WO2016177178A1 - 发送、接收短传输时间间隔通信的信息的方法和装置 - Google Patents

发送、接收短传输时间间隔通信的信息的方法和装置 Download PDF

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Publication number
WO2016177178A1
WO2016177178A1 PCT/CN2016/077540 CN2016077540W WO2016177178A1 WO 2016177178 A1 WO2016177178 A1 WO 2016177178A1 CN 2016077540 W CN2016077540 W CN 2016077540W WO 2016177178 A1 WO2016177178 A1 WO 2016177178A1
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Prior art keywords
short tti
category
base station
information
short
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PCT/CN2016/077540
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English (en)
French (fr)
Inventor
邹伟
戴博
戴谦
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中兴通讯股份有限公司
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Publication of WO2016177178A1 publication Critical patent/WO2016177178A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/002—Transmission of channel access control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
    • H04W74/0841—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure with collision treatment
    • H04W74/085—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure with collision treatment collision avoidance

Definitions

  • This application relates to, but is not limited to, the field of communications.
  • 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 capacity of the user equipment supported by the future 5G system can reach 3 to 3 million user equipments 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 capacity of the user equipment supported by the future 5G system can reach 3 to 3 million user equipments 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 reduces the processing delay and backhaul delay by reducing the Transmission Time Interval (TTI) of the LTE system to support the ultra-low latency requirement of certain services.
  • TTI Transmission Time Interval
  • OFDM Orthogonal Frequency Division Multiplexing
  • Another approach is to reduce the TTI length by reducing the number of OFDM symbols in a single TTI as currently discussed by 3GPP; the benefit of this approach is that it is fully compatible with existing LTE systems. This application mainly discusses the requirements of the latter method for the LTE system.
  • the present invention provides a method and apparatus for transmitting and receiving short transmission time interval communication information, which can quickly implement short TTI communication for subsequent connection establishment and communication.
  • a method for transmitting information of short transmission time interval communication comprising:
  • the base station sends a short transmission time interval TTI category to the user equipment through the paging message.
  • the base station sends the short TTI category when it detects that downlink service data arrives.
  • the user equipment is a receiver of the downlink service data.
  • the sending, by the base station, the short transmission time interval TTI category to the user equipment by using the paging message includes:
  • Mode a the base station receives a paging message that is sent by the mobility management entity MME and carries a short TTI category, and forwards the paging message to the user equipment.
  • Mode b the base station receives a paging message that is sent by the MME and carries a short TTI category, updates a short TTI category in the paging message, and sends an updated paging message to the user equipment.
  • Mode c The base station receives the service information of the low-latency service sent by the MME, determines a short TTI category corresponding to the low-latency service, and sends a paging message with a short TTI category to the user equipment.
  • the base station is configured to update or determine a short TTI category according to at least one information, including: the short TTI category, access information corresponding to the short TTI category, and the The service status information of the base station.
  • the access information corresponding to the short TTI category includes at least one of the following:
  • a TTI length of the short TTI category an uplink resource location used for performing communication in the short TTI category, a downlink resource location used for performing communication in the short TTI category, and a paging used to transmit the short TTI category Channel information, location information of a random access channel RACH used for performing communication in the short TTI category, and random access sequence information used in the RACH.
  • the RACHs in the configuration information of different short TTI types are the same or different.
  • the access information corresponding to the short TTI category further includes:
  • the random access sequence information is a pre-designated random access sequence; and/or indication information for communicating using a non-collision random access procedure.
  • the base station sends a short TTI category to the user equipment by using a paging message, including:
  • the base station When the base station and the user equipment support multiple paging channels, the base station sends a paging message to the user equipment on a paging channel selected by the MME or selected by the base station, where the paging channel includes a non- Paging channel in short TTI format and/or paging channel in short TTI format.
  • the method further includes:
  • the base station broadcasts the short TTI category and the access information corresponding to the short TTI category to all user equipments.
  • the same broadcast message includes one or at least two short TTI categories.
  • the method further includes:
  • the base station changes access information corresponding to the short TTI category.
  • the base station according to the access information corresponding to the locally supported short TTI category and the following At least one information, changing the access information corresponding to the short TTI category, including:
  • the method further includes:
  • the base station broadcasts the short TTI category and the access information corresponding to the changed short TTI category to all user equipments.
  • the method further includes:
  • the base station When the short TTI category in the paging message is determined by the MME, if the base station changes the access information corresponding to the short TTI category, the base station reports the changed access information to the MME.
  • the method further includes:
  • the base station sends the category information and capability information of the locally supported paging channel to the MME.
  • a method for receiving information of short transmission time interval communication comprising:
  • the user equipment performs short TTI communication according to a short TTI category in the paging message.
  • the user equipment performs short TTI communication according to the short TTI category in the paging message, including:
  • the user equipment acquires the short TTI category corresponding access information from the access information corresponding to the short TTI category broadcasted by the base station, and performs short TTI communication according to the access information.
  • An apparatus for transmitting information of short transmission time interval communication comprising:
  • the first sending module is configured to: send a TTI category to the user equipment by using a paging message.
  • the first sending module is configured to: when it is detected that downlink service data arrives The short TTI category is sent.
  • the user equipment is a receiver of the downlink service data.
  • the first sending module is configured to:
  • Manipula a receiving a paging message carrying a short TTI category sent by the mobility management entity MME, and forwarding the paging message to the user equipment;
  • Manner b receiving a paging message carrying a short TTI category sent by the MME, updating a short TTI category in the paging message, and sending an updated paging message to the user equipment;
  • the mode c receiving the service information of the low-latency service sent by the MME, determining the short TTI category corresponding to the low-latency service, and sending the paging message with the short TTI category to the user equipment.
  • the first sending module is configured to: update or determine a short TTI category according to at least one information, including: the short TTI category, the short TTI category, Access information and service status information of the base station.
  • the access information corresponding to the short TTI category includes at least one of the following:
  • a TTI length of the short TTI category an uplink resource location used for performing communication in the short TTI category, a downlink resource location used for performing communication in the short TTI category, and a paging used to transmit the short TTI category Channel information, location information of a random access channel RACH used for performing communication in the short TTI category, and random access sequence information used in the RACH.
  • the RACHs in the configuration information of different short TTI types are the same or different.
  • the access information corresponding to the short TTI category further includes:
  • the random access sequence information is a pre-designated random access sequence; and/or indication information for communicating using a non-collision random access procedure.
  • the first sending module is further configured to: when the base station and the user equipment support multiple paging channels, send to the user equipment on a paging channel selected by the MME or selected by the base station.
