CN111385900B - Uplink scheduling method and device - Google Patents

Uplink scheduling method and device Download PDF

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CN111385900B
CN111385900B CN201811636438.3A CN201811636438A CN111385900B CN 111385900 B CN111385900 B CN 111385900B CN 201811636438 A CN201811636438 A CN 201811636438A CN 111385900 B CN111385900 B CN 111385900B
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CN111385900A (en
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唐志华
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient

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Abstract

The application provides an uplink scheduling method and device. The uplink scheduling method comprises the following steps: determining uplink physical channel resources respectively reserved for three kinds of User Equipment (UE) in a current resource adjustment period, wherein the three kinds of UE comprise first UE with processing delay of 4, second UE with processing delay of 6 and third UE with processing delay of 8; obtaining the cache data volume of UE to be scheduled, wherein the UE is a first UE, a second UE or a third UE; and allocating the uplink physical channel resources to the UE from the reserved uplink physical channel resources according to the buffer data volume. The method and the device improve the utilization rate of the physical resources of the uplink channel and ensure the QoS of the UE.

Description

Uplink scheduling method and device
Technical Field
The present application relates to communications technologies, and in particular, to an uplink scheduling method and apparatus.
Background
With the development of the mobile internet, a great number of application services satisfying various specific functions are emerging, some of the services have strict requirements on data delay, such as online games, robbery, red packet robbery, and the like, and such services generally require that the delay of user data is as short as possible. In Long Term Evolution (LTE), Transmission Time Interval (TTI) is an important index affecting user data delay, and currently, the TTI is 1ms, and in practical applications, a sender sends a data block every 1ms, and a receiver receives a data block every 1 ms. Short time duration (short TTI, abbreviated as sTTI) is introduced into an R15 protocol of a third Generation Partnership Project (3rd Generation Partnership Project, abbreviated as 3GPP), for example, 2 or 3 Orthogonal Frequency Division Multiplexing (OFDM) symbols included in one sTTI are introduced, in practical applications, a User Equipment (User Equipment, abbreviated as UE) receives an Uplink (Uplink, abbreviated as UL) scheduling Grant (UL) on sTTIn, transmits data on sTTIn + k, and sets and indicates a value of k to the UE by an evolved Node B (eNB) according to capabilities reported by the UE, where there may be 3 values of {4,6,8 }. Therefore, there will be UEs with different processing delays in the system, and the corresponding base station needs to perform uplink scheduling on the UEs with different processing delays.
A possible multi-UE uplink scheduling method with different processing delays comprises the following steps: all the UEs to be scheduled are mixed together to arrange priorities, and a priority algorithm may adopt Proportional Fair (PF, for short), Round Robin (RR, for short), and the like, and Resource Blocks (RB) are sequentially allocated to the UEs to be scheduled according to the priority order.
However, if the UE with high priority, for example, the UE with k being 8, has a large traffic volume and is likely to be scheduled all the time, the UE with low priority, for example, the UE with k being 4 or k being 6, cannot be scheduled all the time, and cannot guarantee Quality of Service (Quality of Service, abbreviated as QoS).
Disclosure of Invention
The application provides an uplink scheduling method and device, which are used for improving the utilization rate of physical resources of an uplink channel and ensuring the QoS of UE.
In a first aspect, the present application provides an uplink scheduling method, including:
determining uplink physical channel resources respectively reserved for three kinds of User Equipment (UE) in a current resource adjustment period, wherein the three kinds of UE comprise first UE with processing delay of 4, second UE with processing delay of 6 and third UE with processing delay of 8; obtaining the cache data volume of UE to be scheduled, wherein the UE is a first UE, a second UE or a third UE; and allocating the uplink physical channel resources to the UE from the reserved uplink physical channel resources according to the buffer data volume.
According to the method and the device, the uplink physical channel resources are reserved for the UE with different processing time delays, the sRGB is distributed to the UE according to the resource reservation condition, the problems that the occupied amount of certain UE resources is insufficient and even the UE cannot be scheduled all the time in a data transmission network adopting the sTTI are solved, the utilization rate of the uplink physical channel resources is improved, and the QoS of the UE is guaranteed.
In a possible implementation manner, before determining uplink physical channel resources respectively reserved for three UEs in a current resource adjustment period, the method further includes: and in the current resource adjustment period, respectively reserving uplink physical channel resources for the three kinds of UE according to the traffic of the three kinds of UE in the previous resource adjustment period and/or the uplink physical channel resource amount allocated to the three kinds of UE in the previous resource adjustment period.
In a possible implementation manner, allocating uplink physical channel resources to the UE from the reserved uplink physical channel resources according to the amount of the buffered data includes: judging whether the amount of uplink physical channel resources reserved for the UE is larger than or equal to the amount of cache data of the UE; and if the amount of the uplink physical channel resources reserved for the UE is greater than or equal to the amount of the cache data of the UE, allocating the uplink physical channel resources to the UE, wherein the amount of the uplink physical channel resources is equal to the amount of the cache data of the UE, from the uplink physical channel resources reserved for the UE.
