WO2016177177A1 - Procédés et dispositifs permettant d'envoyer et de recevoir des informations d'allocation de ressources pour une communication à intervalle de temps de transmission court - Google Patents

Procédés et dispositifs permettant d'envoyer et de recevoir des informations d'allocation de ressources pour une communication à intervalle de temps de transmission court Download PDF

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Publication number
WO2016177177A1
WO2016177177A1 PCT/CN2016/077539 CN2016077539W WO2016177177A1 WO 2016177177 A1 WO2016177177 A1 WO 2016177177A1 CN 2016077539 W CN2016077539 W CN 2016077539W WO 2016177177 A1 WO2016177177 A1 WO 2016177177A1
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Prior art keywords
short tti
tti communication
information
communication
format
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PCT/CN2016/077539
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English (en)
Chinese (zh)
Inventor
邹伟
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中兴通讯股份有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—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 application relates to, but is not limited to, the field of mobile communications, and in particular, to a method and apparatus for transmitting and receiving resource allocation information for short transmission time interval communication.
  • LTE Long Term Evolution
  • 3GPP International Organization for Standardization
  • Machine Type Communication In the future of mobile networks, the demand for business will continue to increase, and the number and variety of terminals will continue to grow exponentially. As one of the important scenes and technical means of 5G, Machine Type Communication (MTC) is receiving more and more attention. In general, there are four major requirements for inter-machine communication: massive connections, low power consumption, low latency, and high reliability. In terms of the number of connections, the future 5G system needs to support a user capacity of up to 300,000 to 3 million user devices per cell, covering 99.99% of the area; in terms of energy consumption, the 5G system needs to make the battery life of the user equipment.
  • massive connections massive connections, low power consumption, low latency, and high reliability.
  • the number of connections the future 5G system needs to support a user capacity of up to 300,000 to 3 million user devices per cell, covering 99.99% of the area; in terms of energy consumption, the 5G system needs to make the battery life of the user equipment.
  • the short transmission time interval access technology is to reduce the transmission time interval (TTI, LTE system). Transmission Time Interval), which minimizes processing delays and backhaul delays to support ultra-low latency requirements for certain services.
  • TTI transmission time interval
  • OFDM Orthogonal Frequency Division Multiplexing
  • Another method is to reduce the TTI length by reducing the number of OFDM symbols in a single TTI as currently discussed by 3GPP; the advantage of this method is that it can be fully compatible with existing LTE systems, and can perform short TTI directly in the legacy LTE system. Communication.
  • configuration information required for short TTI communication is necessary content for performing short TTI communication, and how to transmit configuration information required for short TTI communication is an urgent problem to be solved.
  • Embodiments of the present invention provide a method and apparatus for transmitting and receiving resource allocation information of short transmission time interval (TTI) communication, which can implement configuration information required for transmitting short TTI communication.
  • TTI transmission time interval
  • a method for transmitting resource allocation information for short transmission time interval communication comprising:
  • the base station notifies the resource allocation information for performing short TTI communication using a Physical Downlink Control Channel (PDCCH).
  • PDCH Physical Downlink Control Channel
  • the resource allocation information includes at least one of the following: the indication information of the short TTI communication, the indication information of the short TTI communication format, the indication information of the uplink resource of the short TTI communication, and the indication information of the downlink resource of the short TTI communication.
  • the indication information of each of the short TTI communication formats is a format number of a short TTI communication format.
  • the short TTI communication format is preset, and each format corresponds to a set of configuration information for performing short TTI communication.
  • the method further includes:
  • the base station transmits parameter information included in the short TTI communication format to one or more user equipments that use the short TTI communication format.
  • the parameter information included in the short TTI communication format is sent by a system broadcast message or a preset message; or the parameter information included in the short TTI communication format is agreed by a standard protocol.
  • the configuration information for performing the short TTI communication includes at least one of the following:
  • the length of the short TTI The length of the short TTI, the length of the dedicated control channel within each short TTI, the type of dedicated control channel within each short TTI, the location of the resources occupied by each dedicated control channel, and the modulation coding used by each dedicated control channel information.
  • the dedicated control channel includes at least one of a short TTI dedicated physical downlink control channel (PDCCH), a short TTI dedicated physical hybrid automatic repeat indication channel (PHICH), and a short TTI dedicated physical uplink control channel (PUCCH).
