CN117675094A - Communication method, device, equipment and storage medium - Google Patents
Communication method, device, equipment and storage medium Download PDFInfo
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Abstract
The application provides a communication method, a device, equipment and a storage medium, wherein in the method, network equipment determines the downlink resource utilization rate of a cell in a preset period; and determining the MCS level of the terminal equipment according to the downlink resource utilization rate. Under the condition of low resource utilization rate, the MCS level of the terminal equipment can be improved, and when the downlink resource utilization rate is higher, the MCS level can not be adjusted; when the downlink resource utilization rate is low, the MCS level may be raised to improve the network throughput.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a communications method, apparatus, device, and storage medium.
Background
Network throughput represents the amount of data that passes through a network per unit time. In the network system, under the condition that the traffic volume is not large or the number of users is small, the network throughput is low, so that the utilization rate of air interface resources is low.
How to improve the throughput of the network and fully utilize the air interface resources is a technical problem to be solved.
Disclosure of Invention
The application provides a communication method, a device, equipment and a storage medium.
In a first aspect, an embodiment of the present application provides a communication method, including:
determining the downlink resource utilization rate of a cell in a preset period T;
and determining the Modulation and Coding Scheme (MCS) level of the terminal equipment according to the downlink resource utilization rate.
In one embodiment, determining the MCS level according to the downlink resource utilization includes:
determining a first spectrum efficiency adjustment amount according to the downlink resource utilization rate;
and determining the MCS level according to the first frequency spectrum efficiency adjustment quantity.
In one embodiment, determining the first frequency efficiency adjustment amount according to the downlink resource utilization includes:
if the downlink resource utilization rate is smaller than a first threshold value, increasing a second spectrum efficiency adjustment amount by a first spectrum efficiency improvement amount to obtain the first spectrum efficiency adjustment amount;
if the downlink resource utilization rate is greater than or equal to the first threshold value and is smaller than a second threshold value, the second spectrum efficiency adjustment amount is used as the first spectrum efficiency adjustment amount;
if the downlink resource utilization rate is greater than or equal to the second threshold value and is smaller than a third threshold value, reducing the second spectrum efficiency adjustment amount by a first spectrum efficiency reduction amount to obtain the first spectrum efficiency adjustment amount;
If the downlink resource utilization rate is greater than or equal to the third threshold value, determining a preset minimum value as the first spectrum efficiency adjustment quantity;
the second spectrum efficiency adjustment amount is a first spectrum efficiency adjustment amount determined in a preset period T-1, and the first threshold value is smaller than the second threshold value and smaller than the third threshold value.
In one embodiment, determining the MCS level according to the first spectral efficiency adjustment amount includes:
determining a first spectrum efficiency based on channel quality indication CQI reported by the terminal equipment;
determining a third spectral efficiency adjustment;
determining a second spectral efficiency based on the first spectral efficiency, the third spectral efficiency adjustment, and the first spectral efficiency adjustment;
and determining the MCS level according to the second frequency spectrum efficiency.
In one embodiment, determining the third spectral efficiency adjustment amount includes:
in the preset period T, determining the positive feedback ACK times and negative feedback NACK times of the terminal equipment in the same terminal equipment type;
and determining the third spectrum efficiency adjustment amount according to the ACK times and the NACK times.
In one embodiment, determining the third spectral efficiency adjustment amount according to the number of ACKs and the number of NACKs includes:
If the negative feedback duty ratio is larger than a fourth threshold value, reducing the fourth spectrum efficiency adjustment amount by a second spectrum efficiency reduction amount to obtain the third spectrum efficiency adjustment amount;
if the negative feedback duty ratio is smaller than or equal to the fourth threshold value and the positive feedback duty ratio is larger than a fifth threshold value, the fourth spectrum efficiency adjustment amount is increased by a second spectrum efficiency improvement amount, and the third spectrum efficiency adjustment amount is obtained;
if the positive feedback duty ratio is smaller than or equal to the fifth threshold value, the fourth frequency spectrum efficiency adjustment amount is used as the third frequency spectrum efficiency adjustment amount;
the negative feedback duty ratio is the ratio of the NACK times to the positive and negative feedback times, the positive feedback duty ratio is the ratio of the ACK times to the positive and negative feedback times, and the positive and negative feedback times are the sum of the ACK times and the NACK times; the fourth spectral efficiency adjustment amount is a third spectral efficiency adjustment amount determined in a preset period T-1.
In one embodiment, the terminal device type is determined according to at least one of the following information:
the relative positions of the terminal equipment and the network equipment;
the number of transmission layers of the terminal equipment;
The channel environment corresponding to the terminal equipment;
and the transmission mode corresponding to the terminal equipment.
In one embodiment, determining the second spectral efficiency from the first spectral efficiency, the third spectral efficiency adjustment, and the first spectral efficiency adjustment comprises:
and taking the sum of the first spectral efficiency, the third spectral efficiency adjustment amount and the first spectral efficiency adjustment amount as the second spectral efficiency.
In one embodiment, determining the downlink resource utilization of the cell in the preset period T includes:
and in the preset period T, determining the downlink resource utilization rate according to the sum of the number of the downlink physical resource blocks PRB corresponding to each effective downlink time slot and the sum of the number of the downlink PRBs corresponding to each scheduled effective downlink time slot.
In one embodiment, the downlink resource utilization is determined using the following formula:
wherein dl_resource_use is a downlink resource utilization rate, dl_slot_num_t is the number of valid downlink time slots in the preset period T, and the dl_resource_use is a downlink resource utilization rateThe number of downlink PRBs when the time slot is j, wherein L is the number of the effective downlink time slots scheduled in the preset period T, and +. >And the number of the downlink PRBs scheduled for the ith time.
In one embodiment, the method further comprises:
and determining the first transmitting power of the terminal equipment according to the downlink resource utilization rate.
In one embodiment, determining the first transmit power of the terminal device according to the downlink resource utilization includes:
if the downlink resource utilization rate is smaller than a sixth threshold value, increasing the current transmission power by a second transmission power to obtain the first transmission power, wherein the current transmission power is the transmission power when the terminal equipment is scheduled.
In a second aspect, embodiments of the present application provide a network device including a memory, a transceiver, and a processor:
the memory is used for storing a computer program; the transceiver is used for receiving and transmitting data under the control of the processor; the processor is configured to read the computer program in the memory and perform the following operations:
determining the downlink resource utilization rate of a cell in a preset period T;
and determining the MCS level of the terminal equipment according to the downlink resource utilization rate.
In one embodiment, the processor is specifically configured to perform the following operations:
Determining a first spectrum efficiency adjustment amount according to the downlink resource utilization rate;
and determining the MCS level according to the first frequency spectrum efficiency adjustment quantity.
In one embodiment, the processor is specifically configured to perform the following operations:
if the downlink resource utilization rate is smaller than a first threshold value, increasing a second spectrum efficiency adjustment amount by a first spectrum efficiency improvement amount to obtain the first spectrum efficiency adjustment amount;
if the downlink resource utilization rate is greater than or equal to the first threshold value and is smaller than a second threshold value, the second spectrum efficiency adjustment amount is used as the first spectrum efficiency adjustment amount;
if the downlink resource utilization rate is greater than or equal to the second threshold value and is smaller than a third threshold value, reducing the second spectrum efficiency adjustment amount by a first spectrum efficiency reduction amount to obtain the first spectrum efficiency adjustment amount;
if the downlink resource utilization rate is greater than or equal to the third threshold value, determining a preset minimum value as the first spectrum efficiency adjustment quantity;
the second spectrum efficiency adjustment amount is a first spectrum efficiency adjustment amount determined in a preset period T-1, and the first threshold value is smaller than the second threshold value and smaller than the third threshold value.
