CN107888244B - Method and device for realizing user plane function enhancement in wireless communication system - Google Patents
Method and device for realizing user plane function enhancement in wireless communication system Download PDFInfo
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- CN107888244B CN107888244B CN201610875557.9A CN201610875557A CN107888244B CN 107888244 B CN107888244 B CN 107888244B CN 201610875557 A CN201610875557 A CN 201610875557A CN 107888244 B CN107888244 B CN 107888244B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
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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
Abstract
An apparatus and method for enhancing user plane functions in a wireless communication system, the apparatus being disposed in a base station, comprising: the first beam management module comprises a parameter acquisition unit, a control unit and a first processing unit: the parameter acquiring unit is used for acquiring network parameters; the control unit is used for sending a control instruction to the first processing unit according to the acquired network parameters and/or sending a beam management instruction to the terminal according to the acquired network parameters; and the first processing unit is used for executing corresponding beam operation according to the control instruction. The invention realizes that the beam management module is added in the user plane, so that the function of the user plane can meet the requirement of beam management in a future communication system. The Beam management module provided by the embodiment of the invention is positioned in the user plane, is not limited to be positioned at the specific position of the user plane, and is flexible in layout.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for implementing user plane function enhancement in a wireless communication system.
Background
In 4G, a C-RAN (Centralized, coherent, Cloud & Clean-Radio Access Network) architecture generally includes a Centralized BBU (Base Band Unit), and a Remote RRU (Radio Remote Unit), where the former includes sublayers such as a physical layer, a layer two including MAC (Medium Access Control), RLC (Radio Link Control), PDCP (Packet Data Protocol), and a layer three including Protocol function layers such as RRC (Radio Resource Control). The fronthaul Interface between the BBU and the RRU adopts a CPRI (Common Public Radio Interface), and because the CPRI transmits iq (phase and quality) signals processed by physical layer coding modulation and the like, the CPRI has large requirements on transmission delay and bandwidth. If the air interface rate is increased to tens of Gbps in the future, the traffic demand of the CPRI interface will rise to the Tbps level, which brings huge pressure on the network deployment cost and the deployment difficulty.
Therefore, the functions of the BBU and the RRU need to be redefined, such as placing part of the user plane function of the second layer on the BBU and part on the RRU. BBU and RRU after re-planning function are named CU (Centralized Unit) and DU (Distributed Unit), respectively. The distribution unit may also be referred to as a remote unit. This architecture is also a hot architecture that may be employed in future communication systems, and is schematically illustrated in fig. 1.
In the future, a communication system develops towards the targets of seamless wide area coverage, large-capacity hot spots, low-power consumption, large-quantity connection, low delay, high reliability and the like, a high-frequency band and a large bandwidth are inevitably adopted, and the coverage range of the high-frequency band is very small due to the propagation characteristics of the high-frequency band, so that a large-scale antenna array mm (massive mimo) is often used for improving the link gain and further improving the coverage. The large-scale antenna array can greatly improve the link performance by adopting a beam forming (beam forming) technology, naturally achieves the purpose of improving the coverage and the capacity, and is considered as an effective mode for improving the transmission rate of a modern wireless communication system. In future communication systems, the number of antenna units of a large-scale antenna array can reach hundreds or even thousands, and both common channels and dedicated channels may be based on beam (beam, herein abbreviated as beam) coverage, so that higher requirements are put on the functions of a user plane, and the functions of the current user plane cannot meet the requirements of the future communication systems.
Disclosure of Invention
In view of this, the present invention provides the following.
An apparatus for implementing user plane functionality enhancement in a wireless communication system, the apparatus being disposed at a base station, comprising:
the first beam management module comprises a parameter acquisition unit, a control unit and a first processing unit:
the parameter acquiring unit is used for acquiring network parameters;
the control unit is used for sending a control instruction to the first processing unit according to the acquired network parameters and/or sending a beam management instruction to the terminal according to the acquired network parameters;
and the first processing unit is used for executing corresponding beam operation according to the control instruction.
An apparatus for implementing user plane function enhancement in a wireless communication system, the apparatus being disposed in a terminal, and comprising a second beam management module disposed corresponding to a first beam management module disposed in a base station, the second beam management module comprising:
the receiving unit is used for receiving the beam management instruction sent by the first beam management module;
and the second processing unit is used for executing corresponding operation according to the beam management instruction.
