CN109547178B - PUCCH resource allocation method and device - Google Patents
PUCCH resource allocation method and device Download PDFInfo
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- CN109547178B CN109547178B CN201710868845.6A CN201710868845A CN109547178B CN 109547178 B CN109547178 B CN 109547178B CN 201710868845 A CN201710868845 A CN 201710868845A CN 109547178 B CN109547178 B CN 109547178B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- 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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- 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
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Abstract
The invention discloses a PUCCH resource allocation method and a PUCCH resource allocation device, which are used for solving the problems that the method for allocating PUCCH resources in the prior art is poor in flexibility and easily causes resource waste or service failure. The method comprises the following steps: when the base station determines that the accessed first terminal equipment is the first type terminal equipment or the second type terminal equipment and determines that the resource quantity of the PUCCH format3 resource to be allocated is zero, the base station selects the second terminal equipment allocated with the PUCCH format3 resource, releases the PUCCH format3 resource of the second terminal equipment, and then allocates the released PUCCH format3 resource to the first terminal equipment.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for allocating Physical Uplink Control Channel (PUCCH) resources.
Background
The PUCCH is used to transmit uplink control Information, such as SRI (Scheduling Request Information), CSI (Channel State Information), and HARQ (hybrid automatic Repeat Request) ACK (Acknowledgement)/NACK (unacknowledged Acknowledgement) feedback Information for downlink Scheduling. In a Long Term Evolution (LTE) network supporting Carrier Aggregation (CA), a base station needs to allocate PUCCH format 3(format 3) resources or PUCCH format1b (format 1b with channel selection, 1b-cs) resources for a terminal device supporting two or more Component Carriers (CCs) to ensure HARQ ACK/NACK feedback of the terminal device. The PUCCH format1b-cs resource supports 4-bit HARQ ACK/NACK feedback information, the PUCCH format3 resource supports 20-bit HARQ ACK/NACK feedback information, and the feedback performance of the PUCCH format3 resource is superior to that of the PUCCH format1b-cs resource.
According to the existing protocol, for a terminal device (hereinafter referred to as a first type terminal device) supporting 2 CCs and having a Time Division Duplex (TDD) mode with a primary cell of subframe configuration type 2 and a Frequency Division Duplex (FDD) mode with a secondary cell, a base station must allocate puccfomat 3 resources to the terminal device; for a second type of terminal equipment except for the first type of terminal equipment in terminal equipment supporting 2 CCs, a base station may allocate any one of PUCCH format3 resources and PUCCH format1b-cs resources to the second type of terminal equipment; for a terminal device supporting 3 or more CCs, the base station must allocate PUCCH format3 resources to the terminal device.
At present, a maintainer configures a switch parameter for selecting to preferentially allocate PUCCH format3 resources/PUCCHHfom 1b-cs resources for a base station, and the base station allocates the PUCCH format3 resources or PUCCH format1b-cs resources for a second type of terminal equipment according to a switch opening result currently configured by the maintainer. The maintenance personnel need to adjust the switch-on result continuously and manually according to the service requirement in a period of time.
However, in practice, if the current PUCCH format3 resource is quite sufficient, the base station preferentially allocates PUCCH format1b-cs resources to the second class of terminal devices according to the switch-on result, which may cause that the PUCCH format3 resource with better feedback performance is not fully utilized, resulting in resource waste. If the current PUCCH format3 resource is limited, the base station preferentially allocates the PUCCH format3 resource to the second type of terminal device according to the switch-on result, which may cause that the subsequently accessed first type of terminal device and the terminal device supporting 3 or more CCs cannot allocate the required PUCCH format3 resource, resulting in service failure.
Obviously, the method for allocating PUCCH resources is poor in flexibility, and resource waste or service failure is easily caused.
Disclosure of Invention
The invention provides a PUCCH resource allocation method and a PUCCH resource allocation device, which are used for solving the problems that the method for allocating PUCCH resources in the prior art is poor in flexibility and easily causes resource waste or service failure.
The embodiment of the invention provides the following specific technical scheme:
in a first aspect, an embodiment of the present invention provides a PUCCH resource allocation method, including:
the base station determines the resource quantity of PUCCH format3 resources to be allocated;
when the base station determines that the accessed first terminal equipment is the first type terminal equipment or the second type terminal equipment and determines that the resource amount is zero, the base station selects the second terminal equipment which is allocated with the PUCCH format3 resource and releases the PUCCH format3 resource of the second terminal equipment; the first type of terminal equipment is a Time Division Duplex (TDD) mode which supports 2 Component Carriers (CC) and has a main cell of a subframe matching type 2, and the auxiliary cell is terminal equipment of a Frequency Division Duplex (FDD) mode; the second type of terminal equipment is terminal equipment supporting N CCs, and N is an integer greater than or equal to 3; the second terminal device is a third type terminal device, and the third type terminal device is a terminal device supporting 2 CCs except the first type terminal device;
and the base station allocates the released PUCCH format3 resource to the first terminal equipment.
