CN110859001B - Carrier aggregation scheduling method and system - Google Patents
Carrier aggregation scheduling method and system Download PDFInfo
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- CN110859001B CN110859001B CN201810958513.1A CN201810958513A CN110859001B CN 110859001 B CN110859001 B CN 110859001B CN 201810958513 A CN201810958513 A CN 201810958513A CN 110859001 B CN110859001 B CN 110859001B
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- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H04W56/0035—Synchronisation arrangements detecting errors in frequency or phase
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- H04W72/00—Local resource management
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- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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Abstract
The embodiment of the invention provides a carrier aggregation scheduling method and a carrier aggregation scheduling system, wherein whether frame header offset of a main carrier and frame header offset of an auxiliary carrier of carrier aggregation are aligned or not is judged by UE in a carrier aggregation process, the main carrier and the auxiliary carrier are synchronously processed by an eNB when the frame header offset of the main carrier and the frame header offset of the auxiliary carrier are judged and obtained to be misaligned, and the frame header offset of the auxiliary carrier is recovered by the eNB after a carrier aggregation service is finished, so that the interference of a carrier aggregation D-band base station on other non-carrier aggregation base station D-bands is avoided on the premise of ensuring the realization of the carrier aggregation service.
Description
Technical Field
The embodiment of the invention relates to the technical field of mobile communication, in particular to a carrier aggregation scheduling method and a carrier aggregation scheduling system.
Background
Carrier Aggregation (CA) is one of 4G key technologies that aggregates two or more Carrier units (CCs) together to support a larger transmission bandwidth (100 MHz maximum) to double the peak rate for users.
According to the aggregated frequency band division: d1+ D2 frequency band inner carrier aggregation, E1+ E2 frequency band inner carrier aggregation and D + F cross-frequency band carrier aggregation. When the D + F cross-band carrier aggregation is performed, frame headers of the F frequency band and the D frequency band need to be aligned so as to avoid cross time slot interference. A certain TD-SCDMA network device still exists in the existing network, the F frequency band is used for reducing the cross time slot interference with the TD-SCDMA network, and the frame header of the F frequency band needs a certain offset, for example, the offset is 700us; in the D band, in order to avoid cross slot interference between different operators, different operators need to adjust the D band subframe offset configuration at the same time to keep alignment of frame headers of TD-LTE systems of three operators, for example, the offset is 0 second. When D + F cross-band carrier aggregation is performed, if frame header offsets of the D band and the F band are inconsistent, D + F cross-band carrier aggregation cannot be achieved.
At present, a D + F cross-band carrier aggregation base station side adopts a measure of enabling a D frequency band and an F frequency band to be consistent in offset, although the problem of offset of frame headers of the D frequency band and the F frequency band during CA scheduling is solved, frame headers of the D frequency band of the carrier aggregation base station and frame headers of the D frequency band of other non-carrier aggregation base stations are inconsistent, and cross time slot interference is caused.
Disclosure of Invention
Embodiments of the present invention provide a wave aggregation scheduling method and system that overcome the above problems or at least partially solve the above problems.
A first aspect of the present invention provides a carrier aggregation scheduling method, including:
reporting carrier aggregation capability and a measurement report to a base station eNB through a main cell, so that the eNB configures an auxiliary cell according to the carrier aggregation capability and the measurement report;
receiving an RCC connection reset message sent by the eNB, and judging whether frame header offset of a main carrier corresponding to the main cell is aligned with frame header offset of an auxiliary carrier corresponding to the auxiliary cell according to the RCC connection reset message; wherein the RCC connection reset message carries frame header offset information of the primary carrier and frame header offset information of the secondary carrier;
if the frame header offset of the main carrier and the frame header offset of the auxiliary carrier are judged and known to be misaligned, sending Scheduling Request (SR) information to the eNB, so that the eNB can perform synchronous processing on the main carrier and the auxiliary carrier according to the SR information, activate the auxiliary cell, and restore the frame header offset of the auxiliary carrier after the carrier aggregation service is finished; wherein the SR information carries a comparison result between the frame header offset of the primary carrier and the frame header offset of the secondary carrier.
A second aspect of the present invention provides a carrier aggregation scheduling method, including:
receiving carrier aggregation capability and a measurement report reported by User Equipment (UE) through a main cell, and configuring an auxiliary cell for the UE according to the carrier aggregation capability and the measurement report;
generating an RCC connection reset message according to the frame header offset information of the primary carrier corresponding to the primary cell and the frame header offset information of the secondary carrier corresponding to the secondary cell, and sending the RCC connection reset message to the UE, so that the UE generates SR information carrying a comparison result between the frame header offset of the primary carrier and the frame header offset of the secondary carrier when judging and knowing that the frame header offset of the primary carrier and the frame header offset of the secondary carrier are not aligned according to the RCC connection reset message;
and receiving the SR information sent by the UE, synchronously processing the main carrier and the auxiliary carrier according to the SR information, activating the auxiliary cell, and restoring the frame header offset of the auxiliary carrier after the carrier aggregation service is finished.
