WO2020087498A1 - Procédé et appareil de transmission de signaux - Google Patents

Procédé et appareil de transmission de signaux Download PDF

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Publication number
WO2020087498A1
WO2020087498A1 PCT/CN2018/113677 CN2018113677W WO2020087498A1 WO 2020087498 A1 WO2020087498 A1 WO 2020087498A1 CN 2018113677 W CN2018113677 W CN 2018113677W WO 2020087498 A1 WO2020087498 A1 WO 2020087498A1
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WIPO (PCT)
Prior art keywords
trp
signal
information
ack
nack
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PCT/CN2018/113677
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English (en)
Chinese (zh)
Inventor
孙欢
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上海诺基亚贝尔股份有限公司
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Application filed by 上海诺基亚贝尔股份有限公司 filed Critical 上海诺基亚贝尔股份有限公司
Priority to PCT/CN2018/113677 priority Critical patent/WO2020087498A1/fr
Priority to CN201880098576.2A priority patent/CN112805946A/zh
Publication of WO2020087498A1 publication Critical patent/WO2020087498A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals

Definitions

  • the invention relates to a signal transmission method and device, belonging to the technical field of communication standards.
  • downlink transmission refers to sending a signal from a base station to a user equipment (UE), and the base station transmits downlink data in a physical downlink shared channel (PDSCH) or sends downlink control information in a physical downlink control channel (PDCCH).
  • Uplink transmission refers to sending a signal from a UE to a base station, the UE transmits uplink data in a physical uplink shared channel (PUSCH), or sends uplink control information in a physical uplink control channel (PUCCH).
  • the base station can dynamically schedule the PDSCH transmission and PUSCH transmission of the UE through the PDCCH.
  • up to two PDCCHs in the same frequency band are currently supported to independently schedule their PDSCHs to transmit data to a user.
  • the first TRP sends the first One PDSCH transmission information to the UE
  • the second TRP sends the second PDSCH transmission information to the UE
  • the UE decodes the first PDSCH transmission information and the second PDSCH transmission information through a specific algorithm, and if the PDSCH transmission information is successfully received, an ACK is returned to Corresponding TRP, otherwise, NACK is fed back to the corresponding TRP.
  • TRP uses ACK / NACK to determine new data transmission or old data retransmission in the next downlink transmission slot. This means that the UE needs to send ACK / NACK information to two TRPs at the same time, which may cause some pressure on HARQ process and / or soft buffer management. In addition, sending too much ACK / NACK information in the uplink will increase Uplink overhead, which complicates user processing and wastes power.
  • One of the technical problems solved by the present invention is how to reduce the uplink overhead.
  • a signal transmission method including:
  • the predetermined rule is used to indicate that the TRP receiving the first signal according to the The first signal sends a second signal to another TRP.
  • a signal transmission method including:
  • a second signal is sent to another TRP according to a predetermined rule.
  • a user equipment for signal transmission including:
  • the first signal sends a second signal to another device of the TRP.
  • a base station for signal transmission including:
  • a device for sending a second signal to another TRP according to a predetermined rule according to the first signal is a device for sending a second signal to another TRP according to a predetermined rule according to the first signal.
  • the UE only needs to feed back the first signal to one of the TRPs for the transmission information of the two TRPs, and the TRP sends the second signal to the other TRP according to the first signal according to a predetermined rule. That is, two PDSCH transmissions can be supported, but there is only one ACK / NACK feedback, which effectively avoids the UE from sending ACK / NACK information to the two TRPs separately, thereby reducing uplink overhead and saving the UE's transmit power.
  • FIG. 1 shows a schematic diagram of signal transmission in which two TRPs jointly send downlink data to one UE in the prior art.
  • FIG. 2 shows a flowchart of a signal transmission method according to an embodiment of the present invention.
  • FIG. 3 shows a schematic diagram of the HARQ detection window of each TRP in the signal transmission method according to an embodiment of the present invention.
  • FIG. 4 shows a schematic diagram indicating identification information of each HARQ in a signal transmission method according to an embodiment of the present invention.
