TWI690225B - Method of grouping user devices - Google Patents

Abstract

A method of grouping user devices includes configuring one or more codes for each user device by a base station, with each code corresponds to a delay tolerance; by a base station, performing a grouping task to form a plurality of first-type groups and a plurality of second-type groups according to the delay tolerances and a result of determining traffic demands, wherein each first-type group corresponds to a first-group delay tolerance and each second-type group corresponds to a second-group delay tolerance; by a base station, forming a plurality of target groups by selecting from the user devices in the each first-type group and the each second-type group based on the first-group delay tolerances and the second-group delay tolerances.

Description

Grouping method of user equipment

The invention relates to a grouping method of user equipment.

In the field of long-term evolution (LTE) networks, in order to improve the efficiency of spectrum use and provide better service quality for users, the network often requires the users to measure and report wireless channels. The base station can adjust the relevant parameters of the user equipment, so that the utilization efficiency of the channel resources is improved.

Generally speaking, the base station is connected to multiple user equipments, and the parameter characteristics possessed by these user equipments, such as delay tolerance, may be different. When there are a large number of user equipments, due to the difference in characteristics of these parameters, the base station cannot easily adjust the parameters of these user equipments to improve the efficiency of the use of channel resources.

The present invention proposes a user equipment grouping method, which mainly groups multiple user equipments, so that user equipments in the same group have corresponding delay upper limits, so that the base station can target each user equipment in each group. Parameter adjustment.

According to one embodiment of the present invention, a user equipment grouping method is disclosed, which is suitable for multiple user equipments connected to a base station. The grouping method includes configuring one or more codes for each user equipment with a base station, where each code corresponds to a Delay upper limit; the base station executes a grouping task based on the delay upper limit and the channel demand judgment result corresponding to each user equipment to form one or more first type groups and one or more second type groups, Each first type group corresponds to a first group delay upper limit and each second type group corresponds to a second group delay upper limit; the base station bases the first group delay upper limit and the second group delays The upper limit of delay is selected by the user equipments in the first type group and the second type group to form one or more target groups.

In summary, in the method for grouping user equipment proposed by the present invention, the user equipment is primarily grouped by the base station according to the maximum delay upper limit and the minimum delay upper limit, and then according to the channel demand of the user equipment (traffic demand ) And remove part of the user equipment from the corresponding type group. Then, the user equipments in these types of groups with the same group delay upper limit are selected to form a target group. Finally, determine the sum of the normalized channel demand values of the target group to decide whether to further divide the target group. In this way, multiple user equipments can be properly grouped into different groups, so that the base station can individually adjust the parameters of these user equipments in a single group, so as to improve the channel resource utilization efficiency of the user equipments in a single group .

The above description of the disclosure and the following description of the embodiments are used to demonstrate and explain the spirit and principle of the present invention, and provide a further explanation of the scope of the patent application of the present invention.

The following describes in detail the detailed features and advantages of the present invention in the embodiments. The content is sufficient for any person skilled in the relevant art to understand and implement the technical content of the present invention, and according to the contents disclosed in this specification, the scope of patent application and the drawings Anyone skilled in the relevant art can easily understand the purpose and advantages of the present invention. The following examples further illustrate the views of the present invention in detail, but do not limit the scope of the present invention in any way.

Please refer to FIGS. 1 and 2 together. FIG. 1 is a block diagram of a long-range evolution network architecture according to an embodiment of the present invention, and FIG. 2 is a user equipment according to an embodiment of the present invention. Flow chart of the grouping method. As shown in FIG. 1, the long-range evolution network architecture includes a base station eNB and multiple user equipments 1-8. The base station eNB communicates with the user equipments 1-8. In practice, the base station eNB is equipped with a radio resource control (RRC) layer and a media access control (MAC) layer, and the base station eNB may have a scheduler set on the media access control (MAC) layer. The radio resource control (RRC) layer of the base station eNB can be used to set periodic channel state information (CSI) report parameters and discontinuous reception (DRX) parameters of the user equipments.

