CN102630100B - Time division scheduling method and device - Google Patents

Abstract

The invention discloses a time division scheduling method and a time division scheduling device and belongs to the field of communication. The method comprises: determining whether user equipment (UE) conforms to time division scheduling conditions according to parameters of each piece of UE, and obtaining a UE candidate set conforming to the time division scheduling conditions; selecting one or a plurality of groups of UE for time division scheduling in the period from the candidate set, allocating process for the UE for the time division scheduling in the period, and determining the corresponding relations between the UE for the time division scheduling in the period and the allocated process; and activating the process of allocation for the time division scheduling in the period according to the corresponding relations between the determined UE in the period and the allocated process. One or the plurality of groups of UE for the time division scheduling in the period is selected from the UE candidate set conforming to the time division scheduling conditions, the time division scheduling is performed under consideration of a whole neighborhood, and disturbance in the neighborhood is effectively reduced. Due to the fact that the UE for the time division scheduling can be of the plurality of groups, the number of the UE for the time division scheduling can be increased, and the UE for the time division scheduling can obtain interference offset and characteristic gain.

Description

Time division scheduling method and device

technical field

The present invention relates to the communication field, in particular to a time-division scheduling method and device.

Background technique

As various services have higher and higher requirements for delay, HSUPA (High Speed Uplink Packet Access) adopts multi-code transmission, HARQ (Hybrid Automatic Repeat Request, hybrid automatic repeat request) , TTI (Transmission Time Interval, transmission time interval) is 2ms wireless short frame and other technologies, making the maximum uplink data throughput rate of a single cell reach 5.76Mbit/s, further enhancing WCDMA (Wideband Code Division Multiple Access, wideband code division multiple access) Uplink data service bearing capacity and spectrum utilization. However, in the HSUPA system, although more 2ms TTI uplink users and higher uplink rate of users can increase the number of users and throughput in the cell, it will also lead to increased interference in the cell.

In this regard, the prior art adopts uplink time-division scheduling to reduce the interference in the cell. During specific implementation, the Node B (base station) measures the authorization value, uplink transmission rate, and uplink transmission rate of each UE (User Equipment, user equipment). Power three parameters, and judge each UE separately. If the above three parameters or the combination of the three parameters exceed a certain threshold for a certain period of time, the UE will enter time division scheduling. If the above three parameters or three parameters of a certain UE If the combination is lower than a certain threshold for a certain period of time, time division scheduling will not be performed and code division will be resumed.

In the process of realizing the present invention, the inventor finds that there are at least the following problems in the prior art:

In the time-division scheduling method provided by the prior art, the scheduling policy is only to judge each UE separately, and there is only one group of UEs for time-division scheduling, and the number of UEs for time-division scheduling cannot exceed 8, resulting in The scheduling method is too ideal, and the effect of reducing interference is not good.

Contents of the invention

In order to effectively reduce the interference in the cell while increasing the uplink throughput of the cell, the embodiments of the present invention provide a time-division scheduling method and device. The technical solution is as follows:

On the one hand, a time-division scheduling method is provided, and the method includes:

Determine whether the UE meets the time-division scheduling condition according to the parameters of each user equipment UE, and obtain a UE candidate set that meets the time-division scheduling condition;

Select one or more groups of UEs that perform time-division scheduling in this period from the candidate set, and assign processes to the UEs that perform time-division scheduling in this period, and determine the correspondence between UEs that perform time-division scheduling in this period and the allocated processes;

According to the corresponding relationship between the UE and the allocated process determined in this period, the process allocated to the UE for time-division scheduling in this period is activated.

In another aspect, a time-division scheduling device is provided, and the device includes:

The first determining module is used to determine whether the UE meets the time-division scheduling condition according to the parameters of each user equipment UE, and obtain a UE candidate set that meets the time-division scheduling condition;

A selection module, configured to select one or more groups of UEs for time division scheduling in this period from the candidate set obtained by the first determination module;

An allocation module, configured to perform a time-division scheduling UE allocation process for the current period selected by the selection module;

The second determination module is used to determine the corresponding relationship between the UE selected by the selection module for time division scheduling in this cycle and the process allocated by the allocation module;

The activating module is configured to activate the process allocated by the allocation module for the UE that performs time-division scheduling in this period according to the correspondence between the UE determined by the second determination module in this period and the allocated process.

The beneficial effects brought by the technical solution provided by the embodiments of the present invention are:

By determining whether the UE meets the time-division scheduling conditions, one or more groups of UEs for time-division scheduling in this cycle are selected from the obtained UE candidate set that meets the time-division scheduling conditions, so as to realize time-division scheduling from the overall consideration of the cell and ensure user fairness and differentiation. Furthermore, the interference in the cell can be effectively reduced; and since there can be multiple groups of UEs performing time-division scheduling, the number of UEs performing time-division scheduling can be increased, so that the time-division scheduled UEs can enjoy the characteristic gain of interference cancellation.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

FIG. 1 is a flowchart of a time-division scheduling method provided by Embodiment 1 of the present invention;

FIG. 2 is a flow chart of a time-division scheduling method provided in Embodiment 2 of the present invention;

FIG. 3 is a schematic diagram of a time-division scheduling pattern provided by Embodiment 2 of the present invention;

FIG. 4 is a schematic diagram of another time-division scheduling pattern provided by Embodiment 2 of the present invention;

FIG. 5 is a schematic structural diagram of a time-division scheduling device provided in Embodiment 3 of the present invention;

FIG. 6 is a schematic structural diagram of another time-division scheduling device provided by Embodiment 3 of the present invention;

FIG. 7 is a schematic structural diagram of another time-division scheduling device provided by Embodiment 3 of the present invention;

