CN107318133B - Base station resource allocation method, macro base station and terminal - Google Patents
Base station resource allocation method, macro base station and terminal Download PDFInfo
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- CN107318133B CN107318133B CN201710643640.8A CN201710643640A CN107318133B CN 107318133 B CN107318133 B CN 107318133B CN 201710643640 A CN201710643640 A CN 201710643640A CN 107318133 B CN107318133 B CN 107318133B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
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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
- H04B7/022—Site diversity; Macro-diversity
- H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
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Abstract
The invention provides a base station resource allocation method, a macro base station and a terminal, wherein the macro base station and the terminal select a sub-base station with the strongest signal strength as a service base station according to the received signal strength of each sub-base station, and send a connection request to the service base station and access the service base station; after receiving the cooperation instruction sent by the serving base station, the terminal selects one or more cooperative base stations from other sub-base stations except the serving base station according to the signal strength of each sub-base station; the terminal sends a cooperation request to the cooperative base station, and the cooperative base station forwards the cooperation request to the macro base station, so that the macro base station preferentially allocates resource blocks of the sub base stations serving as the serving base station according to the service identification information in the received connection state information of the sub base stations after receiving the cooperation request, and the communication quality of users located at the edge of the cell is improved under the condition that the communication quality of other users in the cell is not influenced.
Description
Technical Field
The present invention relates to the field of wireless communications, and in particular, to a base station resource allocation method, a macro base station, and a terminal.
Background
In an existing communication network structure, a cell communication network composed of a macro base station and a plurality of sub base stations is often used to provide communication services for users connected to the cell. For the communication network structure, a Coordinated Multiple Points (CoMP) technology is commonly used to provide communication services for users. The existing CoMP technologies can be specifically classified into joint processing technology and cooperative scheduling technology.
In order to improve the communication quality of users located at the edge of a cell, the joint processing technology directly provides communication resources for a user after a base station is determined as a cooperative base station of a certain user, that is, a plurality of base stations in the cell are determined as cooperative base stations at the same time, and simultaneously provides the same communication resources for the user.
Disclosure of Invention
Aiming at the technical problem that the communication quality of users located in a cell central area is greatly influenced in the prior art, the invention provides a base station resource allocation method, a macro base station and a terminal.
The invention provides a base station resource allocation method, which comprises the following steps:
after receiving a cooperation request of a terminal forwarded by a cooperative base station, a macro base station preferentially allocates resource blocks of the sub base stations serving as the serving base station according to service identification information in the received connection state information of each sub base station, wherein the service identification information is used for indicating whether the sub base stations are the serving base stations; the serving base station of the terminal selects the sub-base station with the strongest signal strength according to the received signal strength of each sub-base station, and the cooperative base station of the terminal selects from other sub-base stations except the serving base station after receiving the cooperation instruction sent by the serving base station.
Further, the connection state information further includes a service terminal list and a cooperation terminal list; the service terminal list of each sub base station comprises a terminal identifier of a first terminal which connects the sub base station as a service base station, and the cooperation terminal list comprises a terminal identifier of a second terminal which selects the sub base station as a cooperation base station;
correspondingly, the preferentially allocating resource blocks of the sub base station serving as the serving base station specifically includes:
the macro base station selects any sub base station from the sub base stations as a first base station to be allocated;
the macro base station judges whether the first base station to be allocated is a serving base station according to the service identification information of the first base station to be allocated;
if so, the macro base station allocates the resource blocks of the first base station to be allocated to the first terminal according to the service terminal list of the first base station to be allocated, and returns to the step that the macro base station selects any sub base station from the sub base stations as the first base station to be allocated until the macro base station completes allocation of the resource blocks of all the sub base stations serving as the service base stations;
if not, returning to the step that the macro base station selects any sub base station from the sub base stations as a first base station to be allocated;
and the macro base station allocates resource blocks for the second terminals corresponding to the second terminal identifications in each cooperative terminal list according to the number of the second terminal identifications in the cooperative terminal list of the sub base station which is not used as the serving base station.
Further, the macro base station allocates resource blocks to the second terminals corresponding to the second terminal identifiers in each cooperative terminal list according to the number of the second terminal identifiers in the cooperative terminal list of the sub base station that is not the serving base station, specifically including:
the macro base station selects any sub base station from the sub base stations which are not used as the service base station as a second base station to be distributed;
the macro base station judges whether the number of second terminal identifications in the cooperative terminal list of the second base station to be distributed is equal to 1 or not according to the cooperative terminal list of the second base station to be distributed;
if so, the macro base station allocates all resource blocks of the second base station to be allocated to a second terminal corresponding to a second terminal identifier in the cooperative terminal list;
and if not, the macro base station sorts the second terminals according to the channel capacities of the second terminals corresponding to the second terminal identifications in the cooperative terminal list of the second base station to be allocated, and allocates resource blocks to the second terminals according to the sorting sequence.
The base station resource allocation method provided by the invention comprises the following steps:
the terminal selects the sub-base station with the strongest signal intensity as a serving base station according to the received signal intensity of each sub-base station, and sends a connection request to the serving base station and accesses the serving base station;
after receiving the cooperation instruction sent by the serving base station, the terminal selects one or more cooperative base stations from other sub-base stations except the serving base station according to the signal strength of each sub-base station;
and the terminal sends a cooperation request to the cooperative base station, so that after the macro base station receives the cooperation request of the terminal forwarded by the cooperative base station, the macro base station preferentially allocates resource blocks of the sub base stations serving as the serving base station according to the service identification information in the received connection state information of the sub base stations.
Further, the selecting, by the terminal, one or more cooperative base stations from other sub-base stations other than the serving base station according to the signal strength of each sub-base station specifically includes:
the terminal inquires a signal intensity threshold corresponding to the service type in a preset signal intensity threshold list according to the received service type selected by the user;
and the terminal compares the difference value between the signal strength of the service base station and the signal strength threshold value with the received signal strength of each sub-base station one by one, and takes the base station with the signal strength greater than the difference value as the one or more cooperative base stations.
