CN103428883A - Dispatching method and equipment of physical downlink control channel resources - Google Patents

Abstract

The invention discloses a dispatching method and equipment of physical downlink control channel resources. The dispatching method comprises the steps that the PUSCH time domain dispatching priority of each uplink user and the PDSCH time domain dispatching priority of each downlink user are obtained before each TTI dispatches the PDCCH resources, the weighted value for dispatching the PDCCH of each user is determined, the priority for dispatching the PDCCH resources of each user is obtained, the priorities for dispatching the PDCCH resources are ranked in a joint mode according to a set ranking rule, the PDCCH resources are dispatched for the uplink user and the downlink user sequentially according to a ranking result, thus, self-adaption adjustment PDCCH weight distribution is conducted according to the quality of an uplink channel and a downlink channel and the variation of the data volume of the uplink service and the downlink service, the user with poor channel quality and little requirement for resources obtains fewer PDCCH resources, and the utilization rate of the PDCCH resources is improved.

Description

Scheduling method and device for physical downlink control channel resources

Technical Field

The invention relates to the field of wireless communication, in particular to a method and equipment for scheduling Physical Downlink Control Channel (PDCCH) resources based on a Long Term Evolution (LTE) system.

Background

In an LTE (Long Term Evolution) system, uplink and downlink resource scheduling information (e.g., information such as resource allocation result and coding modulation scheme) is carried by a PDCCH (physical downlink Control Channel). The DCI (Downlink Control Information) in the PDCCH includes resource allocation and other Control Information on one or more UEs. After acquiring the PDCCH, each UE determines a resource location corresponding to a PDSCH (Physical Downlink Shared Channel) for transmitting Downlink data and determines a resource location corresponding to a PUSCH (Physical Uplink Shared Channel) for transmitting Uplink data by demodulating DCI in the PDCCH.

That is, both uplink data transmission and downlink data transmission require the PDCCH to carry scheduling information, but because the PDCCH resource is limited, a problem of how to allocate the PDCCH resource for the uplink data transmission link and the downlink data transmission link arises. There are two current ways to solve this problem: one mode is to determine PDCCH resources used for transmitting uplink and downlink data according to uplink and downlink service resource requirements; the other mode is to determine the maximum number of CCE (Control Channel Element) resources that can be allocated to the uplink and downlink data transmission links according to the quality of the uplink and downlink channels, and ensure that CCE resources of the PDCCH are fairly scheduled and used by the uplink and downlink data transmission links.

With the popularization of data services in mobile networks, generally, the uplink and downlink of the data services are asymmetric, that is, the requirements of the uplink services and the downlink services are different. For example: downloading services, which have higher requirements on the QoS (Quality of Service) of a downlink data transmission link; the requirement for the QoS (Quality of Service) of the uplink data transmission link is relatively low for the mail sending Service.

However, by adopting the two existing methods, the PDCCH resource for transmitting the uplink and downlink data is determined singly according to the uplink and downlink service resource requirement or the uplink and downlink channel quality, the PDCCH resource is allocated preferentially for executing the mail sending service, so that the downloading service is in a waiting state, and the PDCCH resource is allocated lagged for executing the downloading service, that is, the PDCCH resource is allocated preferentially for executing the mail sending service, so that the downloading service with higher requirement on the downlink data transmission link is delayed to be executed, network congestion is easy to occur in the communication system, and the utilization rate of the PDCCH resource is lower.

Disclosure of Invention

The embodiment of the invention provides a method and equipment for scheduling physical downlink control channel resources, which are used for solving the problem of low utilization rate of PDCCH resources in the prior art.

A scheduling method of physical downlink control channel resources comprises the following steps:

before Physical Downlink Control Channel (PDCCH) resources are distributed in each Transmission Time Interval (TTI), the time domain scheduling priority of a Physical Uplink Shared Channel (PUSCH) of each uplink user and the time domain scheduling priority of a Physical Downlink Shared Channel (PDSCH) of each downlink user are obtained;

when the updating period of the PDCCH distribution weight is reached, calculating the weight value of each uplink user distributed PDCCH and the weight value of each downlink user distributed PDCCH in the current updating period according to the channel quality value of the uplink user and the downlink user and the uplink service data volume;

obtaining a priority value of the PDCCH resource allocation of each uplink user according to the acquired PUSCH time domain scheduling priority of each uplink user and the determined weight value of the PDCCH allocated to the uplink user, and obtaining a priority value of the PDCCH resource allocation of each downlink user according to the acquired PDSCH time domain scheduling priority of each downlink user and the determined weight value of the PDCCH allocated to the downlink user;

according to a set sequencing rule, performing combined sequencing on the obtained priority value of the PDCCH resource allocation of each uplink user and the priority value of the PDCCH resource allocation of each downlink user;

and according to the sequencing result, sequentially allocating PDCCH resources for uplink and downlink users.

Acquiring a Physical Uplink Shared Channel (PUSCH) time domain scheduling priority of each uplink user and a Physical Downlink Shared Channel (PDSCH) time domain scheduling priority of each downlink user, specifically comprising:

reading the PUSCH time domain scheduling priority of each uplink user from the uplink time domain scheduler, and normalizing the PUSCH time domain scheduling priority of each uplink user to obtain the normalized PUSCH time domain scheduling priority of the uplink user;

and reading the PDSCH time domain scheduling priority of each downlink user from the downlink time domain scheduler, and normalizing the PDSCH time domain scheduling priority of each downlink user to obtain the normalized PDSCH time domain scheduling priority of the downlink user.

Normalizing the PUSCH time domain scheduling priority of each uplink user to obtain the normalized PUSCH time domain scheduling priority of the uplink user, and the method comprises the following steps:

normalizing the PUSCH time domain scheduling priority of each uplink user in the following mode to obtain the normalized PUSCH time domain scheduling priority of the uplink user:

$p_{\mathrm{PUSCH}\_i}=\frac{p_{\mathrm{PUSCH}\_i}\left(t\right)}{P_{\max }\left(t\right)},i=\mathrm{1,2},...,K_{\mathrm{UL}};$

wherein p is_{PUSCH_i}(t) PUSCH time-domain scheduling priority, P, of uplink user i at time t_max(t) is the maximum value of the PUSCH time domain scheduling priorities of all uplink users, p_{PUSCH_i}To obtain the normalized PUSCH time-domain scheduling priority, K, of the uplink user i_ULThe number of the uplink users;

normalizing the PDSCH time domain scheduling priority of each downlink user to obtain the normalized PDSCH time domain scheduling priority of the downlink user, and the method comprises the following steps:

normalizing the PDSCH time domain scheduling priority of each downlink user in the following mode to obtain the normalized PDSCH time domain scheduling priority of the downlink user:

$p_{\mathrm{PDSCH}\_j}=\frac{p_{\mathrm{PDSCH}\_j}\left(t\right)}{P_{\max }\left(t\right)},j=\mathrm{1,2},...,K_{\mathrm{DL}};$

wherein p is_{PDSCH_j}(t) PDSCH time-domain scheduling priority, P, of downlink user j at time t_max(t) is the maximum value of PDSCH time domain scheduling priority of all downlink users, p_{PDSCH_j}To obtain the normalized PDSCH time-domain scheduling priority, K, of the downlink user j_DLThe number of downlink users.

