WO2017198021A1 - Procédé et dispositif de communication sans fil - Google Patents

Procédé et dispositif de communication sans fil Download PDF

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Publication number
WO2017198021A1
WO2017198021A1 PCT/CN2017/080767 CN2017080767W WO2017198021A1 WO 2017198021 A1 WO2017198021 A1 WO 2017198021A1 CN 2017080767 W CN2017080767 W CN 2017080767W WO 2017198021 A1 WO2017198021 A1 WO 2017198021A1
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WO
WIPO (PCT)
Prior art keywords
subframe
wireless signal
time window
time
target
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PCT/CN2017/080767
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English (en)
Chinese (zh)
Inventor
张晓博
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上海朗帛通信技术有限公司
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Publication of WO2017198021A1 publication Critical patent/WO2017198021A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present invention relates to a method and apparatus for a wireless communication system, and more particularly to a short delay transmission method and apparatus in a cellular network system.
  • an MBSFNMBSFN Multicast Broadcast Single Frequency Network subframe
  • a radio frame contains 10 subframes, numbered ⁇ #0, #1, #2, #3, #4, #5, #6, #7, #8 , #9 ⁇ , in these sub-frames, taking into account the transmission of the system broadcast information, taking the FDD (Frequency Division Duplex) mode as an example, only ⁇ #1, #2, #3, #6,# 7, #8 ⁇ can be configured as an MBSFN subframe.
  • FDD Frequency Division Duplex
  • the MBSFN sub-frame is mainly used to transmit MBMS (Multimedia Broadcast/Multicast Service) services.
  • MBMS Multimedia Broadcast/Multicast Service
  • the broadcast multicast service cannot be multiplexed with other unicast services.
  • a short-delay UE (User Equipment) is supported, and a short-delay UE uses a shorter TTI (Transmission Time Interval), and the shorter TTI is less than 1 ms.
  • TTI Transmission Time Interval
  • the short TTI occupies only two OFDM (Orthogonal Frequency Division Multiplexing) symbols, about 0.14 ms.
  • the inventors found through research that how to support short TTI transmission and support MBMS services in one system at the same time is a problem to be solved.
  • the inventors have found through further research that one possible solution is to design shorter TTI transmissions and MBMS services at the sub-frame level as time divisions.
  • the MBSFN subframe occupied by the MBMS service cannot transmit the data of the short delay user, which causes delay for the short delay service.
  • the system There are many MBMS services in the middle, and more MBSFN subframes are allocated.
  • the delay is more than several milliseconds, which is far greater than the length of one TTI. In this case, the user's delay cannot be effectively reduced. Therefore, in order to meet the requirement of the shortening delay, it is necessary to support the transmission of the short delay service in the MBSFN subframe.
  • the present invention provides a solution. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments of the present application may be combined with each other arbitrarily. For example, features in embodiments and embodiments in the UE of the present application may be applied to a base station, and vice versa.
  • the invention discloses a method in a UE for short delay communication, which comprises the following steps:
  • Step A Receive first information, the first information being used to determine a first target subframe set
  • Step B Receive the first wireless signal in the first time window.
  • the subframe in the first target subframe set is allocated to the MBSFN, and the duration of the first time window is less than or equal to 0.5 milliseconds, and the transport channel corresponding to the first wireless signal is a transmission other than the MCH. channel.
  • the first target subframe set includes one or more subframes, the first time window belongs to a first subframe, and the first subframe is one subframe of the first target subframe set.
  • the terminal can receive downlink data in a subframe allocated to the MBSFN Area, that is, the terminal realizes that the subframe allocated to the MBSFN Area is actually used for unicast. Data business.
  • the subframe in the first target subframe set is actually allocated as an MBSFN subframe.
  • the significant difference between the above method and the 3GPP R10 version is that the downlink unicast data service and the MBMS service can coexist in one subframe.
  • the first information includes an MBSFN-SubframeConfig IE (Infomration Element), and the first target subframe set is indicated by the MBSFN-SubframeConfig IE.
  • MBSFN-SubframeConfig IE Information Element
  • the first information is indicated by higher layer signaling.
  • the transport channel for carrying the first wireless signal is a DL-SCH (DownLink Shared Channel).
