CN109391396A - The method, apparatus and computer readable storage medium of descending carrier resource multiplex - Google Patents
The method, apparatus and computer readable storage medium of descending carrier resource multiplex Download PDFInfo
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- CN109391396A CN109391396A CN201710677864.0A CN201710677864A CN109391396A CN 109391396 A CN109391396 A CN 109391396A CN 201710677864 A CN201710677864 A CN 201710677864A CN 109391396 A CN109391396 A CN 109391396A
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- sub frame
- lte system
- ofdm symbol
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- control channel
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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
- H04L5/0008—Wavelet-division
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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
- 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
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
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- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses the method, apparatus and computer readable storage medium of a kind of descending carrier resource multiplex, are related to wireless communication technique field.This method comprises: the subframe of the uncomfortable degree data channel of LTE system but schedules control channels is determined as multiplexed sub frame；In multiplexed sub frame, the downlink signal of NR system is transmitted by the OFDM symbol not occupied by the control channel of LTE system.This method and device can realize the resource multiplex of LTE system and NR system in the case where not influencing LTE system operation.
Description
Technical field
The present invention relates to wireless communication technique field, in particular to a kind of method, apparatus of descending carrier resource multiplex and
Computer readable storage medium.
Background technique
The standardization of 5G NR (New Radio Access Technology, new wireless access technology) is in progress,
The following 5G system may be deployed in high-frequency band.In order to more effectively utilize the covering advantage of 6GHz or less low frequency, as low frequency LTE
When the load of (Long Term Evolution, long term evolution) still has a margin, 5G NR is deployed on the existing carrier wave of LTE,
It realizes and is run with LTE common carrier, be remarkably improved the covering performance of NR, improve this spectrum of carrier efficiency.
In the related art, the resource multiplex between LTE and NR is realized by way of time domain and/or frequency domain multiplexing.LTE
Running time-frequency resource multiplexing between NR can be static, semi-static or dynamic.
Summary of the invention
The inventors found that above-mentioned, there are the following problems in the related technology: although the relevant technologies are proposed in time domain
And/or the technical though of LTE and NR multiplexing is realized on frequency domain, but feasible resource multiplex technical side is not provided always
Case.At least one problem in regarding to the issue above, present inventors have proposed solutions.
It is an object of the present invention to provide a kind of technical solutions of feasible descending carrier resource multiplex.
According to one embodiment of present invention, a kind of method of descending carrier resource multiplex is provided, comprising: by LTE system
It unites uncomfortable degree data channel but the subframes of schedules control channels is determined as multiplexed sub frame；In the multiplexed sub frame, by not by
OFDM that the control channel of the LTE system occupies (Orthogonal Frequency Division Multiplexing, just
Hand over frequency division multiplexing) symbol transmission NR system downlink signal.
Optionally, the position for the starting OFDM symbol that the control channel of the NR system occupies is fixed.
Optionally, the NR system supports that time domain length is the time slot of N number of OFDM symbol, and N is whole more than or equal to 2
Number.
Optionally, in the case where the control channel of the LTE system occupies M OFDM symbol and N is greater than M, the NR
System also supports that time domain length is the time slot of N-M OFDM symbol, and M is the integer more than or equal to 2.
Optionally, pass through the RE (ResourceElement, resource particle) in the multiplexed sub frame in the LTE system
In the case where transmitting CRS (Cell Reference Signal, cell reference signals), using described multiple by way of punching
The downlink signal of the NR system described in the resource transmission other than the RE in subframe.
Optionally, the subcarrier spacing of the NR system is 15kHz.
According to another embodiment of the invention, a kind of device of descending carrier resource multiplex is provided, comprising: multiplexed sub frame
Determining module, for the subframe of the uncomfortable degree data channel of LTE system but schedules control channels to be determined as multiplexed sub frame；Downlink letter
Number transmission module is passed in the multiplexed sub frame, passing through the OFDM symbol not occupied by the control channel of the LTE system
The downlink signal of defeated NR system.
Optionally, the position for the starting OFDM symbol that the control channel of the NR system occupies is fixed.
Optionally, the NR system supports that time domain length is the time slot of N number of OFDM symbol, and N is whole more than or equal to 2
Number.
