WO2014067369A1 - Lte-a中机器类型通信的方法、系统及设备 - Google Patents

Lte-a中机器类型通信的方法、系统及设备 Download PDF

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Publication number
WO2014067369A1
WO2014067369A1 PCT/CN2013/084027 CN2013084027W WO2014067369A1 WO 2014067369 A1 WO2014067369 A1 WO 2014067369A1 CN 2013084027 W CN2013084027 W CN 2013084027W WO 2014067369 A1 WO2014067369 A1 WO 2014067369A1
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Prior art keywords
enb
information
sent
rrc connection
cluster unit
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PCT/CN2013/084027
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English (en)
French (fr)
Inventor
邬钢
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中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US14/439,932 priority Critical patent/US9736620B2/en
Priority to EP13851126.6A priority patent/EP2916615A4/en
Publication of WO2014067369A1 publication Critical patent/WO2014067369A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14Spectrum sharing arrangements between different networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/21Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/14Direct-mode setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/27Transitions between radio resource control [RRC] states
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/04Terminal devices adapted for relaying to or from another terminal or user
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08Access point devices

Definitions

  • the present invention relates to a machine type communication (MTC) technology in the field of wireless communication, and in particular, to a method, system and device for enhancing MTC in Long Term Evolution-Advanced (LTE-A).
  • MTC machine type communication
  • LTE-A Long Term Evolution-Advanced
  • MTC refers to the transmission of information through a communication network to realize machine-to-machine data transmission, that is, interconnection and intercommunication between machines through a communication network. Since the mobile communication network does not need to be manually deployed on the terminal side, it can provide mobility support, which is conducive to cost saving and can meet the communication requirements in a dangerous environment, so that the MTC service with the mobile communication network as the bearer has received extensive attention. In order to reduce the operating cost of the entire network, mobile operators need to maximize operational efficiency and control the number of radio access technologies (RATs) under limited spectrum resources.
  • RATs radio access technologies
  • the base station needs to implement data transmission with each user equipment (User Equipment, UE).
  • User Equipment User Equipment
  • the burden of the base station will become heavier and heavier.
  • the main purpose of the embodiments of the present invention is to provide a method, system, and device for MTC in LTE-A, which can improve resource utilization and reduce the burden on the base station under limited spectrum resources.
  • An embodiment of the present invention provides a method for MTC in LTE-A, where the method includes: The MTC UE is divided into one or more cluster units, and each cluster unit includes a second UE as a cluster head and one or more first UEs as cluster members;
  • the first UE sends the data information to the second UE through the Physical Uplink Control Shared Channel (PUSCH), and the second UE forwards the data information to the evolved Node B (eNB) after receiving the data information.
  • the eNB After receiving the data information, the eNB sends a Data Transmission Grant (DTG) information to the first UE to complete the data information transmission.
  • TSG Data Transmission Grant
  • the method further includes:
  • the second UE forwards the Radio Resource Control (RRC) connection request information sent by the first UE to the eNB to request to establish a network connection; the eNB sends the RRC connection setup information to the first UE, and the first UE establishes the RRC connection.
  • RRC Radio Resource Control
  • the completion information is forwarded to the eNB by the second UE, and the network connection establishment is completed.
  • the method further includes:
  • the second UE forwards a random access preamble (RAP) signal sent by the first UE to the eNB to request network access, and the eNB sends a random access response (RAR) signal to the first UE.
  • RAP random access preamble
  • RAR random access response
  • the second UE forwards the message signal of the data link layer (DLL) and the network layer (NL) sent by the first UE to the eNB, and the eNB sends the contention resolution message to the first UE, and completes Network access.
  • DLL data link layer
  • NL network layer
  • the method further includes: the eNB transmitting the subframe resource configuration information to the second UE and the first UE by using the RRC connection setup information, where the subframe resource configuration information includes the subframe resource configuration information of the time domain and the frequency domain. Subframe resource configuration information.
  • the method further includes: the subframe resource configuration information in the time domain is directly sent by the eNB to the second UE and the first through the SubframeConfig signaling in the RRC connection setup information. UE;
  • the uplink information of the subframe resource configuration information in the frequency domain is sent by the eNB to the second UE and the first UE by using an uplink control information (UCI) in a physical uplink control channel (PUCCH);
  • UCI uplink control information
  • PUCCH physical uplink control channel
  • DCI Downlink Control Information
  • the embodiment of the present invention further provides a cluster unit of the MTC in the LTE-A, where the cluster unit includes a second UE and one or more first UEs, where
  • the second UE is configured to forward data information sent by the first UE to the eNB;
  • the first UE is configured to send the data information to the second UE by using the PUSCH, and is further configured to receive the DTG information sent by the eNB, and complete the data information transmission.
  • the second UE is configured to forward the RRC connection request information sent by the first UE to the eNB, and further configured to forward the RRC connection setup complete information sent by the first UE to the eNB, to complete the network connection establishment;
  • the first UE is configured to send an RRC connection request information to the second UE to request to establish a network connection, and is further configured to send, after receiving the RRC connection setup information, the RRC connection establishment complete information to the second UE.
  • the second UE is configured to forward the RAP signal sent by the first UE to the eNB; and further configured to forward the DLL and the NL message signal sent by the first UE to the eNB;
  • the first UE is configured to send a RAP signal to the second UE to request network access, and receive the RAR signal sent by the eNB; and configured to send the DLL and the NL message signal to the second UE, and receive the eNB and the eNB. Competing to parse the message and complete network access.
  • An embodiment of the present invention further provides a system for MTC in LTE-A, where the system includes an eNB and one or more cluster units, and each cluster unit includes one second UE as a cluster head and one or more a first UE that is a cluster member;
  • the eNB is configured to: after receiving the data information sent by the second UE in the cluster unit, send the DTG information to the first UE in the cluster unit to complete the data information transmission;
  • the cluster unit is configured to forward, by the second UE, data information sent by the first UE to the eNB.
  • the eNB is configured to: after receiving the RRC connection request information sent by the second UE in the cluster unit, send the RRC connection setup information to the first UE in the cluster unit;
  • the RRC connection establishment completion information sent by the second UE completes the establishment of the network connection;
  • the cluster unit is configured to send, by the second UE, an RRC connection request information to the eNB to establish a network connection, and is further configured to: after receiving the RRC connection setup information sent by the eNB, send, by the second UE, the first UE to send the eNB to the eNB.
  • the RRC connection establishes completion information.
  • the eNB is further configured to: after receiving the RAP signal sent by the second UE in the cluster unit, send the RAR signal to the first UE in the cluster unit; and further configured to be the second in the received cluster unit.
