帧。
例如，UE可以在第一个上行子帧发送PUSCH，即UE在子帧n+4上发送PUSCH，BRU在子帧n+7上向DeNB发送PUSCH，而DeNB在子帧n+10上向UE发送HARQ反馈，即子帧n+10和子帧n+7之间间隔2个子帧，所以能够保证DeNB在发送HARQ反馈之前，有足够的时间完成中继PUSCH的解调译码以获取UE发送PUSCH的CRC结果并完成上行调度。此时，k等于(n+7)与(n+4)差值即为3，即第一个上行子帧对应k的值为3。
如果不建议传输时延，BRU也可以在子帧n+8上向DeNB发送PUSCH，如图5B所示。图5B与图5A不同之处在于，DeNB在子帧n+2为BRU分配上行授权，以遵循TDM上下行调度时序。这种情况下，同理可以推导出，k等于(n+8)与(n+4)差值即为4，即第一个上行子帧对应k的值为4。所以，第一个上行子帧对应k的值为3或4。
从图5A和图5B中，可以看出，DeNB发送HARQ反馈所在的子帧与DeNB接收BRU发送的PUSCH所在的子帧之间的时间间隔至少为2个子帧，即预留更多的时间用于DeNB解调BRU发送的PUSCH及相应的上行调度过程，相较于现有技术，即BRU在子帧n+7发送PUSCH，DeNB在子帧n+8发送HARQ反馈来说，本申请实施例可以使得DeNB在发送HARQ反馈之前，有足够时间完成中继PUSCH的解调译码以获取UE发送PUSCH的CRC结果并完成上行调度，从而避免重传的HARQ合并增益丢失，同时，也减小了DeNB在子帧n+8挂起HARQ的可能性，即减小了HARQ RTT，缩小传输时延。
如果DeNB在子帧n+10上向UE发送HARQ反馈，那么DeNB还可以在子帧n+10上为UE分配上行授权，用于指示该HARQ的新传或者重传。按照TDM上下行调度时序的指示，UE在子帧n+14上对该HARQ作新传或者自适应重传或者非自适应重传。其中，子帧n+14可以认为是UE的第四个上行子帧。之后，调度过程与子帧n+4到子帧n+10的调度过程相同，例如，BRU可以在子帧n+16、子帧n+17或者子帧n+18向DeNB发送PUSCH，所以，第四个上行子帧对应k的值也为3或者4，这里不再赘述。
又例如，如图5C所示，UE可以在第二个上行子帧发送PUSCH，即UE在子帧n+4上发送PUSCH。BRU可以在子帧n+6发送PUSCH，对应地，DeNB在子帧n+2上向BRU发送上行分配。这种情况下，k等于(n+6)与(n+4)差值即为2，即第二个上行子帧对应k的值为2。如果DeNB在子帧n+10上向UE发送HARQ反馈，DeNB还可以在子帧n+10上为UE分配上行授权，UE在子帧n+14(第五个上行子帧)发送PUSCH，即第五个上行子帧对应k的值也为2。
或者，BRU在子帧n+7发送PUSHC，如图5D所示。此时，DeNB在子帧n+3上向BRU发送上行分配。这种情况下，k等于(n+7)与(n+4)差值即为3，即第二个上行子帧对应k的值也可以为3。同理，第五个上行子帧对应k的值也为3。
再例如，如图5E所示，UE在第三个上行子帧发送PUSCH，即UE在子帧n+4上发送PUSCH。BRU可以在子帧n+6发送PUSCH，对应地，DeNB在子帧n+2上向BRU发送上行分配。这种情况下，k等于(n+6)与(n+4)差值即为2，即第三个上行子帧对应k的值为2。这种情况下，如果DeNB在子帧n+10上向UE发送HARQ反馈，DeNB也可以在子帧n+10上为UE分配上行授权，UE在子帧n+14(第六个上行子帧)发送PUSCH，即第六个上行子帧对应的k等于2。
(2)在TDM上下行子帧配比1中，n为1或4时，k为2、3或4；n为2或5时，k为2或3，即第一个上行子帧和第四个上行子帧对应k的取值为2、3或4，第二个上行子帧和第五个上行子帧对应的k的取值为2或3。
示例性的，请参见图6A，为一种TDM上行调度时序示意图。与图5A的不同之处在于，图6A所示的TDM上下行子帧配比与图5A所示的TDM上下行子帧配比不同。
在图6A中，当DeNB在子帧n为UE分配上行调度，根据TDM上下行调度时序，可知DeNB在子帧n+10上向UE发送HARQ反馈。为了保证DeNB在发送HARQ反馈之前，有足够的时间完成中继PUSCH的解调译码以获取UE发送PUSCH的CRC结果并完成上行调度，BRU可以在子帧n+6、n+7或n+8上向DeNB发送PUSCH。
图6A以BRU可以在子帧n+6上向DeNB发送PUSCH为例，对应的，DeNB在子帧n+2为BRU分配上行授权，以遵循TDM上下行调度时序。UE可以在子帧n+4上向BRU发送PUSCH。此时，k等于(n+6)与(n+4)差值即为2，即第一个上行子帧对应k的值为2。
如图6B所示，BRU在子帧n+7上向DeNB发送PUSCH，DeNB在子帧n+3为BRU分配上行授权此时，k等于(n+7)与(n+4)差值即为3，即第一个上行子帧对应k的值可以为3。
如图6C所示，BRU在子帧n+8上向DeNB发送PUSCH，DeNB在子帧n+4为BRU分配上行授权，此时，k等于(n+8)与(n+4)差值即为4，即第一个上行子帧对应k的值可以为4。
如果DeNB在子帧n+10上向UE发送HARQ反馈，DeNB还可以在子帧n+10上为UE分配上行授权，用于指示该HARQ的新传或者重传。之后，UE在子帧n+14上对该HARQ作新传或者自适应重传或者非自适应重传。其中，子帧n+14对应的可以认为是UE的第四个上行子帧。之后，调度过程与子帧n+4到子帧n+10的调度过程相同，例如，BRU可以在子帧n+16、子帧n+17或者子帧n+18向DeNB发送PUSCH，后续过程不再赘述。
又例如，如图6D所示，UE在第二个上行子帧发送PUSCH，即UE在子帧n+4上发送PUSCH，DeNB在子帧n+2为BRU分配上行授权，BRU在子帧n+6发送PUSHC，DeNB在子帧n+10上向UE发送HARQ反馈，此时，k等于(n+6)与(n+4)差值即为2，即第二个上行子帧对应k的值为2。如果DeNB在子帧n+10上向UE发送HARQ反馈，DeNB也可以在子帧n+10上为UE分配上行授权，可以推导出第五个上行子帧对应k的值也为2。
或者，如图6E所示，UE在第二个上行子帧发送PUSCH，即UE在子帧n+4上发送PUSCH，DeNB在子帧n+3为BRU分配上行授权，BRU在子帧n+7发送PUSHC，DeNB在子帧n+10上向UE发送HARQ反馈，此时，k等于(n+7)与(n+4)差值即为3，即第二个上行子帧对应k的值为3。如果DeNB在子帧n+10上向UE发送HARQ反馈，DeNB也可以在子帧n+10上为UE分配上行授权，可以推导出第五个上行子帧对应k的值也为3。
从图6A-图6E中，可以看出，DeNB发送HARQ反馈与DeNB接收BRU发送的PUSCH之间的时间间隔至少为1个子帧，即预留更多的时间用于DeNB解调BRU发送的PUSCH，可以使得DeNB在发送HARQ反馈之前，有足够时间完成中继PUSCH的解调译码以获取UE发送PUSCH的CRC结果并完成上行调度。
(3)在TDM上下行子帧配比2中，n为1或4时，k为2、3或4，即第一个上行子帧和第四个上行子帧对应k的取值为2、3或4。
示例性的，请参见图7，为一种TDM上行调度时序示意图。
例如，根据TDM上下行调度时序的规定，DeNB在子帧n为UE分配上行授权，DeNB在子帧n+10上向UE发送HARQ反馈。如果UE在第一个上行子帧发送PUSCH，即UE在子帧n+4上发送PUSCH，BRU可以在子帧n+6上向DeNB发送PUSCH(如图7细实线5所示)，那么对应的，DeNB在子帧n+2为BRU分配上行授权(如图7细实线3所示)，此时k为(n+6)与(n+4)的差值，即2。
或者，BRU可以在子帧n+7上向DeNB发送PUSCH(如图7粗实线5所示)，那么对应的，DeNB在子帧n+3为BRU分配上行授权(如图7粗实线3所示)，此时k为(n+7)与(n+4)的差值，即3；
又或者，BRU可以在子帧n+8上向DeNB发送PUSCH(如图7细虚线5所示)，那么对应的，DeNB在子帧n+4为BRU分配上行授权(如图7细虚线3所示)，此时k为(n+8)与(n+4)的差值，即4。
如果DeNB在子帧n+10上向UE发送HARQ反馈，那么DeNB可以在子帧n+10上为UE分配上行授权，用于指示该HARQ的新传或者重传。之后，UE在子帧n+14上对该HARQ作新传或者自适应重传或者非自适应重传。其中，子帧n+14对应的可以认为是UE的第四个上行子帧。之后，调度过程与子帧n+4到子帧n+10的调度过程相同，例如，BRU可以在子帧n+16、子帧n+17或者子帧n+18向DeNB发送PUSCH，后续过程不再赘述。
从图7中可以看出，DeNB发送HARQ反馈与DeNB接收BRU发送的PUSCH之间的时间间隔至少为1个子帧，即预留更多的时间用于DeNB解调BRU发送的PUSCH，可以使得DeNB在发送HARQ反馈之前，有足够时间完成中继PUSCH的解调译码以获取UE发送PUSCH的CRC结果并完成上行调度。
(4)在TDM上下行子帧配比3中，n为1时，k为3或4；n为2或3时，k为2、3或4，即第一个上行子帧对应k为3或4，第二个上行子帧和第三个上行子帧对应k为2、3或4：
示例性的，请参见图8A，为一种TDM上行调度时序示意图。
例如，根据TDM上下行调度时序的规定，DeNB在子帧n为UE分配上行授权，DeNB在子帧n+10上向UE发送HARQ反馈。
如果UE在第一个上行子帧发送PUSCH，即UE在子帧n+4上发送PUSCH，BRU可以在子帧n+7上向DeNB发送PUSCH(如图8A细实线5所示)，那么对应的，DeNB在子帧n+3为BRU分配上行授权(如图8A细实线3所示)，此时k为(n+7)与(n+4)的差值，即3。
或者，BRU在子帧n+8上向DeNB发送PUSCH，(如图8A粗实线5所示)，那么对应的，DeNB在子帧n+4为BRU分配上行授权(如图8A粗实线3所示)，此时k为(n+8)与(n+4)的差值，即4。所以，第一个上行子帧对应k的值为3或4。
又例如，如图8B所示，如果UE在第二个上行子帧发送PUSCH，即UE在子帧n+5上发送PUSCH，BRU在子帧n+7上向DeNB发送PUSCH(如图8B细实线5所示)，那么对应的，DeNB在子帧n+3为BRU分配上行授权(如图8B细实线3所示)，此时k为(n+7)与(n+5)的差值，即2。
或者，如果BRU在子帧n+8上向DeNB发送PUSCH，(如图8B粗实线5所示)，那么对应的，DeNB在子帧n+3为BRU分配上行授权(如图8B粗实线3所示)，此时k为(n+8)与(n+5)的差值，即3。
或者，如果BRU在子帧n+9上向DeNB发送PUSCH(如图8B细虚线5所示)，那么对应的，DeNB在子帧n+5为BRU分配上行授权(如图8B细虚线3所示)，此时k为(n+9)与(n+5)的差值，即4。即第二个上行子帧对应k的取值为2、3或4。
又例如，如图8C所示，如果UE在第三个上行子帧发送PUSCH，即UE在子帧n+6上发送PUSCH，BRU在子帧n+8上向DeNB发送PUSCH(如图8C细实线5所示)，那么对应的，DeNB在子帧n+4为BRU分配上行授权(如图8C细实线3所示)，此时k为(n+8)与(n+6)的差值，即2。