  • the duration of the first signal is equal to the time occupied by the first time window in the time domain.
  • the step B further includes The following steps:
  • Step B0 Receiving first signaling, the first signaling is used to determine ⁇ the first time window, scheduling information corresponding to the first wireless signal, the first wireless signal is in the first time window At least one of the frequency domain resources occupied in .
  • the scheduling information includes ⁇ MCS (Modulation and Coding Status), NDI (New Data Indicator), RV (Redundancy Version, Redundancy Version), HARQ (Hybrid Automatic Repeat reQuest) Retransmit the request) at least one of the process numbers ⁇ .
  • MCS Modulation and Coding Status
  • NDI New Data Indicator
  • RV Redundancy Version
  • HARQ Hybrid Automatic Repeat reQuest
  • the first signaling is physical layer signaling.
  • the first signaling includes one or two DCI (Downlink Control Information).
  • DCI Downlink Control Information
  • the first signaling is a DL-grant DCI.
  • the method further includes the following steps:
  • Step C Transmitting the second wireless signal in the second time window.
  • the second wireless signal is used to determine whether a transport block in the first wireless signal is correctly decoded.
  • the duration of the second time window is less than or equal to 0.5 milliseconds.
  • the second wireless signal is physical layer signaling.
  • the physical layer channel carrying the second wireless signal includes a UCI (Uplink Control Information).
  • UCI Uplink Control Information
  • the first time window is located within a duration of the first m OFDM symbols in the first subframe, and the m is a positive value less than or equal to 3. Integer.
  • the first wireless signal occupies Q1 CCEs (Control Channel Element), and the Q1 is a positive integer.
  • the first signaling is used to determine the Q1 CCEs.
  • the first wireless signal occupies Q2 REs, and the Q2 is a positive integer.
  • the first signaling is used to determine the Q2 REs.
  • the determining is used to determine that the Q2 REs are used to determine a time-frequency resource location occupied by the Q2 REs.
  • the first signaling is transmitted in the first time window.
  • At least one RE of the RE occupied by the first wireless signal and the RE occupied by the first signaling is different.
  • the first time window is located outside a duration of the first m OFDM symbols in the first subframe, and the m is a positive value less than or equal to 3. Integer.
  • the OFDM symbol occupied by the first wireless signal adopts an extended E-CP (Extended Cyclic Prefix).
  • the first wireless signal occupies Q3 PMCH (Physical Multicast Channel), and the Q3 is a positive integer.
  • the first signaling is used to determine the Q3 PMCHs.
  • the being used to determine the Q3 PMCHs is used to determine a time-frequency resource location occupied by the Q3 PMCHs.
  • the step A further includes the following steps:
  • Step A1 Receiving second information, the second information being used to determine at least one of ⁇ a second target subframe set, a time-frequency resource within the subframe ⁇ .
  • the second target subframe set includes one or more subframes, the second target subframe set belongs to the first target subframe set, and the first subframe is the second target subframe set.
  • the time-frequency resources in the subframe in the subframe of the second target subframe set are reserved to a transport channel other than the MCH.
  • the time-frequency resource occupied by the first wireless signal belongs to a time-frequency resource in the subframe in a position of the first subframe.
  • the second information is indicated by physical layer signaling.
  • the second information is indicated by cell-specific physical layer signaling.
  • the second information is indicated by high layer signaling common to the cell.
  • the second information indicates the second target subframe set from the first target subframe set.
  • the first signaling indicates, from a time-frequency resource in the subframe, a location of a time-frequency resource occupied by the first wireless signal in the first subframe.
  • the second information indicates a time-frequency resource in the subframe
  • the second target subframe set is the first target subframe set.
  • the OFDM symbol in the time-frequency resource in the subframe in the subframe of the second target subframe set adopts an E-CP.
  • the invention discloses a method in a UE for MBMS, which comprises the following steps:
  • Step A Receive first information and second information, the first information is used to determine a first target subframe set, and the second information is used to determine ⁇ second target subframe set, time-frequency resources within the subframe ⁇ At least one of them.
  • Step B Receive a third wireless signal in a third time window.