  • the contention resolution message is sent to the first UE in the cluster unit to complete the network access;
  • the cluster unit is further configured to forward, by the second UE, the RAP signal sent by the first UE to the eNB to request network access; and configured to forward, by the second UE, the message signals of the DLL and the NL sent by the first UE to the eNB.
  • the second UE is configured to forward the data information sent by the first UE to the eNB; the first UE is configured to send the data information to the second UE by using the PUSCH;
  • the DTG information completes the transfer of data information.
  • the second UE is configured to forward the RRC connection request information sent by the first UE to the eNB, and further configured to forward the RRC connection setup complete information sent by the first UE to the eNB, to complete the network connection establishment;
  • the first UE is configured to send an RRC connection request information request to the second UE to establish a network.
  • the network connection is further configured to: after receiving the RRC connection setup information, send the RRC connection setup complete information to the second UE.
  • the second UE is configured to forward the RAP signal sent by the first UE to the eNB; and further configured to forward the DLL and the NL message signal sent by the first UE to the eNB;
  • the first UE is configured to send a RAP signal to the second UE to request network access, and receive the RAR signal sent by the eNB; and configured to send the DLL and the NL message signal to the second UE, and receive the eNB and the eNB. Competing to parse the message and complete network access.
  • the eNB is further configured to send subframe resource configuration information to the cluster unit by using RRC connection setup information, where the subframe resource configuration information includes subframe resource configuration information of a time domain and subframe resource configuration information of a frequency domain. .
  • the subframe resource configuration information of the time domain is directly sent by the eNB to the second UE and the first UE in the cluster unit through the SubframeConfig signaling in the RRC connection setup information;
  • the uplink direction of the subframe resource configuration information in the frequency domain is sent by the eNB to the second UE and the first UE in the cluster unit by using the uplink control information UCI in the PUCCH; the downlink direction is sent by the eNB to the cluster unit through the DCI in the PDCCH.
  • the second UE and the first UE are the uplink control information UCI in the PUCCH.
  • the method, system and device for the MTC in the LTE-A divide the MTC UE into a plurality of cluster units, each cluster unit including a second UE as a cluster head and one or more as a cluster member.
  • the UE sends the data information to the second UE by using the uplink shared channel, and the second UE forwards the data information to the eNB after receiving the data information, and the eNB sends the DTG information to the first UE after receiving the data information, and completes the data.
  • Information transfer divide the MTC UE into a plurality of cluster units, each cluster unit including a second UE as a cluster head and one or more as a cluster member.
  • the second UE with the relay function forwards the data information sent by the first UE to the eNB in the uplink direction, so that the resource utilization can be improved under the limited spectrum resources, and the burden of the base station is reduced;
  • the number of the first UE is much larger than the number of the second UE, and the uplink transmission of the cluster member can be short-distance communication with the cluster head, which is equivalent to expanding the range of the base station to a certain extent;
  • the first UE is designed to adopt the minimum functional standard of the existing MTC UE, and the transmit power Small, reducing interference to surrounding users.
  • FIG. 1 is a schematic structural diagram of a system architecture of an MTC in an LTE-A according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of a network access method of an MTC in an LTE-A according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of an MTC in an LTE-A according to an embodiment of the present invention
  • Schematic diagram of the method of establishing a network connection
  • FIG. 4 is a schematic flowchart of a method for data transmission of an MTC in an LTE-A according to an embodiment of the present invention. detailed description
  • FIG. 1 is a schematic structural diagram of a system for supporting an MTC in an LTE-A according to an embodiment of the present invention.
  • the system includes an eNB 11 and a cluster unit 12; each cluster unit includes a second UE as a cluster head. And one or more first UEs as cluster members; wherein
  • the eNB 11 is configured to: after receiving the data information sent by the cluster unit 12, send the DTG information to the first UE that initiates the data information in the cluster unit 12, and complete the data information transmission;
  • the cluster unit 12 is configured to send data information to the eNB 11 by the second UE.
  • the MTC UE can be divided into a plurality of cluster units.
  • the eNB 11 is further configured to: after receiving the RRC connection request information sent by the second UE in the cluster unit 12, send the RRC connection setup information to the first UE in the cluster unit 12;
  • the RRC connection establishment completion information sent by the second UE in the cluster unit 12 completes the network connection establishment;
  • the cluster unit 12 is configured to send, by the second UE, the RRC connection request information to the eNB 11 to establish a network connection, and is further configured to: after receiving the RRC connection setup information sent by the eNB 11, the first UE is forwarded by the second UE.
  • the eNB 11 is further configured to be sent by the second UE in the received cluster unit 12.
  • the RAR signal is sent to the first UE of the cluster unit 12; and is further configured to send the contention resolution message to the cluster unit after receiving the message signals of the DLL and the NL sent by the second UE in the cluster unit 12.
  • the first UE in 12 completes network access;
  • the cluster unit 12 is configured to forward, by the second UE, the RAP signal sent by the first UE to the eNB 11 to request network access, and is further configured to forward, by the second UE, the message signals of the DLL and the NL sent by the first UE to the eNB 11 .
  • the eNB 11 is further configured to send subframe resource configuration information to the first UE and the second UE in the cluster unit 12 by using RRC connection setup information, where the subframe resource configuration information includes a subframe resource of a time domain. Configuration information and subframe resource configuration information of the frequency domain;
  • the subframe resource configuration information of the time domain is directly sent by the eNB 11 to the second UE and the first UE in the cluster unit 12 through the SubframeConfig signaling in the RRC connection setup information;
  • the uplink direction of the subframe resource configuration information of the frequency domain is sent by the eNB 11 to the second UE and the first UE in the cluster unit 12 through the UCI in the PUCCH; the downlink direction is sent by the eNB 11 to the cluster unit 12 through the DCI in the PDCCH.
  • the second UE and the first UE are the uplink direction of the subframe resource configuration information of the frequency domain.
  • the cluster unit 12 includes a second UE 121 and a first UE 122.
  • the second UE 121 is configured to forward data information sent by the first UE 122 to the eNB.
  • the first UE 122 is configured to send data information to the second UE 121 through the PUSCH; and is configured to receive DTG information sent by the eNB 11 to complete data information transmission.
  • the second UE 121 is further configured to forward the RRC connection request information sent by the first UE 122 to the eNB 11; and further configured to forward the RRC connection setup complete information sent by the first UE 122 to the eNB 11 , complete the network connection establishment;
  • the first UE 122 is further configured to send an RRC connection request information to the second UE 121 to request to establish a network connection; and is further configured to send an RRC connection establishment signal to the received eNB 11 After the message, the RRC connection setup complete information is sent to the second UE 121.
  • the second UE 121 is further configured to forward the RAP signal sent by the first UE 122 to the eNB 11; and further configured to forward the DLL and NL message signals sent by the first UE 122 to the eNB 11;
  • the first UE 122 is further configured to send a RAP signal to the second UE 121 to request network access, and receive an RAR signal sent by the eNB 11; and further configured to send a message of the DLL and the NL to the second UE 121.