Calculating the weight value of each uplink user distributed PDCCH and the weight value of each downlink user distributed PDCCH in the current period according to the channel quality value of the uplink user and the downlink service data volume, wherein the method comprises the following steps:

determining the average uplink channel quality value according to the channel measurement value of the uplink user, and calculating the average uplink user traffic value according to the buffer status report reported by the user;

determining the average downlink channel quality value according to the channel feedback value of the downlink user, and calculating the average downlink user traffic value according to the downlink data cache queue of the base station;

calculating a weight control factor of the PDCCH and an average weight control factor of the PDCCH by using the determined average uplink channel quality value, the determined average downlink channel quality value, the calculated average traffic volume value of the uplink user and the calculated average traffic volume value of the downlink user;

and comparing the calculated weight control factor of the PDCCH with the average weight control factor of the PDCCH, and determining the weight value of the PDCCH allocated to each uplink user and the weight value of the PDCCH allocated to each downlink user in the current period according to the comparison result.

Calculating a weight control factor of the PDCCH by using the determined uplink average channel quality value, the determined downlink average channel quality value, the calculated uplink user average traffic volume value and the downlink user average traffic volume value, wherein the weight control factor comprises:

calculating a weight control factor of the PDCCH by the following method:

$p\left(t\right)=\frac{{\mathrm{BUF}}_{\mathrm{UL}}\left(t\right)}{{\mathrm{BUF}}_{\mathrm{DL}}\left(t\right)}*\frac{{\mathrm{CQI}}_{\mathrm{UL}}\left(t\right)}{{\mathrm{CQI}}_{\mathrm{DL}}\left(t\right)};$

wherein, BUF_UL(t) is the average traffic volume value, BUF, of the uplink user at time t_DL(t) is the average traffic volume value, CQI, of the downlink user at the time t_UL(t) average channel quality value, CQI, of the uplink at time t_DL(t) is the average channel quality value for the downlink at time t.

Calculating an average weight control factor for PDCCH, comprising:

calculating the average weight control factor of the PDCCH by the following method:

$\stackrel{\‾}{p}\left(t\right)=(1-\frac{1}{t_c})\stackrel{\‾}{p}(t-k)+\frac{1}{t_c}p\left(t\right);$

wherein,

is the average weight control factor of PDCCH at time t, p (t) is the weight control factor of PDCCH at time t, t_cFor updating the time window, k is an updating period value of the weight allocated to the PDCCH, and t-k is a moment which is k times longer than the t moment.

According to the comparison result, determining the weight value of each uplink user allocated PDCCH and the weight value of each downlink user allocated PDCCH in the current period comprises the following steps:

when the weight control factor of the PDCCH is smaller than the average weight control factor of the PDCCH, each uplink user distributes the weight value of the PDCCH to reduce the set weight step length, and each downlink user distributes the weight value of the PDCCH to increase the set weight step length;

when the weight control factor of the PDCCH is larger than the average weight control factor of the PDCCH, the weight value of the PDCCH allocated by each uplink user is increased by a set weight step length, and the weight value of the PDCCH allocated by each downlink user is decreased by the set weight step length;

when the weight control factor of the PDCCH is equal to the average weight control factor of the PDCCH, the weight value of the PDCCH allocated to each uplink user is kept unchanged, and the weight value of the PDCCH allocated to each downlink user is kept unchanged.

Therefore, according to the size relation between the weight control factor of the PDCCH and the average weight control factor of the PDCCH, the weight value of the PDCCH allocated by an uplink user and the weight value of the PDCCH allocated by a downlink user are changed, the PDCCH scheduling priority of the uplink user and the PDCCH scheduling priority of the downlink user are further changed, so that the users with better channel quality and high resource demand can obtain more PDCCH resources, the users with poorer channel quality and low resource demand can obtain less PDCCH resources, the waste of PDCCH resources is avoided, and the utilization rate of the PDCCH resources is improved.

Obtaining a priority value of the PDCCH resource allocation of each uplink user according to the acquired PUSCH time domain scheduling priority of each uplink user and the determined weight value of the PDCCH allocated to the uplink user, wherein the priority value comprises the following steps:

performing product operation on the acquired PUSCH time domain scheduling priority of each uplink user and the determined weight value of the PDCCH allocated to the uplink user, wherein the obtained product value is the priority value of the PDCCH resource allocated to the uplink user;

obtaining a priority value of the PDCCH resource allocation of each downlink user according to the acquired PDSCH time domain scheduling priority of each downlink user and the determined weight value of the PDCCH allocated to the downlink user, wherein the priority value comprises the following steps:

and performing product operation on the acquired PDSCH time domain scheduling priority of each downlink user and the determined weight value of the PDCCH allocated to the downlink user to obtain a product value which is the priority value of the PDCCH resource allocated to the downlink user.

A scheduling device of physical downlink control channel resources comprises:

an obtaining module, configured to obtain a Physical Uplink Shared Channel (PUSCH) time-domain scheduling priority of each uplink user and a Physical Downlink Shared Channel (PDSCH) time-domain scheduling priority of each downlink user before a Physical Downlink Control Channel (PDCCH) resource is allocated to each Transmission Time Interval (TTI);

the determining module is used for calculating the weight value of each uplink user distributed PDCCH and the weight value of each downlink user distributed PDCCH in the current updating period according to the channel quality value of the uplink and downlink users and the uplink and downlink service data volume when the updating period of the PDCCH distributed weights is reached;

the priority adjusting module is used for obtaining a priority value of the distributed PDCCH resources of each uplink user according to the acquired PUSCH time domain scheduling priority of each uplink user and the determined weight value of the distributed PDCCH of the uplink user, and obtaining a priority value of the distributed PDCCH resources of each downlink user according to the acquired PDSCH time domain scheduling priority of each downlink user and the determined weight value of the distributed PDCCH of the downlink user;

and the resource scheduling module is used for performing combined sequencing on the obtained priority value of the PDCCH resources allocated to each uplink user and the priority value of the PDCCH resources allocated to each downlink user according to a set sequencing rule, and sequentially allocating the PDCCH resources to the uplink and downlink users according to a sequencing result.

The acquisition module is specifically configured to acquire the PUSCH time-domain scheduling priority of each uplink user from the uplink time-domain scheduler, and normalize the PUSCH time-domain scheduling priority of each uplink user to obtain a normalized PUSCH time-domain scheduling priority of the uplink user;

and acquiring the PDSCH time domain scheduling priority of each downlink user from the downlink time domain scheduler, and normalizing the PDSCH time domain scheduling priority of each downlink user to obtain the normalized PDSCH time domain scheduling priority of the downlink user.

The obtaining module is specifically configured to normalize the PUSCH time-domain scheduling priority of each uplink user in the following manner, and obtain a normalized PUSCH time-domain scheduling priority of the uplink user:

$p_{\mathrm{PUSCH}\_i}=\frac{p_{\mathrm{PUSCH}\_i}\left(t\right)}{P_{\max }\left(t\right)},i=\mathrm{1,2},...,K_{\mathrm{UL}};$

wherein p is_{PUSCH_i}(t) PUSCH time-domain scheduling priority, P, of uplink user i at time t_max(t) is the maximum value of the PUSCH time domain scheduling priorities of all uplink users, p_{PUSCH_i}To obtain the normalized PUSCH time-domain scheduling priority, K, of the uplink user i_ULThe number of the uplink users;

and normalizing the PDSCH time domain scheduling priority of each downlink user in the following mode to obtain the normalized PDSCH time domain scheduling priority of the downlink user:

$p_{\mathrm{PDSCH}\_j}=\frac{p_{\mathrm{PDSCH}\_j}\left(t\right)}{P_{\max }\left(t\right)},j=\mathrm{1,2},...,K_{\mathrm{DL}};$

wherein p is_{PDSCH_j}(t) PDSCH time-domain scheduling priority, P, of downlink user j at time t_max(t) is the maximum value of PDSCH time domain scheduling priority of all downlink users, p_{PDSCH_j}To obtain the normalized PDSCH time-domain scheduling priority, K, of the downlink user j_DLThe number of downlink users.

