CN111417128A - Carrier management method, base station and terminal - Google Patents
Carrier management method, base station and terminal Download PDFInfo
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- CN111417128A CN111417128A CN201910010596.6A CN201910010596A CN111417128A CN 111417128 A CN111417128 A CN 111417128A CN 201910010596 A CN201910010596 A CN 201910010596A CN 111417128 A CN111417128 A CN 111417128A
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- carrier
- indication information
- uplink
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
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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 provides a carrier management method, a base station and a terminal, wherein the carrier management method comprises the steps of receiving a signal quality measurement result from a second base station, and sending first indication information to the terminal according to the signal quality measurement result, wherein the signal quality measurement result is obtained by measuring an uplink signal sent by the terminal on a low-frequency carrier by the second base station, and the first indication information is used for indicating whether the first base station changes the uplink carrier or not.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a carrier management method, a base station, and a terminal.
Background
At present, the fifth generation mobile communication (5G) technology is vigorously developed in the world, 5G is based on 4G, higher requirements are put on mobile communication, and the speed, the power consumption, the time delay and other aspects of the technology are all completely improved. Therefore, 5G business is greatly promoted, and the development of the Internet is about to enter the intelligent Internet era from the mobile Internet era. Since one of the main service requirements of the 5G system is high rate and the bandwidth is proportional to the rate, in the 5G system, the 3.5GHz band is advantageous in its large bandwidth or will become the dominant band of the 5G system.
However, the 3.5GHz band belongs to the intermediate frequency band, and according to theoretical derivation and some test verifications, the uplink transmission performance of the 3.5GHz band is in a disadvantage, that is, the coverage area and the service rate of the uplink are both significantly lower than those of the downlink, and it is difficult to meet the 5G service requirement, so that the uplink transmission of the 3.5GHz band needs to be enhanced.
The Single uplink (Single Up L ink, SU L) is a typical uplink enhancing means by introducing an independent low-frequency uplink carrier, when using SU L function, the medium-frequency carrier such as 3.5GHz can be used for uplink transmission at the uplink and downlink of the cell center, and when the cell edge is used, the low-frequency carrier such as 900MHz or 1800MHz is introduced for uplink transmission, and the downlink transmission is still performed at the medium-frequency carrier such as 3.5 GHz.
However, after the SU L function is introduced, because uplink and downlink transmission and uplink and downlink measurement are performed on the intermediate frequency carrier, and only uplink transmission but no downlink transmission and measurement are performed on the low frequency carrier, when the terminal changes the carrier between the intermediate frequency carrier and the low frequency carrier, only the measurement result of the intermediate frequency carrier but not the measurement result of the low frequency carrier is used as a judgment basis for the change, so that uplink transmission may be switched to the low frequency carrier with poor channel quality for uplink transmission, which causes the uplink transmission to be worse, and the accuracy of the carrier change to be low.
Disclosure of Invention
The embodiment of the invention provides a carrier management method, a base station and a terminal, which aim to solve the problem of low accuracy of carrier change caused by lack of a low-frequency carrier measurement result when carrier management is carried out after SU L function is introduced at present.
In a first aspect, an embodiment of the present invention provides a carrier management method, applied to a first base station, including:
receiving a signal quality measurement from the second base station;
sending first indication information to the terminal according to the signal quality measurement result;
the signal quality measurement result is obtained by measuring an uplink signal sent by a terminal on a low-frequency carrier by the second base station, and the first indication information is used for indicating whether the first base station changes the uplink carrier.
In a second aspect, an embodiment of the present invention further provides a carrier management method, applied to a second base station, including:
receiving an uplink signal sent by a terminal on a low-frequency carrier;
measuring the uplink signal to obtain a signal quality measurement result;
sending the signal quality measurement result to a first base station, and sending first indication information to the terminal by the first base station according to the signal quality measurement result;
the first indication information is used for indicating whether the first base station changes the uplink carrier.
