CN104581948B - A kind of BSR processing methods in dual link network - Google Patents
A kind of BSR processing methods in dual link network Download PDFInfo
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- CN104581948B CN104581948B CN201310486470.9A CN201310486470A CN104581948B CN 104581948 B CN104581948 B CN 104581948B CN 201310486470 A CN201310486470 A CN 201310486470A CN 104581948 B CN104581948 B CN 104581948B
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- base station
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- bsr
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/52—Allocation or scheduling criteria for wireless resources based on load
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
-
- 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
- H04W28/0278—Traffic management, e.g. flow control or congestion control using buffer status reports
Abstract
This application discloses the buffer status reports in a kind of dual link network（BSR）Processing method, including：A, reported by user equipment UE BSR is to macro base station；B, the BSR that macro base station is reported according to UE distributes the uplink data to be transmitted amount of macro base station cell and micro-base station cell；C, the signaling for carrying the uplink data to be transmitted amount for distributing to micro-base station cell is sent to micro-base station by macro base station；D, macro base station and micro-base station carry out uplink scheduling respectively according to the uplink data to be transmitted amount for distributing to this cell to UE.The application to the BSR that UE is reported in dual link network for providing feasible processing scheme.
Description
Technical field
This application involves the buffer status reports in wireless communication technology field more particularly to a kind of dual link network
（BSR, Buffer Status Report）Processing method.
Background technology
Dual link network is the research hotspot of Current wireless communication technology, in dual link network communication, the same logic
The upstream data of the logic channel can be sent to macro base station by the data of channel by macro base station and micro-base station common transport, UE
And micro-base station, to improve the handling capacity of UE.
The dual link network architecture is as shown in Figure 1.In such networks, user equipment（UE, User Equipment）Simultaneously
It keeps eating dishes without rice or wine to connect between macro base station and micro-base station, it means that macro base station can provide service for UE simultaneously with micro-base station.
It is communicated by using dual link, when UE is when macro base station Intra-cell is moved and is entered or leaves a micro-base station cell,
Handoff procedure can not be executed, and micro-base station cell is only configured or discharged for UE using resource reconfiguration process by macro base station
Resource, the relevant control process that core net executes at this time will greatly reduce, to reduce core network signalling load, further, since
Handoff procedure is not executed, the mobility performance of network there will be larger improvement.It can be seen that net can be reduced by introducing dual link communication
The signaling traffic load of network, and the mobility performance of network can be improved.
In existing LTE system, UE is needed to base station（eNB）Reporting buffer status report（BSR, Buffer Status
Report）It is used to indicate the uplink data to be transferred amount of UE, ascending resource is distributed in base station according to the BSR received for UE.BSR is reported
It is media access control（MAC）The function of layer, passes through BSR MAC Control Element（CE, Control Element）To carry.BSR
MAC CE include following three types：
Short BSR MAC CE；
Truncated BSR MAC CE；
Long BSR MAC CE。
Wherein, the format of Short BSR MAC CE and Truncated BSR MAC CE are as shown in Figure 2.Both MAC
Only include the buffer status of a logic channel group in CE." LCG ID " therein refers to logic channel group mark, " Buffer
Size " is the buffer status of this logic channel group.
The format of Long BSR MAC CE is as shown in Figure 3.Include the caching shape of four logic channel groups in this MAC CE
State.Wherein, " Buffer Size#0 " refers to the buffer status of No. 0 logic channel group, and " Buffer Size#1 " refers to No. 1
The buffer status of logic channel group, and so on.Buffer status indicates by the index value indicated by 6 bits, existing system
In define 64 index values altogether, each index value corresponds to the bit number of a segment limit, such as 20 corresponding bit number of index value
For 171-200.
UE generates different types of BSR MAC CE according to different scenes and is reported to eNB.
In existing system, UE could support up 11 logic channels, believe including 3 logics for being used for transmission control signaling
Road and 8 logic channels for being used for transmission business datum.Base station needs instruction one when control UE establishes a logic channel
Logic channel group identifies, for by this logical channel assignment to the logic channel group, UE to be based on each logic channel later
Group reports BSR, that is to say, that the BSR of some logic channel group is the sum of data to be transferred amount of all logic channels in the group.