A base station, comprising:
the first beam management module comprises a parameter acquisition unit, a control unit and a first processing unit:
the parameter acquiring unit is used for acquiring network parameters;
the control unit is used for sending a control instruction to the first processing unit according to the acquired network parameters and/or sending a beam management instruction to the terminal according to the acquired network parameters;
and the first processing unit is used for executing corresponding beam operation according to the control instruction.
A terminal comprises a second beam management module and a first beam management module which is arranged in a base station, wherein the second beam management module comprises:
the receiving unit is used for receiving the beam management instruction sent by the first beam management module;
and the second processing unit is used for executing corresponding operation according to the beam management instruction.
A wireless communication system, comprising:
the base station comprises a first beam management module, a second beam management module and a first beam management module, wherein the first beam management module is used for acquiring network parameters, executing beam related operation according to the acquired network parameters and/or sending beam management instructions to the terminal according to the acquired network parameters;
and the terminal comprises a second beam management module, is arranged corresponding to the first beam management module, and is used for executing corresponding operation according to the beam management instruction sent by the first beam management module.
A method for implementing user plane functionality enhancement in a wireless communication system, comprising:
acquiring network parameters;
and executing corresponding beam related operation according to the acquired network parameters, and/or sending beam management instructions to the terminal according to the acquired network parameters.
A method of enabling user plane functionality enhancement in a wireless communication system, the method comprising:
receiving a beam management instruction sent by a base station;
and executing corresponding operation according to the beam management instruction.
According to the scheme, the beam management module is added in the user plane, so that the function of the user plane can meet the requirement of beam management in a future communication system. The Beam management module provided by the embodiment of the invention is positioned in a user plane, is not limited to be positioned at a specific position of the user plane, and is flexible in layout.
Drawings
FIG. 1 is a diagram illustrating a network architecture in a future communication system;
FIG. 2 is a schematic structural diagram of an apparatus for implementing user plane function enhancement according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a base station and a terminal according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of sub-modules included in a first beam management module according to an embodiment of the present invention;
fig. 5 is a flowchart of a method for implementing user plane functionality enhancement in a wireless communication system according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a concentration unit and a distribution unit in an application example of the present invention.
Fig. 7 is a schematic diagram of a bearer split scheme of LTE dual connectivity.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
For convenience of description, the LTE system is taken as an example for description, but the embodiment of the present invention is not limited to the LTE system.
The first embodiment is as follows:
referring to fig. 2, a schematic structural diagram of a device for implementing user plane function enhancement according to an embodiment of the present invention is shown, where the device for implementing user plane function enhancement is disposed in a base station, and includes a first beam management module, where the first beam management module includes: parameter acquisition unit, control unit, and first processing unit:
the parameter acquiring unit is used for acquiring network parameters;
the control unit is used for sending a control instruction to the first processing unit according to the acquired network parameters and/or sending a beam management instruction to the terminal according to the acquired network parameters;
and the first processing unit is used for executing corresponding beam operation according to the control instruction.
Optionally, the acquiring the network parameter by the parameter acquiring unit includes: obtaining pre-stored network parameters, and/or obtaining network parameters measured in real time.
The control unit comprises the following sub-modules or any combination of more than one sub-modules: the system comprises a Beam measuring sub-module, a Beam scheduling sub-module, a Beam monitoring and switching sub-module, a Beam cooperation sub-module and a Beam power control sub-module;
the beam measuring submodule is used for sending a signal for measuring the channel quality to a terminal;
the beam scheduling submodule is used for sending a first beam scheduling instruction to the first processing unit according to the network parameters acquired by the parameter acquisition module and/or sending a second beam scheduling instruction to the terminal;
the beam monitoring and switching submodule is used for sending a beam switching instruction to a terminal when a signal suddenly fades according to the network parameters acquired by the parameter acquisition module and the channel quality measurement quantity measured by the beam measuring submodule;
the beam cooperation submodule is used for sending a beam cooperation instruction to the first processing unit according to the network parameters acquired by the parameter acquisition module and sending a beam interference coordination instruction to the first processing unit according to the parameters between beams acquired by the beam measurement submodule;
the Beam power control sub-module is used for distributing the power on the full bandwidth among more than one Beam, sending a power distribution instruction to the first processing unit and/or sending a power control signaling to the terminal.
Optionally, the first beam management module is separately configured on the user plane, or the first beam management module is configured in any one of a MAC (Medium Access Control) module, an RLC (Radio Link Control) module, a PDCP (Packet Data Convergence Protocol) module, and a physical layer (PHY) module of the user plane.