In a third aspect, an embodiment of the present invention further provides a carrier management method, applied to a terminal, including:
sending an uplink signal to a second base station on a low-frequency carrier, measuring the uplink signal by the second base station to obtain a signal quality measurement result, and sending the signal quality measurement result to the first base station;
receiving first indication information from the first base station;
wherein the first indication information is sent by the first base station according to the signal quality measurement result, and is used for indicating whether the first base station performs uplink carrier change.
In a fourth aspect, an embodiment of the present invention further provides a first base station, including: a transmitter and a receiver;
wherein the receiver is to: receiving a signal quality measurement from the second base station;
the transmitter is configured to: sending first indication information to a terminal according to the signal quality measurement result;
the signal quality measurement result is obtained by measuring an uplink signal sent by the terminal on a low-frequency carrier by the second base station, and the first indication information is used for indicating whether the first base station changes the uplink carrier.
In a fifth aspect, an embodiment of the present invention further provides a second base station, including: a processor, a transmitter and a receiver;
wherein the receiver is to: receiving an uplink signal sent by a terminal on a low-frequency carrier;
the processor is configured to: measuring the uplink signal to obtain a signal quality measurement result;
the transmitter is configured to: sending the signal quality measurement result to a first base station, and sending first indication information to the terminal by the first base station according to the signal quality measurement result;
the first indication information is used for indicating whether the first base station changes the uplink carrier.
In a sixth aspect, an embodiment of the present invention further provides a terminal, including: a transmitter and a receiver;
wherein the transmitter is to: sending an uplink signal to a second base station on a low-frequency carrier, measuring the uplink signal by the second base station to obtain a signal quality measurement result, and sending the signal quality measurement result to the first base station;
the receiver is configured to: receiving first indication information from the first base station;
the first indication information is sent by the first base station according to the signal quality measurement result and is used for indicating whether the first base station changes the uplink carrier.
In a seventh aspect, an embodiment of the present invention further provides a base station, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the computer program, when executed by the processor, may implement the steps of the carrier management method applied to the first base station or the steps of the carrier management method applied to the second base station.
In an eighth aspect, an embodiment of the present invention further provides a terminal, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the computer program, when executed by the processor, may implement the steps of the carrier management method applied to the terminal.
In a ninth aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, can implement the steps of any of the carrier management methods described above.
In the embodiment of the invention, the signal quality measurement result is received from the second base station, and the first indication information is sent to the terminal according to the signal quality measurement result, wherein the signal quality measurement result is obtained by measuring the uplink signal sent by the terminal on the low-frequency carrier by the second base station, and the first indication information is used for indicating whether the first base station changes the uplink carrier or not, so that the first base station can obtain and refer to the channel quality of the low-frequency carrier when the uplink carrier is changed, thereby solving the problem of low accuracy of carrier change caused by lack of the low-frequency carrier measurement result when the carrier management is carried out after the SU L function is introduced at present, ensuring that the carrier management is more reasonable, and avoiding the uplink throughput performance loss caused by switching to the low-frequency carrier with poor channel quality.
Drawings
Fig. 1 is a flowchart of a carrier management method according to an embodiment of the present invention;
fig. 2 is a second flowchart of a carrier management method according to an embodiment of the invention;
fig. 3 is a third flowchart of a carrier management method according to an embodiment of the present invention;
fig. 4 is a flowchart of a carrier management process according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a base station according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a terminal according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a communication device according to an embodiment of the present invention.
Detailed Description
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 some, not all, embodiments of the present invention. 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.
Referring to fig. 1, an embodiment of the present invention provides a carrier management method, which is applied to a first base station, and the method includes the following steps:
step 101: a signal quality measurement is received from the second base station.
And the signal quality measurement result is obtained by measuring the uplink signal sent by the terminal on the low-frequency carrier by the second base station. For example, the signal quality measurement result may be selected as a signal to Interference plus Noise Ratio (SINR) of the uplink signal. The signal quality measurement may be sent by the second base station to the first base station over the X2 interface.
