CN109479217B - Secondary cell configuration method, communication method, base station and user equipment - Google Patents

Secondary cell configuration method, communication method, base station and user equipment Download PDF

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CN109479217B
CN109479217B CN201680084422.9A CN201680084422A CN109479217B CN 109479217 B CN109479217 B CN 109479217B CN 201680084422 A CN201680084422 A CN 201680084422A CN 109479217 B CN109479217 B CN 109479217B
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secondary cell
user equipment
activated
cells
measurement report
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CN109479217A (en
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周化雨
招溢利
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Huizhou TCL Mobile Communication Co Ltd
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Huizhou TCL Mobile Communication Co Ltd
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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
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0069—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink

Abstract

The invention discloses a secondary cell configuration method. The method comprises the following steps: preparing an association relationship among at least three secondary cells for the user equipment, wherein the association relationship comprises a corresponding relationship that the user equipment can be switched from each secondary cell to at least another secondary cell; and sending the association relation to the user equipment so as to configure at least part of the at least three secondary cells to the user equipment, so that the user equipment uses at least one activated secondary cell to measure at least another non-activated secondary cell corresponding to the activated secondary cell and does not measure at least one non-activated secondary cell not corresponding to the activated secondary cell. The invention also discloses a communication method, a base station and user equipment.

Description

Secondary cell configuration method, communication method, base station and user equipment
Technical Field
The present invention relates to the field of mobile communications, and in particular, to a secondary cell configuration method, a communication method, a base station, and a user equipment.
Background
In order to meet the demand of people for higher and higher communication rate, a concept of aggregated carriers is proposed in a Long Term Evolution-Advanced (LTE-Advanced) system. The aggregated carrier enables multiple continuous or discontinuous carriers under the same base station to be aggregated together for data transmission, and serves User Equipment (UE) to provide a required communication rate.
Each carrier corresponds to an individual Cell (Cell). Concepts of a primary cell (PCell) and a secondary cell (SCell) are defined, corresponding to a primary carrier and a secondary carrier, respectively, to which the UE is currently aggregated. The primary cell and all secondary cells are collectively referred to as the serving cell. Only one primary cell is a cell to which the UE initially accesses, and is responsible for Radio Resource Control (RRC) communication with the UE, and is always in an active state. The number of secondary cells is not constant for providing additional radio resources. The configuration of the secondary cell is performed through RRC reconfiguration, i.e., the secondary cell is added and deleted in the serving cell set of the UE.
The UE side secondary cell has two states, active and inactive, the UE cannot transmit data on the inactive secondary cell, and the UE can periodically measure the inactive secondary cell in the serving cell set and upload a measurement report to the base station through the primary cell. The secondary cell configured for the UE is in an inactivated state and can be used after being activated. The base station may send instructions to the UE to change the state of the secondary cell.
When the UE is handed over from secondary cell a to secondary cell B, there are two possible secondary cell configuration methods. The first is that the base station adds a secondary cell a to the UE first and sends an instruction to the UE to activate the secondary cell a. When the base station judges that the UE needs to switch the auxiliary cell, the base station modifies the auxiliary cell A into the auxiliary cell B (which is equivalent to releasing the auxiliary cell A and adding the auxiliary cell B) to the UE, and sends another instruction to the UE to deactivate the auxiliary cell A and activate the auxiliary cell B. And the second method is that the base station configures the auxiliary cells A and B together to the UE and sends an instruction to the UE to activate the auxiliary cell A, at the moment, the UE needs to prepare for the inactive auxiliary cell B, the operation comprises measuring the auxiliary cell B and uploading a measurement report, and when the base station judges that the UE needs to switch the auxiliary cells, the base station directly sends an instruction to the UE to deactivate the auxiliary cell A and activate the auxiliary cell B.
It can be seen that, with the first method, the secondary cell to be switched (i.e. the secondary cell to be switched) needs to be configured to the UE, and each secondary cell configuration needs RRC reconfiguration, which has a delay, so that the UE cannot be switched in time when the switching speed is fast, and the signal quality is affected. In addition, if the situation of repeated switching between the auxiliary cells A and B occurs, RRC reconfiguration needs to be repeated, and redundant uplink data is brought; the second method needs to configure all the secondary cells to the UE, and then the UE will perform preparation for the inactive secondary cells, including measurement and uploading measurement reports, and when the number of inactive secondary cells is large, the UE will be burdened greatly and will bring a large amount of uplink data. Both approaches have drawbacks when the UE needs to switch between a larger number of secondary cells faster.
Disclosure of Invention
The technical problem mainly solved by the invention is to provide an auxiliary cell configuration method, a communication method, a base station and user equipment, which can solve the problem that the auxiliary cell configuration method in the prior art cannot adapt to the occasion that UE needs to be switched between a large number of auxiliary cells quickly.
In order to solve the technical problems, the invention adopts a technical scheme that: a method for configuring a secondary cell is provided, and the method comprises the following steps: preparing an association relationship among at least three secondary cells for the user equipment, wherein the association relationship comprises a corresponding relationship that the user equipment can be switched from each secondary cell to at least another secondary cell; and sending the association relation to the user equipment so as to configure at least part of the at least three secondary cells to the user equipment, so that the user equipment uses at least one activated secondary cell to measure at least another non-activated secondary cell corresponding to the activated secondary cell and does not measure at least one non-activated secondary cell not corresponding to the activated secondary cell.