This embodiment still provides a device for realizing user plane function enhancement, sets up at the terminal, includes second beam management module, corresponds the setting with the first beam management module that sets up in the basic station, second beam management module includes:
the receiving unit is used for receiving the beam management instruction sent by the first beam management module;
and the second processing unit is used for executing corresponding operation according to the beam management instruction.
Optionally, the receiving unit receives the beam management instruction sent by the first beam management module; the method comprises the following steps:
receiving a measurement channel quality signaling sent by a base station; correspondingly, the second processing unit executes corresponding operations according to the beam management instruction, including:
and measuring the channel indicated in the measured channel quality signaling, and sending the obtained measurement quantity to the base station.
Optionally, the receiving unit receives the beam management instruction sent by the first beam management module; the method comprises the following steps:
receiving a beam switching instruction sent by a base station, wherein the beam switching instruction comprises identification information of a target beam; correspondingly, the second processing unit executes corresponding operations according to the beam management instruction, including:
and switching the terminal to the target beam according to the identification information of the target beam.
Optionally, the receiving unit receives the beam management instruction sent by the first beam management module, and includes:
receiving a second beam scheduling instruction sent by a base station, wherein the second beam scheduling instruction comprises identification information of a target beam; correspondingly, the second processing unit executes corresponding operations according to the second beam scheduling instruction, including:
and scheduling the terminal to the target beam according to the identification information of the target beam.
Or, as another implementation manner, the receiving unit receives a beam management instruction sent by the first beam management module; the method comprises the following steps:
receiving a power control signaling sent by a base station; correspondingly, the second processing unit executes corresponding operations according to the beam management instruction, including:
and adjusting the beam power of the terminal according to the power control signaling.
The receiving unit receives the beam management instruction sent by the first beam management module, which may be one or more of the above instructions, or may perform other settings according to actual situations, and the embodiment of the present invention is not limited to this.
Example two:
fig. 3 is a schematic diagram of a base station and a terminal according to an embodiment of the present invention. This embodiment provides a base station, including a first beam management module, the first beam management module includes:
the parameter acquiring unit is used for acquiring network parameters;
the control unit is used for sending a control instruction to the first processing unit according to the acquired network parameters and/or sending a beam management instruction to the terminal according to the acquired network parameters;
and the first processing unit is used for executing corresponding beam operation according to the control instruction.
The first beam management module is separately configured on the user plane, or the first beam management module is configured on any one of a MAC (Medium Access Control) module, a RLC (Radio Link Control ) module, a PDCP (Packet Data Convergence Protocol) module, and a physical layer (PHY) module of the user plane.
Various aspects of each unit included in the first beam management module have been described in detail in the first embodiment, and specific reference is made to the content of the first embodiment, which is not described herein again in the embodiments of the present invention.
This embodiment also provides a terminal, including second beam management function module, correspond the setting with the first beam management function module that sets up in the base station, second beam management module includes:
the receiving unit is used for receiving the beam management instruction sent by the first beam management module;
and the second processing unit is used for executing corresponding operation according to the beam management instruction.
The second beam management module is separately configured on the user plane, or the second beam management module is configured on any one of a MAC (Medium Access Control) module, a RLC (Radio Link Control ) module, a PDCP (Packet Data Convergence Protocol) module, and a physical layer (PHY) module of the user plane.
Various aspects of each unit included in the second beam management module have been described in detail in the first embodiment, and specific reference is made to the content of the first embodiment, which is not described herein again in the embodiments of the present invention.
The present embodiment also provides a wireless communication system, including:
the base station comprises a first beam management module, a second beam management module and a first beam management module, wherein the first beam management module is used for acquiring network parameters, executing beam related operation according to the acquired network parameters and/or sending beam management instructions to the terminal according to the acquired network parameters;
and the terminal comprises a second beam management module, is arranged corresponding to the first beam management module, and is used for executing corresponding operation according to the beam management instruction sent by the first beam management module.
The first beam management module is independently arranged on a user plane, or the first beam management module is arranged on any one of an MAC module, an RLC module, a PDCP module and a PHY module of the user plane; and/or the second beam management module is separately arranged on the user plane, or the second beam management module is arranged on any one of a MAC module, an RLC module, a PDCP module and a PHY module of the user plane.
The sub-modules included in the first Beam management module according to the embodiment of the present invention are described in detail below with reference to fig. 4.
In this embodiment, the parameter obtaining unit is configured to obtain a network parameter;
the method comprises the following steps: obtaining pre-stored network parameters, and/or obtaining network parameters measured in real time.