  • PDCH short TTI dedicated physical downlink control channel
  • PHICH short TTI dedicated physical hybrid automatic repeat indication channel
  • PUCCH physical uplink control channel
  • the base station uses the PDCCH to notify the resource allocation information of the short TTI communication, including:
  • the base station transmits indication information of short TTI communication and/or indication information of a short TTI communication format by using a reservation option of an adjustment coding method (MCS) field in a downlink control information (DCI) information element in the PDCCH.
  • MCS adjustment coding method
  • the base station uses the PDCCH to notify the resource allocation information of the short TTI communication, including:
  • the base station transmits resource allocation information for performing short TTI communication using a dedicated downlink control information (DCI) unit format in the PDCCH.
  • DCI downlink control information
  • the resource allocation information that is sent by using the dedicated DCI unit format further includes:
  • indication information indicating whether the resource allocation information is continued in a subsequent subframe; and/or time information in which the resource allocation information continues.
  • the resource allocation information that is sent by using the dedicated DCI unit format includes the indication information of the uplink resource of the short TTI communication and the indication information of the downlink resource of the short TTI communication.
  • the method further includes:
  • the base station performs short TTI communication according to the resource allocation information for performing short TTI communication.
  • a method for receiving resource allocation information for short transmission time interval communication comprising:
  • the user equipment receives resource allocation information for performing short TTI communication from the PDCCH;
  • the user equipment performs short TTI communication by using the resource allocation information for performing short TTI communication.
  • the receiving, by the user equipment, resource allocation information for performing short TTI communication from the PDCCH includes:
  • the user equipment acquires resource allocation information for performing short TTI communication from a dedicated DCI unit format in the PDCCH.
  • the user equipment acquires resource allocation information for short TTI communication from a dedicated DCI unit format in the PDCCH, including:
  • the user equipment acquires the indication information of the short TTI communication in the resource information for performing the short TTI communication and/or the indication information of the short TTI communication format, and obtains the indication information of the short TTI communication and/or the short TTI communication format. After the indication information, the operation of performing short TTI communication is triggered.
  • the user equipment performs short TTI communication by using the resource allocation information for performing short TTI communication, including:
  • the user equipment acquires configuration information corresponding to the short TTI communication format
  • the user equipment performs configuration of short TTI communication by using configuration information corresponding to the short TTI communication format
  • the parameter information included in the short TTI communication format is sent by a system broadcast message or a preset message; or the parameter information included in the short TTI communication format is agreed by a standard protocol.
  • An apparatus for transmitting resource allocation information for short transmission time interval communication comprising:
  • the first sending module is configured to notify, by using a physical downlink control channel (PDCCH), resource allocation information for performing short TTI communication.
  • PDCCH physical downlink control channel
  • the resource allocation information includes at least one of the following: the indication information of the short TTI communication, the indication information of the short TTI communication format, the indication information of the uplink resource of the short TTI communication, and the indication information of the downlink resource of the short TTI communication.
  • the indication information of each of the short TTI communication formats is a format number of a short TTI communication format.
  • the short TTI communication format is preset, and each format corresponds to a set of configuration information for performing short TTI communication.
  • the device further comprises:
  • the second sending module is configured to: send the parameter information included in the short TTI communication format to one or more user equipments that use the short TTI communication format.
  • the parameter information included in the short TTI communication format is sent by a system broadcast message or a preset message; or the parameter information included in the short TTI communication format is agreed by a standard protocol.
  • the configuration information for performing the short TTI communication includes at least one of the following:
  • the length of the short TTI The length of the short TTI, the length of the dedicated control channel within each short TTI, the type of dedicated control channel within each short TTI, the location of the resources occupied by each dedicated control channel, and the modulation coding used by each dedicated control channel information.
  • the dedicated control channel includes at least one of a short TTI dedicated physical downlink control channel (PDCCH), a short TTI dedicated physical hybrid automatic repeat indication channel (PHICH), and a short TTI dedicated physical uplink control channel (PUCCH).