  • the subframe in the first target subframe set is allocated to the MBSFN.
  • the transport channel corresponding to the third wireless signal is an MCH.
  • the first target subframe set includes one or more subframes.
  • the second target subframe set includes one or more subframes, and the second target subframe set belongs to the first target subframe set.
  • the third time window belongs to a first subframe, and the first subframe is one of the second target subframe sets.
  • the time-frequency resources in the subframe in the subframe of the second target subframe set are reserved to a transport channel other than the MCH.
  • the time-frequency resource occupied by the third wireless signal is a time-frequency resource other than the time-frequency resource in the subframe in the third time window.
  • the third time window includes a time domain resource other than a duration of the first m OFDM symbols in the first subframe, the m being a positive integer less than or equal to 3.
  • the time-frequency resources in the subframe in the first subframe belong to the third time window in the time domain.
  • the modulation symbols in the third wireless signal are mapped to time-frequency resources outside the time-frequency resources in the subframe in the third time window by rate matching.
  • the subframe in the subframe of the second target subframe set The OFDM symbol in the intra-frequency resource is an extended CP.
  • the invention discloses a method in a base station for short delay communication, which comprises the following steps:
  • Step A Sending first information, the first information being used to determine the first target subframe set
  • Step B Send the first wireless signal in the first time window.
  • the subframe in the first target subframe set is allocated to the MBSFN, and the duration of the first time window is less than or equal to 0.5 milliseconds, and the transport channel corresponding to the first wireless signal is a transmission other than the MCH. channel.
  • the first target subframe set includes one or more subframes, the first time window belongs to a first subframe, and the first subframe is one subframe of the first target subframe set.
  • the first information includes an MBSFN-SubframeConfig IE, and the first target subframe set is indicated by the MBSFN-SubframeConfig IE.
  • the first information is indicated by higher layer signaling.
  • the transport channel used to carry the first wireless signal is a DL-SCH.
  • the duration of the first signal is equal to the time occupied by the first time window in the time domain.
  • the step B further includes the following steps:
  • Step B0 Sending first signaling, the first signaling is used to determine ⁇ the first time window, scheduling information corresponding to the first wireless signal, the first wireless signal is in the first time window At least one of the frequency domain resources occupied in .
  • the scheduling information includes at least one of ⁇ MCS, NDI, RV, HARQ process number ⁇ .
  • the first signaling is physical layer signaling.
  • the first signaling includes one or two DCIs.
  • the first signaling is a downlink grant DCI.
  • the method further includes the following steps:
  • Step C Receive a second wireless signal in a second time window.
  • the second wireless signal is used to determine a transport block in the first wireless signal Whether it is correctly decoded.
  • the duration of the second time window is less than or equal to 0.5 milliseconds.
  • the second wireless signal is a physical layer signal.
  • the physical layer channel carrying the second wireless signal includes a UCI.
  • the first time window is located within a duration of the first m OFDM symbols in the first subframe, and the m is a positive value less than or equal to 3. Integer.
  • the first signaling is transmitted in the first time window.
  • the first time window is located outside a duration of the first m OFDM symbols in the first subframe, and the m is a positive value less than or equal to 3. Integer.
  • the OFDM symbol occupied by the first wireless signal adopts an extended E-CP.
  • the step A further includes the following steps:
  • Step A1 Transmitting second information, the second information being used to determine at least one of ⁇ a second target subframe set, a time-frequency resource within the subframe ⁇ .
  • the second target subframe set includes one or more subframes, the second target subframe set belongs to the first target subframe set, and the first subframe is the second target subframe set.
  • the time-frequency resources in the subframe in the subframe of the second target subframe set are reserved to a transport channel other than the MCH.
  • the time-frequency resource occupied by the first wireless signal belongs to a time-frequency resource in the subframe in a position of the first subframe.
  • the step B further includes the following steps:
  • Step B Send a third wireless signal in a third time window.
  • the transport channel corresponding to the third wireless signal is an MCH.
  • the third time window belongs to the first subframe.
  • the time-frequency resource occupied by the third wireless signal is a time-frequency resource other than the time-frequency resource in the subframe in the third time window.
