CN105764144B - Signaling processing method and system - Google Patents
Signaling processing method and system Download PDFInfo
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- CN105764144B CN105764144B CN201610069127.8A CN201610069127A CN105764144B CN 105764144 B CN105764144 B CN 105764144B CN 201610069127 A CN201610069127 A CN 201610069127A CN 105764144 B CN105764144 B CN 105764144B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- 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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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
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- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
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Abstract
The embodiment of the invention provides a signaling processing method and a system, which are applied to a base station in an enhanced carrier aggregation system, wherein the base station is connected to a terminal, and the method comprises the following steps: receiving a downlink service request of a terminal and determining a downlink scheduling distribution signaling; determining the size, position and modulation coding mode of uplink feedback resources for feeding back service data based on the number of scheduled member carriers of the terminal and the physical uplink control channel state; determining an indication signaling of the uplink feedback resource based on the size, the position and the modulation coding mode of the uplink feedback resource; adding an indication signaling of an uplink feedback resource to the tail part of a downlink scheduling distribution signaling; and sending the mixed signaling to the terminal through a physical downlink control channel, and sending the service data corresponding to the downlink service request to the terminal through a physical downlink shared channel. By applying the embodiment of the invention, the cost of the physical downlink control channel resource is reduced, and the problem of limited physical downlink control channel resource is avoided.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a signaling processing method and system.
Background
With the proposed LTE Carrier Aggregation Enhancement nodes 5Carriers, the number of aggregated component Carriers is increased from 5 at most to 32 at most, which can further increase the uplink and downlink transmission rate. However, certain problems are also introduced, such as: when the number of aggregated member carriers is large, since the data transmitted on each member carrier needs to be subjected to uplink feedback, only one PRB resource allocated for uplink feedback in the prior art cannot meet the feedback requirement; and since the number of scheduled component carriers of the terminal may change dynamically, the base station needs to use additional signaling to dynamically inform the terminal of the information of the uplink feedback resource. Therefore, a large amount of signaling indicating the uplink feedback resource needs to be transmitted by the physical downlink control channel resource, that is, the overhead of the physical downlink control channel resource is greatly increased, and even the situation that the physical downlink control channel resource is limited may occur.
Therefore, it is necessary to provide a new signaling processing method to reduce the overhead of the physical downlink control channel resources, thereby avoiding the problem of limited physical downlink control channel resources.
Disclosure of Invention
The embodiments of the present invention provide a signaling processing method and system, so as to reduce the overhead of physical downlink control channel resources, thereby avoiding the problem of limited physical downlink control channel resources. The specific technical scheme is as follows:
in a first aspect, an embodiment of the present invention provides a signaling processing method, which is applied to a base station in an enhanced carrier aggregation system, where the base station is connected to a terminal, and the method includes:
receiving a downlink service request of the terminal, and determining a downlink scheduling distribution signaling, wherein the downlink service request is used for requesting service data, and the downlink scheduling distribution signaling is used for indicating scheduling distribution of the service data corresponding to the downlink service request;
determining the size, the position and the modulation coding mode of an uplink feedback resource for feeding back the service data based on the number of the scheduled member carriers of the terminal and the state of a physical uplink control channel;
determining an indication signaling of an uplink feedback resource based on the size, the position and the modulation coding mode of the uplink feedback resource, wherein the indication signaling of the uplink feedback resource is used for informing the terminal of the size, the position and the modulation coding mode of the uplink feedback resource for feeding back the service data;
adding the indication signaling of the uplink feedback resource to the tail part of the downlink scheduling distribution signaling to obtain a mixed signaling;
and sending the mixed signaling to the terminal through a physical downlink control channel, and sending the service data corresponding to the downlink service request to the terminal through a physical downlink shared channel, so that the terminal extracts a downlink scheduling distribution signaling from the mixed signaling to indicate the scheduling distribution of the service data, and extracts an indication signaling of the uplink feedback resource from the mixed signaling to determine the size, the position and the modulation coding mode of the uplink feedback resource for feeding back the service data.