The determining module is specifically configured to determine an average uplink channel quality value according to a channel measurement value of an uplink user, and calculate an average uplink traffic quantity value according to a buffer status report reported by the user; determining the average downlink channel quality value according to the channel feedback value of the downlink user, and calculating the average downlink user traffic value according to the downlink data cache queue of the base station; calculating a weight control factor of the PDCCH and an average weight control factor of the PDCCH by using the determined average uplink channel quality value, the determined average downlink channel quality value, the calculated average traffic volume value of the uplink user and the calculated average traffic volume value of the downlink user; and comparing the calculated weight control factor of the PDCCH with the average weight control factor of the PDCCH, and determining the weight value of the PDCCH allocated to each uplink user and the weight value of the PDCCH allocated to each downlink user in the current period according to the comparison result.

The determining module is specifically configured to calculate a weight control factor of the PDCCH in the following manner:

$p\left(t\right)=\frac{{\mathrm{BUF}}_{\mathrm{UL}}\left(t\right)}{{\mathrm{BUF}}_{\mathrm{DL}}\left(t\right)}*\frac{{\mathrm{CQI}}_{\mathrm{UL}}\left(t\right)}{{\mathrm{CQI}}_{\mathrm{DL}}\left(t\right)};$

wherein, BUF_UL(t) is the average traffic volume value, BUF, of the uplink user at time t_DL(t) is the average traffic volume value, CQI, of the downlink user at the time t_UL(t) average channel quality value, CQI, of the uplink at time t_DL(t) is the average channel quality value for the downlink at time t.

The determining module is specifically configured to calculate an average weight control factor of the PDCCH in the following manner:

$\stackrel{\‾}{p}\left(t\right)=(1-\frac{1}{t_c})\stackrel{\‾}{p}(t-k)+\frac{1}{t_c}p\left(t\right);$

wherein,

is the average weight control factor of PDCCH at time t, p (t) is the weight control factor of PDCCH at time t, t_cFor updating the time window, k is an updating period value of the weight allocated to the PDCCH, and t-k is a moment which is k times longer than the t moment.

The resource scheduling module is specifically configured to, when the weight control factor of the PDCCH is smaller than the average weight control factor of the PDCCH, decrease the weight value of the PDCCH allocated to each uplink user by a set weight step size, and increase the weight value of the PDCCH allocated to each downlink user by the set weight step size;

when the weight control factor of the PDCCH is larger than the average weight control factor of the PDCCH, the weight value of the PDCCH allocated by each uplink user is increased by a set weight step length, and the weight value of the PDCCH allocated by each downlink user is decreased by the set weight step length;

when the weight control factor of the PDCCH is equal to the average weight control factor of the PDCCH, the weight value of the PDCCH allocated to each uplink user is kept unchanged, and the weight value of the PDCCH allocated to each downlink user is kept unchanged.

Therefore, according to the size relation between the weight control factor of the PDCCH and the average weight control factor of the PDCCH, the weight value of the PDCCH allocated by an uplink user and the weight value of the PDCCH allocated by a downlink user are changed, the PDCCH scheduling priority of the uplink user and the PDCCH scheduling priority of the downlink user are further changed, so that the users with better channel quality and high resource demand can obtain more PDCCH resources, the users with poorer channel quality and low resource demand can obtain less PDCCH resources, the waste of PDCCH resources is avoided, and the utilization rate of the PDCCH resources is improved.

The resource scheduling module is specifically configured to perform product operation on the acquired PUSCH time domain scheduling priority of each uplink user and the determined weight value of the PDCCH allocated to the uplink user, and the obtained product value is a priority value of the PDCCH resource allocated to the uplink user;

and performing product operation on the acquired PDSCH time domain scheduling priority of each downlink user and the determined weight value of the PDCCH allocated to the downlink user to obtain a product value which is the priority value of the PDCCH resource allocated to the downlink user.

The invention has the following beneficial effects:

the method comprises the steps of obtaining a Physical Uplink Shared Channel (PUSCH) time domain scheduling priority of each uplink user and a Physical Downlink Shared Channel (PDSCH) time domain scheduling priority of each downlink user before distributing Physical Downlink Control Channel (PDCCH) resources in each Transmission Time Interval (TTI), determining a weight value of each uplink user distributed PDCCH and a weight value of each downlink user distributed PDCCH, obtaining a priority value of each uplink user distributed PDCCH resources according to the obtained PUSCH time domain scheduling priority of each uplink user and the determined weight value of the uplink user distributed PDCCH, obtaining a priority value of each downlink user distributed PDCCH resources according to the obtained PDSCH time domain scheduling priority of each downlink user and the determined weight value of the downlink user distributed PDCCH, and obtaining the obtained priority value of each uplink user distributed PDCCH resources and the obtained priority value of each downlink user distributed PDCCH resources according to a set sequencing rule And performing combined sequencing on the level values, and sequentially allocating PDCCH resources to uplink and downlink users according to the sequencing result, so that the PDCCH allocation weight is adaptively adjusted according to the uplink and downlink channel quality and the uplink and downlink service data volume change, so that users with poor channel quality and small resource requirements acquire less PDCCH resources, the waste of PDCCH resources is avoided, and the utilization rate of PDCCH resources is improved.

Drawings

Fig. 1 is a flowchart illustrating a method for scheduling physical downlink control channel resources according to a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a scheduling device for physically controlling downlink channel resources according to a second embodiment of the present invention.

Detailed Description

In order to achieve the object of the present invention, an embodiment of the present invention provides a method and an apparatus for scheduling physical downlink control channel resources, where before physical downlink control channel PDCCH resources are allocated for each transmission time interval TTI, a physical uplink shared channel PUSCH time-domain scheduling priority of each uplink user and a physical downlink shared channel PDSCH time-domain scheduling priority of each downlink user are obtained, a weight value of each uplink user allocated PDCCH and a weight value of each downlink user allocated PDCCH are determined, a priority value of each uplink user allocated PDCCH resource is obtained according to the obtained PUSCH time-domain scheduling priority of each uplink user and the determined weight value of the uplink user allocated PDCCH, and a priority value of each downlink user allocated PDCCH resource is obtained according to the obtained PDSCH time-domain scheduling priority of each downlink user and the determined weight value of the downlink user allocated PDCCH, and performing combined sequencing on the obtained priority value of the PDCCH resources allocated to each uplink user and the priority value of the PDCCH resources allocated to each downlink user according to a set sequencing rule, and sequentially allocating the PDCCH resources to the uplink and downlink users according to a sequencing result.

Therefore, the PDCCH distribution weight is adaptively adjusted according to the quality of the uplink and downlink channels and the change of the data volume of the uplink and downlink services, so that users with poor channel quality and low resource requirements can obtain less PDCCH resources, the waste of the PDCCH resources is avoided, and the utilization rate of the PDCCH resources is improved.

The following detailed description of various embodiments of the invention refers to the accompanying drawings.

The first embodiment is as follows:

as shown in fig. 1, a schematic flowchart of a method for scheduling physical downlink control channel resources according to an embodiment of the present invention is shown, where the method includes:

step 101: before Physical Downlink Control Channel (PDCCH) resources are allocated to each transmission time interval TTI, the time domain scheduling priority of a Physical Uplink Shared Channel (PUSCH) of each uplink user and the time domain scheduling priority of a Physical Downlink Shared Channel (PDSCH) of each downlink user are obtained.

