CN109391397B - Downlink compatible transmission method, device and computer readable storage medium - Google Patents
Downlink compatible transmission method, device and computer readable storage medium Download PDFInfo
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- CN109391397B CN109391397B CN201710678484.9A CN201710678484A CN109391397B CN 109391397 B CN109391397 B CN 109391397B CN 201710678484 A CN201710678484 A CN 201710678484A CN 109391397 B CN109391397 B CN 109391397B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0057—Physical resource allocation for CQI
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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Abstract
The invention discloses a downlink compatible transmission method, a downlink compatible transmission device and a computer readable storage medium, and relates to the technical field of wireless communication. The method comprises the following steps: performing time-frequency synchronization on the NR system and the LTE system; under the condition that the current frequency band is a shared frequency band of an NR system and an LTE system, dividing an RB with the same bandwidth as the NR system as a multiplexing RB, and scheduling a control channel or a CRS (cell-specific reference signal) but not scheduling a data channel in the multiplexing RB by the LTE system; and determining a reserved symbol according to the subcarrier interval of the NR system and the label of the OFDM symbol occupied by the LTE system, and transmitting a downlink signal of the NR system through multiplexing the OFDM symbols except the reserved symbol in the RB. The method and the device can realize the downlink compatible transmission of the LTE system and the NR system.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a downlink compatible transmission method, an apparatus, and a computer-readable storage medium.
Background
Standardization of 5G NR (New Radio Access Technology) is underway, and future NR systems may be deployed in high frequency bands. Since the coverage capability of early 5G NR deployment is poor, an NR system needs to be deployed in an existing low-frequency band of 4G LTE (Long Term Evolution). Thereby improving the coverage performance of the NR system by taking advantage of the coverage of low frequencies below 6 GHz.
In the related art, compatible transmission of 4G and 5G is to be achieved through co-frequency deployment of an NR system and an LTE system.
Disclosure of Invention
The inventors of the present invention have found that the following problems exist in the above-described related art: although the related art proposes the technical idea of LTE and NR co-frequency deployment, no specific and feasible compatible transmission technical scheme is always given. The present inventors have devised a solution to the above problems.
An object of the present invention is to provide a practical downlink compatible transmission scheme.
According to an embodiment of the present invention, a downlink compatible transmission method is provided, including: performing time-frequency synchronization on the NR system and the LTE system; dividing an RB (Resource Block) having the same bandwidth as the NR system as a multiplexing RB when a current frequency band is a shared frequency band of the NR system and the LTE system, where the LTE system schedules a control channel or transmits a CRS (Cell Reference Signal) within the multiplexing RB but does not schedule a data channel; and determining a reserved symbol according to the subcarrier interval of the NR system and the label of an OFDM (Orthogonal Frequency Division Multiplexing) symbol occupied by the LTE system, and transmitting the downlink signal of the NR system through the OFDM symbols except the reserved symbol in the Multiplexing RB.
Optionally, the subcarrier spacing of the NR system is an integer multiple of 15 KHz.
Optionally, will satisfy
The OFDM symbol n is determined as the reserved symbol, n is the label of the OFDM symbol in the multiplexing RB, m is the multiple of the relative 15KHz of the NR system subcarrier spacing, L is the label of the OFDM symbol occupied by the control channel of the LTE system or the label of the OFDM symbol used for sending the CRS of the LTE system, n and L are integers, and m is a positive integer.
Optionally, in a case that the NR system subcarrier interval is 15KHz, the downlink signal of the NR system is transmitted through resource elements REs, which are not used by the LTE system to transmit CRS, in the reserved symbol.
Optionally, the number of the reserved symbols is indicated by a coexistence indication bit in the broadcast information of the NR system.
According to another embodiment of the present invention, there is provided a downlink compatible transmission apparatus including: the time frequency synchronization module is used for performing time frequency synchronization on the NR system and the LTE system; a multiplexing resource determining module, configured to divide an RB with a same bandwidth as the NR system as a multiplexing RB when a current frequency band is a shared frequency band of the NR system and the LTE system, where the LTE system schedules a control channel or a CRS in the multiplexing RB but does not schedule a data channel; and the downlink signal transmission module is used for determining a reserved symbol according to the subcarrier interval of the NR system and the label of the OFDM symbol occupied by the LTE system, and transmitting the downlink signal of the NR system through the OFDM symbols except the reserved symbol in the multiplexing RB.