In one embodiment, the processor is specifically configured to perform the following operations:
determining a first spectrum efficiency based on channel quality indication CQI reported by the terminal equipment;
determining a third spectral efficiency adjustment;
determining a second spectral efficiency based on the first spectral efficiency, the third spectral efficiency adjustment, and the first spectral efficiency adjustment;
and determining the MCS level according to the second frequency spectrum efficiency.
In one embodiment, the processor is specifically configured to perform the following operations:
in the preset period T, determining the positive feedback ACK times and negative feedback NACK times of the terminal equipment in the same terminal equipment type;
and determining the third spectrum efficiency adjustment amount according to the ACK times and the NACK times.
In one embodiment, the root processor is specifically configured to perform the following operations:
if the negative feedback duty ratio is larger than a fourth threshold value, reducing the fourth spectrum efficiency adjustment amount by a second spectrum efficiency reduction amount to obtain the third spectrum efficiency adjustment amount;
if the negative feedback duty ratio is smaller than or equal to the fourth threshold value and the positive feedback duty ratio is larger than a fifth threshold value, increasing the fourth spectrum efficiency adjustment amount by a second spectrum efficiency improvement amount to obtain the fourth spectrum efficiency adjustment amount;
If the positive feedback duty ratio is smaller than or equal to the fifth threshold value, the fourth frequency spectrum efficiency adjustment amount is used as the third frequency spectrum efficiency adjustment amount;
the negative feedback duty ratio is the ratio of the NACK times to the positive and negative feedback times, the positive feedback duty ratio is the ratio of the ACK times to the positive and negative feedback times, and the positive and negative feedback times are the sum of the ACK times and the NACK times; the fourth spectral efficiency adjustment amount is a third spectral efficiency adjustment amount determined in a preset period T-1.
In one embodiment, the terminal device type is determined according to at least one of the following information:
the relative positions of the terminal equipment and the network equipment;
the number of transmission layers of the terminal equipment;
the channel environment of the terminal equipment;
and the transmission mode of the terminal equipment.
In one embodiment, the processor is specifically configured to perform the following operations:
and taking the sum of the first spectral efficiency, the third spectral efficiency adjustment amount and the first spectral efficiency adjustment amount as the second spectral efficiency.
In one embodiment, the processor is specifically configured to perform the following operations:
And in the preset period T, determining the downlink resource utilization rate according to the sum of the number of the downlink PRBs corresponding to each effective downlink time slot and the sum of the number of the downlink PRBs corresponding to each scheduled effective downlink time slot.
In one embodiment, the processor is specifically configured to perform the following operations,
determining the utilization rate of the downlink resources by using the following formula:
wherein dl_resource_use is a downlink resource utilization rate, dl_slot_num_t is the number of valid downlink time slots in the preset period T, and the dl_resource_use is a downlink resource utilization rateThe number of downlink PRBs when the time slot is j, wherein L is the number of the effective downlink time slots scheduled in the preset period T, and +.>And the number of the downlink PRBs scheduled for the ith time.
In one embodiment, the processor is further configured to perform the following:
and determining the first transmitting power of the terminal equipment according to the downlink resource utilization rate.
In one embodiment, the processor is specifically configured to perform the following operations:
if the downlink resource utilization rate is smaller than a sixth threshold value, increasing the current transmission power by a second transmission power to obtain the first transmission power, wherein the current transmission power is the transmission power of the terminal equipment in scheduling.
In a third aspect, an embodiment of the present application provides a communication apparatus, including:
a first determining unit for determining the downlink resource utilization rate of the cell in a preset period T;
and the second determining unit determines the MCS level of the terminal equipment according to the downlink resource utilization rate.
In one embodiment, the second determining unit is specifically configured to:
determining a first spectrum efficiency adjustment amount according to the downlink resource utilization rate;
and determining the MCS level according to the first frequency spectrum efficiency adjustment quantity.
In one embodiment, the second determining unit is specifically configured to:
if the downlink resource utilization rate is smaller than a first threshold value, increasing a second spectrum efficiency adjustment amount by a first spectrum efficiency improvement amount to obtain the first spectrum efficiency adjustment amount;
if the downlink resource utilization rate is greater than or equal to the first threshold value and is smaller than a second threshold value, the second spectrum efficiency adjustment amount is used as the first spectrum efficiency adjustment amount;
if the downlink resource utilization rate is greater than or equal to the second threshold value and is smaller than a third threshold value, reducing the second spectrum efficiency adjustment amount by a first spectrum efficiency reduction amount to obtain the first spectrum efficiency adjustment amount;
If the downlink resource utilization rate is greater than or equal to the third threshold value, determining a preset minimum value as the first spectrum efficiency adjustment quantity;
the second spectrum efficiency adjustment amount is a first spectrum efficiency adjustment amount determined in a preset period T-1, and the first threshold value is smaller than the second threshold value and smaller than the third threshold value.
In one embodiment, the second determining unit is specifically configured to:
determining a first spectrum efficiency based on channel quality indication CQI reported by the terminal equipment;
determining a third spectral efficiency adjustment;
determining a second spectral efficiency based on the first spectral efficiency, the third spectral efficiency adjustment, and the first spectral efficiency adjustment;
and determining the MCS level according to the second frequency spectrum efficiency.
In one embodiment, the second determining unit is specifically configured to:
in the preset period T, determining the positive feedback ACK times and negative feedback NACK times of the terminal equipment in the same terminal equipment type;
and determining the third spectrum efficiency adjustment amount according to the ACK times and the NACK times.
In one embodiment, the second determining unit is specifically configured to:
If the negative feedback duty ratio is larger than a fourth threshold value, reducing the fourth spectrum efficiency adjustment amount by a second spectrum efficiency reduction amount to obtain the third spectrum efficiency adjustment amount;
if the negative feedback duty ratio is smaller than or equal to the fourth threshold value and the positive feedback duty ratio is larger than a fifth threshold value, the fourth spectrum efficiency adjustment amount is increased by a second spectrum efficiency improvement amount, and the third spectrum efficiency adjustment amount is obtained;
if the positive feedback duty ratio is smaller than or equal to the fifth threshold value, the fourth frequency spectrum efficiency adjustment amount is used as the third frequency spectrum efficiency adjustment amount;
the negative feedback duty ratio is the ratio of the NACK times to the positive and negative feedback times, the positive feedback duty ratio is the ratio of the ACK times to the positive and negative feedback times, and the positive and negative feedback times are the sum of the ACK times and the NACK times; the fourth spectral efficiency adjustment amount is a third spectral efficiency adjustment amount determined in a preset period T-1.
In one embodiment, the terminal device type is determined according to at least one of the following information:
the relative positions of the terminal equipment and the network equipment;
the number of transmission layers of the terminal equipment;
The channel environment of the terminal equipment;
and the transmission mode of the terminal equipment.
In one embodiment, the second determining unit is specifically configured to:
and taking the sum of the first spectral efficiency, the third spectral efficiency adjustment amount and the first spectral efficiency adjustment amount as the second spectral efficiency.
