CN106533515B - Antenna backspacing method and base station - Google Patents
Antenna backspacing method and base station Download PDFInfo
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- CN106533515B CN106533515B CN201610899492.1A CN201610899492A CN106533515B CN 106533515 B CN106533515 B CN 106533515B CN 201610899492 A CN201610899492 A CN 201610899492A CN 106533515 B CN106533515 B CN 106533515B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
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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
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
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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
Abstract
The invention relates to the field of wireless communication, in particular to an antenna backspacing method and a base station. The method comprises the steps that a base station determines the coverage grade of a terminal according to uplink information sent by the terminal; the base station determines the number of antennas for transmitting data to the terminal according to the coverage grade, wherein different coverage grades correspond to different numbers of antennas; and the base station adopts the number of antennas to send information to the terminal. In the embodiment of the invention, because the base station does not adopt the same number of antennas to carry out backspace when sending the downlink information to the terminals in the coverage area, the interference in the network can be reduced, and for the terminals which adopt a small number of antennas to receive, the consumption of the terminals in the network can be reduced due to the reduction of the demodulation times.
Description
Technical Field
The invention relates to the field of wireless communication, in particular to an antenna backspacing method and a base station.
Background
The wireless communication technology is characterized in that a signal propagation environment is complex, and co-channel Interference (CCI), Multiple Access Interference (MAI), intersymbol Interference (ISI) and multipath fading influence exist in a transmission process, so how to transmit a large-capacity, high-rate and high-accuracy wireless data service on a limited spectrum resource on the premise of the Interference is an urgent problem to be solved in a wireless communication system.
One of the current methods is to use a multi-antenna technology, which can only process the signal transmission and reception in the time domain, the frequency domain, and the code domain, as compared to a single-antenna technology, and can also process the spatial information of the signal, that is, in the process of processing the signal, the multi-antenna technology can be combined with the space domain in addition to the time domain and the frequency domain, for example, the multi-antenna is designed as an antenna array to improve the spectrum utilization rate and the power gain, thereby effectively increasing the system capacity and enhancing the system performance, and simultaneously, the multi-channel interference and the multi-access interference can be suppressed, and the multi-path fading can be resisted.
However, in an actual signal transmission process, in a low-rate scenario, the multi-antenna technology can achieve the effect of power gain, and can enhance downlink coverage, but downlink network interference is also deteriorated, so that a terminal receiving the signal needs to repeatedly demodulate repeated data, and power consumption of a part of terminals in a network is increased.
Disclosure of Invention
The embodiment of the invention provides an antenna backspacing method and a base station to solve the problems of increased in-network interference and increased in-network terminal power consumption caused by power gain in the multi-antenna technology in the existing low-speed scene.
In view of this, a first aspect of the present invention provides an antenna backoff method, in which a base station may set different antenna numbers according to different coverage levels of a terminal in different areas of a coverage area of the base station, after receiving uplink information sent by the terminal, the base station first determines the coverage level of the terminal according to the uplink information, then determines the number of antennas for sending downlink information to the terminal according to a relationship between the preset coverage level and the number of antennas, and finally sends the downlink information through the number of antennas.
It can be seen that, because the base station does not adopt the same number of antennas to perform backoff when sending downlink information to the terminals within the coverage area, for example, an antenna system composed of 4 antennas does not adopt 4 antennas for sending for all coverage classes, but differs according to the difference of the coverage classes, for example, one coverage class adopts 4 antennas for sending, and the other coverage class adopts 2 antennas for sending, this way can reduce the intra-network interference, and for the terminals receiving by using a small number of antennas, the consumption of the intra-network terminals can be reduced due to the reduction of the number of demodulation times.
In some embodiments, distances from different areas within the coverage of the base station to the base station are different, and at this time, the base station determines that the coverage level of the terminal passes through not only the uplink information but also the distance from the base station through the area, so the coverage level of a certain area is determined by the distance from the area to the base station and the uplink information together, for example, an area close to the base station and reflecting a higher sensitivity according to the uplink information is determined as an area with a high coverage level, and an area far from the base station and reflecting a lower sensitivity according to the uplink information is determined as an area with a low coverage level. By adopting the method, the coverage grade can be more accurately divided.