In a possible implementation manner, after determining whether an amount of uplink physical channel resources reserved for the UE is greater than or equal to an amount of buffered data of the UE, the method further includes: and if the amount of the uplink physical channel resources reserved for the UE is less than the amount of the cache data of the UE, allocating the uplink physical channel resources to the UE from the reserved uplink physical channel resources according to the processing delay of the UE.
In a possible implementation manner, allocating uplink physical channel resources to a UE from reserved uplink physical channel resources according to a processing delay of the UE includes: when the UE is a second UE, allocating uplink physical channel resources to the UE from the uplink physical channel resources reserved for the UE and the uplink physical channel resources reserved for a third UE; when the UE is a first UE, allocating uplink physical channel resources to the UE from the uplink physical channel resources reserved for the UE and the uplink physical channel resources reserved for a second UE; or allocating the uplink physical channel resources to the UE from the uplink physical channel resources reserved for the UE, the uplink physical channel resources reserved for the second UE and the uplink physical channel resources reserved for the third UE.
In one possible implementation, when the UE is a second UE, the uplink physical channel resources allocated to the UE from the uplink physical channel resources reserved for the third UE include the uplink physical channel resources reserved but not yet allocated to the third UE and/or the uplink physical channel resources reserved and already allocated to the third UE; when the UE is the first UE, the uplink physical channel resources allocated to the UE from the uplink physical channel resources reserved for the second UE comprise the uplink physical channel resources reserved but not allocated to the second UE and/or the uplink physical channel resources reserved and allocated to the second UE, and the uplink physical channel resources allocated to the UE from the uplink physical channel resources reserved for the third UE comprise the uplink physical channel resources reserved but not allocated to the third UE and/or the uplink physical channel resources reserved and allocated to the third UE.
In a second aspect, the present application provides an uplink scheduling apparatus, including:
a determining module, configured to determine uplink physical channel resources respectively reserved for three types of user equipment UE in a current resource adjustment period, where the three types of UE include a first UE with a processing delay of 4, a second UE with a processing delay of 6, and a third UE with a processing delay of 8; the system comprises an acquisition module, a scheduling module and a scheduling module, wherein the acquisition module is used for acquiring the cache data volume of UE to be scheduled, and the UE is a first UE, a second UE or a third UE; and the allocation module is used for allocating the uplink physical channel resources to the UE from the reserved uplink physical channel resources according to the buffer data volume.
According to the method and the device, the uplink physical channel resources are reserved for the UE with different processing time delays, the sRGB is distributed to the UE according to the resource reservation condition, the problems that the occupied amount of certain UE resources is insufficient and even the UE cannot be scheduled all the time in a data transmission network adopting the sTTI are solved, the utilization rate of the uplink physical channel resources is improved, and the QoS of the UE is guaranteed.
In one possible implementation manner, the method further includes: and the reservation module is used for respectively reserving the uplink physical channel resources for the three kinds of UE according to the service volumes of the three kinds of UE in the previous resource adjustment period and/or the uplink physical channel resource volumes allocated to the three kinds of UE in the previous resource adjustment period in the current resource adjustment period.
In a possible implementation manner, the allocation module is specifically configured to determine whether an amount of uplink physical channel resources reserved for the UE is greater than or equal to an amount of cache data of the UE; and if the amount of the uplink physical channel resources reserved for the UE is greater than or equal to the amount of the cache data of the UE, allocating the uplink physical channel resources to the UE, wherein the amount of the uplink physical channel resources is equal to the amount of the cache data of the UE, from the uplink physical channel resources reserved for the UE.
In a possible implementation manner, the allocating module is further configured to allocate the uplink physical channel resource to the UE from the reserved uplink physical channel resource according to the processing delay of the UE if the amount of the uplink physical channel resource reserved for the UE is smaller than the amount of the buffer data of the UE.
In a possible implementation manner, the allocating module is specifically configured to, when the UE is a second UE, allocate an uplink physical channel resource to the UE from an uplink physical channel resource reserved for the UE and an uplink physical channel resource reserved for a third UE; when the UE is a first UE, allocating uplink physical channel resources to the UE from the uplink physical channel resources reserved for the UE and the uplink physical channel resources reserved for a second UE; or allocating the uplink physical channel resources to the UE from the uplink physical channel resources reserved for the UE, the uplink physical channel resources reserved for the second UE and the uplink physical channel resources reserved for the third UE.
In one possible implementation, when the UE is a second UE, the uplink physical channel resources allocated to the UE from the uplink physical channel resources reserved for the third UE include the uplink physical channel resources reserved but not yet allocated to the third UE and/or the uplink physical channel resources reserved and already allocated to the third UE; when the UE is the first UE, the uplink physical channel resources allocated to the UE from the uplink physical channel resources reserved for the second UE comprise the uplink physical channel resources reserved but not allocated to the second UE and/or the uplink physical channel resources reserved and allocated to the second UE, and the uplink physical channel resources allocated to the UE from the uplink physical channel resources reserved for the third UE comprise the uplink physical channel resources reserved but not allocated to the third UE and/or the uplink physical channel resources reserved and allocated to the third UE.
In a third aspect, the present application provides a base station apparatus, including:
one or more processors;
a memory for storing one or more programs;
when the one or more programs are executed by the one or more processors, the one or more processors implement the uplink scheduling method according to any of the first aspect.
