CN106535352B - Method and device for sending and receiving short transmission time interval communication information - Google Patents

Method and device for sending and receiving short transmission time interval communication information Download PDF

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Publication number
CN106535352B
CN106535352B CN201510585890.1A CN201510585890A CN106535352B CN 106535352 B CN106535352 B CN 106535352B CN 201510585890 A CN201510585890 A CN 201510585890A CN 106535352 B CN106535352 B CN 106535352B
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short tti
base station
category
paging message
user equipment
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CN106535352A (en
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邹伟
戴博
戴谦
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ZTE Corp
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ZTE Corp
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Priority to PCT/CN2016/077540 priority patent/WO2016177178A1/en
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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
    • H04W74/002—Transmission of channel access control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment
    • H04W74/085—Random access procedures, e.g. with 4-step access with collision treatment collision avoidance

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

Abstract

The invention provides a method and a device for sending and receiving short transmission time interval communication information. The sending method comprises the following steps: the base station sends the short transmission time interval TTI category to the user equipment through a paging message. The receiving method comprises the following steps: the method comprises the steps that user equipment receives a paging message, wherein the paging message comprises a short Transmission Time Interval (TTI) category; and the user equipment carries out short TTI communication according to the short TTI category in the paging message.

Description

Method and device for sending and receiving short transmission time interval communication information
Technical Field
The present invention relates to the field of communications, and in particular, to a method and an apparatus for transmitting and receiving short transmission time interval communication information.
Background
The rapid development of mobile internet, internet of things, and other business applications has become a major driving force for the development of the fifth Generation mobile communication technology (5G, 5th Generation). They have an urgent need for 5G with access rates comparable to that of optical fibers, connectivity capabilities of billions of devices, a perfect real-time experience, and wireless broadband access capabilities anywhere and anytime. In addition, important indexes such as energy consumption efficiency, spectral efficiency and peak rate also need to be comprehensively considered in the design of the 5G system. China established the IMT-2020 push group in 2013 to drive the development of 5G technology. It is expected that a 5G vision, critical capacity requirements and spectrum planning will develop in 2015, according to the international global situation, after which 5G standardization work will be initiated and start to be commercially available after 2020. In terms of international standards, technical standards of the LTE-Advanced (evolved long term evolution) system are mainly set by the 3GPP international organization for standardization. The industry has preliminarily held that 5G-oriented standard research work will be initiated at stage 3GPP R14 (expected in 2016).
In future mobile networks, the traffic demand will increase continuously, and the number and types of terminals will increase explosively. As one of the important scenarios and technical means of 5G, Machine Type Communication (MTC) is receiving increasing attention. In general, there are four main requirements for machine-to-machine communication: huge number of connections, low energy consumption, low time delay, and high reliability. In terms of the number of connections, the capacity of user equipment required to be supported by a future 5G system can reach 30-300 ten thousand user equipment in each cell, and can cover 99.99% of the area; in the aspect of energy consumption, the battery service time of the user equipment needs to be prolonged by 10 times in the 5G system compared with the current service time, and the service time is 5-10 years; in terms of delay, a 5G system needs to reduce the end-to-end delay by 5 times, which can be as small as 5ms, wherein the air interface delay can be as small as 1 ms; in terms of reliability, the reliability requirement of security-related messages is as high as 99.999%. In practical application, different applications may have different combinations of requirements according to specific situations, and the combinations may be one of the above four requirements, or different combinations of the above four requirements, or even all four requirements.
The short Transmission Time Interval access technology is to reduce the Transmission Time Interval (TTI) of the LTE system, and sufficiently shorten the processing delay and the backhaul delay to support the ultra-low delay requirement of some services. There are two methods to reduce the TTI at present, one is to reduce the duration of a single OFDM symbol by enlarging the subcarrier spacing of an Orthogonal Frequency Division Multiplexing (OFDM) system. Another approach is to reduce the TTI length by reducing the number of OFDM symbols in a single TTI, as currently discussed by 3 GPP; the method has the advantage of being completely compatible with the existing LTE system. This patent mainly discusses the need for LTE systems for this latter approach.
The current discussion of the 3GPP on the short TTI access of the LTE (Long Term Evolution) system still stays in the initial technical evaluation phase, i.e. the final effect of the short TTI on the delay reduction is analyzed and evaluated. After the short TTI technology is introduced into the existing LTE system, how to quickly implement the short TTI communication for subsequent connection establishment and communication is an urgent problem to be solved.
