CN112311509B - Resource allocation method and device - Google Patents
Resource allocation method and device Download PDFInfo
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- CN112311509B CN112311509B CN201910682075.5A CN201910682075A CN112311509B CN 112311509 B CN112311509 B CN 112311509B CN 201910682075 A CN201910682075 A CN 201910682075A CN 112311509 B CN112311509 B CN 112311509B
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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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0096—Indication of changes in allocation
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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
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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Abstract
The invention discloses a resource allocation method and a device, in the method, network equipment determines that the number of first terminal equipment is greater than or equal to a first preset threshold value, wherein the first terminal device is a terminal device which is not allocated with uplink control channel resources in at least one terminal device, then, determining a first uplink control channel resource group and a second uplink control channel resource group from the preset at least one uplink control channel resource group, and reallocate a part of terminal devices in the first set of uplink control channel resources to the second set of uplink control channel resources, therefore, the terminal equipment which is not allocated with the uplink control channel resource can use the uplink control channel resource in other resource groups, the flexibility of allocating the uplink control resource is increased, and the allocation of the uplink control resource is more reasonable.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a resource allocation method and apparatus.
Background
In a wireless communication network, in order to ensure the reliability of a service, a terminal device is required to feed back service data. For example, the terminal device sends an Acknowledgement (ACK) or Negative Acknowledgement (NACK) message on a Physical Uplink Control Channel (PUCCH) resource to indicate whether the base station successfully receives the traffic data.
In the prior art, PUCCH resources used by a terminal device for transmitting an ACK message or a NACK message are indicated by a base station. The base station divides the usable PUCCH resources into a plurality of resource groups, and after the terminal equipment is accessed to the base station, the base station allocates the terminal equipment to one of the resource groups. When the terminal equipment receives the service data from the base station, the base station allocates a PUCCH resource matched with the service data to the terminal equipment from the resource group, so that the terminal equipment transmits the ACK message or the NACK message by using the PUCCH resource.
The protocol provides that a fixed number of PUCCH resources are included in one PUCCH resource group, for example, 56 PUCCH resources are included at maximum. The 56 PUCCH resources may be divided into 4 sets, where each PUCCH resource in set 0 can only carry 2 bits of ACK or NACK message information at most, and each PUCCH resource in sets 1 to 3 can carry more than 2 bits of ACK or NACK message. The bit number of the ACK message or the NACK message is related to the data volume of the service data, when the data volume of the service data is large, the corresponding ACK message or NACK message exceeds 2 bits, otherwise, the bit number of the ACK message or NACK message is less than 2 bits. In this way, when the base station transmits the traffic data to the terminal device, it can be determined which set of PUCCH resources is allocated to the terminal device according to the data amount of the traffic data.
There is a case where, when the data amount of the traffic data of each terminal device is large or small among 56 terminal devices allocated to one resource group, PUCCH resources for transmitting an ACK message or a NACK message of more than 2 bits or PUCCH resources for transmitting an ACK message or a NACK message of less than 2 bits in one resource group are not sufficient, thereby blocking transmission of the traffic data.
It can be seen that how to reasonably configure PUCCH resources for transmitting ACK messages or NACK messages for terminal devices is a problem that needs to be solved at present.
Disclosure of Invention
The invention provides a resource allocation method and a resource allocation device, which are used for reasonably allocating PUCCH resources for transmitting ACK (acknowledgement character) messages or NACK (negative acknowledgement) messages for terminal equipment.
The first aspect of the present invention provides a resource allocation method, where the method includes:
the method comprises the steps that network equipment determines that the number of first terminal equipment is larger than or equal to a first preset threshold value, wherein the first terminal equipment is terminal equipment which is not allocated with uplink control channel resources in at least one terminal equipment, when the at least one terminal equipment is accessed to the network equipment, the network equipment allocates the at least one terminal equipment to at least one preset uplink control channel resource group, and each uplink control channel resource in the at least one preset uplink control channel resource group is used for sending a confirmation message or a negative confirmation message aiming at service data;
the network equipment determines a first uplink control channel resource group and a second uplink control channel resource group from the preset at least one uplink control channel resource group, wherein the first uplink control channel resource group is the uplink control channel resource group with the largest number of terminal equipment allocated in the preset at least one uplink control channel resource group, and the second uplink control channel resource group is the uplink control channel resource group with the smallest number of terminal equipment allocated in the preset at least one uplink control channel resource group;
and the network equipment reallocates a part of terminal equipment in the first uplink control channel resource group to the second uplink control channel resource group.
In the above technical solution, the network device may monitor, in real time, the number of terminal devices that are not allocated with uplink control channel resources, that is, monitor, in real time, whether resources in at least one uplink control channel resource group are sufficient, and when the resources are not sufficient (that is, the number of terminal devices that are not allocated with uplink control channel resources is greater than or equal to a first preset threshold), the network device may adjust the number of terminal devices allocated in each uplink control resource group, for example, allocate a part of terminal devices in the resource group that is the most allocated with terminal devices to the resource group that is the least allocated with terminal devices, so that the terminal devices that are not allocated with uplink control channel resources may use uplink control channel resources in other resource groups, thereby increasing flexibility of allocating uplink control resources, and making allocation of uplink control resources more reasonable.
Furthermore, the distribution of the uplink control resources is more reasonable, so that different service requirements can be met, the utilization rate of the uplink control resources can be improved, and the user experience is improved.