或者，如果BRU在子帧n+9上向DeNB发送PUSCH，(如图8C粗实线5所示)，那么对应的，DeNB在子帧n+5为BRU分配上行授权(如图8C粗实线3所示)，此时k为(n+9)与(n+6)的差值，即3。
或者，如果BRU在子帧n+10上向DeNB发送PUSCH(如图8C细虚线5所示)，那么对应的，DeNB在子帧n+6为BRU分配上行授权(如图8C细虚线3所示)，此时k为(n+10)与(n+6)的差值，即4。即第三个上行子帧对应k的取值为2、3或4。
从图8A-图8C中可以看出，DeNB发送HARQ反馈与DeNB接收BRU发送的PUSCH之间的时间间隔至少为1个子帧，即预留更多的时间用于DeNB解调BRU发送的PUSCH，可以使得DeNB在发送HARQ反馈之前，有足够时间完成中继PUSCH的解调译码以获取UE发送PUSCH的CRC结果并完成上行调度。
(5)在TDM上下行子帧配比4中，n为1或2时，k为2、3或4，即第一个上行子帧和第二个上行子帧对应k为2、3或4。
示例性的，请参见图9A，为一种TDM上行调度时序示意图。
例如，根据TDM上下行调度时序的规定，DeNB在子帧n为UE分配上行授权，DeNB在子帧n+10上向UE发送HARQ反馈。如果UE在第一个上行子帧发送PUSCH，即UE在子帧n+4上发送PUSCH，BRU可以在子帧n+6上向DeNB发送PUSCH(如图9A细实线5所示)，那么对应的，DeNB在子帧n+2为BRU分配上行授权(如图9A细实线3所示)，此时k为(n+6)与(n+4)的差值，即2。
或者，如果BRU在子帧n+7上向DeNB发送PUSCH(如图9A粗实线5所示)，那么对应的，DeNB在子帧n+3为BRU分配上行授权(如图9A粗实线3所示)，此时k为(n+7)与(n+4)的差值，即3。
或者，如果BRU在子帧n+8上向DeNB发送PUSCH(如图9A细虚线5所示)，那么对应的，DeNB在子帧n+4为BRU分配上行授权(如图9A细虚线3所示)，此时k为(n+8)与(n+4)的差值，即4。即第一个上行子帧对应k的值为2、3或4。
又例如，如果UE在第二个上行子帧发送PUSCH，即UE在子帧n+5上发送PUSCH，BRU可以在子帧n+7上向DeNB发送PUSCH(如图9B细实线5所示)，那么对应的，DeNB 在子帧n+3为BRU分配上行授权(如图9B细实线3所示)，此时k为(n+7)与(n+5)的差值，即2。
或者，如果BRU在子帧n+8上向DeNB发送PUSCH(如图9B粗实线5所示)，那么对应的，DeNB在子帧n+4为BRU分配上行授权(如图9B粗实线3所示)，此时k为(n+8)与(n+5)的差值，即3。
或者，如果BRU在子帧n+9上向DeNB发送PUSCH(如图9B细虚线5所示)，那么对应的，DeNB在子帧n+5为BRU分配上行授权(如图9B细虚线3所示)，此时k为(n+9)与(n+5)的差值，即4。即第二个上行子帧对应k的值为2、3或4。
从图9A-图9B中可以看出，DeNB发送HARQ反馈与DeNB接收BRU发送的PUSCH之间的时间间隔至少为1个子帧，即预留更多的时间用于DeNB解调BRU发送的PUSCH，可以使得DeNB在发送HARQ反馈之前，有足够时间完成中继PUSCH的解调译码以获取UE发送PUSCH的CRC结果并完成上行调度。
(6)在TDM上下行子帧配比5中，n为1时，k为2、3或4，即第一个上行子帧对应k为2、3或4。
示例性的，请参见图10，为一种TDM上行调度时序示意图。
例如，根据TDM上下行调度时序的规定，DeNB在子帧n为UE分配上行授权，DeNB在子帧n+10上向UE发送HARQ反馈。如果UE在第一个上行子帧发送PUSCH，即UE在子帧n+4上发送PUSCH，BRU可以在子帧n+6上向DeNB发送PUSCH(如图10细实线5所示)，那么对应的，DeNB在子帧n+2为BRU分配上行授权(如图10细实线3所示)，此时k为(n+6)与(n+4)的差值，即2。
或者，BRU可以在子帧n+7上向DeNB发送PUSCH(如图10粗实线5所示)，那么对应的，DeNB在子帧n+3为BRU分配上行授权(如图10粗实线3所示)，此时k为(n+7)与(n+4)的差值，即3。
或者，BRU可以在子帧n+8上向DeNB发送PUSCH(如图10细虚线5所示)，那么对应的，DeNB在子帧n+4为BRU分配上行授权(如图10细虚线3所示)，此时k为(n+8)与(n+4)的差值，即4。即第一个上行子帧对应k的值为2、3或4。
从图10中可以看出，DeNB发送HARQ反馈与DeNB接收BRU发送的PUSCH之间的时间间隔至少为1个子帧，即预留更多的时间用于DeNB解调BRU发送的PUSCH，可以使得DeNB在发送HARQ反馈之前，有足够时间完成中继PUSCH的解调译码以获取UE发送PUSCH的CRC结果并完成上行调度。
(7)在TDM上下行子帧配比6中，n为1时，k为3或4；n为2或5时，k为2或3；n为3时，k为2；n为4时，k为2、3或4，即第一个上行子帧对应k为3或4，第二个上行子帧和第五个上行子帧对应k为2或3，第三个上行子帧对应k为2，第四个上行子帧对应k为2、3或4。
示例性的，请参见图11A，为一种TDM上行调度时序示意图。
例如，根据TDM上下行调度时序的规定，DeNB在子帧n为UE分配上行授权，DeNB在子帧n+10上向UE发送HARQ反馈。如果UE在第一个上行子帧发送PUSCH，即UE在子帧n+4上发送PUSCH，BRU可以在子帧n+7上向DeNB发送PUSCH(如图11A细实线5所示)，那么对应的，DeNB在子帧n+3为BRU分配上行授权(如图11A细实线3所示)，此时，k为(n+7)与(n+4)的差值，即3。
或者，BRU可以在子帧n+8上向DeNB发送PUSCH，(如图11A粗实线5所示)，那么对应的，DeNB在子帧n+4为BRU分配上行授权(如图11A粗实线3所示)，此时k为(n+8)与(n+4)的差值，即4。即第一个上行子帧对应k的值为3或4。
又例如，如图11B所示，如果UE在第二个上行子帧发送PUSCH，即UE在子帧n+4上发送PUSCH，BRU在子帧n+6上向DeNB发送PUSCH(如图11B细实线5所示)，那么对应的，DeNB在子帧n+2为BRU分配上行授权(如图11B细实线3所示)，此时k为(n+6)与(n+4)的差值，即2。
或者，BRU可以在子帧n+7上向DeNB发送PUSCH，(如图11B粗实线5所示)，那么对应的，DeNB在子帧n+3为BRU分配上行授权(如图11B粗实线3所示)，此时k为(n+7)与(n+4)的差值，即3。即第二个上行子帧对应k的值为2或3。
又例如，如图11C所示，如果UE在第三个上行子帧发送PUSCH，即UE在子帧n+4上发送PUSCH，BRU在子帧n+6上向DeNB发送PUSCH，那么对应的，DeNB在子帧n+2为BRU分配上行授权，此时k为(n+6)与(n+4)的差值，即2。
又例如，如图11D所示，如果UE在第四个上行子帧发送PUSCH，即UE在子帧n+4上发送PUSCH。其中，图11D所示子帧n为UE的第二个上行子帧，子帧n+1为UE的第三个上行子帧。BRU可以在子帧n+6、子帧n+7或子帧n+8上向DeNB发送PUSCH，可以推导出k等于2、3或4。即第四个上行子帧对应k的值为2、3或4。
再例如，如图11E所示，如果UE在第五个上行子帧发送PUSCH即UE在子帧n+4上发送PUSCH。其中，图11E所示子帧n为UE的第三个上行子帧，子帧n+1为UE的第四个上行子帧。BRU可以在子帧n+6或子帧n+7上向DeNB发送PUSCH，可以推导出k等于2或3。即第五个上行子帧对应k的取值为2或3。
从图11A-图11E中可以看出，DeNB发送HARQ反馈与DeNB接收BRU发送的PUSCH之间的时间间隔至少为1个子帧，即预留更多的时间用于DeNB解调BRU发送的PUSCH，可以使得DeNB在发送HARQ反馈之前，有足够时间完成中继PUSCH的解调译码以获取UE发送PUSCH的CRC结果并完成上行调度。
综上可知，对于上行调度而言，如果配置信息包括TDM上下行子帧配比，那么各个TDM上下行子帧配比与上述k的取值的对应关系见下表1。其中，表1以HARQ offset为0和1为例，其中，HARQ offset为0对应子帧2、子帧3和子帧4，HARQ offset为0对应子帧7、子帧8和子帧9。
表1-TDM上下行子帧配比与k的取值的对应关系表
子帧 0 1 2 3 4 5 6 7 8 9
sa0     3/4 2/3 2     3/4 2/3 2
Sa1     2/3/4 2/3       2/3/4 2/3  
Sa2     2/3/4         2/3/4    
Sa3     3/4 2/3/4 2/3/4          
Sa4     2/3/4 2/3/4            
Sa5     2/3/4              
Sa6     3/4 2/3 2     2/3/4   2/3
其中，表1中，sa0表示TDM上下行子帧配比0，sa1表示TDM上下行子帧配比1，sa2表示TDM上下行子帧配比2，sa3表示TDM上下行子帧配比3，sa4表示TDM上下行 子帧配比4，sa5表示TDM上下行子帧配比5，sa6表示TDM上下行子帧配比6。子帧2表示UE的第一个上行子帧，子帧3表示UE的第二个上行子帧，子帧4表示UE的第三个上行子帧，子帧7表示UE的第四个上行子帧，子帧8表示UE的第五个上行子帧，子帧9表示UE的第六个上行子帧；其余子帧类推。2/3表示k的取值为2或3，3/4表示k的取值为3或4，2/3/4表示k的取值为2或3或4。
第二种情况：对于上行调度而言，当配置信息包括TDD上下行子帧配比，不同的TDD上下行子帧配比下，k的取值也可能不同，包括以下几种情况：
(1)在TDD上下行子帧配比1中，n为1或4时，k为2；n为2或5时，k为2或3，即第一个上行子帧和第四个上行子帧对应k为2，第二个上行子帧和第五个上行子帧对应k为2或3。
例如，请参见图12A，为一种TDD上行调度时序示意图。UE在第一个上行子帧发送PUSCH。DeNB在子帧n上为UE分配上行授权，同时，DeNB在子帧n上可以将UE本次上行调度管理帧信息发送给BRU，指示BRU解调UE的PUSCH。DeNB在子帧n+4上为BRU分配上行授权，用于BRU传输UE发送的PUSCH。根据TDD上行同步HARQ时序的指示，DeNB在子帧n+10上向UE发送HARQ反馈，以指示UE重新发送PUSCH。UE在接收到上行授权后向BRU发送PUSCH，而UE可用的上行子帧从子帧n+6开始，即UE的第一个上行子帧为子帧n+6，所以UE可以在子帧n+6或在子帧n+7上发送PUSCH。从图12A中可以看出，如果UE在子帧n+6上发送PUSCH，那么BRU可以在子帧n+8或子帧n+9上发送PUSCH，但是，如果BRU在子帧n+9上发送PUSCH，那么，DeNB在子帧n+9上接收来自BRU的PUSCH，接着在子帧n+10上向UE发送HARQ反馈，如果DeNB在1ms内不能够完成对PUSCH的解调，那么在子帧n+10发送HARQ反馈会造成重传的HARQ合并增益丢失。为了使得DeNB在发送HARQ反馈之前，有足够的时间完全获得接收的PUSCH的解调结果，本申请实施例确定BRU在子帧n+8上发送PUSCH，即第一个上行子帧对应k的取值为2。