  • the signal is received by the eNB 11 and the network access is completed.
  • the eNB 11 broadcasts control signaling, and advertises various information of the access network to each UE.
  • the first UE 122 initiates a RAP signal, and if the second UE 121 receives the RAP signal, the eNB 11 The second UE 121 forwards the RAP signal to the eNB 11. If no second UE 121 receives the RAP signal, the first UE 122 directly transmits the RAP signal to the eNB 11, where the first UE 122 is directly and The uplink communication process of the eNB 11 is prior art, and the present invention will not be described again.
  • the eNB 11 After receiving the RAP signal forwarded by the second UE 121, the eNB 11 sends the RAR signal to the first UE 122; the first UE 122 sends a message signal of the DLL and the NL to the second UE 121, and the second UE 121 sends the DLL and the DLL.
  • the message signal of the NL is forwarded to the eNB 11, and the eNB 11 sends the contention resolution message to the first UE 122 to complete the network access.
  • the first UE 122 initiates RRC connection request information, and after receiving the RRC connection request information sent by the first UE 122, the second UE 121 forwards the information to the eNB 11, and the eNB 11 sends the RRC connection setup information to the first UE 122.
  • the first UE 122 forwards the RRC connection setup complete information to the eNB through the second UE 121, and completes the network connection establishment;
  • the first UE 122 forwards the data information to the eNB through the second UE 121. After receiving the data information, the eNB 11 sends the DTG information to the first UE 122 to complete the data information transmission process.
  • the first UE has the general function of the existing MTC UE.
  • the radio part adopts the LTE/LTE-A frequency band, which is applicable to the LTE/LTE-A system; Single RF link; Simplifies Media Access Control (MAC) layer and Radio Link Control (RLC) layer protocol and physical layer process in terms of protocols and processes;
  • MAC Media Access Control
  • RLC Radio Link Control
  • baseband LTE/ The MTC UE standard of the simplest function in the LTE-A system, the Modulation Coding Scheme (MCS), and the Hybrid Automatic Repeat Request (HARQ) process are deleted to reduce the data rate and reduce the data rate. Transmit power, reduce power consumption, and reduce interference to surrounding users;
  • MCS Modulation Coding Scheme
  • HARQ Hybrid Automatic Repeat Request
  • the second UE loads the relay function on the general function of the existing MTC UE, and also adopts the LTE/LTE-A frequency band, so that it can forward the uplink data information of the first UE to the eNB.
  • FIG. 2 is a schematic flowchart of a method for accessing a network of an MTC in an LTE-A according to an embodiment of the present invention. As shown in FIG. 2, the method includes the following steps:
  • Step 201 to step 203 The first UE sends the RAP signal to the second UE, and the second UE forwards the RAP signal to the eNB, and the eNB sends the RAR signal to the first UE.
  • the method further includes: eNB broadcast control signaling, configured to advertise various information of the access network to each UE in the area.
  • Steps 204 to 206 The first UE sends a message signal of the DLL and the network NL to the second UE, and the second UE forwards the DLL and the NL message to the eNB, and the eNB sends the contention resolution message to the first UE to complete the network. Access.
  • the message signals of the DLL and the NL refer to DLL and NL information related to network access, and specifically include RRC connection request (RRC connection request) information, tracking area update information, and timing information. (scheduling request) information and so on.
  • FIG. 3 is a schematic flowchart of a method for network connection of an MTC in an LTE-A according to an embodiment of the present invention. As shown in FIG. 3, the method includes the following steps:
  • Step 301 to step 302 The first UE sends the RRC connection request information to the second UE. After receiving the RRC connection request information sent by the first UE, the second UE forwards the information to the eNB.
  • the second UE may select a connection request of the first UE, for example: in the cluster unit, multiple first UEs may initiate a connection request to the second UE, and the second UE may sequentially according to the length of the delay. Select a shorter delay to process.
  • Step 303 The eNB sends the RRC connection setup information to the first UE.
  • the eNB may further send the subframe resource configuration information to the first UE by using the RRC connection setup information, where the subframe resource configuration information includes the subframe resource configuration information of the time domain and the subframe resource configuration information of the frequency domain.
  • the subframe resource configuration information of the time domain is directly sent by the eNB to the second UE and the first UE in the cluster unit by using the subframe configuration signaling in the RRC connection setup information; the subframe resource configuration information of the frequency domain is uplinked.
  • the direction is sent by the eNB to the second UE and the first UE in the cluster unit by using the UCI in the PUCCH; the downlink direction is sent by the eNB to the second UE and the first UE in the cluster unit by using the DCI in the PDCCH.
  • the eNB is responsible for the configuration of the subframe resource of the MTC, and includes three links in the technical solution of the present invention: the eNB sent to the first UE and the second UE in the downlink direction; the first UE sent to the second UE in the uplink direction, and the second The UE is sent to the eNB.
  • the subframe resources that are sent by the second UE to the eNB in the downlink direction and the uplink direction are configured as prior art content, and are not described herein.
  • the first UE sends a sub-band or a subframe separately to the resource between the second UE, so that interference between the first UE and the second UE to other users can be avoided.
  • the resource configuration in the system according to the embodiment of the present invention can be divided into four cases, as shown in Table 1 to Table 4, where Table 1 is a Frequency Division Duplexing (FDD) system.
  • the frequency division resource configuration table is divided into two independent channels when operating in the frequency division system, one channel is used for transmitting downlink direction information, and the other channel is used for transmitting uplink direction information; wherein F1 is a downlink direction band, and F2 is a The uplink frequency band between the UE and the eNB, F3 is the MTC frequency band between the first UE and the second UE, and the F2 bandwidth is greater than the F3 bandwidth.
  • Table 2 is a time-division resource configuration table in an FDD system, in which the uplink frequency band and the downlink frequency band are divided into T1 and T2 time segments; wherein, the T1 and T2 time segments of the F1 downlink frequency band are both downlink frequency bands; The T1 time segment of the F2 uplink frequency band is divided into an MTC subframe between the first UE and the second UE, and the T2 time segment of the F2 uplink frequency band is divided into a subframe between the second UE and the eNB.
  • Table 3 is a frequency division resource configuration table in a Time Division Duplexing (TDD) system.
  • TDD Time Division Duplexing
  • uplink data and downlink data are in different time segments of the same frequency channel, and thus, resource configuration in Table 3
  • the T1 time period and the T2 time period are divided.
  • the T1 time period is the system downlink direction frequency band
  • the T2 time period is the uplink direction frequency band between the second UE and the eNB
  • the T1 time period is also the system downlink direction frequency band
  • the T2 time period is the first.