In a possible embodiment, before reallocating a part of terminal devices in the first set of uplink control channel resources to the second set of uplink control channel resources, the method further includes:
the network device acquires a first difference value between a first part of terminal devices and a second part of terminal devices, wherein the first part of terminal devices are terminal devices which are allocated to at least one second terminal device in the first uplink control channel resource group and have the data volume of service data larger than a preset data volume, and the second part of terminal devices are terminal devices which are allocated to the at least one second terminal device and have the data volume of the service data smaller than or equal to the preset data volume;
the network device obtains a second difference value between a third part of terminal devices and a fourth part of terminal devices, wherein the third part of terminal devices are terminal devices which are allocated to at least one third terminal device in the second uplink control channel resource group and have the data volume of the service data larger than the preset data volume, and the fourth part of terminal devices are terminal devices which have the data volume of the service data smaller than or equal to the preset data volume in the at least one third terminal device;
determining whether a difference between the first difference and the second difference is greater than or equal to a preset threshold;
when the difference between the first difference and the second difference is greater than or equal to the preset threshold, the network device reallocates a part of terminal devices in the first uplink control channel resource group to the second uplink control channel resource group.
In the above technical solution, when determining that the difference between terminal devices of different services satisfies a certain condition in the resource group with the largest number of terminal devices to be allocated and the resource group with the smallest number of terminal devices to be allocated, the network device adjusts the resource group in which the terminal device is located, so that the overhead of the network device can be reduced as much as possible on the premise of ensuring the service requirements.
In a possible embodiment, the reassigning a part of terminal devices in the first uplink control channel resource group to the second uplink control channel resource group includes:
the network equipment determines at least one fourth terminal equipment which is not allocated to the uplink control channel resources from at least one second terminal equipment which is allocated to the first uplink control channel resource group;
the network device reallocates the at least one fourth terminal device to the second set of uplink control channel resources.
In the technical scheme, the terminal equipment which is not allocated with the uplink control channel resource in the resource group with the maximum number of the allocated terminal equipment is adjusted to other resource groups, the control mode is simple, and the operation complexity of the network equipment can be reduced.
In a possible embodiment, the reassigning a part of terminal devices in the first uplink control channel resource group to the second uplink control channel resource group includes:
the network equipment determines at least one fourth terminal equipment which is not allocated to the uplink control channel resources from at least one second terminal equipment which is allocated to the first uplink control channel resource group;
and the network equipment reallocates the terminal equipment with the preset proportion in the at least one fourth terminal equipment to the second uplink control channel resource group.
In the above technical solution, only a part of terminal devices that are not allocated to uplink control channel resources in the resource group with the largest number of allocated terminal devices is adjusted to other resource groups, so that the number of terminal devices that need to be adjusted is reduced as much as possible on the premise of ensuring service requirements, and signaling overhead between the terminal devices and the network device can be reduced.
In a possible embodiment, the preset ratio is determined according to a load of the network device.
In a possible embodiment, the method further comprises:
and the network equipment sends an adjustment instruction to each terminal equipment in the part of terminal equipment, wherein the adjustment instruction is used for indicating that the uplink control resource group corresponding to each terminal equipment is adjusted from the first uplink control resource group to the second uplink control resource group.
A second aspect of the present invention provides a resource allocation apparatus, including:
a first determining module, configured to determine that the number of first terminal devices is greater than or equal to a first preset threshold, where the first terminal device is a terminal device that is not allocated with an uplink control channel resource in at least one terminal device, and when the at least one terminal device accesses the network device, the network device allocates the at least one terminal device to at least one preset uplink control channel resource group, where each uplink control channel resource in the at least one preset uplink control channel resource group is used to send an acknowledgement message or a negative acknowledgement message for service data;
a second determining module, configured to determine, from the preset at least one uplink control channel resource group, a first uplink control channel resource group and a second uplink control channel resource group, where the first uplink control channel resource group is an uplink control channel resource group with a largest number of terminal devices allocated in the preset at least one uplink control channel resource group, and the second uplink control channel resource group is an uplink control channel resource group with a smallest number of terminal devices allocated in the preset at least one uplink control channel resource group;
and the adjusting module is used for reallocating a part of terminal equipment in the first uplink control channel resource group to the second uplink control channel resource group.
In a possible embodiment, the adjusting module is further configured to:
acquiring a first difference value between a first part of terminal equipment and a second part of terminal equipment, wherein the first part of terminal equipment is the terminal equipment which is allocated to at least one second terminal equipment in the first uplink control channel resource group and has the data volume of service data larger than a preset data volume, and the second part of terminal equipment is the terminal equipment which is allocated to the at least one second terminal equipment and has the data volume of the service data smaller than or equal to the preset data volume;
acquiring a second difference value between a third part of terminal equipment and a fourth part of terminal equipment, wherein the third part of terminal equipment is the terminal equipment which is allocated to at least one third terminal equipment in the second uplink control channel resource group and has the data volume of the service data larger than the preset data volume, and the fourth part of terminal equipment is the terminal equipment which has the data volume of the service data in the at least one third terminal equipment smaller than or equal to the preset data volume;
determining whether a difference between the first difference and the second difference is greater than or equal to a preset threshold;
and when the difference between the first difference and the second difference is greater than or equal to the preset threshold, reallocating a part of terminal equipment in the first uplink control channel resource group to the second uplink control channel resource group.
In a possible embodiment, the adjusting module is specifically configured to:
determining at least one fourth terminal device which is not allocated to the uplink control channel resources from the at least one second terminal device allocated to the first uplink control channel resource group;
and reallocating the at least one fourth terminal device to the second uplink control channel resource group.
In a possible embodiment, the adjusting module is specifically configured to:
determining at least one fourth terminal device which is not allocated to the uplink control channel resources from the at least one second terminal device allocated to the first uplink control channel resource group;
and reallocating the terminal equipment with the preset proportion in the at least one fourth terminal equipment to the second uplink control channel resource group.