In a specific implementation, the first base station and the second base station may be divided based on their respective carrier frequencies. Optionally, the first base station may be an intermediate frequency base station and the second base station may be a low frequency base station. For example, the first base station is a 3.5G base station and the second base station is a 1.8G base station.
Step 102: and sending first indication information to the terminal according to the signal quality measurement result.
The first indication information is used for indicating whether the first base station changes the uplink carrier or not. Before sending the first indication information, the first base station may first determine whether to change the uplink carrier according to a signal quality measurement result on the low frequency carrier, and send the determination result through the first indication information, where the determination process may adopt any one of the following methods:
the method comprises the following steps: comparing the signal quality measurement result on the low-frequency carrier with a preset threshold value; if the signal quality measurement result is greater than the preset threshold value, the uplink signal quality on the low-frequency carrier wave is better, and the uplink carrier wave is suitable to be changed to the low-frequency carrier wave; otherwise, it indicates that the quality of the uplink signal on the low-frequency carrier is poor, and the uplink carrier is not suitable for being changed to the low-frequency carrier.
The second method comprises the following steps: comparing the signal quality measurement result on the low frequency carrier with the signal quality measurement result on the first base station's own carrier, such as an intermediate frequency carrier; if the comparison result shows that the signal quality on the low-frequency carrier is better than that on the intermediate-frequency carrier, the uplink carrier is suitable to be changed to the low-frequency carrier; otherwise, it is not suitable to change the uplink carrier to the low frequency carrier.
According to the carrier management method provided by the embodiment of the invention, the signal quality measurement result is received from the second base station, and the first indication information is sent to the terminal according to the signal quality measurement result, wherein the signal quality measurement result is obtained by measuring the uplink signal sent by the terminal on the low-frequency carrier wave by the second base station, and the first indication information is used for indicating whether the first base station changes the uplink carrier wave or not, so that the channel quality of the low-frequency carrier wave can be obtained and referred when the first base station changes the uplink carrier wave, and therefore, the problem of low accuracy of carrier wave change caused by lack of the low-frequency carrier wave measurement result when the carrier wave management is carried out after the SU L function is introduced at present is solved, the carrier wave management is more reasonable, and the uplink throughput performance loss caused by switching to the low-frequency carrier wave with poor channel quality is avoided.
In the embodiment of the present invention, in order to obtain a signal quality measurement result on a low frequency carrier, the first base station may trigger the terminal to send an uplink signal on the low frequency carrier, so as to obtain the signal quality on the low frequency carrier by measuring the uplink signal. Optionally, before step 101, the method may further include:
the first base station sends second indication information to the terminal;
wherein the second indication information is used for indicating that the first base station is to perform the judgment of the uplink carrier change. Before sending the second indication information, the first base station may first determine whether the terminal needs to change to the low-frequency uplink carrier according to the downlink measurement information of its own carrier, and determine to perform the determination of the uplink carrier change when it is determined that the terminal needs to change to the low-frequency uplink carrier. In a specific implementation, the downlink measurement information may be a Reference Signal Receiving Power (RSRP) measurement value, and when the downlink RSRP measurement value is smaller than a preset threshold value, it indicates that the signal quality of the carrier itself is poor, and uplink transmission needs to be changed to a low-frequency carrier.
In this way, after receiving the second indication information, that is, knowing that the first base station will perform the determination of the uplink carrier change, the terminal may transmit the uplink signal on the low frequency carrier to perform the subsequent carrier change confirmation operation.
Optionally, in a specific implementation, the second indication information may be sent by the first base station through physical layer signaling. For example, the first base station may add an indication bit to Downlink Control Information (DCI) to indicate whether the first base station is to perform uplink carrier change judgment, and indicate the first base station not to perform uplink carrier change judgment when the bit is 0, and indicate the first base station to perform uplink carrier change judgment when the bit is 1.
Referring to fig. 2, an embodiment of the present invention further provides a carrier management method, which is applied to a second base station, and the method includes the following steps:
step 201: and receiving the uplink signal transmitted by the terminal on the low-frequency carrier.