In a third aspect, an embodiment of the present invention provides a carrier aggregation scheduling system, including:
a reporting module, configured to report, to a base station eNB, carrier aggregation capability and a measurement report through a primary cell, so that the eNB configures a secondary cell according to the carrier aggregation capability and the measurement report;
a judging module, configured to receive an RCC connection reset message sent by the eNB, and judge, according to the RCC connection reset message, whether frame header offset of a primary carrier corresponding to the primary cell and frame header offset of a secondary carrier corresponding to a secondary cell are aligned; wherein the RCC connection reset message carries frame header offset information of the primary carrier and frame header offset information of the secondary carrier;
a first sending module, configured to send, if it is determined that frame header offset of the primary carrier and frame header offset of the secondary carrier are not aligned, SR information to the eNB, so that the eNB performs synchronous processing on the primary carrier and the secondary carrier according to the SR information, activates the secondary cell, and restores frame header offset of the secondary carrier after a carrier aggregation service is finished; wherein the SR information carries a comparison result between the frame header offset of the primary carrier and the frame header offset of the secondary carrier.
A fourth aspect of the present invention provides a carrier aggregation scheduling system, including:
an auxiliary cell acquisition module, configured to receive a carrier aggregation capability and a measurement report that are reported by a user equipment UE through a primary cell, and configure an auxiliary cell for the UE according to the carrier aggregation capability and the measurement report;
a second sending module, configured to generate an RCC connection reset message according to frame header offset information of a primary carrier corresponding to the primary cell and frame header offset information of a secondary carrier corresponding to the secondary cell, and send the RCC connection reset message to the UE, so that the UE generates SR information carrying a comparison result between the frame header offset of the primary carrier and the frame header offset of the secondary carrier when it is determined according to the RCC connection reset message that the frame header offset of the primary carrier and the frame header offset of the secondary carrier are not aligned;
and the synchronous processing module is used for receiving the SR information sent by the UE, carrying out synchronous processing on the main carrier and the auxiliary carrier according to the SR information, activating the auxiliary cell and restoring the frame header offset of the auxiliary carrier after the carrier aggregation service is finished.
Fifth aspect an embodiment of the present invention provides a system, which includes a processor, a communication interface, a memory, and a bus, where the processor and the communication interface complete communication with each other through the bus, and the processor may call a logic instruction in the memory to execute the carrier aggregation scheduling method provided in the first aspect or the second aspect.
A sixth aspect of the present invention provides a non-transitory computer-readable storage medium storing computer instructions for causing a computer to execute the carrier aggregation scheduling method provided in the first or second aspect.
According to the carrier aggregation scheduling method and system provided by the embodiment of the invention, whether the frame header offset of the carrier aggregated main carrier and the frame header offset of the auxiliary carrier are aligned or not is judged by the UE in the carrier aggregation process, the main carrier and the auxiliary carrier are synchronously processed by the eNB when the frame header offset of the main carrier and the frame header offset of the auxiliary carrier are judged and obtained to be misaligned, and the frame header offset of the auxiliary carrier is recovered by the eNB after the carrier aggregation service is finished, so that the interference of a carrier aggregated D-band base station on the D-band of other non-carrier aggregated base stations is avoided on the premise of ensuring the implementation of the carrier aggregation service.
Drawings
Fig. 1 is a flowchart of a UE side of a carrier aggregation scheduling method according to an embodiment of the present invention;
fig. 2 is a flowchart of an eNB side of a carrier aggregation scheduling method according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an eNB performing synchronization processing on a primary carrier and a secondary carrier according to an embodiment of the present invention;
fig. 4 is a block diagram of a structure of a carrier aggregation scheduling system according to an embodiment of the present invention;
fig. 5 is a block diagram of another structure of a carrier aggregation scheduling system according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments, but not all embodiments, of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a flowchart of a UE side according to a carrier aggregation scheduling method provided in an embodiment of the present invention, and as shown in fig. 1, the method includes:
s101, reporting carrier aggregation capability and a measurement report to a base station eNB through a main cell so that the eNB configures an auxiliary cell according to the carrier aggregation capability and the measurement report;
s102, receiving an RCC connection reset message sent by the eNB, and judging whether frame header offset of a main carrier corresponding to the main cell is aligned with frame header offset of a secondary carrier corresponding to the secondary cell according to the RCC connection reset message; wherein the RCC connection reset message carries frame header offset information of the primary carrier and frame header offset information of the secondary carrier;
s103, if the frame header offset of the main carrier and the frame header offset of the auxiliary carrier are judged and known not to be aligned, sending Scheduling Request (SR) information to the eNB so that the eNB can synchronously process the main carrier and the auxiliary carrier according to the SR information, activating the auxiliary cell and restoring the frame header offset of the auxiliary carrier after the carrier aggregation service is finished; wherein the SR information carries a comparison result between the frame header offset of the primary carrier and the frame header offset of the secondary carrier.