  • a paging message wherein the paging channel comprises a paging channel in a non-short TTI format and/or a paging channel in a short TTI format.
  • the device further includes:
  • the first broadcast module is configured to: broadcast the access information corresponding to the short TTI category and the short TTI category to all user equipments.
  • the same broadcast message includes one or at least two short TTI categories.
  • the device further includes:
  • Change the module set to: change the access information corresponding to the short TTI category.
  • the changing module is configured to: change the access information corresponding to the short TTI category according to the access information corresponding to the locally supported short TTI category, and the following at least one information, including:
  • the device further includes:
  • the second broadcast module is configured to: after changing the access information corresponding to the short TTI category, broadcast the short TTI category and the access information corresponding to the changed short TTI category to all user equipments.
  • the device further includes:
  • a reporting module configured to: after changing the access information corresponding to the short TTI category, when the short TTI category in the paging message is determined by the MME, if the access information corresponding to the short TTI category is changed, The changed access information is reported to the MME.
  • the device further includes:
  • the second sending module is configured to: send category information and capability information of the locally supported paging channel to the MME.
  • An apparatus for receiving information of short transmission time interval communication comprising:
  • a receiving module configured to: receive a paging message, where the paging message includes a short transmission time interval TTI category;
  • the communication module is configured to: perform short TTI communication according to a short TTI category in the paging message.
  • the communication module includes:
  • An acquiring unit configured to: obtain, according to the access information corresponding to the short TTI category broadcasted by the base station, the access information corresponding to the short TTI category;
  • the communication unit is configured to perform short TTI communication according to the access information.
  • a computer readable storage medium storing computer executable instructions for performing the method of any of the above.
  • the embodiment of the present invention directly indicates the short TTI category by using the paging message, so that the user equipment immediately enters the short TTI communication mode according to the short TTI category for subsequent signaling interaction, thereby greatly reducing the delay of the entire communication process, and effectively supporting the low Delay business.
  • FIG. 1 is a flowchart of an embodiment of a method for transmitting short transmission time interval communication information according to an embodiment of the present invention
  • FIG. 2 is a flowchart of an embodiment of a method for receiving short transmission time interval communication information according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a frame structure for performing multi-short TTI category communication in an LTE system according to an embodiment of the present disclosure
  • FIG. 4 is a flowchart of communication performed by a base station to perform multiple short TTI category indications in system broadcast information according to an embodiment of the present disclosure
  • FIG. 5 is a flowchart of a communication determining a short TTI category by a mobility management entity according to an embodiment of the present invention
  • FIG. 6 is a flowchart of a communication that determines a short TTI category by a base station according to an embodiment of the present invention
  • FIG. 7 is a flowchart of a subsequent communication initiated by a user equipment according to short TTI category information in a paging message according to an embodiment of the present invention
  • FIG. 8 is a schematic diagram of an apparatus for transmitting short transmission time interval communication information according to an embodiment of the present invention.
  • FIG. 9 is a structural diagram of an apparatus for receiving short transmission time interval communication information according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a communication module according to an embodiment of the present invention.
  • An embodiment of the present invention provides a method for transmitting information of short transmission time interval communication, as shown in FIG. 1 , including:
  • Step 101 The base station sends a short transmission time interval TTI category to the user equipment by using a paging message.
  • An embodiment of the method provided by the embodiment of the present invention directly indicates a short TTI category by using a paging message, so that the user equipment immediately enters the short TTI communication mode according to the short TTI category for subsequent signaling interaction, thereby greatly reducing the delay of the entire communication process. Effectively support low latency services.
  • the base station transmits the short TTI category when it detects that downlink service data arrives.
  • the user equipment is a receiver of the downlink service data.
  • the base station When receiving the downlink low delay data, the base station determines that the receiver of the low delay data, that is, the user equipment mentioned above, indicates to the user equipment that the low TTI communication is used to transmit the low time.
  • the short TTI category corresponding to the data extension.
  • the base station broadcasts the access information corresponding to the short TTI category and the short TTI category to all user equipments.
  • the user equipment can conveniently obtain the required access information, which is simple and convenient.
  • the sending, by the base station, the short transmission time interval TTI category to the user equipment by using the paging message includes:
  • Mode a The base station receives a paging that carries a short TTI category sent by the mobility management entity MME And forwarding the paging message to the user equipment;
  • Mode b the base station receives a paging message that is sent by the MME and carries a short TTI category, updates a short TTI category in the paging message, and sends an updated paging message to the user equipment.
  • Mode c The base station receives the service information of the low-latency service sent by the MME, determines a short TTI category corresponding to the low-latency service, and sends a paging message with a short TTI category to the user equipment.
  • the base station is configured to update or determine the short TTI category according to the at least one information, including: the short TTI category, the access information corresponding to the short TTI category, and the service status of the base station. information.
  • the access information corresponding to the short TTI category includes at least one of the following:
  • a TTI length of the short TTI category an uplink resource location used for performing communication in the short TTI category, a downlink resource location used for performing communication in the short TTI category, and a paging used to transmit the short TTI category Channel information, location information of a random access channel (RACH, Random Access Channel) used for communication in the short TTI category, and random access sequence information used in the RACH.
  • RACH Random Access Channel
  • the RACHs in the configuration information of different short TTI types are the same or different.
  • the access information corresponding to the short TTI category further includes:
  • the random access sequence information is a pre-designated random access sequence; and/or indication information for communicating using a non-collision random access procedure.
  • the time required for the random access process of the user equipment part can be effectively shortened, and the data receiving efficiency is improved.
  • the sending, by the base station, the short TTI category to the user equipment by using the paging message further includes:
  • the base station When the base station and the user equipment support multiple paging channels, the base station sends a paging message to the user equipment on a paging channel selected by the MME or selected by the base station, where the paging channel includes a non- Paging channel in short TTI format and/or paging channel in short TTI format.
  • the method further includes:
  • the base station broadcasts the short TTI category and the access information corresponding to the short TTI category to all user equipments.
  • the same broadcast message includes one or at least two short TTI categories.
  • the base station changes the access information corresponding to the short TTI category.
  • the base station changes the access information corresponding to the short TTI category according to the access information corresponding to the short TTI category supported by the local station, and the following at least one information, including:
  • the radio resource corresponding to the TTI category may be increased; or the size of the RACH channel may be increased. Conversely, if the service corresponding to a certain TTI category is reduced, the TTI may be reduced. The radio resource corresponding to the category, or the size of the RACH channel is reduced.
  • the method further includes:
  • the base station broadcasts the short TTI category and the access information corresponding to the changed short TTI category to all user equipments.
