WO2016177177A1 - Methods and devices for sending, receiving resource allocation information for short transmission time interval communication - Google Patents
Methods and devices for sending, receiving resource allocation information for short transmission time interval communication Download PDFInfo
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- 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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- short tti
- tti communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- 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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- Mobile Radio Communication Systems (AREA)
Abstract
A method for sending resource allocation information for short transmission time interval (TTI) communication, comprising: a base station using a physical downlink control channel (PDCCH) to circulate resource allocation information for conducting short TTI communication, said resource allocation information comprising at least one of the following: short TTI communication indication information, short TTI communication mode indication information, short TTI communication upload resource indication information, and short TTI communication download resource indication information. A method for receiving resource allocation information for short TTI communication, comprising: a user equipment receiving from within the PDCCH the resource allocation information for conducting short TTI communication; the user equipment using the resource allocation information for conducting short TTI communication to conduct said communication.
Description
本申请涉及但不限于移动通信领域,尤其涉及一种发送、接收短传输时间间隔通信的资源分配信息的方法和装置。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.
移动互联网、物联网、以及其他业务应用的迅猛发展已经成为推动第五代移动通信技术(5G,5th Generation)发展的主要驱动力。他们迫切要求5G具有媲美光纤的接入速率、千亿设备的连接能力、完美的实时体验、以及随时随地的无线宽带接入能力。此外,能耗效率、频谱效率和峰值速率等重要指标也需要在5G系统设计时综合考虑。中国在2013年成立了IMT-2020推进组来推动5G技术的发展。根据国际整体情况,预计2015年将形成5G愿景、关键能力需求及频谱规划,之后将启动5G标准化工作,并在2020年后开始商用。国际标准方面,LTE(Long Term Evolution)的演进LTE-Advanced的技术标准主要在3GPP国际标准化组织制订。业界初步认为在3GPP R14阶段将启动面向5G的标准研究工作。The rapid development of mobile Internet, Internet of Things, and other business applications has become the main driving force for the development of the fifth generation of mobile communication technology (5G, 5th Generation). They are eager to demand 5G's access rate comparable to fiber optics, connectivity to billions of devices, a perfect real-time experience, and wireless broadband access anywhere, anytime. In addition, important indicators such as energy efficiency, spectrum efficiency and peak rate also need to be considered in the design of 5G systems. China established the IMT-2020 Promotion Group in 2013 to promote the development of 5G technology. According to the overall situation of the international community, it is expected that a 5G vision, key capability requirements and spectrum planning will be formed in 2015, after which 5G standardization work will be started and commercialization will begin after 2020. In terms of international standards, the LTE (Long Term Evolution) evolution of LTE-Advanced technology standards is mainly developed by the 3GPP International Organization for Standardization. The industry initially believes that standard research work for 5G will be initiated in the 3GPP R14 phase.
在未来的移动网络中,业务量需求会不断提高、终端数目和种类也不断爆发式增长。作为5G的重要场景和技术手段之一,机器间通信(MTC,Machine Type Communication)正受到越来越多的关注。总的来说,机器间通信有四大主流需求:巨量连接、低能耗、低时延和高可靠。在连接数量上,未来的5G系统需要支持的用户容量可达每个小区30~300万个用户设备,能够覆盖99.99%的区域;在能耗方面,5G系统需要使用户设备的电池使用时间比现在延长10倍,达5~10年;在延迟方面,5G系统需要使端到端延迟降低5倍,最小可达5ms,其中,空口延迟最小达1ms;在可靠性方面,安全相关消息的可靠性要求高达99.999%。实际应用中,根据具体情况,不同的应用又可能有着不同的需求组合形式,既可以是以上四种之一,又可以是它们的不同组合,甚至可以包括全部四种需求。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. It is now 10 times longer for 5 to 10 years; in terms of latency, 5G systems need to reduce end-to-end delay by 5 times, to a minimum of 5ms, of which air interface delay is as low as 1ms; in terms of reliability, security-related messages are reliable. Sexual requirements are as high as 99.999%. In practical applications, depending on the specific situation, different applications may have different combinations of requirements, which may be one of the above four, or different combinations thereof, and may even include all four requirements.
短传输时间间隔接入技术是通过减少LTE系统的传输时间间隔(TTI,
Transmission Time Interval),充分缩短处理时延和回程时延,以支持某些业务的超低时延需求。目前存在两种缩小TTI的方法,一种是通过扩大正交频分复用(OFDM,Orthogonal Frequency Division Multiplexing)系统的子载波间隔来缩小单个OFDM符号的时长;该方法在5G的高频通信系统和超密集网络中均有讨论。另一种方法是目前3GPP所讨论的通过减少单个TTI中OFDM符号的数量来减小TTI长度;该方法的好处是可以和现有的LTE系统完全兼容,可以直接在传统LTE系统中进行短TTI的通信。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. Currently, there are two methods for reducing TTI, one is to reduce the duration of a single OFDM symbol by expanding the subcarrier spacing of an Orthogonal Frequency Division Multiplexing (OFDM) system; the method is in a 5G high frequency communication system. Discussed in both ultra-dense networks. 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.
在进行短TTI的通信时,进行短TTI的通信所需的配置信息是进行短TTI通信的必要内容,那么如何传输进行短TTI通信所需的配置信息是亟待解决的问题。When short TTI communication is performed, 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.
发明内容Summary of the invention
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.
本发明实施例提供一种发送、接收短传输时间间隔(TTI)通信的资源分配信息的方法和装置,能够实现传输进行短TTI通信所需的配置信息。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.
本发明实施例提供了如下技术方案:The embodiments of the present invention provide the following technical solutions:
一种发送短传输时间间隔通信的资源分配信息的方法,所述方法包括:A method for transmitting resource allocation information for short transmission time interval communication, the method comprising:
基站利用物理下行控制信道(PDCCH)通知进行短TTI通信的资源分配信息。The base station notifies the resource allocation information for performing short TTI communication using a Physical Downlink Control Channel (PDCCH).
其中,所述资源分配信息包括如下信息中的至少一个:短TTI通信的指示信息、短TTI通信格式的指示信息、短TTI通信的上行资源的指示信息、短TTI通信的下行资源的指示信息。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.
其中,每个所述短TTI通信格式的指示信息为短TTI通信格式的格式编号。The indication information of each of the short TTI communication formats is a format number of a short TTI communication format.
其中,所述短TTI通信格式是预先设置的,每个格式对应一组进行短TTI通信的配置信息。The short TTI communication format is preset, and each format corresponds to a set of configuration information for performing short TTI communication.
其中,所述方法还包括:
The method further includes:
所述基站向使用所述短TTI通信格式的一个或多个用户设备发送所述短TTI通信格式中包括的参数信息。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.
其中,所述短TTI通信格式中包括的参数信息是通过系统广播消息或预先设定的消息发送的;或者,所述短TTI通信格式中包括的参数信息是由标准协议进行约定的。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.