In step S101, the UE establishes a connection with the eNB through the primary cell, reports its carrier aggregation capability to the eNB through the primary cell, and sends a measurement report to the eNB through the primary cell. The eNB may configure multiple secondary cells for the UE.
In step S102, the RCC connection reset message sent by the eNB to the UE is added with the frame header offset information of the primary carrier and the frame header offset information of the secondary carrier, and the UE obtains the frame header offset of the primary carrier and the frame header offset of the secondary carrier according to the frame header offset information of the primary carrier and the frame header offset information of the secondary carrier, and then compares whether the frame header offset of the primary carrier and the frame header offset of the secondary carrier are aligned. For example, if the primary carrier is an F-band carrier, the secondary carrier is a D-band carrier, and a TD-SCDMA network device exists in the current network, the F-band carrier will have a certain offset, and the D-band offset is zero, so the UE determines that the frame header offset of the primary carrier and the frame header offset of the secondary carrier are not aligned.
In step S103, if the UE determines that the frame header offset of the primary carrier and the frame header offset of the secondary carrier are not aligned, and the frame header offsets of the primary carrier and the secondary carrier need to be aligned in order to implement carrier aggregation, the UE adds a comparison result between the frame header offset of the primary carrier and the frame header offset of the secondary carrier to SR information sent by the eNB, and the eNB performs synchronization processing on the primary carrier and the secondary carrier according to the comparison result between the two, so that the frame header offset of the primary carrier and the frame header offset of the secondary carrier mutually align the two. Through the above processing, the conditions of carrier aggregation are all satisfied, and the base station activates the secondary cell to complete the carrier aggregation of the UE. After the carrier aggregation service is finished, if the auxiliary carrier is a D-band carrier, because the frame header offset is not zero, in order to avoid the interference of the auxiliary carrier to the D-band of the other non-carrier aggregation base station, the frame header offset is restored to zero again through the base station.
Specifically, the UE determines whether frame header offset of the primary carrier and frame header offset of the secondary carrier are performed, and if the frame header offset of the primary carrier and the frame header offset of the secondary carrier are aligned, it indicates that the frame header offset of the primary carrier and the frame header offset of the secondary carrier are both zero, that is, the primary carrier and the secondary carrier can directly perform carrier aggregation, and the offsets of the primary carrier and the secondary carrier do not need to be adjusted in the execution process of the aggregation service, so that no interference is generated on a D-band of another non-carrier aggregation base station even if the secondary carrier is a D-band carrier after the aggregation service is completed.
The embodiment of the invention provides a carrier aggregation scheduling method, which judges whether frame header offset of a main carrier and frame header offset of an auxiliary carrier of carrier aggregation are aligned or not through UE (user equipment) in a carrier aggregation process, synchronously processes the main carrier and the auxiliary carrier through an eNB (evolved node B) when judging that the frame header offset of the main carrier and the frame header offset of the auxiliary carrier are not aligned, recovers the frame header offset of the auxiliary carrier through the eNB after a carrier aggregation service is finished, and simultaneously avoids interference of a carrier aggregation D-band base station on a D-band of other non-carrier aggregation base stations on the premise of ensuring the realization of the carrier aggregation service.
In the above embodiment, before reporting the carrier aggregation capability and the measurement report to the base station eNB through the primary cell, the method further includes:
and measuring other cells except the main cell in the cell corresponding to the eNB to obtain the measurement report.
Specifically, the UE measures each cell corresponding to the eNB in the primary cell to obtain measurement reports of each cell, and after the UE sends the measurement reports to the eNB, the eNB determines whether each cell can be used as an auxiliary cell of the primary cell for carrier aggregation according to the measurement reports.