  • the method further includes:
  • the base station When the short TTI category in the paging message is determined by the MME, if the base station changes the access information corresponding to the short TTI category, the base station reports the changed access information to the MME.
  • the base station notifies the MME of the changed access information, and further includes:
  • the base station sends the category information and capability information of the locally supported paging channel to the MME.
  • the MME is configured to transmit a paging message by selecting an appropriate paging channel by transmitting the category information and capability information of the locally supported paging channel to the MME.
  • Embodiments of the present invention further provide a computer readable storage medium storing computer executable instructions for performing the above method of transmitting information of short transmission time interval communication.
  • FIG. 2 is a flowchart of an embodiment of a method for receiving short transmission time interval communication information according to an embodiment of the present invention.
  • the method shown in Figure 2 includes:
  • Step 201 The user equipment receives a paging message, where the paging message includes a short transmission time interval TTI category;
  • Step 202 The user equipment performs short TTI communication according to a short TTI category in the paging message.
  • the embodiment of the present invention directly indicates the short TTI category by using the paging message, so that the user equipment immediately enters the short TTI communication mode according to the short TTI category for subsequent signaling interaction, thereby greatly reducing the delay of the entire communication process, and effectively supporting the low Delay business.
  • the user equipment performs short TTI communication according to the short TTI category in the paging message, and the user equipment obtains the short TTI category corresponding to the access information corresponding to the short TTI category broadcasted by the base station. Accessing information and performing short TTI communication based on the access information.
  • the embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions for performing the foregoing method of receiving information of short transmission time interval communication.
  • FIG. 3 is a schematic structural diagram of a frame for performing multi-short TTI category communication in an LTE system according to an embodiment of the present invention.
  • the base station may determine the configuration of each short TTI category according to the traffic load condition or other factors, including the corresponding short TTI length, and perform uplink and downlink resource positions of the short TTI communication, and corresponding random access channels. Location information, as well as information on random access sequences that can be used in RACH.
  • FIG. 4 is a flowchart of communication performed by a base station to perform multiple short TTI category indications in system broadcast information according to an embodiment of the present invention. As shown in Figure 4, the following steps are included:
  • Step 401 After determining the configuration of each short TTI category, the base station performs the short TTI category and its corresponding information, including the corresponding short TTI length, for uplink and downlink of the short TTI communication.
  • Source location location information of a corresponding random access channel (RACH), and information of a random access sequence that can be used in the RACH;
  • RACH random access channel
  • Step 402 The base station sends each short TTI category and corresponding information in a system broadcast message to user equipments in all cells.
  • FIG. 5 is a flow chart of communication determined by a mobility management entity to determine a short TTI category according to an embodiment of the present invention. As shown in Figure 5, the process of determining a short TTI category for a paging message is accomplished as follows:
  • Step 501 The base station sends the supported short TTI category and its corresponding information to the mobility management entity.
  • the information may include the corresponding short TTI length, the uplink and downlink resource locations of the short TTI communication, and the corresponding random access channel.
  • Step 502 The mobility management entity directly selects a suitable short TTI category according to the low latency requirement of the service;
  • Step 503 The mobility management entity indicates a short TTI category in a paging signal addressed to the user equipment.
  • Step 504 The base station directly broadcasts the paging message received from the mobility management entity to the user equipment.
  • FIG. 6 is a schematic diagram of a communication embodiment in which a short TTI category is determined by a base station according to an embodiment of the present invention. As shown in Figure 6, the process of determining a short TTI category for a paging message is accomplished as follows:
  • Step 601 The mobility management entity sends the low delay level of the service to the base station while transmitting the paging message.
  • the mobility management entity may include the low latency level of the service in the paging message sent to the base station; optionally, the mobility management entity may also include the low latency level of the service in other messages and paging. The message is sent to the base station together.
  • Step 602 The base station selects a suitable short TTI category for the related service after receiving the paging message sent by the mobility management entity according to the local service status, and includes related information in the paging message.
  • Step 603 The base station broadcasts a paging message including a short TTI category to the user equipment.
  • FIG. 7 is a flowchart of a subsequent communication performed by a user equipment to start a short TTI mode according to short TTI category information in a paging message according to an embodiment of the present invention. As shown in FIG. 7, the process of downlink fast start short TTI communication provided in the embodiment of the present invention is implemented as follows:
  • Step 701 The base station or the network side device broadcasts the supported short TTI category and the corresponding information, and the information may include the corresponding short TTI length, the uplink and downlink resource positions of the short TTI communication, and the corresponding random access channel.
  • Step 702 The mobility management entity or base station directly indicates a short TTI category in a paging signal addressed to the user equipment.
  • Step 703 The user equipment queries the received system message according to the short TTI category indicated in the paging signal to obtain related information for performing subsequent connection establishment, including the corresponding short TTI length, and performs uplink and downlink resources of the short TTI communication.
  • RACH random access channel
  • the method for implementing the short TTI category indication in the 3GPP paging message provided by the embodiment of the present invention is to directly add a new enumeration variable, short-TTI-Class, to the paging record of each user equipment.
  • a new enumeration variable such as a 3-bit value, it can support the indication of 8 different short TTI categories.
  • the variable may have other bit numbers to support other numbers of short TTI categories.
  • an embodiment of the present invention provides an apparatus for transmitting information of short transmission time interval communication, including:
  • the first sending module 801 is configured to: send a TTI category to the user equipment by using a paging message.
  • the first sending module 801 is configured to: send the short TTI category when detecting that downlink service data arrives.
  • the user equipment is a receiver of the downlink service data.
  • the first sending module 801 is configured to:
  • Manipula a receiving a paging message carrying a short TTI category sent by the mobility management entity MME, and forwarding the paging message to the user equipment;
  • Manner b receiving a paging message carrying a short TTI category sent by the MME, updating a short TTI category in the paging message, and sending an updated paging message to the user equipment;
  • the mode c receiving the service information of the low-latency service sent by the MME, determining the short TTI category corresponding to the low-latency service, and sending the paging message with the short TTI category to the user equipment.
  • the first sending module 801 is configured to update or determine a short TTI category according to at least one of the following information, including: the short TTI category, and the short TTI category. Access information and service status information of the base station.
  • the access information corresponding to the short TTI category includes at least one of the following:
  • a TTI length of the short TTI category an uplink resource location used for performing communication in the short TTI category, a downlink resource location used for performing communication in the short TTI category, and a paging used to transmit the short TTI category Channel information, location information of a random access channel RACH used for performing communication in the short TTI category, and random access sequence information used in the RACH.