With reference to the first aspect, in a first possible implementation manner of the first aspect, the method further includes:
when the base station determines that the first terminal equipment accessed is the first type terminal equipment, the base station judges whether the resource amount is greater than or equal to a set threshold value;
if so, the base station allocates PUCCH format3 resources to the first terminal equipment;
otherwise, the base station allocates PUCCH format1b-cs resources with channel selection for the first terminal equipment.
With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the allocating, by the base station, PUCCH format1b-cs resources to the first terminal device includes:
the base station judges whether a first PUCCH format1b-cs resource exists or not; the first PUCCHfomat 1b-cs resource is a PUCCH resource used by one terminal device;
if so, the base station allocates the first PUCCH format1b-cs resources to the first terminal equipment;
otherwise, the base station allocates a second PUCCH format1b-cs resource to the first terminal device, wherein the second PUCCH format1b-cs resource is a PUCCH resource shared by a plurality of terminal devices.
With reference to the first aspect, in a third possible implementation manner of the first aspect, the selecting, by the base station, the second terminal device to which the PUCCH format3 resource is allocated includes:
the base station determines that at least one terminal device to be selected with the allocated PUCCH format3 resource exists, wherein the at least one terminal device to be selected is the third type terminal device;
and the base station selects target terminal equipment from the at least one terminal equipment to be selected and takes the target terminal equipment as the second terminal equipment.
With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, when there are a plurality of the at least one candidate terminal device, the selecting, by the base station, the target terminal device in the at least one candidate terminal device includes:
the base station determines the terminal equipment to be selected with the lowest current traffic in the at least one terminal equipment to be selected;
and the base station takes the determined terminal equipment to be selected as the target terminal equipment.
With reference to the first aspect and any one of the first to fourth possible implementation manners of the first aspect, in a fifth possible implementation manner of the first aspect, after the base station releases the PUCCH format3 resource of the second terminal device, the method further includes:
and the base station allocates PUCCH format1b-cs resources to the second terminal equipment.
In a second aspect, an embodiment of the present invention provides a base station, including:
a determining unit, configured to determine a resource amount of a PUCCH format3 resource to be allocated;
a processing unit, configured to select, when the station determines that the first terminal device that is accessed is a first type terminal device or a second type terminal device and determines that the resource amount is zero, a second terminal device to which a PUCCH format3 resource is allocated, and release the PUCCH format3 resource of the second terminal device; the first type of terminal equipment is a Time Division Duplex (TDD) mode which supports 2 Component Carriers (CC) and has a main cell of a subframe matching type 2, and the auxiliary cell is terminal equipment of a Frequency Division Duplex (FDD) mode; the second type of terminal equipment is terminal equipment supporting N CCs, and N is an integer greater than or equal to 3; the second terminal device is a third type terminal device, and the third type terminal device is a terminal device supporting 2 CCs except the first type terminal device;
an allocating unit, configured to allocate the released PUCCH format3 resource to the first terminal device.
With reference to the second aspect, in a first possible implementation manner of the second aspect,
the processing unit is further configured to:
when the first terminal equipment which is accessed is determined to be the first type terminal equipment, judging whether the resource amount is larger than or equal to a set threshold value;
the allocation unit is further configured to:
if the processing unit judges that the resource amount is greater than or equal to the set threshold, the PUCCH format3 resource is allocated to the first terminal device; and
and if the processing unit judges that the resource amount is not greater than or equal to the set threshold, the PUCCH format1b-cs resources with channel selection are distributed to the first terminal equipment.
With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, when allocating PUCCH format1b-cs resources to the first terminal device, the allocating unit is specifically configured to:
judging whether a first PUCCH format1b-cs resource exists or not; the first PUCCH format1b-cs resource is a PUCCH resource used by a terminal device;
if so, allocating the first PUCCH format1b-cs resources to the first terminal equipment;
otherwise, second PUCCH format1b-cs resources are allocated to the first terminal equipment, wherein the second PUCCH format1b-cs resources are PUCCH resources shared by a plurality of terminal equipment.
With reference to the second aspect, in a third possible implementation manner of the second aspect, when selecting the second terminal device to which the PUCCH format3 resource is allocated, the processing unit is specifically configured to:
determining that at least one terminal device to be selected with the allocated PUCCH format3 resource exists, wherein the at least one terminal device to be selected is the third type terminal device;
and selecting a target terminal device from the at least one terminal device to be selected, and taking the target terminal device as the second terminal device.
With reference to the third possible implementation manner of the second aspect, in a fourth possible implementation manner of the second aspect, when the at least one candidate terminal device is multiple, the processing unit is specifically configured to, when the target terminal device is selected from the at least one candidate terminal device:
determining the terminal equipment to be selected with the lowest current traffic in the at least one terminal equipment to be selected;
and taking the determined terminal equipment to be selected as the target terminal equipment.
With reference to the second aspect and any one of the first to fourth possible implementation manners of the second aspect, in a fifth possible implementation manner of the second aspect, the allocating unit is further configured to:
and after the processing unit releases the PUCCH format3 resource of the second terminal equipment, PUCCH format1b-cs resource is allocated to the second terminal equipment.