  • Table 4 is a time-division resource configuration table in a TDD system, wherein, in the resource configuration, the frequency channel is divided into three time segments: T1, ⁇ 2, and ⁇ 3 time segments, where the T1 time segment is a system downlink direction subframe.
  • the ⁇ 2 time period is an uplink subframe between the second UE and the eNB, and the T3 time
  • the segment is an MTC uplink subframe between the first UE and the second UE.
  • Step 306 Step 305: The first UE sends the RRC setup complete information to the second UE, and the second UE receives the RRC setup complete information sent by the first UE and forwards the information to the eNB.
  • FIG. 4 is a schematic flowchart of a method for data transmission of an MTC in an LTE-A according to an embodiment of the present invention. As shown in FIG. 4, the method includes the following steps:
  • Step 401 to step 402 The first UE sends the data information to the second UE, and the second UE receives the data information sent by the first UE and forwards the data information to the eNB.
  • the first UE sends the data information to the second UE by using the PUSCH
  • the second UE receives the data information sent by the first UE and forwards the data information to the eNB.
  • Step 403 The eNB sends the DTG signal to the first UE to complete the data transmission process.
  • the DTG signal includes Positive Acknowledgment (PACK) information and Negative Acknowledgment (NACK) information.
  • PACK Positive Acknowledgment
  • NACK Negative Acknowledgment
  • the embodiment of the present invention divides the MTC UE into a plurality of cluster units, each cluster unit includes a second UE as a cluster head and one or more first UEs as cluster members, and forwards the first through the second UE having the relay function.
  • the data information sent by the UE to the eNB so that it can be in a limited frequency
  • the number of the first UE is much larger than the number of the second UE, and the uplink transmission of the cluster member can be short-distance communication with the cluster head, which is equivalent to The range of the base station is expanded to some extent.
  • the first UE is designed to adopt the simplest functional standard of the existing MTC UE, and the transmission power is small, which reduces interference to surrounding users.

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Abstract

本发明实施例公开了一种LTE-A中机器类通信的方法,所述方法包括:将MTC UE分为一个以上簇单元,每个簇单元包括一个作为簇头的第二UE 和一个以上作为簇成员的第一UE;其中,所述第一UE将数据信息通过上行共享信道发送给第二UE,第二UE收到数据信息后将数据信息转发给eNB,eNB收到数据信息后将数据传输应答信息发送给第一UE,完成数据信息传输。本发明实施例同时还公开了一种LTE-A中机器类通信的系统及设备,采用本发明的LTE-A中机器类通信的方法、系统及设备,能够在有限的频谱资源下提高资源利用率,减轻基站的负担,同时减少了对周围用户的干扰。

Description

LTE-A中机器类型通信的方法、 系统及设备 技术领域
本发明涉及无线通信领域中的机器类型通信 ( Machine Type Communication, MTC )技术, 特别是涉及一种增强长期演进( Long Term Evolution- Advanced, LTE-A ) 中 MTC的方法、 系统及设备。 背景技术
MTC是指通过通信网络传递信息, 实现机器对机器的数据传输, 即通 过通信网络实现机器之间的互联、 互通。 移动通信网络由于终端侧不需人 工布网、 可提供移动性支撑, 有利于节约成本, 并可以满足在危险环境下 的通信需求, 使得以移动通信网络作为承载的 MTC服务得到了广泛关注。 移动运营商为了降低全网的运营成本, 需要在有限的频谱资源下尽量提高 运行效率, 有效控制无线接入( Radio Access Technology, RAT ) 的数量。 而机器类型通信是一个持续迅速扩大的市场, 意味着终端的数量会越来越 多。