As shown in the flow of the grouping method in FIG. 2, in step S201, the base station eNB configures one or more codes of each user equipment 1-8, where each code corresponds to an upper delay limit. In step S202, the base station eNB performs a grouping task according to the delay upper limit and the channel demand judgment result corresponding to each user equipment, thereby forming one or more first type groups and one or more second type groups group. Each first type group corresponds to a first group delay upper limit and each second type group corresponds to a second group delay upper limit.

In an embodiment, the step S201 includes configuring one or more codes of the user equipment by the base station eNB according to the service type of each user equipment. The service types mentioned can be various services such as voice/video transmission, interactive games, mail/community communication, file sharing, etc., which are not listed here one by one.

In step S203, the base station eNB selects from the user equipments in the first type group and the second type group according to the first group delay upper limit and the second group delay upper limit to form a Or multiple target groups.

In one embodiment, the grouping method of the present invention further includes in step S204, the base station eNB determines whether to target these target groups based on the sum of the normalized channel demand values of the user equipment in each target group At least one of the groups is divided.

To further illustrate the grouping method of the present invention, please refer to FIG. 3 and Table 1 together. FIG. 3 is a detailed method flowchart of a user equipment grouping method according to another embodiment of the present invention, and Table 1 is based on In a look-up table according to an embodiment of the present invention, the upper limit of delay D _p,i described in the following example, where p represents a code and i represents a number of a user equipment (such as numbers 1-8 in FIG. 1). The flow of steps S301 to 304 in FIG. 3 is substantially the same as steps S201 to S204 in FIG. 2, but the difference is that step S302 in FIG. 3 includes sub-steps S3021 to 3023, and step S304 includes sub-steps S3041 to 3042.

As shown in FIG. 3, first in step S301, the base station eNB configures one or more codes for each user equipment 1-8, such as codes 1 to 9 shown in Table 1, and each configured code corresponds to a delay Upper limit.

In sub-step S3021 of step S302, the base station eNB divides the user equipment into one or more initial first type groups and the one or more initial second type groups according to the delay upper limits. In one embodiment, the sub-step S3021 includes the base station eNB selecting user equipment with the same minimum delay upper limit from the user equipments 1-8 to form the one or more initial first type groups, and The base station eNB selects user equipment having the same maximum delay upper limit from the user equipments 1-8 to form the one or more initial second type groups. The following will be explained with practical examples. Table I

In this example, assuming that user equipment 1 provides service types TP1, TP2, and TP6, it has a delay upper limit D _2,1 of 100 milliseconds (ms), a delay upper limit D _4,1 of 150 milliseconds, and a delay upper limit D _6,1 It is 300 milliseconds. The user equipment 2 provides service types TP2, TP3, and TP7, and has a delay upper limit D _4,2 of 150 milliseconds, a delay upper limit D _3,2 of 50 milliseconds, and a delay upper limit D _7,2 of 100 milliseconds. The user equipment 3 provides service types TP2 and TP8, and has an upper limit of delay D _4,3 of 150 milliseconds and an upper limit of delay D _8,3 of 300 milliseconds. The user equipment 4 provides service types TP1, TP2, and TP9, which have a delay upper limit D _2,4 of 100 milliseconds, a delay upper limit D _4,4 of 150 milliseconds, and a delay upper limit D _9,4 of 300 milliseconds. The user equipment 5 provides service types TP2 and TP3, and has an upper limit of delay D _4,5 of 150 milliseconds and an upper limit of delay D _3,5 of 50 milliseconds. The user equipment 6 provides service types TP3 and TP7, and has an upper limit of delay D _3,6 of 50 milliseconds and an upper limit of delay D _7,5 of 100 milliseconds. The user equipment 7 provides service types TP3 and TP5, and has an upper limit of delay D _3,7 of 50 milliseconds and an upper limit of delay D _1,7 of 100 milliseconds. The user equipment 8 provides service types TP2 and TP3, and has an upper limit of delay D _4,8 of 150 milliseconds and an upper limit of delay D _3,8 of 50 milliseconds.