其中,所述进行短TTI通信的配置信息包括如下至少一个:The configuration information for performing the short TTI communication includes at least one of the following:
短TTI的长度、每个短TTI内的专用控制信道的长度、每个短TTI内部的专用控制信道的类型、每个专用控制信道所占资源的位置、每个专用控制信道所使用的调制编码信息。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.
其中,所述专用控制信道包括短TTI专用的物理下行控制信道(PDCCH)、短TTI专用的物理混合自动重传指示信道(PHICH)和短TTI专用的物理上行控制信道(PUCCH)中的至少一个。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). .
其中,所述基站利用PDCCH通知进行短TTI通信的资源分配信息,包括:The base station uses the PDCCH to notify the resource allocation information of the short TTI communication, including:
所述基站利用PDCCH中的下行控制信息(DCI)信息单元中的调整编码方法(MCS)字段的保留选项来传输短TTI通信的指示信息和/或短TTI通信格式的指示信息。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.
其中,所述基站利用PDCCH通知进行短TTI通信的资源分配信息,包括:The base station uses the PDCCH to notify the resource allocation information of the short TTI communication, including:
所述基站利用PDCCH中专用的下行控制信息(DCI)单元格式发送进行短TTI通信的资源分配信息。The base station transmits resource allocation information for performing short TTI communication using a dedicated downlink control information (DCI) unit format in the PDCCH.
其中,通过所述专用的DCI单元格式发送的所述资源分配信息还包括:The resource allocation information that is sent by using the dedicated DCI unit format further includes:
指示所述资源分配信息是否在后续子帧中持续进行的指示信息;和/或,所述资源分配信息所持续的时间信息。And 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.
其中,通过所述专用的DCI单元格式发送的所述资源分配信息同时包括短TTI通信的上行资源的指示信息和短TTI通信的下行资源的指示信息。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.
其中,所述方法还包括:
The method further includes:
所述基站根据所述进行短TTI通信的资源分配信息,进行短TTI通信。The base station performs short TTI communication according to the resource allocation information for performing short TTI communication.
一种接收短传输时间间隔通信的资源分配信息的方法,所述方法包括:A method for receiving resource allocation information for short transmission time interval communication, the method comprising:
用户设备从PDCCH中接收进行短TTI通信的资源分配信息;The user equipment receives resource allocation information for performing short TTI communication from the PDCCH;
所述用户设备利用所述进行短TTI通信的资源分配信息,进行短TTI通信。The user equipment performs short TTI communication by using the resource allocation information for performing short TTI communication.
其中,所述用户设备从PDCCH中接收进行短TTI通信的资源分配信息,包括:The receiving, by the user equipment, resource allocation information for performing short TTI communication from the PDCCH, includes:
所述用户设备从PDCCH中专用的DCI单元格式获取进行短TTI通信的资源分配信息。The user equipment acquires resource allocation information for performing short TTI communication from a dedicated DCI unit format in the PDCCH.
其中,所述用户设备从PDCCH中专用的DCI单元格式获取进行短TTI通信的资源分配信息,包括:The user equipment acquires resource allocation information for short TTI communication from a dedicated DCI unit format in the PDCCH, including:
所述用户设备获取所述进行短TTI通信的资源信息中的短TTI通信的指示信息和/或短TTI通信格式的指示信息,在得到所述短TTI通信的指示信息和/或短TTI通信格式的指示信息后,触发进行短TTI通信的操作。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.
其中,所述用户设备利用所述进行短TTI通信的资源分配信息,进行短TTI通信,包括:The user equipment performs short TTI communication by using the resource allocation information for performing short TTI communication, including:
所述用户设备根据所述进行短TTI通信的资源分配信息中的短TTI通信格式的指示信息,确定短TTI通信格式;Determining, by the user equipment, the 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;
所述用户设备获取所述短TTI通信格式对应的配置信息;The user equipment acquires configuration information corresponding to the short TTI communication format;
所述用户设备利用所述短TTI通信格式对应的配置信息,进行短TTI通信的配置;The user equipment performs configuration of short TTI communication by using configuration information corresponding to the short TTI communication format;
其中,所述短TTI通信格式中包括的参数信息是通过系统广播消息或预先设定的消息发送的;或者,所述短TTI通信格式中包括的参数信息是由标准协议进行约定的。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.
一种发送短传输时间间隔通信的资源分配信息的装置,所述装置包括:An apparatus for transmitting resource allocation information for short transmission time interval communication, the apparatus comprising:
第一发送模块,设置为:利用物理下行控制信道(PDCCH)通知进行短TTI通信的资源分配信息。
The first sending module is configured to notify, by using a physical downlink control channel (PDCCH), resource allocation information for performing short TTI communication.
其中,所述资源分配信息包括如下信息中的至少一个:短TTI通信的指示信息、短TTI通信格式的指示信息、短TTI通信的上行资源的指示信息、短TTI通信的下行资源的指示信息。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.
其中,每个所述短TTI通信格式的指示信息为短TTI通信格式的格式编号。The indication information of each of the short TTI communication formats is a format number of a short TTI communication format.
其中,所述短TTI通信格式是预先设置的,每个格式对应一组进行短TTI通信的配置信息。The short TTI communication format is preset, and each format corresponds to a set of configuration information for performing short TTI communication.
其中,所述装置还包括:Wherein, the device further comprises:
第二发送模块,设置为:向使用所述短TTI通信格式的一个或多个用户设备发送所述短TTI通信格式中包括的参数信息。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.
其中,所述短TTI通信格式中包括的参数信息是通过系统广播消息或预先设定的消息发送的;或者,所述短TTI通信格式中包括的参数信息是由标准协议进行约定的。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.
其中,所述进行短TTI通信的配置信息包括如下至少一个:The configuration information for performing the short TTI communication includes at least one of the following:
短TTI的长度、每个短TTI内的专用控制信道的长度、每个短TTI内部的专用控制信道的类型、每个专用控制信道所占资源的位置、每个专用控制信道所使用的调制编码信息。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.
其中,所述专用控制信道包括短TTI专用的物理下行控制信道(PDCCH)、短TTI专用的物理混合自动重传指示信道(PHICH)和短TTI专用的物理上行控制信道(PUCCH)中的至少一个。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). .
其中,所述第一发送模块是设置为:利用物理下行控制信道(PDCCH)中的DCI信息单元中的调整编码方法(MCS)字段的保留选项来传输短TTI通信的指示信息和/或短TTI通信格式的指示信息。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.
其中,所述第一发送模块是设置为:利用物理下行控制信道(PDCCH)中专用的下行控制信息(DCI)单元格式发送进行短TTI通信的资源分配信息。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).
其中,通过所述专用的DCI单元格式发送的所述资源分配信息还包括:The resource allocation information that is sent by using the dedicated DCI unit format further includes:
指示所述资源分配信息是否在后续子帧中持续进行的指示信息;和/或,
所述资源分配信息所持续的时间信息。Instructing information indicating whether the resource allocation information continues in a subsequent subframe; and/or,
The time information that the resource allocation information lasts.
其中,通过DCI发送的所述资源分配信息同时包括短TTI通信的上行资源的指示信息和短TTI通信的下行资源的指示信息。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.
