CN109644322A - Transmit method, terminal device and the base station of data - Google Patents

Transmit method, terminal device and the base station of data Download PDF

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Publication number
CN109644322A
CN109644322A CN201680088698.4A CN201680088698A CN109644322A CN 109644322 A CN109644322 A CN 109644322A CN 201680088698 A CN201680088698 A CN 201680088698A CN 109644322 A CN109644322 A CN 109644322A
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China
Prior art keywords
information
terminal device
base station
scheduling information
search space
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Inventor
王宏
李秉肇
陈力
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services

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

Abstract

The invention discloses a kind of methods for transmitting data, enable terminal device receiving multicast traffic data.This method comprises: terminal device receives the first scheduling information that base station is sent, first scheduling information is used for the transmission of base station scheduled multicast business datum, first scheduling information maps to the first search space or the second search space, first search space is used to carry the control information for the terminal device for carrying common control information, the second search space；Terminal device receives the cast service data that base station is sent according to the first scheduling information.

Description

Transmit method, terminal device and the base station of data Technical field
The present invention relates to field of data transmission, and more particularly, to a kind of method, terminal device and base station for transmitting data.
Background technique
Long term evolution (Long Term Evolution, LTE) machine type communication (Machine type communication, MTC it) is different from traditional LTE communication, LTE MTC does not pursue message transmission rate, multiband, multiple antennas, full duplex transmission.But pursue longer terminal installation time, less expensive terminal installation cost, that is, require terminal to can be realized low-power consumption, low cost.Currently, MTC only supports unicast communication, i.e., each terminal, which needs to establish with base station, to be communicated to connect.The MTC terminal largely disposed, base station will face a large amount of terminal connection number and a large amount of resource consumption.This is for entire communication system, a undoubtedly greatly challenge.For this purpose, a kind of technology single cell point of multicast data transmission is introduced in MTC multiple spot (Single Cell Point to Multi-point, SC-PTM), the purpose of identical services data is sent to realize base station to multiple terminals.SC-PTM technology does not require terminal to establish connection, so as to reduce resource consumption, greatly mitigates the burden of network.
In the prior art, when base station sends multicast service (for example, sending multicast service by SC-PTM) data to terminal, base station is firstly the need of the control information and scheduling information for sending transmission cast service data to terminal device.Wherein, scheduling information is carried by Physical Downlink Control Channel (Physical Downlink Control Channel, PDCCH).Terminal device passes through detection PDCCH reception scheduling information.In order to improve the detection efficiency of terminal device, public search space and dedicated search space have been divided in the prior art.For different scheduling informations, terminal is scanned in different search spaces.
Terminal capability in LTE is stronger, can simultaneously scan for two kinds of search spaces, with the control information and scheduling information of receiving multicast traffic data.And then according to the control information with scheduling information receiving multicast traffic data.But for MTC UE, since its ability is limited, two kinds of search spaces cannot be simultaneously scanned for.MTC UE is caused not receive the scheduling information of cast service data in turn.Therefore, MTC UE can not receiving multicast traffic data.
Summary of the invention
The application provides a kind of method for transmitting data, enables terminal device receiving multicast traffic number According to.
First aspect, the application provides a kind of method for transmitting data, this method comprises: terminal device receives the first scheduling information that base station is sent, first scheduling information is used for the transmission of base station scheduled multicast business datum, first scheduling information maps to the first search space or the second search space, first search space is used to carry the control information for the terminal device for carrying common control information, the second search space；Terminal device receives the cast service data that base station is sent according to first scheduling information.
In one possible implementation, the terminal device receives the first scheduling information that base station is sent, it include: that the terminal device receives the first control information that base station is sent, temporal information and/or frequency information are carried in the first control information, wherein, the temporal information is used to indicate the subframe for carrying first scheduling information, and the frequency information is used to indicate the base station and sends the frequency range used when first scheduling information；The terminal device receives the first scheduling information that the base station is sent according to the temporal information and/or frequency information.
In one possible implementation, first scheduling information maps to first search space, it include first time information in the first control information, the terminal device receives the first scheduling information that base station is sent, include: that the terminal device monitors first search space in the subframe indicated by the first time information, receives first scheduling information that the base station is sent.
In one possible implementation, the terminal device is in connected state.
It should be understood that terminal device can search for always the first search space when being in Idle state.Therefore, in the case where the first scheduling information is mapped to the first search space by base station, terminal device can receive the first scheduling information sent to base station when being in Idle state.And when terminal device is in connected state, terminal device is according to the first time information in the first control information, during searching for the second search space, by monitoring the first search space in the subframe indicated by first time information, to receive the first scheduling information of first base station transmission.
In one possible implementation, it further include first frequency information in the first control information, the first frequency information is used to indicate the first frequency range, the terminal device receives the first scheduling information that base station is sent, include: that the terminal device monitors first search space in first frequency range, receives first scheduling information that the base station is sent.
In one possible implementation, when the terminal device is in connected state, the terminal device receives after the cast service data that the base station is sent, the method also includes: the terminal device starts first timer, and monitors first search space during first timer operation；After the first timer is overtime, the terminal device searches for second search space.
In one possible implementation, first scheduling information maps to the second search space, it include the second temporal information in the first control information, the terminal device receives the first scheduling information that base station is sent, include: that the terminal device monitors second search space in the subframe indicated by second temporal information, receives first scheduling information that the base station is sent.
In one possible implementation, the terminal device is in Idle state.
It is similar that the first scheduling information mapped into the first search space with previously described base station, in the case where the first scheduling information is mapped to the second search space by base station, since terminal device may search for dedicated search space in connected state, the first scheduling information sent to base station can receive.And when terminal device is in Idle state, by allowing terminal device during searching for the first search space, the second search space is monitored in the subframe indicated by the second temporal information, so as to receive the first scheduling information of base station transmission.
In one possible implementation, the first control information further includes second frequency information, and the second frequency information is used to indicate the second frequency range；The terminal device receives the first scheduling information that base station is sent, comprising: the terminal device monitors second search space in second frequency range, receives the first scheduling information that the base station is sent.
In one possible implementation, when the terminal device is in Idle state, the terminal device receives after the cast service data that the base station is sent, the method also includes: the terminal device starts second timer, and monitors second search space during second timer operation；After the second timer is overtime, the terminal device searches for first search space.
In one possible implementation, the terminal device receives the first control information that base station is sent, it include: that the terminal device receives the system message that the base station is sent, it include third temporal information in the system message, the third temporal information is used to indicate the subframe of the second scheduling information of carrying, second scheduling information dispatches the transmission of the first control information for the base station, and second scheduling information maps to the first search space；The terminal device receives second scheduling information in the subframe indicated by the third temporal information；The terminal device receives the first control information according to second scheduling information.
In one possible implementation, it further include third frequency information in the system message, the third frequency information is used to indicate the base station and sends the third frequency range used when second scheduling information, the terminal device receives the second scheduling information that base station is sent, comprising: the terminal device receives second scheduling information that the base station is sent in the third frequency range.
In one possible implementation, the first search space is public search space, and the second search is empty Between be terminal device dedicated search space.
Second aspect, the application provides a kind of method for transmitting data, this method comprises: base station sends the first scheduling information to terminal device, first scheduling information is used for dispatch terminal equipment receiving multicast traffic data, first scheduling information maps to the first search space or the second search space, wherein, the first search space is used to carry the control information for the terminal device for carrying common control information, the second search space；Base station sends the cast service data to terminal device.
In one possible implementation, the base station sends the first scheduling information to terminal device, including: the base station sends the first control information to the terminal device, the first control information controls the transmission of first scheduling information for the base station, it include temporal information and/or frequency information in the first control information, the temporal information is used to indicate the subframe for carrying first scheduling information, and the frequency information is used to indicate the base station and sends the frequency range used when first scheduling information；The base station sends first scheduling information to the terminal device.
In one possible implementation, first scheduling information maps to first search space, it include first time information in the first control information, the base station sends the first scheduling information to the terminal device, comprising: the base station sends first scheduling information to the terminal device in the subframe indicated by the first time information.
