CN104581679B - A kind of BSR report methods in dual link network - Google Patents

A kind of BSR report methods in dual link network Download PDF

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Publication number
CN104581679B
CN104581679B CN201310487268.8A CN201310487268A CN104581679B CN 104581679 B CN104581679 B CN 104581679B CN 201310487268 A CN201310487268 A CN 201310487268A CN 104581679 B CN104581679 B CN 104581679B
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base station
logic channel
bsr
micro
channel group
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CN104581679A (en
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张欢
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Potevio Institute of Technology Co Ltd
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Potevio Institute of Technology Co Ltd
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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
    • 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

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

Abstract

This application discloses the buffer status reports in a kind of dual link network（BSR）Report method, network side ensure to be located in different logic channel groups by the logic channel that different base station is safeguarded when user equipment (UE) is controlled to establish logic channel and carries out logic channel grouping；This method includes：A, UE reports BSR to macro base station；B, the mark for the logic channel group that macro base station safeguards micro-base station in the BSR and the corresponding uplink data to be transmitted amount of the logic channel group are sent to micro-base station by the interface between macro base station and micro-base station；C, logic channel group and its corresponding uplink data to be transmitted amount of the macro base station according to the self maintained indicated in the BSR received sends uplink scheduling instruction to UE；The logic channel group and its corresponding uplink data to be transmitted amount that micro-base station is notified according to macro base station send uplink scheduling instruction to UE.Disclosed herein as well is the BSR report methods in another dual link network.The application reports for how carrying out BSR in dual link network and provides feasible solution.