The association relationship includes a correspondence relationship between each secondary cell and all adjacent secondary cells thereof, wherein at least two secondary cells of the at least three secondary cells are not adjacent.
Wherein the method further comprises: receiving a measurement report obtained by measurement from user equipment; when the user equipment needs to be switched to the secondary cell indicated by the measurement report, an activation/deactivation instruction is sent to the user equipment, and the activation/deactivation instruction is used for deactivating the activated secondary cell and activating the secondary cell indicated by the measurement report.
Wherein the activate/deactivate instruction is implemented by combined L2/L1 signaling.
In order to solve the technical problem, the invention adopts another technical scheme that: there is provided a communication method, the method comprising: the user equipment receives the incidence relation among the at least three secondary cells and executes an instruction for configuring at least part of the at least three secondary cells to the user equipment, wherein the incidence relation comprises the corresponding relation that the user equipment can be switched from each secondary cell to at least another secondary cell; at least one activated secondary cell configured to the user equipment is used, at least another non-activated secondary cell having a correspondence with the activated secondary cell is measured, and at least one non-activated secondary cell having no correspondence with the activated secondary cell is not measured.
And the user equipment only carries out the measurement of the inactive secondary cell on the inactive secondary cell which has the corresponding relation with the active secondary cell.
The association relationship includes a correspondence relationship between each secondary cell and all adjacent secondary cells thereof, wherein at least two secondary cells of the at least three secondary cells are not adjacent.
Wherein the method further comprises: uploading a measurement report obtained by measurement; receiving an activation/deactivation command, wherein the activation/deactivation command is generated when the user equipment needs to switch to a secondary cell indicated by the measurement report; and responding to the activation/deactivation instruction to deactivate the activated secondary cell and activate the secondary cell indicated by the measurement report.
Wherein the activate/deactivate instruction is implemented by combined L2/L1 signaling.
In order to solve the technical problem, the invention adopts another technical scheme that: there is provided a base station including: a preparation module, configured to prepare, for a user equipment, an association relationship between at least three secondary cells, where the association relationship includes a correspondence relationship in which the user equipment can be switched from each secondary cell to at least another secondary cell; a sending module, configured to send the association relationship to the user equipment, so as to configure at least part of the at least three secondary cells to the user equipment, so that the user equipment uses at least one activated secondary cell to measure at least another inactivated secondary cell having a correspondence with the activated secondary cell, and does not measure at least one inactivated secondary cell having no correspondence with the activated secondary cell.
The association relationship includes a correspondence relationship between each secondary cell and all adjacent secondary cells thereof, wherein at least two secondary cells of the at least three secondary cells are not adjacent.
Wherein, the base station further comprises: a receiving module, configured to receive a measurement report obtained by measurement from a user equipment; and the control module is used for sending an activation/deactivation instruction to the user equipment when the user equipment needs to be switched to the secondary cell indicated by the measurement report, wherein the activation/deactivation instruction is used for deactivating the activated secondary cell and activating the secondary cell indicated by the measurement report.
In order to solve the technical problem, the invention adopts another technical scheme that: there is provided a user equipment comprising: a configuration module, configured to receive an association relationship between at least three secondary cells, and execute an instruction to configure at least some of the at least three secondary cells to a user equipment, where the association relationship includes a correspondence relationship that the user equipment can switch from each secondary cell to at least another secondary cell; a measurement module, configured to use at least one activated secondary cell configured to the user equipment, and to perform measurement on at least another non-activated secondary cell having a correspondence relationship with the activated secondary cell, and not to perform measurement on at least one non-activated secondary cell having no correspondence relationship with the activated secondary cell.
The measurement module is used for measuring the inactive secondary cell only for the inactive secondary cell which has a corresponding relation with the active secondary cell.
Wherein the user equipment further comprises: the uploading module is used for uploading a measurement report obtained by measurement; a receiving module, configured to receive an activation/deactivation instruction, where the activation/deactivation instruction is generated when the ue needs to switch to a secondary cell indicated by the measurement report; and a response module, configured to respond to the activation/deactivation instruction to deactivate the activated secondary cell and activate the secondary cell indicated by the measurement report.
In order to solve the technical problem, the invention adopts another technical scheme that: there is provided a base station including: the system comprises a processor, a transmitter and a receiver, wherein the processor is respectively connected with the transmitter and the receiver; the processor is configured to prepare an association relationship between at least three secondary cells for the user equipment, where the association relationship includes a correspondence relationship in which the user equipment can be switched from each secondary cell to at least another secondary cell; and sending the association relation to the user equipment through a transmitter so as to configure at least part of the at least three secondary cells to the user equipment, so that the user equipment uses at least one activated secondary cell to measure at least another inactivated secondary cell corresponding to the activated secondary cell and does not measure at least one inactivated secondary cell not corresponding to the activated secondary cell.