In the foregoing embodiment, the determining, according to the RCC connection reset message, whether frame header offset of a primary carrier corresponding to the primary cell and frame header offset of a secondary carrier corresponding to the secondary cell are aligned specifically includes:
calculating a difference value between the frame header offset of the main carrier and the frame header offset of the auxiliary carrier, and judging whether the difference value between the two is zero;
if the difference value between the two is judged and obtained to be zero, the frame header offset of the main carrier and the frame header offset of the auxiliary carrier are aligned; and if the difference value between the two is judged and obtained to be not zero, the frame header offset of the main carrier and the frame header offset of the auxiliary carrier are not aligned.
Fig. 2 is a flowchart of an eNB side of a carrier aggregation scheduling method according to an embodiment of the present invention, and as shown in fig. 2, the method includes:
s201, receiving a carrier aggregation capability and a measurement report reported by User Equipment (UE) through a main cell, and configuring an auxiliary cell for the UE according to the carrier aggregation capability and the measurement report;
s202, generating an RCC connection reset message according to frame header offset information of a main carrier corresponding to the main cell and frame header offset information of an auxiliary carrier corresponding to an auxiliary cell, and sending the RCC connection reset message to the UE, so that the UE generates SR information carrying a comparison result between the frame header offset of the main carrier and the frame header offset of the auxiliary carrier when judging and knowing that the frame header offset of the main carrier and the frame header offset of the auxiliary carrier are not aligned according to the RCC connection reset message;
s203, receiving the SR information sent by the UE, performing synchronous processing on the main carrier and the auxiliary carrier according to the SR information, activating the auxiliary cell, and restoring the frame header offset of the auxiliary carrier after the carrier aggregation service is finished.
In step S201, the eNB determines which cells can be used as secondary cells for carrier aggregation according to the measurement report reported by the UE, and then determines the number of secondary cells according to the carrier aggregation capability reported by the UE, where the eNB may configure a plurality of secondary cells for the UE.
In step S201, the eNB adds frame header offset information of the primary carrier and frame header offset information of the secondary carrier to the RCC connection reset message and sends the information to the UE, and the UE determines whether the frame header offset information of the primary carrier and the frame header offset information of the secondary carrier are aligned according to the frame header offset information of the primary carrier and the frame header offset information of the secondary carrier, and if not, needs to send SR information carrying a comparison result between the frame header offset of the primary carrier and the frame header offset of the secondary carrier to the eNB.
In step S301, the eNB performs synchronization processing on the primary carrier and the secondary carrier according to the SR information sent by the UE, so that frame header offset of the primary carrier and frame header offset of the secondary carrier are mutually aligned. Through the above processing, the carrier aggregation conditions are all satisfied, and the base station activates the secondary cell to complete the carrier aggregation of the UE. After the carrier aggregation service is finished, if the auxiliary carrier is a D-band carrier, because the frame header offset is not zero, in order to avoid the interference of the auxiliary carrier to the D-band of the other non-carrier aggregation base station, the frame header offset is restored to zero again through the base station.
Specifically, the UE determines whether the frame header offset of the primary carrier and the frame header offset of the secondary carrier are performed, and if the frame header offset of the primary carrier and the frame header offset of the secondary carrier are aligned, it indicates that the frame header offset of the primary carrier and the frame header offset of the secondary carrier are both zero, that is, the primary carrier and the secondary carrier can directly perform carrier aggregation, and the offsets of the primary carrier and the secondary carrier do not need to be adjusted in the execution process of the aggregation service, so that even if the secondary carrier is a D-band carrier after the aggregation service is finished, no interference is generated on the D-band carrier of the other non-carrier aggregation base station.
The embodiment of the invention provides a carrier aggregation scheduling method, which judges whether frame header offset of a main carrier and frame header offset of an auxiliary carrier of carrier aggregation are aligned or not through UE (user equipment) in a carrier aggregation process, synchronously processes the main carrier and the auxiliary carrier through an eNB (evolved node B) when judging that the frame header offset of the main carrier and the frame header offset of the auxiliary carrier are not aligned, recovers the frame header offset of the auxiliary carrier through the eNB after a carrier aggregation service is finished, and simultaneously avoids interference of a carrier aggregation D-band base station on a D-band of other non-carrier aggregation base stations on the premise of ensuring the realization of the carrier aggregation service.
In the foregoing embodiment, the performing, according to the SR information, the synchronization processing on the primary carrier and the secondary carrier specifically includes:
and respectively comparing and adjusting the main carrier and the auxiliary carrier with a standard clock, so that the frame header offset of the main carrier and the frame header offset of the auxiliary carrier are aligned with each other.