Optionally, in the case where the control channel of the LTE system occupies M OFDM symbol and N is greater than M, the NR
System also supports that time domain length is the time slot of N-M OFDM symbol, and M is the integer more than or equal to 2.
Optionally, the downlink signal transmission module is passed in response to the LTE system by the RE in the multiplexed sub frame
Defeated CRS utilizes the downlink of NR system described in the resource transmission other than the RE in the multiplexed sub frame by way of punching
Signal.
Optionally, the subcarrier spacing of the NR system is 15kHz.
According to still another embodiment of the invention, a kind of device of descending carrier resource multiplex is provided, comprising: memory with
And it is coupled to the processor of the memory, the processor is configured to based on the finger being stored in the memory device
It enables, the method for executing the descending carrier resource multiplex in any of the above-described a embodiment.
According to still another embodiment of the invention, a kind of computer readable storage medium is provided, computer is stored thereon with
Program, which realizes the descending carrier resource multiplex in any of the above-described a embodiment method when being executed by processor.
An advantage of the present invention is that LTE system only calls control channel and never calls data letter in multiplexed sub frame
Road, and using the unappropriated resource transmission NR signal of LTE control channel in multiplexed sub frame, thus not influencing LTE system operation
In the case where, realize the resource multiplex of LTE system and NR system.
Detailed description of the invention
The attached drawing for constituting part of specification describes the embodiment of the present invention, and together with the description for solving
Release the principle of the present invention.
The present invention can be more clearly understood according to following detailed description referring to attached drawing, in which:
Fig. 1 shows the flow chart of one embodiment of the method for descending carrier resource multiplex of the invention.
Fig. 2 shows the schematic diagrames of one embodiment of the method for descending carrier resource multiplex of the invention.
Fig. 3 a-3c shows the schematic diagram of present invention one embodiment of resource allocation in multiplexed sub frame.
Fig. 4 a-4b shows the schematic diagram of the present invention another embodiment of resource allocation in multiplexed sub frame.
Fig. 5 a-5c shows the schematic diagram of the present invention another embodiment of resource allocation in multiplexed sub frame.
Fig. 6 shows the structure chart of one embodiment of the device of descending carrier resource multiplex of the invention.
Fig. 7 shows the structure chart of another embodiment of the device of descending carrier resource multiplex of the invention.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Simultaneously, it should be appreciated that for ease of description, the size of various pieces shown in attached drawing is not according to reality
Proportionate relationship draw.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, the other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
Fig. 1 shows the flow chart of one embodiment of the method for descending carrier resource multiplex of the invention.
As shown in Figure 1, in step 110, the subframe of the uncomfortable degree data channel of LTE system but schedules control channels is determined
For multiplexed sub frame.Since the premise of resource multiplex is cannot to influence the operation of existing LTE system, in one embodiment,
It can be using realizing the resource multiplex in multiplexed sub frame Fig. 2 shows by the way of.
As shown in Fig. 2, subframe 1,2,5,6 and 9 only transmits the downlink data information of LTE system, subframe 3,4,7 and 8 conducts
The multiplexed sub frame of LTE system and NR system.
In one embodiment, in these multiplexed sub frames, LTE system can only be believed schedules control channels to send control
Breath, without sending CRS and data information.LTE system can be by being MBSFN (Multicast Broadcast by sub-frame configuration
Single Frequency Network, multicast/multicast single-frequency network network) subframe realizes the setting of above-mentioned multiplexed sub frame.
In another embodiment, in these multiplexed sub frames, LTE system with schedules control channels and can send CRS,
But downlink data information is not transmitted.
In the step 120, NR is transmitted by the OFDM symbol not occupied by the control channel of LTE system in multiplexed sub frame
The downlink signal of system.NR system can support a variety of subcarrier spacings can when the subcarrier spacing of NR system is 15kHz
It is better achieved and LTE system adjacent frequency coexistence.
In order to not influence the operation of LTE system, for example, resource multiplex as shown in Figure 3a can be used in multiplexed sub frame
Mode.It as shown in Figure 3a, altogether include 14 symbols (marked as 0-13) in multiplexed sub frame, LTE system only takes up the work of symbol 0 and 1
For its control channel, NR system occupies remaining 12 symbol to send downlink data information and control information.That is, in such case
Lower NR system supports that time span is 12 time slot.