  • FIG. 5 shows a flowchart of a signal transmission method according to another embodiment of the present invention.
  • FIG. 6 shows a schematic diagram of a signal transmission method in a case where UL resources are scheduled for two TRPs based on gNB at the first embodiment of the present invention.
  • FIG. 7 shows a schematic diagram of signal transmission in which two TRPs jointly send downlink data to one UE in Embodiment 1 of the present invention.
  • FIG. 8 shows a schematic diagram of a signal transmission method based on gNB scheduling UL resources for two TRPs at different times according to Embodiment 2 of the present invention.
  • FIG. 9 shows a schematic diagram of signal transmission in which the first TRP receives the first signal and forwards the second signal to the second TRP in Embodiment 2 of the present invention.
  • FIG. 10 shows a schematic diagram of the second signal received by the second TRP in the second embodiment of the present invention.
  • FIG. 11 shows a schematic diagram of a signal transmission method in a case where the gNB of Embodiment 3 of the present invention schedules UL feedback resources for fixed TRP.
  • FIG. 12 shows a schematic diagram of signal transmission in which two TRPs jointly send downlink data to one UE in Embodiment 3 of the present invention.
  • FIG. 13 shows a specific schematic diagram of signal transmission in which two TRPs jointly send downlink data to one UE in Embodiment 3 of the present invention.
  • FIG. 14 shows a block diagram of a user equipment for signal transmission according to an embodiment of the present invention.
  • FIG. 15 shows a block diagram of a base station for signal transmission according to an embodiment of the present invention.
  • User equipment is a type of terminal equipment, which may be a mobile terminal equipment or a non-mobile terminal equipment.
  • the device is mainly used to receive or send business data.
  • User equipment can be distributed in the network.
  • User equipment has different names in different networks, such as: terminal, mobile station, subscriber unit, station, cellular phone, personal digital assistant, wireless modem, wireless communication device, handheld device, laptop Computers, cordless phones, wireless local loop stations, car terminals, drone equipment, smart homes, Internet of Things equipment, etc.
  • the user equipment may communicate with one or more core networks via a radio access network (RAN) (access part of a wireless communication network), for example, to exchange voice and / or data with the wireless access network.
  • RAN radio access network
  • Base station (BS) equipment also known as base station, is a device deployed in a wireless access network to provide wireless communication functions.
  • equipment that provides base station functions in a 2G network includes a base transceiver station (BTS) and base station controller (BSC)
  • equipment that provides base station functions in a 3G network includes a Node B (NodeB) and wireless Network controller (radio network controller, RNC)
  • equipment that provides base station function in 4G network includes evolved Node B (eNB)
  • AP access point
  • the equipment that provides base station functions in 5G New Radio includes a Node B (gNB) that continues to evolve, a transmission and reception point (TRP), a transmission point (TP), or a relay (relay) etc.
  • Node B, TRP and TP may be devices that include baseband processing and radio frequency parts, and TRP and TP may also be radio frequency units (radio unit, RU) or remote radio units (remote radio unit, RRU).
  • TRP is a commonly used name in NG
  • TP is a commonly used name in LTE system.
  • the PDCCH carries DCI (Downlink Control Information), which contains resource allocation and control information on one or more UEs.
  • DCI Downlink Control Information
  • the UE needs to demodulate the DCI in the PDCCH first, and then demodulate the UE's own at the corresponding resource location PDSCH (including broadcast messages, paging or UE data, etc.), PDCCH contains UL (UpLink) authorization to indicate the resources used by the UE for uplink data transmission.
  • the PDSCH is used to transmit downlink data and system information.
  • a transport block (TB) may require more than one subframe to transmit according to the modulation and coding strategy (MCS) used. Therefore, in the downlink allocation received in the PDCCH An indication of the number of subframes corresponding to a TB and the number of retransmissions will be included.
  • MCS modulation and coding strategy
  • the base station by transmitting UL scheduling information to the UE, the base station informs the specific UE of the time-frequency domain, coding scheme, data size, HARQ information, etc. in which it can transmit data.