Specifically, as shown in fig. 3, assuming that C (t) is an ideal synchronous clock source, if there is C (t) = Ci (t) at time i, the clock Ci (t) is said to be exactly offset-free at time t, where the primary carrier signal is denoted by Cp (t) = Ci (t) + Tap, and the secondary carrier signal is denoted by Cs (t) = Ci (t) + TAs. And comparing the clock with a standard clock, and then respectively carrying out synchronous adjustment on Cp (t) and Cs (t), eliminating frame header offset, and synchronously outputting a main carrier signal and an auxiliary carrier signal.
In the above embodiment, the activating the secondary cell further includes:
and if the RLC cache data volume corresponding to the auxiliary cell is judged and acquired to be not smaller than a first preset value and the corresponding RLC first packet time delay is not smaller than a second preset value, activating the auxiliary cell.
The first preset value is max (RLC exit rate × (ActiveBufferDelayThd, activeBufferLenThd), and the second preset value is ActiveBufferDelayThd.
Based on the above embodiments, the interaction process of the carrier aggregation scheduling method of the embodiments of the present invention is described, where one end of the two interacting parties is UE and the other end is eNB, and the execution sequence of the interaction process of the two interacting parties is as follows:
reporting carrier aggregation capability and a measurement report to a base station eNB through a main cell;
receiving carrier aggregation capability and a measurement report reported by User Equipment (UE) through a main cell, and configuring an auxiliary cell for the UE according to the carrier aggregation capability and the measurement report;
generating an RCC connection reset message according to the frame header offset information of the main carrier corresponding to the main cell and the frame header offset information of the auxiliary carrier corresponding to the auxiliary cell, and sending the RCC connection reset message to the UE;
receiving an RCC connection reset message sent by the eNB, and judging whether frame header offset of a main carrier corresponding to the main cell is aligned with frame header offset of an auxiliary carrier corresponding to an auxiliary cell according to the RCC connection reset message;
if the frame header offset of the main carrier and the frame header offset of the auxiliary carrier are judged and known to be not aligned, sending Scheduling Request (SR) information to the eNB;
and receiving the SR information sent by the UE, synchronously processing the main carrier and the auxiliary carrier according to the SR information, activating the auxiliary cell, and restoring the frame header offset of the auxiliary carrier after the carrier aggregation service is finished.
Fig. 4 is a block diagram of a carrier aggregation scheduling system according to an embodiment of the present invention, where the structure includes: a reporting module 401, a determining module 402 and a first sending module 403. Wherein:
the reporting module 401 is configured to report, to a base station eNB, carrier aggregation capability and a measurement report through a primary cell, so that the eNB configures a secondary cell according to the carrier aggregation capability and the measurement report. The determining module 402 is configured to receive an RCC connection reset message sent by the eNB, and determine whether frame header offset of a primary carrier corresponding to the primary cell and frame header offset of a secondary carrier corresponding to the secondary cell are aligned according to the RCC connection reset message; wherein the RCC connection reset message carries frame header offset information of the primary carrier and frame header offset information of the secondary carrier. The first sending module 403 is configured to send, if it is determined that the frame header offset of the primary carrier and the frame header offset of the secondary carrier are not aligned, SR information to the eNB, so that the eNB performs synchronous processing on the primary carrier and the secondary carrier according to the SR information, activates the secondary cell, and restores the frame header offset of the secondary carrier after the carrier aggregation service is finished; wherein the SR information carries a comparison result between the frame header offset of the primary carrier and the frame header offset of the secondary carrier.
According to the carrier aggregation scheduling system provided by the embodiment of the invention, whether the frame header offset of the carrier aggregated main carrier and the frame header offset of the auxiliary carrier are aligned or not is judged by the UE in the carrier aggregation process, the main carrier and the auxiliary carrier are synchronously processed by the eNB when the frame header offset of the main carrier and the frame header offset of the auxiliary carrier are judged and obtained to be misaligned, and the frame header offset of the auxiliary carrier is recovered by the eNB after the carrier aggregation service is finished, so that the interference of a carrier aggregated D-band base station on the D-band of other non-carrier aggregated base stations is avoided on the premise of ensuring the realization of the carrier aggregation service.
In the above embodiment, the reporting module 401 specifically includes:
a measurement submodule, configured to measure other cells except the primary cell in the cell corresponding to the eNB, and obtain the measurement report
In the above embodiment, the determining module 402 specifically includes:
the calculating submodule is used for calculating a difference value between the frame header offset of the main carrier and the frame header offset of the auxiliary carrier and judging whether the difference value between the frame header offset of the main carrier and the frame header offset of the auxiliary carrier is zero or not;
a judging submodule, configured to determine that a difference between the two is zero, and align frame header offset of the primary carrier and frame header offset of the secondary carrier; and if the difference between the two is judged and obtained to be not zero, the frame header offset of the main carrier and the frame header offset of the auxiliary carrier are not aligned.