FIG. 8 is a schematic structural diagram of an activation module provided by Embodiment 3 of the present invention;

FIG. 9 is a schematic structural diagram of another activation module provided by Embodiment 3 of the present invention;

Fig. 10 is a schematic structural diagram of another activation module provided by Embodiment 3 of the present invention;

Fig. 11 is a schematic structural diagram of an activation unit provided in Embodiment 3 of the present invention;

Fig. 12 is a schematic structural diagram of another activation unit provided by Embodiment 3 of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Embodiment one

In a CDMA (Code Division Multiple Access) system, uplink UEs are not completely orthogonal, and uplink UEs in a cell interfere with each other. In order to ensure communication quality, the uplink capacity of a cell is limited by interference between UEs. To this end, HSUPA uses key technologies such as multi-code transmission, HARQ, and Node B-based fast scheduling, so that the maximum uplink data throughput rate of a single cell reaches 5.76Mbit/s.

However, in the HSUPA system, more 2ms TTI uplink UEs and higher uplink rates of UEs lead to increased interference in the cell, and increase the number of UEs and throughput in the cell. Therefore, this embodiment provides a time-division scheduling method, by which UEs are called to different times, thereby reducing interference between UEs and expanding cell uplink capacity. Referring to Figure 1, the method flow provided by this embodiment is specifically as follows:

101: Determine whether the UE meets the time division scheduling condition according to the parameters of each UE, and obtain a UE candidate set that meets the time division scheduling condition;

Among them, according to the parameters of each UE, it is determined whether the UE meets the time division scheduling conditions, including but not limited to:

According to at least one parameter of each UE's moving speed, transmission time interval, data transmission amount within a preset time period, and chip offset, determine whether the UE meets the time-division scheduling condition. It can be understood that it can also be based on Any combination of these parameters determines whether the UE meets the time division scheduling conditions.

In order to ensure the performance of time-division scheduling, in another embodiment of the present invention, after obtaining the UE candidate set meeting the time-division scheduling condition, it may also include selecting one or more groups of UEs from the UE candidate set according to the parameters of the cell where the UE is located. Periodically do time division scheduling.

The parameters of the cell can include the number of receiving antennas in the cell. Specifically, it can be judged whether the number of UEs in the candidate set and the number of receiving antennas in the cell reach the threshold. If so, continue to select one or more groups from the candidate set for time-division scheduling in this cycle. steps of the UE.

102: Select one or more groups of UEs that perform time-division scheduling in this period from the candidate set, and allocate processes for the UEs that perform time-division scheduling in this period, and determine the corresponding relationship between UEs that perform time-division scheduling in this period and the allocated processes;

Among them, one or more groups of UEs to be time-division-scheduled in this period are selected from the candidate set, including but not limited to:

According to the priority of each UE in the candidate set, one or more groups of UEs for time division scheduling in this period are selected. During specific implementation, users with the same priority may be selected in a time slice polling manner.

Specifically, the UE allocation process for time-division scheduling in this period includes but is not limited to:

According to the priority of UEs performing time-division scheduling in this period, processes are allocated to UEs performing time-division scheduling in this period, and the number of allocated processes is proportional to the priority;

Alternatively, processes are allocated to the UEs performing time division scheduling in this period according to the corresponding relationship between the UEs performing time division scheduling in this period and the previous period.

In another embodiment of the present invention, before selecting one or more groups of UEs for time division scheduling in this period from the candidate set, it may also include:

According to the configuration parameters of the cell, set the fixed number of groups of UEs performing time-division scheduling in this period, or dynamically adjust the number of groups of UEs performing time-division scheduling in this period according to the configuration parameters and measurement values of the cell;

Among them, the configuration parameters of the cell include at least the number of receiving antennas and the number of AG (Absolute Grant Channel, absolute authorized channel) code channels;

The measured value includes at least the number of UEs in the candidate set within a preset time period and the effect of time-division scheduling. The effect of time-division scheduling includes at least the received power, the average traffic of UEs performing time-division scheduling in this period, and the authorization value.

103: Activate the process allocated to the UE for time division scheduling in this period according to the determined correspondence between the UE and the allocated process in this period.

Specifically, according to the corresponding relationship between the UE and the allocated process determined in this period, the process allocated to the UE for time division scheduling in this period is activated, including but not limited to:

According to the corresponding relationship between the UE and the allocated process determined in this period, send the AG value of deactivating all processes to the UE performing time division scheduling in this period, so that the UE performing time division scheduling in this period deactivates all processes, and then send the AG value to this period The UE that performs time-division scheduling periodically sends the AG value for activating a single process, so that the UE that performs time-division scheduling in this period activates the assigned process;

Or, according to the corresponding relationship between the UE and the assigned process determined in this period, send the AG value of activating all processes to the UE performing time division scheduling in this period, so that the UE performing time division scheduling in this period activates all processes, and then send the AG value to this period The UE that performs time-division scheduling periodically sends the AG value to deactivate a single process, so that the UE that performs time-division scheduling in this period deactivates the unassigned process;

Or, according to the corresponding relationship between the UE and the assigned process determined in this period and the corresponding relationship determined in the previous period, it is determined that the new UE for time division scheduling in this period is determined, and the new UE in this period is activated according to the corresponding relationship determined in this period. The process of UE allocation for time-division scheduling is added.