其中,所述装置还包括:Wherein, the device further comprises:
第一通信模块,设置为:根据所述进行短TTI通信的资源分配信息,进行短TTI通信。The first communication module is configured to perform short TTI communication according to the resource allocation information for performing the short TTI communication.
一种接收短传输时间间隔通信的资源分配信息的装置,所述装置包括:An apparatus for receiving resource allocation information for short transmission time interval communication, the apparatus comprising:
接收模块,设置为:从PDCCH中接收进行短TTI通信的资源分配信息;The receiving module is configured to: receive resource allocation information for performing short TTI communication from the PDCCH;
第二通信模块,设置为:利用所述进行短TTI通信的资源分配信息,进行短TTI通信。The second communication module is configured to perform short TTI communication by using the resource allocation information for performing short TTI communication.
其中,所述接收模块是设置为:Wherein the receiving module is set to:
从PDCCH中专用的DCI单元格式获取进行短TTI通信的资源分配信息。The resource allocation information for performing short TTI communication is acquired from a dedicated DCI unit format in the PDCCH.
其中,所述接收模块是设置为:Wherein the receiving module is set to:
获取所述进行短TTI通信的资源信息中的所述短TTI通信的指示信息和/或短TTI通信格式的指示信息,在得到所述短TTI通信的指示信息和/或短TTI通信格式的指示信息后,触发进行短TTI通信的操作。Acquiring the indication information of the short TTI communication and/or the indication information of the short TTI communication format in the resource information for performing the short TTI communication, and obtaining the indication information of the short TTI communication and/or the indication of the short TTI communication format After the information, the operation of performing short TTI communication is triggered.
其中,所述第二通信模块包括:The second communication module includes:
确定单元,设置为:根据所述进行短TTI通信的资源分配信息中的短TTI通信格式的指示信息,确定短TTI通信格式;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;
获取单元,设置为:获取所述短TTI通信格式对应的配置信息;An obtaining unit, configured to: obtain configuration information corresponding to the short TTI communication format;
配置单元,设置为:利用所述短TTI通信格式对应的配置信息,进行短TTI通信的配置;a configuration unit, configured to: perform short TTI communication configuration by using configuration information corresponding to the short TTI communication format;
其中,所述短TTI通信格式中包括的参数信息是通过系统广播消息或预先设定的消息发送的;或者,所述短TTI通信格式中包括的参数信息是由标准协议进行约定的。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.
此外,本发明实施例还提供一种计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令被执行时实现所述发送短TTI通信的资源
分配信息的方法。In addition, 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.
此外,本发明实施例还提供一种计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令被执行时实现所述接收短TTI通信的资源分配信息的方法。In addition, 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.
在本发明实施例中,通过PDCCH通知进行短TTI通信的配置信息,实现传输进行短TTI通信所需的资源分配信息的目的,为后续进行短TTI通信提供了配置依据。In the embodiment of the present invention, 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.
在阅读并理解了附图和详细描述后,可以明白其他方面。Other aspects will be apparent upon reading and understanding the drawings and detailed description.
附图概述BRIEF abstract
图1为本发明实施例提供的接收短TTI的资源分配信息的方法的流程图;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;
图2为本发明实施例提供的LTE系统中进行短TTI通信的帧结构示意图;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;
图3为本发明实施例提供的一种利用新的DCI格式指示短TTI的通信的格式的交互示意图;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;
图4为本发明实施例提供的一种新的指示短TTI通信的DCI格式的交互示意图;4 is a schematic diagram of interaction of a new DCI format indicating short TTI communication according to an embodiment of the present invention;
图5为本发明实施例提供的一种利用MCS的保留字段指示短TTI通信的格式的交互示意图;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;
图6为本发明实施例提供的一种在PUSCH中利用MCS的保留字段指示短TTI通信的格式的交互示意图;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;
图7为本发明实施例提供的一种在PDSCH中利用MCS的保留字段指示短TTI通信的格式的交互示意图;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;
图8为本发明实施例提供的发送短传输时间间隔通信的资源分配信息的装置的结构图;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;
图9为本发明实施例提供的接收短传输时间间隔通信的资源分配信息的装置的结构图。
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.
下面将结合附图及具体实施例对本申请作进一步的详细描述。需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互任意组合。The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.
当前3GPP对短TTI接入的讨论还停留在最初的技术评估阶段,即分析评估短TTI对时延减少的最终效果。如何在相关的LTE系统中引入短TTI技术是一个值得研究的课题。首先,为了充分利用短TTI技术来减小接入延时,应用短TTI技术的无线资源必须是时间连续的,即每个LTE子帧内都有应用短TTI技术的无线子信道。只有这样,才能有效减小数据包到达后的等待时间。其次,LTE系统必须支持多种业务,包括传统的话音业务、数据业务和未来的低时延业务等。虽然可以给低时延业务在频域分配一个固定的带宽,但由于低时延业务的业务数据量是随时间变化的,且变化的信道条件也会对业务所需无线资源产生很大的影响,所以固定带宽的分配方法会带来资源浪费。最后,传统的LTE系统利用频率选择性调度来充分利用每个用户的频率选择性信道,所以应用短TTI技术的无线资源也不能使用固定的频率位置。综上所述,未来应用短TTI技术的无线资源必须是动态分配的。The current 3GPP discussion of short TTI access remains at the initial technical evaluation stage, which analyzes and evaluates the final effect of short TTI on latency reduction. How to introduce short TTI technology in related LTE systems is a topic worth studying. First, in order to fully utilize the short TTI technology to reduce the access delay, the radio resources applying the short TTI technology must be time-continuous, that is, each LTE subframe has a wireless subchannel applying short TTI technology. Only in this way can we effectively reduce the waiting time after the packet arrives. Second, the LTE system must support multiple services, including traditional voice services, data services, and future low-latency services. Although it is possible to allocate a fixed bandwidth to the low-latency service in the frequency domain, the amount of service data of the low-latency service changes with time, and the changed channel conditions also have a great influence on the radio resources required by the service. Therefore, the fixed bandwidth allocation method will bring waste of resources. Finally, 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. In summary, the wireless resources that use short TTI technology in the future must be dynamically allocated.
此外,由于短TTI技术减小了资源的分配粒度,资源分配开销必然增加,且开销的增加和TTI的缩小可以认为是成比例的。也就是说,TTI越短,时延越小,但资源分配以及相关的控制造成的额外信令开销越大。所以,在满足业务需求的条件下,采用的短TTI的长度越大越好。随着短TTI业务时延需求的变化,可能会要求系统在不同时间采用不同的短TTI长度。In addition, since 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.
在进行短TTI的通信时,进行短TTI的通信所需的配置信息是进行短TTI通信的必要内容,因此,本发明实施例提出了一种传输进行短TTI通信所需的资源分配信息的解决方案。该方案的说明如下:When performing short TTI communication, the configuration information required for short TTI communication is necessary for short TTI communication. Therefore, 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:
本发明实施例提供一种发送短传输时间间隔(TTI)通信的资源分配信息的方法,包括:An embodiment of the present invention provides a method for transmitting resource allocation information of short transmission time interval (TTI) communication, including:
基站利用物理下行控制信道(PDCCH)通知进行短TTI通信的资源分配信息。
The base station notifies the resource allocation information for performing short TTI communication using a Physical Downlink Control Channel (PDCCH).