  • FIG. 2 is a flowchart of a signal transmission method according to an embodiment of the present invention. The method is performed by a UE.
  • the signal transmission method described in this embodiment includes the following steps:
  • S200 Receive first information and second information sent by two TRPs respectively;
  • the two TRPs are a first TRP and a second TRP, respectively.
  • the first TRP sends the first PDSCH transmission information to the UE
  • the second TRP sends the second PDSCH transmission information to the UE.
  • One PDSCH transmission information and the second PDSCH transmission information are decoded.
  • This application does not specifically limit specific algorithms. Specific algorithms include, but are not limited to, each PDSCH transmission information has an independent decoding algorithm or a continuous interference cancellation algorithm (SIC). Sequence PDSCH decoding.
  • step S200 the UE receives the first PDSCH transmission information sent by the first TRP and the second PDSCH transmission information sent by the second TRP.
  • the first signal may include but is not limited to:
  • step S110 may include:
  • the UE returns a first signal to the first TRP according to the decoding results of the first information and the second information, so that the first TRP sends the same second signal as the first signal to the second TRP;
  • the UE returns the first signal to the second TRP according to the decoding results of the first information and the second information, so that the second TRP sends a second signal opposite to the first signal to the first TRP.
  • it may include:
  • an ACK is returned to the first TRP, so that the first TRP sends the same second signal ACK as the ACK to the second TRP;
  • an ACK is returned to the second TRP, so that the second TRP sends a second signal NACK opposite to the ACK to the first TRP;
  • a NACK is returned to the second TRP, so that the second TRP sends a second signal ACK opposite to the NACK to the first TRP.
  • step S110 may include:
  • the UE returns a first signal to the first TRP according to the decoding results of the first information and the second information, so that the first TRP sends a second signal that is the same as or opposite to the first signal to the second according to the instruction information TRP.
  • it may include:
  • both the first information and the second information are successfully decoded, return ACK and first indication information to the first TRP, so that the first TRP sends the same second signal ACK as the ACK to the second TRP; or
  • the ACK and the second indication information are returned to the first TRP, so that the first TRP sends a second signal NACK opposite to the ACK to the second TRP;
  • NACK and second indication information are returned to the first TRP, so that the first TRP sends a second signal ACK opposite to the NACK to the second TRP;
  • the ACK and the second indication information are returned to the first TRP, so that the first TRP sends the same second signal ACK as the ACK to the second TRP.
  • Step S210 the predetermined rule may further include:
  • the detection windows of the first signal and the second signal are pre-configured for each TRP.
  • the detection window of the first signal and the second signal should be pre-configured for each TRP, as shown in FIG. 3, when the UE sends the first signal to The first TRP, in the case where the first TRP sends the second signal to the second TRP, before rescheduling the retransmission, the second TRP receives from the first TRP through the gNB wait window (that is, the pre-configured HARQ signal detection window is T0)
  • the second signal sent, the pre-configured signal detection window is determined by the requirements of backhaul delay and UE service delay.
  • the first signal and the second signal may include identification information indicating each HARQ, the identification The information may include but is not limited to time information or index information of each HARQ, and its purpose is to enable the TRP to correctly map out the transmission data corresponding to the first signal and the second signal it receives.
  • two TRPs can share user information through the backhaul.
  • the UE selects the target TRP and uses its related configuration to send ACK / NACK in the uplink, although the two TPRs Both monitor the UE uplink control channel, but only one TRP can decode ACK / NACK information through its configured information.
  • This embodiment can support two PDSCH transmissions, and only one ACK / NACK feedback is effective, which can not only reduce the uplink overhead, but also save the transmission power of the UE.
  • the predetermined rules can be dynamically or semi-dynamically configured according to the conditions of the user link, and supplemented by traditional interaction methods.
  • each link parameter can flexibly select ACK / NACK feedback.
  • different power control parameters for each link can be used to optimize uplink performance.