Description

A kind of BSR report methods in dual link network
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）Report method.
Background technology
Dual link network is the research hotspot of Current wireless communication technology, in dual link network communication, 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, so as 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 be connected 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, it, can be with when UE is moved inside macrocell and is entered or leaves a micro-base station cell Handoff procedure is not performed, and resource reconfiguration process is simply used by macro base station to be configured for UE or discharge micro-base station cell money Source, the relevant control process that core net performs at this time will greatly reduce, so as to reduce core network signalling load, further, since not Handoff procedure is performed, the mobility performance of network there will be larger improvement.It can be seen that network can be reduced by introducing dual link communication Signaling traffic load, 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）The uplink data to be transferred amount of UE is used to indicate, ascending resource is distributed in base station according to the BSR received for UE.BSR is reported It is medium education（The function of MAC 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 form of Short BSR MAC CE and Truncated BSR MAC CE are as shown in Figure 2.Both MAC The buffer status of a logic channel group is only included in CE." LCG ID " therein refers to that logic channel group identifies, " Buffer Size " is the buffer status of this logic channel group.
The form of Long BSR MAC CE is as shown in Figure 3.The caching shape of four logic channel groups is included 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 represents 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 is when controlling UE to establish a logic channel, it is necessary to indicate one Logic channel group identifies, for by this logical channel assignment, into the logic channel group, UE to be based on each logic channel afterwards 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, all 4 are included in Long BSR MAC CE The BSR of a logic channel group, and arrange in order.
Do not consider that BSR how is carried out in dual link network to be reported also in the prior art.
The content of the invention
This application provides the BSR report methods in a kind of dual link network, for how to carry out BSR in dual link network It reports and provides feasible solution.
The embodiment of the present application provides the BSR report methods in a kind of dual link network, and network side is in control user equipment When UE establishes logic channel and carries out logic channel grouping, ensure to be located at different logics by the logic channel that different base station is safeguarded In channel group；This method includes：
A, UE reports BSR to macro base station；
B, the mark for the logic channel group that macro base station safeguards micro-base station in the BSR and the logic channel group correspond to Uplink data to be transmitted amount micro-base station is sent to by the interface between macro base station and micro-base station；
C, macro base station is to be passed according to the logic channel group of the self maintained indicated in the BSR received and its corresponding uplink Transmission of data amount sends uplink scheduling instruction to UE；The logic channel group and its corresponding uplink that micro-base station is notified according to macro base station Data to be transmitted amount sends uplink scheduling instruction to UE.
It is preferred that step B includes：
B1, macro base station judgement receive the BSR forms that UE is reported, and if Long BSR MAC CE, perform step B2, if Short BSR MAC CE or Truncated BSR MAC CE perform step B3；
Whether B2, macro base station judge the logic channel group of the buffer status non-zero in Long BSR MAC CE by micro-base station It safeguards, if it is, entire Long BSR MAC CE are transmitted to micro-base station by macro base station, is tieed up alternatively, generation is included by micro-base station The signaling of the mark of the logic channel group of shield and corresponding uplink data to be transmitted amount, and the signaling is sent to micro-base station； And end step B；
Whether the logic channel group that B3, macro base station judge to include in BSR is safeguarded by micro-base station, if it is, macro base station will The BSR is transmitted to micro-base station.
The embodiment of the present application additionally provides the BSR report methods in another dual link network, and network side is in control user When equipment UE establishes logic channel and carries out logic channel grouping, ensure by the logic channel that different base station is safeguarded positioned at different In logic channel group；This method includes：
A, user equipment (UE) judges the BSR forms to be reported, and if Long BSR MAC CE, performs step b, if Short BSR MAC CE or Truncated BSR MAC CE perform step d；
B, UE judges whether the logic channel group of buffer status non-zero in Long BSR MAC CE is tieed up by same base station Shield, if so, Long BSR MAC CE are reported to the base station；Otherwise step c is performed；
C, the Long BSR MAC CE are split as multiple Short BSR MAC CE by UE, the logic that macro base station is safeguarded The corresponding Short BSR MAC CE of channel group are individually reported to macro base station, and the logic channel group that micro-base station is safeguarded is corresponding Short BSR MAC CE are individually reported to micro-base station；Alternatively, the Long BSR MAC CE are reported macro base station and micro- by UE respectively Base station, and terminate this flow；
D, UE judges that the logic channel group in Short BSR MAC CE or Truncated BSR MAC CE is by which Short BSR MAC CE or Truncated BSR MAC CE are reported to the base station by base station maintenance.
As can be seen from the above technical solutions, UE reports BSR to macro base station, and macro base station is patrolled what micro-base station was safeguarded afterwards The BSR for collecting channel group is sent to micro-base station by the interface between macro base station and micro-base station, the uplink being used to indicate in Microcell Data to be transmitted amount, micro-base station carry out uplink scheduling according to the BSR to UE；Alternatively, UE is straight by the BSR of Different Logic channel group It connected different connections of eating dishes without rice or wine and is reported to corresponding base station, the BSR that base station is reported according to UE carries out uplink scheduling.The application couple How to carry out BSR in dual link network and report to provide feasible solution.
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 report method flow charts of embodiment one；
Fig. 5 is the schematic diagram of the Long BSR MAC CE that UE is reported in the embodiment of the present application；
Fig. 6 is generated for a kind of macro base station of the embodiment of the present application and is sent to the schematic diagram of the BSR of micro-base station；
Fig. 7 is showing for Short BSR MAC CE or Truncated the BSR MACCE that UE is reported in the embodiment of the present application It is intended to.
Specific embodiment
To make the technical principle of technical scheme, feature and technique effect clearer, below in conjunction with specific reality Example is applied technical scheme is described in detail.
For convenience of description, the embodiment of the present application assumes following simple scenario：Same logic channel can only be by a base It stands maintenance, i.e. the data of some logic channel can only be transmitted by some corresponding base station, and UE can only be by this logic channel Upstream data be sent to this corresponding base station.Illustrate that logic channel grouping and BSR report scheme to the scene below.
The embodiment of the present application logic channel grouping scheme basic principle be：The logic channel that different base station is safeguarded belongs to Different logic channel groups.
