CN113727294B - Communication method and device - Google Patents
Communication method and device Download PDFInfo
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- CN113727294B CN113727294B CN202110926665.5A CN202110926665A CN113727294B CN 113727294 B CN113727294 B CN 113727294B CN 202110926665 A CN202110926665 A CN 202110926665A CN 113727294 B CN113727294 B CN 113727294B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/33—Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention provides a communication method and a communication device, relates to the technical field of communication, and can improve the energy-saving efficiency of a 5G network indoor coverage system. The method comprises the following steps: acquiring the physical layer service volume of a remote unit in a first time length; determining an energy-saving scheme of the remote unit according to the physical layer traffic within the first duration, wherein the energy-saving scheme comprises a carrier frequency turn-off scheme, a radio frequency channel turn-off scheme or a sleep scheme; a power saving scheme for the remote unit is implemented.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a communication method and apparatus.
Background
With the further development of 5G networks, the demand for indoor coverage of 5G networks is further increased. The 5G network indoor coverage system is composed of a baseband unit, a convergence unit and a remote unit, wherein in the system, the baseband unit detects the traffic of the system, and when the traffic of the system is small, an energy-saving scheme is executed on the system, so that the energy-saving requirement of the 5G network indoor coverage system is met. However, the above energy saving scheme has a problem of low energy saving efficiency.
Disclosure of Invention
The invention provides a communication method and a communication device, which can improve the energy-saving efficiency of a 5G network indoor coverage system.
In a first aspect, the present application provides a communication method, including: acquiring the physical layer service volume of a remote unit in a first time length; determining an energy-saving scheme of the remote unit according to the physical layer traffic within the first duration, wherein the energy-saving scheme comprises a carrier frequency turn-off scheme, a radio frequency channel turn-off scheme or a sleep scheme; a power saving scheme for the remote unit is implemented.
Compared with the energy-saving scheme determined according to the traffic of the 5G network indoor coverage system, the technical scheme provided by the application determines the energy-saving scheme of the remote unit according to the physical layer traffic between the physical layer of the remote unit and the Media Access Control (MAC) layer of the convergence unit, and reduces the detection granularity of the traffic, so that the processing granularity of the energy-saving scheme of the 5G network indoor coverage system is reduced, the energy-saving scheme of the 5G network indoor coverage system is more accurate, and the energy-saving efficiency of the 5G network indoor coverage system is improved.
As a possible implementation manner, the carrier frequency turn-off scheme is used to enable the remote unit to adjust M subcarriers used for transmitting data to N subcarriers, where M and N are positive integers, and M is greater than N; the radio frequency channel turn-off scheme is used for enabling the remote unit to adjust K radio frequency channels in work to P radio frequency channels, wherein K and P are positive integers, and K is larger than P; the sleep scheme is used to cause the remote unit to turn off all radio frequency channels.
As one possible implementation, determining a power saving scheme for the remote unit based on the physical layer traffic over the first time period comprises: determining that the energy-saving scheme is a carrier frequency turn-off scheme under the condition that the physical layer service volume in the first time length is smaller than a first threshold and is larger than or equal to a second threshold; or, when the physical layer traffic volume in the first time period is less than the second threshold and greater than or equal to the third threshold, determining that the energy-saving scheme is a radio frequency channel turn-off scheme; or, determining that the energy-saving scheme is a sleep scheme under the condition that the physical layer traffic volume in the first time period is smaller than a third threshold; wherein the first threshold is greater than the second threshold, and the second threshold is greater than the third threshold.
As a possible implementation manner, acquiring the physical layer traffic of the remote unit in the first duration includes: acquiring the physical layer service volume of the remote unit on each time slot in a first time length; the physical layer traffic volume of the remote unit in the first time duration is determined based on the physical layer traffic volume of the remote unit in each time slot in the first time duration.
As a possible implementation, the physical layer traffic volume on a timeslot can be determined according to the following: acquiring configuration parameters of the remote unit on the time slot, wherein the configuration parameters comprise the number of physical resource blocks, the maximum modulation order, the maximum coding efficiency and the number of data streams corresponding to the remote unit on the time slot; and determining the physical layer service volume on the time slot according to the configuration parameters of the remote unit on the time slot. Therefore, the physical layer service volume of the remote unit can be determined according to the configuration parameters of the remote unit on each time slot, so that the physical layer service volume of the remote unit can be more accurately determined, and the accuracy of the energy-saving scheme of the 5G network indoor coverage system is improved.
As a possible implementation manner, the determining, according to the configuration parameter of the remote unit on the timeslot, the physical layer traffic on the timeslot includes: according to the formula
Determining physical layer traffic volume of the remote unit on the time slot; wherein DL is the physical layer traffic of the remote unit in the time slot, J is the number of carriers of the remote unit in the time slot, and/or>
For the number of data streams in the time slot for the remote unit, <' > based on the time slot>
A maximum modulation order for the remote unit at the time slot; f. of (j) Is a conversion factor; r max For maximum coding efficiency>
For the number of physical resource blocks, T, of the remote unit on the slot s For the remote unit in the time slot for a period, OH, corresponding to one OFDM symbol (j) Is a traffic overhead coefficient.
As one possible implementation, after executing the power saving scheme of the remote unit, the method further comprises: determining an energy-saving recovery scheme of the remote unit according to the physical layer traffic within the second duration, wherein the energy-saving scheme comprises a carrier frequency recovery scheme or a radio frequency channel recovery scheme; a carrier frequency recovery scheme, configured to enable a remote unit to adjust H subcarriers used for transmitting data to L subcarriers, where H and L are positive integers, and L is greater than H; and the radio frequency channel recovery scheme is used for enabling the remote unit to adjust S radio frequency channels in work to T radio frequency channels, wherein S and T are positive integers, and T is greater than S.
