CN109644475A - Data transmission method, device and system - Google Patents
Data transmission method, device and system Download PDFInfo
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- CN109644475A CN109644475A CN201680088151.4A CN201680088151A CN109644475A CN 109644475 A CN109644475 A CN 109644475A CN 201680088151 A CN201680088151 A CN 201680088151A CN 109644475 A CN109644475 A CN 109644475A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
Abstract
The invention discloses data transmission methods, device and system.Data transmission method includes that base station indicates whether the terminal device in light connection status needs to be implemented uplink synchronous.When the base station needs the terminal device to described in light connection status to send downlink data, the base station sends scheduling information to the terminal device, wherein, the scheduling information carries the mark that the base station is terminal device distribution, and the mark identifies the scheduling information for the terminal device.The base station sends the downlink data to the terminal device by the resource that the scheduling information indicates.The base station receives the feedback information that the terminal device in uplink sync status is sent, wherein the feedback information reflects the reception condition of the downlink data.It is thus possible to guarantee that the terminal device receives the downlink data that the base station is sent in time, Internet resources, the efficiency of improve data transfer are saved.
Description
The present invention relates to wireless communication technique more particularly to a kind of data transmission methods, device and system.
In a network, terminal device state in which generally includes wireless heterogeneous networks (Radio Resource Control, RRC) connected state and idle (Idle) state.RRC connection is established between terminal device and base station in connected state, can send data.And do not connected between the terminal device and base station in Idle state, data cannot be sent.Terminal device in Idle state can establish RRC to base station and connect and obtain context relevant with configuration is connect, and realize data transmission into connected state.Terminal device in connected state can also discharge RRC and connect and remove context, hence into Idle state.
Third generation partner program (3rd Generation Partnership Project, 3GPP) is discussing light connection (Light Connection) state.Terminal device can enter light connection status under the instruction of base station.The light connection status is a kind of state between connected state and Idle state.The context of the terminal device is saved into the terminal device of light connection status and the base station.Also, the base station is that the terminal device distributes a connection recovery mark.When the terminal device needs to restore normal RRC connected state with the base station, the terminal device is sent to the base station carries the request message that the connection restores mark.The base station restores the terminal device that mark determines initiation RRC connection recovery request according to the connection, and is connect using the context recovery saved with the RRC of the terminal device.
Terminal device in light connection status receives downlink data generally by RRC connection is restored to realize.When base station has downlink data to need to send, paging (paging) can be triggered, after the terminal device listens to the paging for oneself, triggers RRC connection recovery process, is followed by receiving downlink data restoring connected state.In above process, terminal device persistently monitors the paging from base station, and needs first to restore RRC connection before receiving downlink data, reduces data transmission efficiency.
Summary of the invention
The present invention provides a kind of data transmission methods, device and system, and terminal device can be enabled to complete the reception of downlink data, improve data transfer efficiency in time in light connection status.
On the one hand, the embodiment of the present invention provides a kind of data transmission method.Whether the method includes base station instructions needs to be implemented uplink synchronous in the terminal device of light connection status.When the base station needs the terminal device to described in light connection status to send downlink data, the base station sends scheduling information to the terminal device, wherein the scheduling information carries the mark that the base station is terminal device distribution.The mark identifies the scheduling information for the terminal device.The base station sends the downlink data to the terminal device by the resource that the scheduling information indicates.The base station receives the feedback information that the terminal device in uplink sync status is sent, wherein the feedback information reflects the reception condition of the downlink data.The method provided through this embodiment, terminal device can complete the reception of downlink data, improve data transfer efficiency in light connection status in time.
It further include that the base station indicates that the terminal device enters light connection status before the base station sends scheduling information to the terminal device in a possible design.
It further include that the base station receives the leader sequence code for being moved to the terminal device transmission of the serving cell of the base station before the base station sends scheduling information to the terminal device in a possible design.The base station sends random access response to the terminal device, wherein the random access response includes the mark that the base station is terminal device distribution.
In a possible design, the base station by broadcast message or indicates whether the terminal device needs to be implemented uplink synchronous with making an appointment for the terminal device.
In a possible design, the mark includes group mark and Terminal Equipment Identifier, wherein, described group of mark is for the terminal device group where terminal device described in unique identification, and the Terminal Equipment Identifier is used for the terminal device described in unique identification in described group.
In a possible design, it includes that the base station scrambles the Physical Downlink Control Channel for sending the scheduling information using described group of mark that the scheduling information, which carries the mark that the base station is terminal device distribution, it wherein, include the Terminal Equipment Identifier in the scheduling information.
In a possible design, if the base station indicates that the terminal device needs to be implemented uplink synchronous, it further include that the base station receives the leader sequence code that the terminal device is sent then before the feedback information that the base station receives that the terminal device in uplink sync status is sent.The base station sends random access response to the terminal device, wherein the random access response includes the ascending resource that the base station is terminal device distribution.Wherein, the feedback information is that the terminal device is transmitted by the ascending resource.
On the other hand, the embodiment of the present invention provides a kind of data transmission method.The method includes terminal devices to determine that under light connected state whether to need to be implemented uplink same according to the instruction of base station
Step, and perform corresponding processing.The terminal device in light connection status receives the scheduling information that the base station is sent, wherein the scheduling information carries the mark that the base station is terminal device distribution, and the mark identifies the scheduling information for the terminal device.The terminal device receives the downlink data that the base station is sent by the resource that the scheduling information indicates.The terminal device in uplink sync status sends feedback information to the base station, wherein the feedback information reflects the reception condition of the downlink data.The method provided through this embodiment, terminal device can complete the reception of downlink data, improve data transfer efficiency in light connection status in time.
It further include that the terminal device enters light connection status under the instruction of the base station before the scheduling information that the terminal device receives that the base station is sent in a possible design.
It further include that the terminal device sends leader sequence code to the base station after the serving cell for being moved to the base station before the scheduling information that the terminal device in light connection status receives that the base station is sent in a possible design.The terminal device receives the random access response that the base station is sent, wherein the random access response includes the mark that the base station is terminal device distribution.
In a possible design, the terminal device is by receiving broadcast message or determining whether need to be implemented uplink synchronous under light connection status with making an appointment for the base station.
In a possible design, the mark includes group mark and Terminal Equipment Identifier, wherein, described group of mark is for the terminal device group where terminal device described in unique identification, and the Terminal Equipment Identifier is used for the terminal device described in unique identification in described group.