Due to the macro base station logic channel different from micro-base station maintenance, each base station only needs to know what oneself was safeguarded The buffer status of logic channel, so as to distribute the ascending resource of this cell for UE.Network side establishes logic channel simultaneously in control UE , it is necessary to ensure to be located in different logic channel groups by the logic channel that different base station is safeguarded, such as when carrying out logic channel grouping The logic channel that macro base station is safeguarded belongs to No. 0 or No. 1 logic channel group, and the logic channel that micro-base station is safeguarded is all Belong to No. 2 or No. 3 logic channel group.If the logic channel that different base station is safeguarded is located in same logic channel group, When base station receives the BSR of the logic channel group, it is patrolling of to one's name being safeguarded that wherein how many data to be transferred, which cannot be distinguished, Channel is collected, therefore can not know and be this UE distributes how many ascending resource.
Two kinds of BSR, which are provided, based on the constraint of more than logic channel grouping, in the embodiment of the present application reports scheme.
Embodiment one：UE reports BSRs of the BSR to macro base station, afterwards the logic channel group that macro base station safeguards micro-base station Micro-base station is sent to by the interface between macro base station and micro-base station, the uplink data to be transmitted amount being used to indicate in Microcell, Micro-base station carries out uplink scheduling according to the BSR to UE.
If macro base station receives the Long BSR MAC CE that UE is reported, wherein including the slow of whole four logic channel groups State is deposited, macro base station needs whether the logic channel group for judging buffer status non-zero therein is safeguarded by micro-base station, if it is, Entire BSR can be transmitted to micro-base station by macro base station, can also be only by some specifically by the logic channel group of micro-base station maintenance BSR notify to micro-base station.
If macro base station receives Short BSR MAC CE or Truncated the BSR MAC CE that UE is reported, wherein only wrapping Buffer status containing a logic channel group, macro base station judge whether this logic channel group is safeguarded by micro-base station, if it is, The BSR is transmitted to micro-base station by macro base station.
It should be noted that in order to indicate the uplink data to be transmitted amount in Microcell, macro base station can be sent out to micro-base station Send existing BSR, or the new signaling format of Interface design between two base stations, wherein needing to indicate logic channel group Mark and corresponding uplink data to be transmitted amount.
The BSR report methods flow of embodiment one is as shown in figure 4, include the following steps：
Step 401：BSR is reported to macro base station by UE.
Step 402：The mark for the logic channel group that macro base station safeguards micro-base station in the BSR and the logic channel The corresponding uplink data to be transmitted amount of group is sent to micro-base station by the interface between macro base station and micro-base station.
Step 403：Macro base station according to the logic channel group of the self maintained indicated in the BSR received and its it is corresponding on Row data to be transmitted amount sends uplink scheduling instruction to UE.
Step 404：The logic channel group and its corresponding uplink data to be transmitted amount that micro-base station is notified according to macro base station, to UE sends uplink scheduling instruction.
It is preferred that step 402 includes following sub-step：
Sub-step 402-1：Macro base station judgement receives the BSR forms that UE is reported, and if Long BSR MAC CE, performs son Step 402-2 if Short BSR MAC CE or Truncated BSR MAC CE, performs sub-step 402-3；
Sub-step 402-2, macro base station judge whether the logic channel group of the buffer status non-zero in BSR is tieed up by micro-base station Shield, if it is, entire BSR is transmitted to micro-base station by macro base station, alternatively, generation includes the logic channel group safeguarded by micro-base station Mark and corresponding uplink data to be transmitted amount signaling, and the signaling is sent to micro-base station；And end step 402；
Whether the logic channel group that sub-step 402-3, macro base station judge to include in BSR safeguarded by micro-base station, if it is, The BSR is transmitted to micro-base station by macro base station.
For those skilled in the art is made to be easier to understand the program, illustrated below by way of a specific example.Assuming that Logic channel in logic channel group 0 and 2 is safeguarded that the logic channel in logic channel group 1 and 3 is by micro-base station by macro base station It safeguards.
If UE reports the Long BSR MAC CE shown in Fig. 5 to macro base station.After receiving the BSR, macro base station judgement is patrolled Collecting channel group 0 and 1 has data to be transferred, and logic channel group 1 is safeguarded by micro-base station, then macro base station can be by entire BSR Micro-base station is transmitted to, BSR as shown in Figure 6 can also be generated and is sent to micro-base station.
If UE reports Short BSR MAC CE or Truncated BSR MAC CE shown in Fig. 7 to be received to macro base station To after the BSR, macro base station decision logic channel group 1 is safeguarded by micro-base station, then the BSR is transmitted to micro- base by macro base station It stands.
In embodiment one, that macro base station is sent to micro-base station is exactly existing BSR, or connecing between two base stations Mouth designs new signaling format, wherein needing to indicate logic channel group mark and corresponding uplink data to be transmitted amount.
Embodiment two：The BSR of Different Logic channel group is directly reported to corresponding base by UE by different connections of eating dishes without rice or wine It stands, the BSR that base station is reported according to UE carries out uplink scheduling.
For Long BSR MAC CE, UE needs to judge which base is the logic channel group of wherein buffer status non-zero be by It stands what is safeguarded, and the Long BSR MAC CE is reported to this base station.If the logic channel group of buffer status non-zero Some are safeguarded that other is safeguarded by micro-base station by macro base station, then the Long BSR MAC CE are reported to macro base station by UE simultaneously With micro-base station, only the BSR of specific logic channel group can also be notified to corresponding base station, it at this time can be by the Long BSR MAC CE are split as multiple Short BSR MAC CE, the corresponding Short BSR of logic channel group for such as safeguarding macro base station MAC CE are individually reported to macro base station, and the corresponding Short BSR MAC CE of logic channel group that micro-base station is safeguarded individually are reported To micro-base station.If the logic channel group of buffer status non-zero is all by a base station maintenance, UE is only by the Long BSR MAC CE are reported to this base station.
Judge that this logic channel group is by which for Short BSR MAC CE or Truncated BSR MAC CE, UE A base station maintenance, the BSR is only reported to this base station afterwards.
Assuming that the logic channel in logic channel group 0 and 2 is safeguarded by macro base station, the logic letter in logic channel group 1 and 3 It is safeguarded by micro-base station in road.
If Long BSR MAC CE, UE that UE generates shown in Fig. 5 judge that wherein logic channel group 0 is safeguarded by macro base station, Logic channel group 1 is safeguarded that then the BSR is reported to macro base station and micro-base station by UE respectively by micro-base station, can also be by the Long BSR MAC CE split into two Short BSR MAC CE, on the wherein Short BSR MAC CE of counterlogic channel group 0 Macro base station is offered, the Short BSR MAC CE of counterlogic channel group 1 are reported to micro-base station.
If UE generates Short BSR MAC CE or Truncated BSR MAC CE shown in Fig. 7, UE judges wherein Logic channel group 1 is safeguarded that then the BSR is only reported to micro-base station by UE by micro-base station.
The foregoing is merely the preferred embodiment of the application, not to limit the protection domain of the application, it is all The spirit of technical scheme and any modification, equivalent substitution, improvement and etc. within principle, done, should be included in this Shen Within the scope of please protecting.