  • the third time window includes a time domain resource other than a duration of the first m OFDM symbols in the first subframe, the m Is a positive integer less than or equal to 3.
  • the modulation symbol in the third wireless signal avoids occupying time-frequency resources in the subframe in the third time window by means of puncturing.
  • the modulation symbols in the third radio signal are mapped to time-frequency resources outside the time-frequency resources in the subframe in the third time window by means of rate matching. on.
  • the invention discloses a user equipment for short delay communication, which comprises the following modules:
  • a first receiving module configured to receive first information, the first information being used to determine a first target subframe set
  • a second receiving module for receiving the first wireless signal in the first time window.
  • the subframe in the first target subframe set is allocated to the MBSFN, and the duration of the first time window is less than or equal to 0.5 milliseconds, and the transport channel corresponding to the first wireless signal is a transmission other than the MCH. channel.
  • the first target subframe set includes one or more subframes, the first time window belongs to a first subframe, and the first subframe is one subframe of the first target subframe set.
  • the foregoing user equipment for short delay communication is characterized in that the first receiving module is further configured to receive second information, and the second information is used to determine ⁇ a second target subframe set, in a subframe. At least one of the time-frequency resources ⁇ .
  • the second target subframe set includes one or more subframes, the second target subframe set belongs to the first target subframe set, and the first subframe is the second target subframe set.
  • the time-frequency resources in the subframe in the subframe of the second target subframe set are reserved to a transport channel other than the MCH.
  • the time-frequency resource occupied by the first wireless signal belongs to a time-frequency resource in the subframe in a position of the first subframe.
  • the foregoing user equipment for short delay communication is characterized in that the second receiving module is further configured to receive first signaling, where the first signaling is used to determine ⁇ the first time window, And at least one of scheduling information corresponding to the first wireless signal, the frequency domain resource occupied by the first wireless signal in the first time window.
  • the scheduling information includes at least one of ⁇ MCS, NDI, RV, HARQ process number ⁇ .
  • the user equipment for short delay communication described above is characterized in that include:
  • a first transmitting module for transmitting the second wireless signal in the second time window.
  • the second wireless signal is used to determine whether a transport block in the first wireless signal is correctly decoded.
  • the foregoing user equipment for short delay communication is characterized in that the first time window is located within a duration of the first m OFDM symbols in the first subframe, and the m is less than or A positive integer equal to 3.
  • the foregoing user equipment for short delay communication is characterized in that the first time window is located outside the duration of the first m OFDM symbols in the first subframe, and the m is less than or A positive integer equal to 3.
  • the invention discloses a user equipment for MBMS, which comprises the following modules:
  • a third receiving module configured to receive the first information and the second information, the first information is used to determine a first target subframe set, and the second information is used to determine ⁇ a second target subframe set, within the subframe At least one of the time-frequency resources ⁇ .
  • a fourth receiving module for receiving the third wireless signal in the third time window.
  • the subframe in the first target subframe set is allocated to the MBSFN.
  • the transport channel corresponding to the third wireless signal is an MCH.
  • the first target subframe set includes one or more subframes.
  • the second target subframe set includes one or more subframes, and the second target subframe set belongs to the first target subframe set.
  • the third time window belongs to a first subframe, and the first subframe is one of the second target subframe sets.
  • the time-frequency resources in the subframe in the subframe of the second target subframe set are reserved to a transport channel other than the MCH.
  • the time-frequency resource occupied by the third wireless signal is a time-frequency resource other than the time-frequency resource in the subframe in the third time window.
  • the third time window includes a time domain resource other than a duration of the first m OFDM symbols in the first subframe, the m being a positive integer less than or equal to 3.
  • the invention discloses a base station device for short delay communication, which comprises the following modules:
  • a second transmitting module for transmitting the first information, the first information being used to determine the first target subframe set
  • a third transmitting module for transmitting the first wireless signal in the first time window.
  • the subframe in the first target subframe set is allocated to the MBSFN, and the duration of the first time window is less than or equal to 0.5 milliseconds, and the transport channel corresponding to the first wireless signal is a transmission other than the MCH. channel.
  • the first target subframe set includes one or more subframes, the first time window belongs to a first subframe, and the first subframe is one subframe of the first target subframe set.