The control unit includes: the system comprises a beam measurement sub-module, a beam scheduling sub-module, a beam monitoring and switching sub-module, a beam cooperation sub-module and a beam power control sub-module;
the beam measuring submodule is used for sending a signal for measuring the channel quality to a terminal;
as another implementation of this embodiment, the beam measurement sub-module may not send the measured values directly, and may process the results, such as filtering the results over a period of time.
The beam scheduling sub-module is used for sending a first beam scheduling instruction to the first processing unit according to the network parameters acquired by the parameter acquisition module and/or sending a second beam scheduling instruction to the terminal;
and the specific beam scheduling submodule sends a first beam scheduling instruction to the first processing unit and/or sends a second beam scheduling instruction to the terminal according to the pre-stored network parameters and a certain scheduling algorithm (strategy). The scheduling of Beam is divided into two aspects: one is scheduling beam (mainly aiming at the base station side) transmitting time, frequency, grouping and other information, and the base station makes a decision; the other is the priority of the base station scheduling beam (combined with the scheduling of the terminal). Because the base station transmits the beam decided by the base station, when the transmitted beam is used for scheduling the terminal, signaling is needed to inform the terminal to identify the scheduled beam.
The beam monitoring and switching submodule is used for sending a beam switching instruction to a terminal when a signal suddenly fades according to the network parameters acquired by the parameter acquisition module and the channel quality measurement quantity measured by the beam measuring submodule;
handover trigger causes, including: 1. finding that the beam of the current service base station of the terminal has a problem (the problem can be found by the terminal and reported to the base station, and the base station can also find the problem by itself); 2. due to the terminal moving, the quality of the original beam signal is not optimal, and the service needs to be continued by switching to the optimal beam.
The Beam handover generally refers to the base station side Beam handover, and may be triggered according to the network parameters acquired by the parameter acquisition module, such as the signal quality of Beam, or according to information (link problem discovery, signal quality report, etc.) fed back by the terminal.
In this embodiment, the Beam monitoring and switching sub-module needs to acquire the target Beam information included in the network parameters acquired by the parameter acquisition module. In the present embodiment, information exchange with a base station to which a target beam belongs (and a source base station are not necessarily the same base station) is involved.
The beam cooperation submodule is used for sending a beam cooperation instruction to the first processing unit according to the network parameters acquired by the parameter acquisition module and sending a beam interference coordination instruction to the first processing unit according to the parameters between beams acquired by the beam measurement submodule;
the beam cooperation sub-module is mainly used for coordination among beams at the base station side, because coordination among beams under different cells of different eNBs may be involved. The network parameters acquired by the parameter acquisition module comprise: power information and directivity information of the relevant beam, and the like.
The Beam power control sub-module is used for distributing the power on the full bandwidth among more than one Beam, sending a power distribution instruction to the first processing unit and/or sending a power control signaling to the terminal.
For downlink power control, that is, adjusting power allocation at the base station side, and base station decision, it is necessary to estimate link loss by using measurement information (the measurement information is generally RSRP and the like reported by a terminal measurement, and may be, for example, cell level, beam level, or UE level, and different levels of precision are different, this embodiment does not limit, and certainly may be other information);
for the uplink power control, namely the power of the terminal side is adjusted, the base station makes a decision and adjusts the power of the terminal side by issuing a control signaling. (the uplink loss needs to be inferred by the measurement information, which may be based on the downlink measurement information similar to RSRP reported by the terminal, or may be directly estimated by the base station side through the uplink signal of the terminal).
It can be seen that, in one embodiment, the Beam power control sub-module allocates power over the full bandwidth among more than one Beam as: according to the network parameters acquired by the parameter acquisition module or the channel quality measurement quantity measured by the beam measurement submodule, the power on the full bandwidth is distributed among more than one beam,
of course, in other embodiments, the sub-modules included in the control unit may be any combination of the above sub-modules, which depends on the actual use requirement, and the present invention is not limited thereto. Of course, in practical applications, some operations such as beam addition/release/update may also need to be performed, so that the sub-module included in the control unit may also include other sub-modules, which is not limited in the embodiment of the present invention.
Example three:
referring to fig. 5, a flowchart of a method for implementing user plane function enhancement in a wireless communication system according to an embodiment of the present invention is shown, and applied to a base station, the method includes the following steps:
and 502, executing corresponding beam related operation according to the acquired network parameters, and/or sending beam management instructions to the terminal according to the acquired network parameters.
In step 501, the acquiring of the network parameters includes acquiring pre-stored network parameters and/or acquiring network parameters measured in real time.