  • the RACHs in the configuration information of different short TTI types are the same or different.
  • the access information corresponding to the short TTI category further includes:
  • the random access sequence information is a pre-designated random access sequence; and/or indication information for communicating using a non-collision random access procedure.
  • the first sending module 801 is further configured to: when the base station and the user equipment support multiple paging channels, send a paging to the user equipment on a paging channel selected by the MME or selected by the base station. a message, wherein the paging channel comprises a paging channel in a non-short TTI format and/or a paging channel in a short TTI format.
  • the device may further include:
  • the first broadcast module 802 is configured to: broadcast the access information corresponding to the short TTI category and the short TTI category to all user equipments.
  • the same broadcast message includes one or at least two short TTI categories.
  • the device may further include:
  • the change module 803 is configured to: change the access information corresponding to the short TTI category.
  • the change module 803 is configured to: change the access information corresponding to the short TTI category according to the access information corresponding to the locally supported short TTI category, and the following at least one information, including:
  • the device may further include:
  • the second broadcast module 804 is configured to: after changing the access information corresponding to the short TTI category, broadcast the short TTI category and the access information corresponding to the changed short TTI category to all user equipments.
  • the device may further include:
  • the reporting module 805 is configured to: after changing the access information corresponding to the short TTI category, when the short TTI category in the paging message is determined by the MME, if the access information corresponding to the short TTI category is changed The changed access information is reported to the MME.
  • the device may further include:
  • the second sending module 806 is configured to: send category information and capability information of the locally supported paging channel to the MME.
  • the device provided by the present invention directly indicates the short TTI category by using the paging message, so that the user equipment immediately enters the short TTI communication mode according to the short TTI category for subsequent signaling interaction, thereby greatly reducing the delay of the entire communication process, and effectively supporting Low latency business.
  • FIG. 9 is a structural diagram of an apparatus for receiving short transmission time interval communication information according to an embodiment of the present invention.
  • the device shown in Figure 9 includes:
  • the receiving module 901 is configured to: receive a paging message, where the paging message includes a short transmission Transmit time interval TTI category;
  • the communication module 902 is configured to perform short TTI communication according to a short TTI category in the paging message.
  • the communication module 902 includes:
  • the obtaining unit 9021 is configured to: obtain, according to the access information corresponding to the short TTI category broadcasted by the base station, the short TTI category corresponding access information;