Optionally, the determining, based on the number of scheduled component carriers of the terminal and a physical uplink control channel state, a size, a position, and a modulation and coding scheme of an uplink feedback resource for feeding back the service data includes:
calculating the bit information size of the confirmation information of the service data required to be fed back by the terminal based on the number of the scheduled member carriers of the terminal;
and determining the size, the position and the modulation coding mode of an uplink feedback resource for feeding back the service data based on the bit information size and the physical uplink control channel state of the acknowledgement information of the service data required to be fed back by the terminal.
Optionally, in an implementation manner, the determining an indication signaling of an uplink feedback resource based on the size, the position, and the modulation and coding scheme of the uplink feedback resource includes:
and acquiring bit information corresponding to the size, the position and the modulation coding mode of the uplink feedback resource, and setting the bit information corresponding to the size, the position and the modulation coding mode of the uplink feedback resource as an indication signaling of the uplink feedback resource.
Optionally, in another implementation manner, the determining an indication signaling of an uplink feedback resource based on the size, the position, and the modulation and coding scheme of the uplink feedback resource includes:
determining a unique uplink feedback resource parameter set based on the size, the position and the modulation coding mode of the uplink feedback resource, wherein the uplink feedback resource parameter set comprises the size, the position and the modulation coding mode of the uplink feedback resource, and the uplink feedback resource parameter set only corresponds to an index identifier;
and setting the index identifier corresponding to the uplink feedback resource parameter set determined by the size, the position and the modulation coding mode of the uplink feedback resource as an indication signaling of the uplink feedback resource.
Optionally, according to a preset mapping table, an index identifier uniquely corresponding to the uplink feedback resource parameter set is determined.
In a second aspect, an embodiment of the present invention provides a signaling processing system, which is applied to a base station in an enhanced carrier aggregation system, where the base station is connected to a terminal, and the system includes:
a receiving unit, configured to receive a downlink service request of the terminal, and determine a downlink scheduling assignment signaling, where the downlink service request is used to request service data, and the downlink scheduling assignment signaling is used to indicate scheduling assignment of service data corresponding to the downlink service request;
an uplink feedback resource parameter determining unit, configured to determine, based on the number of scheduled component carriers of the terminal and a physical uplink control channel state, a size, a position, and a modulation and coding scheme of an uplink feedback resource for feeding back the service data;
an indication signaling determination unit of the uplink feedback resource, configured to determine an indication signaling of the uplink feedback resource based on the size, the position, and the modulation and coding scheme of the uplink feedback resource determined by the uplink feedback resource parameter determination unit, where the indication signaling of the uplink feedback resource is used to inform the terminal of the size, the position, and the modulation and coding scheme of the uplink feedback resource for feeding back the service data;
an adding unit, configured to add the indication signaling of the uplink feedback resource determined by the indication signaling determination unit of the uplink feedback resource to the tail of the downlink scheduling assignment signaling to obtain a hybrid signaling;
and the mixed signaling sending unit is used for sending the mixed signaling to the terminal through a physical downlink control channel, sending the service data corresponding to the downlink service request to the terminal through a physical downlink shared channel, so that the terminal extracts downlink scheduling distribution signaling from the mixed signaling to indicate the scheduling distribution of the service data, and extracts the indication signaling of the uplink feedback resource from the mixed signaling to determine the size, the position and the modulation coding mode of the uplink feedback resource for feeding back the service data.
Optionally, the uplink feedback resource parameter determining unit includes:
a calculating subunit, configured to calculate, based on the number of scheduled component carriers of the terminal, a bit information size of acknowledgment information that the terminal needs to feed back the service data;
and the uplink feedback resource parameter determining subunit is configured to determine, based on the bit information size and the physical uplink control channel state of the acknowledgment information that the terminal needs to feed back the service data, the size, the position, and the modulation and coding scheme of the uplink feedback resource used for feeding back the service data.
Optionally, the unit for determining an indication signaling of the uplink feedback resource includes:
and the setting subunit is used for acquiring bit information corresponding to the size, the position and the modulation coding mode of the uplink feedback resource respectively, and setting the bit information corresponding to the size, the position and the modulation coding mode of the uplink feedback resource as an indication signaling of the uplink feedback resource.