In one possible implementation, it include first frequency information in the first control information, the first frequency information is used to indicate the first frequency range, the base station sends the first scheduling information to the terminal device, comprising: the base station sends first scheduling information to the terminal device in first frequency range.
In one possible implementation, first scheduling information maps to second search space, it include the second temporal information in the first control information, the base station sends the first scheduling information to the terminal device, comprising: the base station sends first scheduling information to the terminal device in the subframe indicated by second temporal information.
In one possible implementation, it further include second frequency information in the first control information, the second frequency information is used to indicate the second frequency range, the base station sends the first scheduling information to the terminal device, comprising: the base station sends first scheduling information to the terminal device in second frequency range.
In one possible implementation, the base station sends the first control information to the terminal device, including: the base station sends system message to the terminal device, it include third temporal information in the system message, the third temporal information is used to indicate the subframe of the second scheduling information of carrying, and described the Two scheduling informations dispatch the transmission of the first control information for the base station, and second scheduling information maps to the first search space；The base station sends the second scheduling information to the terminal device in the subframe indicated by the third temporal information；The base station sends the first control information to the terminal device.
In one possible implementation, it include third frequency information in the system message, the third frequency information is used to indicate the base station and sends the third frequency range used when second scheduling information, and the base station sends the second scheduling information to the terminal device in the third frequency range.
The third aspect, the application provide a kind of terminal device, the method in any possible implementation for executing first aspect or first aspect.Specifically, which includes the unit for executing the method in any possible implementation of first aspect or first aspect.
Fourth aspect, the application provide a kind of base station, the method in any possible implementation for executing second aspect or second aspect.Specifically, which includes the unit for executing the method in any possible implementation of second aspect or second aspect.
5th aspect, the application provide a kind of terminal device, which includes one or more processors, one or more memories, one or more transceivers (each transceiver includes transmitter and receiver), and is connected by bus.Transmitter or receiver are connect with one or more antennas, and pass through antenna receiving and transmitting signal.Memory is for storing computer program instructions (in other words, code).Processor is for executing the instruction stored in memory, and when executed, processor executes the method in any possible implementation of first aspect or first aspect.
6th aspect, the application provide a kind of base station, which includes one or more processors, one or more memories, one or more transceivers (each transceiver includes transmitter and receiver), and is connected by bus.Transmitter or receiver are connect with one or more antennas, and pass through antenna receiving and transmitting signal.Memory is for storing computer program instructions (in other words, code).Processor is for executing the instruction stored in memory, and when executed, processor executes the method in any possible implementation of second aspect or second aspect.
7th aspect, the application provides a kind of computer-readable medium, and for storing computer program, which includes the instruction for executing the method in any possible implementation of first aspect or first aspect.
Eighth aspect, the application provides a kind of computer-readable medium, and for storing computer program, which includes the instruction for executing the method in any possible implementation of second aspect or second aspect.
In embodiments of the present invention, base station is by by the scheduling information of terminal device receiving multicast traffic data (that is, first scheduling information) maps to the first search space or the second search space, and the first scheduling information is sent to terminal device, terminal device is enabled to receive the first scheduling information.It, being capable of receiving multicast traffic data to which terminal device is according to the first scheduling information.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, attached drawing needed in the embodiment of the present invention will be briefly described below, apparently, drawings in the following description are only some embodiments of the invention, for those of ordinary skill in the art, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 shows the system architecture diagram suitable for the embodiment of the present invention.
Fig. 2 shows the schematic flow charts of transmission data according to an embodiment of the present invention.
Fig. 3 shows the schematic diagram that DCI according to an embodiment of the invention maps to search space.
Fig. 4 shows the schematic diagram of the method for transmission data according to an embodiment of the invention.
Fig. 5 shows the schematic diagram of the method for transmission data according to another embodiment of the present invention.
Fig. 6 shows the schematic diagram that DCI according to another embodiment of the present invention maps to search space.
Fig. 7 shows the schematic diagram of the method for transmission data according to an embodiment of the invention.
Fig. 8 shows the narrowband of one embodiment of the invention and the schematic diagram of G-RNTI corresponding relationship.
Fig. 9 shows the schematic diagram of the method for transmission data according to another embodiment of the present invention.
Figure 10 shows the schematic figure of the method for transmission data according to yet another embodiment of the invention.
Figure 11 shows the schematic block diagram of terminal device 600 according to an embodiment of the present invention.
Figure 12 shows the schematic block diagram of base station 700 according to an embodiment of the present invention.
Figure 13 shows the schematic diagram of the terminal device 800 of the embodiment of the present invention.
Figure 14 shows the schematic diagram of the base station 900 of the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is a part of the embodiments of the present invention, rather than whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art's every other embodiment obtained under the premise of not making the creative labor, all should belong to the scope of protection of the invention.
It should be understood that the technical solution of the embodiment of the present invention can be applied to various communication systems, and such as: global system for mobile telecommunications (Global System of Mobile communication, GSM) system, code divide more Location (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) system, LTE frequency division duplex (Frequency Division Duplex, FDD) system, LTE time division duplex (Time Division Duplex, TDD), Universal Mobile Communication System (U Niversal Mobile Telecommunication System, UMTS), global interconnection inserting of microwave (Worldwide Interoperability for Microwave Access, WIMAX) communication system etc..
It should also be understood that in embodiments of the present invention, terminal device is also referred to as user equipment (User Equipment, UE), terminal (Terminal), mobile subscriber equipment etc..It can be communicated through wireless access network (for example, Radio Access Network, RAN) with one or more core nets.Terminal device can be mobile terminal, such as mobile phone (or be " honeycomb " phone) and the computer with mobile terminal, such as, can be portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device, they exchange language and/or data with wireless access network.In embodiments of the present invention, terminal device includes mobile phone, intelligent terminal (wearable device, smartwatch, intelligent electric meter, intellectual water meter etc.), multimedia equipment, stream media equipment etc..In addition, the terminal device in the embodiment of the present invention can also be the terminal device in MTC.
In embodiments of the present invention, base station can be the base station (Base Transceiver Station, BTS) in GSM or CDMA, be also possible to the base station (NodeB, NB) in WCDMA.It can also be the data transmit-receive node etc. of network side in evolved base station (Evolutional Node B, ENB or e-NodeB) or the future communication systems (for example, 5G) in LTE.The embodiment of the present invention is not particularly limited.For convenience, following example is only e-NodeB as an example, being illustrated with base station.
Firstly, related notion involved in the embodiment of the present invention is introduced.
Cast service data: that is, multimedia broadcast multi-broadcasting business (Multimedia Broadcast Multicast Service, MBMS) data.In order to efficiently use mobile network resource, third generation partner program (3GPP, 3rd Generation Partnership Project) proposes MBMS.MBMS business is a kind of from a data source to the technology of multiple destination mobile terminals transmission data.The shared of network side (including core net and access net) resource is realized, the utilization rate of Internet resources (especially interface-free resources) is improved.
In LTE system, notice terminal device will change (for example, session start, service bearer update or session stopping etc.) about some MBMS business, under can first sending on PDCCH Row control information (Downlink Control Information, DCI) and MBMS radio network temporary identifier (MBMS Radio Network Temporary Identity, MBMS RNTI).Terminal further reads MBMS Control Channel (Multi-cast Control Channel, MCCH) message according to the relevant information in DCI.Specific business configuration parameter will be sent on MCCH channel, for example, traffic ID, physical layer configuration parameter etc..
Public search space and dedicated search space: core of the PDCCH as system resource allocation and control message scheduling, what information what terminal did not knew current PDCCH transmission generally is, do not know yet information that oneself is needed where.But terminal is generally known oneself any information to be expected.For example, terminal, at Idle state (that is, IDLE state), the information of expectation is paging (paging) message and system message.After initiating random access, it is contemplated that accidental access response message.When there is upstream data etc. to be sent, the information of expectation is uplink grant message etc..For different desired information, terminal goes to verify with CCE information using corresponding RNTI.If verified successfully, terminal is known that this information is oneself needs.It can also be further known to DCI format, the demodulation mode etc. of this information, to solve the content of DCI.This process is also referred to as the blind examination of PDCCH.
