CN114928891A

CN114928891A - Base station, resource allocation and PDCCH information processing method, device, equipment and medium

Info

Publication number: CN114928891A
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: 2022-08-19
Anticipated expiration: 2042-06-09
Also published as: CN114928891B

Abstract

The application provides a base station, a resource allocation method, a PDCCH information processing method, a device, equipment and a medium, and relates to the technical field of communication. The method comprises the following steps: acquiring a service demand parameter of a first network cell; allocating a first time-frequency resource corresponding to a service demand parameter to a first network cell in time-frequency resources of a hybrid PDCCH, wherein the hybrid PDCCH is a PDCCH multiplexed by the first network cell and a second network cell; allocating 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 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. According to the embodiment of the application, the utilization rate of the time-frequency resource 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 base station, a resource allocation method, a resource allocation device, a PDCCH information processing method, an apparatus, and a medium.

Background

In order to realize the smooth evolution of the fourth Generation Mobile Communication Technology (4G) to the fifth Generation Mobile Communication Technology (5G), Dynamic Spectrum Sharing (DSS) Technology has become one of the research directions of Communication Technology. DSS, a technology that allows Long Term Evolution (LTE) of 4G and New Radio (NR) of 5G to share the same spectrum.

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

It is noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the application and therefore may include information that does not constitute prior art that is already known to a person of ordinary skill in the art.

Disclosure of Invention

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

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

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

acquiring a service demand parameter of a first network cell;

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

allocating 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 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.

In one embodiment, the time frequency resources of the hybrid PDCCH are first time frequency resources of N symbols of a downlink physical channel in a time domain, the time frequency resources of M symbols of the first time frequency resources of N symbols are dedicated time frequency resources of a 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 a 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 a first time-frequency resource corresponding to a service demand parameter for a first network cell, comprising:

under the condition that the service requirement parameter is less than or equal to a first service requirement 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 except the first time-frequency resource in the time-frequency resources of the hybrid PDCCH to a second network cell, comprising:

determining the shared time-frequency resource as a second time-frequency resource in the time-frequency resources of the hybrid PDCCH; and allocating the shared time-frequency resource to the second network cell.

In one embodiment, 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 of the time frequency resources of the first N symbols are dedicated time frequency resources of a 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 a second network cell, where N is a positive integer greater than or equal to 2, and M is a positive integer less than N;

under the condition that the service requirement parameter is larger than the first service requirement threshold value, at least one time-frequency resource unit corresponding to the service requirement parameter is determined in the frequency domain direction of the shared time-frequency resource; taking the dedicated time frequency resource and at least one time frequency resource unit 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;

determining the rest time-frequency resource units except for at least one time-frequency resource unit as a second time-frequency resource in the shared time-frequency resource of the time-frequency resources of the mixed PDCCH; and distributing the residual time-frequency resource units to the second network cell.

In one embodiment, 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:

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

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 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 following steps:

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 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 the ratio of the resource amount of the second time-frequency resource to the 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 a service requirement parameter 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 the second corresponding relation between the service demand parameter and the time-frequency resource demand;

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;

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 requirement parameter of the first network cell in the time-frequency resources of a mixed PDCCH (physical Downlink control channel), 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 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, including:

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

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

the first resource allocation module is used for allocating a first time-frequency resource corresponding to the service demand parameter to the first network cell in the time-frequency resources of the hybrid PDCCH, wherein the hybrid PDCCH is a 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 hybrid PDCCH to a second network cell so as to map the PDCCH information of the second network cell compressed according to a preset compression ratio into the second time-frequency resources;

According to still another aspect of the present application, there is provided an apparatus for processing PDCCH information, 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 a first network cell and acquiring 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 requirement parameter of the first network cell in the time-frequency resources of the 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;

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

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

the distribution device of the time frequency resources; and the number of the first and second groups,

device for processing PDCCH information

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

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

According to yet another aspect of the present application, a computer program product is provided, which comprises a computer program, and is characterized in that the computer program is executed by a processor to implement the above-mentioned time-frequency resource allocation method or PDCCH information processing method.

The base station, the resource allocation method, the resource allocation device, the PDCCH information processing method, the base station, the resource allocation device, the PDCCH information processing apparatus, and the PDCCH information processing medium, which are provided by the embodiment of the application, can allocate a sufficient amount of first time-frequency resources to 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 a second network cell, and allocate remaining time-frequency resources, except the first time-frequency resources, in the mixed PDCCH to the second network cell, so that allocation shares 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 fixed allocation shares 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.