Further, the connection request sent by the terminal to the serving base station further includes a terminal identifier of the terminal, so that the serving base station stores the terminal identifier of the terminal in a serving terminal list of the serving base station; the cooperation request sent by the terminal to the cooperative base station also includes a terminal identifier of the terminal, so that the cooperative base station stores the terminal identifier of the terminal in a cooperative terminal list of the cooperative base station.
The macro base station provided by the invention comprises:
the first transceiver module is configured to receive a cooperation request of a terminal forwarded by a cooperative base station and connection status information of each sub-base station, where the connection status information includes service identification information indicating whether the sub-base station is a serving base station;
the resource allocation module is used for preferentially allocating resource blocks serving as sub base stations of the serving base station according to the service identification information after the transceiver module receives the cooperation request of the terminal forwarded by the cooperation base station; the serving base station of the terminal selects the sub-base station with the strongest signal strength according to the received signal strength of each sub-base station, and the cooperative base station of the terminal selects from other sub-base stations except the serving base station after receiving the cooperation instruction sent by the serving base station.
Further, the connection state information further includes a service terminal list and a cooperation terminal list; the service terminal list of each sub base station comprises a terminal identifier of a first terminal which connects the sub base station as a service base station, and the cooperation terminal list comprises a terminal identifier of a second terminal which selects the sub base station as a cooperation base station;
correspondingly, the resource allocation module is specifically configured to:
selecting any sub base station from the sub base stations as a first base station to be allocated;
judging whether the first base station to be allocated is a serving base station or not according to the service identification information of the first base station to be allocated;
if so, allocating the resource blocks of the first base station to be allocated to the first terminal according to the service terminal list of the first base station to be allocated, and returning to the step that the macro base station selects any sub base station from the sub base stations as the first base station to be allocated until the macro base station completes allocation of the resource blocks of all the sub base stations serving as the service base stations;
if not, returning to the step that the macro base station selects any sub base station from the sub base stations as a first base station to be allocated;
and the macro base station allocates resource blocks for the second terminals corresponding to the second terminal identifications in each cooperative terminal list according to the number of the second terminal identifications in the cooperative terminal list of the sub base station which is not used as the serving base station.
Further, the resource allocation module is specifically configured to:
the macro base station selects any sub base station from the sub base stations which are not used as the service base station as a second base station to be distributed;
judging whether the number of second terminal identifications in the cooperative terminal list of the second base station to be distributed is equal to 1 or not according to the cooperative terminal list of the second base station to be distributed;
if so, distributing all resource blocks of the second base station to be distributed to a second terminal corresponding to a second terminal identifier in the cooperative terminal list;
and if not, sequencing each second terminal according to the channel capacity of the second terminal corresponding to each second terminal identifier in the cooperative terminal list of the second base station to be distributed, and distributing resource blocks for each second terminal according to the sequencing order.
The terminal provided by the invention comprises:
the selection module is used for selecting the sub-base station with the strongest signal intensity as the service base station according to the received signal intensity of each sub-base station; the base station further selects one or more cooperative base stations from other sub-base stations except the serving base station according to the signal strength of each sub-base station after the transceiver module receives the cooperation indication sent by the serving base station;
a second transceiver module, configured to send a connection request to the serving base station and access the serving base station; and the macro base station is further configured to send a cooperation request to the cooperative base station, so that after receiving the cooperation request of the terminal forwarded by the cooperative base station, the macro base station preferentially allocates resource blocks of the sub base stations serving as the serving base station according to the received service identifier information in the connection state information of each sub base station.
Further, the selection module is specifically configured to:
according to the received service type selected by the user, inquiring a signal intensity threshold corresponding to the service type in a preset signal intensity threshold list;
comparing the difference between the signal strength of the serving base station and the signal strength threshold with the received signal strength of each sub-base station one by one, and taking the base station with the signal strength greater than the difference as the one or more cooperative base stations.
Further, the connection request includes a terminal identifier of the terminal, so that the serving base station stores the terminal identifier of the terminal in a serving terminal list of the serving base station; the cooperation request further includes a terminal identifier of the terminal, so that the cooperation base station stores the terminal identifier of the terminal in a cooperation terminal list of the cooperation base station.
The base station resource allocation method, the macro base station and the terminal select the sub-base station with the strongest signal strength as the service base station through the terminal according to the received signal strength of each sub-base station, and send a connection request to the service base station and access the service base station; after receiving the cooperation instruction sent by the serving base station, the terminal selects one or more cooperative base stations from other sub-base stations except the serving base station according to the signal strength of each sub-base station; and the terminal sends a cooperation request to the cooperative base station, and the cooperative base station forwards the cooperation request to the macro base station, so that the macro base station preferentially allocates resource blocks of the sub base stations serving as the serving base station according to the service identification information in the received connection state information of the sub base stations after receiving the cooperation request. Compared with the existing scheme that a plurality of sub base stations determined to be in the cell at the same time serve as cooperative base stations and simultaneously provide the same communication resource for the user, the base station resource allocation method, the macro base station and the terminal provided by the invention can balance the communication quality of the terminal in the central area of the cell and the communication quality of the terminal at the edge of the cell, and improve the communication quality of the user at the edge of the cell under the condition of not influencing the communication quality of other users in the cell.
Drawings
Fig. 1 is a flowchart illustrating a method for allocating base station resources according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a method for allocating base station resources according to a second embodiment of the present invention;
fig. 3 is a flowchart illustrating a method for allocating base station resources according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a macro base station according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of a terminal according to a fifth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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.