In some embodiments, a smaller number of antennas are used for transmission in areas with high coverage levels, and a larger number of antennas are used for transmission in areas with low coverage levels. For example, the coverage classes include a first coverage class and a second coverage class lower than the first coverage class, and the number of antennas in an area of the second coverage class is greater than that of antennas in an area of the first coverage class, so that different numbers of antennas are used for different coverage classes to achieve the purpose of reducing interference, and a terminal in an area with a high coverage class can reduce power consumption by reducing the number of demodulation times because the number of antennas used by a base station is small.
In some embodiments, the uplink information includes a downlink quality parameter acquired by the terminal or an uplink quality parameter detected by the terminal. The signal receiving situation of the current position of the terminal, such as channel quality, can be known through the downlink quality parameter or the uplink quality parameter, and the coverage grade can be accurately divided.
In some embodiments, the downlink quality parameter or both the downlink quality parameters include at least one of a Signal to Interference plus Noise Ratio (SINR), a Reference Signal Receiving Power (RSRP), and a Channel Quality Indicator (CQI). The current channel quality can be judged by at least one of the three parameters, so that the coverage level of the current terminal can be accurately determined.
In some embodiments, before the base station determines the coverage level of the terminal according to the uplink information sent by the terminal, the location of the terminal is determined, so as to determine a specific area of the terminal within the coverage of the base station.
In some embodiments, the base station may first detect a transmission scenario before determining the coverage level of the terminal, and perform subsequent operations only if the transmission scenario is detected to be a non-high rate.
In some embodiments, the base station may determine the number of antennas used for transmitting information to the terminal according to the coverage level by the base station first determining a user category according to the coverage level, where the relationship may be preset, for example, the user category may include a near point user and a far point user, and the coverage level may include a first coverage level and a second coverage level higher than the first coverage level, where the first coverage level may correspond to the near point user, the second coverage level may correspond to the far point user, and for the near point user, a smaller number of antennas may be used, and for the far point user, a larger number of antennas may be used.
In some embodiments, the base station also performs time-sharing scheduling for different user types. Interference within the network may be reduced.
In some embodiments, the user types include a near point user type and a far point user type, and the base station may perform scheduling on the far point user by using a frequency division or time division Cell Interference Coordination (ICIC) algorithm, so as to reduce Interference between the far point users.
A second aspect of the present invention provides a base station, which includes a processing module and a transceiver module, where the processing module is mainly configured to determine a coverage level of a terminal according to uplink information sent by the terminal, that is, the determination of the coverage level is determined by the uplink information sent by the terminal, and then the processing module allocates a number of antennas according to the coverage level, and then the transceiver module sends information to the terminal by using a set number of antennas.
In some embodiments, distances from different areas within the coverage area of the base station to the base station are different, and at this time, the processing module determines that the coverage grade of the terminal passes through not only the uplink information but also the distance from the area to the base station, so that the coverage grade of a certain area is determined by the distance from the area to the base station and the uplink information together, for example, an area close to the base station and reflecting a higher sensitivity according to the uplink information is determined as an area with a high coverage grade, and an area far from the base station and reflecting a lower sensitivity according to the uplink information is determined as an area with a low coverage grade. By adopting the method, the coverage grade can be more accurately divided.
In some embodiments, a smaller number of antennas are used for transmission in areas with high coverage levels, and a larger number of antennas are used for transmission in areas with low coverage levels. For example, the coverage classes include a first coverage class and a second coverage class lower than the first coverage class, and the number of antennas in an area of the second coverage class is greater than that of antennas in an area of the first coverage class, so that different numbers of antennas are used for different coverage classes to achieve the purpose of reducing interference, and a terminal in an area with a high coverage class can reduce power consumption by reducing the number of demodulation times because the number of antennas used by a base station is small.
