CN109729592B - Base station and resource allocation method thereof - Google Patents
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- CN109729592B CN109729592B CN201910042923.6A CN201910042923A CN109729592B CN 109729592 B CN109729592 B CN 109729592B CN 201910042923 A CN201910042923 A CN 201910042923A CN 109729592 B CN109729592 B CN 109729592B
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Abstract
The invention provides a base station and a resource allocation method thereof. The resource allocation method includes the following steps. And receiving an uplink transmission resource request. The uplink transmission resource request is used for requesting uplink transmission resources, and the uplink transmission resources are related to radio resources used for uplink transmission. And in response to receiving the uplink transmission resource request, allocating uplink transmission resources according to the uplink transmission record corresponding to the user equipment which makes the uplink transmission resource request. The uplink transmission record is related to the situation of using the uplink transmission resource in the past. An uplink transmission resource indication is sent, and the uplink transmission resource indication is associated with the allocated uplink transmission resource. Therefore, the uplink time delay can be reduced, and the user Internet surfing experience is improved.
Description
Technical Field
The present invention relates to radio resource management, and more particularly, to a base station and a resource allocation method thereof.
Background
In a long term evolution (Long Term Evolution, LTE) system, if a User Equipment (UE) has no uplink data to transmit, a base station does not need to allocate uplink resources for the UE, otherwise, resources are wasted. Therefore, the ue needs to inform the base station whether there is uplink data to be transmitted or not, so that the base station decides whether to allocate uplink resources to the ue. To this end, long term evolution technology provides a mechanism for uplink scheduling requests (Scheduling Request, SR). Fig. 1 is a signaling diagram of an existing uplink scheduling request mechanism. The user equipment informs the base station of the need for uplink resources for uplink shared channel (Uplink Shared Channel, UL-SCH) transmission through the uplink scheduling request. However, the ue does not notify the uplink scheduling request of the size of the uplink data to be transmitted by the base station, and needs to report the uplink data through a buffer status report (Buffer Status Report, BSR). After receiving the uplink scheduling request, the base station will generally allocate enough resources for the ue to send the buffer status report. Next, the ue may insert a buffer status report control Unit in a Packet Data Unit (PDU) of a medium access control (Media Access Control, MAC) layer to notify the base station: for its particular logical channel group or groups, there is currently how much data to send and it is desirable for the base station to be able to allocate some Resource Blocks (RBs) to itself. The base station can allocate resource blocks according to the resource quantity requested by the buffer status report and the resource condition of the base station. It can be seen from the above description that when the ue needs to send new data, the ue needs to send the data to the base station after four steps (four signaling transfer), which is a problem of time delay.
Disclosure of Invention
In view of this, the present invention is directed to a base station and a resource allocation method thereof, which actively and properly allocate resources for the ue to use before the ue informs the ue of the amount of data to be transmitted, so as to reduce signaling handover and thus reduce delay.
According to an embodiment of the present invention, a resource allocation method is applied to a base station, and includes the following steps. And receiving an uplink transmission resource request. The uplink transmission resource request is used for requesting uplink transmission resources, and the uplink transmission resources are related to radio resources used for uplink transmission. And in response to receiving the uplink transmission resource request, allocating uplink transmission resources according to the uplink transmission record corresponding to the user equipment which makes the uplink transmission resource request. The uplink transmission record is related to the situation of using the uplink transmission resource in the past. An uplink transmission resource indication is sent, and the uplink transmission resource indication is associated with the allocated uplink transmission resource.
According to an embodiment of the present invention, a base station includes at least, but is not limited to, a receiving circuit, a transmitting circuit, and a processing circuit. The receiving circuit receives a signal. The transmission circuit transmits a signal. The processing circuit is coupled to the receiving circuit and the transmitting circuit and configured to perform the following steps. And receiving an uplink transmission resource request. The uplink transmission resource request is used for requesting uplink transmission resources, and the uplink transmission resources are related to radio resources used for uplink transmission. And in response to receiving the uplink transmission resource request, allocating uplink transmission resources according to the uplink transmission record corresponding to the user equipment which makes the uplink transmission resource request. The uplink transmission record is related to the situation of using the uplink transmission resource in the past. An uplink transmission resource indication is sent, and the uplink transmission resource indication is associated with the allocated uplink transmission resource.