In a fourth aspect, the present application provides a computer-readable storage medium, which stores instructions for executing the uplink scheduling method of any one of the above first aspects when the instructions are executed on a computer.
In a fifth aspect, the present application provides a computer program, which when executed by a computer, is configured to execute the uplink scheduling method of any one of the first aspect.
Drawings
Fig. 1 is a flowchart of an embodiment of an uplink scheduling method according to the present application;
fig. 2 is a schematic diagram of uplink scheduling timing of a UE with different processing delays according to the present application;
fig. 3 is a schematic diagram of a resource reservation situation of an uplink physical channel according to the present application;
FIG. 4 is a schematic diagram of sRGB allocation of a third UE according to the present application;
fig. 5 is a schematic diagram of sRBG allocation of a second UE according to the present application;
FIG. 6 is a schematic diagram of another sRGB allocation of a second UE according to the present application;
FIG. 7 is a schematic diagram of another sRGB allocation of a second UE according to the present application;
fig. 8 is a schematic diagram illustrating sRBG allocation of a first UE according to the present application;
FIG. 9 is a schematic diagram of another sRGB allocation of a first UE according to the present application;
FIG. 10 is a schematic diagram of another sRGB allocation of a first UE according to the present application;
FIG. 11 is a schematic diagram of another sRGB allocation of a first UE according to the present application;
FIG. 12 is a schematic diagram illustrating a fifth sRGB allocation of the first UE according to the present application;
fig. 13 is a schematic structural diagram of a first uplink scheduling apparatus according to an embodiment of the present application;
fig. 14 is a schematic structural diagram of a second uplink scheduling apparatus according to the present application;
fig. 15 is a schematic structural diagram of an embodiment of a base station apparatus according to the present application.
Detailed Description
To make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below with reference to the drawings in the present application, and it is obvious that the described embodiments are some, but not all embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 is a flowchart of an embodiment of an uplink scheduling method in the present application, and as shown in fig. 1, an execution subject of this embodiment may be a base station device, and the uplink scheduling method may include:
step 101, determining uplink physical channel resources respectively reserved for three types of User Equipment (UE) in a current resource adjustment period.
According to the protocol, there may be UEs with different processing delays in a data transmission network using sTTI, where the UEs include three types, that is, a first UE with a processing delay of 4, a second UE with a processing delay of 6, and a third UE with a processing delay of 8. Fig. 2 is a schematic diagram of uplink scheduling timing of UEs with different processing delays according to the present application, as shown in fig. 2, a base station issues UL Grant to UE1 (with a processing delay of 4), UE2 (with a processing delay of 6), and UE3 (with a processing delay of 8) respectively in sTTI0 of TTI0, UE1 transmits uplink data using uplink physical channel resources specified in the UL Grant in sTTI4 of TTI0, UE2 transmits uplink data using uplink physical channel resources specified in the UL Grant in sTTI0 of TTI1, UE3 transmits uplink data using uplink physical channel resources specified in the UL Grant in sTTI2 of TTI1, it can be seen that, since the scheduling time of UE3 is latest, when the base station allocates uplink physical channel resources to it, the air interface resources at the scheduling time of the base station have not been allocated to other UEs, the allocable uplink physical channel resources of corresponding UE3 are sufficient, and UE1 also needs to be scheduled at the same scheduling time, when the base station device allocates the uplink physical channel resource of the scheduling time to the UE1, there may be already a resource occupied by the UE3, and the uplink physical channel resource that can be allocated to the UE1 is not enough or even not enough, and in the same way, the UE2 may cause the resource occupancy of the UE1 or the UE2 to be insufficient or even not scheduled all the time.
In order to ensure QoS, the base station device in this application reserves uplink physical channel resources for the three UEs before scheduling, that is, in a current resource adjustment period, the uplink physical channel resources are reserved for the three UEs respectively according to traffic volumes of the three UEs in a previous resource adjustment period and/or uplink physical channel resource volumes allocated to the three UEs in the previous resource adjustment period. According to the protocol specification, the allocation unit of the uplink physical channel resource in the data transmission network adopting the sTTI is a short RB Group (sRBG), and one sRBG usually includes 4 RBs. The base station equipment sets a resource adjusting period, and adjusts the number of the uplink physical channel resources reserved for each type of UE in each period according to the traffic of three types of UE in the previous resource adjusting period and/or the uplink physical channel resource amount allocated to the three types of UE in the previous resource adjusting period. The base station equipment can reserve uplink physical channel resources for three kinds of UE by adopting the following two methods:
in the first method, the base station equipment respectively reserves uplink physical channel resources for three kinds of UE according to the following formula:
Figure BDA0001930156490000051
wherein N iskThe number of sRGB reserved for the UE with the processing delay of k in the current resource adjustment period is represented, M represents the total number of usable sRGB in a short-duration transmission time interval (sTTI), and MkIndicates the traffic of the UE with processing delay k in the last resource adjustment period,
Figure BDA0001930156490000052
θkrepresenting the set of all UEs, BSs, with processing delays kn(t) represents the amount of buffer data of UEn at sTTit, Bn(T) represents the amount of data transmitted by UEn on a sRGB on sTTit, TadjIndicates the total number of sTTI included in one resource adjustment period.