In a possible design, described in the terminal device reception in light connection status
The scheduling information that base station is sent includes that the terminal device descrambles the physical down channel for sending the scheduling information using described group of mark.The terminal device decodes the scheduling information, wherein includes the Terminal Equipment Identifier in the scheduling information.
In a possible design, if the terminal device determination needs to be implemented uplink synchronous, it then performs corresponding processing including before the terminal device in uplink sync status sends feedback information to the base station, the terminal device sends leader sequence code to the base station.The terminal device receives the random access response that the base station is sent, wherein the random access response includes the ascending resource that the base station is terminal device distribution.Wherein, the feedback information is that the terminal device is transmitted by the ascending resource.
Another aspect, the embodiment of the present invention provide a kind of base station, and the base station executes data transmission method described in above-mentioned aspect.The base station includes processing unit, transmission unit and receiving unit.The processing unit is used to indicate whether the terminal device in light connection status needs to be implemented uplink synchronous.The transmission unit is used for when needing the terminal device to described in light connection status to send downlink data, scheduling information is sent to the terminal device, wherein, the scheduling information carries the mark that the processing unit is terminal device distribution, and the mark identifies the scheduling information for the terminal device.The resource that the transmission unit is also used to indicate by the scheduling information sends the downlink data to the terminal device.The receiving unit is used to receive the feedback information that the terminal device in uplink sync status is sent, wherein the feedback information reflects the reception condition of the downlink data.
In a possible design, the base station can pass through the function of base station behavior in the hardware realization above method.It may include processor, receiver and transmitter in the structure of the base station, the function of the processing unit, receiving unit, transmission unit may be implemented respectively.
In a possible design, the base station can also execute the function of base station behavior in the corresponding software realization above method by hardware.The hardware or software include one or more modules corresponding with above-mentioned function.The module can be software and/or hardware.
Another aspect, the embodiment of the present invention provide a kind of terminal device, and the terminal device executes data transmission method described in above-mentioned aspect.The terminal device includes processing unit, receiving unit and transmission unit.The processing unit is used to whether need to be implemented uplink synchronous under light connection status according to the instruction of base station determination, and performs corresponding processing.The receiving unit is used to receive the scheduling information that the base station is sent, wherein the scheduling information carries the mark that the base station is terminal device distribution.The mark identifies the scheduling information for the terminal device.The receiving unit is also used to receive the downlink data that the base station is sent by the resource that the scheduling information indicates.The transmission unit is used to send feedback information to the base station when the terminal device is in uplink sync status, wherein the feedback information reflects the reception condition of the downlink data.
In a possible design, the terminal device can pass through the function of terminal device behavior in the hardware realization above method.It may include processor, receiver and transmitter in the structure of the terminal device, can realize the function of the processing unit, receiving unit and transmission unit respectively.
In a possible design, the terminal device can also execute the function of terminal device behavior in the corresponding software realization above method by hardware.The hardware or software include one or more modules corresponding with above-mentioned function.The module can be software and/or hardware.
Another aspect, the embodiment of the invention provides a kind of communication system, the communication system includes base station described in above-mentioned aspect and terminal device.
In another aspect, for being stored as computer software instructions used in above-mentioned terminal device, it includes for executing program designed by above-mentioned aspect the embodiment of the invention provides a kind of computer storage medium.
In another aspect, for being stored as computer software instructions used in above-mentioned base station, it includes for executing program designed by above-mentioned aspect the embodiment of the invention provides a kind of computer storage medium.
The technical solution provided according to embodiments of the present invention, the base station send downlink data to the terminal device in light connection status by way of scheduling.The terminal device sends feedback information after determining the need for executing uplink synchronous.Thereby it is ensured that terminal device in light connection status can receive downlink data in time, the efficiency of data transmission is improved.
In order to illustrate the technical solution of the embodiments of the present invention more clearly, the accompanying drawings required for describing the embodiments of the present invention are briefly described below.It should be evident that drawings described below is only some embodiments of the present invention, for those of ordinary skill in the art, in reasonable range, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of schematic diagram of communication system provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of data transmission method provided by one embodiment of the present invention；
Fig. 3 is the schematic diagram for the data transmission method that another embodiment of the present invention provides；
Fig. 4 is a kind of possible structural schematic diagram of base station provided by one embodiment of the present invention；
Fig. 5 is a kind of possible structural schematic diagram for the base station that another embodiment of the present invention provides；
Fig. 6 is a kind of possible structural schematic diagram of terminal device provided by one embodiment of the present invention；
Fig. 7 is a kind of possible structural schematic diagram for the terminal device that another embodiment of the present invention provides.
Below in conjunction with attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.Obviously, described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.It is appreciated that under the premise of will not produce ambiguity or is contradictory, those of ordinary skill in the art by by the technical characteristic in embodiment or between embodiment in conjunction with and the other embodiments that obtain, also belong to the scope of protection of the invention.
The technical solution that the embodiment of the present invention is proposed is based on communication system 100 as shown in Figure 1.The communication system 100 includes at least two base stations (base station, BS) and at least one terminal device.Wherein, each base station services at least one cell.The terminal device provides the moving between cells of service in the base station.
The terminal device that wireless heterogeneous networks (Radio Resource Control, RRC) connection is kept with base station, can enter light connection status under the instruction of the base station.The light connection status can be the sub- state of connected state, is also possible to the enhanced situation of idle (Idle) state, can also be independent state.The light connection status can also be referred to as inactive state, deactivated state, low Mobile Forms, low overhead state etc..The embodiment of the present invention is not specifically limited the form and title of the light connection status.The terminal device in light connection status saves context relevant to connection configuration, and executes the mobility based on cell reselection.
The base station and the terminal device for entering light connection status save the context of the terminal device.The context may include the connection configuration parameter between the base station and the terminal device.Specifically, the connection configuration parameter may include the radio bearer configuration of the terminal device, wherein the radio bearer configuration includes Signaling Radio Bearer configuration and/or Data Radio Bearer configuration.The context can also include key information, and the key information is used for when carrying out encrypted transmission or uses when generating terminal device verification information.