Therefore, according to the technical scheme provided by the application, the energy-saving recovery scheme of the remote unit is determined according to the physical layer traffic between the physical layer of the remote unit and the MAC layer of the convergence unit, and the detection granularity of the traffic is reduced, so that the processing granularity of the energy-saving recovery scheme of the 5G network indoor coverage system is reduced, the energy-saving recovery scheme of the 5G network indoor coverage system is more accurate, and the energy-saving efficiency of the 5G network indoor coverage system is improved.
As a possible implementation manner, determining a power saving recovery scheme of the remote unit according to the physical layer traffic in the second duration includes: determining that the energy-saving recovery scheme is a radio frequency channel recovery scheme under the condition that the physical layer traffic volume in the second duration is greater than a fourth threshold and less than or equal to a fifth threshold; or, determining that the energy-saving recovery scheme is the carrier frequency recovery scheme under the condition that the physical layer traffic volume in the second duration is greater than the fifth threshold; wherein the fifth threshold is greater than the fourth threshold.
In a second aspect, the present application provides a communication apparatus, comprising: the device comprises an acquisition module and a processing module; an obtaining module, configured to obtain a physical layer traffic volume of a remote unit within a first duration; a processing module, configured to determine an energy saving scheme of the remote unit according to the physical layer traffic in the first time period, where the energy saving scheme includes a carrier frequency turn-off scheme, a radio frequency channel turn-off scheme, or a sleep scheme; a power saving scheme for the remote unit is implemented.
As a possible implementation manner, the carrier frequency turn-off scheme is used to enable the remote unit to adjust M subcarriers used for transmitting data to N subcarriers, where M and N are positive integers, and M is greater than N; the radio frequency channel turn-off scheme is used for enabling the remote unit to adjust K radio frequency channels in work to P radio frequency channels, wherein K and P are positive integers, and K is larger than P; the sleep scheme is used to cause the remote unit to turn off all radio frequency channels.
As a possible implementation manner, the processing module is specifically configured to determine that the energy saving scheme is a carrier frequency turn-off scheme when the physical layer traffic volume within the first time period is smaller than a first threshold and is greater than or equal to a second threshold; or, when the physical layer traffic volume in the first time period is less than the second threshold and greater than or equal to the third threshold, determining that the energy-saving scheme is a radio frequency channel turn-off scheme; or, determining that the energy-saving scheme is a sleep scheme under the condition that the physical layer traffic volume in the first time period is smaller than a third threshold; wherein the first threshold is greater than the second threshold, and the second threshold is greater than the third threshold.
As a possible implementation manner, the obtaining module is specifically configured to obtain a physical layer traffic volume of the remote unit in each time slot within a first duration; and the processing module is specifically configured to determine the physical layer traffic volume of the remote unit in the first time duration according to the physical layer traffic volume of the remote unit in each time slot in the first time duration.
As a possible implementation manner, the obtaining module is specifically configured to obtain configuration parameters of the remote unit on the timeslot, where the configuration parameters include the number of physical resource blocks, a maximum modulation order, a maximum coding efficiency, and a number of data streams, which correspond to the remote unit on the timeslot; and a processing module, configured to determine, according to the configuration parameter of the remote unit on the timeslot, a physical layer traffic volume on the timeslot.
As a possible implementation, the processing module is specifically configured to operate according to a formula
Determining physical layer traffic volume of the remote unit on the time slot; wherein DL is the physical layer traffic of the remote unit in the time slot, J is the number of carriers of the remote unit in the time slot, and>
for the number of data streams of the remote unit on the time slot, ->
A maximum modulation order for the remote unit at the time slot; f. of (j) Is a conversion factor; r max For maximum coding efficiency>
Is a remote unit atNumber of physical resource blocks on the slot, T s For the remote unit in the time slot for a period, OH, corresponding to one OFDM symbol (j) Is a traffic overhead coefficient.
As a possible implementation manner, the processing module is further configured to determine an energy saving recovery scheme of the remote unit according to the physical layer traffic in the second duration, where the energy saving scheme includes a carrier frequency recovery scheme or a radio frequency channel recovery scheme; a carrier frequency recovery scheme, configured to enable a remote unit to adjust H subcarriers used for transmitting data to L subcarriers, where H and L are positive integers, and L is greater than H; the radio frequency channel recovery scheme is used for enabling a remote unit to adjust S radio frequency channels in work to T radio frequency channels, wherein S and T are positive integers, and T is larger than S.
As a possible implementation manner, the processing module is specifically configured to determine that the energy saving recovery scheme is a radio frequency channel recovery scheme when the physical layer traffic volume in the second duration is greater than a fourth threshold and less than or equal to a fifth threshold; or, determining that the energy-saving recovery scheme is the carrier frequency recovery scheme under the condition that the physical layer traffic volume in the second duration is greater than the fifth threshold; wherein the fifth threshold is greater than the fourth threshold.
In a third aspect, the present application provides a communication device, which includes a processor and a communication interface, where the processor is configured to perform a processing operation in the method according to the first aspect and any one of the possible implementations of the first aspect, and the communication interface is configured to perform a communication operation in the method according to the first aspect and any one of the possible implementations of the first aspect.
In a fourth aspect, the present application provides a communication system comprising the communication device of the second or third aspect and possible implementations thereof.
In a fifth aspect, the present application provides a computer-readable storage medium, characterized in that the computer-readable storage medium comprises computer instructions which, when run on a computer, cause the computer to perform the method provided in the first aspect and possible implementations.