Disclosure of Invention
The invention provides a method and a device for sending and receiving information of short transmission time interval communication, aiming at solving the technical problem of how to quickly realize the subsequent connection establishment and communication of short TTI communication.
In order to solve the technical problems, the invention provides the following technical scheme:
a method of transmitting information for short transmission time interval communications, comprising:
the base station sends the short transmission time interval TTI category to the user equipment through a paging message.
And the base station transmits the short TTI category when detecting that downlink service data arrives.
Wherein the user equipment is a receiver of the downlink service data.
Wherein the base station sending the short Transmission Time Interval (TTI) category to the user equipment through the paging message comprises:
the method a: the base station receives a paging message which is sent by a Mobile 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 which is sent by an MME and carries a short TTI category, updates the short TTI category in the paging message and sends the updated paging message to the user equipment;
mode c: the base station receives service information of a low-delay service sent by an MME, determines a short TTI category corresponding to the low-delay service, and sends a paging message with the short TTI category to the user equipment.
In the mode b and the mode c, the updating or determining, by the base station, the short TTI category according to at least one of the following information includes: the short TTI category, access information corresponding to the short TTI category, and service status information of the base station.
Wherein the access information corresponding to the short TTI category comprises at least one of the following:
a TTI length of the short TTI type, an uplink resource location used for performing the communication of the short TTI type, a downlink resource location used for performing the communication of the short TTI type, paging channel information used for transmitting the short TTI type, location information of a Random Access Channel (RACH) used for performing the communication of the short TTI type, and random access sequence information used in the RACH.
Wherein, RACHs in the configuration information of different short TTI types are the same or different.
Wherein, the access information corresponding to the short TTI category further includes:
the random access sequence information is a random access sequence appointed in advance; and/or indication information communicated by adopting a non-collision random access flow.
Wherein, the base station sends the short TTI category to the user equipment through the paging message, further comprising:
when a base station and user equipment support multiple paging channels, the base station sends a paging message to the user equipment on the paging channel selected by the MME or the paging channel selected by the base station, wherein the paging channel comprises a paging channel in a non-short TTI format and/or a paging channel in a short TTI format.
Wherein the method further comprises:
and the base station broadcasts the short TTI type and the access information corresponding to the short TTI type to all user equipment.
Wherein the same broadcast message includes one or at least two short TTI categories.
Wherein the method further comprises:
and 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 locally supported short TTI category and at least one of the following information, including:
service state information of the base station;
service load information of each short TTI category;
and the base station supports the capability information of each parameter in the access information of each short TTI category.
Wherein, after the base station changes the access information corresponding to the short TTI category, the method further includes:
and the base station broadcasts the short TTI type and the access information corresponding to the changed short TTI type to all user equipment.
Wherein, after the base station changes the access information corresponding to the short TTI category, the method further includes:
when the short TTI category in the paging message is determined by MME, if the base station changes the access information corresponding to the short TTI category, the base station reports the changed access information to MME.
Wherein, the base station notifies the access information obtained after the change to the MME, and further comprises:
and the base station sends the category information and the capability information of the paging channel supported locally to the MME.
A method of receiving information communicated in short transmission time intervals, comprising:
the method comprises the steps that user equipment receives a paging message, wherein the paging message comprises a short Transmission Time Interval (TTI) category;
and the user equipment carries out short TTI communication according to the short TTI category in the paging message.
Wherein, the user equipment performs short TTI communication according to the short TTI category in the paging message, including:
and the user equipment acquires the access information corresponding to the short TTI category from the access information corresponding to the short TTI category broadcasted by the base station, and carries out short TTI communication according to the access information.
An apparatus for transmitting information for short transmission time interval communications, comprising:
a first sending module, configured to send the TTI category to the user equipment through a paging message.
The first sending module sends the short TTI category when detecting that downlink service data arrives.
Wherein the user equipment is a receiver of the downlink service data.
Wherein the first sending module is specifically configured to:
the method a: the base station receives a paging message which is sent by a Mobile 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 which is sent by an MME and carries a short TTI category, updates the short TTI category in the paging message and sends the updated paging message to the user equipment;
mode c: the base station receives service information of a low-delay service sent by an MME, determines a short TTI category corresponding to the low-delay service, and sends a paging message with the short TTI category to the user equipment.
In the mode b and the mode c, the updating or determining, by the base station, the short TTI category according to at least one of the following information includes: the short TTI category, access information corresponding to the short TTI category, and service status information of the base station.