如果DeNB在子帧n+10上向UE发送HARQ反馈，那么DeNB可以在子帧n+10上为UE分配上行授权，用于指示该HARQ的新传或者重传。之后，UE在子帧n+16上对该HARQ作新传或者自适应重传或者非自适应重传。其中，子帧n+16可以认为是UE的第四个上行子帧。所以，同理，第四个上行子帧对应k的值为2，这里不再赘述。
又例如，UE在第二个上行子帧发送PUSCH。如图12B所示，DeNB在子帧n+3上为BRU分配上行授权，用于BRU传输UE发送的PUSCH。UE在子帧n+4上向BRU发送PUSCH。BUR可以在子帧n+6上向DeNB发送PUSCH(如图12B中细实线5所示)，即k等于2，或者，BUR可以在子帧n+7上向DeNB发送PUSCH(如图12B中粗实线5所示)，即k等于3。根据TDD上下行调度时序的指示，DeNB在子帧n+10上可以向UE发送HARQ反馈，以指示UE重新发送PUSCH。从图12B中可以看出，当BRU在子帧n+6或者子帧n+7上向DeNB发送PUSCH，DeNB发送HARQ反馈与DeNB接收来自BRU的PUSCH之间至少间隔2个子帧，有足够的时间可以获取PUSCH的解调结果。所以，第二个上行子帧对应的k为2或3。与图12A同理，第五个上行子帧对应的k也为2或3。
(2)在TDD上下行子帧配比2中，n为1或4时，k为2、3或4，即第一个上行子帧和第四个上行子帧对应k为2、3或4。
配置信息中的TDD上下行子帧配比为2时的DeNB调度UE和BRU进行上行传输的 时序，与TDM上下行子帧配比为2时的DeNB调度UE和BRU进行上行传输的时序相同，这里就不再赘述。可继续参见图7所示，这种情况下，第一个上行子帧和第四个上行子帧对应k为2、3或4。当第一个上行子帧和第四个上行子帧对应k为2、3或4时，DeNB发送HARQ反馈与DeNB接收来自BRU的PUSCH之间至少间隔1个子帧，有足够的时间可以获取PUSCH的解调结果。
(3)在TDD上下行子帧配比3中，n为1时，k为3或4；n为2或3时，k为2、3或4，即第一个上行子帧对应k为3或4，第二个上行子帧和第三个上行子帧对应k为2、3或4。
配置信息中的TDD上下行子帧配比为3时的DeNB调度UE和BRU进行上行传输的时序，与TDM上下行子帧配比为3时的DeNB调度UE和BRU进行上行传输的时序相同，这里就不再赘述。可继续参见图8A-图8C所示，第一个上行子帧对应k为3或4，第二个上行子帧和第三个上行子帧对应k为2、3或4。这种情况下，DeNB发送HARQ反馈与DeNB接收来自BRU的PUSCH之间至少间隔1个子帧，有足够的时间可以获取PUSCH的解调结果。
(4)在TDD上下行子帧配比4中，n为1或2时，k为2、3或4，即第一个上行子帧和第二个上行子帧对应k为2、3或4。
配置信息中的TDD上下行子帧配比为4时的DeNB调度UE和BRU进行上行传输的时序，与TDM上下行子帧配比为3时的DeNB调度UE和BRU进行上行传输的时序相同，这里就不再赘述。可继续参见图9A-图9B所示，第一个上行子帧和第二个上行子帧对应k为2、3或4。这种情况下，DeNB发送HARQ反馈与DeNB接收来自BRU的PUSCH之间至少间隔1个子帧，有足够的时间可以获取PUSCH的解调结果。
(5)在TDD上下行子帧配比5中，n为1时，k为2、3或4，即第一个上行子帧对应k为2、3或4。
配置信息中的TDD上下行子帧配比为5时的DeNB调度UE和BRU进行上行传输的时序，与TDM上下行子帧配比为5时的DeNB调度UE和BRU进行上行传输的时序相同，这里就不再赘述。可继续参见图10所示，这种情况下，第一个上行子帧对应k为2、3或4。当第一个上行子帧对应k为2、3或4，DeNB发送HARQ反馈与DeNB接收来自BRU的PUSCH之间至少间隔1个子帧，有足够的时间可以获取PUSCH的解调结果。
综上可知，对于上行调度而言，在一个帧内，从子帧0为起点，且DeNB在子帧0为UE分配下行授权，如果配置信息包括TDD上下行子帧配比，那么各个TDD上下行子帧配比与上述k的取值的对应关系见下表2。其中，表2以子帧0到子帧9为例。
表2-TDD上下行子帧配比与k的取值的对应关系表
子帧 0 1 2 3 4 5 6 7 8 9
sa0                    
Sa1     2 2/3       2 2/3  
Sa2     2/3/4         2/3/4    
Sa3     3/4 2/3/4 2/3/4          
Sa4     2/3/4 2/3/4            
Sa5     2/3/4              
Sa6                    
其中，表2中，sa0表示TDD上下行子帧配比0，sa1表示TDD上下行子帧配比1，sa2表示TDD上下行子帧配比2，sa3表示TDD上下行子帧配比3，sa4表示TDD上下行子帧配比4，sa5表示TDD上下行子帧配比5，sa6表示TDD上下行子帧配比6。对于sa0来说，子帧2表示UE的第一个上行子帧，子帧3表示UE的第二个上行子帧，子帧4表示UE的第三个上行子帧，子帧7表示UE的第四个上行子帧，子帧8表示UE的第五个上行子帧，子帧9表示UE的第六个上行子帧；其余子帧类推。2/3表示k的取值为2或3，3/4表示k的取值为3或4，2/3/4表示k的取值为2或3或4。对于TDD上下行子帧配比0和TDD上下行子帧配比6，本申请实施例不做考虑。
第三种情况：对于下行调度而言，当配置信息包括TDM上下行子帧配比，不同的TDM上下行子帧配比下，k的取值也可能不同，包括以下几种情况：
(1)在TDM上下行子帧配比0中，n为1或4时，k为3，n为2、3、5和6时，k为2，即第一个上行子帧和第四个上行子帧对应k为3，第二个上行子帧、第三个上行子帧、第五个上行子帧和第六个上行子帧对应k为2。
示例性的，请参见图13，为一种TDM下行调度时序示意图。需要说明的是，下文中，针对下行调度时序图，线条1表示DeNB为UE调度下行PDCCH或PDSCH，线条2表示DeNB将UE的下行调度管理帧信息发送给BRU，线条3表示DeNB为BRU分配上行授权，线条4为UE向BRU发送下行ACK反馈，线条5为BRU向DeNB发送PUSCH以中继UE的下行ACK反馈。
在图13中，DeNB连读调度多个下行子帧，例如，DeNB在子帧n、子帧n+1、子帧n+2、子帧n+3和子帧n+4上为UE调度下行PDCCH或PDSCH，同时，DeNB分别在子帧n、子帧n+2和子帧n+4上可以将UE本次下行调度管理帧信息发送给BRU，指示BRU解调UE的PUCCH。图13中，椭圆表示针对下行调度，其圈定的这些子帧在同一个上行子帧完成下行ACK反馈。例如，图13中，针对子帧n的下行调度，UE向BRU单独发送下行ACK反馈，针对子帧n+1和子帧n+2的下行调度，UE向BRU一起发送下行ACK反馈，针对子帧n+3和子帧n+4的下行调度，UE也向BRU一起发送下行ACK反馈。
记一个LTE帧内UE可用的上行子帧中，第一个可用的子帧称为第一个上行子帧，例如，图13中的子帧n+2即为第一个上行子帧。以此类推，子帧n+3为第二个上行子帧，子帧n+4为第三个上行子帧，子帧n+7为第四个上行子帧，子帧n+8为第五个上行子帧，子帧n+9为第六个上行子帧。
例如，由于DeNB在子帧n上为UE调度下行PDCCH或PDSCH，根据TDM上下行调度时序的规定，可以知道，BRU在n+10向DeNB发送PUSCH以中继UE的下行ACK反馈，UE在子帧n+4，即第三个上行子帧上向BRU发送下行ACK反馈，此时，k的取值是(n+6)与(n+4)的差值，即k为2。同理，可以推导出，第六个上行子帧对应的k也为2，这里不再赘述。
又例如，由于DeNB在子帧n+1和子帧n+2上为UE调度下行PDCCH或PDSCH，根据TDM上下行调度时序的规定，可以知道，UE在子帧n+8上向BRU发送下行ACK反馈此时，k的取值是(n+10)与(n+7)的差值，即k为3，即第一个上行子帧对应k的值为3。同理，可以推导出，第四个上行子帧对应的k也为3，这里不再赘述。
又例如，DeNB在子帧n+3和子帧n+4上为UE调度下行PDCCH或PDSCH，BRU在n+10向DeNB发送PUSCH以中继UE的下行ACK反馈，UE在子帧n+8上向BRU发送 下行ACK反馈，所以，k的取值可以是(n+10)与(n+8)的差值，即k为2，即第二个上行子帧对应k的值为2。同理，可以推导出，第五个上行子帧对应的k也为2，这里不再赘述。
(2)在TDM上下行子帧配比1中，n为1、2、4和5时，k为2，即第一个上行子帧、第二个上行子帧、第四个上行子帧和第五个上行子帧对应k为2。
示例性的，请参见图14，为一种TDM下行调度时序示意图。在图14中，DeNB连读调度多个下行子帧，例如，DeNB在子帧n+2、子帧n+3、子帧n+4、子帧n+5和子帧n+6上为UE调度下行PDCCH或PDSCH。为了便于描述，在下文中，DeNB在子帧n+2和子帧n+3上为UE调度下行PDCCH或PDSCH，称为第一下行调度；DeNB在子帧n+4、子帧n+5和子帧n+6上为UE调度下行PDCCH或PDSCH，称为第二下行调度。对于第一下行调度而言，DeNB可以在子帧n+2上可以将UE本次下行调度管理帧信息发送给BRU，指示BRU解调UE的PUCCH；对于第二下行调度而言，DeNB可以在子帧n+6上可以将UE本次下行调度管理帧信息发送给BRU，指示BRU解调UE的PUCCH。对于第一下行调度而言，DeNB在子帧n+8发送下行授权；对于第二下行调度而言，DeNB在子帧n+9发送下行授权。
当DeNB在子帧n+2和子帧n+3上为UE调度下行PDCCH或PDSCH，即第一下行调度时，可知对应的，UE在子帧n+9上向BRU发送ACK反馈，那么，BRU可以在n+11向DeNB发送PUSCH以中继UE的下行ACK反馈。所以，可以知道k的取值可以是(n+11)与(n+9)的差值，即k为2，即第一个上行子帧对应k的值为2。同理，可以推导出，第四个上行子帧对应的k也为2，这里不再赘述。
当DeNB在子帧n+4、子帧n+5和子帧n+6上为UE调度下行PDCCH或PDSCH，即第二下行调度时，可知对应的，UE在子帧n+12上向BRU发送ACK反馈，那么，BRU可以在n+12向DeNB发送PUSCH以中继UE的下行ACK反馈。所以，可以知道k的取值可以是(n+12)与(n+10)的差值，即k为2，即第二个上行子帧对应k的值为2。同理，可以推导出，第五个上行子帧对应的k也为2，这里不再赘述。
(3)在TDM上下行子帧配比2中，n为1或4时，k为2，即第一个上行子帧和第四个上行子帧对应k为2。