In a possible embodiment, the preset ratio is determined according to a load of the network device.
In a possible implementation manner, the apparatus further includes a sending module, where the sending module is configured to:
and sending an adjustment instruction to each terminal device in the part of terminal devices, where the adjustment instruction is used to instruct the uplink control resource group corresponding to each terminal device to be adjusted from the first uplink control resource group to the second uplink control resource group.
The third aspect of the present invention provides an apparatus for setting a threshold, comprising a processor and a transceiver, wherein the transceiver receives and transmits data under the control of the processor, the apparatus further comprises a memory, a preset program is stored in the memory, the processor reads the program in the memory, and the following processes are executed according to the program:
determining that the number of first terminal devices is greater than or equal to a first preset threshold, where the first terminal devices are terminal devices that are not allocated with uplink control channel resources in at least one terminal device, and when the at least one terminal device accesses the network device, the network device allocates the at least one terminal device to at least one preset uplink control channel resource group, where each uplink control channel resource in the at least one preset uplink control channel resource group is used to send an acknowledgement message or a negative acknowledgement message for service data;
determining a first uplink control channel resource group and a second uplink control channel resource group from the preset at least one uplink control channel resource group, wherein the first uplink control channel resource group is the uplink control channel resource group with the largest number of terminal devices allocated in the preset at least one uplink control channel resource group, and the second uplink control channel resource group is the uplink control channel resource group with the smallest number of terminal devices allocated in the preset at least one uplink control channel resource group;
and reallocating a part of terminal equipment in the first uplink control channel resource group to the second uplink control channel resource group.
A fourth aspect of the present invention provides a computer apparatus, comprising:
at least one processor, and,
a memory communicatively coupled to the at least one processor, a communication interface;
wherein the memory stores instructions executable by the at least one processor, the at least one processor performing the method of any one of the first aspect using the communication interface by executing the instructions stored by the memory.
A fifth aspect of the invention provides a computer readable storage medium having stored thereon computer instructions which, when run on a computer, cause the computer to perform the method of any of the first aspects.
Advantageous effects of the second to fifth aspects and their implementations described above reference may be made to the description of the advantageous effects of the method of the first aspect and its implementations.
Drawings
Fig. 1 is a network architecture diagram of an example of a wireless communication system provided by an embodiment of the present invention;
fig. 2 is a flowchart of a resource allocation method according to an embodiment of the present invention;
fig. 3 is a flowchart of an example of a resource allocation method according to an embodiment of the present invention;
fig. 4 is a block diagram of an example of a resource configuration apparatus according to an embodiment of the present invention;
fig. 5 is a block diagram of another example of a resource configuration apparatus according to an embodiment of the present invention.
Detailed Description
The invention provides a resource allocation method and a resource allocation device, which are used for reasonably allocating PUCCH resources for transmitting ACK (acknowledgement character) messages or NACK (negative acknowledgement) messages for terminal equipment.
In order to solve the technical problems, the general idea of the invention is as follows:
the network device may monitor, in real time, the number of terminal devices that are not allocated with uplink control channel resources, that is, monitor, in real time, whether resources in at least one uplink control channel resource group are sufficient, and when the resources are not sufficient (that is, the number of terminal devices that are not allocated with uplink control channel resources is greater than or equal to a first preset threshold), the network device may adjust the number of terminal devices allocated in each uplink control resource group, for example, allocate some terminal devices in the resource group in which the terminal devices are most allocated to the resource group in which the terminal devices are least allocated, so that the terminal devices that are not allocated with uplink control channel resources may use uplink control channel resources in other resource groups, thereby increasing flexibility of allocating uplink control resources, and making allocation of uplink control resources more reasonable.
In order to better understand the technical solutions of the present invention, the following detailed descriptions of the technical solutions of the present invention are provided with the accompanying drawings and the specific embodiments, and it should be understood that the specific features of the embodiments and the examples of the present invention are the detailed descriptions of the technical solutions of the present invention, and are not limitations of the technical solutions of the present invention, and the technical features of the embodiments and the examples of the present invention can be combined with each other without conflict.
First, an application scenario in the embodiment of the present invention is described.
Fig. 1 is a diagram illustrating an exemplary network architecture of a wireless communication system according to an embodiment of the present invention. As shown in fig. 1, the wireless communication system at least includes a network device and a plurality of terminal devices (in fig. 1, 2 terminal devices are taken as an example for explanation), each of the plurality of terminal devices communicates with the network device, where the terminal device may be a smart phone, a smart band, a notebook computer, etc., the network device may be a base station in a wireless communication system such as a Long Term Evolution (LTE) system, a New Radio (NR) system, etc., for example, a macro base station, a home base station, etc., and of course, the network device may also be a relay device or other devices that can communicate with the terminal devices through one or more cells on an air interface in an access network, which is not limited in the embodiment of the present invention.
In the NR system, when a network device transmits service data to a terminal device through a Physical Downlink Shared Channel (PDSCH), the terminal device needs to perform hybrid automatic repeat request (HARQ) feedback for the service data, for example, when the service data is correctly received, an ACK message is transmitted to the network device, or when the service data is unsuccessfully received, a NACK message is transmitted to the network device.
In the prior art, a terminal device uses a network device to configure PUCCH resources in multiple PUCCH resource groups in advance to send an ACK message or a NACK message, however, when the data volume of service data allocated to all terminal devices (for example, 56 terminal devices) in one PUCCH resource group is large, all terminal devices need to use PUCCH resources in set 0 to send feedback information, but a maximum of 32 PUCCH resources are included in set 0, which results in insufficient PUCCH resources and hinders transmission of service data.