In another embodiment of the present invention, according to the corresponding relationship determined in this period, the process of allocating UEs newly added for time-division scheduling in this period is activated, specifically including:

According to the corresponding relationship between the UE and the assigned process determined in this cycle, send the AG value of deactivating all processes to the UE newly added in this cycle for time division scheduling, so that the UE newly added for time division scheduling in this cycle deactivates all processes, Then send the AG value for activating a single process to the UE newly added for time division scheduling in this cycle, so that the UE newly added for time division scheduling in this cycle activates the assigned process;

Or, according to the corresponding relationship between the UE and the assigned process determined in this cycle, send the AG value of activating all processes to the UE newly added in time division scheduling in this cycle, so that the UE newly added in time division scheduling in this cycle activates all processes, Afterwards, the AG value for deactivating a single process is sent to the UE newly added for time division scheduling in this cycle, so that the UE newly added for time division scheduling in this cycle deactivates the unassigned process.

After time-division scheduling is performed by the above method, for UEs with poor time-division scheduling effect, in another embodiment of the present invention, it also includes:

Switch UEs performing time division scheduling in this period to code division scheduling according to the time division scheduling effect value. The time division scheduling effect value includes at least the received power, the average traffic of UEs performing time division scheduling in this cycle within the preset time period, and the authorization value. A sort of.

By switching UEs performing time-division scheduling in this period to code-division scheduling according to the time-division scheduling effect value, time-division scheduling resources can be saved, the probability of scheduling other UEs can be increased, and the performance of time-division scheduling can be guaranteed.

In the method provided in this embodiment, by determining whether the UE meets the time-division scheduling conditions, one or more groups of UEs for time-division scheduling in this period are selected from the obtained UE candidate set that meets the time-division scheduling conditions, so as to implement time-division scheduling from the perspective of the cell as a whole. Ensure user fairness and differentiation, thereby effectively reducing the interference in the cell; and because the UEs performing time division scheduling can be in multiple groups, the number of UEs performing time division scheduling can be increased, so that UEs scheduled by time division can enjoy the interference cancellation feature gain.

In order to more clearly illustrate the time-division scheduling method provided by the above-mentioned embodiment, in combination with the above content, the following embodiment 2 is taken as an example to describe the time-division scheduling method in detail, see the following embodiment 2 for details:

Embodiment two

This embodiment provides a time-division scheduling method. Combining the content of the first embodiment above, this embodiment takes the method of time-division scheduling for UEs in the HSUPA system as an example to describe in detail, see FIG. 2, the method provided by this embodiment The process is as follows:

201: Determine whether the UE meets the time division scheduling condition according to the parameters of each UE, and obtain a UE candidate set that meets the time division scheduling condition;

Specifically, this embodiment does not limit the method of determining whether the UE meets the time-division scheduling conditions, which may be based on at least one parameter among the UE's moving speed, TTI, data transmission amount within a preset time period, and chip offset Determine whether the UE meets the time-division scheduling condition. For example, if the mobile speed of the UE is less than the preset threshold, the TTI is 2 milliseconds, there is sufficient data transmission volume within the preset time period, and the chip offset with other UEs is the same or an integer multiple of 2 milliseconds, then determine The UE meets the time-division scheduling conditions.

This embodiment does not specifically limit the preset threshold, the specific size of the preset time period, and the criteria for judging whether the UE's data transmission volume is sufficient. In addition, an integer multiple of 2 milliseconds is an integer multiple of 7560 chips.

202: Determine whether the number of UEs in the candidate set and the number of receiving antennas in the cell reach a threshold, if so, perform step 203, otherwise, the process ends;

Among them, this step is a preferred step. The reason for judging whether the number of UEs in the candidate set and the number of receiving antennas in the cell reach the threshold is to ensure the effect of time-division scheduling, because if the number of UEs in the candidate set and the number of receiving antennas in the cell do not reach the threshold If the threshold is set, the effect achieved by time division scheduling cannot be achieved, or the effect of time division scheduling is not good enough. This embodiment does not limit the size of the threshold. In practical applications, the threshold can be obtained according to the configuration parameters of the cell, and this embodiment also does not specifically limit the configuration parameters of the cell.

In addition, in this embodiment, when judging whether the number of UEs in the candidate set and the number of receiving antennas in the cell reach the threshold, it may specifically judge whether the number of UEs in the candidate set reaches the threshold and whether the number of receiving antennas in the cell reaches the threshold. If both the number of UEs and the number of receiving antennas of the cell reach the threshold, the subsequent step 203 is executed. For example, if the number of receiving antennas in the cell is 1, and the number of UEs in the candidate set reaches 2, time-division scheduling is required, and step 203 is performed; for another example, if the number of receiving antennas in the cell is 2, and the number of UEs in the candidate set reaches 4, then It is judged that both the number of UEs in the candidate set and the number of receiving antennas in the cell reach the threshold. The general principle is that if the number of UEs in the candidate set is equally divided among the receiving antennas of the cell, the number of UEs in each receiving antenna is too small to achieve the effect of time-division scheduling, and time-division scheduling is not required. However, if the number of UEs in the candidate set is equally divided among the receiving antennas of the cell, and the number of UEs equally divided to each receiving antenna reaches a certain number, then time-division scheduling can achieve a better time-division scheduling effect. Carry out time division scheduling. Of course, in addition to the number of receiving antennas in the cell, it is also possible to determine whether the cell performs ICIC (Inter-Cell Interference Coordination, inter-cell interference coordination). If ICIC is implemented, the number of UEs equally divided to each receiving antenna is more than that without ICIC Only then will there be a better time-division scheduling effect.

203: Select one or more groups of UEs for time division scheduling in this period from the candidate set;

For this step, before selecting one or more groups of UEs for time-division scheduling in this period from the candidate set, this embodiment does not specifically limit the number of selected groups. In practical applications, the fixed number of groups of UEs performing time-division scheduling in this period can be set according to the configuration parameters of the cell, or the number of groups of UEs performing time-division scheduling in this period can be dynamically adjusted according to the configuration parameters and measurement values of the cell; The embodiment does not limit the specific configuration parameters and measurement values of the cell. The configuration parameters of the cell include at least the number of receiving antennas and the number of AG code channels; the measurement values include at least the number of UEs in the candidate set within a preset time period and the time division scheduling effect value. The time-division scheduling effect value includes at least one of the received power, the average traffic of UEs performing time-division scheduling in this period within a preset time period, and the grant value. Wherein, the authorized value is the ratio of the power of the data channel and the control channel, which is equivalent to the sending power of the UE, the length of the transmission block, and the rate.