Optionally, the unit for determining an indication signaling of the uplink feedback resource includes:
an uplink feedback resource parameter set determining subunit, configured to determine a unique uplink feedback resource parameter set based on the size, the position, and the modulation and coding scheme of the uplink feedback resource, where the uplink feedback resource parameter set includes the size, the position, and the modulation and coding scheme of the uplink feedback resource, and the uplink feedback resource parameter set uniquely corresponds to an index identifier;
and the determining subunit is configured to set an index identifier corresponding to the uplink feedback resource parameter set determined by the size, the position, and the modulation and coding mode of the uplink feedback resource as an indication signaling of the uplink feedback resource.
Optionally, according to a preset mapping table, an index identifier uniquely corresponding to the uplink feedback resource parameter set is determined.
The signaling processing method and system provided by the embodiment of the invention determine the size, position and modulation coding mode of the uplink feedback resource of the required feedback service data through the number of the scheduled member carriers of the terminal and the state of the physical uplink control channel, realize the dynamic adjustment of the size, position and modulation coding mode of the required uplink feedback resource, improve the utilization rate of the uplink feedback resource, add the indication signaling of the uplink feedback resource at the tail of the downlink scheduling distribution signaling, realize the simultaneous transmission of the indication signaling of the uplink feedback resource and the downlink scheduling distribution signaling in the same physical downlink control channel, i.e. the indication signaling of the uplink feedback resource is not required to be transmitted by using a separate physical downlink control channel, particularly in an enhanced carrier aggregation system, when the number of the scheduled member carriers of the terminal is more, the overhead of the physical downlink control channel can be greatly reduced, thereby avoiding the problem of limited physical downlink control channel resources. Of course, it is not necessary for any product or method of practicing the invention to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flowchart of a signaling processing method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a signaling processing system according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a signaling processing method in the prior art;
fig. 4 is a schematic diagram illustrating a signaling processing method according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
In the following, the terms referred to in the examples are explained first:
CA: carrier Aggregation, Carrier Aggregation;
LTE: long Term Evolution, Long Term Evolution;
LTE eCA: carrier Aggregation Enhancement approach 5Carriers, enhanced Carrier Aggregation of more than 5 Carriers;
HARQ: hybrid Automatic Repeat reQuest;
DCI: downlink Control Information, Downlink Control Information;
PRB: physical Resource Block, Physical Resource Block;
ACK/NACK: confirm/not confirm the order;
PUCCH: physical Uplink Control Channel, Physical Uplink Control Channel;
MCS: modulation And Coding Scheme, Modulation And Coding Scheme.
In order to solve the problem of the prior art, embodiments of the present invention provide a signaling processing method and system.
In a first aspect, an embodiment of the present invention provides a signaling processing method, which is applied to a base station in an enhanced carrier aggregation system, where the base station is connected to a terminal, and as shown in fig. 1, the method may include:
s101: receiving a downlink service request of the terminal, and determining a downlink scheduling distribution signaling, wherein the downlink service request is used for requesting service data, and the downlink scheduling distribution signaling is used for indicating scheduling distribution of the service data corresponding to the downlink service request;
in the enhanced carrier aggregation system, a terminal sends a downlink service request to a base station to request service data, and the base station receives the downlink service request and determines a downlink scheduling assignment signaling for indicating the service data scheduling assignment.
It should be emphasized that the downlink scheduling assignment signaling may be transmitted in a physical downlink control channel, and the downlink scheduling assignment signaling includes, but is not limited to, DCI1 and DCI2, and DCI1 and DCI2 are used to provide an indication for scheduling assignment of service data transmitted in downlink PDSCH resources, and DCI1 and DCI2 belong to the prior art, and are not described herein again. In addition, the specific implementation manner for determining the downlink scheduling assignment signaling may be implemented by using the prior art, which is not described herein again.
S102: determining the size, position and modulation coding mode of uplink feedback resources for feeding back the service data based on the number of scheduled member carriers of the terminal and the physical uplink control channel state;
the number of the member carriers in the enhanced carrier aggregation system can be increased to 32, the number of the scheduled member carriers of the terminal can be determined according to the carrier bandwidth, and the physical uplink channel state is obtained; after acquiring the number of the scheduled component carriers and the physical uplink channel state of the terminal, the size, the position, and the modulation and coding mode of the uplink feedback resource for feeding back the service data may be determined.