示例性的，请参见图15，为一种TDM下行调度时序示意图。在图15中，DeNB连读调度多个下行子帧，例如，DeNB在子帧n+2、子帧n+3、子帧n+4、子帧n+5和子帧n+6上为UE调度下行PDCCH或PDSCH，同时，DeNB在子帧n+6上可以将UE本次下行调度管理帧信息发送给BRU，指示BRU解调UE的PUCCH。其中，DeNB在子帧n+9发送下行授权，UE在子帧n+10上向BRU发送ACK反馈，那么，BRU可以在n+12向DeNB发送PUSCH以中继UE的下行ACK反馈。所以，可以知道k的取值是(n+12)与(n+10)的差值，即k为2，即第一个上行子帧对应k的值为2。同理，可以推导出，第四个上行子帧对应的k也为2，这里不再赘述。
(4)在TDM上下行子帧配比3中，n为1时，k为3；n为2和3时，k为2，即第一个上行子帧对应k为3，第二个上行子帧和第三个上行子帧对应k为2。
示例性的，请参见图16，为一种TDM下行调度时序示意图。在图16中，DeNB连读调度多个下行子帧，例如，DeNB在子帧n、子帧n+1、子帧n+2、子帧n+3、子帧n+4、子帧n+5上为UE调度下行PDCCH或PDSCH，称为第一下行调度；DeNB在子帧n+6和 子帧n+7上为UE调度下行PDCCH或PDSCH，称为第二下行调度；DeNB在子帧n+8和子帧n+9上为UE调度下行PDCCH或PDSCH，称为第三下行调度。对于第一下行调度而言，DeNB在子帧n+5上可以将UE本次下行调度管理帧信息发送给BRU；对于第二下行调度而言，DeNB在子帧n+7上可以将UE本次下行调度管理帧信息发送给BRU；对于第三下行调度而言，DeNB在子帧n+9上可以将UE本次下行调度管理帧信息发送给BRU。
对于第一下行调度而言，DeNB在子帧n+10发送下行授权，UE在子帧n+11上向BRU发送下行ACK反馈，那么，BRU可以在n+14向DeNB发送PUSCH以中继UE的下行ACK反馈。所以，可以知道k的取值是(n+14)与(n+11)的差值，即k为3，即第一个上行子帧对应k的值为3。
对于第二下行调度而言，DeNB在子帧n+11发送下行授权，UE在子帧n+12上向BRU发送下行ACK反馈，那么，BRU可以在n+14向DeNB发送PUSCH以中继UE的下行ACK反馈。所以，可以知道k的取值可以是(n+14)与(n+12)的差值，即k为2，即第二个上行子帧对应k的值为2。
对于第三下行调度而言，DeNB在子帧n+12发送下行授权，UE在子帧n+13上向BRU发送下行ACK反馈，那么，BRU可以在n+15向DeNB发送PUSCH以中继UE的下行ACK反馈。所以，可以知道k的取值可以是(n+15)与(n+13)的差值，即k为2，即第三个上行子帧对应k的值为2。
(5)在TDM上下行子帧配比4中，n为1或2时，k为2，即第一个上行子帧和第二个上行子帧对应k为2。
示例性的，请参见图17，为一种TDM下行调度时序示意图。在图17中，DeNB连读调度多个下行子帧，例如，DeNB在子帧n、子帧n+1、子帧n+2、子帧n+3和子帧n+4上为UE调度下行PDCCH或PDSCH，称为第一下行调度；DeNB在子帧n+5、子帧n+6、子帧n+7和子帧n+8上为UE调度下行PDCCH或PDSCH，称为第二下行调度。对于第一下行调度而言，DeNB在子帧n+4上可以将UE本次下行调度管理帧信息发送给BRU；对于第二下行调度而言，DeNB在子帧n+8上可以将UE本次下行调度管理帧信息发送给BRU。
对于第一下行调度而言，DeNB在子帧n+9发送下行授权，UE在子帧n+11上向BRU发送下行ACK反馈，那么，BRU可以在n+13向DeNB发送PUSCH以中继UE的下行ACK反馈。所以，可以知道k的取值可以是(n+13)与(n+11)的差值，即k为2，即第一个上行子帧对应k的值为2。
对于第二下行调度而言，DeNB在子帧n+10发送下行授权，UE在子帧n+12上向BRU发送下行ACK反馈，那么，BRU可以在n+14向DeNB发送PUSCH以中继UE的下行ACK反馈。所以，可以知道k的取值可以是(n+14)与(n+12)的差值，即k为2，即第二个上行子帧对应k的值为2。
(6)在TDM上下行子帧配比5中，n为1时，k2为2，即第一个上行子帧对应k为2。
示例性的，请参见图18，为一种TDM下行调度时序示意图。在图18中，DeNB连读调度多个下行子帧，例如，DeNB在子帧n、子帧n+1、子帧n+2、子帧n+3、子帧n+4、子帧n+5、子帧n+6和子帧n+7上为UE调度下行PDCCH或PDSCH，DeNB在子帧n+7上可以将UE本次下行调度管理帧信息发送给BRU。
DeNB在子帧n+9发送下行授权，UE在子帧n+11上向BRU发送下行ACK反馈，那 么，BRU可以在n+13向DeNB发送PUSCH以中继UE的下行ACK反馈。所以，可以知道k的取值可以是(n+13)与(n+11)的差值，即k为2，即第一个上行子帧对应k的值为2。
(7)在TDM上下行子帧配比6中，n为1时，k为3；n为2、3、4和5时，k为2，即第一个上行子帧对应k为3，第二个上行子帧、第三个上行子帧、第四个上行子帧和第五个上行子帧对应k为2。
示例性的，请参见图19，为一种TDM下行调度时序示意图。在图19中，DeNB连读调度多个下行子帧，例如，DeNB在子帧n+2为UE调度下行PDCCH或PDSCH，称为第一下行调度；DeNB在子帧n+3、子帧n+4和子帧n+5上为UE调度下行PDCCH或PDSCH，称为第二下行调度；DeNB在子帧n+6和子帧n+7上为UE调度下行PDCCH或PDSCH，称为第三下行调度；DeNB在子帧n+8和子帧n+9上为UE调度下行PDCCH或PDSCH，称为第四下行调度；DeNB在子帧n+10和子帧n+11上为UE调度下行PDCCH或PDSCH，称为第五下行调度。
对于第一下行调度而言，DeNB在子帧n+2上可以将UE本次下行调度管理帧信息发送给BRU；对于第二下行调度而言，DeNB在子帧n+5上可以将UE本次下行调度管理帧信息发送给BRU；对于第三下行调度而言，DeNB在子帧n+7上可以将UE本次下行调度管理帧信息发送给BRU；对于第四下行调度而言，DeNB在子帧n+9上可以将UE本次下行调度管理帧信息发送给BRU；对于第五下行调度而言，DeNB在子帧n+11上可以将UE本次下行调度管理帧信息发送给BRU。
对于第一下行调度而言，DeNB在子帧n+2为UE调度下行PDCCH或PDSCH，UE在子帧n+9上向BRU发送下行ACK反馈，那么，BRU可以在n+11向DeNB发送PUSCH以中继UE的下行ACK反馈。所以，可以知道k的取值是(n+11)与(n+9)的差值，即k为2，即第一个上行子帧对应k的值为2。
对于第二下行调度而言，UE在子帧n+10上向BRU发送下行ACK反馈，BRU可以在n+12向DeNB发送PUSCH以中继UE的下行ACK反馈。所以，可以知道k的取值是(n+12)与(n+10)的差值，即k为2，即第二个上行子帧对应k的值为2。
对于第三下行调度而言，UE在子帧n+10上向BRU发送下行ACK反馈，BRU可以在n+12向DeNB发送PUSCH以中继UE的下行ACK反馈。所以，可以知道k的取值是(n+12)与(n+10)的差值，即k为2，即第三个上行子帧对应k的值为2。
对于第四下行调度而言，UE在子帧n+15上向BRU发送下行ACK反馈，BRU可以在n+17向DeNB发送PUSCH以中继UE的下行ACK反馈。所以，可以知道k的取值是(n+17)与(n+15)的差值，即k为2，即第四个上行子帧对应k的值为3。
对于第五下行调度而言，UE在子帧n+16上向BRU发送下行ACK反馈，BRU可以在n+18向DeNB发送PUSCH以中继UE的下行ACK反馈。所以，可以知道k的取值是(n+18)与(n+16)的差值，即k为2，即第五个上行子帧对应k的值为2。
综上可知，对于下行调度而言，如果配置信息包括TDM上下行子帧配比，那么各个TDM上下行子帧配比与上述k的取值的对应关系见下表3。其中，表3以HARQ offset为0和1为例，其中，HARQ offset为0对应子帧2、子帧3和子帧4，HARQ offset为0对应子帧7、子帧8和子帧9。
表3-TDM上下行子帧配比与k的取值的对应关系表
子帧 0 1 2 3 4 5 6 7 8 9
sa0     3 2 2     3 2 2
Sa1     2 2       2 2  
Sa2     2         2    
Sa3     3 2 2          
Sa4     2 2            
Sa5     2              
Sa6     3 2 2     2 2  
其中，表3中，sa0表示TDM上下行子帧配比0，sa1表示TDM上下行子帧配比1，sa2表示TDM上下行子帧配比2，sa3表示TDM上下行子帧配比3，sa4表示TDM上下行子帧配比4，sa5表示TDM上下行子帧配比5，sa6表示TDM上下行子帧配比6。子帧2表示UE的第一个上行子帧，子帧3表示UE的第二个上行子帧，子帧4表示UE的第三个上行子帧，子帧7表示UE的第四个上行子帧，子帧8表示UE的第五个上行子帧，子帧9表示UE的第六个上行子帧。
综上，从图13-图19中可以看出，尽管下行调度子帧与下行ACK反馈之间固定为4个子帧，但是，本申请实施例在每个LTE帧内，可以使得UE在每个下行子帧都可以得到调度，节约了空口资源。同时，对于UE的连续多个下行调度子帧的下行ACK反馈，DeNE也不需要相应的连续调度BRU传输上行PUSCH，从而降低上行空口开销。
第四种情况，对于下行调度而言，如果允许损失部分下行子帧调度机会，即在一个调度周期内，使用部分下行子帧进行下行调度，那么UE和BRU的下行子帧可以按照TDD方式分配。具体的，当配置信息包括TDD上下行子帧配比，不同的TDD上下行子帧配比下，k的取值也可能不同，包括以下几种情况：
(1)在TDD上下行子帧配比1中，n为1、2、4或5时，k2为2，即第一个上行子帧、第二个上行子帧、第四个上行子帧和第五个上行子帧对应k为2。
示例性的，请参见图20，为一种TDD下行调度时序示意图。在图20中，DeNB连读调度多个下行子帧，例如，DeNB在子帧n+2和子帧n+3上为UE调度下行PDCCH或PDSCH，称为第一下行调度；DeNB在子帧n+6上为UE调度下行PDCCH或PDSCH，称为第二下行调度。对于第一下行调度而言，DeNB可以在子帧n+3上可以将UE本次下行调度管理帧信息发送给BRU，指示BRU解调UE的PUCCH；对于第二下行调度而言，DeNB可以在子帧n+6上可以将UE本次下行调度管理帧信息发送给BRU，指示BRU解调UE的PUCCH。对于第一下行调度而言，DeNB在子帧n+8发送下行授权；对于第二下行调度而言，DeNB在子帧n+9发送下行授权。
根据TDD上下行子帧调度时序的规定，如果DeNB在子帧n+2和子帧n+3上为UE调度下行PDCCH或PDSCH，即第一下行调度时，可以知道，UE在子帧n+9上向BRU发送下行ACK反馈，那么，BRU可以在n+11向DeNB发送PUSCH以中继UE的下行ACK反馈。所以，可以知道k的取值是(n+11)与(n+9)的差值，即k为2，即第一个上行子帧对应k的值为2。同理，可以推导出，第四个上行子帧对应的k也为2，这里不再赘述。