In the technical scheme of the embodiment of the invention, when the base station determines that the accessed first terminal equipment is the first type terminal equipment or the second type terminal equipment and determines that the resource quantity of the PUCCH format3 resource to be allocated is zero, the base station selects the second terminal equipment allocated with the PUCCH format3 resource, releases the PUCCH format3 resource of the second terminal equipment, and then allocates the released PUCCH format3 resource to the first terminal equipment. In the method, the base station can automatically and flexibly allocate the appropriate PUCCH resource to the terminal equipment according to the actual condition of the resource quantity of the PUCCH format3 resource and the type of the accessed terminal equipment, so that the PUCCH format3 resource with better feedback performance can be fully utilized, and the successful operation of the accessed terminal equipment service can be ensured.
Drawings
Fig. 1 is an architecture diagram of a communication network according to an embodiment of the present invention;
fig. 2 is a flowchart of a PUCCH resource allocation method according to an embodiment of the present invention;
fig. 3 is a flowchart of an example of a PUCCH resource allocation method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a base station according to an embodiment of the present invention;
fig. 5 is a structural diagram of a base station according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, 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.
The embodiment of the invention provides a PUCCH resource allocation method and a PUCCH resource allocation device, which are used for solving the problems that the method for allocating PUCCH resources in the prior art is poor in flexibility and easily causes resource waste or service failure. The method and the device are based on the same inventive concept, and because the principles of solving the problems of the method and the device are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not repeated.
In the technical scheme of the embodiment of the invention, when the base station determines that the accessed first terminal equipment is the first type terminal equipment or the second type terminal equipment and determines that the resource quantity of the PUCCH format3 resource to be allocated is zero, the base station selects the second terminal equipment allocated with the PUCCH format3 resource, releases the PUCCH format3 resource of the second terminal equipment, and then allocates the released PUCCH format3 resource to the first terminal equipment. In the method, the base station can automatically and flexibly allocate the appropriate PUCCH resource to the terminal equipment according to the actual condition of the resource quantity of the PUCCH format3 resource and the type of the accessed terminal equipment, so that the PUCCH format3 resource with better feedback performance can be fully utilized, and the successful operation of the accessed terminal equipment service can be ensured.
In order to more clearly describe the technical solution of the embodiment of the present invention, a PUCCH resource allocation method and apparatus provided in the embodiment of the present invention are described in detail below with reference to the accompanying drawings.
Fig. 1 shows a possible communication network to which the PUCCH resource allocation method provided in the embodiment of the present invention is applicable, where the architecture of the communication network includes a base station and a plurality of terminal devices (e.g., terminal device 1, terminal device 2, terminal device 3, and terminal device 4 in fig. 1), where:
the base station controls a plurality of cells, such as cell 1, cell 2, and cell 3 in fig. 1, and provides access service to terminal devices in each cell. In the embodiment of the present invention, the base station is configured to allocate a suitable PUCCH resource to the terminal device by determining a carrier aggregation capability of each terminal device in a cell under the base station, so as to ensure HARQ ACK/NACK feedback of the terminal device, so that a service of the terminal device is successfully performed.
Specifically, the carrier aggregation capability of each terminal device is to support 2 CCs, or to support 3 or more CCs, and in general, a terminal device supporting several CCs may be understood as that the terminal device may download data through several cells. For example, the terminal device 1 shown in fig. 1 is in the overlapping coverage area of the cell 1, the cell 2, and the cell 3, so that the terminal device 1 can download data through the above three cells, that is, the terminal device 1 supports 3 CCs. For another example, the terminal device 2 shown in fig. 1 is in the overlapping coverage area of the cell 1 and the cell 2, so that the terminal device 2 can download data through the two cells, that is, the terminal device 2 supports 2 CCs. Similarly, the terminal device 3 and the terminal device 4 both support 2 CCs.
In practice, when a terminal device supporting 3 or more CCs cannot allocate a suitable PUCCH resource (i.e., a pucchfmat 3 resource), the terminal device may also perform two-carrier aggregation as a terminal device supporting 2 CCs, and at this time, the base station only needs to allocate a PUCCH format1b-cs resource to the terminal device.
And the terminal devices are used for respectively carrying out HARQ ACK/NACK feedback through the PUCCH resources allocated by the base station so as to successfully carry out subsequent services.
It should be noted that fig. 1 is only an example of a communication network, and optionally, the communication network may include a plurality of base stations, and the plurality of terminal devices may be located in a plurality of cells under the plurality of base stations, that is, an overlapping coverage area where any terminal device is located, and may be an overlapping coverage area of a plurality of cells under different base stations.
The PUCCH resource allocation method provided by the embodiment of the invention is suitable for the communication network shown in figure 1. Referring to fig. 2, the specific process of the method includes:
step 201: and the base station determines the resource quantity of the PUCCH format3 resource to be allocated.
The Base Station may also be referred to as an Access device, and optionally, the Base Station may include but is not limited to an evolved NodeB (eNB), a Base Transceiver Station (BTS), an Access Point (AP), a Small-cell Access Point (SAP), a Wireless Access Point (WiFi AP), and the like, which is not limited in this disclosure.
As is known, since the feedback performance of the PUCCH format3 resource is better than that of the PUCCH format1b-cs resource, generally, under the condition that the PUCCH format3 resource is very sufficient, the base station may allocate the PUCCH format3 resource to any accessed terminal device supporting carrier aggregation, so that the rate at which the terminal device feeds back HARQ ACK/NACK feedback information may be higher, and further, it is ensured that the service success rate of the terminal device is higher, so that the terminal device needs to perform step 201.