Wherein, the terminal sending the uplink signal on the low frequency carrier may be triggered by the first base station. For example, when the first base station determines that the terminal needs to be changed to the low-frequency uplink carrier, the first base station may trigger the terminal to transmit the uplink signal on the low-frequency carrier, so that the second base station obtains the signal quality on the low-frequency carrier by measuring the uplink signal.
In a specific implementation, the first base station and the second base station may be divided based on their respective carrier frequencies. Optionally, the first base station may be an intermediate frequency base station and the second base station may be a low frequency base station. For example, the first base station is a 3.5G base station and the second base station is a 1.8G base station.
Step 202: and measuring the uplink signal to obtain a signal quality measurement result.
Optionally, the signal quality measurement result may be selected as an SINR of the uplink signal.
Step 203: and sending a signal quality measurement result to the first base station, and sending first indication information to the terminal by the first base station according to the signal quality measurement result.
The first indication information may be used to indicate whether the first base station performs uplink carrier change. Optionally, the second base station may send the signal quality measurement result to the first base station through an X2 interface.
The carrier management method of the embodiment of the invention can enable the first base station to acquire and refer to the channel quality of the low-frequency carrier when the uplink carrier is changed, thereby solving the problem of low accuracy of carrier change caused by lack of a low-frequency carrier measurement result when the carrier management is carried out after the SU L function is introduced at present, enabling the carrier management to be more reasonable, and avoiding uplink throughput performance loss caused by switching to the low-frequency carrier with poor channel quality.
Referring to fig. 3, an embodiment of the present invention further provides a carrier management method, which is applied to a terminal, and the method includes the following steps:
step 301: and sending an uplink signal to the second base station on the low-frequency carrier, measuring the uplink signal by the second base station to obtain a signal quality measurement result, and sending the signal quality measurement result to the first base station.
Optionally, when step 301 is executed, the terminal may send, on the low frequency carrier, the uplink signal occupying the predetermined time-frequency resource by using a fixed power control mechanism. One possible implementation manner is that the terminal transmits a random access preamble (i.e., a preamble code, such as a string of binary sequences with a length of 64 bits preconfigured for the system) on a low frequency carrier, and scrambles the preamble code by using a unique identification code of the terminal, such as a Cell-Radio network temporary Identifier (C-RNTI), so that the second base station can determine which terminal transmits the preamble code after receiving an uplink signal transmitted by the terminal.
Step 302: first indication information is received from a first base station.
The first indication information is sent by the first base station according to the signal quality measurement result and is used for indicating whether the first base station changes the uplink carrier or not.
The carrier management method of the embodiment of the invention can enable the first base station to acquire and refer to the channel quality of the low-frequency carrier when the uplink carrier is changed, thereby solving the problem of low accuracy of carrier change caused by lack of a low-frequency carrier measurement result when the carrier management is carried out after the SU L function is introduced at present, enabling the carrier management to be more reasonable, and avoiding uplink throughput performance loss caused by switching to the low-frequency carrier with poor channel quality.
In this embodiment of the present invention, optionally, before step 301, the method may further include:
the terminal receives second indication information from the first base station;
wherein the second indication information is used for indicating that the first base station is to perform the judgment of the uplink carrier change.
In this way, after receiving the second indication information, that is, knowing that the first base station will perform the determination of the uplink carrier change, the terminal may transmit the uplink signal on the low frequency carrier to perform the subsequent carrier change confirmation operation.
Next, a carrier management procedure according to an embodiment of the present invention will be described with reference to fig. 4.
In the embodiment of the present invention, the first base station is a 3.5G base station, and the second base station is a 1.8G base station. Referring to fig. 4, the corresponding carrier management procedure includes the following steps:
step 41: and the 3.5G base station judges that the terminal needs to change the uplink carrier according to the downlink RSRP measurement value of the 3.5GHz carrier, namely, the uplink transmission is changed to the low-frequency carrier.