Wherein the access information corresponding to the short TTI category comprises at least one of the following:
a TTI length of the short TTI type, an uplink resource location used for performing the communication of the short TTI type, a downlink resource location used for performing the communication of the short TTI type, paging channel information used for transmitting the short TTI type, location information of a Random Access Channel (RACH) used for performing the communication of the short TTI type, and random access sequence information used in the RACH.
Wherein, RACHs in the configuration information of different short TTI types are the same or different.
Wherein, the access information corresponding to the short TTI category further includes:
the random access sequence information is a random access sequence appointed in advance; and/or indication information communicated by adopting a non-collision random access flow.
The first sending module is further configured to, when a base station and a user equipment support multiple paging channels, send, by the base station, 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 paging channel in a non-short TTI format and/or a paging channel in a short TTI format.
Wherein the apparatus further comprises:
and the first broadcasting module is used for broadcasting the short TTI type and the access information corresponding to the short TTI type to all the user equipment.
Wherein the same broadcast message includes one or at least two short TTI categories.
Wherein the apparatus further comprises:
and a changing module for changing the access information corresponding to the short TTI category.
The changing module is specifically 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 at least one of the following information, and includes:
service state information of the base station;
service load information of each short TTI category;
and the base station supports the capability information of each parameter in the access information of each short TTI category.
Wherein the apparatus further comprises:
and the second broadcasting module is used for broadcasting the short TTI category and the access information corresponding to the changed short TTI category to all the user equipment after changing the access information corresponding to the short TTI category.
Wherein the apparatus further comprises:
and a reporting module, configured to report, after changing the access information corresponding to the short TTI category, the changed access information to an MME if the access information corresponding to the short TTI category is changed when the short TTI category in the paging message is determined by the MME.
Wherein the apparatus further comprises:
and a second sending module, configured to send the category information and the capability information of the paging channel supported locally to the MME.
An apparatus for receiving information communicated in short transmission time intervals, comprising:
a receiving module, configured to receive a paging message, where the paging message includes a short Transmission Time Interval (TTI) category;
and the communication module is used for carrying out short TTI communication according to the short TTI category in the paging message.
Wherein the communication module comprises:
an obtaining unit, configured to obtain access information corresponding to a short TTI type from access information corresponding to the short TTI type broadcast by a base station;
and the communication unit is used for carrying out short TTI communication according to the access information.
The embodiment provided by the invention directly indicates the short TTI category through the paging message, so that the user equipment immediately enters the short TTI communication mode to perform subsequent signaling interaction according to the short TTI category, thereby greatly reducing the time delay of the whole communication process and effectively supporting the low-time-delay service.
Drawings
FIG. 1 is a flow chart of an embodiment of a method for receiving short transmission time interval (TTF) communicated information provided by the present invention;
fig. 2 is a schematic diagram of a frame structure for performing multi-short TTI type communication in an LTE system according to the present invention;
FIG. 3 is a communication flow diagram illustrating how a base station performs category indication of multiple short TTIs in system broadcast information according to the present invention;
FIG. 4 is a communication flow diagram for determining a short TTI category by the MME according to the present invention;
FIG. 5 is a communication flow diagram for determining a short TTI category by a base station in accordance with the present invention;
FIG. 6 is a flowchart illustrating a UE initiating a short TTI mode for subsequent communications according to the short TTI category information in the paging message;
fig. 7 is a block diagram of an apparatus for receiving short tti communication information according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The invention provides a method for sending short transmission time interval communication information, which comprises the following steps:
the base station sends the short transmission time interval TTI category to the user equipment through a paging message.
The method provided by the embodiment of the invention directly indicates the short TTI category through the paging message, so that the user equipment immediately enters the short TTI communication mode to perform subsequent signaling interaction according to the short TTI category, thereby greatly reducing the time delay of the whole communication process and effectively supporting the low-delay service.
The following illustrates the above method embodiment:
and the base station transmits the short TTI category when detecting that downlink service data arrives.
The user equipment is a receiver of the downlink service data.
When receiving downlink low-delay data, the base station determines a receiver of the low-delay data, that is, the user equipment, and indicates a short TTI type corresponding to the low-delay data transmitted by using short TTI communication to the user equipment.
And the base station broadcasts the short TTI type and the access information corresponding to the short TTI type to all user equipment.
By broadcasting the access information corresponding to the short TTI category, the user equipment can conveniently acquire the required access information, and the realization is simple and convenient.