  • the foregoing base station device for short delay communication is characterized in that the second sending module is further configured to send second information, where the second information is used to determine ⁇ a second target subframe set, in a subframe At least one of the time-frequency resources ⁇ .
  • the second target subframe set includes one or more subframes, the second target subframe set belongs to the first target subframe set, and the first subframe is the second target subframe set.
  • the time-frequency resources in the subframe in the subframe of the second target subframe set are reserved to a transport channel other than the MCH.
  • the time-frequency resource occupied by the first wireless signal belongs to a time-frequency resource in the subframe in a position of the first subframe.
  • the foregoing base station device for short delay communication is characterized in that the third sending module is further configured to send first signaling, where the first signaling is used to determine ⁇ the first time window, And at least one of scheduling information corresponding to the first wireless signal, the frequency domain resource occupied by the first wireless signal in the first time window.
  • the scheduling information includes at least one of ⁇ MCS, NDI, RV, HARQ process number ⁇ .
  • the foregoing base station device for short delay communication is characterized in that the third sending module is further configured to send a third wireless signal in a third time window.
  • the transport channel corresponding to the third wireless signal is an MCH.
  • the third time window belongs to the first subframe.
  • the time-frequency resource occupied by the third wireless signal is a time-frequency resource other than the time-frequency resource in the subframe in the third time window.
  • the third time window includes a time domain resource other than a duration of the first m OFDM symbols in the first subframe, the m being a positive integer less than or equal to 3.
  • the foregoing base station device for short delay communication is characterized in that:
  • a fifth receiving module for receiving the second wireless signal in the second time window.
  • the second wireless signal is used to determine whether a transport block in the first wireless signal is correctly decoded.
  • the above base station apparatus for short delay communication is characterized in that The first time window is located within a duration of the first m OFDM symbols in the first subframe, and the m is a positive integer less than or equal to 3.
  • the foregoing base station device for short delay communication is characterized in that the first time window is located outside the duration of the first m OFDM symbols in the first subframe, and the m is less than or A positive integer equal to 3.
  • the present invention has the following technical advantages over the prior art:
  • the present invention contemplates a method of transmitting short delay unicast traffic in MBSFN subframes, reducing transmission delay while remaining compatible with existing systems (supporting MBMS transmission).
  • the present invention minimizes the impact of system design due to the short delay unicast service supported by the MBSFN subframe, and improves the frequency band utilization of the system by multiplexing the MBMS service and the short delay unicast service in one subframe.
  • Figure 1 illustrates a flow chart of transceiving low latency data
  • Figure 2 illustrates a flow chart of the transmission and reception of MBMS data
  • FIG. 3 illustrates a schematic diagram of a time domain relationship between a first time window and a second time window
  • FIG. 4 illustrates a schematic diagram of a time domain relationship between a first time window and a third time window
  • FIG. 5 illustrates a structural block diagram of a user equipment for short delay
  • FIG. 6 illustrates a structural block diagram of a user equipment for MBMS
  • FIG. 7 illustrates a structural block diagram of a base station device
  • Embodiment 1 exemplifies a transceiving flowchart of low-latency data, as shown in FIG.
  • a base station N1 is a maintenance base station of a serving cell of UE U2, where U2 is a UE for short delay communication.
  • the first information is transmitted in step S10, the first signaling is transmitted in step S11, the first wireless signal is transmitted in the first time window in step S12, and received in the second time window in step S13.
  • Second wireless signal is transmitted.
  • the first information is received in step S20, the first signaling is received in step S21, the first wireless signal is received in the first time window in step S22, and is transmitted in the second time window in step S23.
  • Second wireless signal is transmitted in the second time window in step S23.
  • Embodiment 2 exemplifies a flow chart of transmission and reception of MBMS data, as shown in FIG.
  • base station N3 is the serving base station of the serving cell of UE U4, where U4 is the UE for MBMS.
  • the first information is transmitted in step S30
  • the second information is transmitted in step S31
  • the third wireless signal is transmitted in step S32.
  • the first information is received in step S40
  • the second information is received in step S41
  • the third wireless signal is received in step S42.
  • Embodiment 3 illustrates a schematic diagram of the time domain relationship of the first time window and the second time window, as shown in FIG.