  • PDCH short TTI dedicated physical downlink control channel
  • PHICH short TTI dedicated physical hybrid automatic repeat indication channel
  • PUCCH physical uplink control channel
  • the first sending module is configured to: transmit the indication information of the short TTI communication and/or the short TTI by using a reserved option of the Adjust Coding Method (MCS) field in the DCI information unit in the Physical Downlink Control Channel (PDCCH). Information about the communication format.
  • MCS Adjust Coding Method
  • the first sending module is configured to: send resource allocation information for performing short TTI communication by using a dedicated downlink control information (DCI) unit format in a physical downlink control channel (PDCCH).
  • DCI dedicated downlink control information
  • PDCH physical downlink control channel
  • the resource allocation information that is sent by using the dedicated DCI unit format further includes:
  • the resource allocation information sent by the DCI includes the indication information of the uplink resource of the short TTI communication and the indication information of the downlink resource of the short TTI communication.
  • the device further comprises:
  • the first communication module is configured to perform short TTI communication according to the resource allocation information for performing the short TTI communication.
  • An apparatus for receiving resource allocation information for short transmission time interval communication comprising:
  • the receiving module is configured to: receive resource allocation information for performing short TTI communication from the PDCCH;
  • the second communication module is configured to perform short TTI communication by using the resource allocation information for performing short TTI communication.
  • receiving module is set to:
  • the resource allocation information for performing short TTI communication is acquired from a dedicated DCI unit format in the PDCCH.
  • receiving module is set to:
  • the second communication module includes:
  • a determining unit configured to: determine a short TTI communication format according to the indication information of the short TTI communication format in the resource allocation information for performing the short TTI communication;
  • An obtaining unit configured to: obtain configuration information corresponding to the short TTI communication format
  • a configuration unit configured to: perform short TTI communication configuration by using configuration information corresponding to the short TTI communication format
  • the parameter information included in the short TTI communication format is sent by a system broadcast message or a preset message; or the parameter information included in the short TTI communication format is agreed by a standard protocol.
  • an embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions, where the computer executable instructions are implemented to implement the short TTI communication resource The method of assigning information.
  • an embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions, the method of implementing the resource allocation information for receiving short TTI communication when the computer executable instructions are executed.
  • the configuration information of the short TTI communication is notified by the PDCCH, and the purpose of transmitting the resource allocation information required for performing the short TTI communication is implemented, which provides a configuration basis for the subsequent short TTI communication.
  • FIG. 1 is a flowchart of a method for receiving resource allocation information of a short TTI according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a frame for performing short TTI communication in an LTE system according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of interaction of a format for indicating short TTI communication by using a new DCI format according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of interaction of a new DCI format indicating short TTI communication according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of interaction of using a reserved field of an MCS to indicate a format of short TTI communication according to an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of interaction of using a reserved field of an MCS to indicate a format of short TTI communication in a PUSCH according to an embodiment of the present invention
  • FIG. 7 is a schematic diagram of interaction of using a reserved field of an MCS to indicate a format of short TTI communication in a PDSCH according to an embodiment of the present disclosure
  • FIG. 8 is a structural diagram of an apparatus for transmitting resource allocation information of short transmission time interval communication according to an embodiment of the present invention.
  • FIG. 9 is a structural diagram of an apparatus for receiving resource allocation information of short transmission time interval communication according to an embodiment of the present invention.
  • the traditional LTE system utilizes frequency selective scheduling to make full use of the frequency selective channel of each user, so wireless resources using short TTI technology cannot use fixed frequency locations.
  • the wireless resources that use short TTI technology in the future must be dynamically allocated.
  • the short TTI technology reduces the allocation granularity of resources, the resource allocation overhead must increase, and the increase in overhead and the reduction in TTI can be considered to be proportional. That is to say, the shorter the TTI, the smaller the delay, but the additional signaling overhead caused by resource allocation and related control. Therefore, under the condition of meeting the business requirements, the shorter the length of the short TTI used, the better. As the short TTI service latency requirements change, the system may be required to use different short TTI lengths at different times.
  • the embodiment of the present invention proposes a solution for transmitting resource allocation information required for short TTI communication.
  • Program The description of the program is as follows:
  • An embodiment of the present invention provides a method for transmitting resource allocation information of short transmission time interval (TTI) communication, including:
  • the base station notifies the resource allocation information for performing short TTI communication using a Physical Downlink Control Channel (PDCCH).
