CN108811021B - Method and device used in user equipment and base station for wireless communication - Google Patents

Method and device used in user equipment and base station for wireless communication Download PDF

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CN108811021B
CN108811021B CN201710317303.XA CN201710317303A CN108811021B CN 108811021 B CN108811021 B CN 108811021B CN 201710317303 A CN201710317303 A CN 201710317303A CN 108811021 B CN108811021 B CN 108811021B
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bearer
cell group
cell
type
link
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CN108811021A (en
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张晓博
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Shanghai Langbo Communication Technology Co Ltd
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Shanghai Langbo Communication Technology Co Ltd
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Priority to CN202011115413.6A priority Critical patent/CN112218349A/en
Priority to CN202011115415.5A priority patent/CN112218350B/en
Priority to CN201710317303.XA priority patent/CN108811021B/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0027—Control or signalling for completing the hand-off for data sessions of end-to-end connection for a plurality of data sessions of end-to-end connections, e.g. multi-call or multi-bearer end-to-end data connections
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data

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

Abstract

The application discloses a method and a device in a user equipment, a base station and the like used for wireless communication. The UE transmits a first wireless signal. Wherein the first wireless signal comprises a first report. The first report is related to a channel quality of the first link, a channel quality of the second link, and a channel quality of the third link. The first report is used to determine the user equipment handover. The first link is a wireless link from a base station corresponding to a first cell to the user equipment, the second link is a wireless link from a base station corresponding to a second cell to the user equipment, and the third link is a wireless link from a base station corresponding to a third cell to the user equipment. By designing the first wireless signal, the switching process in the double-link transmission is optimized to realize lossless switching, and the overall performance of the system is improved.

Description

Method and device used in user equipment and base station for wireless communication
Technical Field
The present application relates to handover schemes in wireless communication systems, and more particularly, to methods and apparatus for handover transmission between access networks based on dual links.
Background
In lte (longterm evolution) systems, handover of Dual Connectivity (DC) communication occurs only between Master Cell Groups (MCGs). In a dual-link communication scenario, a base station corresponding to a master Cell Group releases a Secondary Cell Group (SCG) before handover, and then switches to another master Cell Group. This interrupts the transmission of radio data carried on the secondary cell group.
In the NR (newradio) system, LTE-NR coupling communication (rightinterworking) is an important scenario. LTE-NR coupled communication is also referred to as LTE-NR DC, and in some scenarios, an LTE cell group belongs to a master cell group and an NR cell belongs to a secondary cell group. When a handover occurs, if the base station releases the secondary cell group corresponding to the NR cell first and then performs a handover in accordance with the LTE DC processing manner, the transmission of wireless data on the NR cell may be interrupted. Some services in the NR system are delay sensitive services, and interruption of transmission during handover may cause QoS requirements of the delay sensitive services to not meet standards. Meanwhile, there is also a handover between different RATs (radio access technologies) in the NR system. Enhancements are therefore needed for LTE-NR coupled communications to ensure that no transmission interruptions occur at handover.
Disclosure of Invention
The inventor finds out through research that: if the processing mode is similar to that of the LTE DC, the base station releases the auxiliary cell group corresponding to the NR cell first and then performs switching, so that the transmission of wireless data on the NR cell is interrupted. Some services in the NR system are delay sensitive services, and interruption of transmission during handover may cause QoS requirements of the delay sensitive services to not meet standards, and at the same time, lossless handover may not be achieved.
The present application provides a solution to the above problems. It should be noted that the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without conflict. For example, embodiments and features in embodiments in the UE of the present application may apply to the base station and vice versa.
The application discloses a method used in a user equipment for wireless communication, characterized by comprising:
step A, sending a first wireless signal;
wherein the first wireless signal comprises a first report; the first report is related to the channel quality of the first link, the channel quality of the second link and the channel quality of the third link; the first report is used to determine the user equipment handover; the first link is a wireless link from a base station corresponding to a first cell to the user equipment, the second link is a wireless link from a base station corresponding to a second cell to the user equipment, and the third link is a wireless link from a base station corresponding to a third cell to the user equipment; the channel quality is at least one of { RSRP, RSRQ, RSSI }; the first cell belongs to a first cell group, the second cell belongs to a second cell group, and the third cell belongs to a third cell group; the first cell and the second cell are both camping cells of the user equipment; the first and second cell groups belong to different RATs, the second and third cell groups belong to the same RAT.
As a sub-embodiment, the RAT comprises at least one of:
GERAN (GSM EDGE Radio Access Network, GSM and EDGE Radio Access Network), wherein GSM corresponds to Global System for Mobile Communication (Global System for Mobile Communication) and EDGE corresponds to Enhanced Data Rate for GSM Evolution (Enhanced Data Rate for GSM Evolution);
UTRA-FDD (UMTS Terrestrial Radio Access-Frequency Domain Duplex, UMTS Terrestrial Radio Access Frequency division Duplex), wherein UMTS corresponds to universal mobile telecommunications system (universal mobile telecommunications system);
UTRA-TDD (UTRA-Time Domain Duplex, UMTS terrestrial radio Access Time division Duplex),
CDMA (Code Division Multiple Access) 2000,
-WLAN (Wireless Local Area Networks);
EUTRA (Evolved-UTRA, Evolved UMTS terrestrial radio access);
-NR (NewRadio );
the application discloses a method in a first base station used for wireless communication, characterized by comprising:
step A, receiving a first wireless signal;
wherein the first wireless signal comprises a first report; the first report is related to the channel quality of the first link, the channel quality of the second link and the channel quality of the third link; the first report is used to determine the user equipment handover; the first link is a wireless link from a base station corresponding to a first cell to the user equipment, the second link is a wireless link from a base station corresponding to a second cell to the user equipment, and the third link is a wireless link from a base station corresponding to a third cell to the user equipment; the channel quality is at least one of { RSRP, RSRQ, RSSI }; the first cell belongs to a first cell group, the second cell belongs to a second cell group, and the third cell belongs to a third cell group; the first cell and the second cell are both camping cells of the user equipment; the first and second cell groups belong to different RATs, the second and third cell groups belong to the same RAT.
The application discloses a method in a second base station used for wireless communication, characterized by comprising:
step A, receiving a second signaling;
wherein the second signaling is used to request a handover from the second base station. And the second signaling comprises second cell group invariance indication information.
The application discloses a user equipment used for wireless communication, characterized by comprising:
the first processing module is used for sending a first wireless signal;
wherein the first wireless signal comprises a first report; the first report is related to the channel quality of the first link, the channel quality of the second link and the channel quality of the third link; the first report is used to determine the user equipment handover; the first link is a wireless link from a base station corresponding to a first cell to the user equipment, the second link is a wireless link from a base station corresponding to a second cell to the user equipment, and the third link is a wireless link from a base station corresponding to a third cell to the user equipment; the channel quality is at least one of { RSRP, RSRQ, RSSI }; the first cell belongs to a first cell group, the second cell belongs to a second cell group, and the third cell belongs to a third cell group; the first cell and the second cell are both camping cells of the user equipment; the first and second cell groups belong to different RATs, the second and third cell groups belong to the same RAT.