现有技术中, 基站要与每个用户设备(User Equipment, UE )实现数据 传输, 在终端的数量越来越多的情况下, 基站的负担会越来越重。 发明内容
有鉴于此, 本发明实施例的主要目的在于提供一种 LTE-A中 MTC的 方法、 系统及设备, 能够在有限的频谱资源下提高资源利用率, 减轻基站 的负担。
为达到上述目的, 本发明实施例的技术方案是这样实现的:
本发明实施例提供了一种 LTE-A中 MTC的方法, 所述方法包括: 将 MTC UE分为一个以上簇单元, 每个簇单元包括一个作为簇头的第二 UE 和一个以上作为簇成员的第一 UE; 其中,
所述第一 UE将数据信息通过上行共享信道 ( Physical Uplink Control Shared Channel, PUSCH )发送给第二 UE, 第二 UE收到数据信息后将数 据信息转发给演进型基站(evolved Node B, eNB ), eNB收到数据信息后 将数据传输应答(Data Transmission Grant, DTG )信息发送给第一 UE, 完 成数据信息传输。
优选地, 所述第一 UE将数据信息通过 PUSCH发送给第二 UE之前, 所述方法还包括:
第二 UE 转发第一 UE 发来的无线资源控制协议 ( Radio Resource Control, RRC )连接请求信息给 eNB请求建立网络连接; eNB将 RRC连 接建立信息发送给第一 UE, 第一 UE将 RRC连接建立完成信息通过第二 UE转发给 eNB, 完成网络连接建立。
优选地, 所述第二 UE转发第一 UE发来的 RRC连接请求信息给 eNB 请求建立网络连接之前, 所述方法还包括:
所述第二 UE 转发第一 UE 发来的随机接入前导 (Random Access Preamble, RAP )信号给 eNB请求网络接入, eNB将随机接入响应( Random Access Response, RAR )信号发送给第一 UE; 第二 UE转发第一 UE发来 的数据链路层 ( Data Link Layer, DLL )和网络层(Network Layer, NL ) 的消息信号给 eNB, eNB将竟争解析消息发送给第一 UE, 完成网络接入。
优选地, 所述方法还包括: eNB通过 RRC连接建立信息向第二 UE和 第一 UE发送子帧资源配置信息,所述子帧资源配置信息包括时间域的子帧 资源配置信息和频率域的子帧资源配置信息。
优选地, 所述方法还包括: 所述时间域的子帧资源配置信息通过 RRC 连接建立信息中的 SubframeConfig信令由 eNB直接发送给第二 UE和第一 UE;
所述频率域的子帧资源配置信息上行方向通过物理上行控制信道 ( Physical Upliiilc Control Channel, PUCCH ) 中的上行控制信息 (Uplink Control Information, UCI ) 由 eNB发送给第二 UE和第一 UE; 下行方向通 过物理下行控制信道 ( Physical Dowiiiink Control Ciiaimei, PDCCH )中的下 行控制信息 (Downlink Control Information, DCI ) 由 eNB发送给第二 UE 和第一 UE。
本发明实施例还提供了一种 LTE-A中 MTC的簇单元, 所述簇单元包 括一个第二 UE和一个以上第一 UE; 其中,
所述第二 UE, 配置为将第一 UE发来的数据信息转发给 eNB;
所述第一 UE,配置为将数据信息通过 PUSCH发送给第二 UE;还配置 为接收 eNB发来的 DTG信息, 完成数据信息传输。
优选地, 所述第二 UE, 配置为将第一 UE发来的 RRC连接请求信息 转发给 eNB; 还配置为将第一 UE发来的 RRC连接建立完成信息转发给 eNB, 完成网络连接建立;
所述第一 UE, 配置为向第二 UE发送 RRC连接请求信息请求建立网 络连接; 还配置为在收到 eNB发来 RRC连接建立信息后, 向第二 UE发送 RRC连接建立完成信息。
优选地,所述第二 UE,配置为将第一 UE发来的 RAP信号转发给 eNB; 还配置为将第一 UE发来的 DLL和 NL的消息信号转发给 eNB;
所述第一 UE, 配置为向第二 UE发送 RAP信号请求网络接入,并接收 eNB发来的 RAR信号; 还配置为向第二 UE发送 DLL和 NL的消息信号, 并接收 eNB发来的竟争解析消息, 完成网络接入。
本发明实施例还提供了一种 LTE-A中 MTC的系统,所述系统包括 eNB 和一个以上簇单元,每个簇单元包括一个作为簇头的第二 UE和一个以上作 为簇成员的第一 UE; 其中,
所述 eNB,配置为在收到簇单元中第二 UE发来的数据信息后,将 DTG 信息发送给簇单元中的第一 UE, 完成数据信息传输;
所述簇单元, 配置为由第二 UE转发第一 UE向 eNB发送的数据信息。 优选地, 所述 eNB, 配置为在收到簇单元中第二 UE发来的 RRC连接 请求信息后, 将 RRC连接建立信息发送给簇单元中的第一 UE; 还配置为 接收簇单元中的第二 UE发来的 RRC连接建立完成信息, 完成网络连接建 立;
所述簇单元,配置为由第二 UE向 eNB发送 RRC连接请求信息请求建 立网络连接; 还配置为在收到 eNB发来的 RRC连接建立信息后, 由第二 UE转发第一 UE向 eNB发送的 RRC连接建立完成信息。
优选地, 所述 eNB, 还配置为在收到簇单元中第二 UE发来的 RAP信 号后, 将 RAR信号发送给簇单元中的第一 UE; 还配置为在收到簇单元中 第二 UE发来的 DLL和 NL的消息信号后, 将竟争解析消息发送给簇单元 中的第一 UE, 完成网络接入;
所述簇单元, 还配置为由第二 UE转发第一 UE向 eNB发送的 RAP信 号请求网络接入; 还配置为由第二 UE转发第一 UE向 eNB发送的 DLL和 NL的消息信号。
优选地,所述第二 UE,配置为将第一 UE发来的数据信息转发给 eNB; 所述第一 UE,配置为将数据信息通过 PUSCH发送给第二 UE;还配置 为接收 eNB发来的 DTG信息, 完成数据信息传输。
优选地, 所述第二 UE, 配置为将第一 UE发来的 RRC连接请求信息 转发给 eNB; 还配置为将第一 UE发来的 RRC连接建立完成信息转发给 eNB, 完成网络连接建立;
所述第一 UE, 配置为向第二 UE发送 RRC连接请求信息请求建立网 络连接; 还配置为在收到 eNB发来 RRC连接建立信息后, 向第二 UE发送 RRC连接建立完成信息。
优选地,所述第二 UE,配置为将第一 UE发来的 RAP信号转发给 eNB; 还配置为将第一 UE发来的 DLL和 NL的消息信号转发给 eNB;
所述第一 UE, 配置为向第二 UE发送 RAP信号请求网络接入,并接收 eNB发来的 RAR信号; 还配置为向第二 UE发送 DLL和 NL的消息信号, 并接收 eNB发来的竟争解析消息, 完成网络接入。
优选地, 所述 eNB, 还配置为通过 RRC连接建立信息向簇单元发送子 帧资源配置信息, 所述子帧资源配置信息包括时间域的子帧资源配置信息 和频率域的子帧资源配置信息。
优选地, 所述时间域的子帧资源配置信息通过 RRC连接建立信息中的 SubframeConfig信令由 eNB直接发送给簇单元中的第二 UE和第一 UE;
