CN111385903B - Grouping method of user equipment - Google Patents

Abstract

A method for grouping user equipment, including configuring one or more codes of each user equipment with a base station, wherein each code corresponds to a delay upper limit. The base station performs a grouping task according to the delay upper limit and the channel requirement judgment result corresponding to each user equipment, thereby forming one or more first-type groups and one or more second-type groups, each of which The 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 selects the user equipments in the first type groups and the second type groups according to the first group delay upper bounds and the second group delay upper bounds to form one or more target groups .

Description

Grouping method of user equipment

technical field

The invention relates to a method for grouping user equipment.

Background technique

In the field of Long Term Evolution (LTE) networks, in order to improve spectrum utilization efficiency and provide better service quality for UEs, the network often requires UEs to measure wireless channels and report back. The base station can adjust the relevant parameters of the user end equipment, so that the utilization efficiency of channel resources can be improved.

Generally speaking, a base station is connected to multiple UEs, and the parameter characteristics of these UEs, such as delay tolerance, may be different. When the number of UEs is large, the base station cannot easily adjust the parameters of these UEs due to the difference in characteristics of these parameters, so as to improve the utilization efficiency of channel resources.

Contents of the invention

The present invention proposes a method for grouping user equipment, mainly to group multiple user equipment, so that user equipment in the same group has a corresponding upper limit of delay, so that the base station can separately target user equipment in each group The parameters are adjusted.

According to an embodiment of the present invention, a user equipment grouping method is disclosed, which is suitable for multiple user equipment connected to a base station. The grouping method includes configuring one or more codes for each user equipment with the base station, wherein each code corresponds to A delay upper limit; the base station performs a grouping task according to the delay upper limit and the channel requirement judgment result corresponding to each user equipment, thereby forming one or more first-type groups and one or more second-type groups , wherein 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 uses the first group delay upper limit and the second group The group delay upper limit is selected by the user equipments in the first type group and the second type group to form one or more target groups.

To sum up, in the user equipment grouping method proposed by the present invention, the base station firstly performs preliminary grouping of the user equipment according to the maximum delay upper limit and the minimum delay upper limit, and then according to the channel demand (traffic demand) of the user equipment And remove part of the user equipment from the corresponding type group. Then, user equipments in these types of groups with the same group delay upper limit are selected to form a target group. Finally, the sum of the normalized channel requirement values of the target group is judged to determine 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 configure parameters for 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 descriptions about the present disclosure and the following descriptions of the embodiments are used to demonstrate and explain the spirit and principle of the present invention, and provide further explanations of the claims of the present invention.

Description of drawings

FIG. 1 is a schematic block diagram of a long range evolution network architecture according to an embodiment of the present invention.

FIG. 2 is a flow chart of a method for grouping user equipment according to an embodiment of the present invention.

FIG. 3 is a detailed flowchart of a method for grouping user equipment according to another embodiment of the present invention.

FIG. 4 is a schematic diagram of preliminary grouping according to an embodiment of the present invention.

FIG. 5 is a schematic diagram of grouping according to an embodiment of the present invention.

FIG. 6 is a schematic diagram of target grouping according to an embodiment of the present invention.

FIG. 7A is a waveform diagram of a preliminary setting of a user equipment according to an embodiment of the present invention.

FIG. 7B is a waveform diagram illustrating the actual operation of the user equipment according to an embodiment of the present invention.

FIG. 8A is a waveform diagram of a preliminary setting of a user equipment according to another embodiment of the present invention.

FIG. 8B is a waveform diagram illustrating the actual operation of the user equipment according to another embodiment of the present invention.

Symbol Description

eNB base station

1~8 user equipment

Gm1～Gm3 initial first type group

Gl1～Gl3 initial second type group

Gm1’～Gm3’ first type group

Gl1’～Gl3’ The second type group

Gk1, Gk2 target groups

DRX1, DRX2 discontinuous reception parameters

TD1, TD2 wake-up duration

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

SD1, SD2 wake-up time shift

t1, t2 state information reporting time

During DUP1, DUP2 wake-up

ON active state

OFF inactive

During DTP data transfer

EP period

C1, C2 return period

SC returns time shift

CSI1, CSI2 physical uplink control channel resources

Detailed ways

The detailed features and advantages of the present invention are described in detail below in the embodiments, the content of which is sufficient for any person familiar with the related art to understand the technical content of the present invention and implement it accordingly, and according to the contents disclosed in this specification, claims and accompanying drawings, The related objects and advantages of the present invention can be easily understood by anyone skilled in the related art. The following examples further illustrate the concept of the present invention in detail, but do not limit the scope of the present invention in any way.