Please further refer to Table 2 and FIG. 4, which is a summary table of the upper limit of the delay of the user equipment according to an embodiment of the present invention, and FIG. 4 is a schematic diagram of preliminary grouping according to an embodiment of the present invention. Based on the foregoing example, as shown in Table 2 and FIG. 4, the user equipments 1, 4 have the same minimum delay upper limit of 100 milliseconds, so the base station eNB classifies the user equipments 1, 4 as an initial first type group Gm1 . The user equipment 3 has a minimum delay upper limit of 150 milliseconds, which is separately classified by the base station eNB as another initial first type group Gm2. The user equipments 2, 5, 6, 7, and 8 have the same minimum delay upper limit of 50 milliseconds, so the base station eNB classifies the user equipments 2, 5, 6, 7, and 8 as another initial first type group Gm3. In this embodiment, the upper limit of the first group delay corresponding to the initial first type group Gm1 is 100 milliseconds, the upper limit of the first group delay corresponding to the initial first type group Gm2 is 150 milliseconds, and the initial first The upper limit of the first group delay corresponding to the type group Gm3 is 50 ms.

On the other hand, the user equipments 1, 3, and 4 have the same maximum delay upper limit of 300 milliseconds, so the base station eNB classifies the user equipments 1, 3, and 4 as an initial second type group G11. The user equipments 2, 5, 8 have the same maximum delay upper limit of 150 milliseconds, so the base station eNB classifies the user equipments 2, 5, 8 as another initial second type group G12. The user equipments 6, 7 have the same maximum delay upper limit of 100 milliseconds, so the base station eNB classifies the user equipments 6, 7 as another initial second type group G13. In this embodiment, the upper limit of the second group delay corresponding to the initial second type group Gl1 is 300 milliseconds, the upper limit of the second group delay corresponding to the initial second type group Gl2 is 150 milliseconds, and the initial second The upper limit of the second group delay corresponding to the type group G13 is 100 milliseconds. Table II

In step S3022, the base station eNB determines whether each user equipment in each initial second type group has a traffic demand (traffic demand) to selectively select at least one user equipment in the initial second type group Remove from this initial second type group to form one or more second type groups. In an embodiment, the step S3022 includes when the base station eNB determines that at least one of the user equipments in one of the initial second type groups has a channel requirement, the base station eNB initiates the user equipment from the second The type groups are removed to form one or more second type groups.

In step S3023, the base station eNB determines whether each user equipment in each initial first type group has a channel requirement, so as to selectively select at least one user equipment in the initial first type group from the first The type group is removed to form one or more first type groups. In an embodiment, the step S204 includes when the base station eNB determines that at least one of the user equipments in one of the initial first-type groups does not have a channel requirement, the base station eNB initiates One type group is removed to form one or more first type groups.

＞ 0時，則代表此用戶設備具有通道需求。反之，當

= 0時，則代表此用戶設備不具有通道需求。 In more detail, the code of a user equipment corresponds to a normalized channel-usage demand. Suppose a user equipment has a normalized channel requirement R _p,i , where p represents the code and i represents the number of the user equipment (numbers 1-8 in Figure 1). In practice, the way to determine whether the user equipment has channel requirements is as follows:

> 0, it means that the user equipment has channel requirements. On the contrary, when

= 0, it means that the user equipment does not have channel requirements.

Based on the foregoing example, it is assumed that the user equipments 1, 3, 5, 7 have channel requirements, and the remaining user equipments 2, 4, 6, 8 do not have channel requirements. At this time, the base station eNB removes the user equipment 1, 3 in the initial second type group Gl1 from the initial second type group Gl1, and removes the user equipment 5 in the initial second type group Gl2 from the initial second type The group G12 is removed, and the user equipment 7 in the initial second type group G13 is removed from the initial second type group G13. On the other hand, the base station eNB removes the user equipment 4 in the initial first type group Gm1 from this initial first type group Gm1, and removes the user equipment 2, 6, 8 in the initial first type group Gm3 from then on Removed from the initial first type group Gm3.

In the foregoing embodiment, the base station eNB first performs preliminary grouping according to the maximum delay upper limit and the minimum delay upper limit of the user equipment, and then determines whether each user equipment has a channel requirement, and removes part of the user equipment one by one. In another embodiment, the base station eNB may first determine whether each user equipment has a channel requirement, and then perform grouping according to the maximum delay upper limit and the minimum delay upper limit of the user equipment and remove part of the user equipment according to the determination of the channel requirement. In other words, the present invention is not limited to the order of the maximum and minimum delay upper grouping and channel demand judgment shown in step S302 of FIG. 3.