Fig. 5 is a block diagram of another structure of a carrier aggregation scheduling system according to an embodiment of the present invention, including: an auxiliary cell acquiring module 501, a second sending module 502 and a synchronization processing module 503. Wherein:
the auxiliary cell acquiring module 501 is configured to receive a carrier aggregation capability and a measurement report that are reported by a UE through a primary cell, and configure an auxiliary cell for the UE according to the carrier aggregation capability and the measurement report. The second sending module 502 is configured to generate an RCC connection reset message according to the frame header offset information of the primary carrier corresponding to the primary cell and the frame header offset information of the secondary carrier corresponding to the secondary cell, and send the RCC connection reset message to the UE, so that the UE generates SR information carrying a comparison result between the frame header offset of the primary carrier and the frame header offset of the secondary carrier when it is determined according to the RCC connection reset message that the frame header offset of the primary carrier and the frame header offset of the secondary carrier are not aligned. The synchronization processing module 503 is configured to receive the SR information sent by the UE, perform synchronization processing on the primary carrier and the secondary carrier according to the SR information, activate the secondary cell, and recover frame header offset of the secondary carrier after the carrier aggregation service is finished.
According to the carrier aggregation scheduling system provided by the embodiment of the invention, whether the frame header offset of the carrier aggregated main carrier and the frame header offset of the auxiliary carrier are judged by the UE in the carrier aggregation process, the main carrier and the auxiliary carrier are synchronously processed by the eNB when the frame header offset of the main carrier and the frame header offset of the auxiliary carrier are judged and known to be misaligned, and the frame header offset of the auxiliary carrier is recovered by the eNB after the carrier aggregation service is finished, so that the interference of the carrier aggregated D-band base station on the D-band of other non-carrier aggregated base stations is avoided on the premise of ensuring the realization of the carrier aggregation service.
In the above embodiment, the synchronization processing module 503 specifically includes:
and the synchronous processing sub-module is used for respectively comparing and adjusting the main carrier and the auxiliary carrier with a standard clock, so that the frame header offset of the main carrier and the frame header offset of the auxiliary carrier are mutually aligned.
In the above embodiment, the synchronization processing module 503 further includes:
and the activating submodule is used for activating the auxiliary cell if the RLC cache data volume corresponding to the auxiliary cell is judged and acquired to be not less than a first preset value and the RLC first packet time delay is not less than a second preset value.
Fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention, and as shown in fig. 6, the electronic device includes: a processor 601, a communication Interface 602, a memory 603 and a bus 604, wherein the processor 601, the communication Interface 602 and the memory 603 complete communication with each other through the bus 604. The processor 601 may call logic instructions in the memory 603 to perform methods including, for example: reporting carrier aggregation capability and a measurement report to a base station eNB through a main cell, so that the eNB configures an auxiliary cell according to the carrier aggregation capability and the measurement report; receiving an RCC connection reset message sent by the eNB, and judging whether frame header offset of a main carrier corresponding to the main cell is aligned with frame header offset of an auxiliary carrier corresponding to an auxiliary cell according to the RCC connection reset message; wherein the RCC connection reset message carries frame header offset information of the primary carrier and frame header offset information of the secondary carrier; if the frame header offset of the main carrier and the frame header offset of the auxiliary carrier are judged to be misaligned, scheduling Request (SR) information is sent to the eNB, so that the eNB can perform synchronous processing on the main carrier and the auxiliary carrier according to the SR information, activate the auxiliary cell, and restore the frame header offset of the auxiliary carrier after the carrier aggregation service is finished; wherein the SR information carries a comparison result between the frame header offset of the primary carrier and the frame header offset of the secondary carrier. Or performing a method, for example comprising: receiving carrier aggregation capability and a measurement report reported by User Equipment (UE) through a main cell, and configuring an auxiliary cell for the UE according to the carrier aggregation capability and the measurement report; generating an RCC connection reset message according to the frame header offset information of the primary carrier corresponding to the primary cell and the frame header offset information of the secondary carrier corresponding to the secondary cell, and sending the RCC connection reset message to the UE, so that the UE generates SR information carrying a comparison result between the frame header offset of the primary carrier and the frame header offset of the secondary carrier when judging and knowing that the frame header offset of the primary carrier and the frame header offset of the secondary carrier are not aligned according to the RCC connection reset message; and receiving the SR information sent by the UE, synchronously processing the main carrier and the auxiliary carrier according to the SR information, activating the auxiliary cell, and restoring the frame header offset of the auxiliary carrier after the carrier aggregation service is finished.