And secondly, the base station equipment respectively reserves uplink physical channel resources for the three kinds of UE according to the following formula:
Figure BDA0001930156490000053
wherein N iskThe number of sRGB reserved for the UE with the processing delay of k in the current resource adjustment period is represented, M represents the total number of usable sRGB in one sTTI, and M represents the total number of usable sRGB in the current resource adjustment periodkRepresents the average of sRGB allocated to three UEs in the last resource adjustment period.
And 102, obtaining the buffer data volume of the UE to be scheduled.
The UE to be scheduled may be the first UE, the second UE, or the third UE. The UE that needs to send uplink data sends a Buffer Status Report (BSR) to the base station device, where the BSR is configured to provide information about how much data of the UE is buffered in the uplink Buffer to be sent to the base station device, and the base station device can know the buffered data amount of the UE to be scheduled according to the BSR, and then convert the buffered data amount into the sRBG number required by the UE.
And 103, allocating uplink physical channel resources to the UE from the reserved uplink physical channel resources according to the buffer data volume.
In step 101, the base station device may determine how many srbgs are respectively reserved for the UEs with three processing delays, so that when the base station device allocates srbgs, the base station device makes the UE to be scheduled obtain srbgs from the reserved uplink physical channel resources corresponding to the processing delays of the UE, that is, if the UE to be scheduled is a first UE, the base station device first selects srbgs from the uplink physical channel resources reserved for the first UE when allocating srbgs to the UE, if the UE to be scheduled is a second UE, the base station device first selects srbgs from the uplink physical channel resources reserved for the second UE when allocating srbgs to the UE, and if the UE to be scheduled is a third UE, the base station device first selects srbgs from the uplink physical channel resources reserved for the third UE when allocating srbgs to the UE. Therefore, the base station equipment firstly judges whether the amount of the uplink physical channel resources reserved corresponding to the processing delay of the UE to be scheduled is larger than or equal to the cache data amount of the UE, and if the amount of the reserved uplink physical channel resources is larger than or equal to the cache data amount of the UE, the uplink physical channel resources which are equal to the cache data amount of the UE are distributed to the UE from the reserved uplink physical channel resources. As long as the amount of the reserved uplink physical channel resources is enough to meet the sRBG demand of the UE to be scheduled, the base station device may directly allocate sRBG to the UE.
However, if the amount of the reserved uplink physical channel resource is smaller than the amount of the cache data of the UE to be scheduled, the base station device needs to allocate sRBG to the UE from the reserved uplink physical channel resource according to the processing delay of the UE. That is, the amount of the reserved uplink physical channel resources cannot meet the sRBG demand of the UE to be scheduled, at this time, in order to ensure the QoS of the UE, the base station device needs to consider that the sRBG is not allocated from the uplink physical channel resources reserved corresponding to the processing delay to which the UE to be scheduled belongs, and also needs to allocate the sRBG from the uplink physical channel resources reserved corresponding to other UEs which process the delay, and the base station device needs to ensure that the allocated sRBG is continuous.
According to the protocol specification, the sTTI protocol provides a resource multiplexing mechanism, when the UE supports Interleaved Frequency Division Multiplexing (IFDMA), the base station device may perform Multi-User Multiple-Input Multiple-Output (MU-MIMO) pairing, that is, one sRBG is allocated to two UEs, and the two UEs are distinguished by setting different Comb. Therefore, even if the sRBG allocated to the UE to be scheduled by the base station device comes from the uplink physical channel resource correspondingly reserved by the UE with other processing delays, the UE and the UE with other processing delays can jointly occupy the same sRBG to perform MU-MIMO pairing.
According to the method and the device, the uplink physical channel resources are reserved for the UE with different processing time delays, the sRGB is distributed to the UE according to the resource reservation condition, the problems that the occupied amount of certain UE resources is insufficient and even the UE cannot be scheduled all the time in a data transmission network adopting the sTTI are solved, the utilization rate of the uplink physical channel resources is improved, and the QoS of the UE is guaranteed.
The technical solution of the embodiment of the method shown in fig. 1 will be described in detail below by using specific examples.
Fig. 3 is a schematic diagram of a resource reservation situation of an uplink physical channel in the present application, and as shown in fig. 3, the number of srbgs reserved for a first UE by a base station device is 4, the srbgs are located at a high frequency, the number of srbgs reserved for a second UE is 4, the srbgs are located at an intermediate frequency, and the number of srbgs reserved for a third UE is 6, and the srbgs are located at a low frequency. Based on the resource reservation condition, the method for allocating sRBG to the UE to be scheduled by the base station device in the present application may include the following three steps:
firstly, the base station equipment allocates sRGB to UE3 (belonging to third UE)
The base station apparatus can allocate sRBG to the UE3 only in the uplink physical channel resource reserved for the third UE. For example, fig. 4 is a schematic diagram of sRBG allocation of a third UE in the present application, and as shown in fig. 4, it is assumed that UE3 needs 4 srbgs, a base station device issues UL Grant to UE3 at sTTI0, and a time when UE3 sends uplink data is sTTI 8. The number of srbgs reserved for the third UE on the sTTI8 is 6, so the base station device can directly select 4 srbgs from the 6 srbgs to allocate to the UE3, and in consideration of the continuity of allocating srbgs and improving the resource utilization rate, the base station device can allocate the 4 srbgs in order from low frequency to high frequency.