In the prior art, the basic unit for carrying PDCCH is control channel unit (Control Channel Element, CCE).Each CCE includes 9 resource unit groups (Resource Element Group, REG), and each resource unit group includes 4 resource units (Resource Element, RE).If terminal is successively searched for according to the sequence of CCE, the calculation amount of terminal is obviously too big, and efficiency is very low.Especially in the case where system bandwidth is larger, CCE number is more.
In order to reduce the complexity that terminal carries out blind examination.The concept of search space is defined in existing protocol, and has divided the dedicated search space (UE-specific Search Space, USS) of public search space (Common Search Space, CSS) and terminal.
Public search space refers to that all terminals require the space of monitoring, commonly used to send paging, random access response (Random Access Response, RAR), system message and the uplink power control message of terminal etc..It may also be said that the scheduling information of these information is mapped to public search space.
The dedicated search space of terminal refers to the information for some terminal, does not need all terminal monitorings.It may also be said that the scheduling information of these information to be mapped to the dedicated search space of terminal.The dedicated search space reflection has the scheduling information of at least one terminal device.The scheduling information of multiple terminal devices can be overlapped using the resource in the dedicated search space.The dedicated search space may include multiple CCE, and the multiple CCE is used to carry the control information or scheduling information of at least one terminal device, when there is multiple terminal devices, carry the control information of at least two terminal devices or the CCE of scheduling information It can be identical or different.
Below with reference to Fig. 1 to Figure 10, the method for the transmission data for embodiment that the present invention will be described in detail.
Fig. 1 shows architecture diagram according to the system in the embodiment of the present invention.As shown in Figure 1, including base station 101, terminal device 102 and terminal device equipment 103 in system.Wherein, terminal device 102 and terminal device 103 are in the coverage area of base station 101, and carry out multi-casting communication with base station 101.I.e. base station 101 sends cast service data to terminal device 102 and terminal device 103 simultaneously.
It should be understood that only sending cast service data as example using base station 101 to two terminal devices (that is, terminal device 102 and terminal device 103) in system architecture shown in Fig. 1.It is obvious also possible to there is greater number of terminal device.There is no any restrictions for the quantity of terminal device for the embodiment of the present invention.
It should also be understood that in embodiments of the present invention, number " first ", " second " are just to distinguishing different objects.For example, in order to distinguish different scheduling informations, different periods etc. any restriction should not be constituted to the protection scope of the embodiment of the present invention.
It should be noted that PDCCH is referred to as MPDCCH when the method for transmission data according to an embodiment of the present invention is applied to MTC, that is, it is directed to the PDCCH of MTC.
Fig. 2 shows the schematic flow charts of transmission data according to an embodiment of the present invention.As shown in Fig. 2, this method mainly includes step 210 and step 220.
210, terminal device receives the first scheduling information that base station is sent.
Wherein, the first scheduling information maps to the first search space or the second search space.First search space is used to carry the control information for the terminal device for carrying common control information, the second search space.
It should be understood that in embodiments of the present invention, the first scheduling information is sent to the cast service data of terminal for base station scheduling.In other words, terminal device can receive the cast service data of base station transmission according to the first scheduling information.
Optionally, as one embodiment, terminal device receives base station and sends the first scheduling information, comprising:
Terminal device receives the first control information that base station is sent, temporal information or frequency information are carried in first control information, wherein, temporal information is used to indicate the subframe that the first scheduling information is carried when base station sends the first scheduling information, and frequency information is used to indicate base station and sends the frequency range used when the first scheduling information；
Terminal device receives the first scheduling information that base station is sent according to temporal information or frequency information.
Specifically, before base station sends the first scheduling information to terminal, the first control information first can be sent to terminal device.Wherein, for base station, the first control information is for controlling the first scheduling information It sends.In this way, terminal device receives the first control information of base station transmission, so that it may know that base station sends the control information of the first scheduling information.For example, may include the configuration information of the first scheduling information in the first control information, configuration information includes that base station sends the instruction information of running time-frequency resource etc. used when the first scheduling information.In turn, terminal device can receive the first scheduling information of the subsequent transmission in base station according to the configuration information of the first scheduling information.
In embodiments of the present invention, the first scheduling information can map (mapped) to the first search space (that is, situation 1) or the second search space (that is, situation 2).Individually below under both of these case, the process that terminal device receives the first scheduling information is described in detail.
Situation 1
First scheduling information maps to the first search space
Optionally, as one embodiment, the first scheduling information maps to the first search space, includes first time information in the first control information, and first time information is used to indicate the subframe that the first scheduling information is carried when base station sends the first scheduling information,
And terminal device receives the first scheduling information that base station is sent, comprising:
Terminal device monitors the first search space in the subframe indicated by the first time information, to receive the first scheduling information of base station transmission.
In embodiments of the present invention, when only including first time information in the first control information, terminal device monitors the first search space in the subframe indicated by first time information, to receive the first scheduling information.
It should be understood that in the prior art, terminal device searches for public search space CSS in Idle state, dedicated search space USS is searched in connected state.Since CSS and USS cannot be simultaneously scanned in connected state, thus the scheduling information for scheduled multicast business datum of base station transmission is not received, and then cannot receive the cast service data of base station transmission yet.
In embodiments of the present invention, in the case where the first scheduling information is mapped to public search space by base station, base station first passes through to terminal device and sends the first control information, and the subframe of the first scheduling information is carried when first controls and send the first scheduling information to terminal device instruction base station in information.In this way, terminal device in connected state is after receiving the first control information, can the subframe indicated by first time information up monitor (monitoring) public search space, the first scheduling information of base station transmission can be received, and then receives the cast service data that base station is sent.
Optionally, as one embodiment, first is controlled in information including first frequency information, wherein first frequency information is used to indicate base station and sends the first frequency range used when the first scheduling information；
And terminal device receives the first scheduling information that base station is sent, comprising:
Terminal device monitors the first search space in the first frequency range, receives the first scheduling information that base station is sent.
Similar with carrying first time information in the first control information described above, base station can also indicate the frequency range that use when sending the first scheduling information to terminal device in the first control information.In this way, terminal device during searching for dedicated search space, searches for public search space in the first frequency range when being in connected state, to receive the first scheduling information of base station transmission.
It optionally, can simultaneously include first time information and first frequency information in the first control information.Correspondingly, the terminal device in connected state is in the subframe that first time information indicates, the frequency band search public search space of first frequency information instruction, to receive the first scheduling information of base station transmission.
It should be noted that the frequency range, which can be, forms narrowband by continuous 6 Physical Resource Block (Physical Resource Block, PRB).For example, 50 PRB of system bandwidth are divided into 8 narrowbands, the 1st is vacant with last 1 PRB, and the 2nd to 7PRB is first narrowband, and the 8th to 13 is the second narrowband, and so on.These narrowbands can be numbered with index value by segmentation sequence, index value can be used to indicate in the frequency range.Alternatively, the frequency range can also include multiple narrowbands.
Situation 2
First scheduling information maps to the second search space
Optionally, as one embodiment, it includes the second temporal information in the first control information that the first scheduling information, which maps to the second search space,
And terminal device receives the first scheduling information that base station is sent, comprising:
Terminal device monitors the second search space in the subframe indicated by the second temporal information, receive the first scheduling information that base station is sent.
According to described previously it is known that in the prior art, terminal device searches for public search space CSS in Idle state, dedicated search space USS is searched in connected state.Therefore, in the case where the first scheduling information is mapped to the second search space by base station, since the second search space can be monitored when terminal device is in connected state, thus it can receive the first scheduling information.
In embodiments of the present invention, when terminal device is in Idle state, base station controls the subframe for indicating the first scheduling information of carrying in information to terminal device by first.So that the terminal device in Idle state monitors the second search space in the subframe indicated by base station, to receive the first scheduling information.
Optionally, as one embodiment, the first control information includes second frequency information, and second frequency information is used to indicate base station and sends the second frequency range used when the first scheduling information,
And terminal device receives the first scheduling information that base station is sent, comprising:
Terminal device monitors the second search space in the second frequency range, receives the first scheduling information that base station is sent.
Similarly, base station can also indicate the second frequency range used when sending the first scheduling information by the first control information to terminal device.In this way, terminal device monitors the secondth search space in the second frequency range, so as to receive the first scheduling information of base station transmission.