Regardless of the number of groups selected from the candidate set, each group of UEs can still occupy 8 HARQ processes. As shown in Figure 3, a group of UEs that perform time-division scheduling in this cycle and two groups of UEs that perform time-division scheduling in this cycle as shown in Figure 4 For the scheduled UEs, the time-division UEs of different groups are still in the code-division relationship, and the time-division UEs of different groups enjoy the performance gain brought by IC (Interference Cancellation, interference cancellation), for example, UE1 and UE5 in Figure 4, UE2 and UE6, UE3 and UE7, UE4 and UE8.

Specifically, after determining the specific number of groups to be selected, when selecting UEs for time-division scheduling in this period from the candidate set, it includes but is not limited to: selecting one or more groups of UEs for time-division scheduling in this period according to the priority of each UE in the candidate set Scheduled UE. UEs with the same priority are selected in a time slice polling manner.

In practical applications, multiple UEs in the candidate set may be sorted in descending order of priority or from low to high, and UEs with higher priorities are preferentially selected for time-division scheduling. Regarding the priority of the UE, it can be preset, that is, before each UE enters the network, the priority of the UE is set according to the type of the UE or other reference quantities; the number of time-division scheduling can also be performed for each UE , to set the priority of each UE, that is, if the UE performs time-division scheduling more times, the UE has a lower priority, and if the UE performs time-division scheduling less frequently, the UE has a higher priority.

For example, it is preset that all time-division scheduled UEs only occupy the same number of HARQ processes. If they all occupy 1 HARQ process, then each group can schedule 8 users. If they all occupy 4 HARQ processes, then each group can schedule 2 users. user. The user's priority is reflected by the number of scheduling times. For example, in 100 scheduling cycles, high-priority users are scheduled 80 times, and low-priority users are scheduled 20 times.

For another example, it is preset that all time-division scheduled UEs occupy only 1, 2, and 4 HARQ processes, that is, the number of time-division scheduled UEs in a group can only be 8, 4, and 2. Then, if the cell is configured to have up to 2 sets of time-division scheduled UEs, and at least 4 UEs to perform time-division scheduling, the number of time-division scheduled UEs selected from the candidate set can only be 4, 8, 12, and 16. 4, 2, and 1 HARQ processes are assigned to users with high, medium, and low priorities respectively.

Of course, in addition to deciding whether to select the UE for time-division scheduling in this period according to the priority of the UE, it can also be selected in other ways. This embodiment does not limit the method of selecting the UE for time-division scheduling in this period from the candidate set. . No matter which method is used to select UEs for time-division scheduling in this period from the candidate set, in order to ensure the overall performance of time-division scheduling and resource utilization, optionally, the method provided in this embodiment selects one or more groups of UEs from the candidate set After performing time-division scheduling for UEs in this period, for UEs with poor time-division scheduling effects, the method provided in this embodiment also includes:

According to the time-division scheduling effect value, the UE that performs time-division scheduling in this period is switched to code-division scheduling. This embodiment also does not limit the specific time-division scheduling effect value here, which may include but not limited to received power, and time-division scheduling in this period. At least one of the average traffic of the UE in the preset time period and the authorized value. For the UE with poor time-division scheduling effect, switch to the code-division scheduling mode, so as to save time-division scheduling resources, increase the probability of scheduling other UEs, and ensure the performance of time-division scheduling.

204: Allocate a process for UEs performing time-division scheduling in this period, and determine the correspondence between UEs performing time-division scheduling in this period and the allocated processes;

Specifically, processes are allocated to UEs performing time division scheduling in this period according to the priority of UEs performing time division scheduling in this period, and the number of allocated processes is proportional to the priority;

Alternatively, processes are allocated to the UEs performing time division scheduling in this period according to the corresponding relationship between the UEs performing time division scheduling in this period and the previous period.

Among them, after the process is allocated to the UE that performs time division scheduling in this cycle, the effect of time division scheduling on the UE can be measured later, and the number of processes allocated to the UE can be adjusted according to the measured value, and after the number of processes allocated to the UE is adjusted, It is also necessary to correspondingly adjust the corresponding relationship between the UEs performing time-division scheduling in this period and the allocated processes.

Further, when determining the correspondence between UEs performing time-division scheduling in this period and the allocated processes, this embodiment does not limit the expression of the correspondence. For example, the UEs performing time-division scheduling in this period may be listed in the form of a list. There is a one-to-one correspondence with the assigned process, so as to clearly reflect the corresponding relationship between the two. In addition, in order to reflect the corresponding relationship between the two more intuitively, the method provided in this embodiment supports the method of expressing the corresponding relationship between the UE performing time-division scheduling in this cycle and the allocated process with a time-division scheduling pattern. The scheduling pattern can clearly and intuitively reflect the description of which time-division-scheduled UEs are assigned to each group of 8 HARQ processes, as shown in FIG. 3 and FIG. 4 .