In view of this, the embodiment of the present invention provides a resource allocation method, which is applied to a network device in a communication system as shown in fig. 1. Please refer to fig. 2, which is a flowchart of the method, and the flowchart describes the following:
s201, determining that the number of first terminal devices is greater than or equal to a first preset threshold, wherein the first terminal devices are terminal devices which are not allocated with uplink control channel resources in at least one terminal device;
s202, determining a first uplink control channel resource group and a second uplink control channel resource group from the preset at least one uplink control channel resource group, wherein the first uplink control channel resource group is the uplink control channel resource group with the largest number of terminal devices allocated in the preset at least one uplink control channel resource group, and the second uplink control channel resource group is the uplink control channel resource group with the smallest number of terminal devices allocated in the preset at least one uplink control channel resource group;
s203, reallocating a part of terminal devices in the first uplink control channel resource group to the second uplink control channel resource group.
Before step S201 is executed, a plurality of terminal devices in the communication system first access a network device. For example, each terminal device sends an access request to the network device, and then the network device feeds back access information to each terminal device, so that each terminal device accesses the network device according to the access information fed back by the network device.
As an example, the access information fed back by the network device may include information of the uplink control channel resource group allocated to each terminal device by the network device. In this embodiment of the application, the uplink control channel resource group may be a PUCCH resource group, or a narrowband band internet of things (PUCCH) resource group, or may be another uplink control channel resource group, which is not limited herein. For convenience of description, the uplink control channel resource group is taken as a PUCCH resource group as an example hereinafter. For example, after receiving an access request sent by a first terminal device (denoted as terminal device 1), the network device allocates the first terminal device to a first PUCCH resource group (denoted as PUCCH resource group 1), then sequentially allocates terminal devices 2 to 50 to PUCCH resource group 1, allocates terminal devices 51 to 100 to PUCCH resource group 2, allocates terminal devices 101 to 150 to PUCCH resource group 3, and allocates terminal devices 151 to 200 to PUCCH resource group 4. Alternatively, the network device may also randomly allocate a plurality of terminal devices to each PUCCH resource group, which is not described herein again.
It should be noted that, a manner of the network device allocating the terminal device to the PUCCH resource group is similar to that in the prior art, and is not described herein again.
After the terminal device accesses the network device, the network device may send the service data to the terminal device. Then, the network device may select a PUCCH resource matching the data amount of the service data from the PUCCH resource group in which each terminal device is located, and allocate the PUCCH resource to the terminal device for HARQ feedback. For example, when the network device transmits traffic data with a data volume of 10M to the terminal device 1 on the PDSCH, the network device determines to allocate one PUCCH resource in the set 0 of the PUCCH resource group 1 to the terminal device 1, and performs HARQ feedback. By adopting the same manner, when the network device sends the service data to other terminal devices on the PDSCH, the PUCCH resource matched with the data amount of the service data is allocated to each terminal device from the corresponding PUCCH resource group.
Since the number of PUCCH resources in each PUCCH resource group is limited, for example, the maximum number of PUCCH resources for carrying feedback information with a data amount greater than 2 bits is 32, when the number of terminal devices with a data amount greater than 10M allocated to the PUCCH resource group exceeds 32, the PUCCH resources in the PUCCH resource group are not sufficient.
In the embodiment of the present application, when a PUCCH resource is not enough, the network device needs to record the situation. For example, the network device may record, through the counter, that the PUCCH resource is not enough, and when the terminal device cannot be allocated the corresponding PUCCH resource, the counter is incremented by 1. For convenience of description, in this embodiment of the present application, if a network device cannot allocate a PUCCH resource for HARQ feedback to a certain terminal device, the terminal device is marked as a first terminal device, and the number of the first terminal device is the same as the value of the counter.
Then, the network device performs step S201, that is, determines that the number of the first terminal devices is greater than or equal to a first preset threshold.
The first preset threshold may be preconfigured by a technician according to experience, or may be configured by a network device according to service requirements, which is not limited herein. The network device may compare the size relationship between the number of the first terminal devices and the first preset threshold value according to a preset period, for example, compare every 5s to determine whether a value of a counter for recording that the PUCCH resource is not enough is greater than or equal to the first preset threshold value. Or, the network device may compare whether the value of the counter used for recording the insufficiency of the PUCCH resource is greater than or equal to the first preset threshold each time the value of the counter is updated.
As an example, the value of the first preset threshold may be set to 10, and when the network device determines that the value of the counter for recording the insufficient PUCCH resources is equal to 10, it determines that the number of the first terminal devices is equal to the first preset threshold.
After the step S201 is completed, the method in this embodiment of the application performs step S202, that is, determines a first uplink control channel resource group and a second uplink control channel resource group from the preset at least one uplink control channel resource group.
And when the network equipment determines that the number of the first terminal equipment is greater than or equal to the first preset threshold, the network equipment determines a first uplink control channel resource group with the largest number of terminal equipment and a second uplink control channel resource group with the smallest number of terminal equipment according to the number of the terminal equipment allocated in each uplink control channel resource group. For example, the network device determines that 50 terminal devices are allocated to PUCCH resource group 1, 40 terminal devices are allocated to PUCCH resource group 2, 35 terminal devices are allocated to PUCCH resource group 3, and 25 terminal devices are allocated to PUCCH resource group 4, so that the network device determines that the largest number of terminal devices are allocated as PUCCH resource group 1 and the smallest number of terminal devices are allocated as PUCCH resource group 4.