It optionally, can simultaneously include the second temporal information and second frequency information in the first control information.At this point, terminal device according to the second temporal information and second frequency information, receives the first scheduling information in the subframe indicated by the second temporal information, in the frequency range indicated by second frequency information.
The first search space and the second search space is mapped to the first scheduling information above to be illustrated respectively.By being known that above, in embodiments of the present invention, base station by instruction terminal equipment at the time of specified and frequency range (such as, in MTC, can be narrowband) search for the search space for being mapped with the first scheduling information, to receive the first scheduling information of base station transmission, and then the cast service data that base station is sent can receive according to the first scheduling information.
Optionally, as one embodiment, terminal device receives the first control information that base station is sent, comprising:
Terminal device receives the system message that base station is sent, and includes third temporal information in system message, and third temporal information is used to indicate the subframe of the second scheduling information of carrying, transmission of second scheduling information for base station scheduling the first control information；
Terminal device receives the second scheduling information in the subframe indicated by third temporal information, the second scheduling information maps to the first search space；
Terminal device receives the first control information according to the second scheduling information.
In embodiments of the present invention, terminal device is when reception first controls information, the system message of base station transmission can be first received, system message can receive the second scheduling information, transmission of second scheduling information for base station scheduling the first control information with instruction terminal equipment.After terminal device receives the second scheduling information, according to the second scheduling information, the first control information is received.
Specifically, the third temporal information of the subframe of instruction the second scheduling information of carrying can be carried in system message.Alternatively, can also include the third frequency information that instruction base station sends the frequency range used when the second scheduling information in system message.The first search space is searched in frequency range indicated by terminal device subframe indicated by third temporal information or third frequency information, so as to receive the second scheduling information.
In embodiments of the present invention, for base station, the second scheduling information is for the first control of base station scheduling The transmission of information processed.Therefore, after terminal device receives the second scheduling information that base station is sent, it is known that the case where base station scheduling the first control information.For example, may include the instruction information of running time-frequency resource etc. that base station sends the first control information in the second scheduling information.And then terminal device can receive the first control information that base station is sent according to the second scheduling information.
Optionally, in embodiments of the present invention, the first scheduling information and the second scheduling information can map to different search spaces, can also map to identical search space.
220, base station sends cast service data to terminal.
Base station sends cast service data after the scheduling information (that is, first scheduling information) for sending cast service data to terminal device, to terminal device.Correspondingly, the first scheduling information that terminal device is sent according to base station in step 210 can receive the cast service data of base station transmission.
In embodiments of the present invention, base station by by the scheduling information of terminal device receiving multicast traffic data (i.e., first scheduling information) map to the first search space or the second search space, first scheduling information is sent to terminal device, terminal device is enabled to receive first scheduling information.To which terminal device is according to first scheduling information, the cast service data of base station transmission can be received.
It should be noted that base station, which needs to be repeated several times to terminal device, sends cast service data when the method for the transmission data of the embodiment of the present invention is applied to MTC.
Optionally, in embodiments of the present invention, the first search space is public search space, and the second search space is the dedicated search space of the terminal device.
In order to facilitate understanding, without loss of generality, below using DCI#1 as an example of the second scheduling information, using DCI#2 as an example of the first scheduling information, using SC-MCCH as an example of the first control information, the method for the transmission data of the embodiment of the present invention is illustrated.
Fig. 3 shows the schematic diagram that a kind of DCI maps to search space.As shown in figure 3, in this embodiment, DCI#1 and DCI#2 is mapped to public search space (Common Search Space, CSS) by base station.
It is understood that terminal device is generally in Idle state or connected state.About Idle state and connected state, explanation in the prior art can be referred to, is not described herein in detail.
Below in conjunction with Fig. 4, under DCI mapping mode shown in fig. 3, the process of terminal device receiving multicast traffic data is described in detail.
Situation 1
Terminal device is in Idle state.
Fig. 4 shows the schematic diagram of the method for transmission data according to an embodiment of the invention.Such as Fig. 4 institute Show, in the case where terminal device is in Idle state, since terminal device can search for always public search space, and in this embodiment, DCI#1 and DCI#2 are mapped to public search space by base station.Therefore, terminal device can receive the DCI#1 and DCI#2 that send to base station by monitoring public search space, thus can receive the cast service data of base station transmission.
Situation 2
Terminal device is in connected state.
Fig. 5 shows the schematic diagram of the method for transmission data according to an embodiment of the invention.As shown in figure 5, in this case, terminal device receives the cast service data that base station is sent, comprise the following steps:
301, eNB sends system message to UE.
Include the configuration information for being mapped with the PDCCH of DCI#1 in system message, include the temporal information that base station sends PDCCH in the configuration information (for the ease of distinguishing, hereinafter referred to as temporal information #1).Wherein, temporal information #1 is used to indicate the subframe of carrying PDCCH.
Specifically, the system message in step 301 can be SIB20.
302, UE searches for public search space in the subframe of temporal information #1 instruction according to system message, receives DCI#1 with blind examination PDCCH.
It should be understood that UE receives DCI#1, and then the SC-MCCH being carried on Physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH) can be received.It in embodiments of the present invention, include the configuration information for being mapped with the PDCCH of DCI#2, the temporal information including PDCCH in the configuration information in SC-MCCH (for the ease of distinguishing, hereinafter referred to as temporal information #2).Wherein, temporal information #2 is used to indicate the subframe of carrying PDCCH.
303, the finish time of UE subframe indicated by temporal information #1 starts to search for dedicated search space.
304, UE searches for public search space in the subframe indicated by temporal information #2, to receive DCI#2 according to SC-MCCH.
Similarly, UE receives DCI#2, and then can receive the SC-MTCH being carried on PDSCH.
305, UE started to search for dedicated search space in the finish time of the indicated subframe of temporal information #2.
As it can be seen that in this embodiment, base station is by mapping to public search space for DCI#1 and DCI#2, and when terminal is in connected state, configurating terminal searches for public search space on set period, with The scheduling information of receiving multicast traffic data, so as to receiving multicast traffic data.
Optionally, in embodiments of the present invention, UE will start a timer after the cast service data being successfully decoded on SC-MTCH.During timer operation, UE searches for public search space.When the timer expires, UE starts to search for dedicated search space.Specifically, which can be discontinuous reception non-active timer (drx-Inactivity Timer).
It should be noted that t shown in Fig. 51At the time of moment indicates UE decoding SC-MTCH success.t2At the time of moment indicates timer expiry.
It should be understood that in most cases, when a UE is after some subframe is scheduled and sends or receives data, it is likely that can continue to be scheduled in next several subframes.If UE waits until that next DRX cycle can bring additional delay again to receive or send these data.In order to reduce this kind of delay, after UE is scheduled, after cast service data is successfully decoded, UE starts a timer, searches for public search space always during the operation of timer, i.e. monitoring PDCCH (MPDCCH is directed to the PDCCH of MTC).When the timer expires, UE starts to search for dedicated search space again.
Fig. 6 shows the schematic diagram that another DCI maps to search space.As shown in fig. 6, in this embodiment, DCI#1 is mapped to CSS, DCI#2 is mapped into GSS.
In the following, the GSS to the embodiment of the present invention is described in detail.
In view of the difference of SC-PTM business, UE interested to identical services can be divided into one group of Group, and dedicated G-RNTI can be used when dispatching this business in this way and be scheduled.
Optionally, as one embodiment, GSS can be a kind of USS.That is, UE is searched in USS using G-RNTI, only this G-RNTI can distribute to the UE of a group.
Optionally, as one embodiment, base station can distribute a part of resource exclusively for G-RNTI.G-RNTI is searched in resource in this section, this search space is known as GSS.
Below in conjunction with Fig. 7 and Fig. 9, under the DCI mapping mode shown in Fig. 6, the process of terminal device receiving multicast traffic data is described in detail.
With it is similar above, the process of receiving multicast traffic data is illustrated when being respectively at Idle state and connected state to terminal device below.
Situation 1
Terminal device is in Idle state.
Fig. 7 shows the schematic diagram of the method for transmission data according to another embodiment of the present invention.Fig. 7 is the schematic diagram of receiving multicast traffic data when terminal device is in Idle state.Detailed process includes the following steps.