S103: determining an indication signaling of the uplink feedback resource based on the size, the position and the modulation coding mode of the uplink feedback resource, wherein the indication signaling of the uplink feedback resource is used for informing the terminal of the size, the position and the modulation coding mode of the uplink feedback resource for feeding back the service data;
the indication signaling of the uplink feedback resource is determined by the number of the member carriers and the physical uplink channel state, and then the amount of information to be fed back can be determined according to the number of the member carriers according to the specific system in which the indication signaling is located, such as a frequency division multiplexing system, and the uplink feedback resource required by the confirmation information of the service data corresponding to the downlink service request is correspondingly adjusted.
It should be noted that, in uplink feedback information transmission in the LTE system, the PUCCH is used to transmit feedback information corresponding to service data. And the feedback information may include, but is not limited to, hybrid automatic repeat request HARQ.
S104: adding the indication signaling of the uplink feedback resource to the tail part of the downlink scheduling distribution signaling to obtain a mixed signaling;
the method can realize that the indication signaling of the uplink feedback resource and the downlink scheduling allocation signaling are simultaneously transmitted in one physical downlink control channel by adding the indication signaling of the uplink feedback resource to the tail part of the corresponding downlink scheduling allocation signaling, namely, when a terminal is scheduled with a plurality of member carriers, the physical downlink control channel resource can be greatly saved, and the situation that the physical downlink control channel resource is limited is avoided.
S105: and sending the mixed signaling to the terminal through a physical downlink control channel, and sending service data corresponding to the downlink service request to the terminal through a physical downlink shared channel, so that the terminal extracts a downlink scheduling allocation signaling from the mixed signaling to indicate scheduling allocation of the service data, and extracts an indication signaling of the uplink feedback resource from the mixed signaling to determine the size, the position and the modulation coding mode of the uplink feedback resource for feeding back the service data.
The terminal receives the mixed signaling, extracts downlink scheduling allocation signaling and indication signaling of uplink feedback resources from the mixed signaling respectively, so as to use the downlink scheduling allocation signaling to indicate scheduling allocation of the service data, and use the indication signaling of the uplink feedback resources to indicate physical resources and transmission formats required by uplink feedback, that is, to indicate the size, position and modulation coding mode of the uplink feedback resources required by the uplink feedback.
In the embodiment of the invention, the size, the position and the modulation coding mode of the uplink feedback resource of the required feedback service data are determined by the number of the scheduled component carriers of the terminal and the state of the physical uplink control channel, the size, the position and the modulation coding mode of the required uplink feedback resource are dynamically adjusted, the utilization rate of the uplink feedback resource is improved, the indication signaling of the uplink feedback resource is added at the tail part of the downlink scheduling distribution signaling, the indication signaling of the uplink feedback resource and the downlink scheduling distribution signaling are simultaneously sent in the same physical downlink control channel, namely, the indication signaling of the uplink feedback resource is not required to be sent by using a separate physical downlink control channel, particularly in an enhanced carrier aggregation system, when the number of the scheduled component carriers of the terminal is more, the overhead of the physical downlink control channel can be greatly reduced, thereby avoiding the problem of limited physical downlink control channel resources.
Further, the determining the size, the position, and the modulation and coding scheme of the uplink feedback resource for feeding back the service data based on the number of scheduled component carriers of the terminal and the physical uplink control channel status may include:
calculating the bit information size of the confirmation information of the service data which needs to be fed back by the terminal based on the number of the scheduled member carriers of the terminal; and determining the size, the position and the modulation coding mode of an uplink feedback resource for feeding back the service data based on the bit information size and the physical uplink control channel state of the acknowledgement information of the service data required to be fed back by the terminal.
It can be understood that, in this implementation manner, after the number of the scheduled component carriers of the terminal is obtained, the bit information size of the acknowledgment information for feeding back the service data may be determined according to the codeword to be transmitted on each component carrier; the size of the bit information, the physical uplink control channel state and other factors can be comprehensively considered, and the size, the position and the modulation coding mode of the required physical resource block can be determined. That is to say, the implementation method can dynamically determine the size of the required uplink feedback resource based on the number of the member carriers and the physical uplink control channel state, and avoids the problem that the physical resource block is not fully utilized by adopting an allocation method for allocating the size of the fixed physical resource block in the prior art; and the modulation coding mode can be adjusted according to the physical uplink control channel state.
