CN111294822A - Method and device for realizing virtual cell and computer readable storage medium - Google Patents
Method and device for realizing virtual cell and computer readable storage medium Download PDFInfo
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- CN111294822A CN111294822A CN201811504354.4A CN201811504354A CN111294822A CN 111294822 A CN111294822 A CN 111294822A CN 201811504354 A CN201811504354 A CN 201811504354A CN 111294822 A CN111294822 A CN 111294822A
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000012545 processing Methods 0.000 claims abstract description 15
- 238000005259 measurement Methods 0.000 claims description 27
- 238000001514 detection method Methods 0.000 claims description 3
- 230000011664 signaling Effects 0.000 abstract description 6
- 210000004027 cell Anatomy 0.000 description 120
- 238000005516 engineering process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 210000004460 N cell Anatomy 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/002—Transmission of channel access control information
- H04W74/008—Transmission of channel access control information with additional processing of random access related information at receiving side
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Abstract
Disclosed herein are a method, an apparatus and a computer-readable storage medium for implementing a virtual cell, including: detecting whether a User Equipment (UE) moves from a home cell to another cell among virtual cells; and when the UE is detected to move from the home cell to another cell, configuring the high-layer configuration parameters and the special resources of the other cell for the UE so that the other cell schedules the UE. It can be seen from the embodiments of the present invention that, when it is detected that the UE moves from the home cell to another cell, a high-level configuration parameter and a dedicated resource of another cell are configured for the UE, so that the UE is scheduled by the other cell, thereby avoiding cell switching when the UE moves between dense cells, avoiding a large amount of switching signaling processing at the base station side, and improving user experience.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for implementing a virtual cell, and a computer-readable storage medium.
Background
An Ultra-Dense Network (UDN) is one of core technologies of the 5th generation mobile communication Network (5G), and by deploying wireless access points of a certain scale, the technology greatly reduces the access distance of users, and improves the throughput of users and the throughput of areas.
However, as Physical-layer Cell identities (PCIs) of different cells are different, as the deployment of the cells becomes denser, when a User Equipment (UE) moves between dense cells, a series of steps such as Cell re-access, Cell resynchronization, access message reception and the like are required to be frequently performed, so that a large amount of switching signaling processing at a base station side is brought, and service acquisition of the UE is affected.
Disclosure of Invention
In order to solve the above technical problem, embodiments of the present invention provide a method, an apparatus, and a computer-readable storage medium for implementing a virtual cell, which can avoid cell handover when a UE moves between dense cells, thereby avoiding a large amount of handover signaling processing performed at a base station side, and improving user experience.
To achieve the object of the embodiments of the present invention, an embodiment of the present invention provides a method for implementing a virtual cell, including:
detecting whether the UE moves from a home cell to another cell in the virtual cells;
and when the UE is detected to move from the home cell to the other cell, configuring the UE with the higher-layer configuration parameters and the special resources of the other cell so as to enable the other cell to schedule the UE.
The embodiment of the invention also provides a method and a device for realizing the virtual cell, which comprise the following steps:
a detection module, configured to detect whether the UE moves from a home cell in the virtual cell to another cell;
a processing module, configured to configure a parameter of the another cell for the UE when it is detected that the UE moves from the home cell to the another cell, so that the another cell schedules the UE.
The embodiment of the invention also provides a method and a device for realizing the virtual cell, which comprise the following steps: a processor and a memory, wherein the memory has stored therein the following instructions executable by the processor:
detecting whether the UE moves from a home cell to another cell in the virtual cells;
and when the UE is detected to move from the home cell to the other cell, configuring the UE with the higher-layer configuration parameters and the special resources of the other cell so as to enable the other cell to schedule the UE.
An embodiment of the present invention further provides a computer-readable storage medium, where the storage medium stores computer-executable instructions, and the computer-executable instructions are configured to perform the following steps:
detecting whether the UE moves from a home cell to another cell in the virtual cells;
and when the UE is detected to move from the home cell to the other cell, configuring the UE with the higher-layer configuration parameters and the special resources of the other cell so as to enable the other cell to schedule the UE.
