WO2014146304A1 - Procédé et dispositif d'émission de signal - Google Patents

Procédé et dispositif d'émission de signal Download PDF

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Publication number
WO2014146304A1
WO2014146304A1 PCT/CN2013/073088 CN2013073088W WO2014146304A1 WO 2014146304 A1 WO2014146304 A1 WO 2014146304A1 CN 2013073088 W CN2013073088 W CN 2013073088W WO 2014146304 A1 WO2014146304 A1 WO 2014146304A1
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WO
WIPO (PCT)
Prior art keywords
subframe
node
uplink signal
effective
group
Prior art date
Application number
PCT/CN2013/073088
Other languages
English (en)
Chinese (zh)
Inventor
李超君
马莎
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201810451454.9A priority Critical patent/CN108718464B/zh
Priority to CN201380001588.6A priority patent/CN104303535B/zh
Priority to PCT/CN2013/073088 priority patent/WO2014146304A1/fr
Publication of WO2014146304A1 publication Critical patent/WO2014146304A1/fr

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Classifications

    • 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
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to a signal transmission method and device. Background technique
  • the network capacity and base station deployment of wireless communication systems are becoming more and more serious.
  • the heterogeneous network is usually used to expand the capacity by using a miniaturized base station device, such as a micro cell base station or a pico cell base station.
  • a miniaturized base station device such as a micro cell base station or a pico cell base station.
  • the macro-cell eNodeB and the small-cell eNodeB can together provide services to the user equipment (User Equipment, UE).
  • UE User Equipment
  • some UEs have dual-chain reception capability, but only single-chain transmission capability. That is, such a UE can simultaneously receive downlink data from a macro base station and a micro base station, but can only transmit uplink data to the macro base station and the micro base station at different times.
  • the non-ideal backhaul interaction information is used between the macro station and the micro base station, the macro station and the micro base station cannot quickly exchange information, and thus cannot quickly coordinate the UE to send uplink data to different base stations at different times.
  • the UE cannot simultaneously give The macro base station and the micro base station reply with an ACK (Acknowledgement)/NACK (Non-Acknowledgement).
  • ACK Acknowledgement
  • NACK Non-Acknowledgement
  • the UE when it is required to simultaneously send uplink signals to the macro base station and the micro base station, the UE adopts a method of transmitting an uplink signal to one of the macro base station and the micro base station, and discarding another uplink signal.
  • the network side cannot obtain the uplink signal of the UE in time, resulting in poor reliability of the communication system.
  • Embodiments of the present invention provide a signal transmission method and device, which can timely feed back uplink signals and improve the reliability of the communication system.
  • a first aspect of the present invention provides a signal transmission method, including:
  • the first node is configured to carry a valid subframe group of a specific uplink signal, where each of the valid subframe groups is composed of M consecutive subframes, where M is a positive integer;
  • the specific uplink signal includes belonging to the first An uplink signal of a node or an uplink signal attributed to the second node;
  • the effective subframe group is sent to the user equipment UE.
  • the method further includes:
  • the method further includes:
  • the specific uplink signal includes an ACK/NACK corresponding to a physical downlink shared channel (PDSCH), if the UE is receiving Before the specific uplink signal sent in the valid subframe group, the first node sends the PDSCH to the UE in a subframe nk m , where the k m is an integer greater than or equal to 4, Receiving the specific uplink signal sent by the UE in the valid subframe group, including:
  • the subframe n belongs to an uplink subframe in the effective subframe group, obtain an ACK/NACK corresponding to the PDSCH from the subframe n;
  • the ACK/NACK corresponding to the PDSCH is obtained from the subframe n+kxM, where the subframe n+kxM is away from the The most recent sub-frame belonging to the valid subframe group of subframe n, k is a positive integer.
  • the specific uplink signal includes uplink data, if the UE is sent in the valid subframe group after receiving the UE Before the specific uplink signal, the first node sends a physical downlink control channel PDCCH for scheduling the specific uplink signal to the UE in the subframe n, then the Receiving the specific uplink signal that is sent by the UE in the valid subframe group, including: determining a default subframe n+k u that the UE and the network side have agreed to send the specific uplink signal, where The k u is an integer greater than or equal to 4;
  • the subframe n+k u belongs to an uplink subframe in the valid subframe group, obtain a specific uplink signal scheduled by the PDCCH from the subframe n+k u ;
  • the specific uplink signal scheduled by the PDCCH is obtained from the subframe n+k u +kxM, where the subframe n +k u +kxM is the uplink subframe belonging to the effective subframe group closest to the subframe n+k u , and k is a positive integer.
  • the configuration information of the valid subframe group includes: an effective subframe pattern and/or a The effective subframe pattern is effective time; the effective subframe pattern indicates a valid subframe group within a ⁇ ⁇ millisecond allocation period, which is a positive integer.
  • the first node is configured to carry a valid subframe group of a specific uplink signal, including :
  • the first node configures different effective subframe groups for carrying a specific uplink signal.
  • M is equal to 5 or 4.
  • M is equal to 10.
  • a second aspect of the present invention provides a signal transmission method, including:
  • the second node receives configuration information of a valid subframe group that is sent by the first node and is used to carry a specific uplink signal, where each of the valid subframe groups is composed of M consecutive subframes, where M is a positive integer;
  • the uplink signal includes an uplink signal attributed to the second node;
  • the specific uplink signal includes an ACK/NACK corresponding to a physical downlink shared channel PDSCH, and if the user equipment UE is received in the configuration at the second node Before transmitting the PDSCH to the UE in the subframe nk m before the specific uplink signal sent in the valid subframe group indicated by the information, where the! If the number is greater than or equal to 4, the receiving, by the UE, the specific uplink signal sent by the UE in the valid subframe group indicated by the configuration information includes:
  • the subframe n belongs to an uplink subframe in the effective subframe group, obtain an ACK/NACK corresponding to the PDSCH from the subframe n; If the subframe n does not belong to the uplink subframe in the valid subframe group, the ACK/NACK corresponding to the PDSCH is obtained from the subframe n+kxM, where the subframe n+kxM is away from the The most recent sub-frame belonging to the valid subframe group of subframe n, k is a positive integer.
  • the specific uplink signal includes uplink data, if the second node is receiving the valid subframe indicated by the user equipment UE in the configuration information.
  • the specific uplink signal sent in the group when the physical downlink control channel PDCCH for scheduling the specific uplink signal is sent to the UE in the subframe n, the receiving the UE is indicated by the configuration information.
  • the specific uplink signal sent in the valid subframe group includes:
  • the subframe n+k u belongs to an uplink subframe in the valid subframe group, obtain a specific uplink signal scheduled by the PDCCH from the subframe n+k u ;
  • the specific uplink signal scheduled by the PDCCH is obtained from the subframe n+k u +kxM, where the subframe n +k u +kxM is the uplink subframe belonging to the effective subframe group closest to the subframe n+k u , and k is a positive integer.
  • the configuration information of the valid subframe group includes: an effective subframe pattern and/or the effective subframe pattern Effective time;
  • the valid subframe pattern indicates a valid subframe group within a millisecond allocation period, which is a positive integer.
  • the frequency division duplex FDD In the system M is equal to 5 or 4.
  • the current When the row change upstream point period is 5 milliseconds, M is equal to 5; or,
  • M is equal to 10.
  • a third aspect of the present invention provides a signal transmission method, including:
  • the user equipment UE receives configuration information of a valid subframe group sent by the first node for carrying a specific uplink signal, where each valid subframe group is composed of M consecutive subframes, where M is a positive integer;
  • the uplink signal includes an uplink signal attributed to the first node or an uplink signal attributed to the second node;
  • the effective subframe group of the uplink signal is different from the effective subframe group of the uplink signal for carrying the second node.
  • the specific uplink signal includes an ACK/NACK corresponding to a physical downlink shared channel (PDSCH), if the UE is valid in the configuration information indication Before transmitting the specific uplink signal in the subframe group, the first node or the second node sends the PDSCH to the UE in a subframe nk m , where the k m is an integer greater than or equal to 4,
  • the valid subframe indicated by the configuration information Sending the specific uplink signal in the group including:
  • the ACK/NACK corresponding to the PDSCH is sent in the subframe n;
  • the ACK/NACK corresponding to the PDSCH is sent in the subframe n+kxM, where the subframe n+kxM is away from the subframe
  • the most recent subframe of the frame n belongs to the active subframe group, and k is a positive integer.
  • the specific uplink signal includes uplink data, if the specific identifier is sent by the UE in the valid subframe group indicated by the configuration information.
  • the first node or the second node sends a physical downlink control channel PDCCH for scheduling the specific uplink signal to the UE in the subframe n, where the effective indication in the configuration information is
  • the sending the specific uplink signal in the subframe group includes: determining, by the UE, a default subframe n+k u that is agreed by the network side to send the specific uplink signal, where the u u is greater than or equal to 4 Integer
  • the subframe n+k u belongs to an uplink subframe in the effective subframe group, send the specific uplink signal scheduled by the PDCCH in the subframe n+k u ;
  • the subframe n+k u does not belong to an uplink subframe in the valid subframe group, send a specific uplink signal scheduled by the PDCCH in a subframe n+k u +kxM, where the subframe n+ k u +kxM is an uplink subframe belonging to the effective subframe group closest to the subframe n+k u , and k is a positive integer.
  • the configuration information of the valid subframe group includes: an effective subframe pattern and/or a The effective time of the effective subframe pattern.
  • M is equal to 5 or 4.
  • M is equal to 10.