The base station sending the short transmission time interval TTI category to the user equipment through the paging message comprises:
the method a: the base station receives a paging message which is sent by a Mobile 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 which is sent by an MME and carries a short TTI category, updates the short TTI category in the paging message and sends the updated paging message to the user equipment;
mode c: the base station receives service information of a low-delay service sent by an MME, determines a short TTI category corresponding to the low-delay service, and sends a paging message with the short TTI category to the user equipment.
In the mode b and the mode c, the base station updates or determines the short TTI category according to at least one of the following information, including: the short TTI category, access information corresponding to the short TTI category, and service status information of the base station.
Wherein the access information corresponding to the short TTI category comprises at least one of the following:
the access information corresponding to the short TTI category comprises at least one of the following:
a TTI length of the short TTI type, an uplink resource location used for performing communication of the short TTI type, a downlink resource location used for performing communication of the short TTI type, paging Channel information used for transmitting the short TTI type, location information of a Random Access Channel (RACH) used for performing communication of the short TTI type, and Random Access sequence information used in the RACH.
Wherein, RACHs in the configuration information of different short TTI types are the same or different.
Wherein, the access information corresponding to the short TTI category further includes:
the random access sequence information is a random access sequence appointed in advance; and/or indication information communicated by adopting a non-collision random access flow.
By using a random access sequence which is preset and/or indicating the user equipment to adopt a non-collision random access flow, the time required by the random access process of the user equipment part can be effectively shortened, and the data receiving efficiency is improved.
The base station sends the short TTI category to the user equipment through the paging message, and the method further comprises the following steps:
when a base station and user equipment support multiple paging channels, the base station sends a paging message to the user equipment on the paging channel selected by the MME or the paging channel selected by the base station, wherein the paging channel comprises a paging channel in a non-short TTI format and/or a paging channel in a short TTI format.
Wherein the method further comprises:
and the base station broadcasts the short TTI type and the access information corresponding to the short TTI type to all user equipment.
Wherein the same broadcast message includes one or at least two short TTI categories.
Optionally, the base station changes 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 locally supported short TTI category and at least one of the following information, and the method comprises the following steps:
service state information of the base station;
service load information of each short TTI category;
and the base station supports the capability information of each parameter in the access information of each short TTI category.
For example, if the number of services corresponding to a certain TTI category increases, the radio resources corresponding to the TTI category may be increased; or increase the size of the RACH channel, on the contrary, if the traffic corresponding to a certain TTI category decreases, the radio resource corresponding to the TTI category may be decreased, or the size of the RACH channel may be decreased.
Wherein, after the base station changes the access information corresponding to the short TTI category, the method further includes:
and the base station broadcasts the short TTI type and the access information corresponding to the changed short TTI type to all user equipment.
Wherein, after the base station changes the access information corresponding to the short TTI category, the method further includes:
when the short TTI category in the paging message is determined by MME, if the base station changes the access information corresponding to the short TTI category, the base station reports the changed access information to MME.
Wherein, the base station notifies the access information obtained after the change to the MME, and further comprises:
and the base station sends the category information and the capability information of the paging channel supported locally to the MME.
The paging message is conveniently transmitted by the MME through sending the category information and the capability information of the paging channel supported locally to the MME.
Fig. 1 is a flowchart of an embodiment of a method for receiving short tti communication information according to the present invention. The method shown in fig. 1 comprises:
step 101, a user equipment receives a paging message, wherein the paging message comprises a short Transmission Time Interval (TTI) category;
and 102, the user equipment carries out short TTI communication according to the short TTI category in the paging message.
The embodiment provided by the invention directly indicates the short TTI category through the paging message, so that the user equipment immediately enters the short TTI communication mode to perform subsequent signaling interaction according to the short TTI category, thereby greatly reducing the time delay of the whole communication process and effectively supporting the low-time-delay service.
Wherein, the user equipment performs short TTI communication according to the short TTI category in the paging message, including: and the user equipment acquires the access information corresponding to the short TTI category from the access information corresponding to the short TTI category broadcasted by the base station, and carries out short TTI communication according to the access information.
Fig. 2 is a schematic diagram of a frame structure for performing multi-short TTI type communication in an LTE system according to the present invention. As shown in fig. 2, 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, the uplink and downlink resource positions for performing short TTI communication of the length, the position information of the corresponding random access channel, and the information of the random access sequence that can be used in the RACH.