Optionally, the subcarrier spacing of the NR system is an integer multiple of 15 KHz.
Optionally, the downlink signal transmission module will satisfy
The OFDM symbol n is determined as the reserved symbol, n is the label of the OFDM symbol in the multiplexing RB, m is the multiple of the relative 15KHz of the NR system subcarrier spacing, L is the label of the OFDM symbol occupied by the control channel of the LTE system or the label of the OFDM symbol used for sending the CRS of the LTE system, and n, m and L are integers.
Optionally, the downlink signal transmission module transmits the downlink signal of the NR system through resource elements, REs, in the reserved symbols, which are not used by the LTE system for transmitting CRS, when the NR system subcarrier interval is 15 KHz.
Optionally, the number of the reserved symbols is indicated by a coexistence indication bit in the broadcast information of the NR system.
According to still another embodiment of the present invention, there is provided a downlink compatible transmission apparatus including: a memory and a processor coupled to the memory, the processor configured to execute the downlink compatible transmission method in any of the above embodiments based on instructions stored in the memory device.
According to still another embodiment of the present invention, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the downlink compatible transmission method in any one of the above embodiments.
One advantage of the present invention is that downlink compatible transmission of the LTE system and the NR system is achieved by setting a multiplexing RB of the LTE system and the NR system in a shared frequency band, and determining a symbol for transmitting an LTE signal and a symbol for transmitting an NR signal in the multiplexing RB according to a subcarrier interval of the NR system and an OFDM symbol occupied by the LTE system.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
The invention will be more clearly understood from the following detailed description, taken with reference to the accompanying drawings, in which:
fig. 1 shows a flowchart of an embodiment of a downlink compatible transmission method of the present invention.
Fig. 2 shows a schematic diagram of one embodiment of the occupation of resources by the LTE system in multiplexed RBs.
Fig. 3a shows a schematic diagram of an embodiment of the occupation of resources by the NR system in multiplexed RBs.
Fig. 3b shows a schematic diagram of another embodiment of the occupation of resources by the NR system in multiplexed RBs.
Fig. 4 is a block diagram showing an embodiment of a downlink compatible transmission apparatus of the present invention.
Fig. 5 is a block diagram showing another embodiment of the downstream compatible transmission apparatus of the present invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Fig. 1 shows a flowchart of an embodiment of a downlink compatible transmission method of the present invention.
As shown in fig. 1, in step 110, time-frequency synchronization is performed on the NR system and the LTE system. The NR system and the LTE system can be aligned on a time domain and a frequency domain through time-frequency synchronization, so that the frequency resources and the time resources can be uniformly distributed.
In step 120, in the case that the current frequency band is a shared frequency band of the NR system and the LTE system, an RB having the same bandwidth as the NR system is divided as a multiplexing RB.
The NR system may transmit the downlink signal through a white space band or a downlink frequency band of the LTE system. Therefore, in one embodiment, it can first determine whether the current frequency band is the shared frequency band, and then decide what mode to transmit the downlink signal of the NR system. The current transmission mode of the terminal may be indicated by a coexistence indication bit in the broadcast information according to the determination result. For example, two coexistence transmission modes 0 and 1 may be defined by the coexistence indication bit, which respectively correspond to the case where the current frequency band is a white space band and a shared frequency band. The transmission mode 0 may be that the NR system transmits the downlink signal without constraint; the transmission mode 0 may be that RBs having the same bandwidth as the NR system are divided as multiplexed RBs to transmit downlink signals of the NR system and control signals and CRSs of the LTE system.
For example, in the case that the current frequency band is a white space band, the terminal may be instructed to receive the downlink signal of the NR system according to transmission mode 0. In the case that the current frequency band is the shared frequency band, the terminal may be instructed to receive signals of the NR system and the LTE system according to transmission mode 1.