  • a fourth aspect of the present invention provides a node, which is applied to a wireless communication system, where the node is a first node, and the node includes:
  • a configuration unit configured to configure a valid subframe group for carrying a specific uplink signal, where each of the valid subframe groups is composed of M consecutive subframes, where M is a positive integer;
  • a sending unit configured to send, to the user equipment UE, configuration information of the effective subframe group configured by the configuration unit, so that the UE is in the Transmitting the specific uplink signal in the valid subframe group indicated by the configuration information, where the first node and the second node serve the UE at the same time, and are used to carry the uplink signal of the first node.
  • the valid subframe group is different from the effective subframe group used to carry the uplink signal of the second node.
  • the node when the line signal includes the uplink signal that is attributed to the first node, the node further includes: a receiving unit, configured to receive the UE after the sending unit sends the configuration information of the valid subframe group to the user equipment UE The specific uplink signal transmitted in a valid subframe group configured by the configuration unit.
  • the sending unit when the specific uplink signal includes an uplink signal that belongs to the second node, the sending unit is further configured to: in the configuration unit After configuring a valid subframe group for carrying a specific uplink signal, sending configuration information of the effective subframe group configured by the configuration unit to the second node, so that the second node indicates in the configuration information Receiving the specific uplink signal sent by the UE in the valid subframe group.
  • the specific uplink signal includes an ACK/NACK corresponding to the physical downlink shared channel PDSCH;
  • the receiving unit receives the specific signal transmitted in the uplink subframe groups active UE, wherein the transmitting unit transmits the subframe nk m PDSCH to the UE, wherein said! ⁇ is an integer greater than or equal to 4, then the receiving unit is further used to:
  • the subframe n belongs to an uplink subframe in the effective subframe group configured by the configuration unit, acquiring an ACK/NACK corresponding to the PDSCH from the subframe n;
  • the ACK/NACK corresponding to the PDSCH is obtained from the subframe n+kxM, where the subframe n+kxM For the uplink subframe belonging to the effective subframe group closest to the subframe n, k is a positive integer Number.
  • the specific uplink signal includes uplink data
  • the sending unit sends, in the subframe n, the UE, to schedule the specific The physical downlink control channel PDCCH of the uplink signal, the receiving unit is further configured to:
  • the subframe n+k u belongs to an uplink subframe in the effective subframe group configured by the configuration unit, acquiring a specific uplink signal scheduled by the PDCCH from the subframe n+k u ;
  • the specific uplink signal scheduled by the PDCCH is obtained from the subframe n+k u +kxM, where The sub-frame n+k u +kxM is the uplink subframe belonging to the effective subframe group closest to the subframe n+k u , and k is a positive integer.
  • the configuration information of the valid subframe group received by the first receiving unit includes: a valid subframe pattern and/or Or the effective time of the effective subframe pattern; the valid subframe pattern indicates a valid subframe group in a millisecond allocation period, which is a positive integer.
  • the configuration unit is further configured to:
  • a fifth aspect of the present invention provides a node, which is applied to a wireless communication system, where the node is a second node, and the node includes:
  • a first receiving unit configured to receive, by the first node, configuration information of a valid subframe group for carrying a specific uplink signal, where each of the valid subframe groups is composed of M consecutive subframes, where M is a positive integer
  • the specific uplink signal includes an uplink signal that belongs to the second node, and the second receiving unit is configured to receive, by the user equipment UE, the effective subframe group that is sent by the configuration information received by the first receiving unit.
  • the specific uplink signal wherein the first node and the second node simultaneously serve the UE.
  • the specific uplink signal includes an ACK/NACK corresponding to a physical downlink shared channel PDSCH, and the node further includes: a sending unit;
  • the sending unit receives, before the second receiving unit, the specific uplink signal sent by the user equipment UE in the valid subframe group indicated by the configuration information, sending, in the subframe nk m, the UE When the PDSCH is described, it is described! ⁇ is an integer greater than or equal to 4, and the second receiving unit is further configured to:
  • the ACK/NACK corresponding to the PDSCH is obtained from the subframe n;
  • the ACK/NACK corresponding to the PDSCH is obtained from the subframe n+kxM, where The sub-frame n+kxM is the closest to the sub-frame n and belongs to the valid The uplink subframe of the subframe group, k is a positive integer.
  • the specific uplink signal includes uplink data
  • the node further includes: a sending unit;
  • the sending unit receives, before the second receiving unit, the specific uplink signal sent by the user equipment UE in the valid subframe group indicated by the configuration information, send the subframe n to the UE for And scheduling the physical downlink control channel PDCCH of the specific uplink signal, where the second receiving unit is further configured to:
  • the PDCCH scheduling is obtained from the subframe n+k u +kxM a specific uplink signal, where the subframe n+k u +kxM is an uplink subframe belonging to the effective subframe group closest to the subframe n+k u , and k is a positive integer.
  • the configuration information of the valid subframe group received by the first receiving unit includes: The frame pattern and/or the effective time of the effective subframe pattern; the effective subframe pattern indicates a valid subframe group within a millisecond allocation period, which is a positive integer.
  • a sixth aspect of the present invention provides a UE, including:
  • a receiving unit configured to receive configuration information of a valid subframe group that is sent by the first node and that is used to carry a specific uplink signal, where each of the valid subframe groups is composed of M consecutive subframes, where a positive integer;
  • the specific uplink signal includes an uplink signal attributed to the first node or an uplink signal attributed to the second node;
  • a sending unit configured to send the specific uplink signal in the valid subframe group indicated by the configuration information received by the receiving unit, where the first node and the second node simultaneously serve the The UE, the effective subframe group for carrying the uplink signal of the first node, and the effective subframe group for carrying the uplink signal of the second node are different.
  • the specific uplink signal includes an ACK/NACK corresponding to a physical downlink shared channel PDSCH;
  • the transmitting unit Before the transmitting unit sends the specific uplink signal in the valid subframe group indicated by the configuration information received by the receiving unit, the first node or the second node is in a subframe nk m
  • the UE sends the PDSCH, where the! ⁇ is an integer greater than or equal to 4, then the sending unit is further used to:
  • the ACK/NACK corresponding to the PDSCH is sent in the subframe n; If the frame n does not belong to the uplink subframe in the valid subframe group indicated by the configuration information received by the receiving unit, the ACK/NACK corresponding to the PDSCH is sent in the subframe n+kxM, where the subframe n+ kxM is an uplink subframe belonging to the effective subframe group closest to the subframe n, and k is a positive integer.
  • the specific uplink signal includes uplink data
  • the first node or the second node Before transmitting the specific uplink signal in the subframe group, the first node or the second node sends a physical downlink control channel PDCCH for scheduling the specific uplink signal to the UE in the subframe n, then the sending unit Also used for:
  • the specific uplink of the PDCCH scheduling is sent in the subframe n+k u signal;
  • the specificity of the PDCCH scheduling is sent in the subframe n+k u +kxM
  • An uplink signal where the subframe n+k u +kxM is an uplink subframe belonging to the effective subframe group closest to the subframe n+k u , and k is a positive integer.
  • the configuration information of the valid subframe group received by the receiving unit includes: The frame pattern and/or the effective time of the effective subframe pattern.
  • a seventh aspect of the present invention provides a node, which is applied to a wireless communication system, where the node is a first node, and the node includes:
  • a processor configured to configure a valid subframe group for carrying a specific uplink signal, where each of the valid subframe groups is composed of M consecutive subframes, where M is a positive integer; the specific uplink signal includes a belonging to the An uplink signal of the first node or an uplink signal belonging to the second node; a transmitter, configured to send, to the user equipment UE, configuration information of the effective subframe group configured by the processor, so that the UE is in the Transmitting the specific uplink signal in the valid subframe group indicated by the configuration information; wherein, the first node and the second node simultaneously serve The UE, the effective subframe group for carrying the uplink signal of the first node, and the effective subframe group for carrying the uplink signal of the second node are different.
  • the node when the specific uplink signal includes an uplink signal that belongs to the first node, the node further includes:
  • a receiver configured to: after the transmitter sends the configuration information of the valid subframe group to the user equipment UE, receive the specific uplink signal sent by the UE in a valid subframe group configured by the processor.
  • the transmitter when the specific uplink signal includes an uplink signal that belongs to the second node, the transmitter is further configured to: After configuring a valid subframe group for carrying a specific uplink signal, sending configuration information of the valid subframe group configured by the processor to the second node, so that the second node indicates in the configuration information Receiving the specific uplink signal sent by the UE in the valid subframe group.
  • the specific uplink signal includes an ACK/NACK corresponding to the physical downlink shared channel PDSCH;
  • the transmitter transmits the PDSCH to the UE in a subframe nk m before the receiver receives the specific uplink signal sent by the UE in the valid subframe group, where the k m For an integer greater than or equal to 4, the receiver is also used to:
  • the subframe n belongs to an uplink subframe in the effective subframe group configured by the processor, obtaining an ACK/NACK corresponding to the PDSCH from the subframe n; If the subframe n does not belong to an uplink subframe in the effective subframe group configured by the processor, the ACK/NACK corresponding to the PDSCH is obtained from the subframe n+kxM, where the subframe n+kxM For the uplink subframe belonging to the effective subframe group closest to the subframe n, k is a positive integer.
  • the specific uplink signal includes uplink data
  • the receiver 83 is further configured to:
  • the subframe n+k u belongs to an uplink subframe in the effective subframe group configured by the processor, acquiring a specific uplink signal scheduled by the PDCCH from the subframe n+k u ;
  • the specific uplink signal scheduled by the PDCCH is obtained from the subframe n+k u +kxM, where The sub-frame n+k u +kxM is the uplink subframe belonging to the effective subframe group closest to the subframe n+k u , and k is a positive integer.