401, eNB sends system message to UE.
Include the configuration information for being mapped with the PDCCH of DCI#1 in system message, include the temporal information for sending the PDCCH for being mapped with DCI#1 in the configuration information (for the ease of distinguishing, hereinafter referred to as temporal information #3).
402, UE searches for public search space in the subframe indicated by temporal information #3, to receive DCI#1 according to system message.
It should be understood that UE receives DCI#1, and then the SC-MCCH being carried on PDSCH can be received.In embodiments of the present invention, include the configuration information for being mapped with the PDCCH of DCI#2 in SC-MCCH, include the temporal information for sending the PDCCH for being mapped with DCI#2 in the configuration information (for the ease of distinguishing, hereinafter referred to as temporal information #4).
Optionally, SC-MCCH further includes that base station sends the frequency information for being mapped with the PDCCH of DCI#2, and frequency information is used to indicate base station and sends the frequency range used when being mapped with the PDCCH of DCI#2.
In e-MTC, terminal carrys out sending and receiving data using relatively narrow bandwidth, therefore base station can indicate to send PDCCH on which narrowband (narrow band) to terminal.
Fig. 8 shows the schematic diagram of a kind of narrowband and the corresponding relationship of PDCCH.As shown in figure 8, different narrowbands can correspond to the different scrambled PDCCH of G-RNTI.Optionally, a narrowband can correspond to a G-RNTI, can also correspond to multiple.Shown in Fig. 8 only as an example.
It optionally, further include that the service type information, service type information and transmission of SC-MTCH are mapped with the temporal information of the PDCCH of DCI#2 and the corresponding relationship of frequency information in SC-MCCH.
For example, type of service can be software upgrading class business, group's voice service etc..By taking Fig. 8 as an example, software upgrading class business is sent on the narrowband 1 (that is, narrow band 1) of the subframe 1 of dispatching cycle, and group's voice service is sent on the narrowband 2 (that is, narrow band 2) of the subframe 2 of dispatching cycle etc..
403, UE searches for GSS in the subframe indicated by temporal information #4, to receive DCI#2 according to SC-MCCH.
Corresponding with step 402, when carrying frequency information in SC-MCCH, UE searches for GSS in the subframe indicated by temporal information #4 in the frequency range indicated by frequency information, to receive DCI#2.
It should be understood that UE receives DCI#2, and then receive SC-MTCH.
404, the finish time of UE subframe indicated by temporal information #4 starts to search for public search space.
Optionally, UE will start timer one by one after the cast service data being successfully decoded on SC-MTCH.During timer operation, UE searches for GSS.When the timer expires, UE starts Search for USS.
Specifically, which can be discontinuous reception non-active timer (drx-Inactivity Timer).
It should be understood that t in Fig. 73Moment and t4Period between moment is the period of timer operation.t3At the time of moment indicates UE decoding SC-MTCH success.t4At the time of moment indicates timer expiry.
Situation 2
Terminal device is in connected state.
Fig. 9 shows the schematic diagram of the method for transmission data according to another embodiment of the present invention.Fig. 9 is the schematic diagram of receiving multicast traffic data when terminal device is in connected state.Detailed process includes the following steps.
501, eNB sends system message to UE.
In embodiments of the present invention, include the configuration information for being mapped with the PDCCH of DCI#1 in system message, include the information for sending the temporal information (for the ease of distinguishing, hereinafter referred to as temporal information #5) of PDCCH in the configuration information.
502, UE searches for CSS in the subframe indicated by temporal information #5, to receive DCI#1 according to system message.
It should be understood that UE receives DCI#1, and then the SC-MCCH being carried on PDSCH can be received.It wherein, include the temporal information of eNB transmission PDCCH in SC-MCCH (for the ease of distinguishing, hereinafter referred to as temporal information #6).
Optionally, the temporal information of the PDCCH of DCI#1 and the corresponding relationship of frequency information can also be mapped with including frequency information, the service type information of SC-MTCH and service type information and transmission.
503, the finish time of UE subframe indicated by temporal information #5 starts to search for dedicated search space.
504, UE searches for GSS in the subframe indicated by temporal information #6, to receive DCI#2 according to SC-MCCH.
It should be understood that UE receives DCI#2, and then it can receive SC-MTCH.
505, the finish time of UE subframe indicated by temporal information #6 starts to search for dedicated search space.
In this embodiment, base station improves the flexibility of system call, can increase power system capacity by the way that DCI#1 and DCI#2 to be respectively mapped in different search spaces.
In the above embodiment, terminal device receives the process for the cast service data that base station is sent such as Under: base station sends system message SIB20 to terminal device, the PDCCH (for ease of description, being denoted as the first PDCCH) of configuration schedules SC-MCCH in SIB20；First PDCCH dispatches SC-MCCH；The PDCCH (for ease of description, being denoted as the 2nd PDCCH) of SC-MCCH configuration schedules SC-MTCH；2nd PDCCH dispatches SC-MTCH.
In addition to this, the process of terminal device receiving multicast traffic data can also be realized otherwise.
Figure 10 shows the schematic diagram of the transmission cast service data of yet another embodiment of the invention.Other several ways of transmission cast service data are shown in Figure 10.For example, number 1. shown in mode, base station mainly executes the following steps:
1, SIB20 is sent to terminal device, SIB20 indicates the configuration information of SC-MCCH.
2, SC-MCCH is sent to terminal device, includes the configuration information of the PDCCH of scheduling SC-MTCH in SC-MCCH.
3, PDCCH is sent to terminal, the configuration information of SC-MTCH is carried on PDCCH.
4, SC-MTCH is sent to terminal.
Correspondingly, terminal device receives the cast service data that base station is sent, and mainly executes following steps:
1, terminal device receives the SIB20 that base station is sent.
2, terminal device receives SC-MCCH according to the configuration information of SC-MCCH in SIB20.
3, according to the configuration information for the PDCCH for dispatching SC-MTCH in SC-MCCH, PDCCH is received.
4, according to the configuration information of the SC-MTCH carried on PDCCH, SC-MTCH is received.
Also, number 1. shown in mode, when base station, which sends multicast service type, to change, base station sends amendment advice come instruction terminal equipment, in order to which terminal device checks whether the type of service oneself being concerned about by PDCCH.In this way, the scheduling information that terminal device does not have to always send base station is monitored, to save overhead.
Similarly, number 2. shown in method, base station sends SIB20 to terminal device, includes the configuration information of the PDCCH of scheduling SC-MCCH in SIB20；PDCCH dispatches SC-MCCH；The configuration information of SC-MCCH instruction SC-MTCH.Number 3. shown in method, with above-mentioned number 2. shown in method it is similar, the difference is that directly being sent by the PDCCH of scheduling SC-MCCH when base station sends amendment advice.Number 4. shown in method, base station sends SIB20 to terminal device, and SIB20 indicates the configuration information of SC-MCCH；The configuration information of SC-MCCH instruction SC-MTCH.Terminal device is according to the configuration information receiving multicast traffic data of SC-MTCH.It is compiling Number 4. in method shown in, base station only when multicast service type changes, sends amendment advice by PDCCH.In Figure 10, number 2., 3., 4. shown in transmission cast service data mode in, base station and the operation that terminal device needs to be implemented are similar with aforesaid way 1, are no longer described in detail one by one here.
It should be understood that in embodiments of the present invention, it is not limited to realize that terminal device receives the cast service data that base station is sent by that method.
It will also be appreciated that step shown in each embodiment of the present invention or operation are only as an example, the deformation of other operations or various operations can also be executed.Also, in the specific implementation, each step can also be executed according to the sequence different from described in the embodiment of the present invention, and it is possible to and non-executing all operationss or step, or execute more steps.
Fig. 1 to Figure 10 is combined above, and the method for the transmission data of the embodiment of the present invention is explained in detail.Below in conjunction with Figure 11 to Figure 14, the terminal device and base station of the embodiment of the present invention are illustrated.