In step 130, a reserved symbol is determined according to the subcarrier spacing of the NR system and the index of the OFDM symbol occupied by the LTE system. To enable better adjacent frequency coexistence with the LTE system, the subcarrier spacing of the NR system may be an integer multiple of 15 KHz. E.g., 15KHz, 30KHz, etc. For example, the OFDM symbols may be labeled in such a way that one subframe is 1ms long. The NR system reservation symbol may be specifically determined according to the following embodiments.
In one embodiment, this may be satisfied
The OFDM symbol n is determined as a reserved symbol, n is the label of the OFDM symbol in the multiplexing RB, m is the multiple of the relative 15KHz of the NR system subcarrier spacing, L is the label of the OFDM symbol occupied by the control channel of the LTE system or the label of the OFDM symbol used for sending the CRS of the LTE system, n and L are integers, and m is a positive integer.
In step 140, the downlink signal of the NR system is transmitted by multiplexing OFDM symbols other than the reserved symbols in the RB.
Fig. 2 shows a schematic diagram of one embodiment of the occupation of resources by the LTE system in multiplexed RBs.
As shown in fig. 2, 15 symbols (reference numerals 0 to 14) in the multiplexed RB and CFI (standard Format Indicator) is 2, that is, the LTE system occupies the first 2 OFDM symbols (resource elements in symbols 0 and 1 filled with oblique lines in the drawing) in the multiplexed RB to transmit the control signal. The LTE system also transmits CRS with point-filled REs (Resource elements) in fig. 2, which are distributed in symbols 0, 1, 4, 7, 8, and 11. Therefore, in the case shown in fig. 2, L may take any one of values 0, 1, 4, 7, 8, or 11.
Fig. 3a shows a schematic diagram of an embodiment of the occupation of resources by the NR system in multiplexed RBs.
In one embodiment, as shown in fig. 3a, the OFDM subcarrier spacing phase of the NR system is 15KHz, that is, when m is equal to 1, n may be any one or more of 0 to 14. Therefore, when n is 2,
2 is not within the value range of L, so symbol 2 is not a reserved symbol. When n is equal to 4, the reaction is carried out,
4 is within the value range of L, so symbol 4 is a reserved symbol. The above judgment is performed on each possible value of n, and reserved symbols of 0, 1, 4, 7, 8 and 11 can be obtained. In this case, the symbols filled in the grid in fig. 3a are all reserved symbols, and the NR system can transmit the downlink signal only by multiplexing other symbols in the RB.
Fig. 3b shows a schematic diagram of another embodiment of the occupation of resources by the NR system in multiplexed RBs.
In another embodiment, as shown in fig. 3b, the subcarrier spacing phase of the NR system is 30KHz, i.e. when m is 2, n may be any one or more of 0 to 29. Therefore, when n is 2,
1 is within the value range of L, so symbol 2 is a reserved symbol. When n is 3, the compound is added,
3 is within the value range of L, so symbol 3 is also a reserved symbol. The above judgment is performed for each possible value of n, and the reserved symbols are 0, 1, 2, 3, 8, 9, 14, 15, 16, 17, 22 and 23 can be obtained. In this case, the symbols filled in the grid in fig. 3b are all reserved symbols, and the NR system can transmit the downlink signal only by multiplexing other symbols in the RB.
In another embodiment, when the NR system subcarrier interval is 15KHz, the downlink signal of the NR system may also be transmitted through REs in the reserved symbols that are not used by the LTE system for transmitting CRS. For example, the NR system transmits the downlink signal of the NR system through the white REs in symbols 4, 7, 8 and 11 in fig. 2, i.e., performs puncturing transmission. The related information of these REs may be broadcast through the coexistence indication bit. Before the reserved symbols are determined, the number of symbols occupied by the control channel of the LTE system, namely the value of CFI (can be 1-4), can be notified to the NR system so as to divide multiplexing resources.
In the above embodiment, the reserved symbol is determined according to the subcarrier interval of the NR system and the symbol occupied by the LTE system, and the frame structure of the NR system is designed accordingly. And transmitting the downlink signal of the NR system by using resources except the reserved symbol in the multiplexing RB, thereby avoiding the conflict between the LTE system and the NR system and further realizing the downlink compatible transmission of the LTE system and the NR system.