当DeNB在子帧n+6上为UE调度下行PDCCH或PDSCH，即第二下行调度时，可 知对应的，UE在子帧n+12上向BRU发送下行ACK反馈，那么，BRU可以在n+12向DeNB发送PUSCH以中继UE的下行ACK反馈。所以，可以知道k的取值是(n+12)与(n+10)的差值，即k为2，即第二个上行子帧对应k的值为2。同理，可以推导出，第五个上行子帧对应的k也为2，这里不再赘述。
(2)在TDD上下行子帧配比2中，n为1或2时，k为2，即第一个上行子帧和第二个上行子帧对应k为2。
示例性的，请参见图21，为一种TDD下行调度时序示意图。在图21中，DeNB连读调度多个下行子帧，例如，DeNB在子帧n+2、子帧n+3、子帧n+4和子帧n+6上为UE调度下行PDCCH或PDSCH，DeNB在子帧n+6上可以将UE本次下行调度管理帧信息发送给BRU，指示BRU解调UE的PUCCH。其中，DeNB在子帧n+9发送下行授权，UE在子帧n+10上向BRU发送下行ACK反馈，那么，BRU可以在n+12向DeNB发送PUSCH以中继UE的下行ACK反馈。所以，可以知道k的取值是(n+12)与(n+10)的差值，即k为2，即第一个上行子帧对应k的值为2。同理，可以推导出，第四个上行子帧对应的k也为2，这里不再赘述。
(3)在TDD上下行子帧配比3中，n为1时，k为3，n为2和3时，k为2，即第一个上行子帧对应k为3，第二个上行子帧和第三个上行子帧对应k为2。
示例性的，请参见图22，为一种TDD下行调度时序示意图。在图21中，DeNB连读调度多个下行子帧，例如，DeNB在子帧n、子帧n+4和子帧n+5上为UE调度下行PDCCH或PDSCH，称为第一下行调度；DeNB在子帧n+6和子帧n+7上为UE调度下行PDCCH或PDSCH，称为第二下行调度；DeNB在子帧n+8和子帧n+9上为UE调度下行PDCCH或PDSCH，称为第三下行调度。对于第一下行调度而言，DeNB在子帧n+5上可以将UE本次下行调度管理帧信息发送给BRU；对于第二下行调度而言，DeNB在子帧n+7上可以将UE本次下行调度管理帧信息发送给BRU；对于第三下行调度而言，DeNB在子帧n+9上可以将UE本次下行调度管理帧信息发送给BRU。
对于第一下行调度而言，DeNB在子帧n+10发送下行授权，UE在子帧n+11上向BRU发送下行ACK反馈，那么，BRU可以在n+14向DeNB发送PUSCH以中继UE的下行ACK反馈。所以，可以知道k的取值是(n+14)与(n+11)的差值，即k为3，即第一个上行子帧对应k的值为3。
对于第二下行调度而言，DeNB在子帧n+11发送下行授权，UE在子帧n+12上向BRU发送下行ACK反馈，那么，BRU可以在n+14向DeNB发送PUSCH以中继UE的下行ACK反馈。所以，可以知道k的取值是(n+14)与(n+12)的差值，即k为2，即第二个上行子帧对应k的值为2。
对于第三下行调度而言，DeNB在子帧n+12发送下行授权，UE在子帧n+13上向BRU发送下行ACK反馈，那么，BRU可以在n+15向DeNB发送PUSCH以中继UE的下行ACK反馈。所以，可以知道k的取值是(n+15)与(n+13)的差值，即k为2，即第三个上行子帧对应k的值为2。
(4)在TDD上下行子帧配比4中，n为1或2时，k为2，即第一个上行子帧和第二个上行子帧对应k为2。
示例性的，请参见图23，为一种TDD下行调度时序示意图。在图23中，DeNB连读调度多个下行子帧，例如，DeNB在子帧n、子帧n+3和子帧n+4上为UE调度下行PDCCH 或PDSCH，称为第一下行调度；DeNB在子帧n+5、子帧n+6、子帧n+7和子帧n+8上为UE调度下行PDCCH或PDSCH，称为第二下行调度。对于第一下行调度而言，DeNB在子帧n+4上可以将UE本次下行调度管理帧信息发送给BRU；对于第二下行调度而言，DeNB在子帧n+8上可以将UE本次下行调度管理帧信息发送给BRU。
对于第一下行调度而言，DeNB在子帧n+9发送下行授权，UE在子帧n+11上向BRU发送下行ACK反馈，那么，BRU可以在n+13向DeNB发送PUSCH以中继UE的下行ACK反馈。所以，可以知道k的取值是(n+13)与(n+11)的差值，即k为2，即第一个上行子帧对应k的值为2。
对于第二下行调度而言，DeNB在子帧n+10发送下行授权，UE在子帧n+12上向BRU发送下行ACK反馈，那么，BRU可以在n+14向DeNB发送PUSCH以中继UE的下行ACK反馈。所以，可以知道k的取值是(n+14)与(n+12)的差值，即k为2，即第二个上行子帧对应k的值为2。
(5)在TDD上下行子帧配比5中，n为1时，k为2，即第一个上行子帧对应k为2。
示例性的，请参见图24，为一种TDD下行调度时序示意图。在图24中，DeNB连读调度多个下行子帧，例如，DeNB在子帧n、子帧n+2、子帧n+3、子帧n+4、子帧n+5、子帧n+6和子帧n+7上为UE调度下行PDCCH或PDSCH，DeNB在子帧n+7上可以将UE本次下行调度管理帧信息发送给BRU。
DeNB在子帧n+9发送下行授权，UE在子帧n+11上向BRU发送下行ACK反馈，那么，BRU可以在n+13向DeNB发送PUSCH以中继UE的下行ACK反馈。所以，可以知道k的取值是(n+13)与(n+11)的差值，即k为2，即第一个上行子帧对应k的值为2。
综上可知，对于下行调度而言，如果配置信息包括TDD上下行子帧配比，那么各个TDM上下行子帧配比与上述k的取值的对应关系见下表4。其中，表4以子帧n到子帧n+9，且，n等于0为例。
表4-TDD上下行子帧配比与k的取值的对应关系表
子帧 0 1 2 3 4 5 6 7 8 9
sa0     3 2 2     3 2 2
Sa1     2 2       2 2  
Sa2     2         2    
Sa3     3 2 2          
Sa4     2 2            
Sa5     2              
Sa6     3 2 2     2 2  
其中，表4中，sa0表示TDD上下行子帧配比0，sa1表示TDD上下行子帧配比1，sa2表示TDD上下行子帧配比2，sa3表示TDD上下行子帧配比3，sa4表示TDD上下行子帧配比4，sa5表示TDD上下行子帧配比5，sa6表示TDD上下行子帧配比6。子帧2表示UE的第一个上行子帧，子帧3表示UE的第二个上行子帧，子帧4表示UE的第三个上行子帧，子帧7表示UE的第四个上行子帧，子帧8表示UE的第五个上行子帧，子帧9表示UE的第六个上行子帧。
综上，从图20-图24中可以看出，虽然损失了部分下行子帧，但是，对于UE的连续多个下行调度子帧的下行ACK反馈，DeNB不需要连续调度BRU传输上行PUSCH，从而 降低上行空口开销。
本申请所示的中继通信系统通过上述方案，基站在调度HARQ之前，有足够的时间获得来自UE的PUSCH的解调结果；以及基站在对UE和BRU进行下行调度时，能够尽量节省上行空口资源的开销。
下面结合附图以UE的随机接入过程以及连接态下的上下行调度过程为例，介绍本申请实施例提供的通信方法。
请参见图25，为UE的随机接入过程以及连接态下的上下行调度过程的示意图，具体流程描述如下：
S251、UE向RBU发送随机序列Preamble，从而，BRU将Preamble发送给DeNB。
其中，UE向RBU发送PRACH，PRACH承载有Preamble。BRU解调接收的PRACH，并向DeNB发送上行数据信道，RBU以及DeNB可以根据Preamble的检测结果确定UE所传输的上行信道是否是经过BRU转发的，即确定UE是否是中继传输用户。如果DeNB确定UE所传输的上行信道是经过BRU转发的，BRU可以对下行信道信号作直接放大处理，那么DeNB只接收BRU转发的上行数据信道，不对上行数据信道的信号作其他处理。
S252、DeNB向UE发送MSG2和MSG3。
DeNB可以在任意上行子帧调度MSG2与MSG3。
S253、UE向BRU发送MSG3或者RRC链接请求，从而，BRU向DeNB发送MSG3或者RRC链接请求。
如果DeNB没有及时获取到BRU解调MSG3的CRC结果，那么DeNB可以按照FDD上行同步HARQ的调度时序在重传时刻指示UE做自适应或者非自适应重传。
S254、DeNB向UE发送MSG4或者RRC重配连接消息，其中，MSG4或者RRC重配连接消息包括前述的配置信息。
该配置信息可以包括TDM上下行子帧配比，也可以包括TDD上下行子帧配比，可以指示UE之后进行上下行传输的上下行子帧调度时序关系，即DeNB调度UE和BRU进行上下行传输的上行子帧。
S255、UE根据配置信息向BRU发送第一上行信道，从而，BRU将该第一上行信道转发给DeNB。
具体的，第一上行信道可以是PUSCH，也可以是PUCCH，BRU可以DeNB发送第二上行信道，该第二上行信道承载有对第一上行信道的解调结果。
之后，DeNB对UE和BRU的调度均按照配置信息所指示的上下行调度时序，例如，之后的流程可以包括：
S256、UE向BRU发送MSG5或下行ACK反馈。
S256、DeNB向UE发送PDCCH、PDSCH或PHICH等下行信道，从而，UE在所有FDD下行子帧上接收。
S257、UE根据配置信息所指示的上行子帧向BRU发送PUCCH、PUSCH或Sounding等上行信道，从而，BRU接收该PUCCH、PUSCH或Sounding等上行信道。
S258、BRU对接收的PUCCH、PUSCH或Sounding等上行信道进行解调译码，并在配置信息所指示的非UE使用的上行子帧向DeNB发送上行信道，该上行信道包括对接收的PUCCH、PUSCH或Sounding等上行信道的解调结果。
本申请通过上述方案，配置信息可以用于指示终端设备在子帧n上向中继设备发送第 一上行信道，并调度中继设备在子帧n+k上向网络设备发送第二上行信道，当子帧n+K为网络设备向终端设备发送HARQ反馈所在的子帧，该配置信息可以约束子帧n+K与子帧n+k之间的时间差值能够保证网络设备正确接收且解码中继设备在子帧n+k上向网络设备发送的第二上行信道。可见，在中继通信系统中，通过本申请实施例提供的方法，能够使得DeNB在发送HARQ反馈之前，有足够时间完成中继PUSCH的解调译码，从而避免PUSCH同步HARQ可能发生的冲突。
上述本申请提供的实施例中，分别从网络设备、终端、以及网络设备和终端之间交互的角度对本申请实施例提供的方法进行了介绍。为了实现上述本申请实施例提供的方法中的各功能，网络设备和终端可以包括硬件结构和/或软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能以硬件结构、软件模块、还是硬件结构加软件模块的方式来执行，取决于技术方案的特定应用和设计约束条件。
下面结合附图介绍本申请实施例中用来实现上述方法的通信装置。因此，上文中的内容均可以用于后续实施例中，重复的内容不再赘述。
图26示出了一种通信装置2600的结构示意图。其中，通信装置2600可以是网络设备，能够实现本申请实施例提供的方法中网络设备的功能；通信装置2600也可以是能够支持网络设备实现本申请实施例提供的方法中网络设备的功能的装置。通信装置2600可以是硬件结构、软件模块、或硬件结构加软件模块。通信装置2600可以由芯片系统实现。本申请实施例中，芯片系统可以由芯片构成，也可以包含芯片和其他分立器件。