When determining the time-division scheduling pattern, the time-division scheduling pattern of this period can be directly determined according to the UE that performs time-division scheduling in this period. In addition, in order to improve the efficiency of determining the time-division scheduling pattern, it can also be based on the time-division scheduling pattern of the previous period and the selected The UE performing time-division scheduling in this period determines the time-division scheduling pattern in this period, that is, determines the correspondence between the UE performing time-division scheduling in this period and the assigned process. In specific implementation, the principle of determining the time-division scheduling pattern of this cycle is: for the same UE that performs time-division scheduling in this cycle and the previous cycle, its corresponding HARQ process should correspond to the time-division scheduling pattern shown in the previous cycle as much as possible The HARQ processes are kept consistent, so as to reduce the number of AG values sent by subsequent activation processes. For example, for a UE that performed time-division scheduling in the previous period, if the processes assigned to it are process 1 and process 5, then if the UE is still selected for time-division scheduling in this period, the processes allocated to it in this period should be as close as possible to the previous process. The processes allocated in the period are consistent, that is, process 1 and process 5 are also allocated to it as much as possible in this period, so, for the UE, the time division scheduling pattern of this period is unchanged from the time division scheduling pattern of the previous period. Therefore, if the UE that performed time-division scheduling in the previous period is still selected for time-division scheduling in this period, it is not necessary to operate the process of the UE, but directly activate the process for the newly added UE that performs time-division scheduling in this period. Of course, in order to maintain the determined time-division scheduling pattern of this period, for UEs that have performed time-division scheduling in the previous period and this period, the assigned process can also be activated. For the specific activation method, see step 205 below.

205: Activate the process allocated to the UE for time division scheduling in this period according to the determined correspondence between the UE and the allocated process in this period.

For this step, if the UE performed time-division scheduling in the previous cycle and was not selected for time-division scheduling this time, it needs to send the AG value to activate the whole process to enable the UE to enter code-division scheduling from time-division scheduling; if the UE is in In the previous period, code-division scheduling was selected, and this time, time-division scheduling is selected. It is necessary to send the AG value of deactivating a single process or the AG value of deactivating all processes and activating a single process, so that the UE enters time-division scheduling from code-division scheduling. In this regard, the method provided in this embodiment activates the process assigned to the UE performing time division scheduling in this period according to the corresponding relationship determined in this period, and does not limit the specific way of activating the process. Since the activation process needs to send the AG value to the corresponding UE, however, the more the number of AG values sent, the longer the delay time will be, and the more system resources will be occupied. In order to reduce the number of sending AG values and reduce the The delay generated by the AG value and the occupied system resources, the method of activating the process allocated to the UE that performs time-division scheduling in this cycle provided by this embodiment includes but is not limited to:

According to the corresponding relationship between the UE and the allocated process determined in this period, send the AG value of deactivating all processes to the UE performing time division scheduling in this period, so that the UE performing time division scheduling in this period deactivates all processes, and then send the AG value to this period The UE that performs time-division scheduling periodically sends the AG value for activating a single process, so that the UE that performs time-division scheduling in this period activates the assigned process;

Or, according to the corresponding relationship between the UE and the assigned process determined in this period, send the AG value of activating all processes to the UE performing time division scheduling in this period, so that the UE performing time division scheduling in this period activates all processes, and then send the AG value to this period The UE that performs time-division scheduling periodically sends the AG value to deactivate a single process, so that the UE that performs time-division scheduling in this period deactivates the unassigned process;

Or, according to the corresponding relationship between the UE and the assigned process determined in this period and the corresponding relationship determined in the previous period, it is determined that the new UE for time division scheduling in this period is determined, and the new UE in this period is activated according to the corresponding relationship determined in this period. The process of UE allocation for time-division scheduling is added.

Further, according to the corresponding relationship between the UE determined in this period and the assigned process, the process assigned to the UE newly added for time division scheduling in this period is activated, specifically including:

According to the corresponding relationship between the UE and the assigned process determined in this cycle, send the AG value of deactivating all processes to the UE newly added in this cycle for time division scheduling, so that the UE newly added for time division scheduling in this cycle deactivates all processes, Then send the AG value for activating a single process to the UE newly added for time division scheduling in this cycle, so that the UE newly added for time division scheduling in this cycle activates the assigned process;

Or, according to the corresponding relationship between the UE and the assigned process determined in this cycle, send the AG value of activating all processes to the UE newly added in time division scheduling in this cycle, so that the UE newly added in time division scheduling in this cycle activates all processes, Afterwards, the AG value for deactivating a single process is sent to the UE newly added for time division scheduling in this cycle, so that the UE newly added for time division scheduling in this cycle deactivates the unassigned process.

It should be noted that this embodiment does not limit the size of the current cycle and the previous cycle mentioned above, that is, it does not limit the size of the time-division scheduling cycle. In practical applications, different time-division scheduling cycles can be set for different cells. It is also possible to set the same time-division scheduling period for all cells, for example, set it to 160ms (milliseconds). For UEs that are not selected for time-division scheduling in this cycle, they can be used as time-division scheduling objects in the next cycle or subsequent cycles, or they can be scheduled in a code-division manner. For the code-division scheduling method, this embodiment does not specifically limit it. Specifically, it can be implemented according to the existing code division scheduling manner.

In the method provided in this embodiment, by determining whether the UE meets the time-division scheduling conditions, one or more groups of UEs for time-division scheduling in this period are selected from the obtained UE candidate set that meets the time-division scheduling conditions, so as to implement time-division scheduling from the perspective of the cell as a whole. Ensure user fairness and differentiation, thereby effectively reducing interference in the cell; and since the UEs that perform time-division scheduling can be in multiple groups, the number of UEs that perform time-division scheduling can be increased, so that UEs that perform time-division scheduling can enjoy interference cancellation characteristic gains; In addition, by judging whether the number of UEs in the candidate set and the number of receiving antennas in the cell reach the threshold, and then performing the relevant steps of time-division scheduling after judging that the number of receiving antennas in the cell reaches the threshold, the performance of time-division scheduling can be guaranteed; The time-division-scheduled UE switches to the code-division-scheduled mode, which can not only ensure the performance of time-division scheduling, but also further improve resource utilization.