Fig. 4 is a block diagram showing an embodiment of a downlink compatible transmission apparatus of the present invention.
As shown in fig. 4, the apparatus includes a time-frequency synchronization module 41, a multiplexing resource determination module 42, and a downlink signal transmission module 43.
The time-frequency synchronization module 41 performs time-frequency synchronization on the NR system and the LTE system. The multiplexing resource determining module 42 divides an RB having the same bandwidth as the NR system as a multiplexing RB when the current frequency band is a shared frequency band of the NR system and the LTE system, and the LTE system schedules a control channel or transmits a CRS in the multiplexing RB without scheduling a data channel.
The downlink signal transmission module 43 is configured to determine a reserved symbol according to a subcarrier interval of the NR system and a label of an OFDM symbol occupied by the LTE system, and transmit a downlink signal of the NR system through multiplexing OFDM symbols other than the reserved symbol in the RB. For example, the number of reserved symbols may be indicated by a coexistence indication bit in the broadcast information of the NR system.
In one embodiment, the subcarrier spacing for the NR system may be an integer multiple of 15 KHz. The downlink signal transmission module 43 will satisfy
The OFDM symbol n is determined as a reserved symbol, n is the label of the OFDM symbol in the multiplexing RB, m is the multiple of the relative 15KHz of the NR system subcarrier spacing, L is the label of the OFDM symbol occupied by the control channel of the LTE system or the label of the OFDM symbol used for sending the CRS of the LTE system, and n, m and L are integers.
In another embodiment, the downlink signal transmission module 43 transmits the downlink signal of the NR system through resource elements RE in the reserved symbols, where the NR system subcarrier interval is 15KHz, and the LTE system does not use for CRS transmission.
In the above embodiment, the reserved symbol is determined according to the subcarrier interval of the NR system and the symbol occupied by the LTE system, and the frame structure of the NR system is designed accordingly. And transmitting the downlink signal of the NR system by using resources except the reserved symbol in the multiplexing RB, thereby avoiding the conflict between the LTE system and the NR system and further realizing the downlink compatible transmission of the LTE system and the NR system.
Fig. 5 is a block diagram showing another embodiment of the downstream compatible transmission apparatus of the present invention.
As shown in fig. 5, the apparatus 50 of this embodiment includes: a memory 51 and a processor 52 coupled to the memory 51, wherein the processor 52 is configured to execute the downlink compatible transmission method according to any embodiment of the present invention based on instructions stored in the memory 51.
The memory 51 may include, for example, a system memory, a fixed nonvolatile storage medium, and the like. The system memory stores, for example, an operating system, an application program, a Boot Loader (Boot Loader), a database, and other programs.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Thus far, the downlink compatible transmission method, apparatus, and computer readable storage medium according to the present invention have been described in detail. Some details well known in the art have not been described in order to avoid obscuring the concepts of the present invention. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.
The method and system of the present invention may be implemented in a number of ways. For example, the methods and systems of the present invention may be implemented in software, hardware, firmware, or any combination of software, hardware, and firmware. The above-described order for the steps of the method is for illustrative purposes only, and the steps of the method of the present invention are not limited to the order specifically described above unless specifically indicated otherwise. Furthermore, in some embodiments, the present invention may also be embodied as a program recorded in a recording medium, the program including machine-readable instructions for implementing a method according to the present invention. Thus, the present invention also covers a recording medium storing a program for executing the method according to the present invention.
Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for the purpose of illustration and is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (8)
1. A downlink compatible transmission method comprises the following steps:
performing time-frequency synchronization on a new radio access technology (NR) system and a Long Term Evolution (LTE) system;
under the condition that the current frequency band is a shared frequency band of the NR system and the LTE system, dividing a resource block RB with the same bandwidth as the NR system as a multiplexing RB, and scheduling a control channel or transmitting a Cell Reference Signal (CRS) by the LTE system in the multiplexing RB but not scheduling a data channel;
determining a reserved symbol according to the subcarrier interval of the NR system and the label of the OFDM symbol occupied by the LTE system, and transmitting a downlink signal of the NR system through the OFDM symbols except the reserved symbol in the multiplexing RB;
wherein the subcarrier spacing of the NR system is integral multiple of 15KHz, which satisfies
The OFDM symbol n is determined as the reserved symbol, n is the label of the OFDM symbol in the multiplexing RB, m is the multiple of the relative 15KHz of the NR system subcarrier spacing, L is the label of the OFDM symbol occupied by the control channel of the LTE system or the label of the OFDM symbol used for sending the CRS of the LTE system, n and L are integers, and m is a positive integer.