  • PDCH Physical Downlink Control Channel
  • the method provided by the embodiment of the present invention provides the purpose of transmitting the resource allocation information required for short TTI communication by using the PDCCH to notify the configuration information of the short TTI communication, and provides a configuration basis for the subsequent short TTI communication.
  • the resource allocation information includes at least one of the following: the indication information of the short TTI communication, the indication information of the short TTI communication format, the indication information of the uplink resource of the short TTI communication, and the indication information of the downlink resource of the short TTI communication.
  • the indication information of the short TTI communication is used to indicate that the subsequent information is information for performing short TTI communication, so as to effectively distinguish other types of communication;
  • the indication information of the short TTI communication format may be a format number corresponding to the communication format; for example, when there are at least two short TTI communication formats, the corresponding format serial number may be configured for each short TTI communication format, and the broadcast format serial number and The parameter information in the communication format corresponding to the format serial number does not transmit the parameter information in the corresponding communication format during the subsequent transmission, and only needs to transmit the format number.
  • the short TTI communication format is preset, and each format corresponds to a set of configuration information for performing short TTI communication.
  • the base station transmits parameter information included in the short TTI communication format to one or more user equipments that use the short TTI communication format.
  • the parameter information included in the short TTI communication format is sent by a system broadcast message or a preset message; or
  • the parameter information included in the short TTI communication format is agreed by a standard protocol.
  • the parameter information included in the short TTI communication format is sent, so that the user equipment can learn the correspondence between the parameter information and the value in the short TTI communication format, which is simple and convenient.
  • the example given above illustrates that when the short TTI communication format used includes the parameter A, the parameter B, and the parameter C, it is notified that the communication format includes the parameter A, the parameter B, and the parameter C, that is, the parameter content and
  • the order of the parameters is arranged to facilitate the user equipment to determine the correspondence between the parameters and the values.
  • the parameter information included in the short TTI communication format is sent by a system broadcast message or a preset message.
  • the parameter information may be transmitted in a field that is not used in the system broadcast message or in a newly added field in the system broadcast message.
  • the configuration information for performing the short TTI communication includes at least one of the following:
  • the length of the short TTI The length of the short TTI, the length of the dedicated control channel within each short TTI, the type of dedicated control channel within each short TTI, the location of the resources occupied by each dedicated control channel, and the modulation coding used by each dedicated control channel information.
  • the dedicated control channel includes a Physical Downlink Control Channel (PDCCH) dedicated to a short TTI, a Physical Hybrid ARQ Indicator Channel (PHICH) dedicated to a short TTI, and a short TTI. At least one of a Physical Uplink Control Channel (PUCCH).
  • PDCCH Physical Downlink Control Channel
  • PHICH Physical Hybrid ARQ Indicator Channel
  • the base station uses the PDCCH to notify the resource allocation information of the short TTI communication, including:
  • the base station transmits the indication information of the short TTI communication and/or the short TTI communication by using a reservation option of a Modulation and Coding Scheme (MCS) field in a Downlink Control Information (DCI) information element in the PDCCH. Formatted information.
  • MCS Modulation and Coding Scheme
  • DCI Downlink Control Information
  • the base station uses the PDCCH to notify resource allocation information for performing short TTI communication, including:
  • the base station transmits resource allocation information for performing short TTI communication by using a dedicated DCI unit format in the PDCCH.
  • the resource allocation information that is sent by using the dedicated DCI unit format further includes:
  • indication information indicating whether the resource allocation information is continued in a subsequent subframe; and/or time information in which the resource allocation information continues.
  • the time information can be represented by a length of time or a number of subframes.
  • the resource allocation information that is sent by using the dedicated DCI unit format includes the indication information of the uplink resource of the short TTI communication and the indication information of the downlink resource of the short TTI communication.
  • the method further includes:
  • the base station performs short TTI communication according to the resource allocation information for performing short TTI communication.
  • FIG. 1 is a flowchart of a method for receiving resource allocation information of short transmission time interval communication according to an embodiment of the present invention. The method shown in Figure 1 includes the following steps:
  • Step 101 The user equipment receives resource allocation information for performing short TTI communication from the PDCCH.
