CN114928891B

CN114928891B - Base station, resource allocation and PDCCH information processing method, device, equipment and medium

Info

Publication number: CN114928891B
Application number: CN202210659032.7A
Authority: CN
Inventors: 张志荣; 李志军; 李鹏; 张新; 谢伟良
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2022-06-09
Filing date: 2022-06-09
Publication date: 2023-11-07
Anticipated expiration: 2042-06-09
Also published as: CN114928891A

Abstract

The application provides a base station, a method, a device, equipment and a medium for resource allocation and PDCCH information processing, and relates to the technical field of communication. The method comprises the following steps: acquiring service demand parameters of a first network cell; in the time-frequency resources of the mixed PDCCH, the first time-frequency resources corresponding to the service demand parameters are allocated for the first network cell, wherein the mixed PDCCH is the PDCCH multiplexed by the first network cell and the second network cell; distributing second time-frequency resources except the first time-frequency resources in the time-frequency resources of the mixed PDCCH to a second network cell so as to map PDCCH information of the second network cell compressed according to a preset compression ratio into the second time-frequency resources; the first network cell is a cell with high resource priority in the LTE cell and the NR cell, and the second network cell is a cell with low resource priority in the LTE cell and the NR cell. According to the embodiment of the application, the time-frequency resource utilization rate of the downlink physical channel can be improved.

Description

Base station, resource allocation and PDCCH information processing method, device, equipment and medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method, an apparatus, a device, and a medium for processing base station, resource allocation, and PDCCH information.

Background

In order to achieve smooth evolution of the fourth generation mobile communication technology (4th Generation Mobile Communication Technology,4G) to the fifth generation mobile communication technology (5th Generation Mobile Communication Technology,5G), the dynamic spectrum sharing (Dynamic Spectrum Sharing, DSS) technology is one of the research directions of communication technologies. DSS, a technology that allows long term evolution (Long Term Evolution, LTE) of 4G and New Radio, NR, of 5G to share the same spectrum.

However, in the spectrum sharing scenario, the existing time-frequency resource allocation scheme often results in lower time-frequency resource utilization of the downlink physical channel.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the application and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

The application provides a base station, a method, a device, equipment and a medium for resource allocation and PDCCH information processing, which at least overcome the problem of low time-frequency resource utilization rate of a downlink physical channel to a certain extent.

Other features and advantages of the application will be apparent from the following detailed description, or may be learned by the practice of the application.

According to one aspect of the present application, there is provided a method for allocating time-frequency resources, including:

acquiring service demand parameters of a first network cell;

in the time-frequency resources of the mixed PDCCH, the first time-frequency resources corresponding to the service demand parameters are allocated for the first network cell, wherein the mixed PDCCH is the PDCCH multiplexed by the first network cell and the second network cell;

distributing second time-frequency resources except the first time-frequency resources in the time-frequency resources of the mixed PDCCH to a second network cell so as to map PDCCH information of the second network cell compressed according to a preset compression ratio into the second time-frequency resources;

the first network cell is a cell with high resource priority in the LTE cell and the NR cell, and the second network cell is a cell with low resource priority in the LTE cell and the NR cell.

In one embodiment, the time-frequency resource of the hybrid PDCCH is the time-frequency resource of the first N symbols of the downlink physical channel in the time domain, the time-frequency resource of M symbols in the time-frequency resource of the first N symbols is a dedicated time-frequency resource of the first network cell, the time-frequency resource of the remaining N-M symbols is a shared time-frequency resource of the first network cell and the second network cell, where N is a positive integer greater than or equal to 2, and M is a positive integer less than N;

Allocating first time-frequency resources corresponding to the service demand parameters for the first network cell, including:

under the condition that the service demand parameter is smaller than or equal to a first service demand threshold value, determining a special time-frequency resource in the time-frequency resources of the mixed PDCCH as a first time-frequency resource; allocating dedicated time-frequency resources for the first network cell;

and allocating a second time-frequency resource other than the first time-frequency resource among the time-frequency resources of the hybrid PDCCH to a second network cell, comprising:

among the time-frequency resources of the mixed PDCCH, determining the shared time-frequency resource as a second time-frequency resource; and distributing the shared time-frequency resource to the second network cell.

Under the condition that the service demand parameter is larger than a first service demand threshold value, determining at least one time-frequency resource unit corresponding to the service demand parameter in the frequency domain direction of the shared time-frequency resource; the method comprises the steps that a dedicated time-frequency resource and at least one time-frequency resource unit are used as a first time-frequency resource together; allocating dedicated time-frequency resources and at least one time-frequency resource unit to a first network cell;

in the shared time-frequency resource of the mixed PDCCH, the rest time-frequency resource units except at least one time-frequency resource unit are determined to be second time-frequency resources; and allocating the remaining time-frequency resource units to the second network cell.

In one embodiment, determining at least one time-frequency resource unit corresponding to a traffic demand parameter in a frequency domain direction of a shared time-frequency resource includes:

determining a first time-frequency resource demand corresponding to the business demand parameter of the first network cell based on a first corresponding relation between the business demand parameter and the time-frequency resource demand;

and in the frequency domain direction of the shared time-frequency resource, determining a time-frequency resource unit of the first time-frequency resource demand, and taking the time-frequency resource unit of the first resource demand as at least one time-frequency resource unit.

In one embodiment, the service requirement parameter of the first network cell is a time-frequency resource requirement of the first network cell;

the method further comprises the steps of:

acquiring a plurality of historical PDSCH resource amounts, wherein each historical PDSCH resource amount is the time-frequency resource occupation amount of the historical PDSCH of the first network cell;

and estimating the time-frequency resource demand of the first network cell based on the plurality of historical PDSCH resource quantities.

In one embodiment, the method further comprises:

determining a ratio of a resource amount of the second time-frequency resource to a time-frequency resource reference occupation amount of the second network cell;

the ratio is determined as a preset compression ratio.

In one embodiment, the method further comprises:

acquiring service demand parameters of a second network cell;

determining a second time-frequency resource demand corresponding to the service demand parameter of the second network cell based on a second corresponding relation between the service demand parameter and the time-frequency resource demand;

determining a ratio of a resource amount of the second time-frequency resource to a second time-frequency resource demand amount corresponding to the service demand parameter of the second network cell;

the ratio is determined as a preset compression ratio.

According to another aspect of the present application, there is provided a method for processing PDCCH information, including:

Acquiring first PDCCH information corresponding to a first network cell and second PDCCH information corresponding to a second network cell, wherein the first network cell is a cell with high resource priority in an LTE cell and an NR cell, and the second network cell is a cell with low resource priority in the LTE cell and the NR cell;

acquiring a first time-frequency resource corresponding to a first network cell and a second time-frequency resource corresponding to a second network cell, wherein the first time-frequency resource is a time-frequency resource corresponding to a service demand parameter of the first network cell in time-frequency resources of a mixed PDCCH, the second time-frequency resource is the rest resources except the first time-frequency resource in the mixed PDCCH, and the mixed PDCCH is a PDCCH multiplexed by the PDCCH of the first network cell and the PDCCH of the second network cell;

mapping the first PDCCH information to a first time-frequency resource;

and compressing the second PDCCH information according to a preset compression ratio, and mapping the compressed second PDCCH information to a second time-frequency resource.

In one embodiment, the second PDCCH information is downlink control information DCI information;

mapping the compressed second PDCCH information to a second time-frequency resource, comprising:

acquiring a Control Channel Element (CCE) aggregation level before compression;

Calculating the product of the CCE aggregation level before compression and a preset compression ratio;

determining the product as a compressed CCE aggregation level;

and mapping the compressed DCI information to a second time-frequency resource according to the compressed CCE aggregation level.

According to still another aspect of the present application, there is provided an apparatus for allocating time-frequency resources, including:

the parameter acquisition module is used for acquiring the service demand parameters of the first network cell;

the first resource allocation module is used for allocating first time-frequency resources corresponding to the service demand parameters to the first network cell in the time-frequency resources of the mixed PDCCH, wherein the mixed PDCCH is the PDCCH multiplexed by the first network cell and the second network cell;

the second resource allocation module is used for allocating second time-frequency resources except the first time-frequency resources in the time-frequency resources of the mixed PDCCH to the second network cell so as to map the PDCCH information of the second network cell compressed according to the preset compression ratio into the second time-frequency resources;

According to still another aspect of the present application, there is provided a PDCCH information processing apparatus including:

The information acquisition module is used for acquiring first PDCCH information corresponding to a first network cell and second PDCCH information corresponding to a second network cell, wherein the first network cell is a cell with high resource priority in an LTE cell and an NR cell, and the second network cell is a cell with low resource priority in the LTE cell and the NR cell;

the resource acquisition module is used for acquiring a first time-frequency resource corresponding to the first network cell and acquiring a second time-frequency resource corresponding to the second network cell, wherein the first time-frequency resource is a time-frequency resource corresponding to a service demand parameter of the first network cell in the time-frequency resources of the mixed PDCCH, the second time-frequency resource is the rest resources except the first time-frequency resource in the mixed PDCCH, and the mixed PDCCH is a PDCCH multiplexed by the PDCCH of the first network cell and the PDCCH of the second network cell;

a first resource mapping module, configured to map first PDCCH information to a first time-frequency resource;

and the second resource mapping module is used for compressing the second PDCCH information according to a preset compression ratio and mapping the compressed second PDCCH information to a second time-frequency resource.