Optionally, because the base station maintains the PUCCH format3 resource to be allocated in real time, the base station may determine the resource amount of the PUCCH format3 resource to be allocated in real time.
Step 202: when the base station determines that the accessed first terminal equipment is the first type terminal equipment or the second type terminal equipment and determines that the resource amount is zero, the base station selects the second terminal equipment which is allocated with the PUCCH format3 resource and releases the PUCCH format3 resource of the second terminal equipment.
The first type of terminal equipment is a Time Division Duplex (TDD) mode supporting 2 CCs and having a main cell of a subframe matching type 2, and the auxiliary cell is a terminal equipment of a Frequency Division Duplex (FDD) mode; the second type of terminal equipment is terminal equipment supporting N CCs, and N is an integer greater than or equal to 3; the second terminal device is a third type terminal device, and the third type terminal device is a terminal device other than the first type terminal device among terminal devices supporting 2 CCs.
Specifically, the base station releases the PUCCH format3 resource of the second terminal device, and specifically, when the base station releases the PUCCH format3 resource of the secondary cell of the second terminal device, the base station releases the PUCCH format3 resource of the secondary cell of the second terminal device.
In practice, since the second type of terminal device can only configure three-carrier aggregation or more than three-carrier aggregation when allocated to PUCCH format3 resources, or else can only configure two-carrier aggregation even when allocated to PUCCH format1b-cs resources, the capability of the second type of terminal device to support 3 or more CCs cannot be embodied; similarly, since the first type of terminal device can configure two-carrier aggregation only when allocated to the PUCCH format3 resource, otherwise, two-carrier aggregation cannot be configured. Therefore, only if the first type of terminal device and the second type of terminal device are allocated to PUCCH format3 resources, the optimal carrier aggregation capability in the communication network can be achieved. However, the terminal device of the third category may configure two-carrier aggregation regardless of whether the terminal device of the third category is allocated to PUCCH format3 resource or PUCCH format1b-cs resource, so that the base station may execute step 202 and the following step 203 to re-allocate the terminal device of the first category or the first terminal device of the second category to the terminal device of the first category or the second category after releasing the PUCCH format3 resource allocated to the second terminal device belonging to the terminal device of the third category, so that the first terminal device may allocate the most appropriate PUCCH resource. In this way, the base station can automatically and flexibly allocate a proper PUCCH resource to the first terminal device, so that not only can the PUCCH format3 resource with better feedback performance be fully utilized, but also the successful operation of the accessed first terminal device service can be ensured.
Optionally, the base station selects the second terminal device to which the PUCCH format3 resource is allocated, and the specific method may be:
the base station determines that at least one terminal device to be selected with the allocated PUCCH format3 resource exists, wherein the at least one terminal device to be selected is the third type terminal device;
and the base station selects target terminal equipment from the at least one terminal equipment to be selected and takes the target terminal equipment as the second terminal equipment.
Optionally, when there is one terminal device to be selected, the base station directly uses the terminal device to be selected as the target terminal device; when there are multiple at least one candidate terminal device, the base station selects the target terminal device from the at least one candidate terminal device, and the specific methods may be the following two methods:
the first method comprises the following steps: and the base station determines the terminal equipment to be selected with the lowest current traffic in the at least one terminal equipment to be selected, and takes the determined terminal equipment to be selected as the target terminal equipment.
The second method comprises the following steps: and the base station randomly selects one terminal device to be selected from the at least one terminal device to be selected, and takes the selected terminal device to be selected as the target terminal device.
In the two methods, the base station determines the target terminal device by using the first method, and the influence degree of the target terminal device on the subsequent service can be reduced to the minimum compared with the case that the target terminal device is determined by using the second method.
Optionally, the base station determines that the first terminal device is the first type terminal device or the second type terminal device, but when it is determined that the resource amount is greater than zero, the base station directly allocates a puchformat 3 resource to the first terminal device.
Optionally, when the resource amount of the PUCCH format3 resource is zero, and when the second terminal device does not exist in the third class of terminal devices accessing the base station, the base station allocates a PUCCH resource to the first terminal device according to a method in the prior art, specifically: when the first terminal equipment is the first type terminal equipment, the base station does not allocate PUCCH resources to the first terminal equipment, namely, the process of allocating PUCCH resources is directly finished; when the first terminal equipment is the second type terminal equipment, the base station firstly judges whether the first terminal equipment is in a Time Division Duplex (TDD) mode with a main cell being in a subframe ratio type 2 or not, an auxiliary cell is in a Frequency Division Duplex (FDD) mode, if so, the PUCCH resource is not distributed to the first terminal equipment, the PUCCH resource distribution process is directly ended, and otherwise, the PUCCH format1b-cs resource is distributed to the first terminal equipment.
Optionally, after the base station determines a resource amount of a PUCCH format3 resource to be allocated, the method further includes:
when the base station determines that the first terminal equipment is the third type terminal equipment, the base station judges whether the resource amount is greater than or equal to a set threshold value;
if so, the base station allocates PUCCH format3 resources to the first terminal equipment;
otherwise, the base station allocates PUCCH format1b-cs resources with channel selection for the first terminal equipment.