Into light connection status the terminal device when changing resident cell, do not need the base station and make switching instruction, but resident cell is voluntarily determined based on cell reselection criterion.For example, can choose and reside in the cell when terminal device measures that a signal quality is more preferable or intensity higher cell.The terminal device provides data transport service by the serving BS of the cell in the resident cell.
In communication system 100 as shown in Figure 1, for example including base station 10,11 and terminal device 20.The base station 10 is the serving BS of cell A.The base station 11 is the serving BS of cell B.It is appreciated that the base station 10 and the base station 11 can service more cells, and it is not limited to cell A and cell B.The terminal device 20 enters light connection status under the instruction of base station 10.Hereafter, the terminal device 20 is potentially based on cell reselection and is moved to cell B.In cell B, the terminal device provides data transport service by the base station 11.
In the embodiment of the present invention, the communication system 100 can be global system for mobile telecommunications (Global System of Mobile communication, GSM) system, CDMA (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 (Universal Mobile Telecommunication System,) and the wireless communication system etc. of other application orthogonal frequency (OFDM) technology UMTS.In addition, the communication system 100 can be applicable to the communication technology to face the future.The system architecture and business scenario of description of the embodiment of the present invention are the technical solutions in order to more clearly illustrate the embodiment of the present invention, the restriction for technical solution provided in an embodiment of the present invention is not constituted, known to those of ordinary skill in the art, with the differentiation of the network architecture and the appearance of new business scene, technical solution provided in an embodiment of the present invention is equally applicable for similar technical problem.
In the embodiment of the present invention, terminal device 20 is alternatively referred to as user equipment (User Equipment, UE), mobile station (Mobile Station, MS), mobile terminal (Mobile Terminal) etc., the terminal device can be communicated through wireless access network (Radio Access Network, RAN) with one or more core nets.Such as, terminal device can be mobile phone (or being " honeycomb " phone), computer with mobile terminal etc., can also be portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device, they exchange language and/or data with wireless access network.The embodiment of the present invention is not especially limited terminal device.
In the embodiment of the present invention, base station 10,11 can be base station (the Base Transceiver Station in GSM or CDMA, BTS), base station (the NodeB being also possible in WCDMA, NB), it can also be the evolved base station (Evolutional Node B, eNB or e-NodeB) in LTE, and can be corresponding next generation base station (next in 5G network
Generation Node B, gNB).For convenience of description, base station is not especially limited in all embodiments of the invention, the above-mentioned device for providing wireless communication function for terminal device is referred to as base station.
It should be noted that the quantity of base station included in communication system 100 shown in FIG. 1 and terminal device is only that one kind enumerates, the embodiment of the present invention is also not restricted to this.For example, it is also possible to, for concise purpose, not described one by one in the accompanying drawings comprising more base stations and the terminal device communicated with base station.Furthermore, in communication system 100 as shown in Figure 1, although showing base station 10,11 and terminal device 20, but the communication system 100 can be not limited to include the base station and terminal device, such as can also include equipment of the core network or the equipment etc. for carrying virtualization network function, it is not described in detail one by one herein.
It should be noted that in embodiments of the present invention, the terminal device is moved in resource distribution region or between resource distribution region.The resource distribution region includes to provide at least one cell of service by least one base station.The terminal device configures identical parameter when moving in the resource distribution region.The parameter is transmitted by X2 interface or S1 interface between base station in the resource distribution region.Wherein, the parameter includes the RRC of the terminal device, Packet Data Convergence Protocol (Packet Data Convergence Protocol, PDCP), radio link layer control protocol (Radio Link Control, RLC), at least one of media access control (Media Access Control, MAC) and physical layer parameter.For example, cell A shown in Fig. 1 and cell B may belong to identical resource distribution region, the terminal device is moved to after cell B from cell A and does not need to reconfigure parameter, saves Internet resources.Cell A and cell B also may belong to different resource distribution regions, then the terminal device needs to reconfigure parameter after being moved to cell B.
Fig. 2 shows the schematic diagrames of data transmission method provided by one embodiment of the present invention.Below with reference to Fig. 2, method provided in this embodiment is described in detail from interactive angle.
Whether S201, base station instruction need to be implemented uplink synchronous in the terminal device of light connection status.
The terminal device is determined by the instruction of the base station when the terminal device has uplink demand, if need to first carry out uplink synchronous in the serving cell of the base station.
Specifically, the terminal device can pass through the broadcast message in the serving cell of the reception base station, it is determined whether need to be implemented uplink synchronous.
The terminal device can also be by determining the need for executing uplink synchronous with making an appointment for the base station.For example, the base station indicates whether the terminal device needs to first carry out uplink synchronous when there is uplink demand when for the terminal equipment configuration parameter.
S202, the base station indicate that the terminal device enters light connection status.
Specifically, the terminal device can receive the control information into light connection status that the base station is sent, to enter light connection status by RRC connected state.
It should be noted that being not particularly limited in the present embodiment to the timing between step S202 and S201.For example, the base station can be before the terminal device enters light connection status, whether instruction needs to execute uplink synchronous before uplink when the terminal device is in light connection status.The base station can also indicate whether the terminal device needs to execute uplink synchronous before uplink when indicating that the terminal device enters light connection status together.The base station can also indicate whether the terminal device needs to execute uplink synchronous before uplink after the terminal device enters light connection status.
S203, under the base station needs to send to the terminal device in light connection status
When row data, the base station sends scheduling information to the terminal device.
Wherein, the scheduling information carries the mark that the base station is terminal device distribution, and the mark identifies the scheduling information for the terminal device.
It should be noted that the mark dispatches the terminal device for the base station.The effect of the mark and the effect that the connection that the base station is the terminal device distribution in light connection status restores mark be not identical.
The scheduling information may include the instruction information for the downlink resource that the base station is the downlink data distribution for needing to send to the terminal device.The scheduling information can also include the coding of the downlink data and the instruction information of modulation system.
Optionally, the mark is the terminal device when establishing RRC with the base station and connecting, and the mark of the terminal device is distributed to by the base station.That is, the mark that the base station after the terminal device enters light connection status, continues to use the base station when the terminal device is in RRC connected state for terminal device distribution dispatches the terminal device.
The mark is also possible to the mark that the base station is redistributed when indicating that the terminal device enters light connection status for the terminal device.
Mark terminal device described in unique identification in resource distribution region.The mark can be an independent continuation character string.The base station is the unique mark of each terminal device distribution in resource distribution region.