The present application discloses a first base station apparatus used for wireless communication, characterized by comprising:
the second processing module receives the first wireless signal;
wherein the first wireless signal comprises a first report; the first report is related to the channel quality of the first link, the channel quality of the second link and the channel quality of the third link; the first report is used to determine the user equipment handover; the first link is a wireless link from a base station corresponding to a first cell to the user equipment, the second link is a wireless link from a base station corresponding to a second cell to the user equipment, and the third link is a wireless link from a base station corresponding to a third cell to the user equipment; the channel quality is at least one of { RSRP, RSRQ, RSSI }; the first cell belongs to a first cell group, the second cell belongs to a second cell group, and the third cell belongs to a third cell group; the first cell and the second cell are both camping cells of the user equipment; the first and second cell groups belong to different RATs, the second and third cell groups belong to the same RAT.
The present application discloses a second base station apparatus used for wireless communication, characterized by comprising:
the third processing module receives a second signaling;
wherein the second signaling is used to request a handover to the second base station device; and the second signaling comprises second cell group invariance indication information.
As a sub-embodiment, compared with the prior art, the present application has the following technical advantages:
by keeping the linkage of the auxiliary cell group during switching, the data transmission is ensured not to be interrupted, and the QoS requirement of the delay sensitive service is met.
And further, the separated data bearer is reconfigured, so that the separated data bearer is ensured to be switched to the auxiliary cell group for transmission during switching, the data transmission is ensured not to be interrupted, and the QoS requirement of the delay sensitive service is met.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 shows a flow diagram of signal transmission according to an embodiment of the present application;
FIG. 2 shows a flow diagram of signal transmission according to another embodiment of the present application;
FIG. 3 shows a flow diagram of signal transmission according to another embodiment of the present application;
fig. 4 shows a block diagram of a processing means in a user equipment according to an embodiment of the present application;
fig. 5 shows a block diagram of a processing means in a first base station according to an embodiment of the present application;
fig. 6 shows a block diagram of a processing means in a second base station according to an embodiment of the present application;
FIG. 7 shows a schematic diagram of base station side and user side radio bearers in a dual link according to an embodiment of the present application;
fig. 8 shows a schematic diagram of control information transmission in dual link according to an embodiment of the application.
Detailed Description
The technical solutions of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that the embodiments and features of the embodiments of the present application can be arbitrarily combined with each other without conflict.
Example 1
Embodiment 1 illustrates a flow chart of signal transmission, as shown in fig. 1.
For theUE U1Sending a first radio signal to the base station N2 at step S10, maintaining a first bearer and a second bearer at step S11, establishing the first bearer at step S12, releasing the first bearer at step S13, releasing a set of higher layer entities corresponding to the first bearer and releasing a first logical channel at step S131, maintaining the set of higher layer entities corresponding to the second bearer and maintaining the first logical channel at step S132, establishing a first entity corresponding to the second cell group for a split data radio bearer at step S14, reconfiguring at least one of { a second entity, the first logical channel, the second logical channel } corresponding to the second cell group for the split data radio bearer, receiving a first signaling at step S15, and receiving a second radio signal at step S16.
For theBase station N2Receiving the first wireless signal at step S20, transmitting the second signaling at step S21, receiving the third signaling at step S22, maintaining at least one of { bearer of the first type, bearer of the second type } at step S23One of the steps includes establishing the first bearer in step S24, releasing the first bearer in step S25, releasing the set of higher layer entities corresponding to the first bearer and releasing a first type of logical channel in step S251, maintaining the set of higher layer entities corresponding to the second bearer and maintaining the first type of logical channel in step S252, establishing the first type of entities corresponding to the second cell group for separate data radio bearers in step S26, reconfiguring at least one of { second type of entities, the first type of logical channel, the second type of logical channel } corresponding to the second cell group for separate data radio bearers, sending a first signaling in step S27, and sending a second radio signal in step S28.
For theBase station N3The second signaling is received at step S30, and the third signaling is transmitted at step S31.
In embodiment 1, the first wireless signal comprises a first report; the first report is related to the channel quality of the first link, the channel quality of the second link and the channel quality of the third link; the first report is used to determine the user equipment handover; the first link is a wireless link from a base station corresponding to a first cell to the user equipment, the second link is a wireless link from a base station corresponding to a second cell to the user equipment, and the third link is a wireless link from a base station corresponding to a third cell to the user equipment; the channel quality is at least one of { RSRP, RSRQ, RSSI }; the first cell belongs to a first cell group, the second cell belongs to a second cell group, and the third cell belongs to a third cell group; the first cell and the second cell are both camping cells of the user equipment; the first and second cell groups belong to different RATs, the second and third cell groups belong to the same RAT. The first type of bearer is used for carrying control signaling, and the second type of bearer is used for carrying data information; the first type bearer comprises at least the former of { first bearer, second bearer }; the first bearer is used to determine a configuration of { the first cell group, the second cell group }; the second bearer is used to determine a configuration of the second cell group. The first type bearer is the first bearer, which is a bearer of the second cell group; or the first bearer is the second bearer, and the second bearer is a bearer of the first cell group. The first type bearer is the first bearer, which is a bearer of the first cell group. The keeping refers to that the user equipment does not release (deallocated) the high-level entity set and the first-class logical channel corresponding to the second cell group. The first type entity corresponding to the second cell group is established and includes at least one of { configuration discard clock, configuration RLC (Radio Link Control, Radio Link layer Control Protocol) mode, PDCP (Packet Data Convergence Protocol) SN (Sequence Number), header compression algorithm, and status report feedback }. The first signaling is used to instruct the user equipment to establish a separate data radio bearer in the second cell group. The second wireless signal includes configuration information corresponding to at least one of { the first cell group, the second cell group, the third cell group }. The configuration information comprises at least one of { system information, random access channel configuration information, physical cell identification, frequency band information, wireless resource configuration information and auxiliary cell group invariance indication information }. The first message is sent in the secondary cell group. The secondary cell group invariance indication information is used to indicate that a secondary cell group configuration is to be kept unchanged. The first bearer and the second bearer are for the same user equipment. The second signaling is used to request a handover from the second base station. And the second signaling comprises second cell group invariance indication information. The third signaling is used for acknowledgement of the second signaling.
As a sub-embodiment, the channel quality of the first link is better than the channel quality of the third link, and is used to determine that the channel quality of the second link is greater than a first threshold.
As a sub-embodiment, the channel quality of the first link is worse than a second threshold, the channel quality of a third link is better than a third threshold, and is used to determine that the channel quality of the second link is greater than the first threshold.
As a sub-embodiment, the channel quality of the first link plus the first offset is better than the channel quality of the third link and is used to determine that the channel quality of the second link is greater than the first threshold. As a sub-embodiment, the first threshold is an integer and the unit is decibels.
As a sub-embodiment, the second threshold is an integer and the unit is decibels.
As a sub-embodiment, the third threshold is an integer and the unit is decibels.
As a sub-embodiment, the first offset is an integer in decibels.
As a sub-embodiment, the first cell group carries a first bearer, and the second cell group carries a second bearer.
As a sub-embodiment, the first bearer includes configuration information of { first cell group, second cell group }.
As a sub-embodiment, the second bearer comprises configuration information of a second cell group.
As a sub-embodiment, the first Cell Group is a Master Cell Group (MCG).
As a sub-embodiment, the master cell group carries at least configuration information of one of { master cell group, secondary cell group } of the doubly linked user.