According to still another aspect of the present application, there is provided a base station comprising:

The time-frequency resource allocation device; the method comprises the steps of,

processing device of PDCCH information

According to still another aspect of the present application, there is provided an electronic apparatus including: a processor; and a memory for storing executable instructions of the processor; the processor is configured to execute the above-mentioned allocation method of time-frequency resources or the processing method of PDCCH information by executing the executable instructions.

According to still another aspect of the present application, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the above-described time-frequency resource allocation method or PDCCH information processing method.

According to still another aspect of the present application, there is provided a computer program product comprising a computer program, wherein the computer program, when executed by a processor, implements the above-mentioned method for allocating time-frequency resources or method for processing PDCCH information.

The base station, the resource allocation and the PDCCH information processing method, the device, the equipment and the medium provided by the embodiment of the application can allocate enough first time-frequency resources for the PDCCH of the first network cell according to the service demand of the first network cell with higher resource priority in the time-frequency resources of the mixed PDCCH multiplexed by the first network cell and the second network cell, and allocate the rest time-frequency resources except the first time-frequency resources in the mixed PDCCH to the second network cell, so that the allocation share of the mixed PDCCH between the first network cell and the second network cell can be flexibly adjusted according to the service demand of the first network cell, thereby avoiding the time-frequency resource waste caused by the fixed allocation share and improving the time-frequency resource utilization rate.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application. It is evident that the drawings in the following description are only some embodiments of the present application and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 is a schematic diagram showing an allocation scheme of time-frequency resources of a downlink physical channel in the related art;

fig. 2 is a schematic diagram showing an allocation scheme of time-frequency resources of another downlink physical channel in the related art;

fig. 3 is a schematic diagram showing a time-frequency resource of a downlink physical channel in 1 time slot according to an embodiment of the present application;

fig. 4 is a flow chart illustrating a method for allocating time-frequency resources in an embodiment of the present application;

fig. 5 is a flow chart illustrating another method for allocating time-frequency resources according to an embodiment of the present application;

fig. 6 is a schematic diagram illustrating an allocation scheme of time-frequency resources of an exemplary downlink physical channel according to an embodiment of the present application;

Fig. 7 is a schematic diagram illustrating another exemplary allocation scheme of time-frequency resources of a downlink physical channel according to an embodiment of the present application;

fig. 8 is a flow chart illustrating another method for allocating time-frequency resources according to an embodiment of the present application;

fig. 9 is a schematic diagram illustrating an allocation scheme of time-frequency resources of another exemplary downlink physical channel according to an embodiment of the present application;

fig. 10 is a flow chart illustrating an exemplary method for allocating time-frequency resources according to an embodiment of the present application;

fig. 11 is a flowchart illustrating a method for processing PDCCH information in an embodiment of the present application;

fig. 12 is a schematic diagram of a time-frequency resource allocation apparatus according to an embodiment of the present application;

fig. 13 is a schematic diagram of a device for processing PDCCH information in an embodiment of the present application;

fig. 14 is a schematic structural diagram of an exemplary base station according to an embodiment of the present application; and

fig. 15 shows a block diagram of an electronic device in an embodiment of the application.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of the present application and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software or in one or more hardware modules or integrated circuits or in different networks and/or processor devices and/or microcontroller devices.

It should be understood that the various steps recited in the method embodiments of the present application may be performed in a different order and/or performed in parallel. Furthermore, method embodiments may include additional steps and/or omit performing the illustrated steps. The scope of the application is not limited in this respect.

It should be noted that the terms "first," "second," and the like herein are merely used for distinguishing between different devices, modules, or units and not for limiting the order or interdependence of the functions performed by such devices, modules, or units.

It should be noted that references to "one", "a plurality" and "a plurality" in this disclosure are intended to be illustrative rather than limiting, and those skilled in the art will appreciate that "one or more" is intended to be construed as "one or more" unless the context clearly indicates otherwise.

In order to realize the evolution of the 4G technology to the 5G technology, the DSS technology is widely used.

In DSS technology, a 4G LTE cell and a 5G NR cell tend to multiplex the same spectrum. In the spectrum multiplexing technology, a base station needs to send downlink information to an LTE cell and a 5G NR cell by using a downlink physical channel. Therefore, how to increase the time-frequency resource utilization of the downlink physical channel has become one of the research directions.

In a related art, a time-frequency resource allocation scheme suitable for LTE users with a large number of NR users is provided. Fig. 1 is a schematic diagram illustrating a time-frequency resource allocation scheme of a downlink physical channel in the related art.

As shown in fig. 1, the LTE PDCCH is configured in the first 2 symbols of each slot (slot), and occupies the full frequency band of the time-frequency resource within the first 2 symbols in the frequency domain. The NR PDCCH is configured in the 3 rd symbol of each slot, and occupies a time-frequency resource portion within the 3 rd symbol in the frequency domain.

In another related art, a time-frequency resource allocation scheme applicable to a small number of LTE users and a large number of NR users is provided. Fig. 2 is a schematic diagram illustrating an allocation scheme of time-frequency resources of another downlink physical channel in the related art.

As shown in fig. 2, the LTE PDCCH is configured in the 1 st symbol of each slot, and occupies the full frequency band of the time-frequency resource in the 1 st symbol in the frequency domain direction. The NR PDCCH is configured in the 2-3 rd symbol and occupies part of the time-frequency resource within the 2=3 symbols in the frequency domain.

However, the above-described resource allocation scheme suffers from at least one of the following problems: the LTE PDCCH and the NR PDCCH occupy 3 symbols in total, the LTE PDCCH and the NR PDCCH are time-division multiplexed, and the occupation amount of the LTE PDCCH and the NR PDCCH on time resources is fixed, which cannot meet the service requirements in the actual communication scenario. For example, when the traffic volume of the NR cell is large, the LTE PDCCH time-frequency resource cannot be used for the NR PDCCH, resulting in LTE PDCCH time-frequency resource waste. And, there are also effects such as reduced DSS performance, limited number of NR users connected to the NR cell, limited capacity of downlink physical channels such as NR PDCCH, and poor network user experience.

In order to solve at least one of the above problems, the embodiment of the present application provides a technical solution, so as to allocate a sufficient amount of first time-frequency resources for a PDCCH of a first network cell according to a service demand of the first network cell with a higher resource priority in time-frequency resources of a mixed PDCCH multiplexed by the first network cell and the second network cell, and allocate the remaining time-frequency resources except the first time-frequency resources in the mixed PDCCH to the second network cell, thereby flexibly adjusting allocation shares of the mixed PDCCH between the first network cell and the second network cell according to the service demand of the first network cell, avoiding time-frequency resource waste caused by allocation share fixation, and improving time-frequency resource utilization rate. The technical scheme provided by the embodiment of the application can be applied to DSS scenes, and can be applied to specific scenes with low frequency bands and small bandwidths by way of example. For example, the low frequency band may be 700M (mega), 800M, or 900M. The small bandwidth may be in a specific scenario of 10M, 15M, 20M.

Before starting to describe the technical scheme provided by the embodiment of the application, technical terms related to the embodiment of the application are described.

(1) And the downlink physical channel can transmit the wireless channel of the downlink data transmitted to the terminal equipment by the base station on specific frequency domain, time domain and space domain on the basis of determining the coding interleaving mode and the modulation mode.

Illustratively, the downlink physical channels may include, but are not limited to: PDCCH, PDSCH, etc.

(2) A physical downlink control channel (Physical Downlink Control Channel, PDCCH) for carrying scheduling and other control information for transmission of control signaling for uplink and downlink scheduling, power control, resource allocation, etc.

For example, the PDCCH may transmit downlink control information (Downlink Control Information, DCI). The DCI may include scheduling information of PDSCH and PUSCH transmission resources, uplink power control information, a Slot (Slot) format indication, PRB used by a User Equipment (UE), orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbols, and other information.

(3) A physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) for carrying downlink user data.

(4) A control channel element (Control Channel Element, CCE), which may be a resource unit of PDCCH transmission. One CCE may include a plurality of Resource Elements (REs), where RE is a minimum time-frequency Resource unit.

For example, DCI for each user may be transmitted on one or more consecutive CCEs, that is, PDCCH channels, and resources allocated to each individual DCI are in CCEs.

(5) CCE aggregation level, i.e. the number of CCEs occupied by one PDCCH message. For example, if the CCE aggregation level of one PDCCH channel is 4, 4 CCEs need to be occupied to characterize the PDCCH information.

Having introduced the above concepts, the time-frequency resources related to the embodiments of the present application will be described next.

Fig. 3 shows a schematic diagram of a time-frequency resource of a downlink physical channel within 1 time slot according to an embodiment of the present application. As shown in fig. 3, the time-frequency resource of the downlink physical channel within 1 slot may include a plurality of symbols in a time domain direction, and each symbol may include a plurality of REs in a frequency domain direction.