Please further refer to FIG. 5, which is a schematic diagram of grouping according to an embodiment of the invention. After removing the specific user equipment according to the channel requirements through the aforementioned base station eNB, the obtained grouping state of the user equipment is shown in FIG. 5 in detail. That is, after performing the above grouping task, the first type group Gm1'~Gm3' and the second type group Gl1'~Gl3' as shown in FIG. 5 can be finally formed. Then, the base station eNB can further form one or more target groups according to this grouping state.

Specifically, as in step S303, the base station eNB uses the user equipments in the first type group and the second type group according to the first group delay upper limit and the second group delay upper limit Make selections to form one or more target groups. In one embodiment, the step S303 includes when the base station eNB determines that one of the first group delay upper limits is equal to one of the second group delay upper limits, selects the one corresponding to the first group delay upper limit The user equipment in the first type group and the user equipment in this second type group corresponding to the second group delay upper limit form the target group.

In more detail, please refer to FIG. 6, which is a schematic diagram of target grouping according to an embodiment of the invention. In FIG. 5, since the upper limit of the second group delay corresponding to the second type group G12' is 150 milliseconds, and the upper limit of the first group delay corresponding to the first type group Gm2' is also 150 milliseconds, the base station The eNB can select the user equipment 2, 8 in the second type group G12' and the user equipment 3 in the first type group Gm2' to form a target group Gk1, as shown in FIG. On the other hand, since the second group delay upper limit corresponding to the second type group G13' is 100 milliseconds, and the first group delay upper limit corresponding to the first type group Gm1' is also 100 milliseconds, the base station eNB The user equipment 6 in the second type group G13' and the user equipment 1 in the first type group Gm1' can be selected to form a target group Gk2, as shown in FIG.

Next, in sub-step S3041 of step S304, the base station eNB determines whether the sum of the normalized channel demand values of the user equipment in any of the target groups in the target groups is greater than 1, and in the sub-step In S3042, if the total value of the normalized channel requirements of the user equipment in any of the target groups is greater than 1, the target group is divided by the base station eNB.

所計算而得到。 Taking the target group Gk1 in the embodiment of FIG. 6 as an example, it is assumed that the normalized channel demand R ₂ of the user equipment ₂ is 0.2, the normalized channel demand R ₃ of the user equipment ₃ is 0.3, and the normalized channel demand of the user equipment 8 The R ₈ series is 0.7. In this case, the base station eNB determines that the total value of the normalized channel requirements of the user equipment in the target group Gk1 is greater than 1, so the target group Gk1 needs to be divided. The value of the aforementioned normalized channel demand can be

Calculated.

In an embodiment, the base station eNB dividing the target group includes the base station eNB selecting the user equipment with the maximum normalized channel demand in the target group to form another target group other than the target groups group. In the foregoing example, since the user equipment 8 has the largest value of the normalized channel demand, the base station eNB removes the user equipment 8 from the target group Gk1 to form another target group Gk3 (including the user equipment 8 (Not shown). The foregoing division method of the target group is only for illustration, and the invention is not limited thereto. In practice, after the sub-step S3042 is executed, it returns to the sub-step S3041 to make a judgment again until the sum of the normalized channel demand values of all the user equipments in the target group is less than 1. In other words, when the base station eNB judges that the sum of the normalized channel requirements of the user equipment in each target group is less than or equal to 1, the grouping method ends.

In practice, after the aforementioned grouping of target groups is completed, the base station eNB can further assign different physical uplink control channel resources to different target groups, and target multiple users in the same target group The device allocates resources for channel status return. The following will describe the allocation of channel status reporting resources of multiple user equipments in a single target group.