In some embodiments, the uplink information includes a downlink quality parameter acquired by the terminal or an uplink quality parameter detected by the terminal. The signal receiving situation of the current position of the terminal, such as channel quality, can be known through the downlink quality parameter or the uplink quality parameter, and the coverage grade can be accurately divided.
In some embodiments, the downlink quality parameter or both comprise at least one of SINR, RSRP and CQI. The current channel quality can be judged by at least one of the three parameters, so that the coverage level of the current terminal can be accurately determined.
In some embodiments, before the processing module determines the coverage level of the terminal according to the uplink information sent by the terminal, the processing module may determine the location of the terminal first, so as to determine a specific area of the terminal within the coverage of the base station.
In some embodiments, before the processing module determines the coverage level of the terminal, the processing module may first detect a transmission scenario, and perform a subsequent operation only if the transmission scenario is detected to be non-high rate.
In some embodiments, the determining, by the processing module, the number of antennas used for sending information to the terminal according to the coverage level may be that a base station determines a user category according to the coverage level, where the relationship may be preset, for example, the user category may include a near point user and a far point user, and the coverage level may include a first coverage level and a second coverage level higher than the first coverage level, where the first coverage level may correspond to the near point user, the second coverage level may correspond to the far point user, and for the near point user, a smaller number of antennas may be used, and for the far point user, a larger number of antennas may be used.
In some embodiments, the processing module also schedules different user types in a time-sharing manner. Interference within the network may be reduced.
In some embodiments, the user types include a near point user type and a far point user type, and the processing module may perform scheduling on the far point user by using an ICIC algorithm of frequency division or time division, so as to reduce interference between the far point users.
Drawings
Fig. 1 is a schematic diagram of downlink information transmission in the present multi-antenna system;
fig. 2 is a diagram of an embodiment of an antenna backoff method according to an embodiment of the present invention.
Fig. 3 is a diagram of another embodiment of an antenna backoff method according to an embodiment of the present invention;
fig. 4 is a diagram of another embodiment of an antenna backoff method according to an embodiment of the present invention;
fig. 5 is a diagram of another embodiment of an antenna backoff method according to an embodiment of the present invention;
FIG. 6 is a diagram of one embodiment of a base station of an embodiment of the present invention;
fig. 7 is a diagram of another embodiment of a base station of an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides an antenna backspacing method and a base station to solve the problems of increased in-network interference and increased in-network terminal power consumption caused by power gain in the multi-antenna technology in the existing low-speed scene.
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following are detailed below.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein.
The power gain brought by the multi-antenna system function refers to the gain obtained by increasing the transmission power at the transmitting end. When multi-antenna transmission is used, for example, because there are n transmission channels, the total transmission power is equal to n times of that of single-antenna transmission, and then a power gain of 10lg (n) dB can be obtained. When the single antenna is used for transmitting, the transmission power can be increased, but the requirement on power amplification is increased. Because the cost and the power of the power amplifier are not in a linear increasing relationship, the effect of obtaining the power gain by adopting multi-antenna transmission is higher than that of improving the single-antenna transmission power. As shown in fig. 1, fig. 1 is a downlink schematic diagram of a multi-antenna system, where a downlink base station configures 4 antennas, the base station transmits data in a 4-antenna manner, and a terminal achieves a purpose of power gain by diversity reception.
The multi-antenna system is applied to the application scene of the internet of things mainly oriented to low speed, deep coverage, low power consumption and large connection, the power gain causes problems, the power consumption of the terminal in the scene of the internet of things is required to be as low as possible, in addition, strict requirements are also required on network interference, the multi-antenna inevitably enables the terminal in the network to be demodulated for many times, the power consumption is increased, and the interference among the terminals in the network is increased due to the power gain.
In view of the above, to solve the above problems, an embodiment of the present invention employs an antenna back-off method, please refer to fig. 2, where fig. 2 is a diagram of an embodiment of an antenna back-off method according to an embodiment of the present invention, and the method may include:
201. and the base station determines the coverage grade of the terminal according to the uplink information sent by the terminal.