Fig. 1 is a schematic flowchart of a base station resource allocation method according to an embodiment of the present invention, and as shown in fig. 1, the base station resource allocation method according to the present invention includes the following steps:
And 102, preferentially distributing resource blocks of the sub base stations serving as the serving base stations according to the service identification information in the received connection state information of each sub base station.
The service identification information is used to indicate whether the secondary base station is the serving base station, and the specific implementation manner of the service identification information may be, for example, the identification bits carried in the message sent to the macro base station at regular time.
It should be noted that the execution subject in the first embodiment of the present invention may specifically be a base station, and further may be a macro base station configured in a communication cell formed by multiple base stations, and multiple terminals may be distributed in one communication cell. In addition, the other base stations in the communication cell may be specifically a plurality of sub-stations connected with the macro base station, each sub-station is relatively independent, and each sub-station sends its own connection state information to the macro base station at regular time.
Specifically, after the terminal enters the cell, the sub-base station with the strongest signal strength is selected as the accessed serving base station according to the received signal strength of each sub-base station. When the load of the serving base station is heavy, such as the serving base station provides communication network services for several terminals at the same time or the load of the serving base station exceeds a load threshold, the serving base station sends a cooperation indication to the terminal. After receiving the cooperation instruction, the terminal selects one or more cooperative base stations from other sub-base stations except the serving base station according to the signal strength of each sub-base station, and sends a cooperation request to the cooperative base stations. Therefore, in the base station resource allocation method provided in this embodiment, after the macro base station receives the cooperation request forwarded by the cooperative base station, the resource blocks of the sub base station serving as the serving base station are preferentially allocated according to the service identifier information in the received connection status information of each sub base station.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process and corresponding beneficial effects of the terminal related to the method above may refer to the corresponding process in the third embodiment, and are not described herein again.
In the base station resource allocation method provided in the first embodiment of the present invention, after the macro base station receives the cooperation request of the terminal forwarded by the cooperative base station, the resource blocks of the sub base station serving as the serving base station are preferentially allocated according to the service identifier information in the received connection state information of each sub base station. Therefore, compared with the conventional scheme that a plurality of sub base stations determined to be in the cell at the same time are used as cooperative base stations to simultaneously provide the same communication resource for the user, the base station resource allocation method provided by the invention can balance the communication quality of the terminal in the central area of the cell and the communication quality of the terminal at the edge of the cell, and improve the communication quality of the user at the edge of the cell under the condition of not influencing the communication quality of other users in the cell.
To further improve the communication quality in the whole cell, on the basis of the first embodiment, fig. 2 is a flowchart illustrating a method for allocating base station resources according to a second embodiment of the present invention.
As shown in fig. 2, the method includes:
It should be noted that the execution subject of the second embodiment of the present invention may specifically be a base station, and further may be a macro base station configured in a communication cell formed by multiple base stations, and multiple terminals may be distributed in one communication cell. In addition, the other base stations in the communication cell may be specifically a plurality of sub-stations connected with the macro base station, each sub-station is relatively independent, and each sub-station sends its own connection state information to the macro base station at regular time.
Specifically, after the terminal enters the cell, the sub-base station with the strongest signal strength is selected as the accessed serving base station according to the received signal strength of each sub-base station. When the load of the serving base station is heavy, such as the serving base station provides communication network services for several terminals at the same time or the load of the serving base station exceeds a load threshold, the serving base station sends a cooperation indication to the terminal. After receiving the cooperation instruction, the terminal selects one or more cooperative base stations from other sub base stations except the serving base station according to the signal strength of each sub base station, sends a cooperation request to the cooperative base stations, and forwards the cooperation request to the macro base station to start a resource block allocation mechanism.
Different from the first embodiment, in the base station resource allocation method provided in the second embodiment, the connection state information received by the macro base station and sent by each of the child base stations includes service identification information, a list of service terminals, and a list of cooperative terminals. The service identification information indicates whether the sub base station is the service base station, for example, the service identification information may specifically be an identification bit carried in a message sent to the macro base station at regular time; the service terminal list includes a terminal identifier of a first terminal that connects the child base station as the service base station, and the cooperative terminal list includes a terminal identifier of a second terminal that selects the child base station as the cooperative base station.
And 203, selecting any sub base station from the sub base stations as a first base station to be allocated.
And step 204, judging whether the first base station to be allocated is a serving base station according to the service identification information of the first base station to be allocated.
If yes, execute 205; if not, 203 is executed.
If yes, go to step 207; if not, 203 is executed.
And step 207, allocating resource blocks to the second terminals corresponding to the second terminal identifications in each cooperative terminal list according to the number of the second terminal identifications in the cooperative terminal list of the sub base station which is not used as the serving base station.
Specifically, the step 203-:
firstly, the macro base station selects any sub base station from the sub base stations as a first base station to be allocated, and judges whether the first base station to be allocated is a service base station or not according to the service identification information of the first base station to be allocated. If the first base station to be allocated is the serving base station, the macro base station allocates the resource blocks of the first base station to be allocated to the first terminal according to the serving terminal list of the first base station to be allocated, selects any sub-base station from all sub-base stations again as the next first base station to be allocated, and judges whether the next first base station to be allocated is the serving base station; if the first base station to be allocated is not the serving base station, the macro base station directly selects any sub base station from the sub base stations again to serve as the next first base station to be allocated, and judges whether the next first base station to be allocated is the serving base station. And repeating the steps of selecting the first base station to be allocated, judging whether the first base station to be allocated is the service base station and allocating the resource blocks of the service base station until the macro base station completes the allocation of all the resource blocks of the sub base stations serving as the service base station.
Then, after the macro base station completes the allocation of all the resource blocks of the sub base station serving as the serving base station, the macro base station also allocates the resource blocks to the second terminals corresponding to the second terminal identifiers in each cooperative terminal list according to the number of the second terminal identifiers in the cooperative terminal list of the sub base station not serving as the serving base station.