Wherein the processor is further configured to receive, by the receiver, a measurement report resulting from the measurement from the user equipment; when the user equipment needs to switch to the secondary cell indicated by the measurement report, an activation/deactivation instruction is sent to the user equipment through the transmitter, and the activation/deactivation instruction is used for deactivating the activated secondary cell and activating the secondary cell indicated by the measurement report.
In order to solve the technical problem, the invention adopts another technical scheme that: there is provided a user equipment comprising: the processor is connected with the transmitter and the receiver respectively; the processor is configured to receive, through the receiver, an association relationship between the at least three secondary cells, and execute an instruction to configure at least some of the at least three secondary cells to the user equipment, where the association relationship includes a correspondence relationship in which the user equipment can be switched from each secondary cell to at least another secondary cell; at least one activated secondary cell configured to the user equipment is used, at least another non-activated secondary cell having a correspondence with the activated secondary cell is measured, and at least one non-activated secondary cell having no correspondence with the activated secondary cell is not measured.
Wherein the processor is further configured to perform inactive secondary cell measurement only on inactive secondary cells having a correspondence relationship with the activated secondary cells.
Wherein the processor is further configured to upload, by the transmitter, a measurement report obtained by the measurement; receiving, by a receiver, an activation/deactivation command, where the activation/deactivation command is generated when a ue needs to switch to a secondary cell indicated by a measurement report; and responding to the activation/deactivation instruction to deactivate the activated secondary cell and activate the secondary cell indicated by the measurement report.
The invention has the beneficial effects that: the association relationship among the at least three auxiliary cells is prepared and sent to the user equipment, so that at least part of the at least three auxiliary cells are configured to the user equipment, the user equipment can directly switch among the configured auxiliary cells without RRC reconfiguration, and the influence of signal quality and possible redundant uplink data brought by frequent RRC reconfiguration are reduced; meanwhile, the user equipment only needs to measure at least another inactivated auxiliary cell with the corresponding relation existing in the currently activated auxiliary cell, and does not need to measure all the inactivated auxiliary cells, so that the burden of the user equipment is reduced, and the uplink data volume is reduced. In addition, the user equipment can directly acquire other switchable auxiliary cells from the association relation according to the currently activated auxiliary cell without using a complex algorithm for detection, so that the detection complexity of the downlink control channel is reduced.
Drawings
Fig. 1 is a flowchart of a secondary cell configuration method according to a first embodiment of the present invention;
fig. 2 is a flowchart of a secondary cell configuration method according to a second embodiment of the present invention;
FIG. 3 is a flow chart of a first embodiment of the communication method of the present invention;
fig. 4 is a flow chart of a second embodiment of the communication method of the present invention;
fig. 5 is a schematic structural diagram of a base station according to a first embodiment of the present invention;
fig. 6 is a schematic structural diagram of a base station according to a second embodiment of the present invention;
fig. 7 is a schematic structural diagram of a base station according to a third embodiment of the present invention;
fig. 8 is a schematic structural diagram of a first embodiment of a user equipment of the present invention;
fig. 9 is a schematic structural diagram of a second embodiment of a user equipment of the present invention;
fig. 10 is a schematic structural diagram of a third embodiment of the user equipment in the present invention.
Detailed Description
As shown in fig. 1, a first embodiment of a secondary cell configuration method according to the present invention includes:
s11: preparing an association relationship between at least three secondary cells for the user equipment.
The association includes a correspondence that the user equipment can switch from each secondary cell to at least another secondary cell. In the at least three secondary cells, there are at least two secondary cells that cannot be directly handed over to each other. The secondary cell and the primary cell may correspond to the same base station, and the positions of the primary cell and the secondary cell may be the same or different. The primary cell and the secondary cell may correspond to different base stations if there is a fast enough backhaul between the different base stations and allowed to be controlled by each other. The carrier frequency bands of the primary cell and the secondary cell may be the same or different.
The association relationship may be expressed in a table format or in other data formats. The relationship is specifically described by taking the table shown in table 1 as an example.
Figure BDA0001821546710000061
Figure BDA0001821546710000071
TABLE 1
In table 1, each row and each column respectively represents a secondary cell, and the numerical references 1, 2, …, 5 in the first row and the first column (from left to right, counting from top to bottom) represent the numbers of the secondary cells. Except for the numbers of the first row and the first column, the number 1 in the table represents that the secondary cell corresponding to the row can be switched to the secondary cell corresponding to the column, and the number 0 represents that the secondary cell corresponding to the row cannot be switched to the secondary cell corresponding to the column. Of course, the other way around, the number in the table represents whether the secondary cell corresponding to the column can be switched to the secondary cell corresponding to the row. In general, the switching between the secondary cells is corresponding, i.e. the switching from the secondary cell 1 to the secondary cell 2 is possible, and the switching from the secondary cell 2 to the secondary cell 1 is also possible, and the rows and columns of the table can be interchanged. In addition to the numbers 0, 1 in table 1, the switchable and non-switchable between secondary cells may also be represented in the form of letters, symbols, numbers, etc.