If the number of srbgs required by UE3 exceeds 6, the base station apparatus allocates all of the 6 reserved srbgs to UE3, and can only allocate the 6 srbgs at most. Since no MU-MIMO pairing is involved, Comb is 0.
Secondly, the base station equipment allocates sRGB to UE2 (belonging to second UE)
If the number of srbgs reserved for the second UE can meet the requirement of the UE2, the base station device selects srbgs allocated to the UE2 from the reserved srbgs. Exemplarily, fig. 5 is a schematic diagram of sRBG allocation of a second UE in the present application, as shown in fig. 5, on the basis of fig. 4, it is assumed that a UE2 needs 2 srbgs, a base station device issues a UL Grant to a UE2 at an sTTI2, and a time when the UE2 sends uplink data is also the sTTI 8. The number of srbgs reserved for the second UE on the sTTI8 is 4, so the base station device can directly select 2 srbgs from the 4 srbgs to allocate to the UE2, and in consideration of the continuity of allocating srbgs and improving the resource utilization rate, the base station device can allocate the 2 srbgs in order from low frequency to high frequency.
If the number of srbgs reserved for the second UE cannot meet the requirement of the UE2, the base station device may select, in addition to the srbgs reserved for the second UE, srbgs allocated to the UE2 from srbgs reserved for the third UE but not allocated to the third UE. For example, fig. 6 is a schematic diagram of another sRBG allocation of a second UE in the present application, as shown in fig. 6, on the basis of fig. 4, it is assumed that a UE2 needs 5 srbgs, a base station device issues a UL Grant to a UE2 at an sTTI2, and a time when the UE2 sends uplink data is also the sTTI 8. The number of srbgs reserved for the second UE on the sTTI8 is 4, and the number of srbgs reserved for the third UE but not yet allocated to the third UE is 2, so the base station apparatus may allocate 4 srbgs reserved to the UE2, and may further select 1 srbgs from the srbgs reserved for the third UE but not yet allocated to the third UE to allocate to the UE2, and in consideration of the continuity of allocating srbgs and improving resource utilization, the base station apparatus may allocate the 1 srbgs in order from high frequency to low frequency, so that the 1 sRBG and the 4 srbgs form a continuous uplink physical channel resource. Since no MU-MIMO pairing is involved, Comb is 0.
If the above situation still cannot meet the requirement of the UE2, the base station device may select the sRBG allocated to the UE2 from the srbgs reserved for and allocated to the third UE, in addition to the srbgs reserved for the second UE and the srbgs reserved but not allocated to the third UE. For example, fig. 7 is a schematic diagram of allocation of another sRBG of a second UE in the present application, as shown in fig. 7, on the basis of fig. 4, it is assumed that a UE2 needs 8 srbgs, a base station device issues a UL Grant to a UE2 at an sTTI2, and a time when the UE2 sends uplink data is also the sTTI 8. Since the number of srbgs reserved for the second UE is 4 and the number of srbgs reserved for the third UE but not yet allocated to the third UE is 2 in the sTTI8, the base station apparatus may allocate 2 srbgs to the UE2 from among the 4 srbgs reserved for the third UE and allocated to the third UE, in addition to allocating the reserved 4 srbgs and the remaining 2 srbgs to the UE2, and in consideration of continuity in allocating srbgs and improving resource utilization, the base station apparatus may allocate the 2 srbgs in order from a high frequency to a low frequency. Since MU-MIMO pairing is involved, Comb is 1.
If the sRBG reserved for the second UE, the sRBG reserved but not allocated to the third UE, and the sRBG reserved for the third UE are all added together and cannot meet the requirement of the UE2, the base station device may allocate the sRBG to the UE2 according to the total number of the three srbgs added together, where Comb is 1.
Thirdly, the base station equipment distributes sRGB to UE1 (belonging to first UE)
If the number of srbgs reserved for the first UE can meet the requirement of the UE1, the base station device selects srbgs allocated to the UE1 from the reserved srbgs. Exemplarily, fig. 8 is a schematic diagram of sRBG allocation of a first UE in the present application, as shown in fig. 8, on the basis of fig. 5, it is assumed that a UE1 needs 2 srbgs, a base station device issues a UL Grant to a UE1 at an sTTI4, and a time when the UE1 sends uplink data is also the sTTI 8. The number of srbgs reserved for the first UE on the sTTI8 is 4, so the base station device can directly select 2 srbgs from the 4 srbgs to allocate to the UE1, and in consideration of the continuity of allocating srbgs and improving the resource utilization rate, the base station device can allocate the 2 srbgs in order from high frequency to low frequency.