Step 42: the 3.5G base station sends indication information to the terminal through DCI; the indication information is used for indicating the 3.5G base station to perform judgment of uplink carrier change so as to trigger the terminal to transmit an uplink signal on the low-frequency carrier, thereby performing subsequent carrier change confirmation operation.
Step 43: and the terminal sends an uplink signal to the 1.8G base station on the low-frequency carrier.
Step 44: after receiving the uplink signal, the 1.8G base station measures the uplink signal to obtain the SINR of the uplink signal, and sends the SINR of the uplink signal to the 3.5G base station through an X2 interface.
Step 45: the 3.5G base station determines whether to perform uplink carrier change based on the SINR of the uplink signal.
Step 46: the 3.5G base station sends indication information to the terminal through DCI, namely the judgment result of the step 45 is sent to the terminal; the indication information is used for indicating whether the 3.5G base station changes the uplink carrier or not.
Thus, after introducing the SU L function, when the 3.5G base station performs uplink carrier change, that is, changes to the 1.8GHz carrier, the 3.5G base station can obtain and refer to the channel quality of the 1.8GHz carrier, thereby avoiding uplink throughput performance loss caused by switching to the 1.8GHz carrier with poor channel quality, and performing carrier management more reasonably.
The above embodiments describe the carrier management method of the present invention, and the base station and the terminal of the present invention are described below with reference to the embodiments and the drawings.
Referring to fig. 5, an embodiment of the present invention further provides a base station, which includes a processor 51, a transmitter 52, and a receiver 53. Optionally, the base station may be a first base station or a second base station.
In this embodiment of the present invention, when the base station is a first base station, the receiver 53 is configured to: receiving a signal quality measurement from the second base station;
the transmitter 52 is configured to: sending first indication information to a terminal according to the signal quality measurement result;
the signal quality measurement result is obtained by measuring an uplink signal sent by the terminal on a low-frequency carrier by the second base station, and the first indication information is used for indicating whether the first base station changes the uplink carrier.
Optionally, the transmitter 52 is further configured to: sending second indication information to the terminal;
wherein the second indication information is used for indicating that the first base station is to perform uplink carrier change judgment.
Optionally, the first base station is an intermediate frequency base station, and the second base station is a low frequency base station.
In this embodiment of the present invention, when the base station is a second base station, the receiver 53 is configured to: receiving an uplink signal sent by a terminal on a low-frequency carrier;
the processor 51 is configured to: measuring the uplink signal to obtain a signal quality measurement result;
the transmitter 52 is configured to: sending the signal quality measurement result to a first base station, and sending first indication information to the terminal by the first base station according to the signal quality measurement result;
the first indication information is used for indicating whether the first base station changes the uplink carrier.
In the embodiment of the invention, the first base station can acquire and refer to the channel quality of the low-frequency carrier when the uplink carrier is changed, so that the problem of low accuracy of carrier change caused by lack of a low-frequency carrier measurement result when the carrier management is carried out after the SU L function is introduced at present is solved, the carrier management is more reasonable, and the uplink throughput performance loss caused by switching to the low-frequency carrier with poor channel quality is avoided.
In FIG. 5, a bus architecture (represented by bus 50), bus 50 may include any number of interconnected buses and bridges, with bus 50 connecting together various circuits including one or more processors, represented by processor 51, and memory, represented by memory 54. The transmitter 52 and the receiver 53 may be a transceiver interface, and the transmitter 52 and the receiver 53 may be connected to the processor 51 and the memory 54 via the bus 50.
The processor 51 is responsible for managing the bus 50 and general processing, while the memory 54 may be used for storing data used by the processor 51 in performing operations.
Referring to fig. 6, an embodiment of the present invention further provides a terminal including a processor 61, a transmitter 62, and a receiver 63.
Wherein the transmitter 62 is configured to: sending an uplink signal to a second base station on a low-frequency carrier, measuring the uplink signal by the second base station to obtain a signal quality measurement result, and sending the signal quality measurement result to the first base station;
the receiver 63 is configured to: receiving first indication information from the first base station;
the first indication information is sent by the first base station according to the signal quality measurement result and is used for indicating whether the first base station changes the uplink carrier.