Fig. 3 is a communication flow diagram of a base station performing multiple short TTI category indication in system broadcast information according to the present invention. As shown in fig. 3, after determining the configuration of each short TTI category, the base station sends the short TTI category and its corresponding information, including the corresponding short TTI length, the uplink and downlink resource locations for performing short TTI communication of the length, the location information of the corresponding Random Access Channel (RACH), and the information of the random access sequence that can be used in the RACH, to the user equipments in all cells in a system broadcast message.
Fig. 4 is a communication flow diagram for determining the short TTI type by the mobility management entity according to the present invention. As shown in fig. 4, the procedure for deciding the short TTI category for the paging message is implemented as follows:
step 1, the base station sends the supported short TTI types and various information corresponding to the short TTI types to a mobile management entity; the information may include the corresponding short TTI length, the uplink and downlink resource locations for short TTI communication of that length, the location information of the corresponding Random Access Channel (RACH), and the information of the random access sequences that may be used in the RACH, etc.
Step 2, the mobile management entity directly selects a proper short TTI category according to the low time delay requirement of the service, and indicates the short TTI category in the paging signal sent to the user equipment.
And 3, the base station directly broadcasts the paging message received from the mobile management entity to the user equipment.
FIG. 5 is a communication embodiment of a base station determining a short TTI category in accordance with the present invention. As shown in fig. 6, the procedure for deciding the short TTI category for the paging message is implemented as follows:
step 1, the mobile management entity sends the paging message and simultaneously sends the low delay level of the service to the base station. Optionally, 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 to be sent to the base station along with the paging message.
And 2, the base station selects a proper short TTI category for the related service after receiving the paging message sent by the mobile management entity according to the local service state, and the related information is contained in the paging message.
And 3, the base station broadcasts the paging message containing the short TTI category to the user equipment.
Fig. 6 is a flowchart illustrating the ue starting the short TTI mode for subsequent communication according to the short TTI category information in the paging message according to the present invention. As shown in fig. 6, the process of downlink fast start short TTI communication provided in the present invention is implemented as follows:
step 1, the base station or the network side device broadcasts the supported short TTI categories and various information corresponding to the short TTI categories, where the information may include the corresponding short TTI length, the uplink and downlink resource positions for performing short TTI communication of the length, the position information of a corresponding Random Access Channel (RACH), and the information of a random access sequence that can be used in the RACH.
Step 2, the mobile management entity or the base station directly indicates the short TTI category in the paging signal sent to the user equipment.
And 3, the user equipment inquires the received system message according to the short TTI type indicated in the paging signal to obtain the relevant information for establishing the subsequent connection, wherein the relevant information comprises the corresponding short TTI length, the uplink and downlink resource positions for carrying out the short TTI communication with the length, the position information of a corresponding Random Access Channel (RACH), the information of a random access sequence which can be used in the RACH and the like, and the communication mode of the short TTI is directly started by utilizing the information. Subsequent random access procedures and connection establishment procedures may interact directly through the short TTI communication mode.
In addition, the implementation method for indicating the short TTI category in the 3GPP paging message provided by the invention is used for directly adding a new enumeration variable, short-TTI-Class, in the paging record of each user equipment to indicate the short TTI category. Where the variable is a 3-bit value, it can support indications of 8 different short TTI classes. Alternatively, the variable may have other number of bits to support other number of short TTI categories.
The invention provides a device for sending short transmission time interval communication information, which comprises:
a first sending module, configured to send the TTI category to the user equipment through a paging message.
The first sending module sends the short TTI category when detecting that downlink service data arrives.
Wherein the user equipment is a receiver of the downlink service data.
Wherein the first sending module is specifically configured to:
the method a: the base station receives a paging message which is sent by a Mobile 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 which is sent by an MME and carries a short TTI category, updates the short TTI category in the paging message and sends the updated paging message to the user equipment;
mode c: the base station receives service information of a low-delay service sent by an MME, determines a short TTI category corresponding to the low-delay service, and sends a paging message with the short TTI category to the user equipment.
In the mode b and the mode c, the updating or determining, by the base station, the short TTI category according to at least one of the following information includes: the short TTI category, access information corresponding to the short TTI category, and service status information of the base station.
Wherein the access information corresponding to the short TTI category comprises at least one of the following:
a TTI length of the short TTI type, an uplink resource location used for performing the communication of the short TTI type, a downlink resource location used for performing the communication of the short TTI type, paging channel information used for transmitting the short TTI type, location information of a Random Access Channel (RACH) used for performing the communication of the short TTI type, and random access sequence information used in the RACH.
