CN106792906B - A kind of method of user equipment and its transmission of data blocks - Google Patents
A kind of method of user equipment and its transmission of data blocks Download PDFInfo
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- CN106792906B CN106792906B CN201611136028.3A CN201611136028A CN106792906B CN 106792906 B CN106792906 B CN 106792906B CN 201611136028 A CN201611136028 A CN 201611136028A CN 106792906 B CN106792906 B CN 106792906B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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Abstract
A kind of method of user equipment and its transmission of data blocks, the method includes：Communication connection is established respectively with multiple base stations；Wherein, the communication connection for exempting from scheduling method is established at least one of the multiple base station base station；With at least one of the multiple base station base station by exempting from scheduled mode transmissions data block, and layer two by multiple communication connections for being established respectively with the multiple base station simultaneously redundant transmission data block to base station layer two；Wherein：The data block transmitted in each communication connection is identical data block.The low time delay and high reliability of data transmission can be taken into account using the above scheme.
Description
Technical field
The present invention relates to a kind of methods of wireless communication field more particularly to user equipment and its transmission of data blocks.
Background technology
For any there are the wireless communication system of multi-user installation (User Equipment, UE) access, it is required for solving
The conflict of data transfer demands or the occupancy communication resource that certainly more UE occur at random.
In order to avoid this conflict, currently, by base station (Base Station, BS) scheduling method, i.e., each UE is logical
Scheduling request (Scheduling Request, SR) is sent to BS before letter, by BS come according to the busy-idle condition of the communication resource,
The communication resource is distributed for UE, because the pattern can be related to multiple interaction during intercommunication, so kind pattern can cause
Time delay is larger.
In order to reduce time delay, and occur exempting from scheduling method, i.e., any UE once has communication requirement, then is exempting from scheduling resource
The upper transmission for directly carrying out data, this pattern there are one or more UE use identical wireless communication resources conflict possibility,
Therefore reliability is relatively low.
Invention content
Problems solved by the invention is how to take into account the low time delay and high reliability of data transmission.
To solve the above problems, an embodiment of the present invention provides a kind of method of customer equipment data block transmission, the side
Method includes：Communication connection is established respectively with multiple base stations；Wherein, it is established at least one of the multiple base station base station and exempts to adjust
The communication connection of degree pattern；With at least one of the multiple base station base station by exempting from scheduled mode transmissions data block, and layer
Two by multiple communication connections for being established respectively with the multiple base station simultaneously redundant transmission data block to base station layer two；Its
In：The data block transmitted in each communication connection is identical data block.
Optionally, orthogonal code or nonopiate CDMA are used at least one communication connection for exempting from scheduling method
Access way transmission data block.
Optionally, at least one of the multiple communication connection communication connection, using mixed automatic retransfer mode
Transmit the data block.
Optionally, when the data block success in any one of communication connection confirmed in the multiple communication connection
When transmission, other communication connection transmitting data blocks are stopped at.
Optionally, when the layer two of the base station receives the more parts of data blocks from the multiple communication connection, pass through
Check that data block number abandons the data block of redundancy.
An embodiment of the present invention provides a kind of user equipment, the user equipment includes：Connection establishment unit, be suitable for it is more
Communication connection is established in a base station respectively；Wherein, it is established at least one of the multiple base station base station and exempts from the logical of scheduling method
Letter connection；Transmission unit, suitable for at least one of the multiple base station base station by exempting from scheduled mode transmissions data block, and
Configuration layer two by multiple communication connections for being established respectively with the multiple base station simultaneously redundant transmission data block to base station
Layer two；Wherein：The data block transmitted in each communication connection is identical data block.
Optionally, the transmission unit, it is orthogonal suitable for being used at least one communication connection for exempting from scheduling method
Code or non-orthogonal codes divide access mode transmission data block.
Optionally, the transmission unit is suitable at least one of the multiple communication connection communication connection, uses
Mixed automatic retransfer mode transmits the data block.
Optionally, the transmission unit is suitable for any one of communication in the multiple communication connection when confirmation
When connected data block Successful transmissions, other communication connection transmitting data blocks are stopped at.
Optionally, when the layer two of the base station receives the more parts of data blocks from the multiple communication connection, pass through
Check that data block number abandons the data block of redundancy.
Compared with prior art, technical scheme of the present invention has the following advantages：
By establishing communication connection respectively with multiple base stations, and establishes and exempt from at least one of the multiple base station base station
The communication connection of scheduling method, and then at least one of the multiple base station base station by exempting from scheduled mode transmissions data
Block, and the layer two of user equipment in the multiple communication connection simultaneously redundant transmission data block to base station layer two, due to
The data block transmitted in each communication connection is identical data block, it is ensured that the high reliability of transmission of data blocks,
And it is at least one in the communication connection established with multiple base stations exempt from scheduling method, when can be consumed to avoid scheduling interaction
Prolong, therefore the low time delay of transmission of data blocks can also be taken into account.
