CN112714436A - Method for establishing separated load bearing - Google Patents
Method for establishing separated load bearing Download PDFInfo
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- CN112714436A CN112714436A CN202110009007.XA CN202110009007A CN112714436A CN 112714436 A CN112714436 A CN 112714436A CN 202110009007 A CN202110009007 A CN 202110009007A CN 112714436 A CN112714436 A CN 112714436A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000000926 separation method Methods 0.000 claims abstract description 26
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims description 12
- 230000011664 signaling Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 230000006870 function Effects 0.000 description 16
- 230000010076 replication Effects 0.000 description 8
- 238000005457 optimization Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 101001055444 Homo sapiens Mediator of RNA polymerase II transcription subunit 20 Proteins 0.000 description 2
- 102100026165 Mediator of RNA polymerase II transcription subunit 20 Human genes 0.000 description 2
- 108091005487 SCARB1 Proteins 0.000 description 2
- 102100037118 Scavenger receptor class B member 1 Human genes 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 101100150275 Caenorhabditis elegans srb-3 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000013468 resource allocation Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
- H04W8/24—Transfer of terminal data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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Abstract
The invention provides a method for establishing a separated load bearing, which comprises the following steps: step 1: the terminal accesses the network and establishes RRC connection with the base station main node; step 2: a base station main node initiates an NR capability query request to a terminal, and the terminal reports the NR capability; and step 3: a base station main node initiates an NR-DC capability query request to a terminal, and the terminal reports the NR-DC capability; and 4, step 4: a base station master node initiates a base station slave node measurement request to a terminal, and the terminal reports a base station slave node measurement result; and 5: the base station master node initiates a request for adding the base station slave node to the base station slave node, and the base station slave node responds to the base station master node; step 6: the base station master node initiates a request for adding the slave node cell to the terminal, and the terminal responds to the base station master node. The base station allocates the resource of the SRB on the slave node of the base station according to the separation bearing capacity of the SRB reported by the terminal, and if the SRB is not supported, the resource does not need to be allocated, so that the effect of avoiding the waste of the resource of the slave node of the base station is achieved.
Description
Technical Field
The invention relates to the technical field of separation bearing, in particular to a method for establishing separation bearing.
Background
When the terminal UE accesses the network, the base station queries the capability of the UE. And the UE supporting the NR-DC reports the NR capability and comprises the capability related to the NR-DC. And the base station supporting the NR-DC performs flow control and resource allocation according to the capability related to the NR-DC in the UE capability.
The definition of the parameter splitSRB-WithOneUL-Path is not clear, and when the value of the splitSRB-WithOneUL-Path is supported, the UE is shown to support the splitSRB function in the downlink, but the uplink is transmitted in the MCG; there is ambiguity when not filling the split srb-WithOneUL-Path parameter, one understanding that the UE does not support split srb functionality, and another understanding that the UE uplink can be transmitted on SCG and MCG, i.e. duplicated transmission capability for NR-DC.
The UE-NR-Capability has parameters indicating the copy transmission Capability for CA and no parameters indicating the copy transmission Capability for NR-DC, the base station always configures the copy transmission Capability of NR-DC uplink PDCP for the separation bearer, and the UE with small memory can only transmit on MCG when the memory is insufficient, thereby wasting the resources of SCG.
Description of abbreviations:
NR is 5 th generation mobile communication technology; NR-DC is NR double-connection technology, and the two-way connection of the NR-DC adopts NR technology; SRB is signaling radio bearer; the DRB is a service radio bearer; RRC reconfiguration is an RRC reconfiguration message through which the addition mentioned herein is requested from the node cell for transmission; the UE is a terminal; MN is a base station main node; SN is a slave node of the base station; (ii) a UE-NR-Capability is the NR-DC related Capability in UE Capability; the split SRB is an SRB1 and an SRB2 which are configured with a separation bearing function; the PDCP is a module for data transmission in the NR.
Patent document CN108307538A (application number: CN201610873253.9) discloses a method for establishing/reconfiguring a data bearer, comprising: receiving a data bearer establishment/reconfiguration request message, wherein the request message comprises a data bearer identifier and a bearer type indication information element, the data bearer identifier is used for identifying a data bearer, and the bearer type indication information element is used for indicating the type of the data bearer to be established/reconfigured; and establishing/reconfiguring the corresponding data bearer according to the request message.
Disclosure of Invention
In view of the defects in the prior art, the present invention aims to provide a method for establishing a split bearer.
The method for establishing the separated load bearing provided by the invention comprises the following steps:
step 1: the terminal accesses the network and establishes RRC connection with the base station main node;
step 2: a base station main node initiates an NR capability query request to a terminal, and the terminal reports the NR capability;
and step 3: a base station main node initiates an NR-DC capability query request to a terminal, and the terminal reports the NR-DC capability;
and 4, step 4: a base station master node initiates a base station slave node measurement request to a terminal, and the terminal reports a base station slave node measurement result;
and 5: the base station master node initiates a request for adding the base station slave node to the base station slave node, and sends the NR capability and the NR-DC capability reported by the terminal to the base station slave node, and the base station slave node responds to the base station master node;
step 6: the base station master node initiates a request for adding the slave node cell to the terminal, and the terminal responds to the base station master node.