In one embodiment, as shown in Figure 3a, 3b and 3c as shown in, in the multiplexed sub frame that a length is 14 symbols, LTE
System can occupy 2,3 or 4 symbols as its control channel respectively.Correspondingly, NR system can occupy 12 respectively
A, 11 or 10 symbols transmit downlink information, that is, NR system supports that time span is 12,11 and 10 time slot respectively.It is logical
Such multiplex mode is crossed, the downlink data information of NR system can be transmitted in the case where not influencing LTE system operation.
In the embodiment in Fig. 3 a, 3b and 3c, no matter the control channel of LTE system occupies several symbols, NR system begins
Symbol 4 is occupied eventually and symbol 5 is used as its control channel.That is, the first character position that the control channel of NR system occupies is fixed as
5th symbol of multiplexed sub frame.LTE system generally at most occupies preceding 4 symbols of multiplexed sub frame as its control channel, NR system
The first character position that the control channel of system occupies can also be fixed as the 6th symbol of multiplexed sub frame.Pass through above-mentioned technical side
The efficiency that NR system calls control channel can be improved in case.
Fig. 4 a shows the schematic diagram of another embodiment of the method for descending carrier resource multiplex of the invention.
As shown in fig. 4 a, in multiplexed sub frame, LTE system also utilizes other than scheduling symbol 0-2 is as its control channel
Part RE (with a square for filling in Fig. 4 a) in multiplexed sub frame sends CRS.In this case, NR system occupies symbol 3-
13 are used as its channel, and send downlink data information in these channels by way of punching.For example, receiving end can be passed through
Solution rate-matched, channel decoding etc. treatment processes, under suitable channel condition correct decoding go out data channel transmission block come
Realize punching transmission.It can be to avoid NR downlink signal be transmitted in the RE that LTE system transmits CRS, thus real by punching transmission
Existing resource multiplex.
In another embodiment, Fig. 4 b shows that NR system supports that time span is the mini-slot of 2 symbols
Resource allocation conditions in the case where (mini-slot) in multiplexed sub frame.As shown in Figure 4 b, control of the symbol 0-2 as LTE system
Channel sends the CRS of LTE system using the RE (by a square for filling in Fig. 4 b) in symbol 4,7 and 11, and symbol 3 and 10 is not
Send any signal.Symbol 5 and 6, symbol 8 and 9 and symbol 12 and 13 are used for transmission line number under NR as 3 mini-slot
It is believed that breath.Technical solution in this way, LTE and NR can occupy the different resource in multiplexed sub frame to send the control of oneself
Information, data information or CRS.
In yet another embodiment, as shown in Fig. 5 a, 5b and 5c, the control channel of LTE system occupies multiplexing respectively
First 2,3 in frame and 4 symbols, LTE system does not send CRS in multiplexed sub frame, and NR system supports that time span is 2
The mini-slot of a symbol.In this case, NR system utilizes the unappropriated symbol transmission downlink of LTE system control channel
Data information, and every two symbol forms a time slot.As shown in Figure 5 b, the control channel of LTE system occupies three symbols
(symbol 0-2), symbol 3 do not transmit any information, remaining symbol is used for transmission the downlink data information of NR system.
In above-described embodiment, the subframe of the uncomfortable degree data channel of LTE system is determined as multiplexed sub frame by the present invention, and multiple
Downlink Control Information, downlink data information or CRS are sent with different resources is distributed in subframe for LTE system and NR system.
To realize the resource multiplex of LTE system and NR system in the case where not influencing LTE system operation.
Fig. 6 shows the structure chart of one embodiment of the device of descending carrier resource multiplex of the invention.
As shown in fig. 6, the device includes multiplexed sub frame determining module 61 and downlink signal transmission module 62.
The subframe of the uncomfortable degree data channel of LTE system but schedules control channels is determined as multiple by multiplexed sub frame determining module 61
Use subframe.For example, the subcarrier spacing of NR system can be 15kHz.The control channel of NR system occupies in multiplexed sub frame
It is fixed for originating the position of OFDM symbol, for example, it may be for the 5th or the 6th OFDM symbol in multiplexed sub frame.NR system
System can support that time domain length is the time slot of N number of OFDM symbol, and N is the integer more than or equal to 2.Believe in the control of LTE system
In the case that road occupies M OFDM symbol, and N is greater than M, NR system also supports that time domain length is the time slot of N-M OFDM symbol.