Optionally, the receiver 63 is further configured to: receiving second indication information from the first base station;
wherein the second indication information is used for indicating that the first base station is to perform uplink carrier change judgment.
In the embodiment of the invention, the first base station can acquire and refer to the channel quality of the low-frequency carrier when the uplink carrier is changed, so that the problem of low accuracy of carrier change caused by lack of a low-frequency carrier measurement result when the carrier management is carried out after the SU L function is introduced at present is solved, the carrier management is more reasonable, and the uplink throughput performance loss caused by switching to the low-frequency carrier with poor channel quality is avoided.
In FIG. 6, a bus architecture (represented by bus 60), bus 60 may include any number of interconnected buses and bridges, with bus 60 connecting together various circuits including one or more processors, represented by processor 61, and memory, represented by memory 64. The transmitter 62 and the receiver 63 may be a transceiver interface, and the transmitter 62 and the receiver 63 may be connected to the processor 61 and the memory 64 through the bus 60.
The processor 61 is responsible for managing the bus 60 and general processing, while the memory 64 may be used for storing data used by the processor 61 in performing operations.
In addition, an embodiment of the present invention further provides a base station, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, may implement each process of the carrier management method embodiment applied to the first base station or each process of the carrier management method embodiment applied to the second base station, and may achieve the same technical effect, and details are not repeated here to avoid repetition.
The embodiment of the present invention further provides a terminal, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, can implement each process of the embodiment of the carrier management method applied to the terminal, and can achieve the same technical effect, and in order to avoid repetition, the detailed description is omitted here.
Specifically, referring to fig. 7, the embodiment of the present invention further provides a communication device, which includes a bus 71, a transceiver 72, an antenna 73, a bus interface 74, a processor 75, and a memory 76. The communication device may be selected as a base station or a terminal.
In an embodiment of the present invention, the communication device further includes: a computer program stored on the memory 76 and executable on the processor 75.
Optionally, when the communication device is a first base station, the computer program may implement the following steps when executed by the processor 75:
receiving a signal quality measurement from the second base station; sending first indication information to a terminal according to the signal quality measurement result; the signal quality measurement result is obtained by measuring an uplink signal sent by the terminal on a low-frequency carrier by the second base station, and the first indication information is used for indicating whether the first base station changes the uplink carrier.
Optionally, when the communication device is a second base station, the computer program may implement the following steps when executed by the processor 75:
receiving an uplink signal sent by a terminal on a low-frequency carrier; measuring the uplink signal to obtain a signal quality measurement result; sending the signal quality measurement result to a first base station, and sending first indication information to the terminal by the first base station according to the signal quality measurement result; the first indication information is used for indicating whether the first base station changes the uplink carrier.
Optionally, when the communication device is a terminal, the computer program may implement the following steps when executed by the processor 75:
sending an uplink signal to a second base station on a low-frequency carrier, measuring the uplink signal by the second base station to obtain a signal quality measurement result, and sending the signal quality measurement result to the first base station; receiving first indication information from the first base station; wherein the first indication information is sent by the first base station according to the signal quality measurement result, and is used for indicating whether the first base station performs uplink carrier change.
In fig. 7, a bus architecture (represented by bus 71), bus 71 may include any number of interconnected buses and bridges, bus 71 linking together various circuits including one or more processors, represented by processor 75, and memory, represented by memory 76. The bus 71 may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface 74 provides an interface between the bus 71 and the transceiver 72. The transceiver 72 may be one element or a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the processor 75 is transmitted over a wireless medium via the antenna 73, and further, the antenna 73 receives the data and transmits the data to the processor 75.
The processor 75 is responsible for managing the bus 71 and general processing and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And the memory 76 may be used to store data used by the processor 75 in performing operations.