Further, on the basis of the method shown in fig. 2, the allocating, by the macro base station in step 207, the resource block to the second terminal corresponding to the second terminal identifier in each cooperative terminal list according to the number of the second terminal identifiers in the cooperative terminal list of the sub base station that is not the serving base station may specifically include:
step 2071, select any sub-base station from the sub-base stations that are not serving as the serving base station as the second to-be-allocated base station.
Step 2072, according to the cooperative terminal list of the second to-be-allocated base station, determining whether the number of the second terminal identifiers in the cooperative terminal list of the second to-be-allocated base station is equal to 1.
If yes, go to step 2073; if not, go to step 2074.
Step 2073, allocate all resource blocks of the second base station to be allocated to the second terminal corresponding to the second terminal identifier in the cooperative terminal list.
Step 2074, rank the second terminals according to the channel capacities of the second terminals corresponding to the second terminal identifiers in the cooperative terminal list of the second base station to be allocated, and allocate resource blocks to the second terminals according to the rank order.
Specifically, in step 2071 and 2074, the macro base station selects any sub-base station from the sub-base stations that are not serving as the serving base station as the second base station to be allocated, and determines whether the number of the second terminal identifiers in the cooperative terminal list of the second base station to be allocated is equal to 1 according to the cooperative terminal list of the second base station to be allocated. If the number of the second terminal identifications in the cooperative terminal list of the second base station to be allocated is equal to 1, allocating all resource blocks of the second base station to be allocated to the second terminal corresponding to the second terminal identification in the cooperative terminal list; and if the number of the second terminal identifications in the cooperative terminal list of the second base station to be allocated is not equal to 1, namely a plurality of second terminal identifications exist in the cooperative terminal list of the second base station to be allocated, sequencing the second terminals according to the channel capacity of the second terminals, and allocating resource blocks to the second terminals according to the sequencing sequence.
Further, since the second terminal identifier of the second terminal may exist in the cooperative terminal list of the plurality of sub base stations, that is, the second terminal may send the cooperation request to the plurality of sub base stations. Therefore, in an implementation manner of this embodiment, it is determined whether the number of the second terminal identifiers in the cooperative terminal list of the second base station to be allocated is equal to 1, and the allocation policy for the resource block of the second base station to be allocated is determined according to the number of the second terminal identifiers in the cooperative terminal list. In this embodiment, if the second to-be-allocated base station only needs to provide the cooperative service for one second terminal and does not serve as the serving base station for other terminals, all resource blocks of the second to-be-allocated base station may be allocated to a unique second terminal; if the second base station to be allocated needs to provide cooperative service for a plurality of second terminals and does not serve as a serving base station for other terminals, a greedy algorithm may be used to allocate resource blocks to the second terminals, or the second terminals may be sorted according to channel capacities of the second terminals and allocated with resource blocks.
Optionally, in another implementation manner of this embodiment, after determining whether the number of the second terminal identifiers in the cooperative terminal list of the second to-be-allocated base station is equal to 1 and selecting the sub-base stations that only need to provide the cooperative service for one second terminal and do not serve as the serving base station, the resource blocks of the cooperative base stations may be prioritized, the second terminal that has been allocated to the resource blocks is deleted from the cooperative terminal lists of other sub-base stations, and the next to-be-allocated base station is reselected and the steps of determining, allocating, and deleting are repeated until resource allocation of all the resource blocks of the sub-base stations that only need to provide the cooperative service for one second terminal and do not serve as the serving base station is completed. And then, selecting a second base station to be allocated, wherein the second base station to be allocated at this time is a child base station having a plurality of second terminal identifications in the cooperative terminal list, and the second terminals can be sorted according to the channel capacity of each second terminal and allocated with resource blocks according to the sorting order.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process and corresponding beneficial effects of the terminal related to the method above may refer to the corresponding process in the third embodiment, and are not described herein again.
In the second embodiment of the present invention, the resource blocks of the sub base station serving as the serving base station can be preferentially allocated to the first terminals, so as to ensure the communication quality of each first terminal. And other resource blocks of other sub-base stations which are not used as the serving base station can be distributed to the second terminals according to the service requirements of the second terminals. Therefore, compared with the existing scheme that a plurality of sub base stations determined to be in the cell at the same time are used as cooperative base stations to simultaneously provide the same communication resource for the user, the base station resource allocation method provided by the invention can balance the communication quality of the first terminal and the communication quality of the second terminal needing cooperation, namely improve the communication quality of the user positioned at the edge of the cell under the condition of not influencing the communication quality of other users in the cell.
Fig. 3 is a flowchart illustrating a method for allocating base station resources according to a third embodiment of the present invention, where as shown in fig. 3, the method specifically includes:
It should be noted that the execution subject of the third embodiment of the present invention may specifically be a terminal, and further may be a terminal entering a certain communication cell. The communication cell may specifically include a plurality of base stations, where the plurality of base stations may specifically include a macro base station and a plurality of child base stations connected to the macro base station, where each child base station is relatively independent and each child base station transmits its connection state information to the macro base station at regular time.
Specifically, after entering the communication cell, the terminal receives signals from each sub-base station in the cell, and according to the received signal strength of each sub-base station, the terminal may select the sub-base station with the strongest signal strength as the serving base station, and send a connection request to the serving base station to access the serving base station. It should be noted that the connection request sent by the terminal to the serving base station further includes a terminal identifier of the terminal, so that the serving base station stores the terminal identifier of the terminal in a serving terminal list of the serving base station, which is convenient for the macro base station to allocate resource blocks of the sub base station.