When the UE is detected to move from the home cell to the other cell, the UE is configured with the high-level configuration parameters and the special resources of the other cell so as to schedule the UE by the other cell, so that the cell switching is avoided when the UE moves among dense cells, a large amount of switching signaling processing is avoided at a base station side, and the user experience is improved.
Additional features and advantages of embodiments of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of the invention. The objectives and other advantages of the embodiments of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the examples of the application do not constitute a limitation of the embodiments of the invention.
Fig. 1 is a flowchart illustrating a method for implementing a virtual cell according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating another implementation method of a virtual cell according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an apparatus for implementing a virtual cell according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the 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.
The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.
An embodiment of the present invention provides a method for implementing a virtual cell, as shown in fig. 1, the method includes:
It should be noted that the cell virtualization technology is a technology for changing the traditional cell design concept, combining multiple access stations with small coverage areas into one virtual large cell in control, and scheduling the multiple access stations as resources of the virtual cell, where a virtual cell established by using the cell virtualization technology exists as a cell. The home cell described in the embodiment of the present invention is a cell to which the UE actually belongs before moving in the virtual cell, and the other cell is a cell to which the UE actually belongs after moving in the virtual cell.
It should be further noted that the embodiment of the present invention may be executed by a management module in the virtual cell, where the management module is capable of managing the virtual cell.
According to the method for implementing the virtual cell provided by the embodiment of the invention, when the UE is detected to move from the home cell to another cell, the UE is configured with the high-level configuration parameters and the special resources of the other cell, so that the other cell schedules the UE, a large amount of switching signaling processing at the base station side is avoided, and the user experience is improved.
Optionally, before detecting whether the UE moves from the home cell in the virtual cell to another cell, the method further includes:
and determining the home cell of the UE from the virtual cells.
And configuring the high-layer configuration parameters and the special resources of the home cell for the UE.
Optionally, determining a home cell of the UE from the virtual cells includes:
and acquiring the measured value of the random access Preamble sent by each cell to the UE in the virtual cell.
And acquiring a cell corresponding to the maximum measurement value as a home cell of the UE.
Optionally, the measurement value of the random access preamble comprises: a received power measurement of the random access preamble, or a signal to interference plus noise ratio measurement of the random access preamble.
Optionally, before determining the home cell of the UE from the virtual cells, the method further includes:
a plurality of cells under a Centralized Unit (CU) are acquired to form a virtual cell.
The PCI is configured for the virtual cell.
Optionally, the dedicated resource is used for scheduling a Physical Uplink Shared Channel (PUSCH), a Physical Uplink Control Channel (PUCCH), a Channel Sounding Reference Signal (SRS), a Physical Downlink Shared Channel (PDSCH), and a Physical Downlink Control Channel (PDCCH).
The embodiment of the invention also provides a method for realizing the virtual cell, which comprises the following steps:
step 1, dividing N cells belonging to the same CU into a virtual cell, wherein the value of N can be selected according to hardware capability, calculation complexity and the like, the maximum value of N is the maximum configurable cell number under one CU, and one cell belonging to one virtual cell is called a Transmission Point (TP).
And 2, only one PCI is configured for one virtual cell, only one large cell can be seen from the perspective of the UE, but N TPs in the virtual cell cannot be seen, and channels and messages related to the PCI in the virtual cell need to be uniformly configured and scheduled by the virtual cell.
And step 3, when the UE is accessed, the UE is attributed to one of N TPs according to a certain measurement value, wherein the TP can be the strongest TP of the N TPs and also can be the TP selected by other principles, and the measurement value can be obtained by measuring the Preamble sent by each TP to the UE. The strongest TP may be the TP with the largest measured value of the received power of the Preamble or the largest measured value of the signal to interference plus noise ratio of the Preamble.
And 4, configuring high-level configuration parameters of the TP to which the UE belongs and special resources of the UE for scheduling PUSCH, PUCCH, SRS, PDSCH and PDCCH, wherein the high-level configuration parameters mainly comprise the high-level configuration parameters special for the UE used by each channel or signal.
And step 5, each TP independently schedules the UE or each TP cooperatively schedules the UE, wherein the cooperative scheduling refers to that the TPs belonging to one virtual cell can jointly schedule the UE according to a certain interference coordination principle.