  • This embodiment can also be used for ACK / NACK and retransmission processes based on different levels of code blocks (CBGs).
  • CBGs code blocks
  • the two TRPs can be configured for CBG transmission, and XOR can be used for feedback based on similar principles.
  • a preferred solution is to select TRP based on the maximum ACK in CBG.
  • FIG. 5 is a flowchart of a signal transmission method according to an embodiment of the present invention, the method is completed by TRP.
  • the signal transmission method in this embodiment includes the following steps:
  • S510 Send a second signal to another TRP according to the first signal according to a predetermined rule.
  • step S510 may include:
  • a second signal opposite to the first signal is sent to another said TRP.
  • step S510 may include:
  • this embodiment further includes:
  • the detection windows of the first signal and the second signal are pre-configured. As shown in FIG. 3, when the UE sends the first signal to the first TRP and the first TRP sends the second signal to the second TRP, the second TRP passes the gNB waiting window (that is, pre-configured The HARQ signal detection window is T0) Receive the second signal sent from the first TRP, the pre-configured signal detection window is determined by the requirements of the backhaul delay and the UE service delay.
  • this embodiment further includes:
  • the first signal and / or the second signal include identification information indicating HARQ
  • a signal corresponding to each HARQ is determined according to the identification information.
  • the first signal and the second signal may include identification information indicating each HARQ
  • the identification information may include However, it is not limited to the time information or index information of each HARQ, and its purpose is to enable the TRP to correctly map out the transmission data corresponding to the first signal and the second signal it receives.
  • two TRPs can share user information through the backhaul.
  • the UE selects the target TRP and uses its related configuration to send ACK / NACK in the uplink, although the two TPRs Both monitor the UE uplink control channel, but only one TRP can decode ACK / NACK information through its configured information.
  • This embodiment can support two PDSCH transmissions, and only one ACK / NACK feedback is effective, which can not only reduce the uplink overhead, but also save the transmission power of the UE.
  • the predetermined rules can be dynamically or semi-dynamically configured according to the conditions of the user link, and supplemented by traditional interaction methods.
  • each link parameter can flexibly select ACK / NACK feedback.
  • different power control parameters for each link can be used to optimize uplink performance.
  • This embodiment can also be used for ACK / NACK and retransmission processes based on different levels of code blocks (CBGs).
  • CBGs code blocks
  • the two TRPs can be configured for CBG transmission, and XOR can be used for feedback based on similar principles.
  • a preferred solution is to select TRP based on the maximum ACK in CBG.
  • the UE when gNB schedules UL resources for two TRPs at the same time, that is, both TRPs expect UL feedback, the UE can send the first signal to a beam using effective transmit power to the According to the TRP determined according to the predetermined rule, while the UL transmission of another TRP is muted, the processing procedure for ACK or NACK according to the predetermined rule is shown in FIG. 7, and the signal transmission method includes the following steps:
  • the UE and the base station determine that the predetermined rule is that the first TRP will execute an ACK / NACK signal. Operation, the second TRP will execute after receiving the ACK / NACK signal operating.
  • the schematic diagram of the TRP receiving the first signal sending the second signal to another TRP As shown in Table 2, the schematic diagram of the TRP receiving the first signal sending the second signal to another TRP.
  • the first TRP (Selected TRP for A / N feedback) will be executed after receiving the ACK / NACK signal (Feedback Content)
  • the operation gets the second signal (Forward Content) and sends it to the second TRP (Forward TRP), or the second TRP (Selected TRP for A / N feedback) will receive the ACK / NACK signal (Feedback Content) and execute The operation obtains the second signal (Forward Content) and sends it to the first TRP (Forward TRP).
  • the UE receives the first PDSCH transmission information sent by the first TRP and the second PDSCH transmission information sent by the second TRP, and executes one step in S620-S650 according to the decoding result.
  • the UE sends an ACK to the first TRP, and then, the first TRP sends an ACK to the second TRP.
  • the first TRP is performed according to the ACK sent by the UE
  • the operation gets an ACK and sends it to the second TRP.