As can be seen from table 1, the secondary cells 1, 2 and 3 can be handed over to each other, the secondary cells 3 and 4 can be handed over to each other, and the secondary cells 4 and 5 can be handed over to each other. The base station (the positions of the main cell and the auxiliary cell are not the main base station at the same time) can determine whether the auxiliary cells can be switched with each other or not according to whether the auxiliary cells are adjacent or not and the coverage areas of the adjacent auxiliary cells have an intersection; the non-adjacent secondary cell can also be defined as a switchable secondary cell according to the deployment situation, the traffic load and the like of the non-adjacent secondary cell. The corresponding relationship between the secondary cells is not constant, and the base station can determine which secondary cells each secondary cell can switch to, and prepare the association relationship according to the information of the position, the moving direction, the moving speed, the state of the secondary cells and the like of the user equipment.
In an embodiment of the secondary cell configuration method of the present invention, the association relationship includes a correspondence relationship between each secondary cell and all its neighboring secondary cells, and at least two of the at least three secondary cells are not neighboring. Here neighboring means that the coverage areas of different secondary cells intersect. In other embodiments of the secondary cell configuration method of the present invention, some or all of the secondary cells having a corresponding relationship in the association relationship may not be adjacent. The method may continue to step S12.
S12: and sending the association relation to the user equipment so as to configure at least part of the at least three secondary cells to the user equipment.
And the base station sends the association relation to the user equipment, and configures at least part of the at least three secondary cells to the user equipment through RRC reconfiguration. The association relationship may be sent using a separate instruction or a separate RRC reconfiguration, or may be sent simultaneously in the RRC reconfiguration process of configuring the secondary cell to the user equipment. After at least part of the at least three secondary cells are configured to the user equipment, the user equipment does not need to perform RRC reconfiguration when switching between the configured secondary cells.
The base station may prepare and transmit association for the user equipment and configure the secondary cell when the user equipment does not use any secondary cell, or may perform the above operation when the user equipment already uses some secondary cells. After the base station sends the association relation to the user equipment, the association relation can be prepared and sent again according to needs and the secondary cell can be configured.
The user equipment may use the at least one activated secondary cell and then prepare at least another non-activated secondary cell for correspondence with the activated secondary cell, including measurement and uploading of a measurement report, and not perform measurement on the at least one non-activated secondary cell for non-correspondence with the activated secondary cell.
In an embodiment of the secondary cell configuration method of the present invention, the ue may perform the inactive secondary cell measurement only on the inactive secondary cell having a corresponding relationship with the active secondary cell. Still taking table 1 as an example to explain, the user equipment uses the activated secondary cell 1, searches in the row corresponding to the secondary cell 1, finds that the indexes (i.e. corresponding to D) of the columns corresponding to the secondary cells 2 and 3 are 1, and the indexes corresponding to other rows are 0. At this time, the user equipment can only switch from the secondary cell 1 to the secondary cells 2 and 3, but not to the secondary cells 4 and 5, so the user equipment only needs to measure the secondary cells 2 and 3. By analogy, the situation when the user equipment activates other secondary cells can be obtained.
If the ue uses at least two activated secondary cells simultaneously, it needs to prepare other non-activated secondary cells having a corresponding relationship with each activated secondary cell simultaneously, including measuring all non-activated secondary cells having a corresponding relationship with any one activated secondary cell and uploading a measurement report including all measurement results.
Through the implementation of the embodiment, the user equipment can directly switch between the configured secondary cells without RRC reconfiguration, thereby reducing the signal quality influence and the possible redundant uplink data caused by frequent RRC reconfiguration; meanwhile, the user equipment only needs to measure at least another inactivated auxiliary cell with the corresponding relation existing in the currently activated auxiliary cell, and does not need to measure all the inactivated auxiliary cells, so that the burden of the user equipment is reduced, and the uplink data volume is reduced. When the user equipment needs to switch between a large number of secondary cells more quickly, a good effect can be achieved. In addition, the user equipment can directly acquire other switchable auxiliary cells from the association relation according to the currently activated auxiliary cell without using a complex algorithm for detection, so that the detection complexity of the downlink control channel is reduced.
As shown in fig. 2, the second embodiment of the secondary cell configuring method according to the present invention is based on the first embodiment of the secondary cell configuring method according to the present invention, and further includes, after step S12:
s13: a measurement report resulting from measurements from the user equipment is received.
And the user equipment carries out periodic measurement according to the incidence relation, generates and uploads a measurement report to the base station through the main cell according to a preset measurement report type, wherein the measurement report type comprises periodic report, event report and event-triggered periodic report. The method may continue to step S14.
S14: and when the user equipment needs to switch to the secondary cell indicated by the measurement report, sending an activation/deactivation instruction to the user equipment.
The base station may determine whether the ue needs to be handed over and to which secondary cell the ue should be handed over according to the location of the ue, the measurement report, and the state of the secondary cell, for example, the ue moves from the coverage of one secondary cell to the coverage of another secondary cell, the signal quality of the secondary cell currently activated by the ue is reduced, or the service load of the secondary cell currently activated by the ue is too heavy. When the user equipment needs to switch to the secondary cell indicated by the measurement report, an activation/deactivation instruction is sent to the user equipment, and the activation/deactivation instruction is used for deactivating the activated secondary cell and activating the secondary cell indicated by the measurement report.
When the user equipment needs to switch between the configured secondary cells, the base station only needs to send an activation/deactivation command, and does not need to perform RRC reconfiguration.