In other embodiments, before the network device performs step S202, it may be determined whether the distribution of the plurality of terminal devices accessing the network device in each PUCCH resource group is uniform, that is, whether the number of terminal devices included in each PUCCH resource group is similar, for example, the difference between the numbers of terminal devices in each two PUCCH resource groups does not exceed a preset value, and the preset value may be 5 or 10, and the like. When the difference between the number of terminal devices in any two PUCCH resource groups does not exceed the preset value, step S202 and step S203 may not be executed; when the difference value of the number of terminal devices in two PUCCH resource groups exceeds the preset value, step S202 is executed again. Thus, the operation amount of the network equipment can be reduced, and the load of the network equipment can be reduced.
After step S202 is completed, the method in this embodiment of the application performs step S203, that is, a part of terminal devices in the first uplink control channel resource group is reallocated to the second uplink control channel resource group.
In the embodiment of the present application, step S203 may include, but is not limited to, the following two implementation manners. These two implementations will be described below.
The first mode is as follows:
determining at least one fourth terminal device which is not allocated to the uplink control channel resources from the at least one second terminal device allocated to the first uplink control channel resource group;
and reallocating the at least one fourth terminal device to the second uplink control channel resource group.
Specifically, when the network device determines that PUCCH resource group 1 is the first uplink control channel resource group and PUCCH resource group 4 is the second uplink control channel resource group from the plurality of PUCCH resource groups, the network device first determines terminal devices that are not allocated with PUCCH resources from PUCCH resource group 1, for example, terminal devices 40 to terminal devices 50 that are not allocated with PUCCH resources from PUCCH resource group 1. Then, the network device allocates terminal devices 40 to 50 to PUCCH resource group 4.
The second mode is as follows:
determining at least one fourth terminal device which is not allocated to the uplink control channel resources from the at least one second terminal device allocated to the first uplink control channel resource group;
and reallocating the terminal equipment with the preset proportion in the at least one fourth terminal equipment to the second uplink control channel resource group.
Specifically, when the network device determines that PUCCH resource group 1 is the first uplink control channel resource group and PUCCH resource group 4 is the second uplink control channel resource group from the plurality of PUCCH resource groups, the network device first determines terminal devices that are not allocated with PUCCH resources from PUCCH resource group 1, for example, terminal devices 40 to terminal devices 50 that are not allocated with PUCCH resources from PUCCH resource group 1. Then, the network device determines to allocate some of the terminal devices 40 to 50 to the PUCCH resource group 4. The number of the part of terminal devices is determined according to a stored preset ratio, which may be set by a technician according to experience. Or, the preset ratio may be determined according to the load of the network device, for example, the number of terminal devices currently accessing the network device is large, and in order to avoid excessively increasing the load of the network device, the preset ratio may be set to a small value, which may be 40% or 50%; for another example, in order to meet the service requirement of the terminal device as much as possible, the preset ratio may be set to a larger value, which may be 60% or 80%, and of course, the value of the preset ratio may also be set in other manners, which is not limited herein. As an example, the preset ratio is 50%, so that the network device determines to allocate 5 of the terminal devices 40 to 50 to the PUCCH resource group 4.
Then, the network device may randomly select 5 terminal devices, for example, the terminal device 40 to the terminal device 44, from the terminal devices 40 to 50. Or, the network device may determine 5 terminal devices with higher priority or higher urgency according to the priority or urgency of the service data of each terminal device, for example, if the priorities of the service data of the terminal devices 40 to 50 are sequentially increased, the network device selects the terminal devices 46 to 50.
Finally, the network device reallocates 5 terminal devices selected from the terminal devices 40 to 50 to the PUCCH resource group 4.
In other embodiments, before the network device reallocates a part of the terminal devices in the first set of uplink control channel resources to the second set of uplink control channel resources, the network device may further perform the following steps:
acquiring a first difference value between a first part of terminal equipment and a second part of terminal equipment, wherein the first part of terminal equipment is the terminal equipment which is allocated to at least one second terminal equipment in the first uplink control channel resource group and has the data volume of service data larger than a preset data volume, and the second part of terminal equipment is the terminal equipment which is allocated to the at least one second terminal equipment and has the data volume of the service data smaller than or equal to the preset data volume;
acquiring a second difference value between a third part of terminal equipment and a fourth part of terminal equipment, wherein the third part of terminal equipment is the terminal equipment which is allocated to at least one third terminal equipment in the second uplink control channel resource group and has the data volume of the service data larger than the preset data volume, and the fourth part of terminal equipment is the terminal equipment which has the data volume of the service data in the at least one third terminal equipment smaller than or equal to the preset data volume;
and determining whether the difference between the first difference and the second difference is greater than or equal to a preset threshold, and when the difference between the first difference and the second difference is greater than or equal to the preset threshold, reallocating a part of terminal equipment in the first uplink control channel resource group to the second uplink control channel resource group.
Specifically, after the network device determines that the PUCCH resource group 1 is the first uplink control channel resource group and the PUCCH resource group 4 is the second uplink control channel resource group, the network device may determine a difference between a terminal device in the PUCCH resource group 1 and the PUCCH resource group 4, in which the data amount of the feedback information is greater than a preset data amount, and a terminal device in the PUCCH resource group 4, in which the data amount of the feedback information is less than or equal to the preset data amount, respectively, where the preset data amount may be 2 bits. It should be noted that, since the data amount of the feedback information of each terminal device is associated with the data amount of the service data sent by the network device to the terminal device, determining the data amount of the feedback information may also be understood as determining the amount of the service data sent by the network device to each terminal device.