  • the UE When decoding of both PDSCH transmission information fails, the UE sends a NACK to the first TRP, and then, the first TRP sends a NACK to the second TRP.
  • the first TRP is performed according to the NACK sent by the UE
  • the operation gets NACK and sends it to the second TRP.
  • the UE sends a NACK to the second TRP, and then, the second TRP sends an ACK to the first TRP.
  • the second TRP is performed according to the NACK sent by the UE
  • the operation gets an ACK and sends it to the first TRP.
  • the UE sends an ACK to the second TRP, and then, the second TRP sends a NACK to the first TRP.
  • the second TRP is performed according to the ACK sent by the UE
  • the operation gets NACK and sends it to the first TRP.
  • the first TRP when gNB schedules UL resources for two TRPs at different times (time is greater than the backhaul delay), that is, the first TRP expects UL feedback (the UE may or may not send ACK / NACK), if the first TRP receives feedback, it will notify the second TRP about HARQ feedback; if the first TRP does not receive feedback, the second TRP will detect HARQ feedback from the UE and notify the first TRP. If the second TRP receives UL feedback in advance, the second TRP notifies the first TRP and ignores / discards the feedback from the first TRP.
  • the signal transmission method includes the following steps:
  • the UE and the base station determine a predetermined rule.
  • the predetermined rule is that the UL resource in the time slot t2 is allocated to the first TRP for ACK / NACK detection, and the UL resource in the time slot t3 is allocated to the second TRP for ACK / NACK detection.
  • the time between the allocated two time slots (t2 and t3) is greater than the backhaul delay.
  • the first TRP will be executed after receiving the ACK / NACK signal Operation
  • the second TRP will execute after receiving the ACK / NACK signal operating.
  • the four cases according to the decoding results of the two PDSCH transmission information are also applicable to Table 1 and Table 2.
  • the UE receives the first PDSCH transmission information sent by the first TRP and the second PDSCH transmission information sent by the second TRP, and performs a step in S820-S850 according to the decoding result, where the UE is in the time slot t2 in S820-S830
  • a schematic diagram of sending ACK / NACK to the first TRP, the first TRP sending ACK / NACK to the second TRP in the time slot t3 is shown in FIG. 9, and the UE sends ACK / NACK to the second TRP in the time slot t3 in S840-S850
  • the schematic diagram is shown in Figure 10.
  • the UE sends an ACK to the first TRP in the time slot t2, and then, the first TRP sends an ACK to the second TRP.
  • the first TRP is performed according to the ACK sent by the UE
  • the operation gets an ACK and sends it to the second TRP.
  • the UE When decoding of both PDSCH transmission information fails, the UE sends a NACK to the first TRP in the time slot t2, and then, the first TRP sends a NACK to the second TRP.
  • the first TRP is performed according to the NACK sent by the UE
  • the operation gets NACK and sends it to the second TRP.
  • the UE sends a NACK to the second TRP in time slot t3, and then, the second TRP sends an ACK to the first TRP.
  • the first TRP will not receive the ACK / NACK sent by the UE in the pre-allocated uplink resources, and the second TRP cannot receive its forwarded feedback from the first TRP until time slot t3.
  • the second TRP of slot t3 will use its pre-allocated UL resources to detect HARQ feedback from the UE, and then the second TRP will be executed according to the NACK sent by the UE The operation gets an ACK and sends it to the first TRP.
  • the UE sends an ACK to the second TRP, and then, the second TRP sends a NACK to the first TRP.
  • the second TRP is performed according to the ACK sent by the UE
  • the operation gets NACK and sends it to the first TRP.
  • the first TRP and the second TRP for UL feedback are selected based on the CQI feedback, so that a TRP with good link quality is selected as the first TRP.
  • the first TRP is a fixed TRP, that is, the UE sends only the first signal to the first TRP.
  • the first TRP sends a second signal to the second TRP according to the first signal.