In one embodiment, the first determining unit is specifically configured to:
and in the preset period T, determining the downlink resource utilization rate according to the sum of the number of the downlink physical resource blocks PRB corresponding to each effective downlink time slot and the sum of the number of the downlink PRBs corresponding to each scheduled effective downlink time slot.
In one embodiment, the first determining unit is specifically configured to:
determining the utilization rate of the downlink resources by using the following formula:
wherein dl_resource_use is a downlink resource utilization rate, dl_slot_num_t is the number of valid downlink time slots in the preset period T, and the dl_resource_use is a downlink resource utilization rateThe number of downlink PRBs when the time slot is j, wherein L is the number of the effective downlink time slots scheduled in the preset period T, and +.>And the number of the downlink PRBs scheduled for the ith time.
In one embodiment, the apparatus further comprises a third determining unit for:
And determining the first transmitting power of the terminal equipment according to the downlink resource utilization rate.
In one embodiment, the third determining unit is specifically configured to:
if the downlink resource utilization rate is smaller than a sixth threshold value, increasing the current transmission power by a second transmission power to obtain the first transmission power, wherein the current transmission power is the transmission power when the terminal equipment is scheduled.
In a fourth aspect, embodiments of the present application provide a processor-readable storage medium storing a computer program for causing the processor to perform the method of the first aspect.
The application provides a communication method, a device, equipment and a storage medium, wherein in the method, network equipment determines the downlink resource utilization rate of a cell in a preset period; and determining the MCS level of the terminal equipment according to the downlink resource utilization rate. Under the condition of low resource utilization rate, the MCS level of the terminal equipment can be improved, and when the downlink resource utilization rate is higher, the MCS level can not be adjusted; when the downlink resource utilization rate is low, the MCS level may be raised to improve the network throughput.
Drawings
For a clearer description of the technical solutions of the present application or of the prior art, the drawings used in the description of the embodiments or of the prior art will be briefly described, it being obvious that the drawings in the description below are some embodiments of the invention, and that other drawings can be obtained from them without inventive effort for a person skilled in the art.
Fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the present application;
fig. 2 is a flowchart of a communication method provided in an embodiment of the present application;
FIG. 3 is a flowchart of determining a first spectral efficiency adjustment according to an embodiment of the present disclosure;
FIG. 4 is a flowchart of determining a third spectral efficiency adjustment according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a network device according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application.
Detailed Description
The term "plurality" in the embodiments of the present application means two or more, and other adjectives are similar thereto.
The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
The embodiment of the application provides a communication method, a device, equipment and a storage medium, which are used for reasonably improving the MCS level of terminal equipment so as to improve the network throughput.
The method and the device are based on the same application, and because the principles of solving the problems by the method and the device are similar, the implementation of the device and the method can be referred to each other, and the repetition is not repeated.
The technical scheme provided by the embodiment of the application can be suitable for various systems, in particular to a 5G system. For example, suitable systems may be global system for mobile communications (global system of mobile communication, GSM), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (wideband code division multiple access, WCDMA) universal packet radio service (general packet radio service, GPRS), long term evolution (long term evolution, LTE), LTE frequency division duplex (frequency division duplex, FDD), LTE time division duplex (time division duplex, TDD), long term evolution-advanced (long term evolution advanced, LTE-a), universal mobile system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX), 5G new air interface (new radio, NR), and the like. Terminal devices and network devices are included in these various systems. Core network parts such as evolved packet system (evloved packet system, EPS), 5G system (5 GS) etc. may also be included in the system.
The terminal device according to the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem, etc. The names of the terminal devices may also be different in different systems, for example in a 5G system, the terminal devices may be referred to as User Equipment (UE). The wireless terminal device may communicate with one or more Core Networks (CNs) via a radio access network (radio access network, RAN), which may be mobile terminal devices such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access network. Such as personal communication services (personal communication service, PCS) phones, cordless phones, session initiation protocol (session initiated protocol, SIP) phones, wireless local loop (wireless local loop, WLL) stations, personal digital assistants (personal digital assistant, PDAs), and the like. The wireless terminal device may also be referred to as a system, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile), remote station (remote station), access point (access point), remote terminal device (remote terminal), access terminal device (access terminal), user terminal device (user terminal), user agent (user agent), user equipment (user device), and the embodiments of the present application are not limited.
The network device according to the embodiment of the present application may be a base station, where the base station may include a plurality of cells for providing services for a terminal. A base station may also be called an access point or may be a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or other names, depending on the particular application. The network device may be operable to exchange received air frames with internet protocol (internet protocol, IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiments of the present application may be a network device (base transceiver station, BTS) in a global system for mobile communications (global system for mobile communications, GSM) or code division multiple access (code division multiple access, CDMA), a network device (NodeB) in a wideband code division multiple access (wide-band code division multiple access, WCDMA), an evolved network device (evolutional Node B, eNB or e-NodeB) in a long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), a home evolved base station (home evolved node B, heNB), a relay node (relay node), a home base station (femto), a pico base station (pico), and the like. In some network structures, the network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.
Multiple-input multiple-output (multi input multi output, MIMO) transmissions, which may be single-user MIMO (SU-MIMO) or multiple-user MIMO (MU-MIMO), may each be performed between a network device and a terminal device using one or more antennas. The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of the root antenna combinations.
The following describes the communication scenario of the present application. Fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the present application.
As shown in fig. 1, a communication system 100 is provided in an embodiment of the present application. The communication system 100 comprises at least one network device 101 and one or more terminal devices 102 connected to the network device 101.
In the above communication system, the channel quality index (channel quality indicator, CQI) can be used to quantitatively describe the quality of the channel. The terminal equipment estimates and obtains CQI according to the received downlink reference signal, then reports the CQI to the network equipment, and the network equipment selects proper modulation and coding mode (modulation and coding scheme, MCS) level according to the CQI.
If the above manner of determining the MCS level is still adopted in the scenario of low air interface resource utilization, the air interface resource cannot be fully utilized, resulting in low network throughput.
Based on the problems in the prior art, the application provides the following technical conception: in a preset period, the MCS level is flexibly adjusted according to the utilization rate of the downlink resource, and when the utilization rate of the downlink resource is higher, the MCS level can not be adjusted; when the downlink resource utilization rate is low, the MCS level may be raised to improve the network throughput.
The communication method provided in the present application is described below with reference to specific embodiments.
Fig. 2 is a flowchart of a communication method according to an embodiment of the present application. As shown in fig. 2, the method includes:
s201, determining the downlink resource utilization rate of the cell in a preset period T.
The execution body of the embodiment of the present application may be a network device such as a base station, or may be a communication device disposed in the network device, where the communication device may be implemented by software, or may be implemented by a combination of software and hardware.
The network device may periodically count the downlink resource utilization of the cell.
The size of the statistical period can be determined according to practical situations, which is not limited in the application.
A cell may be a coverage area of a network device.
The downlink resource utilization rate may be a utilization rate of a downlink air interface resource.
A low resource utilization indicates that there are more unused downlink air interface resources, and a high resource utilization indicates that there are fewer unused downlink air interface resources.
The downlink resource utilization may be a ratio between the used downlink effective air interface resources and all the downlink effective air interface resources.