Embodiment three

This embodiment provides a time-division scheduling device. Referring to FIG. 5, the time-division scheduling device provided by this embodiment includes:

The first determination module 51 is configured to determine whether the UE meets the time-division scheduling condition according to the parameters of each user equipment UE, and obtain a UE candidate set that meets the time-division scheduling condition;

A selection module 52, configured to select one or more groups of UEs for time division scheduling in this period from the candidate set obtained by the first determination module 51;

An allocation module 53, configured to perform a time-division scheduling UE allocation process for the current period selected by the selection module 52;

The second determination module 54 is configured to determine the correspondence between the UE selected by the selection module 52 for time division scheduling in this period and the process allocated by the allocation module 53;

The activation module 55 is configured to activate the process allocated by the allocation module 53 for the UE that performs time-division scheduling in this period according to the correspondence between the UE and the allocated process determined by the second determination module 54 in this period.

Among them, the first determination module 51 is specifically configured to determine whether the UE conforms to time-division scheduling according to at least one parameter of each UE's moving speed, transmission time interval, data transmission amount within a preset time period, and chip offset condition.

Optionally, in order to ensure the effect of time division scheduling, see Figure 6, the device also includes:

The judging module 56 is used to judge whether the number of UEs in the candidate set and the number of receiving antennas in the cell reach the threshold. If so, the selection module 52 continues to execute the step of selecting one or more groups of UEs for time division scheduling in this period from the candidate set.

Further, the selection module 52 is also used to set the fixed number of groups of UEs performing time-division scheduling in this cycle according to the configuration parameters of the cell, or dynamically adjust the grouping of UEs performing time-division scheduling in this cycle according to the configuration parameters and measured values of the cell number;

Wherein, the configuration parameters of the cell include at least the number of receiving antennas and the number of AG code channels;

The measurement value includes at least the number of UEs in the candidate set within the preset time period and the time-division scheduling effect value. The time-division scheduling effect value includes at least the received power, the average traffic of UEs performing time-division scheduling in this cycle within the preset time period, and the authorized value. A sort of.

Specifically, the selection module 52 is specifically configured to select one or more groups of UEs for time division scheduling in this period according to the priority of each UE in the candidate set obtained by the first determination module 51 .

For the method of determining the number of groups by the selection module 52 and the method of selecting one or more groups of UEs for time-division scheduling in this period from the candidate set, refer to the relevant description of step 203 in the second embodiment above, and details are not repeated here.

Optionally, referring to Figure 7, the device also includes:

The switching module 57 is used for the selection module 52 to select one or more groups of UEs for time-division scheduling in this period from the candidate set, and switch the UEs for time-division scheduling in this period to code-division scheduling according to the time-division scheduling effect value, the time-division scheduling effect The value includes at least one of the received power, the average traffic of UEs performing time-division scheduling in this period within the preset time period, and the grant value.

Specifically, the allocation module 53 is specifically configured to allocate processes for UEs performing time division scheduling in this period according to the priority of UEs performing time division scheduling in this period, and the number of allocated processes is proportional to the priority; or, perform time division scheduling according to this period The corresponding relationship between the scheduled UEs and the one obtained in the previous cycle is the allocation process of UEs for time-division scheduling in this cycle.

For the manner in which the allocation module 53 allocates processes for the UEs that perform time-division scheduling in this period, refer to the relevant description of step 204 in the second embodiment above, and will not be repeated here.

Specifically, for the way in which the activation module 55 activates the process assigned to the UE that performs time division scheduling in this cycle according to the corresponding relationship between the UE and the assigned process determined in this cycle, please refer to the relevant description of step 205 in the second embodiment above. , which will not be repeated here. Referring to Fig. 8, the activation module 55 specifically includes:

The first sending unit 551 is configured to send the AG value of deactivating all processes to the UE performing time division scheduling in this period according to the corresponding relationship between the UE and the assigned process determined in this period, so that the UE performing time division scheduling in this period deactivates Activate all processes;

The second sending unit 552 is configured to send the AG value for activating a single process to the UE performing time division scheduling in this period, so that the UE performing time division scheduling in this period activates the assigned process;

Or, referring to FIG. 9, the activation module 55 specifically includes:

The third sending unit 553 is configured to send the AG value of activating all processes to the UE performing time division scheduling in this period according to the corresponding relationship between the UE and the assigned process determined in this period, so that the UE performing time division scheduling in this period activates all processes. process;

The fourth sending unit 554 is configured to send the AG value of deactivating a single process to the UE performing time division scheduling in this period, so that the UE performing time division scheduling in this period deactivates the unallocated process;

Or, referring to FIG. 10, the activation module 55 specifically includes:

The determining unit 555 is configured to determine a new UE for time-division scheduling in this period according to the correspondence between the UE and the assigned process determined in this period and the correspondence determined in the previous period;

The activating unit 556 is configured to activate, according to the corresponding relationship determined in this period, a process of allocating UEs newly added for time-division scheduling in this period.

Further, referring to FIG. 11, the activation unit 556 specifically includes:

The first sending subunit 5561 is configured to send the AG value of deactivating all processes to the UE newly added for time division scheduling in this cycle according to the corresponding relationship between the UE and the assigned process determined in this cycle, so that the newly added process in this cycle The time division scheduled UE deactivates all processes;

The second sending subunit 5562 is configured to send the AG value of activating a single process to the UE newly added for time division scheduling in this cycle, so that the UE newly added for time division scheduling in this cycle activates the assigned process;

Or, referring to FIG. 12, the activation unit 556 specifically includes:

The third sending subunit 5563 is configured to send the AG value of activating all the processes to the UE newly added to the time-division scheduling in this period according to the corresponding relationship between the UE and the assigned process determined in this period, so that the time-division scheduling is newly added in this period The scheduled UE activates all processes;

The fourth sending subunit 5564 is configured to send the AG value of deactivating a single process to the UE newly configured for time division scheduling in this cycle, so that the UE newly configured for time division scheduling in this cycle deactivates unallocated processes.