By the method, when the base station allocates the PUCCH resources to the first type of terminal equipment, maintenance personnel do not need to manually adjust the switch parameters which are configured and selected in the base station to preferentially allocate the PUCCH format3 resources/PUCCHfformt 1b-cs resources according to actual requirements, so that the base station can automatically and flexibly allocate the PUCCH resources to the first type of terminal equipment according to the set threshold value, and the allocation efficiency can be improved.
Optionally, the base station allocates PUCCH format1b-cs resources to the first terminal device, and the specific method may be:
the base station judges whether a first PUCCH format1b-cs resource exists or not; the first PUCCHFIfom 1b-cs resource is a PUCCH resource used by one terminal device, namely can only be dedicated by one terminal device, and can be called as a dedicated PUCCH format1b-cs resource;
if so, the base station allocates the first PUCCH format1b-cs resources to the first terminal equipment;
otherwise, the base station allocates a second PUCCH format1b-cs resource to the first terminal device, where the second PUCCH format1b-cs resource is a PUCCH resource shared by multiple terminal devices and may be referred to as a common PUCCHformat 1b-cs resource.
Optionally, after releasing the PUCCH format3 resource of the second terminal device, the base station allocates a PUCCH format1b-cs resource to the second terminal device. The method for allocating the PUCCH format1b-cs resource to the second terminal device by the base station is the same as the method for allocating the PUCCH format1b-cs resource to the first terminal device by the base station when the resource amount is smaller than the set threshold, which may be referred to herein and is not repeated herein.
Step 203: and the base station allocates the released PUCCH format3 resource to the first terminal equipment.
By adopting the PUCCH resource allocation method provided in the embodiment of the present invention, when the base station determines that the first terminal device to be accessed is the first type terminal device or the second type terminal device and determines that the resource amount of the PUCCH format3 resource to be allocated is zero, the base station selects the second terminal device to which the PUCCH format3 resource is allocated, and after releasing the PUCCH format3 resource of the second terminal device, allocates the released PUCCH format3 resource to the first terminal device. In the method, the base station can automatically and flexibly allocate the appropriate PUCCH resource to the terminal equipment according to the actual condition of the resource quantity of the PUCCH format3 resource and the type of the accessed terminal equipment, so that the PUCCH format3 resource with better feedback performance can be fully utilized, and the successful operation of the accessed terminal equipment service can be ensured.
Based on the above embodiments, an embodiment of the present invention further provides an example of a PUCCH resource allocation method, which is shown in fig. 3, and a specific flow of the example includes:
step 301: and the base station determines the resource quantity of the PUCCH format3 resource to be allocated.
Step 302: the base station determines whether an accessed first terminal device is a first type terminal device or a second type terminal device or a third type terminal device, and when the base station determines that the base station is the first type terminal device or the second type terminal device, the base station executes step 303; when the base station determines that the base station is the third type terminal device, the base station performs step 304.
The first type of terminal equipment is a Time Division Duplex (TDD) mode which supports 2 Component Carriers (CC) and has a main cell of a subframe matching type 2, and the auxiliary cell is terminal equipment of a Frequency Division Duplex (FDD) mode; the second type of terminal equipment is terminal equipment supporting N CCs, and N is an integer greater than or equal to 3; the third type of terminal equipment is terminal equipment except the first type of terminal equipment in terminal equipment supporting 2 CCs.
Step 303: the base station determines whether the resource amount is zero, if so, performs step 305, otherwise, performs step 306.
Step 304: the base station determines whether the resource amount is greater than or equal to a set threshold, if so, step 306 is executed, otherwise, step 307 is executed.
Step 305: the base station determines whether a second terminal device having allocated PUCCH format3 resource exists, if yes, step 308 is executed, otherwise step 309 is executed.
And the second terminal equipment is third-class terminal equipment.
Step 306: and the base station allocates PUCCH format3 resources to the first terminal equipment.
Step 307: the base station judges whether the special PUCCH format1b-cs resources exist, if so, step 310 is executed, otherwise, step 311 is executed.
The dedicated PUCCH format1b-cs resource is the first PUCCH format1b-cs resource mentioned in the embodiment shown in fig. 2.
Step 308: the base station releases the PUCCH format3 resource of the second terminal device, and allocates the released PUCCH format3 resource to the first terminal device, and then the base station executes step 312.
Step 309: the base station determines whether the first terminal device is in a Time Division Duplex (TDD) mode with a primary cell being a subframe configuration type 2 and the secondary cell is in a Frequency Division Duplex (FDD) mode, if so, step 312 is executed, otherwise, step 307 is executed.
Step 310: the base station allocates a dedicated PUCCH format1b-cs resource to the first terminal device, and then executes step 312.
Step 311: the base station allocates a common PUCCH format1b-cs resource to the first terminal device, and then executes step 312.
The common PUCCH format1b-cs resource is the second PUCCH format1b-cs resource mentioned in the embodiment shown in fig. 2.
Step 312: and (6) ending.