通信装置2600可以包括处理模块2601和通信模块2602。
处理模块2601可以用于执行图4所示的实施例中的步骤S32，和/或用于支持本文所描述的技术的其它过程。
通信模块2602用于通信装置2600和其它模块进行通信，其可以是电路、器件、接口、总线、软件模块、收发器或者其它任意可以实现通信的装置。
通信模块2602可以用于执行图4所示的实施例中的步骤S31，和/或用于支持本文所描述的技术的其它过程。
其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
图27示出了一种通信装置2700的结构示意图。其中，通信装置2700可以是终端，能够实现本申请实施例提供的方法中终端的功能；通信装置2700也可以是能够支持终端实现本申请实施例提供的方法中终端的功能的装置。通信装置2700可以是硬件结构、软件模块、或硬件结构加软件模块。通信装置2700可以由芯片系统实现。本申请实施例中，芯片系统可以由芯片构成，也可以包含芯片和其他分立器件。
通信装置2700可以包括处理模块2701和通信模块2702。
处理模块2701可以用于执行图4所示的实施例中的步骤S33，和/或用于支持本文所描述的技术的其它过程。
通信模块2702可以用于执行图4所示的实施例中的步骤S31，和/或用于支持本文所描述的技术的其它过程。通信模块2702用于通信装置2700和其它模块进行通信，其可以是电路、器件、接口、总线、软件模块、收发器或者其它任意可以实现通信的装置。
其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功 能描述，在此不再赘述。
本申请实施例中对模块的划分是示意性的，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，另外，在本申请各个实施例中的各功能模块可以集成在一个处理器中，也可以是单独物理存在，也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。
如图28所示为本申请实施例提供的通信装置2800，其中，通信装置2800可以是图4所示的实施例中的网络设备，能够实现本申请实施例提供的方法中网络设备的功能；通信装置2800也可以是能够支持网络设备实现本申请实施例提供的方法中网络设备的功能的装置。其中，该通信装置2800可以为芯片系统。本申请实施例中，芯片系统可以由芯片构成，也可以包含芯片和其他分立器件。
在硬件实现上，上述通信模块2602可以为收发器，收发器集成在通信装置2800中构成通信接口2810。
通信装置2800包括至少一个处理器2820，用于实现或用于支持通信装置2800实现本申请实施例提供的方法中网络设备的功能。示例性地，处理器2820可以确定调度指示信息，具体参见方法示例中的详细描述，此处不做赘述。
通信装置2800还可以包括至少一个存储器2830，用于存储程序指令和/或数据。存储器2830和处理器2820耦合。本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连接，可以是电性，机械或其它的形式，用于装置、单元或模块之间的信息交互。处理器2820可能和存储器2830协同操作。处理器2820可能执行存储器2830中存储的程序指令。所述至少一个存储器中的至少一个可以包括于处理器中。
通信装置2800还可以包括通信接口2810，用于通过传输介质和其它设备进行通信，从而用于通信装置2800中的装置可以和其它设备进行通信。示例性地，该其它设备可以是终端。处理器2820可以利用通信接口2810收发数据。通信接口2810具体可以是收发器。
本申请实施例中不限定上述通信接口2810、处理器2820以及存储器2830之间的具体连接介质。本申请实施例在图28中以存储器2830、处理器2820以及通信接口2810之间通过总线2840连接，总线在图28中以粗线表示，其它部件之间的连接方式，仅是进行示意性说明，并不引以为限。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图28中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
在本申请实施例中，处理器2820可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件，可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。
在本申请实施例中，存储器2830可以是非易失性存储器，比如硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)等，还可以是易失性存储器(volatile memory)，例如随机存取存储器(random-access memory，RAM)。存储器是能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。本申请实施例中的存储器还可以是电路或者其它任意能够实现存储功能的装置，用于存储程序指令和/或数据。
如图29所示为本申请实施例提供的通信装置2900，其中，通信装置2900可以是终端设 备，能够实现本申请实施例提供的方法中终端设备的功能；通信装置2900也可以是能够支持终端实现本申请实施例提供的方法中终端的功能的装置。其中，该通信装置2900可以为芯片系统。本申请实施例中，芯片系统可以由芯片构成，也可以包含芯片和其他分立器件。
在硬件实现上，上述通信模块2702可以为收发器，收发器集成在通信装置2900中构成通信接口2910。
通信装置2900包括至少一个处理器2920，用于实现或用于支持通信装置2900实现本申请实施例提供的方法中终端的功能。示例性地，处理器2920可以根据调度指示信息在一个传输单元或多个传输单元进行传输，具体参见方法示例中的详细描述，此处不做赘述。
通信装置2900还可以包括至少一个存储器2930，用于存储程序指令和/或数据。存储器2930和处理器2920耦合。本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连接，可以是电性，机械或其它的形式，用于装置、单元或模块之间的信息交互。处理器2920可能和存储器2930协同操作。处理器2920可能执行存储器2930中存储的程序指令。所述至少一个存储器中的至少一个可以包括于处理器中。
通信装置2900还可以包括通信接口2910，用于通过传输介质和其它设备进行通信，从而用于装置2900中的装置可以和其它设备进行通信。示例性地，该其它设备可以是网络设备。处理器2920可以利用通信接口2910收发数据。通信接口2910具体可以是收发器。
本申请实施例中不限定上述通信接口2910、处理器2920以及存储器2930之间的具体连接介质。本申请实施例在图29中以存储器2930、处理器2920以及通信接口2910之间通过总线2940连接，总线在图29中以粗线表示，其它部件之间的连接方式，仅是进行示意性说明，并不引以为限。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图29中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
在本申请实施例中，处理器2920可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件，可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。
在本申请实施例中，存储器2930可以是非易失性存储器，比如硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)等，还可以是易失性存储器(volatile memory)，例如随机存取存储器(random-access memory，RAM)。存储器是能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。本申请实施例中的存储器还可以是电路或者其它任意能够实现存储功能的装置，用于存储程序指令和/或数据。
本申请实施例中通信装置为网络设备，该网络设备可以如图30所示，该网络设备可应用于如图1所示的系统中，执行上述方法实施例中网络设备的功能。网络设备300可包括一个或多个射频单元，如远端射频单元(remote radio unit,RRU)3010和一个或多个基带单元(baseband unit，BBU)(也可称为数字单元，digital unit，DU)3020。所述RRU 3010可以称为通信模块，与图26中的通信模块2602对应，可选地，该通信模块还可以称为收发机、收发电路、或者收发器等等，其可以包括至少一个天线3011和射频单元3012。所述RRU 3010部分主要用于射频信号的收发以及射频信号与基带信号的转换，例如用于向终端设备发送指示信息。所述BBU 3020部分主要用于进行基带处理，对基站进行控制等。所述RRU 3010 与BBU 3020可以是物理上设置在一起，也可以物理上分离设置的，即分布式基站。
所述BBU 3020为基站的控制中心，也可以称为处理模块，可以与图26中的处理模块2601对应，主要用于完成基带处理功能，如信道编码，复用，调制，扩频等等。例如所述BBU(处理模块)可以用于控制基站执行上述方法实施例中关于网络设备的操作流程，例如，生成上述配置信息等。
在一个示例中，所述BBU 3020可以由一个或多个单板构成，多个单板可以共同支持单一接入制式的无线接入网(如LTE网)，也可以分别支持不同接入制式的无线接入网(如LTE网，5G网或其他网)。所述BBU3020还包括存储器3021和处理器3022。所述存储器3021用以存储必要的指令和数据。所述处理器3022用于控制基站进行必要的动作，例如用于控制基站执行上述方法实施例中关于网络设备的操作流程。所述存储器3021和处理器3022可以服务于一个或多个单板。也就是说，可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储器和处理器。此外每个单板上还可以设置有必要的电路。
本申请实施例中通信装置为终端设备，该终端设备可以如图31所示，图31示出了一种简化的终端设备的结构示意图。便于理解和图示方便，图31中，终端以手机作为例子。如图31所示，终端设备包括处理器、存储器、射频电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对终端进行控制，执行软件程序，处理软件程序的数据等。存储器主要用于存储软件程序和数据。射频电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。需要说明的是，有些种类的终端可以不具有输入输出装置。