Wherein, RACHs in the configuration information of different short TTI types are the same or different.
Wherein, the access information corresponding to the short TTI category further includes:
the random access sequence information is a random access sequence appointed in advance; and/or indication information communicated by adopting a non-collision random access flow.
The first sending module is further configured to, when a base station and a user equipment support multiple paging channels, send, by the base station, 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 paging channel in a non-short TTI format and/or a paging channel in a short TTI format.
Wherein the apparatus further comprises:
and the first broadcasting module is used for broadcasting the short TTI type and the access information corresponding to the short TTI type to all the user equipment.
Wherein the same broadcast message includes one or at least two short TTI categories.
Wherein the apparatus further comprises:
and a changing module for changing the access information corresponding to the short TTI category.
The changing module is specifically 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 at least one of the following information, and includes:
service state information of the base station;
service load information of each short TTI category;
and the base station supports the capability information of each parameter in the access information of each short TTI category.
Wherein the apparatus further comprises:
and the second broadcasting module is used for broadcasting the short TTI category and the access information corresponding to the changed short TTI category to all the user equipment after changing the access information corresponding to the short TTI category.
Wherein the apparatus further comprises:
and a reporting module, configured to report, after changing the access information corresponding to the short TTI category, the changed access information to an MME if the access information corresponding to the short TTI category is changed when the short TTI category in the paging message is determined by the MME.
Wherein the apparatus further comprises:
and a second sending module, configured to send the category information and the capability information of the paging channel supported locally to the MME.
The device provided by the embodiment of the invention directly indicates the short TTI category through the paging message, so that the user equipment immediately enters the short TTI communication mode to perform subsequent signaling interaction according to the short TTI category, thereby greatly reducing the time delay of the whole communication process and effectively supporting the low-delay service.
Fig. 7 is a block diagram of an apparatus for receiving short tti communication information according to the present invention. The apparatus shown in fig. 7 comprises:
a receiving module 701, configured to receive a paging message, where the paging message includes a short transmission time interval TTI category;
a communication module 702, configured to perform short TTI communication according to the short TTI category in the paging message.
Wherein the communication module 702 comprises:
an obtaining unit, configured to obtain access information corresponding to a short TTI type from access information corresponding to the short TTI type broadcast by a base station;
and the communication unit is used for carrying out short TTI communication according to the access information.
The device provided by the embodiment of the invention directly indicates the short TTI category through the paging message, so that the user equipment immediately enters the short TTI communication mode to perform subsequent signaling interaction according to the short TTI category, thereby greatly reducing the time delay of the whole communication process and effectively supporting the low-delay service.
It will be understood by those of ordinary skill in the art that all or part of the steps of the above embodiments may be implemented using a computer program flow, which may be stored in a computer readable storage medium and executed on a corresponding hardware platform (e.g., system, apparatus, device, etc.), and when executed, includes one or a combination of the steps of the method embodiments.
Alternatively, all or part of the steps of the above embodiments may be implemented by using an integrated circuit, and the steps may be respectively manufactured as an integrated circuit module, or a plurality of the blocks or steps may be manufactured as a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The devices/functional modules/functional units in the above embodiments may be implemented by general-purpose computing devices, and they may be centralized on a single computing device or distributed on a network formed by a plurality of computing devices.
Each device/function module/function unit in the above embodiments may be implemented in the form of a software function module and may be stored in a computer-readable storage medium when being sold or used as a separate product. The computer readable storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (30)

1. A method for transmitting information for short transmission time interval communications, comprising:
a base station sends a short Transmission Time Interval (TTI) category to user equipment through a paging message, wherein the base station sends the short TTI category when detecting that downlink service data arrives;
the base station sending the short transmission time interval TTI category to the user equipment through the paging message comprises:
mode b: the base station receives a paging message which is sent by an MME and carries a short TTI category, updates the short TTI category in the paging message and sends the updated paging message to the user equipment;
mode c: the base station receives service information of a low-delay service sent by an MME, determines a short TTI category corresponding to the low-delay service, and sends a paging message with the short TTI category to the user equipment.
2. The method of claim 1, wherein the user equipment is a receiver of the downlink traffic data.
3. The method of claim 1, wherein in the modes b and c, the base station updates or determines the short TTI category according to at least one of the following information, comprising: the short TTI category, access information corresponding to the short TTI category, and service status information of the base station.