In an embodiment, the grouping method proposed by the present invention further includes: sending, by the base station eNB, radio resource control (RRC) configuration messages to the user equipments in one of the target groups, the RRC configuration message includes a period Channel status information reporting parameters and discontinuous reception parameters. Periodic channel status information reporting parameters include reporting period, reporting time shift and physical uplink control channel (PUCCH) resource information; when the base station eNB is based on the user equipment’s When the operation state predicts that multiple conflicting user equipments in the target group will perform channel status information reporting, the base station eNB determines that one of the multiple conflicting user equipments will perform channel status information reporting and sends a sleep Command to other conflicting user equipment other than this conflicting user equipment that can report channel status information. The RRC configuration message sent to the user equipments in the target group includes the same report period, the same report time shift, and the same PUCCH resource information. The sleep command may be a DRX Command of MAC CONTROL ELEMENT (DRX CE), but it is not limited to this.

Taking the target group GK2 as a practical example to explain the above-mentioned embodiments, please refer to FIG. 1, FIG. 6, FIG. 7A and FIG. 7B together. FIG. 7A is a preliminary setting waveform of a user equipment according to an embodiment of the present invention. FIG. 7B is an actual operation waveform diagram of the user equipment according to an embodiment of the invention. The base station eNB sends radio resource control (RRC) configuration messages to the user equipment 1 and the user equipment 6 individually. As shown in the preliminary setting waveform diagram of FIG. 7A, the discontinuous reception parameter DRX1 configured for the user equipment 1 includes the discontinuous reception period P1 , The wake-up time shift SD1 and the wake-up duration TD1, and the discontinuous reception parameter DRX2 configured for the user equipment 6 includes the discontinuous reception period P2, the wake-up time shift SD2 and the wake-up duration TD2.

The wake-up duration and sleep time will be repeated in a periodic manner to form a discontinuous reception (Discontinuous Reception) power saving mechanism. In this embodiment, the user equipment 1 and the user equipment 6 are configured with the same payback period (such as C1 shown in FIG. 7A), payback time shift (such as SC shown in FIG. 7A) and PUCCH resources (such as shown in FIG. 7A CSI1). After configuring the foregoing parameters of the user equipment 1 and the user equipment 6, the base station eNB further predicts the user equipment 1 and the user equipment 6 in the target group Gk2 according to the operating states of the user equipment 1 and the user equipment 6 Channel status information report will be executed at the same time. At this time, the base station eNB determines that the user equipment 1 and the user equipment 6 are conflicting user equipment.

In more detail, as shown in the actual operation waveform diagram of FIG. 7B, since the user equipment 1 and the user equipment 6 are both in the active state ON at the status information return time t1, the base station eNB determines that the user equipment 1 and the user equipment 6 will occur Channel status information reporting conflicts, so the base station eNB can decide to perform channel status information reporting for one of the two user equipments based on the data transmission status of user equipment 1 and user equipment 6, while the other user equipment receives sleep from the base station eNB Command to enter the inactive state OFF. The sleep command may be a DRX Command of MAC CONTROL ELEMENT (DRX CE), but it is not limited to this.

Taking the embodiment of FIG. 7B assuming that the user equipment 1 will perform data transmission and the user equipment 6 does not perform data transmission, the base station eNB decides that the user equipment 1 performs channel status information reporting, and on the other hand, sends sleep An instruction is given to the user equipment 6 to force it to enter the sleep state (ie, the inactive state is OFF). With the above method, the conflict of channel status information reporting between the user equipment 1 and the user equipment 6 can be avoided, and PUCCH resource sharing between different user equipments in the same target group can be achieved. The sleep command may be a DRX Command of MAC CONTROL ELEMENT (DRX CE), but it is not limited to this.

The foregoing embodiments of FIG. 7A and FIG. 7B mainly use the sleep command issued by the base station eNB to force the user equipment that does not perform data transmission to enter the sleep state to dynamically allocate physical uplink control channel resources to the user equipment for periodic The channel status information is reported to improve the utilization efficiency of the physical uplink control channel resources and thereby reduce the overall demand for physical uplink control channel resources. In another embodiment, the above purpose can be achieved by configuring a discontinuous reception period and a status information reporting period with a specific period length relationship, which will be described in detail below. The sleep command may be a DRX Command of MAC CONTROL ELEMENT (DRX CE), but it is not limited to this.