Claims (2)

1. the buffer status report BSR report methods in a kind of dual link network, which is characterized in that network side is set in control user When standby UE establishes logic channel and carries out logic channel grouping, ensure that the logic channel safeguarded by different base station is located at different patrol It collects in channel group；This method includes：
A, UE reports BSR to macro base station；
B, the mark for the logic channel group that macro base station safeguards micro-base station in the BSR and the logic channel group it is corresponding on Row data to be transmitted amount is sent to micro-base station by the interface between macro base station and micro-base station；
C, macro base station is according to the logic channel group of the self maintained indicated in the BSR received and its corresponding uplink number to be transmitted According to amount, uplink scheduling instruction is sent to UE；The logic channel group and its corresponding uplink that micro-base station is notified according to macro base station are to be passed Transmission of data amount sends uplink scheduling instruction to UE；
Step B includes：
B1, macro base station judgement receive the BSR forms that UE is reported, and if Long BSR MAC CE, step B2 are performed, if Short BSR MAC CE or Truncated BSR MAC CE perform step B3；
B2, macro base station judge whether the logic channel group of the buffer status non-zero in Long BSR MAC CE is safeguarded by micro-base station, If it is, entire Long BSR MAC CE are transmitted to micro-base station by macro base station, alternatively, generation is comprising by micro-base station maintenance The signaling of the mark of logic channel group and corresponding uplink data to be transmitted amount, and the signaling is sent to micro-base station；And it ties Beam step B；
Whether the logic channel group that B3, macro base station judge to include in BSR safeguarded by micro-base station, if it is, macro base station is by the BSR It is transmitted to micro-base station.
2. the buffer status report BSR report methods in a kind of dual link network, which is characterized in that network side is set in control user When standby UE establishes logic channel and carries out logic channel grouping, ensure that the logic channel safeguarded by different base station is located at different patrol It collects in channel group；This method includes：
A, user equipment (UE) judges the BSR forms to be reported, and if Long BSR MAC CE, step b is performed, if Short BSR MAC CE or Truncated BSR MAC CE perform step d；
B, whether UE judges the logic channel group of buffer status non-zero in Long BSR MAC CE by same base station maintenance, if It is that Long BSR MAC CE are reported to the base station；Otherwise step c is performed；
C, the Long BSR MAC CE are split as multiple Short BSR MAC CE by UE, the logic channel that macro base station is safeguarded The corresponding Short BSR MAC CE of group are individually reported to macro base station, the corresponding Short of logic channel group that micro-base station is safeguarded BSR MAC CE are individually reported to micro-base station；Alternatively, the Long BSR MAC CE are reported macro base station and micro-base station by UE respectively, And terminate this flow；
D, UE judges which base station is the logic channel group in Short BSR MAC CE or Truncated BSR MAC CE be by It safeguards, Short BSR MAC CE or Truncated BSR MAC CE is reported to the base station.
CN201310487268.8A 2013-10-17 2013-10-17 A kind of BSR report methods in dual link network Expired - Fee Related CN104581679B (en)

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US10945155B2 (en) 2016-10-19 2021-03-09 Huawei Technologies Co., Ltd. Method and apparatus for transmitting buffer status report
CN108391286B (en) * 2017-02-03 2019-09-17 电信科学技术研究院 Obtain method, network side equipment and the terminal with reporting buffer zone state
CN113727390B (en) * 2021-08-23 2023-07-07 中国联合网络通信集团有限公司 Data transmission method, device and communication system
CN113891398B (en) * 2021-10-27 2023-07-11 中国联合网络通信集团有限公司 Resource determination method, equipment and storage medium

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