UE could support up 4 logic channel groups, be identified as 0,1,2,3.As shown in figure 3, including all 4 in Long BSR MAC CE
The BSR of a logic channel group, and arrange in order.
Do not consider also in the prior art in dual link network how the BSR processing that UE is reported.
Invention content
This application provides the BSR processing methods in a kind of dual link network, for what is reported to UE in dual link network
BSR provides feasible processing scheme.
BSR processing methods in a kind of dual link network provided by the embodiments of the present application, including：
A, reported by user equipment UE BSR is to macro base station；
B, the BSR that macro base station is reported according to UE distributes the uplink data to be transmitted amount of macro base station cell and micro-base station cell；
C, the signaling for carrying the uplink data to be transmitted amount for distributing to micro-base station cell is sent to micro-base station by macro base station；
D, macro base station and micro-base station carry out uplink respectively according to the uplink data to be transmitted amount for distributing to this cell to UE
Scheduling.
Preferably, step B includes：
B1, macro base station judge the Format Type for the BSR that UE is reported, and if Long BSR MAC CE, execute step B2, if
For Short BSR MAC CE or Truncated BSR MAC CE, step B3 is executed；
B2, macro base station determine macrocell and micro-base station respectively for four logic channel groups in Long BSR MAC CE
Uplink data to be transmitted amount in cell；
B3, macro base station are for a logic channel in Short BSR MAC CE or Truncated BSR MAC CE
Group determines the uplink data to be transmitted amount in macrocell and micro-base station cell.
Preferably, further carrying the uplink number to be transmitted that macro base station distributes to micro-base station cell in signaling described in step C
According to the corresponding logic channel group mark of amount.
As can be seen from the above technical solutions, UE reports BSR to macro base station, and macro base station determines two cells according to BSR
In uplink data to be transmitted amount；Then macro base station by corresponding logic channel group identify and micro-base station cell in uplink it is to be passed
For transmission of data amount by the interface notification between macro base station and micro-base station to micro-base station, macro base station and micro-base station are respectively that UE distributes this
The ascending resource of cell.The application to the BSR that UE is reported in dual link network for providing feasible processing scheme.
Description of the drawings
Fig. 1 is dual link network architecture schematic diagram；
Fig. 2 is the form schematic diagram of Short BSR MAC CE and Truncated BSR MAC CE；
Fig. 3 is the form schematic diagram of Long BSR MAC CE；
Fig. 4 is the BSR process flow schematic diagrames in dual link network provided by the embodiments of the present application；
Fig. 5 is the schematic diagram for the Long BSR MAC CE that UE is reported to macro base station in the embodiment of the present application one；
Fig. 6 is that the signaling similar to Long BSR MAC CE formats that macro base station generates in the embodiment of the present application one is illustrated
Figure；
Fig. 7 is two signalings for being similar to Short BSR MAC CE formats that macro base station generates in the embodiment of the present application one
Schematic diagram；
Fig. 8 is Short BSR MAC CE or the Truncated BSR that UE is reported to macro base station in the embodiment of the present application two
The schematic diagram of MAC CE；
Fig. 9 is showing for the signaling similar to Short BSR MAC CE formats that macro base station generates in the embodiment of the present application two
It is intended to.
Specific implementation mode
In dual link network communication, the upstream data of the same logic channel is transmitted on two Radio Links,
In order to ensure that efficiently using for transfer resource, the basic thought of the BSR processing methods in dual link network provided by the present application be：
Ascending resource carries out centralised allocation by macro base station, i.e. UE reports BSR to macro base station, and macro base station determines two small according to BSR
Uplink data to be transmitted amount in area, the data volume can be indicated with the form of the buffer status in BSR；Then macro base station will
Uplink data to be transmitted amount in corresponding logic channel group mark and micro-base station cell passes through between macro base station and micro-base station
For interface notification to micro-base station, macro base station and micro-base station are respectively the ascending resource that UE distributes this cell；Base station is specially UE distribution
Which physical layer resources is determined by the MAC layer scheduling feature of itself.
To keep the technical principle, feature and technique effect of technical scheme clearer, below in conjunction with specific reality
Example is applied technical scheme is described in detail.
BSR process flows in dual link network provided by the embodiments of the present application are as shown in figure 4, including following step
Suddenly：
Step 401：UE reports BSR to macro base station.