4. The method of claim 3, wherein the access information corresponding to the short TTI category comprises at least one of:
a TTI length of the short TTI type, an uplink resource location used for performing the communication of the short TTI type, a downlink resource location used for performing the communication of the short TTI type, paging channel information used for transmitting the short TTI type, location information of a Random Access Channel (RACH) used for performing the communication of the short TTI type, and random access sequence information used in the RACH.
5. The method of claim 4, wherein RACHs in the configuration information of different short TTI types are the same or different.
6. The method of claim 4, wherein the access information corresponding to the short TTI category further comprises:
the random access sequence information is a random access sequence appointed in advance; and/or indication information communicated by adopting a non-collision random access flow.
7. The method of claim 1, wherein the base station sends the short TTI class to the user equipment via a paging message, further comprising:
when a base station and user equipment support multiple paging channels, the base station sends a paging message to the user equipment on a paging channel selected by an MME or selected by the base station, wherein the paging channel comprises a paging channel in a non-short TTI format and/or a paging channel in a short TTI format.
8. The method of claim 7, further comprising:
and the base station broadcasts the short TTI type and the access information corresponding to the short TTI type to all user equipment.
9. The method of claim 8, wherein one or at least two short TTI categories are included in the same broadcast message.
10. The method of claim 5, further comprising:
and the base station changes the access information corresponding to the short TTI category.
11. The method of claim 10, wherein the base station changes the access information corresponding to the short TTI category according to the access information corresponding to the locally supported short TTI category and at least one of the following information, comprising:
service state information of the base station;
service load information of each short TTI category;
and the base station supports the capability information of each parameter in the access information of each short TTI category.
12. The method of claim 10, wherein after the base station changes the access information corresponding to the short TTI category, the method further comprises:
and the base station broadcasts the short TTI type and the access information corresponding to the changed short TTI type to all user equipment.
13. The method of claim 10, wherein after the base station changes the access information corresponding to the short TTI category, the method further comprises:
when the short TTI category in the paging message is determined by MME, if the base station changes the access information corresponding to the short TTI category, the base station reports the changed access information to MME.
14. The method of claim 13, wherein the base station notifies an MME of the modified access information, further comprising:
and the base station sends the category information and the capability information of the paging channel supported locally to the MME.
15. A method of receiving information communicated in short transmission time intervals, comprising:
the method comprises the steps that user equipment receives a paging message, wherein the paging message comprises a short Transmission Time Interval (TTI) category;
the user equipment carries out short TTI communication according to the short TTI category in the paging message;
the user equipment performs short TTI communication according to the short TTI category in the paging message, and the communication method comprises the following steps:
the user equipment acquires access information corresponding to the short TTI category from access information corresponding to the short TTI category broadcasted by a base station, and carries out short TTI communication according to the access information;
the paging message received by the user equipment is an updated paging message which is sent to the user equipment after the base station receives the paging message which is sent by MME and carries the short TTI category and updates the short TTI category in the paging message; or the paging message received by the user equipment is a paging message with a short TTI category, which is sent to the user equipment after the base station receives the service information of the low-delay service sent by the MME and determines the short TTI category corresponding to the low-delay service.
16. A base station, comprising:
a first sending module, configured to send a short transmission time interval TTI category to a user equipment through a paging message, where the first sending module sends the short TTI category when it is detected that downlink service data arrives;
the first sending module is specifically configured to:
mode b: a base station receives a paging message which is sent by an MME and carries a short TTI category, updates the short TTI category in the paging message and sends the updated paging message to the user equipment;
mode c: and the base station receives the service information of the low-delay service sent by the MME, determines the short TTI category corresponding to the low-delay service, and sends the paging message with the short TTI category to the user equipment.
17. The base station of claim 16, wherein the user equipment is a receiver of the downlink traffic data.
18. The base station of claim 16, wherein in the modes b and c, the base station updates or determines the short TTI category according to at least one of the following information, comprising: the short TTI category, access information corresponding to the short TTI category, and service status information of the base station.
19. The base station of claim 18, wherein the access information corresponding to the short TTI category comprises at least one of:
a TTI length of the short TTI type, an uplink resource location used for performing the communication of the short TTI type, a downlink resource location used for performing the communication of the short TTI type, paging channel information used for transmitting the short TTI type, location information of a Random Access Channel (RACH) used for performing the communication of the short TTI type, and random access sequence information used in the RACH.
20. The base station of claim 18, wherein the RACHs in the configuration information for different short TTI types are the same or different.