In an embodiment, the grouping method proposed by the present invention further includes: performing a scheduling algorithm with the base station eNB to obtain a payback period, a payback time shift, and the user equipments corresponding to one of the target groups The discontinuous reception period of each user equipment in the system, the wake-up time displacement corresponding to each user equipment, and the wake-up duration corresponding to each user equipment, so that the wake-up period of each user equipment does not overlap with the channel return time ; The base station eNB transmits radio resource control (RRC) configuration messages to the user equipment, and the RRC configuration message includes report cycle, report time shift, uplink control channel (PUCCH) resource information, and the corresponding The discontinuous reception period of the user equipment of the RRC configuration message, the wake-up time shift of the user equipment corresponding to receiving the RRC configuration message, and the wake-up duration of the user equipment corresponding to receiving the RRC configuration message. The RRC configuration messages sent to the user equipments have the same report period, the same channel report time, and the same PUCCH resource information.

The following also uses the target group GK2 as a practical example to illustrate the above embodiment. Please refer to FIG. 1, FIG. 5, FIG. 8A and FIG. 8B together, where FIG. 8A is a preliminary waveform diagram of user equipment according to another embodiment of the present invention, and FIG. 8B is another diagram according to the present invention. The actual operation waveform diagram of the user equipment shown in the embodiment. As shown in FIG. 8A, a processor (not shown) in the base station eNB first executes a scheduling algorithm to obtain the status information reporting period C2, reporting time shift SC, and corresponding to the discontinuousness of the user equipment 1 and the second user equipment 6 The receiving periods P1' and P2', the wake-up time shift SD1, SD2, and the wake-up duration TD1 and TD2.

After obtaining the above parameters, the processor inside the base station eNB further sends RRC configuration messages to user equipment 1 and user equipment 6, respectively, where the RRC configuration messages include status information reporting period C2, reporting time shift SC and PUCCH resources (For example, CSI2 shown in FIG. 8A). The RRC configuration message further includes discontinuous reception periods P1' and P2' corresponding to user equipment 1 and user equipment 6, and wake-up time shifts SD1, SD2 and wake-up durations TD1 and TD2 corresponding to user equipment 1 and user equipment 6.

In this embodiment, the discontinuous reception periods P1' and P2' are set to twice the status information return period C2. However, the multiples described here are only examples, and the invention is not limited thereto. In this embodiment, the user equipment 1 and the user equipment 6 are configured with the same payback period C2, the same payback time (for example, t2), and the same PUCCH resource CSI2.

To further explain, the processor inside the base station eNB can be used to determine that one of the user equipment 1 and the user equipment 6 performs data within the data transmission duration DTP (for example, including the wake-up duration TD1 and the extended period EP shown in FIG. 8B) transmission. When the status information reporting time of the user equipment performing the data transmission is within the data transmission duration DTP, the user equipment performing the data transmission executes the channel status information reporting, and the user equipment other than the user equipment performing the data transmission does not execute the channel status information. Return. The data transmission duration DTP is related to the wake-up duration TD1. The wake-up durations TD1 and TD2 can be used to determine the wake-up periods DUP1 and DUP2 of the user equipments 1 and 6, and the wake-up periods DUP1 and DUP2 are staggered (that is, do not overlap) with the state information reporting time (eg t2).

Based on the actual operation waveform diagram of FIG. 7B, assuming that the base station eNB determines that the first user equipment 1 performs data transmission within the data transmission duration DTP, and the status information reporting time t2 is within the data transmission duration DTP, the user equipment 1 Physical uplink control channel resources are used to perform channel status information reporting CSI1. In this case, the second user equipment 6 does not perform channel status information reporting. The state information report time t2 is determined by the report period C2 and the report time shift SC, and the data transmission duration DTP is associated with the discontinuous reception period P1', the wake-up time shift SD1, and the wake-up duration TD1. In an actual operation example, as shown in FIGS. 7A and 7B, the base station eNB is used to extend the wake-up duration TD1 by a period EP to generate the data transmission duration DTP. That is to say, when the user equipment 1 performs data transmission during the wake-up duration TD1, since the wake-up duration TD1 is insufficient, the base station eNB may extend the wake-up duration TD1 by a period EP so that the user equipment 1 can continue to transmit data until the transmission is completed.