  • the UE may use different scrambling sequences (a unique scrambling sequence for a given TRP) or some other distinguishing method to indicate implicit information (that is, indication information) for decoding HARQ feedback.
  • the signal transmission method includes the following step:
  • the UE and the base station determine a predetermined rule, which is any combination of ACK and indication information or a combination of NACK and indication information.
  • the first indication information (RS # 1) indicates that both PDSCH transmission information are successfully decoded Or both decoding failed; the second indication information (RS # 2) indicates that one of the two PDSCH transmission information was successfully decoded and the other failed.
  • the first TRP will be executed after receiving the ACK / NACK signal
  • the operation is sent to the second TRP and will be executed when the ACK / NACK signal is received Operates as a feedback signal received by the first TRP.
  • the first TRP executes the received ACK / NACK (Feedback In TRP # 1) signal according to the first indication information (RS # 1)
  • the operation obtains the second signal (A / N For TRP # 2) and sends it to the second TRP, or the first TRP executes the received ACK / NACK (Feedback In TRP # 1) signal according to the second indication information (RS # 2)
  • the operation gets the first TRP's own feedback signal (A / N for TRP # 1), and the first TRP executes the received ACK / NACK (Feedback In TRP # 1) signal according to the second instruction information (RS # 2)
  • the operation obtains the second signal (A / N For TRP # 2) and sends it to the second TRP.
  • the UE receives the first PDSCH transmission information sent by the first TRP and the second PDSCH transmission information sent by the second TRP, and performs one step in S1120-S1150 according to the decoding result.
  • the UE sends an ACK and first indication information to the first TRP, and then, the first TRP sends an ACK to the second TRP.
  • the first TRP executes the ACK sent by the UE according to the first indication information
  • the operation gets an ACK and sends it to the second TRP.
  • the UE When decoding of both PDSCH transmission information fails, the UE sends a NACK and first indication information to the first TRP, and then, the first TRP sends a NACK to the second TRP.
  • the first TRP executes the NACK sent by the UE according to the first indication information
  • the operation gets NACK and sends it to the second TRP.
  • the UE sends a NACK and second indication information to the first TRP, and then, the first TRP sends a NACK to the second TRP.
  • the first TRP executes the NACK sent by the UE according to the second indication information
  • the operation gets a NACK and sends it to the second TRP.
  • the first TRP executes the NACK sent by the UE according to the second indication information.
  • the operation obtains ACK as the feedback signal of the first TRP.
  • the UE sends an ACK and second indication information to the first TRP, and then, the first TRP sends an ACK to the second TRP.
  • the first TRP executes the ACK sent by the UE according to the second indication information
  • the operation gets an ACK and sends it to the second TRP.
  • the first TRP executes the ACK sent by the UE according to the second indication information.
  • the operation obtains NACK as the feedback signal of the first TRP.
  • FIG. 14 shows a user equipment for signal transmission according to an embodiment of the present invention, including:
  • An apparatus (hereinafter referred to as a "first receiving unit") 1400 for respectively receiving first information and second information sent by two TRPs;
  • the first signal sends a second signal to another TRP device (hereinafter referred to as "transmission unit") 1410;
  • the sending unit 1410 includes:
  • the sending unit 1410 includes:
  • the ACK and the second indication information are returned to the first TRP, so that the first TRP sends a second signal NACK opposite to the ACK to the second TRP Device;
  • NACK and second indication information are returned to the first TRP, so that the first TRP sends a second signal ACK opposite to the NACK to the second TRP Device;
  • ACK and second indication information are returned to the first TRP, so that the first TRP sends the same second signal ACK as the ACK to the second TRP installation.
  • FIG. 15 shows a base station for signal transmission according to an embodiment of the present invention, including:
  • a device 1500 for receiving a first signal sent by the UE according to the received decoding results of the first information and the second information sent by the two TRPs according to a predetermined rule hereinafter referred to as "second receiving unit" 1500;
  • a device 1510 for sending a second signal to another TRP according to a predetermined rule according to the first signal (hereinafter referred to as "forwarding unit").