And 6, when the UE moves from the TP belonging to the same virtual cell to another TP, cell switching is not needed, and only the parameters of the moved cell are reconfigured for the UE.
It should be noted that the method for implementing a virtual cell provided in the embodiments of the present invention is a completely new method for implementing a virtual cell, and the method avoids frequent switching of UEs between cells.
An embodiment of the present invention further provides a method for implementing a virtual cell, as shown in fig. 2, including:
And step 204, configuring high-layer configuration parameters and dedicated resources of the UE1 for the UE1 according to the parameters and resources of the TP1, and scheduling the PUSCH, PUCCH, SRS, PDSCH and PDCCH.
In step 206, when the UE1 moves from TP1 to TP2, cell switching is not required, and only the parameters of the corresponding TP2 in step S104 need to be reconfigured for the UE1, and thereafter the UE1 is scheduled independently by TP 2.
An embodiment of the present invention further provides an apparatus for implementing a virtual cell, as shown in fig. 3, including:
a detecting module 31, configured to detect whether the UE moves from a home cell in the virtual cell to another cell.
A processing module 32, configured to configure a higher layer configuration parameter and a dedicated resource of the other cell for the UE when it is detected that the UE moves from the home cell to the other cell, so that the other cell schedules the UE.
Optionally, the processing module 32 is further configured to:
determining a home cell of the UE from the virtual cells.
Configuring the high-level configuration parameters and the special resources of the home cell for the UE.
Optionally, the processing module 32 is specifically configured to:
and acquiring the measurement value of the random access preamble sent by each cell in the virtual cell to the UE.
And acquiring a cell corresponding to the maximum measurement value as a home cell of the UE.
Optionally, the measurement value of the random access preamble comprises: a received power measurement of the random access preamble, or a signal to interference plus noise ratio measurement of the random access preamble.
Optionally, the processing module 32 is further configured to:
and acquiring a plurality of cells under a centralized unit to form the virtual cell.
And configuring the PCI for the virtual cell.
Optionally, the dedicated resources are used for scheduling PUSCH, PUCCH, SRS, PDSCH and PDCCH.
According to the virtual cell implementation device provided by the embodiment of the invention, when the UE is detected to move from the home cell to another cell, the UE is configured with the high-level configuration parameters and the special resources of the other cell, so that the other cell schedules the UE, and therefore, cell switching is avoided when the UE moves among dense cells, a large amount of switching signaling processing is avoided at the base station side, and user experience is improved.
In practical applications, the detection module 31 and the Processing module 32 are implemented by a Central Processing Unit (CPU), a Micro Processor Unit (MPU), a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), or the like in a device for implementing virtual cells.
The embodiment of the present invention further provides an apparatus for implementing a virtual cell, including a memory and a processor, where the memory stores the following instructions executable by the processor:
it is detected whether the UE moves from a home cell in the virtual cells to another cell.
And when the UE is detected to move from the home cell to another cell, configuring the high-layer configuration parameters and the special resources of the other cell for the UE so that the other cell schedules the UE.
Optionally, the memory further stores the following instructions executable by the processor:
and determining the home cell of the UE from the virtual cells.
And configuring the high-layer configuration parameters and the special resources of the home cell for the UE.
Optionally, the memory has stored therein the following instructions executable by the processor:
and acquiring the measurement value of the random access preamble sent by each cell in the virtual cell to the UE.
And acquiring a cell corresponding to the maximum measurement value as a home cell of the UE.
Optionally, the measurement value of the random access preamble comprises: a received power measurement of the random access preamble, or a signal to interference plus noise ratio measurement of the random access preamble.
Optionally, the memory further stores the following instructions executable by the processor:
a plurality of cells under a centralized unit are acquired to form a virtual cell.
The PCI is configured for the virtual cell.
Optionally, dedicated resources are used for scheduling PUSCH, PUCCH, SRS, PDSCH and PDCCH.
An embodiment of the present invention further provides a computer-readable storage medium, where the storage medium stores computer-executable instructions, and the computer-executable instructions are configured to perform the following steps:
it is detected whether the UE moves from a home cell in the virtual cells to another cell.