In one possible implementation, the downlink resource utilization of a cell may be determined by:
and in the preset period T, determining the utilization rate of the downlink resources according to the sum of the numbers of the downlink physical resource blocks (physical resource block, PRB) corresponding to each effective downlink time slot and the sum of the numbers of the downlink PRBs corresponding to each scheduled effective downlink time slot.
Wherein, the provision of the effective downlink time slot in the protocol can be:
a) The time slot comprises at least one downlink or flexible symbol configured by high-layer signaling; and is also provided with
b) The time slot is not within a configured measurement gap (measurement gap).
The scheduled effective downlink time slot may refer to an effective downlink time slot with a scheduled task.
In one possible implementation, the downlink resource utilization may be determined using the following formula:
Wherein dl_resource_use is the downlink resource utilization, dl_slot_num_t is the number of valid downlink time slots in the preset period T,for the number of downlink PRBs in time slot j, L is the number of effective downlink time slots scheduled in preset period T, < >>And the number of the downlink PRBs scheduled for the ith time.
For example, there are 14 valid downlink timeslots in the preset period T, and each valid downlink timeslot includes 100 downlink PRBs; meanwhile, in the preset period T, 4 effective downlink time slots are provided with scheduling tasks, and each time slot schedules 40 downlink PRBs, so that the downlink resource utilization rate in the preset period T is 11.43%.
S202, determining the MCS level of the terminal equipment according to the utilization rate of the downlink resources.
In one possible implementation, the network device may determine a first spectrum efficiency adjustment amount according to a downlink resource utilization rate; and determining the MCS level according to the first spectrum efficiency adjustment quantity.
For example, the network device may determine the first spectral efficiency first, then determine the first spectral efficiency adjustment amount according to the downlink resource utilization, and determine the MCS level according to the first spectral efficiency and the first spectral efficiency adjustment amount.
The first spectrum efficiency may be determined based on CQI reported by the terminal device.
A relation table of CQI and spectrum efficiency is specified in the existing protocol, and according to the CQI reported by the terminal equipment, the first spectrum efficiency can be determined through table lookup.
For example, the correspondence between CQI and the first spectral efficiency is specifically described in tables 1 and 2, where the maximum modulation scheme corresponding to table 1 is 64QAM and the maximum modulation scheme corresponding to table 2 is 256QAM.
TABLE 1
TABLE 2
Wherein, QPSK is quadrature phase shift keying (quadrature phase shift keying, QPSK), and QAM is quadrature amplitude modulation (quadrature amplitude aodulation, QAM).
In the embodiment shown in fig. 2, the network device determines the downlink resource utilization of the cell in a preset period T; and determining the MCS level of the terminal equipment according to the downlink resource utilization rate. The network equipment can flexibly adjust the MCS level according to the downlink resource utilization rate, and the MCS level can not be adjusted when the downlink resource utilization rate is higher; when the downlink resource utilization rate is low, the MCS level may be raised to improve the network throughput.
The effect of the downlink resource utilization on the first spectrum efficiency adjustment amount will be described in detail below with reference to fig. 3, based on the embodiment shown in fig. 2.
Fig. 3 is a flowchart of determining a first spectral efficiency adjustment according to an embodiment of the present application. As shown in fig. 3:
s301, judging whether the utilization rate of the downlink resources is smaller than a first threshold value.
If yes, S302 is performed.
If not, then S303 is performed.
S302, increasing the second spectrum efficiency adjustment amount by a first spectrum efficiency improvement amount to obtain a first spectrum efficiency adjustment amount.
The second spectral efficiency adjustment amount is a first spectral efficiency adjustment amount determined in the preset period T-1.
Illustratively, the first spectral efficiency adjustment may be determined by the following formula:
Δ Eff_T ＝Δ Eff_T-1 +Δ Eff_up
wherein delta is Eff_T-1 The first spectral efficiency adjustment amount, which is determined in the preset period T-1, may also be referred to as a second spectral efficiency adjustment amount; delta Eff_T A first spectrum efficiency adjustment amount determined in a preset period T; delta Eff_up Is a first spectral efficiency improvement amount determined in a preset period T.
The initial value of the first spectral efficiency adjustment amount may be 0.
The specific value of the first spectral efficiency improvement amount may be determined based on simulation tests, which is not limited in this application.
S303, judging whether the utilization rate of the downlink resource is smaller than a second threshold value.
If yes, S304 is executed.
If not, S305 is performed.
S304, taking the second frequency spectrum efficiency adjustment amount as the first frequency spectrum efficiency adjustment amount.
S305, judging whether the utilization rate of the downlink resources is smaller than a third threshold value.
If yes, S306 is executed.
If not, S307 is performed.
S306, reducing the second spectrum efficiency adjustment amount by the first spectrum efficiency reduction amount to obtain the first spectrum efficiency adjustment amount.
Illustratively, the first spectral efficiency adjustment may be determined by the following formula:
Δ Eff_T ＝Δ Eff_T-1 -Δ Eff_down
wherein delta is Eff_T-1 The first spectral efficiency adjustment amount, which is determined in the preset period T-1, may also be referred to as a second spectral efficiency adjustment amount; delta Eff_T A first spectrum efficiency adjustment amount determined in a preset period T; delta Eff_down For a first spectral efficiency reduction determined during a preset period T.
The specific value of the first spectral efficiency reduction may be determined based on simulation testing, as this application is not limited in this regard.
S307, determining a preset minimum value as a first spectrum efficiency adjustment amount.
The preset minimum value may be 0.
The specific magnitudes of the first threshold value, the second threshold value and the third threshold value are obtained based on simulation test, and the application is not limited to the specific magnitudes.
On the basis of any of the above embodiments, the MCS level may be determined by:
determining a first spectrum efficiency based on CQI reported by terminal equipment; determining a third spectral efficiency adjustment; determining a second spectral efficiency based on the first spectral efficiency, the third spectral efficiency adjustment, and the first spectral efficiency adjustment; and determining the MCS level according to the second spectrum efficiency.
In one possible implementation, the second spectral efficiency may be determined by:
the sum of the first spectral efficiency, the third spectral efficiency adjustment amount, and the first spectral efficiency adjustment amount is used as the second spectral efficiency.
By way of example, the second spectral efficiency may be expressed by the following formula:
Eff＝Eff(cqi)+Δ Eff +Δ ue_typei_eff
wherein, eff represents the second spectral efficiency, eff (cqi) represents the first spectral efficiency, delta Eff Represents a first spectral efficiency adjustment, delta ue_typei_eff A third spectral efficiency adjustment amount is indicated.
A relation table of spectrum efficiency and MCS level is specified in the existing protocol, and the MCS level can be determined by looking up a table according to the second spectrum efficiency.
Under different modulation modes, the corresponding relation tables between the spectrum efficiency and the MCS level are different.
Next, table 3 is used to explain the correspondence between the spectral efficiency and the MCS level in the 64QAM modulation scheme, and table 4 is used to explain the correspondence between the spectral efficiency and the MCS level in the 256QAM modulation scheme.
TABLE 3 Table 3
TABLE 4 Table 4
The third frequency efficiency adjustment amount may be a frequency efficiency adjustment amount determined according to the type of the terminal device.
In one possible implementation, the third spectral efficiency adjustment may be determined by: determining the number of positive feedback (ACK) and negative feedback (negative acknowledge, NACK) of the terminal equipment in the same terminal equipment type in a preset period T; and determining a third spectrum efficiency adjustment amount according to the ACK times and the NACK times.