  • the communication unit 9022 is configured to perform short TTI communication according to the access information.
  • the device provided by the present invention directly indicates the short TTI category by using the paging message, so that the user equipment immediately enters the short TTI communication mode according to the short TTI category for subsequent signaling interaction, thereby greatly reducing the delay of the entire communication process, and effectively supporting Low latency business.
  • 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 invention is not limited to any specific 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.
  • the device/function module/functional unit in the above embodiment When the 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 embodiment of the present invention directly indicates the short TTI category by using the paging message, so that the user equipment immediately enters the short TTI communication mode according to the short TTI category for subsequent signaling interaction, thereby greatly reducing the delay of the entire communication process, and effectively supporting the low Delay business.

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Abstract

本文公布一种发送、接收短传输时间间隔通信的信息的方法和装置。所述发送方法，包括：基站通过寻呼消息向用户设备发送短传输时间间隔TTI类别。所述接收方法包括：用户设备接收寻呼消息，其中所述寻呼消息中包括短传输时间间隔TTI类别；所述用户设备根据所述寻呼消息中的短TTI类别，进行短TTI通信。

Description

发送、接收短传输时间间隔通信的信息的方法和装置 技术领域
本申请涉及但不限于通信领域。
背景技术
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-Advanced(演进的长期演进)系统的技术标准主要在3GPP(3rd Generation Partnership Project，第三代合作伙伴计划)国际标准化组织制订。业界初步认为在3GPP R14阶段(预计于2016年)将启动面向5G的标准研究工作。
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设备容量可达每个小区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，根据实际情况，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。
发明内容
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。
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。相关技术中存在两种缩小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。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已有的LTE系统完全兼容。本申请主要讨论后面这种方法对LTE系统的需求。
当前3GPP对LTE(Long Term Evolution，长期演进)系统短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。在LTE系统中引入短TTI技术后，如何快速实现短TTI通信进行后续的连接建立和通信是亟待解决的问题。
本文提供一种发送、接收短传输时间间隔通信的信息的方法和装置，可以快速实现短TTI通信进行后续的连接建立和通信。
一种发送短传输时间间隔通信的信息的方法，包括：
基站通过寻呼消息向用户设备发送短传输时间间隔TTI类别。
可选地，所述基站是在检测到有下行的业务数据到达时发送所述短TTI类别。
可选地，所述用户设备为所述下行的业务数据的接收方。
可选地，所述基站通过寻呼消息向用户设备发送短传输时间间隔TTI类别包括：
方式a：所述基站接收移动管理实体MME发送的携带短TTI类别的寻呼消息，并向所述用户设备转发所述寻呼消息；
方式b：所述基站接收MME发送的携带短TTI类别的寻呼消息，更新所述寻呼消息中的短TTI类别，并向所述用户设备发送更新的寻呼消息；
方式c：所述基站接收MME发送的低时延业务的业务信息，确定所述低时延业务对应的短TTI类别，并向所述用户设备发送带有短TTI类别的寻呼消息。
可选地，在方式b和方式c中，所述基站是根据如下至少一个信息更新或确定短TTI类别的，包括：所述短TTI类别、所述短TTI类别对应的接入信息以及所述基站的业务状态信息。
可选地，所述短TTI类别对应的接入信息包括如下至少一个：
所述短TTI类别的TTI长度、进行所述短TTI类别的通信所使用的上行资源位置、进行所述短TTI类别的通信所使用的下行资源位置、发送所述短TTI类别所使用的寻呼信道信息、进行所述短TTI类别的通信所使用的随机接入信道RACH的位置信息、以及在所述RACH中所使用的随机接入序列信息。
可选地，不同的短TTI类型的配置信息中的RACH相同或不同。
可选地，所述短TTI类别对应的接入信息还包括：
随机接入序列信息为预先指定的随机接入序列；和/或，采用非碰撞的随机接入流程进行通信的指示信息。
可选地，所述基站通过寻呼消息向用户设备发送短TTI类别，包括：
当基站和用户设备支持多种寻呼信道时，所述基站在所述MME选择的或者所述基站选择的寻呼信道上向所述用户设备发送寻呼消息，其中所述寻呼信道包括非短TTI格式的寻呼信道和/或短TTI格式的寻呼信道。
可选地，所述方法还包括：
所述基站将所述短TTI类别以及所述短TTI类别对应的接入信息广播给所有用户设备。
可选地，所述同一广播消息中包括一个或至少两个短TTI类别。
可选地，所述方法还包括：
所述基站更改所述短TTI类别对应的接入信息。
可选地，所述基站根据本地支持的短TTI类别对应的接入信息以及如下 至少一个信息，更改所述短TTI类别对应的接入信息，包括：
所述基站的业务状态信息；
每个短TTI类别的业务负荷信息；
所述基站对每个短TTI类别的接入信息中的每项参数的支持能力信息。
可选地，所述基站更改所述短TTI类别对应的接入信息之后，所述方法还包括：
所述基站将所述短TTI类别以及更改后所述短TTI类别对应的接入信息广播给所有用户设备。
可选地，所述基站更改所述短TTI类别对应的接入信息之后，所述方法还包括：
当所述寻呼消息中的短TTI类别是由MME确定时，如果所述基站更改所述短TTI类别对应的接入信息，所述基站将更改的接入信息报告给MME。
可选地，所述方法还包括：
所述基站将本地所支持的寻呼信道的类别信息和能力信息发送给MME。