In a multi-antenna scene, a terminal entering the coverage of a base station may send uplink information to the base station, or the terminal covered by the base station may periodically send uplink information to the base station, so that the base station can know the condition of the terminal in real time.
The coverage level is determined according to uplink information sent by the terminal, and the uplink information sent by the terminal may be a downlink quality parameter acquired by the terminal or an uplink quality parameter detected by the terminal, and the base station can determine the coverage level of the terminal according to the uplink quality parameter or the downlink quality parameter.
Optionally, the uplink quality parameter or the downlink quality parameter both include at least one of SINR, RSRP, and CQI, and it can be seen that, for the uplink information reported by the terminal, the uplink information may be at least one of SINR, RSRP, and CQI, where SINR is a ratio of the strength of the received useful signal to the strength of the received interference signal (noise and interference), and may reflect the quality of the signal; the RSRP is an average value of signal powers received on all resource elements carrying reference signals within a certain symbol in the 4G network, and is an important index for measuring the coverage rate of the wireless network of the system. The RSRP is an absolute value representing the strength of a received signal and can reflect the distance between a mobile station and a base station to a certain extent; the main factors influencing the CQI value are signal strength, signal-to-noise ratio, bit error rate, and other parameters, which can reflect the current channel quality.
202. And the base station determines the number of antennas for sending information to the terminal according to the coverage grade.
The different coverage levels correspond to different antenna numbers, the corresponding relationship may be stored in the base station in advance, and after the base station determines the coverage level of the terminal, the base station may determine the corresponding antenna number according to the coverage level.
Optionally, the step 202 may further include:
the base station determines the user category of the terminal according to the coverage grade;
and the base station determines the number of antennas for sending information to the terminal according to the user category.
It can be seen that the process of determining the number of antennas for transmitting information to the terminal by the base station can be roughly divided into two steps, that is, first, the user category of the terminal is determined according to the coverage grade, and the user category can be divided according to the distance from the terminal to the base station, for example, a near-point user with high coverage grade and a corresponding far-point user with low coverage grade; after determining whether the user category of the terminal is a near point user or a far point user, the number of antennas can be determined according to a preset corresponding relationship, for example, a larger number of antennas can be used for transmitting information for the far point user, and a smaller number of antennas can be used for transmitting information for the near point user, so that the power consumption of the near point user can be reduced.
It should be noted that the user types may be classified into two types according to the coverage grades, for example, the user types may be classified into three common situations of near point users, middle point users and far point users, and may also be classified into five grades of near point users, middle point users, far point users and far point users, and in practical situations, the user types may be different according to the coverage range of the base station and the different communication capacities that can be actually supported, and the user types are not limited herein.
In addition, under the condition that the total number of the antennas is fixed, the number ratios of the antennas respectively set for the near point user, the middle point user and the far point user are not necessarily the same, for example, the antenna system is a 4-antenna system, a single antenna can be set for the near point user, a 2-antenna can be set for the middle point user, and a 4-antenna can be set for the far point user, of course, a 2-antenna can also be set for the near point user, a 3-antenna can be set for the middle point user, and a 4-antenna can be set for the far point user, and the specific setting ratios are different according to different.
203. And the base station adopts the number of antennas to send information to the terminal.
It can be seen that after the number of antennas is determined, information is transmitted according to the corresponding number of antennas.
In addition, time division scheduling is also performed for terminals of different user types in the network to reduce interference among the terminals in the network, and frequency division or time division ICIC is also used for scheduling for a terminal of which the user type is a remote point user, wherein the ICIC controls inter-cell interference by managing wireless resources, and is a multi-cell wireless resource management function considering the conditions of resource use, load and the like in a plurality of cells. Specifically, ICIC restricts the use of radio resources in each cell in an inter-cell coordination manner, including restricting which time-frequency resources are available, or restricting the transmission power thereof on certain time-frequency resources. Thereby reducing interference between remote point users.