In one example, the first 2 symbols of the time-frequency resource of the downlink physical channel within 1 slot may be allocated to the PDCCH, that is, PDCCH information may be mapped into the first 2 symbols of one slot. And, the 3 rd to 14 th symbols may be allocated to the PDSCH, that is, downlink data scheduled by the PDCCH may be mapped into the 3 rd to 14 th symbols.

After the time-frequency resources of the downlink physical channel in 1 time slot are initially known, the time-frequency resource allocation scheme provided by the embodiment of the application is described below with reference to the drawings and the embodiments.

The embodiment of the application provides a time-frequency resource allocation method which can be executed by a base station or any other equipment with resource allocation capability.

Fig. 4 is a flow chart illustrating a method for allocating time-frequency resources in an embodiment of the present application, and as shown in fig. 4, the method for allocating time-frequency resources provided in the embodiment of the present application includes the following steps S410 to S430.

S410, acquiring service demand parameters of a first network cell.

For the first network cell, it may be a cell with a high resource priority among LTE cells and NR cells. The LTE cell is a communication range covered by the LTE signal of the base station, and the NR cell is a communication area covered by the 5G signal of the base station. In some embodiments, there is at least partial overlap in the ranges of LTE cells and NR cells. Alternatively, the two may not overlap, and this is not a limitation.

For the selection manner of the first network cell, in some embodiments, a cell mainly ensuring communication quality among the LTE cell and the NR cell may be selected as the first network cell. In other embodiments, a cell with a larger number of users among LTE cells and NR cells may be used as the first network cell. In yet other embodiments, the first network cell may be selected according to a traffic type, which is not particularly limited. In still other embodiments, the first network cell may be a cell of the LTE cell and the NR cell that is mainly served by the base station. It should be noted that the first network cell may also be selected according to other scenarios and specific requirements, which is not limited in detail.

It should be noted that, the first network cell may be preset, or dynamically selected according to parameters such as the number of communication users, which is not limited in particular.

Accordingly, for the second network cell, it may be a cell with a low resource priority among the LTE cell and the NR cell. That is, the second network cell may be the other of the LTE cell and the NR cell other than the first network cell. The relevant content of the second network cell is similar to that of the first network cell, and the relevant description of the first network cell in the above-mentioned parts of the embodiment of the present application will not be repeated.

Illustratively, if the LTE cell is a first network cell, the NR cell is a second network cell. Still another example, if the NR cell is a first network cell, the LTE cell is a second network cell.

After the first network cell and the second network cell are introduced, the service requirement parameters are explained next.

For the traffic demand parameter of the first network cell, it may be a parameter that is capable of characterizing the traffic demand of the first network cell. For example, the traffic demand may be a occupancy of time-frequency resources by PDSCH of the first network cell. As yet another example, the traffic demand may be determined according to the number of users of the first network cell, the type of traffic subscribed to by the users, the level of traffic demand for communication quality, etc. It should be noted that the service demand may also be other parameters that can characterize the service demand, which is not specifically limited.

In one embodiment, in the case where the service requirement parameter of the first network cell is the time-frequency resource requirement of the first network cell, the method for allocating time-frequency resources may further include a step of acquiring the service requirement of the first network cell, that is, the following steps A1 and A2.

And step A1, acquiring a plurality of historical PDSCH resource amounts. Wherein, each historical PDSCH resource amount is the time-frequency resource occupation amount of the historical PDSCH of the first network cell.

For example, each historical PDSCH resource amount may be a resource occupation amount of the first network cell within one slot of the downlink physical channel.

For example, in order to improve the calculation accuracy, the time-frequency resource occupation amount of the PDSCH of the first network cell in the plurality of time slots in the preset time period in the history may be used as the plurality of historical PDSCH resource amounts. It should be noted that the preset time period may be selected according to actual situations and specific requirements, for example, a time period within seven days from the current time may be taken as the preset time period, which is not limited in particular.

In yet another example, to increase computational accuracy, multiple historical PDSCH may correspond to the same time period on different dates or within the same time period on the same date. For example, a plurality of historical PDSCHs are acquired within 7:00-8:00 a day.

With the present embodiment, since the amount of communication change in the same time period on different dates has a certain rule, for example, 18: the communication quantity of 00-21:00 is larger, and the communication quantity of 0:00-4:00 is smaller every day, so that the time-frequency resource demand quantity at the current moment is estimated by adopting historical data of the same time period, and the calculation accuracy can be improved.

And step A2, estimating and obtaining the time-frequency resource demand of the first network cell based on a plurality of historical PDSCH resource quantities.

In one example, an average of the plurality of historical PDSCH resource amounts may be used as the estimated time-frequency resource requirement of the first network cell at the current time.

In another example, the plurality of historical PDSCH resource amounts may be weighted to obtain the time-frequency resource demand of the first network cell. For example, the weighting coefficient of each historical PDSCH resource amount may be inversely proportional to the time difference of its corresponding time instant from the current time instant.

It should be noted that, the time-frequency resource requirement of the first network cell at the current moment can also be estimated in other manners.

Through the step A1 and the step A2, the PDSCH at the current moment can be estimated by utilizing the historical PDSCH, and the service demand of the first network cell has certain similarity in a period of time, so that the service demand parameter of the first network cell can be accurately calculated, and the accuracy of resource allocation is further improved.

S420, in the time-frequency resources of the mixed PDCCH, the first time-frequency resources corresponding to the service requirement parameters are allocated to the first network cell.

Wherein the hybrid PDCCH is a PDCCH multiplexed by the first network cell and the second network cell. That is, in the time-frequency resource of the hybrid PDCCH, the first network cell may occupy part and the second network cell may occupy the remaining part. The first network cell and the second network cell may occupy time-frequency resources of the hybrid PDCCH in a frequency division multiplexing and/or time division multiplexing manner.

In some embodiments, to increase the capacity of PDSCH, the time-frequency resource occupation amount of the mixed PDCCH is less than or equal to the sum of the resource occupation amount of the PDSCH of the first network cell and the resource occupation amount of the PDSCH of the second network cell in the original scheme.

For example, the time-frequency resource occupation amount of the hybrid PDSCH may be equal to the total time-frequency resource amount of the first 2 characters of each slot of the downlink physical channel. For example, with continued reference to fig. 3, the time-frequency resource of the first 2 characters of the downlink physical channel in each slot may be used as the time-frequency resource of the hybrid PDCCH.

It should be noted that other manners may be used to allocate the hybrid PDCCH in the time-frequency resource of the first slot of the downlink physical channel, for example, allocate the first 3 characters as the time-frequency resource of the hybrid PDCCH, which is not limited specifically.

According to the embodiment, the time-frequency resource occupation amount of the PDSCH of the NR cell and the LTE cell can be increased, so that the rates of the LTE PDSCH and the NR PDSCH are increased, the DSS performance is improved, the network performance is improved, and the utilization rate of network resources is further improved.

In some embodiments, S420 may include: and taking part of resources in the time-frequency resources of the mixed PDCCH as first time-frequency resources so as to map the PDCCH information of the first network cell into the first time-frequency resources.

For example, the first time-frequency resources may be allocated to the first network cell in CCE units.

After S420 is introduced, S430 is explained next.

And S430, distributing second time-frequency resources except the first time-frequency resources in the time-frequency resources of the mixed PDCCH to the second network cell so as to map the PDCCH information of the second network cell compressed according to the preset compression ratio into the second time-frequency resources.

For S430, for example, if the time-frequency resources of the hybrid PDCCH include K0 time-frequency resource units in total, if K1 time-frequency resource units are used as the first time-frequency resources, the remaining K0-K1 time-frequency resource units may be used as the second time-frequency resources.

In some embodiments, the second time-frequency resource may be allocated to the second network cell in CCE units.

In one example, in the case where the preset compression ratio is greater than or equal to 1, the PDCCH information of the second cell may not be compressed, and the PDCCH information may be directly mapped into the second time-frequency resource. Or, in order to further increase the number of connections of the second network cell, when the preset compression ratio is greater than or equal to 1, the PDCCH information may be compressed according to the preset compression ratio, and then the PDCCH information obtained by compression may be mapped into the second time-frequency resource.

In another example, in the case that the preset compression ratio is less than 1, the PDCCH may be compressed and mapped into the second time-frequency resource.

According to the time-frequency resource allocation method provided by the embodiment of the application, in the time-frequency resources of the mixed PDCCH multiplexed by the first network cell and the second network cell, a sufficient amount of first time-frequency resources are allocated for the PDCCH of the first network cell according to the service demand of the first network cell with higher resource priority, and the rest time-frequency resources except the first time-frequency resources in the mixed PDCCH are allocated to the second network cell, so that the allocation share of the mixed PDCCH between the first network cell and the second network cell can be flexibly adjusted according to the service demand of the first network cell, thereby avoiding time-frequency resource waste caused by the fixed allocation share and improving the time-frequency resource utilization rate.

And, it should be further noted that, the time-frequency resource allocation method provided by the embodiment of the present application can ensure the maximum connection number of the communicable users of the first network cell, and for the second network cell with a lower priority, can increase the maximum connection number of the communicable users by compressing the PDCCH information. Illustratively, if an existing scheme is adopted, a maximum of 1600 users of the first network cell may be connected, and a maximum of 800 users of the second network cell may be connected. The embodiment of the application can improve the connection quantity of the second network cell to 1600 while ensuring the user connection of 1600 first network cells, thereby improving the user capacity of the second network cell while ensuring the user capacity of the first network cell. Illustratively, in the specific scenario of low-band (700M/800M/900M) small bandwidth (10M/15M/20M), the user capacities of the first network cell and the second network cell can be greatly improved.