本发明实施例提供的方法,通过PDCCH通知进行短TTI通信的配置信息,实现传输进行短TTI通信所需的资源分配信息的目的,为后续进行短TTI通信提供了配置依据。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.
其中,所述资源分配信息包括如下信息中的至少一个:短TTI通信的指示信息、短TTI通信格式的指示信息、短TTI通信的上行资源的指示信息、短TTI通信的下行资源的指示信息。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.
其中,短TTI通信的指示信息用于指示后续的信息是针对进行短TTI通信的信息,以有效区分其他类别的通信;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;
其中,短TTI通信格式的指示信息可以为通信格式对应的格式编号;例如,当短TTI通信格式有至少两个时,可以为每个短TTI通信格式配置对应的格式序号,并广播格式序号以及该格式序号对应的通信格式中的参数信息,在后续传输时,不再传输对应的通信格式中的参数信息,只需传输格式编号即可。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.
其中,所述短TTI通信格式是预先设置的,每个格式对应一组进行短TTI通信的配置信息。The short TTI communication format is preset, and each format corresponds to a set of configuration information for performing short TTI communication.
所述基站向使用所述短TTI通信格式的一个或多个用户设备发送所述短TTI通信格式中包括的参数信息。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.
其中,among them,
所述短TTI通信格式中包括的参数信息是通过系统广播消息或预先设定的消息发送的;或者,The parameter information included in the short TTI communication format is sent by a system broadcast message or a preset message; or
所述短TTI通信格式中包括的参数信息是由标准协议进行约定的。The parameter information included in the short TTI communication format is agreed by a standard protocol.
其中,在使用短TTI通信格式进行配置信息发送时,发送该短TTI通信格式包括的参数信息,方便用户设备获知参数信息与短TTI通信格式中数值的对应关系,实现简单方便。When the configuration information is sent by using the short TTI communication format, 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.
以上文所举的例子进行说明,当使用的短TTI通信格式中包括参数A、参数B和参数C时,需通知该通信格式中包括依次为参数A、参数B和参数C,即参数内容和参数的排列顺序,以方便用户设备确定参数和数值的对应关系。
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.
其中,所述短TTI通信格式中包括的参数信息是通过系统广播消息或预先设定的消息发送的。The parameter information included in the short TTI communication format is sent by a system broadcast message or a preset message.
其中,可以使用系统广播消息中未使用的字段或在系统广播消息中新增加的字段中传输参数信息。Wherein, 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.
其中,所述进行短TTI通信的配置信息包括如下至少一个:The configuration information for performing the short TTI communication includes at least one of the following:
短TTI的长度、每个短TTI内的专用控制信道的长度、每个短TTI内部的专用控制信道的类型、每个专用控制信道所占资源的位置和每个专用控制信道所使用的调制编码信息。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.
其中,所述专用控制信道包括短TTI专用的物理下行控制信道(Physical Downlink Control Channel,PDCCH)、短TTI专用的物理混合自动重传指示信道(Physical Hybrid ARQ Indicator Channel,PHICH)和短TTI专用的物理上行控制信道(Physical Uplink Control Channel,PUCCH)中的至少一个。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).
其中,所述基站利用PDCCH通知进行短TTI通信的资源分配信息,包括:The base station uses the PDCCH to notify the resource allocation information of the short TTI communication, including:
所述基站利用PDCCH中的下行控制信息(DCI,Downlink Control Information)信息单元中的调整编码方法(MCS,Modulation and Coding Scheme)字段的保留选项来传输短TTI通信的指示信息和/或短TTI通信格式的指示信息。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.
利用相关协议中未使用的字段来传输信息,充分利用了传输资源,且保证了与相关协议的兼容。The use of unused fields in the relevant protocol to transmit information, making full use of the transmission resources, and ensuring compatibility with the relevant protocols.
所述基站利用PDCCH通知进行短TTI通信的资源分配信息,包括:The base station uses the PDCCH to notify resource allocation information for performing short TTI communication, including:
所述基站利用PDCCH中专用的DCI单元格式发送进行短TTI通信的资源分配信息。The base station transmits resource allocation information for performing short TTI communication by using a dedicated DCI unit format in the PDCCH.
其中,通过所述专用的DCI单元格式发送的所述资源分配信息还包括:The resource allocation information that is sent by using the dedicated DCI unit format further includes:
指示所述资源分配信息是否在后续子帧中持续进行的指示信息;和/或,所述资源分配信息所持续的时间信息。And 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.
其中,该时间信息可以通过时间长度或子帧数来表示。
The time information can be represented by a length of time or a number of subframes.
其中,通过所述专用的DCI单元格式发送的所述资源分配信息同时包括短TTI通信的上行资源的指示信息和短TTI通信的下行资源的指示信息。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.
其中,所述方法还包括:The method further includes:
所述基站根据所述进行短TTI通信的资源分配信息,进行短TTI通信。The base station performs short TTI communication according to the resource allocation information for performing short TTI communication.
图1为本发明实施例提供的接收短传输时间间隔通信的资源分配信息的方法的流程图。图1所示方法包括以下步骤: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:
步骤101、用户设备从PDCCH中接收进行短TTI通信的资源分配信息;Step 101: The user equipment receives resource allocation information for performing short TTI communication from the PDCCH.
步骤102、所述用户设备利用所述进行短TTI通信的资源分配信息,进行短TTI通信。Step 102: The user equipment performs short TTI communication by using the resource allocation information for performing short TTI communication.
本发明实施例提供的方法,通过PDCCH接收进行短TTI通信的配置信息,实现了传输进行短TTI通信所需的资源分配信息的目的,为后续进行短TTI通信提供了配置依据。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.
其中,所述用户设备从PDCCH中接收进行短TTI通信的资源分配信息,包括:The receiving, by the user equipment, resource allocation information for performing short TTI communication from the PDCCH, includes:
所述用户设备从PDCCH中专用的DCI单元格式获取进行短TTI通信的资源分配信息。The user equipment acquires resource allocation information for performing short TTI communication from a dedicated DCI unit format in the PDCCH.
其中,所述用户设备从PDCCH中专用的DCI单元格式获取进行短TTI通信的资源分配信息,包括:The user equipment acquires resource allocation information for short TTI communication from a dedicated DCI unit format in the PDCCH, including:
所述用户设备获取所述进行短TTI通信的资源信息中的短TTI通信的指示信息和/或短TTI通信格式的指示信息,在得到所述短TTI通信的指示信息和/或短TTI通信格式的指示信息后,触发进行短TTI通信的操作。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.