In summary, in the method for grouping user equipment proposed by the present invention, the user equipment is primarily grouped by the base station according to the maximum delay upper limit and the minimum delay upper limit first, and then corresponding to the channel requirements of the user equipment. Remove some user equipment from the type group of. Then, the user equipments in these types of groups with the same group delay upper limit are selected to form a target group. Finally, determine the sum of the normalized channel demand values of the target group to decide whether to further divide the target group. In this way, multiple user equipments can be properly grouped into different groups, so that the base station can individually adjust the parameters of these user equipments in a single group, so as to improve the channel resource utilization efficiency of the user equipments in a single group .

Although the present invention is disclosed as the foregoing embodiments, it is not intended to limit the present invention. Without departing from the spirit and scope of the present invention, all modifications and retouching are within the scope of patent protection of the present invention. For the protection scope defined by the present invention, please refer to the attached patent application scope.

eNB: base station

1~8: user equipment

Gm1~Gm3: initial first type group

Gl1~Gl3: Initial second type group

Gm1’~Gm3’: Type 1 group

Gl1’~Gl3’: second type group

Gk1, Gk2: target group

DRX1, DRX2: discontinuous reception parameters

TD1, TD2: Wake up duration

P1, P1’, P2, P2’: discontinuous reception cycle

SD1, SD2: Wake time displacement

t1, t2: status information return time

DUP1, DUP2: during wake-up

ON: active state

OFF: Inactive

DTP: During data transmission

EP: period

C1, C2: return cycle

SC: report time shift

CSI1, CSI2: physical uplink control channel resources

FIG. 1 is a block diagram of a long-range evolution network architecture according to an embodiment of the invention. FIG. 2 is a method flowchart of a method for grouping user equipment according to an embodiment of the invention. FIG. 3 is a detailed method flowchart of a method for grouping user equipment according to another embodiment of the invention. 4 is a schematic diagram of preliminary grouping according to an embodiment of the invention. FIG. 5 is a schematic diagram of grouping according to an embodiment of the invention. 6 is a schematic diagram of target grouping according to an embodiment of the invention. 7A is a waveform diagram of a preliminary setting of a user equipment according to an embodiment of the invention. FIG. 7B is an actual operation waveform diagram of the user equipment according to an embodiment of the invention. FIG. 8A is a preliminary set waveform diagram of a user equipment according to another embodiment of the invention. FIG. 8B is an actual operation waveform diagram of the user equipment according to another embodiment of the invention.

Claims (13)