For example, the network device determines that the number of terminal devices with the data amount of the feedback information being greater than 2 bits in the PUCCH resource group 1 is 50, and the number of terminal devices with the data amount of the feedback information being less than or equal to 2 bits is 0, and then determines that the first difference is 50. And the network equipment determines that the number of the terminal equipment with the feedback information data volume larger than 2 bits in the PUCCH resource group 4 is 15, and the number of the terminal equipment with the feedback information data volume smaller than or equal to 2 bits is 10, and then determines that the first difference value is 5. Further, the difference between the first difference and the second difference is determined to be 50-5-45. Assuming that the preset threshold is 10, since 45>10, the network device determines to allocate a part of terminal devices in the PUCCH resource group 1 to the PUCCH resource group 4. It should be noted that the preset threshold may be set by a technician according to a use requirement, and is not limited herein.
In the above technical solution, by comparing the size relationship between the difference between the first difference and the second difference and the preset threshold, it can be determined whether the terminal devices of different services (including the terminal device with a larger amount of service data or the terminal device with a smaller amount of service data) are uniformly distributed in the first uplink control channel resource group and the second uplink control channel resource group, for example, if most of the terminal devices in a certain uplink control channel resource group are terminal devices with a larger amount of service data, and most of the terminal devices in another uplink control channel resource group are terminal devices with a smaller amount of service data, the terminal devices of different services are represented to be non-uniformly distributed in the two uplink control channel resource groups. If the distribution is not uniform, the distribution of the terminal equipment in the two uplink control channel resource groups is adjusted, otherwise, the distribution is not adjusted, so that signaling and load overhead caused by frequently adjusting the distribution of the terminal equipment in the uplink control channel resource groups can be avoided.
After step S203 is completed, the method in this embodiment of the application may further perform step S204, that is, send an adjustment instruction to each terminal device in the part of terminal devices, where the adjustment instruction is used to instruct that the uplink control channel resource group corresponding to each terminal device is adjusted from the first uplink control channel resource group to the second uplink control channel resource group.
After the network device determines to adjust the uplink control channel resource group where the terminal device is located, the network device can notify the terminal device through the adjustment indication to ensure the information synchronization of the network device and the terminal device. The adjustment indication may be Radio Resource Control (RRC) signaling or other signaling, which is not limited herein. It should be noted that step S204 is an optional step, i.e., it is not necessary to perform it.
In addition, it should be noted that the method shown in fig. 2 is triggered repeatedly, and if the number of the first terminal devices after the adjustment is still greater than the first preset threshold, the above steps are repeated until the number of the first terminal devices is still less than the first preset threshold.
In the above technical solution, the network device may monitor, in real time, the number of terminal devices that are not allocated with uplink control channel resources, that is, monitor, in real time, whether resources in at least one uplink control channel resource group are sufficient, and when the resources are not sufficient (that is, the number of terminal devices that are not allocated with uplink control channel resources is greater than or equal to a first preset threshold), the network device may adjust the number of terminal devices allocated in each uplink control resource group, for example, allocate a part of terminal devices in the resource group that is the most allocated with terminal devices to the resource group that is the least allocated with terminal devices, so that the terminal devices that are not allocated with uplink control channel resources may use uplink control channel resources in other resource groups, thereby increasing flexibility of allocating uplink control resources, and making allocation of uplink control resources more reasonable.
Referring to fig. 3, a specific example of the resource allocation method shown in fig. 2 will be described. In fig. 3, the network device is divided into 3 functional modules, which are a PUCCH resource allocation module, a PUCCH resource usage module, and a PUCCH resource adjustment module. The PUCCH resource allocation module is responsible for allocating PUCCH resources, the PUCCH related resources are divided into N groups, and each group is configured with 4 sets. The terminal devices are allocated into N groups when they are accessed, and the configuration is notified to the terminal devices through RRC signaling. The PUCCH resource using module is responsible for providing PUCCH resources for the terminal equipment when the terminal equipment executes PDSCH service. And the PUCCH resource adjusting module is used for adjusting the PUCCH resource group where the terminal equipment is located. It should be noted that, the terminal device performs PDSCH service, and it can be understood that the network device transmits service data to the terminal device on the PDSCH.
S301, when a plurality of terminal devices are accessed, a PUCCH resource allocation module allocates the plurality of terminal devices to N PUCCH groups;
s302, the PUCCH resource using module informs the PUCCH resource adjusting module that the PUCCH resource is limited in use;
when the terminal device performs PDSCH service, if the PUCCH resource using module finds that PUCCH resources cannot be allocated to the terminal device, that is, the PUCCH resources are not enough, the PUCCH resource using module records the situation through the counter, and after the count value of the counter reaches a threshold, sends a limited notification to the PUCCH resource adjusting module, and simultaneously carries information of the terminal device executing PDSCH service in the limited notification, which may include, for example, data volume of PDSCH service of the terminal device.
S303, checking whether the distribution of the terminal equipment executing the PDSCH service in the PUCCH group is uniform by the PUCCH resource adjusting module, if so, exiting the process, and if not, executing the steps S304-S306;
s304, the PUCCH resource adjusting module determines the PUCCH group with the most terminal equipment for executing the PDSCH service and records the PUCCH group as the group 1, and determines the PUCCH group with the least terminal equipment for executing the PDSCH service and records the PUCCH group as the group 2;
s305, comparing the difference of different PDSCH services in the group 1 with the difference of different PDSCH services in the group 2 by the PUCCH resource adjusting module, and judging whether the difference exceeds a threshold, if so, executing the step S306, otherwise, exiting the process;
s306, the PUCCH resource adjusting module sends a notice to the PUCCH resource allocating module to request the PUCCH resource allocating module to reallocate the terminal equipment with a specific proportion in the terminal equipment for executing the PDSCH service in the group 1 to the group 2;
s307, the PUCCH resource allocation module notifies the adjusted terminal device through RRC signaling.