The activate/deactivate command may be implemented by L2 signaling, with L2 signaling supporting activation and deactivation of up to 8 secondary cells in release R10 of the third Generation Partnership Project (3 GPP) specification, and L2 signaling supporting activation and deactivation of up to 32 secondary cells in release R13. In order to manage a larger number of secondary cells or operate faster, the L2 signaling may be extended, other signaling capable of managing more secondary cells may be used, or L2 signaling and other signaling may be combined, for example, the secondary cells are grouped and the combined L1/L2 signaling is used as an activation/deactivation command, the L1 signaling is Downlink Control Information (DCI) 2D format two-bit physical Downlink shared channel resource element mapping and Quasi-concatenation Indication (PDSCH RE mapping and Quasi collocated Indication, PQI), the L1 signaling represents the secondary cell number in a group, and the L2 signaling represents the group number, which may extend the manageable number of secondary cells to 4 times of the prior art. Of course, L1 signaling may indicate the group number, and L2 signaling may indicate the secondary cell number in the group. The larger the number of bits of L1, the larger the number of secondary cells that can be managed.
As shown in fig. 3, the first embodiment of the communication method of the present invention includes:
s21: the user equipment receives the incidence relation among the at least three secondary cells and executes an instruction of configuring at least part of the at least three secondary cells to the user equipment.
The association between the at least three secondary cells is transmitted by the base station. The association includes a correspondence that the user equipment can switch from each secondary cell to at least another secondary cell. In the at least three secondary cells, there are at least two secondary cells that cannot be directly handed over to each other. The secondary cell and the primary cell correspond to the same base station, and the positions of the primary cell and the secondary cell can be the same or different. The primary cell and the secondary cell may correspond to different base stations if there is a fast enough backhaul between the different base stations and allowed to be controlled by each other.
The association relationship may be expressed in a table format or in other data formats. Specific examples may refer to table 1 and its corresponding description.
And the base station configures at least part of the at least three secondary cells to the user equipment through RRC reconfiguration. The process of receiving the association relationship by the ue may be independent of the RRC reconfiguration, or may be receiving the association relationship in the RRC reconfiguration process. The user equipment may execute the instruction to configure at least some of the at least three secondary cells to the user equipment, and then when switching between the configured secondary cells, RRC reconfiguration is not required. The method may continue to step S22.
S22: activating at least one secondary cell configured to the user equipment, measuring at least another non-activated secondary cell having a correspondence with the activated secondary cell, and not measuring the at least one non-activated secondary cell having no correspondence with the activated secondary cell.
The user equipment may receive an activation/deactivation command sent by the base station to activate at least one secondary cell configured to the user equipment, or may activate itself. In an embodiment of the communication method of the present invention, the ue may perform the inactive secondary cell measurement only on the inactive secondary cell having a correspondence relationship with the active secondary cell. If the user equipment simultaneously activates at least two secondary cells, it needs to simultaneously measure other non-activated secondary cells with a corresponding relationship between each secondary cell.
Through the implementation of the embodiment, the user equipment can be directly switched between the configured secondary cells without RRC reconfiguration, and the signal quality influence and the possible redundant uplink data caused by frequent RRC reconfiguration are reduced; meanwhile, the user equipment only needs to measure at least another inactivated auxiliary cell with the corresponding relation existing in the currently activated auxiliary cell, and does not need to measure all the inactivated auxiliary cells, so that the burden of the user equipment is reduced, and the uplink data volume is reduced. When the user equipment needs to switch between a large number of secondary cells more quickly, a good effect can be achieved. In addition, the user equipment can directly acquire other switchable auxiliary cells from the association relation according to the currently activated auxiliary cell without using a complex algorithm for detection, so that the detection complexity of the downlink control channel is reduced.
In an embodiment of the communication method of the present invention, the association relationship includes a correspondence relationship between each secondary cell and all its neighboring secondary cells, and at least two of the at least three secondary cells are not neighboring. Here neighboring means that the coverage areas of different secondary cells intersect. The user equipment can simply search the adjacent secondary cells according to the association relation without detecting the adjacent cells by using a complex nonlinear algorithm. This embodiment may be combined with any of the embodiments of the communication method of the present invention. In other embodiments of the communication method of the present invention, some or all of the secondary cells having a corresponding relationship in the association relationship may not be adjacent.
As shown in fig. 4, a second embodiment of the communication method of the present invention is based on the first embodiment of the communication method of the present invention, and further includes:
s23: and uploading a measurement report obtained by measurement.
And the user equipment carries out periodic measurement according to the incidence relation, generates and uploads a measurement report to the base station through the main cell according to a preset measurement report type, wherein the measurement report type comprises periodic report, event report and event-triggered periodic report. The method may continue to step S24.
S24: an activate/deactivate instruction is received.
The activation/deactivation command is generated when the base station determines that the ue needs to switch to the secondary cell indicated by the measurement report. The method may continue to step S25.
S25: and responding to the activation/deactivation instruction to deactivate the activated secondary cell and activate the secondary cell indicated by the measurement report.
After the switching of the secondary cell is completed, the user equipment finds out the switchable inactive secondary cell in the association relationship again according to the currently activated secondary cell and measures the non-activated secondary cell.