In step 101, first, before allocating a PDCCH resource for a physical downlink control channel at each transmission time interval TTI, time-domain scheduling priority information of all uplink users PUSCH and time-domain scheduling priority information of all downlink users PDSCH are read from an uplink time-domain scheduler and a downlink time-domain scheduler, respectively.

For example: PUSCH time domain scheduling priority p of uplink user i at time t_{PUSCH_i}(t)，i＝1,2,...,K_UL，K_ULFor the number of all uplink users, the PDSCH time domain scheduling priority p of the downlink user j at the time t_{PDSCH_j}(t)，j＝1,2,...,K_DL，K_DLThe number of all downlink users.

It should be noted that each transmission time interval TTI is typically 1 ms.

And secondly, normalizing the read PUSCH time domain scheduling priority of each uplink user to obtain the normalized PUSCH time domain scheduling priority of the uplink user.

Specifically, the PUSCH time domain scheduling priority of each uplink user is normalized in the following manner, so as to obtain the normalized PUSCH time domain scheduling priority of the uplink user:

$p_{\mathrm{PUSCH}\_i}=\frac{p_{\mathrm{PUSCH}\_i}\left(t\right)}{P_{\max }\left(t\right)},i=\mathrm{1,2},...,K_{\mathrm{UL}};$

wherein p is_{PUSCH_i}(t) PUSCH time-domain scheduling priority, P, of uplink user i at time t_max(t) is the maximum value of the PUSCH time domain scheduling priorities of all uplink users, p_{PUSCH_i}To obtain the normalized PUSCH time-domain scheduling priority, K, of the uplink user i_ULThe number of the uplink users;

and normalizing the read PDSCH time domain scheduling priority of each downlink user to obtain the normalized PDSCH time domain scheduling priority of the downlink user.

Specifically, the PDSCH time domain scheduling priority of each downlink user is normalized in the following manner to obtain the normalized PDSCH time domain scheduling priority of the downlink user:

$p_{\mathrm{PDSCH}\_j}=\frac{p_{\mathrm{PDSCH}\_j}\left(t\right)}{P_{\max }\left(t\right)},j=\mathrm{1,2},...,K_{\mathrm{DL}};$

wherein p is_{PDSCH_j}(t) PDSCH time-domain scheduling priority, P, of downlink user j at time t_max(t) is the maximum value of PDSCH time domain scheduling priority of all downlink users, p_{PDSCH_j}To obtain the normalized PDSCH time-domain scheduling priority, K, of the downlink user j_DLThe number of downlink users.

Step 102: and determining the weight value of PDCCH allocated to each uplink user and the weight value of PDCCH allocated to each downlink user according to the channel quality value of the uplink user and the downlink service data volume of the uplink user and the downlink user.

In step 102, it is first determined whether an update cycle of PDCCH allocation weights has been reached.

Since the update period of the PDCCH allocation weights is longer than the transmission time interval, when determining the allocation weights of the PDCCH, it is necessary to determine whether the update period of the PDCCH allocation weights reaches, that is, when the update period of the PDCCH allocation weights does not reach, the PDCCH allocation weights are kept unchanged.

For example: the updating period of the PDCCH distribution weight is 10ms, the updating time of the last PDCCH distribution weight is T0, the time for acquiring all uplink user PUSCH time domain scheduling priority information and all downlink user PDSCH time domain scheduling priority information this time is T3, and when T3-T0=10, the updating period of the PDCCH distribution weight is determined to arrive; and when the T3-T0 is less than 10, determining that the updating period of the PDCCH distribution weight does not arrive, and executing subsequent operations according to the weight value of the distributed PDCCH determined at the T0 moment.

Secondly, when the updating period of the PDCCH distribution weight is reached, calculating the weight value of each uplink user distribution PDCCH and the weight value of each downlink user distribution PDCCH in the current updating period according to the channel quality value of the uplink user and the channel quality value of the downlink user and the uplink service data volume and the downlink service data volume.

Specifically, in the first step, the average uplink channel quality value is determined according to the channel measurement value of the uplink user, and the average uplink traffic quantity value of the uplink user is calculated according to the buffer status report reported by the user.

Namely, the channel measurement value of the uplink user at the time of T3 is obtained, and the average uplink channel quality value is calculated.

For example:

wherein the CQI_i(T) is a channel measurement value K reported by an uplink user i at the time of T3_ULThe number of uplink users.

And obtaining a buffer status report (namely uplink service quantity information) reported by the uplink user at the time of T3, and calculating the average service quantity value of the uplink user.

For example:

wherein, BUF_i(T) is the value of the uplink traffic volume of the uplink user i at the time T3, K_ULThe number of uplink users.

In the same way, the average downlink channel quality value is determined according to the channel feedback value of the downlink user, and the average downlink traffic quantity value of the downlink user is calculated according to the downlink data cache queue of the base station.

Specifically, the channel feedback value of the downlink user at the time T3 is obtained, and the average downlink channel quality value is calculated.

For example:

wherein the CQI_j(T) is the channel quality value, K, fed back by the downlink user j at the time T3_DLThe number of downlink users.

And obtaining a downlink data buffer queue (namely downlink service quantity information) in the base station at the time of T3, and calculating an average service quantity value of the downlink user.

For example:

wherein, BUF_j(T) is the value of the downlink traffic volume of the downlink user j at the time T3, K_DLThe number of downlink users.

And secondly, calculating a weight control factor of the PDCCH and an average weight control factor of the PDCCH by using the determined uplink average channel quality value, the determined downlink average channel quality value, the calculated average traffic volume value of the uplink user and the calculated average traffic volume value of the downlink user.

Specifically, the weight control factor of the PDCCH is calculated by using the determined uplink average channel quality value, the determined downlink average channel quality value, the calculated uplink user average traffic volume value and the calculated downlink user average traffic volume value in the following manner:

$p\left(t\right)=\frac{{\mathrm{BUF}}_{\mathrm{UL}}\left(t\right)}{{\mathrm{BUF}}_{\mathrm{DL}}\left(t\right)}*\frac{{\mathrm{CQI}}_{\mathrm{UL}}\left(t\right)}{{\mathrm{CQI}}_{\mathrm{DL}}\left(t\right)};$

wherein, BUF_UL(t) is the average traffic volume value, BUF, of the uplink user at time t_DL(t) is the average traffic volume value, CQI, of the downlink user at the time t_UL(t) average channel quality value, CQI, of the uplink at time t_DL(t) is the average channel quality value for the downlink at time t.

And calculating the average weight control factor of the PDCCH by the following method:

$\stackrel{\‾}{p}\left(t\right)=(1-\frac{1}{t_c})\stackrel{\‾}{p}(t-k)+\frac{1}{t_c}p\left(t\right);$

wherein,

is the average weight control factor of PDCCH at time t, p (t) is the weight control factor of PDCCH at time t, t_cFor updating the time window, k is an updating period value of the weight allocated to the PDCCH, and t-k is a moment which is k times longer than the t moment.

It should be noted that, in the following description,

is the average weight control factor of PDCCH at time t, then

Is the average weight control factor for the PDCCH at time (t-k). For example: assuming that the time t is 8:00 and the k update period value is 10s, the time t-k means that 8:00 is pushed forward by 10s, i.e. 7:59:50, then

An average weight control factor for PDCCH at time 8:00,

the average weight control factor for PDCCH at time 7:59: 50.