其中,所述用户设备利用所述进行短TTI通信的资源分配信息,进行短TTI通信,包括:The user equipment performs short TTI communication by using the resource allocation information for performing short TTI communication, including:
所述用户设备根据所述进行短TTI通信的资源分配信息中的短TTI通信格式的指示信息,确定短TTI通信格式;Determining, by the user equipment, the 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;
所述用户设备获取所述短TTI通信格式对应的配置信息;
The user equipment acquires configuration information corresponding to the short TTI communication format;
所述用户设备利用所述短TTI通信格式对应的配置信息,进行短TTI通信的配置;The user equipment performs configuration of short TTI communication by using configuration information corresponding to the short TTI communication format;
其中,所述短TTI通信格式中包括的参数信息是通过系统广播消息或预先设定的消息发送的;或者,所述短TTI通信格式中包括的参数信息是由标准协议进行约定的。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.
图2为本发明实施例提供的LTE系统中进行短TTI通信的帧结构示意图。如图2所示,无论上行方向进行短TTI通信的资源,还是下行方向进行短TTI通信的资源,都是由PDCCH(Physical Downlink Control Channel,物理下行控制信道)中专用的下行控制信息(DCI)单元格式来动态指示的。站点(如基站或网络侧设备)可以根据业务需求、信道状况以及其他用户设备(UE)所处信道的频率选择性等因素灵活地调节每个子帧中进行短TTI通信的资源块的大小和位置。用户设备根据基站在PDCCH中专用的DCI单元格式中的信息在指定的资源块和基站进行短TTI通信。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 invention. As shown in FIG. 2, 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). 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.
为了进一步减少短TTI通信的信令开销,站点首先需要根据本小区所有或部分或单个低时延用户的业务需求选择合适的短TTI格式,然后通知这些用户进行短TTI通信所用的格式和无线资源。最后,在所指示的资源中,站点和用户设备按照所指示的短TTI通信的格式进行短TTI通信。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.
可选地,UE(User Equipment,用户设备)从DCI(Downlink Control Information,下行控制信息)中获取具体的进行短TTI接入的参数,所述参数包括短TTI的长度、每个短TTI中的控制信道的长度和配置等。可选地,为了减少信令开销,本发明实施例提出定义一些标准的短TTI通信格式,每个格式对应固定的短TTI接入的参数。这样,用户终端根据指示的简单的短TTI通信的格式信息(如格式序号)就可以决定进行短TTI通信的各项参数。Optionally, 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. Optionally, in order to reduce signaling overhead, 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.
可选地,当系统只支持单个缺省的短TTI格式时,DCI中的短TTI格式可以由单比特的短TTI指示信息代替。可选地,短TTI格式中可以包含短TTI内部的每个控制信道和相应的数据信道。可选地,短TTI格式可以仅包含短TTI内部的每个控制信道,具体进行短TTI通信的数据信道可以进一步由短TTI内部的每个控制信道中的信息来指示。Alternatively, when the system supports only a single default short TTI format, the short TTI format in the DCI may be replaced by a single bit of short TTI indication information. Optionally, each control channel and corresponding data channel within the short TTI may be included in the short TTI format. Alternatively, 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.
图3为本发明实施例提供的一种利用新的DCI格式指示短TTI通信的格
式的交互示意图。如图3所示,本发明实施例中提供的利用新定义的DCI格式指示短TTI格式的通信过程是这样实现的: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:
步骤1、基站用前述的新的DCI格式指示进行短TTI通信的资源。 Step 1. The base station indicates the resources for performing short TTI communication by using the aforementioned new DCI format.
步骤2、用户终端收到该新的DCI格式的资源分配指示后,根据获得的短TTI格式的信息进行短TTI通信。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.
其中,基站可以利用新定义的DCI格式指示短TTI通信的格式和资源。DCI格式中可以包含短TTI指示信息和/或短TTI格式指示信息;当然,新的DCI格式中,还可以包含短TTI通信的上行资源和/或下行资源。另外,新的DCI格式中还可以包含所定义的短TTI格式和资源的持续时间。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. In addition, the new DCI format can also contain the defined short TTI format and the duration of the resource.
图4为本发明实施例提供的一种新的指示短TTI通信的DCI格式的示意图。如图4所示,该格式包含3个区域:短TTI格式序号、上行资源分配、下行资源分配。在图4所示实施例中,短TTI通信的格式序号只占2比特,可以指示4种不同的短TTI格式。图4中,为下行系统带宽对应的物理资源块(PRB,Physical Resource Block)个数,为上行系统带宽对应的PRB个数,P为每个所分配的资源块组中的PRB数目(其中,分配是先划分为固定大小的组,然后以组为单位进行分配),表示向上取整。该区域可以占用更多的比特数来指示更多种短TTI通信的格式。其中,新的DCI格式中还可以包含所定义的短TTI格式和资源的持续时间。例如,当持续时间为10ms时,每10个传统TTI才需要一个DCI指示,从而尽量减小信令的开销。FIG. 4 is a schematic diagram of a new DCI format indicating short TTI communication according to an embodiment of the present invention. As shown in FIG. 4, the format includes three areas: a short TTI format sequence number, an uplink resource allocation, and a downlink resource allocation. In the embodiment shown in FIG. 4, the format number of the short TTI communication only occupies 2 bits, and 4 different short TTI formats can be indicated. In Figure 4, 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. This area can occupy more bits to indicate the format of more short TTI communications. 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.
图5为本发明实施例提供的一种利用MCS的保留字段指示短TTI通信的格式的交互示意图。如图5所示,本发明实施例中提供的利用MCS的保留字段指示短TTI格式的通信过程是这样实现的: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. As shown in FIG. 5, 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:
步骤1、基站在PDCCH中指示进行短TTI通信的资源,基站利用该指示中包含的MCS区域的保留字段来指示进行短TTI通信的格式,该资源分配指示可以与现有相关的资源分配指示完全相同; 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;
步骤2、用户终端收到该资源分配指示后,从指示中包含的MCS区域获得短TTI格式的信息,然后按该短TTI格式进行短TTI通信。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.
图6为本发明实施例提供的一种在PUSCH中利用MCS的保留字段指示
短TTI通信的格式的交互示意图。如图6所示,以前保留的(Reserved)MCS索引(Index)29~31分别用于指示在该上行资源中采用短TTI格式1~3(Short TTI Format 1~3)。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.
图7为本发明实施例提供的一种在PDSCH中利用MCS的保留字段指示短TTI格式的实施例。如图7所示,以前保留的(Reserved)MCS索引(Index)29~31分别用于指示在该下行资源中采用短TTI格式1~3(Short TTI Format1~3)。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. As shown in FIG. 7, 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.
本发明实施例提供一种发送短传输时间间隔通信的资源分配信息的装置,如图8所示,所述装置包括: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:
第一发送模块701,设置为:利用物理下行控制信道(PDCCH)通知进行短TTI通信的资源分配信息。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).
其中,所述资源分配信息包括如下信息中的至少一个:短TTI通信的指示信息、短TTI通信格式的指示信息、短TTI通信的上行资源的指示信息、短TTI通信的下行资源的指示信息。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.
其中,每个所述短TTI通信格式的指示信息为短TTI通信格式的格式编号。The indication information of each of the short TTI communication formats is a format number of a short TTI communication format.
其中,所述短TTI通信格式是预先设置的,每个格式对应一组进行短TTI通信的配置信息。The short TTI communication format is preset, and each format corresponds to a set of configuration information for performing short TTI communication.