In a sixth aspect, the present invention provides a computer program product directly loadable into a memory and containing software code, which when loaded and executed by a computer is able to carry out the method as provided in the first aspect and possible implementations.
It should be noted that all or part of the computer instructions may be stored on the computer readable storage medium. The computer readable storage medium may be packaged with the processor of the control device or packaged separately from the processor of the control device, which is not limited in this application.
For the description of the second aspect to the sixth aspect in the present application, reference may be made to the detailed description of the first aspect; in addition, for the beneficial effects described in the second aspect to the sixth aspect, reference may be made to the beneficial effect analysis of the first aspect, and details are not repeated here.
Drawings
Fig. 1 is a schematic network architecture diagram of a 5G network indoor coverage system according to an embodiment of the present disclosure;
fig. 2 is a schematic network architecture diagram of another 5G network indoor coverage system according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a communication device according to an embodiment of the present application;
fig. 4 is a flowchart illustrating a communication method according to an embodiment of the present application;
fig. 5 is a flowchart illustrating another communication method according to an embodiment of the present application;
fig. 6 is a flowchart illustrating another communication method according to an embodiment of the present application;
fig. 7 is a flowchart illustrating another communication method according to an embodiment of the present application;
fig. 8 is a flowchart illustrating another communication method according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of another communication device according to an embodiment of the present application;
fig. 10 is a schematic structural diagram of another communication device according to an embodiment of the present application.
Detailed Description
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone.
The terms "first" and "second" and the like in the description and drawings of the present application are used for distinguishing different objects or for distinguishing different processes for the same object, and are not used for describing a specific order of the objects.
Furthermore, the terms "including" and "having," and any variations thereof, as referred to in the description of the present application, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
It should be noted that in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
In the description of the present application, the meaning of "a plurality" means two or more unless otherwise specified.
Fig. 1 shows a network architecture of a 5G network indoor coverage system, which is composed of a baseband unit, a convergence unit, and a remote unit. The baseband unit 111 communicates with the 5G macro station by wire or wirelessly. The baseband unit 111 communicates with the convergence unit 121, the convergence unit 122, the convergence unit 123, and the convergence unit 124 through optical fibers, the convergence unit 121 communicates with the remote unit 131, the remote unit 132, and the remote unit 133 through optical fibers or optical-electrical composite cables, and the convergence unit 125 communicates with the remote unit 134, the remote unit 135, and the remote unit 136 through optical fibers or optical-electrical composite cables. Remote unit 131, remote unit 132, remote unit 133, remote unit 134, remote unit 135, and remote unit 136 implement communication with terminals in their respective coverage areas through built-in antennas, thereby implementing indoor coverage of the 5G network.
As described in the background art, the existing energy-saving scheme has the problem of low energy-saving efficiency. For example, in the 5G network indoor coverage system shown in fig. 1, it is assumed that there are 32 terminals in the system, and each of the 32 terminals is connected to the network through the remote unit 131 to implement service requirements. On the one hand, when the traffic of 32 terminals in the system is small, the power saving scheme may be to turn off all remote units in the system. On the other hand, when the traffic volume of 32 terminals in the system is large, the energy saving scheme may be fully operated for 6 remote units in the system to meet the traffic volume requirement of 32 terminals. However, the remote units 132, 133, 134, 135, 136 are not connected to the terminal, and are fully operated, which inevitably results in energy waste, and thus the energy saving efficiency of the 5G network indoor coverage system is reduced.
In order to solve the above technical problem, an embodiment of the present application provides a communication method. The technical solution provided in the embodiments of the present application may be applied to various communication systems, for example, a New Radio (NR) communication system adopting a 5G communication technology, a future evolution system or a multiple communication convergence system, and the like. The technical scheme provided by the application can be applied to various application scenes, for example, indoor blind area scenes such as newly-built large buildings, parking lots, office buildings, hotels, apartments and the like, indoor places such as stations, airports, shopping malls, gymnasiums, shopping centers and the like with higher telephone traffic, indoor scenes which are easy to frequently switch and the like. As can be known to those skilled in the art, with the evolution of network architecture and the emergence of new service scenarios, the technical solution provided in the embodiments of the present application is also applicable to similar technical problems.
Based on the 5G network indoor coverage system shown in fig. 1, as shown in fig. 2, the embodiment of the present application provides a reference architecture of a 5G network. The baseband unit is responsible for data processing of a Radio Resource Control (RRC) layer and a Packet Data Convergence (PDCP) layer. The convergence unit is responsible for data processing of a Radio Link Control (RLC) layer and a MAC layer. The remote unit is responsible for data processing of a Physical (PHY) layer and a Radio Frequency (RF) layer, wherein the PHY layer may be divided into a High-PHY layer and a Low-PHY layer. The remote unit also includes an antenna for transmitting and receiving signals.
In order to implement the communication method provided in the embodiment of the present application, an embodiment of the present application provides a remote unit for executing the communication method described above, and fig. 3 is a schematic structural diagram of a remote unit provided in the embodiment of the present application. As shown in fig. 3, the remote unit includes an ethernet interface 210, a digital signal processing module 220, a radio frequency processing module 230, and a synchronization module 240. The ethernet interface 210 is used for connecting with the aggregation unit. And a digital signal processing module 220 for processing the digital signal. And the radio frequency processing module 230 is configured to implement radio frequency signal coverage in a coverage range and communicate with a terminal. The synchronization module 240 is used for signal synchronization.
The technical solutions provided in the embodiments of the present application are described below with reference to other drawings in the present application.