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 obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

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

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

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

fig. 4 is a schematic flowchart illustrating a method for allocating time-frequency resources according to an embodiment of the present application;

fig. 5 is a flowchart illustrating another time-frequency resource allocation method according to an embodiment of the present application;

fig. 6 is a schematic diagram illustrating an exemplary allocation scheme of time-frequency resources of a 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 schematic flowchart illustrating another time-frequency resource allocation method according to an embodiment of the present application;

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

fig. 10 is a flowchart 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 illustrating an apparatus for allocating time-frequency resources according to an embodiment of the present application;

FIG. 13 is a diagram illustrating an apparatus for processing PDCCH information in an embodiment of the present application;

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

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

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different 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 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 their repetitive description 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 the form of 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 in parallel. Moreover, method embodiments may include additional steps and/or omit performing the illustrated steps. The scope of the present application is not limited in this respect.

It should be noted that the terms "first", "second", and the like in the present application are only used for distinguishing different devices, modules or units, and are not used for limiting the order or interdependence relationship of the functions performed by the devices, modules or units.

It is noted that references to "a", "an", and "the" modifications in this application are intended to be illustrative rather than limiting, and that those skilled in the art will recognize that reference to "one or more" unless the context clearly dictates otherwise.

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

In DSS technology, 4G LTE cells and 5G NR cells tend to reuse 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 improve the time-frequency resource utilization rate of the downlink physical channel becomes one of the research directions.

In a related technology, a time-frequency resource allocation scheme suitable for more LTE users and less NR users is provided. Fig. 1 is a schematic diagram illustrating a scheme for allocating time-frequency resources 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 time-frequency resources in the first 2 symbols in the frequency domain. The NR PDCCH is configured at the 3 rd symbol of each slot, and partially occupies time-frequency resources within the 3 rd symbol in the frequency domain.

In another related technology, a time-frequency resource allocation scheme suitable for less LTE users and more 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 resources in the 1 st symbol in the frequency domain direction. The NR PDCCH is configured in 2-3 symbols and partially occupies time-frequency resources within 2-3 symbols in the frequency domain.

However, the above resource allocation scheme has 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 in time division multiplexing, and the occupancy amount of the LTE PDCCH and the NR PDCCH on time-frequency resources is fixed, so that the service requirement in an actual communication scene cannot be met. 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, which causes the LTE PDCCH time-frequency resource waste. And, there may also be effects such as reduced DSS performance, limited number of NR users connected to the NR cell, limited downlink physical channel capacity such as NR PDCCH, and poor network user experience.

In order to solve at least one of the above problems, an embodiment of the present application provides a technical solution, where in time-frequency resources of a mixed PDCCH multiplexed in a first network cell and a second network cell, a sufficient amount of first time-frequency resources are first allocated to the PDCCH of the first network cell according to a service requirement of the first network cell with a higher resource priority, and remaining time-frequency resources except the first time-frequency resources in the mixed PDCCH are allocated to the second network cell, so that allocation shares of the mixed PDCCH between the first network cell and the second network cell can be flexibly adjusted according to the service requirement of the first network cell, thereby avoiding time-frequency resource waste caused by fixed allocation shares and improving a time-frequency resource utilization rate. The technical scheme provided by the embodiment of the application can be suitable for a DSS scene, illustratively, a specific scene of a low frequency band and a small bandwidth. For example, the low frequency band may be 700M (mega), 800M, or 900M. The small bandwidth may be 10M, 15M, 20M in a specific scenario.

Before starting to describe the technical solutions provided by the embodiments of the present application, technical terms related to the embodiments of the present application are described.

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

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

(2) A Physical Downlink Control Channel (PDCCH) is used for carrying scheduling and other Control information, and is used for transmitting Control signaling such as uplink and Downlink scheduling, power Control, resource allocation, and the like.

Illustratively, the PDCCH may transmit Downlink Control Information (DCI). The DCI may include scheduling information of PDSCH and PUSCH transmission resources, uplink power control information, Slot format indication, and information such as a PRB and Orthogonal Frequency Division Multiplexing (OFDM) symbol used by a User Equipment (UE).

(3) A Physical Downlink Shared Channel (PDSCH) for carrying Downlink user data.

(4) A Control Channel Element (CCE), which may be a resource unit of PDCCH transmission. One CCE may include multiple Resource Elements (REs), where an RE is the smallest time-frequency Resource unit.

For example, DCI for each user may be transmitted on one or more consecutive CCEs, that is, PDCCH channels, and the resource allocated to each independent DCI is in CCE units.

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

After introducing the above concept, the time-frequency resource related to the embodiments of the present application will be described next.

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

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

After preliminarily knowing the time-frequency resources of the downlink physical channel in 1 timeslot, the following describes the allocation scheme of the time-frequency resources provided by the embodiment of the present application with reference to the drawings and the embodiments.

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

Fig. 4 is a schematic flowchart illustrating a method for allocating time-frequency resources in this embodiment, and as shown in fig. 4, the method for allocating time-frequency resources in this embodiment includes the following steps S410 to S430.

S410, acquiring the service demand parameter of the first network cell.