The mark can be radio network temporary identifier (Radio Network Tempory Identity, RNTI), such as Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (Cell RNTI, C-RNTI).
The mark also may include group mark and a Terminal Equipment Identifier.Described group of mark for
A terminal device group in the resource distribution region where terminal device described in unique identification.The Terminal Equipment Identifier is used for the terminal device described in unique identification in described group.In this way, the base station can effectively save Internet resources by group mark one terminal device group of scheduling.
Optionally, the mark is included in the scheduling information and is sent to the terminal device by the base station.
Optionally, the base station scrambles the Physical Downlink Control Channel (Physical Downlink Control Channel, PDCCH) for sending the scheduling information using the mark.
When the mark is made of group mark and Terminal Equipment Identifier, the base station can be used described group of mark and scramble to the PDCCH for sending the scheduling information, and the Terminal Equipment Identifier is carried in the protocol Data Unit (Protocol Data Unit, PDU) of the scheduling information.
PDCCH is scrambled by using the mark, the length of scheduling information can be shortened, saves network transmission resource.
It should be noted that the present embodiment is not specifically limited the timing between step S201 and step S203 after the terminal device enters light connection status.
Optionally, the base station indicates whether the terminal device needs to first carry out uplink synchronous when there is uplink demand before sending scheduling information to the terminal device.The base station only can indicate the terminal device before sending first time scheduling information.The base station can also all indicate the terminal device before sending scheduling information every time.
The base station can also indicate whether the terminal device needs to first carry out uplink synchronous when there is uplink demand after sending scheduling information to the terminal device.
S204, the base station send the downlink data to the terminal device by the resource that the scheduling information indicates.
S205, the terminal device receives the downlink data that the base station is sent by the resource that the scheduling information indicates, and sends feedback information to the base station when being in uplink sync status.Wherein, the feedback information reflects the terminal device to the reception condition of the downlink data.
Optionally, the terminal device decodes the scheduling information.If the mark distributed in the scheduling information comprising the base station for the terminal device, the terminal device receive the downlink data in the resource indicated by the scheduling information.The terminal device uses the coding and modulation system of the downlink data indicated by the scheduling information, to the downlink data demodulating and decoding.
Optionally, the terminal device descrambles PDCCH using the mark, obtains the scheduling information.The terminal device receives the downlink data in the resource indicated by the scheduling information, and using the coding and modulation system of the downlink data indicated by the scheduling information, to the downlink data demodulating and decoding.
When the mark is made of group mark and Terminal Equipment Identifier, the terminal device can descramble PDCCH using described group of mark, so that it is determined that the base station scheduled the terminal device group where the terminal device.The terminal device decodes the scheduling information.If the terminal device obtains the Terminal Equipment Identifier in the PDU of the scheduling information, the terminal device further obtains the coding and modulation system of the resource and the downlink data that receive downlink data.
The terminal device receives lower line number by the scheduling information that the base station is sent as a result,
According to the terminal device does not need to restore RRC connection again in this process, and may remain in light connection status.
For the terminal device after downlink data described in demodulating and decoding, whether determination executes uplink synchronous before sending feedback information.
Optionally, the terminal device, which determines, is in uplink sync status.It does not need to execute uplink synchronous before sending feedback information alternatively, the terminal device is determined.At this point, the terminal device physically row control channel (Physical Uplink Control Channel, PUCCH) can send the feedback information.
Optionally, the terminal device, which determines, is in uplink loss state.Alternatively, the terminal device determination needs to be implemented uplink synchronous before sending feedback information.At this point, the terminal device is after executing uplink synchronous by random access procedure and sends feedback information.The process specifically includes:
SS21, the terminal device send leader sequence (preamble) code to the base station.
SS22, the base station receives the preamble code that the terminal device is sent, and sends random access response (Random Access Response, RAR) to the terminal device, wherein, the RAR includes the ascending resource that the base station is terminal device distribution.
Through the above steps, the terminal device completes uplink synchronous.Hereafter, the terminal device sends the feedback information to the base station by the ascending resource that the base station is distributed in the RAR.
Optionally, the feedback information includes hybrid automatic repeat-request (Hybrid Automatic Repeat reQuest, HARQ) feedback information.The HARQ feedback information includes to feed back (ACKnowledgement, ACK) or negative feedback (Negative certainly
ACKnowledgement, NACK).
The feedback information can also restore mark comprising the connection of the terminal device.The connection restores mark for making the base station determine the feedback information from which terminal device.
The data transmission method provided through the embodiment of the present invention, after entering light connection status under instruction of the terminal device in the base station, no longer paging of the monitoring from the base station, but be scheduled by the base station.When the base station needs to send downlink data to terminal device, the base station sends scheduling information to the terminal device, whether the terminal device receives the downlink data in the resource that the scheduling information indicates, and according to the base station for executing the instruction of uplink synchronous and sending feedback information to the base station.Thus, it is possible to which the terminal device in light connection status is enabled to receive downlink data, the efficiency of improve data transfer in time.
Fig. 3 shows the schematic diagram of the data transmission method of another embodiment of the present invention offer.Below with reference to Fig. 3, method provided in this embodiment is described in detail from interactive angle.
S301, base station are to be moved to the terminal device of the serving cell of the base station to distribute and send mark.Wherein, the terminal device is in light connection status.
Specifically, the terminal device in the serving cell of source base station, enters light connection status under the instruction of the source base station, and execute the mobility based on cell reselection.Hereafter, the terminal device is moved to the serving cell of the base station.The base station is target BS, and the terminal device resides in the serving cell of the target BS.The serving cell of the source base station belongs to different resource distribution regions from the serving cell of the target BS.Such as shown in Fig. 1, terminal device 20 is moved to cell B by cell A.
The terminal device is updated after the serving cell for being moved to the target BS by random access procedure trigger position.The location updating is to be matched in the terminal device by a resource
It sets region and is moved to and trigger when another resource distribution region.In the present embodiment, terminal device trigger position when being moved to the serving cell of the target BS from the serving cell of source base station updates.In the position updating process, the target BS is that the terminal device distributes the mark.The mark is different from the mark that the source base station is terminal device distribution.It is specifically included by random access procedure trigger position update:
SS31, the base station receive the preamble code that the terminal device is sent.
SS32, the base station receives the preamble code that the terminal device is sent, and sends RAR to the terminal device.