Please refer to FIG. 1 and FIG. 2 together. FIG. 1 is a schematic block diagram of a long range evolution network architecture according to an embodiment of the present invention, and FIG. 2 is a schematic diagram of a user equipment according to an embodiment of the present invention. Method flow diagram of the clustering 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 these user equipments 1-8. In practice, the base station eNB has a radio resource control (RRC) layer and a medium access control (MAC) layer, and the base station eNB may have a scheduler set in the medium access control (MAC) layer. The radio resource control (RRC) layer of the base station eNB can be used to set periodic channel state information (Channel State Information, CSI) reporting parameters and discontinuous reception (Discontinuous Reception, DRX) parameters of these 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, wherein each code corresponds to a delay upper limit. In step S202, the base station eNB executes the grouping task according to the delay upper limit and the channel requirement judgment result corresponding to each user equipment, so as to form one or more first-type groups and one or more second-type groups Group. Wherein, 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 one 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 may be various services such as voice/image transmission, interactive games, email/community communication, file sharing, etc., which are not listed here one by one.

In step S203, the base station eNB selects 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 judges whether to target groups according to the sum of normalized channel requirement values of user equipments in each target group. At least one of them splits.

In order 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 The look-up table of an embodiment of the present invention is the delay upper limit D _p,i described in the following example, where p represents the code, and i represents the number of the user equipment (numbers 1-8 in FIG. 1 ). The flow of steps S301-304 in FIG. 3 is roughly the same as steps S201-S204 in FIG. 2, except that step S302 in FIG. 3 includes sub-steps S3021-3023, and step S304 includes sub-steps S3041-3042.

As shown in Figure 3, first in step S301, the base station eNB configures one or more codes for each user equipment 1 to 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 equipments into one or more initial first-type groups and one or more initial second-type groups according to the delay upper bounds. In one embodiment, the sub-step S3021 includes using the base station eNB to select user equipments 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 equipments with 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 illustrate with a practical example.

Table I

the code Latency cap (milliseconds) Service type 2 100 TP1 4 150 TP2 3 50 TP3 5 300 TP4 1 100 TP5 6 300 TP6 7 100 TP7 8 300 TP8 9 300 TP9

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

Please further refer to Table 2 and FIG. 4. Table 2 is a summary table of the delay upper limit 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, UEs 1 and 4 have the same minimum delay upper limit of 100 milliseconds, so the base station eNB classifies UEs 1 and 4 into an initial first-type group Gm1 . The user equipment 3 has a minimum delay upper limit of 150 milliseconds, and is separately classified by the base station eNB as another initial first-type group Gm2. However, user equipments 2, 5, 6, 7, and 8 have the same minimum delay upper limit of 50 milliseconds, so the base station eNB classifies user equipments 2, 5, 6, 7, and 8 into yet another initial first-type group Gm3. In this embodiment, the first group delay upper limit corresponding to the initial first type group Gm1 is 100 milliseconds, the first group delay upper limit corresponding to the initial first type group Gm2 is 150 milliseconds, and the initial first group delay upper limit corresponding to The first group delay upper limit corresponding to the type group Gm3 is 50 milliseconds.

On the other hand, the UEs 1, 3, 4 have the same maximum delay upper limit of 300 milliseconds, so the base station eNB classifies the UEs 1, 3, 4 into an initial second type group Gl1. 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 into another initial second type group G12. However, the user equipments 6 and 7 have the same maximum delay upper limit of 100 milliseconds, so the base station eNB classifies the user equipments 6 and 7 into yet another initial second-type group G13. In this embodiment, the second group delay upper limit corresponding to the initial second type group G11 is 300 milliseconds, the second group delay upper limit corresponding to the initial second type group G12 is 150 milliseconds, and the initial second group delay upper limit is 150 milliseconds. The second group delay upper limit corresponding to the type group G13 is 100 milliseconds.

Table II

user equipment 1 300ms, 150ms, 100ms user equipment 2 150ms, 100ms, 50ms User Equipment 3 300ms, 150ms user equipment 4 300ms, 150ms, 100ms user equipment 5 150ms, 50ms User Equipment 6 100ms, 50ms User Equipment 7 100ms, 50ms user equipment 8 150ms, 50ms

In step S3022, the base station eNB judges whether each user equipment in each initial second-type group has a channel demand (traffic demand), so as to selectively transfer at least one user equipment in this initial second-type group Remove from this initial second-type group to form one or more second-type groups. In one embodiment, the step S3022 includes when the base station eNB judges that at least one of the user equipments in one of the initial second type groups has a channel requirement, the base station eNB assigns the user equipment from the initial second type group type groups to form one or more second type groups.