And thirdly, comparing the calculated weight control factor of the PDCCH with the average weight control factor of the PDCCH, and determining the weight value of each uplink user distributed PDCCH and the weight value of each downlink user distributed PDCCH in the current period according to the comparison result.

Specifically, when the weight control factor of the PDCCH is smaller than the average weight control factor of the PDCCH, the weight value allocated to the PDCCH by each uplink user is decreased by a set weight step, and the weight value allocated to the PDCCH by each downlink user is increased by a set weight step.

For example: $\left\{\begin{array}{cc}{w}_{\mathrm{UL}}\left(t\right)=w_{\mathrm{UL}}(t-k)-\mathrm{\Δw}& \\ w_{\mathrm{DL}}\left(t\right)=w_{\mathrm{DL}}(t-k)+\mathrm{\Δw}& \end{array}\right.\stackrel{\‾}{p}(t-k)>p\left(t\right).$

Δ w is a set weight step, w_UL(t-k) distributing the weight value of the PDCCH to the uplink user in the adjacent last updating period; w is a_DL(t-k) distributing weight value of PDCCH for downlink user in the next previous updating period, and when the updating period is 1, initial w_ULAnd w_DLEqual to 1, and can also be determined according to actual needs, which is not limited herein.

And when the weight control factor of the PDCCH is greater than the average weight control factor of the PDCCH, the weight value of the PDCCH allocated by each uplink user is increased by a set weight step length, and the weight value of the PDCCH allocated by each downlink user is decreased by the set weight step length.

For example: $\left\{\begin{array}{cc}{w}_{\mathrm{UL}}\left(t\right)=w_{\mathrm{UL}}(t-k)-\mathrm{\Δw}& \\ w_{\mathrm{DL}}\left(t\right)=w_{\mathrm{DL}}(t-k)+\mathrm{\Δw}& \end{array}\right.\stackrel{\‾}{p}(t-k)>p\left(t\right).$

when the weight control factor of the PDCCH is equal to the average weight control factor of the PDCCH, the weight value of the PDCCH allocated to each uplink user is kept unchanged, and the weight value of the PDCCH allocated to each downlink user is kept unchanged.

For example: $\left\{\begin{array}{c}{w}_{\mathrm{UL}}\left(t\right)=w_{\mathrm{UL}}(t-k)\\ w_{\mathrm{DL}}\left(t\right)=w_{\mathrm{DL}}(t-k)\end{array}\right.\stackrel{\‾}{p}(t-k)=p\left(t\right).$

therefore, the larger the uplink average channel quality is, the more users can be borne by the PUSCH, so that the uplink PDCCH distribution weight is increased, and the number of the users scheduled in the uplink is increased; the larger the uplink average service data volume is, the more data waiting to be transmitted by the uplink user buffer queue is, the longer the waiting time delay is, the more users need to be scheduled preferentially, so that the uplink PDCCH allocation weight is increased, and the number of uplink scheduled users is increased.

Or, the larger the downlink average channel quality is, the more users can be borne by the PDSCH, so that the downlink PDCCH allocation weight is increased, and the number of downlink scheduled users is increased; the larger the downlink average service data volume is, the more data waiting to be sent by a downlink user buffer queue is, the longer the waiting time delay is, the more users need to be scheduled first, so that the downlink PDCCH distribution weight is increased, and the number of downlink scheduled users is increased.

Step 103: obtaining a priority value of the PDCCH resource allocation of each uplink user according to the acquired PUSCH time domain scheduling priority of each uplink user and the determined weight value of the PDCCH allocated to the uplink user, and obtaining a priority value of the PDCCH resource allocation of each downlink user according to the acquired PDSCH time domain scheduling priority of each downlink user and the determined weight value of the PDCCH allocated to the downlink user.

In step 103, the obtained PUSCH time domain scheduling priority of each uplink user and the determined weight value of the uplink user allocated PDCCH are subjected to product operation, and the obtained product value is the priority value of the uplink user allocated PDCCH resource.

For example: p is a radical of_{UL_i}(t)＝p_{PUSCH_i}(t)×w_UL(t)i＝1,2,...,K_ULWherein p is_{PUSCH_i}(t) PUSCH time-domain scheduling priority, w, for uplink user i_ULAnd (t) distributing the weight value of the PDCCH to the uplink user i.

p_{DL_j}(t)＝p_{PDSCH_j}(t)×w_DL(t)j＝1,2,...,K_DLWherein p is_{PDSCH_j}(t) PDSCH time-domain scheduling priority, w, for downlink user j_DLAnd (t) distributing the weight value of the PDCCH for the downlink user j.

Thus, when the uplink channel quality CQI_ULWhen increasing, the PUSCH can bear more uplink users, and at this time, the PUSCH can bear more uplink users

PDCCH weight factor w of uplink allocation_ULIncreasing, while downlink allocating PDCCH weight factor w_DLAnd the PDCCH priority of the uplink user is reduced and improved, so that more uplink users can obtain PDCCH channel resources. When average traffic data volume BUF of upstream user_ULWhen the downlink data rate is reduced, the resource utilization rate of the PDSCH is reduced due to the increase of the PDCCH blocking rate of the downlink user, and the average service data volume BUF of the downlink user_DLWill increase, therefore

Downlink allocation PDCCH weight factor w_DLIncreasing, simultaneously uplink allocating PDCCH weight factor w_ULAnd the PDCCH priority of the downlink user is reduced and improved, so that more downlink users can obtain PDCCH channel resources.

Downlink channel quality CQI_DLWhen the number of downlink users is increased, the PDSCH can bear more downlink users, and the downlink users can be transmitted to the mobile terminal through the PDSCH

Downlink allocation PDCCH weight factor w_DLIncreasing, simultaneously uplink allocating PDCCH weight w_ULAnd the PDCCH priority of the downlink user is reduced and improved, so that more downlink users can obtain PDCCH channel resources. In order to improve the resource utilization rate of PDSCH, the average traffic data volume BUF of the downlink user_DLWhen the uplink user is decreased, the resource utilization rate of the PUSCH is decreased due to the increase of the PDCCH blocking rate of the uplink user, and the resource utilization rate of the PUSCH is decreased along with the increase of the PDCCH blocking rate of the uplink userAverage traffic data volume BUF of uplink user_ULIs increased, thereforeUplink allocation PDCCH weight factor w_ULIncreasing, downlink allocating PDCCH weight factor w_DLAnd the PDCCH priority of the uplink user is reduced and improved, so that more uplink users can obtain PDCCH channel resources.

In summary, the PDCCH allocation weights are adaptively adjusted according to the uplink and downlink channel quality and the change of the uplink and downlink service data volume, so that users with poor channel quality and low resource requirements acquire fewer PDCCH resources, and the PDCCH resource waste is avoided.

Step 104: and performing combined sequencing on the obtained priority value of the PDCCH resources allocated to each uplink user and the priority value of the PDCCH resources allocated to each downlink user according to a set sequencing rule, and sequentially allocating the PDCCH resources to the uplink and downlink users according to a sequencing result.

In step 104, the obtained priority values p of a plurality of allocated PDCCH resources_{UE_m}(t) (wherein m ═ 1, 2.., K)_UL+K_DL) And performing joint sequencing according to the set sequencing.

The sorting rule is usually set to be arranged in order from high to low.

Therefore, the priority of the uplink user and the priority of the downlink user are integrated to be sequenced, the user with relatively high priority preferentially obtains the PDCCH resource, and then the rest PDCCH resource is distributed to the user with low priority, so that the condition that the PDCCH of the user with higher QoS is blocked because the PDCCH resource is distributed to the user with lower QoS firstly is avoided, and the QoS requirement of the user is better ensured.