If the number of srbgs reserved for the first UE cannot meet the requirement of the UE1, the base station device may select, from the srbgs reserved for the second UE but not yet allocated to the second UE, the srbgs allocated to the UE1 in addition to the srbgs reserved for the first UE. For example, fig. 9 is a schematic diagram of another sRBG allocation of a first UE in the present application, as shown in fig. 9, on the basis of fig. 5, it is assumed that a UE1 needs 5 srbgs, a base station device issues a UL Grant to a UE1 at an sTTI4, and a time when the UE1 sends uplink data is also the sTTI 8. The number of srbgs reserved for the first UE on the sTTI8 is 4, and the number of srbgs reserved for the second UE but not yet allocated to the second UE is 2, so the base station apparatus may allocate 4 srbgs reserved to the UE1, and may further select 1 srbgs from the srbgs reserved for the second UE but not yet allocated to the second UE to allocate to the UE1, and in consideration of the continuity of allocating srbgs and improving resource utilization, the base station apparatus may allocate the 1 srbgs in order from high frequency to low frequency, so that the 1 sRBG and the 4 srbgs form a continuous uplink physical channel resource. Since no MU-MIMO pairing is involved, Comb is 0.
If the above situation still fails to meet the requirements of the UE1, the base station device may select the sRBG allocated to the UE1 from the srbgs reserved for and allocated to the second UE, in addition to the srbgs reserved for the first UE and the srbgs reserved but not allocated to the second UE. For example, fig. 10 is a schematic diagram of allocation of another sRBG of the first UE in the present application, as shown in fig. 10, on the basis of fig. 5, it is assumed that a UE1 needs 8 srbgs, a base station device issues a UL Grant to a UE1 at an sTTI4, and a time when the UE1 sends uplink data is also the sTTI 8. Since the number of srbgs reserved for the first UE on the sTTI8 is 4 and the number of srbgs reserved for the second UE but not yet allocated to the second UE is 2, the base station apparatus may allocate, to the UE1, 4 srbgs reserved for the second UE and the remaining 2 srbgs, and may allocate, to the UE1, 2 srbgs reserved for the second UE and allocated to the second UE, and the base station apparatus may allocate the 2 srbgs in order from a high frequency to a low frequency in consideration of continuity in allocating the srbgs and improving resource utilization. Since MU-MIMO pairing is involved, Comb is 1.
If the above situation still cannot meet the requirement of the UE1, the base station device may select the sRBG allocated to the UE1 from the srbgs reserved for the third UE, in addition to the srbgs reserved for the first UE, the srbgs reserved but not yet allocated to the second UE, and the srbgs reserved and allocated to the second UE. For example, fig. 11 is a schematic diagram of another sRBG allocation of a first UE in the present application, as shown in fig. 11, on the basis of fig. 5, it is assumed that a UE1 needs 10 srbgs, a base station device issues a UL Grant to a UE1 at an sTTI4, and a time when the UE1 sends uplink data is also the sTTI 8. The number of srbgs reserved for the first UE on the sTTI8 is 4, the number of srbgs reserved for the second UE but not yet allocated to the second UE is 2, the number of srbgs reserved for the second UE and already allocated to the second UE is 2, and the number of srbgs reserved for the third UE but not yet allocated to the third UE is 2, so the base station apparatus may allocate all of the above srbgs to the UE 1. Since MU-MIMO pairing is involved, Comb is 1.
For example, fig. 12 is a schematic diagram of fifth sRBG allocation of the first UE in the present application, as shown in fig. 12, on the basis of fig. 7, it is assumed that UE1 needs 12 srbgs, the base station device issues UL Grant to UE1 at sTTI4, and a time when UE1 sends uplink data is also sTTI 8. The number of srbgs reserved for the first UE on the sTTI8 is 4, the number of srbgs reserved for the second UE and allocated to the second UE is 4, the number of srbgs reserved for the third UE and allocated to the second UE is 4, and the number of srbgs reserved for the third UE and allocated to the third UE is 4, where 2 srbgs reserved for the third UE have already been subjected to MU-MIMO pairing of UE3 and UE2, and the base station apparatus may allocate all of the several srbgs to UE1, but since there are srbgs already subjected to MU-MIMO pairing, such srbgs cannot be reallocated to UE1, and the maximum number of srbgs that the base station apparatus can allocate to UE1 is 10. Since MU-MIMO pairing is involved, Comb is 1.
If the sRBG reserved for the first UE, the available sRBG reserved for the second UE, and the available sRBG reserved for the third UE are all added up and cannot meet the requirement of the UE1, the base station device may allocate the sRBG to the UE1 according to the total number of the three available srbgs, where Comb is 1.
Fig. 13 is a schematic structural diagram of a first uplink scheduling apparatus according to an embodiment of the present application, and as shown in fig. 13, the apparatus according to the present embodiment may include: the system comprises a determining module 11, an obtaining module 12 and an allocating module 13, wherein the determining module 11 is configured to determine uplink physical channel resources respectively reserved for three types of User Equipment (UE) in a current resource adjustment period, where the three types of UE include a first UE with a processing delay of 4, a second UE with a processing delay of 6 and a third UE with a processing delay of 8; an obtaining module 12, configured to obtain a cache data amount of a UE to be scheduled, where the UE is the first UE, the second UE, or the third UE; and an allocating module 13, configured to allocate uplink physical channel resources to the UE from the reserved uplink physical channel resources according to the cache data amount.
The apparatus of this embodiment may be used to implement the technical solutions of the method embodiments shown in fig. 1 to 12, and the implementation principles and technical effects are similar, which are not described herein again.