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

For the selection manner of the first network cell, in some embodiments, a cell mainly ensuring communication quality in 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 in the LTE cell and the NR cell may be used as the first network cell. In still other embodiments, the first network cell may be selected according to a traffic type, which is not specifically limited. In still other embodiments, the first network cell may be a cell primarily served by the base station in the LTE cell and the NR cell. 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 particular.

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 specifically limited.

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 reference may be made to the relevant description of the first network cell in the foregoing part of the embodiment of the present application, which is not described again.

Exemplarily, if the LTE cell is a first network cell, the NR cell is a second network cell. For yet another example, if the NR cell is a first network cell, the LTE cell is a second network cell.

After introducing the first network cell and the second network cell, the service requirement parameter is explained next.

The traffic demand parameter for the first network cell may be a parameter that can characterize the traffic demand of the first network cell. Illustratively, the traffic demand may be a occupancy of time-frequency resources by a PDSCH of the first network cell. As yet another example, the traffic demand may be determined based on the number of users of the first network cell, the type of service subscribed to by the users, the level of demand of the service for communication quality, and the like. It should be noted that the traffic demand may also be other parameters capable of characterizing the traffic demand, which is not limited in this respect.

In an embodiment, in the case that the service requirement parameter of the first network cell is a 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 step a1 and step a 2.

Step a1, obtaining a plurality of historical PDSCH resource amounts. And each historical PDSCH resource amount is the time-frequency resource occupation amount of the historical PDSCH of the first network cell.

Each historical PDSCH resource amount may illustratively be a resource occupancy of the first network cell within one time slot of the downlink physical channel.

For example, to improve the calculation accuracy, the time-frequency resource occupation amount of the PDSCH of the first network cell in a plurality of time slots within the historical preset time period 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 conditions and specific requirements, for example, a time period within seven days from the current time may be used as the preset time period, which is not specifically limited.

For example, to increase computational accuracy, multiple historical PDSCHs may correspond to different dates within the same time period or within the same time period of the same date. For example, multiple historical PDSCHs are collected within 7:00-8:00 of each day.

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

Step A2, estimating the time-frequency resource demand of the first network cell based on the plurality of historical PDSCH resource quantities.

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

In another example, a weighted calculation may be performed on a plurality of historical PDSCH resource amounts to obtain a time-frequency resource demand of the first network cell. For example, the weighting factor of each historical PDSCH resource amount may be inversely proportional to the time difference between its corresponding time and the current time.

It should be noted that other ways may also be adopted to estimate the time-frequency resource demand of the first network cell at the current time.

Through the step a1 and the step a2, the past PDSCH can be used to estimate the PDSCH at the current time, and since the traffic demand of the first network cell has a certain similarity in a period of time, the traffic demand parameter of the first network cell can be accurately calculated, thereby improving the accuracy of resource allocation.

S420, in the time-frequency resources of the hybrid PDCCH, allocating first time-frequency resources corresponding to the service requirement parameters for the first network cell.

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 of the time-frequency resource, and the second network cell may occupy the remaining part of the time-frequency resource. 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, in order to improve the capacity of the PDSCH, the time-frequency resource occupancy of the hybrid PDCCH is less than or equal to the sum of the resource occupancy of the PDSCH of the first network cell and the resource occupancy of the PDSCH of the second network cell in the original scheme.

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

It should be noted that other manners may also be adopted to allocate and combine the PDCCH in the time-frequency resource of the first time slot of the downlink physical channel, for example, the first 3 characters are allocated as the time-frequency resource of the mixed PDCCH, and the like, which is not limited in this respect.

By 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 speed of the LTE PDSCH and the speed of the NR PDSCH are increased, the DSS performance is improved, the network performance is improved, and the utilization rate of network resources is increased.

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

Illustratively, the first time-frequency resource may be allocated for the first network cell in CCE units.

After introducing S420, S430 will be explained next.

S430, allocating 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 the PDCCH information of the second network cell compressed according to a preset compression ratio into the second time-frequency resources.

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

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

In one example, in case that 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 connection number of the second network cell, under the condition that the preset compression ratio is greater than or equal to 1, after the PDCCH information is compressed according to the preset compression ratio, the PDCCH information obtained by compression is 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 then mapped into the second time-frequency resource.

According to the method for allocating the time-frequency resources, 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, the first time-frequency resources with enough quantity can be allocated to 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 can be 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, the time-frequency resource waste caused by fixed allocation shares can be avoided, and the time-frequency resource utilization rate can be improved.