Further, in a specific implementation manner of the embodiment of the present invention, the determining the indication signaling of the uplink feedback resource based on the size, the position, and the modulation and coding scheme of the uplink feedback resource may include:
and acquiring bit information corresponding to the size, the position and the modulation coding mode of the uplink feedback resource, and setting the bit information corresponding to the size, the position and the modulation coding mode of the uplink feedback resource as an indication signaling of the uplink feedback resource.
It can be understood that, in this implementation manner, after the bit information corresponding to the size, the position, and the modulation and coding scheme of the uplink feedback resource is obtained, the bit information corresponding to the size, the position, and the modulation and coding scheme of the uplink feedback resource is directly used as the indication signaling of the uplink feedback resource, so that the base station can directly inform the terminal of the size, the position, and the modulation and coding scheme of the feedback resource of the uplink feedback resource required for feeding back the service data corresponding to the downlink service request, so that the terminal can feed back the service data.
Further, in another specific implementation manner of the embodiment of the present invention, the determining the indication signaling of the uplink feedback resource based on the size, the position, and the modulation and coding scheme of the uplink feedback resource may include:
determining a unique uplink feedback resource parameter set based on the size, the position and the modulation coding mode of the uplink feedback resource, wherein the uplink feedback resource parameter set comprises the size, the position and the modulation coding mode of the uplink feedback resource, and the uplink feedback resource parameter set uniquely corresponds to an index identifier; and setting the index identifier corresponding to the uplink feedback resource parameter set determined by the size, the position and the modulation coding mode of the uplink feedback resource as an indication signaling of the uplink feedback resource.
It is to be understood that, in this implementation manner, the uplink feedback resource parameter set may be determined, and the uplink feedback resource parameter set includes: the uplink feedback resource parameter set only corresponds to one index identifier, and the index identifier can be set as an indication signaling of the uplink feedback resource, that is, only the index identifier needs to be transmitted, without transmitting a large amount of bit information respectively corresponding to the size, the position and the modulation coding mode of the uplink feedback resource, so that the transmission quantity of the downlink signaling is reduced, and the physical downlink control channel resource is saved.
Furthermore, the index identifier uniquely corresponding to the uplink feedback resource parameter set can be determined according to a preset corresponding table.
It can be understood that, in this implementation manner, the preset correspondence table may determine a correspondence between the uplink feedback resource parameter set and the index identifier, and the base station only needs to send one index identifier to the terminal, which reduces the transmission amount of the downlink signaling and saves the physical downlink control channel resource, and after receiving the index identifier, the terminal retrieves the corresponding uplink feedback resource parameter set according to the preset correspondence table, so as to obtain the uplink feedback resource parameter set for feeding back the uplink resource.
The signaling processing method according to the embodiment of the present invention is described below with reference to fig. 3 and 4.
Fig. 3 shows a signaling processor in the prior art, and as shown in fig. 3, DCI0/DCI4 for uplink scheduling is transmitted on one PDCCH, and DCI1/DCI2 for downlink scheduling is transmitted on another PDCCH. In the LTE eCA system, since the PUCCH needs to be dynamically configured by the base station, and a control signaling needs to be additionally sent on the PDCCH to indicate few uplink PRB resources, so as to transmit uplink HARQ bit information on the few uplink PRB resources, which will increase PDCCH overhead and may cause PDCCH resource limitation.
It should be emphasized that DL in fig. 3 represents a downlink subframe, and the downlink subframe includes downlink traffic data and a downlink scheduling assignment signaling for indicating scheduling assignment of the downlink traffic data; the UL indicates an uplink subframe, and the uplink subframe includes HARQ bit information for feeding back the service data.
Fig. 4 shows a signaling processing method according to an embodiment of the present invention, and as shown in fig. 4, joint scheduling of downlink scheduling assignment signaling DCI1/DCI2 and an indication signaling ARI of an uplink feedback resource is implemented in one PDCCH, that is, the downlink scheduling assignment signaling carries indication information of the uplink feedback resource related to service data corresponding to the current downlink service request. The base station does not need to adopt a separate PDCCH to transmit the indication information of the uplink feedback resource to indicate the resource required by the uplink feedback, so as to reduce the overhead of PDCCH control signaling and prevent the PDCCH from being limited, wherein it can be understood that the ARI is a symbol used for indicating the indication signaling of the uplink feedback resource.