Figure 11 shows the schematic block diagram of terminal device 600 according to an embodiment of the present invention.As shown in figure 11, terminal device includes:
Receiving unit 610, for receiving the first scheduling information of base station transmission, first scheduling information is used for the transmission of base station scheduled multicast business datum, first scheduling information maps to the first search space or the second search space, first search space is used to carry the control information for the terminal device for carrying common control information, second search space；
Receiving unit 610 is also used to receive according to first scheduling information, receives the cast service data that base station is sent.
It should be understood that terminal device 600 shown in Figure 11 can also include processing unit 620.Processing unit 620 is used to determine the running time-frequency resource etc. used when base station sends cast service data according to received first scheduling information of receiving unit 610.To which receiving unit 610 receives the cast service data on the running time-frequency resource.
Here receiving unit can be receiver, and processing unit can be processor.Optionally, terminal device can also include storage unit.Storage unit can be memory, and memory is for storing computer instruction.When processor executes the instruction stored in memory, receiver executes the corresponding steps of the method for the transmission data of the embodiment of the present invention.
Each unit in terminal device 600 according to an embodiment of the present invention and above-mentioned other operations or function are respectively by the corresponding process of terminal device execution in the method in order to realize the transmission data of the embodiment of the present invention.For sake of simplicity, details are not described herein again.
In embodiments of the present invention, terminal device is by receiving base station maps to the first search space or second The scheduling information (that is, first scheduling information) for receiving multicast traffic data of search space, so that terminal device can receive the cast service data that base station is sent according to the first scheduling information.
Figure 12 shows the schematic block diagram of base station 700 according to an embodiment of the present invention.As shown in figure 12, base station includes:
Transmission unit 710, for sending the first scheduling information to terminal device, first scheduling information is used for the transmission of base station scheduled multicast business datum, first scheduling information maps to the first search space or the second search space, first search space is used to carry the control information for the terminal device for carrying common control information, second search space；
Transmission unit 710 is also used to, and sends first scheduling information to terminal device.
Each unit in base station 700 according to an embodiment of the present invention and above-mentioned other operations or function are respectively by the corresponding process of base station execution in the method in order to realize the transmission data of the embodiment of the present invention.For sake of simplicity, details are not described herein again.
In embodiments of the present invention, base station by by the scheduling information of terminal device receiving multicast traffic data (i.e., first scheduling information) map to the first search space or the second search space, first scheduling information is sent to terminal device, terminal device is enabled to receive first scheduling information.It, being capable of receiving multicast traffic data to which terminal device is according to first scheduling information.
It should be understood that base station 700 shown in Figure 12 can also include processing unit 720.The running time-frequency resource etc. that processing unit 720 uses when sending the first scheduling information for determining.To which transmission unit 710 sends cast service data to terminal device on the running time-frequency resource.
Here transmission unit can be transmitter, and processing unit can be processor.Optionally, terminal device can also include storage unit.Storage unit can be memory, and memory is for storing computer instruction.When processor executes the instruction stored in memory, transmitter executes the corresponding steps of the method for the transmission data of the embodiment of the present invention.
Figure 13 shows the schematic diagram of the terminal device 800 of the embodiment of the present invention.As shown in figure 13, terminal device includes: one or more processors 801, one or more memories 802, and one or more transceivers (each transceiver includes transmitter 803 and receiver 804) are connected by bus.Transmitter 803 or receiver 804 are connect with one or more antennas 805, and pass through antenna receiving and transmitting signal.Computer program instructions (in other words, code) is stored in memory.Processor 801 is for executing the instruction stored in memory 802, when executed,
Receiver 804 is used to receive the first scheduling information of base station transmission, and the first scheduling information is used for the transmission of base station scheduled multicast business datum, and the first scheduling information maps to the first search space or the second search is empty Between, first search space is used to carry the control information for the terminal device for carrying common control information, second search space；
Receiver 804 is also used to receive the cast service data that base station is sent according to the first scheduling information.
It should be understood that in embodiments of the present invention, processor 801 may include the circuit of the audio/video and logic function for terminal device.For example, processor 801 may include digital signal processor device, microprocessor device, analog-digital converter, digital analog converter etc..Control and the signal processing function of mobile device can be distributed among these devices according to the respective ability of these equipment.Processor 801 can also include internal voice coder VC, internal data modem DM etc..In addition, processor may include the function of operating one or more software programs, the software program be can store in memory.Terminal device is set to execute movement in general, processor and the software instruction stored can be configured as.For example, processor can operate linker.
Memory 802 may include read-only memory and random access memory, and provide instruction and data to processor 801.The a part of of memory 802 can also include volatile memory and/or nonvolatile memory.For example, volatile memory may include random access memory ram comprising on dynamic ram and/or static state RAM, chip and/or outer cache memory of chip etc..Nonvolatile memory can be Embedded and/or removable, it may include such as read-only memory, flash memories, magnetic storage device, such as hard disk, floppy disk drive, tape etc., CD drive and/or medium, nonvolatile RAM NVRAM etc..Similar to volatile memory, nonvolatile memory may include the speed buffering region temporarily stored for data.At least part of volatibility and or nonvolatile memory can be embedded into processor.Memory can store one or more software programs, instruction, block of information, data etc., can be used to execute the function of mobile terminal by the terminal device.For example, memory may include the identifier for capableing of unique identification terminal device, such as international mobile equipment identity IMEI code.
In embodiments of the present invention, transceiver may include such as infrared transceiver, use transceiver, radio universal serial bus USB transceiver, Bluetooth transceiving.Bluetooth transceiving can be operated according to low-power consumption or super low-power consumption Bluetooth technology.Although not showing that, terminal device can send signal (or data) by transmitter according to various Wireless networking technologies, and/or signal (data) are received by receiver.These technologies include: Wi-Fi, Wi-Fi low-power consumption, WLAN technology, such as 802.11 technology of IEEE, 802.15 technology of IEEE, 802.16 technology of IEEE etc..
During realization, each step of the above method can be completed by the integrated logic circuit of the hardware in processor 801 or the instruction of software form.The transmission data in conjunction with disclosed in the embodiment of the present invention The step of method, can be embodied directly in hardware processor and execute completion, or in processor hardware and software module combination execute completion.Software module can be located in the storage medium of this fields such as random access memory, flash memory, read-only memory, programmable read only memory or electrically erasable programmable memory, register maturation.The step of storage medium is located at memory 802, and processor 801 reads the information in memory 802, completes the above method in conjunction with its hardware.To avoid repeating, it is not detailed herein.
The function or aforesaid operations of terminal device 800 according to an embodiment of the present invention, the corresponding process executed in the method in order to realize the transmission data of the embodiment of the present invention by terminal device respectively.For sake of simplicity, details are not described herein again.
In embodiments of the present invention, terminal device by receive base station maps to the scheduling information for receiving multicast traffic data of the first search space or the second search space (i.e., first scheduling information), to which terminal device can receive the cast service data that base station is sent according to the first scheduling information.
Figure 14 shows the schematic diagram of the base station 900 of the embodiment of the present invention.As shown in figure 14, base station includes: one or more processors 901, one or more memories 902, and one or more transceivers (each transceiver includes transmitter 903 and receiver 904) are connected by bus.Transmitter 903 or receiver 904 are connect with one or more antennas 905, and pass through antenna receiving and transmitting signal.Computer program instructions (in other words, code) is stored in memory 902.Processor 801 is for executing the instruction stored in memory 802, when executed,
Transmitter 903 is used to send the first scheduling information to terminal device, first scheduling information is used for the transmission of base station scheduled multicast business datum, first scheduling information maps to the first search space or the second search space, and the first scheduling information maps to the first search space or the second search space；
Transmitter 903 is also used to send cast service data to terminal device.
It should be understood that in embodiments of the present invention, processor 901 may include the circuit of the audio/video and logic function for terminal device.For example, processor 901 may include digital signal processor device, microprocessor device, analog-digital converter, digital analog converter etc..Control and the signal processing function of mobile device can be distributed among these devices according to the respective ability of these equipment.Processor 901 can also include internal voice coder VC, internal data modem DM etc..In addition, processor may include the function of operating one or more software programs, the software program be can store in memory.Terminal device is set to execute movement in general, processor and the software instruction stored can be configured as.For example, processor can operate linker.