Preferably, the terminal only indicates whether the NR-DC function is supported, reducing signaling overhead of NR capability;
the base station master node queries the terminal for NR-DC capability only when NR-DC functionality is supported.
Preferably, when the terminal supports NR-DC and supports signaling radio bearer separation bearer function, the base station master node informs the terminal to perform base station slave node measurement; otherwise, the base station master node informs the terminal to measure the slave node of the base station when the service is carried out.
Preferably, the base station master node analyzes the NR-DC capability of the terminal, and if the terminal has a split bearer capability, the base station master node requests to add a base station slave node resource of the split bearer in the base station slave node addition request, and the base station master node does not establish the split bearer for the terminal that does not have the signaling radio bearer split bearer capability.
Preferably, when the base station slave node agrees to add the separation bearer, the base station master node establishes the separation bearer in the request of adding the slave node cell;
when the separation bearing is established, the base station main node analyzes the NR-DC capability of the terminal, if the terminal has the uplink PDCP copying capability, the uplink PDCP copying function is configured for the separation bearing, and for the terminal without the uplink PDCP copying function, other transmission modes are used for improving the data throughput and reliability.
Compared with the prior art, the invention has the following beneficial effects:
1. in NR-DC, a base station allocates SN resources of SRB according to the SRB bearer separation function capability reported by UE, the UE does not support the SRB bearer separation function and does not need to allocate the SN resources of the SRB, and the effect of avoiding the waste of the SN resources is achieved;
2. the UE reports NR-DC uplink PDCP replication transmission capability, the NR-DC replication capability can increase the L2 cache of the UE, the UE with small memory can not support the NR-DC replication capability, at the moment, the base station does not configure the uplink PDCP replication transmission function of the UE, and the UE does not transmit repeated data on MCG and SCG, so that the memory is saved; if not, the base station always configures NR-DC uplink PDCP replication transmission capability for the separation bearer, when the memory of the UE with small memory is insufficient, the UE can only transmit on the MCG, SCG resources are wasted, the UE with small memory cannot process a long-time reordering timer, and downlink data loss occurs.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a diagram of a network node;
fig. 2 is a flow chart of establishment of a split bearer.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
Example (b):
fig. 1 is a network node diagram of the present invention, and fig. 2 is a network node diagram of the present invention, and the method for establishing a split bearer according to the present invention includes the following steps:
step 1: the UE accesses the network and establishes RRC connection with the MN;
step 2: the MN inquires the NR capability of the UE, the UE reports the NR capability, the NR capability indicates whether to support NR-DC, the optimization result is that the UE only indicates whether to support NR-DC, the signaling overhead of the NR capability is reduced, the UE NR capability is conveniently transmitted in a narrowband cell, the MN only needs to inquire the NR-DC capability of the UE when supporting the NR-DC, and the inquiry opportunity is more flexible;
and step 3: MN inquires about NR-DC ability of UE, UE reports NR-DC ability, here the optimization result is that NR-DC ability is more complete;
and 4, step 4: if the UE supports NR-DC and supports SRB separate bearer function or SRB3 function, MN informs UE to measure SN; otherwise, the MN informs the UE to perform SN measurement when performing service, and the optimized result avoids configuring a measurement gap for measuring SN in the processes of registration updating and the like, reduces process interaction and avoids wasting system resources;
and 5: UE reports SN measurement results;
step 6: MN sends SN adding request to SN, and sends NR capability and NR-DC capability reported by UE to SN;
step 6.1: the MN analyzes the NR-DC capability of the UE, if the UE has the separation bearing capability, the MN requests to add the SN resource of the separation bearing in the SN adding request, and the optimization result is that the NR-DC capability reported by the UE in the step 3 clearly indicates the SRB separation bearing capability, for the UE which does not support the SRB separation bearing capability, the MN does not need to establish unnecessary separation bearing, and the SCG resource is wasted;
and 7: the SN sends a successful SN addition request response to the MN;
and 8: MN sends SCG adding request to UE;
step 8.1: if the SN agrees to add the separation bearer, the MN establishes the separation bearer in the SCG adding request, the SRB1, the SRB2 and the DRB can be configured as the separation bearer, when the separation bearer is established, the MN analyzes the NR-DC capability of the UE, and if the UE has the uplink PDCP replication capability, the uplink PDCP replication function can be configured for the separation bearer. The optimization result is that the capability of the uplink PDCP copy function is clearly indicated in the NR-DC capability reported by the UE in the step 3, and for the UE which does not support the uplink PDCP copy function, other transmission modes can be used for improving the data throughput and reliability;
and step 9: the UE sends a successful add SCG request response to the MN.