As a sub-embodiment, the second cell group is a Secondary Cell Group (SCG).
As a sub-embodiment, the secondary cell group carries configuration information of a secondary cell group of a dual-linked user.
As a sub-embodiment, the first group of cells comprises positive integer cells, which all employ LTE access technology.
As a sub-embodiment, the second group of cells comprises positive integer number of cells, all employing NR access technology.
As a sub-embodiment, the third group of cells comprises positive integer number cells, each employing NR access technology.
As a sub-embodiment, the third cell is a neighboring cell of the second cell, and the third cell is detected by the user equipment.
As a sub-embodiment, the third cell being detected by the ue means that the ue and the third cell are synchronized, and the RS sent by the third cell determines the channel quality of the third link.
As a sub-embodiment, the channel quality is used for RRM (Radio Resource Management) measurement.
As a sub-embodiment, the channel quality is obtained by Layer 3 measurement.
As a sub-embodiment, the first report includes a first index, the first index corresponding to the first report first.
As a sub-embodiment, the first index refers to the Event ID (Event identification) in TS 36.331.
As a sub-embodiment, the first index corresponds to Event X.
As a sub-embodiment, the first report includes at least one of { channel quality of the first link, channel quality of the second link, channel quality of the third link }.
As a sub-embodiment, the first threshold is configured through higher layer signaling.
As a sub-embodiment, the higher layer signaling is sent to the ue through the first cell group.
As a sub-embodiment, the higher layer signaling is sent to the ue through the second cell group.
As a sub-embodiment, the first report is sent in a first primary cell in the first group of cells.
As a sub-embodiment, the first primary cell is the first cell.
As a sub-embodiment, the first primary cell is a primary cell (Pcell).
As a sub-embodiment, the first report is sent in a second primary cell in the second group of cells.
As a sub-embodiment, the second primary cell is the second cell.
As a sub-embodiment, the second primary cell is a Secondary cell group Primary cell (Pscell)
As a sub-embodiment, the base station N2 is a base station apparatus to which the master cell group belongs.
As a sub-embodiment, the base station N2 is an LTE base station after Rel-15 release.
As a sub-embodiment, the base station N2 is an NR base station.
As a sub-embodiment, the first type bearer is a Signaling Radio Bearer (SRB).
As a sub-embodiment, the first type bearer includes Signaling radio bearer 0(SRB0, Signaling radio bearer 0).
As a sub-embodiment, the first type bearer includes Signaling radio bearer 1(SRB1, Signaling radio bearer 1).
As a sub-embodiment, the first type bearer includes Signaling radio bearer 2(SRB2, Signaling radio bearer 2).
As a sub-embodiment, the first bearer is a signaling radio bearer of a Master Cell Group (MCG) in dual link.
As a sub-embodiment, the first bearer comprises signaling radio bearer 0 of a master cell group in dual-link.
As a sub-embodiment, the first bearer comprises a signalling radio bearer 1 of a master cell group in dual link.
As a sub-embodiment, the first bearer comprises a signalling radio bearer 2 of a master cell group in dual link.
As a sub-embodiment, the first bearer includes configuration information of users in two cell groups in dual link.
As a sub-embodiment, the configuration information at least includes one of { system information, random access channel configuration information, physical cell identifier, frequency band information, radio resource configuration information, PDCP layer entity configuration information, RLC layer entity configuration information, and MAC layer entity configuration information }.
As a sub-embodiment, the second bearer is a signaling radio bearer of a Secondary Cell Group (SCG) in dual link.
As a sub-embodiment, the second bearer comprises signaling radio bearer 0 of the secondary cell group in dual-link.
As a sub-embodiment, the second bearer comprises a signalling radio bearer 1 for a secondary cell group in dual-link.
As a sub-embodiment, the second bearer comprises a signalling radio bearer 2 for a secondary cell group in dual-link.
As a sub-embodiment, the second bearer includes configuration information of the dual-link user in the secondary cell group.
As a sub-embodiment, the configuration information at least includes one of { system information, random access channel configuration information, physical cell identifier, frequency band information, radio resource configuration information, PDCP layer entity configuration information, RLC layer entity configuration information, and MAC layer entity configuration information }.
As a sub-embodiment, the second type Bearer is a Data Radio Bearer (DRB).
As a sub-embodiment, the second type of bearer comprises a data radio bearer of a master cell group in dual link.
As a sub-embodiment, the second type of bearer comprises a data radio bearer of a secondary cell group in dual link.
As a sub-embodiment, the second type of Bearer comprises a Split Data Radio Bearer (Split drb) in dual link.
As a sub-embodiment, the user establishes the first bearer in the second cell group.
As a sub-embodiment, the first bearer is carried in RRC signaling.
As a sub-embodiment, the first bearer is carried in a higher layer signaling.
As a sub-embodiment, the user establishes the second bearer in the first cell group.
As a sub-embodiment, the second bearer is carried in RRC signaling.
As a sub-embodiment, the second bearer is carried in a higher layer signaling.
As a sub-embodiment, the user releases the first bearer in the first cell group.
As a sub-embodiment, the first bearer is carried in RRC signaling.
As a sub-embodiment, the first bearer is carried in a higher layer signaling.
As a sub-embodiment, the set of higher level entities comprises at least one of { entities of a first type, entities of a second type }.
As a sub-embodiment, the first type of entity is a PDCP entity.
As a sub-embodiment, the first type entity is used to segment the IP data of the upper layer of the user equipment, perform header compression and encryption on the IP data packet, and then deliver the IP data packet to the second type entity.
As a sub-embodiment, the first type entity is used to encrypt and integrity protect the control plane data of the user equipment, and then deliver it to the second type entity.
As a sub-embodiment, the second type of entity is an RLC entity.
As a sub-embodiment, the second type of entity is used to provide radio bearers to upper layers.
As a sub-embodiment, the second type of entity is used to segment the data submitted by the first type of entity.
As a sub-embodiment, the second type of entity has an automatic repeat request (ARQ) function.
As a sub-embodiment, the second type entity has three modes, an acknowledged Mode (acknowledged Mode), an Unacknowledged Mode (Unacknowledged Mode), and a Transparent Mode.
As a sub-embodiment, the first type of logical channel is a control Dedicated (DCCH) logical channel.
As a sub-embodiment, the logical channels of the first type are control common (CCCH) logical channels.
As a sub-embodiment, the logical channels of the first type are used for transmitting dedicated control channels for control.
As a sub-embodiment, the set of higher level entities comprises at least one of { entities of a first type, entities of a second type }.
As a sub-embodiment, the first type of entity is a PDCP entity.
As a sub-embodiment, the first type entity is used to segment the IP data of the upper layer of the user equipment, perform header compression and encryption on the IP data packet, and then deliver the IP data packet to the second type entity.
As a sub-embodiment, the first type entity is used to encrypt and integrity protect the control plane data of the user equipment, and then deliver it to the second type entity.
As a sub-embodiment, the second type of entity is an RLC entity.
As a sub-embodiment, the second type of entity is used to provide radio bearers to upper layers.
As a sub-embodiment, the second type of entity is used to segment the data submitted by the first type of entity.
As a sub-embodiment, the second type of entity has an automatic repeat request (ARQ) function.