一种接收短传输时间间隔通信的信息的方法，包括：
用户设备接收寻呼消息，其中所述寻呼消息中包括短传输时间间隔TTI类别；
所述用户设备根据所述寻呼消息中的短TTI类别，进行短TTI通信。
可选地，所述用户设备根据所述寻呼消息中的短TTI类别，进行短TTI通信，包括：
所述用户设备从基站广播的短TTI类别对应的接入信息中，获取所述短TTI类别对应接入信息，并根据所述接入信息，进行短TTI通信。
一种发送短传输时间间隔通信的信息的装置，包括：
第一发送模块，设置为：通过寻呼消息向用户设备发送TTI类别。
可选地，所述第一发送模块是设置为：在检测到有下行的业务数据到达 时发送所述短TTI类别。
可选地，所述用户设备为所述下行的业务数据的接收方。
可选地，所述第一发送模块是设置为：
方式a：接收移动管理实体MME发送的携带短TTI类别的寻呼消息，并向所述用户设备转发所述寻呼消息；
方式b：接收MME发送的携带短TTI类别的寻呼消息，更新所述寻呼消息中的短TTI类别，并向所述用户设备发送更新的寻呼消息；
方式c：接收MME发送的低时延业务的业务信息，确定所述低时延业务对应的短TTI类别，并向所述用户设备发送带有短TTI类别的寻呼消息。
可选地，在方式b和方式c中，所述第一发送模块是设置为：根据如下至少一个信息更新或确定短TTI类别的，包括：所述短TTI类别、所述短TTI类别对应的接入信息以及所述基站的业务状态信息。
可选地，所述短TTI类别对应的接入信息包括如下至少一个：
所述短TTI类别的TTI长度、进行所述短TTI类别的通信所使用的上行资源位置、进行所述短TTI类别的通信所使用的下行资源位置、发送所述短TTI类别所使用的寻呼信道信息、进行所述短TTI类别的通信所使用的随机接入信道RACH的位置信息、以及在所述RACH中所使用的随机接入序列信息。
可选地，不同的短TTI类型的配置信息中的RACH相同或不同。
可选地，所述短TTI类别对应的接入信息还包括：
随机接入序列信息为预先指定的随机接入序列；和/或，采用非碰撞的随机接入流程进行通信的指示信息。
可选地，所述第一发送模块，还设置为：当基站和用户设备支持多种寻呼信道时，在所述MME选择的或者所述基站选择的寻呼信道上向所述用户设备发送寻呼消息，其中所述寻呼信道包括非短TTI格式的寻呼信道和/或短TTI格式的寻呼信道。
可选地，所述装置还包括：
第一广播模块，设置为：将所述短TTI类别以及所述短TTI类别对应的接入信息广播给所有用户设备。
可选地，所述同一广播消息中包括一个或至少两个短TTI类别。
可选地，所述装置还包括：
更改模块，设置为：更改所述短TTI类别对应的接入信息。
可选地，所述更改模块，是设置为：根据本地支持的短TTI类别对应的接入信息以及如下至少一个信息，更改所述短TTI类别对应的接入信息，包括：
所述基站的业务状态信息；
每个短TTI类别的业务负荷信息；
所述基站对每个短TTI类别的接入信息中的每项参数的支持能力信息。
可选地，所述装置还包括：
第二广播模块，设置为：在更改所述短TTI类别对应的接入信息之后，将所述短TTI类别以及更改后所述短TTI类别对应的接入信息广播给所有用户设备。
可选地，所述装置还包括：
报告模块，设置为：在更改所述短TTI类别对应的接入信息之后，当所述寻呼消息中的短TTI类别是由MME确定时，如果更改所述短TTI类别对应的接入信息，将更改的接入信息报告给MME。
可选地，所述装置还包括：
第二发送模块，设置为：将本地所支持的寻呼信道的类别信息和能力信息发送给MME。
一种接收短传输时间间隔通信的信息的装置，包括：
接收模块，设置为：接收寻呼消息，其中所述寻呼消息中包括短传输时间间隔TTI类别；
通信模块，设置为：根据所述寻呼消息中的短TTI类别，进行短TTI通信。
可选地，所述通信模块包括：
获取单元，设置为：从基站广播的短TTI类别对应的接入信息中，获取所述短TTI类别对应接入信息；
通信单元，设置为：根据所述接入信息，进行短TTI通信。
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用于执行上述任一项的方法。
本发明提供的实施例，通过寻呼消息直接指示短TTI类别，使得用户设备根据短TTI类别立即进入短TTI通信模式进行后续的信令交互，从而大大降低整个通信过程的延时，有效支持低时延业务。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图概述
图1为本发明实施例提供的发送短传输时间间隔通信的信息的方法实施例的流程图；
图2为本发明实施例提供的接收短传输时间间隔通信的信息的方法实施例的流程图；
图3为本发明实施例提供的一种LTE系统中进行多短TTI类别通信的帧结构的示意图；
图4为本发明实施例提供的一种基站在系统广播信息中进行多短TTI类别指示的通信流程图；
图5为本发明实施例提供的一种由移动管理实体决定短TTI类别的通信流程图；
图6为本发明实施例提供的一种由基站决定短TTI类别的通信流程图；
图7为本发明实施例提供的用户设备根据寻呼消息中的短TTI类别信息启动短TTI模式进行后续通信流程图；
图8为本发明实施例提供的发送短传输时间间隔通信的信息的装置的结 构图；
图9为本发明实施例提供的接收短传输时间间隔通信的信息的装置的结构图；
图10为本发明实施例的通信模块的组成示意图。
本发明的实施方式
下面将结合附图及实施例对本发明的实施方式进行描述。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。
本发明实施例提供一种发送短传输时间间隔通信的信息的方法，如图1所示，包括：
步骤101，基站通过寻呼消息向用户设备发送短传输时间间隔TTI类别。
本发明实施例提供的方法实施例，通过寻呼消息直接指示短TTI类别，使得用户设备根据短TTI类别立即进入短TTI通信模式进行后续的信令交互，从而大大降低整个通信过程的延时，有效支持低时延业务。
下面对上述方法实施例进行说明：
所述基站是在检测到有下行的业务数据到达时发送所述短TTI类别。
所述用户设备为所述下行的业务数据的接收方。
其中，所述基站在接收到下行的低时延数据时，确定该低时延数据的接收方，即上文所说的用户设备，向该用户设备指示在使用短TTI通信传输所述低时延数据时对应的短TTI类别。
所述基站将所述短TTI类别及所述短TTI类别对应的接入信息广播给所有用户设备。
通过广播短TTI类别对应的接入信息，可以方便用户设备获取所需的接入信息，实现简单方便。
所述基站通过寻呼消息向用户设备发送短传输时间间隔TTI类别包括：
方式a：所述基站接收移动管理实体MME发送的携带短TTI类别的寻呼 消息，并向所述用户设备转发所述寻呼消息；
方式b：所述基站接收MME发送的携带短TTI类别的寻呼消息，更新所述寻呼消息中的短TTI类别，并向所述用户设备发送更新的寻呼消息；
方式c：所述基站接收MME发送的低时延业务的业务信息，确定所述低时延业务对应的短TTI类别，并向所述用户设备发送带有短TTI类别的寻呼消息。
在方式b和方式c中，所述基站是根据如下至少一个信息更新或确定短TTI类别的，包括：所述短TTI类别、所述短TTI类别对应的接入信息以及所述基站的业务状态信息。
其中，所述短TTI类别对应的接入信息包括如下至少一个：
所述短TTI类别的TTI长度、进行所述短TTI类别的通信所使用的上行资源位置、进行所述短TTI类别的通信所使用的下行资源位置、发送所述短TTI类别所使用的寻呼信道信息、进行所述短TTI类别的通信所使用的随机接入信道(RACH，Random Access Channel)的位置信息、以及在所述RACH中所使用的随机接入序列信息。
其中，不同的短TTI类型的配置信息中的RACH相同或不同。
其中，所述短TTI类别对应的接入信息还包括：
随机接入序列信息为预先指定的随机接入序列；和/或，采用非碰撞的随机接入流程进行通信的指示信息。
通过使用预先制定的随机接入序列和/或指示用户设备采用非碰撞的随机接入流程，可以有效缩短用户设备部随机接入过程所需的时间，提高数据接收效率。
所述基站通过寻呼消息向用户设备发送短TTI类别，还包括：
当基站和用户设备支持多种寻呼信道时，所述基站在所述MME选择的或者所述基站选择的寻呼信道上向所述用户设备发送寻呼消息，其中所述寻呼信道包括非短TTI格式的寻呼信道和/或短TTI格式的寻呼信道。