当需要发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。为便于说明，图31中仅示出了一个存储器和处理器。在实际的终端产品中，可以存在一个或多个处理器和一个或多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以是独立于处理器设置，也可以是与处理器集成在一起，本申请实施例对此不做限制。
作为一种可选的实现方式，处理器可以包括基带处理器和/或中央处理器，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进行控制，执行软件程序，处理软件程序的数据。图31中的处理器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单元中，由处理器执行软件程序以实现基带处理功能。
在本申请实施例中，可以将具有收发功能的天线和控制电路视为终端设备的收发单元，例如，用于支持终端设备执行如图4部分所述的接收功能和发送功能。将具有处理功能的处理器视为终端设备的处理单元。终端设备包括收发单元和处理单元。收发单元也可以称 为收发器、收发机、收发装置等。处理单元也可以称为处理器，处理单板，处理模块、处理装置等。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。收发单元有时也可以称为收发机、收发器、或收发电路等。接收单元有时也可以称为接收机、接收器、或接收电路等。发送单元有时也可以称为发射机、发射器或者发射电路等。
应理解，收发单元用于执行上述方法实施例中终端侧的发送操作和接收操作，处理单元用于执行上述方法实施例中终端设备上除了收发操作之外的其他操作。
例如，在一种实现方式中，收发单元用于执行图4所示的实施例中的步骤S31中终端侧的接收操作，和/或收发单元还用于执行本申请实施例中终端侧的其他收发步骤。处理单元，用于执行图4所示的实施例中的步骤S33，和/或处理单元还用于执行本申请实施例中终端侧的其他处理步骤。处理器可用于执行该存储器存储的指令，以控制收发单元接收信号和/或发送信号，完成上述方法实施例中终端设备的功能。作为一种实现方式，收发单元的功能可以考虑通过收发电路或者收发的专用芯片实现。
当该通信装置为芯片时，该芯片包括收发单元和处理单元。其中，收发单元可以是输入输出电路、通信接口；处理单元为该芯片上集成的处理器或者微处理器或者集成电路。
本实施例中的通信装置为终端设备时，可以参照图32所示的设备。作为一个例子，该设备可以完成类似于图30中处理器3020的功能。在图32中，该设备包括处理器3210，发送数据处理器3220，接收数据处理器3330。上述实施例中的处理模块2701可以是图32中的该处理器3210，并完成相应的功能。上述实施例中的收发模块2702可以是图32中的发送数据处理器3220，和/或接收数据处理器3230。虽然图32中示出了信道编码器、信道解码器，但是可以理解这些模块并不对本实施例构成限制性说明，仅是示意性的。
图33示出本实施例的另一种形式。处理装置3300中包括调制子系统、中央处理子系统、周边子系统等模块。本实施例中的通信装置可以作为其中的调制子系统。具体的，该调制子系统可以包括处理器3303，接口3304。其中处理器3303完成上述处理模块2701的功能，接口3304完成上述通信模块2702的功能。作为另一种变形，该调制子系统包括存储器3306、处理器3303及存储在存储器3306上并可在处理器上运行的程序，该处理器3303执行该程序时实现上述方法实施例中终端侧的方法。需要注意的是，所述存储器3306可以是非易失性的，也可以是易失性的，其位置可以位于调制子系统内部，也可以位于处理装置3300中，只要该存储器3406可以连接到所述处理器3303即可。
在一种可能的设计中，以通信装置2800为例，通信装置2800包括用于确定配置信息的部件(means)，以及用于发送配置信息的部件(means)。可以通过一个或多个处理器来实现所述生成配置信息的means以及发送调度指示信息的means的功能。例如可以通过一个或多个处理器生成所述配置信息，通过收发器、或输入/输出电路、或芯片的接口发送所述调度指示信息。所述配置信息可以参见上述方法实施例中的相关描述。
在一种可能的设计中，所述通信装置2800包括用于接收配置信息的部件(means)，以及用于根据该配置信息，传输数据的部件(means)。所述配置信息以及如何根据该配置信息调度终端设备和中继设备进行上下行传输数据可以参见上述方法实施例中的相关描述。例如可以通过收发器、或输入/输出电路、或芯片的接口接收所述配置信息，通过一个或多个处理器根据该配置信息调度终端设备和中继设备进行上下行传输数据。
可选的，处理器2801除了实现图4所示的实施例的方法，还可以实现其他功能。
在又一种可能的设计中，通信装置2800也可以包括电路，所述电路可以实现前述方法实施例中网络设备或终端的功能。
在又一种可能的设计中所述通信装置2800中可以包括一个或多个存储器，其上存有指令所述指令可在所述处理器上被运行，使得所述通信装置2800执行上述方法实施例中描述的方法。可选的，所述存储器中还可以存储有数据。可选的处理器中也可以存储指令和/或数据。例如，所述一个或多个存储器可以存储上述实施例中所描述的对应关系，或者上述实施例中所涉及的相关的参数或表格等。所述处理器和存储器可以单独设置，也可以集成在一起。
在又一种可能的设计中，所述通信装置2800还可以包括收发单元3012以及天线3011。所述处理器3022可以称为处理单元，对通信装置(终端或者基站)进行控制。所述收发单元3012可以称为收发机、收发电路、或者收发器等，用于通过天线3011实现通信装置的收发功能。
本申请还提供一种通信系统，其包括前述的一个或多个网络设备，和，一个或多个终端，以及中继设备。
应注意，本申请实施例中的处理器可以是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)。应注意，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例还提供了一种计算机可读介质，其上存储有计算机程序，该计算机程序被计算机执行时实现上述任一方法实施例所述的通信方法。
本申请实施例还提供了一种计算机程序产品，该计算机程序产品被计算机执行时实现上述任一方法实施例所述的通信方法。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(Digital Subscriber Line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，高密度数字视频光盘(Digital Video Disc，DVD))、或者半导体介质(例如，固态硬盘(Solid State Disk，SSD))等。
本申请实施例还提供了一种处理装置，包括处理器和接口；所述处理器，用于执行上述任一方法实施例所述的通信方法。
应理解，上述处理装置可以是一个芯片，所述处理器可以通过硬件来实现也可以通过软件来实现，当通过硬件实现时，该处理器可以是逻辑电路、集成电路等；当通过软件来实现时，该处理器可以是一个通用处理器，通过读取存储器中存储的软件代码来实现，改存储器可以集成在处理器中，可以位于所述处理器之外，独立存在。
应理解，说明书通篇中提到的“一个实施例”或“一实施例”意味着与实施例有关的特定特征、结构或特性包括在本申请的至少一个实施例中。因此，在整个说明书各处出现的“在一个实施例中”或“在一实施例中”未必一定指相同的实施例。此外，这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
另外，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
应理解，在本申请实施例中，“与A相应的B”表示B与A相关联，根据A可以确定B。但还应理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、计算机软件或者二者的结合来实现，为了清楚地说明硬件和软件的可互换性，在上述说明中已经按照功能一般性地描述了各示例的组成及步骤。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为了描述的方便和简洁，上述描述的系统、 装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口、装置或单元的间接耦合或通信连接，也可以是电的，机械的或其它的形式连接。
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申请实施例方案的目的。
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，也可以是两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到本申请可以用硬件实现，或固件实现，或它们的组合方式来实现。当使用软件实现时，可以将上述功能存储在计算机可读介质中或作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是计算机能够存取的任何可用介质。以此为例但不限于：计算机可读介质可以包括RAM、ROM、EEPROM、CD-ROM或其他光盘存储、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质。此外。任何连接可以适当的成为计算机可读介质。例如，如果软件是使用同轴电缆、光纤光缆、双绞线、数字用户线(DSL)或者诸如红外线、无线电和微波之类的无线技术从网站、服务器或者其他远程源传输的，那么同轴电缆、光纤光缆、双绞线、DSL或者诸如红外线、无线和微波之类的无线技术包括在所属介质的定影中。如本申请所使用的，盘(Disk)和碟(disc)包括压缩光碟(CD)、激光碟、光碟、数字通用光碟(DVD)、软盘和蓝光光碟，其中盘通常磁性的复制数据，而碟则用激光来光学的复制数据。上面的组合也应当包括在计算机可读介质的保护范围之内。
总之，以上所述仅为本申请技术方案的较佳实施例而已，并非用于限定本申请的保护范围。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (22)

  1. 一种通信方法，其特征在于，应用于包括中继设备的通信系统，所述方法包括：
    网络设备向终端设备发送配置信息，所述配置信息用于指示所述终端设备向中继设备发送第一上行信道的上行子帧，以及所述中继设备向所述网络设备发送第二上行信道的上行子帧；
    所述网络设备根据所述配信息，调度所述终端设备在子帧n1上向所述中继设备发送所述第一上行信道，并调度所述中继设备在子帧n1+k1上向所述网络设备发送所述第二上行信道；
    其中，所述子帧n1+K为所述网络设备向所述终端设备发送自动混合重传请求HARQ反馈所在的子帧，所述n1为正整数，所述k1和K均为大于1的整数，所述子帧n1+K与所述子帧n1+k1之间的时间差值能够保证所述网络设备正确接收且解码所述中继设备在子帧n1+k1上向所述网络设备发送的所述第二上行信道。