According to the scheme of the embodiment of the invention, the PDCCH distribution weight is adaptively adjusted according to the quality of the uplink and downlink channels and the change of the data volume of the uplink and downlink services, so that users with poor channel quality and small resource requirements can obtain less PDCCH resources, the waste of PDCCH resources is avoided, and the utilization rate of PDCCH resources is improved.

Example two:

as shown in fig. 2, a schematic structural diagram of a scheduling device for physically controlling downlink channel resources according to a second embodiment of the present invention is shown, where the second embodiment of the present invention is a device that is under the same inventive concept as the first embodiment of the present invention, and the device includes: the system comprises an acquisition module 11, a determination module 12, a priority adjustment module 13 and a resource scheduling module 14, wherein:

an obtaining module 11, configured to obtain a physical uplink shared channel PUSCH time domain scheduling priority of each uplink user and a physical downlink shared channel PDSCH time domain scheduling priority of each downlink user before a physical downlink control channel PDCCH resource is allocated at each transmission time interval TTI;

a determining module 12, configured to calculate, when an update period of PDCCH allocation weights reaches, a weight value of each uplink user allocated PDCCH and a weight value of each downlink user allocated PDCCH in a current update period according to a channel quality value of the uplink and downlink users and an uplink and downlink service data amount;

a priority adjusting module 13, configured to obtain a priority value of the PDCCH resource allocated to each uplink user according to the obtained PUSCH time domain scheduling priority of each uplink user and the determined weight value of the PDCCH allocated to the uplink user, and obtain a priority value of the PDCCH resource allocated to each downlink user according to the obtained PDSCH time domain scheduling priority of each downlink user and the determined weight value of the PDCCH allocated to the downlink user;

and the resource scheduling module 14 is configured to perform joint sequencing on the obtained priority value of the PDCCH resource allocated to each uplink user and the priority value of the PDCCH resource allocated to each downlink user according to a set sequencing rule, and sequentially allocate the PDCCH resources to the uplink and downlink users according to a sequencing result.

Specifically, the obtaining module 11 is specifically configured to obtain a PUSCH time-domain scheduling priority of each uplink user from the uplink time-domain scheduler, and normalize the PUSCH time-domain scheduling priority of each uplink user to obtain a normalized PUSCH time-domain scheduling priority of the uplink user;

and acquiring the PDSCH time domain scheduling priority of each downlink user from the downlink time domain scheduler, and normalizing the PDSCH time domain scheduling priority of each downlink user to obtain the normalized PDSCH time domain scheduling priority of the downlink user.

The obtaining module 11 is specifically configured to normalize the PUSCH time-domain scheduling priority of each uplink user in the following manner, to obtain a normalized PUSCH time-domain scheduling priority of the uplink user:

$p_{\mathrm{PUSCH}\_i}=\frac{p_{\mathrm{PUSCH}\_i}\left(t\right)}{P_{\max }\left(t\right)},i=\mathrm{1,2},...,K_{\mathrm{UL}};$

wherein p is_{PUSCH_i}(t) PUSCH time-domain scheduling priority, P, of uplink user i at time t_max(t) is the maximum value of the PUSCH time domain scheduling priorities of all uplink users, p_{PUSCH_i}To obtainNormalized PUSCH time domain scheduling priority, K, of uplink user i_ULThe number of the uplink users;

and normalizing the PDSCH time domain scheduling priority of each downlink user in the following mode to obtain the normalized PDSCH time domain scheduling priority of the downlink user:

$p_{\mathrm{PDSCH}\_j}=\frac{p_{\mathrm{PDSCH}\_j}\left(t\right)}{P_{\max }\left(t\right)},j=\mathrm{1,2},...,K_{\mathrm{DL}};$

wherein p is_{PDSCH_j}(t) PDSCH time-domain scheduling priority, P, of downlink user j at time t_max(t) is the maximum value of PDSCH time domain scheduling priority of all downlink users, p_{PDSCH_j}To obtain the normalized PDSCH time-domain scheduling priority, K, of the downlink user j_DLThe number of downlink users.

The determining module 12 is specifically configured to determine an average uplink channel quality value according to a channel measurement value of an uplink user, and calculate an average uplink traffic quantity value according to a buffer status report reported by the user; determining the average downlink channel quality value according to the channel feedback value of the downlink user, and calculating the average downlink user traffic value according to the downlink data cache queue of the base station; calculating a weight control factor of the PDCCH and an average weight control factor of the PDCCH by using the determined average uplink channel quality value, the determined average downlink channel quality value, the calculated average traffic volume value of the uplink user and the calculated average traffic volume value of the downlink user; and comparing the calculated weight control factor of the PDCCH with the average weight control factor of the PDCCH, and determining the weight value of the PDCCH allocated to each uplink user and the weight value of the PDCCH allocated to each downlink user in the current period according to the comparison result.

The determining module 12 is specifically configured to calculate a weight control factor of the PDCCH in the following manner:

$p\left(t\right)=\frac{{\mathrm{BUF}}_{\mathrm{UL}}\left(t\right)}{{\mathrm{BUF}}_{\mathrm{DL}}\left(t\right)}*\frac{{\mathrm{CQI}}_{\mathrm{UL}}\left(t\right)}{{\mathrm{CQI}}_{\mathrm{DL}}\left(t\right)};$

wherein, BUF_UL(t) is the average traffic volume value, BUF, of the uplink user at time t_DL(t) isAverage traffic volume value, CQI, of downlink user at time t_UL(t) average channel quality value, CQI, of the uplink at time t_DL(t) is the average channel quality value for the downlink at time t.

The determining module 12 is specifically configured to calculate an average weight control factor of the PDCCH by the following method:

$\stackrel{\‾}{p}\left(t\right)=(1-\frac{1}{t_c})\stackrel{\‾}{p}(t-k)+\frac{1}{t_c}p\left(t\right);$

wherein,

is the average weight control factor of PDCCH at time t, p (t) is the weight control factor of PDCCH at time t, t_cFor updating the time window, k is an updating period value of the weight allocated to the PDCCH, and t-k is a moment which is k times longer than the t moment.

The resource scheduling module 14 is specifically configured to, when the weight control factor of the PDCCH is smaller than the average weight control factor of the PDCCH, decrease the weight value of the PDCCH allocated to each uplink user by a set weight step size, and increase the weight value of the PDCCH allocated to each downlink user by the set weight step size;

when the weight control factor of the PDCCH is larger than the average weight control factor of the PDCCH, the weight value of the PDCCH allocated by each uplink user is increased by a set weight step length, and the weight value of the PDCCH allocated by each downlink user is decreased by the set weight step length;

when the weight control factor of the PDCCH is equal to the average weight control factor of the PDCCH, the weight value of the PDCCH allocated to each uplink user is kept unchanged, and the weight value of the PDCCH allocated to each downlink user is kept unchanged.

The resource scheduling module 14 is specifically configured to perform product operation on the acquired PUSCH time domain scheduling priority of each uplink user and the determined weight value of the PDCCH allocated to the uplink user, and the obtained product value is a priority value of the PDCCH resource allocated to the uplink user;

and performing product operation on the acquired PDSCH time domain scheduling priority of each downlink user and the determined weight value of the PDCCH allocated to the downlink user to obtain a product value which is the priority value of the PDCCH resource allocated to the downlink user.