Fig. 4 is a flowchart illustrating a communication method according to an embodiment of the present application, and as shown in fig. 4, the method includes: S301-S303.
S301, acquiring the physical layer service volume of the remote unit in the first time length.
The physical layer traffic is the traffic between the PHY layer of the remote unit and the MAC layer of the convergence unit.
In some embodiments, the physical layer traffic of the remote unit may be physical layer traffic corresponding to upper layer traffic in the traffic of the remote unit. For example, the physical layer traffic of the remote unit may be the physical layer traffic corresponding to the uplink traffic of the terminal within the coverage of the remote unit.
In some embodiments, the physical layer traffic of the remote unit may be physical layer traffic corresponding to downlink traffic in the traffic of the remote unit. For example, the physical layer traffic of the remote unit may be the physical layer traffic corresponding to the downlink traffic of the terminal within the coverage of the remote unit.
In some embodiments, the physical layer traffic of the remote unit may be a sum of physical layer traffic corresponding to upper traffic and physical layer traffic corresponding to lower traffic in the traffic of the remote unit. For example, the physical layer traffic of the remote unit may be the sum of the physical layer traffic corresponding to the uplink service and the physical layer traffic corresponding to the downlink service of the terminal within the coverage of the remote unit.
In the embodiment of the present application, the first duration may be preset, or may be set by a user. For example, the first duration may be 5 seconds or 10 seconds, which is not limited.
As a possible implementation manner, the remote unit may receive first information sent by the baseband unit, where the first information is used to instruct the remote unit to acquire physical layer traffic in the first time period. In response to the first message, the remote unit obtains the physical layer traffic within the first duration from the time the first message is received.
As another possible implementation, the remote unit may periodically obtain the physical layer traffic for the first time period. Thereby enabling real-time monitoring of physical layer traffic at the remote unit. For example, the duration of the acquisition period of the physical layer traffic may be 1 minute or 2 minutes, which is not limited in this respect.
S302, determining an energy-saving scheme of the remote unit according to the physical layer service volume in the first time length.
The energy-saving scheme comprises a carrier frequency turn-off scheme, a radio frequency channel turn-off scheme or a sleep scheme.
In some embodiments, the carrier frequency turn-off scheme is configured to cause the remote unit to adjust M subcarriers used for transmitting data to N subcarriers, M and N are both positive integers, and M is greater than N.
In some embodiments, the radio frequency channel shutdown scheme is configured to enable the remote unit to adjust K radio frequency channels in operation to P radio frequency channels, where K and P are positive integers and K is greater than P.
In some embodiments, a sleep scheme is used to cause the remote unit to turn off all radio frequency channels.
As a possible implementation manner, as shown in fig. 5, the energy saving scheme of the remote unit is determined according to the physical layer traffic in the first duration, which may be specifically implemented as A1 to A3.
A1, under the condition that the physical layer service volume in the first duration is smaller than a first threshold and is larger than or equal to a second threshold, determining that the energy-saving scheme is a carrier frequency turn-off scheme.
For example, as shown in fig. 3, it is assumed that the number of subcarriers in a multicarrier signal used for transmitting data in a channel formed by the data conversion circuit 231, the power amplifier circuit 232, and the antenna 233 is 6. In the case that the physical layer traffic volume in the first duration is determined to be less than the first threshold and greater than or equal to the second threshold, the remote unit may adjust 6 subcarriers in the multicarrier signal used for transmitting data to 4 subcarriers.
And A2, under the condition that the physical layer service volume in the first time length is smaller than a second threshold and is larger than or equal to a third threshold, determining that the energy-saving scheme is a radio frequency channel turn-off scheme.
For example, as shown in fig. 3, it is assumed that there are multiple rf channels, such as an rf channel composed of the data conversion circuit 231, the power amplifier circuit 232, and the antenna 233, and an rf channel composed of the data conversion circuit 241, the power amplifier circuit 242, and the antenna 243. When the physical layer traffic volume in the first duration is determined to be less than the second threshold and greater than or equal to the third threshold, the remote unit may close the radio frequency channel formed by the data conversion circuit 231, the power amplifier circuit 232, and the antenna 233, so as to reduce the number of channels used for working in the remote unit.
And A3, under the condition that the physical layer traffic in the first duration is smaller than a third threshold, determining that the energy-saving scheme is a sleep scheme.
For example, as shown in fig. 3, in a case that the physical layer traffic in the first duration is determined to be less than the third threshold, the remote unit may close all radio frequency channels, such as the radio frequency channel composed of the data conversion circuit 231, the power amplifier circuit 232, and the antenna 233, and the radio frequency channel composed of the data conversion circuit 241, the power amplifier circuit 242, and the antenna 243, and only keep the synchronization module 240 and the like to operate, so that the remote unit enters the sleep state.
It should be noted that the first threshold is greater than the second threshold, and the second threshold is greater than the third threshold.
S303, executing the energy saving scheme of the remote unit.
Based on the embodiment shown in fig. 5, according to the technical solution provided in the embodiment of the present application, the energy saving scheme of the remote unit is determined according to the physical layer traffic between the physical layer of the remote unit and the MAC layer of the convergence unit, and the detection granularity of the traffic is reduced, so that the processing granularity of the energy saving scheme of the 5G network indoor coverage system is reduced, the energy saving scheme of the 5G network indoor coverage system is more accurate, and the energy saving efficiency of the 5G network indoor coverage system is improved.
Optionally, as shown in fig. 6, step S301 may be implemented as the following steps:
s3011, obtaining physical layer traffic of the remote unit in each timeslot in the first duration.