所述频率域的子帧资源配置信息上行方向通过 PUCCH 中的上行控制 信息 UCI 由 eNB发送给簇单元中的第二 UE和第一 UE; 下行方向通过 PDCCH中的 DCI由 eNB发送给簇单元中的第二 UE和第一 UE。
本发明实施例提供的 LTE-A中 MTC的方法、系统及设备,将 MTC UE 分为多个簇单元,每个簇单元包括一个作为簇头的第二 UE和一个以上作为 簇成员的第一 UE, 第一 UE将数据信息通过上行共享信道发送给第二 UE, 第二 UE收到数据信息后将数据信息转发给 eNB, eNB收到数据信息后将 DTG信息发送给第一 UE, 完成数据信息传输。 可见, 本发明实施例在上行 方向, 是通过具有中继功能的第二 UE转发第一 UE发送给 eNB的数据信 息, 这样, 能够在有限的频谱资源下提高资源利用率, 减轻基站的负担; 并且, 在每个簇单元中, 第一 UE的数量远大于第二 UE的数量, 簇成员的 上行传输可与簇头进行短距离通信, 相当于在一定程度上扩大了基站的范 围; 此外, 第一 UE在设计上采用现有 MTC UE最简功能标准, 发射功率 小, 减少了对周围用户的干扰。 附图说明
图 1为本发明实施例 LTE-A中 MTC的系统组成架构示意图; 图 2为本发明实施例 LTE-A中 MTC的网络接入方法流程示意图; 图 3为本发明实施例 LTE-A中 MTC的网络连接建立的方法流程示意 图;
图 4为本发明实施例 LTE-A中 MTC的数据传输的方法流程示意图。 具体实施方式
下面结合附图及具体实施例对本发明再作进一步详细的说明。
图 1为本发明实施例 LTE-A中支持 MTC的系统的组成架构示意图, 如图 1所示, 所述系统包括 eNB 11和簇单元 12; 每个簇单元包括一个作为 簇头的第二 UE和一个以上作为簇成员的第一 UE; 其中,
所述 eNB 11, 配置为在收到簇单元 12发来的数据信息后, 将 DTG信 息发送给簇单元 12中发起数据信息的第一 UE, 完成数据信息传输;
所述簇单元 12, 配置为由第二 UE向 eNB 11发送数据信息。
这里, 可以将 MTC UE分为多个簇单元。
优选地, 所述 eNB 11, 还配置为在收到簇单元 12中第二 UE发来的 RRC连接请求信息后,将 RRC连接建立信息发送给簇单元 12中的第一 UE; 还配置为接收簇单元 12中第二 UE发来的 RRC连接建立完成信息,完成网 络连接建立;
所述簇单元 12, 配置为由第二 UE向 eNB 11发送 RRC连接请求信息 请求建立网络连接; 还配置为在收到 eNB 11发来的 RRC连接建立信息后, 由第二 UE转发第一 UE向 eNB 11发送的 RRC连接建立完成信息。
优选地, 所述 eNB 11, 还配置为在收到簇单元 12中第二 UE发来的 RAP信号后,将 RAR信号发送给簇单元 12的第一 UE;还配置为在收到簇 单元 12中第二 UE发来的 DLL和 NL的消息信号后,将竟争解析消息发送 给簇单元 12中的第一 UE, 完成网络接入;
所述簇单元 12,配置为由第二 UE转发第一 UE向 eNB 11发送的 RAP 信号请求网络接入;还配置为由第二 UE转发第一 UE向 eNB 11发送的 DLL 和 NL的消息信号。
优选地, 所述 eNB 11, 还配置为通过 RRC连接建立信息向簇单元 12 中的第一 UE和第二 UE发送子帧资源配置信息,所述子帧资源配置信息包 括时间域的子帧资源配置信息和频率域的子帧资源配置信息;
这里, 所述时间域的子帧资源配置信息通过 RRC 连接建立信息中的 SubframeConfig信令由 eNB 11直接发送给簇单元 12中的第二 UE和第一 UE;
所述频率域的子帧资源配置信息上行方向通过 PUCCH 中的 UCI 由 eNB 11发送给簇单元 12中的第二 UE和第一 UE; 下行方向通过 PDCCH 中的 DCI由 eNB 11发送给簇单元 12中的第二 UE和第一 UE。
优选地, 所述簇单元 12包括第二 UE 121和第一 UE 122; 其中, 所述第二 UE 121, 配置为将第一 UE 122发来的数据信息转发给 eNB
11 ;
所述第一 UE 122,配置为将数据信息通过 PUSCH发送给第二 UE 121 ; 还配置为接收 eNB 11发来的 DTG信息, 完成数据信息传输。
优选地, 所述第二 UE 121, 还配置为将第一 UE 122发来的 RRC连接 请求信息转发给 eNB 11 ; 还配置为将第一 UE 122发来的 RRC连接建立完 成信息转发给 eNB 11, 完成网络连接建立;
相应的, 所述第一 UE 122, 还配置为向第二 UE 121发送 RRC连接请 求信息请求建立网络连接; 还配置为在收到 eNB 11发来 RRC连接建立信 息后, 向第二 UE 121发送 RRC连接建立完成信息。
优选地, 所述第二 UE 121, 还配置为将第一 UE 122发来的 RAP信号 转发给 eNB 11 ; 还配置为将第一 UE 122发来的 DLL和 NL的消息信号转 发给 eNB 11 ;
相应的, 所述第一 UE 122, 还配置为向第二 UE 121发送 RAP信号请 求网络接入, 并接收 eNB 11发来的 RAR信号; 还配置为向第二 UE 121发 送 DLL和 NL的消息信号, 并接收 eNB 11发来的竟争解析消息, 完成网络 接入。
具体的, eNB 11广播控制信令, 向各 UE发布接入网络的各种信息; 第一 UE 122收到控制信令后,发起 RAP信号,若有第二 UE 121收到 RAP 信号, 则该第二 UE 121将 RAP信号转发给 eNB 11, 若没有第二 UE 121 收到 RAP信号, 则第一 UE 122将 RAP信号直接发送给 eNB 11, 此处及下 文所述的第一 UE 122直接与 eNB 11的上行通信过程为现有技术, 本发明 将不再赘述。 eNB 11在收到第二 UE 121转发来的 RAP信号后, 将 RAR 信号发送给第一 UE 122;第一 UE 122向第二 UE 121发送 DLL和 NL的消 息信号, 第二 UE 121将 DLL和 NL的消息信号转发给 eNB 11 , eNB 11将 竟争解析消息发送给第一 UE 122, 完成网络接入;
第一 UE 122发起 RRC连接请求信息, 第二 UE 121收到第一 UE 122 发来的 RRC连接请求信息后, 将该信息转发给 eNB 11 , eNB 11将 RRC连 接建立信息发送给第一 UE 122, 第一 UE 122将 RRC连接建立完成信息通 过第二 UE 121转发给 eNB 11, 完成网络连接建立;
第一 UE 122将数据信息通过第二 UE 121转发给 eNB 11, eNB 11收到 数据信息后将 DTG信息发送给第一 UE 122, 完成数据信息传输过程。