The logic instructions in the memory 602 may be implemented in software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as a stand-alone product. Based on such understanding, the technical solution of the present invention or a part thereof which substantially contributes to the prior art 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, or a network device) 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.
Embodiments of the present invention provide a non-transitory computer-readable storage medium storing computer instructions, which cause a computer to execute the method provided by the above method embodiments, for example, including: reporting carrier aggregation capability and a measurement report to a base station eNB through a primary cell, so that the eNB configures a secondary cell according to the carrier aggregation capability and the measurement report; receiving an RCC connection reset message sent by the eNB, and judging whether frame header offset of a main carrier corresponding to the main cell is aligned with frame header offset of an auxiliary carrier corresponding to an auxiliary cell according to the RCC connection reset message; wherein the RCC connection reset message carries frame header offset information of the primary carrier and frame header offset information of the secondary carrier; if the frame header offset of the main carrier and the frame header offset of the auxiliary carrier are judged to be misaligned, scheduling Request (SR) information is sent to the eNB, so that the eNB can perform synchronous processing on the main carrier and the auxiliary carrier according to the SR information, activate the auxiliary cell, and restore the frame header offset of the auxiliary carrier after the carrier aggregation service is finished; wherein the SR information carries a comparison result between the frame header offset of the primary carrier and the frame header offset of the secondary carrier. Or performing a method, for example comprising: receiving carrier aggregation capability and a measurement report reported by User Equipment (UE) through a main cell, and configuring an auxiliary cell for the UE according to the carrier aggregation capability and the measurement report; generating an RCC connection reset message according to the frame header offset information of the primary carrier corresponding to the primary cell and the frame header offset information of the secondary carrier corresponding to the secondary cell, and sending the RCC connection reset message to the UE, so that the UE generates SR information carrying a comparison result between the frame header offset of the primary carrier and the frame header offset of the secondary carrier when judging and knowing that the frame header offset of the primary carrier and the frame header offset of the secondary carrier are not aligned according to the RCC connection reset message; and receiving the SR information sent by the UE, performing synchronous processing on the main carrier and the auxiliary carrier according to the SR information, activating the auxiliary cell, and restoring the frame header offset of the auxiliary carrier after the carrier aggregation service is finished.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
The above-described embodiments of the communication device and the like are merely illustrative, where 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 multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods of the various embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A carrier aggregation scheduling method is characterized by comprising the following steps:
reporting carrier aggregation capability and a measurement report to a base station eNB through a main cell, so that the eNB configures an auxiliary cell according to the carrier aggregation capability and the measurement report;
receiving an RCC connection reset message sent by the eNB, and judging whether frame header offset of a main carrier corresponding to the main cell is aligned with frame header offset of an auxiliary carrier corresponding to the auxiliary cell according to the RCC connection reset message; wherein, the RCC connection reset message carries the frame header offset information of the primary carrier and the frame header offset information of the secondary carrier;
if the frame header offset of the main carrier and the frame header offset of the auxiliary carrier are judged and known to be misaligned, sending Scheduling Request (SR) information to the eNB, so that the eNB can perform synchronous processing on the main carrier and the auxiliary carrier according to the SR information, activate the auxiliary cell, and restore the frame header offset of the auxiliary carrier after the carrier aggregation service is finished; wherein the SR information carries a comparison result between the frame header offset of the primary carrier and the frame header offset of the secondary carrier.
2. The method of claim 1, wherein before the reporting the carrier aggregation capability and the measurement report to the base station eNB through the primary cell, further comprising:
and measuring other cells except the main cell in the cell corresponding to the eNB to obtain the measurement report.
3. The method according to claim 1, wherein the determining, according to the RCC connection reset message, whether the frame header offset of the primary carrier corresponding to the primary cell and the frame header offset of the secondary carrier corresponding to the secondary cell are aligned includes:
calculating a difference value between the frame header offset of the main carrier and the frame header offset of the auxiliary carrier, and judging whether the difference value between the two is zero;
if the difference between the two is judged and obtained to be zero, aligning the frame header offset of the main carrier with the frame header offset of the auxiliary carrier; and if the difference between the two is judged and obtained to be not zero, the frame header offset of the main carrier and the frame header offset of the auxiliary carrier are not aligned.