It wherein, is the mark of terminal device distribution comprising the base station in the RAR.Hereafter, when the base station has downlink data to send demand, the terminal device is dispatched using the mark in the base station.
It can also be the ascending resource of terminal device distribution comprising the base station in the RAR.The terminal device can also send connection recovery mark to the base station by the ascending resource and location updating identifies.Wherein, the connection restores mark for making the base station determination be the serving cell which terminal device is moved to the base station.The location updating mark has indicative function, changes for the resource distribution region where reporting the terminal device to the base station.
By the above process, the terminal device accesses the cell of the base station service in time and obtains the mark of the base station distribution, to can dispatch the terminal device in time when there is downlink data transmission in the base station.
Whether S302, the base station instruction need to be implemented uplink synchronous in the terminal device of light connection status.
Optionally, the terminal device in light connection status receives the broadcast message in the cell after the serving cell for being moved to the base station, so that it is determined that when there is upstream data to send demand, if need to first carry out uplink synchronous.
Optionally, the terminal device is after the serving cell for being moved to the base station, and since the cell of base station service and the cell of the source base station service belong to different resource distribution regions, the base station needs to reconfigure parameter for the terminal device.The base station can indicate whether the terminal device needs having upstream data to first carry out uplink synchronous when sending demand when reconfiguring parameter for the terminal device.
S303, when the base station needs to send downlink data to the terminal device in light connection status, the base station sends scheduling information to the terminal device.
Wherein, the scheduling information carries the mark that the base station is terminal device distribution, and the mark identifies the scheduling information for the terminal device.
It should be noted that the sequential relationship between step S302 and S303 is identical as the sequential relationship between step S201 and step S203, and which is not described herein again in the present embodiment.
S304, the base station send the downlink data to the terminal device by the resource that the scheduling information indicates.
S305, the terminal device receives the downlink data that the base station is sent by the resource that the scheduling information indicates, and sends feedback information to the base station when being in uplink sync status.Wherein, the feedback information reflects the terminal device to the reception condition of the downlink data.The terminal device receives downlink data by the scheduling information that the base station is sent as a result, and the terminal device does not need to restore RRC connection again in this process, and may remain in light connection status.
Identical as step S205, for the terminal device after downlink data described in demodulating and decoding, whether determination needs to be implemented uplink synchronous before sending feedback information.Detailed process is no longer described in detail one by one here as shown in step S205.
The data transmission method provided through the embodiment of the present invention, the terminal device in light connection status is after the serving cell for being moved to the base station, monitor the scheduling from the base station, the downlink data is received according to the scheduling information of the base station, and according to the base station for whether executing the instruction of uplink synchronous and sending feedback information to the base station.Thus, it is possible to which the terminal device in light connection status is enabled to receive downlink data, the efficiency of improve data transfer in time.
It is above-mentioned that mainly dispatching method provided in an embodiment of the present invention is described from the angle of interaction between each network element.It is understood that each network element, such as terminal device, base station etc. are in order to realize the above functions, contain and execute the corresponding hardware configuration of each function and/or software module.Those skilled in the art should be readily appreciated that, unit and algorithm steps described in conjunction with the examples disclosed in the embodiments of the present disclosure, and the present invention can be realized with the combining form of hardware or hardware and computer software.Some function is executed in a manner of hardware or computer software driving hardware actually, specific application and design constraint depending on technical solution.Professional technician can specifically realize described function to each using distinct methods, but such implementation should not be considered as beyond the scope of the present invention.
Fig. 4 shows a kind of possible structural schematic diagram of base station involved in above-described embodiment.The base station can be base station 10,11 as shown in Figure 1.The base station includes processing unit 401, transmission unit 402 and receiving unit 403.
The processing unit 401 is used to indicate whether the terminal device in light connection status needs
Execute uplink synchronous.
The transmission unit 402 is used for when needing the terminal device to described in light connection status to send downlink data, and Xiang Suoshu terminal device sends scheduling information.Wherein, the scheduling information carries the mark that the processing unit is terminal device distribution.The mark identifies the scheduling information for the terminal device.
The resource that the transmission unit 402 is also used to indicate by the scheduling information sends the downlink data to the terminal device.
The receiving unit 403 is used to receive the feedback information that the terminal device in uplink sync status is sent.Wherein, the feedback information reflects the reception condition of the downlink data.
Optionally, the transmission unit 403 is also used to send broadcast message under the control of the processing unit 401.The terminal device determines whether first carry out uplink synchronous when needing uplink by the broadcast message.
Optionally, the processing unit 401 is also used to make an appointment according to the terminal device, indicates whether the terminal device first carries out uplink synchronous when needing uplink.For example, the processing unit 401 indicates whether the terminal device needs to first carry out uplink synchronous when there is uplink demand when for the terminal equipment configuration parameter.
The transmission unit 402 is also used to send the control information for indicating that the terminal device enters light connection status to the terminal device.
Optionally, the processing unit 401 is also used to be moved to the mark that the terminal device of the serving cell of the base station distributes scheduling information for identification.The specific form of the mark is no longer specifically described in detail here as described in step S203.
The processing unit 401 can be also used for carrying the mark in the scheduling information
In, or using the mark to the PDCCH scrambling for sending the scheduling information.
When the mark is made of group mark and Terminal Equipment Identifier, the processing unit 401 can be also used for scrambling the PDCCH for sending the scheduling information using described group of mark, and the Terminal Equipment Identifier is carried in the PDU of the scheduling information.
Optionally, if the terminal device is in uplink sync status, or the processing unit 401 indicates that the terminal device does not need to execute uplink synchronous before sending feedback information, then the transmission unit 402 is also used to receive the terminal device feedback information that physically row control channel is sent.
If the terminal device is in uplink loss state or the processing unit 401 indicates that the terminal device needs to be implemented uplink synchronous before sending feedback information: the receiving unit 403 is also used to receive the preamble code that the terminal device is sent.The transmission unit 402 is also used to send RAR to the terminal device, wherein the RAR includes the ascending resource that the base station is terminal device distribution.The receiving unit 403 is for receiving the feedback information that the terminal device is sent by the ascending resource.
In the content that the feedback information may include method as shown in Figure 2 described in step S205 like that, it is no longer described in detail one by one here.