It should be emphasized that the signaling processing method provided by the embodiment of the present invention as shown in fig. 4 may include the following two specific implementation manners:
the implementation mode is as follows: directly using bit information respectively corresponding to the size, the position and the modulation coding mode of the uplink feedback resource as an indication signaling ARI of the uplink feedback resource;
the implementation mode two is as follows: the method comprises the steps of uniquely determining an uplink feedback resource parameter set for the size, the position and the modulation coding mode of an uplink feedback resource of the uplink feedback resource required by service data requested by the service request, setting a uniquely corresponding index identifier for the uplink feedback resource parameter set, and setting the identifier index as an indication signaling ARI of the uplink feedback resource, wherein the uplink feedback parameter set corresponding to the ARI can comprise parameters such as PRB position, PRB number and MCS.
Corresponding to the foregoing method embodiment, an embodiment of the present invention further provides a signaling processing system, which is applied to a base station in an enhanced carrier aggregation system, where the base station is connected to a terminal, and as shown in fig. 2, the system may include: a receiving unit 201, an uplink feedback resource parameter determining unit 202, an indication signaling determining unit 203 of uplink feedback resources, an adding unit 204 and a mixed signaling sending unit 205;
the receiving unit 201 is configured to receive a downlink service request of the terminal, and determine a downlink scheduling assignment signaling, where the downlink service request is used to request service data, and the downlink scheduling assignment signaling is used to indicate scheduling assignment of service data corresponding to the downlink service request;
the uplink feedback resource parameter determining unit 202 is configured to determine, based on the number of scheduled component carriers of the terminal and a physical uplink control channel state, a size, a position, and a modulation and coding scheme of an uplink feedback resource for feeding back the service data;
the uplink feedback resource indication signaling determining unit 203 is configured to determine an indication signaling of an uplink feedback resource based on the size, the position, and the modulation and coding scheme of the uplink feedback resource determined by the uplink feedback resource parameter determining unit 202, where the uplink feedback resource indication signaling is used to inform the terminal of the size, the position, and the modulation and coding scheme of the uplink feedback resource for feeding back the service data;
the appending unit 204 is configured to append the indication signaling of the uplink feedback resource determined by the indication signaling determining unit 203 of the uplink feedback resource to the tail of the downlink scheduling assignment signaling to obtain a hybrid signaling;
the mixed signaling sending unit 205 is configured to send the mixed signaling to the terminal through a physical downlink control channel, and send service data corresponding to the downlink service request to the terminal through a physical downlink shared channel, so that the terminal extracts a downlink scheduling assignment signaling from the mixed signaling to indicate scheduling assignment of the service data, and extracts an indication signaling of the uplink feedback resource from the mixed signaling to determine a size, a position, and a modulation and coding manner of the uplink feedback resource for feeding back the service data.
In the embodiment of the invention, the size, the position and the modulation coding mode of the uplink feedback resource of the required feedback service data are determined by the number of the scheduled component carriers of the terminal and the state of the physical uplink control channel, the size, the position and the modulation coding mode of the required uplink feedback resource are dynamically adjusted, the utilization rate of the uplink feedback resource is improved, the indication signaling of the uplink feedback resource is added at the tail part of the downlink scheduling distribution signaling, the indication signaling of the uplink feedback resource and the downlink scheduling distribution signaling are simultaneously sent in the same physical downlink control channel, namely, the indication signaling of the uplink feedback resource is not required to be sent by using a separate physical downlink control channel, particularly in an enhanced carrier aggregation system, when the number of the scheduled component carriers of the terminal is more, the overhead of the physical downlink control channel can be greatly reduced, thereby avoiding the problem of limited physical downlink control channel resources.