  • Step 102 The user equipment performs short TTI communication by using the resource allocation information for performing short TTI communication.
  • the method provided by the embodiment of the present invention receives the configuration information for performing short TTI communication through the PDCCH, and implements the purpose of transmitting resource allocation information required for performing short TTI communication, and provides a configuration basis for subsequent short TTI communication.
  • the receiving, by the user equipment, resource allocation information for performing short TTI communication from the PDCCH includes:
  • the user equipment acquires resource allocation information for performing short TTI communication from a dedicated DCI unit format in the PDCCH.
  • the user equipment acquires resource allocation information for short TTI communication from a dedicated DCI unit format in the PDCCH, including:
  • the user equipment acquires the indication information of the short TTI communication in the resource information for performing the short TTI communication and/or the indication information of the short TTI communication format, and obtains the indication information of the short TTI communication and/or the short TTI communication format. After the indication information, the operation of performing short TTI communication is triggered.
  • the user equipment performs short TTI communication by using the resource allocation information for performing short TTI communication, including:
  • the user equipment acquires configuration information corresponding to the short TTI communication format
  • the user equipment performs configuration of short TTI communication by using configuration information corresponding to the short TTI communication format
  • the parameter information included in the short TTI communication format is sent by a system broadcast message or a preset message; or the parameter information included in the short TTI communication format is agreed by a standard protocol.
  • the resources that perform short TTI communication in the uplink direction or the short TTI communication resources in the downlink direction are dedicated downlink control information (DCI) in the PDCCH (Physical Downlink Control Channel).
  • DCI Downlink Control Information
  • the unit format is dynamically indicated.
  • a station (such as a base station or a network side device) can flexibly adjust the size and location of resource blocks for short TTI communication in each subframe according to factors such as service requirements, channel conditions, and frequency selectivity of channels on which other user equipments (UEs) are located. .
  • the user equipment performs short TTI communication at the designated resource block and the base station according to information in the DCI unit format dedicated by the base station in the PDCCH.
  • the station In order to further reduce the signaling overhead of short TTI communication, the station first needs to select a suitable short TTI format according to the service requirements of all or part of a single low-latency user of the cell, and then notify these users of the format and radio resources used for short TTI communication. . Finally, among the indicated resources, the station and the user equipment perform short TTI communication in accordance with the format of the indicated short TTI communication.
  • the UE User Equipment obtains, from the DCI (Downlink Control Information), specific parameters for performing short TTI access, where the parameters include the length of the short TTI, and the length of each short TTI. Control channel length and configuration, etc.
  • the embodiment of the present invention proposes to define some standard short TTI communication formats, each format corresponding to a fixed short TTI access parameter. In this way, the user terminal can determine various parameters for performing short TTI communication according to the format information (such as the format number) of the simple short TTI communication indicated.
  • the short TTI format in the DCI may be replaced by a single bit of short TTI indication information.
  • each control channel and corresponding data channel within the short TTI may be included in the short TTI format.
  • the short TTI format may only include each control channel within the short TTI, and the data channel specifically for short TTI communication may be further indicated by information in each control channel within the short TTI.
  • FIG. 3 is a diagram of indicating a short TTI communication by using a new DCI format according to an embodiment of the present invention. Schematic diagram of interaction. As shown in FIG. 3, the communication process for indicating the short TTI format using the newly defined DCI format provided in the embodiment of the present invention is implemented as follows:
  • Step 1 The base station indicates the resources for performing short TTI communication by using the aforementioned new DCI format.
  • Step 2 After receiving the resource allocation indication of the new DCI format, the user terminal performs short TTI communication according to the obtained short TTI format information.
  • the base station can indicate the format and resources of the short TTI communication by using the newly defined DCI format.
  • the short TTI indication information and/or the short TTI format indication information may be included in the DCI format; of course, the new DCI format may also include uplink resources and/or downlink resources of the short TTI communication.
  • the new DCI format can also contain the defined short TTI format and the duration of the resource.
  • FIG. 4 is a schematic diagram of a new DCI format indicating short TTI communication according to an embodiment of the present invention.
  • the format includes three areas: a short TTI format sequence number, an uplink resource allocation, and a downlink resource allocation.
  • the format number of the short TTI communication only occupies 2 bits, and 4 different short TTI formats can be indicated.