Specifically, when the load of the serving base station is heavy, for example, the serving base station provides a communication network service for a plurality of terminals at the same time, or the load of the serving base station exceeds a load threshold, or the serving base station cannot meet the requirement of the terminal due to a large amount of resources required by the terminal, at this time, the serving base station sends a cooperation instruction to the terminal, where the cooperation instruction is used to instruct the terminal to select a cooperative base station to bear the communication resources required by the terminal. That is, the terminal needs to select one or more cooperative base stations from the other child base stations other than the serving base station according to the signal strength of each child base station.
Further, the selecting one or more cooperative base stations from other sub-base stations except the serving base station may specifically include the terminal querying a signal strength threshold corresponding to the service type in a preset signal strength threshold list according to the received service type selected by the user, comparing a difference between the signal strength of the serving base station and the signal strength threshold with the signal strength of each received sub-base station one by one, and using the base station having the signal strength greater than the difference as the one or more cooperative base stations. The service type may be, for example, a short message type service, a call type service, an internet type service, and the like, and the present invention is not limited thereto.
The service identification information is used for indicating whether a secondary base station is a service base station or not.
Specifically, after the terminal selects one or more cooperative base stations, the terminal selects the sub-base station with the strongest signal strength as a serving base station according to the received signal strength of each sub-base station, and sends a connection request to the serving base station and accesses the serving base station; after receiving the cooperation instruction sent by the serving base station, the terminal selects one or more cooperative base stations from other sub-base stations except the serving base station according to the signal intensity of each sub-base station; and the macro base station preferentially allocates resource blocks of the sub base stations serving as the serving base station according to the received service identification information in the connection state information of the sub base stations after receiving the cooperation request. It should be noted that the cooperation request sent by the terminal to the cooperative base station may include a terminal identifier of the terminal, so that the cooperative base station stores the terminal identifier of the terminal in a cooperative terminal list of the cooperative base station, which is convenient for the macro base station to allocate resource blocks of the sub base station.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process and corresponding beneficial effects of the macro base station related to the method may refer to the corresponding process in the foregoing method embodiment, and are not described herein again.
In the method for allocating base station resources provided by the third embodiment of the present invention, when a terminal selects, through a terminal according to received signal strengths of sub-base stations, a sub-base station with the strongest signal strength as a serving base station, sends a connection request to the serving base station and accesses the serving base station; after receiving the cooperation instruction sent by the serving base station, the terminal selects one or more cooperative base stations from other sub-base stations except the serving base station according to the signal strength of each sub-base station; and the terminal sends a cooperation request to the cooperative base station, and the cooperative base station forwards the cooperation request to the macro base station, so that the macro base station preferentially allocates resource blocks of the sub base stations serving as the serving base station according to the service identification information in the received connection state information of the sub base stations after receiving the cooperation request. Therefore, compared to the conventional scheme in which a plurality of sub base stations determined to be within a cell at the same time are used as cooperative base stations to simultaneously provide the same communication resource for the user, the base station resource allocation method, the macro base station and the terminal provided by the present invention can balance the communication quality of the terminal in the center area of the cell with the communication quality of the terminal at the edge of the cell, and improve the communication quality of the user located at the edge of the cell without affecting the communication quality of other users in the cell.
Fig. 4 is a schematic structural diagram of a macro base station according to a fourth embodiment of the present invention, and as shown in fig. 4, the macro base station includes: a first transceiver module 10 and a resource allocation module 20.
The first transceiver module 10 is configured to receive a cooperation request of a terminal forwarded by a cooperative base station and connection status information of each sub-base station, where the connection status information includes service identification information used to indicate whether the sub-base station is a serving base station;
a resource allocation module 20, configured to, after the first transceiver module 10 receives the cooperation request of the terminal forwarded by the cooperative base station, preferentially allocate a resource block of a sub base station serving as the serving base station according to the service identifier information; the serving base station of the terminal selects the sub-base station with the strongest signal strength according to the received signal strength of each sub-base station, and the cooperative base station of the terminal selects from other sub-base stations except the serving base station after receiving the cooperation instruction sent by the serving base station.
It should be noted that the macro base station provided in the fourth embodiment of the present invention may be specifically configured in a communication cell formed by multiple base stations, and multiple terminals may be distributed in one communication cell. In addition, the other base stations in the communication cell may be specifically a plurality of sub-stations connected with the macro base station, each sub-station is relatively independent, and each sub-station sends its own connection state information to the macro base station at regular time.
Specifically, after the terminal enters the cell, the sub-base station with the strongest signal strength is selected as the accessed serving base station according to the received signal strength of each sub-base station. When the load of the serving base station is heavy, such as the serving base station provides communication network services for several terminals at the same time or the load of the serving base station exceeds a load threshold, the serving base station sends a cooperation indication to the terminal. After receiving the cooperation instruction, the terminal selects one or more cooperative base stations from other sub-base stations except the serving base station according to the signal strength of each sub-base station, and sends a cooperation request to the cooperative base stations. Therefore, in the fourth embodiment, after the macro base station receives the cooperation request forwarded by the cooperative base station by the first transceiver module 10, the resource allocation module 20 preferentially allocates the resource blocks of the sub base station as the serving base station according to the service identifier information in the received connection status information of each sub base station.
On the basis of the structure shown in fig. 4, preferably, the connection state information further includes a service terminal list and a cooperation terminal list; the service terminal list of each sub base station comprises a terminal identifier of a first terminal which connects the sub base station as a service base station, and the cooperation terminal list comprises a terminal identifier of a second terminal which selects the sub base station as a cooperation base station;
correspondingly, the resource allocation module 20 is specifically configured to: selecting any sub base station from the sub base stations as a first base station to be allocated; judging whether the first base station to be allocated is a serving base station or not according to the service identification information of the first base station to be allocated; if so, allocating the resource blocks of the first base station to be allocated to the first terminal according to the service terminal list of the first base station to be allocated, and returning to the step that the macro base station selects any sub base station from the sub base stations as the first base station to be allocated until the macro base station completes allocation of the resource blocks of all the sub base stations serving as the service base stations; if not, returning to the step that the macro base station selects any sub base station from the sub base stations as a first base station to be allocated; and the macro base station allocates resource blocks for the second terminals corresponding to the second terminal identifications in each cooperative terminal list according to the number of the second terminal identifications in the cooperative terminal list of the sub base station which is not used as the serving base station.