Based on the above, the base station and the resource allocation method thereof according to the embodiments of the present invention count uplink transmission records of the ue, estimate data transmission amount or transmission rate of the ue based on the uplink transmission records after receiving the uplink transmission resource request from the ue, and allocate radio resources accordingly for subsequent uplink data use by the ue. Therefore, the user equipment can directly send part or all of uplink data, and can reduce signaling transfer, thereby reducing uplink time delay.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.
Fig. 1 is a signaling diagram of a conventional uplink scheduling request mechanism;
FIG. 2 is a schematic diagram of a communication system according to an embodiment of the invention;
FIG. 3 is a block diagram of a base station according to an embodiment of the present invention;
FIG. 4 is a flow chart of a method for allocating resources according to an embodiment of the present invention;
fig. 5 is a signaling diagram of a resource allocation method according to an embodiment of the present invention.
Description of the reference numerals
1: a communication system;
BS: a base station;
UE: a user equipment;
310: an antenna;
320: a receiving circuit;
330: a transmission circuit;
340: an analog/digital-digital/analog converter;
350: a memory;
360: a processing circuit;
S410-S450: and (3) step (c).
Detailed Description
Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings and the description to refer to the same or like parts.
Fig. 2 is a schematic diagram of a communication system 1 according to an embodiment of the invention. The communication system 1 comprises at least, but not limited to, a base station BS, one or more user equipments UE.
The base stations BS are, for example but not limited to, home evolved node BS (Home Evolved Node B, heNB), enbs, next generation node BS (gNB), advanced base stations (Advanced Base Station, ABS), base transceiver systems (Base Transceiver System, BTS), repeaters (relays), repeaters, and/or satellite-based communication base stations.
Fig. 3 is a block diagram of elements of the base station BS according to an embodiment of the present invention. The base station BS may include, but is not limited to, at least one or more antennas 310, receive circuitry 320, transmit circuitry 330, analog/digital (a/D) digital/analog (D/a) converters 340, memory 350, and processing circuitry 360.
The receiving circuit 320 and the transmitting circuit 330 are configured to wirelessly receive an uplink (uplink) signal and transmit a downlink (downlink) signal via the antenna 310, respectively. The receive circuit 320 and the transmit circuit 330 may also perform analog signal processing operations such as low noise amplification, impedance matching, mixing, up-or down-conversion, filtering, amplification, and the like. The analog/digital-to-digital/analog converter 340 is configured to perform analog-to-digital conversion for the uplink and digital-to-analog conversion for the downlink.
The Memory 350 is, for example, but not limited to, a random access Memory (Random Access Memory, RAM), a Read-Only Memory (ROM), a Flash Memory (Flash Memory), or the like, or a combination thereof. Memory 350 records program codes, device configurations, codebooks (codebooks), buffered or persistent data, and records other various protocol related software modules such as a radio resource control (Radio Resource Control, RRC) layer, a medium access control (Media Access Control, MAC) layer, a physical layer, and the like.
The processing circuit 360 is configured to process digital signals and execute programs according to exemplary embodiments of the present invention, and may access or load data and software modules recorded by the memory 350. The processing circuit 360 may be implemented by a programmable unit such as a central processing unit (Central Processing Unit, CPU), microprocessor, microcontroller, digital signal processing (Digital Signal Processing, DSP) chip, field programmable logic gate array (Field Programmable Gate Array, FPGA), or the like. The processing circuit 360 may also be implemented in a stand-alone electronic device or integrated circuit (Integrated Circuit, IC), and the operation of the processing circuit 360 may also be implemented in software.
The user equipment UE may include, for example, but not limited to, mobile stations, advanced mobile stations (Advanced Mobile Station, AMS), telephony devices, customer premise equipment (Customer Premise Equipment, CPE), wireless sensors, etc.
Fig. 4 is a flowchart of a resource allocation method according to an embodiment of the present invention. The processing circuit 360 of the base station BS receives the uplink transmission resource request from the user equipment UE through the receiving circuit 320 (step S410). Specifically, when a UE in a radio resource control-CONNECTED (rrc_connected) state (i.e., an accessed (camp on) base station BS) has a need for uplink transmission (i.e., data to be transmitted), the UE will send an uplink transmission resource request, such as an uplink scheduling request (Scheduling Request, SR) of the 3GPP specification or other request for requiring radio resources used for uplink transmission to transmit data, to the base station BS.