其中,所述装置还包括:Wherein, the device further comprises:
第二发送模块702,设置为:向使用所述短TTI通信格式的一个或多个用户设备发送所述短TTI通信格式中包括的参数信息。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.
其中,among them,
所述短TTI通信格式中包括的参数信息是通过系统广播消息或预先设定的消息发送的;或者,The parameter information included in the short TTI communication format is sent by a system broadcast message or a preset message; or
所述短TTI通信格式中包括的参数信息是由标准协议进行约定的。The parameter information included in the short TTI communication format is agreed by a standard protocol.
其中,所述进行短TTI通信的配置信息包括如下至少一个:The configuration information for performing the short TTI communication includes at least one of the following:
短TTI的长度、每个短TTI内的专用控制信道的长度、每个短TTI内部
的专用控制信道的类型、每个专用控制信道所占资源的位置、每个专用控制信道所使用的调制编码信息。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.
其中,所述专用控制信道包括短TTI专用的物理下行控制信道(PDCCH)、短TTI专用的物理混合自动重传指示信道(PHICH)和短TTI专用的物理上行控制信道(PUCCH)中的至少一个。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). .
所述第一发送模块701是设置为:利用物理下行控制信道(PDCCH)中的DCI信息单元中的调整编码方法(MCS)字段的保留选项来传输短TTI通信的指示信息和/或短TTI通信格式的指示信息。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.
其中,所述第一发送模块701是设置为:利用物理下行控制信道(PDCCH)中专用的DCI单元格式发送进行短TTI通信的资源分配信息。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).
其中,通过所述专用的DCI单元格式发送的所述资源分配信息还包括:The resource allocation information that is sent by using the dedicated DCI unit format further includes:
指示所述资源分配信息是否在后续子帧中持续进行的指示信息;和/或,所述资源分配信息所持续的时间信息。And 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.
其中,通过所述专用的DCI单元格式DCI发送的所述资源分配信息同时包括短TTI通信的上行资源的指示信息和短TTI通信的下行资源的指示信息。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.
其中,所述装置还包括:Wherein, the device further comprises:
第一通信模块703,设置为:根据所述进行短TTI通信的资源分配信息,进行短TTI通信。The first communication module 703 is configured to perform short TTI communication according to the resource allocation information for performing short TTI communication.
本发明实施例提供的装置,通过PDCCH通知进行短TTI通信的配置信息,实现传输进行短TTI通信所需的资源分配信息的目的,为后续进行短TTI通信提供了配置依据。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.
图9为本发明实施例提供的接收短传输时间间隔通信的资源分配信息的装置的结构图。图9所示装置,包括: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:
接收模块801,设置为:从PDCCH中接收进行短TTI通信的资源分配信息;The receiving module 801 is configured to: receive resource allocation information for performing short TTI communication from the PDCCH;
第二通信模块802,设置为:利用所述进行短TTI通信的资源分配信息,进行短TTI通信。
The second communication module 802 is configured to perform short TTI communication by using the resource allocation information for performing short TTI communication.
其中,所述接收模块801是设置为:The receiving module 801 is configured to:
从PDCCH中专用的DCI单元格式获取进行短TTI通信的资源分配信息。The resource allocation information for performing short TTI communication is acquired from a dedicated DCI unit format in the PDCCH.
其中,所述接收模块801是设置为:The receiving module 801 is configured to:
获取所述进行短TTI通信的资源信息中的所述短TTI通信的指示信息和/或短TTI通信格式的指示信息,在得到所述短TTI通信的指示信息和/或短TTI通信格式的指示信息后,触发进行短TTI通信的操作。Acquiring the indication information of the short TTI communication and/or the indication information of the short TTI communication format in the resource information for performing the short TTI communication, and obtaining the indication information of the short TTI communication and/or the indication of the short TTI communication format After the information, the operation of performing short TTI communication is triggered.
其中,所述第二通信模块802包括:The second communication module 802 includes:
确定单元,设置为:根据所述进行短TTI通信的资源分配信息中的短TTI通信格式的指示信息,确定短TTI通信格式;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;
获取单元,设置为:获取所述短TTI通信格式对应的配置信息;An obtaining unit, configured to: obtain configuration information corresponding to the short TTI communication format;
配置单元,设置为:利用所述短TTI通信格式对应的配置信息,进行短TTI通信的配置;a configuration unit, configured to: perform short TTI communication configuration by using configuration information corresponding to the short TTI communication format;
其中,所述短TTI通信格式中包括的参数信息是通过系统广播消息或预先设定的消息发送的;或者,所述短TTI通信格式中包括的参数信息是由标准协议进行约定的。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.
本发明实施例提供的装置,通过PDCCH获取进行短TTI通信的配置信息,实现了传输进行短TTI通信所需的资源分配信息的目的,为进行短TTI通信提供了配置依据。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.
此外,本发明实施例还提供一种计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令被执行时实现所述发送短TTI通信的资源分配信息的方法。In addition, 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.
此外,本发明实施例还提供一种计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令被执行时实现所述接收短TTI通信的资源分配信息的方法。In addition, 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.
本领域普通技术人员可以理解上述实施例的全部或部分步骤可以使用计算机程序流程来实现,所述计算机程序可以存储于一计算机可读存储介质中,所述计算机程序在相应的硬件平台上(如系统、设备、装置、器件等)执行,在执行时,包括方法实施例的步骤之一或其组合。例如,通过处理器执行存
储于存储器中的程序/指令来实现相应功能。One of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described embodiments can be implemented using a computer program flow, which can be stored in a computer readable storage medium, such as on a corresponding hardware platform (eg, The system, device, device, device, etc. are executed, and when executed, include one or a combination of the steps of the method embodiments. For example, executing the program through the processor
Programs/instructions stored in memory to implement the corresponding functions.
可选地,上述实施例的全部或部分步骤也可以使用集成电路来实现,这些步骤可以被分别制作成一个个集成电路模块,或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样,本申请不限制于任何特定的硬件和软件结合。Alternatively, 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.
上述实施例中的各装置/功能模块/功能单元可以采用通用的计算装置来实现,它们可以集中在单个的计算装置上,也可以分布在多个计算装置所组成的网络上。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.
上述实施例中的各装置/功能模块/功能单元以软件功能模块的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。上述提到的计算机可读取存储介质可以是只读存储器,磁盘或光盘等。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.
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以权利要求所述的保护范围为准。The foregoing is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application. It should be covered by the scope of protection of this application. Therefore, the scope of protection of the application should be determined by the scope of protection described in the claims.
本发明实施例提供一种发送、接收短TTI通信的资源分配信息的方法和装置,通过PDCCH通知进行短TTI通信的配置信息,实现传输进行短TTI通信所需的资源分配信息的目的,为后续进行短TTI通信提供了配置依据。
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.
Claims (34)
- 一种发送短传输时间间隔TTI通信的资源分配信息的方法,包括:A method for transmitting resource allocation information of short transmission time interval TTI communication, comprising:基站利用物理下行控制信道PDCCH通知进行短TTI通信的资源分配信息。The base station notifies the resource allocation information for performing short TTI communication by using the physical downlink control channel PDCCH.