By adopting the example provided by the embodiment of the invention, the base station can automatically and flexibly allocate the appropriate PUCCH resource to the terminal equipment according to the actual condition of the resource amount of the PUCCH format3 resource and the type of the accessed terminal equipment, so that the PUCCH format3 resource with better feedback performance can be fully utilized, and the successful operation of the accessed terminal equipment service can be ensured.
Based on the above embodiments, an embodiment of the present invention further provides a base station, where the base station has a function of implementing a PUCCH resource allocation method shown in fig. 2 and fig. 3, and referring to fig. 4, the base station 400 includes: a determination unit 401, a processing unit 402 and an allocation unit 403, wherein:
the determining unit 401 is configured to determine a resource amount of a PUCCH format3 resource to be allocated;
the processing unit 402 is configured to, when the station determines that the first terminal device that is accessed is a first type terminal device or a second type terminal device and determines that the resource amount is zero, select a second terminal device to which a PUCCH format3 resource is allocated, and release a PUCCH format3 resource of the second terminal device; the first type of terminal equipment is a Time Division Duplex (TDD) mode which supports 2 Component Carriers (CC) and has a main cell of a subframe matching type 2, and the auxiliary cell is terminal equipment of a Frequency Division Duplex (FDD) mode; the second type of terminal equipment is terminal equipment supporting N CCs, and N is an integer greater than or equal to 3; the second terminal device is a third type terminal device, and the third type terminal device is a terminal device supporting 2 CCs except the first type terminal device;
the allocating unit 403 is configured to allocate the released PUCCH format3 resource to the first terminal device.
Optionally, the processing unit 402 is further configured to:
when the first terminal equipment which is accessed is determined to be the first type terminal equipment, judging whether the resource amount is larger than or equal to a set threshold value;
the allocating unit 403 is further configured to:
if the processing unit 402 determines that the resource amount is greater than or equal to the set threshold, allocating PUCCH format3 resources to the first terminal device; and
if the processing unit 402 determines that the resource amount is not greater than or equal to the set threshold, the PUCCH format1b-cs resources with channel selection are allocated to the first terminal device.
Optionally, when allocating PUCCH format1b-cs resources to the first terminal device, the allocating unit 403 is specifically configured to:
judging whether a first PUCCH format1b-cs resource exists or not; the first PUCCH format1b-cs resource is a PUCCH resource used by a terminal device;
if so, allocating the first PUCCH format1b-cs resources to the first terminal equipment;
otherwise, second PUCCH format1b-cs resources are allocated to the first terminal equipment, wherein the second PUCCH format1b-cs resources are PUCCH resources shared by a plurality of terminal equipment.
Optionally, when selecting the second terminal device to which the PUCCH format3 resource is allocated, the processing unit 402 is specifically configured to:
determining that at least one terminal device to be selected with the allocated PUCCH format3 resource exists, wherein the at least one terminal device to be selected is the third type terminal device;
and selecting a target terminal device from the at least one terminal device to be selected, and taking the target terminal device as the second terminal device.
Optionally, when there are multiple at least one terminal device to be selected, the processing unit 402 is specifically configured to, when selecting the target terminal device from the at least one terminal device to be selected:
determining the terminal equipment to be selected with the lowest current traffic in the at least one terminal equipment to be selected;
and taking the determined terminal equipment to be selected as the target terminal equipment.
Optionally, the allocating unit 403 is further configured to:
after the processing unit 402 releases the PUCCH format3 resource of the second terminal device, PUCCH format1b-cs resource is allocated to the second terminal device.
By using the base station provided in the embodiment of the present invention, when it is determined that the first terminal device to be accessed is the first type terminal device or the second type terminal device and it is determined that the resource amount of the PUCCH format3 resource to be allocated is zero, the second terminal device to which the PUCCH format3 resource is allocated is selected, and after the PUCCH format3 resource of the second terminal device is released, the released PUCCH format3 resource is allocated to the first terminal device. Therefore, the base station can automatically and flexibly allocate the appropriate PUCCH resource to the terminal equipment according to the actual condition of the resource amount of the PUCCHfomat 3 resource and the type of the accessed terminal equipment, so that the PUCCH format3 resource with better feedback performance can be fully utilized, and the successful operation of the accessed terminal equipment service can be ensured.
It should be noted that the division of the unit in the embodiment of the present invention is schematic, and is only a logic function division, and there may be another division manner in actual implementation. The functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. 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.
Based on the above embodiments, the embodiment of the present invention further provides a base station, where the base station has a function of implementing a PUCCH resource allocation method as shown in fig. 2 and fig. 3. Referring to fig. 5, the base station 500 includes: a processor 501, a transceiver 502, a bus 503, and a memory 504, wherein:
the processor 501 is configured to read the program in the memory 504, and execute the following processes:
determining the resource quantity of PUCCH format3 resources to be allocated;
when the first terminal device which is accessed is determined to be a first type terminal device or a second type terminal device and the resource amount is determined to be zero, selecting the second terminal device which is allocated with the PUCCH format3 resource, and releasing the PUCCH format3 resource of the second terminal device; the first type of terminal equipment is a Time Division Duplex (TDD) mode which supports 2 Component Carriers (CC) and has a main cell of a subframe matching type 2, and the auxiliary cell is terminal equipment of a Frequency Division Duplex (FDD) mode; the second type of terminal equipment is terminal equipment supporting N CCs, and N is an integer greater than or equal to 3; the second terminal device is a third type terminal device, and the third type terminal device is a terminal device supporting 2 CCs except the first type terminal device;
and allocating the released PUCCH format3 resource to the first terminal equipment.