Next, a method of determining the third spectral efficiency adjustment amount will be described with reference to fig. 4.
Fig. 4 is a flowchart of determining a third spectral efficiency adjustment according to an embodiment of the present application. As shown in fig. 4:
s401, periodically counting the ACK times and NACK times of the terminal equipment in the same terminal equipment type.
The period for counting the feedback times of the terminal equipment and the period for counting the utilization rate of the downlink resources can be the same.
In one possible implementation, the number of ACKs and the number of NACKs for all terminal devices within the same terminal device type are counted in the same period.
S402, judging whether the negative feedback duty ratio is larger than a fourth threshold value.
If yes, S403 is executed.
If not, S404 is performed.
The negative feedback duty ratio is the ratio of the number of NACK times to the number of positive and negative feedback times, and the number of positive and negative feedback times is the sum of the number of ACK times and the number of NACK times.
For example, if the number of ACKs in a period is 10 and the number of nacks is 6, the negative feedback duty cycle is 6/16=0.375.
The specific size of the fourth threshold value is obtained based on simulation test, which is not limited in this application.
S403, reducing the fourth frequency spectrum efficiency adjustment amount by the second frequency spectrum efficiency reduction amount to obtain a third frequency spectrum efficiency adjustment amount.
The fourth spectral efficiency adjustment amount is a third spectral efficiency adjustment amount determined in the preset period T-1.
Illustratively, the third spectral efficiency adjustment may be determined by the following formula:
Δ ue_typei_eff_T ＝Δ ue_typei_eff_T-1 -Δ ue_type_eff_down
wherein delta is ue_typei_eff_T-1 The third spectral efficiency adjustment amount, which is determined in the preset period T-1, may also be referred to as a fourth spectral efficiency adjustment amount; delta ue_typei_eff_T A third spectral efficiency adjustment amount determined within a preset period T; delta ue_type_eff_down For a second spectral efficiency reduction determined during a preset period T.
The initial value of the third spectral efficiency adjustment amount may be 0.
The specific value of the second spectral efficiency reduction may be determined based on simulation testing, as this application is not limited in this regard.
S404, judging whether the positive feedback duty ratio is larger than a fifth threshold value.
If yes, S405 is executed.
If not, S406 is performed.
The positive feedback duty ratio is the ratio of the number of ACK and the number of positive and negative feedback times, and the number of positive and negative feedback times is the sum of the number of ACK and the number of NACK.
For example, if the number of ACKs in a period is 10 and the number of nacks is 6, the positive feedback duty cycle is 10/16=0.625.
The specific magnitude of the fifth threshold value is obtained based on simulation test, which is not limited in this application.
And S405, increasing the fourth frequency spectrum efficiency adjustment amount by the second frequency spectrum efficiency improvement amount to obtain a third frequency spectrum efficiency adjustment amount.
Illustratively, the third spectral efficiency adjustment may be determined by the following formula:
Δ ue_typei_eff_T ＝Δ ue_typei_eff_T-1 +Δ ue_type_eff_up
Wherein delta is ue_typei_eff_T-1 The third spectral efficiency adjustment amount, which is determined in the preset period T-1, may also be referred to as a fourth spectral efficiency adjustment amount; delta ue_typei_eff_T A third spectral efficiency adjustment amount determined within a preset period T; delta ue_type_eff_up And a second spectral efficiency improvement amount determined in the preset period T.
The specific value of the second spectral efficiency improvement amount may be determined based on simulation tests, which is not limited in this application.
S406, the fourth frequency spectrum efficiency adjustment amount is used as a third frequency spectrum efficiency adjustment amount.
A third, different, spectral efficiency adjustment may be determined depending on the different terminal device type.
Different terminal equipment types can be set according to different influences of the terminal equipment on channel quality in different environments.
In one possible implementation, the terminal device type is determined according to at least one of the following information:
the relative position of the terminal equipment and the network equipment;
the number of transmission layers of the terminal equipment;
the channel environment of the terminal equipment;
transmission mode of the terminal device.
The relative positions of the terminal equipment and the network equipment can be classified as good, medium or bad; wherein the closer the terminal device is to the network device, the better the relative position. The number of transmission layers of the terminal device may be classified into 1 order, 2 order, 3 order or 4 order. The channel environment of the terminal device may be classified as a line of sight (LOS) environment or a non-line of sight (NLOS) environment. The transmission mode of the terminal device may be classified as either a codebook or a non-codebook.
The type of the terminal equipment can be determined according to the relative positions of the terminal equipment and the network equipment; or the number of the transmission layers of the terminal equipment can be determined; or according to the channel environment of the terminal equipment; or according to the transmission mode of the terminal equipment; or determining according to the relative positions of the terminal equipment and the network equipment and the number of transmission layers of the terminal equipment; or according to the relative position of the terminal equipment and the network equipment and the channel environment of the terminal equipment; or according to the relative position of the terminal equipment and the network equipment and the transmission mode of the terminal equipment; or determining according to the number of transmission layers of the terminal equipment and the channel environment of the terminal equipment; or determining according to the number of the transmission layers of the terminal equipment and the transmission mode of the terminal equipment; or according to the channel environment of the terminal equipment and the transmission mode of the terminal equipment; or according to the relative position of the terminal equipment and the network equipment, the number of transmission layers of the terminal equipment and the channel environment of the terminal equipment; or according to the relative position of the terminal equipment and the network equipment, the number of transmission layers of the terminal equipment and the transmission mode of the terminal equipment; the method can also be determined according to the number of the transmission layers of the terminal equipment, the number of the transmission layers of the terminal equipment and the transmission mode of the terminal equipment; or according to the relative position of the terminal equipment and the network equipment, the number of transmission layers of the terminal equipment, the channel environment of the terminal equipment and the transmission mode of the terminal equipment.
By way of example, the terminal device type may be { relative location classified as good, order 1, LOS environment, codebook }.
According to the embodiment of the application, the MCS level can be flexibly adjusted according to the downlink resource utilization rate, and when the downlink resource utilization rate is higher, the MCS level can not be adjusted; when the downlink resource utilization rate is low, the MCS level may be raised to improve the network throughput. Meanwhile, the MCS level is adjusted by combining the downlink resource utilization rate and the terminal equipment type, so that the accuracy of adjustment can be ensured.
In one possible implementation manner, after determining the downlink resource utilization rate of the cell in the preset period T, the first transmit power of the terminal device may also be determined according to the downlink resource utilization rate.
In one possible implementation manner, if the downlink resource utilization is smaller than the sixth threshold, the current transmission power is increased by the second transmission power to obtain the first transmission power, where the current transmission power is the transmission power of the terminal device during scheduling. And if the downlink resource utilization rate is greater than or equal to a sixth threshold value, maintaining the current transmitting power.
Wherein the sixth threshold may represent a threshold of a downlink resource utilization that initiates the transmit power adjustment. The second transmit power may be obtained from a simulation test, which is not limited in this application.
In the case of low downlink resource utilization, the transmit power of the terminal device may be increased to increase the reliability of transmission.
Fig. 5 is a schematic structural diagram of a network device according to an embodiment of the present application. As shown in fig. 5, the apparatus includes: a memory 501, a transceiver 502 and a processor 503.