And, it should be further noted that, in the embodiment of the present application, by means of compressing PDCCH information, the number of CCEs of the PDCCH of the second network cell can be increased, that is, the capacity of the schedulable user of the PDCCH of the second network cell is increased.

The technical scheme provided by the embodiment of the application is beneficial to implementation and popularization of DSS technical schemes such as low-frequency band and small bandwidth, and the wide coverage process of the 5G network is accelerated while the performance of the 4G network is considered. The reliability and the completeness of the DSS technical scheme such as low-frequency band and small bandwidth are guaranteed, the network construction period is shortened, and the network construction cost and the operation and maintenance cost are reduced.

In some embodiments, the method for allocating time-frequency resources may further include a step of calculating a preset compression ratio, i.e., the following steps B1 and B2.

And B1, determining the ratio of the resource quantity of the second time-frequency resource to the time-frequency resource reference occupation quantity of the second network cell.

In one example, the reference occupancy of time-frequency resources of the second network cell may be a total amount of time-frequency resources of 2 characters in the time-domain direction. It should be noted that the second network cell may also be set according to a specific scenario and actual requirements, which will not be described herein.

And step B2, determining the ratio as a preset compression ratio.

For example, if the second time-frequency resource occupies half of a certain character, and the time-frequency resource reference occupation amount of the second network cell is the total time-frequency resource amount of 2 characters, the preset compression ratio is calculated to be 1/4.

In other embodiments, the method for allocating time-frequency resources may further include another step of calculating a preset compression ratio, i.e. the following steps B3-B6.

And step B3, acquiring service demand parameters of the second network cell. Wherein the traffic demand parameter of the second network cell may be a parameter capable of characterizing the traffic demand of the second network cell.

It should be noted that, the manner of obtaining the service requirement parameter of the second network cell is similar to the manner of obtaining the service requirement parameter of the first network cell, and the above-mentioned portions of the embodiments of the present application are combined with the related descriptions of the step A1 and the step A2, which are not repeated.

And step B4, determining a second time-frequency resource demand corresponding to the service demand parameter of the second network cell based on a second corresponding relation between the service demand parameter and the time-frequency resource demand.

And for the second corresponding relation, the second corresponding relation is used for recording the corresponding relation between the service demand parameter and the time-frequency resource demand.

In one embodiment, the method may include time-frequency resource requirements corresponding to a plurality of parameter value ranges. Wherein, the maximum value of the former value range in any two adjacent value ranges is equal to the minimum value of the latter value range.

Illustratively, the second correspondence may include: the time-frequency resource demand amount P1 corresponding to the value range [ L1, L2), and the time-frequency resource demand amount P2, … … corresponding to the value range [ L2, L3). Correspondingly, if the service requirement parameter of the second network cell is greater than or equal to L2 and less than L3, determining that the time-frequency resource requirement of the second network cell is P2.

The second correspondence may be determined according to a ratio of an actual resource occupation amount of the PDCCH of the second network cell to an actual occupation amount of the PDSCH.

In another embodiment, the second correspondence may be a ratio or a relationship function between a service requirement parameter of the second network cell and a time-frequency resource requirement of the second network cell, which is not limited in particular.

And step B5, determining a second time-frequency resource demand corresponding to the service demand parameter of the second network cell and the resource quantity of the second time-frequency resource.

Continuing with the above example, a ratio of the resource amount of the second time-frequency resource (K0-K1) to P2, i.e., (K0-K1)/P2, may be calculated. Wherein, (K0-K1) is the resource amount of the second time-frequency resource allocated by the second network cell through step S430.

And step B6, determining the ratio as a preset compression ratio.

Continuing with the previous example, the predetermined compression ratio is (K0-K1)/P2.

According to the embodiment, the ideal demand of the second time-frequency resource of the second network cell can be determined according to the service demand parameter of the second network cell, and then the compression ratio can be accurately determined according to the ratio of the actual allocation amount to the ideal demand, so that the utilization rate of the PDCCH resource of the second network cell is further improved.

It should be noted that, in the embodiment of the present application, the preset compression ratio may also be calculated in other manners, which is not particularly limited.

Based on the same inventive concept, fig. 5 shows a flow chart of another method for allocating time-frequency resources according to an embodiment of the present application. Embodiments of the present application may be combined with each of the alternatives in one or more of the embodiments described above.

As shown in fig. 5, the method for allocating time-frequency resources provided in the embodiment of the present application includes the following steps S510 to S550.

S510, acquiring service demand parameters of the first network cell. The first network cell is a cell with high resource priority in the LTE cell and the NR cell, and the second network cell is a cell with low resource priority in the LTE cell and the NR cell.

Wherein, S510 is similar to S410, and reference may be made to the specific content of S410, which is not described herein.

S520, determining a dedicated time-frequency resource in the time-frequency resources of the mixed PDCCH as a first time-frequency resource under the condition that the service requirement parameter is smaller than or equal to a first service requirement threshold value.

For the first service requirement threshold, it may be set according to actual conditions and specific requirements, for example, when the PDCCH of the first network cell occupies the 1 st symbol, the resource occupation amount of the PDSCH of the first network cell may be used as the first service requirement threshold, which is not limited specifically.

For the time-frequency resource of the hybrid PDCCH, it may be the time-frequency resource of the first N symbols of the downlink physical channel in the time domain. Wherein, the time-frequency resources of M symbols in the time-frequency resources of the first N symbols are dedicated time-frequency resources of the first network cell. The time-frequency resources of the remaining N-M symbols are shared time-frequency resources of the first network cell and the second network cell, wherein N is a positive integer greater than or equal to 2, and M is a positive integer less than N. Wherein, M and N may be different values according to actual conditions and specific requirements, which will not be described herein.

For example, in the case where N is 2 and M is 1, fig. 6 is a schematic diagram illustrating an allocation scheme of time-frequency resources of an exemplary downlink physical channel according to an embodiment of the present application. The LTE cell is a first network cell, and the NR cell is a second network cell.

As shown in fig. 6, the time-frequency resource of the hybrid PDCCH may be the time-frequency resource of the first 2 symbols in one slot of the downlink physical channel, such as region a and region C. The time-frequency resource of the 1 st symbol, that is, the time-frequency resource corresponding to the region a, may be a dedicated time-frequency resource of LTE. The time-frequency resource of the 2 nd symbol, that is, the time-frequency resource corresponding to the region C, is the shared time-frequency resource of LTE and NR.

S530, allocating special time-frequency resources for the first network cell.

In one example, with continued reference to fig. 6, the dedicated time-frequency resource of the a-region may be used as a first time-frequency resource corresponding to the first network cell, which may be referred to as LTE PDCCH.

S540, the shared time-frequency resource is determined as a second time-frequency resource in the time-frequency resources of the mixed PDCCH.

In one example, with continued reference to fig. 6, the shared time-frequency resource corresponding to region C may be determined to be a second time-frequency resource.

S550, the shared time-frequency resource is distributed to the second network cell, so that the PDCCH information of the second network cell compressed according to the preset compression ratio is mapped into the second time-frequency resource.

In one example, with continued reference to fig. 6, the shared time-frequency resource of region C may be used as a second time-frequency resource corresponding to the second network cell, i.e., region C may be referred to as an NR PDCCH when the NR cell is the second network cell.

In some embodiments, the method for allocating time-frequency resources may further include: and dividing the downlink physical channel by the remaining time-frequency resources of the mixed PDCCH according to the preset allocation proportion of the PDSCH in the frequency direction, and allocating the PDSCH of the first network cell and the PDSCH of the second network cell in a frequency division multiplexing mode. For example, with continued reference to fig. 6, if the bandwidth of the downlink physical channel in the frequency domain direction is [ f1, f2], then [ f1, f3 ] of the downlink physical channel may be allocated to the PDSCH of the second network cell, and [ f3, f2] may be allocated to the PDSCH of the first network cell.

In some embodiments, the method of allocating time-frequency resources may further include the following steps D1 and D2 before S420.

And D1, acquiring the service demand of the second network cell.

It should be noted that, the service requirement of the second network cell may be referred to the above description of the embodiment of the present application in conjunction with step B3, which is not repeated herein.

And D2, taking all time-frequency resources of the first N symbols as time-frequency resources of the hybrid PDCCH under the condition that the service demand of the first network cell is smaller than or equal to a first service demand threshold and the service demand of the second network cell is larger than a second service demand threshold.

The second service requirement threshold may be set according to actual conditions and specific requirements, for example, when the PDCCH of the second network cell occupies the 1 st symbol, the resource occupation amount of the PDSCH of the second network cell may be used as the second service requirement threshold, which is not limited specifically.

In some embodiments, after step D1, the method for allocating time-frequency resources may further include the following steps D3 to D5.