  • the forwarding unit 1510 includes:
  • a device for sending a second signal opposite to the first signal to another said TRP is a device for sending a second signal opposite to the first signal to another said TRP.
  • the forwarding unit 1510 includes:
  • a device for sending a second signal opposite to the first signal to another TRP according to second indication information A device for sending a second signal opposite to the first signal to another TRP according to second indication information.
  • the base station further includes:
  • a device for pre-configuring the detection windows of the first signal and the second signal is
  • the base station further includes:
  • two TRPs can share user information through the backhaul.
  • the UE selects the target TRP and uses its related configuration to send ACK / NACK in the uplink, although both
  • Each TPR monitors the UE's uplink control channel, but only one TRP can decode ACK / NACK information through its configured information.
  • This embodiment can support two PDSCH transmissions, and only one ACK / NACK feedback is effective, which can not only reduce the uplink overhead, but also save the transmission power of the UE.
  • the predetermined rules can be dynamically or semi-dynamically configured according to the conditions of the user link, and supplemented by traditional interaction methods.
  • each link parameter can flexibly select ACK / NACK feedback.
  • different power control parameters for each link can be used to optimize uplink performance.
  • This embodiment can also be used for ACK / NACK and retransmission processes based on different levels of code blocks (CBGs).
  • CBGs code blocks
  • the two TRPs can be configured for CBG transmission, and XOR can be used for feedback based on similar principles.
  • a preferred solution is to select TRP based on the maximum ACK in CBG.
  • the present invention may be implemented in software and / or a combination of software and hardware.
  • it may be implemented by an application specific integrated circuit (ASIC), a general purpose computer, or any other similar hardware device.
  • the software program of the present invention may be executed by a processor to implement the steps or functions described above.
  • the software program of the present invention (including related data structures) can be stored in a computer-readable recording medium, such as a RAM memory, a magnetic or optical drive or a floppy disk, and the like.
  • some steps or functions of the present invention may be implemented by hardware, for example, as a circuit that cooperates with a processor to perform various steps or functions.
  • a part of the present invention can be applied as a computer program product, such as computer program instructions, and when it is executed by a computer, the method and / or technical solution according to the present invention can be invoked or provided through the operation of the computer.
  • the program instructions for invoking the method of the present invention may be stored in a fixed or removable recording medium, and / or transmitted through a data stream in a broadcast or other signal-bearing medium, and / or stored in accordance with The program instructions run in the working memory of the computer device.
  • an embodiment according to the present invention includes an apparatus including a memory for storing computer program instructions and a processor for executing program instructions, wherein, when the computer program instructions are executed by the processor, trigger
  • the operation of the device is based on the aforementioned methods and / or technical solutions according to various embodiments of the invention.

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  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé et un appareil de transmission de signaux. Le procédé consiste : à recevoir des premières informations et des secondes informations envoyées respectivement par deux TRP ; en fonction d'un résultat de décodage pour les premières informations et les secondes informations, à renvoyer un premier signal à un TRP en fonction d'une règle prédéfinie, la règle prédéfinie étant utilisée pour ordonner au TRP qui a reçu le premier signal d'envoyer un second signal à l'autre TRP en fonction du premier signal. La présente invention évite efficacement qu'un UE envoie individuellement des informations ACK/NACK à deux TRP, ce qui permet de réduire le surdébit de liaison montante et d'économiser la puissance de transmission de l'UE.
PCT/CN2018/113677 2018-11-02 2018-11-02 Procédé et appareil de transmission de signaux WO2020087498A1 (fr)

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CN201880098576.2A CN112805946A (zh) 2018-11-02 2018-11-02 一种信号的传输方法及装置

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WO2024016299A1 (fr) * 2022-07-22 2024-01-25 Qualcomm Incorporated Sélection de coefficient non nul et indicateur de coefficient le plus fort pour informations d'état de canal de transmission conjointe cohérente

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CN108631951A (zh) * 2017-03-24 2018-10-09 华为技术有限公司 重传处理方法和设备

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