其中，所述方法还包括：
所述基站将所述短TTI类别以及所述短TTI类别对应的接入信息广播给所有用户设备。
其中，所述同一广播消息中包括一个或至少两个短TTI类别。
可选的，所述基站更改所述短TTI类别对应的接入信息。
所述基站根据本地支持的短TTI类别对应的接入信息以及如下至少一个信息，更改所述短TTI类别对应的接入信息，包括：
所述基站的业务状态信息；
每个短TTI类别的业务负荷信息；
所述基站对每个短TTI类别的接入信息中的每项参数的支持能力信息。
举例来说，如果某个TTI类别对应的业务增多，可以增加所述TTI类别对应的无线资源；或增大RACH信道的大小，相反，如果某个TTI类别对应的业务减少，可以减少所述TTI类别对应的无线资源，或者，减少RACH信道的大小。
其中，所述基站更改所述短TTI类别对应的接入信息之后，所述方法还包括：
所述基站将所述短TTI类别以及更改后所述短TTI类别对应的接入信息广播给所有用户设备。
其中，所述基站更改所述短TTI类别对应的接入信息之后，所述方法还包括：
当所述寻呼消息中的短TTI类别是由MME确定时，如果所述基站更改所述短TTI类别对应的接入信息，所述基站将更改的接入信息报告给MME。
其中，所述基站将更改后得到的接入信息通知给MME，还包括：
所述基站将本地所支持的寻呼信道的类别信息和能力信息发送给MME。
其中，通过将本地所支持的寻呼信道的类别信息和能力信息发送给MME，方便MME选择合适的寻呼信道传输寻呼消息。
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用于执行上述发送短传输时间间隔通信的信息的方法。
图2为本发明实施例提供的接收短传输时间间隔通信的信息的方法实施例的流程图。图2所示方法包括：
步骤201、用户设备接收寻呼消息，其中所述寻呼消息中包括短传输时间间隔TTI类别；
步骤202、所述用户设备根据所述寻呼消息中的短TTI类别，进行短TTI通信。
本发明提供的实施例，通过寻呼消息直接指示短TTI类别，使得用户设备根据短TTI类别立即进入短TTI通信模式进行后续的信令交互，从而大大降低整个通信过程的延时，有效支持低时延业务。
其中，所述用户设备根据所述寻呼消息中的短TTI类别，进行短TTI通信，包括：所述用户设备从基站广播的短TTI类别对应的接入信息中，获取所述短TTI类别对应接入信息，并根据所述接入信息，进行短TTI通信。
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用于执行上述接收短传输时间间隔通信的信息的方法。
图3为本发明实施例提供的一种LTE系统中进行多短TTI类别通信的帧结构示意图。如图3所示，基站可以根据业务负荷情况或其他因素决定每个短TTI类别的配置，包括所对应的短TTI长度，进行该长度短TTI通信的上行和下行资源位置，相应随机接入信道的位置信息，以及RACH中可以使用的随机接入序列的信息等。
图4为本发明实施例提供的一种基站在系统广播信息中进行多短TTI类别指示的通信流程图。如图4所示，包括如下步骤：
步骤401，基站在决定每个短TTI类别的配置之后将短TTI类别和其相应信息，包括所对应的短TTI长度，进行该长度短TTI通信的上行和下行资 源位置，相应随机接入信道(RACH)的位置信息，以及RACH中可以使用的随机接入序列的信息等；
步骤402，基站将每个短TTI类别及相应信息在系统广播消息中发送给所有小区内的用户设备。
图5为本发明实施例提供的一种由移动管理实体决定短TTI类别的通信流程图。如图5所示，为寻呼消息决定短TTI类别的过程是这样实现的：
步骤501基站将所支持的短TTI类别及其对应的信息发送给移动管理实体；该信息可以包括所对应的短TTI长度，进行该长度短TTI通信的上行和下行资源位置，相应随机接入信道(RACH)的位置信息，以及RACH中可以使用的随机接入序列的信息等。
步骤502移动管理实体根据业务的低时延要求直接选择一个合适的短TTI类别；
步骤503移动管理实体在发往所述用户设备的寻呼信号中指示短TTI类别。
步骤504基站直接将从移动管理实体收到的寻呼消息广播给用户设备。
图6为本发明实施例提供的一种由基站决定短TTI类别的通信实施例。如图6所示，为寻呼消息决定短TTI类别的过程是这样实现的：
步骤601移动管理实体在发送寻呼消息的同时将业务的低时延级别发送给基站。可选的，移动管理实体可以将业务的低时延级别包含在发给基站的寻呼消息中；可选的，移动管理实体也可以将业务的低时延级别包含在其他消息中和寻呼消息一起发送给基站。
步骤602基站根据本地业务状态在收到移动管理实体发出的寻呼消息后为相关业务选择合适的短TTI类别，并将相关信息包含在寻呼消息中。
步骤603基站将含短TTI类别的寻呼消息广播给用户设备。
图7为本发明实施例提供的用户设备根据寻呼消息中的短TTI类别信息启动短TTI模式进行后续通信流程图。如图7所示，本发明实施例中提供的下行快速启动短TTI通信的过程是这样实现的：
步骤701基站或网络侧设备广播所支持的短TTI类别及其所对应的信息，该信息可以包括所对应的短TTI长度，进行该长度短TTI通信的上行和下行资源位置，相应随机接入信道(RACH)的位置信息，以及RACH中可以使用的随机接入序列的信息等。
步骤702移动管理实体或基站直接在发往所述用户设备的寻呼信号中指示短TTI类别。
步骤703用户设备根据寻呼信号中指示的短TTI类别，查询收到的系统消息以获得进行后续连接建立的相关信息，包括所对应的短TTI长度，进行该长度短TTI通信的上行和下行资源位置，相应随机接入信道(RACH)的位置信息，以及RACH中可以使用的随机接入序列的信息等，并利用这些信息直接启动短TTI的通信模式。后续的随机接入过程和连接建立过程可以直接通过短TTI通信模式进行交互。
另外，本发明实施例提供的在3GPP寻呼消息中进行短TTI类别指示的实现方法，以直接在每个用户设备的寻呼记录中加入一个新的列举变量，short-TTI-Class，用来指示短TTI类别。其中该变量是一个3比特的值，可以支持指示8种不同的短TTI类别。可选的，该变量也可以具有其他的比特数以支持其他数量的短TTI类别。
如图8所示，本发明实施例提供一种发送短传输时间间隔通信的信息的装置，包括：
第一发送模块801，设置为：通过寻呼消息向用户设备发送TTI类别。
其中，所述第一发送模块801是设置为：在检测到有下行的业务数据到达时发送所述短TTI类别。
其中，所述用户设备为所述下行的业务数据的接收方。
其中，所述第一发送模块801是设置为：
方式a：接收移动管理实体MME发送的携带短TTI类别的寻呼消息，并向所述用户设备转发所述寻呼消息；
方式b：接收MME发送的携带短TTI类别的寻呼消息，更新所述寻呼消息中的短TTI类别，并向所述用户设备发送更新的寻呼消息；
方式c：接收MME发送的低时延业务的业务信息，确定所述低时延业务对应的短TTI类别，并向所述用户设备发送带有短TTI类别的寻呼消息。
其中，在方式b和方式c中，所述第一发送模块801是设置为：是根据如下至少一个信息更新或确定短TTI类别的，包括：所述短TTI类别、所述短TTI类别对应的接入信息以及所述基站的业务状态信息。
其中，所述短TTI类别对应的接入信息包括如下至少一个：
所述短TTI类别的TTI长度、进行所述短TTI类别的通信所使用的上行资源位置、进行所述短TTI类别的通信所使用的下行资源位置、发送所述短TTI类别所使用的寻呼信道信息、进行所述短TTI类别的通信所使用的随机接入信道RACH的位置信息、以及在所述RACH中所使用的随机接入序列信息。
其中，不同的短TTI类型的配置信息中的RACH相同或不同。
其中，所述短TTI类别对应的接入信息还包括：
随机接入序列信息为预先指定的随机接入序列；和/或，采用非碰撞的随机接入流程进行通信的指示信息。
其中所述第一发送模块801，还设置为：当基站和用户设备支持多种寻呼信道时，在所述MME选择的或者所述基站选择的寻呼信道上向所述用户设备发送寻呼消息，其中所述寻呼信道包括非短TTI格式的寻呼信道和/或短TTI格式的寻呼信道。
其中，所述装置还可包括：
第一广播模块802，设置为：将所述短TTI类别以及所述短TTI类别对应的接入信息广播给所有用户设备。
其中，所述同一广播消息中包括一个或至少两个短TTI类别。