On the basis of the above technical solution, the allocating module 13 is specifically configured to determine whether an amount of uplink physical channel resources reserved for the UE is greater than or equal to an amount of cache data of the UE; and if the amount of the uplink physical channel resources reserved for the UE is greater than or equal to the amount of the cache data of the UE, allocating the uplink physical channel resources to the UE, wherein the amount of the uplink physical channel resources is equal to the amount of the cache data of the UE, from the uplink physical channel resources reserved for the UE.
On the basis of the above technical solution, the allocating module 13 is further configured to allocate uplink physical channel resources to the UE from the reserved uplink physical channel resources according to the processing delay of the UE if the amount of the uplink physical channel resources reserved for the UE is smaller than the amount of the buffer data of the UE.
On the basis of the above technical solution, the allocating module 13 is specifically configured to, when the UE is the second UE, allocate uplink physical channel resources to the UE from the uplink physical channel resources reserved for the UE and the uplink physical channel resources reserved for the third UE; and when the UE is the first UE, allocating uplink physical channel resources to the UE from the uplink physical channel resources reserved for the UE and the uplink physical channel resources reserved for the second UE.
On the basis of the above technical solution, the allocating module 13 is further configured to allocate uplink physical channel resources to the UE from the uplink physical channel resources reserved for the third UE when the UE is the first UE.
On the basis of the above technical solution, when the UE is the second UE, the uplink physical channel resources allocated to the UE from the uplink physical channel resources reserved for the third UE include the uplink physical channel resources reserved but not yet allocated to the third UE and/or the uplink physical channel resources reserved and already allocated to the third UE; when the UE is the first UE, the uplink physical channel resources allocated to the UE from the uplink physical channel resources reserved for the second UE comprise the uplink physical channel resources reserved but not allocated to the second UE and/or the uplink physical channel resources reserved and allocated to the second UE.
On the basis of the above technical solution, the uplink physical channel resources allocated to the UE from the uplink physical channel resources reserved for the third UE include the uplink physical channel resources reserved but not yet allocated to the third UE and/or the uplink physical channel resources reserved and already allocated to the third UE.
On the basis of the foregoing technical solution, fig. 14 is a schematic structural diagram of a second embodiment of the uplink scheduling apparatus of the present application, and as shown in fig. 14, the apparatus of the present embodiment may include: and a reserving module 14, configured to reserve, in the current resource adjustment period, uplink physical channel resources for the three UEs respectively according to the traffic volumes of the three UEs in the previous resource adjustment period and/or the uplink physical channel resource volumes allocated to the three UEs in the previous resource adjustment period.
The apparatus of this embodiment may be used to implement the technical solutions of the method embodiments shown in fig. 1 to 12, and the implementation principles and technical effects are similar, which are not described herein again.
Fig. 15 is a schematic structural diagram of an embodiment of a base station apparatus of the present application, as shown in fig. 15, the base station apparatus includes a processor 20, a memory 21, and a communication device 22; the number of the processors 20 in the base station device may be one or more, and one processor 20 is taken as an example in fig. 15; the processor 20, the memory 21, the input device 22 and the output device 23 in the base station apparatus may be connected by a bus or other means, and the connection by the bus is exemplified in fig. 15.
The memory 21 is a computer readable storage medium, and can be used for storing software programs, computer executable programs, and modules, such as program instructions/modules corresponding to the method in any of the embodiments shown in fig. 1-12. The processor 20 executes various functional applications of the device/terminal/server and data processing by running software programs, instructions and modules stored in the memory 21, that is, implements the uplink scheduling method described above.
The memory 21 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 21 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 21 may further include memory located remotely from the processor 20, which may be connected to the device/terminal/server via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The communication device 22 may be a device having a transceiving function for communicating with other network devices or a communication network.
In one possible implementation, the present application provides a computer-readable storage medium storing instructions for performing a method in any one of the embodiments shown in fig. 1-12 described above when the instructions are executed on a computer.
In one possible implementation, the present application provides a computer program for performing the method in any of the embodiments shown in fig. 1-12 described above when the computer program is executed by a computer.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims (14)

1. An uplink scheduling method, comprising:
determining uplink physical channel resources respectively reserved for three kinds of User Equipment (UE) in a current resource adjustment period, wherein the three kinds of UE comprise first UE with processing delay of 4, second UE with processing delay of 6 and third UE with processing delay of 8;
obtaining a cache data volume of UE to be scheduled, wherein the UE is the first UE, the second UE or the third UE;
and allocating uplink physical channel resources to the UE from the reserved uplink physical channel resources according to the cache data volume.
2. The method of claim 1, wherein before determining the uplink physical channel resources respectively reserved for the three UEs in the current resource adjustment period, the method further comprises:
and in the current resource adjustment period, respectively reserving uplink physical channel resources for the three kinds of UE according to the service volumes of the three kinds of UE in the previous resource adjustment period and/or the uplink physical channel resource volumes allocated to the three kinds of UE in the previous resource adjustment period.
3. The method according to claim 1 or 2, wherein said allocating uplink physical channel resources to the UE from the reserved uplink physical channel resources according to the amount of buffered data comprises:
judging whether the amount of uplink physical channel resources reserved for the UE is larger than or equal to the amount of cache data of the UE;
and if the amount of the uplink physical channel resources reserved for the UE is greater than or equal to the amount of the cache data of the UE, allocating the uplink physical channel resources to the UE, wherein the amount of the uplink physical channel resources is equal to the amount of the cache data of the UE, from the uplink physical channel resources reserved for the UE.