The scheduling device in the second embodiment of the present invention may be a logic unit implemented by software, or may be a physical entity implemented by hardware, for example: the PDCCH resource management device is not limited herein.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus (device), or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (devices) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (16)

1. A method for scheduling physical downlink control channel resources is characterized by comprising the following steps:

before Physical Downlink Control Channel (PDCCH) resources are distributed in each Transmission Time Interval (TTI), the time domain scheduling priority of a Physical Uplink Shared Channel (PUSCH) of each uplink user and the time domain scheduling priority of a Physical Downlink Shared Channel (PDSCH) of each downlink user are obtained;

when the updating period of the PDCCH distribution weight is reached, calculating the weight value of each uplink user distributed PDCCH and the weight value of each downlink user distributed PDCCH in the current updating period according to the channel quality value of the uplink user and the downlink user and the uplink service data volume;

obtaining a priority value of the PDCCH resource allocation of each uplink user according to the acquired PUSCH time domain scheduling priority of each uplink user and the determined weight value of the PDCCH allocated to the uplink user, and obtaining a priority value of the PDCCH resource allocation of each downlink user according to the acquired PDSCH time domain scheduling priority of each downlink user and the determined weight value of the PDCCH allocated to the downlink user;

according to a set sequencing rule, performing combined sequencing on the obtained priority value of the PDCCH resource allocation of each uplink user and the priority value of the PDCCH resource allocation of each downlink user;

and according to the sequencing result, sequentially allocating PDCCH resources for uplink and downlink users.

2. The method of claim 1, wherein obtaining the Physical Uplink Shared Channel (PUSCH) time domain scheduling priority of each uplink user and the Physical Downlink Shared Channel (PDSCH) time domain scheduling priority of each downlink user specifically comprises:

reading the PUSCH time domain scheduling priority of each uplink user from the uplink time domain scheduler, and normalizing the PUSCH time domain scheduling priority of each uplink user to obtain the normalized PUSCH time domain scheduling priority of the uplink user;

and reading the PDSCH time domain scheduling priority of each downlink user from the downlink time domain scheduler, and normalizing the PDSCH time domain scheduling priority of each downlink user to obtain the normalized PDSCH time domain scheduling priority of the downlink user.

3. The method of claim 2, wherein normalizing the PUSCH time-domain scheduling priority of each uplink user to obtain a normalized PUSCH time-domain scheduling priority of the uplink user comprises:

normalizing the PUSCH time domain scheduling priority of each uplink user in the following mode to obtain the normalized PUSCH time domain scheduling priority of the uplink user:

$p_{\mathrm{PUSCH}\_i}=\frac{p_{\mathrm{PUSCH}\_i}\left(t\right)}{P_{\max }\left(t\right)},i=\mathrm{1,2},...,K_{\mathrm{UL}};$

wherein p is_{PUSCH_i}(t) PUSCH time-domain scheduling priority, P, of uplink user i at time t_max(t) is the maximum value of the PUSCH time domain scheduling priorities of all uplink users, p_{PUSCH_i}To obtain the normalized PUSCH time-domain scheduling priority, K, of the uplink user i_ULThe number of the uplink users;

normalizing the PDSCH time domain scheduling priority of each downlink user to obtain the normalized PDSCH time domain scheduling priority of the downlink user, and the method comprises the following steps:

normalizing the PDSCH time domain scheduling priority of each downlink user in the following mode to obtain the normalized PDSCH time domain scheduling priority of the downlink user:

$p_{\mathrm{PDSCH}\_j}=\frac{p_{\mathrm{PDSCH}\_j}\left(t\right)}{P_{\max }\left(t\right)},j=\mathrm{1,2},...,K_{\mathrm{DL}};$

wherein p is_{PDSCH_j}(t) PDSCH time-domain scheduling priority, P, of downlink user j at time t_max(t) is the maximum value of PDSCH time domain scheduling priority of all downlink users, p_{PDSCH_j}To obtain the normalized PDSCH time-domain scheduling priority, K, of the downlink user j_DLThe number of downlink users.

4. The method of claim 1, wherein calculating a weight value of each uplink user allocated PDCCH and a weight value of each downlink user allocated PDCCH in a current period according to the channel quality values of the uplink and downlink users and the uplink and downlink service data amounts comprises:

determining the average uplink channel quality value according to the channel measurement value of the uplink user, and calculating the average uplink user traffic value according to the buffer status report reported by the user;

determining the average downlink channel quality value according to the channel feedback value of the downlink user, and calculating the average downlink user traffic value according to the downlink data cache queue of the base station;

calculating a weight control factor of the PDCCH and an average weight control factor of the PDCCH by using the determined average uplink channel quality value, the determined average downlink channel quality value, the calculated average traffic volume value of the uplink user and the calculated average traffic volume value of the downlink user;

and comparing the calculated weight control factor of the PDCCH with the average weight control factor of the PDCCH, and determining the weight value of the PDCCH allocated to each uplink user and the weight value of the PDCCH allocated to each downlink user in the current period according to the comparison result.

5. The method of claim 4, wherein calculating the weight control factor for the PDCCH using the determined average channel quality value for the uplink, the average channel quality value for the downlink, the calculated average traffic volume value for the uplink user, and the average traffic volume value for the downlink user comprises:

calculating a weight control factor of the PDCCH by the following method:

$p\left(t\right)=\frac{{\mathrm{BUF}}_{\mathrm{UL}}\left(t\right)}{{\mathrm{BUF}}_{\mathrm{DL}}\left(t\right)}*\frac{{\mathrm{CQI}}_{\mathrm{UL}}\left(t\right)}{{\mathrm{CQI}}_{\mathrm{DL}}\left(t\right)};$

wherein,BUF_UL(t) is the average traffic volume value, BUF, of the uplink user at time t_DL(t) is the average traffic volume value, CQI, of the downlink user at the time t_UL(t) average channel quality value, CQI, of the uplink at time t_DL(t) is the average channel quality value for the downlink at time t.

6. The method of claim 5, wherein calculating an average weight control factor for PDCCH comprises:

calculating the average weight control factor of the PDCCH by the following method:

$\stackrel{\‾}{p}\left(t\right)=(1-\frac{1}{t_c})\stackrel{\‾}{p}(t-k)+\frac{1}{t_c}p\left(t\right);$

wherein,

is the average weight control factor of PDCCH at time t, p (t) is the weight control factor of PDCCH at time t, t_cFor updating the time window, k is an updating period value of the weight allocated to the PDCCH, and t-k is a moment which is k times longer than the t moment.

7. The method according to any one of claims 4 to 6, wherein determining the weight value of each uplink user allocated PDCCH and the weight value of each downlink user allocated PDCCH in the current period according to the comparison result includes:

when the weight control factor of the PDCCH is smaller than the average weight control factor of the PDCCH, each uplink user distributes the weight value of the PDCCH to reduce the set weight step length, and each downlink user distributes the weight value of the PDCCH to increase the set weight step length;

when the weight control factor of the PDCCH is larger than the average weight control factor of the PDCCH, the weight value of the PDCCH allocated by each uplink user is increased by a set weight step length, and the weight value of the PDCCH allocated by each downlink user is decreased by the set weight step length;

when the weight control factor of the PDCCH is equal to the average weight control factor of the PDCCH, the weight value of the PDCCH allocated to each uplink user is kept unchanged, and the weight value of the PDCCH allocated to each downlink user is kept unchanged.