It should be noted that, the method for allocating time-frequency resources provided in this embodiment of the present application may improve the maximum connection number of communicable users of a first network cell by compressing PDCCH information while ensuring the maximum connection number of communicable users of the first network cell, and for a second network cell with a lower priority. Illustratively, if the existing scheme is adopted, users of 1600 first network cells can be connected at most, and users of 800 second network cells can be connected at most. By the embodiment of the application, the user connection of 1600 first network cells is ensured, and the connection quantity of the second network cells can be increased to 1600, so that the user capacity of the first network cells is ensured, and the user capacity of the second network cells is increased. Illustratively, in a specific scenario of a low-frequency band (700M/800M/900M) and a small bandwidth (10M/15M/20M), the user capacities of the first network cell and the second network cell can be greatly improved.

Furthermore, it should be further noted that, in the embodiment of the present application, by compressing PDCCH information, the number of CCEs of the PDCCH of the second network cell can be increased, that is, the capacity of the user that can be scheduled by 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 accelerates the wide coverage process of the 5G network while considering the performance of the 4G network. The method has the advantages that the reliability and completeness of DSS technical schemes such as low-frequency band and small bandwidth are guaranteed, meanwhile, the network building period is shortened, and the network building 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 step B1 and step B2.

Step 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 time-frequency resource reference occupancy 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 an actual requirement, which is not described again.

Step B2, the ratio is determined as the preset compression ratio.

Illustratively, if the second time-frequency resource occupies half of a certain character, and the time-frequency resource standard 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 the preset compression ratio, i.e., the following step B3-step B6.

Step B3, acquiring the service requirement parameter of the second network cell. The service requirement parameter of the second network cell may be a parameter capable of characterizing the service requirement of the second network cell.

It should be noted that, a manner of 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 reference may be made to the above-mentioned part of the present application in combination with the relevant description of step a1 and step a2, which is not described again here.

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

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

In one embodiment, it may include time-frequency resource demands corresponding to multiple parameter value ranges. And 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: time-frequency resource demand P1 corresponding to the value range [ L1, L2), and time-frequency resource demand 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, it is determined that the time-frequency resource requirement of the second network cell is P2.

It should be noted that the second corresponding relationship may be determined according to a historical 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 corresponding relationship may be a ratio or a relationship function between the service requirement parameter of the second network cell and the time-frequency resource requirement of the second network cell, which is not particularly limited.

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

Continuing with the previous 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 to the second network cell in step S430.

Step B6, the ratio is determined as the preset compression ratio.

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

By 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 distribution 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, the embodiment of the present application may also use other ways to calculate the preset compression ratio, and this is not particularly limited.

Based on the same inventive concept, fig. 5 shows a schematic flow diagram of another method for allocating time-frequency resources provided in the embodiment of the present application. The embodiments of the present application are optimized based on the embodiments described above, and the embodiments of the present application may be combined with various alternatives in one or more of the embodiments described above.

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

S510, obtaining a service requirement parameter of the first network cell. 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.

S510 is similar to S410, and reference may be made to specific contents of S410, which are not described herein again.

S520, under the condition that the service requirement parameter is smaller than or equal to the first service requirement threshold value, the special time frequency resource in the time frequency resources of the hybrid PDCCH is determined as the first time frequency resource.

For the first service requirement threshold, it may be set according to an actual situation and a specific requirement, 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 specifically limited.

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. And 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 rest 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 can select different values according to actual conditions and specific requirements, which are not described again.

For example, in the case that N is 2 and M is 1, fig. 6 illustrates a schematic diagram of an exemplary allocation scheme of time-frequency resources of a downlink physical channel provided in 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 resources of the hybrid PDCCH may be the time-frequency resources of the first 2 symbols in one slot of a 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 a shared time frequency resource of LTE and NR.

S530, allocating dedicated 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 the first time-frequency resource corresponding to the first network cell, which may be referred to as LTE PDCCH.

And S540, in the time frequency resource of the mixed PDCCH, determining the shared time frequency resource as a second time frequency resource.

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

And S550, distributing the shared time-frequency resource 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 resource.

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

According to the allocation method of the time-frequency resources 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, the first time-frequency resources with enough amount can be allocated to 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 can be 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, the time-frequency resource waste caused by fixed allocation share is avoided, and the time-frequency resource utilization rate is improved.

In some embodiments, the method for allocating time-frequency resources may further include: and allocating the downlink physical channel except the rest time-frequency resources of the mixed PDCCH to the PDSCH of the first network cell and the PDSCH of the second network cell in a frequency division multiplexing mode according to the preset allocation proportion of the PDSCH in the frequency direction. For example, with reference to fig. 6, if the bandwidth of the downlink physical channel in the frequency domain direction is [ f1, f2], then [ f1, f3) 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, before S420, the method for allocating time-frequency resources may further include the following steps D1 and D2.

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

It should be noted that, for the service demand of the second network cell, reference may be made to the above-mentioned part of the embodiment of the present application in conjunction with the relevant description of step B3, and details are not repeated here.