  • the configuration information of the valid subframe group sent by the transmitter includes: The frame pattern and/or the effective time of the effective subframe pattern; the effective subframe pattern indicates a valid subframe group within a millisecond allocation period, which is a positive integer.
  • the processor is further configured to:
  • a node for use in a wireless communication system, where the node is a second node, and the node includes:
  • a receiver configured to receive, by the first node, configuration information of a valid subframe group for carrying a specific uplink signal, where each of the valid subframe groups is composed of M consecutive subframes, where M is a positive integer;
  • the specific uplink signal includes an uplink signal attributed to the second node;
  • a processor configured to determine, according to the configuration information received by the receiver, the effective subframe group for carrying a specific uplink signal
  • the receiver is further configured to receive, in a valid subframe group determined by the processor, the specific uplink signal sent by the user equipment UE in the valid subframe group indicated by the configuration information; The first node and the second node simultaneously serve the UE.
  • the specific uplink signal includes an ACK/NACK corresponding to a physical downlink shared channel (PDSCH), and the node further includes: a transmitter;
  • PDSCH physical downlink shared channel
  • the processor determines the transmission by a transmitter, transmitting the PDSCH to the UE in subframe nk m, wherein The k m is an integer greater than or equal to 4, the receiver is further configured to: determine, by the UE, a default subframe n that is agreed by the network side to send an ACK/NACK corresponding to the PDSCH;
  • the subframe n belongs to an uplink subframe in the valid subframe group indicated by the configuration information determined by the processor, acquiring an ACK/NACK corresponding to the PDSCH from the subframe n; If the subframe n does not belong to the uplink subframe in the valid subframe group indicated by the configuration information determined by the processor, the ACK/NACK corresponding to the PDSCH is obtained from the subframe n+kxM, where The sub-frame n+kxM is the uplink subframe belonging to the effective subframe group closest to the subframe n, and k is a positive integer.
  • the specific uplink signal includes uplink data
  • the node further includes: a transmitter
  • the physical downlink control channel PDCCH the receiver is further configured to:
  • the subframe n+k u belongs to an uplink subframe in a valid subframe group indicated by the configuration information determined by the processor, acquiring a specific uplink signal scheduled by the PDCCH from the subframe n+k u ;
  • the specific uplink of the PDCCH scheduling is obtained from the subframe n+k u +kxM a signal, wherein the subframe n+k u +kxM is an uplink subframe belonging to the effective subframe group closest to the subframe n+k u , and k is a positive integer.
  • the configuration information of the valid subframe group received by the receiver includes: a valid subframe pattern And/or an effective time of the effective subframe pattern; the valid subframe pattern indicates a valid subframe group within a millisecond allocation period, which is a positive integer.
  • a ninth aspect of the present invention provides a UE, including: a receiver, configured to receive, by the first node, configuration information of a valid subframe group for carrying a specific uplink signal, where each of the valid subframe groups is composed of M consecutive subframes, where M is a positive integer;
  • the specific uplink signal includes an uplink signal attributed to the first node or an uplink signal attributed to the second node;
  • a processor configured to determine, according to the configuration information received by the receiver, a valid subframe group for carrying the specific uplink signal
  • a transmitter configured to send the specific uplink signal in the valid subframe group determined by the processor, where the first node and the second node serve the UE at the same time
  • the effective subframe group of the uplink signal of the first node is different from the effective subframe group of the uplink signal for carrying the second node.
  • the specific uplink signal includes an ACK/NACK corresponding to a physical downlink shared channel PDSCH;
  • the sending unit is further configured to: determine, by the UE, a default subframe n that is agreed by the network side to send an ACK/NACK corresponding to the PDSCH;
  • the ACK/NACK corresponding to the PDSCH is sent in the subframe n;
  • the ACK/NACK corresponding to the PDSCH is sent in the subframe n+kxM, where the subframe n+kxM is An uplink subframe belonging to the effective subframe group closest to the subframe n, k is a positive integer.
  • the specific uplink The signal includes uplink data
  • the sending unit is further configured to:
  • the processor If the subframe n+k u belongs to an uplink subframe in the valid subframe group determined by the processor, sending the specific uplink signal scheduled by the PDCCH in the subframe n+k u ;
  • the specific uplink signal scheduled by the PDCCH is transmitted in the subframe n+k u +kxM, where the The subframe n+k u +kxM is the uplink subframe belonging to the effective subframe group closest to the subframe n+k u , and k is a positive integer.
  • the configuration information of the valid subframe group received by the receiver includes: an actor The frame pattern and/or the effective time of the effective subframe pattern.
  • the signal transmission method and device provided by the embodiments of the present invention configure a valid subframe group carrying a specific uplink signal for each node, so that multiple nodes can simultaneously serve the same UE with dual-link receiving capability and single-chain transmission capability.
  • the UE can only send the uplink signal of one node or the carrier, the UE can send the specific uplink signal corresponding to the node in the effective subframe group corresponding to each node, so that different nodes can be
  • the uplink signals are separated, and the uplink signals can be sent to multiple nodes at the same time, realizing timely feedback of the uplink signals, and improving the reliability of the communication system.
  • Embodiment 1 is a flowchart of a signal transmission method in Embodiment 1 of the present invention.
  • Embodiment 2 is a flowchart of another signal transmission method in Embodiment 1 of the present invention.
  • Embodiment 3 is a flowchart of another signal transmission method in Embodiment 1 of the present invention.
  • Embodiment 4 is a flowchart of a signal transmission method in Embodiment 2 of the present invention.
  • FIG. 5 is a schematic diagram of an effective subframe pattern in Embodiment 2 of the present invention.
  • FIG. 6 is a schematic diagram of another effective subframe pattern in Embodiment 2 of the present invention.
  • FIG. 7 is a flowchart of a specific implementation method of step 403 in Embodiment 2 of the present invention
  • FIG. 8 is a flowchart of a signal transmission method according to Embodiment 3 of the present invention.
  • Embodiment 9 is a flowchart of a signal transmission method in Embodiment 4 of the present invention.
  • FIG. 11 is a schematic structural diagram of a node in Embodiment 5 of the present invention.
  • FIG. 12 is a schematic diagram of another node composition in Embodiment 5 of the present invention.
  • FIG. 13 is a schematic diagram of a node composition in Embodiment 6 of the present invention.
  • FIG. 14 is a schematic diagram of another node composition in Embodiment 6 of the present invention.
  • FIG. 15 is a schematic structural diagram of a UE in Embodiment 7 of the present invention.
  • FIG. 16 is a schematic diagram of another UE composition in Embodiment 7 of the present invention.
  • GSM Global System for Mobile Communications
  • CDMA Code Division Multiple Access
  • CDMA Code Division Multiple
  • TDMA Time Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDM Orthogonal Frequency OFDM (Orthogonal Frequency-Division Multiple Access) system
  • SC-FDMA single carrier FDMA
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • the user equipment in the present invention may be a terminal device such as a mobile phone, a palmtop computer, a notebook computer, a personal computer, or a mobile station, a mobile station or a user terminal.
  • a node in the present invention may be referred to as a base station or an access point (AP).
  • the node may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or a base station (NodeB) in WCDMA, or an evolved base station in LTE (NodeB or eNB or e-NodeB, evolutional Node B), this application is not limited.
  • BTS Base Transceiver Station
  • NodeB base station
  • WCDMA base station
  • LTE NodeB or eNB or e-NodeB, evolutional Node B
  • Return Uplink signals belonging to different nodes may be carried on different uplink carriers or on the same uplink carrier. Different uplink carriers are located in different frequency bands and have different center carrier frequencies.
  • CA carrier aggregation
  • an uplink carrier may also be referred to as an uplink unit carrier.
  • system and “network” are used interchangeably herein.
  • the term “and/or” in this context is merely an association describing the associated object, indicating that there can be three relationships, for example, A and / or B, which can mean: A exists separately, and both A and B exist separately. B these three situations.
  • the character " /" in this article generally means that the contextual object is an "or" relationship.
  • the time domain in the communication system is composed of a radio frame.
  • one subframe is identified by the system frame number and the subframe number within each radio frame.
  • Each subframe consists of 12 or 14 symbol groups, where the uplink symbol is called Single-Carrier Frequency Division Multiple Access (SC-FDMA) symbol, and the downlink symbol is called orthogonal frequency division. Orthogonal Frequency Division Multiplexing (OFDM) symbols.
  • SC-FDMA Single-Carrier Frequency Division Multiple Access
  • OFDM Orthogonal Frequency Division Multiplexing
  • FDD Frequency Division Duplexing
  • each subframe includes 2 slots.
  • TDD Time Division Duplexing
  • Table 1 7 kinds of uplink and downlink configuration diagrams.
  • 'D indicating a downlink subframe
  • 'U indicating an uplink subframe
  • 'S indicating a special subframe (Special subframe)
  • DwPTS Downlink Pilot Time Slot
  • Guard Period Guard Period
  • UpPTS Uplink Pilot TimeSlot
  • An embodiment of the present invention provides a signal transmission method, as shown in FIG. 1, including:
  • the first node is configured to carry a valid subframe group of a specific uplink signal, where each of the valid subframe groups is composed of M consecutive subframes, where M is a positive integer; the specific uplink signal includes belonging to the The uplink signal of the first node or the uplink signal belonging to the second node.
  • the first node and the second node can simultaneously serve the same UE with dual-link receiving capability and single-chain transmitting capability.
  • the first node may be a macro base station, and the second node is a micro base station; or both the first node and the second node may be micro base stations.
  • the other types of network nodes other than the macro base station and the micro base station may also be configured by using the method in the embodiment of the present invention, which is not limited in this embodiment of the present invention.