As shown in fig. 5, the first embodiment of the base station of the present invention includes:
a preparing module 101, configured to prepare, for a user equipment, an association relationship between at least three secondary cells, where the association relationship includes a correspondence relationship that the user equipment can be switched from each secondary cell to at least another secondary cell.
A sending module 102, configured to send the association relationship to a user equipment, so as to configure at least part of secondary cells in the at least three secondary cells to the user equipment, so that the user equipment uses at least one activated secondary cell to measure at least another inactivated secondary cell having a correspondence relationship with the activated secondary cell, and does not measure at least one inactivated secondary cell having no correspondence relationship with the activated secondary cell.
For specific content, please refer to fig. 1 and the first embodiment of the secondary cell configuration method in the present invention corresponding to fig. 1, and details thereof are not repeated herein.
Through the implementation of the embodiment, the user equipment can be directly switched between the configured secondary cells without RRC reconfiguration, and the signal quality influence and the possible redundant uplink data caused by frequent RRC reconfiguration are reduced; meanwhile, the user equipment only needs to measure at least another inactivated auxiliary cell with the corresponding relation existing in the currently activated auxiliary cell, and does not need to measure all the inactivated auxiliary cells, so that the burden of the user equipment is reduced, and the uplink data volume is reduced. When the user equipment needs to switch between a large number of secondary cells more quickly, a good effect can be achieved. In addition, the user equipment can directly acquire other switchable auxiliary cells from the association relation according to the currently activated auxiliary cell without using a complex algorithm for detection, so that the detection complexity of the downlink control channel is reduced.
In an embodiment of the base station of the present invention, the association relationship includes a correspondence relationship between each secondary cell and all its neighboring secondary cells, and at least two of the at least three secondary cells are not neighboring. Here neighboring means that the coverage areas of different secondary cells intersect. The user equipment can simply search the adjacent secondary cells according to the association relation without detecting the adjacent cells by using a complex nonlinear algorithm. This embodiment can be combined with any of the embodiments of the base station of the present invention. In other embodiments of the base station of the present invention, some or all of the secondary cells having a corresponding relationship in the association relationship may not be adjacent.
As shown in fig. 6, the second embodiment of the base station of the present invention is based on the first embodiment of the base station of the present invention, and further includes:
a receiving module 103, configured to receive a measurement report obtained by measurement from the user equipment.
The control module 104 is configured to send an activation/deactivation instruction to the user equipment when the user equipment needs to switch to the secondary cell indicated by the measurement report, where the activation/deactivation instruction is used to deactivate the activated secondary cell and activate the secondary cell indicated by the measurement report.
For details, please refer to fig. 2 and fig. 2 for the second embodiment of the secondary cell configuration method of the present invention, which will not be described herein again.
As shown in fig. 7, a third embodiment of the base station of the present invention includes: a processor 110, a transmitter 120 and a receiver 130, the processor 110 being connected to the transmitter 120 and the receiver 130, respectively, by a bus.
The transmitter 120 is used for transmitting data, the receiver 130 is used for receiving data, and the transmitter 120 and the receiver 130 are interfaces of the base station for communicating with other communication devices.
The processor 110 controls the operation of the base station, and the processor 110 may also be referred to as a Central Processing Unit (CPU). The processor 110 may be an integrated circuit chip having signal processing capabilities. The processor 110 may also be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The base station may further include a memory (not shown) for storing instructions and data necessary for the operation of the processor 110 and for storing data received by the receiver 130.
The processor 110 is configured to prepare, for the user equipment, an association relationship between at least three secondary cells, where the association relationship includes a correspondence relationship that the user equipment can be switched from each secondary cell to at least another secondary cell; the association relationship is sent to the ue through the transmitter 120, so as to configure at least some of the at least three secondary cells to the ue, so that the ue uses at least one activated secondary cell to measure at least another inactivated secondary cell corresponding to the activated secondary cell, and does not measure at least one inactivated secondary cell not corresponding to the activated secondary cell.
Further, the processor 110 is configured to receive a measurement report obtained by measuring from the user equipment through the receiver 130; when the ue needs to switch to the secondary cell indicated by the measurement report, an activation/deactivation command is sent to the ue through the transmitter 120, where the activation/deactivation command is used to deactivate the activated secondary cell and activate the secondary cell indicated by the measurement report.
As shown in fig. 8, the first embodiment of the ue of the present invention includes:
a configuration module 201, configured to receive an association relationship between at least three secondary cells sent by a base station, and execute an instruction for configuring at least some of the at least three secondary cells to a user equipment, where the association relationship includes a correspondence relationship that the user equipment can switch from each secondary cell to at least another secondary cell.
A measuring module 202, configured to use at least one activated secondary cell configured to the user equipment, and measure at least another non-activated secondary cell having a correspondence relationship with the activated secondary cell, and not measure at least one non-activated secondary cell having no correspondence relationship with the activated secondary cell.
For details, please refer to fig. 3 and fig. 3 for the first embodiment of the communication method of the present invention, which will not be described herein again.