A memory 501 for storing a computer program;
a transceiver 502 for transceiving data under the control of the processor 503;
a processor 503 for reading the computer program stored in the memory 501 and performing the following operations:
determining the downlink resource utilization rate of a cell in a preset period T;
and determining the MCS level of the terminal equipment according to the downlink resource utilization rate.
In one embodiment, the processor is specifically configured to perform the following operations:
determining a first spectrum efficiency adjustment amount according to the downlink resource utilization rate;
and determining the MCS level according to the first frequency spectrum efficiency adjustment quantity.
In one embodiment, the processor is specifically configured to perform the following operations:
if the downlink resource utilization rate is smaller than a first threshold value, increasing a second spectrum efficiency adjustment amount by a first spectrum efficiency improvement amount to obtain the first spectrum efficiency adjustment amount;
If the downlink resource utilization rate is greater than or equal to the first threshold value and is smaller than a second threshold value, the second spectrum efficiency adjustment amount is used as the first spectrum efficiency adjustment amount;
if the downlink resource utilization rate is greater than or equal to the second threshold value and is smaller than a third threshold value, reducing the second spectrum efficiency adjustment amount by a first spectrum efficiency reduction amount to obtain the first spectrum efficiency adjustment amount;
if the downlink resource utilization rate is greater than or equal to the third threshold value, determining a preset minimum value as the first spectrum efficiency adjustment quantity;
the second spectrum efficiency adjustment amount is a first spectrum efficiency adjustment amount determined in a preset period T-1, and the first threshold value is smaller than the second threshold value and smaller than the third threshold value.
In one embodiment, the processor is specifically configured to perform the following operations:
determining a first spectrum efficiency based on channel quality indication CQI reported by the terminal equipment;
determining a third spectral efficiency adjustment;
determining a second spectral efficiency based on the first spectral efficiency, the third spectral efficiency adjustment, and the first spectral efficiency adjustment;
And determining the MCS level according to the second frequency spectrum efficiency.
In one embodiment, the processor is specifically configured to perform the following operations:
in the preset period T, determining the positive feedback ACK times and negative feedback NACK times of the terminal equipment in the same terminal equipment type;
and determining the third spectrum efficiency adjustment amount according to the ACK times and the NACK times.
In one embodiment, the root processor is specifically configured to perform the following operations:
if the negative feedback duty ratio is larger than a fourth threshold value, reducing the fourth spectrum efficiency adjustment amount by a second spectrum efficiency reduction amount to obtain the third spectrum efficiency adjustment amount;
if the negative feedback duty ratio is smaller than or equal to the fourth threshold value and the positive feedback duty ratio is larger than a fifth threshold value, increasing the fourth spectrum efficiency adjustment amount by a second spectrum efficiency improvement amount to obtain the fourth spectrum efficiency adjustment amount;
if the positive feedback duty ratio is smaller than or equal to the fifth threshold value, the fourth frequency spectrum efficiency adjustment amount is used as the third frequency spectrum efficiency adjustment amount;
the negative feedback duty ratio is the ratio of the NACK times to the positive and negative feedback times, the positive feedback duty ratio is the ratio of the ACK times to the positive and negative feedback times, and the positive and negative feedback times are the sum of the ACK times and the NACK times; the fourth spectral efficiency adjustment amount is a third spectral efficiency adjustment amount determined in a preset period T-1.
In one embodiment, the terminal device type is determined according to at least one of the following information:
the relative positions of the terminal equipment and the network equipment;
the number of transmission layers of the terminal equipment;
the channel environment of the terminal equipment;
and the transmission mode of the terminal equipment.
In one embodiment, the processor is specifically configured to perform the following operations:
and taking the sum of the first spectral efficiency, the third spectral efficiency adjustment amount and the first spectral efficiency adjustment amount as the second spectral efficiency.
In one embodiment, the processor is specifically configured to perform the following operations:
and in the preset period T, determining the downlink resource utilization rate according to the sum of the number of the downlink PRBs corresponding to each effective downlink time slot and the sum of the number of the downlink PRBs corresponding to each scheduled effective downlink time slot.
In one embodiment, the processor is specifically configured to perform the following operations,
determining the utilization rate of the downlink resources by using the following formula:
wherein dl_resource_use is a downlink resource utilization rate, dl_slot_num_t is the number of valid downlink time slots in the preset period T, and the dl_resource_use is a downlink resource utilization rate The number of downlink PRBs when the time slot is j, wherein L is the number of the effective downlink time slots scheduled in the preset period T, and +.>And the number of the downlink PRBs scheduled for the ith time.
In one embodiment, the processor is further configured to perform the following:
and determining the first transmitting power of the terminal equipment according to the downlink resource utilization rate.
In one embodiment, the processor is specifically configured to perform the following operations:
if the downlink resource utilization rate is smaller than a sixth threshold value, increasing the current transmission power by a second transmission power to obtain the first transmission power, wherein the current transmission power is the transmission power of the terminal equipment in scheduling.
Wherein in fig. 5, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 503 and various circuits of memory represented by memory 501, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 502 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over transmission media, including wireless channels, wired channels, optical cables, and the like. The processor 503 is responsible for managing the bus architecture and general processing, and the memory 501 may store data used by the processor 503 in performing operations.
The processor 503 may be a central processing unit (central processing unit, CPU), an application specific integrated circuit (application specific integrated circuit, ASIC), a field-programmable gate array (field-programmable gate array, FPGA), or a complex programmable logic device (complex programmable logic device, CPLD), or the processor may employ a multi-core architecture.
It should be noted that, the above device provided in the present application can implement all the method steps implemented by the network device in the above method embodiment, and can achieve the same technical effects, and the same parts and beneficial effects as those of the method embodiment in the present embodiment are not described in detail herein.
Fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application. As shown in fig. 6, the apparatus includes:
a first determining unit 601 determines a downlink resource utilization rate of a cell in a preset period T;
and a second determining unit 602, configured to determine an MCS level of the terminal device according to the downlink resource utilization.
In one embodiment, the second determining unit 602 is specifically configured to:
determining a first spectrum efficiency adjustment amount according to the downlink resource utilization rate;
and determining the MCS level according to the first frequency spectrum efficiency adjustment quantity.
In one embodiment, the second determining unit 602 is specifically configured to:
if the downlink resource utilization rate is smaller than a first threshold value, increasing a second spectrum efficiency adjustment amount by a first spectrum efficiency improvement amount to obtain the first spectrum efficiency adjustment amount;
if the downlink resource utilization rate is greater than or equal to the first threshold value and is smaller than a second threshold value, the second spectrum efficiency adjustment amount is used as the first spectrum efficiency adjustment amount;
if the downlink resource utilization rate is greater than or equal to the second threshold value and is smaller than a third threshold value, reducing the second spectrum efficiency adjustment amount by a first spectrum efficiency reduction amount to obtain the first spectrum efficiency adjustment amount;
if the downlink resource utilization rate is greater than or equal to the third threshold value, determining a preset minimum value as the first spectrum efficiency adjustment quantity;
the second spectrum efficiency adjustment amount is a first spectrum efficiency adjustment amount determined in a preset period T-1, and the first threshold value is smaller than the second threshold value and smaller than the third threshold value.
In one embodiment, the second determining unit 602 is specifically configured to:
determining a first spectrum efficiency based on channel quality indication CQI reported by the terminal equipment;
Determining a third spectral efficiency adjustment;
determining a second spectral efficiency based on the first spectral efficiency, the third spectral efficiency adjustment, and the first spectral efficiency adjustment;
and determining the MCS level according to the second frequency spectrum efficiency.