  • the first node may only configure the effective subframe group of the first node, and the effective subframe group of the second node is the uplink signal that the UE and the second node have agreed to use for transmitting the uplink signal belonging to the second node.
  • the default subframe is usually stipulated by protocols and standards.
  • the first node may configure only the effective subframe group of the second node, and the first node adopts a default subframe that the UE and the first node have agreed to transmit the uplink signal that belongs to the first node.
  • the first node may allocate both a valid subframe group of the first node and a valid subframe group of the second node.
  • the embodiment of the present invention does not limit the configuration manner and the sequence of configuration of the effective subframe group.
  • the effective subframe group is a subframe group used by the UE to send an uplink signal attributed to the first node or the second node.
  • the uplink signals belonging to different nodes may be carried on different uplink carriers or may be carried on the same uplink carrier. Therefore, for the same UE, a valid subframe group corresponding to the node may be configured for each node for sending. The uplink signal of this node.
  • the sending by the UE, the configuration information of the valid subframe group, to enable the UE to send the specific uplink signal in the valid subframe group indicated by the configuration information, where the first node and the The second node serves the UE at the same time, and the effective subframe group for carrying the uplink signal of the first node and the effective subframe group for carrying the uplink signal of the second node are different.
  • the configuration information of the valid subframe group may be a valid subframe pattern, and different effective subframe patterns may be configured for different uplink carriers or different nodes.
  • the UE may determine, according to the effective subframe pattern corresponding to the node, that the node to which the uplink signal to be transmitted belongs is valid. And determining, by the subframe group, the effective subframe group corresponding to the uplink carrier carried by the uplink signal to be sent according to the effective subframe pattern corresponding to the uplink carrier.
  • first node and the second node serve the same at the same time.
  • the UE means that the first node and the second node both serve the UE in the same period of time. In other words, the first node and the UE remain connected during this period of time, and the second node also maintains a connection with the UE. It can be understood that the first node and the second node may not schedule uplink or downlink data services of the UE in the same subframe during this period of time.
  • the UE sends the specific uplink signal to the first node in the valid subframe group indicated by the configuration information, where the first node may be The specific uplink signal is received in the valid subframe group.
  • the specific uplink signal includes an uplink signal that belongs to the second node
  • the first node not only sends the configuration information to the UE, but also sends the configuration information to the second node. Therefore, the UE sends the specific uplink signal to the second node in the valid subframe group indicated by the configuration information, and the second node may receive the specific uplink signal in the valid subframe group.
  • FIG. 2 Another aspect of the embodiments of the present invention further provides a signal transmission method, as shown in FIG. 2, including:
  • the user equipment UE receives configuration information that the first node sends a valid subframe group for carrying a specific uplink signal, where the effective subframe group is composed of M consecutive subframes, where M is a positive integer; the specific uplink The signal includes an uplink signal attributed to the first node or an uplink signal attributed to the second node.
  • the specific uplink signal is sent in a valid subframe group corresponding to the valid subframe group information, where the first node and the second node serve the UE at the same time, and are used to carry the a valid subframe group of an uplink signal of a node and an upper layer for carrying the second node
  • the effective subframe group of the line signal is different.
  • the specific uplink signal includes an uplink signal that belongs to the first node, and the UE sends the specific uplink signal to the first node in the valid subframe group indicated by the configuration information.
  • the specific uplink signal includes an uplink signal that belongs to the second node, and the UE sends the specific uplink signal to the second node in the valid subframe group indicated by the configuration information.
  • FIG. 3 Another aspect of the embodiments of the present invention further provides a signal transmission method, as shown in FIG. 3, including:
  • the second node receives, by the first node, configuration information of a valid subframe group that is used by the first node to carry a specific uplink signal, where each of the valid subframe groups is composed of M consecutive subframes, where M is a positive integer;
  • the specific uplink signal includes an uplink signal attributed to the second node.
  • the specific uplink signal includes an uplink signal that belongs to the second node, and the first node sends configuration information of the effective subframe group to the UE and the second node, so that the UE can be configured.
  • the specific uplink signal is sent to the second node in the valid subframe group indicated by the information, and the second node may receive the specific uplink signal sent by the UE in the valid subframe group indicated by the configuration information.
  • steps 301 and 302 in this embodiment reference may be made to steps 101 and 102 of the embodiment and corresponding contents in steps 201 and 202. The details are not repeated.
  • the signal transmission method provided by the embodiment of the present invention configures a valid subframe group carrying a specific uplink signal for each node, so that multiple nodes can simultaneously serve the same UE with dual-link receiving capability and single-chain transmission capability, and
  • the UE can only send a specific uplink signal corresponding to the node in the effective subframe group corresponding to each node, so that the uplink signals of different nodes can be distinguished.
  • the uplink signal can be sent to multiple nodes at the same time, and the timely feedback of the uplink signal is realized, thereby improving the reliability of the communication system.
  • the embodiment of the invention provides a signal transmission method, as shown in FIG. 4, including:
  • the first node is configured to carry a valid subframe group of a specific uplink signal.
  • Each of the valid subframe groups is composed of M consecutive subframes, where M is a positive integer; the specific uplink signal includes an uplink signal attributed to the first node or an uplink signal attributed to the second node.
  • the first node and the second node serve the UE at the same time, and the effective subframe group for carrying the uplink signal of the first node and the uplink signal for carrying the second node are valid.
  • Subframe groups are different.
  • the first node may configure a valid subframe group for the uplink signal of the node, that is, the specific uplink signal includes an uplink signal that belongs to the first node, or the first node may also configure a valid subframe group for the uplink signals of other nodes, that is,
  • the particular uplink signal includes an uplink signal that is attributed to the second node. This is referred to herein as the second node, primarily to distinguish it from the first node, that is, the first node and the second node are two different nodes.
  • the first node may be a macro base station and the second node may be a micro base station. Since the performance of the macro base station is generally stronger than that of the micro base station, the effective base station group can be configured for the micro base station by utilizing the powerful performance of the macro base station.
  • the first node and the second node may be micro base stations at the same time, and one of the micro base stations performs the allocation of the effective subframe group. Set.
  • the M consecutive subframes in each valid subframe group include uplink subframes that can be used by the UE to send the specific uplink signal.
  • the downlink carrier and the uplink carrier are in different frequency bands, and all subframes on the uplink carrier are uplink subframes, so M consecutive subframes can be used for the UE to transmit a specific uplink signal;
  • the downlink carrier and The uplink carriers are located in the same frequency band, and only some of the subframes on the uplink carrier are uplink subframes, so some or all of the M consecutive subframes can be used for the UE to send a specific uplink signal.
  • the uplink carrier of the node is a specific uplink carrier.
  • the uplink carrier 1 is a designated uplink carrier of the node.
  • the node may be any one of the nodes specified in the wireless communication system.
  • the node may be a micro base station or a macro base station.
  • the uplink signals include uplink channels, such as PUSCH, PUCCH, and PRACH, and may also include uplink reference signals, such as DMRS and SRS.
  • one effective subframe group is composed of 5 or 4 consecutive subframes.
  • five consecutive subframes are one effective subframe group, and ten consecutive subframes constitute one allocation period.
  • the effective subframe patterns of the uplink carrier 1 and the uplink carrier 2 are mutually offset.
  • the UE may send the uplink signal carried by the uplink carrier 1 in the first effective subframe group, and transmit the uplink data carried in the uplink carrier 2 in the second effective subframe group.
  • the macro base station and the micro base station are two designated nodes that simultaneously serve the same UE, and the effective subframe pattern of the macro base station and the effective subframe pattern of the micro base station are mutually offset. In this way, in each allocation period, the UE may send an uplink signal belonging to the macro base station in the first effective subframe group, and transmit uplink data attributed to the small base station in the second effective subframe group.
  • a valid subframe group can be composed of 5 consecutive subframes; when the downlink uplink transition point period is 10 milliseconds, a valid subframe group can be composed of 10 consecutive subframes. Or, when the uplink and downlink configuration is 0, 1, or 2, a valid subframe group may be composed of 5 consecutive subframes; when the uplink and downlink configuration is 3, 4, 5, or 6, a valid subframe group may be 10 Consecutive sub-frames.
  • Table 1 For details of the configuration of the uplink and downlink configuration and the downlink-to-uplink transition point period, refer to Table 1.
  • the above downlink configuration 1 is taken as an example, five consecutive subframes constitute one effective subframe group, and ten consecutive subframes are one allocation period.
  • D is a downlink subframe
  • S is a special subframe
  • U is an uplink subframe.
  • the UE may send the uplink data carried in the uplink carrier 1 in the uplink subframe in the first effective subframe group, and the uplink subframe in the second effective subframe group is sent in the uplink subframe.
  • the macro base station and the micro base station are two designated nodes that simultaneously serve the same UE, and the effective subframe pattern of the macro base station and the effective subframe pattern of the micro base station are mutually offset.
  • the UE may send an uplink signal belonging to the macro base station in an uplink subframe in the first effective subframe group, and the uplink subframe transmission in the second effective subframe group belongs to the micro Uplink data of the base station.
  • the first node sends configuration information of the valid subframe group to the UE, so that the UE sends the specific uplink signal in the valid subframe group indicated by the configuration information.
  • the configuration information of the effective subframe group may include an effective subframe pattern and/or an effective subframe/active time of the effective subframe pattern.
  • the first node may notify the UE of the valid subframe pattern by using the high layer signaling, and configure the UE to send only the specific uplink signal in the uplink subframe in the effective subframe group.
  • High Layer Signaling is relative physical layer signaling. Signalling from the higher layer sends slower frequency, including RRC (Radio Resource Control) signaling and media access. Control (MAC, Media Access Control) Signaling, etc.