And step D2, when the service demand of the first network cell is less than or equal to the first service demand threshold and the service demand of the second network cell is greater than the second service demand threshold, taking all the time-frequency resources of the first N symbols as the time-frequency resources of the hybrid PDCCH.

The second service requirement threshold may be set according to an actual situation and a specific requirement, 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 specifically limited.

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

And step D3, under the condition that the service demand of the first network cell is less than or equal to the first service demand threshold and the service demand of the second network cell is greater than the second service demand threshold, allocating part of the time-frequency resources in the first N symbols as the time-frequency resources of the hybrid PDCCH.

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

And D4, using part of the time frequency resources in the time frequency resources of the hybrid PDCCH as the first time frequency resources. Illustratively, the time-frequency resource of the first Q symbols may be taken as the first time-frequency resource. For example, with continued reference to fig. 7, the time-frequency resources in the region a in fig. 7 may be used.

In step D5, the remaining time-frequency resources of the hybrid PDCCH except the first time-frequency resources may be used as second time-frequency resources. For example, the partial time frequency resource of the first remaining N-Q symbols on the frequency domain is determined as the second time frequency resource. For example, with 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.

Optionally, the frequency bandwidth of the second time-frequency resource in the frequency domain 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, 1/2 may be the entire bandwidth of the remaining N-Q symbols in the frequency domain, i.e., 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 whole frequency band width of the remaining N-Q symbol in the frequency domain, which is not limited in particular.

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 for 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 is used 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 bandwidth required to satisfy the PDSCH of the second network cell may be determined, and the frequency bandwidth may be determined as the frequency bandwidth of the second time-frequency resource.

Still optionally, 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 along with the change of the frequency bandwidth of the PDSCH of the second network cell.

Correspondingly, with reference to fig. 7, the time-frequency resources from the Q +1 th symbol to the last symbol may be used as the time-frequency resources of the PDSCH of the first network cell, for example, the time-frequency resources of the 2 nd to 14 th symbols may be used as the time-frequency resources of the PDSCH of the first network cell, so that the capacity of the PDSCH cell of the first network cell may be improved. Optionally, the CCE aggregation level of the first network cell may be increased according to the time-frequency resources of the PDSCH of the first network cell, so as to improve the communication quality of the edge user of the first network cell.

Based on the same inventive concept, fig. 8 is a schematic flowchart illustrating another time-frequency resource allocation method provided in the embodiment of the present application. The embodiments of the present application are optimized based on the above embodiments, and the embodiments of the present application may be combined with various alternatives in one or more of the above embodiments.

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

S810, acquiring a service demand parameter of the first network cell. 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.

S810 is similar to S410, and reference may be made to specific contents of S410, which are not described herein again.

S820, under the condition that the service demand is greater than the first demand threshold, at least one time-frequency resource unit corresponding to the service demand parameter is determined in the frequency domain direction of the shared time-frequency resource, and the dedicated time-frequency resource and the at least one time-frequency resource unit are jointly used 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 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. For specific contents of the hybrid PDCCH, reference may be made to the relevant description of the foregoing part in conjunction with S520 in the embodiment of the present application, and details are not described here again.

For example, in the case that N is 2 and M is 1, fig. 9 shows a schematic diagram of an allocation scheme of time-frequency resources of another exemplary downlink physical channel provided in 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 and 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 region in which the region B and the region C are added, 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 the first corresponding relationship between the service demand parameter and the time-frequency resource demand.

And for the first corresponding relation, 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, it is determined that the time-frequency resource requirement of the second network cell is W2.

It should be noted that the first corresponding relationship may be determined according to a historical ratio of an actual resource occupation amount of the PDCCH of the first network cell to an actual occupation amount of the PDSCH.

For another example, after determining the first time-frequency resource demand amount corresponding to the service demand parameter of the first network cell according to the first corresponding relationship, the first time-frequency resource amount may be increased or decreased according to parameters such as the service type, the communication quality, and the communication demand.

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

Step E2, 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 using the time-frequency resource unit of the first resource demand as at least one time-frequency resource unit.

Exemplarily, a time-frequency resource unit corresponding to the first resource requirement may be determined in CCE units.

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

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

Correspondingly, the time frequency resource corresponding to the region a plus the time frequency resource corresponding to the region B may be allocated to the first network cell.

S840, determining the 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 time-frequency resources of the hybrid PDCCH.

For example, the time-frequency resources corresponding to the remaining region except the region B, i.e., the region C, may be determined as the second time-frequency resources.

And S850, distributing the residual time-frequency resource units 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. Illustratively, PDCCH information of the second network cell may be mapped into the second time-frequency resource.

As shown in fig. 9, the time-frequency resource allocation scheme provided in this embodiment of the present application may dynamically adjust the ratio between the first network cell and the second network cell in the frequency domain direction of the shared time-frequency resource between the first network cell and the second network cell according to the service requirement parameter of the first network cell, thereby improving the flexibility of resource allocation.