Further, by using orthogonal code or non-orthogonal codes point at least one communication connection for exempting from scheduling method
Access mode transmission data block can improve bandwidth availability ratio.
Further, by being communicated to connect at least one of multiple communication connections, using mixed automatic retransfer mode
Transmit the data block, only need to transmit base station can not error correction data block, it is not necessary that entire data block is transmitted several times, therefore can drop
The waste of low communication resource improves the efficiency of transmission of data blocks.
Further, when the data block success in any one of communication connection confirmed in the multiple communication connection
When transmission, other communication connection transmitting data blocks are stopped at, the communication connection without meaninglessly occupying all continues
The transmission of data block, therefore the waste of the communication resource can be reduced, improve the utilization rate of the communication resource.
Description of the drawings
Fig. 1 is a kind of flow diagram of the method for customer equipment data block transmission in the embodiment of the present invention；
Fig. 2 is a kind of scene schematic diagram of the process of customer equipment data block transmission in the embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of user equipment in the embodiment of the present invention.
Specific implementation mode
As described above, in the prior art, or by base station (Base Station, BS) scheduled mode transmissions data block,
Or voluntarily exempt to dispatch access module transmission data block by UE.Specifically, continuous on BS setup times for scheduling method
Resource so that UE once has data transmission requests, just has resource to send scheduling request SR to base station at once, and every UE is each
Subframe (Subframe) has the opportunity to send SR, and base station receives SR, can distribute ascending resource at once to the UE, but the method exists
Time delay caused by interaction twice, while reducing the effective rate of utilization of physical resource.
For exempting from scheduling method, continuously exempt from scheduling resource on the setup time of base station, UE once there are data transfer demands, just
It can exempt from the directly upper transmission of scheduling resource, and carry UE identity informations (Identification, ID) in data and screened for BS
The source of data block, this method can realize low time delay, but due to exempting to dispatch, therefore there are multi-section UE to be sent out in the same resource simultaneously
The possibility of data block is sent, this can lead to signal overlap or conflict, in turn result in data block transfer failure, so needing multi-configuration
Exempt from scheduling resource and sends distribution to reduce the probability clashed, to reduce the possibility retransmitted to disperse UE.In addition, using empty
Between diversity can reduce receive Block Error Rate (Receiving Block Error Rate), the possibility of re-transmission can also be reduced,
But BS arrangement spaces diversity can cause engineering difficulty and cost higher.
To solve the above problems, the embodiment of the present invention is by establishing communication connection respectively with multiple base stations, and with it is described more
At least one of a base station base station, which is established, exempts from the communication connection of scheduling method, and then at least one of with the multiple base station
Base station is by exempting from scheduled mode transmissions data block, and the layer two of user equipment redundant transmission simultaneously in the multiple communication connection
Data block to base station layer two, it is ensured that the high reliability of transmission of data blocks, and take into account the low time delay of transmission of data blocks.
To make the above purposes, features and advantages of the invention more obvious and understandable, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.
Fig. 1 shows a kind of flow diagram of the method for the transmission of customer equipment data block in the embodiment of the present invention, Fig. 2
The scene schematic diagram for showing a kind of process of customer equipment data block transmission in the embodiment of the present invention, with reference to Fig. 1 and
The method is discussed in detail in Fig. 2 step by step, and the method may include following steps：
Step S11：Communication connection is established respectively with multiple base stations.
In fourth generation mobile communication technology (The 4th Generation Mobile Communication
Technology, 4G) in evolution process, there is carrier wave polymerization (Carrier Aggregation, CA) and dual link (Dual
Connectivity, DC), therefore a UE may be implemented and establish communication connection with two or more BS simultaneously or form communication
Link, so as to reach high bandwidth.Therefore in specific implementation, when UE has data transfer demands, can on a physical layer with
Communication connection is established in multiple base stations respectively.
For example, such as Fig. 2, the demand of the oriented UE2 transmission data blocks X of UE1 can then establish communication connection a1, together with base station A
When can also with base station B establish communication connection b1, can also simultaneously with base station C establish communication connection c1.
In order to reduce the time delay in communication process, for configured with the base station for exempting from scheduling resource, UE can foundation exempt to adjust
The communication connection of degree pattern.In specific implementation, UE can be established at least one of the multiple base station base station and be exempted to dispatch
The communication connection of pattern, in other words, when UE carries out transmission of data blocks using the communication connection for exempting from scheduling method, as long as there is data
Block transmission demand, can be directly using the transmission exempted from scheduling resource and carry out data block.