In one embodiment, the second determining unit 602 is specifically configured to:
in the preset period T, determining the positive feedback ACK times and negative feedback NACK times of the terminal equipment in the same terminal equipment type;
and determining the third spectrum efficiency adjustment amount according to the ACK times and the NACK times.
In one embodiment, the second determining unit 602 is specifically configured to:
if the negative feedback duty ratio is larger than a fourth threshold value, reducing the fourth spectrum efficiency adjustment amount by a second spectrum efficiency reduction amount to obtain the third spectrum efficiency adjustment amount;
if the negative feedback duty ratio is smaller than or equal to the fourth threshold value and the positive feedback duty ratio is larger than a fifth threshold value, the fourth spectrum efficiency adjustment amount is increased by a second spectrum efficiency improvement amount, and the third spectrum efficiency adjustment amount is obtained;
if the positive feedback duty ratio is smaller than or equal to the fifth threshold value, the fourth frequency spectrum efficiency adjustment amount is used as the third frequency spectrum efficiency adjustment amount;
The negative feedback duty ratio is the ratio of the NACK times to the positive and negative feedback times, the positive feedback duty ratio is the ratio of the ACK times to the positive and negative feedback times, and the positive and negative feedback times are the sum of the ACK times and the NACK times; the fourth spectral efficiency adjustment amount is a third spectral efficiency adjustment amount determined in a preset period T-1.
In one embodiment, the terminal device type is determined according to at least one of the following information:
the relative positions of the terminal equipment and the network equipment;
the number of transmission layers of the terminal equipment;
the channel environment of the terminal equipment;
and the transmission mode of the terminal equipment.
In one embodiment, the second determining unit 602 is specifically configured to:
and taking the sum of the first spectral efficiency, the third spectral efficiency adjustment amount and the first spectral efficiency adjustment amount as the second spectral efficiency.
In one embodiment, the first determining unit 601 is specifically configured to:
and in the preset period T, determining the downlink resource utilization rate according to the sum of the number of the downlink physical resource blocks PRB corresponding to each effective downlink time slot and the sum of the number of the downlink PRBs corresponding to each scheduled effective downlink time slot.
In one embodiment, the first determining unit 601 is specifically configured to:
determining the utilization rate of the downlink resources by using the following formula:
wherein dl_resource_use is a downlink resource utilization rate, dl_slot_num_t is the number of valid downlink time slots in the preset period T, and the dl_resource_use is a downlink resource utilization rateThe number of downlink PRBs when the time slot is j, wherein L is the number of the effective downlink time slots scheduled in the preset period T, and +.>And the number of the downlink PRBs scheduled for the ith time.
In an embodiment, the apparatus further comprises a third determining unit 603, the third determining unit 603 being configured to:
and determining the first transmitting power of the terminal equipment according to the downlink resource utilization rate.
In one embodiment, the third determining unit 603 is specifically configured to:
if the downlink resource utilization rate is smaller than a sixth threshold value, increasing the current transmission power by a second transmission power to obtain the first transmission power, wherein the current transmission power is the transmission power when the terminal equipment is scheduled.
It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice. In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units described above, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a processor-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all or part of the technical solution contributing to the prior art or in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the methods of the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
It should be noted that, the above device provided in the present application can implement all the method steps implemented by the method embodiment and achieve the same technical effects, and specific details of the same parts and beneficial effects as those of the method embodiment in the present embodiment are not described herein.
Embodiments of the present application also provide a processor-readable storage medium storing a computer program for causing a processor to perform the method according to any one of the above-described method embodiments.
Processor-readable storage media can be any available media or data storage device that can be accessed by a computer including, but not limited to, magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CD, DVD, BD, HVD, etc.), and semiconductor memory (e.g., ROM, EPROM, EEPROM, nonvolatile memory (NAND FLASH), solid State Disk (SSD)), etc.
Embodiments of the present application also provide a computer program product comprising a computer program which, when executed by a processor, implements a method according to any of the above method embodiments.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.
Claims (26)
1. A method of communication, comprising:
determining the downlink resource utilization rate of a cell in a preset period T;
and determining the Modulation and Coding Scheme (MCS) level of the terminal equipment according to the downlink resource utilization rate.
2. The method of claim 1, wherein determining the MCS level based on the downlink resource utilization comprises:
determining a first spectrum efficiency adjustment amount according to the downlink resource utilization rate;
And determining the MCS level according to the first frequency spectrum efficiency adjustment quantity.
3. The method of claim 2, wherein determining the first frequency efficiency adjustment amount based on the downlink resource utilization comprises:
if the downlink resource utilization rate is smaller than a first threshold value, increasing a second spectrum efficiency adjustment amount by a first spectrum efficiency improvement amount to obtain the first spectrum efficiency adjustment amount;
if the downlink resource utilization rate is greater than or equal to the first threshold value and is smaller than a second threshold value, the second spectrum efficiency adjustment amount is used as the first spectrum efficiency adjustment amount;
if the downlink resource utilization rate is greater than or equal to the second threshold value and is smaller than a third threshold value, reducing the second spectrum efficiency adjustment amount by a first spectrum efficiency reduction amount to obtain the first spectrum efficiency adjustment amount;
if the downlink resource utilization rate is greater than or equal to the third threshold value, determining a preset minimum value as the first spectrum efficiency adjustment quantity;
the second spectrum efficiency adjustment amount is a first spectrum efficiency adjustment amount determined in a preset period T-1, and the first threshold value is smaller than the second threshold value and smaller than the third threshold value.
4. A method according to claim 2 or 3, wherein determining the MCS level according to the first spectral efficiency adjustment amount comprises:
determining a first spectrum efficiency based on channel quality indication CQI reported by the terminal equipment;
determining a third spectral efficiency adjustment;
determining a second spectral efficiency based on the first spectral efficiency, the third spectral efficiency adjustment, and the first spectral efficiency adjustment;
and determining the MCS level according to the second frequency spectrum efficiency.
5. The method of claim 4, wherein determining a third spectral efficiency adjustment comprises:
in the preset period T, determining the positive feedback ACK times and negative feedback NACK times of the terminal equipment in the same terminal equipment type;
and determining the third spectrum efficiency adjustment amount according to the ACK times and the NACK times.
6. The method of claim 5, wherein determining the third spectral efficiency adjustment amount based on the number of ACKs and the number of NACKs comprises:
if the negative feedback duty ratio is larger than a fourth threshold value, reducing the fourth spectrum efficiency adjustment amount by a second spectrum efficiency reduction amount to obtain the third spectrum efficiency adjustment amount;
If the negative feedback duty ratio is smaller than or equal to the fourth threshold value and the positive feedback duty ratio is larger than a fifth threshold value, the fourth spectrum efficiency adjustment amount is increased by a second spectrum efficiency improvement amount, and the third spectrum efficiency adjustment amount is obtained;
if the positive feedback duty ratio is smaller than or equal to the fifth threshold value, the fourth frequency spectrum efficiency adjustment amount is used as the third frequency spectrum efficiency adjustment amount;
the negative feedback duty ratio is the ratio of the NACK times to the positive and negative feedback times, the positive feedback duty ratio is the ratio of the ACK times to the positive and negative feedback times, and the positive and negative feedback times are the sum of the ACK times and the NACK times; the fourth spectral efficiency adjustment amount is a third spectral efficiency adjustment amount determined in a preset period T-1.