Further, the uplink feedback resource parameter determining unit 202 may include: a calculating subunit and an uplink feedback resource parameter determining subunit;
the calculating subunit is configured to calculate, based on the number of scheduled component carriers of the terminal, a bit information size of acknowledgment information that the terminal needs to feed back the service data;
the uplink feedback resource parameter determining subunit is configured to determine, based on the size of the bit information of the acknowledgment information that the terminal needs to feed back the service data and the physical uplink control channel state, the size, the position, and the modulation and coding scheme of the uplink feedback resource used for feeding back the service data.
Further, in a specific implementation manner of the embodiment of the present invention, the unit 203 for determining an indication signaling of an uplink feedback resource may include: setting a subunit;
the setting subunit is configured to acquire bit information corresponding to the size, the position, and the modulation and coding scheme of the uplink feedback resource, and set the bit information corresponding to the size, the position, and the modulation and coding scheme of the uplink feedback resource as an indication signaling of the uplink feedback resource.
Further, in another specific implementation manner of the embodiment of the present invention, the unit 203 for determining an indication signaling of an uplink feedback resource may include: an uplink feedback resource parameter set determining subunit and a determining subunit;
the uplink feedback resource parameter set determining subunit is configured to determine a unique uplink feedback resource parameter set based on the size, the position, and the modulation and coding scheme of the uplink feedback resource, where the uplink feedback resource parameter set includes the size, the position, and the modulation and coding scheme of the uplink feedback resource, and the uplink feedback resource parameter set uniquely corresponds to an index identifier;
the determining subunit is configured to set an index identifier corresponding to the uplink feedback resource parameter set determined by the size, the position, and the modulation and coding scheme of the uplink feedback resource as an indication signaling of the uplink feedback resource.
Furthermore, the index identifier uniquely corresponding to the uplink feedback resource parameter set can be determined according to a preset corresponding table.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. A signaling processing method applied to a base station in an enhanced carrier aggregation system, the base station being connected to a terminal, the method comprising:
receiving a downlink service request of the terminal, and determining a downlink scheduling distribution signaling, wherein the downlink service request is used for requesting service data, and the downlink scheduling distribution signaling is used for indicating scheduling distribution of the service data corresponding to the downlink service request;
determining the size, the position and the modulation coding mode of an uplink feedback resource for feeding back the service data based on the number of the scheduled member carriers of the terminal and the state of a physical uplink control channel; the number of the member carriers in the enhanced carrier aggregation system is less than or equal to 32;
determining an indication signaling of an uplink feedback resource based on the size, the position and the modulation coding mode of the uplink feedback resource, wherein the indication signaling of the uplink feedback resource is used for informing the terminal of the size, the position and the modulation coding mode of the uplink feedback resource for feeding back the service data;
adding the indication signaling of the uplink feedback resource to the tail part of the downlink scheduling distribution signaling to obtain a mixed signaling;
and sending the mixed signaling to the terminal through a physical downlink control channel, and sending the service data corresponding to the downlink service request to the terminal through a physical downlink shared channel, so that the terminal extracts a downlink scheduling distribution signaling from the mixed signaling to indicate the scheduling distribution of the service data, and extracts an indication signaling of the uplink feedback resource from the mixed signaling to determine the size, the position and the modulation coding mode of the uplink feedback resource for feeding back the service data.
2. The method of claim 1, wherein the determining the size, the position and the modulation and coding scheme of the uplink feedback resource for feeding back the traffic data based on the number of scheduled component carriers of the terminal and the physical uplink control channel status comprises:
calculating the bit information size of the confirmation information of the service data required to be fed back by the terminal based on the number of the scheduled member carriers of the terminal;
and determining the size, the position and the modulation coding mode of an uplink feedback resource for feeding back the service data based on the bit information size and the physical uplink control channel state of the acknowledgement information of the service data required to be fed back by the terminal.
3. The method according to claim 1 or 2, wherein the determining the indication signaling of the uplink feedback resource based on the size, the position and the modulation and coding scheme of the uplink feedback resource comprises:
and acquiring bit information corresponding to the size, the position and the modulation coding mode of the uplink feedback resource, and setting the bit information corresponding to the size, the position and the modulation coding mode of the uplink feedback resource as an indication signaling of the uplink feedback resource.