- 根据权利要求1所述的方法,其中,所述资源分配信息包括如下信息中的至少一个:短TTI通信的指示信息、短TTI通信格式的指示信息、短TTI通信的上行资源的指示信息、短TTI通信的下行资源的指示信息。The method according to claim 1, wherein the resource allocation information comprises at least one of: indication information of short TTI communication, indication information of a short TTI communication format, indication information of an uplink resource of short TTI communication, short Indication information of downlink resources of TTI communication.
- 根据权利要求2所述的方法,其中,每个所述短TTI通信格式的指示信息为短TTI通信格式的格式编号。The method of claim 2, wherein the indication information of each of the short TTI communication formats is a format number of a short TTI communication format.
- 根据权利要求3所述的方法,其中,所述短TTI通信格式是预先设置的,每个格式对应一组进行短TTI通信的配置信息。The method of claim 3, wherein the short TTI communication format is preset, each format corresponding to a set of configuration information for performing short TTI communication.
- 根据权利要求4所述的方法,所述方法还包括:The method of claim 4, further comprising:所述基站向使用所述短TTI通信格式的一个或多个用户设备发送所述短TTI通信格式中包括的参数信息。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.
- 根据权利要求5所述的方法,其中,The method of claim 5, wherein所述短TTI通信格式中包括的参数信息是通过系统广播消息或预先设定的消息发送的;或者,The parameter information included in the short TTI communication format is sent by a system broadcast message or a preset message; or所述短TTI通信格式中包括的参数信息是由标准协议进行约定的。The parameter information included in the short TTI communication format is agreed by a standard protocol.
- 根据权利要求4所述的方法,其中,所述进行短TTI通信的配置信息包括如下至少一个:The method of claim 4, wherein the configuration information for performing short TTI communication comprises at least one of the following:短TTI的长度、每个短TTI内的专用控制信道的长度、每个短TTI内部的专用控制信道的类型、每个专用控制信道所占资源的位置、每个专用控制信道所使用的调制编码信息。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.
- 根据权利要求7所述的方法,其中,所述专用控制信道包括短TTI专用的物理下行控制信道PDCCH、短TTI专用的物理混合自动重传指示信道PHICH和短TTI专用的物理上行控制信道PUCCH中的至少一个。The method according to claim 7, wherein the dedicated control channel comprises 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. At least one of them.
- 根据权利要求1所述的方法,其中,所述基站利用物理下行控制信道 PDCCH通知进行短TTI通信的资源分配信息,包括:The method of claim 1 wherein said base station utilizes a physical downlink control channel The PDCCH notifies the resource allocation information for performing short TTI communication, including:所述基站利用物理下行控制信道PDCCH中的下行控制信息DCI信息单元中的调整编码方法MCS字段的保留选项来传输短TTI通信的指示信息和/或短TTI通信格式的指示信息。The base station transmits the indication information of the short TTI communication and/or the indication information of the short TTI communication format by using a reservation option of the adjustment coding method MCS field in the downlink control information DCI information unit in the physical downlink control channel PDCCH.
- 根据权利要求1所述的方法,其中,所述基站利用物理下行控制信道PDCCH通知进行短TTI通信的资源分配信息,包括:The method according to claim 1, wherein the base station notifies the resource allocation information for performing short TTI communication by using a physical downlink control channel PDCCH, including:所述基站利用物理下行控制信道PDCCH中专用的下行控制信息DCI单元格式发送进行短TTI通信的资源分配信息。The base station transmits resource allocation information for performing short TTI communication by using a dedicated downlink control information DCI unit format in the physical downlink control channel PDCCH.
- 根据权利要求10所述的方法,其中,通过所述专用的DCI单元格式发送的所述资源分配信息还包括:The method of claim 10, wherein the resource allocation information sent by the dedicated DCI unit format further comprises:指示所述资源分配信息是否在后续子帧中持续进行的指示信息;和/或,所述资源分配信息所持续的时间信息。And 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.
- 根据权利要求10或11所述的方法,其中,通过所述专用的DCI单元格式发送的所述资源分配信息同时包括短TTI通信的上行资源的指示信息和短TTI通信的下行资源的指示信息。The method according to claim 10 or 11, wherein the resource allocation information transmitted by the dedicated DCI unit format includes indication information of uplink resources of short TTI communication and indication information of downlink resources of short TTI communication.
- 根据权利要求1所述的方法,所述方法还包括:The method of claim 1 further comprising:所述基站根据所述进行短TTI通信的资源分配信息,进行短TTI通信。The base station performs short TTI communication according to the resource allocation information for performing short TTI communication.
- 一种接收短传输时间间隔TTI通信的资源分配信息的方法,包括:A method for receiving resource allocation information of short transmission time interval TTI communication, comprising:用户设备从物理下行控制信道PDCCH中接收进行短TTI通信的资源分配信息;The user equipment receives resource allocation information for performing short TTI communication from the physical downlink control channel PDCCH;所述用户设备利用所述进行短TTI通信的资源分配信息,进行短TTI通信。The user equipment performs short TTI communication by using the resource allocation information for performing short TTI communication.
- 根据权利要求14所述的方法,其中,所述用户设备从PDCCH中接收进行短TTI通信的资源分配信息,包括:The method according to claim 14, wherein the user equipment receives resource allocation information for performing short TTI communication from the PDCCH, including:所述用户设备从PDCCH中专用的下行控制信息DCI单元格式获取进行短TTI通信的资源分配信息。The user equipment acquires resource allocation information for performing short TTI communication from a dedicated downlink control information DCI unit format in the PDCCH.
- 根据权利要求15所述的方法,其中,所述用户设备从PDCCH中专 用的DCI单元格式获取进行短TTI通信的资源分配信息,包括:The method according to claim 15, wherein the user equipment is specialized from the PDCCH The used DCI unit format acquires resource allocation information for short TTI communication, including:所述用户设备获取所述进行短TTI通信的资源信息中的短TTI通信的指示信息和/或短TTI通信格式的指示信息,在得到所述短TTI通信的指示信息和/或短TTI通信格式的指示信息后,触发进行短TTI通信的操作。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.
- 根据权利要求15或16所述的方法,其中,所述用户设备利用所述进行短TTI通信的资源分配信息,进行短TTI通信,包括:The method according to claim 15 or 16, wherein the user equipment performs short TTI communication by using the resource allocation information for performing short TTI communication, including:所述用户设备根据所述进行短TTI通信的资源分配信息中的短TTI通信格式的指示信息,确定短TTI通信格式;Determining, by the user equipment, the 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;所述用户设备获取所述短TTI通信格式对应的配置信息;The user equipment acquires configuration information corresponding to the short TTI communication format;所述用户设备利用所述短TTI通信格式对应的配置信息,进行短TTI通信的配置;The user equipment performs configuration of short TTI communication by using configuration information corresponding to the short TTI communication format;其中,所述短TTI通信格式中包括的参数信息是通过系统广播消息或预先设定的消息发送的;或者,所述短TTI通信格式中包括的参数信息是由标准协议进行约定的。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.