Through the implementation of the embodiment, the user equipment can be directly switched between the configured secondary cells without RRC reconfiguration, and the signal quality influence and the possible redundant uplink data caused by frequent RRC reconfiguration are reduced; meanwhile, the user equipment only needs to measure at least another inactivated auxiliary cell with the corresponding relation existing in the currently activated auxiliary cell, and does not need to measure all the inactivated auxiliary cells, so that the burden of the user equipment is reduced, and the uplink data volume is reduced. When the user equipment needs to switch between a large number of secondary cells more quickly, a good effect can be achieved. In addition, the user equipment can directly acquire other switchable auxiliary cells from the association relation according to the currently activated auxiliary cell without using a complex algorithm for detection, so that the detection complexity of the downlink control channel is reduced.
In an embodiment of the user equipment of the present invention, the association includes a correspondence between each secondary cell and all its neighboring secondary cells, and at least two of the at least three secondary cells are not neighboring. Here neighboring means that the coverage areas of different secondary cells intersect. The user equipment can simply search the adjacent secondary cells according to the association relation without detecting the adjacent cells by using a complex nonlinear algorithm. This embodiment can be combined with any of the embodiments of the user equipment of the present invention. In other embodiments of the user equipment of the present invention, part or all of the secondary cells having a corresponding relationship in the association relationship may not be adjacent.
As shown in fig. 9, the second embodiment of the ue of the present invention is based on the first embodiment of the ue of the present invention, and further includes:
and an uploading module 203 for uploading the measurement report obtained by the measurement.
The receiving module 204 is configured to receive an activation/deactivation command, where the activation/deactivation command is generated when the ue needs to switch to the secondary cell indicated by the measurement report.
A response module 205, configured to respond to the activation/deactivation instruction to deactivate the activated secondary cell and activate the secondary cell indicated by the measurement report.
For specific content, please refer to fig. 4 and the second embodiment of the communication method of the present invention corresponding to fig. 4, and details thereof are not repeated herein.
As shown in fig. 10, a third embodiment of the user equipment of the present invention includes: a processor 210, a transmitter 220 and a receiver 230, the processor 210 being connected to the transmitter 220 and the receiver 230, respectively, by a bus.
The transmitter 220 is used for transmitting data, the receiver 230 is used for receiving data, and the transmitter 220 and the receiver 230 are interfaces for the user equipment to communicate with other communication devices.
The processor 210 controls the operation of the user equipment, and the processor 210 may also be referred to as a Central Processing Unit (CPU). The processor 210 may be an integrated circuit chip having signal processing capabilities. The processor 210 may also be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The user equipment may further include a memory (not shown) for storing instructions and data necessary for the operation of the processor 210 and for storing data received by the receiver 230.
The processor 210 is configured to receive, through the receiver 230, an association relationship between at least three secondary cells, and execute an instruction to configure at least some of the at least three secondary cells to the user equipment, where the association relationship includes a correspondence relationship that the user equipment can be switched from each secondary cell to at least another secondary cell; at least one activated secondary cell configured to the user equipment is used, at least another non-activated secondary cell having a correspondence with the activated secondary cell is measured, and at least one non-activated secondary cell having no correspondence with the activated secondary cell is not measured.
Further, the processor 210 is configured to perform the inactive secondary cell measurement only on the inactive secondary cells corresponding to the active secondary cells.
Further, the processor 210 is configured to upload a measurement report obtained by the measurement through the transmitter 220; receiving, by the receiver 230, an activation/deactivation command, which is generated when the ue needs to switch to the secondary cell indicated by the measurement report; and responding to the activation/deactivation instruction to deactivate the activated secondary cell and activate the secondary cell indicated by the measurement report.
In the several embodiments provided in the present invention, it should be understood that the disclosed base station, user equipment and method can be implemented in other manners. For example, the above-described embodiments of the base station and the user equipment are merely illustrative, and for example, the division of the modules or units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (14)

1. A method for configuring a secondary cell, comprising:
preparing an association relationship among at least three secondary cells for user equipment, wherein the association relationship comprises a corresponding relationship that the user equipment can be switched from each secondary cell to at least another secondary cell;
sending the association relationship to the user equipment to configure at least part of the secondary cells in the at least three secondary cells to the user equipment, so that the user equipment uses at least one activated secondary cell to measure at least another inactivated secondary cell having the correspondence relationship with the activated secondary cell and does not measure at least one inactivated secondary cell having no correspondence relationship with the activated secondary cell;
receiving a measurement report resulting from the measurement from the user equipment;
when the user equipment needs to switch to the secondary cell indicated by the measurement report, an activation/deactivation instruction is sent to the user equipment, and the activation/deactivation instruction is used for deactivating the activated secondary cell and activating the secondary cell indicated by the measurement report.
2. The method of claim 1,
the association includes the correspondence between each secondary cell and all its neighboring secondary cells, where at least two of the at least three secondary cells are not neighboring.
3. The method of claim 1, comprising:
the activate/deactivate instruction is implemented by combined L2/L1 signaling.