8. The method of claim 7, wherein obtaining the priority value of the allocated PDCCH resource of each uplink user according to the obtained PUSCH time domain scheduling priority of each uplink user and the determined weight value of the allocated PDCCH of the uplink user comprises:

performing product operation on the acquired PUSCH time domain scheduling priority of each uplink user and the determined weight value of the PDCCH allocated to the uplink user, wherein the obtained product value is the priority value of the PDCCH resource allocated to the uplink user;

obtaining a priority value of the PDCCH resource allocation of each downlink user according to the acquired PDSCH time domain scheduling priority of each downlink user and the determined weight value of the PDCCH allocated to the downlink user, wherein the priority value comprises the following steps:

and performing product operation on the acquired PDSCH time domain scheduling priority of each downlink user and the determined weight value of the PDCCH allocated to the downlink user to obtain a product value which is the priority value of the PDCCH resource allocated to the downlink user.

9. A scheduling device of physical downlink control channel resources, comprising:

an obtaining module, configured to obtain a Physical Uplink Shared Channel (PUSCH) time-domain scheduling priority of each uplink user and a Physical Downlink Shared Channel (PDSCH) time-domain scheduling priority of each downlink user before a Physical Downlink Control Channel (PDCCH) resource is allocated to each Transmission Time Interval (TTI);

the determining module is used for calculating the weight value of each uplink user distributed PDCCH and the weight value of each downlink user distributed PDCCH in the current updating period according to the channel quality value of the uplink and downlink users and the uplink and downlink service data volume when the updating period of the PDCCH distributed weights is reached;

the priority adjusting module is used for obtaining a priority value of the distributed PDCCH resources of each uplink user according to the acquired PUSCH time domain scheduling priority of each uplink user and the determined weight value of the distributed PDCCH of the uplink user, and obtaining a priority value of the distributed PDCCH resources of each downlink user according to the acquired PDSCH time domain scheduling priority of each downlink user and the determined weight value of the distributed PDCCH of the downlink user;

and the resource scheduling module is used for performing combined sequencing on the obtained priority value of the PDCCH resources allocated to each uplink user and the priority value of the PDCCH resources allocated to each downlink user according to a set sequencing rule, and sequentially allocating the PDCCH resources to the uplink and downlink users according to a sequencing result.

10. The apparatus of claim 9,

the acquisition module is specifically configured to acquire the PUSCH time-domain scheduling priority of each uplink user from the uplink time-domain scheduler, and normalize the PUSCH time-domain scheduling priority of each uplink user to obtain a normalized PUSCH time-domain scheduling priority of the uplink user;

and acquiring the PDSCH time domain scheduling priority of each downlink user from the downlink time domain scheduler, and normalizing the PDSCH time domain scheduling priority of each downlink user to obtain the normalized PDSCH time domain scheduling priority of the downlink user.

11. The apparatus of claim 10,

the obtaining module is specifically configured to normalize the PUSCH time-domain scheduling priority of each uplink user in the following manner, and obtain a normalized PUSCH time-domain scheduling priority of the uplink user:

$p_{\mathrm{PUSCH}\_i}=\frac{p_{\mathrm{PUSCH}\_i}\left(t\right)}{P_{\max }\left(t\right)},i=\mathrm{1,2},...,K_{\mathrm{UL}};$

wherein p is_{PUSCH_i}(t) PUSCH time-domain scheduling priority, P, of uplink user i at time t_max(t) is the maximum value of the PUSCH time domain scheduling priorities of all uplink users, p_{PUSCH_i}To obtain the normalized PUSCH time-domain scheduling priority, K, of the uplink user i_ULThe number of the uplink users;

and normalizing the PDSCH time domain scheduling priority of each downlink user in the following mode to obtain the normalized PDSCH time domain scheduling priority of the downlink user:

$p_{\mathrm{PDSCH}\_j}=\frac{p_{\mathrm{PDSCH}\_j}\left(t\right)}{P_{\max }\left(t\right)},j=\mathrm{1,2},...,K_{\mathrm{DL}};$

wherein p is_{PDSCH_j}(t) PDSCH time-domain scheduling priority, P, of downlink user j at time t_max(t) is the maximum value of PDSCH time domain scheduling priority of all downlink users, p_{PDSCH_j}To obtain the normalized PDSCH time-domain scheduling priority, K, of the downlink user j_DLThe number of downlink users.

12. The apparatus of claim 9,

the determining module is specifically configured to determine an average uplink channel quality value according to a channel measurement value of an uplink user, and calculate an average uplink traffic quantity value according to a buffer status report reported by the user; determining the average downlink channel quality value according to the channel feedback value of the downlink user, and calculating the average downlink user traffic value according to the downlink data cache queue of the base station; calculating a weight control factor of the PDCCH and an average weight control factor of the PDCCH by using the determined average uplink channel quality value, the determined average downlink channel quality value, the calculated average traffic volume value of the uplink user and the calculated average traffic volume value of the downlink user; and comparing the calculated weight control factor of the PDCCH with the average weight control factor of the PDCCH, and determining the weight value of the PDCCH allocated to each uplink user and the weight value of the PDCCH allocated to each downlink user in the current period according to the comparison result.

13. The apparatus of claim 12,

the determining module is specifically configured to calculate a weight control factor of the PDCCH in the following manner:

$p\left(t\right)=\frac{{\mathrm{BUF}}_{\mathrm{UL}}\left(t\right)}{{\mathrm{BUF}}_{\mathrm{DL}}\left(t\right)}*\frac{{\mathrm{CQI}}_{\mathrm{UL}}\left(t\right)}{{\mathrm{CQI}}_{\mathrm{DL}}\left(t\right)};$

wherein, BUF_UL(t) is the average traffic volume value, BUF, of the uplink user at time t_DL(t) is the average traffic volume value, CQI, of the downlink user at the time t_UL(t) average channel quality value, CQI, of the uplink at time t_DL(t) is the average channel quality value for the downlink at time t.

14. The apparatus of claim 13,

the determining module is specifically configured to calculate an average weight control factor of the PDCCH in the following manner:

$\stackrel{\‾}{p}\left(t\right)=(1-\frac{1}{t_c})\stackrel{\‾}{p}(t-k)+\frac{1}{t_c}p\left(t\right);$

wherein,

is the average weight control factor of PDCCH at time t, p (t) is the weight control factor of PDCCH at time t, t_cFor updating the time window, k is an updating period value of the weight allocated to the PDCCH, and t-k is a moment which is k times longer than the t moment.

15. The apparatus according to any one of claims 12 to 14,

the resource scheduling module is specifically configured to, when the weight control factor of the PDCCH is smaller than the average weight control factor of the PDCCH, decrease the weight value of the PDCCH allocated to each uplink user by a set weight step size, and increase the weight value of the PDCCH allocated to each downlink user by the set weight step size;

when the weight control factor of the PDCCH is larger than the average weight control factor of the PDCCH, the weight value of the PDCCH allocated by each uplink user is increased by a set weight step length, and the weight value of the PDCCH allocated by each downlink user is decreased by the set weight step length;

when the weight control factor of the PDCCH is equal to the average weight control factor of the PDCCH, the weight value of the PDCCH allocated to each uplink user is kept unchanged, and the weight value of the PDCCH allocated to each downlink user is kept unchanged.

16. The apparatus of claim 15,

the resource scheduling module is specifically configured to perform product operation on the acquired PUSCH time domain scheduling priority of each uplink user and the determined weight value of the PDCCH allocated to the uplink user, and the obtained product value is a priority value of the PDCCH resource allocated to the uplink user;

and performing product operation on the acquired PDSCH time domain scheduling priority of each downlink user and the determined weight value of the PDCCH allocated to the downlink user to obtain a product value which is the priority value of the PDCCH resource allocated to the downlink user.

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