这里, 所述第一 UE具有现有 MTC UE的一般功能, 底层设计上, 射 频部分采用 LTE/LTE-A频段,适用于 LTE/LTE-A系统;采用单一收发天线、 单一射频链路; 在协议和进程方面, 简化了介质访问控制 ( Media Access Control, MAC )层和无线链路控制 (Radio Link Control, RLC )层协议及 物理层进程; 在基带方面, 采用 LTE/LTE-A系统中最简功能的 MTC UE标 准, 低阶调制编码格式(Modulation Coding Scheme, MCS ), 删除混合自动 重传请求(Hybrid Automatic Repeat Request, HARQ )进程等, 以降低数据 速率、 减小发射功率、 降低功耗, 减少对周围用户的干扰;
所述第二 UE在现有 MTC UE的一般功能上加载了中继功能, 同样采 用 LTE/LTE-A频段, 使其能够将第一 UE的上行数据信息转发给 eNB。
图 2为本发明实施例 LTE-A中 MTC的网络接入的方法流程示意图, 如图 2所示, 包括以下步骤:
步骤 201〜步骤 203: 第一 UE将 RAP信号发送给第二 UE, 第二 UE将 RAP信号转发给 eNB, eNB将 RAR信号发送给第一 UE。
这里, 所述第一 UE将 RAP信号发送给第二 UE之前, 所述方法还包 括: eNB广播控制信令, 用于向区域范围内的各 UE发布接入网络的各种 信息。
步骤 204〜步骤 206: 第一 UE将 DLL和网络 NL的消息信号发送给第 二 UE,第二 UE将 DLL和 NL消息信号转发给 eNB, eNB将竟争解析消息 发送给第一 UE, 完成网络接入。
这里, 所述 DLL和 NL的消息信号指的是与网络接入相关的 DLL和 NL信息, 具体包括 RRC连接请求( RRC connection request )信息、 跟踪 区域更新 ( tracking area update )信息、 时序 i青求 ( scheduling request )信 息等等。
图 3为本发明实施例 LTE-A中 MTC的网络连接的方法流程示意图, 如图 3所示, 包括以下步骤:
步骤 301〜步骤 302: 第一 UE将 RRC连接请求信息发送给第二 UE, 第二 UE收到第一 UE发来的 RRC连接请求信息后转发给 eNB。 这里, 所述第二 UE可以对第一 UE的连接请求进行选择, 例如: 在簇 单元里可以有多个第一 UE向第二 UE发起连接请求, 第二 UE可以根据时 延的长短, 依次选择时延较短的进行处理。
步骤 303: eNB将 RRC连接建立信息发送给第一 UE。
这里,所述 eNB还可以通过 RRC连接建立信息向第一 UE发送子帧资 源配置信息, 所述子帧资源配置信息包括时间域的子帧资源配置信息和频 率域的子帧资源配置信息。
其中, 所述时间域的子帧资源配置信息通过 RRC 连接建立信息中的 SubframeConfig信令由 eNB直接发送给簇单元中的第二 UE和第一 UE; 所述频率域的子帧资源配置信息上行方向通过 PUCCH 中的 UCI 由 eNB发送给簇单元中的第二 UE和第一 UE;下行方向通过 PDCCH中的 DCI 由 eNB发送给簇单元中的第二 UE和第一 UE。
具体的, eNB负责 MTC的子帧资源配置, 在本发明技术方案中包括三 种链路: 下行方向 eNB发送给第一 UE和第二 UE; 上行方向第一 UE发送 给第二 UE、 第二 UE发送给 eNB; 其中, 下行方向及上行方向第二 UE发 送给 eNB的子帧资源配置为现有技术内容, 此处不在赘述。 上行方向第一 UE发送给第二 UE之间的资源单独分配一个子带或子帧, 这样可避免第一 UE和第二 UE之间的通信对其他用户的干扰。
具体来说, 本发明实施例所述的系统中的资源配置可分为四种情况, 见表 1〜表 4所示, 其中, 表 1为频分双工 ( Frequency Division Duplexing, FDD ) 系统中的频分资源配置表, 频分系统中操作时划分两个独立的信道, 一个信道用来传送下行方向信息, 另一个信道用来传送上行方向信息; 其 中, F1为下行方向频带, F2为第二 UE与 eNB之间上行方向频带, F3为 第一 UE和第二 UE之间 MTC频带, 且 F2带宽大于 F3带宽。 Fl (下行频带) eNB→第一 UE/ 第二 UE
F2 (上行频带 ) 第二 UE→eNB
F3 ( MTC频带) 第一 UE→第二 UE
表 1
表 2为 FDD系统中的时分资源配置表, 在所述资源配置中, 将上行频 带和下行频带中划分 T1和 T2时间段; 其中, F1下行频带的 T1和 T2时间 段均为下行方向频带; F2上行频带的 T1时间段划分为第一 UE和第二 UE 之间 MTC子帧, F2上行频带的 T2时间段划分为第二 UE与 eNB之间子帧。
Figure imgf000013_0001
表 2
表 3为时分双工 ( Time Division Duplexing, TDD ) 系统中的频分资源 配置表, 时分系统在操作时上行数据和下行数据在同一频率信道的不同时 间段中, 如此, 在表 3的资源配置中, 在 F1频带和 F2中划分出 T1时间段 和 T2时间段。在 F1频带中, T1时间段为系统下行方向频带, T2时间段为 第二 UE与 eNB之间上行方向频带; 在 F2频带中, T1时间段同为系统下 行方向频带, T2时间段为第一 UE和第二 UE之间 MTC上行子帧
Figure imgf000013_0002
表 3
表 4为 TDD系统中的时分资源配置表, 其中, 在所述资源配置中, 将 频率信道划分为三个时间段: Tl、 Τ2和 Τ3时间段, 其中, T1时间段为系 统下行方向子帧, Τ2时间段为第二 UE与 eNB之间上行方向子帧, T3时间 段为第一 UE和第二 UE之间 MTC上行子帧。
Figure imgf000014_0001
表 4
步骤 304〜步骤 305: 第一 UE将 RRC建立完成信息发送给第二 UE, 第二 UE收到第一 UE发来的 RRC建立完成信息后转发给 eNB。
图 4为本发明实施例 LTE-A中 MTC的数据传输的方法流程示意图, 如图 4所示, 包括以下步骤:
步骤 401〜步骤 402: 第一 UE将数据信息发送给第二 UE, 第二 UE收 到第一 UE发来的数据信息后转发给 eNB。
这里, 所述第一 UE将数据信息通过 PUSCH发送给第二 UE, 第二 UE 收到第一 UE发来的数据信息后转发给 eNB。
步骤 403: eNB将 DTG信号发送给第一 UE, 完成数据传输过程。 这里, 所述 DTG信号包括肯定确认字符(Positive Acknowledgment, PACK )信息和否定确认字符 (Negative Acknowledgment, NACK )信息, 当第一 UE收到 PACK信息时, 表明数据已经接收无误; 当第一 UE收到 NACK信息时, 表明数据接收有误需要重新传输, 则第一 UE返回执行步 骤 401内容继续传输数据信息。
以上所述, 仅为本发明的较佳实施例而已, 并非用于限定本发明的保 护范围。 凡在本发明的精神和范围之内所作的任何修改、 等同替换和改进 等, 均包含在本发明的保护范围之内。 工业实用性
本发明实施例将 MTC UE分为多个簇单元, 每个簇单元包括一个作为 簇头的第二 UE和一个以上作为簇成员的第一 UE, 通过具有中继功能的第 二 UE转发第一 UE发送给 eNB的数据信息, 这样, 能够在有限的频语资 源下提高资源利用率, 减轻基站的负担; 并且, 在每个簇单元中, 第一 UE 的数量远大于第二 UE 的数量, 簇成员的上行传输可与簇头进行短距离通 信, 相当于在一定程度上扩大了基站的范围; 此外, 第一 UE在设计上采用 现有 MTC UE最简功能标准, 发射功率小, 减少了对周围用户的干扰。