In response to receiving the uplink transmission resource request, the processing circuit 360 allocates uplink transmission resources according to the uplink transmission record corresponding to the UE making the uplink transmission resource request (step S430). In actual operation, most of uplink data that the UE needs to send is in packets (packets), and one packet is often smaller than 1.5 kbytes. Thus, if the user equipment UE can be provided with a resource amount exceeding 1.5 kbytes, the user equipment UE can timely transmit the first packet. The BS in this embodiment predicts the data amount to be sent of the UE and allocates radio resources according to the data amount to be sent of the UE before receiving a notification (e.g. a buffer status report (Buffer Status Report, BSR) of the 3GPP specification, or other similar information) related to the data amount to be sent after receiving the uplink transmission resource request sent by the UE, so that the UE can transmit at least the first data packet.
In order to predict the amount of data to be transmitted, in one embodiment, the processing circuit 360 counts the uplink transmission records of the served UE, such as the uplink transmission rate and/or the scheduled times (or scheduled probabilities) in unit time, through a timer. For example, the timer is set to 100 milliseconds (ms), and the processing circuit 360 may count the amount of data received and the number of scheduled times before the timer expires for each UE to obtain the uplink transmission rate and the number of scheduled times per unit time. That is, the uplink record corresponding to the UE that made the uplink transmission resource request is related to the situation that the UE has used the uplink transmission resource, and the uplink record is the uplink transmission rate and/or the scheduled number of times in the unit time of the UE that the BS received the uplink transmission resource request in step S410.
In another embodiment, the uplink record is, for example, the byte size of each schedule in the timer. For example, the timer is set to 300 ms, and the processing circuit 360 may count, for each user equipment UE, the highest value, the lowest value, or the average value in each scheduled data amount before the timer expires, as the byte size of each schedule, respectively.
The processing circuit 360 may be configured to count uplink records of each UE periodically or non-periodically. Then, when receiving the uplink transmission resource request, the processing circuit 360 determines the resource amount of the uplink transmission resource and/or the transmission rate (i.e. the allocated uplink transmission resource) using the uplink transmission resource according to the uplink transmission record corresponding to the UE.
Notably, there are a number of mechanisms for allocating uplink transmission resources. Considering the balance of resources and transmission delay, the embodiments of the present invention classify the UE based on the uplink transmission records of the UE.
In an embodiment, the UE has an uplink transmission rate lower than a minimum threshold (e.g., 1K, 500, 1.5K bytes per second (bps), etc.), or the UE is a completely new access UE, which may be labeled as type I, and whose typical traffic is PING packet traffic, and the processing circuit 360 allocates uplink transmission resources according to the length of internet protocol (Internet Protocol, IP) based control information (e.g., PING packets, SYN packets, or other frequently transmitted information) or the minimum transmission rate (e.g., 1K, 500, 1.5K bps, etc.). For example, the minimum transmission rate is 1.5kbps (representing that 1.5×1024/8=192 bytes of data need to be scheduled per second), and the number of scheduled times per unit time is 0.2 (representing that 0.2×1000/100=2 scheduled times per second). If the number of bytes allocated per allocation is 192/2=96 bytes. For a newly accessed UE, it is assumed that a minimum of 64 bytes are allocated (the length of the 64 bytes can basically satisfy a normal PING packet (typically, the length of a PING packet is 32+8+20=60 bytes), and a SYN packet (typically, the length of the next SYN packet is 12+20+20=52 bytes) that also satisfies a transmission control protocol (Transmission Control Protocol, TCP) can be sent as soon as possible. Note that the lengths referred to herein are all lengths of IP information, and when the processing circuit 360 calculates the length of the data amount to be assigned to the UE, some lengths may be added to store the information header of the radio link control (Radio Link Control, RLC), packet data convergence protocol (Packet Data Convergence Protocol, PDCP) and MAC layer.