4. The method according to claim 1 or 2, wherein the determining the indication signaling of the uplink feedback resource based on the size, the position and the modulation and coding scheme of the uplink feedback resource comprises:
determining a unique uplink feedback resource parameter set based on the size, the position and the modulation coding mode of the uplink feedback resource, wherein the uplink feedback resource parameter set comprises the size, the position and the modulation coding mode of the uplink feedback resource, and the uplink feedback resource parameter set only corresponds to an index identifier;
and setting the index identifier corresponding to the uplink feedback resource parameter set determined based on the size, the position and the modulation coding mode of the uplink feedback resource as an indication signaling of the uplink feedback resource.
5. The method according to claim 4, wherein the index identifier uniquely corresponding to the uplink feedback resource parameter set is determined according to a preset mapping table.
6. A signaling processing system applied to a base station in an enhanced carrier aggregation system, the base station being connected to a terminal, the system comprising:
a receiving unit, configured to receive a downlink service request of the terminal, and determine a downlink scheduling assignment signaling, where the downlink service request is used to request service data, and the downlink scheduling assignment signaling is used to indicate scheduling assignment of service data corresponding to the downlink service request;
an uplink feedback resource parameter determining unit, configured to determine, based on the number of scheduled component carriers of the terminal and a physical uplink control channel state, a size, a position, and a modulation and coding scheme of an uplink feedback resource for feeding back the service data; the number of the member carriers in the enhanced carrier aggregation system is less than or equal to 32;
an indication signaling determination unit of the uplink feedback resource, configured to determine an indication signaling of the uplink feedback resource based on the size, the position, and the modulation and coding scheme of the uplink feedback resource determined by the uplink feedback resource parameter determination unit, where the indication signaling of the uplink feedback resource is used to inform the terminal of the size, the position, and the modulation and coding scheme of the uplink feedback resource for feeding back the service data;
an adding unit, configured to add the indication signaling of the uplink feedback resource determined by the indication signaling determination unit of the uplink feedback resource to the tail of the downlink scheduling assignment signaling to obtain a hybrid signaling;
and the mixed signaling sending unit is used for sending the mixed signaling to the terminal through a physical downlink control channel, sending the service data corresponding to the downlink service request to the terminal through a physical downlink shared channel, so that the terminal extracts downlink scheduling distribution signaling from the mixed signaling to indicate the scheduling distribution of the service data, and extracts the indication signaling of the uplink feedback resource from the mixed signaling to determine the size, the position and the modulation coding mode of the uplink feedback resource for feeding back the service data.
7. The system according to claim 6, wherein the uplink feedback resource parameter determining unit comprises:
a calculating subunit, configured to calculate, based on the number of scheduled component carriers of the terminal, a bit information size of acknowledgment information that the terminal needs to feed back the service data;
and the uplink feedback resource parameter determining subunit is configured to determine, based on the bit information size and the physical uplink control channel state of the acknowledgment information that the terminal needs to feed back the service data, the size, the position, and the modulation and coding scheme of the uplink feedback resource used for feeding back the service data.
8. The system according to claim 6 or 7, wherein the unit for determining the indication signaling of the uplink feedback resource comprises:
and the setting subunit is used for acquiring bit information corresponding to the size, the position and the modulation coding mode of the uplink feedback resource respectively, and setting the bit information corresponding to the size, the position and the modulation coding mode of the uplink feedback resource as an indication signaling of the uplink feedback resource.
9. The system according to claim 6 or 7, wherein the unit for determining the indication signaling of the uplink feedback resource comprises:
an uplink feedback resource parameter set determining subunit, configured to determine a unique uplink feedback resource parameter set based on the size, the position, and the modulation and coding scheme of the uplink feedback resource, where the uplink feedback resource parameter set includes the size, the position, and the modulation and coding scheme of the uplink feedback resource, and the uplink feedback resource parameter set uniquely corresponds to an index identifier;
and the determining subunit is configured to set, as an indication signaling of the uplink feedback resource, an index identifier corresponding to the uplink feedback resource parameter set determined based on the size, the position, and the modulation and coding scheme of the uplink feedback resource.
10. The system according to claim 9, wherein the index identifier uniquely corresponding to the uplink feedback resource parameter set is determined according to a preset mapping table.
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| WO2023004718A1 (en) * | 2021-07-29 | 2023-02-02 | Oppo广东移动通信有限公司 | Information feedback method and apparatus, device, and storage medium |
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