  • the high layer signaling may be MAC signaling.
  • the high layer signaling may also be dedicated RRC signaling for each UE, so that the effective subframe pattern of each UE may be separately configured.
  • the high layer signaling may also be broadcast signaling, and may exist in a Master Information Block (MIB) and/or a System Information Block (SIB), so that the UE in the cell can be uniformly performed. Effective subframe pattern configuration.
  • MIB Master Information Block
  • Configuring a valid subframe group can be achieved by configuring a valid subframe pattern.
  • the effective subframe pattern is used to indicate the distribution of the effective subframe group in one allocation period, and the UE selects the uplink subframe in the effective subframe group when transmitting the uplink signal.
  • the first node is configured with a continuous subframe group, and one subframe group is composed of M consecutive subframes, and one allocation period is composed of ⁇ : subframe groups, that is, consists of xM subframes, and the duration is ⁇ milliseconds, where ⁇ is a positive integer.
  • a valid subframe refers to a subframe in which the UE can transmit a specific uplink signal.
  • An invalid subframe refers to a subframe in which the UE cannot transmit a specific uplink signal.
  • a valid subframe group refers to a subframe group in which a UE can transmit a specific uplink signal.
  • An invalid subframe group refers to a subframe group in which the UE cannot transmit a specific uplink signal.
  • the valid subframe pattern indicates a valid subframe group within a millisecond allocation period.
  • M represents a sub-frame or a subframe of the valid subframe group
  • the number indicates the number of subframe groups included in an allocation period, meO, ''', Ml
  • m is an uplink subframe in M consecutive subframes in a valid subframe group, and a is valid in one allocation period.
  • the group number of the sub-frame group ⁇ ⁇ 0, ⁇ , -1.
  • the group number of the valid subframe group can be configured by a valid subframe pattern. It should be noted that different effective subframe patterns may be configured for different uplink carriers or different nodes. As long as the first node does not reconfigure or deactivate the active subframe pattern, the effective subframe pattern is the same for each allocation period.
  • the first node notifies that the valid subframe pattern can be implemented by notifying ⁇ , and .
  • the first node indicates, by using configuration information, the number of subframes (ie, ⁇ ) and/or in a valid subframe group.
  • the number of valid subframe groups of an allocation period ie, the first node indicates a valid subframe group (ie, ⁇ ) within one allocation period by using configuration information, for example, the configuration information includes ⁇ bits, and each bit indicates one subframe.
  • the attribute of the group that is, whether the subframe group is an invalid subframe group or a valid subframe group, for example, "0" indicates an invalid subframe group, and "1" indicates a valid subframe group.
  • the bits indicate an allocation period, The attribute of the frame group.
  • the standard pre-defines a valid subframe pattern, and then indicates which one of the valid subframe patterns is configured by the configuration information.
  • the first node may further configure an effective time of the effective subframe pattern.
  • the method for configuring the effective time may be: The first node notifies the UE of the system frame number (SFN, System Frame Number) that is valid, that is, the SFN where the effective subframe pattern starts to take effect.
  • the method for configuring the effective time may be: the first node notifies the UE of N subframes or N milliseconds after receiving the configuration information of the valid subframe pattern, or the configuration information that feeds back the effective subframe pattern to the first node is correctly received. For N subframes or N milliseconds, the effective subframe pattern begins to take effect. Where N is an integer greater than or equal to zero.
  • the first node may further configure a duration of the effective subframe group, and the minimum unit of the duration may be a radio frame level, and one radio frame is 10 ms.
  • the first node configuration effective subframe group is valid within 100 radio frames or 50 radio frames.
  • the minimum unit can also be in the millisecond (ms) level.
  • the node configuration effective subframe group is valid for 100ms or valid for 1000ms.
  • the first node informs the UE of the duration of the active subframe group, or the standard pre-defines the duration of the active subframe group. After the duration of the effective sub-frame group configuration signaling is invalid, the UE adopts the default effective subframe group mode.
  • the default effective subframe group configuration mode may be effective for all uplink subframes in all subframe groups. Uplink subframe.
  • the specific uplink signal includes an uplink signal that belongs to the first node
  • the first node receives the specific uplink signal sent by the UE in the valid subframe group.
  • the specific uplink signal may be an ACK/NACK corresponding to the PDSCH
  • the step 403 may include the following steps 4031 and 4032:
  • the first node sends a PDSCH to the UE in the subframe 11-1, and determines an uplink subframe in which the UE sends the ACK/NACK of the PDSCH, where the k m is an integer greater than or equal to 4.
  • the UE when the downlink transmission supports the HARQ technology, after receiving the PDSCH (Physical Downlink Share Channel), the UE needs to feed back the ACK/NACK information of the PDSCH, where the ACK/NACK information indicates the reception of the PDSCH. result.
  • the UE When the PDSCH is received correctly, the UE feeds back the ACK.
  • the UE When the PDSCH receives the error, the UE feeds back the NACK.
  • the ACK/NACK is transmitted on the PUCCH (Physical Uplink Control Channel).
  • the process can be:
  • the first node sends a PDSCH to the UE in a subframe, which is an integer greater than or equal to 4. Since a sub-frame is a time domain unit, a sub-frame represents a time. The subframe indicates the subframe "the first subframe of the previous number, or the subframe" is the subframe that is delayed by the subframe.
  • the first node determines, according to the subframe in which the PDSCH is transmitted, that the UE and the network have agreed that the UE transmits the default subframe of the ACK/NACK of the PDSCH to the subframe.
  • the network side in the present invention refers to The network side where the first node and the second node are located. That is based on the determination.
  • the first subframe after the PDSCH is sent is the agreed default subframe.
  • ⁇ 4 that is, the 4th subframe after the PDSCH transmission is the agreed default subframe.
  • TDD systems there are differences in different uplink and downlink configurations, for example,
  • the first node determines, according to the default subframe that the UE and the network side have agreed to, an uplink subframe in which the UE sends the ACK/NACK information of the PDSCH.
  • the subframe belongs to an uplink subframe in the effective subframe group.
  • determining that the UE sends an ACK/NACK of the PDSCH in a subframe At the time of the frame, determining that the UE sends an ACK/NACK of the PDSCH in a subframe.
  • the subframe "does not belong to an uplink subframe in the valid subframe group determine that the UE transmits ACK/NACK information of the PDSCH in a subframe "+M", the subframe "+ M It belongs to the uplink subframe in the nearest valid framing group of the distance subframe, and the subframe "+M is the subframe" delayed by the first subframe.
  • the default subframe n used by the UE and the network side for transmitting the ACK/NACK is the subframe 7, but the subframe 7 does not belong to the uplink subframe in the effective subframe group.
  • subframe 7 After subframe 7 is delayed by 5 subframes, it is subframe 2 of the next radio frame, and subframe 2 of the next radio frame is an uplink subframe of the effective subframe group, so it is determined that the UE is delayed 5
  • Each subframe transmits an ACK/NACK of the PDSCH.
  • the first node acquires the ACK/NACK from a subframe in which the determined UE sends an ACK/NACK corresponding to the PDSCH.
  • the specific uplink signal includes uplink data scheduled by the node.
  • step 403 may include the following steps 4033 and 4034:
  • the first node sends a PDCCH to the UE in the subframe n, and determines that the UE sends the effective subframe group of the uplink data corresponding to the PDCCH.
  • the UE needs to send the uplink data scheduled by the node.
  • the scheduled uplink data may include PUSCH and aperiodic SRS.
  • the implementation process of the first node determining that the UE sends the subframe of the uplink data corresponding to the PDCCH may be:
  • the first node sends a PDCCH to the UE in a subframe, and the PDCCH is used to schedule a specific uplink signal.
  • the first node determines, according to the subframe in which the PDCCH is sent, that the UE and the default subframe that is used by the network side to send the uplink data corresponding to the PDCCH are subframes.
  • n + k " , " is an integer greater than or equal to 4.
  • the default subframe is determined according to the timing between the standard predefined PDCCH and the uplink signal, that is, according to the determination.
  • the first subframe after the PDCCH is sent is a default subframe for transmitting the uplink data corresponding to the PDCCH.
  • the TDD system it is different in different uplink and downlink configurations, and the specific convention is similar to Table 2 (see The protocol of 3GPP LTE Release 8, 9, 10 or 11), this embodiment will not be described in detail herein.
  • the first node determines, according to the agreed default subframe “+, an uplink subframe in which the UE sends uplink data corresponding to the PDCCH.
  • the subframe “+ belongs to an uplink subframe in the valid subframe group, Determining that the UE transmits the specific uplink signal in a subframe "+; when the subframe
  • the UE sends the specific uplink signal in the subframe w + + fc x M, where the subframe "+ + ⁇ x M belongs to the distance sub-frame
  • the uplink subframe in the valid subframe group closest to the frame is a positive integer.
  • the first node acquires the uplink data from a subframe in which the determined uplink data corresponding to the PDCCH is sent by the UE.
  • the first node sends configuration information of the valid subframe group to the second node, so that the second node is in the Receiving, by the valid subframe group indicated by the configuration information, the specific uplink signal sent by the UE.
  • the first node may send configuration information of the valid subframe group to the second node through an air interface, a ⁇ 2 interface, or a backhaul.
  • the configuration information of the effective subframe group may include a valid subframe pattern, an effective time or duration of the effective subframe pattern, and the like, and the methods listed in step 402 are specifically omitted, and details are not described herein again.
  • step 404 provides a method, so that the first node can uniformly allocate the effective subframe group to the first node and the second node, and then notify the effective subframe group of the second node, and then the first node and the second node can Dynamic scheduling is performed within respective valid subframe groups.