As a possible implementation manner, the remote unit may obtain a configuration parameter of the remote unit in each time slot within the first time duration, and determine, according to the configuration parameter of the remote unit in each time slot within the first time duration, a physical layer traffic volume of the remote unit in each time slot within a preset time.
The configuration parameters of the remote unit may include the number of physical resource blocks PRB corresponding to each timeslot of the remote unit in the first duration, and the maximum modulation order
Maximum coding efficiency R max And a number of data streams>
In some embodiments, the remote unit may send first request information to the baseband unit, where the first request information is used to request the baseband unit to send, to the remote unit, the number of PRBs corresponding to the remote unit in each time slot within the first duration. Thus, the remote unit may obtain the number of PRBs per slot of the remote unit in the first duration. For example, if the subcarrier bandwidth is 30kHz and the base station side bandwidth is 50MHz, the total number of PRBs corresponding to the base station side is 133. For example, when the subcarrier bandwidth is 30kHz and the base station side bandwidth is 100MHz, the total number of PRBs corresponding to the base station side is 273.
In some embodiments, the remote unit may receive Channel State Information (CSI) from the terminal and determine the number of data streams for the remote unit in the time slot based on the CSI. For example, the remote unit may determine the number of data streams of the remote unit on the timeslot according to a value of the rank indication RI carried in the CSI.
In some embodiments, the remote unit may receive channel state information, CSI, from the terminal, determine a maximum modulation order for the remote unit on the time slot, and a maximum coding efficiency based on the CSI. The CSI may include a Channel Quality Indicator (CQI), and the CQI is used to determine a value of a Modulation and Coding Scheme (MCS). For example, the remote unit may determine the value of the MCS according to the CQI carried in the CSI, and determine the maximum modulation order of the remote unit on the timeslot according to the value of the MCS and the MCS table
And maximum coding efficiency R max 。
The MCS table may include a value of the MCS and a corresponding relationship between the modulation order and the maximum code rate. Illustratively, the MCS table may be pre-stored in the memory of the remote unit so that the remote unit retrieves the MCS table directly from the memory. As yet another example, the MCS table can be pre-stored in the baseband unit so that the remote unit can send the first message to the baseband unitAnd second request information, wherein the second request information is used for instructing the baseband unit to send the MCS table to the remote unit, so that the remote unit can acquire the MCS table from the baseband unit. For example, according to the MCS table, the maximum modulation order in the case of 256-QAM modulation scheme
Is 8; in the case of a 64-QAM modulation mode, the maximum modulation order->
Is 6.
Illustratively, the physical layer traffic volume on a time slot may also be based on a formula
And (4) determining.
Wherein DL is the physical layer traffic of the remote unit in the time slot, J is the number of carriers of the remote unit in the time slot,
for the number of data streams of the remote unit on the time slot, ->
A maximum modulation order for the remote unit at the time slot; f. of (j) Is a conversion factor; r is max For maximum coding efficiency, is selected>
For the number of physical resource blocks, T, of the remote unit on the slot s For the remote unit in the time slot for a period, OH, corresponding to one OFDM symbol (j) Is a traffic overhead coefficient.
In some embodiments, the scaling factor f (j) The value of (c) can be determined according to the configuration mode of the frame structure. Illustratively, the scaling factor f (j) The values of (a) can be determined according to table 1. For example, in a 2.5ms double period, the scaling factor f corresponding to the downlink traffic (j) The value was 64.29%. Also for example, in2.5ms double period, conversion factor f corresponding to uplink service (j) The value was 32.86%.
TABLE 1
It should be noted that the service overhead factor OH (j) May be determined according to the service type. For example, the service overhead coefficient corresponding to the uplink service is 0.14, and the service overhead coefficient corresponding to the downlink service is 0.08.
Illustratively, assume a frame structure of 2.5ms double period, single carrier J =1, number of data streams in one slot
Conversion factor f (j) =0.6429, an MCS value of 27, is determined on the basis of the MCS table, based on>
R max ＝948/1024，
OH (j) =0.14, then the physical layer traffic DL =1502 for the remote unit on that time slot.
S3012, determining the physical layer traffic of the remote unit in the first time duration according to the physical layer traffic of the remote unit in each time slot in the first time duration.
As a possible implementation manner, the remote unit may determine, according to the physical layer traffic corresponding to the downlink service in the physical layer traffic of the remote unit in each time slot within the first time duration, the physical layer traffic of the remote unit within the first time duration.
As a possible implementation manner, the remote unit may determine, as the physical layer traffic volume of the remote unit in the first duration, according to the physical layer traffic volume corresponding to the uplink service in the physical layer traffic volume of the remote unit in each time slot in the first duration.
As a possible implementation manner, the remote unit may determine the physical layer traffic volume of the remote unit in the first duration based on the physical layer traffic volume corresponding to the downlink service and the physical layer traffic volume corresponding to the uplink service in the physical layer traffic volume of the remote unit in each time slot in the first duration.
For example, the remote unit may determine the physical layer traffic volume of the remote unit in the first duration according to the physical layer traffic volume corresponding to the downlink service and the weight coefficient corresponding to the physical layer traffic volume.
Based on the embodiment shown in fig. 6, the technical solution provided in the embodiment of the present application may determine the physical layer traffic volume of the remote unit according to the configuration parameter of the remote unit on each timeslot, so that the determination of the physical layer traffic volume of the remote unit is more accurate, and the accuracy of the energy saving scheme of the 5G network indoor coverage system is further improved.
Optionally, as shown in fig. 7, an embodiment of the present application provides a flowchart of another communication method, where the method includes: S401-S403.