The executing of the corresponding beam related operation in step 502 includes: performing one or any combination of two or more of the following operations:
beam scheduling, beam cooperation, beam interference coordination and beam power distribution.
The embodiment also provides a method for realizing user plane function enhancement in a wireless communication system, which is applied to a terminal and comprises the following steps:
receiving a beam management instruction sent by a base station;
and executing corresponding operation according to the beam management instruction.
Optionally, the receiving, by the terminal, the beam management instruction sent by the base station includes: receiving a measurement channel quality signaling sent by a base station; correspondingly, the corresponding operation is executed according to the beam management instruction, and the method comprises the following steps:
and measuring the channel indicated in the measured channel quality signaling, and sending the obtained measurement quantity to the base station.
Optionally, the receiving the beam management instruction sent by the base station includes:
receiving a beam switching instruction sent by a base station, wherein the beam switching instruction comprises identification information of a target beam; correspondingly, the corresponding operation is executed according to the beam management instruction, and the method comprises the following steps:
and switching the terminal to the target beam according to the identification information of the target beam.
Optionally, the receiving the beam management instruction sent by the base station includes:
receiving a power control signaling sent by a base station; correspondingly, the corresponding operation is executed according to the beam management instruction, and the method comprises the following steps:
and adjusting the beam power of the terminal according to the power control signaling.
Optionally, the receiving the beam management instruction sent by the base station includes:
receiving a second beam scheduling instruction sent by a base station, wherein the second beam scheduling instruction comprises identification information of a target beam; correspondingly, the corresponding operation is executed according to the beam management instruction, and the method comprises the following steps:
and scheduling the terminal to the target beam according to the identification information of the target beam.
The embodiment of the invention provides a future communication system, aiming at the beam management requirement in the future communication system, a beam management module is added in a user plane, and the beam management module can exist in the user plane independently and can be fused with other functional modules of the user plane.
The following is illustrative of the specific application by way of example.
The application example is described by taking an LTE system as an example, as shown in fig. 6. The network architecture is a two-level architecture of a Central Unit (CU) and a Distributed Unit (DU), where the MAC functions are located in the CUs and all the functions of the physical layer are located in the distributed unit. The beam management function mentioned in the application example is located in layer 2 of the user plane protocol architecture: in the MAC layer, i.e. the beam management function, is located in the central unit CU.
In this embodiment, the first beam management module is located in the MAC layer, and may be used alone as a functional module of a MAC, or may be integrated with other functions of the MAC layer, for example, the first beam management module is integrated with a scheduling function, that is, beam management is used as a part of the scheduling function.
And the beam measurement sub-module is used for obtaining beam measurement quantity related to the channel quality.
The beam measurement quantity related to the channel quality comprises one or any combination of two or more of the following measurement quantities: CQI (Channel Quality Indicator), PMI (Precoding Matrix Indicator), RI (Rank Indication), RSRP (Reference Signal Received Power), and the like. Of course, the measurement quantity may also be other relevant content, and may be specifically configured and selected according to actual situations, and the embodiment of the present invention is not limited herein.
The related signaling for specifically executing the measurement may be issued by a Control plane signaling configuration, and the measurement related signaling of the LTE is issued by an RRC (Radio Resource Control) signaling configuration (the RRC signaling is the Control plane signaling) at present;
the user plane of the base station side and the user plane of the terminal side can support the function, and the specific implementation is as follows: the base station sends a beam measurement instruction to the terminal, and the terminal reports the obtained measurement quantity to the base station after measuring the channel quality. For example, the measurement configuration may be issued through MAC CE signaling, and meanwhile, a signaling for beam measurement reporting is added in the terminal side user plane.
As another embodiment, a signaling for indicating beam measurement is added in the user plane, and both the base station side and the terminal side support the function, which is specifically implemented as follows: the base station sends a beam measurement instruction to the terminal, and the terminal reports the obtained measurement quantity to the base station after measuring the channel quality.