A second aspect of the present invention provides a resource configuration apparatus, where the resource configuration apparatus may be a network device in a wireless communication system such as an LTE system and an NR system, for example, a macro base station, a home base station, and the like, and may also be an apparatus in the network device. Referring to fig. 4, a schematic structural diagram of a resource allocation apparatus according to an embodiment of the present invention is shown, where the resource allocation apparatus includes:
a first determining module 401, configured to determine that the number of first terminal devices is greater than or equal to a first preset threshold, where the first terminal device is a terminal device that is not allocated with an uplink control channel resource in at least one terminal device, and when the at least one terminal device accesses the network device, the network device allocates the at least one terminal device to at least one preset uplink control channel resource group, where each uplink control channel resource in the at least one preset uplink control channel resource group is used to send an acknowledgement message or a negative acknowledgement message for service data;
a second determining module 402, configured to determine a first uplink control channel resource group and a second uplink control channel resource group from the preset at least one uplink control channel resource group, where the first uplink control channel resource group is an uplink control channel resource group with a largest number of terminal devices allocated in the preset at least one uplink control channel resource group, and the second uplink control channel resource group is an uplink control channel resource group with a smallest number of terminal devices allocated in the preset at least one uplink control channel resource group;
an adjusting module 403, configured to reallocate a part of terminal devices in the first uplink control channel resource group to the second uplink control channel resource group.
Since the resource allocation apparatus provided in the second aspect of the present invention is proposed under the same concept as the resource allocation method provided in the first aspect of the present invention, various variations and specific embodiments of the resource allocation method in the foregoing embodiments of fig. 2 to fig. 3 are also applicable to the resource allocation apparatus of this embodiment, and through the foregoing detailed description of the resource allocation method, a person skilled in the art can clearly know the implementation process of the resource allocation apparatus in this embodiment, so for the brevity of the description, detailed description is not repeated here.
A third aspect of the present invention provides a resource allocation apparatus, where the resource allocation apparatus may be a network device in a wireless communication system such as an LTE system or an NR system, for example, a macro base station, a home base station, or the like, and may also be an apparatus in the network device. Referring to fig. 5, a schematic structural diagram of a resource allocation apparatus according to an embodiment of the present invention is shown, where the resource allocation apparatus includes:
a processor 501, configured to obtain the number of the first terminal devices through the transceiver 502, determine, after determining that the number of the first terminal devices is greater than or equal to a first preset threshold, a first uplink control channel resource group and a second uplink control channel resource group from the preset at least one uplink control channel resource group, and reallocate a part of the terminal devices in the first uplink control channel resource group to the second uplink control channel resource group.
Optionally, the processor 501 may be a central processing unit, an Application Specific Integrated Circuit (ASIC), one or more Integrated circuits for controlling program execution, a hardware Circuit developed by using a Field Programmable Gate Array (FPGA), or a baseband processor.
Optionally, processor 501 may include at least one processing core.
Optionally, the electronic device further includes a Memory 503, and the Memory 503 may include a Read Only Memory (ROM), a Random Access Memory (RAM), and a disk Memory. The memory 503 is used for storing data required by the processor 501 during operation. The number of the memory 503 is one or more.
Since the resource allocation apparatus provided in the third aspect of the present invention is proposed under the same concept as the resource allocation method provided in the first aspect of the present invention, various variations and specific embodiments of the resource allocation method in the foregoing embodiments of fig. 2 to fig. 3 are also applicable to the resource allocation apparatus of this embodiment, and a person skilled in the art can clearly know an implementation process of the resource allocation apparatus in this embodiment through the foregoing detailed description of the resource allocation method, so that details are not described here for brevity of description.
A fourth aspect of the present invention provides a computer apparatus, comprising:
at least one processor, and,
a memory communicatively coupled to the at least one processor, a communication interface;
wherein the memory stores instructions executable by the at least one processor, and the at least one processor performs the method in the embodiments shown in fig. 2-3 using the communication interface by executing the instructions stored by the memory.
A fifth aspect of the present invention provides a computer-readable storage medium, characterized in that the computer-readable storage medium stores computer instructions which, when run on a computer, cause the computer to perform the method in the embodiments as shown in fig. 2-3.
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, 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.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations 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 include such modifications and variations.
Claims (13)
1. A method for resource allocation, the method comprising:
the method comprises the steps that network equipment determines that the number of first terminal equipment is larger than or equal to a first preset threshold value, wherein the first terminal equipment is terminal equipment which is not allocated with uplink control channel resources in at least one terminal equipment, when the at least one terminal equipment is accessed to the network equipment, the network equipment allocates the at least one terminal equipment to at least one preset uplink control channel resource group, and each uplink control channel resource in the at least one preset uplink control channel resource group is used for sending a confirmation message or a negative confirmation message aiming at service data;
the network equipment determines a first uplink control channel resource group and a second uplink control channel resource group from the preset at least one uplink control channel resource group, wherein the first uplink control channel resource group is the uplink control channel resource group with the largest number of terminal equipment allocated in the preset at least one uplink control channel resource group, and the second uplink control channel resource group is the uplink control channel resource group with the smallest number of terminal equipment allocated in the preset at least one uplink control channel resource group;
and the network equipment reallocates a part of terminal equipment in the first uplink control channel resource group to the second uplink control channel resource group.