It should be noted that the time-division scheduling device provided in this embodiment may specifically be a network side device, and the specific network side device is not limited in this embodiment, for example, it may be a base station or the like.

The device provided in this embodiment, by determining whether the UE meets the time-division scheduling conditions, selects one or more groups of UEs for time-division scheduling in this cycle from the obtained UE candidate set that meets the time-division scheduling conditions, so as to implement time-division scheduling from the perspective of the cell as a whole. Ensure user fairness and differentiation, thereby effectively reducing interference in the cell; and since the UEs that perform time-division scheduling can be in multiple groups, the number of UEs that perform time-division scheduling can be increased, so that UEs that perform time-division scheduling can enjoy interference cancellation characteristic gains; In addition, by judging whether the number of UEs in the candidate set and the number of receiving antennas in the cell reach the threshold, and then performing the relevant steps of time-division scheduling after judging that the number of receiving antennas in the cell reaches the threshold, the performance of time-division scheduling can be guaranteed; The time-division-scheduled UE switches to code-division scheduling, etc., which can not only ensure the performance of time-division scheduling, but also further improve resource utilization.

It should be noted that: when the time-division scheduling device provided by the above-mentioned embodiments performs time-division scheduling, it only uses the division of the above-mentioned functional modules as an example. In practical applications, the above-mentioned function allocation can be completed by different functional modules according to needs. That is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the time-division scheduling device and the time-division scheduling method embodiments provided in the above-mentioned embodiments belong to the same concept, and the specific implementation process thereof can be found in the method embodiments, and will not be repeated here.

Those of ordinary skill in the art can understand that all or part of the steps for implementing the above embodiments can be completed by hardware, and can also be completed by instructing related hardware through a program. The program can be stored in a computer-readable storage medium. The above-mentioned The storage medium mentioned may be a read-only memory, a magnetic disk or an optical disk, and the like.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (16)