  • the slanted line identifies the first time window and the back slash identifies the second time window.
  • the second time window is located after the first time window in the time domain.
  • the first time window is located within a duration of the first m OFDM symbols in the first subframe, and the m is a positive integer less than or equal to 3.
  • the first time window is located outside a duration of the first m OFDM symbols in the first subframe, and the m is a positive integer less than or equal to 3.
  • the second time window is located after the first time window and is inside the same subframe as the first time window.
  • the second time window is located in a second subframe, where the first time window is located in a first subframe, and the second subframe is a subframe subsequent to the first subframe.
  • Embodiment 4 illustrates a schematic diagram of the time domain relationship of the first time window and the third time window, as shown in FIG.
  • the diagonal line identifies the first time interval
  • the cross line identifies the second time interval
  • the thick line frame identifies the third time window.
  • the first subframe is composed of a first time interval and a third time window, the first time interval occupies within a duration of the first m OFDM symbols in the first subframe, m is a positive integer less than or equal to 3.
  • the first time window is located in the first time interval.
  • the first time window is located in the second time interval.
  • the first time window is the first time interval.
  • the first time window is the second time interval.
  • the first subframe includes 12 OFDM symbols, where 2 OFDM symbols located in the first time interval adopt a normal CP, and are located in the third time window.
  • the 10 OFDM symbols use E-CP.
  • the m is 2.
  • the frequency domain resource occupied by the first wireless signal is a part of the system bandwidth in FIG.
  • Embodiment 5 exemplifies a structural block diagram of a user equipment for short delay, as shown in FIG.
  • the processing device 100 in the UE is composed of a first receiving module 101, a second receiving module 102 and a first transmitting module 103.
  • the first receiving module 101 is configured to receive first information, where the first information is used to determine the first target subframe set; the second receiving module 102 is configured to receive the first wireless signal in the first time window; the first sending module 103 And for transmitting the second wireless signal in the second time window.
  • the subframe in the first target subframe set is allocated to the MBSFN, the duration of the first time window is less than or equal to 1 millisecond, and the transport channel corresponding to the first wireless signal is DL- SCH.
  • the first target subframe set includes one or more subframes, the first time window belongs to a first subframe, and the first subframe is one subframe of the first target subframe set.
  • the second wireless signal is used to determine if a transport block in the first wireless signal is correctly decoded.
  • the first information includes an MBSFN-SubframeConfig IE.
  • the first receiving module 101 is further configured to receive second information, where the second information is used to determine at least one of a ⁇ second target subframe set, a time-frequency resource in a subframe.
  • the second target subframe set includes one or more subframes, the second target subframe set belongs to the first target subframe set, and the first subframe is the second target subframe set.
  • the time-frequency resources in the subframe in the subframe of the second target subframe set are reserved to a transport channel other than the MCH.
  • the time-frequency resource occupied by the first wireless signal belongs to a time-frequency resource in the subframe in a position of the first subframe.
  • the second receiving module 102 is further configured to receive the first signaling,
  • the first signaling is used to determine ⁇ the first time window, scheduling information corresponding to the first wireless signal, at least one of frequency domain resources occupied by the first wireless signal in the first time window ⁇ one.
  • the scheduling information includes at least one of ⁇ MCS, NDI, RV, HARQ process number ⁇ .
  • the first information includes an MBSFN-SubframeConfig IE, and the first target subframe set is indicated by the MBSFN-SubframeConfig IE.
  • the first time window is a continuous time window and the duration is less than or equal to 0.5 milliseconds.
  • the first time window is located within a duration of the first m OFDM symbols in the first subframe, and the m is a positive integer less than or equal to 3.
  • the first time window is located outside a duration of the first m OFDM symbols in the first subframe, and the m is a positive integer less than or equal to 3.
  • Embodiment 6 exemplifies a structural block diagram of a user equipment for MBMS, as shown in FIG.
  • the processing device 200 in the UE is composed of a third receiving module 201 and a fourth receiving module 202.
  • the third receiving module 201 is configured to receive the first information and the second information
  • the fourth receiving module 202 is configured to receive the third wireless signal in the third time window.