Memory 902 may include read-only memory and random access memory, and provide instruction and data to processor 901.The a part of of memory 902 can also include volatile memory and/or non-volatile Memory.For example, volatile memory may include random access memory ram comprising on dynamic ram and/or static state RAM, chip and/or outer cache memory of chip etc..Nonvolatile memory can be Embedded and/or removable, it may include such as read-only memory, flash memories, magnetic storage device, such as hard disk, floppy disk drive, tape etc., CD drive and/or medium, nonvolatile RAM NVRAM etc..Similar to volatile memory, nonvolatile memory may include the speed buffering region temporarily stored for data.At least part of volatibility and or nonvolatile memory can be embedded into processor.Memory can store one or more software programs, instruction, block of information, data etc., can be used to execute the function of mobile terminal by the terminal device.For example, memory may include the identifier for capableing of unique identification terminal device, such as international mobile equipment identity IMEI code.
In embodiments of the present invention, transceiver may include such as infrared transceiver, use transceiver, radio universal serial bus USB transceiver, Bluetooth transceiving.Bluetooth transceiving can be operated according to low-power consumption or super low-power consumption Bluetooth technology.Although not showing that, base station can send signal (or data) by transmitter according to various Wireless networking technologies, and/or signal (data) are received by receiver.These technologies include: Wi-Fi, Wi-Fi low-power consumption, WLAN technology, such as 802.11 technology of IEEE, IEEE802.15 technology, 802.16 technology of IEEE etc..
During realization, each step of the above method can be completed by the integrated logic circuit of the hardware in processor 901 or the instruction of software form.Hardware processor can be embodied directly in the step of the method for transmission data in conjunction with disclosed in the embodiment of the present invention and executes completion, or in processor hardware and software module combination execute completion.Software module can be located in the storage medium of this fields such as random access memory, flash memory, read-only memory, programmable read only memory or electrically erasable programmable memory, register maturation.The step of storage medium is located at memory 902, and processor 901 reads the information in memory 902, completes the above method in conjunction with its hardware.To avoid repeating, it is not detailed herein.
The function or aforesaid operations of base station 900 according to an embodiment of the present invention, the corresponding process executed in the method in order to realize the transmission data of the embodiment of the present invention by base station respectively.For sake of simplicity, details are not described herein again.
In embodiments of the present invention, base station by by the scheduling information of terminal device receiving multicast traffic data (i.e., first scheduling information) map to the first search space or the second search space, first scheduling information is sent to terminal device, terminal device is enabled to receive first scheduling information.It, being capable of receiving multicast traffic data to which terminal device is according to first scheduling information.
It should be understood that in various embodiments of the present invention, magnitude of the sequence numbers of the above procedures are not intended to Execution sequence it is successive, the execution of each process sequence should be determined by its function and internal logic, and the implementation process of the embodiments of the invention shall not be constituted with any limitation.
Those of ordinary skill in the art may be aware that, unit and algorithm steps described in conjunction with the examples disclosed in the embodiments of the present disclosure, it can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly illustrate the interchangeability of hardware and software, each exemplary composition and step are generally described according to function in the above description.These functions are implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Professional technician can use different methods to achieve the described function each specific application, but such implementation should not be considered as beyond the scope of the present invention.
It is apparent to those skilled in the art that for convenience of description and succinctly, system, the specific work process of device and unit of foregoing description can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods may be implemented in other ways.Such as, the apparatus embodiments described above are merely exemplary, such as, the division of the unit, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be combined or can be integrated into another system, or some features can be ignored or not executed.In addition, shown or discussed mutual coupling, direct-coupling or communication connection can be through some interfaces, the indirect coupling or communication connection of device or unit, be also possible to electricity, the connection of mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, and component shown as a unit may or may not be physical unit, it can and it is in one place, or may be distributed over multiple network units.It can select some or all of unit therein according to the actual needs to realize the purpose of the embodiment of the present invention.
In addition, the functional units in various embodiments of the present invention may be integrated into one processing unit, it is also possible to each unit and physically exists alone, is also possible to two or more units and is integrated in one unit.Above-mentioned integrated unit both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and when sold or used as an independent product, can store in a computer readable storage medium.Based on this understanding, substantially all or part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products technical solution of the present invention in other words, which is stored in In one storage medium, including some instructions are used so that a computer equipment (can be personal computer, server or the network equipment etc.) performs all or part of the steps of the method described in the various embodiments of the present invention.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), the various media that can store program code such as magnetic or disk.
It is described above; only a specific embodiment of the invention; but scope of protection of the present invention is not limited thereto; anyone skilled in the art is in the technical scope disclosed by the present invention; various equivalent modifications or substitutions can be readily occurred in, these modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.

Claims (36)

  1. A method of transmission data, which is characterized in that the described method includes:
    Terminal device receives the first scheduling information that base station is sent, first scheduling information is used for the transmission of the base station scheduled multicast business datum, first scheduling information maps to the first search space or the second search space, first search space is used to carry the control information for the terminal device for carrying common control information, second search space；
    The terminal device receives the cast service data that the base station is sent according to first scheduling information.
  2. The method according to claim 1, wherein the terminal device receives the first scheduling information that base station is sent, comprising:
    The terminal device receives the first control information that base station is sent, temporal information and/or frequency information are carried in the first control information, wherein, the temporal information is used to indicate the subframe for carrying first scheduling information, and the frequency information is used to indicate the base station and sends the frequency range used when first scheduling information；
    The terminal device determines the temporal information and/or frequency information；
    The terminal device receives the first scheduling information that the base station is sent according to the temporal information and/or frequency information.
  3. According to the method described in claim 2, include first time information in the first control information it is characterized in that, first scheduling information maps to first search space,
    The terminal device receives the first scheduling information that base station is sent, comprising:
    The terminal device monitors first search space in the subframe indicated by the first time information, receives first scheduling information that the base station is sent.
  4. According to the method described in claim 3, it is characterized in that, the terminal device is in connected state.
  5. The method according to claim 3 or 4, which is characterized in that it further include first frequency information in the first control information, the first frequency information is used to indicate the first frequency range,
    The terminal device receives the first scheduling information that base station is sent, comprising:
    The terminal device monitors first search space in first frequency range, receives first scheduling information that the base station is sent.
  6. According to the method described in claim 2, include the second temporal information in the first control information it is characterized in that, first scheduling information maps to the second search space,
    The terminal device receives the first scheduling information that base station is sent, comprising:
    The terminal device monitors second search space in the subframe indicated by second temporal information, receives first scheduling information that the base station is sent.
  7. According to the method described in claim 6, it is characterized in that, the terminal device is in Idle state.
  8. Method according to claim 6 or 7, which is characterized in that the first control information further includes second frequency information, and the second frequency information is used to indicate the second frequency range；
    The terminal device receives the first scheduling information that base station is sent, comprising:
    The terminal device monitors second search space in second frequency range, receives the first scheduling information that the base station is sent.
  9. The method according to any one of claim 2 to 8, which is characterized in that the terminal device receives the first control information that base station is sent, comprising:
    The terminal device receives the system message that the base station is sent, it include third temporal information in the system message, the third temporal information is used to indicate the subframe of the second scheduling information of carrying, second scheduling information dispatches the transmission of the first control information for the base station, and second scheduling information maps to the first search space；
    The terminal device determines subframe indicated by the third temporal information；
    The terminal device receives second scheduling information in the subframe indicated by the third temporal information；
    The terminal device receives the first control information according to second scheduling information.
  10. According to the method described in claim 9, the third frequency information is used to indicate the base station and sends the third frequency range used when second scheduling information it is characterized in that, further include third frequency information in the system message,
    The terminal device receives the second scheduling information that base station is sent, comprising:
    The terminal device determines the third frequency range；
    The terminal device receives second scheduling information that the base station is sent in the third frequency range.
  11. A method of transmission data, which is characterized in that the described method includes:
    Base station sends the first scheduling information to terminal device, first scheduling information is used for the transmission of the base station scheduled multicast business datum, first scheduling information maps to the first search space or the second search space, first search space is for carrying common control information, and second search space is for holding Carry the control information for being directed to the terminal device；
    The base station sends the cast service data to the terminal device.