After determining the information length, if the UE is not the last UE to which no uplink transmission resource is allocated, the processing circuit 360 determines the resource amount (e.g. the number or proportion of fast resources) of the uplink transmission resource according to the channel quality (e.g. channel quality indication (Channel Quality Indicator, CQI), precoding matrix indication (Precoding Matrix Indicator, PMI), or other information indicating channel conditions) and the upper limit of the data amount (e.g. 50%, 30%, 45% of the current idle resources). For example, if the number of the channel quality indicator reported by a UE is 15 (which represents that the channel quality is the best), the processing circuit 360 allocates more resources among the remaining resource blocks to the UE. On the other hand, if the UE is the last UE to which uplink resources are not allocated, the processing circuit 360 allocates all or part of the remaining resources to the UE.
In another embodiment, UE whose uplink transmission rate is between a lowest threshold (e.g., 1K, 500K, 1.5kbps, etc.) and a second lower threshold (e.g., 1M, 500K, 1.5 mbps, etc.), above which the number of scheduled times per unit time is higher than a scheduling probability threshold (e.g., 0.15, 0.2, or 0.25, etc.), may be labeled as type II, whose typical traffic is downlink TCP, and the processing circuit 360 determines the transmission rate using the uplink transmission resource according to the traffic transmission rate based on a Transmission Control Protocol (TCP). For example, if the uplink transmission rate of a UE is 1 mbps (between the minimum threshold of 1.5kbps and the second low threshold of 1.5 mbps) and the number of scheduled times per unit time is 0.4 (higher than the scheduling probability threshold of 0.2), the processing circuit 360 directly allocates the UE to the uplink transmission rate of 1 mbps as the transmission rate of the subsequent uplink data using the uplink transmission resource, and determines the resource amount accordingly.
In an embodiment, the UE whose uplink transmission rate is between the lowest threshold and the second lowest threshold and whose number of scheduled times in a unit time is lower than the scheduling probability threshold may be denoted as type III, where a typical service is an uplink low-speed service, and the processing circuit 360 equally allocates the resource amount of the uplink transmission resource. For example, if the uplink transmission rate of a UE is 1.2 mbps (between the minimum threshold of 1.k bps and the second low threshold of 1.5 mbps) and the number of scheduled times per unit time is 0.1 (below the scheduling probability threshold of 0.25), the processing circuit 360 divides all the remaining resource amounts by the total number of UEs in the unit time (e.g. transmission time interval (Transmission Time Interval, TTI)) as the allocated resource amounts, i.e. the resource averages.
In yet another embodiment, the UE with an uplink transmission rate higher than a highest threshold (e.g. 4, 5, or 10 mbps) (higher than the second lower threshold) may be marked as type IV, which is a high-speed user, and the processing circuit 360 allocates uplink transmission resources according to the uplink transmission rate. For the UE with the high-speed transmission record, the BS allocates more resources as much as possible. For example, if the uplink transmission rate of a UE is 5 mbps (above the highest threshold (4 mbps)), the processing circuit 360 assigns a value (e.g., 5 mbps, or 5 mbps plus a margin value, e.g., 1M, 500K, or 1.5 mbps) that is the same or higher than the uplink transmission rate as the transmission rate of the subsequent uplink transmission resource.
As for the user equipment UE other than the aforementioned four types, the processing circuit 360 is marked as type V.
In other embodiments, the user may sort the user equipment UE by selecting any two or more types from the five types and allocate resources accordingly. In addition, the above classification is merely exemplary, and the user can adjust the parameters of the classification mechanism according to the actual requirements. For example, only the user equipment UE is distinguished into ping packet traffic and non-ping packet traffic. Alternatively, the amount of resources is determined directly based on the size of the bytes scheduled in the uplink transmission record.
When the base station BS is connected with more than two UEs and some or all UEs send uplink transmission resource requests in a specific time zone, in an embodiment, the processing circuit 360 determines the priority of allocating uplink transmission resources to the UEs according to the uplink transmission rates corresponding to the UEs and/or the scheduled times in unit time. For example, first, all UEs are prioritized according to a principle similar to a short-job priority scheduling algorithm according to which as many UEs as possible (the amount of resources required by the type I users is small and as high as possible) are preferentially satisfied, and the UEs that are transmitting downlink (the type II users) are preferentially satisfied, where the priority is prioritized as type I > type II > type III > type IV > type V. After deciding the prioritization, the processing circuitry 360 allocates resources to the high priority UE first, then to the low priority UE (in other words, after allocating resources to all UEs of type I, then to UEs of type II, and so on). The UE refers to a UE that sends an uplink transmission resource request, and not a UE that normally sends a notification of data volume, such as BSR. In addition, the priority ranking of the foregoing example is based on the principle that the most user equipments use uplink transmission resources, and the processing circuit 360 may also be based on the principle that the high-speed users, the uplink low-speed service or other users are prioritized (e.g. the type IV is the highest priority), which can be freely changed according to the requirement of the user, which is not limited by the embodiments of the present invention.