Step S12：With at least one of the multiple base station base station by exempting from scheduled mode transmissions data block, and layer two
By in multiple communication connections for being established respectively with the multiple base station simultaneously redundant transmission data block to base station layer two.
In an embodiment of the present invention, the layer two (Layer 2) is data link layer.In embodiments of the present invention, number
According to can be transmitted in the form of data block.
In specific implementation, UE can be at least one of the multiple base station base station by exempting from scheduled mode transmissions number
According to block, and the layer two of UE redundancy can pass simultaneously in multiple communication connections by being established respectively with the multiple base station
Defeated identical data block to base station layer two, that is to say, that UE is passed in each of multiple communication connections communication connection
Defeated data block is identical data block, as needs the data block transmitted.
For example, with reference to figure 2, UE1 also transmits number in communication connection a1 transmitting data block X on communication connection b1
According to block X, in communication connection c1 or transmission data block X.It is thus possible to improve the reliability of transmission of data blocks.
Currently, during transmission of data blocks, BS scheduling methods have that time delay is big, and UE voluntarily exempts from scheduling access mould
Formula has that reliability is low.
And the embodiment of the present invention is by establishing communication connection respectively with multiple base stations, and in the multiple base station at least
The communication connection for exempting from scheduling method is established in one base station, and then is dispatched at least one of the multiple base station base station by exempting from
Pattern transmission data block, and the layer two of user equipment in the multiple communication connection simultaneously redundant transmission data block to base station
Layer two, since the data block transmitted in each communication connection is identical data block, it is ensured that transmission of data blocks
High reliability, and with multiple base stations establish communication connection in it is at least one exempt from scheduling method, can to avoid scheduling hand over
The time delay mutually consumed, therefore the low time delay of transmission of data blocks can also be taken into account.
In order to obtain communication gain using the multi-signal processing method in spread spectrum communication, to increase bandwidth availability ratio.
In specific implementation, orthogonal code or nonopiate CDMA can be used at least one communication connection for exempting from scheduling method
Access way transmission data block.
It in specific implementation, can be at least one of the multiple communication connection communication connection, certainly using mixing
Dynamic retransmission scheme transmits the data block, thus need to only transmit base station can not error correction data block, it is not necessary that entire number is transmitted several times
According to block, therefore the waste of the communication resource can be reduced, improve the efficiency of transmission of data blocks.
In specific implementation, when the data in any one of communication connection confirmed in the multiple communication connection
When block Successful transmissions, in other words can stop at other communication connection transmitting data blocks has one in a plurality of communication connection
After being successfully transmitted, layer two can control and abandon transmission data block in other communication connections, and so there is no need to meaninglessly occupy institute
Some communicates to connect the transmission for continuing data block, therefore can reduce the waste of the communication resource, improves the profit of the communication resource
With rate.
In specific implementation, when the layer two of the base station receives the more parts of data blocks from the multiple communication connection
When, by checking that data block number abandons the data block of redundancy, that is to say, that if the physical layer Successful transmissions data block of UE
Communication connection is communicated to connect more than one, and base station can differentiate that mechanism abandons extra data block in layer two by redundancy, avoid
The data block of multiple repetitions is handled, therefore the efficiency of data processing can be improved.
In specific implementation, differentiate that mechanism abandons the operation of extra data block by redundancy in layer two about base station, it can
By there are many in a manner of.For example, all data blocks after user equipment is successfully transferred to each base station, can converge to main base
It stands, and then differentiates that mechanism abandons redundant data block according to redundancy by master base station.Alternatively, also for example, data block can be pooled to
One of prothetic group station, and then differentiate that mechanism abandons redundant data block according to redundancy by prothetic group station.
To make those skilled in the art more fully understand and realizing that the present invention, Fig. 3 are shown in the embodiment of the present invention
A kind of structural schematic diagram of user equipment, as shown in figure 3, the user equipment may include：Connection establishment unit 31 and transmission
Unit 32, wherein：
Connection establishment unit 31, suitable for establishing communication connection respectively with multiple base stations；Wherein, in the multiple base station
The communication connection for exempting from scheduling method is established at least one base station；
Transmission unit 32, suitable for at least one of the multiple base station base station by exempting from scheduled mode transmissions data
Block, and configuration layer two by multiple communication connections for being established respectively with the multiple base station simultaneously redundant transmission data block to base
The layer two stood；Wherein：The data block transmitted in each communication connection is identical data block.