And when the UE is detected to move from the home cell to another cell, configuring the high-layer configuration parameters and the special resources of the other cell for the UE so that the other cell schedules the UE.
Optionally, the computer-executable instructions further perform the steps of:
and determining the home cell of the UE from the virtual cells.
And configuring the high-layer configuration parameters and the special resources of the home cell for the UE.
Optionally, the computer executable instructions specifically perform the steps of:
and acquiring the measurement value of the random access preamble sent by each cell in the virtual cell to the UE.
And acquiring a cell corresponding to the maximum measurement value as a home cell of the UE.
Optionally, the measurement value of the random access preamble comprises: a received power measurement of the random access preamble, or a signal to interference plus noise ratio measurement of the random access preamble.
Optionally, the computer-executable instructions further perform the steps of:
a plurality of cells under a centralized unit are acquired to form a virtual cell.
The PCI is configured for the virtual cell.
Optionally, the dedicated resources are used for scheduling PUSCH, PUCCH, SRS, PDSCH and PDCCH.
Although the embodiments of the present invention have been described above, the descriptions are only used for understanding the embodiments of the present invention, and are not intended to limit the embodiments of the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the embodiments of the invention as defined by the appended claims.
Claims (10)
1. A method for implementing a virtual cell includes:
detecting whether User Equipment (UE) moves from a home cell in a virtual cell to another cell;
and when the UE is detected to move from the home cell to the other cell, configuring the UE with the higher-layer configuration parameters and the special resources of the other cell so as to enable the other cell to schedule the UE.
2. The method of claim 1, wherein before detecting whether the UE moves from a home cell to another cell in the virtual cell, the method further comprises:
determining a home cell of the UE from the virtual cells;
configuring the high-level configuration parameters and the special resources of the home cell for the UE.
3. The method of claim 2, wherein the determining the home cell of the UE from the virtual cells comprises:
acquiring a measurement value of a random access preamble sent by each cell in the virtual cells to the UE;
and acquiring a cell corresponding to the maximum measurement value as a home cell of the UE.
4. The method of claim 3, wherein the measurement values of the random access preamble code comprise: a received power measurement of the random access preamble, or a signal to interference plus noise ratio measurement of the random access preamble.
5. The method of claim 2, wherein before determining the home cell of the UE from the virtual cells, the method further comprises:
forming a virtual cell by a plurality of cells under a centralized unit;
and configuring a Physical Cell Identity (PCI) for the virtual cell.
6. The implementation method of claim 1 or 2, wherein the dedicated resources are used for scheduling a Physical Uplink Shared Channel (PUSCH), a Physical Uplink Control Channel (PUCCH), a channel Sounding Reference Signal (SRS), a Physical Downlink Shared Channel (PDSCH), and a Physical Downlink Control Channel (PDCCH).
7. An apparatus for implementing a virtual cell, comprising:
a detection module, configured to detect whether the UE moves from a home cell in the virtual cell to another cell;
a processing module, configured to configure a higher layer configuration parameter and a dedicated resource of the other cell for the UE when it is detected that the UE moves from the home cell to the other cell, so that the other cell schedules the UE.
8. The apparatus of claim 7, wherein the processing module is further configured to:
determining a home cell of the UE from the virtual cells;
configuring the high-level configuration parameters and the special resources of the home cell for the UE.
9. An apparatus for implementing a virtual cell, comprising: a processor and a memory, wherein the memory has stored therein the following instructions executable by the processor:
detecting whether the UE moves from a home cell to another cell in the virtual cells;
and when the UE is detected to move from the home cell to the other cell, configuring the UE with the higher-layer configuration parameters and the special resources of the other cell so as to enable the other cell to schedule the UE.
10. A computer-readable storage medium having stored thereon computer-executable instructions for performing the steps of:
detecting whether the UE moves from a home cell to another cell in the virtual cells;
and when the UE is detected to move from the home cell to the other cell, configuring the UE with the higher-layer configuration parameters and the special resources of the other cell so as to enable the other cell to schedule the UE.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022150938A1 (en) * | 2021-01-12 | 2022-07-21 | Lenovo (Beijing) Limited | Inter-cell multi-trp operation |
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