Optionally, the processor 501 is further configured to:
when the first terminal equipment which is accessed is determined to be the first type terminal equipment, judging whether the resource amount is larger than or equal to a set threshold value;
if so, allocating PUCCH format3 resources to the first terminal equipment;
otherwise, the PUCCH format1b-cs resources with the channel selection are distributed for the first terminal equipment.
Optionally, when the processor 501 allocates PUCCH format1b-cs resources to the first terminal device, the processor is specifically configured to:
judging whether a first PUCCH format1b-cs resource exists or not; the first PUCCH format1b-cs resource is a PUCCH resource used by a terminal device;
if so, allocating the first PUCCH format1b-cs resources to the first terminal equipment;
otherwise, second PUCCH format1b-cs resources are allocated to the first terminal equipment, wherein the second PUCCH format1b-cs resources are PUCCH resources shared by a plurality of terminal equipment.
Optionally, when selecting the second terminal device to which the PUCCH format3 resource is allocated, the processor 501 is specifically configured to:
determining that at least one terminal device to be selected with the allocated PUCCH format3 resource exists, wherein the at least one terminal device to be selected is the third type terminal device;
and selecting a target terminal device from the at least one terminal device to be selected, and taking the target terminal device as the second terminal device.
Optionally, when there are a plurality of the at least one terminal device to be selected, the processor 501, when selecting the target terminal device from the at least one terminal device to be selected, is specifically configured to:
determining the terminal equipment to be selected with the lowest current traffic in the at least one terminal equipment to be selected;
and taking the determined terminal equipment to be selected as the target terminal equipment.
Optionally, after releasing the PUCCH format3 resource of the second terminal device, the processor 501 is further configured to: and allocating PUCCH format1b-cs resources to the second terminal equipment.
The transceiver 502 is used for receiving and transmitting data under the control of the processor 501.
In fig. 5, the bus architecture may comprise any number of interconnected buses and bridges, with one or more processors represented by the processor 501 and various circuits of the memory represented by the memory 504 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 502 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 501 is responsible for managing the bus architecture and general processing, and the memory 504 may store data used by the processor 501 in performing operations.
By using the base station provided in the embodiment of the present invention, when it is determined that the first terminal device to be accessed is the first type terminal device or the second type terminal device and it is determined that the resource amount of the PUCCH format3 resource to be allocated is zero, the second terminal device to which the PUCCH format3 resource is allocated is selected, and after the PUCCH format3 resource of the second terminal device is released, the released PUCCH format3 resource is allocated to the first terminal device. Therefore, the base station can automatically and flexibly allocate the appropriate PUCCH resource to the terminal equipment according to the actual condition of the resource amount of the PUCCHfomat 3 resource and the type of the accessed terminal equipment, so that the PUCCH format3 resource with better feedback performance can be fully utilized, and the successful operation of the accessed terminal equipment service can be ensured.
In summary, in the method, a base station selects a second terminal device to which a PUCCH format3 resource is allocated when it is determined that an accessed first terminal device is a first type terminal device or a second type terminal device and it is determined that a resource amount of a PUCCH format3 resource to be allocated is zero, and after releasing the PUCCH format3 resource of the second terminal device, allocates the released PUCCH format3 resource to the first terminal device. In the method, the base station can automatically and flexibly allocate the appropriate PUCCH resource to the terminal equipment according to the actual condition of the resource quantity of the PUCCH format3 resource and the type of the accessed terminal equipment, so that the PUCCH format3 resource with better feedback performance can be fully utilized, and the successful operation of the accessed terminal equipment service can be ensured.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.
Claims (12)
1. A Physical Uplink Control Channel (PUCCH) resource allocation method is characterized by comprising the following steps:
the base station determines the resource quantity of PUCCH format3 resources to be allocated;
when the base station determines that the accessed first terminal equipment is the first type terminal equipment or the second type terminal equipment and determines that the resource amount is zero, the base station selects the second terminal equipment which is allocated with the PUCCH format3 resource and releases the PUCCH format3 resource of the second terminal equipment; the first type of terminal equipment is a Time Division Duplex (TDD) mode which supports 2 Component Carriers (CC) and has a main cell of a subframe matching type 2, and the auxiliary cell is terminal equipment of a Frequency Division Duplex (FDD) mode; the second type of terminal equipment is terminal equipment supporting N CCs, and N is an integer greater than or equal to 3; the second terminal device is a third type terminal device, and the third type terminal device is a terminal device supporting 2 CCs except the first type terminal device;
and the base station allocates the released PUCCH format3 resource to the first terminal equipment.
2. The method of claim 1, wherein the method further comprises:
when the base station determines that the first terminal equipment is the third type terminal equipment, the base station judges whether the resource amount is greater than or equal to a set threshold value;
if so, the base station allocates PUCCH format3 resources to the first terminal equipment;
otherwise, the base station allocates PUCCH format1b-cs resources with channel selection for the first terminal equipment.