Optionally, the processing unit 401 is also used to distribute the mark when the terminal device is moved to the serving cell of the base station for the terminal device.Specifically include: the receiving unit 403 is also used to receive the preamble code that the terminal device is sent.The transmission unit 402 is also used to send RAR to the terminal device, wherein the RAR includes the mark.The RAR can also be the ascending resource of terminal device distribution comprising the processing unit 401.The receiving unit 403 is also used to receive the terminal device and passes through on described
The connection that row resource is sent restores mark and area update mark.
Other achievable functions that the above each unit does not describe to the greatest extent, it is identical as the correlation function of base station involved in data transmission method shown in Fig. 2,3, it is no longer described in detail one by one here.By the coordinated between above-mentioned each unit, the terminal device in light connection status can be enabled to complete the reception of downlink data in time, improve the efficiency of data transmission.
The function of each unit in base station described above can also execute corresponding software by hardware to realize by hardware realization.For example, above-mentioned each unit can be the hardware execute with every module, it is also possible to be able to carry out other hardware devices of corresponding computer program to complete above-mentioned various functions.
Fig. 5 shows a kind of possible structural schematic diagram of base station involved in above-described embodiment.The base station includes processor 501, transmitter 502 and receiver 503.Processing unit 401 described in Fig. 4 can be realized by processor 501, transmission unit 402 can be realized by transmitter 502, receiving unit 403 can realize that the transmitter 502, receiver 503 can be used for supporting sending and receiving data between the terminal device in base station and above-described embodiment by receiver 503.The base station can also include memory 504, can be used for storing the program code and data of base station.Various components in the base station are coupled, for supporting the various functions of base station described in the dispatching method as described in Fig. 2,3.
It is designed it is understood that Fig. 5 illustrate only simplifying for base station.In practical applications, the base station may include any number of transmitter, receiver, processor, memory etc., and all base station of the invention may be implemented all within protection scope of the present invention.
Fig. 6 shows a kind of possible structural schematic diagram of terminal device involved in above-described embodiment.The terminal device can be terminal device 20 as shown in Figure 1.The terminal
Equipment includes processing unit 601, receiving unit 602 and transmission unit 603.
The processing unit 601 is used to whether need to be implemented uplink synchronous under light connection status according to the instruction of base station determination, and performs corresponding processing.
The receiving unit 602 is used to receive the scheduling information that the base station is sent.Wherein, the scheduling information carries the mark that the base station is terminal device distribution.The mark identifies the scheduling information for the terminal device.
The receiving unit 602 is also used to receive the downlink data that the base station is sent by the resource that the scheduling information indicates.
The transmission unit 603 is used to send feedback information to the base station when the terminal device is in uplink sync status.Wherein, the feedback information reflects the reception condition of the downlink data.
The specific form of the mark can be in method shown in Fig. 2 described in step S203 like that, no longer illustrate here.
Optionally, the processing unit 601 is also used to control the terminal device under the instruction of the base station into light connection status.
The terminal device obtains the mark of the base station distribution when being moved to the serving cell of the base station.Specifically include: the transmission unit 603 is also used to send preamble code to the base station after the serving cell for being moved to the base station in the terminal device.The receiving unit 602 is also used to receive the RAR that the base station is sent, wherein the RAR includes the mark that the base station is terminal device distribution.
The RAR can also be the ascending resource of terminal device distribution comprising the base station.The transmission unit 603 can be also used for sending by the ascending resource to the base station
The connection of the terminal device restores mark and area update mark.
Optionally, the processing unit 601 is also used to through the received broadcast message of the receiving unit 602, or determines whether the terminal device for entering light connection status needs to be implemented uplink synchronous with making an appointment for the base station.
Optionally, the processing unit 601 is also used to decode the scheduling information, to obtain the mark.Alternatively, the processing unit is used to descramble PDCCH using the mark, to obtain the scheduling information.
When the mark is made of group mark and Terminal Equipment Identifier, the processing unit 601 is also used to descramble PDCCH using described group of mark, so that it is determined that the base station scheduled the terminal device group where the terminal device.Whether the processing unit 601 is also used to further be decoded the scheduling information, determine in the scheduling information comprising the Terminal Equipment Identifier.
Optionally, it if the processing unit 601 determines that the terminal device is in uplink sync status, or does not need to first carry out uplink synchronous, then the transmission unit 603 is also used to send the feedback information by Physical Uplink Control Channel.
If the processing unit 601 determines that the terminal device is in uplink loss state, or needs to first carry out uplink synchronous, then: the transmission unit 603 is also used to send preamble code to the base station.The receiving unit 602 is also used to receive the RAR that the base station is sent, wherein the RAR includes the ascending resource that the base station is terminal device distribution.The transmission unit 601 is also used to send the feedback information by the ascending resource.
In the content that the feedback information may include method as shown in Figure 2 described in step S205 like that, it is no longer described in detail one by one here.
Other achievable functions that the above each unit does not describe to the greatest extent, it is identical as the correlation function of terminal device involved in data transmission method as shown in Figure 2,3, it is no longer described in detail one by one here.By the coordinated between above-mentioned each unit, the terminal device in light connection status can be enabled to complete the reception of downlink data in time, improve the efficiency of data transmission.
The effect of each unit in terminal device described above can also execute corresponding software by hardware to realize by hardware realization.For example, above-mentioned each unit can be the hardware execute with every module, it is also possible to be able to carry out other hardware devices of corresponding computer program to complete above-mentioned every effect.
Fig. 7 shows a kind of possible structural schematic diagram of terminal device involved in above-described embodiment.The terminal device includes processor 701, receiver 702 and transmitter 703.Processing unit 601 described in Fig. 6 can be realized by processor 701.Receiving unit 602 can realize that transmission unit 703 can be realized by transmitter 703 by receiver 702, and the receiver 702, transmitter 703 can be used for supporting sending and receiving data between the base station in terminal device and above-described embodiment.Processing unit 601 can be realized by processor 701.The terminal device can also include memory 704, can be used for the program code and data of storage terminal device.Various components in the terminal device are coupled, for supporting the various functions of terminal device described in the dispatching method as involved in Fig. 2,3 described embodiments.
It is designed it is understood that Fig. 7 illustrate only simplifying for terminal device.In practical applications, the terminal device may include any number of transmitter, receiver, processor, memory etc., and all terminal device of the invention may be implemented all within protection scope of the present invention.