No matter UE generates what type of BSR, it is reported to macro base by UE by the connection of eating dishes without rice or wine in macro base station cell
It stands.
Step 402：The BSR that macro base station is reported according to UE, the uplink for distributing macro base station cell and micro-base station cell are to be transmitted
Data volume.
Resource allocation refers to distribution uplink data to be transmitted amount herein.Macro base station receives a BSR, can know that UE's is upper
Row data to be transmitted amount, later macro base station the uplink data to be transmitted amount of UE is assigned in two cells, i.e., each cell is negative
Duty transmits the uplink data to be transmitted of a part of UE, and macro base station is to be passed by the uplink for distributing to micro-base station cell after distribution terminates
Transmission of data amount information is by the interface notification between macro base station and micro-base station to micro-base station.Macro base station can be according to macro base station cell
The ratio that resource allocation is determined with the loading condition in micro-base station cell is then micro- such as the light load in micro-base station cell
More uplink data to be transmitted amount is distributed in base station cell；Then it is the small differentiation of micro-base station such as the heavier loads in micro-base station cell
With less uplink data to be transmitted amount.
Macro base station judges the Format Type for the BSR that UE is reported, if macro base station receives the Long BSR MAC that UE is reported
CE, wherein including the buffer status of all four logic channel groups, then macro base station will be directed to this four logic channel groups, respectively
It determines the uplink data to be transmitted amount in macro base station cell and micro-base station cell, is patrolled later each of micro-base station cell is distributed to
The uplink data to be transmitted amount of volume channel group and corresponding logic channel group identification notification are to micro-base station；If macro base station receives UE
Short BSR MAC CE or Truncated the BSR MAC CE reported, wherein only including the caching shape of a logic channel group
State, then macro base station will determine the uplink number to be transmitted in macro base station cell and micro-base station cell for this logic channel group
According to amount, later the uplink data to be transmitted amount for the logic channel group for distributing to micro-base station cell and corresponding logic channel group
Identification notification is to micro-base station.
Step 403：The signaling for carrying the uplink data to be transmitted amount for distributing to micro-base station cell is sent to micro- by macro base station
Base station.
It should be noted that needing to define new signaling on the interface between macro base station and micro-base station, it to be used for macro base station
The uplink data to be transmitted amount and corresponding logic channel group mark of micro-base station cell are distributed in instruction.The signaling can reuse existing
Some BSR formats such as define the new signaling similar to Long BSR MAC CE and Short BSR MAC CE formats, certainly,
Other signaling formats can also be defined.
Step 404：Macro base station and micro-base station carry out uplink scheduling to UE respectively.
Macro base station and micro-base station carry out uplink scheduling according to the uplink data to be transmitted amount for distributing to this cell to UE,
Uplink scheduling is indicated later to be sent to UE by the connection of eating dishes without rice or wine of respective cell, phase can be uploaded in respective cell for UE
Answer the upstream data of quantity.
Application scheme is further described below by way of specific example.
Embodiment one：
UE reports Long BSR MAC CE as shown in Figure 5 to macro base station.It, can after macro base station receives BSR shown in upper figure
Know that the buffer status index value of logic channel group 0 is 10（Corresponding bit number is 36-42）, the caching shape of logic channel group 1
State index value is 20（Corresponding bit number is 171-200）, the buffer status index value of logic channel group 2 and 3 is 0（No
Data to be transferred）.Macro base station carries out resource allocation and distributes to the uplink data to be transmitted of macro base station cell for logic channel group 0
Amount is 14-17 bits（Corresponding buffer status index value is 4）, the uplink data to be transmitted amount for distributing to micro-base station cell is
22-25 bits（Corresponding buffer status index value is 7）；For logic channel group 1, the uplink for distributing to macro base station cell is to be passed
Transmission of data amount is 107-125 bits（Corresponding buffer status index value is 17）, the uplink for distributing to micro-base station cell is to be transmitted
Data volume is 64-75 bits（Corresponding buffer status index value is 14）.For logic channel group 2 and 3, no data to be transferred, no
It needs to distribute resource for it.After resource allocation terminates, macro base station generates is similar to Long BSR MAC CE lattice as shown in Figure 6
The signaling of formula, and it is sent to micro-base station,
Macro base station can also generate two as shown in Figure 7 and be similar to the signaling of Short BSR MAC CE formats, and send
To micro-base station, macro base station and micro-base station carry out uplink tune according to the uplink data to be transmitted amount for distributing to this cell to UE later
Degree.