It should be noted that, if the terminal is in a motion state, the terminal needs to periodically report the downlink quality parameter or periodically detect the uplink quality parameter, and the base station dynamically adjusts the coverage level according to the uplink quality parameter or the downlink quality parameter, that is, the coverage level of the same terminal at different positions may change.
It can be seen that, by adopting the above-mentioned method, the base station does not adopt the same number of antennas for backoff when sending downlink information to the terminals within the coverage area, for example, an antenna system composed of 4 antennas does not adopt 4 antennas for sending for all coverage levels, but differs according to the difference of the coverage levels, for example, one coverage level can adopt 4 antennas for sending, and another coverage level adopts 2 antennas for sending, and this method can reduce the intra-network interference, and for the terminals receiving by using a small number of antennas, the consumption of the intra-network terminals can be reduced due to the reduction of the number of demodulation times.
The antenna back-off method according to the embodiment of the present invention is introduced above, and the method is described below with reference to fig. 3 by using an actual example, where fig. 3 is a diagram of another embodiment of the antenna back-off method according to the embodiment of the present invention, where the method includes a base station and three UEs, the number of antennas of the base station in the multi-antenna system is 4, and the user types are divided into near point users, middle point users, and far point users according to different distances from the base station, where the execution steps may include:
301. the base station determines whether the current cell is in a high-speed scenario, if so, the antenna back-off method in the embodiment shown in fig. 2 is not executed, and if not, step 302 is executed.
302. And the terminal reports the detected uplink quality parameters or the obtained downlink quality parameters to the base station.
303. The base station receives and judges the user type of the terminal according to the uplink quality parameters or the acquired downlink quality parameters, if the user type is determined to be a near point user, step 304 is executed, if the user type is determined to be a middle point user, step 305 is executed, if the user type is determined to be a far point user, step 306 is executed,
wherein the user types are divided according to different coverage levels.
304. And the base station transmits information to the terminal of the near point user type in a single antenna mode.
305. And the base station transmits information to the terminal of the midpoint user type in a dual-antenna mode.
306. The base station transmits information to the terminal of the remote user type in a four-antenna manner.
307, the base station schedules different user types at different times.
The scheduling in step 307 is for near point users, middle point users and far point users, and the ICIC for the far point users may also be performed in frequency division or time division to reduce interference between the far point users.
Fig. 4 and fig. 5 are schematic diagrams of downlink information transmission before the embodiment shown in fig. 3 and after the embodiment shown in fig. 3 are adopted, where 1T represents a single antenna mode, 2T represents a dual antenna mode, and 4T represents a 4 antenna mode. It can be seen that fig. 5 adopts a single antenna mode compared to near point users, whereas fig. 4 adopts a four antenna mode, whereas fig. 5 adopts a dual antenna mode compared to medium point users, and fig. 4 adopts a four antenna mode, only in far point users, both fig. 4 and fig. 5 adopt the four antenna mode.
With reference to fig. 6, the base station according to the embodiment of the present invention is described below, and fig. 6 is a diagram of an embodiment of the base station according to the embodiment of the present invention, where the base station 6 may include:
a processing module 601, configured to determine a coverage level of a terminal according to uplink information sent by the terminal;
optionally, distances from different areas within the coverage area of the base station to the base station are different, and the processing module 601 is specifically configured to determine the coverage level of the area according to the distance from the area of the coverage area to the base station and the uplink information sent by the terminal.
Optionally, the coverage levels include a first coverage level and a second coverage level lower than the first coverage level, and the number of antennas in an area of the second coverage level is greater than the number of antennas in an area of the first coverage level. For a detailed description of the coverage, reference may be made to the description of step 201 and step 202 in the embodiment shown in fig. 2, and details are not described here.
Optionally, the uplink information sent by the terminal includes a downlink quality parameter acquired by the terminal or an uplink quality parameter detected by the terminal, at this time, the processing module 601 is specifically configured to:
and determining the coverage grade of the terminal according to the downlink quality parameters acquired by the terminal or the uplink quality parameters detected by the terminal.