4. A carrier aggregation scheduling method is characterized by comprising the following steps:
receiving carrier aggregation capability and a measurement report reported by User Equipment (UE) through a main cell, and configuring an auxiliary cell for the UE according to the carrier aggregation capability and the measurement report;
generating an RCC connection reset message according to the frame header offset information of the primary carrier corresponding to the primary cell and the frame header offset information of the secondary carrier corresponding to the secondary cell, and sending the RCC connection reset message to the UE, so that the UE generates SR information carrying a comparison result between the frame header offset of the primary carrier and the frame header offset of the secondary carrier when judging and knowing that the frame header offset of the primary carrier and the frame header offset of the secondary carrier are not aligned according to the RCC connection reset message;
and receiving the SR information sent by the UE, performing synchronous processing on the main carrier and the auxiliary carrier according to the SR information, activating the auxiliary cell, and restoring the frame header offset of the auxiliary carrier after the carrier aggregation service is finished.
5. The method according to claim 4, wherein the synchronizing the primary carrier and the secondary carrier according to the SR information specifically includes:
and respectively comparing and adjusting the main carrier and the auxiliary carrier with a standard clock, so that the frame header offset of the main carrier and the frame header offset of the auxiliary carrier are aligned with each other.
6. The method of claim 4, wherein the activating the secondary cell further comprises:
and if the RLC cache data volume corresponding to the auxiliary cell is judged and acquired to be not smaller than a first preset value and the corresponding RLC first packet time delay is not smaller than a second preset value, activating the auxiliary cell.
7. A carrier aggregation scheduling system, comprising:
a reporting module, configured to report, to a base station eNB, carrier aggregation capability and a measurement report through a primary cell, so that the eNB configures a secondary cell according to the carrier aggregation capability and the measurement report;
a determining module, configured to receive an RCC connection reset message sent by the eNB, and determine whether frame header offset of a primary carrier corresponding to the primary cell and frame header offset of a secondary carrier corresponding to the secondary cell are aligned according to the RCC connection reset message; wherein the RCC connection reset message carries frame header offset information of the primary carrier and frame header offset information of the secondary carrier;
a first sending module, configured to send, if it is determined that frame header offset of the primary carrier and frame header offset of the secondary carrier are not aligned, SR information to the eNB, so that the eNB performs synchronous processing on the primary carrier and the secondary carrier according to the SR information, activates the secondary cell, and restores frame header offset of the secondary carrier after a carrier aggregation service is finished; wherein the SR information carries a comparison result between the frame header offset of the primary carrier and the frame header offset of the secondary carrier.
8. A carrier aggregation scheduling system, comprising:
an auxiliary cell acquisition module, configured to receive a carrier aggregation capability and a measurement report that are reported by a user equipment UE through a primary cell, and configure an auxiliary cell for the UE according to the carrier aggregation capability and the measurement report;
a second sending module, configured to generate an RCC connection reset message according to frame header offset information of a primary carrier corresponding to the primary cell and frame header offset information of a secondary carrier corresponding to the secondary cell, and send the RCC connection reset message to the UE, so that the UE generates SR information carrying a comparison result between the frame header offset of the primary carrier and the frame header offset of the secondary carrier when it is determined according to the RCC connection reset message that the frame header offset of the primary carrier and the frame header offset of the secondary carrier are not aligned;
and the synchronous processing module is used for receiving the SR information sent by the UE, carrying out synchronous processing on the main carrier and the auxiliary carrier according to the SR information, activating the auxiliary cell and restoring the frame header offset of the auxiliary carrier after the carrier aggregation service is finished.
9. An electronic device, comprising a processor, a communication interface, a memory and a bus, wherein the processor, the communication interface and the memory communicate with each other via the bus, and the processor can call logic instructions in the memory to execute the carrier aggregation scheduling method according to any one of claims 1 to 6.
10. A non-transitory computer-readable storage medium storing computer instructions for causing a computer to perform the carrier aggregation scheduling method according to any one of claims 1 to 6.
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| WO2016165437A1 (en) * | 2015-08-12 | 2016-10-20 | 中兴通讯股份有限公司 | Method for implementing coordinated multipoint (comp) downlink transmission between base stations, and corresponding base stations |
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| US9980159B2 (en) * | 2014-09-26 | 2018-05-22 | Mediatek Inc. | RRC re-establishment on secondary eNodeB for dual connectivity |
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| CN102685897A (en) * | 2011-03-09 | 2012-09-19 | 中兴通讯股份有限公司 | Sequence configuration method and device in carrier aggregation system |
| GB201204380D0 (en) * | 2012-03-13 | 2012-04-25 | Renesas Mobile Corp | Apparatus,methods and computer programs for secondary cell discovery for carries aggregation |
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