S401, acquiring the physical layer service volume of the remote unit in the second time length.
The second time period may be preset or may be set by the user. For example, the second time period may be 5 seconds or 10 seconds, which is not limited.
As a possible implementation manner, the remote unit may receive second information sent by the baseband unit, where the second information is used to instruct the remote unit to acquire the physical layer traffic within the second duration. And responding to the second information, and the remote unit acquires the physical layer service volume in the second time length from the moment of receiving the second information.
As another possible implementation, the remote unit may periodically obtain the physical layer traffic for the second duration. Thereby enabling real-time monitoring of physical layer traffic at the remote unit. For example, the duration of the acquisition period of the physical layer traffic may be 1 minute or 2 minutes, which is not limited in this respect.
S402, determining an energy-saving recovery scheme of the remote unit according to the physical layer traffic in the second time length.
The energy-saving scheme comprises a carrier frequency recovery scheme or a radio frequency channel recovery scheme.
In some embodiments, the carrier frequency recovery scheme is configured to enable a remote unit to adjust H subcarriers used for transmitting data to L subcarriers, where H and L are positive integers, and L is greater than H;
in some embodiments, the rf channel restoration scheme is configured to enable the remote unit to adjust S rf channels in operation to T rf channels, where S and T are positive integers and T is greater than S.
As a possible implementation manner, as shown in fig. 8, the energy saving scheme of the remote unit is determined according to the physical layer traffic in the first time period, and may be specifically implemented as B1-B2.
And B1, under the condition that the physical layer traffic volume in the second duration is greater than a fourth threshold and less than or equal to a fifth threshold, determining that the energy-saving recovery scheme is a radio frequency channel recovery scheme, wherein the fifth threshold is greater than the fourth threshold.
For example, as shown in fig. 3, it is assumed that there are multiple rf channels, such as an rf channel composed of the data conversion circuit 231, the power amplifier circuit 232, and the antenna 233, and an rf channel composed of the data conversion circuit 241, the power amplifier circuit 242, and the antenna 243. When the physical layer traffic volume in the second duration is determined to be greater than the fourth threshold and less than or equal to the fifth threshold, the remote unit may open a radio frequency channel formed by the data conversion circuit 231, the power amplifier circuit 232, and the antenna 233, so as to increase the number of channels used for working in the remote unit.
And B2, under the condition that the physical layer service volume in the second time length is greater than a fifth threshold value, determining that the energy-saving recovery scheme is a carrier frequency recovery scheme.
For example, as shown in fig. 3, it is assumed that the number of subcarriers in a multicarrier signal used for transmitting data in a channel formed by the data conversion circuit 231, the power amplifier circuit 232, and the antenna 233 is 4. In the case that the physical layer traffic volume in the second duration is determined to be greater than the fifth threshold, the remote unit may adjust 4 subcarriers in the multicarrier signal used for transmitting data to 6 subcarriers.
S403, executing the power saving recovery scheme of the remote unit.
Based on the embodiment shown in fig. 7, according to the technical solution provided in the embodiment of the present application, the energy saving recovery scheme of the remote unit is determined according to the physical layer traffic between the physical layer of the remote unit and the MAC layer of the convergence unit, and the detection granularity of the traffic is reduced, so that the processing granularity of the energy saving recovery scheme of the 5G network indoor coverage system is reduced, the energy saving recovery scheme of the 5G network indoor coverage system is more accurate, and the energy saving efficiency of the 5G network indoor coverage system is improved.
It can be seen that the foregoing describes the solution provided by the embodiments of the present application primarily from a methodological perspective. To implement the above functions, it includes hardware structures and/or software modules for performing the respective functions. Those of skill in the art will readily appreciate that the various illustrative modules and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiment of the present application, the communication apparatus may be divided into the functional modules according to the method example, for example, each functional module may be divided according to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. Optionally, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and another division manner may be provided in actual implementation.
Fig. 9 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device is used for improving the energy-saving efficiency of a 5G network indoor coverage system, for example, used for executing the communication method shown in fig. 4 and 7, and comprises the following steps: an acquisition module 501 and a processing module 502.
An obtaining module 501, configured to obtain a physical layer traffic volume of a remote unit in a first duration; a processing module 502, configured to determine an energy saving scheme of the remote unit according to the physical layer traffic in the first time period, where the energy saving scheme includes a carrier frequency turn-off scheme, a radio frequency channel turn-off scheme, or a sleep scheme; a power saving scheme for the remote unit is implemented.
As a possible implementation manner, the carrier frequency turn-off scheme is used to enable the remote unit to adjust M subcarriers used for transmitting data to N subcarriers, where M and N are positive integers, and M is greater than N; the radio frequency channel turn-off scheme is used for enabling the remote unit to adjust K radio frequency channels in work to P radio frequency channels, wherein K and P are positive integers, and K is larger than P; the sleep scheme is used to cause the remote unit to turn off all radio frequency channels.
As a possible implementation manner, the processing module 502 is specifically configured to determine that the energy saving scheme is a carrier frequency turn-off scheme when the physical layer traffic volume in the first time period is less than a first threshold and is greater than or equal to a second threshold; or, when the physical layer traffic volume in the first time period is less than the second threshold and greater than or equal to the third threshold, determining that the energy-saving scheme is a radio frequency channel turn-off scheme; or, determining that the energy-saving scheme is a sleep scheme under the condition that the physical layer traffic volume in the first time period is smaller than a third threshold; wherein the first threshold is greater than the second threshold, and the second threshold is greater than the third threshold.