To sum up, the embodiment of the present invention establishes communication connection respectively by connection establishment unit 31 and multiple base stations, and with institute
It states at least one of multiple base stations base station and establishes the communication connection for exempting from scheduling method, and then transmission unit 32 and the multiple base
Base station at least one of stand by exempting from scheduled mode transmissions data block, and the layer two of user equipment is in the multiple communication connection
Upper redundant transmission data block simultaneously to base station layer two, since the data block transmitted in each communication connection is identical
Data block, it is ensured that the high reliability of transmission of data blocks, and at least one be in the communication connection established with multiple base stations
Exempt from scheduling method, can be to avoid the consumed time delay of scheduling interaction, therefore the low time delay of transmission of data blocks can also be taken into account.
In specific implementation, the transmission unit 32, suitable at least one communication connection for exempting from scheduling method
Divide access mode transmission data block using orthogonal code or non-orthogonal codes.
In specific implementation, the transmission unit 32 is suitable at least one of the multiple communication connection communication link
It connects, the data block is transmitted using mixed automatic retransfer mode.
In specific implementation, the transmission unit 32 is suitable for any one when confirmation in the multiple communication connection
When data block Successful transmissions in the communication connection, other communication connection transmitting data blocks are stopped at.
In specific implementation, when the layer two of the base station receives the more parts of data blocks from the multiple communication connection
When, by checking that data block number abandons the data block of redundancy.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in computer readable storage medium, to store
Medium may include：ROM, RAM, disk or CD etc..
Although present disclosure is as above, present invention is not limited to this.Any those skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (8)
1. a kind of method of customer equipment data block transmission, which is characterized in that including：
Communication connection is established respectively with multiple base stations；Wherein, it is established at least one of the multiple base station base station and exempts to dispatch
The communication connection of pattern；
With at least one of the multiple base station base station by exempting from scheduled mode transmissions data block, and layer two by with it is described more
In multiple communication connections that a base station is established respectively simultaneously redundant transmission data block to base station layer two；Wherein：Each described
The data block transmitted in communication connection is identical data block；
When the data block Successful transmissions in any one of communication connection confirmed in the multiple communication connection, stop
In other communication connection transmitting data blocks.
2. the method for customer equipment data block according to claim 1 transmission, which is characterized in that described exempt from least one
Divide access mode transmission data block using orthogonal code or non-orthogonal codes in the communication connection of scheduling method.
3. the method for customer equipment data block transmission according to claim 1, which is characterized in that in the multiple communication link
It at least one of connects in communication connection, the data block is transmitted using mixed automatic retransfer mode.
4. the method for customer equipment data block transmission according to claim 1, which is characterized in that when the layer two of the base station
When receiving the more parts of data blocks from the multiple communication connection, by checking that data block number abandons the data block of redundancy.
5. a kind of user equipment, which is characterized in that including：
Connection establishment unit, suitable for establishing communication connection respectively with multiple base stations；Wherein, at least one in the multiple base station
The communication connection for exempting from scheduling method is established in a base station；
Transmission unit, suitable for, by exempting from scheduled mode transmissions data block, and matching at least one of the multiple base station base station
Set layer two by multiple communication connections for being established respectively with the multiple base station simultaneously redundant transmission data block to base station layer
Two；Wherein：The data block transmitted in each communication connection is identical data block；When confirmation is in the multiple communication
When data block Successful transmissions in any one of communication connection in connection, other communication connection transmitting datas are stopped at
Block.
6. user equipment according to claim 5, which is characterized in that the transmission unit is suitable at least one described
Exempt to divide access mode transmission data block using orthogonal code or non-orthogonal codes in the communication connection of scheduling method.
7. user equipment according to claim 5, which is characterized in that the transmission unit is suitable in the multiple communication
In at least one of connection communication connection, the data block is transmitted using mixed automatic retransfer mode.
8. user equipment according to claim 5, which is characterized in that when the layer two of the base station is from the multiple communication link
When receiving the more parts of data blocks in connecing, by checking that data block number abandons the data block of redundancy.
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| CN201611136028.3A CN106792906B (en) | 2016-12-09 | 2016-12-09 | A kind of method of user equipment and its transmission of data blocks |
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| CN201611136028.3A CN106792906B (en) | 2016-12-09 | 2016-12-09 | A kind of method of user equipment and its transmission of data blocks |
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| CN106792906B true CN106792906B (en) | 2018-08-14 |
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| US9750056B2 (en) * | 2015-01-27 | 2017-08-29 | Huawei Technologies Co., Ltd. | System and method for transmission in a grant-free uplink transmission scheme |
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