  • step 402 is performed after step 401
  • step 403 is performed after step 402.
  • Step 404 is performed after step 401, but has no sequential relationship with step 402 or step 403.
  • the signal transmission method provided in this embodiment configures a valid subframe group carrying a specific uplink signal for each node, so that multiple nodes can simultaneously serve the same UE with dual-link receiving capability and single-chain transmission capability.
  • a UE can send a specific uplink signal corresponding to the node in a valid subframe group corresponding to each node, so that the uplink of different nodes can be performed.
  • the signals are separated, and the uplink signals can be sent to multiple nodes at the same time, realizing timely feedback of the uplink signals, and improving the reliability of the communication system.
  • the timing relationship between the new PDSCH and the ACK/NACK, the timing relationship between the PDCCH and the PUSCH, and the aperiodic SRS are designed, so that even if the uplink subframes belonging to different nodes are limited, The UE can still perform normal and timely uplink transmission.
  • the embodiment of the invention provides a signal transmission method. As shown in FIG. 8, the method includes: 501.
  • the second node receives, by the first node, configuration information of a valid subframe group that is used by the first node to carry a specific uplink signal, where each of the valid subframe groups is composed of M consecutive subframes, where M is a positive integer;
  • the specific uplink signal includes an uplink signal attributed to the second node;
  • the configuration information of the valid subframe group includes: an effective subframe group pattern and/or an effective time/duration of the effective subframe group pattern.
  • the method listed in step 402 can be specifically seen, and details are not described herein again.
  • M is equal to 5 or 4.
  • M is equal to 5; when the downlink-uplink transition point period is 10 milliseconds, M is equal to 10.
  • M when the uplink and downlink configuration is 0, 1, or 2, M is equal to 5; when the uplink and downlink configuration is 3, 4, 5, or 6, M is equal to 10.
  • the specific uplink signal may be an ACK/N ACK corresponding to the PDSCH, and the embodiment may include the following steps 502 and 503:
  • the second node sends a PDSCH to the UE in the subframe 11-1, and determines an uplink subframe in which the UE sends the ACK/NACK of the PDSCH, where the k m is an integer greater than or equal to 4.
  • the implementation process of determining, by the second node, the subframe in which the UE sends the ACK/NACK of the PDSCH may be:
  • the second node sends a PDSCH to the UE in a subframe, which is an integer greater than or equal to 4.
  • the second node determines, according to the subframe in which the PDSCH is transmitted, that the UE and the network have agreed that the UE sends the default subframe of the ACK/NACK of the PDSCH to the subframe.
  • the second node determines, according to the default subframe that the UE and the network side have agreed to, an uplink subframe in which the UE sends the ACK/NACK information of the PDSCH.
  • the subframe belongs to an uplink subframe in the valid subframe group.
  • /i + M is the subframe that is delayed by the first subframe.
  • the second node acquires the ACK/NACK from a subframe in which the determined UE sends the ACK/NACK corresponding to the PDSCH.
  • the specific uplink signal includes uplink data scheduled by the node, and the embodiment may include the following steps 504 and 505:
  • the second node sends a PDCCH to the UE in the subframe n, and determines that the UE sends a valid subframe group of the uplink data corresponding to the PDCCH.
  • the implementation process of determining, by the second node, the subframe in which the UE sends the uplink data corresponding to the PDCCH may be:
  • the second node sends a PDCCH to the UE in a subframe, and the PDCCH is used to schedule a specific uplink signal.
  • the second node determines, according to the subframe in which the PDCCH is sent, that the default subframe that the UE and the network side have agreed to send the uplink data corresponding to the PDCCH is an integer that the subframe n is greater than or equal to 4. .
  • the second node determines, according to the default subframe that the UE and the network side have agreed to, the uplink subframe in which the UE sends the uplink data corresponding to the PDCCH.
  • the subframe “+ belongs to the uplink subframe in the valid subframe group.
  • the second node acquires the uplink data from a subframe in which the determined uplink data corresponding to the PDCCH is sent by the UE.
  • the signal transmission method provided in this embodiment configures a valid subframe group carrying a specific uplink signal for each node, so that multiple nodes can simultaneously serve the same UE with dual-link receiving capability and single-chain transmission capability.
  • a UE can send a specific uplink signal corresponding to the node in a valid subframe group corresponding to each node, so that the uplink of different nodes can be performed.
  • the signals are separated, and the uplink signals can be sent to multiple nodes at the same time, realizing timely feedback of the uplink signals, and improving the reliability of the communication system.
  • the timing relationship between the new PDSCH and the ACK/NACK, the timing relationship between the PDCCH and the PUSCH, and the aperiodic SRS are designed, so that even if the uplink subframes belonging to different nodes are limited, The UE can still perform normal and timely uplink transmission.
  • the embodiment of the invention provides a signal transmission method, as shown in FIG. 9, which includes:
  • the user equipment UE receives, by the first node, configuration information of a valid subframe group that is used by the first node to carry a specific uplink signal, where each of the valid subframe groups is composed of M consecutive subframes, where M is a positive integer.
  • the specific uplink signal includes an uplink signal attributed to the first node or an uplink signal attributed to the second node.
  • the first node and the second node serve the UE at the same time, and the effective subframe group for carrying the uplink signal of the first node and the uplink for carrying the second node
  • the effective subframe group of the signal is different.
  • the configuration information of the valid subframe group includes: an effective subframe group pattern and/or an effective time/duration of the effective subframe group pattern.
  • M is equal to 5 or 4.
  • M is equal to 5; when the downlink-uplink transition point period is 10 milliseconds, M is equal to 10.
  • M when the uplink and downlink configuration is 0, 1, or 2, M is equal to 5; when the uplink and downlink configuration is 3, 4, 5, or 6, M is equal to 10.
  • the specific uplink signal includes an ACK/NACK corresponding to the P D S C H , and the method in this embodiment may include the following steps 602 and 603:
  • the UE receives the PDSCH sent by the first node or the second node, and determines a valid subframe group that is used by the configuration information to send the ACK/NACK corresponding to the PDSCH.
  • the method for the UE to determine the effective subframe group of the ACK/NACK corresponding to the PDS CH may be:
  • the UE receives the PDSCH in the subframe "- ⁇ , which is an integer greater than or equal to 4.
  • the UE determines that the default uplink subframe of the ACK/NACK information of the PDSCH is a subframe.
  • the ACK/NACK information of the PDSCH sent by the UE is a specific uplink signal.
  • the subframe after the PDSCH is transmitted is the default uplink subframe.
  • the UE determines an uplink subframe in which the ACK/NACK information of the PDSCH is transmitted.
  • the subframe "belongs to an uplink subframe within the valid subframe group, determining that the subframe is sent"
  • the subframe /i + M is the subframe that is delayed by the first subframe.
  • the UE sends an ACK/NACK corresponding to the PDSCH in a valid subframe group indicated by the configuration information.
  • the specific uplink signal may be uplink data scheduled by the node.
  • the method in this embodiment may include the following steps 604 and 605:
  • the UE receives the PDCCH sent by the first node or the second node, and determines a valid subframe group that sends the uplink data corresponding to the PDCCH.
  • the method for determining a valid subframe group of the uplink data corresponding to the PDCCH may be:
  • the UE receives a PDCCH in a subframe, and the PDCCH is used to schedule uplink data.
  • the uplink data of the PDCCH scheduling may include a PUSCH or an aperiodic SRS.
  • the default subframe of the data is a subframe "+", which is an integer greater than or equal to 4. .
  • the default subframe is determined according to the timing between the PDCCH and the uplink signal predefined by the standard, that is, according to the determination.
  • the first subframe after the PDCCH is sent is a default subframe for transmitting the uplink data corresponding to the PDCCH.
  • the UE determines, according to the default subframe that the UE and the network side have agreed to, an uplink subframe that transmits uplink data corresponding to the PDCCH.
  • the subframe “+ belongs to an uplink subframe in the effective subframe group.
  • determining to transmit the specific uplink signal in the subframe "+ when the subframe "+ does not belong to the uplink subframe in the valid subframe group determining to send the specific in the subframe "+ + M "
  • the uplink signal, the subframe "+ + M belongs to an uplink subframe within the effective subframe group closest to the subframe, and is a positive integer.
  • the signal transmission method provided by the embodiment of the present invention configures a valid subframe group carrying a specific uplink signal for each node, so that multiple nodes can simultaneously serve the same UE with dual-link receiving capability and single-chain transmission capability, and
  • the UE can only send a specific uplink signal corresponding to the node in the effective subframe group corresponding to each node, so that the uplink signals of different nodes can be distinguished.
  • the uplink signal can be sent to multiple nodes at the same time, and the timely feedback of the uplink signal is realized, thereby improving the reliability of the communication system.
  • the timing relationship between the new PDSCH and the ACK/NACK, the timing relationship between the PDCCH and the PUSCH, and the aperiodic SRS are designed, so that even if the uplink subframes belonging to different nodes are limited, The UE can still perform normal and timely uplink transmission.
  • the embodiment of the present invention provides a node, which is applied to a wireless communication system, where the node is a first node, as shown in FIG.
  • the configuration unit 71 is configured to configure a valid subframe group for carrying a specific uplink signal, where each of the valid subframe groups is composed of M consecutive subframes, where M is a positive integer; the specific uplink signal includes a attribution An uplink signal of the first node or an uplink signal belonging to the second node;
  • the sending unit 72 is configured to send, to the user equipment UE, configuration information of the valid subframe group configured by the configuration unit 71, so that the UE sends the valid subframe group indicated by the configuration information.