4. A method of communication, comprising:
the method comprises the steps that user equipment receives incidence relations among at least three secondary cells, and executes instructions for configuring at least part of the at least three secondary cells to the user equipment, wherein the incidence relations comprise corresponding relations of the user equipment which can be switched from each secondary cell to at least one other secondary cell;
using at least one activated secondary cell configured to the user equipment, measuring at least another non-activated secondary cell having the correspondence relationship with the activated secondary cell, and not measuring at least one non-activated secondary cell having no correspondence relationship with the activated secondary cell;
uploading a measurement report obtained by the measurement;
receiving an activation/deactivation command, wherein the activation/deactivation command is generated when the UE needs to switch to the secondary cell indicated by the measurement report;
deactivating the activated secondary cell and activating the secondary cell indicated by the measurement report in response to the activation/deactivation instruction.
5. The method of claim 4,
and the user equipment only carries out inactive secondary cell measurement on the inactive secondary cell which has the corresponding relation with the active secondary cell.
6. The method of claim 4,
the association includes the correspondence between each secondary cell and all its neighboring secondary cells, where at least two of the at least three secondary cells are not neighboring.
7. The method of claim 4,
the activate/deactivate instruction is implemented by combined L2/L1 signaling.
8. A base station, comprising:
a preparation module, configured to prepare, for a user equipment, an association relationship between at least three secondary cells, where the association relationship includes a correspondence relationship that the user equipment can switch from each secondary cell to at least another secondary cell;
a sending module, configured to send the association relationship to the user equipment, so as to configure at least some of the secondary cells in the at least three secondary cells to the user equipment, so that the user equipment uses at least one activated secondary cell to measure at least another inactivated secondary cell having the correspondence with the activated secondary cell, and does not measure at least one inactivated secondary cell not having the correspondence with the activated secondary cell;
a receiving module, configured to receive a measurement report obtained by the measurement from the user equipment;
a control module, configured to send an activation/deactivation instruction to the user equipment when the user equipment needs to switch to the secondary cell indicated by the measurement report, where the activation/deactivation instruction is used to deactivate the activated secondary cell and activate the secondary cell indicated by the measurement report.
9. The base station of claim 8,
the association includes the correspondence between each secondary cell and all its neighboring secondary cells, where at least two of the at least three secondary cells are not neighboring.
10. A user device, comprising:
a configuration module, configured to receive an association relationship between at least three secondary cells, and execute an instruction to configure at least some of the at least three secondary cells to the user equipment, where the association relationship includes a correspondence relationship that the user equipment can switch from each secondary cell to at least another secondary cell;
a measurement module, configured to use at least one activated secondary cell configured to the user equipment, and to perform measurement on the at least another inactivated secondary cell having the correspondence relationship with the activated secondary cell, and not to perform measurement on at least one inactivated secondary cell having no correspondence relationship with the activated secondary cell;
the uploading module is used for uploading the measurement report obtained by the measurement;
a receiving module, configured to receive an activation/deactivation instruction, where the activation/deactivation instruction is generated when the ue needs to switch to the secondary cell indicated by the measurement report;
a response module, configured to respond to the activation/deactivation instruction to deactivate the activated secondary cell and activate the secondary cell indicated by the measurement report.
11. The UE of claim 10, wherein the measurement module is configured to perform inactive secondary cell measurement only on inactive secondary cells having the correspondence with the activated secondary cells.
12. A base station, comprising:
the system comprises a processor, a transmitter and a receiver, wherein the processor is respectively connected with the transmitter and the receiver;
the processor is configured to prepare, for a user equipment, an association relationship between at least three secondary cells, where the association relationship includes a correspondence relationship that the user equipment can switch from each secondary cell to at least another secondary cell; sending, by the transmitter, the association relationship to the user equipment to configure at least part of the secondary cells of the at least three secondary cells to the user equipment, so that the user equipment uses at least one activated secondary cell to measure at least another inactivated secondary cell having the correspondence relationship with the activated secondary cell and does not measure at least one inactivated secondary cell not having the correspondence relationship with the activated secondary cell; receiving, by the receiver, a measurement report resulting from the measurement from the user equipment; when the user equipment needs to switch to the secondary cell indicated by the measurement report, an activation/deactivation instruction is sent to the user equipment through the transmitter, and the activation/deactivation instruction is used for deactivating the activated secondary cell and activating the secondary cell indicated by the measurement report.
13. A user device, comprising:
the system comprises a processor, a transmitter and a receiver, wherein the processor is respectively connected with the transmitter and the receiver;
the processor is configured to receive, by the receiver, an association relationship between at least three secondary cells, and execute an instruction to configure at least some of the at least three secondary cells to the user equipment, where the association relationship includes a correspondence relationship that the user equipment can switch from each of the secondary cells to at least another one of the secondary cells; using at least one activated secondary cell configured to the user equipment, measuring at least another non-activated secondary cell having the correspondence relationship with the activated secondary cell, and not measuring at least one non-activated secondary cell having no correspondence relationship with the activated secondary cell; uploading, by the transmitter, a measurement report resulting from the measurement; receiving, by the receiver, an activation/deactivation command, where the activation/deactivation command is generated when the UE needs to switch to the secondary cell indicated by the measurement report; deactivating the activated secondary cell and activating the secondary cell indicated by the measurement report in response to the activation/deactivation instruction.
14. The UE of claim 13, wherein the processor is further configured to perform inactive secondary cell measurement only on inactive secondary cells having the correspondence with the activated secondary cells.
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