  • the number of physical resource blocks (PRBs) corresponding to the downlink system bandwidth For the number of PRBs corresponding to the uplink system bandwidth, P is the number of PRBs in each allocated resource block group (where the allocation is first divided into fixed-size groups and then allocated in groups). Indicates rounding up.
  • PRBs physical resource blocks
  • the new DCI format may also include the defined short TTI format and the duration of the resource. For example, when the duration is 10ms, only one DCI indication is needed for every 10 traditional TTIs, so as to minimize the signaling overhead.
  • FIG. 5 is a schematic diagram of interaction of using a reserved field of an MCS to indicate a format of short TTI communication according to an embodiment of the present invention.
  • the communication process using the reserved field of the MCS in the embodiment of the present invention to indicate the short TTI format is implemented as follows:
  • Step 1 The base station indicates, in the PDCCH, a resource for performing short TTI communication, and the base station uses a reserved field of the MCS region included in the indication to indicate a format for performing short TTI communication, and the resource allocation indication may be completely related to an existing resource allocation indication. the same;
  • Step 2 After receiving the resource allocation indication, the user terminal obtains short TTI format information from the MCS area included in the indication, and then performs short TTI communication according to the short TTI format.
  • FIG. 6 is a reserved field indication using an MCS in a PUSCH according to an embodiment of the present invention. Schematic diagram of the interaction of the format of short TTI communication. As shown in FIG. 6, the previously reserved (Reserved) MCS indexes (Index) 29 to 31 are used to indicate that short TTI formats 1 to 3 (Short TTI Format 1 to 3) are used in the uplink resource.
  • Index MCS indexes
  • FIG. 7 is an embodiment of using a reserved field of an MCS to indicate a short TTI format in a PDSCH according to an embodiment of the present invention.
  • the previously reserved (Reserved) MCS indexes (Index) 29 to 31 are used to indicate that short TTI formats 1 to 3 (Short TTI Formats 1 to 3) are used in the downlink resources.
  • An embodiment of the present invention provides an apparatus for transmitting resource allocation information of short transmission time interval communication. As shown in FIG. 8, the apparatus includes:
  • the first sending module 701 is configured to notify the resource allocation information for performing short TTI communication by using a physical downlink control channel (PDCCH).
  • PDCH physical downlink control channel
  • the resource allocation information includes at least one of the following: the indication information of the short TTI communication, the indication information of the short TTI communication format, the indication information of the uplink resource of the short TTI communication, and the indication information of the downlink resource of the short TTI communication.
  • the indication information of each of the short TTI communication formats is a format number of a short TTI communication format.
  • the short TTI communication format is preset, and each format corresponds to a set of configuration information for performing short TTI communication.
  • the device further comprises:
  • the second sending module 702 is configured to: send the parameter information included in the short TTI communication format to one or more user equipments that use the short TTI communication format.
  • the parameter information included in the short TTI communication format is sent by a system broadcast message or a preset message; or
  • the parameter information included in the short TTI communication format is agreed by a standard protocol.
  • the configuration information for performing the short TTI communication includes at least one of the following:
  • Length of short TTI Length of short TTI, length of dedicated control channel within each short TTI, internal for each short TTI The type of dedicated control channel, the location of the resources occupied by each dedicated control channel, and the modulation and coding information used by each dedicated control channel.
  • the dedicated control channel includes at least one of a short TTI dedicated physical downlink control channel (PDCCH), a short TTI dedicated physical hybrid automatic repeat indication channel (PHICH), and a short TTI dedicated physical uplink control channel (PUCCH).
  • PDCH short TTI dedicated physical downlink control channel
  • PHICH short TTI dedicated physical hybrid automatic repeat indication channel
  • PUCCH physical uplink control channel
  • the first sending module 701 is configured to: transmit indication information of short TTI communication and/or short TTI communication by using a reservation option of an adjustment coding method (MCS) field in a DCI information unit in a physical downlink control channel (PDCCH) Formatted information.
  • MCS adjustment coding method
  • the first sending module 701 is configured to: send resource allocation information for performing short TTI communication by using a dedicated DCI unit format in a physical downlink control channel (PDCCH).