1. A time-division scheduling method, characterized in that the method comprises: Determine whether the UE meets the time division scheduling condition according to the parameters of each user equipment UE, and obtain a UE candidate set that meets the time division scheduling condition; Selecting one or more groups of UEs performing time division scheduling in this period from the candidate set, and assigning a process to the UEs performing time division scheduling in this period, and determining the correspondence between the UEs performing time division scheduling in this period and the allocated processes; According to the corresponding relationship between the UE and the allocated process determined in this period, send the absolute authorized channel AG value of deactivating all processes to the UE performing time division scheduling in this period, so that the UE performing time division scheduling in this period deactivates all processes , and then send the AG value for activating a single process to the UE that performs time division scheduling in this cycle, so that the UE that performs time division scheduling in this cycle activates the assigned process; or, according to the relationship between the UE and the assigned process determined in this cycle The corresponding relationship sends the AG value of activating all processes to the UE that performs time division scheduling in this cycle, so that the UE that performs time division scheduling in this cycle activates all processes, and then sends the AG value that deactivates a single process to the UE that performs time division scheduling in this cycle. Deactivate the unassigned process for the UE performing time-division scheduling in this cycle; or, determine the newly added process in this cycle according to the corresponding relationship between the UE and the allocated process determined in this cycle and the corresponding relationship determined in the previous cycle. time-division-scheduled UEs, and activate processes assigned to UEs newly added for time-division scheduling in this period according to the correspondence between the UEs determined in this period and the allocated processes. 2. The method according to claim 1, wherein the determining whether the UE meets the time-division scheduling condition according to the parameters of each user equipment UE specifically includes: Whether the UE meets the time-division scheduling condition is determined according to at least one parameter of each UE's moving speed, transmission time interval, data transmission amount within a preset time period, and chip offset. 3. The method according to claim 1, characterized in that the method further comprises: Judging whether the number of UEs in the candidate set and the number of receiving antennas of the cell reach the threshold, if so, proceed to the step of selecting one or more groups of UEs from the candidate set for time division scheduling in this period. 4. The method according to any one of claims 1 to 3, further comprising: Setting the fixed number of groups of UEs performing time-division scheduling in this cycle according to the configuration parameters of the cell, or dynamically adjusting the number of groups of UEs performing time-division scheduling in this cycle according to the configuration parameters and measured values of the cell; Wherein, the configuration parameters of the cell include at least the number of receiving antennas and the number of absolute authorized channel AG codes; The measurement value includes at least the number of UEs in the candidate set within a preset time period and a time-division scheduling effect value, and the time-division scheduling effect value includes at least received power, an average One of traffic and authorization values. 5. The method according to claim 4, wherein the selecting one or more groups of UEs for time-division scheduling in this period from the candidate set specifically comprises: According to the priority of each UE in the candidate set, one or more groups of UEs for time division scheduling in this period are selected. 6. The method according to claim 4, characterized in that the method further comprises: Switch the UEs performing time division scheduling in this period to code division scheduling according to the time division scheduling effect value. The time division scheduling effect value includes at least the received power, the average traffic of the UEs performing time division scheduling in this cycle within a preset time period, and the authorization value. kind of. 7. The method according to claim 4, wherein the UE allocation process for time-division scheduling for this period specifically includes: According to the priority of UEs performing time-division scheduling in this period, processes are allocated to UEs performing time-division scheduling in this period, and the number of allocated processes is proportional to the priority; Alternatively, processes are allocated to the UEs performing time division scheduling in this period according to the corresponding relationship between the UEs performing time division scheduling in this period and the previous period. 8. The method according to claim 1, wherein the process determined according to the corresponding relationship between the UE and the allocated process in this cycle is activated as a process allocated to the UE newly added for time-division scheduling in this cycle, Specifically include: According to the corresponding relationship between the UE and the assigned process determined in this cycle, send the AG value of deactivating all processes to the UE newly added in time division scheduling in this cycle, so that the UE newly added in time division scheduling in this cycle deactivates all process, and then send the AG value for activating a single process to the UE newly added for time division scheduling in this cycle, so that the UE newly added for time division scheduling in this cycle activates the assigned process; Or, according to the corresponding relationship between the UE and the assigned process determined in this cycle, send the AG value of activating all processes to the UE newly added in time division scheduling in this cycle, so that the UE newly added in time division scheduling in this cycle activates all processes. process, and then send the AG value of deactivating a single process to the UE newly added for time division scheduling in this cycle, so that the UE newly added for time division scheduling in this cycle deactivates the unassigned process. 9. A time-division scheduling device, characterized in that the device comprises: The first determining module is configured to determine whether the UE meets the time-division scheduling condition according to the parameters of each user equipment UE, and obtain a UE candidate set that meets the time-division scheduling condition; A selection module, configured to select one or more groups of UEs for time division scheduling in this period from the candidate set obtained by the first determination module; An allocation module, configured to perform a time-division scheduled UE allocation process for the current period selected by the selection module; The second determination module is configured to determine the correspondence between the UEs selected by the selection module for time-division scheduling in this period and the processes allocated by the allocation module; Activation modules, specifically: The first sending unit is configured to send the absolute authorized channel AG value of deactivating all processes to the UE performing time division scheduling in this period according to the corresponding relationship between the UE and the assigned process determined in this period, so that the time division scheduling is performed in this period The scheduled UE deactivates all processes; The second sending unit is configured to send the AG value for activating a single process to the UE performing time division scheduling in this cycle, so that the UE performing time division scheduling in this cycle activates the assigned process; Or, the activation module specifically includes: The third sending unit is configured to send the AG value of activating all processes to the UE performing time division scheduling in this period according to the corresponding relationship between the UE and the assigned process determined in this period, so that the UE performing time division scheduling in this period activates all processes; The fourth sending unit is configured to send the AG value of deactivating a single process to the UE performing time division scheduling in this cycle, so that the UE performing time division scheduling in this cycle deactivates the unallocated process; Or, the activation module specifically includes: The determining unit is configured to determine a new UE for time-division scheduling in this cycle according to the corresponding relationship between the UE and the assigned process determined in this cycle and the corresponding relationship determined in the previous cycle; The activating unit is configured to activate, according to the correspondence between the UE and the allocated process determined in the current period, the process allocated to the newly added UE in the current period for time-division scheduling. 10. The device according to claim 9, wherein the first determination module is specifically configured to base the mobile speed of each UE, the transmission time interval, the amount of data sent within a preset time period, and chips At least one parameter in the offset determines whether the UE is eligible for time division scheduling. 11. The device according to claim 9, further comprising: A judging module, configured to judge whether the number of UEs in the candidate set and the number of receiving antennas in the cell reach a threshold, and if yes, the selection module continues to select one or more groups from the candidate set for time-division scheduling in this period UE steps. 12. The device according to any one of claims 9 to 11, wherein the selection module is further configured to set a fixed number of groups of UEs performing time-division scheduling in this cycle according to configuration parameters of the cell, or dynamically adjusting the number of groups of UEs performing time-division scheduling in this period according to configuration parameters and measurement values of the cell; Wherein, the configuration parameters of the cell include at least the number of receiving antennas and the number of absolute authorized channel AG codes; The measurement value includes at least the number of UEs in the candidate set within a preset time period and a time-division scheduling effect value, and the time-division scheduling effect value includes at least received power, an average One of traffic and authorization values. 13. The device according to claim 12, wherein the selection module is specifically configured to select one or more groups of UEs in the current cycle according to the priority of each UE in the candidate set obtained by the first determination module. Time division scheduled UE. 14. The device according to claim 12, further comprising: A switching module, configured to switch UEs performing time-division scheduling in this cycle to code-division scheduling according to the time-division scheduling effect value, the time-division scheduling effect value at least including received power, the average value of UEs performing time-division scheduling in this cycle within a preset time period One of traffic and authorization values. 15. The device according to claim 12, wherein the allocation module is specifically configured to assign processes to UEs performing time division scheduling in this cycle according to the priority of UEs performing time division scheduling in this cycle, and the number of allocated processes is It is proportional to the priority; or, according to the corresponding relationship between UEs performing time-division scheduling in this period and the previous period, assign processes to UEs performing time-division scheduling in this period. 16. The device according to claim 9, wherein the activation unit specifically comprises: The first sending subunit is configured to send the AG value of deactivating all processes to the UE newly added for time division scheduling in this cycle according to the corresponding relationship between the UE and the assigned process determined in this cycle, so that the newly added process in this cycle The UE performing time-division scheduling deactivates all processes; The second sending subunit is used to send the AG value of activating a single process to the UE newly added for time division scheduling in this cycle, so that the UE newly added for time division scheduling in this cycle activates the assigned process; Alternatively, the activation unit specifically includes: The third sending subunit is used to send the AG value of activating all processes to the UE newly added in this cycle according to the corresponding relationship between the UE and the assigned process determined in this cycle, so that the newly added process in this cycle Time division scheduled UE activates all processes; The fourth sending subunit is configured to send the AG value of deactivating a single process to the UE newly added for time division scheduling in this cycle, so that the UE newly added for time division scheduling in this cycle deactivates an unassigned process.