As a possible implementation manner, the obtaining module 501 is specifically configured to obtain a physical layer traffic volume of a remote unit in each time slot within a first duration; the processing module 502 is specifically configured to determine the physical layer traffic volume of the remote unit in the first duration according to the physical layer traffic volume of the remote unit in each time slot in the first duration.
As a possible implementation manner, the obtaining module 501 is specifically configured to obtain configuration parameters of the remote unit on the timeslot, where the configuration parameters include the number of physical resource blocks, the maximum modulation order, the maximum coding efficiency, and the number of data streams that the remote unit corresponds to on the timeslot; the processing module 502 is specifically configured to determine the physical layer traffic volume on the timeslot according to the configuration parameter of the remote unit on the timeslot.
As a possible implementation, the processing module 502 is specifically configured to perform the following operations according to a formula
Determining physical layer traffic volume of the remote unit on the time slot; wherein DL is the physical layer traffic of the remote unit in the time slot, J is the number of carriers of the remote unit in the time slot, and/or>
For the number of data streams of the remote unit on the time slot, ->
A maximum modulation order for the remote unit at the time slot; f. of (j) Is a conversion factor; r max For maximum coding efficiency>
For the number of physical resource blocks, T, of the remote unit on the slot s For the remote unit in the time slot for a period, OH, corresponding to one OFDM symbol (j) Is a traffic overhead coefficient.
As a possible implementation manner, the processing module 502 is further configured to determine an energy saving recovery scheme of the remote unit according to the physical layer traffic volume in the second duration, where the energy saving scheme includes a carrier frequency recovery scheme or a radio frequency channel recovery scheme; a carrier frequency recovery scheme, configured to enable a remote unit to adjust H subcarriers used for transmitting data to L subcarriers, where H and L are positive integers, and L is greater than H; and the radio frequency channel recovery scheme is used for enabling the remote unit to adjust S radio frequency channels in work to T radio frequency channels, wherein S and T are positive integers, and T is greater than S.
As a possible implementation manner, the processing module is specifically configured to determine that the energy saving recovery scheme is a radio frequency channel recovery scheme when the physical layer traffic volume in the second duration is greater than a fourth threshold and less than or equal to a fifth threshold; or, determining that the energy-saving recovery scheme is the carrier frequency recovery scheme under the condition that the physical layer traffic volume in the second duration is greater than the fifth threshold; wherein the fifth threshold is greater than the fourth threshold.
The processing module 502 may be a processor or a controller, among others. Which may implement or execute the various illustrative logical blocks, modules, and circuits described in connection with the disclosure herein. A processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, a DSP and a microprocessor, or the like. The obtaining module 501 may be a transceiver circuit or a communication interface. The storage module may be a memory. When the processing module 502 is a processor, the obtaining module 501 is a communication interface, and the storage module is a memory, the communication device according to the embodiment of the present application may be the communication device shown in fig. 10.
As shown in fig. 10, the embodiment of the present invention further provides a schematic structural diagram of another communication apparatus, which includes a processor 602, a bus 603, and a communication interface 604; optionally, the communication device may further include a memory 601, the memory 601 is used for storing computer-executable instructions, and the processor 602 is connected to the memory 601 through a bus 603; when the communication device is operating, the processor 602 executes computer-executable instructions stored in the memory 601 to cause the communication device to perform the communication method provided by the above-described embodiments.
In particular implementations, processor 602 (602-1 and 602-2) may include one or more CPUs, such as CPU0 and CPU1 shown in FIG. 10, as one embodiment. And for one embodiment, the communications device may include multiple processors 602, such as processor 602-1 and processor 602-2 shown in fig. 10. Each of the processors 602 may be a single-Core Processor (CPU) or a multi-Core Processor (CPU). Processor 602 herein may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).
The memory 601 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disk read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disk, laser disk, optical disk, digital versatile disk, blu-ray disk, etc.), magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory 601 may be separate and coupled to the processor 602 by a bus 603. The memory 601 may also be integrated with the processor 602.
In some embodiments, the memory 601 is used for storing data in the present application and computer-executable instructions corresponding to software programs for executing the present application. The processor 602 may implement various functions of the communication device by running or executing software programs stored in the memory 601 and calling data stored in the memory 601.
The communication interface 604 may be any device, such as a transceiver, for communicating with other devices or communication networks, such as a control system, a Radio Access Network (RAN), a Wireless Local Area Network (WLAN), and the like. The communication interface 604 may include a receiving unit to implement a receiving function and a transmitting unit to implement a transmitting function.
The bus 603 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an extended ISA (enhanced industry standard architecture) bus, or the like. The bus 603 may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 10, but this is not intended to represent only one bus or type of bus.
Embodiments of the present invention further provide a computer-readable storage medium, where the computer-readable storage medium includes computer-executable instructions, and when the computer-executable instructions are executed on a computer, the computer is enabled to execute the communication method provided in the foregoing embodiments.
The embodiment of the present invention further provides a computer program product, which can be directly loaded into the memory and contains software codes, and after being loaded and executed by the computer, the computer program product can implement the communication method provided by the above embodiment.