Modifying protocol description and ASN definition:
adding a parameter in UE-NR-Capability to indicate whether NR-DC is supported;
UE-NRDC-Capability description is added to explicitly specify whether SRB split bearer and NR-DC replication functions are supported.
Those skilled in the art will appreciate that, in addition to implementing the systems, apparatus, and various modules thereof provided by the present invention in purely computer readable program code, the same procedures can be implemented entirely by logically programming method steps such that the systems, apparatus, and various modules thereof are provided in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Therefore, the system, the device and the modules thereof provided by the present invention can be considered as a hardware component, and the modules included in the system, the device and the modules thereof for implementing various programs can also be considered as structures in the hardware component; modules for performing various functions may also be considered to be both software programs for performing the methods and structures within hardware components.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (5)
1. A method for establishing a split bearer, comprising:
step 1: the terminal accesses the network and establishes RRC connection with the base station main node;
step 2: a base station main node initiates an NR capability query request to a terminal, and the terminal reports the NR capability;
and step 3: a base station main node initiates an NR-DC capability query request to a terminal, and the terminal reports the NR-DC capability;
and 4, step 4: a base station master node initiates a base station slave node measurement request to a terminal, and the terminal reports a base station slave node measurement result;
and 5: the base station master node initiates a request for adding the base station slave node to the base station slave node, and sends the NR capability and the NR-DC capability reported by the terminal to the base station slave node, and the base station slave node responds to the base station master node;
step 6: the base station master node initiates a request for adding the slave node cell to the terminal, and the terminal responds to the base station master node.
2. The method for establishing a split bearer according to claim 1, wherein the terminal only indicates whether the NR-DC function is supported, and the NR-DC capability is queried separately, so as to reduce signaling overhead of the NR capability;
the base station master node queries the terminal for NR-DC capability only when NR-DC functionality is supported.
3. The method of claim 1, wherein when the terminal supports NR-DC and signaling radio bearer separation bearer function, the base station master node informs the terminal to perform base station slave node measurement; otherwise, the base station master node informs the terminal to measure the slave node of the base station when the service is carried out.
4. The method of claim 1, wherein the base station master node analyzes NR-DC capability of the terminal, and if the terminal has split bearer capability, the base station master node requests the base station slave node resource of the split bearer to be added in the request of adding the base station slave node, and for the terminal without signaling radio bearer split bearer capability, the base station master node does not establish the split bearer.
5. The method of claim 1, wherein when the slave node of the base station agrees to add the split bearer, the master node of the base station establishes the split bearer in the cell request of the slave node;
when the separation bearing is established, the base station main node analyzes the NR-DC capability of the terminal, if the terminal has the uplink PDCP copying capability, the uplink PDCP copying function is configured for the separation bearing, and for the terminal without the uplink PDCP copying function, other transmission modes are used for improving the data throughput and reliability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110009007.XA CN112714436A (en) | 2021-01-05 | 2021-01-05 | Method for establishing separated load bearing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110009007.XA CN112714436A (en) | 2021-01-05 | 2021-01-05 | Method for establishing separated load bearing |
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| CN112714436A true CN112714436A (en) | 2021-04-27 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110267301A (en) * | 2019-05-31 | 2019-09-20 | 长安大学 | Terminal capability acquisition methods in a kind of doubly-linked welding system |
| US20200169917A1 (en) * | 2017-08-10 | 2020-05-28 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method and device for controlling copy data transmission function in dual connection |
| CN111586624A (en) * | 2019-02-18 | 2020-08-25 | ***通信有限公司研究院 | Terminal capability determination method and device and computer readable storage medium |
| CN111757292A (en) * | 2019-03-29 | 2020-10-09 | ***通信有限公司研究院 | Dual-connection method and device |
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2021
- 2021-01-05 CN CN202110009007.XA patent/CN112714436A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200169917A1 (en) * | 2017-08-10 | 2020-05-28 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method and device for controlling copy data transmission function in dual connection |
| CN111586624A (en) * | 2019-02-18 | 2020-08-25 | ***通信有限公司研究院 | Terminal capability determination method and device and computer readable storage medium |
| CN111757292A (en) * | 2019-03-29 | 2020-10-09 | ***通信有限公司研究院 | Dual-connection method and device |
| CN110267301A (en) * | 2019-05-31 | 2019-09-20 | 长安大学 | Terminal capability acquisition methods in a kind of doubly-linked welding system |
Non-Patent Citations (3)
| Title |
|---|
| HUAWEI, HISILICON: ""R2-2010857-Corrections on PDCP duplication capability for NR-DC"", 《3GPP TSG-RAN2 MEETING #112 ELECTRONIC》 * |
| MEDIATEK INC: ""R2-2000684-Correction on SRB capability in NR-DC"", 《3GPP TSG-RAN WG2 MEETING #109-E》 * |
| TECHNICAL SPECIFICATION GROUP CORE NETWORK AND TERMINALS: ""3GPP TS 24.301 V16.7.0"", 《3RD GENERATION PARTNERSHIP PROJECT》 * |
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Application publication date: 20210427 |