  2. 如权利要求1所述的方法，其特征在于，所述K与所述k1之间的差值大于或等于2。
  3. 如权利要求1所述的方法，其特征在于，网络设备向终端设备发送配置信息，包括：
    所述网络设备向所述终端设备发送消息MSG4，其中，所述MSG4携带所述配置信息；或者，
    所述网络设备向所述终端设备发送无线资源控制RRC连接重配消息，其中，所述RRC连接重配消息携带所述配置信息；或者，
    所述网络设备向所述终端设备发送系统消息，其中，所述系统消息携带所述配置信息。
  4. 如权利要求1～3任一所述的方法，其特征在于，所述配置信息包括时分复用TDM上下行子帧配比，其中：
    在所述TDM上下行子帧配比0中，n1为1或4时，k1为3或4；n1为2或5时，k1为2或3；n1为3或6时，k1为2；
    在所述TDM上下行子帧配比1中，n1为1或4时，k1为2、3或4；n1为2或5时，k1为2或3；
    在所述TDM上下行子帧配比2中，n1为1或4时，k1为2、3或4；
    在所述TDM上下行子帧配比3中，n1为1时，k1为3或4；n1为2或3时，k1为2、3或4；
    在所述TDM上下行子帧配比4中，n1为1或2时，k1为2、3或4；
    在所述TDM上下行子帧配比5中，n1为1时，k1为2、3或4；
    在所述TDM上下行子帧配比6中，n1为1时，k1为3或4；n1为2或5时，k1为2或3；n1为3时，k1为2；n1为4时，k1为2、3或4。
  5. 如权利要求1～3任一所述的方法，其特征在于，所述配置信息包括时分双工TDD上下行子帧配比，其中：
    在所述TDD上下行子帧配比1中，n1为1或4时，k1为2；n1为2或5时，k1为2或3；
    在所述TDD上下行子帧配比2中，n1为1或4时，k1为2、3或4；
    在所述TDD上下行子帧配比3中，n1为1时，k1为3或4；n1为2或3时，k1为2、3或4；
    在所述TDD上下行子帧配比4中，n1为1或2时，k1为2、3或4；
    在所述TDD上下行子帧配比5中，n1为1时，k1为2、3或4。
  6. 如权利要求1～3任一所述的方法，其特征在于，还包括：
    所述网络设备根据所述配置信息，调度所述终端设备在子帧n2上向所述中继设备发送下行应答响应ACK反馈，并调度所述中继设备在子帧n2+k2上向所述网络设备发送第三上行信道。
  7. 如权利要求6所述的方法，其特征在于，所述配置信息包括TDM上下行子帧配比，其中：
    在所述TDM上下行子帧配比0中，n2为1或4时，k2为3，n2为2、3、5和6时，k2为2；
    在所述TDM上下行子帧配比1中，n2为1、2、4和5时，k2为2；
    在所述TDM上下行子帧配比2中，n2为1或4时，k2为2；
    在所述TDM上下行子帧配比3中，n2为1时，k2为3；n2为2和3时，k2为2；
    在所述TDM上下行子帧配比4中，n2为1或2时，k2为2；
    在所述TDM上下行子帧配比5中，n2为1时，k2为2；
    在所述TDM上下行子帧配比6中，n2为1时，k2为3；n2为2、3、4和5时，k2为2。
  8. 如权利要求6所述的方法，其特征在于，所述配置信息包括TDD上下行子帧配比，其中：
    在所述TDD上下行子帧配比1中，n2为1、2、4或5时，k2为2；
    在所述TDD上下行子帧配比2中，n2为1或2时，k2为2；
    在所述TDD上下行子帧配比3中，n2为1时，k2为3，n2为2和3时，k2为2；
    在所述TDD上下行子帧配比4中，n2为1或2时，k2为2；
    在所述TDD上下行子帧配比5中，n2为1时，k2为2。
  9. 一种通信方法，其特征在于，应用于包括中继设备的通信系统，所述方法包括：
    终端设备接收来自网络设备的配置信息，所述配置信息用于指示所述终端设备向中继设备发送第一上行信道的上行子帧，以及中继设备向所述网络设备发送第二上行信道的上行子帧；
    所述终端设备根据所述配置信息在子帧n1上向所述中继设备发送所述第一上行信道；
    其中，所述中继设备在子帧n1+k1上向所述网络设备发送所述第二上行信道，所述子帧n1+K为所述网络设备向所述终端设备发送自动混合重传请求HARQ反馈所在的子帧，所述n1为正整数，所述k1和K均为大于1的整数，所述子帧n1+K与所述子帧n1+k1之间的时间差值能够保证所述网络设备正确接收且解码所述中继设备在子帧n1+k1上向所述网络设备发送的所述第二上行信道。
  10. 如权利要求9所述的方法，其特征在于，所述K与所述k1之间的差值大于或等于2。
  11. 如权利要求9或10所述的方法，其特征在于，终端设备接收来自网络设备的配置信息，包括：
    所述终端设备接收来自所述网络设备的消息MSG4，其中，所述MSG4携带所述配置信息；或者，
    所述终端设备接收来自所述网络设备RRC连接重配消息，其中，所述RRC连接重配消息携带所述配置信息；或者，
    所述终端设备接收来自所述网络设备系统消息，其中，所述系统消息携带所述配置信息。
  12. 如权利要求9～10任一所述的方法，其特征在于，所述配置信息包括时分复用TDM上下行子帧配比，其中：
    在所述TDM上下行子帧配比0中，n1为1或4时，k1为3或4；n1为2或5对应k1为2或3；n1为3或6时，k1为2；
    在所述TDM上下行子帧配比1中，n1为1或4时，k1为2、3或4；n1为2或5时，k1为2或3；
    在所述TDM上下行子帧配比2中，n1为1或4时，k1为2、3或4；
    在所述TDM上下行子帧配比3中，n1为1时，k1为3或4；n1为2或3时，k1为2、3或4；
    在所述TDM上下行子帧配比4中，n1为1或2时，k1为2、3或4；
    在所述TDM上下行子帧配比5中，n1为1时，k1为2、3或4；
    在所述TDM上下行子帧配比6中，n1为1时，k1为3或4；n1为2或5时，k1为2或3；n1为3时，k1为2；n1为4时，k1为2、3或4。
  13. 如权利要求9～10任一所述的方法，其特征在于，所述配置信息包括时分双工TDD上下行子帧配比，其中：
    在所述TDD上下行子帧配比1中，n1为1或4时，k1为2；n1为2或5时，k1为2或3；
    在所述TDD上下行子帧配比2中，n1为1或4时，k1为2、3或4；
    在所述TDD上下行子帧配比3中，n1为1时，k1为3或4；n1为2或3时，k1为2、3或4；
    在所述TDD上下行子帧配比4中，n1为1或2时，k1为2、3或4；
    在所述TDD上下行子帧配比5中，n1为1时，k1为2、3或4。
  14. 如权利要求9～10任一所述的方法，其特征在于，还包括：
    所述终端设备根据所述配置信息在子帧n2上向所述中继设备发送下行应答响应ACK反馈，其中，所述中继设备在子帧n2+k2上向所述网络设备发送第三上行信道。
  15. 如权利要求14所述的方法，其特征在于，所述配置信息包括TDM上下行子帧配比，其中：
    在所述TDM上下行子帧配比0中，n2为1或4时，k2为3，n2为2、3、5和6时，k2为2；
    在所述TDM上下行子帧配比1中，n2为1、2、4或5时，k2为2；
    在所述TDM上下行子帧配比2中，n2为1或4时，k2为2；
    在所述TDM上下行子帧配比3中，n2为1时，k2为3；n2为2或3时，k2为2；
    在所述TDM上下行子帧配比4中，n2为1或2时，k2为2；
    在所述TDM上下行子帧配比5中，n2为1时，k2为2；
    在所述TDM上下行子帧配比6中，n2为1时，k2为3；n2为2、3、4或5时，k2为2。
  16. 如权利要求14所述的方法，其特征在于，所述配置信息包括TDD上下行子帧配比，其中：
    在所述TDD上下行子帧配比1中，n2为1、2、4和5时，k2为2；
    在所述TDD上下行子帧配比2中，n2为1或2时，k2为2；
    在所述TDD上下行子帧配比3中，n2为1时，k2为3，n2为2和3时，k2为2；
    在所述TDD上下行子帧配比4中，n2为1或2时，k2为2；
    在所述TDD上下行子帧配比5中，n2为1时，k2为2。
  17. 一种通信装置，其特征在于，包括：
    收发单元，用于向终端设备发送配置信息，所述配置信息用于指示所述终端设备向中继设备发送第一上行信道的上行子帧，以及所述中继设备向所述网络设备发送第二上行信道的上行子帧；
    处理单元，用于所述网络设备根据所述配信息，调度所述终端设备在子帧n1上向所述中继设备发送所述第一上行信道，并调度所述中继设备在子帧n1+k1上向所述网络设备发送所述第二上行信道；
    其中，所述子帧n1+K为所述网络设备向所述终端设备发送自动混合重传请求HARQ反馈所在的子帧，所述n1为正整数，所述k1和K均为大于1的整数，所述子帧n1+K与所述子帧n1+k1之间的时间差值能够保证所述网络设备正确接收且解码所述中继设备在子帧n1+k1上向所述网络设备发送的所述第二上行信道。
  18. 一种通信装置，其特征在于，包括：
    收发单元，用于接收来自网络设备的配置信息，所述配置信息用于指示所述终端设备向中继设备发送第一上行信道的上行子帧，以及中继设备向所述网络设备发送第二上行信道的上行子帧；
    处理单元，具体用于根据所述配置信息在子帧n1上向所述中继设备发送所述第一上行信道；
    其中，所述中继设备在子帧n1+k1上向所述网络设备发送所述第二上行信道，所述子帧n1+K为所述网络设备向所述终端设备发送自动混合重传请求HARQ反馈所在的子帧，所述n1为正整数，所述k1和K均为大于1的整数，所述子帧n1+K与所述子帧n1+k1之间的时间差值能够保证所述网络设备正确接收且解码所述中继设备在子帧n1+k1上向所述网络设备发送的所述第二上行信道。
  19. 一种通信装置，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程序，当所述程序被所述处理器执行时，使得装置以执行如权利要求1～8或9～16任一项所述的方法。
  20. 一种存储介质，其上存储有计算机程序或指令，其特征在于，所述计算机程序或指令被执行时使得计算机执行如权利要求1～8或9～16任一项所述的方法。
  21. 一种芯片系统，其特征在于，包括：处理器，用于执行如权利要求1～8或9～16中任一项所述的方法。
  22. 一种通信系统，其特征在于，包括：中继设备，以及用于执行如权利要求1～8或9～16中任一项所述的方法的通信装置。
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CN101882985A (zh) * 2009-05-06 2010-11-10 中兴通讯股份有限公司 混合自动重传请求发送的指示方法及其基站
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