Optionally, the uplink quality parameter or the downlink quality parameter both includes at least one of SINR, RSRP, and CQI. For the SINR, RSRP and CQI related descriptions, reference may be specifically made to the descriptions of step 201 and step 202 in the embodiment shown in fig. 2, and details are not described here.
The processing module 601 is further configured to determine the number of antennas used for transmitting data to the terminal according to the coverage level.
Wherein, different coverage grades correspond to different antenna numbers;
a transceiver module 602, configured to send information to the terminal using the number of antennas.
Optionally, before the processing module 601 determines the coverage level, the processing module 601 is further configured to determine an area in which the terminal is located within its coverage. That is, before the processing module 601 determines the coverage level of the terminal according to the uplink information sent by the terminal, the processing module 601 will determine the location of the terminal first, so as to determine the specific area of the terminal within the coverage area of the base station.
Optionally, the processing module 601 is further configured to determine that the transmission rate in the coverage area of the base station is a non-high rate. Before the processing module 601 determines the coverage level of the terminal, the processing module 601 may first detect a transmission scenario, and perform a subsequent operation only if the transmission scenario is detected to be non-high rate.
Optionally, the processing module 601 is configured to determine a user category of the terminal according to the coverage level, and determine, according to the user category, the number of antennas used for sending information to the terminal.
Optionally, the processing module 601 is further configured to:
and scheduling different user types according to different time.
Optionally, the user types include near point users and far point users, and the processing module 601 is further configured to perform scheduling on the far point users in the far point region by using an interference coordination algorithm ICIC of frequency division or time division. For the user categories and the number of antennas corresponding to different categories, reference may be made to the description of step 201 and step 202 in the embodiment shown in fig. 2, and details are not repeated here.
Referring to fig. 7, fig. 7 is a diagram of an embodiment of a base station according to an embodiment of the present invention, where the base station 7 may include at least one processor 701, at least one transceiver 702, and a memory 703, which are all connected to a bus, and the base station according to an embodiment of the present invention may have more or less components than those shown in fig. 7, may combine two or more components, or may have different component configurations or arrangements, and each component may be implemented in hardware, software, or a combination of hardware and software including one or more signal processing and/or application specific integrated circuits.
Specifically, for the embodiment shown in fig. 6, the processor 701 can implement the functions of the processing module 601 in the embodiment shown in fig. 6, the transceiver 702 can implement the functions of the transceiver module 602 in the embodiment shown in fig. 6, the memory 703 is used for storing instructions and data to be executed by the processor 701, and the processor 701 is used for executing the instructions in the memory to implement determining the number of antennas according to the coverage level and using the antennas with the number of antennas to transmit information by the transceiver 702.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. 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.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. 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 can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) 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: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (18)
1. An antenna backoff method, comprising:
the base station determines the coverage grade of the area according to the distance between the area of the coverage area and the base station and the uplink information sent by the terminal;
the base station determines the number of antennas for transmitting data to the terminal according to the coverage grade, wherein different coverage grades correspond to different numbers of antennas;
and the base station adopts the number of antennas to send information to the terminal.
2. The antenna backoff method of claim 1, wherein the coverage levels comprise a first coverage level and a second coverage level lower than the first coverage level, wherein the number of antennas in the area of the second coverage level is greater than the number of antennas in the area of the first coverage level.
3. The antenna backoff method of claim 1, wherein the uplink information sent by the terminal includes a downlink quality parameter obtained by the terminal or an uplink quality parameter detected by the terminal, and the determining, by the base station, the coverage level corresponding to the terminal according to the uplink information sent by the terminal comprises:
and the base station determines the coverage grade of the terminal according to the downlink quality parameters acquired by the terminal or the uplink quality parameters detected by the terminal.
4. The antenna backoff method of claim 3, wherein the uplink quality parameter or the downlink quality parameter comprises at least one of a signal to interference plus noise ratio (SINR), a Reference Signal Received Power (RSRP), and a Channel Quality Indicator (CQI).