On the basis of the structure shown in fig. 4, preferably, the resource allocation module 20 is specifically configured to: the macro base station selects any sub base station from the sub base stations which are not used as the service base station as a second base station to be distributed; judging whether the number of second terminal identifications in the cooperative terminal list of the second base station to be distributed is equal to 1 or not according to the cooperative terminal list of the second base station to be distributed; if so, distributing all resource blocks of the second base station to be distributed to a second terminal corresponding to a second terminal identifier in the cooperative terminal list; and if not, sequencing each second terminal according to the channel capacity of the second terminal corresponding to each second terminal identifier in the cooperative terminal list of the second base station to be distributed, and distributing resource blocks for each second terminal according to the sequencing order.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process and corresponding beneficial effects of the apparatus described above may refer to the corresponding process in the foregoing method embodiments, and are not described herein again.
After receiving the cooperation request of the terminal forwarded by the cooperative base station, the macro base station according to the fourth embodiment of the present invention preferentially allocates the resource blocks of the sub base stations serving as the serving base station according to the service identifier information in the received connection state information of each sub base station. Therefore, compared with the conventional scheme that a plurality of sub base stations determined to be in the cell at the same time are used as cooperative base stations to simultaneously provide the same communication resource for the user, the macro base station can balance the communication quality of the terminal in the central area of the cell with the communication quality of the terminal at the edge of the cell, and can improve the communication quality of the user at the edge of the cell without influencing the communication quality of other users in the cell.
Fig. 5 is a schematic structural diagram of a terminal according to a fifth embodiment of the present invention, and as shown in fig. 5, the terminal includes:
a selecting module 30, configured to select, according to the received signal strength of each sub-base station, the sub-base station with the strongest signal strength as a serving base station; and the transceiver module is further configured to select one or more cooperative base stations from other sub-base stations except the serving base station according to the signal strength of each sub-base station after receiving the cooperation indication sent by the serving base station.
A second transceiving module 40, configured to send a connection request to the serving base station and access the serving base station; and the macro base station is further configured to send a cooperation request to the cooperative base station, so that after receiving the cooperation request of the terminal forwarded by the cooperative base station, the macro base station preferentially allocates resource blocks of the sub base stations serving as the serving base station according to the received service identifier information in the connection state information of each sub base station.
It should be noted that the fifth embodiment of the present invention may specifically be a terminal entering a certain communication cell. The communication cell may specifically include a plurality of base stations, where the plurality of base stations may specifically include a macro base station and a plurality of child base stations connected to the macro base station, where each child base station is relatively independent and each child base station transmits its connection state information to the macro base station at regular time.
Specifically, after the terminal enters the communication cell, the second transceiver module 40 receives signals from each sub-base station in the cell, the selection module 30 may select the sub-base station with the strongest signal strength as the serving base station according to the received signal strength of each sub-base station, and the second transceiver module 40 sends a connection request to the serving base station and accesses the serving base station. It should be noted that the connection request includes the terminal identifier of the terminal, so that the serving base station stores the terminal identifier of the terminal in the serving terminal list of the serving base station, which is convenient for the macro base station to allocate resource blocks of the sub base station. Further, when the load of the serving base station is heavy, for example, the serving base station provides a communication network service for a plurality of terminals at the same time, or the load of the serving base station exceeds a load threshold, or the amount of resources required by the terminal is large, the serving base station cannot meet the requirement of the terminal, at this time, the serving base station sends a cooperation instruction to the terminal, and the cooperation instruction is used for indicating that the terminal needs to select a cooperative base station to bear the communication resources required by the terminal. That is, the terminal needs to select one or more cooperative base stations from the other child base stations other than the serving base station according to the signal strength of each child base station.
Specifically, after the terminal selection module 30 selects one or more cooperative base stations, the secondary base station with the strongest signal strength is selected as the serving base station according to the received signal strength of each secondary base station, and the second transceiver module 40 sends a connection request to the serving base station and accesses the serving base station; after the second transceiver module 40 receives the cooperation instruction sent by the serving base station, the selection module 30 further selects one or more cooperative base stations from other sub-base stations except the serving base station according to the signal strength of each sub-base station; the second transceiver module 40 sends a cooperation request to the cooperative base station, so that the cooperative base station forwards the cooperation request to the macro base station, and after receiving the cooperation request, the macro base station preferentially allocates resource blocks of the sub base stations serving as the serving base station according to the service identifier information in the received connection state information of each sub base station. It should be noted that the cooperation request sent by the terminal to the cooperative base station may include a terminal identifier of the terminal, so that the cooperative base station stores the terminal identifier of the terminal in a cooperative terminal list of the cooperative base station, which is convenient for the macro base station to allocate resource blocks of the sub base station.
Preferably, on the basis of the structure shown in fig. 5, the selection module 30 is specifically configured to: according to the service type selected by the user and received by the second transceiver module 40, inquiring a signal intensity threshold corresponding to the service type in a preset signal intensity threshold list; comparing the difference between the signal strength of the serving base station and the signal strength threshold with the received signal strength of each sub-base station one by one, and taking the base station with the signal strength greater than the difference as the one or more cooperative base stations.
Preferably, on the basis of the structure shown in fig. 5, the connection request includes the terminal identifier of the terminal, so that the serving base station stores the terminal identifier of the terminal in a serving terminal list of the serving base station; the cooperation request further includes a terminal identifier of the terminal, so that the cooperation base station stores the terminal identifier of the terminal in a cooperation terminal list of the cooperation base station.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process and corresponding beneficial effects of the apparatus described above may refer to the corresponding process in the foregoing method embodiments, and are not described herein again.