3. The method of claim 2, wherein the base station allocates pucchfmat 1b-cs resources for the first terminal device, comprising:
the base station judges whether a first PUCCH format1b-cs resource exists or not; the first PUCCH format1b-cs resource is a PUCCH resource used by a terminal device;
if so, the base station allocates the first PUCCH format1b-cs resources to the first terminal equipment;
otherwise, the base station allocates a second PUCCH format1b-cs resource to the first terminal device, wherein the second PUCCH format1b-cs resource is a PUCCH resource shared by a plurality of terminal devices.
4. The method of claim 1, wherein the base station selecting the second terminal device to which PUCCH format3 resources have been allocated comprises:
the base station determines that at least one terminal device to be selected with the allocated PUCCH format3 resource exists, wherein the at least one terminal device to be selected is the third type terminal device;
and the base station selects target terminal equipment from the at least one terminal equipment to be selected and takes the target terminal equipment as the second terminal equipment.
5. The method of claim 4, wherein when there are a plurality of the at least one candidate terminal devices, the base station selects the target terminal device from the at least one candidate terminal device, including:
the base station determines the terminal equipment to be selected with the lowest current traffic in the at least one terminal equipment to be selected;
and the base station takes the determined terminal equipment to be selected as the target terminal equipment.
6. The method according to any of claims 1-5, wherein after the base station releases the PUCCH format3 resource of the second terminal device, the method further comprises:
and the base station allocates PUCCH format1b-cs resources to the second terminal equipment.
7. A base station, comprising:
a determining unit, configured to determine a resource amount of a PUCCH format3 resource to be allocated;
a processing unit, configured to select, when the station determines that the first terminal device that is accessed is a first type terminal device or a second type terminal device and determines that the resource amount is zero, a second terminal device to which a PUCCH format3 resource is allocated, and release the PUCCH format3 resource of the second terminal device; the first type of terminal equipment is a Time Division Duplex (TDD) mode which supports 2 Component Carriers (CC) and has a main cell of a subframe matching type 2, and the auxiliary cell is terminal equipment of a Frequency Division Duplex (FDD) mode; the second type of terminal equipment is terminal equipment supporting N CCs, and N is an integer greater than or equal to 3; the second terminal device is a third type terminal device, and the third type terminal device is a terminal device supporting 2 CCs except the first type terminal device;
an allocating unit, configured to allocate the released PUCCH format3 resource to the first terminal device.
8. The base station of claim 7,
the processing unit is further configured to:
when the first terminal equipment which is accessed is determined to be the first type terminal equipment, judging whether the resource amount is larger than or equal to a set threshold value;
the allocation unit is further configured to:
if the processing unit judges that the resource amount is greater than or equal to the set threshold, the PUCCH format3 resource is allocated to the first terminal device; and
and if the processing unit judges that the resource amount is not greater than or equal to the set threshold, the PUCCH format1b-cs resources with channel selection are distributed to the first terminal equipment.
9. The base station of claim 8, wherein the allocating unit, when allocating PUCCH format1b-cs resources for the first terminal device, is specifically configured to:
judging whether a first PUCCH format1b-cs resource exists or not; the first PUCCH format1b-cs resource is a PUCCH resource used by a terminal device;
if so, allocating the first PUCCH format1b-cs resources to the first terminal equipment;
otherwise, second PUCCH format1b-cs resources are allocated to the first terminal equipment, wherein the second PUCCH format1b-cs resources are PUCCH resources shared by a plurality of terminal equipment.
10. The base station of claim 7, wherein, when selecting the second terminal device to which the PUCCH format3 resource is allocated, the processing unit is specifically configured to:
determining that at least one terminal device to be selected with the allocated PUCCH format3 resource exists, wherein the at least one terminal device to be selected is the third type terminal device;
and selecting a target terminal device from the at least one terminal device to be selected, and taking the target terminal device as the second terminal device.
11. The base station of claim 10, wherein when the at least one candidate terminal device is multiple, the processing unit is specifically configured to, when selecting the target terminal device from the at least one candidate terminal device:
determining the terminal equipment to be selected with the lowest current traffic in the at least one terminal equipment to be selected;
and taking the determined terminal equipment to be selected as the target terminal equipment.
12. The base station of any of claims 7-11, wherein the allocation unit is further configured to:
and after the processing unit releases the PUCCH format3 resource of the second terminal equipment, PUCCH format1b-cs resource is allocated to the second terminal equipment.
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| CN102111863B (en) * | 2011-03-04 | 2014-02-12 | 电信科学技术研究院 | Transmit power control information and power control method, system and equipment |
| CN102136894B (en) * | 2011-04-12 | 2013-10-16 | 电信科学技术研究院 | Method and device for determining ACK (acknowledgement)/NACK (negative Acknowledgement) feedback bit number |
| KR102524731B1 (en) * | 2012-01-27 | 2023-04-21 | 인터디지탈 패튼 홀딩스, 인크 | Systems and/or methods for providing epdcch in a multiple carrier based and/or quasi-collated network |
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