Those skilled in the art will recognize that, in one or more of the examples described above, the functions described in this invention may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical function division, and there may be other division ways in actual implementation. For example, various elements or components may be combined or may be integrated into another device, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. Units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, may be located in one place, or may be distributed to a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit. The integrated unit, if implemented as a software functional unit and sold or used as a separate product, may be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially or partially contributed to by the prior art, or all or part of the technical solutions may be embodied in the form of a software product, where the software product is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. A method of communication, the method comprising:
acquiring the physical layer service volume of the remote unit on each time slot in a first time length;
determining the physical layer traffic volume of the remote unit in the first time duration according to the physical layer traffic volume of the remote unit in each time slot in the first time duration; wherein, the physical layer traffic volume on a time slot can be determined according to the following modes:
acquiring configuration parameters of the remote unit on the time slot, wherein the configuration parameters comprise the number of physical resource blocks, the maximum modulation order, the maximum coding efficiency and the number of data streams corresponding to the remote unit on the time slot;
according to the formula
Determining physical layer traffic volume of the remote unit on the time slot;
where DL is the physical layer traffic of the remote unit in the time slot, J is the number of carriers of the remote unit in the time slot,
for the number of data streams on that time slot for the remote unit,
a maximum modulation order for the remote unit at the time slot; f. of (j) Is a conversion factor; r max In order to maximize the coding efficiency of the video signal,
for the number of physical resource blocks, T, of the remote unit on the slot s For the remote unit in the time slot for a period, OH, corresponding to one OFDM symbol (j) Is a service overhead coefficient;
determining an energy-saving scheme of the remote unit according to the physical layer traffic within the first duration, wherein the energy-saving scheme comprises a carrier frequency turn-off scheme, a radio frequency channel turn-off scheme or a sleep scheme;
performing a power saving scheme for the remote unit.
2. The method of claim 1,
the carrier frequency turn-off scheme is used for enabling the remote unit to adjust M subcarriers used for transmitting data to N subcarriers, wherein M and N are positive integers, and M is larger than N;
the radio frequency channel turn-off scheme is used for enabling the remote unit to adjust K radio frequency channels in work to P radio frequency channels, wherein K and P are positive integers, and K is larger than P;
the sleep scheme is used to cause the remote unit to turn off all radio frequency channels.
3. The method of claim 1, wherein said determining a power saving scheme for said remote unit based on physical layer traffic for said first duration comprises:
when the physical layer service volume in the first time span is smaller than a first threshold value and is larger than or equal to a second threshold value, determining that the energy-saving scheme is a carrier frequency turn-off scheme; alternatively, the first and second electrodes may be,
determining that the energy-saving scheme is a radio frequency channel turn-off scheme under the condition that the physical layer traffic volume in the first time period is smaller than a second threshold and is larger than or equal to a third threshold; alternatively, the first and second electrodes may be,
determining that the energy-saving scheme is a sleep scheme under the condition that the physical layer traffic volume in the first time period is smaller than a third threshold;
wherein the first threshold is greater than the second threshold, and the second threshold is greater than the third threshold.
4. The method of any of claims 1-3, wherein after said performing the power saving scheme for the remote unit, the method further comprises:
determining an energy-saving recovery scheme of the remote unit according to the physical layer traffic within a second duration, wherein the energy-saving scheme comprises a carrier frequency recovery scheme or a radio frequency channel recovery scheme;
the carrier frequency recovery scheme is used for enabling the remote unit to adjust H subcarriers used for transmitting data to L subcarriers, wherein H and L are positive integers, and L is larger than H;
the radio frequency channel recovery scheme is used for enabling the remote unit to adjust S radio frequency channels in work to T radio frequency channels, wherein S and T are positive integers, and T is larger than S.
5. The method of claim 4, wherein said determining a power save recovery scheme for said remote unit based on physical layer traffic for a second duration comprises:
determining that the energy-saving recovery scheme is a radio frequency channel recovery scheme when the physical layer traffic volume in the second duration is greater than a fourth threshold and less than or equal to a fifth threshold; alternatively, the first and second electrodes may be,
determining that the energy-saving recovery scheme is a carrier frequency recovery scheme under the condition that the physical layer traffic volume in the second duration is greater than a fifth threshold; wherein the fifth threshold is greater than the fourth threshold.
6. A communication apparatus, characterized in that the communication apparatus comprises: the device comprises an acquisition module and a processing module;
the acquisition module is used for acquiring the physical layer service volume of the remote unit on each time slot in a first time length;
the processing module is configured to determine, according to the physical layer traffic volume of the remote unit in each time slot within the first duration, the physical layer traffic volume of the remote unit within the first duration; wherein, the physical layer traffic volume on a time slot can be determined according to the following modes:
acquiring configuration parameters of the remote unit on the time slot, wherein the configuration parameters comprise the number of physical resource blocks, the maximum modulation order, the maximum coding efficiency and the number of data streams, which correspond to the remote unit on the time slot;
according to the formula
Determining physical layer traffic volume of the remote unit on the time slot;
where DL is the physical layer traffic of the remote unit in the time slot, J is the number of carriers of the remote unit in the time slot,
for the number of data streams on that time slot for the remote unit,
a maximum modulation order for the remote unit at the time slot; f. of (j) Is a conversion factor; r is max In order to maximize the coding efficiency of the video signal,
for the number of physical resource blocks, T, of the remote unit on the slot s For the remote unit in the time slot for a period, OH, corresponding to one OFDM symbol (j) Is a service overhead coefficient;
the processing module is configured to determine an energy saving scheme of the remote unit according to the physical layer traffic in the first duration, where the energy saving scheme includes a carrier frequency turn-off scheme, a radio frequency channel turn-off scheme, or a sleep scheme; performing a power saving scheme for the remote unit.
7. A communication apparatus, characterized in that the communication apparatus comprises: a processor for performing processing operations in the communication method of any one of claims 1 to 5, and a communication interface for performing acquisition operations in the communication method of any one of claims 1 to 5.
8. A computer-readable storage medium, comprising computer instructions which, when run on a computer, cause the computer to perform the communication method of any one of claims 1 to 5.
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