And D3, under the condition that the service demand of the first network cell is smaller than or equal to the first service demand threshold and the service demand of the second network cell is larger than the second service demand threshold, partial time-frequency resources in the first N symbols are allocated as the time-frequency resources of the mixed PDCCH.

For example, the sum of all time-frequency resources of the first Q symbols of the first N symbols and part of time-frequency resources of the remaining N-Q symbols in the frequency domain may be used as the time-frequency resources of the hybrid PDCCH. For example, fig. 7 is a schematic diagram of an allocation scheme of time-frequency resources of another exemplary downlink physical channel according to an embodiment of the present application. As shown in fig. 7, the entire resources of the 1 st symbol and the partial resources of the second symbol, that is, the time-frequency resources of the region a plus the region C in fig. 7, may be used as the time-frequency resources of the hybrid PDCCH.

And D4, taking part of time-frequency resources in the time-frequency resources of the mixed PDCCH as first time-frequency resources. For example, the time-frequency resources of the first Q symbols may be regarded as the first time-frequency resources. For example, with continued reference to fig. 7, it may be the time-frequency resources of region a in fig. 7.

In step D5, the remaining resources except the first time-frequency resource in the time-frequency resources of the hybrid PDCCH may be used as the second time-frequency resource. For example, a portion of the time-frequency resources of the first remaining N-Q symbols in the frequency domain is determined as the second time-frequency resource. For example, with continued reference to fig. 7, the time-frequency resource corresponding to the region C in fig. 7 may be used as the second time-frequency resource.

Alternatively, for the frequency bandwidth of the second time-frequency resource in the frequency domain, it may be different from the frequency bandwidth of the PDSCH of the second network cell.

For example, the frequency band width of the second time-frequency resource in the frequency domain may be a fixed value allocated in advance. For example, it may be 1/2 of the entire frequency band width of the remaining N-Q symbols in the frequency domain, that is, the second time-frequency resource occupies half of the remaining N-Q symbols in the frequency domain. It should be noted that the fixed value may also be other values, for example, 1/8, 1/4, 3/8, 3/4, … … of the entire frequency band width of the remaining N-Q symbol in the frequency domain, which is not limited specifically.

For another example, the frequency band width of the second time-frequency resource in the frequency domain may be set according to the PDSCH requirement of the first network cell or the PDSCH requirement of the second network cell. For example, if the PDSCH of the first network cell needs to be guaranteed, the frequency bandwidth required by the PDSCH of the first network cell may be determined in the remaining N-Q symbols, and the remaining frequency bandwidth in the remaining N-Q symbols may be taken as the frequency bandwidth of the second time-frequency resource in the frequency direction. For another example, if the PDSCH of the second network cell is guaranteed, a frequency band width required to satisfy the PDSCH of the second network cell may be determined, and the frequency band width may be determined as the frequency band width of the second time-frequency resource.

Still alternatively, for the frequency bandwidth of the second time-frequency resource in the frequency domain, it may be the same as the frequency bandwidth of the PDSCH of the second network cell. That is, if the frequency bandwidth of the PDSCH of the second network cell is fixed, the frequency bandwidth of the PDSCH of the second network cell is also fixed. If the frequency bandwidth of the PDSCH of the second network cell is dynamically adjusted, the frequency bandwidth of the second time-frequency resource in the frequency domain may be dynamically adjusted as the frequency bandwidth of the PDSCH of the second network cell changes.

Accordingly, with continued reference to fig. 7, the time-frequency resource from the q+1st symbol to the last symbol may be used as the time-frequency resource of the PDSCH of the first network cell, for example, the time-frequency resource of the 2 nd to 14 th symbols may be used as the time-frequency resource of the PDSCH of the first network cell, so that the capacity of the PDSCH cell of the first network cell may be improved. Alternatively, the CCE aggregation level of the first network cell may be increased according to the time-frequency resource of the PDSCH of the first network cell to improve the communication quality of the edge users of the first network cell.

Based on the same inventive concept, fig. 8 shows a flow chart of another time-frequency resource allocation method according to an embodiment of the present application. Embodiments of the present application may be combined with each of the alternatives in one or more of the embodiments described above.

As shown in fig. 8, the method for allocating time-frequency resources provided in the embodiment of the present application includes the following steps S810 to S850.

S810, acquiring service demand parameters of the first network cell. The first network cell is a cell with high resource priority in the LTE cell and the NR cell, and the second network cell is a cell with low resource priority in the LTE cell and the NR cell.

The S810 is similar to S410, and the specific content of S410 will be referred to herein and will not be described in detail.

S820, when the service demand is greater than the first demand threshold, determining at least one time-frequency resource unit corresponding to the service demand parameter in the frequency domain direction of the shared time-frequency resource, and taking the dedicated time-frequency resource and the at least one time-frequency resource unit together as the first time-frequency resource.

The time-frequency resources of the mixed PDCCH are time-frequency resources of the first N symbols of the downlink physical channel in the time domain, the time-frequency resources of M symbols in the time-frequency resources of the first N symbols are special time-frequency resources of the first network cell, and the time-frequency resources of the remaining N-M symbols are shared time-frequency resources of the first network cell and the second network cell. The specific content of the hybrid PDCCH may be referred to the above description of the embodiment of the present application in conjunction with S520, which is not repeated here.

For example, in the case where N is 2 and M is 1, fig. 9 is a schematic diagram illustrating a time-frequency resource allocation scheme of another exemplary downlink physical channel according to an embodiment of the present application. The LTE cell is a first network cell, and the NR cell is a second network cell.

As shown in fig. 9, the time-frequency resource of the hybrid PDCCH may be the time-frequency resource of the first 2 symbols in one slot of the downlink physical channel, such as region a, region C of region B. The time-frequency resource of the 1 st symbol, that is, the time-frequency resource corresponding to the region a, may be a dedicated time-frequency resource of LTE. The time-frequency resource of the 2 nd symbol, that is, the time-frequency resource corresponding to the area added up by the area B and the area C is the shared time-frequency resource of LTE and NR.

In some embodiments, S820 may include step E1 and step E2.

Step E1, determining a first time-frequency resource demand corresponding to the service demand parameter of the first network cell based on a first corresponding relation between the service demand parameter and the time-frequency resource demand.

And for the first corresponding relation, the first corresponding relation is used for recording the corresponding relation between the service demand parameter of the first network cell and the time-frequency resource demand of the first network cell.

Illustratively, the first correspondence may include: the time-frequency resource demand W1 corresponding to the value range [ J1, J2) and the time-frequency resource demand W2, … … corresponding to the value range [ J2, J3). Correspondingly, if the service requirement parameter of the second network cell is greater than or equal to J2 and less than J3, determining that the time-frequency resource requirement of the second network cell is W2.

The first correspondence may be determined according to a ratio of an actual resource occupation amount of the PDCCH of the first network cell to an actual occupation amount of the PDSCH.

In still another example, after determining the first time-frequency resource requirement corresponding to the service requirement parameter of the first network cell according to the first correspondence, the first time-frequency resource requirement may be increased or decreased according to parameters such as the service type, the communication quality, the communication requirement, and the like.

In another embodiment, the first correspondence may be a ratio or a relationship function between a service requirement parameter of the first network cell and a time-frequency resource requirement of the second network cell, which is not limited in particular.

And E2, determining a time-frequency resource unit of a first time-frequency resource demand in the frequency domain direction of the shared time-frequency resource, and taking the time-frequency resource unit of the first resource demand as at least one time-frequency resource unit.

For example, the time-frequency resource unit corresponding to the first resource demand may be determined in CCE units.

S830, the dedicated time-frequency resource and at least one time-frequency resource unit are allocated to the first network cell.

The at least one time-frequency resource unit is, for example, a time-frequency resource unit corresponding to the region B in fig. 9.

Accordingly, the time-frequency resource corresponding to the area a plus the time-frequency resource corresponding to the area B may be allocated to the first network cell.

S840, among the shared time-frequency resources of the hybrid PDCCH, the remaining time-frequency resource elements other than the at least one time-frequency resource element are determined as the second time-frequency resource.

For example, the time-frequency resources corresponding to the remaining area other than the area B, that is, the area C, may be determined as the second time-frequency resources.

S850, the rest time-frequency resource units are distributed to the second network cell, so that the PDCCH information of the second network cell compressed according to the preset compression ratio is mapped into the second time-frequency resource. For example, PDCCH information of the second network cell may be mapped into the second time-frequency resource.

And as shown in fig. 9, according to the time-frequency resource allocation scheme provided by the embodiment of the application, the duty ratio of the first network cell and the second network cell can be dynamically adjusted in the frequency domain direction of the shared time-frequency resource of the first network cell and the second network cell according to the service demand parameter of the first network cell, so that the flexibility of resource allocation is improved.

In some embodiments, the method for allocating time-frequency resources may further include: and distributing the same frequency band from the (N+1) th character to the last character to the PDSCH of the second network cell according to the frequency band corresponding to the residual time-frequency resource. For example, if the remaining time-frequency resources are the frequency band [ f1, f3 ] of the 2 nd symbol in the frequency domain direction, the PDSCH of the second network cell may be the time-frequency resources of the frequency band [ f1, f3 ] of the 3 rd to 14 th symbols in the frequency domain direction. Accordingly, if each character corresponds to the frequency band [ f1, f2] in the frequency domain direction, the time-frequency resource of the frequency band [ f3, f2] of the 3 rd to 14 th symbols in the frequency domain direction can be determined as the time-frequency resource of the PDSCH of the first network cell.