The beam scheduling submodule is used for sending a beam scheduling instruction to a transmitting unit according to the prestored network parameters acquired by the parameter acquisition module and the beam measurement quantity related to the channel quality acquired by the beam measurement submodule;
the scheduling of multiple beams is performed, in one case, in a future NR system, multiple beams may exist on each RAN (Radio Access Network) side and UE side, for example, processing capability of the RAN side cannot guarantee that beams in all directions can be transmitted at one time (360 degrees, tens of beams may be transmitted at a time, and processing capability is limited to transmit, for example, 8 beams at a time), which may relate to which 8 beams are transmitted each time, how to group, and which packet is scheduled each time, which is one aspect that scheduling may relate;
alternatively, there may be only one user under a beam, or there may be multiple users, and scheduling a user is equal to scheduling a beam. Therefore, the priority problem of beams involved in scheduling may also consider interference coordination (beams in some directions need to be staggered and cannot collide) and the like during scheduling;
in the embodiment of the invention, a plurality of beams are arranged at the base station side, and from a few to hundreds of beams are possible; there may be more beams on the terminal side, but the number is generally much smaller than on the base station side. It can be seen that in a future communication system, a base station side may transmit multiple beams, and a terminal side may also have multiple beams aligned to them, and the beams become a spatial resource, so how to select the beams and how to schedule the beams (schedule transmission time and transmission frequency) becomes one of the necessary contents for beam management.
The beam monitoring and switching submodule is used for acquiring the quality of the monitored beam signal, sending a switching instruction to a transmitting unit according to the channel quality measurement quantity measured by the beam measuring submodule when the signal is suddenly faded, and switching the terminal corresponding to the beam with the faded signal to other beams;
regarding beam monitoring, in a future communication system, a high-frequency band causes a signal to suddenly fade frequently due to a wireless channel environment, so that the quality of the beam signal needs to be monitored in time, and beam switching or other processing can be performed in time when sudden deep fading occurs, so that performance is not lost;
regarding beam handover, in future communication systems, sudden fading of signals in a high frequency band due to the wireless channel environment is frequent, and therefore, for a terminal, it may be ready to switch to other beams at any time to counter such sudden deep fading, and therefore, a user plane needs to add auxiliary signaling and related processing functions (including handover decision, handover preparation, handover implementation, etc.) related to beam handover.
One of the specific handover methods may be a bear split (bearer split) method. Fig. 7 is a schematic diagram of a bear split architecture of LTE dual connectivity. The specific switching method comprises the following steps: when a link fails, it may be handed off to another link that has not failed.
As shown in fig. 7, the bear split is: the PDCP is divided into two branches, one branch is taken from the MeNB (Master eNB, main base station), and the other branch is taken from the SeNB (Secondary eNB, Secondary base station), which are backup to each other. The anchor point is the PDCP layer in the MeNB, i.e. there is no PDCP layer in the SeNB. In the figure, S1 is an interface between RAN (Radio access Network) and CN (Core Network).
The beam cooperation submodule is used for sending a beam cooperation instruction to the transmitting unit according to the prestored network parameters acquired by the parameter acquisition module and sending a beam interference coordination instruction to the transmitting unit according to the interference parameters between beams acquired by the beam measurement submodule;
the cooperation and interference coordination between beams may be different according to the architecture, and may include the following two cases:
in the first case: the CoMP technology similar to that in LTE can be adopted, and a plurality of cooperative beams can send the same data, so that the reliability of data receiving is enhanced;
in the second case: the CS/CB, i.e. interference avoidance, may be adopted, when a UE on a beam is scheduled (occupies part of resources), if the beam UE has strong interference (called strong interference beam), then some/all resources of the beam may be set to be prohibited (power reduction, etc.) similarly.
The cooperation between beams, especially when there is Beam cooperation between DUs as shown in fig. 7,
a similar "Xn" interface may be defined between DUs to facilitate the transmission of the cooperation information.
In the LTE system, there is an "X2" interface between base stations for communicating some information between the base stations, and this application example defines an X2 interface for communicating information between DUs, which may be named Xn.
Of course, in a specific application, there are other coordination means, and the present invention is not described in detail herein.
In a future communication system, a base station side and a terminal side may generate a plurality of beams, and in addition, site planning is dense, one link may be interfered by a plurality of beams from a local area and a neighboring area, so that interference coordination among the beams becomes necessary; in addition, in order to meet the requirements of large capacity or reliability of the system, cooperative transmission between beams needs to be considered.
And the Beam power control sub-module is used for distributing the power on the full bandwidth among more than one Beam.
There is typically some limit to the power over the full bandwidth, which may be more than one beam, especially when digital or hybrid beamforming is employed. This requires more than one beam of power to be allocated.
The Beam management function provided by the embodiment of the present invention is located in the user plane, and is not limited to be located in a specific position of the user plane, and in addition, for the central unit-distributed unit network architecture, the Beam management function is not limited to be located in a specific position of the central unit and the distributed unit. The embodiment of the invention adds the beam management function in the user plane, so that the function of the user plane can meet the beam management requirement in a future communication system.