As a sub-embodiment, the second type entity has three modes, an acknowledged Mode (acknowledged Mode), an Unacknowledged Mode (Unacknowledged Mode), and a Transparent Mode.
As a sub-embodiment, the first type of logical channel is a control Dedicated (DCCH) logical channel.
As a sub-embodiment, the logical channels of the first type are control common (CCCH) logical channels.
As a sub-embodiment, the logical channels of the first type are used for transmitting dedicated control channels for control.
As a sub-embodiment, the logical channels of the first type are used to transmit a common control channel for control.
As a sub-embodiment, the maintaining of the higher layer entity set and the first type logical channel corresponding to the second cell group is a corresponding configuration before the user equipment maintains the higher layer entity set and the first type logical channel.
As a sub-embodiment, the configuration includes configuration of PDCP entity, configuration of RLC entity, and configuration of MAC layer, which is described in detail in TS36.3315.3.10.
As a sub-embodiment, the first type of logical channel is a data Dedicated (DTCH) logical channel.
As a sub-embodiment, the first type of logical channel is a Common Control Channel (CCCH) logical channel. As a sub-embodiment, the logical channels of the first type are used for traffic channels carrying user speech or data of the user equipment.
As a sub-embodiment, the second cell group is a Secondary Cell Group (SCG).
As a sub-embodiment, the second group of cells comprises positive integer number of cells, all employing NR access technology.
As a sub-embodiment, the first type of entity is a PDCP entity.
As a sub-embodiment, the second type of entity is an RLC entity.
As a sub-embodiment, the first type entity for establishing correspondence to the second cell group includes at least one of { configure discard clock, configure RLC mode, PDCP SN size, header compression algorithm, status report feedback }.
As a sub-embodiment, the establishing is to establish a PDCP entity, specifically see the IEPDCP-Config in TS36.3316.3.2.
As a sub-embodiment, the reconfiguration is to reconfigure the RLC entity, see specifically the ielrlc-Config in TS36.3316.3.2.
As a sub-embodiment, the reconfiguration is at least one of the data-dedicated { data-dedicated logical channel, control-common logical channel }, see in particular IE MAC-MainConfig in TS36.3316.3.2.
As a sub-embodiment, the second type of logical channel is a data Dedicated (DTCH) logical channel.
As a sub-embodiment, the logical channels of the second type are used for traffic channels carrying user speech or data of the user equipment.
As a sub-embodiment, the separate Data radio bearer is a split DRB (Data radio bearer).
As a sub-embodiment, the Radio Bearer of the second cell group is SCG DRB (Secondary cell group Data Radio Bearer).
As a sub-embodiment, the Radio Bearer of the second cell group is MCG DRB (MasterCell group data Radio Bearer).
As a sub-embodiment, the establishing includes establishing a PDCP entity, specifically see the IEPDCP-Config at TS36.3316.3.2.
As a sub-embodiment, the first signaling is transmitted in RRC signaling.
As a sub-embodiment, the second wireless signal comprises configuration information corresponding to at least the third cell group of { the first cell group, the second cell group, the third cell group }.
As a sub-embodiment, the configuration information is specific to a given cell, the given cell belonging to one of { the first cell group, the second cell group, the third cell group }.
As a sub-embodiment, the system information is systemlnformationblocktype 2 in TS 36.331.
As a sub-embodiment, the system information is systemlnformationblocktype 3 in TS 36.331.
As a sub-embodiment, the system information is systemlnformationblocktype 4 in TS 36.331.
As a sub-embodiment, the system information is systemlnformationblocktype 5 in TS 36.331.
As a sub-embodiment, the random access information is ierrach-ConfigCommon in TS 36.331.
As a sub-embodiment, the random access information is ierrach-ConfigDedicated in TS 36.331.
As a sub-embodiment, the physical cell identity is a PCID.
As a sub-embodiment, the frequency band information is iesystemlnformationblocktype 4 in TS 36.331.
As a sub-embodiment, the frequency band information is iesystemlnformationblocktype 5 in TS 36.331.
As a sub-embodiment, the radio resource configuration information is ieradioresourceconfigdetermined in TS 36.331.
As a sub-embodiment, the radio resource configuration information is used to establish a radio bearer, modify MAC layer configuration information, modify SPS configuration information and modify dedicated physical channels and physical signal configurations.
As a sub-embodiment, the radio resource configuration information is used to release a radio bearer.
As a sub-embodiment, the radio resource configuration information is used to modify a radio bearer.
As a sub-embodiment, the secondary cell group invariance indication information is used to indicate that the configuration information of the second cell group is kept unchanged.
As a sub-embodiment, the user is a user device operating on dual links.
As a sub-embodiment, the user accesses the base station corresponding to the primary cell group and the base station corresponding to the secondary cell group at the same time.
As a sub-embodiment, the user maintains both the first bearer and the second bearer.
As a sub-embodiment, the second base station is a neighboring base station of the first base station.
As a sub-embodiment, the second base station includes the third group of cells.
As a sub-embodiment, the second signaling is transmitted through a backhaul Link.
As a sub-embodiment, the receiver of the second signaling and the receiver of the first signaling are non-co-located.
As a sub-embodiment, the receiver of the second signaling and the receiver of the first signaling are non-co-located, which means: the receiver of the second signaling and the receiver of the first signaling are two different communication devices.
As a sub-embodiment, the receiver of the second signaling and the receiver of the first signaling are non-co-located, which means: there is no wired connection between the recipient of the second signaling and the recipient of the first signaling.
As a sub-embodiment, the receiver of the second signaling and the receiver of the first signaling are non-co-located, which means: the receiver of the second signaling and the receiver of the first signaling are located at different locations.
As a sub-embodiment, the second cell group invariance indication information is used to indicate that the secondary cell group configuration is to be kept unchanged.
As a sub-embodiment, the third signaling is transmitted through a Backhaul Link.
Example 2
Embodiment 2 illustrates another flow chart of signal transmission, as shown in fig. 2. Therein, the steps shown in dashed boxes B1, B2 and B3 are optional.
For theUE U4The first wireless is transmitted in step S40A signal, a third wireless signal is transmitted at step S41, the first type bearer and the second type bearer are maintained at step S42, the first type bearer is established at step S43, the first type bearer is released at step S44, wherein the first bearer is released at step S441, the second bearer is maintained at step S442, the second type bearer is established at step S45, the first signaling is received at step S46, the fourth signaling is received at step S47, the second wireless signal is received at step S48, and the fourth wireless signal is received at step S49.
For theBase station N5The method includes receiving a first wireless signal at step S50, maintaining at least one of { a first bearer, a second bearer } at step S51, establishing the second bearer at step S52, releasing the first bearer at step S53, establishing the second bearer at step S54, transmitting a first signaling at step S55, and transmitting a second wireless signal at step S56.
For theBase station N6Receiving the third wireless signal at step S60, maintaining at least one of { first type bearer, second type bearer } at step S61, establishing the first bearer at step S62, maintaining the second bearer at step S63, establishing the second type bearer at step S64, transmitting the fourth signaling at step S65, and transmitting the fourth wireless signal at step S66.
As a sub-embodiment, the content of the third wireless signal is the same as the content of the first wireless signal.
As a sub-embodiment, the base station N5 and the base station N6 are dual-link base stations for user U4.
As a sub-embodiment, the base station N5 is the base station to which the master cell group belongs.