It is understood that, processor in the embodiment of the present invention can be central processing unit (CPU), general processor, digital signal processor (DSP), specific integrated circuit (ASIC), field programmable gate array (FPGA) perhaps other programmable logic device, transistor logic hardware component or any combination thereof.It, which may be implemented or executes, combines various illustrative logic blocks, module and circuit described in the disclosure of invention.The processor is also possible to realize the combination of computing function, such as combines comprising one or more microprocessors, DSP and the combination of microprocessor etc..
The step of method described in the embodiment of the present invention or algorithm, can be directly embedded into the combination of hardware, the software module or the two that processing unit executes.Software module can store in RAM memory, flash memory, ROM memory, eprom memory, eeprom memory, register, hard disk, moveable magnetic disc, CD-ROM or this field in other any form of storage mediums.Illustratively, storage medium can be connect with processing unit so that processing unit can from storage medium decoded information, and can be to storage medium stored and written information.Optionally, storage medium can also be integrated into processing unit.Processing unit and storage medium can be configured in ASIC, and ASIC can be configured in subscriber terminal equipment.Optionally, processing unit and storage medium can also be configured in the different components in subscriber terminal equipment.
It will be appreciated that in said one or multiple examples, above-mentioned function described in the embodiment of the present invention can be realized those skilled in the art in hardware, software, firmware or any combination of this three.If realized in software, these functions be can store on computer-readable medium, or be transmitted on computer-readable medium in the form of one or more instructions or code forms.Computer-readable medium includes computer storage medium and convenient for so that computer program is allowed to be transferred to from a place communication media in other places.Storage medium can be any general or special
Computer can be with the useable medium of access.Such as, such computer-readable medium can include but is not limited to RAM, ROM, EEPROM, CD-ROM or other optical disc storages, disk storage or other magnetic storage devices or it is other it is any can be used for carry store with instruct or data structure and it is other can be by general/special computers or the medium of the program code of general/specially treated unit decoded form.Furthermore, any connection can be properly termed computer-readable medium, for example, if software is to pass through a coaxial cable, optical fiber computer, twisted pair, Digital Subscriber Line (DSL) or being also contained in defined computer-readable medium with wireless way for transmitting such as example infrared, wireless and microwaves from a web-site, server or other remote resources.The disk (disk) and disk (disc) includes compress disk, radium-shine disk, CD, DVD, floppy disk and Blu-ray Disc, and disk is usually with magnetic replicate data, and disk usually carries out optically replicated data with laser.Combinations of the above also may include in computer-readable medium.
Above-described specific embodiment; the purpose of the present invention, technical scheme and beneficial effects are had been further described; it should be understood that; the foregoing is merely a specific embodiment of the invention; it is not intended to limit the scope of protection of the present invention; all any modification, equivalent substitution, improvement and etc. on the basis of technical solution of the present invention, done should all include within protection scope of the present invention.
Claims (28)
- A kind of data transmission method characterized by comprisingWhether base station instruction needs to be implemented uplink synchronous in the terminal device of light connection status；When the base station needs the terminal device to described in light connection status to send downlink data, the base station sends scheduling information to the terminal device, wherein, the scheduling information carries the mark that the base station is terminal device distribution, and the mark identifies the scheduling information for the terminal device；The base station sends the downlink data to the terminal device by the resource that the scheduling information indicates；The base station receives the feedback information that the terminal device in uplink sync status is sent, wherein the feedback information reflects the reception condition of the downlink data.
- The method as described in claim 1, which is characterized in that before the base station sends scheduling information to the terminal device, further includes:The base station indicates that the terminal device enters light connection status.
- The method as described in claim 1, which is characterized in that before the base station sends scheduling information to the terminal device, further includes:The base station, which receives, is moved to the leader sequence code that the terminal device of the serving cell of the base station is sent；The base station sends random access response to the terminal device, wherein the random access response includes the mark that the base station is terminal device distribution.
- Method as claimed in any one of claims 1-3, which is characterized in that the base station by broadcast message or indicates whether the terminal device needs with making an appointment for the terminal device Execute uplink synchronous.
- Such as method of any of claims 1-4, it is characterized in that, the mark includes group mark and Terminal Equipment Identifier, wherein, described group of mark is for the terminal device group where terminal device described in unique identification, and the Terminal Equipment Identifier is used for the terminal device described in unique identification in described group.
- Method as claimed in claim 5, which is characterized in that the scheduling information carries the mark that the base station is terminal device distribution and includes:The base station scrambles the Physical Downlink Control Channel for sending the scheduling information using described group of mark, wherein includes the Terminal Equipment Identifier in the scheduling information.
- Such as method of any of claims 1-6, it is characterized in that, if the base station indicates that the terminal device needs to be implemented uplink synchronous, before the feedback information that the base station receives that the terminal device in uplink sync status is sent, further includes:The base station receives the leader sequence code that the terminal device is sent；The base station sends random access response to the terminal device, wherein the random access response includes the ascending resource that the base station is terminal device distribution；Wherein, the feedback information is that the terminal device is transmitted by the ascending resource.
- A kind of data transmission method characterized by comprisingWhether terminal device needs to be implemented uplink synchronous according to the instruction of base station determination under light connected state, and performs corresponding processing；The terminal device in light connection status receives the scheduling information that the base station is sent, wherein the scheduling information carries the mark that the base station is terminal device distribution, and the mark identifies the scheduling information for the terminal device；The terminal device receives the downlink data that the base station is sent by the resource that the scheduling information indicates；The terminal device in uplink sync status sends feedback information to the base station, wherein the feedback information reflects the reception condition of the downlink data.
- Method according to claim 8, which is characterized in that before the scheduling information that the terminal device receives that the base station is sent, further includes:The terminal device enters light connection status under the instruction of the base station.
- Method according to claim 8, which is characterized in that before the scheduling information that the terminal device in light connection status receives that the base station is sent, further includes:The terminal device sends leader sequence code to the base station after the serving cell for being moved to the base station；The terminal device receives the random access response that the base station is sent, wherein the random access response includes the mark that the base station is terminal device distribution.
- Method as described in any one of claim 8-10, which is characterized in that the terminal device is by receiving broadcast message or determining whether need to be implemented uplink synchronous under light connection status with making an appointment for the base station.