2. The method of claim 1, wherein prior to reallocating a portion of terminal devices in the first set of uplink control channel resources to the second set of uplink control channel resources, the method further comprises:
the network device acquires a first difference value between a first part of terminal devices and a second part of terminal devices, wherein the first part of terminal devices are terminal devices which are allocated to at least one second terminal device in the first uplink control channel resource group and have the data volume of service data larger than a preset data volume, and the second part of terminal devices are terminal devices which have the data volume of the service data in the at least one second terminal device smaller than or equal to the preset data volume;
the network device obtains a second difference value between a third part of terminal devices and a fourth part of terminal devices, wherein the third part of terminal devices are terminal devices which are allocated to at least one third terminal device in the second uplink control channel resource group and have the data volume of the service data larger than the preset data volume, and the fourth part of terminal devices are terminal devices which have the data volume of the service data smaller than or equal to the preset data volume in the at least one third terminal device;
determining whether a difference between the first difference and the second difference is greater than or equal to a preset threshold;
when the difference between the first difference and the second difference is greater than or equal to the preset threshold, the network device reallocates a part of terminal devices in the first uplink control channel resource group to the second uplink control channel resource group.
3. The method of claim 2, wherein re-allocating a portion of terminal devices in the first set of uplink control channel resources to the second set of uplink control channel resources comprises:
the network equipment determines at least one fourth terminal equipment which is not allocated to the uplink control channel resources from at least one second terminal equipment which is allocated to the first uplink control channel resource group;
the network device reallocates the at least one fourth terminal device to the second set of uplink control channel resources.
4. The method of claim 2, wherein re-allocating a portion of terminal devices in the first set of uplink control channel resources to the second set of uplink control channel resources comprises:
the network equipment determines at least one fourth terminal equipment which is not allocated to the uplink control channel resources from at least one second terminal equipment which is allocated to the first uplink control channel resource group;
and the network equipment reallocates the terminal equipment with the preset proportion in the at least one fourth terminal equipment to the second uplink control channel resource group.
5. The method of claim 4, wherein the predetermined ratio is determined according to a load of the network device.
6. The method according to any one of claims 1-5, further comprising:
and the network equipment sends an adjustment instruction to each terminal equipment in the part of terminal equipment, wherein the adjustment instruction is used for indicating that the uplink control channel resource group corresponding to each terminal equipment is adjusted from the first uplink control channel resource group to the second uplink control channel resource group.
7. A resource allocation apparatus, comprising:
a first determining module, configured to determine that the number of first terminal devices is greater than or equal to a first preset threshold, where the first terminal device is a terminal device that is not allocated with an uplink control channel resource in at least one terminal device, and when the at least one terminal device accesses a network device, the network device allocates the at least one terminal device to at least one preset uplink control channel resource group, where each uplink control channel resource in the at least one preset uplink control channel resource group is used to send an acknowledgement message or a negative acknowledgement message for service data;
a second determining module, configured to determine, from the preset at least one uplink control channel resource group, a first uplink control channel resource group and a second uplink control channel resource group, where the first uplink control channel resource group is an uplink control channel resource group with a largest number of terminal devices allocated in the preset at least one uplink control channel resource group, and the second uplink control channel resource group is an uplink control channel resource group with a smallest number of terminal devices allocated in the preset at least one uplink control channel resource group;
and the adjusting module is used for reallocating a part of terminal equipment in the first uplink control channel resource group to the second uplink control channel resource group.
8. The apparatus of claim 7, wherein the adjustment module is further configured to:
acquiring a first difference value between a first part of terminal equipment and a second part of terminal equipment, wherein the first part of terminal equipment is the terminal equipment which is allocated to at least one second terminal equipment in the first uplink control channel resource group and has the data volume of service data larger than a preset data volume, and the second part of terminal equipment is the terminal equipment which has the data volume of the service data in the at least one second terminal equipment smaller than or equal to the preset data volume;
acquiring a second difference value between a third part of terminal equipment and a fourth part of terminal equipment, wherein the third part of terminal equipment is the terminal equipment which is allocated to at least one third terminal equipment in the second uplink control channel resource group and has the data volume of the service data larger than the preset data volume, and the fourth part of terminal equipment is the terminal equipment which has the data volume of the service data in the at least one third terminal equipment smaller than or equal to the preset data volume;
determining whether a difference between the first difference and the second difference is greater than or equal to a preset threshold;
and when the difference between the first difference and the second difference is greater than or equal to the preset threshold, reallocating a part of terminal equipment in the first uplink control channel resource group to the second uplink control channel resource group.
9. The apparatus of claim 8, wherein the adjustment module is specifically configured to:
determining at least one fourth terminal device which is not allocated to the uplink control channel resources from the at least one second terminal device allocated to the first uplink control channel resource group;
and reallocating the at least one fourth terminal device to the second uplink control channel resource group.
10. The apparatus of claim 8, wherein the adjustment module is specifically configured to:
determining at least one fourth terminal device which is not allocated to the uplink control channel resources from the at least one second terminal device allocated to the first uplink control channel resource group;
and reallocating the terminal equipment with the preset proportion in the at least one fourth terminal equipment to the second uplink control channel resource group.
11. The apparatus according to any one of claims 7-10, wherein the apparatus further comprises a transmitting module configured to:
and sending an adjustment instruction to each terminal device in the part of terminal devices, where the adjustment instruction is used to instruct the uplink control channel resource group corresponding to each terminal device to be adjusted from the first uplink control channel resource group to the second uplink control channel resource group.
12. A computer device, the computer device comprising:
at least one processor, and
a memory communicatively coupled to the at least one processor, a communication interface;
wherein the memory stores instructions executable by the at least one processor, the at least one processor performing the method of any one of claims 1-6 with the communications interface by executing the instructions stored by the memory.
13. A computer-readable storage medium having stored thereon computer instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1-6.
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