As a sub-embodiment, the base station N6 is the base station to which the secondary cell group belongs.
As a sub-embodiment, the base station N5 is an LTE base station after Rel-15 release.
As a sub-embodiment, the base station N5 is an NR base station.
As a sub-embodiment, the base station N6 is an LTE base station after Rel-15 release.
As a sub-embodiment, the base station N6 is an NR base station.
As a sub embodiment, the content of the fourth signaling is the same as the content of the first signaling.
As a sub-embodiment, the content of the fourth wireless signal is the same as the content of the second wireless signal.
Example 3
Embodiment 3 illustrates another flow chart of signal transmission, as shown in fig. 3. Therein, the steps shown in dashed boxes B4, B5 and B6 are optional.
For theUE U7A first radio signal is transmitted at step S70, a third radio signal is transmitted at step S71, a first bearer type and a second bearer type are maintained at step S72, the first bearer type is released at step S73, wherein the first bearer is released at step S731, the second bearer is maintained at step S732, the first signaling is received at step S74, the fourth signaling is received at step S75, the second radio signal is received at step S76, and the fourth radio signal is received at step S77.
For theBase station N8The first wireless signal is received at step S80, at least one of { first type bearer, second type bearer } is maintained at step S81, the first bearer is released at step S82, the first signaling is transmitted at step S83, and the second wireless signal is transmitted at step S84.
For theBase station N9The third wireless signal is received at step S90, at least one of { bearer of the first type, bearer of the second type } is maintained at step S91, the second bearer is maintained at step S92, the fourth signaling is transmitted at step S93, and the fourth wireless signal is transmitted at step S94.
As a sub-embodiment, the content of the third wireless signal is the same as the content of the first wireless signal.
As a sub-embodiment, the base station N8 and the base station N9 are dual-link base stations for user U7.
As a sub-embodiment, the base station N8 is the base station to which the master cell group belongs.
As a sub-embodiment, the base station N9 is the base station to which the secondary cell group belongs.
As a sub-embodiment, the base station N8 is an LTE base station after Rel-15 release.
As a sub-embodiment, the base station N8 is an NR base station.
As a sub-embodiment, the base station N9 is an LTE base station after Rel-15 release.
As a sub-embodiment, the base station N9 is an NR base station.
As a sub embodiment, the content of the fourth signaling is the same as the content of the first signaling.
As a sub-embodiment, the content of the fourth wireless signal is the same as the content of the second wireless signal.
Example 4
Embodiment 4 illustrates a block diagram of a processing device in a user equipment, as shown in fig. 4. In fig. 4, the ue processing apparatus 100 mainly includes a first processing module 101 and a fourth processing module 102.
A first processing module 101, configured to send a first wireless signal;
a fourth processing module 102, configured to maintain the first class bearer and the second class bearer;
in embodiment 4, the first wireless signal comprises a first report. The first report is related to a channel quality of the first link, a channel quality of the second link, and a channel quality of the third link. The first report is used to determine the user equipment handover. The first link is a wireless link from a base station corresponding to a first cell to the user equipment, the second link is a wireless link from a base station corresponding to a second cell to the user equipment, and the third link is a wireless link from a base station corresponding to a third cell to the user equipment. The channel quality is at least one of { RSRP, RSRQ, RSSI }. The first cell belongs to a first cell group, the second cell belongs to a second cell group, and the third cell belongs to a third cell group. The first cell and the second cell are both camping cells of the user equipment. The first and second cell groups belong to different RATs, the second and third cell groups belong to the same RAT.
As a sub embodiment, optionally, the first processing module 101 is further configured to send a third wireless signal. The content of the third wireless signal is the same as the content of the first wireless signal.
As a sub embodiment, the first processing module 101 is further configured to receive a first signaling. In embodiment 4, the first signaling is used to instruct the user equipment to establish a separate data radio bearer in the second cell group.
As a sub embodiment, optionally, the first processing module 101 is further configured to receive a fourth signaling. The content of the fourth signaling is the same as the content of the first signaling.
As a sub-embodiment, the first processing module 101 is further configured to receive a second wireless signal.
In embodiment 4, the second radio signal includes configuration information corresponding to at least one of { the first cell group, the second cell group, the third cell group }. The configuration information includes at least one of { system information, random access channel configuration information, physical cell identification, frequency band information, radio resource configuration information, and secondary cell group invariance indication information }. The first message is sent in the secondary cell group. The secondary cell group invariance indication information is used to indicate that a secondary cell group configuration is to be kept unchanged.
As a sub-embodiment, the first processing module 101 is further configured to receive a fourth wireless signal. The content of the fourth wireless signal is the same as the content of the second wireless signal.
In embodiment 4, the first bearer is used for carrying control signaling, and the second bearer is used for carrying data information. The first type bearer includes at least the former of { first bearer, second bearer }. The first bearer is used to determine a configuration of the first cell group, the second cell group. The second bearer is used to determine a configuration of the second cell group.
As a sub-embodiment, the fourth processing module 102 is further configured to establish the first class bearer.
In embodiment 4, the first bearer is the first bearer, and the first bearer is a bearer of the second cell group; or the first bearer is the second bearer, and the second bearer is a bearer of the first cell group.
As a sub-embodiment, the fourth processing module 102 is further configured to release the first class bearer.
In embodiment 4, the first type bearer is the first bearer, and the first bearer is a bearer of the first cell group.
As a sub-embodiment, the fourth processing module 102 is further configured to release the higher layer entity set corresponding to the first bearer and release the first class of logical channels.
As a sub-embodiment, the fourth processing module 102 is further configured to maintain the higher layer entity set corresponding to the second bearer and maintain the first class of logical channels.
In embodiment 4, the maintaining means that the ue does not release (deallocated) the higher layer entity set and the first type logical channel corresponding to the second cell group.
As a sub-embodiment, the fourth processing module 102 is further configured to establish, for separate data radio bearers, a first type entity corresponding to the second cell group; reconfiguring at least one of { second-type entities, the first-type logical channels, second-type logical channels } corresponding to the second cell group for a separate data radio bearer.
In embodiment 4, the first type entity for establishing the second cell group includes at least one of { configure discard clock, configure RLC mode, PDCP SN size, header compression algorithm, status report feedback }.
Example 5
Embodiment 5 illustrates a block diagram of a processing device in a first base station, as shown in fig. 5.
In fig. 5, the first base station processing apparatus 200 is mainly composed of a second processing module 201, a fifth processing module 202 and a sixth processing module 203.
A second processing module 201, which receives the first wireless signal;
a fifth processing module 202, configured to send a second signaling;
a sixth processing module 203, maintaining at least one of { first type bearer, second type bearer };
in embodiment 5, the first wireless signal comprises a first report. The first report is related to a channel quality of the first link, a channel quality of the second link, and a channel quality of the third link. The first report is used to determine the user equipment handover. The first link is a wireless link from a base station corresponding to a first cell to the user equipment, the second link is a wireless link from a base station corresponding to a second cell to the user equipment, and the third link is a wireless link from a base station corresponding to a third cell to the user equipment. The channel quality is at least one of { RSRP, RSRQ, RSSI }. The first cell belongs to a first cell group, the second cell belongs to a second cell group, and the third cell belongs to a third cell group. The first cell and the second cell are both camping cells of the user equipment. The first and second cell groups belong to different RATs, the second and third cell groups belong to the same RAT.