2. The downlink compatible transmission method according to claim 1,
and transmitting the downlink signal of the NR system through Resource Elements (REs) which are not used for transmitting CRSs by the LTE system in the reserved symbols under the condition that the NR system subcarrier interval is 15 KHz.
3. The downlink compatible transmission method according to claim 1 or 2,
the index of the reserved symbol is indicated by a coexistence indication bit in the broadcast information of the NR system.
4. A downlink compatible transmission apparatus, comprising:
the time-frequency synchronization module is used for performing time-frequency synchronization on the NR system and the LTE system of the new wireless access technology;
a multiplexing resource determining module, configured to divide a resource block RB with a same bandwidth as the NR system as a multiplexing RB when a current frequency band is a shared frequency band of the NR system and the LTE system, where the LTE system schedules a control channel or transmits a cell reference signal CRS in the multiplexing RB, but does not schedule a data channel;
a downlink signal transmission module, configured to determine a reserved symbol according to a subcarrier interval of the NR system and a label of an orthogonal frequency division multiplexing OFDM symbol occupied by the LTE system, and transmit a downlink signal of the NR system through an OFDM symbol other than the reserved symbol in the multiplexing RB;
the subcarrier interval of the NR system is integral multiple of 15KHz, and the downlink signal transmission module meets the requirement
The OFDM symbol n is determined as the reserved symbol, n is the label of the OFDM symbol in the multiplexing RB, m is the multiple of the relative 15KHz of the NR system subcarrier spacing, L is the label of the OFDM symbol occupied by the control channel of the LTE system or the label of the OFDM symbol used for sending the CRS of the LTE system, and n, m and L are integers.
5. The downstream compatible transmission apparatus according to claim 4,
and the downlink signal transmission module transmits the downlink signal of the NR system through Resource Elements (REs) which are not used for transmitting CRSs by the LTE system in the reserved symbols under the condition that the subcarrier interval of the NR system is 15 KHz.
6. The downstream compatible transmission apparatus according to claim 4 or 5,
the index of the reserved symbol is indicated by a coexistence indication bit in the broadcast information of the NR system.
7. A downlink compatible transmission apparatus, comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the downlink compatible transmission method of any of claims 1-3 based on instructions stored in the memory device.
8. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the downlink compatible transmission method according to any one of claims 1 to 3.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102448068A (en) * | 2011-11-25 | 2012-05-09 | 南京邮电大学 | Dynamic resource block distributing method in long term evolution system |
| CN103813468A (en) * | 2012-11-09 | 2014-05-21 | 北京三星通信技术研究有限公司 | Downlink data transmission method and equipment |
| CN103813455A (en) * | 2012-11-07 | 2014-05-21 | 中国电信股份有限公司 | Long term evolution system parameter optimization allocation method and base station |
| CN106792792A (en) * | 2016-09-30 | 2017-05-31 | 展讯通信（上海）有限公司 | Base station, user terminal and its downlink data control method and device |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102448068A (en) * | 2011-11-25 | 2012-05-09 | 南京邮电大学 | Dynamic resource block distributing method in long term evolution system |
| CN103813455A (en) * | 2012-11-07 | 2014-05-21 | 中国电信股份有限公司 | Long term evolution system parameter optimization allocation method and base station |
| CN103813468A (en) * | 2012-11-09 | 2014-05-21 | 北京三星通信技术研究有限公司 | Downlink data transmission method and equipment |
| CN106792792A (en) * | 2016-09-30 | 2017-05-31 | 展讯通信（上海）有限公司 | Base station, user terminal and its downlink data control method and device |
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