- Method as described in any one of claim 8-11, it is characterized in that, the mark includes group mark and Terminal Equipment Identifier, wherein, described group of mark is for the terminal device group where terminal device described in unique identification, and the Terminal Equipment Identifier is used for the terminal device described in unique identification in described group.
- Method as claimed in claim 12, which is characterized in that the terminal device in light connection status receives the scheduling information that the base station is sent and includes:The terminal device descrambles the physical down channel for sending the scheduling information using described group of mark；The terminal device decodes the scheduling information, wherein includes the Terminal Equipment Identifier in the scheduling information.
- Method as described in any one of claim 8-13, which is characterized in that if terminal device determination needs to be implemented uplink synchronous, perform corresponding processing and include:Before the terminal device in uplink sync status sends feedback information to the base station, the terminal device sends leader sequence code to the base station；The terminal device receives the random access response that the base station is sent, wherein the random access response includes the ascending resource that the base station is terminal device distribution；Wherein, the feedback information is that the terminal device is transmitted by the ascending resource.
- A kind of base station characterized by comprisingProcessing unit, is used to indicate whether the terminal device in light connection status needs to be implemented uplink synchronous；Transmission unit, for when needing the terminal device to described in light connection status to send downlink data, scheduling information is sent to the terminal device, wherein, the scheduling information carries the mark that the processing unit is terminal device distribution, and the mark identifies the scheduling information for the terminal device；The resource that the transmission unit is also used to indicate by the scheduling information sends the downlink data to the terminal device；Receiving unit, for receiving the feedback information for being in the terminal device of uplink sync status and sending, wherein the feedback information reflects the reception condition of the downlink data.
- Base station as claimed in claim 15, which is characterized in that before transmission unit is used to send scheduling information to the terminal device, further includes:The transmission unit is also used to send control information to the terminal device, wherein the control information indicates that the terminal device enters light connection status.
- Base station as claimed in claim 15, which is characterized in that before transmission unit is used to send scheduling information to the terminal device, further includes:The receiving unit is also used to receive the leader sequence code that the terminal device for the serving cell for being moved to the base station is sent；The transmission unit is also used to send random access response to the terminal device, wherein the random access response includes the mark that the processing unit is terminal device distribution.
- Base station as described in any one of claim 15-17, it is characterized in that, the processing unit sends broadcast message or the processing unit by indicating whether the terminal device needs to be implemented uplink synchronous with making an appointment for the terminal device to the terminal device by controlling the transmission unit.
- Base station as described in any one of claim 15-18, it is characterized in that, the mark includes group mark and Terminal Equipment Identifier, wherein, for described group of mark for the terminal device group where terminal device described in unique identification, the Terminal Equipment Identifier is used for the terminal device described in unique identification in described group.
- Base station as claimed in claim 19, which is characterized in that the scheduling information carries the mark that the processing unit is terminal device distribution and includes:The processing unit scrambles the Physical Downlink Control Channel for sending the scheduling information using described group of mark, and the Terminal Equipment Identifier is included in the scheduling information.
- Base station as described in any one of claim 15-20, it is characterized in that, if the processing unit indicates that the terminal device needs to be implemented uplink synchronous, before receiving unit is used to receive the feedback information that the terminal device in uplink sync status is sent, further includes:The receiving unit is also used to receive the leader sequence code that the terminal device is sent；The transmission unit is also used to send random access response to the terminal device, wherein the random access response includes the ascending resource that the processing unit is terminal device distribution；Wherein, the feedback information is that the terminal device is transmitted by the ascending resource.
- A kind of terminal device characterized by comprisingProcessing unit for determining whether the terminal device for entering light connection status needs to be implemented uplink synchronous according to the instruction of base station, and performs corresponding processing；Receiving unit, the scheduling information sent for receiving the base station, wherein the scheduling information carries the mark that the base station is terminal device distribution, and the mark identifies the scheduling information for the terminal device；The receiving unit is also used to receive the downlink data that the base station is sent by the resource that the scheduling information indicates；Transmission unit, for sending feedback information to the base station when the terminal device is in uplink sync status, wherein the feedback information reflects the reception condition of the downlink data.
- Terminal device as claimed in claim 22, which is characterized in that before receiving unit is used to receive the scheduling information that the base station is sent, further includes:The processing unit controls the terminal device into light connection status under the instruction of the base station.
- Terminal device as claimed in claim 22, which is characterized in that be used in receiving unit Before the scheduling information for receiving the base station transmission, further includes:The transmission unit is also used to send leader sequence code to the base station after the serving cell for being moved to the base station in the terminal device；The receiving unit is also used to receive the random access response that the base station is sent, wherein the random access response includes the mark that the base station is terminal device distribution.
- Terminal device as described in claim 22-24, which is characterized in that the processing unit determines whether the terminal device for entering light connection status needs to be implemented uplink synchronous by the received broadcast message of the receiving unit or with making an appointment for the base station.
- Terminal device as described in any one of claim 22-25, it is characterized in that, the mark includes group mark and Terminal Equipment Identifier, wherein, for described group of mark for the terminal device group where terminal device described in unique identification, the Terminal Equipment Identifier is used for the terminal device described in unique identification in described group.
- Terminal device as claimed in claim 26, which is characterized in that receiving unit is used to receive the scheduling information that the base station is sent and includes:The processing unit is also used to descramble the physical down channel for sending the scheduling information using described group of mark；The processing unit is also used to decode the scheduling information, wherein includes the Terminal Equipment Identifier in the scheduling information.
- Terminal device as described in any one of claim 22-27, which is characterized in that if processing unit determination needs to be implemented uplink synchronous, perform corresponding processing and include:Before transmission unit sends feedback information to the base station when the terminal device is in uplink sync status, the transmission unit is also used to send leader sequence code to the base station；The receiving unit is also used to receive the random access response that the base station is sent, wherein the random access response includes the ascending resource that the base station is terminal device distribution；Wherein, the feedback information is that the transmission unit is transmitted by the ascending resource.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2016/094968 WO2018027938A1 (en) | 2016-08-12 | 2016-08-12 | Data transmission method, apparatus and system |
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| CN109644475A true CN109644475A (en) | 2019-04-16 |
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| CN117676851A (en) * | 2022-08-18 | 2024-03-08 | 展讯通信（上海）有限公司 | Data receiving and transmitting method and device, computer readable storage medium and communication equipment |
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Application publication date: 20190416 |