4. The method of claim 3, wherein after determining whether the amount of uplink physical channel resources reserved for the UE is greater than or equal to the amount of buffered data of the UE, further comprising:
and if the amount of the uplink physical channel resources reserved for the UE is smaller than the cache data amount of the UE, allocating the uplink physical channel resources to the UE from the reserved uplink physical channel resources according to the processing delay of the UE.
5. The method of claim 4, wherein the allocating uplink physical channel resources to the UE from the reserved uplink physical channel resources according to the processing delay of the UE comprises:
when the UE is the second UE, allocating uplink physical channel resources to the UE from the uplink physical channel resources reserved for the UE and the uplink physical channel resources reserved for the third UE;
when the UE is the first UE, allocating uplink physical channel resources to the UE from the uplink physical channel resources reserved for the UE and the uplink physical channel resources reserved for the second UE; or allocating the uplink physical channel resources to the UE from the uplink physical channel resources reserved for the UE, the uplink physical channel resources reserved for the second UE and the uplink physical channel resources reserved for the third UE.
6. The method of claim 5, wherein when the UE is the second UE, the physical uplink channel resources allocated to the UE from the physical uplink channel resources reserved for the third UE comprise physical uplink channel resources reserved but not yet allocated to the third UE and/or physical uplink channel resources reserved and already allocated to the third UE;
when the UE is the first UE, the uplink physical channel resources allocated to the UE from the uplink physical channel resources reserved for the second UE comprise the uplink physical channel resources reserved but not allocated to the second UE and/or the uplink physical channel resources reserved and allocated to the second UE, and the uplink physical channel resources allocated to the UE from the uplink physical channel resources reserved for the third UE comprise the uplink physical channel resources reserved but not allocated to the third UE and/or the uplink physical channel resources reserved and allocated to the third UE.
7. An uplink scheduling apparatus, comprising:
a determining module, configured to determine uplink physical channel resources respectively reserved for three types of user equipment UE in a current resource adjustment period, where the three types of UE include a first UE with a processing delay of 4, a second UE with a processing delay of 6, and a third UE with a processing delay of 8;
an obtaining module, configured to obtain a cache data amount of a UE to be scheduled, where the UE is the first UE, the second UE, or the third UE;
and the allocation module is used for allocating the uplink physical channel resources to the UE from the reserved uplink physical channel resources according to the cache data volume.
8. The apparatus of claim 7, further comprising:
and the reservation module is used for respectively reserving uplink physical channel resources for the three kinds of UE according to the service volumes of the three kinds of UE in the previous resource adjustment period and/or the uplink physical channel resource volumes allocated to the three kinds of UE in the previous resource adjustment period in the current resource adjustment period.
9. The apparatus according to claim 7 or 8, wherein the allocating module is specifically configured to determine whether an amount of uplink physical channel resources reserved for the UE is greater than or equal to an amount of buffer data of the UE; and if the amount of the uplink physical channel resources reserved for the UE is greater than or equal to the amount of the cache data of the UE, allocating the uplink physical channel resources to the UE, wherein the amount of the uplink physical channel resources is equal to the amount of the cache data of the UE, from the uplink physical channel resources reserved for the UE.
10. The apparatus of claim 9, wherein the allocating module is further configured to allocate uplink physical channel resources to the UE from the reserved uplink physical channel resources according to the processing delay of the UE if the amount of uplink physical channel resources reserved for the UE is smaller than the amount of buffered data of the UE.
11. The apparatus of claim 10, wherein the allocating module is specifically configured to, when the UE is the second UE, allocate uplink physical channel resources to the UE from the uplink physical channel resources reserved for the UE and the uplink physical channel resources reserved for the third UE; when the UE is the first UE, allocating uplink physical channel resources to the UE from the uplink physical channel resources reserved for the UE and the uplink physical channel resources reserved for the second UE; or allocating the uplink physical channel resources to the UE from the uplink physical channel resources reserved for the UE, the uplink physical channel resources reserved for the second UE and the uplink physical channel resources reserved for the third UE.
12. The apparatus of claim 11, wherein when the UE is the second UE, the physical uplink channel resources allocated to the UE from the physical uplink channel resources reserved for the third UE include physical uplink channel resources reserved but not yet allocated to the third UE and/or physical uplink channel resources reserved and already allocated to the third UE; when the UE is the first UE, the uplink physical channel resources allocated to the UE from the uplink physical channel resources reserved for the second UE comprise the uplink physical channel resources reserved but not allocated to the second UE and/or the uplink physical channel resources reserved and allocated to the second UE, and the uplink physical channel resources allocated to the UE from the uplink physical channel resources reserved for the third UE comprise the uplink physical channel resources reserved but not allocated to the third UE and/or the uplink physical channel resources reserved and allocated to the third UE.
13. A base station apparatus, comprising:
one or more processors;
a memory for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the uplink scheduling method of any of claims 1-6.
14. A computer-readable storage medium, wherein the computer-readable storage medium stores instructions for performing the uplink scheduling method according to any one of claims 1 to 6 when the instructions are executed on a computer.
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