其中，所述装置还可包括：
更改模块803，设置为：更改所述短TTI类别对应的接入信息。
其中所述更改模块803，是设置为：根据本地支持的短TTI类别对应的接入信息以及如下至少一个信息，更改所述短TTI类别对应的接入信息，包括：
所述基站的业务状态信息；
每个短TTI类别的业务负荷信息；
所述基站对每个短TTI类别的接入信息中的每项参数的支持能力信息。
其中，所述装置还可包括：
第二广播模块804，设置为：在更改所述短TTI类别对应的接入信息之后，将所述短TTI类别以及更改后所述短TTI类别对应的接入信息广播给所有用户设备。
其中，所述装置还可包括：
报告模块805，设置为：在更改所述短TTI类别对应的接入信息之后，当所述寻呼消息中的短TTI类别是由MME确定时，如果更改所述短TTI类别对应的接入信息，将更改的接入信息报告给MME。
其中，所述装置还可包括：
第二发送模块806，设置为：将本地所支持的寻呼信道的类别信息和能力信息发送给MME。
本发明提供的装置实施例，通过寻呼消息直接指示短TTI类别，使得用户设备根据短TTI类别立即进入短TTI通信模式进行后续的信令交互，从而大大降低整个通信过程的延时，有效支持低时延业务。
图9为本发明实施例提供的接收短传输时间间隔通信的信息的装置的结构图。图9所示装置包括：
接收模块901，设置为：接收寻呼消息，其中所述寻呼消息中包括短传 输时间间隔TTI类别；
通信模块902，设置为：根据所述寻呼消息中的短TTI类别，进行短TTI通信。
如图10所示，其中，所述通信模块902包括：
获取单元9021，设置为：从基站广播的短TTI类别对应的接入信息中，获取所述短TTI类别对应接入信息；
通信单元9022，设置为：根据所述接入信息，进行短TTI通信。
本发明提供的装置实施例，通过寻呼消息直接指示短TTI类别，使得用户设备根据短TTI类别立即进入短TTI通信模式进行后续的信令交互，从而大大降低整个通信过程的延时，有效支持低时延业务。
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。
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，本发明不限制于任何特定的硬件和软件结合。
上述实施例中的装置/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。
上述实施例中的装置/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。
以上所述，仅为本发明的实施方式，但本发明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发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范 围应以权利要求所述的保护范围为准。
工业实用性
本发明提供的实施例，通过寻呼消息直接指示短TTI类别，使得用户设备根据短TTI类别立即进入短TTI通信模式进行后续的信令交互，从而大大降低整个通信过程的延时，有效支持低时延业务。

Claims (20)

  1. 一种发送短传输时间间隔通信的信息的方法，包括：
    基站通过寻呼消息向用户设备发送短传输时间间隔TTI类别。
  2. 根据权利要求1所述的方法，其中，所述基站是在检测到有下行的业务数据到达时发送所述短TTI类别。
  3. 根据权利要求2所述的方法，其中，所述用户设备为所述下行的业务数据的接收方。
  4. 根据权利要求1所述的方法，其中，所述基站通过寻呼消息向用户设备发送短传输时间间隔TTI类别包括：
    方式a：所述基站接收移动管理实体MME发送的携带短TTI类别的寻呼消息，并向所述用户设备转发所述寻呼消息；
    方式b：所述基站接收MME发送的携带短TTI类别的寻呼消息，更新所述寻呼消息中的短TTI类别，并向所述用户设备发送更新的寻呼消息；
    方式c：所述基站接收MME发送的低时延业务的业务信息，确定所述低时延业务对应的短TTI类别，并向所述用户设备发送带有短TTI类别的寻呼消息。
  5. 根据权利要求4所述的方法，其中，在方式b和方式c中，所述基站是根据如下至少一个信息更新或确定短TTI类别的，包括：所述短TTI类别、所述短TTI类别对应的接入信息以及所述基站的业务状态信息。
  6. 根据权利要求5所述的方法，其中，所述短TTI类别对应的接入信息包括如下至少一个：
    所述短TTI类别的TTI长度、进行所述短TTI类别的通信所使用的上行资源位置、进行所述短TTI类别的通信所使用的下行资源位置、发送所述短TTI类别所使用的寻呼信道信息、进行所述短TTI类别的通信所使用的随机接入信道RACH的位置信息、以及在所述RACH中所使用的随机接入序列信息。
  7. 根据权利要求6所述的方法，其中，不同的短TTI类型的配置信息中的RACH相同或不同。
  8. 根据权利要求6所述的方法，其特性在于，所述短TTI类别对应的接入信息还包括：
    随机接入序列信息为预先指定的随机接入序列；和/或，采用非碰撞的随机接入流程进行通信的指示信息。
  9. 根据权利要求1所述的方法，其中，所述基站通过寻呼消息向用户设备发送短TTI类别，包括：
    当基站和用户设备支持多种寻呼信道时，所述基站在所述MME选择的或者所述基站选择的寻呼信道上向所述用户设备发送寻呼消息，其中所述寻呼信道包括非短TTI格式的寻呼信道和/或短TTI格式的寻呼信道。
  10. 根据权利要求9所述的方法，所述方法还包括：
    所述基站将所述短TTI类别以及所述短TTI类别对应的接入信息广播给所有用户设备。
  11. 根据权利要求10所述的方法，所述同一广播消息中包括一个或至少两个短TTI类别。
  12. 根据权利要求7所述的方法，所述方法还包括：
    所述基站更改所述短TTI类别对应的接入信息。
  13. 根据权利要求12所述的方法，其中，所述基站根据本地支持的短TTI类别对应的接入信息以及如下至少一个信息，更改所述短TTI类别对应的接入信息，包括：
    所述基站的业务状态信息；
    每个短TTI类别的业务负荷信息；
    所述基站对每个短TTI类别的接入信息中的每项参数的支持能力信息。
  14. 根据权利要求12所述的方法，其中，所述基站更改所述短TTI类别 对应的接入信息之后，所述方法还包括：
    所述基站将所述短TTI类别以及更改后所述短TTI类别对应的接入信息广播给所有用户设备。
  15. 根据权利要求12所述的方法，其中，所述基站更改所述短TTI类别对应的接入信息之后，所述方法还包括：
    当所述寻呼消息中的短TTI类别是由MME确定时，如果所述基站更改所述短TTI类别对应的接入信息，所述基站将更改的接入信息报告给MME。
  16. 根据权利要求15所述的方法，所述方法还包括：
    所述基站将本地所支持的寻呼信道的类别信息和能力信息发送给MME。
  17. 一种接收短传输时间间隔通信的信息的方法，包括：
    用户设备接收寻呼消息，其中所述寻呼消息中包括短传输时间间隔TTI类别；
    所述用户设备根据所述寻呼消息中的短TTI类别，进行短TTI通信。
  18. 根据权利要求17所述的方法，其中，所述用户设备根据所述寻呼消息中的短TTI类别，进行短TTI通信，包括：
    所述用户设备从基站广播的短TTI类别对应的接入信息中，获取所述短TTI类别对应接入信息，并根据所述接入信息，进行短TTI通信。
  19. 一种发送短传输时间间隔通信的信息的装置，包括：
    第一发送模块，设置为：通过寻呼消息向用户设备发送TTI类别。
  20. 一种接收短传输时间间隔通信的信息的装置，包括：
    接收模块，设置为：接收寻呼消息，其中所述寻呼消息中包括短传输时间间隔TTI类别；
    通信模块，设置为：根据所述寻呼消息中的短TTI类别，进行短TTI通信。
PCT/CN2016/077540 2015-09-15 2016-03-28 发送、接收短传输时间间隔通信的信息的方法和装置 WO2016177178A1 (zh)

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