After the allocation result is determined, the processing circuit 360 may send an uplink transmission resource indication (step S450) related to the allocated uplink transmission resource, such as an uplink scheduling Grant (Uplink Scheduling Grant, UL-Grant) of the 3GPP specification or other notification indicating the uplink radio resource or how to use the allocated resource, through the transmitting circuit 330. After receiving the corresponding uplink transmission resource indication, the UE may send part or all of the uplink data through the indicated resource.
Fig. 5 is a signaling diagram of a resource allocation method according to an embodiment of the present invention. Taking information of 3GPP LTE specification as an example, after receiving an uplink Scheduling Request (SR) of a User Equipment (UE), a Base Station (BS) allocates resources based on an uplink transmission record of the UE, and sends an uplink scheduling Grant (UL-Grant) to the UE accordingly. The UE may send uplink data. Compared with the prior art of fig. 1, the embodiment of the invention reduces a back-and-forth interactive signaling transmission, thereby reducing the uplink time delay. If the five classifications and type I prioritization are used, the embodiments of the present invention can significantly reduce the delay of PING when most user equipment UE uses PING.
In summary, in the base station and the resource allocation method thereof according to the embodiments of the present invention, after the base station receives the uplink transmission resource request of the ue, the base station allocates the radio resource amount appropriately based on the uplink transmission record. The resource amount not only enables the ue to send, for example, a buffer status report or other indication of the amount of data to be transmitted, but also to send part or all of the uplink data. After receiving the indication of the allocation resource amount, the ue may send the first data to be sent directly without sending the buffer status report separately, and may send the buffer status report of the data to be sent subsequently as required. The embodiment of the invention is applicable to LTE, 5G or later generation mobile communication standards. Furthermore, by prioritizing different types of user equipment, more user equipment or specific user equipment will be enabled to enjoy resources preferentially. Therefore, the uplink time delay can be reduced, and resources are not wasted.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (14)
1. A method for allocating resources, adapted to a base station, comprising:
counting uplink transmission records of served users through a timer, wherein the uplink transmission records are related to uplink transmission rate;
receiving an uplink transmission resource request, wherein the uplink transmission resource request is used for requesting uplink transmission resources, and the uplink transmission resources are related to radio resources used by uplink transmission;
in response to receiving the uplink transmission resource request, allocating the uplink transmission resource according to an uplink transmission record corresponding to the ue that made the uplink transmission resource request, where the uplink transmission record relates to a situation that the uplink transmission resource was used in the past, and allocating the uplink transmission resource according to an uplink transmission record corresponding to the ue that made the uplink transmission resource request includes:
determining at least one of a resource amount of the uplink transmission resource and a transmission rate using the uplink transmission resource according to an uplink transmission record corresponding to the user equipment; and
allocating the uplink transmission resource according to the length of the control information based on the internet protocol or the minimum transmission rate in response to the uplink transmission rate being lower than a minimum threshold value, wherein the resource amount of the uplink transmission resource is determined according to the channel quality and the upper limit of the data amount; and
and sending an uplink transmission resource indication, wherein the uplink transmission resource indication is related to the allocated uplink transmission resource.
2. The method of claim 1 wherein the uplink transmission record is further associated with a scheduled number of times per unit time.
3. The method for allocating resources according to claim 1, wherein the uplink transmission record relates to an uplink transmission rate and a scheduled number in a unit time, and the step of allocating uplink transmission resources according to the uplink transmission record corresponding to the ue that made the uplink transmission resource request comprises:
determining the transmission rate of using the uplink transmission resource according to the service transmission rate based on a transmission control protocol, wherein the uplink transmission rate is between a lowest threshold value and a second low threshold value, and the scheduled times in the unit time is higher than a scheduling probability threshold value, and the second low threshold value is higher than the lowest threshold value;
the resource quantity of the uplink transmission resource is averagely distributed in response to the uplink transmission rate being between the lowest threshold value and the second low threshold value and the scheduled times in unit time being lower than the scheduling probability threshold value; and
and allocating the uplink transmission resource according to the uplink transmission rate in response to the uplink transmission rate being higher than a highest threshold, wherein a value higher than the uplink transmission rate is assigned as the transmission rate using the uplink transmission resource, and the highest threshold is higher than the second lower threshold.