  12. According to the method for claim 11, which is characterized in that the base station sends the first scheduling information to terminal device, comprising:
    The base station sends the first control information to the terminal device, the first control information controls the transmission of first scheduling information for the base station, it include temporal information and/or frequency information in the first control information, the temporal information is used to indicate the subframe for carrying first scheduling information, and the frequency information is used to indicate the base station and sends the frequency range used when first scheduling information；
    The base station sends first scheduling information according to the temporal information and/or frequency information, Xiang Suoshu terminal device.
  13. According to the method for claim 12, which is characterized in that first scheduling information maps to first search space, includes first time information in the first control information,
    The base station sends the first scheduling information to the terminal device, comprising:
    The base station sends first scheduling information to the terminal device in the subframe indicated by the first time information.
  14. Method according to claim 12 or 13, which is characterized in that it include first frequency information in the first control information, the first frequency information is used to indicate the first frequency range,
    The base station sends the first scheduling information to the terminal device, comprising:
    The base station sends first scheduling information to the terminal device in first frequency range.
  15. According to the method for claim 12, which is characterized in that first scheduling information maps to second search space, includes the second temporal information in the first control information,
    The base station sends the first scheduling information to the terminal device, comprising:
    The base station sends first scheduling information to the terminal device in the subframe indicated by second temporal information.
  16. According to the method for claim 15, which is characterized in that it further include second frequency information in the first control information, the second frequency information is used to indicate the second frequency range,
    The base station sends the first scheduling information to the terminal device, comprising:
    The base station sends first scheduling information to the terminal device in second frequency range.
  17. Method described in any one of 2 to 16 according to claim 1, which is characterized in that the base station sends the first control information to the terminal device, comprising:
    The base station sends system message to the terminal device, includes the third time in the system message Information, the third temporal information are used to indicate the subframe of the second scheduling information of carrying, and second scheduling information dispatches the transmission of the first control information for the base station, and second scheduling information maps to first search space；
    The base station sends the second scheduling information to the terminal device in the subframe indicated by the third temporal information according to the third temporal information；
    The base station sends the first control information to the terminal device.
  18. Method described in any one of 2 to 17 according to claim 1, which is characterized in that it include third frequency information in the system message, the third frequency information is used to indicate the base station and sends the third frequency range used when second scheduling information,
    The base station sends second scheduling information to the terminal device in the third frequency range according to the third frequency information.
  19. A kind of terminal device, which is characterized in that the terminal device includes:
    Receiving unit, for receiving the first scheduling information of base station transmission, first scheduling information is used for the transmission of the base station scheduled multicast business datum, first scheduling information maps to the first search space or the second search space, first search space is used to carry the control information for the terminal device for carrying common control information, second search space；
    The receiving unit is also used to receive the cast service data that the base station is sent according to first scheduling information.
  20. Terminal device according to claim 19, which is characterized in that the receiving unit is specifically used for:
    Receive the first control information that the base station is sent, temporal information and/or frequency information are carried in the first control information, the temporal information is used to indicate the subframe for carrying first scheduling information, and the frequency information is used to indicate the base station and sends the frequency range used when first scheduling information；
    And the terminal device further include:
    Processing unit, for determining the temporal information and/or frequency information；
    The processing unit is specifically also used to receive the first scheduling information that the base station is sent according to the temporal information and/or frequency information.
  21. Terminal device according to claim 20, which is characterized in that first scheduling information maps to first search space, includes first time information in the first control information,
    And the receiving unit is specifically used for, and first search space is monitored in the subframe indicated by the first time information, receives first scheduling information that the base station is sent.
  22. Terminal device according to claim 21, which is characterized in that the terminal device is in connected state.
  23. The terminal device according to claim 21 or 22, which is characterized in that it include first frequency information in the first control information, the first frequency information is used to indicate the first frequency range,
    And the receiving unit is specifically used for, and first search space is monitored in first frequency range, receives first scheduling information that the base station is sent.
  24. The terminal device according to claim 20, which is characterized in that first scheduling information maps to the second search space, includes the second temporal information in the first control information,
    And the receiving unit is specifically used for, and second search space is monitored in the subframe indicated by second temporal information, receives first scheduling information that the base station is sent.
  25. Terminal device according to claim 24, which is characterized in that the terminal device is in Idle state.
  26. The terminal device according to claim 24 or 25, which is characterized in that the first control information includes second frequency information, and the second frequency information is used to indicate the second frequency range；
    And the terminal device is specifically used for, and second search space is monitored in second frequency range, receives the first scheduling information that the base station is sent.
  27. The terminal device according to any one of claim 20 to 26, which is characterized in that the receiving unit is specifically used for:
    Receive the system message that the base station is sent, it include third temporal information in the system message, the third temporal information is used to indicate the subframe of the second scheduling information of carrying, second scheduling information dispatches the transmission of the first control information for the base station, and second scheduling information maps to the first search space；
    The processing unit is also used to determine subframe indicated by the third temporal information；
    The receiving unit is specifically used for receiving second scheduling information in the subframe indicated by the third temporal information；
    According to second scheduling information, the first control information is received.
  28. Terminal device according to claim 27, which is characterized in that it further include third frequency information in the system message, the third frequency information is used to indicate the base station and sends the third frequency range used when second scheduling information,
    And the processing unit is also used to determine the third frequency range；
    And the receiving unit is specifically used for, and receives what the base station was sent in the third frequency range Second scheduling information.
  29. A kind of base station, which is characterized in that the base station includes:
    Transmission unit, for sending the first scheduling information to terminal device, first scheduling information is used for the transmission of the base station scheduled multicast business datum, first scheduling information maps to the first search space or the second search space, first search space is used to carry the control information for the terminal device for carrying common control information, second search space；
    The transmission unit is also used to send cast service data to the terminal device.
  30. Base station according to claim 29, which is characterized in that the transmission unit is specifically used for:
    The first control information is sent to the terminal device, the first control information controls the transmission of first scheduling information for the base station, it include temporal information and/or frequency information in the first control information, the temporal information is used to indicate the subframe for carrying first scheduling information, and the frequency information is used to indicate the base station and sends the frequency range used when first scheduling information；
    And the base station further include:
    Processing unit, for determining the temporal information and/or frequency information；
    And the transmission unit is specifically used for according to the temporal information and/or frequency information, Xiang Suoshu terminal device sends first scheduling information.
  31. Base station according to claim 30, which is characterized in that first scheduling information maps to first search space, includes first time information in the first control information,
    And the transmission unit is specifically used for, and sends first scheduling information to the terminal device in the subframe indicated by the first time information.
  32. The base station according to claim 30 or 31, which is characterized in that it include first frequency information in the first control information, the first frequency information is used to indicate the first frequency range,
    And the transmission unit is specifically used for, and sends first scheduling information to the terminal device in first frequency range.
  33. Base station according to claim 30, which is characterized in that first scheduling information maps to second search space, includes the second temporal information in the first control information,
    And the transmission unit is specifically used for, and sends first scheduling information to the terminal device in the subframe indicated by second temporal information.
  34. Base station according to claim 33, which is characterized in that it further include second frequency information in the first control information, the second frequency information is used to indicate the second frequency range,
    And the transmission unit is specifically used for, and sends first scheduling information to the terminal device in second frequency range.
  35. The base station according to any one of claim 30 to 34, which is characterized in that the transmission unit is specifically used for:
    System message is sent to the terminal device, it include third temporal information in the system message, the third temporal information is used to indicate the subframe of the second scheduling information of carrying, second scheduling information dispatches the transmission of the first control information for the base station, and second scheduling information maps to first search space；
    And the processing unit is also used to determine the third temporal information；
    And the transmission unit is specifically used for sending the second scheduling information to the terminal device in the subframe indicated by the third temporal information according to the third temporal information；
    The first control information is sent to the terminal device.
  36. The base station according to any one of claim 30 to 35, which is characterized in that it include third frequency information in the system message, the third frequency information is used to indicate the base station and sends the third frequency range used when second scheduling information,
    And the processing unit is also used to determine the third frequency range；
    And the transmission unit is specifically used for, and sends the second scheduling information to the terminal device in the third frequency range.
CN201680088698.4A 2016-08-25 2016-08-25 Transmit method, terminal device and the base station of data Pending CN109644322A (en)

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