Alternatively, the processor 75 may be a CPU, ASIC, FPGA or CP L D.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the computer program implements each process of the embodiment of the carrier management method, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
Computer-readable media, which include both non-transitory and non-transitory, removable and non-removable media, may implement the information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a base station) to execute the method according to the embodiments of the present invention.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (15)
1. A carrier management method applied to a first base station is characterized by comprising the following steps:
receiving a signal quality measurement from the second base station;
sending first indication information to a terminal according to the signal quality measurement result;
the signal quality measurement result is obtained by measuring an uplink signal sent by the terminal on a low-frequency carrier by the second base station, and the first indication information is used for indicating whether the first base station changes the uplink carrier.
2. The method of claim 1, wherein prior to receiving the signal quality measurement from the second base station, the method further comprises:
sending second indication information to the terminal;
wherein the second indication information is used for indicating that the first base station is to perform uplink carrier change judgment.
3. The method according to claim 1 or 2, wherein the first base station is an intermediate frequency base station and the second base station is a low frequency base station.
4. A carrier management method applied to a second base station is characterized by comprising the following steps:
receiving an uplink signal sent by a terminal on a low-frequency carrier;
measuring the uplink signal to obtain a signal quality measurement result;
sending the signal quality measurement result to a first base station, and sending first indication information to the terminal by the first base station according to the signal quality measurement result;
the first indication information is used for indicating whether the first base station changes the uplink carrier.
5. A carrier management method is applied to a terminal, and is characterized by comprising the following steps:
sending an uplink signal to a second base station on a low-frequency carrier, measuring the uplink signal by the second base station to obtain a signal quality measurement result, and sending the signal quality measurement result to the first base station;
receiving first indication information from the first base station;
wherein the first indication information is sent by the first base station according to the signal quality measurement result, and is used for indicating whether the first base station performs uplink carrier change.
6. The method of claim 5, wherein before transmitting the uplink signal to the second base station on the low frequency carrier, the method further comprises:
receiving second indication information from the first base station;
wherein the second indication information is used for indicating that the first base station is to perform uplink carrier change judgment.
7. A first base station, comprising: a transmitter and a receiver;
wherein the receiver is to: receiving a signal quality measurement from the second base station;
the transmitter is configured to: sending first indication information to a terminal according to the signal quality measurement result;
the signal quality measurement result is obtained by measuring an uplink signal sent by the terminal on a low-frequency carrier by the second base station, and the first indication information is used for indicating whether the first base station changes the uplink carrier.
8. The first base station of claim 7, wherein:
the transmitter is further configured to: sending second indication information to the terminal;
wherein the second indication information is used for indicating that the first base station is to perform uplink carrier change judgment.
9. The first base station of claim 7 or 8, wherein the first base station is an intermediate frequency base station and the second base station is a low frequency base station.
10. A second base station, comprising: processor, transmitter and receiver
Wherein the receiver is to: receiving an uplink signal sent by a terminal on a low-frequency carrier;
the processor is configured to: measuring the uplink signal to obtain a signal quality measurement result;
the transmitter is configured to: sending the signal quality measurement result to a first base station, and sending first indication information to the terminal by the first base station according to the signal quality measurement result;
the first indication information is used for indicating whether the first base station changes the uplink carrier.
11. A terminal, comprising: a transmitter and a receiver;
wherein the transmitter is to: sending an uplink signal to a second base station on a low-frequency carrier, measuring the uplink signal by the second base station to obtain a signal quality measurement result, and sending the signal quality measurement result to the first base station;
the receiver is configured to: receiving first indication information from the first base station;
the first indication information is sent by the first base station according to the signal quality measurement result and is used for indicating whether the first base station changes the uplink carrier.
12. The terminal of claim 11, wherein:
the receiver is further configured to: receiving second indication information from the first base station;
wherein the second indication information is used for indicating that the first base station is to perform uplink carrier change judgment.
13. Base station comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the computer program, when executed by the processor, implements the steps of the carrier management method according to any of claims 1 to 4.
14. A terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the computer program, when executed by the processor, implements the steps of the carrier management method according to claim 5 or 6.
15. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the carrier management method according to any one of claims 1 to 6.
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