In step S3023, the base station eNB judges whether each user equipment in each initial first-type group has a channel requirement, so as to selectively transfer at least one user equipment in this initial first-type group from the initial first-type group Type groups are removed to form one or more first type groups. In one embodiment, the step S204 includes that when the base station eNB judges 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 transfers the user equipment from the initial first type group Groups of one type are removed to form one or more groups of the first type.

More specifically, a UE code corresponds to a Normalized channel-usage demand. Assume that a user equipment has a normalized channel requirement R _p,i , where p represents a code, and i represents a number of the user equipment (such as numbers 1-8 in FIG. 1 ). In practice, the way to judge whether the user equipment has a channel requirement is as follows: when When , it means that the user equipment has a channel requirement. Conversely, when /> When , it means that the user equipment does not have a channel requirement.

Based on the foregoing example, it is assumed that user equipments 1, 3, 5, and 7 have channel requirements, while the remaining user equipments 2, 4, 6, and 8 do not have channel requirements. At this point, the base station eNB removes the user equipments 1 and 3 in the initial second-type group G11 from the initial second-type group G11, and removes the user equipment 5 in the initial second-type group G12 from the initial second-type group Gl1 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 this initial Removed from the initial first type group Gm3.

In the foregoing embodiments, the base station eNB first performs preliminary grouping according to the maximum delay upper limit and the minimum delay upper limit of the user equipments, and then determines whether each user equipment has a channel requirement, and removes part of the user equipments 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 some 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 ceiling grouping and channel requirement determination shown in step S302 of FIG. 3 .

Please refer to FIG. 5 further. FIG. 5 is a schematic diagram of grouping according to an embodiment of the present invention. After the eNB removes the specific user equipment according to the channel requirement, the obtained grouping state of the user equipment is shown in Fig. 5 in detail. That is, after performing the above grouping tasks, the first type of groups Gm1'˜Gm3' and the second type of groups 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 the grouping state.

Specifically, as in step S303, the base station eNB selects 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 judges that one of the first group delay upper bounds is equal to one of the second group delay upper bounds, selecting the corresponding first group delay upper bound The user equipments in the first-type group and the user equipments in the second-type group corresponding to the delay upper limit of the second group form the target group.

For more details, please refer to FIG. 6 , which is a schematic diagram of object grouping according to an embodiment of the present invention. In FIG. 5, since the second group delay upper limit corresponding to the second type group Gl2' is 150 milliseconds, and the first group delay upper limit corresponding to the first type group Gm2' is also 150 milliseconds, the base station eNB The user equipments 2 and 8 in the second type group G12' and the user equipments 3 in the first type group Gm2' can be selected to form a target group Gk1, as shown in FIG. 6 . 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 can The user equipment 6 in the second type group G13' and the user equipment 1 in the first type group Gm1' are selected to form a target group Gk2, as shown in FIG. 6 .

Next, in the sub-step S3041 of step S304, the base station eNB judges whether the sum of the normalized channel requirement values of the user equipment in any of the target groups is greater than 1, and in sub-step S3042 wherein, if the sum of the normalized channel requirement values of the user equipments in any target group of the target groups is greater than 1, the target group is divided by the base station eNB.

Taking the target group Gk1 of the embodiment in FIG. 6 as an illustration, assume that the normalized channel requirement R2 of user equipment 2 is _0.2 , the normalized channel requirement _R3 of user equipment 3 is 0.3, and the normalized channel requirement R3 of user equipment 8 _{is 8} is 0.7. In this case, the base station eNB judges that the sum of the normalized channel requirement values of the user equipments 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 requirement can be given, for example, by obtained by calculation.

In one embodiment, the base station eNB segmenting the target group includes selecting, by the base station eNB, UEs with the maximum normalized channel requirement value in the target group to form another target group other than these target groups . In the foregoing example, since the user equipment 8 has the largest normalized channel requirement value, the base station eNB removes the user equipment 8 from the target group Gk1 to form another target group Gk3 ( not shown in the figure). The foregoing method of dividing the target group is only for illustration, and the present invention is not limited thereto. In practice, after sub-step S3042 is executed, go back to sub-step S3041 to judge again until the sum of the normalized channel requirement values of all 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 requirement values of all user equipments in each target group is less than or equal to 1, the grouping method ends.