  • a specific uplink signal where the first node and the second node are the same Serving the UE, the effective subframe group for carrying the uplink signal of the first node and the effective subframe group for carrying the uplink signal of the second node are different.
  • the node when the specific uplink signal includes an uplink signal that belongs to the first node, the node further includes:
  • the receiving unit 73 is configured to receive, after the sending unit 72 sends the configuration information of the valid subframe group to the user equipment UE, the specific one sent by the UE in the valid subframe group configured by the configuration unit 71. Uplink signal.
  • the sending unit 72 is further configured to:
  • the configuration unit 71 configures a valid subframe group for carrying a specific uplink signal, sending configuration information of the valid subframe group configured by the configuration unit 71 to the second node, so that the second The node receives the specific uplink signal sent by the UE in the valid subframe group indicated by the configuration information.
  • the specific uplink signal includes an ACK/NACK corresponding to the physical downlink shared channel PDSCH;
  • the sending unit 72 sends the PDSCH to the UE in a subframe nk m , where the The k m is an integer greater than or equal to 4, the receiving unit 73 is further configured to: determine, by the UE, a default subframe n that is agreed by the network side to send an ACK/NACK corresponding to the PDSCH;
  • the ACK/NACK corresponding to the PDSCH is obtained from the subframe n;
  • the ACK/NACK corresponding to the PDSCH is obtained from the subframe n+kxM, where the subframe n+kxM is an uplink subframe belonging to the effective subframe group closest to the subframe n, k Is a positive integer.
  • the specific uplink signal includes uplink data
  • the sending unit 73 Before the receiving unit 73 receives the specific uplink signal sent by the UE in the effective subframe group configured by the configuration unit 71, the sending unit sends the UE to the UE in the subframe n.
  • the receiving unit 73 For the physical downlink control channel PDCCH of the specific uplink signal, the receiving unit 73 is further configured to:
  • the specific uplink signal scheduled by the PDCCH is obtained from the subframe n+k u ;
  • the specific uplink signal scheduled by the PDCCH is obtained from the subframe n+k u +kxM, where
  • the subframe n+k u +kxM is an uplink subframe belonging to the effective subframe group closest to the subframe n+k u , and k is a positive integer.
  • the configuration information of the valid subframe group sent by the sending unit 72 includes: an effective subframe pattern and/or an effective time of the effective subframe pattern; the effective subframe pattern indicates that the allocation is in milliseconds.
  • the valid subframe group in the period is a positive integer.
  • configuration unit 71 is further configured to:
  • M is equal to 5 or 4.
  • M is equal to 5; or, when the downlink up transition point period is 10 milliseconds, M is equal to 10.
  • M when the uplink and downlink configuration is 0, 1, or 2, M is equal to 5; or, when the uplink and downlink configuration is 3, 4, 5, or 6, M is equal to 10.
  • Another aspect of the present invention provides a node, which is applied to a wireless communication system, where the node is a first node, as shown in FIG. 12, and includes:
  • the processor 81 is configured to configure a valid subframe group for carrying a specific uplink signal, where each of the valid subframe groups is composed of M consecutive subframes, where M is a positive integer; An uplink signal of the first node or an uplink signal belonging to the second node;
  • the transmitter 82 is configured to send, to the user equipment UE, configuration information of the valid subframe group configured by the processor 81, so that the UE sends the valid subframe group indicated by the configuration information.
  • a specific uplink signal where the first node and the second node serve the UE at the same time, and a valid subframe group for carrying the uplink signal of the first node and a second subframe for carrying the second node
  • the effective subframe group of the uplink signal is different.
  • the node when the specific uplink signal includes an uplink signal that belongs to the first node, the node further includes:
  • a receiver 83 configured to receive, after the transmitter 82 sends the configuration information of the valid subframe group to the user equipment UE, the specific one sent by the UE in a valid subframe group configured by the processor 81. Uplink signal.
  • the transmitter 82 is further configured to:
  • the second node After the processor 81 is configured to carry a valid subframe group of a specific uplink signal, The second node sends the configuration information of the valid subframe group configured by the processor 81, so that the second node receives the UE sent by the valid subframe group indicated by the configuration information.
  • the specific uplink signal After the processor 81 is configured to carry a valid subframe group of a specific uplink signal, The second node sends the configuration information of the valid subframe group configured by the processor 81, so that the second node receives the UE sent by the valid subframe group indicated by the configuration information.
  • the specific uplink signal After the processor 81 is configured to carry a valid subframe group of a specific uplink signal.
  • the specific uplink signal includes an ACK/NACK corresponding to the physical downlink shared channel PDSCH;
  • the transmitter 82 transmits the PDSCH to the UE in subframe nk m, wherein k m is an integer greater than or equal to 4, then the receiver 83 is also used to:
  • the ACK/NACK corresponding to the PDSCH is obtained from the subframe n;
  • the ACK/NACK corresponding to the PDSCH is obtained from the subframe n+kxM, where the subframe n+ kxM is an uplink subframe belonging to the effective subframe group closest to the subframe n, and k is a positive integer.
  • the specific uplink signal includes uplink data
  • the sending unit sends the subframe to the UE for scheduling in the subframe n.
  • the physical downlink control channel PDCCH of the specific uplink signal the receiver 83 is further configured to:
  • the specific uplink signal of the PDCCH scheduling is obtained from the subframe n+k u +kxM, where
  • the subframe n+k u +kxM is an uplink subframe belonging to the effective subframe group closest to the subframe n+k u , and k is a positive integer.
  • the configuration information of the valid subframe group sent by the transmitter 82 includes: an effective subframe pattern and/or an effective time of the effective subframe pattern; the effective subframe pattern indicates that the allocation is in milliseconds.
  • the valid subframe group in the period is a positive integer.
  • processor 81 is further configured to:
  • M is equal to 5 or 4.
  • M is equal to 5; or, when the downlink up transition point period is 10 milliseconds, M is equal to 10.
  • M when the uplink and downlink configuration is 0, 1, or 2, M is equal to 5; or, when the uplink and downlink configuration is 3, 4, 5, or 6, M is equal to 10.
  • the node provided by the embodiment of the present invention configures a valid subframe group carrying a specific uplink signal for each node, so that multiple nodes can simultaneously serve the same UE with dual-link receiving capability and single-chain transmission capability, and existing In the technology, the UE can only send the uplink signal of one node, and the UE can send the specific uplink signal corresponding to the node in the effective subframe group corresponding to each node, so that the uplink signals of different nodes can be distinguished. At the same time, the uplink signal is sent to multiple nodes, and the timely feedback of the uplink signal is realized, which improves the reliability of the communication system.
  • the timing relationship between the new PDSCH and the ACK/NACK, the timing relationship between the PDCCH and the PUSCH, and the aperiodic SRS are designed, so that even if the uplink subframes belonging to different nodes are limited, The UE can still perform normal and timely uplink transmission.
  • the embodiment of the invention provides a node, which is applied to a wireless communication system, and the node is used as a second node. As shown in FIG. 13, the node includes:
  • the first receiving unit 91 is configured to receive, by the first node, configuration information of a valid subframe group for carrying a specific uplink signal, where each of the valid subframe groups is composed of M consecutive subframes, where M is positive An integer; the specific uplink signal includes an uplink signal attributed to the second node;
  • the second receiving unit 92 is configured to receive the specific uplink signal that is sent by the user equipment UE in the valid subframe group indicated by the configuration information received by the first receiving unit 91, where the first node and the The second node simultaneously serves the UE.
  • the specific uplink signal includes an ACK/NACK corresponding to the physical downlink shared channel PDSCH, and the node further includes: a sending unit 93;
  • the sending unit 93 receives the specific uplink signal sent by the user equipment UE in the valid subframe group indicated by the configuration information before the second receiving unit 92, the subframe nk m is sent to the UE.
  • the second receiving unit 92 is further configured to:
  • the indication is valid.
  • the uplink subframe in the subframe group, the ACK/NACK corresponding to the PDSCH is obtained from the subframe n;
  • the ACK/NACK corresponding to the PDSCH is obtained from the subframe n+kxM, where
  • the subframe n+kxM is an uplink subframe belonging to the effective subframe group closest to the subframe n, and k is a positive integer.
  • the specific uplink signal includes uplink data
  • the node further includes: a sending unit 93;
  • the sending unit 93 receives the specific uplink signal sent by the user equipment UE in the valid subframe group indicated by the configuration information, the sending unit 93 sends the subframe n to the UE.
  • the second receiving unit 92 is further configured to:
  • the PDCCH scheduling is obtained from the subframe n+k u +kxM a specific uplink signal, where the subframe n+k u +kxM is an uplink subframe belonging to the effective subframe group closest to the subframe n+k u , and k is a positive integer.
  • the configuration information of the valid subframe group received by the first receiving unit 91 includes: an effective subframe pattern and/or an effective time of the effective subframe pattern; the effective subframe pattern refers to Shown is the effective subframe group in the millisecond allocation period, which is a positive integer.
  • M is equal to 5 or 4.
  • M is equal to 5; or, when the downlink up transition point period is 10 milliseconds, M is equal to 10.
  • M when the uplink and downlink configuration is 0, 1, or 2, M is equal to 5; or, when the uplink and downlink configuration is 3, 4, 5, or 6, M is equal to 10.
  • Another aspect of the present invention further provides a node, which is applied to a wireless communication system, where the node is a second node.