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

It should be noted that 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, and the like, which is not particularly limited.

To facilitate overall understanding of the method for allocating time-frequency resources provided in the embodiment of the present application, fig. 10 shows a flowchart of an exemplary method for allocating time-frequency resources provided in the embodiment of the present application.

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

S1001, acquiring a service requirement parameter of a first network cell.

Illustratively, under the condition that the service priority of the LTE cell is higher, 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. The DSS base station may be a base station supporting DSS technology, among others.

S1002, judging whether the service requirement parameter of the first network cell is larger than a first service requirement threshold value. If the judgment result is negative, skipping to step S1003; if the determination result is yes, step S1006 is skipped.

And S1003, when the service requirement parameter of the first network cell is smaller than or equal to the first service requirement threshold value, judging whether the service requirement parameter of the second network cell is larger than the second service requirement threshold value. If the judgment result is yes, jumping to step S1004; if the determination result is no, step S1005 is skipped.

And S1004, when the service requirement parameter of the second network cell is greater than a second service requirement threshold value, allocating all the 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 all the time-frequency resources of the 2 nd symbol in the time domain direction to the PDCCH of the second network cell, and allocating 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 manner.

For an example, the allocation scheme can be seen in fig. 6 above.

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

For example, with continued reference to fig. 7, the remaining time-frequency resources in the 2 nd symbol, except the time-frequency resources allocated to the PDCCH of the second network cell, 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 and the same frequency band may also be 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, in the time-frequency resource of the 2 nd symbol, 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.

S1007, using all time-frequency resources of the 1 st symbol and at least one time-frequency resource unit in the 2 nd symbol as a first time-frequency resource, allocating the first time-frequency resource to the PDCCH of the first network cell, using the remaining time-frequency resources of the 2 nd symbol except the at least one time-frequency resource unit as a second time-frequency resource, and allocating the second time-frequency resource to the second network cell. And allocating 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.

After the time-frequency resource allocation method provided in the embodiment of the present application is introduced through fig. 4 to fig. 10, a method for processing PDCCH information provided in the embodiment of the present application is explained next.

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

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

S1110, obtain first PDCCH information corresponding to the first network cell and second PDCCH information corresponding to the second network cell.

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

S1120, obtain a first time-frequency resource corresponding to the first network cell, and obtain 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 requirement parameter of the first network cell in the time-frequency resources of the 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.

It should be noted that specific implementation manners of the first time-frequency resource and the second time-frequency resource may refer to specific requirements of the foregoing portions of the embodiments of the present application, and details thereof are not described again.

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

In an embodiment, the resource mapping may be performed in CCE units, which is not described herein again.

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

In an embodiment, resource mapping may be performed on the compressed second PDCCH information by taking CCE as a unit, which is not described herein again.

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

And G1, acquiring the CCE aggregation level before compression.

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

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

Step G3, determine the product as the compressed CCE aggregation level. That is, the CCE aggregation level after compression 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 previous example, the CCE aggregation level after compression may be 2, i.e., the PDSCH information after compression may be mapped into 2 CCEs.

According to the method for processing the PDCCH information provided by the embodiment of the application, the first PDCCH information of the first network cell can be mapped to the first time-frequency resource, and the first time-frequency resource is a sufficient amount of first time-frequency resource which is preferentially allocated to the PDCCH of the first network cell 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, so that a sufficient PDCCH resource space can be provided for the first network cell. And the second PDCCH information can be compressed and mapped to a 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 resources, so that a sufficient amount of the second time-frequency resources can be mapped to a small amount of the second time-frequency resources in a compression mode, and the distribution 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 distribution share and improving the utilization rate of the time-frequency resources.

Based on the same inventive concept, the embodiment of the present application further provides a device for allocating time-frequency resources, as in the following embodiments.

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

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

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

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

a first resource allocation module 1220 configured to:

under the condition that the service requirement parameter is smaller than or equal to a first service requirement 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 a second resource allocation module 1230 configured to:

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

a first resource allocation module 1220 configured to:

and a second resource allocation module 1230 configured to:

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

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

the apparatus 1200 for allocating time-frequency resources further includes a resource amount obtaining 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 apparatus 1200 for allocating time-frequency resources further includes: the device comprises 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 apparatus 1200 for allocating time-frequency resources further includes: the device 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 apparatus 1200 for allocating time-frequency resources shown in fig. 12 may perform each step in the method embodiments shown in fig. 4 to fig. 10, and implement each process and effect in the method embodiments shown in fig. 4 to fig. 10, which are not described herein again.