  • the first information is used to determine a first target subframe set
  • the second information is used to determine at least one of ⁇ a second target subframe set, a time-frequency resource within the subframe ⁇ .
  • the subframes in the first target subframe set are allocated to the MBSFN.
  • the transport channel corresponding to the third wireless signal is an MCH.
  • the first target subframe set includes one or more subframes.
  • the second target subframe set includes one or more subframes, and the second target subframe set belongs to the first target subframe set.
  • the third time window belongs to a first subframe, and the first subframe is one of the second target subframe sets.
  • the time-frequency resources in the subframe in the subframe of the second target subframe set are reserved to a transport channel other than the MCH.
  • the time-frequency resource occupied by the third wireless signal is a time-frequency resource other than the time-frequency resource occupied by the first wireless signal in the subframe in the third time window.
  • the third time window includes a time domain resource other than a duration of the first m OFDM symbols in the first subframe, the m being a positive integer less than or equal to 2.
  • Embodiment 7 exemplifies a structural block diagram of a base station device, as shown in FIG.
  • the processing device 300 of the base station is composed of a second sending module 301, a third transmitting module 302 and a fifth receiving module 303.
  • the second sending module 301 is configured to send the first information, where the first information is used to determine the first target subframe set, the third sending module 302 is configured to send the first wireless signal in the first time window, and the fifth receiving module 303 And for receiving the second wireless signal in the second time window.
  • the first information is indicated by higher layer signaling, and the transport channel corresponding to the first wireless signal is a DL-SCH.
  • the second sending module 301 is further configured to send second information, where the second information is used to determine at least one of a ⁇ second target subframe set, a time-frequency resource in a subframe.
  • the third sending module 302 is further configured to send the first signaling, where the first signaling is used to determine the first time window, the scheduling information corresponding to the first wireless signal, At least one of a frequency domain resource occupied by the first wireless signal in the first time window.
  • the third sending module 302 is further configured to send the third wireless signal in the third time window.
  • the transport channel corresponding to the third wireless signal is an MCH.
  • the third time window belongs to the first subframe.
  • the time-frequency resource occupied by the third wireless signal is a time-frequency resource other than the time-frequency resource in the subframe in the third time window.
  • the third time window includes a time domain resource other than a duration of the first m OFDM symbols in the first subframe, the m being a positive integer less than or equal to 3.
  • the first time window is located within a duration of the first m OFDM symbols in the first subframe, and the m is a positive integer less than or equal to 3.
  • the first time window is located outside a duration of the first m OFDM symbols in the first subframe, and the m is a positive integer less than or equal to 3.
  • UEs and terminals include, but are not limited to, mobile phones, tablets, notebooks, vehicle communication devices, wireless sensors, network cards, Internet of things terminals, RFID terminals, NB-IOT terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC, enhanced MTC) terminals, data cards, network cards, car communication devices, low-cost mobile phones, low-cost tablets and other wireless communication devices.
  • the base station in the present invention includes, but is not limited to, a macro communication base station, a micro cell base station, a home base station, a relay base station, and the like.

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

Abstract

L'invention concerne un procédé et un dispositif de communication sans fil. Un UE reçoit des premières informations, puis reçoit un premier signal sans fil au cours d'une première fenêtre temporelle. Les premières informations sont utilisées pour déterminer un premier ensemble de sous-trames cibles, des sous-trames comprises dans le premier ensemble de sous-trames cibles sont attribuées à un MBSFN, et un canal de transmission correspondant au premier signal sans fil est un canal de transmission autre qu'un MCH. Le premier ensemble de sous-trames cibles comporte une ou plusieurs sous-trames, la première fenêtre temporelle appartient à une première sous-trame, et la première sous-trame est une sous-trame comprise dans le premier ensemble de sous-trames cibles. La présente invention est compatible avec une transmission de MBMS, et maximise donc la compatibilité avec les systèmes existants. La présente invention réduit également le plus possible le retard de transmission en communication de monodiffusion, et satisfait donc des exigences de délai court.
PCT/CN2017/080767 2016-05-15 2017-04-17 Procédé et dispositif de communication sans fil WO2017198021A1 (fr)

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