In the terminal provided by the fifth embodiment of the present invention, when the terminal selects the sub-base station with the strongest signal strength as the serving base station according to the received signal strength of each sub-base station, the terminal sends a connection request to the serving base station and accesses the serving base station; after receiving the cooperation instruction sent by the serving base station, the terminal selects one or more cooperative base stations from other sub-base stations except the serving base station according to the signal strength of each sub-base station; and the terminal sends a cooperation request to the cooperative base station, and the cooperative base station forwards the cooperation request to the macro base station, so that the macro base station preferentially allocates resource blocks of the sub base stations serving as the serving base station according to the service identification information in the received connection state information of the sub base stations after receiving the cooperation request. Therefore, compared to the conventional scheme in which a plurality of sub base stations determined to be within a cell at the same time are used as cooperative base stations to simultaneously provide the same communication resource for the user, the base station resource allocation method, the macro base station and the terminal provided by the present invention can balance the communication quality of the terminal in the center area of the cell with the communication quality of the terminal at the edge of the cell, and improve the communication quality of the user located at the edge of the cell without affecting the communication quality of other users in the cell.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A method for allocating base station resources is characterized by comprising the following steps:
after receiving a cooperation request of a terminal forwarded by a cooperative base station, a macro base station preferentially allocates resource blocks of the sub base stations serving as the serving base station according to service identification information in the received connection state information of each sub base station, wherein the service identification information is used for indicating whether the sub base stations are the serving base stations; the serving base station of the terminal selects the sub-base station with the strongest signal strength according to the received signal strength of each sub-base station, and the cooperative base station of the terminal selects from other sub-base stations except the serving base station after the terminal receives the cooperation instruction sent by the serving base station;
the connection state information further comprises a service terminal list and a cooperation terminal list; the service terminal list of each sub base station comprises a terminal identifier of a first terminal which connects the sub base station as a service base station, and the cooperation terminal list comprises a terminal identifier of a second terminal which selects the sub base station as a cooperation base station;
correspondingly, the preferentially allocating resource blocks of the sub base station serving as the serving base station specifically includes:
the macro base station selects any sub base station from the sub base stations as a first base station to be allocated;
the macro base station judges whether the first base station to be allocated is a serving base station according to the service identification information of the first base station to be allocated;
if so, the macro base station allocates the resource blocks of the first base station to be allocated to the first terminal according to the service terminal list of the first base station to be allocated, and returns to the step that the macro base station selects any sub base station from the sub base stations as the first base station to be allocated until the macro base station completes allocation of the resource blocks of all the sub base stations serving as the service base stations;
if not, returning to the step that the macro base station selects any sub base station from the sub base stations as a first base station to be allocated;
and the macro base station allocates resource blocks for the second terminals corresponding to the second terminal identifications in each cooperative terminal list according to the number of the second terminal identifications in the cooperative terminal list of the sub base station which is not used as the serving base station.
2. The base station resource allocation method according to claim 1, wherein the macro base station allocates resource blocks to the second terminals corresponding to the second terminal identifiers in each cooperative terminal list according to the number of the second terminal identifiers in the cooperative terminal list of the sub base station that is not the serving base station, specifically comprising:
the macro base station selects any sub base station from the sub base stations which are not used as the service base station as a second base station to be distributed;
the macro base station judges whether the number of second terminal identifications in the cooperative terminal list of the second base station to be distributed is equal to 1 or not according to the cooperative terminal list of the second base station to be distributed;
if so, the macro base station allocates all resource blocks of the second base station to be allocated to a second terminal corresponding to a second terminal identifier in the cooperative terminal list;
and if not, the macro base station sorts the second terminals according to the channel capacities of the second terminals corresponding to the second terminal identifications in the cooperative terminal list of the second base station to be allocated, and allocates resource blocks to the second terminals according to the sorting sequence.
3. A method for allocating base station resources is characterized by comprising the following steps:
the terminal selects the sub-base station with the strongest signal intensity as a serving base station according to the received signal intensity of each sub-base station, and sends a connection request to the serving base station and accesses the serving base station;
after receiving the cooperation instruction sent by the serving base station, the terminal selects one or more cooperative base stations from other sub-base stations except the serving base station according to the signal strength of each sub-base station;
the terminal sends a cooperation request to the cooperative base station, so that after the macro base station receives the cooperation request of the terminal forwarded by the cooperative base station, the macro base station preferentially allocates resource blocks of the sub base stations serving as the serving base station according to the service identification information in the received connection state information of each sub base station;
after the macro base station receives the cooperation request of the terminal forwarded by the cooperative base station, the macro base station preferentially allocates resource blocks of the sub base stations serving as the serving base station according to the received service identification information in the connection state information of the sub base stations by adopting the following mode: selecting any sub base station from the sub base stations as a first base station to be allocated, and judging whether the first base station to be allocated is a serving base station or not according to the service identification information of the first base station to be allocated; if the first base station to be allocated is the serving base station, allocating the resource blocks of the first base station to be allocated to the terminal according to the serving terminal list of the first base station to be allocated, and returning to the step of selecting any sub-base station from the sub-base stations as the first base station to be allocated until the allocation of all the resource blocks of the sub-base stations serving as the serving base station is completed; if the first base station to be allocated is not the serving base station, returning to the step of selecting any sub base station from the sub base stations as the first base station to be allocated; allocating resource blocks to second terminals corresponding to the second terminal identifications in each cooperative terminal list according to the number of the second terminal identifications in the cooperative terminal list of the sub base station which is not used as the serving base station;
the connection state information further comprises a service terminal list and a cooperation terminal list; the service terminal list of each sub base station comprises a terminal identifier of a first terminal which connects the sub base station as the service base station, and the cooperation terminal list comprises a terminal identifier of a second terminal which selects the sub base station as the cooperation base station.