Claims

权利要求书
1、 一种 LTE-A中机器类型通信 MTC的方法, 所述方法包括: 将 MTC 用户设备 UE分为一个以上簇单元, 每个簇单元包括一个作为簇头的第二 UE和一个以上作为簇成员的第一 UE; 其中,
所述第一 UE将数据信息通过上行共享信道 PUSCH发送给第二 UE, 第二 UE收到数据信息后将数据信息转发给演进型基站 eNB, eNB收到数 据信息后将数据传输应答 DTG信息发送给第一 UE, 完成数据信息传输。
2、 根据权利要求 1所述的方法, 其中, 所述第一 UE将数据信息通过 PUSCH发送给第二 UE之前, 所述方法还包括:
第二 UE转发第一 UE发来的无线资源控制协议 RRC连接请求信息给 eNB请求建立网络连接; eNB将 RRC连接建立信息发送给第一 UE, 第一 UE将 RRC连接建立完成信息通过第二 UE转发给 eNB, 完成网络连接建 立。
3、 根据权利要求 2所述的方法, 其中, 所述第二 UE转发第一 UE发 来的 RRC连接请求信息给 eNB请求建立网络连接之前, 所述方法还包括: 所述第二 UE转发第一 UE发来的随机接入前导 RAP信号给 eNB请求 网络接入, eNB将随机接入响应 RAR信号发送给第一 UE; 第二 UE转发 第一 UE发来的数据链路层 DLL和网络层 NL的消息信号给 eNB, eNB将 竟争解析消息发送给第一 UE, 完成网络接入。
4、 根据权利要求 2所述的方法, 其中, 所述方法还包括:
eNB通过 RRC连接建立信息向第二 UE和第一 UE发送子帧资源配置 信息, 所述子帧资源配置信息包括时间域的子帧资源配置信息和频率域的 子帧资源配置信息。
5、 根据权利要求 4所述的方法, 其中, 所述方法还包括:
所述时间域的子帧资源配置信息通过 RRC 连接建立信息中的 SubframeConfig信令由 eNB直接发送给第二 UE和第一 UE;
所述频率域的子帧资源配置信息上行方向通过物理上行控制信道 PUCCH中的上行控制信息 UCI由 eNB发送给第二 UE和第一 UE; 下行方 向通过物理下行控制信道 PDCCH中的下行控制信息 DCI由 eNB发送给第 二 UE和第一 UE。
6、 一种 LTE-A中 MTC的簇单元, 所述簇单元包括一个第二 UE和一 个以上第一 UE; 其中,
所述第二 UE, 配置为将第一 UE发来的数据信息转发给 eNB;
所述第一 UE,配置为将数据信息通过 PUSCH发送给第二 UE;还配置 为接收 eNB发来的 DTG信息, 完成数据信息传输。
7、 根据权利要求 6所述的簇单元, 其中,
所述第二 UE,配置为将第一 UE发来的 RRC连接请求信息转发给 eNB; 还配置为将第一 UE发来的 RRC连接建立完成信息转发给 eNB, 完成网络 连接建立;
所述第一 UE, 配置为向第二 UE发送 RRC连接请求信息请求建立网 络连接; 还配置为在收到 eNB发来 RRC连接建立信息后, 向第二 UE发送 RRC连接建立完成信息。
8、 根据权利要求 6所述的簇单元, 其中,
所述第二 UE, 配置为将第一 UE发来的 RAP信号转发给 eNB; 还配 置为将第一 UE发来的 DLL和 NL的消息信号转发给 eNB;
所述第一 UE, 配置为向第二 UE发送 RAP信号请求网络接入,并接收 eNB发来的 RAR信号; 还配置为向第二 UE发送 DLL和 NL的消息信号, 并接收 eNB发来的竟争解析消息, 完成网络接入。
9、一种 LTE-A中 MTC的系统,所述系统包括 eNB和一个以上簇单元, 每个簇单元包括一个作为簇头的第二 UE 和一个以上作为簇成员的第一 UE; 其中,
所述 eNB,配置为在收到簇单元中第二 UE发来的数据信息后,将 DTG 信息发送给簇单元中的第一 UE, 完成数据信息传输;
所述簇单元, 配置为由第二 UE转发第一 UE向 eNB发送的数据信息。
10、 根据权利要求 9所述的系统, 其中,
所述 eNB, 配置为在收到簇单元中第二 UE发来的 RRC连接请求信息 后, 将 RRC连接建立信息发送给簇单元中的第一 UE; 还配置为接收簇单 元中的第二 UE发来的 RRC连接建立完成信息, 完成网络连接建立;
所述簇单元,配置为由第二 UE向 eNB发送 RRC连接请求信息请求建 立网络连接; 还配置为在收到 eNB发来的 RRC连接建立信息后, 由第二 UE转发第一 UE向 eNB发送的 RRC连接建立完成信息。
11、 根据权利要求 10所述的系统, 其中,
所述 eNB, 还配置为在收到簇单元中第二 UE发来的 RAP信号后, 将 RAR信号发送给簇单元中的第一 UE;还配置为在收到簇单元中第二 UE发 来的 DLL和 NL的消息信号后,将竟争解析消息发送给簇单元中的第一 UE, 完成网络接入;
所述簇单元, 还配置为由第二 UE转发第一 UE向 eNB发送的 RAP信 号请求网络接入; 还配置为由第二 UE转发第一 UE向 eNB发送的 DLL和 NL的消息信号。
12、 根据权利要求 9、 10或 11所述的系统, 其中,
所述第二 UE, 配置为将第一 UE发来的数据信息转发给 eNB;
所述第一 UE,配置为将数据信息通过 PUSCH发送给第二 UE;还配置 为接收 eNB发来的 DTG信息, 完成数据信息传输。
13、 根据权利要求 12所述的系统, 其中,
所述第二 UE,配置为将第一 UE发来的 RRC连接请求信息转发给 eNB; 还配置为将第一 UE发来的 RRC连接建立完成信息转发给 eNB, 完成网络 连接建立;
所述第一 UE, 配置为向第二 UE发送 RRC连接请求信息请求建立网 络连接; 还配置为在收到 eNB发来 RRC连接建立信息后, 向第二 UE发送 RRC连接建立完成信息。
14、 根据权利要求 13所述的系统, 其中,
所述第二 UE, 配置为将第一 UE发来的 RAP信号转发给 eNB; 还配 置为将第一 UE发来的 DLL和 NL的消息信号转发给 eNB;
所述第一 UE, 配置为向第二 UE发送 RAP信号请求网络接入,并接收 eNB发来的 RAR信号; 还配置为向第二 UE发送 DLL和 NL的消息信号, 并接收 eNB发来的竟争解析消息, 完成网络接入。
15、 根据权利要求 11 所述的系统, 其中, 所述 eNB, 还配置为通过 RRC连接建立信息向簇单元发送子帧资源配置信息, 所述子帧资源配置信 息包括时间域的子帧资源配置信息和频率域的子帧资源配置信息。
16、 根据权利要求 15所述的系统, 其中,
所述时间域的子帧资源配置信息通过 RRC 连接建立信息中的 SubframeConfig信令由 eNB直接发送给簇单元中的第二 UE和第一 UE; 所述频率域的子帧资源配置信息上行方向通过 PUCCH中的 UCI由 eNB发送给簇单元中的第二 UE和第一 UE; 下行方向通过 PDCCH中的 DCI由 eNB发送给簇单元中的第二 UE和第一 UE。
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