7. The method of claim 5, wherein the terminal device type is determined based on at least one of the following information:
the relative positions of the terminal equipment and the network equipment;
the number of transmission layers of the terminal equipment;
the channel environment of the terminal equipment;
and the transmission mode of the terminal equipment.
8. The method of claim 4, wherein determining a second spectral efficiency based on the first spectral efficiency, the third spectral efficiency adjustment, and the first spectral efficiency adjustment comprises:
And taking the sum of the first spectral efficiency, the third spectral efficiency adjustment amount and the first spectral efficiency adjustment amount as the second spectral efficiency.
9. The method of claim 1, wherein determining the downlink resource utilization of the cell during the preset period T comprises:
and in the preset period T, determining the downlink resource utilization rate according to the sum of the number of the downlink physical resource blocks PRB corresponding to each effective downlink time slot and the sum of the number of the downlink PRBs corresponding to each scheduled effective downlink time slot.
10. The method of claim 9, wherein the downlink resource utilization is determined using the formula:
wherein dl_resource_use is a downlink resource utilization rate, dl_slot_num_t is the number of valid downlink time slots in the preset period T, and the dl_resource_use is a downlink resource utilization rateThe number of downlink PRBs when the time slot is j, wherein L is the number of the effective downlink time slots scheduled in the preset period T, and +.>And the number of the downlink PRBs scheduled for the ith time.
11. The method according to claim 1, 9 or 10, characterized in that the method further comprises:
and determining the first transmitting power of the terminal equipment according to the downlink resource utilization rate.
12. The method of claim 11, wherein determining the first transmit power of the terminal device based on the downlink resource utilization comprises:
if the downlink resource utilization rate is smaller than a sixth threshold value, increasing the current transmission power by a second transmission power to obtain the first transmission power, wherein the current transmission power is the transmission power when the terminal equipment is scheduled.
13. A network device comprising a memory, a transceiver, and a processor:
the memory is used for storing a computer program;
the transceiver is used for receiving and transmitting data under the control of the processor;
the processor is configured to read the computer program in the memory and perform the following operations:
determining the downlink resource utilization rate of a cell in a preset period T;
and determining the MCS level of the terminal equipment according to the downlink resource utilization rate.
14. The apparatus of claim 13, wherein the processor is specifically configured to:
determining a first spectrum efficiency adjustment amount according to the downlink resource utilization rate;
and determining the MCS level according to the first frequency spectrum efficiency adjustment quantity.
15. The apparatus of claim 14, wherein the processor is specifically configured to:
if the downlink resource utilization rate is smaller than a first threshold value, increasing a second spectrum efficiency adjustment amount by a first spectrum efficiency improvement amount to obtain the first spectrum efficiency adjustment amount;
if the downlink resource utilization rate is greater than or equal to the first threshold value and is smaller than a second threshold value, the second spectrum efficiency adjustment amount is used as the first spectrum efficiency adjustment amount;
if the downlink resource utilization rate is greater than or equal to the second threshold value and is smaller than a third threshold value, reducing the second spectrum efficiency adjustment amount by a first spectrum efficiency reduction amount to obtain the first spectrum efficiency adjustment amount;
if the downlink resource utilization rate is greater than or equal to the third threshold value, determining a preset minimum value as the first spectrum efficiency adjustment quantity;
the second spectrum efficiency adjustment amount is a first spectrum efficiency adjustment amount determined in a preset period T-1, and the first threshold value is smaller than the second threshold value and smaller than the third threshold value.
16. The apparatus according to claim 14 or 15, wherein the processor is specifically configured to:
Determining a first spectrum efficiency based on channel quality indication CQI reported by the terminal equipment;
determining a third spectral efficiency adjustment;
determining a second spectral efficiency based on the first spectral efficiency, the third spectral efficiency adjustment, and the first spectral efficiency adjustment;
and determining the MCS level according to the second frequency spectrum efficiency.
17. The apparatus of claim 16, wherein the processor is specifically configured to:
in the preset period T, determining the positive feedback ACK times and negative feedback NACK times of the terminal equipment in the same terminal equipment type;
and determining the third spectrum efficiency adjustment amount according to the ACK times and the NACK times.
18. The apparatus of claim 17, wherein the root processor is specifically configured to:
if the negative feedback duty ratio is larger than a fourth threshold value, reducing the fourth spectrum efficiency adjustment amount by a second spectrum efficiency reduction amount to obtain the third spectrum efficiency adjustment amount;
if the negative feedback duty ratio is smaller than or equal to the fourth threshold value and the positive feedback duty ratio is larger than a fifth threshold value, increasing the fourth spectrum efficiency adjustment amount by a second spectrum efficiency improvement amount to obtain the fourth spectrum efficiency adjustment amount;
If the positive feedback duty ratio is smaller than or equal to the fifth threshold value, the fourth frequency spectrum efficiency adjustment amount is used as the third frequency spectrum efficiency adjustment amount;
the negative feedback duty ratio is the ratio of the NACK times to the positive and negative feedback times, the positive feedback duty ratio is the ratio of the ACK times to the positive and negative feedback times, and the positive and negative feedback times are the sum of the ACK times and the NACK times; the fourth spectral efficiency adjustment amount is a third spectral efficiency adjustment amount determined in a preset period T-1.
19. The device of claim 17, wherein the terminal device type is determined based on at least one of the following information:
the relative positions of the terminal equipment and the network equipment;
the number of transmission layers of the terminal equipment;
the channel environment of the terminal equipment;
and the transmission mode of the terminal equipment.
20. The apparatus of claim 16, wherein the processor is specifically configured to:
and taking the sum of the first spectral efficiency, the third spectral efficiency adjustment amount and the first spectral efficiency adjustment amount as the second spectral efficiency.
21. The apparatus of claim 13, wherein the processor is specifically configured to:
and in the preset period T, determining the downlink resource utilization rate according to the sum of the number of the downlink PRBs corresponding to each effective downlink time slot and the sum of the number of the downlink PRBs corresponding to each scheduled effective downlink time slot.
22. The apparatus of claim 21, wherein the processor is configured to perform operations comprising,
determining the utilization rate of the downlink resources by using the following formula:
wherein dl_resource_use is a downlink resource utilization rate, dl_slot_num_t is the number of valid downlink time slots in the preset period T, and the dl_resource_use is a downlink resource utilization rateThe number of downlink PRBs when the time slot is j, wherein L is the number of the effective downlink time slots scheduled in the preset period T, and +.>And the number of the downlink PRBs scheduled for the ith time.
23. The apparatus of claim 13, 21 or 22, wherein the processor is further configured to:
and determining the first transmitting power of the terminal equipment according to the downlink resource utilization rate.
24. The apparatus of claim 23, wherein the processor is specifically configured to:
If the downlink resource utilization rate is smaller than a sixth threshold value, increasing the current transmission power by a second transmission power to obtain the first transmission power, wherein the current transmission power is the transmission power of the terminal equipment in scheduling.
25. A communication device, comprising:
a first determining unit for determining the downlink resource utilization rate of the cell in a preset period T;
and the second determining unit determines the MCS level of the terminal equipment according to the downlink resource utilization rate.
26. A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program for causing the processor to perform the method of any one of claims 1 to 12.
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