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 embodiments of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (23)
1. An apparatus for implementing user plane functionality enhancement in a wireless communication system, the apparatus being disposed in a base station, comprising:
the first beam management module comprises a parameter acquisition unit, a control unit and a first processing unit:
the parameter acquiring unit is used for acquiring network parameters;
the control unit is used for sending a control instruction to the first processing unit according to the acquired network parameters and sending a beam management instruction to the terminal according to the acquired network parameters, wherein the beam management instruction and the control instruction are used for controlling beam scheduling, the beam scheduling comprises beam scheduling and priority scheduling, and the beam scheduling comprises transmission time scheduling, frequency scheduling and packet scheduling;
and the first processing unit is used for executing corresponding beam operation according to the control instruction.
2. The apparatus of claim 1, wherein the parameter obtaining unit obtains the network parameters, comprising: obtaining pre-stored network parameters, and/or obtaining network parameters measured in real time.
3. The apparatus of claim 1, wherein the control unit comprises one or any combination of more than one of the following sub-modules: the system comprises a Beam measuring sub-module, a Beam scheduling sub-module, a Beam monitoring and switching sub-module, a Beam cooperation sub-module and a Beam power control sub-module;
the beam measuring submodule is used for sending a signal for measuring the channel quality to a terminal;
the beam scheduling submodule is used for sending a first beam scheduling instruction to the first processing unit and/or sending a second beam scheduling instruction to the terminal according to the network parameters acquired by the parameter acquisition module;
the beam monitoring and switching submodule is used for sending a beam switching instruction to a terminal when a signal suddenly fades according to the network parameters acquired by the parameter acquisition module and the channel quality measurement quantity measured by the beam measuring submodule;
the beam cooperation submodule is used for sending a beam cooperation instruction to the first processing unit according to the network parameters acquired by the parameter acquisition module and sending a beam interference coordination instruction to the first processing unit according to the parameters between beams acquired by the beam measurement submodule;
the Beam power control sub-module is used for distributing the power on the full bandwidth among more than one Beam, sending a power distribution instruction to the first processing unit and/or sending a power control signaling to the terminal.
4. The apparatus of claim 1, wherein the first beam management module is separately provided in a user plane, or the first beam management module is provided in any one of a medium access control MAC module, a radio link control RLC module, a packet data convergence protocol PDCP module, and a physical layer PHY module in the user plane.
5. The utility model provides a realize device of user plane function reinforcing in wireless communication system which characterized in that, the device sets up in the terminal, includes second beam management module, corresponds the setting with the first beam management module that sets up in the base station, second beam management module includes:
a receiving unit, configured to receive a beam management instruction sent by the first beam management module, where the beam management instruction is used to control beam scheduling, where the beam scheduling includes beam scheduling and priority scheduling, and the beam scheduling includes transmission time scheduling, frequency scheduling, and packet scheduling;
and the second processing unit is used for executing corresponding operation according to the beam management instruction.
6. The apparatus according to claim 5, wherein the receiving unit receives the beam management instruction transmitted by the first beam management module; the method comprises the following steps:
receiving a measurement channel quality signaling sent by a base station; correspondingly, the second processing unit executes corresponding operations according to the beam management instruction, including:
and measuring the channel indicated in the measured channel quality signaling, and sending the obtained measurement quantity to the base station.
7. The apparatus according to claim 5, wherein the receiving unit receives the beam management instruction transmitted by the first beam management module; the method comprises the following steps:
receiving a beam switching instruction sent by a base station, wherein the beam switching instruction comprises identification information of a target beam; correspondingly, the second processing unit executes corresponding operations according to the beam management instruction, including:
and switching the terminal to the target beam according to the identification information of the target beam.
8. The apparatus according to claim 5, wherein the receiving unit receives the beam management instruction transmitted by the first beam management module; the method comprises the following steps:
receiving a power control signaling sent by a base station; correspondingly, the second processing unit executes corresponding operations according to the beam management instruction, including:
and adjusting the beam power of the terminal according to the power control signaling.
9. The apparatus according to claim 5, wherein the receiving unit receives the beam management instruction sent by the first beam management module, and comprises:
receiving a second beam scheduling instruction sent by a base station, wherein the second beam scheduling instruction comprises identification information of a target beam; correspondingly, the second processing unit executes corresponding operations according to the second beam scheduling instruction, including:
and scheduling the terminal to the target beam according to the identification information of the target beam.
10. The apparatus of claim 5, wherein the second beam management module is separately provided at the user plane, or is provided at any one of a MAC module, an RLC module, a PDCP module, and a PHY module of the user plane.