5. The antenna backoff method of claim 1, wherein before the base station determines the coverage level of an area according to the distance from the coverage area to the base station and uplink information sent by a terminal, the method further comprises:
and the base station determines the area of the terminal in the coverage area of the base station.
6. The antenna backoff method of claim 1, wherein before the base station determines the coverage level of an area according to the distance from the coverage area to the base station and uplink information sent by a terminal, the method further comprises:
and the base station determines that the transmission rate in the coverage area of the base station is a non-high rate.
7. The antenna backoff method of claim 1, wherein the base station determining the number of antennas used for transmitting information to the terminal according to the coverage level comprises:
the base station determines the user category of the terminal according to the coverage grade;
and the base station determines the number of antennas for sending information to the terminal according to the user category.
8. The antenna backoff method of claim 7, wherein the method further comprises:
and the base station schedules different user types according to different moments.
9. The antenna backoff method of claim 8, wherein the user types comprise near point users and far point users, and the base station employs an ICIC (interference coordination algorithm) for frequency division or time division for the far point users in the far point region for scheduling.
10. A base station, comprising:
the processing module is used for determining the coverage grade of the area according to the distance between the area of the coverage area and the base station and the uplink information sent by the terminal;
the processing module is further configured to determine, according to the coverage level, the number of antennas used for transmitting data to the terminal, where different coverage levels correspond to different numbers of antennas;
and the transceiver module is used for sending information to the terminal by adopting the antennas with the number.
11. The base station of claim 10, wherein the coverage levels comprise a first coverage level and a second coverage level lower than the first coverage level, and wherein the number of antennas in the area of the second coverage level is greater than the number of antennas in the area of the first coverage level.
12. The base station of claim 10, wherein the uplink information sent by the terminal includes a downlink quality parameter acquired by the terminal or an uplink quality parameter detected by the terminal, and the processing module is specifically configured to:
and determining the coverage grade of the terminal according to the downlink quality parameters acquired by the terminal or the uplink quality parameters detected by the terminal.
13. The base station of claim 12, wherein the uplink quality parameter or the downlink quality parameter each comprises at least one of a signal to interference plus noise ratio (SINR), a Reference Signal Received Power (RSRP), and a Channel Quality Indicator (CQI).
14. The base station of claim 10, wherein the processing module is further configured to:
and determining the area of the terminal in the coverage of the terminal.
15. The base station of claim 10, wherein the processing module is further configured to:
and determining that the transmission rate in the coverage area of the base station is a non-high rate.
16. The base station of claim 10, wherein the processing module is configured to:
determining the user category of the terminal according to the coverage grade;
and determining the number of antennas for sending information to the terminal according to the user category.
17. The base station of claim 16, wherein the processing module is further configured to:
and scheduling different user types according to different time.
18. The base station of claim 17, wherein the user types include near point users and far point users, and the processing module is further configured to perform scheduling on far point users in a far point region by using an interference coordination algorithm ICIC with frequency division or time division.
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| CN201610899492.1A CN106533515B (en) | 2016-10-14 | 2016-10-14 | Antenna backspacing method and base station |
| PCT/CN2017/104392 WO2018068668A1 (en) | 2016-10-14 | 2017-09-29 | Antenna rollback method, and base station |
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| CN106533515B (en) * | 2016-10-14 | 2020-05-08 | 上海华为技术有限公司 | Antenna backspacing method and base station |
| CN107343323B (en) * | 2017-06-12 | 2020-10-27 | 西安交通大学 | Differentiation back-off method based on user classification in 5G large-connection Internet of things |
| CN109327250A (en) * | 2017-07-31 | 2019-02-12 | 成都华为技术有限公司 | Communication means and the network equipment |
| CN107707288A (en) * | 2017-09-01 | 2018-02-16 | 珠海格力电器股份有限公司 | A kind of data transmission method and device |
| CN110504992B (en) * | 2018-05-16 | 2021-07-23 | 成都鼎桥通信技术有限公司 | Terminal double-transmission control method and device |
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