It should be noted that the frequency bands of the PDSCH and the PDCCH of the same network cell in the frequency domain direction may also be different, for example, the PDSCH of the first network cell and the PDSCH of the second network cell may be fixedly allocated, or dynamically adjusted according to the downlink data amount or the number of users of each cell, which is not limited specifically.

In order to facilitate the overall understanding of the method for allocating time-frequency resources provided by the embodiment of the present application, fig. 10 is a schematic flow chart of an exemplary method for allocating time-frequency resources provided by the embodiment of the present application.

As shown in fig. 10, the allocation method of time-frequency resources may include the following steps S1001 to S1007.

S1001, acquiring service demand parameters of a first network cell.

For example, in the case where the service priority of the LTE cell is high, the first network cell is an LTE cell, and the second network cell is an NR cell.

Optionally, before S1001, a DSS base station power-on procedure is further included, where the power-on procedure may include initialization and parameter configuration. Wherein the DSS base station may be a base station supporting DSS technology.

S1002, judging whether the service demand parameter of the first network cell is larger than a first service demand threshold value. If the determination result is no, the process goes to step S1003; if the determination result is yes, the process goes to step S1006.

S1003, judging whether the service demand parameter of the second network cell is larger than the second service demand threshold value or not when the service demand parameter of the first network cell is smaller than or equal to the first service demand threshold value. If the determination result is yes, step S1004 is skipped; if the determination result is no, the process goes to step S1005.

S1004, when the service requirement parameter of the second network cell is larger than the second service requirement threshold value, distributing all time-frequency resources of the 1 st symbol of the downlink physical channel in the time domain direction to the PDCCH of the first network cell, distributing all time-frequency resources of the 2 nd symbol in the time domain direction to the PDCCH of the second network cell, and distributing the time-frequency resources of the 3 rd to 14 th symbols to the PDSCH of the first network cell and the PDSCH of the second network cell in a frequency division multiplexing mode.

This allocation scheme may be seen, for example, in fig. 6 above.

S1005, when the service requirement parameter of the second network cell is smaller than or equal to the second service requirement threshold value, allocating all time-frequency resources of the 1 st symbol of the downlink physical channel in the time domain direction to the PDCCH of the first network cell, allocating part of time-frequency resources of the 2 nd symbol in the time domain direction to the PDCCH of the second network cell, and allocating part of time-frequency resources of the 2 nd symbol to the 14 th symbol to the PDSCH of the first network cell, and allocating part of time-frequency resources of the 3 rd symbol to the 14 th symbol to the PDSCH of the second network cell.

For example, with continued reference to fig. 7, the remaining time-frequency resources except for the time-frequency resources of the PDCCH allocated to the second network cell in the 2 nd symbol may be allocated to the PDSCH of the first network cell, and the time-frequency resources in the 3 rd to 14 th symbols corresponding to the remaining time-frequency resources may be also allocated to the PDSCH of the first network cell. And allocating the time-frequency resources of the PDCCH allocated to the second network cell to the PDSCH of the second network cell for the time-frequency resources in the 3 rd symbol to the 14 th symbol of the same frequency band.

S1006, at least one time-frequency resource unit corresponding to the service requirement parameter of the first network cell is determined in the frequency domain direction in the time-frequency resource of the 2 nd symbol.

S1007, the entire time-frequency resource of the 1 st symbol and at least one time-frequency resource unit of the 2 nd symbol are used together as a first time-frequency resource, and the first time-frequency resource is allocated to the PDCCH of the first network cell, and the remaining time-frequency resource except for the at least one time-frequency resource unit in the 2 nd symbol is used as a second time-frequency resource, and the second time-frequency resource is allocated to the second network cell. And allocating the time-frequency resources of the 3 rd symbol to the 14 th symbol to the PDSCH of the first network cell and the PDSCH of the second network cell in a frequency division multiplexing mode.

After the method for allocating time-frequency resources provided by the embodiment of the present application is described through fig. 4 to fig. 10, a method for processing PDCCH information provided by the embodiment of the present application is described next.

Based on the same inventive concept, the embodiment of the application provides a method for processing PDCCH information, which can be executed by a base station or any other equipment with resource allocation capability.

Fig. 11 is a flowchart illustrating a method for processing PDCCH information in an embodiment of the present application, and as shown in fig. 11, the method for allocating time-frequency resources provided in the embodiment of the present application includes the following steps S1110 to S1140.

S1110, acquiring first PDCCH information corresponding to a first network cell and second PDCCH information corresponding to a second network cell.

For example, both the first PDCCH information and the second PDCCH information may be DCI information. It should be noted that other information may be selected as PDCCH information according to actual situations and specific transmission requirements, which will not be described herein.

S1120, acquiring a first time-frequency resource corresponding to the first network cell and a second time-frequency resource corresponding to the second network cell. The first time-frequency resource is a time-frequency resource corresponding to a service demand parameter of the first network cell in the time-frequency resources of the mixed PDCCH, the second time-frequency resource is the rest resources except the first time-frequency resource in the mixed PDCCH, and the mixed PDCCH is a PDCCH multiplexed by the PDCCH of the first network cell and the PDCCH of the second network cell.

It should be noted that, the specific requirements of the above-mentioned portions of the embodiments of the present application may be referred to for specific implementation of the first time-frequency resource and the second time-frequency resource, which are not repeated herein.

S1130, the first PDCCH information is mapped to a first time-frequency resource.

In one embodiment, resource mapping may be performed in CCE units, which will not be described in detail.

S1140, compressing the second PDCCH information according to a preset compression ratio, and mapping the compressed second PDCCH information to a second time-frequency resource.

In an embodiment, resource mapping may be performed on the compressed second PDCCH information by using CCE as a unit, which will not be described in detail.

In one embodiment, S1140 may include steps G1 to G4 described below.

And G1, acquiring a CCE aggregation level before compression.

That is, the CCE aggregation level when the second PDCCH information of the second network cell is not compressed. The CCE aggregation level may be set to 1, 2, 4, 8, 16, etc. according to a specific scenario and actual requirements, which is not specifically limited.

And G2, calculating the product of the CCE aggregation level before compression and a preset compression ratio.

For example, if the CCE aggregation level of the second network cell before compression is 4 and the preset compression ratio is 1/2, the calculated product may be 2.

And G3, determining the product as the compressed CCE aggregation level. That is, the compressed CCE aggregation level may be 2.

And G4, mapping the compressed DCI information to a second time-frequency resource according to the compressed CCE aggregation level.

Continuing with the above example, the compressed CCE aggregation level may be 2, i.e., the compressed PDSCH information may be mapped into 2 CCEs.

The method for processing the PDCCH information provided by the embodiment of the application can map the first PDCCH information of the first network cell into the first time-frequency resource, and can provide enough PDCCH resource space for the first network cell because the first time-frequency resource is a sufficient first time-frequency resource which is allocated for the PDCCH of the first network cell preferentially according to the service demand of the first network cell in the time-frequency resource of the mixed PDCCH multiplexed by the first network cell and the second network cell. And the second PDCCH information can be compressed and mapped into the second time-frequency resource, and the rest time-frequency resources except the first time-frequency resource in the mixed PDCCH are used as the second time-frequency resource, so that a sufficient amount of the second time-frequency resource can be mapped into a small amount of the second time-frequency resource in a compression mode, the allocation share of the mixed PDCCH between the first network cell and the second network cell can be flexibly adjusted according to the service demand of the first network cell, thereby avoiding time-frequency resource waste caused by the fixed allocation share and improving the time-frequency resource utilization rate.

Based on the same inventive concept, the embodiment of the application also provides a time-frequency resource allocation device, as in the following embodiment.

Fig. 12 is a schematic diagram of an apparatus for allocating time-frequency resources according to an embodiment of the present application, and as shown in fig. 12, the apparatus 1200 for allocating time-frequency resources includes a parameter obtaining module 1210, a first resource allocation module 1220, and a second resource allocation module 1230.

The parameter obtaining module 1210 is configured to obtain a service requirement parameter of the first network cell.

The first resource allocation module 1220 is configured to allocate, among the time-frequency resources of the mixed PDCCH, a first time-frequency resource corresponding to the service requirement parameter to the first network cell, where the mixed PDCCH is a PDCCH multiplexed by the first network cell and the second network cell.

A second resource allocation module 1230, configured to allocate a second time-frequency resource other than the first time-frequency resource in the time-frequency resources of the hybrid PDCCH to the second network cell, so as to map PDCCH information of the second network cell compressed according to the preset compression ratio into the second time-frequency resource.

a first resource allocation module 1220 configured to:

and a second resource allocation module 1230 configured to:

A first resource allocation module 1220 configured to:

and a second resource allocation module 1230 configured to:

In one embodiment, the second resource allocation module 1230 is configured to:

the time-frequency resource allocation apparatus 1200 further includes a resource amount acquisition module and a parameter estimation module.