  • PDCH physical downlink control channel
  • the resource allocation information that is sent by using the dedicated DCI unit format further includes:
  • indication information indicating whether the resource allocation information is continued in a subsequent subframe; and/or time information in which the resource allocation information continues.
  • the resource allocation information sent by the dedicated DCI unit format DCI includes the indication information of the uplink resource of the short TTI communication and the indication information of the downlink resource of the short TTI communication.
  • the device further comprises:
  • the first communication module 703 is configured to perform short TTI communication according to the resource allocation information for performing short TTI communication.
  • the device provided by the embodiment of the present invention notifies the configuration information of the short TTI communication by using the PDCCH, and implements the purpose of transmitting the resource allocation information required for the short TTI communication, and provides a configuration basis for the subsequent short TTI communication.
  • FIG. 9 is a structural diagram of an apparatus for receiving resource allocation information of short transmission time interval communication according to an embodiment of the present invention.
  • the device shown in Figure 9 includes:
  • the receiving module 801 is configured to: receive resource allocation information for performing short TTI communication from the PDCCH;
  • the second communication module 802 is configured to perform short TTI communication by using the resource allocation information for performing short TTI communication.
  • the receiving module 801 is configured to:
  • the resource allocation information for performing short TTI communication is acquired from a dedicated DCI unit format in the PDCCH.
  • the receiving module 801 is configured to:
  • the second communication module 802 includes:
  • a determining unit configured to: determine a short TTI communication format according to the indication information of the short TTI communication format in the resource allocation information for performing the short TTI communication;
  • An obtaining unit configured to: obtain configuration information corresponding to the short TTI communication format
  • a configuration unit configured to: perform short TTI communication configuration by using configuration information corresponding to the short TTI communication format
  • the parameter information included in the short TTI communication format is sent by a system broadcast message or a preset message; or the parameter information included in the short TTI communication format is agreed by a standard protocol.
  • the device provided by the embodiment of the present invention acquires configuration information for performing short TTI communication through the PDCCH, and implements the purpose of transmitting resource allocation information required for short TTI communication, and provides a configuration basis for performing short TTI communication.
  • an embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions, the method of implementing the resource allocation information for transmitting short TTI communication when the computer executable instructions are executed.
  • an embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions, the method of implementing the resource allocation information for receiving short TTI communication when the computer executable instructions are executed.
  • all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve. Thus, the application is not limited to any particular combination of hardware and software.
  • the devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • each device/function module/functional unit in the above embodiment When each device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the embodiments of the present invention provide a method and a device for transmitting and receiving resource allocation information of short TTI communication, and the PDCCH is used to notify the configuration information of short TTI communication, so as to implement the purpose of transmitting resource allocation information required for short TTI communication,
  • the short TTI communication provides a configuration basis.

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

Abstract

L'invention concerne un procédé permettant d'envoyer des informations d'allocation de ressources pour une communication à intervalle de temps de transmission court (TTI). Selon le procédé, une station de base utilise un canal de commande physique de liaison descendante (PDCCH) pour faire circuler des informations d'allocation de ressources permettant d'effectuer une communication à TTI court, lesdites informations d'allocation de ressources comprenant au moins un des éléments suivants : des informations d'indication de communication à TTI court, des informations d'indication de mode de communication à TTI court, des informations d'indication de ressources de téléchargement en liaison montante de communication à TTI court, et des informations de téléchargement en liaison descendante de communication à TTI court. L'invention concerne également un procédé permettant de recevoir des informations d'allocation de ressources pour une communication à TTI court, le procédé comprenant les étapes suivantes : un équipement utilisateur reçoit dans le canal PDCCH les informations d'allocation de ressources pour effectuer une communication à TTI court ; l'équipement utilisateur utilise les informations d'allocation de ressources permettant d'effectuer une communication à TTI court pour effectuer une communication à TTI court.
PCT/CN2016/077539 2015-09-22 2016-03-28 Procédés et dispositifs permettant d'envoyer et de recevoir des informations d'allocation de ressources pour une communication à intervalle de temps de transmission court WO2016177177A1 (fr)

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CN201510609498.6A CN106550465B (zh) 2015-09-22 2015-09-22 发送、接收短传输时间间隔通信的资源分配信息的方法和装置

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