As a sub embodiment, optionally, the second processing module 201 is further configured to receive a third wireless signal. The content of the third wireless signal is the same as the content of the first wireless signal.
As a sub embodiment, the second processing module 201 is further configured to send a first signaling.
In embodiment 5, the first signaling is used to instruct the user equipment to establish a separate data radio bearer in the second cell group.
As a sub embodiment, optionally, the second processing module 201 is further configured to send a fourth signaling. The content of the fourth signaling is the same as the content of the first signaling.
As a sub-embodiment, the second processing module 201 is further configured to transmit a second wireless signal.
In embodiment 5, the second radio signal includes configuration information corresponding to at least one of { the first cell group, the second cell group, the third cell group }. The configuration information comprises at least one of { system information, random access channel configuration information, physical cell identification, frequency band information, wireless resource configuration information and auxiliary cell group invariance indication information }. The first message is sent in the secondary cell group. The secondary cell group invariance indication information is used to indicate that a secondary cell group configuration is to be kept unchanged.
As a sub embodiment, optionally, the second processing module 201 is further configured to send a fourth wireless signal. The content of the fourth wireless signal is the same as the content of the second wireless signal.
In embodiment 5, the second signaling is used to request a handover from the second base station. And the second signaling comprises second cell group invariance indication information.
As a sub embodiment, the fifth processing module 202 is further configured to receive a third signaling.
In embodiment 5, the third signaling is used for acknowledgement of the second signaling.
In embodiment 5, the first bearer is used for carrying control signaling, and the second bearer is used for carrying data information. The first type bearer comprises at least one of { first bearer, second bearer }. The first bearer is used to determine a configuration of the first cell group, the second cell group. The second bearer is used to determine a configuration of the second cell group.
As a sub-embodiment, the sixth processing module 203 is configured to establish the first type bearer.
In embodiment 5, the first bearer is the first bearer, and the first bearer is a bearer of the second cell group; or the first bearer is the second bearer, and the second bearer is a bearer of the first cell group.
As a sub-embodiment, the sixth processing module 203 is configured to release the first type bearer.
In embodiment 5, the first type bearer is the first bearer, and the first bearer is a bearer of the first cell group.
As a sub-embodiment, the sixth processing module 203 is configured to release the higher layer entity set corresponding to the first bearer and release the first type of logical channel.
As a sub-embodiment, the sixth processing module 203 is configured to maintain the higher layer entity set corresponding to the second bearer and maintain the first type of logical channel.
In embodiment 5, the maintaining means that the ue does not release (deallocated) the higher layer entity set and the first type logical channel corresponding to the second cell group.
As a sub-embodiment, the sixth processing module 203 is configured to establish, for separate data radio bearers, a first type entity corresponding to the second cell group; reconfiguring at least one of { entities of a second type, logical channels of the second type } to which the second cell group corresponds for a separate data radio bearer.
In embodiment 5, the first type entity for establishing the second cell group includes at least one of { configure discard clock, configure RLC mode, PDCP SN size, header compression algorithm, status report feedback }.
Example 6
Embodiment 6 is a block diagram illustrating a processing apparatus in a second base station, as shown in fig. 6.
In embodiment 6, the second base station processing apparatus 300 is mainly composed of the third processing module 301.
A third processing module 301, receiving a second signaling;
in embodiment 6, the second signaling is used to request a handover to the second base station apparatus. And the second signaling comprises second cell group invariance indication information.
As a sub embodiment, the third processing module 301 is further configured to send a third signaling.
As a sub-embodiment, the third signaling is used for acknowledgement of the second signaling.
Example 7
Embodiment 7 illustrates a schematic diagram of radio bearers on the master cell group M1, the secondary cell group F2 and the UE U10 sides of the base station side in dual link, as shown in fig. 7.
For base stationMaster cell group M1, and auxiliary cell group F2On the side, the master cell group bearer MRB1 is processed in order by the first layer M110, the second layer M120, the third layer M130, and the fourth layer M140 of the master cell group M1. The split bearer SRB2 is processed by the first layer M111 of the master cell group M1 and then by the second layer M121, the third layer M130 and the fourth layer M140 of the master cell group M1 and the second layer F221, the third layer F230 and the fourth layer F240 of the secondary cell group F2, respectively. The secondary cell group bearer SRB3 is processed by the first layer F210, the second layer F220, the third layer F230, and the fourth layer F240 of the secondary cell group F2 in this order.
For theUE U10On the side, the master cell group bearer MRB1 is processed in turn by the fourth layer U1040, the third layer U1030, the second layer U1020, and the first layer U1010. The split bearer SRBs 2 are processed by the fourth layer U1040, the third layer U1030, the second layer U1021, and the fourth layer U1041, the third layer U1031, the second layer U1023, respectively, and then merged and processed at the first layer U1011. The secondary cell group bearer SRB3 is processed by the fourth layer U1041, the third layer U1031, the second layer U1022, and the first layer U1012 in this order.
As a sub-embodiment, the base station to which the master cell group belongs is an LTE base station.
As a sub-embodiment, the base station to which the master cell group belongs is an NR base station.
As a sub-embodiment, the base station to which the secondary cell group belongs is an LTE base station.
As a sub-embodiment, the base station to which the master cell group belongs is an NR base station.
As a sub-embodiment, the primary cell group first layer is a PDCP layer, defined in detail in 3GPP TS 36.323 or 3GPP TS 38.323.
As a sub-embodiment, the master cell group second layer is the RLC layer, defined in detail in 3GPP TS 36.322 or 3GPP TS 38.322.
As a sub-embodiment, the third layer of the master cell group is the MAC layer, defined in detail in 3GPP TS 36.321 or 3GPP TS 38.321.
As a sub-embodiment, the master cell group first layer is a physical layer.
As a sub-embodiment, the secondary cell group first layer is a PDCP layer, defined in detail in 3GPP TS 36.323 or 3GPP TS 38.323.
As a sub-embodiment, the first layer of the secondary cell group is the RLC layer, defined in detail in 3GPP TS 36.322 or 3GPP TS 38.322.
As a sub-embodiment, the third layer of the secondary cell group is defined in detail by the MAC layer, see 3GPP TS 36.321 or 3GPP TS 38.321.
As a sub-embodiment, the secondary cell group first layer is a physical layer.
As a sub-embodiment, the bearer is a data radio bearer.
As a sub-embodiment, the bearer is a signaling radio bearer.
As a sub-embodiment, the bearer is a first type bearer.
As a sub-embodiment, the bearer is a bearer of the second type.
As a sub-embodiment, the user equipment is a dual link user equipment.
As a sub-embodiment, the user equipment supports LTE-NR coupled communication, i.e. supports dual link communication between LTE and NR.
As a sub-embodiment, the ue is a ue after Rel-15 version support.
As a sub-embodiment, the user equipment is an NR user equipment.
Example 8
Embodiment 8 illustrates a schematic diagram of control information transmission in a dual link, as shown in fig. 8.
For base stationMaster cell group M3, and auxiliary cell group F4On the side, the secondary cell group F4 transfers the secondary cell control information C300 to the master cell group M3 through the first interface. The master cell group M3 transmits first control information C100 to the user U11. Secondary cell group F4 sending second control information C200 sendingHousehold U11.