21. The base station of claim 19, wherein the access information for the short TTI class further comprises:
the random access sequence information is a random access sequence appointed in advance; and/or indication information communicated by adopting a non-collision random access flow.
22. The base station of claim 16, wherein:
the first sending module is further configured to, when the base station and the user equipment support multiple paging channels, send, by the base station, a paging message to the user equipment on a paging channel selected by an MME or selected by the base station, where the paging channel includes a paging channel in a non-short TTI format and/or a paging channel in a short TTI format.
23. The base station of claim 16, further comprising:
the first broadcasting module is used for broadcasting the short TTI type and the access information corresponding to the short TTI type to all the user equipment.
24. The base station of claim 23, wherein one or at least two short TTI categories are included in the same broadcast message.
25. The base station of claim 23, wherein the base station further comprises:
and a changing module for changing the access information corresponding to the short TTI category.
26. The base station of claim 25, wherein:
the changing module is specifically 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 at least one of the following information, and includes:
service state information of the base station;
service load information of each short TTI category;
and the base station supports the capability information of each parameter in the access information of each short TTI category.
27. The base station of claim 25, wherein the base station further comprises:
and the second broadcasting module is used for broadcasting the short TTI category and the access information corresponding to the changed short TTI category to all the user equipment after changing the access information corresponding to the short TTI category.
28. The base station of claim 25, wherein the base station further comprises:
and a reporting module, configured to report, after changing the access information corresponding to the short TTI category, the changed access information to an MME if the access information corresponding to the short TTI category is changed when the short TTI category in the paging message is determined by the MME.
29. The base station of claim 28, wherein the base station further comprises:
and a second sending module, configured to send the category information and the capability information of the paging channel supported locally to the MME.
30. A user device, comprising:
a receiving module, configured to receive a paging message, where the paging message includes a short Transmission Time Interval (TTI) category;
a communication module, configured to perform short TTI communication according to the short TTI category in the paging message;
the communication module includes:
an obtaining unit, configured to obtain access information corresponding to a short TTI type from access information corresponding to the short TTI type broadcast by a base station;
a communication unit, configured to perform short TTI communication according to the access information;
the paging message received by the user equipment is an updated paging message which is sent to the user equipment after the base station receives the paging message which is sent by MME and carries the short TTI category and updates the short TTI category in the paging message; or the paging message received by the user equipment is a paging message with a short TTI category, which is sent to the user equipment after the base station receives the service information of the low-delay service sent by the MME and determines the short TTI category corresponding to the low-delay service.
CN201510585890.1A 2015-09-15 2015-09-15 Method and device for sending and receiving short transmission time interval communication information Active CN106535352B (en)

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3944550B1 (en) 2017-05-05 2023-10-04 Telefonaktiebolaget LM Ericsson (publ) Signaling of multiple short tti transmissions
CN114666845A (en) * 2018-03-26 2022-06-24 华为技术有限公司 Information processing method and equipment

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101415227A (en) * 2007-10-15 2009-04-22 大唐移动通信设备有限公司 Method, apparatus and system for configuring transmission time interval for supporting high speed mobile transmission
CN102740462A (en) * 2011-04-11 2012-10-17 中兴通讯股份有限公司 Method for processing enhanced dedicated transport channel (E-DCH) and system thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100946901B1 (en) * 2006-02-07 2010-03-09 삼성전자주식회사 Method and system for allocating resource in a communication system
KR20080086045A (en) * 2007-03-21 2008-09-25 엘지전자 주식회사 Method for transmitting and receiving paging information in wirelss communication system
CN101605356B (en) * 2008-06-12 2011-11-02 电信科学技术研究院 Method, device and system for indicating resources
CN102740407B (en) * 2011-04-11 2017-08-29 中兴通讯股份有限公司 Uplink dispatch method and system, terminal and base station

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101415227A (en) * 2007-10-15 2009-04-22 大唐移动通信设备有限公司 Method, apparatus and system for configuring transmission time interval for supporting high speed mobile transmission
CN102740462A (en) * 2011-04-11 2012-10-17 中兴通讯股份有限公司 Method for processing enhanced dedicated transport channel (E-DCH) and system thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Paging in DCI only;Ericsson;《3GPP TSG-RAN WG2 NR AH#3 R2-1800363》;20180111;正文第1页至第3页 *
Study of shorter TTI for latency reduction;Ericsson;《3GPP TSG-RAN WG2 #91 R2-153493》;20150814;正文第1页至第5页 *

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