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

In one embodiment, the grouping method proposed by the present invention further includes: using the base station eNB to send radio resource control (RRC) configuration information to the user equipments in one of the target groups respectively, the RRC configuration information includes periodicity Periodic channel state information reporting parameters and discontinuous reception parameters, wherein the periodic channel state information reporting parameters include information on reporting period, reporting time offset and physical uplink control channel (PUCCH) resources; when the base station eNB bases the user equipment on the When the operating state predicts that multiple conflicting user equipments among the user equipments in the target group will perform channel state information reporting, the base station eNB determines that one of the multiple conflicting user equipments will perform channel state information reporting, and sends a dormant Instructions are sent to other conflicting user equipments other than the conflicting user equipment capable of reporting channel state information. Wherein, the RRC configuration information sent to the user equipments in the target group includes the same reporting period, the same reporting time offset and the same PUCCH resource information. The dormancy command may be a discontinuous reception command media access control layer control element (DRX Command MAC CONTROL ELEMENT, DRX CE), but it is not limited thereto.

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

The wake-up duration and sleep time are repeated in a periodic manner and interleaved to form a power-saving mechanism of Discontinuous Reception. In this embodiment, user equipment 1 and user equipment 6 are configured with the same reporting period (such as C1 shown in FIG. 7A ), reporting time offset (such as SC shown in FIG. 7A ) and PUCCH resources (such as shown in FIG. 7A CSI1). After completing the configuration of the aforementioned 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 operation status of the user equipment 1 and the user equipment 6 Channel state information reporting will be performed at the same time. At this time, the base station eNB judges that the user equipment 1 and the user equipment 6 are conflicting user equipments.

In more detail, as shown in the actual operation waveform diagram of FIG. 7B , since both UE 1 and UE 6 are in the active state ON at the state information reporting time t1, the base station eNB judges that UE 1 and UE 6 will have Channel state information reporting conflicts, so the base station eNB can decide to report channel state information to one of the two user equipments according to the data transmission status of user equipment 1 and user equipment 6, while the other user equipment receives the dormancy information from the base station eNB command while entering the inactive state OFF. The dormancy command may be a discontinuous reception command media access control layer control element (DRX Command MAC CONTROL ELEMENT, DRX CE), but it is not limited thereto.

Taking the embodiment of FIG. 7B as an example, assuming that user equipment 1 will perform data transmission, but user equipment 6 will not perform data transmission, the base station eNB decides that user equipment 1 will perform channel state information reporting, and on the other hand, send dormant Instructions are given to the user equipment 6 to force it into a sleep state (ie inactive state OFF). With the above method, the conflict of channel state information reporting between the user equipment 1 and the user equipment 6 can be avoided, so as to achieve PUCCH resource sharing between different user equipments in the same target group. The dormancy command may be a discontinuous reception command media access control layer control element (DRX Command MAC CONTROL ELEMENT, DRX CE), but it is not limited thereto.

The aforementioned embodiments in FIG. 7A and FIG. 7B mainly use the dormancy command issued by the base station eNB to force the user equipment that is not performing data transmission to enter the dormant state, so as to dynamically allocate physical uplink control channel resources to the user equipment for periodic channel The status information is reported, so as to improve the utilization efficiency of the physical uplink control channel resources and further reduce the overall demand for the physical uplink control channel resources. In another embodiment, the above object can be achieved by configuring the discontinuous reception cycle and the status information reporting cycle with a specific cycle length relationship, which will be described in detail below. The dormancy instruction may be a discontinuous reception command media access control layer control element (DRX CommandMAC CONTROL ELEMENT, DRX CE), but it is not limited thereto.

In one embodiment, the grouping method proposed by the present invention further includes: using the base station eNB to execute a scheduling algorithm to obtain the reporting period, the reporting time offset, and the user equipment corresponding to one of the target groups The discontinuous reception cycle of each user equipment, 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 information to the user equipments respectively, and the RRC configuration information includes reporting period, reporting time shift, uplink control channel (PUCCH) resource information, and corresponding to receiving the RRC The discontinuous reception period of the user equipment of the configuration information, the wake-up time shift corresponding to the user equipment receiving the RRC configuration information, and the wake-up duration corresponding to the user equipment receiving the RRC configuration information. Wherein, the RRC configuration information transmitted to these user equipments has the same reporting period, the same channel reporting time and the same PUCCH resource information.