For theUE U11On the side, the first control information C100 is received on the master cell group M3, and the second control information C200 is received on the secondary cell group F4.
As a sub-embodiment, the first control information comprises the secondary cell control information.
As a sub-embodiment, the secondary cell control information is nested in the first control information, and the secondary cell control information is invisible to the base station to which the primary cell group M belongs.
As a sub-embodiment, the first control information is a first type bearer.
As a sub-embodiment, the first control information is a first bearer.
As a sub-embodiment, the second control information is a second bearer.
As a sub-embodiment, the first interface is an X2 interface.
As a sub-embodiment, the first interface connects at least two base stations.
As a sub-embodiment, the first interface connects an LTE base station and an NR base station of Rel-15 release and beyond.
As a sub-embodiment, the first interface connects at least two NR base stations.
As a sub-embodiment, the first interface connects at least two Rel-15 releases and beyond LTE base stations.
It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. The UE and the terminal in this application include but are not limited to unmanned aerial vehicle, communication module on the unmanned aerial vehicle, remote control plane, aircraft, small aircraft, cell-phone, tablet computer, notebook, vehicle-mounted communication equipment, wireless sensor, network card, internet of things terminal, RFID terminal, NB-IOT terminal, MTC (Machine type communication ) terminal, eMTC (enhanced MTC) terminal, data card, network card, vehicle-mounted communication equipment, low-cost cell-phone, equipment such as low-cost tablet computer. The base station in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, and other wireless communication devices.
The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (32)

1. A method in a user equipment used for wireless communication, comprising:
-step a. transmitting a first wireless signal;
-step c. releasing the first type bearer; releasing a high-level entity set corresponding to the first bearer and a first-class logic channel; keeping a high-level entity set corresponding to the second bearer and a first-class logic channel; wherein the first wireless signal comprises a first report; the first report is related to the channel quality of the first link, the channel quality of the second link and the channel quality of the third link; the first report is used to determine the user equipment handover; the first link is a wireless link from a base station corresponding to a first cell to the user equipment, the second link is a wireless link from a base station corresponding to a second cell to the user equipment, and the third link is a wireless link from a base station corresponding to a third cell to the user equipment; the channel quality is at least one of RSRP, RSRQ, and RSSI; the first cell belongs to a first cell group, the second cell belongs to a second cell group, and the third cell belongs to a third cell group; the first cell and the second cell are both camping cells of the user equipment; the first and second cell groups belong to different RATs, the second and third cell groups belong to the same RAT; the first type bearer comprises the first bearer, the first bearer being used to determine a configuration of the first cell group and the second cell group; the second bearer is used to determine a configuration of the second cell group; the maintaining means not releasing the higher layer entity set and the first type logical channel corresponding to the second cell group.
2. The method of claim 1, comprising:
-a step a1. maintaining the first type bearer and the second type bearer;
wherein the first type bearer is used for carrying control signaling, and the second type bearer is used for carrying data information; the first type bearer comprises at least the former of a first bearer and a second bearer; the first bearer is used to determine a configuration of the first cell group and the second cell group; the second bearer is used to determine a configuration of the second cell group.
3. The method of claim 1, comprising:
-step b. establishing the first type bearer;
wherein the first type bearer is the first bearer, and the first bearer is a bearer of the second cell group; or the first bearer is the second bearer, and the second bearer is a bearer of the first cell group.
4. The method of claim 1, comprising:
-step d1. establishing a first type entity corresponding to the second cell group for a separated data radio bearer;
-step D2. reconfiguring at least one of a second type entity, the first type logical channel and a second type logical channel, to which the second cell group corresponds, for a separate data radio bearer;
wherein the establishing the first type entity corresponding to the second cell group comprises at least one of configuring a discard clock, configuring an RLC mode, a PDCP SN size, a header compression algorithm, and status report feedback.
5. The method of claim 1, comprising:
-step A0. receiving the first signaling;
wherein the first signaling is used to instruct the user equipment to establish a separate data radio bearer in the second cell group.
6. The method of claim 1, comprising:
-a step a2. receiving a second radio signal;
wherein the second wireless signal comprises configuration information corresponding to at least one of the first cell group, the second cell group, and the third cell group; the configuration information comprises at least one of system information, random access channel configuration information, physical cell identification, frequency band information, wireless resource configuration information and auxiliary cell group invariance indication information; the first message is sent in the secondary cell group; the secondary cell group invariance indication information is used to indicate that a secondary cell group configuration is to be kept unchanged.
7. The method according to any of claims 1-6, wherein the first bearer and the second bearer are for the same user equipment.
8. A method in a first base station used for wireless communication, comprising:
-step a. receiving a first wireless signal;
-step c. releasing the first type bearer; releasing a high-level entity set corresponding to the first bearer and a first-class logic channel; keeping a high-level entity set corresponding to the second bearer and a first-class logic channel; wherein the first wireless signal comprises a first report; the first report is related to the channel quality of the first link, the channel quality of the second link and the channel quality of the third link; the first report is used to determine a user equipment handover; the first link is a wireless link from a base station corresponding to a first cell to the user equipment, the second link is a wireless link from a base station corresponding to a second cell to the user equipment, and the third link is a wireless link from a base station corresponding to a third cell to the user equipment; the channel quality is at least one of RSRP, RSRQ, and RSSI; the first cell belongs to a first cell group, the second cell belongs to a second cell group, and the third cell belongs to a third cell group; the first cell and the second cell are both camping cells of the user equipment; the first and second cell groups belong to different RATs, the second and third cell groups belong to the same RAT; the first type bearer comprises the first bearer, the first bearer being used to determine a configuration of the first cell group and the second cell group; the second bearer is used to determine a configuration of the second cell group; the maintaining means not releasing the higher layer entity set and the first type logical channel corresponding to the second cell group.
9. The method of claim 8, comprising:
a step a1. maintaining at least one of the first type of bearer and the second type of bearer;
wherein the first type bearer is used for carrying control signaling, and the second type bearer is used for carrying data information; the first type bearer comprises at least one of a first bearer and a second bearer; the first bearer is used to determine a configuration of the first cell group and the second cell group; the second bearer is used to determine a configuration of the second cell group.
10. The method of claim 8, comprising:
-step b. establishing the first type bearer;
wherein the first type bearer is the first bearer, and the first bearer is a bearer of the second cell group; or the first bearer is the second bearer, and the second bearer is a bearer of the first cell group.
11. The method of claim 8, comprising:
-step d1. establishing a first type entity corresponding to the second cell group for a separated data radio bearer;
-step D2. reconfiguring a second type entity, at least one of said second type logical channels, to which said second cell group corresponds for a separate data radio bearer;
wherein the establishing the first type entity corresponding to the second cell group comprises at least one of configuring a discard clock, configuring an RLC mode, a PDCP SN size, a header compression algorithm, and status report feedback.
12. The method of claim 8, comprising:
step A0. sending a first signaling;
wherein the first signaling is used to instruct a sender of the first wireless signal to establish a separate data radio bearer in the second cell group.