  • the node may include:
  • the receiver 1001 is configured to receive, by the first node, configuration information of a valid subframe group that is used by the first node to carry a specific uplink signal, where each of the valid subframe groups is composed of M consecutive subframes, where M is a positive integer;
  • the specific uplink signal includes an uplink signal that belongs to the second node, and the processor 1002 is configured to determine, according to the configuration information received by the receiver 1001, the effective subframe group for carrying a specific uplink signal;
  • the receiver 1001 is further configured to receive, in the valid subframe group determined by the processor 1002, the specific uplink signal sent by the user equipment UE in the valid subframe group indicated by the configuration information; The first node and the second node simultaneously serve the UE.
  • the specific uplink signal includes an ACK/NACK corresponding to the physical downlink shared channel PDSCH
  • the node further includes: a transmitter 1003; before the specific uplink signal sent in the valid subframe group, in the subframe
  • the receiver 1001 is further configured to:
  • the ACK/NACK corresponding to the PDSCH is obtained from the subframe n;
  • the ACK/NACK corresponding to the PDSCH is obtained from the subframe n+kxM, where The subframe n+kxM is an uplink subframe belonging to the effective subframe group closest to the subframe n, and k is a positive integer.
  • the specific uplink signal includes uplink data
  • the node further includes: sending, by the transmitter 1003, the specific uplink signal sent in the subframe group to the UE in the subframe n for scheduling
  • the physical downlink control channel PDCCH of the specific uplink signal, the receiver 1001 is further configured to:
  • the specific uplink of the PDCCH scheduling is obtained from the subframe n+k u signal;
  • the configuration information of the effective subframe group received by the receiver 1001 includes: an effective subframe pattern and/or an effective time of the effective subframe pattern; and the effective subframe pattern indicates an XM millisecond allocation period A valid subframe group within, which is a positive integer.
  • M is equal to 5 or 4.
  • M is equal to 5; or, when the downlink up transition point period is 10 milliseconds, M is equal to 10.
  • M when the uplink and downlink configuration is 0, 1, or 2, M is equal to 5; or, when the uplink and downlink configuration is 3, 4, 5, or 6, M is equal to 10.
  • the node provided by the embodiment of the present invention configures a valid subframe group carrying a specific uplink signal for each node, so that multiple nodes can simultaneously serve the same UE with dual-link receiving capability and single-chain transmission capability, and existing In the technology, the UE can only send the uplink signal of one node, and the UE can send the specific uplink signal corresponding to the node in the effective subframe group corresponding to each node, so that the uplink signals of different nodes can be distinguished. At the same time, the uplink signal is sent to multiple nodes, and the timely feedback of the uplink signal is realized, which improves the reliability of the communication system.
  • the timing relationship between the new PDSCH and the ACK/NACK, the timing relationship between the PDCCH and the PUSCH, and the aperiodic SRS are designed, so that even if the uplink subframes belonging to different nodes are limited, The UE can still perform normal and timely uplink transmission.
  • An embodiment of the present invention provides a UE, as shown in FIG. 15, including:
  • the receiving unit 1101 is configured to receive, by the first node, configuration information of a valid subframe group that is used by the first node to carry a specific uplink signal, where each of the valid subframe groups is composed of M consecutive subframes, where M is a positive integer;
  • the specific uplink signal includes an uplink message attributed to the first node Number or an uplink signal attributed to the second node;
  • the sending unit 1102 is configured to send the specific uplink signal in the valid subframe group indicated by the configuration information received by the receiving unit 1101; wherein, the first node and the second node simultaneously serve The UE, the effective subframe group for carrying the uplink signal of the first node, and the effective subframe group for carrying the uplink signal of the second node are different.
  • the specific uplink signal includes an ACK/NACK corresponding to the physical downlink shared channel PDSCH;
  • the sending unit 1102 transmitting, by the sending unit 1102, the specific uplink signal in the valid subframe group indicated by the configuration information received by the receiving unit 1101, when the first node or the second node is in a subframe nk m direction
  • the sending unit is further configured to:
  • the ACK/NACK corresponding to the PDSCH is sent in the subframe n;
  • the ACK/NACK corresponding to the PDSCH is sent in the subframe n+kxM, where
  • the sub-frame n+kxM is the uplink subframe belonging to the effective subframe group closest to the subframe n, and k is a positive integer.
  • the specific uplink signal includes uplink data
  • the first node or the second node before the transmitting unit 1102 transmits the specific uplink signal in the valid subframe group indicated by the configuration information received by the receiving unit 1101 Sending, by the subframe n, the physical downlink control channel PDCCH for scheduling the specific uplink signal to the UE, where the sending unit is further configured to:
  • the specificity of the PDCCH scheduling is sent in the subframe n+k u Uplink signal
  • the PDCCH scheduling is sent in the subframe n+k u +kxM a specific uplink signal, where the subframe n+k u +kxM is an uplink subframe belonging to the effective subframe group closest to the subframe n+k u , and k is a positive integer.
  • the configuration information of the valid subframe group received by the receiving unit 1101 includes: an effective subframe pattern and/or an effective time of the effective subframe pattern.
  • M is equal to 5 or 4.
  • M is equal to 5; or, when the downlink up transition point period is 10 milliseconds, M is equal to 10.
  • M when the uplink and downlink configuration is 0, 1, or 2, M is equal to 5; or, when the uplink and downlink configuration is 3, 4, 5, or 6, M is equal to 10.
  • Another aspect of the present invention further provides a UE, as shown in FIG. 16, including: a receiver 1201, configured to receive configuration information of a valid subframe group sent by a first node for carrying a specific uplink signal;
  • Each of the valid subframe groups is composed of M consecutive subframes, where M is a positive integer;
  • the specific uplink signal includes an uplink signal that belongs to the first node or an uplink signal that belongs to the second node;
  • the processor 1202 is configured to determine, according to the configuration information received by the receiver 1201, a valid subframe group for carrying the specific uplink signal;
  • a transmitter 1203 configured to send the specific uplink signal in the valid subframe group determined by the processor 1202, where the first node and the second node serve the UE at the same time,
  • the effective subframe group carrying the uplink signal of the first node is different from the effective subframe group for carrying the uplink signal of the second node.
  • the specific uplink signal includes an ACK/NACK corresponding to the physical downlink shared channel PDSCH;
  • the sending unit is further used to:
  • the ACK/NACK corresponding to the PDSCH is sent in the subframe n;
  • the ACK/NACK corresponding to the PDSCH is sent in the subframe n+kxM, where the subframe n+kxM For the uplink subframe belonging to the effective subframe group closest to the subframe n, k is a positive integer.
  • the specific uplink signal includes uplink data
  • the first node or the second node is in the subframe n to the UE before the transmitter 1203 transmits the specific uplink signal in the valid subframe group determined by the processor 1202.
  • the specific uplink signal scheduled by the PDCCH is sent in the subframe n+k u ;
  • the specific uplink signal of the PDCCH scheduling is sent in the subframe n+k u +kxM, where
  • the sub-frame n+k u +kxM is the uplink subframe belonging to the effective subframe group closest to the subframe n+k u , and k is a positive integer.
  • the configuration information of the valid subframe group received by the receiver 1201 includes: an effective subframe pattern and/or an effective time of the effective subframe pattern.
  • M is equal to 5 or 4.
  • M is equal to 5; or, when the downlink up transition point period is 10 milliseconds, M is equal to 10.
  • M when the uplink and downlink configuration is 0, 1, or 2, M is equal to 5; or, when the uplink and downlink configuration is 3, 4, 5, or 6, M is equal to 10.
  • the UE provided by the embodiment of the present invention configures a valid subframe group carrying a specific uplink signal for each node, so that multiple nodes can simultaneously serve the same UE with dual-link receiving capability and single-chain transmission capability, and existing In the technology, the UE can only send the uplink signal of one node, and the UE can send the specific uplink signal corresponding to the node in the effective subframe group corresponding to each node, so that the uplink signals of different nodes can be distinguished. At the same time, the uplink signal is sent to multiple nodes, and the timely feedback of the uplink signal is realized, which improves the reliability of the communication system.
  • the timing relationship between the new PDSCH and the ACK/NACK, the timing relationship between the PDCCH and the PUSCH, and the aperiodic SRS are designed, so that even if the uplink subframes belonging to different nodes are limited, The UE can still perform normal and timely uplink transmission.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the modules or units is only a logical function division.
  • there may be another division manner for example, multiple units or components may be used. Combined or can be integrated into another system, or some features can be ignored, or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.
  • the units described as separate components may or may not be physically separated, and the components displayed as the units may or may not be physical units, that is, may be located at one place, or may be distributed to a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated in In a unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

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Abstract

L'invention porte sur un procédé et un dispositif d'émission de signal. La présente invention peut renvoyer un signal de liaison montante à temps et améliorer la fiabilité d'un système de communication. Le procédé selon la présente invention comprend principalement les opérations suivantes : un premier nœud configure un groupe de trames valides utilisé pour véhiculer un signal de liaison montante spécifique, chaque groupe de trames valides étant formé par M trames continues, M étant un entier positif, et le signal de liaison montante spécifique comprenant un signal de liaison montante véhiculé sur le premier nœud ou un signal de liaison montante appartenant à un second nœud ; et envoi d'informations de configuration du groupe de trames valides à un UE, pour que l'UE envoie le signal de liaison montante spécifique dans le groupe de trames valides indiqué par les informations de configuration, le premier nœud et le second nœud desservant tous les deux l'UE, et un groupe de trames valides utilisé pour véhiculer un signal de liaison montante du premier nœud étant différent d'un groupe de trames valides utilisé pour véhiculer un signal de liaison montante du second nœud. Des modes de réalisation de la présente invention sont principalement appliqués dans des processus d'émission de signal.
PCT/CN2013/073088 2013-03-22 2013-03-22 Procédé et dispositif d'émission de signal WO2014146304A1 (fr)

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