11. A base station, characterized in that it comprises means for implementing user plane functionality enhancement in a wireless communication system according to any of claims 1 to 4.
12. A terminal, characterized in that it comprises means for implementing user plane functionality enhancement in a wireless communication system according to any of claims 5 to 10.
13. A wireless communication system, comprising:
the base station comprises a first beam management module, a second beam management module and a first beam management module, wherein the first beam management module is used for acquiring network parameters, executing beam related operation according to the acquired network parameters and sending beam management instructions to the terminal according to the acquired network parameters;
the terminal comprises a second beam management module, is arranged corresponding to the first beam management module and is used for executing corresponding operation according to the beam management instruction sent by the first beam management module;
the beam management instruction is used for controlling beam scheduling, wherein the beam scheduling comprises beam scheduling and priority scheduling, and the beam scheduling comprises transmission time scheduling, frequency scheduling and packet scheduling.
14. The wireless communication system of claim 13, wherein the first beam management module is separately provided at the user plane, or the first beam management module is provided at any one of a MAC module, an RLC module, a PDCP module, and a PHY module of the user plane.
15. The wireless communication system of claim 13, wherein the second beam management module is separately provided at the user plane, or the second beam management module is provided at any one of a MAC module, an RLC module, a PDCP module, and a PHY module of the user plane.
16. A method for implementing user plane functionality enhancement in a wireless communication system, the method comprising:
acquiring network parameters;
and according to the obtained network parameters, a corresponding beam related operation is executed, and a beam management instruction is sent to the terminal according to the obtained network parameters, wherein the beam management instruction is used for controlling beam scheduling, the beam scheduling comprises beam scheduling and priority scheduling, and the beam scheduling comprises transmitting time scheduling, frequency scheduling and grouping scheduling.
17. The method of claim 16, wherein the obtaining network parameters comprises: obtaining pre-stored network parameters, and/or obtaining network parameters measured in real time.
18. The method of claim 16, wherein said performing a corresponding beam-related operation comprises: performing one or any combination of two or more of the following operations:
beam scheduling, beam cooperation, beam interference coordination and beam power distribution.
19. A method for implementing user plane functionality enhancement in a wireless communication system, the method comprising:
receiving a beam management instruction sent by a base station, wherein the beam management instruction is used for controlling beam scheduling, the beam scheduling comprises beam scheduling and priority scheduling, and the beam scheduling comprises transmission time scheduling, frequency scheduling and packet scheduling;
and executing corresponding operation according to the beam management instruction.
20. The method of claim 19, wherein receiving the beam management command sent by the base station comprises: receiving a measurement channel quality signaling sent by a base station; correspondingly, the corresponding operation is executed according to the beam management instruction, and the method comprises the following steps:
and measuring the channel indicated in the measured channel quality signaling, and sending the obtained measurement quantity to the base station.
21. The method of claim 19, wherein receiving the beam management command sent by the base station comprises:
receiving a beam switching instruction sent by a base station, wherein the beam switching instruction comprises identification information of a target beam; correspondingly, the corresponding operation is executed according to the beam management instruction, and the method comprises the following steps:
and switching the terminal to the target beam according to the identification information of the target beam.
22. The method of claim 19, wherein receiving the beam management command sent by the base station comprises:
receiving a power control signaling sent by a base station; correspondingly, the corresponding operation is executed according to the beam management instruction, and the method comprises the following steps:
and adjusting the beam power of the terminal according to the power control signaling.
23. The method of claim 19, wherein receiving the beam management command sent by the base station comprises:
receiving a second beam scheduling instruction sent by a base station, wherein the second beam scheduling instruction comprises identification information of a target beam; correspondingly, the corresponding operation is executed according to the beam management instruction, and the method comprises the following steps:
and scheduling the terminal to the target beam according to the identification information of the target beam.
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| CN201610875557.9A CN107888244B (en) | 2016-09-30 | 2016-09-30 | Method and device for realizing user plane function enhancement in wireless communication system |
| PCT/CN2017/104831 WO2018059582A1 (en) | 2016-09-30 | 2017-09-30 | Method and apparatus for implementing user plane function enhancement in wireless communication system |
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| CN201610875557.9A CN107888244B (en) | 2016-09-30 | 2016-09-30 | Method and device for realizing user plane function enhancement in wireless communication system |
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| CN110677874B (en) * | 2019-09-16 | 2021-08-24 | Oppo广东移动通信有限公司 | Transmission rate control method, terminal and computer storage medium |
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| CN107888244A (en) | 2018-04-06 |
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