13. The method of claim 8, comprising:
-a step a2. transmitting a second radio signal;
wherein the second wireless signal comprises configuration information corresponding to at least one of the first cell group, the second cell group, and the third cell group; the configuration information comprises at least one of system information, random access channel configuration information, physical cell identification, frequency band information, wireless resource configuration information and auxiliary cell group invariance indication information; the first message is sent in the secondary cell group; the secondary cell group invariance indication information is used to indicate that a secondary cell group configuration is to be kept unchanged.
14. The method of claim 8, comprising:
-step e. sending a second signaling;
wherein the second signaling is used to request a handover from a second base station; and the second signaling comprises second cell group invariance indication information.
15. The method of claim 14, comprising:
-a step e1. receiving a third signaling;
wherein the third signaling is used for acknowledgement of the second signaling.
16. The method according to any of claims 8 to 15, wherein the first bearer and the second bearer are for the same user equipment.
17. A user equipment configured for wireless communication, comprising:
-a first processing module to transmit a first wireless signal;
-a fourth processing module for releasing the first type bearer; releasing a high-level entity set corresponding to the first bearer and a first-class logic channel; keeping a high-level entity set corresponding to the second bearer and a first-class logic channel;
wherein the first wireless signal comprises a first report; the first report is related to the channel quality of the first link, the channel quality of the second link and the channel quality of the third link; the first report is used to determine the user equipment handover; the first link is a wireless link from a base station corresponding to a first cell to the user equipment, the second link is a wireless link from a base station corresponding to a second cell to the user equipment, and the third link is a wireless link from a base station corresponding to a third cell to the user equipment; the channel quality is at least one of RSRP, RSRQ, and RSSI; the first cell belongs to a first cell group, the second cell belongs to a second cell group, and the third cell belongs to a third cell group; the first cell and the second cell are both camping cells of the user equipment; the first and second cell groups belong to different RATs, the second and third cell groups belong to the same RAT; the first type bearer comprises the first bearer, the first bearer being used to determine a configuration of the first cell group and the second cell group; the second bearer is used to determine a configuration of the second cell group; the maintaining means not releasing the higher layer entity set and the first type logical channel corresponding to the second cell group.
18. The UE of claim 17, wherein the fourth processing module maintains a first bearer type and a second bearer type;
wherein the first type bearer is used for carrying control signaling, and the second type bearer is used for carrying data information; the first type bearer comprises at least the former of a first bearer and a second bearer; the first bearer is used to determine a configuration of the first cell group and the second cell group; the second bearer is used to determine a configuration of the second cell group.
19. The UE of claim 17, wherein the fourth processing module establishes the first type bearer; wherein the first type bearer is the first bearer, and the first bearer is a bearer of the second cell group; or the first bearer is the second bearer, and the second bearer is a bearer of the first cell group.
20. The user equipment according to claim 17, comprising a fourth processing module; the fourth processing module establishes a first type entity corresponding to the second cell group aiming at the separated data radio bearer; reconfiguring at least one of a second type entity, the first type logical channel, and a second type logical channel corresponding to the second cell group for a separate data radio bearer; wherein the establishing the first type entity corresponding to the second cell group comprises at least one of configuring a discard clock, configuring an RLC mode, a PDCP SN size, a header compression algorithm, and status report feedback.
21. The user equipment of claim 17, wherein the first processing module 101 receives a first signaling; wherein the first signaling is used to instruct the user equipment to establish a separate data radio bearer in the second cell group.
22. The ue of claim 17, wherein the first processing module 101 receives a second wireless signal; wherein the second wireless signal comprises configuration information corresponding to at least one of the first cell group, the second cell group, and the third cell group; the configuration information comprises at least one of system information, random access channel configuration information, physical cell identification, frequency band information, wireless resource configuration information and auxiliary cell group invariance indication information; the first message is sent in the secondary cell group; the secondary cell group invariance indication information is used to indicate that a secondary cell group configuration is to be kept unchanged.
23. The user equipment according to any of claims 17-22, wherein the first bearer and the second bearer are for a same user equipment.
24. A first base station apparatus used for wireless communication, comprising:
-a second processing module receiving the first wireless signal;
-a sixth processing module releasing the first type bearer; releasing a high-level entity set corresponding to the first bearer and a first-class logic channel; keeping a high-level entity set corresponding to the second bearer and a first-class logic channel;
wherein the first wireless signal comprises a first report; the first report is related to the channel quality of the first link, the channel quality of the second link and the channel quality of the third link; the first report is used to determine a user equipment handover; the first link is a wireless link from a base station corresponding to a first cell to the user equipment, the second link is a wireless link from a base station corresponding to a second cell to the user equipment, and the third link is a wireless link from a base station corresponding to a third cell to the user equipment; the channel quality is at least one of RSRP, RSRQ, and RSSI; the first cell belongs to a first cell group, the second cell belongs to a second cell group, and the third cell belongs to a third cell group; the first cell and the second cell are both camping cells of the user equipment; the first and second cell groups belong to different RATs, the second and third cell groups belong to the same RAT; the first type bearer comprises the first bearer, the first bearer being used to determine a configuration of the first cell group and the second cell group; the second bearer is used to determine a configuration of the second cell group; the maintaining means not releasing the higher layer entity set and the first type logical channel corresponding to the second cell group.
25. The first base station apparatus of claim 24, wherein the sixth processing module maintains at least one of the first type bearer and the second type bearer; wherein the first type bearer is used for carrying control signaling, and the second type bearer is used for carrying data information; the first type bearer comprises at least one of a first bearer and a second bearer; the first bearer is used to determine a configuration of the first cell group and the second cell group; the second bearer is used to determine a configuration of the second cell group.
26. The first base station device according to claim 24, characterized in that the sixth processing module establishes the first type bearer; wherein the first type bearer is the first bearer, and the first bearer is a bearer of the second cell group; or the first bearer is the second bearer, and the second bearer is a bearer of the first cell group.
27. The first base station apparatus of claim 24, wherein the sixth processing module establishes a first type entity corresponding to the second cell group for separate data radio bearers, and reconfigures at least one of a second type entity corresponding to the second cell group and the second type logical channels for separate data radio bearers; wherein the establishing the first type entity corresponding to the second cell group comprises at least one of configuring a discard clock, configuring an RLC mode, a PDCP SN size, a header compression algorithm, and status report feedback.
28. The first base station device according to claim 24, characterized in that the second processing module 201 sends a first signaling; wherein the first signaling is used to instruct a sender of the first wireless signal to establish a separate data radio bearer in the second cell group.
29. The first base station device according to claim 24, characterized in that the second processing module 201 transmits a second wireless signal; wherein the second wireless signal comprises configuration information corresponding to at least one of the first cell group, the second cell group, and the third cell group; the configuration information comprises at least one of system information, random access channel configuration information, physical cell identification, frequency band information, wireless resource configuration information and auxiliary cell group invariance indication information; the first message is sent in the secondary cell group; the secondary cell group invariance indication information is used to indicate that a secondary cell group configuration is to be kept unchanged.
30. The first base station apparatus of claim 24, comprising a fifth processing module for transmitting a second signaling, wherein the second signaling is used for requesting handover from a second base station; and the second signaling comprises second cell group invariance indication information.
31. The first base station apparatus of claim 30, comprising a fifth processing module, which receives the third signaling; wherein the third signaling is used for acknowledgement of the second signaling.
32. The first base station device according to any of claims 24 to 31, wherein said first bearer and said second bearer are for the same user equipment.
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