The above embodiment is also described below by taking the target group GK2 as an actual example. Please refer to FIG. 1 , FIG. 5 , FIG. 8A and FIG. 8B together, wherein FIG. 8A is a preliminary setting waveform diagram of a user equipment according to another embodiment of the present invention, and FIG. 8B is another embodiment according to the present invention. An actual operation waveform diagram of the user equipment shown in an embodiment. As shown in FIG. 8A, the internal processor (not shown in the figure) of the base station eNB first executes the scheduling algorithm to obtain the state information reporting cycle C2, the reporting time offset SC, and the discontinuous reception corresponding to the user equipment 1 and the user equipment 6. Periods P1' and P2', wake-up time shifts SD1, SD2, and wake-up durations TD1 and TD2.

After obtaining the above parameters, the processor inside the base station eNB further sends RRC configuration information to user equipment 1 and user equipment 6 respectively, where the RRC configuration information includes status information reporting cycle C2, reporting time offset SC and PUCCH resources (for example, CSI2 shown in FIG. 8A ). The RRC configuration information also includes discontinuous reception periods P1' and P2' corresponding to UE 1 and UE 6, and wake-up time offsets SD1, SD2 and wake-up duration TD1, TD2 corresponding to UE 1 and UE 6.

In this embodiment, the discontinuous receiving periods P1' and P2' are set to be twice the status information reporting period C2, but the multiples mentioned here are only for illustration, and the present invention is not limited thereto. In this embodiment, UE 1 and UE 6 are configured with the same reporting cycle C2, the same reporting time (eg t2) and the same PUCCH resource CSI2.

To further illustrate, 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 transmission 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 state information reporting time of the user equipment performing data transmission is within the data transmission duration DTP, the user equipment performing data transmission performs channel state information reporting, and user equipment other than the user equipment performing data transmission does not perform channel state information return. The data transmission duration DTP is associated with 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 (ie, do not overlap) with the status information reporting time (eg t2).

Taking the actual operation waveform diagram of FIG. 7B as an example, 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, then the user equipment 1 The channel state information reporting CSI1 will be performed using the physical uplink control channel resources. In this case, the second UE 6 does not perform channel state information reporting. The status information reporting time t2 is determined by the reporting period C2 and the reporting time offset SC, and the data transmission duration DTP is associated with the discontinuous receiving period P1', the wake-up time offset SD1 and the wake-up duration TD1. In an actual operation example, as shown in FIGS. 7A and 7B , the base station eNB is configured 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, 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 because the wake-up duration TD1 is insufficient.

In summary, in the user equipment grouping method proposed by the present invention, the base station firstly performs preliminary grouping of the user equipment according to the maximum delay upper limit and the minimum delay upper limit, and then according to the channel requirements of the user equipment from the corresponding Remove some user devices from the type group. Then, user equipments in these types of groups with the same group delay upper limit are selected to form a target group. Finally, the sum of the normalized channel requirement values of the target group is judged to determine 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 configure parameters for these user equipments in a single group, so as to improve the channel resource utilization efficiency of the user equipments in a single group .

Claims (13)