The apparatus for allocating time-frequency resources provided in this embodiment may allocate, in the time-frequency resources of a mixed PDCCH multiplexed between a first network cell and a second network cell, a sufficient amount of first time-frequency resources to the PDCCH of the first network cell according to a traffic demand of the first network cell having a higher resource priority, and allocate remaining time-frequency resources in the mixed PDCCH, except the first time-frequency resources, to the second network cell, so that allocation shares of the mixed PDCCH between the first network cell and the second network cell may be flexibly adjusted according to the traffic demand of the first network cell, thereby avoiding time-frequency resource waste caused by fixed allocation shares, and improving a time-frequency resource utilization rate.

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

Fig. 13 is a schematic diagram illustrating an apparatus for processing PDCCH information in this embodiment, as shown in fig. 13, an apparatus 1300 for processing PDCCH information includes an information obtaining module 1310, a resource obtaining 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 priority on resources in an LTE cell and an NR cell, and the second network cell is a cell with a low priority on resources 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 the time-frequency resources of a mixed PDCCH, the second time-frequency resource is a remaining resource in the mixed PDCCH except the first time-frequency resource, 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 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;

It should be noted that the processing apparatus 1300 of PDCCH information shown in fig. 13 may perform each step in the method embodiment shown in fig. 11, and implement each process and effect in the method embodiment shown in fig. 11, which is not described herein again.

The processing apparatus for PDCCH information provided in this embodiment of the present application may map the first PDCCH information of the first network cell to the first time-frequency resource, and since the first time-frequency resource is a sufficient amount of the first time-frequency resource that is preferentially allocated to the PDCCH of the first network cell according to the service requirement 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, the sufficient PDCCH resource space can be provided for the first network cell. And the second PDCCH information can be compressed and mapped to a 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 resources, so that a sufficient amount of the second time-frequency resources can be mapped to a small amount of the second time-frequency resources in a compression mode, and the distribution 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 distribution share and improving the utilization rate of the time-frequency resources.

Based on the same inventive concept, the embodiment of the present application further provides a base station, and the base station may include a time-frequency resource allocation device and a PDCCH information processing device.

For the time-frequency resource allocation device, reference may be made to the related description in the above-mentioned part of the embodiment of the present application with reference to fig. 12, and for the PDCCH information processing device, reference may be made to the related description in the above-mentioned part of the embodiment of the present application with reference to fig. 14.

For convenience of understanding, fig. 14 shows a schematic structural diagram of an exemplary base station provided in an embodiment of the present application.

As shown in fig. 14, the apparatus for allocating time-frequency resources, which is referred to as a hybrid PDCCH resource mapping controller, may obtain 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, and determine a second time-frequency resource and a preset compression ratio of the PDCCH of the NR cell according to the service requirement parameter of the LTE cell and the service requirement parameter of the NR cell.

Next, a processing apparatus of PDCCH information of a base station will be described in order by processing flows of DCI information of LTE cell users and DCI information of NR cell users.

For example, after obtaining the DCI information of the LTE cell user, the PDCCH information processing apparatus may perform CRC addition processing (CRC assignment), 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) on the DCI information, and then transmit the DCI information through the PDCCH Channel of the LTE cell in the hybrid PDCCH Channel.

When mapping the RE, the first time-frequency resource of the PDCCH of the LTE cell transmitted by the time-frequency resource allocation apparatus may be received, and the CCE information of the LTE cell may be received. And then mapping the DCI information to the first time-frequency resource in the form of CCE.

For another example, after obtaining the DCI Information of the NR cell user, the PDCCH Information processing apparatus may perform Multiplexing (Information Element Multiplexing), CRC addition (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 DCI Information, and then transmit the DCI Information through the PDCCH Channel of the NR cell in the mixed PDCCH Channel.

When the resource compression processing is carried out, the preset compression ratio transmitted by the distribution device of the time-frequency resource can be received, and the DCI information of the users in the NR cell is compressed according to the preset compression ratio to obtain the compressed DCI information.

And during the RE mapping process, receiving a second time-frequency resource of the PDCCH of the NR cell transmitted by the allocating device of the time-frequency resource, and acquiring CCE information of the NR cell. And then mapping the DCI information to a second time frequency resource in a CCE form.

As will be appreciated by one skilled in the art, aspects of the present application may be embodied as a system, method or program product. Accordingly, various aspects of the present application may be embodied in the form of: an entirely hardware embodiment, an entirely software embodiment (including firmware, microcode, etc.) or an embodiment combining hardware and software aspects that may all generally be referred to herein as a "circuit," module "or" system.

An electronic device 1500 according to this embodiment of the application is described below with reference to fig. 15. The electronic device 1500 shown in fig. 15 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present application.

As shown in fig. 15, electronic device 1500 is in the form of a general purpose computing device. Components of electronic device 1500 may include, but are not limited to: the at least one processing unit 1510, the at least one memory unit 1520, and a bus 1530 that couples various system components including the memory unit 1520 and the processing unit 1510.