- 一种发送短传输时间间隔TTI通信的资源分配信息的装置,包括:An apparatus for transmitting resource allocation information of a short transmission time interval TTI communication, comprising:第一发送模块,设置为:利用物理下行控制信道PDCCH通知进行短TTI通信的资源分配信息。The first sending module is configured to: notify the resource allocation information for performing short TTI communication by using a physical downlink control channel PDCCH.
- 根据权利要求18所述的装置,其中,所述资源分配信息包括如下信息中的至少一个:短TTI通信的指示信息、短TTI通信格式的指示信息、短TTI通信的上行资源的指示信息、短TTI通信的下行资源的指示信息。The apparatus according to claim 18, wherein the resource allocation information comprises at least one of: indication information of short TTI communication, indication information of a short TTI communication format, indication information of an uplink resource of short TTI communication, short Indication information of downlink resources of TTI communication.
- 根据权利要求19所述的装置,其中,每个所述短TTI通信格式的指示信息为短TTI通信格式的格式编号。The apparatus of claim 19, wherein the indication information of each of the short TTI communication formats is a format number of a short TTI communication format.
- 根据权利要求20所述的装置,其中,所述短TTI通信格式是预先设置的,每个格式对应一组进行短TTI通信的配置信息。The apparatus of claim 20, wherein the short TTI communication format is preset, each format corresponding to a set of configuration information for performing short TTI communication.
- 根据权利要求21所述的装置,所述装置还包括:The device of claim 21, the device further comprising:第二发送模块,设置为:向使用所述短TTI通信格式的一个或多个用户设备发送所述短TTI通信格式中包括的参数信息。 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.
- 根据权利要求22所述的装置,其中,The device according to claim 22, wherein所述短TTI通信格式中包括的参数信息是通过系统广播消息或预先设定的消息发送的;或者,The parameter information included in the short TTI communication format is sent by a system broadcast message or a preset message; or所述短TTI通信格式中包括的参数信息是由标准协议进行约定的。The parameter information included in the short TTI communication format is agreed by a standard protocol.
- 根据权利要求21所述的装置,其中,所述进行短TTI通信的配置信息包括如下至少一个:The apparatus according to claim 21, wherein said configuration information for performing short TTI communication comprises at least one of the following:短TTI的长度、每个短TTI内的专用控制信道的长度、每个短TTI内部的专用控制信道的类型、每个专用控制信道所占资源的位置、每个专用控制信道所使用的调制编码信息。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.
- 根据权利要求24所述的装置,其中,所述专用控制信道包括短TTI专用的物理下行控制信道PDCCH、短TTI专用的物理混合自动重传指示信道PHICH和短TTI专用的物理上行控制信道PUCCH中的至少一个。The apparatus according to claim 24, wherein the dedicated control channel comprises 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 At least one of them.
- 根据权利要求18所述的装置,其中,所述第一发送模块是设置为:利用物理下行控制信道PDCCH中的下行控制信息DCI信息单元中的调整编码方法MCS字段的保留选项来传输短TTI通信的指示信息和/或短TTI通信格式的指示信息。The apparatus according to claim 18, wherein the first sending module is configured to: transmit short TTI communication by using a reserved option of an adjustment coding method MCS field in a downlink control information DCI information element in a physical downlink control channel PDCCH Indication information and/or indication information of a short TTI communication format.
- 根据权利要求18所述的装置,其中,所述第一发送模块是设置为:利用物理下行控制信道PDCCH中专用的下行控制信息DCI单元格式发送进行短TTI通信的资源分配信息。The apparatus according to claim 18, wherein the first transmitting module is configured to: transmit 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.
- 根据权利要求27所述的装置,其中,通过所述专用的DCI单元格式发送的所述资源分配信息还包括:The apparatus of claim 27, wherein the resource allocation information sent by the dedicated DCI unit format further comprises:指示所述资源分配信息是否在后续子帧中持续进行的指示信息;和/或,所述资源分配信息所持续的时间信息。And 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.
- 根据权利要求27或28所述的装置,其中,通过DCI发送的所述资源分配信息同时包括短TTI通信的上行资源的指示信息和短TTI通信的下行资源的指示信息。The apparatus according to claim 27 or 28, wherein the resource allocation information transmitted by the DCI includes indication information of an uplink resource of short TTI communication and indication information of a downlink resource of short TTI communication.
- 根据权利要求18所述的装置,所述装置还包括:The device of claim 18, the device further comprising:第一通信模块,设置为:根据所述进行短TTI通信的资源分配信息,进 行短TTI通信。The first communication module is configured to: according to the resource allocation information for performing short TTI communication, Short TTI communication.
- 一种接收短传输时间间隔TTI通信的资源分配信息的装置,包括:An apparatus for receiving resource allocation information of a short transmission time interval TTI communication, comprising:接收模块,设置为:从物理下行控制信道PDCCH中接收进行短TTI通信的资源分配信息;The receiving module is configured to: receive resource allocation information for performing short TTI communication from the physical downlink control channel PDCCH;第二通信模块,设置为:利用所述进行短TTI通信的资源分配信息,进行短TTI通信。The second communication module is configured to perform short TTI communication by using the resource allocation information for performing short TTI communication.
- 根据权利要求31所述的装置,其中,所述接收模块是设置为:The apparatus of claim 31 wherein said receiving module is configured to:从PDCCH中专用的下行控制信息DCI单元格式获取进行短TTI通信的资源分配信息。The resource allocation information for performing short TTI communication is acquired from the dedicated downlink control information DCI unit format in the PDCCH.
- 根据权利要求32所述的装置,其中,所述接收模块是设置为:The apparatus of claim 32 wherein said receiving module is configured to:获取所述进行短TTI通信的资源信息中的所述短TTI通信的指示信息和/或短TTI通信格式的指示信息,在得到所述短TTI通信的指示信息和/或短TTI通信格式的指示信息后,触发进行短TTI通信的操作。Acquiring the indication information of the short TTI communication and/or the indication information of the short TTI communication format in the resource information for performing the short TTI communication, and obtaining the indication information of the short TTI communication and/or the indication of the short TTI communication format After the information, the operation of performing short TTI communication is triggered.
- 根据权利要求32或33所述的装置,其中,所述第二通信模块包括:The apparatus of claim 32 or 33, wherein the second communication module comprises:确定单元,设置为:根据所述进行短TTI通信的资源分配信息中的短TTI通信格式的指示信息,确定短TTI通信格式;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;获取单元,设置为:获取所述短TTI通信格式对应的配置信息;An obtaining unit, configured to: obtain configuration information corresponding to the short TTI communication format;配置单元,设置为:利用所述短TTI通信格式对应的配置信息,进行短TTI通信的配置;a configuration unit, configured to: perform short TTI communication configuration by using configuration information corresponding to the short TTI communication format;其中,所述短TTI通信格式中包括的参数信息是通过系统广播消息或预先设定的消息发送的;或者,所述短TTI通信格式中包括的参数信息是由标准协议进行约定的。 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.
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