4. The method of claim 3, wherein the terminal selects one or more cooperative base stations from other sub-base stations except the serving base station according to the signal strength of each sub-base station, and specifically comprises:
the terminal inquires a signal intensity threshold corresponding to the service type in a preset signal intensity threshold list according to the received service type selected by the user;
and the terminal compares the difference value between the signal strength of the service base station and the signal strength threshold value with the received signal strength of each sub-base station one by one, and takes the base station with the signal strength greater than the difference value as the one or more cooperative base stations.
5. A macro base station, comprising:
the first transceiver module is configured to receive a cooperation request of a terminal forwarded by a cooperative base station and connection status information of each sub-base station, where the connection status information includes service identification information indicating whether the sub-base station is a serving base station;
the resource allocation module is used for preferentially allocating resource blocks serving as sub base stations of the serving base station according to the service identification information after the transceiver module receives the cooperation request of the terminal forwarded by the cooperation base station; the serving base station of the terminal selects the sub-base station with the strongest signal strength according to the received signal strength of each sub-base station, and the cooperative base station of the terminal selects from other sub-base stations except the serving base station after the terminal receives the cooperation instruction sent by the serving base station;
the connection state information further comprises a service terminal list and a cooperation terminal list; the service terminal list of each sub base station comprises a terminal identifier of a first terminal which connects the sub base station as a service base station, and the cooperation terminal list comprises a terminal identifier of a second terminal which selects the sub base station as a cooperation base station;
correspondingly, the resource allocation module is specifically configured to:
selecting any sub base station from the sub base stations as a first base station to be allocated;
judging whether the first base station to be allocated is a serving base station or not according to the service identification information of the first base station to be allocated;
if so, allocating the resource blocks of the first base station to be allocated to the first terminal according to the service terminal list of the first base station to be allocated, and returning to the step that the macro base station selects any sub base station from the sub base stations as the first base station to be allocated until the macro base station completes allocation of the resource blocks of all the sub base stations serving as the service base stations;
if not, returning to the step that the macro base station selects any sub base station from the sub base stations as a first base station to be allocated;
and the macro base station allocates resource blocks for the second terminals corresponding to the second terminal identifications in each cooperative terminal list according to the number of the second terminal identifications in the cooperative terminal list of the sub base station which is not used as the serving base station.
6. A macro base station according to claim 5, wherein the resource allocation module is specifically configured to:
the macro base station selects any sub base station from the sub base stations which are not used as the service base station as a second base station to be distributed;
judging whether the number of second terminal identifications in the cooperative terminal list of the second base station to be distributed is equal to 1 or not according to the cooperative terminal list of the second base station to be distributed;
if so, distributing all resource blocks of the second base station to be distributed to a second terminal corresponding to a second terminal identifier in the cooperative terminal list;
and if not, sequencing each second terminal according to the channel capacity of the second terminal corresponding to each second terminal identifier in the cooperative terminal list of the second base station to be distributed, and distributing resource blocks for each second terminal according to the sequencing order.
7. A terminal, comprising:
the selection module is used for selecting the sub-base station with the strongest signal intensity as the service base station according to the received signal intensity of each sub-base station; the base station is further configured to select one or more cooperative base stations from other sub-base stations except the serving base station according to the signal strength of each sub-base station after the transceiver module receives the cooperation indication sent by the serving base station;
a second transceiver module, configured to send a connection request to the serving base station and access the serving base station; the macro base station is further configured to send a cooperation request to the cooperative base station, so that after receiving the cooperation request of the terminal forwarded by the cooperative base station, the macro base station preferentially allocates resource blocks of the sub base stations serving as the serving base station according to the received service identifier information in the connection state information of the sub base stations;
the connection request comprises a terminal identifier of the terminal, so that the service base station stores the terminal identifier of the terminal in a service terminal list of the service base station; the cooperation request further comprises a terminal identifier of the terminal, so that the cooperation base station stores the terminal identifier of the terminal in a cooperation terminal list of the cooperation base station;
correspondingly, the receiving, by the terminal, the resource block preferentially allocated as the sub base station of the serving base station specifically includes:
the macro base station selects any sub base station from the sub base stations as a first base station to be allocated; the macro base station judges whether the first base station to be allocated is a serving base station according to the service identification information of the first base station to be allocated; if so, the macro base station allocates the resource blocks of the first base station to be allocated to the terminal according to the service terminal list of the first base station to be allocated, and returns to the step that the macro base station selects any sub base station from the sub base stations as the first base station to be allocated until the macro base station completes allocation of all the resource blocks of the sub base stations as the service base stations; if not, returning to the step that the macro base station selects any sub base station from the sub base stations as a first base station to be allocated; and the macro base station allocates resource blocks for the terminals corresponding to the terminal identifications in each cooperative terminal list according to the number of the terminal identifications in the cooperative terminal list of the sub base station which is not used as the serving base station.
8. The terminal of claim 7, wherein the selection module is specifically configured to:
according to the received service type selected by the user, inquiring a signal intensity threshold corresponding to the service type in a preset signal intensity threshold list;
comparing the difference between the signal strength of the serving base station and the signal strength threshold with the received signal strength of each sub-base station one by one, and taking the base station with the signal strength greater than the difference as the one or more cooperative base stations.
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| CN107889187B (en) * | 2017-11-16 | 2021-01-01 | 北京邮电大学 | Method and device for accessing terminal to base station and electronic equipment |
| CN110536480B (en) * | 2019-09-24 | 2021-06-22 | 京信通信系统（中国）有限公司 | Spectrum management method and device, computer equipment and storage medium |
| CN111465027B (en) * | 2020-04-01 | 2023-04-11 | 中国联合网络通信集团有限公司 | Communication method, sub base station, mother base station and communication system |
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