The resource quantity acquisition module is used for acquiring a plurality of historical PDSCH resource quantities, wherein each historical PDSCH resource quantity is the time-frequency resource occupation quantity of the historical PDSCH of the first network cell;

and the parameter estimation module is used for estimating and obtaining the time-frequency resource demand of the first network cell based on the plurality of historical PDSCH resource quantities.

In one embodiment, the time-frequency resource allocation apparatus 1200 further includes: a first data calculation module and a first data processing module.

The first data calculation module is used for determining the ratio of the resource quantity of the second time-frequency resource to the time-frequency resource reference occupation quantity of the second network cell;

and the first data processing module is used for determining the ratio as a preset compression ratio.

In one embodiment, the parameter obtaining module 1210 is further configured to obtain a service requirement parameter of the second network cell;

the time-frequency resource allocation apparatus 1200 further includes: the system comprises a resource mapping module, a second data computing module and a second data processing module.

The resource mapping module is used for determining a second time-frequency resource demand corresponding to the service demand parameter of the second network cell based on a second corresponding relation between the service demand parameter and the time-frequency resource demand;

The second data calculation module is used for determining the ratio of the resource quantity of the second time-frequency resource to the second time-frequency resource demand quantity corresponding to the service demand parameter of the second network cell;

and the second data processing module is used for determining the ratio as a preset compression ratio.

It should be noted that, the time-frequency resource allocation apparatus 1200 shown in fig. 12 may perform the steps in the method embodiments shown in fig. 4 to 10, and implement the processes and effects in the method embodiments shown in fig. 4 to 10, which are not described herein.

The time-frequency resource allocation device provided by the embodiment of the application can allocate enough first time-frequency resources for the PDCCH of the first network cell according to the service demand of the first network cell with higher resource priority in the time-frequency resources of the mixed PDCCH multiplexed by the first network cell and the second network cell, and allocate the rest time-frequency resources except the first time-frequency resources in the mixed PDCCH to the second network cell, so that the allocation share of the mixed PDCCH between the first network cell and the second network cell can be flexibly adjusted according to the service demand of the first network cell, thereby avoiding the time-frequency resource waste caused by the fixed allocation share and improving the time-frequency resource utilization rate.

Based on the same inventive concept, the embodiment of the application also provides a device for processing the PDCCH information, as in the following embodiment.

Fig. 13 shows a schematic diagram of a PDCCH information processing apparatus according to an embodiment of the present application, and as shown in fig. 13, the PDCCH information processing apparatus 1300 includes an information acquisition module 1310, a resource acquisition module 1320, a first resource mapping module 1330, and a second resource mapping module 1340.

An information obtaining module 1310, configured to obtain first PDCCH information corresponding to a first network cell and second PDCCH information corresponding to a second network cell, where the first network cell is a cell with a high resource priority in an LTE cell and an NR cell, and the second network cell is a cell with a low resource priority in the LTE cell and the NR cell;

a resource obtaining module 1320, configured to obtain a first time-frequency resource corresponding to a first network cell, and obtain a second time-frequency resource corresponding to a second network cell, where the first time-frequency resource is a time-frequency resource corresponding to a service requirement parameter of the first network cell in time-frequency resources of a mixed PDCCH, the second time-frequency resource is a remaining resource except the first time-frequency resource in the mixed PDCCH, and the mixed PDCCH is a PDCCH multiplexed by a PDCCH of the first network cell and a PDCCH of the second network cell;

A first resource mapping module 1330 configured to map the first PDCCH information to a first time-frequency resource;

the second resource mapping module 1340 is configured to compress the second PDCCH information according to a preset compression ratio, and map the compressed second PDCCH information to a second time-frequency resource.

a second resource mapping module 1340 configured to:

acquiring a Control Channel Element (CCE) aggregation level before compression;

determining the product as a compressed CCE aggregation level;

Note that, the PDCCH information processing apparatus 1300 shown in fig. 13 may perform the steps in the method embodiment shown in fig. 11, and implement the procedures and effects in the method embodiment shown in fig. 11, which are not described herein.

The processing device for the PDCCH information provided by the embodiment of the application can map the first PDCCH information of the first network cell into the first time-frequency resource, and can provide enough PDCCH resource space for the first network cell because the first time-frequency resource is a sufficient first time-frequency resource which is allocated for the PDCCH of the first network cell preferentially according to the service demand of the first network cell in the time-frequency resource of the mixed PDCCH multiplexed by the first network cell and the second network cell. And the second PDCCH information can be compressed and mapped into the second time-frequency resource, and the rest time-frequency resources except the first time-frequency resource in the mixed PDCCH are used as the second time-frequency resource, so that a sufficient amount of the second time-frequency resource can be mapped into a small amount of the second time-frequency resource in a compression mode, the allocation share of the mixed PDCCH between the first network cell and the second network cell can be flexibly adjusted according to the service demand of the first network cell, thereby avoiding time-frequency resource waste caused by the fixed allocation share and improving the time-frequency resource utilization rate.

Based on the same inventive concept, the embodiment of the application also provides a base station, which can comprise a time-frequency resource allocation device and a PDCCH information processing device.

The device for allocating time-frequency resources may refer to the related description of the above portion of the embodiment of the present application in conjunction with fig. 12, and the device for processing PDCCH information may refer to the related description of the above portion of the embodiment of the present application in conjunction with fig. 14.

For ease of understanding, fig. 14 shows a schematic structural diagram of an exemplary base station according to an embodiment of the present application.

As shown in fig. 14, the time-frequency resource allocation apparatus, or referred to as a hybrid PDCCH resource mapping controller, may acquire a service requirement parameter of an LTE cell and a service requirement parameter of an NR cell, determine a first time-frequency resource of a PDCCH of the LTE cell according to the service requirement parameter of the LTE cell and the service requirement parameter of the NR cell, and determine a second time-frequency resource of the PDCCH of the NR cell and a preset compression ratio.

The processing flow of the DCI information for the LTE cell user and the DCI information for the NR cell user by the PDCCH information processing apparatus of the base station will be described in order.

For example, after acquiring DCI information of an LTE cell user, the PDCCH information processing apparatus may perform CRC Attachment processing (CRC Attachment), channel Coding processing (Channel Coding), rate Matching processing (Rate Matching), multiplexing and scrambling processing (Multiplexing/scrambling), modulation processing (Modulation), layer Mapping and Precoding processing (Layer Mapping/Precoding) and RE Mapping (Resource Element Mapping) processing on the DCI information, and then transmit the DCI information through a PDCCH Channel of an LTE cell in a mixed PDCCH Channel.

When the RE is mapped, the first time-frequency resource of the PDCCH of the LTE cell transmitted by the time-frequency resource allocation device can be received, and CCE information of the LTE cell is received. The DCI information is then mapped onto the first time-frequency resource in the form of CCEs.

As yet another example, the processing apparatus of PDCCH information may perform multiplexing (Information Element Multiplexing), CRC Attachment (CRC Attachment), channel Coding (Channel Coding), rate Matching (Rate Matching), scrambling (scrambling), modulation (Modulation), resource compression (Resource Element Compression), and RE mapping (Resource Element Mapping) on the obtained DCI information of the NR cell user, and then transmit the DCI information through the PDCCH Channel of the NR cell in the mixed PDCCH Channel.

And when the resource compression processing is performed, the preset compression ratio transmitted by the time-frequency resource distribution device can be received, and the DCI information of the NR cell user is compressed according to the preset compression ratio to obtain compressed DCI information.

And during RE mapping, receiving a second time-frequency resource of the PDCCH of the NR cell transmitted by the time-frequency resource allocation device, and acquiring CCE information of the NR cell. The DCI information is then mapped onto the second time-frequency resource in the form of CCEs.

Those skilled in the art will appreciate that the various aspects of the application may be implemented as a system, method, or program product. Accordingly, aspects of the application may be embodied in the following forms, namely: an entirely hardware embodiment, an entirely software embodiment (including firmware, micro-code, etc.) or an embodiment combining hardware and software aspects may be referred to herein as a "circuit," module "or" system.

An electronic device 1500 according to such an embodiment of the application is described below with reference to fig. 15. The electronic device 1500 shown in fig. 15 is merely an example, and should not be construed as limiting the functionality and scope of use of embodiments of the present application.

As shown in fig. 15, the electronic device 1500 is embodied in the form of a general purpose computing device. The components of electronic device 1500 may include, but are not limited to: the at least one processing unit 1510, the at least one storage unit 1520, a bus 1530 that connects the different system components (including the storage unit 1520 and the processing unit 1510).

Wherein the storage unit stores program code that can be executed by the processing unit 1510 such that the processing unit 1510 performs steps according to various exemplary embodiments of the present application described in the above section of the "exemplary method" of the present specification.

The storage unit 1520 may include readable media in the form of volatile memory units such as Random Access Memory (RAM) 15201 and/or cache memory 15202, and may further include Read Only Memory (ROM) 15203.

The storage unit 1520 may also include a program/utility 15204 having a set (at least one) of program modules 15205, such program modules 15205 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.

Bus 1530 may be a bus representing one or more of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

The electronic device 1500 may also communicate with one or more external devices 1540 (e.g., keyboard, pointing device, bluetooth device, etc.), one or more devices that enable a user to interact with the electronic device 1500, and/or any device (e.g., router, modem, etc.) that enables the electronic device 1500 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 1550.