Embodiment two：
UE reports Short BSR MAC CE or Truncated BSR MAC CE as shown in Figure 8 to macro base station.Macro base station
After receiving BSR shown in Fig. 8, it can know that the buffer status index value of logic channel group 1 is 10（Corresponding bit number is 36-
42）.Macro base station carries out resource allocation and distributes to the uplink data to be transmitted amount of macro base station cell for this logic channel group
For 14-17 bits（Corresponding buffer status index value is 4）, the uplink data to be transmitted amount for distributing to micro-base station cell is 22-
25 bits（Corresponding buffer status index value is 7）.After resource allocation terminates, macro base station generation is similar to as shown in Figure 9
The signaling of Short BSR MAC CE formats, and it is sent to micro-base station.Macro base station and micro-base station are according to distributing to this cell later
Uplink data to be transmitted amount come to UE carry out uplink scheduling.
The foregoing is merely the preferred embodiments of the application, not to limit the protection domain of the application, it is all
Within the spirit and principle of technical scheme, any modification, equivalent substitution, improvement and etc. done should be included in this Shen
Within the scope of please protecting.
Claims (2)
1. the buffer status report BSR processing methods in a kind of dual link network, which is characterized in that including：
A, reported by user equipment UE BSR is to macro base station；
B, the BSR that macro base station is reported according to UE distributes the uplink data to be transmitted amount of macro base station cell and micro-base station cell；
C, the signaling for carrying the uplink data to be transmitted amount for distributing to micro-base station cell is sent to micro-base station by macro base station；
D, macro base station and micro-base station carry out uplink tune respectively according to the uplink data to be transmitted amount for distributing to this cell to UE
Degree；
Wherein, step B includes：
B1, macro base station judge the Format Type for the BSR that UE is reported, and if Long BSR MAC CE, execute step B2, if
Short BSR MAC CE or Truncated BSR MAC CE execute step B3；
B2, macro base station determine macrocell and micro-base station cell respectively for four logic channel groups in Long BSR MAC CE
In uplink data to be transmitted amount；
B3, macro base station are for a logic channel group in Short BSR MAC CE or Truncated BSR MAC CE, really
Determine the uplink data to be transmitted amount in macrocell and micro-base station cell.
2. according to the method described in claim 1, it is characterized in that, further carrying macro base station distribution in signaling described in step C
Logic channel group mark corresponding to uplink data to be transmitted amount to micro-base station cell.
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| CN201310486470.9A CN104581948B (en) | 2013-10-17 | 2013-10-17 | A kind of BSR processing methods in dual link network |
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| CN110100491B (en) * | 2017-01-04 | 2023-03-14 | Oppo广东移动通信有限公司 | Information transmission method, terminal equipment and network equipment |
| CN112272388B (en) * | 2017-06-16 | 2023-04-25 | Oppo广东移动通信有限公司 | Method and device for transmitting information |
| CN109547176B9 (en) * | 2017-08-11 | 2022-07-01 | 华为技术有限公司 | Communication method and device |
| CN110225474B (en) | 2018-03-02 | 2021-08-13 | 华为技术有限公司 | Data volume reporting method under multi-connection |
| CN111669786B (en) * | 2020-04-20 | 2023-12-12 | 北京捷通华声科技股份有限公司 | Data caching method and device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104144512A (en) * | 2013-05-10 | 2014-11-12 | 上海贝尔股份有限公司 | Device and system for supporting multi-connection uplink scheduling information reporting |
| CN104349467A (en) * | 2013-08-01 | 2015-02-11 | 上海贝尔股份有限公司 | Multi-connection data bearer multi-flow transmission supporting method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104144512A (en) * | 2013-05-10 | 2014-11-12 | 上海贝尔股份有限公司 | Device and system for supporting multi-connection uplink scheduling information reporting |
| CN104349467A (en) * | 2013-08-01 | 2015-02-11 | 上海贝尔股份有限公司 | Multi-connection data bearer multi-flow transmission supporting method and device |
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