1. A method for grouping user equipment, suitable for multiple user equipment connected to a base station, the grouping method comprising: configuring one or more codes of each of the user equipments with the base station, wherein each of the codes corresponds to a delay upper limit; performing a grouping task by the base station according to the delay upper limit and the channel requirement judgment result corresponding to each of the user equipments, thereby forming one or more first-type groups and one or more second-type groups, wherein each of the first-type groups corresponds to a first group delay cap and each of the second-type groups corresponds to a second group delay cap; and The base station selects 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 one or more target group. 2. The grouping method according to claim 1, further comprising: The base station judges whether to divide at least one of the target groups according to the sum of the normalized channel requirement values of the user equipments in each target group. 3. The grouping method according to claim 2, wherein the base station judges whether at least one of the target groups is based on the sum of the normalized channel requirement values of the user equipments in each of the target groups. A split includes: Using the base station to determine whether the sum of the normalized channel requirement values of the user equipments in any target group in the target group is greater than 1; and If the sum of the normalized channel requirement values of the user equipments in any target group in the target group is greater than 1, the target group is divided by the base station. 4. The grouping method according to claim 3, wherein dividing the target group with the base station comprises: The base station selects the user equipment with the largest normalized channel requirement value in the target group to form another target group other than the target group. 5. The grouping method according to claim 1, wherein the base station configures the one or more codes of each of the UEs according to service types of the UEs. 6. The grouping method according to claim 1, wherein the base station executes the grouping task according to the delay upper limit and the channel requirement judgment result corresponding to each of the user equipments, so as to form the one The or more groups of the first type and the one or more groups of the second type comprise: dividing the user equipment into one or more initial first-type groups and one or more initial second-type groups by the base station according to the delay upper limit; judging by the base station whether each of the user equipments in each of the initial second-type groups has a channel requirement, so as to selectively transfer at least one user equipment in the initial second-type group from the removing from the initial group of the second type to form the one or more groups of the second type; and Using the base station to determine whether each user equipment in each of the initial first-type groups has a channel requirement, so as to selectively transfer at least one user equipment in the initial first-type group from the The initial first-type groups are removed to form the one or more first-type groups. 7. 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 The second type of group includes: selecting, by the base station, user equipments having the same minimum delay upper bound from among the user equipments to form the one or more initial first type groups; and The base station selects user equipments with the same maximum delay upper limit from among the user equipments to form the one or more initial second-type groups. 8. The grouping method according to claim 6, wherein the base station judges whether each of the user equipments in each of the initial second-type groups has a channel requirement, so as to selectively group the initial second-type group Removing at least one user equipment in the second-type group 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 removes the user equipment from the initial second-type groups. 9. The grouping method according to claim 6, wherein the base station judges whether each of the user equipments in each of the initial first-type groups has a channel requirement, so as to selectively group the initial first-type group Removing at least one user equipment in a group of a type from said initial group of a first type includes: When the base station judges that at least one of the user equipments in one of the initial first-type groups has no channel requirement, the base station removes the user equipment from the initial first-type groups. 10. The grouping method according to claim 1, wherein forming the one or more target groups by the base station according to the first group delay upper limit and the second group delay upper limit comprises: When the base station judges that one of the first group delay upper limit is equal to one of the second group delay upper limit, select users in the first type group corresponding to the first group delay upper limit The device and user equipments in the second type group corresponding to the second group delay upper limit to form the target group. 11. The grouping method according to claim 1, wherein the base station executes the grouping task according to the delay upper limit and the channel requirement judgment result corresponding to each of the user equipments, so as to form the one The or more groups of the first type and the one or more groups of the second type comprise: Using the base station to determine whether each of the user equipments has a channel requirement; dividing the user equipment into one or more initial first-type groups and one or more initial second-type groups by the base station according to the delay upper limit; removing, by the base station, user equipments in the initial first type group that do not have channel requirements from the initial first type group to form the one or more first type groups; and The base station removes user equipments in the initial second type group that have channel requirements from the initial second type group, so as to form the one or more second type groups. 12. The grouping method according to claim 1, further comprising: The base station sends radio resource control configuration information to user equipments in one of the target groups, the radio resource control configuration information includes periodic channel state information reporting parameters and discontinuous reception parameters, wherein the periodic The channel state information reporting parameters include reporting period, reporting time displacement and information on physical uplink control channel resources; When the base station predicts according to the operating state of the user equipment that multiple conflicting user equipments in the target group will perform channel state information reporting at the same time, the base station determines the multiple conflicting user equipments One of the devices will perform channel state information reporting, and send a sleep instruction to other conflicting user equipments other than the conflicting user equipment that can perform channel state information reporting; Wherein, the radio resource control configuration information sent to the user equipment in the target group includes the same reporting period, the same reporting time offset and the same physical uplink control channel resource Information. 13. The grouping method according to claim 1, further comprising: Executing a scheduling algorithm with the base station to obtain a reporting period, a reporting time offset, and a discontinuous reception period corresponding to each of the user equipments in one of the target groups, corresponding to each a wake-up time shift of the user equipment, and a wake-up duration corresponding to each of the user equipment, so that the wake-up period of each of the user equipment does not overlap with the channel return time; and The base station transmits radio resource control configuration information to the user equipment respectively, and the radio resource control configuration information includes the reporting period, the reporting time offset, and uplink control channel resource information, and corresponds to receiving The discontinuous reception period of the user equipment of the radio resource control configuration information, the wake-up time shift corresponding to the user equipment receiving the radio resource control configuration information and the radio resource control configuring the wake-up duration of the user equipment; Wherein, the radio resource control configuration information sent to the user equipment has the same reporting period, the same channel reporting time, and the same uplink control channel resource information.