Where the memory unit stores program code that may be executed by the processing unit 1510 to cause the processing unit 1510 to perform steps according to various exemplary embodiments of the present application as described in the above-mentioned "exemplary methods" section of the present specification.

The storage unit 1520 may include readable media in the form of volatile storage units, such as a random access memory unit (RAM)15201 and/or a cache memory unit 15202, and may further include a read only memory unit (ROM) 15203.

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 of which, or some combination thereof, may comprise an implementation of a network environment.

Bus 1530 may be any 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 input/output (I/O) interfaces 1550.

Also, the electronic device 1500 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the internet) via the network adapter 1560.

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

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

Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, 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 (which may be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which may be a personal computer, a server, a terminal device, or a network device, etc.) to execute the method according to the embodiments of the present application.

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

In some possible embodiments, various aspects of the present application may also be implemented in the form of a program product comprising program code for causing a terminal device to perform the steps according to various exemplary embodiments of the present application described in the above-mentioned "exemplary methods" 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 propagated data signal with readable program code embodied therein, either in baseband or as part of a carrier wave.

Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof.

A readable signal medium may 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, 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, as well as 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 and partly on a remote computing device, or entirely on the remote computing device or server.

In situations involving remote computing devices, the remote computing devices 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 external computing devices (e.g., through the internet using an internet service provider).

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

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

Moreover, although the steps of the methods herein are depicted in the drawings in a particular order, this does not require or imply that the steps must be performed in this particular order, or that all of the depicted steps must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions, etc.

Through the description of the above embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, and may also be implemented by software in combination with necessary hardware.

Therefore, 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 (which may be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which may be a personal computer, a server, a mobile terminal, or a network device, etc.) to execute the method according to the embodiments of the present application.

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

This application is intended to cover any variations, uses, or adaptations of the invention 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 invention 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 is characterized by comprising the following steps:

acquiring a service demand parameter of a first network cell;

allocating a first time-frequency resource corresponding to the service demand parameter to the first network cell in a time-frequency resource of a mixed Physical Downlink Control Channel (PDCCH), wherein the mixed PDCCH is a PDCCH multiplexed by the first network cell and a 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.

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

the allocating, to the first network cell, a first time-frequency resource corresponding to the service demand parameter includes:

determining a dedicated time-frequency resource in the time-frequency resources of the hybrid PDCCH as a first time-frequency resource when the service requirement parameter is less than or equal to a first service requirement threshold value; allocating the dedicated time-frequency resources for the first network cell;

and, the allocating a second time-frequency resource, except the first time-frequency resource, of the time-frequency resources of the hybrid PDCCH to a second network cell includes:

determining the shared time-frequency resource as the second time-frequency resource in the time-frequency resources of the hybrid PDCCH; allocating the shared time-frequency resource to the second network cell.

3. The method according to claim 1, wherein the time-frequency resources of the hybrid PDCCH are first time-frequency resources of N symbols of a downlink physical channel in a time domain, time-frequency resources of M symbols of the first time-frequency resources of N symbols are dedicated time-frequency resources of the first network cell, and time-frequency resources of the remaining N-M symbols are shared time-frequency resources 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;

under the condition that the service requirement parameter is larger than the first service requirement threshold value, 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; the dedicated time-frequency resource and the at least one time-frequency resource unit are jointly used as the first time-frequency resource; allocating the dedicated time-frequency resource and the at least one time-frequency resource element to a first network cell;

and 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, the allocating comprising:

determining the 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 time-frequency resources of the mixed PDCCH; and allocating the residual time-frequency resource units to the second network cell.

4. The method of claim 3,

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

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 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 resource demand as the at least one time-frequency resource unit.

5. The method of 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 following steps:

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

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 determining the ratio as a preset compression ratio.

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

acquiring a service requirement parameter of the 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;

and determining the ratio as a preset compression ratio.

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

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 requirement parameter of the first network cell in time-frequency resources of a mixed PDCCH (physical downlink control channel), 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;

and 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. An apparatus for allocating time-frequency resources, comprising:

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

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

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

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

11. An apparatus for processing PDCCH information, comprising:

an information obtaining module, 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 among an LTE cell and an NR cell, and the second network cell is a cell with a low resource priority among the LTE cell and the NR cell;

a resource obtaining module, configured to obtain a first time-frequency resource corresponding to the first network cell and obtain 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 mixed PDCCH, the second time-frequency resource is a remaining resource in the mixed PDCCH except the first time-frequency resource, 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, configured to map the first PDCCH information to the 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 the second time-frequency resource.

12. A base station, comprising:

the apparatus for allocating time-frequency resources according to claim 10; and (c) a second step of,

the apparatus for processing PDCCH information according to 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 for allocating time-frequency resources according to any one of claims 1 to 7 or the method for processing PDCCH information according to any one of claims 8 to 9, via execution of the executable instructions.

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