Also, the electronic device 1500 may also communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN) and/or a public network, for example, the Internet, through a network adapter 1560.

As shown in fig. 15, the network adapter 1560 communicates with other modules of the electronic device 1500 over the bus 1530.

It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 1500, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.

From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present application may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, and includes several instructions to cause a computing device (may be a personal computer, a server, a terminal device, or a network device, etc.) to perform the method according to the embodiments of the present application.

In an exemplary embodiment of the present application, a computer-readable storage medium, which may be a readable signal medium or a readable storage medium, is also provided. Embodiments of the present application also provide a schematic diagram of a computer readable storage medium, where a program product capable of implementing the above method of the present application is stored.

In some possible embodiments, the aspects of the application may also be implemented in the form of a program product comprising program code for causing a terminal device to carry out the steps according to the various exemplary embodiments of the application as described in the "exemplary method" section of this specification, when the program product is run on the terminal device.

More specific examples of the computer readable storage medium in the present application may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

In the present application, a computer readable storage medium may include a data signal propagated in baseband or as part of a carrier wave, with readable program code embodied therein.

Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing.

A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

In some examples, program code embodied on a computer readable storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

In particular implementations, the program code for carrying out operations of the present application may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages.

The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server.

In the case of remote computing devices, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., connected via the Internet using an Internet service provider).

It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory.

Indeed, the features and functions of two or more modules or units described above may be embodied in one module or unit in accordance with embodiments of the application. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.

Furthermore, although the steps of the methods of the present application are depicted in the accompanying drawings in a particular order, this is not required to either imply that the steps must be performed in that particular order, or that all of the illustrated steps be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.

From the description of the above embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware.

Thus, the technical solution according to the embodiments of the present application may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, and includes several instructions to cause a computing device (may be a personal computer, a server, a mobile terminal, or a network device, etc.) to perform the method according to the embodiments of the present application.

Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein.

This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

Claims

1. A method for allocating time-frequency resources, comprising:

acquiring service demand parameters of a first network cell;

in the time-frequency resources of the mixed physical downlink control channel PDCCH, a first time-frequency resource corresponding to the service demand parameter is allocated to the first network cell, wherein the mixed PDCCH is the PDCCH multiplexed by the first network cell and the second network cell;

the first network cell is a cell with high resource priority in a Long Term Evolution (LTE) cell and a new air interface (NR) cell, and the second network cell is a cell with low resource priority in the LTE cell and the NR cell;

the first network cell and the second network cell occupy time-frequency resources of the hybrid PDCCH in a frequency division multiplexing and/or time division multiplexing mode.

2. The method of claim 1, wherein the time-frequency resources of the hybrid PDCCH are time-frequency resources of first N symbols of a downlink physical channel in a time domain, the time-frequency resources of M symbols in the time-frequency resources of the first N symbols are dedicated time-frequency resources of the first network cell, and the time-frequency resources of the remaining N-M symbols are shared time-frequency resources of the first network cell and the second network cell, wherein N is a positive integer greater than or equal to 2, and M is a positive integer less than N;

The allocating the first time-frequency resource corresponding to the service requirement parameter for the first network cell includes:

determining a dedicated time-frequency resource in the time-frequency resources of the hybrid PDCCH as the first time-frequency resource under the condition that the service demand parameter is smaller than or equal to a first service demand threshold value; allocating the dedicated time-frequency resource for the first network cell;

and the allocating a second time-frequency resource except the first time-frequency resource in the time-frequency resources of the mixed PDCCH to a second network cell, including:

determining the shared time-frequency resource as the second time-frequency resource in the time-frequency resources of the mixed PDCCH; and distributing the shared time-frequency resource to the second network cell.

3. The method of claim 1, wherein the time-frequency resources of the hybrid PDCCH are time-frequency resources of first N symbols of a downlink physical channel in a time domain, the time-frequency resources of M symbols in the time-frequency resources of the first N symbols are dedicated time-frequency resources of the first network cell, and the time-frequency resources of the remaining N-M symbols are shared time-frequency resources of the first network cell and the second network cell, wherein N is a positive integer greater than or equal to 2, and M is a positive integer less than N;

determining at least one time-frequency resource unit corresponding to the service demand parameter in the frequency domain direction of the shared time-frequency resource under the condition that the service demand parameter is larger than a first service demand threshold value; the dedicated time-frequency resource and the at least one time-frequency resource unit are used as the first time-frequency resource together; allocating the dedicated time-frequency resource and the at least one time-frequency resource unit to a first network cell;

determining remaining time-frequency resource units except the at least one time-frequency resource unit as the second time-frequency resource in the shared time-frequency resource of the hybrid PDCCH; and distributing the residual time-frequency resource units to the second network cell.

4. The method of claim 3, wherein the step of,

the determining at least one time-frequency resource unit corresponding to the service requirement parameter in the frequency domain direction of the shared time-frequency resource includes:

and determining the time-frequency resource unit of the first time-frequency resource demand in the frequency domain direction of the shared time-frequency resource, and taking the time-frequency resource unit of the first time-frequency resource demand as the at least one time-frequency resource unit.

5. The method according to claim 1, wherein the traffic demand parameter of the first network cell is a time-frequency resource demand of the first network cell;

the method further comprises the steps of:

and estimating the time-frequency resource demand of the first network cell based on the historical PDSCH resource quantities.

6. The method according to any one of claims 1-5, further comprising:

determining a ratio of the resource amount of the second time-frequency resource to the time-frequency resource reference occupation amount of the second network cell;

and determining the ratio as a preset compression ratio.

7. The method according to any one of claims 1-5, further comprising:

acquiring service demand parameters of the second network cell;

determining a ratio of the resource amount of the second time-frequency resource to a second time-frequency resource demand amount corresponding to the service demand parameter of the second network cell;

and determining the ratio as a preset compression ratio.

8. The method for processing the PDCCH information is characterized by comprising the following steps of:

acquiring a first time-frequency resource corresponding to the first network cell and a second time-frequency resource corresponding to the second network cell, wherein the first time-frequency resource is a time-frequency resource corresponding to a service demand parameter of the first network cell in a time-frequency resource of a mixed PDCCH, the second time-frequency resource is a residual resource except the first time-frequency resource in the mixed PDCCH, and the mixed PDCCH is a PDCCH multiplexed by the PDCCH of the first network cell and the PDCCH of the second network cell;

Mapping the first PDCCH information to the first time-frequency resource;

compressing the second PDCCH information according to a preset compression ratio, and mapping the compressed second PDCCH information to the second time-frequency resource;

9. The method of claim 8, wherein the second PDCCH information is downlink control information, DCI, information;

the mapping the compressed second PDCCH information to the second time-frequency resource includes:

acquiring a Control Channel Element (CCE) aggregation level before compression;

calculating the product of the CCE aggregation level before compression and the preset compression ratio;

determining the product as a compressed CCE aggregation level;

and mapping the compressed DCI information to the second time-frequency resource according to the compressed CCE aggregation level.

10. A time-frequency resource allocation apparatus, comprising:

a first resource allocation module, configured to allocate, among time-frequency resources of a mixed PDCCH, a first time-frequency resource corresponding to the service requirement parameter to the first network cell, where the mixed PDCCH is a PDCCH multiplexed by the first network cell and the second network cell;

A second resource allocation module, configured to allocate a second time-frequency resource other than the first time-frequency resource in the time-frequency resources of the hybrid PDCCH to a second network cell, so as to map PDCCH information of the second network cell compressed according to a preset compression ratio into the second time-frequency resource;

the first network cell is a cell with high resource priority in an LTE cell and an NR cell, and the second network cell is a cell with low resource priority in the LTE cell and the NR cell;

11. A PDCCH information processing apparatus, comprising:

the resource acquisition module is configured to acquire a first time-frequency resource corresponding to the first network cell and acquire a second time-frequency resource corresponding to the second network cell, where the first time-frequency resource is a time-frequency resource corresponding to a service requirement parameter of the first network cell in time-frequency resources of a hybrid PDCCH, the second time-frequency resource is a remaining resource except the first time-frequency resource in the hybrid PDCCH, and the hybrid PDCCH is a PDCCH multiplexed by a PDCCH of the first network cell and a PDCCH of the second network cell;

A first resource mapping module, configured to map the first PDCCH information to the first time-frequency resource;

the second resource mapping module is used for compressing the second PDCCH information according to a preset compression ratio and mapping the compressed second PDCCH information to the second time-frequency resource;

12. A base station, comprising:

the time-frequency resource allocation apparatus according to claim 10; the method comprises the steps of,

the PDCCH information processing apparatus of claim 11.

13. An electronic device, comprising:

a processor; and

a memory for storing executable instructions of the processor;

wherein the processor is configured to perform the method of allocating time-frequency resources of any of claims 1-7 or the method of processing PDCCH information of any of claims 8-9 via execution of the executable instructions.

14. A computer readable storage medium having stored thereon a computer program, wherein the computer program when executed by a processor implements the method of allocating time-frequency resources according to any of claims 1-7 or implements the method of processing PDCCH information according to any of claims 8-9.