4. The method for allocating resources according to claim 2, wherein the base station is connected to a plurality of the ues, and the step of allocating uplink resources according to the uplink record corresponding to the ue that made the uplink resource request includes:
and determining a priority order for allocating the uplink transmission resources to the plurality of user equipments according to at least one of the uplink transmission rates corresponding to the plurality of user equipments and the scheduled times in the unit time.
5. The resource allocation method according to claim 4, wherein the prioritizing uses the uplink transmission resources in relation to a maximum number of user equipments.
6. The resource allocation method according to claim 1, wherein the uplink transmission resource request is an uplink scheduling request and the uplink transmission resource indication is an uplink scheduling grant.
7. The method of claim 1 wherein the uplink record corresponding to the ue that provided the uplink resource request is at least one of an uplink rate of the ue and a scheduled number of times per unit time before the base station receives the uplink resource request.
8. A base station, comprising:
a receiving circuit for receiving the signal;
a transmission circuit for transmitting a signal; and
processing circuitry coupled to the receiving circuitry and the transmitting circuitry and configured to perform:
receiving, by the receiving circuit, an uplink transmission resource request, where the uplink transmission resource request is used to request an uplink transmission resource, and the uplink transmission resource is related to a radio resource used for uplink transmission;
in response to receiving the uplink transmission resource request, allocating the uplink transmission resource according to an uplink transmission record corresponding to the user equipment which has made the uplink transmission resource request, wherein the uplink transmission record is related to the situation of using the uplink transmission resource in the past;
transmitting an uplink transmission resource indication through the transmission circuit, wherein the uplink transmission resource indication is related to the allocated uplink transmission resource;
counting the uplink transmission records of the served user through a timer, wherein the uplink transmission records are related to the uplink transmission rate;
determining at least one of a resource amount of the uplink transmission resource and a transmission rate using the uplink transmission resource according to an uplink transmission record corresponding to the user equipment; and
and allocating the uplink transmission resource according to the length of the control information based on the internet protocol or the minimum transmission rate in response to the uplink transmission rate being lower than a minimum threshold value, wherein the resource amount of the uplink transmission resource is determined according to the channel quality and the upper limit of the data amount.
9. The base station of claim 8 wherein the uplink transmission record further relates to a scheduled number per unit time of uplink transmission rate.
10. The base station of claim 8, wherein the uplink transmission record relates to an uplink transmission rate and a scheduled number per unit time, and the processing circuit is configured to perform:
determining the transmission rate of using the uplink transmission resource according to the service transmission rate based on a transmission control protocol, wherein the uplink transmission rate is between a lowest threshold value and a second low threshold value, and the scheduled times in the unit time is higher than a scheduling probability threshold value, and the second low threshold value is higher than the lowest threshold value;
the resource quantity of the uplink transmission resource is averagely distributed in response to the uplink transmission rate being between the lowest threshold value and the second low threshold value and the scheduled times in unit time being lower than the scheduling probability threshold value; and
and allocating the uplink transmission resource according to the uplink transmission rate in response to the uplink transmission rate being higher than a highest threshold, wherein a value higher than the uplink transmission rate is assigned as the transmission rate using the uplink transmission resource, and the highest threshold is higher than the second lower threshold.
11. The base station of claim 9, wherein a plurality of the user devices are connected to the base station, and the processing circuit is configured to perform:
and determining a priority order for allocating the uplink transmission resources to the plurality of user equipments according to at least one of the uplink transmission rates corresponding to the plurality of user equipments and the scheduled times in the unit time.
12. The base station of claim 11, wherein the prioritization uses the uplink transmission resources with respect to a maximum number of user devices.
13. The base station of claim 8, wherein the uplink transmission resource request is an uplink scheduling request and the uplink transmission resource indication is an uplink scheduling grant.
14. The base station of claim 8 wherein the uplink record corresponding to the ue that made the uplink resource request is at least one of an uplink transmission rate of the ue and a scheduled number of times per unit time in a specific time before the base station received the uplink resource request.
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