A user equipment grouping method is suitable for multiple user equipments connected to a base station. The grouping method includes: configuring one or more codes for each user equipment with the base station, wherein each of the codes corresponds to an upper delay limit; The base station performs a grouping task according to the delay upper limits and a channel demand judgment result corresponding to each of the user equipments, thereby forming one or more first type groups after grouping and one or more groupings after grouping A second type group, wherein each of the first type groups after grouping corresponds to a first group delay upper limit and each of the second type groups after grouping corresponds to a second group delay upper limit; and The base station selects the user equipment in the first group after grouping and the second group after grouping according to the first group delay upper limit and the second group delay upper limit to form One or more target groups. The grouping method according to claim 1, further comprising: using the base station to determine whether at least one of the target groups is based on the sum of the normalized channel requirements of the user equipment in each target group Make a split. The grouping method according to claim 2, wherein the base station determines whether to divide at least one of the target groups according to the sum of the values of the normalized channel requirements of the user equipment in each target group The method includes: the base station determining whether the target channel has any sum of the normalized channel demand values greater than 1 in any of the target groups; and If the total value of the normalized channel requirements of the user equipment in any of the target groups is greater than 1, the base station divides the target group. The grouping method according to claim 3, wherein dividing the target group by the base station includes: selecting, by the base station, user equipment having the maximum normalized channel demand value in the target group to form the target groups Another target group. The grouping method according to claim 1, wherein the base station configures the one or more codes of each user equipment according to service types of the user equipments. The grouping method according to claim 1, wherein the base station performs the grouping task according to the delay upper limit and the channel demand judgment result corresponding to each of the user equipments, thereby forming the one or more The one type group and the one or more second type groups after grouping include: the base station divides the user equipment into one or more initial first type groups and one or more according to the delay upper limits An initial second type group; the base station determines whether each of the user equipment in each initial second type group has a channel requirement to selectively select at least one user in the initial second type group The device is removed from the initial second type group to form the grouped one or more second type groups; and the base station determines each of the user equipment in each initial first type group Whether there is a channel requirement to selectively remove at least one user equipment in the initial first type group from the initial first type group to form the grouped one or more first type groups . The grouping method according to claim 6, wherein the base station divides the user equipment into the one or more initial first type groups and the one or more initial second type groups according to the delay upper limits The method includes: selecting the user equipment with the same minimum delay upper limit from the user equipments by the base station to form the one or more initial first type groups; and selecting the same maximum from the user equipments by the base station The upper-limit user equipment is delayed to form the one or more initial second type groups. The grouping method according to claim 6, wherein the base station determines whether each of the user equipments in each of the initial second type groups has a channel requirement, so as to selectively select the The removal of at least one user equipment from the initial second type group includes: when the base station determines that at least one of the user equipments in one of the initial second type groups has a channel requirement, the base station controls the user The device is removed from the initial second type group. The grouping method according to claim 6, wherein the base station determines whether each of the user equipment in each of the initial first type groups has a channel requirement, so as to selectively select the The removal of at least one user equipment from the initial first type group includes: when the base station determines that at least one of the user equipments in one of the initial first type groups does not have a channel requirement, the base station controls the user The device is removed from the initial first type group. The grouping method according to claim 1, wherein the base station forming the one or more target groups according to the first group delay upper limit and the second group delay upper limit includes: When the base station determines that one of the first group delay upper limits is equal to one of the second group delay upper limits, it selects the users in the first type group after grouping corresponding to the first group delay upper limit The device and the user equipment in the second type group after the grouping corresponding to the second group delay upper limit form the target group. The grouping method according to claim 1, wherein the base station performs the grouping task according to the delay upper limit and the channel demand judgment result corresponding to each of the user equipments, thereby forming the one or more The one-type group and the one or more second-type groups after grouping include: determining whether each of the user equipments has a channel requirement by the base station; dividing the user equipments by the base station according to the delay upper limits One or more initial first-type groups and one or more initial second-type groups; the base station removes user equipment in the initial first-type group that does not have channel requirements from the initial first-type group Removed in order to form the one or more first-type groups after grouping; and the base station moves the user equipment with channel requirements in the initial second-type group from the initial second-type group Divide to form the one or more second-type groups after grouping. The grouping method according to claim 1, further comprising: sending, by the base station, a radio resource control (RRC) configuration message to the user equipments in one of the target groups, the RRC configuration message including a periodicity Channel status information reporting parameter and a discontinuous reception parameter, wherein the periodic channel status information reporting parameter Contains information about a reporting period, a reporting time shift, and a physical uplink control channel (PUCCH) resource; when the base station predicts multiple of the user equipment in the target group based on the operating status of the user equipment When the conflicting user equipment will execute the channel status information report at the same time, the base station determines that one of the multiple conflicting user equipment will execute the channel status information report, and sends a sleep command to other than the conflicting user equipment that can execute the channel status information report Conflicting user equipment; wherein, the RRC configuration message sent to the user equipments in the target group includes the same report period, the same report time shift, and the same PUCCH resource information. The grouping method according to claim 1, further comprising: executing a scheduling algorithm with the base station to obtain a reward period, a reward time shift, and corresponding to the user equipments in one of the target groups A discontinuous reception period of each of the user equipments, a wake-up time displacement corresponding to each of the user equipments, and a wake-up duration corresponding to each of the user equipments, so that each of the user equipments wakes up The period does not overlap with a channel reporting time; and the base station transmits a radio resource control (RRC) configuration message to the user equipments separately, and the RRC configuration message includes the reporting period, the reporting time shift, and an uplink control Channel (PUCCH) resource information, and the discontinuous reception period corresponding to the user equipment receiving the RRC configuration message, the wake-up time shift corresponding to the user equipment receiving the RRC configuration message, and corresponding to receiving the RRC configuration message The wake-up duration of the user equipment; The RRC configuration messages sent to the user equipments have the same report period, the same channel report time, and the same PUCCH resource information.

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