For example, M can be equal to 2,3 or 4.
Downlink signal transmission module 62 is accorded in multiplexed sub frame by the OFDM not occupied by the control channel of LTE system
Number transmission NR system downlink signal.
In one embodiment, in the case where LTE system transmits CRS by the RE in multiplexed sub frame, downlink signal is passed
Defeated module 62 utilizes the downlink signal of the resource transmission NR system other than the above-mentioned RE in multiplexed sub frame by way of punching.
In above-described embodiment, the subframe of the uncomfortable degree data channel of LTE system is determined as multiplexed sub frame by the present invention, and multiple
Downlink Control Information, downlink data information or CRS are sent with different resources is distributed in subframe for LTE system and NR system.
To realize the resource multiplex of LTE system and NR system in the case where not influencing LTE system operation.
Fig. 7 shows the structure chart of another embodiment of the device of descending carrier resource multiplex of the invention.
As shown in fig. 7, the device 70 of the embodiment includes: memory 71 and the processor for being coupled to the memory 71
72, processor 72 is configured as executing in the present invention in any one embodiment based on the instruction being stored in memory 71
The method of descending carrier resource multiplex.
Wherein, memory 71 is such as may include system storage, fixed non-volatile memory medium.System storage
Such as be stored with operating system, application program, Boot loader (Boot Loader), database and other programs etc..
Those skilled in the art should be understood that the embodiment of the present invention can provide as method, system or computer journey
Sequence product.Therefore, complete hardware embodiment, complete software embodiment or combining software and hardware aspects can be used in the present invention
The form of embodiment.Moreover, it wherein includes the calculating of computer usable program code that the present invention, which can be used in one or more,
Machine can use the meter implemented in non-transient storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of calculation machine program product.
So far, the method, apparatus and computer that descending carrier resource multiplex according to the present invention is described in detail can
Read storage medium.In order to avoid covering design of the invention, some details known in the field are not described.Art technology
Personnel as described above, completely it can be appreciated how implementing technical solution disclosed herein.
Method and system of the invention may be achieved in many ways.For example, can by software, hardware, firmware or
Software, hardware, firmware any combination realize method and system of the invention.The said sequence of the step of for the method
Merely to be illustrated, the step of method of the invention, is not limited to sequence described in detail above, special unless otherwise
It does not mentionlet alone bright.In addition, in some embodiments, also the present invention can be embodied as to record program in the recording medium, these programs
Including for realizing machine readable instructions according to the method for the present invention.Thus, the present invention also covers storage for executing basis
The recording medium of the program of method of the invention.
Although some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that above example merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair
Bright range is defined by the following claims.
Claims (14)
1. a kind of method of descending carrier resource multiplex, comprising:
The subframe of the uncomfortable degree data channel of long term evolution LTE system but schedules control channels is determined as multiplexed sub frame；
In the multiplexed sub frame, pass through the orthogonal frequency division multiplex OFDM symbol not occupied by the control channel of the LTE system
Transmit the downlink signal of new wireless access technology NR system.
2. according to the method described in claim 1, wherein, the downlink signal of the transmission NR system includes:
The position for the starting OFDM symbol that the control channel of the NR system occupies is fixed.
3. according to the method described in claim 1, wherein,
The NR system supports that time domain length is the time slot of N number of OFDM symbol, and N is the integer more than or equal to 2.
4. according to the method described in claim 3, wherein,
M OFDM symbol is occupied in the control channel of the LTE system and N is greater than in the case where M, and the NR system is also supported
Time domain length is the time slot of N-M OFDM symbol, and M is the integer more than or equal to 2.
5. according to the method described in claim 1, wherein,
In the case where the LTE system transmits cell reference signals CRS by the resource particle RE in the multiplexed sub frame, lead to
The mode for crossing punching utilizes the downlink signal of NR system described in the resource transmission other than the RE in the multiplexed sub frame.
6. method according to claim 1-5, wherein the subcarrier spacing of the NR system is 15kHz.
7. a kind of device of descending carrier resource multiplex, comprising:
Multiplexed sub frame determining module, for by long term evolution LTE system it is uncomfortable degree data channel but schedules control channels subframe
It is determined as multiplexed sub frame；
Downlink signal transmission module, for passing through what is do not occupied by the control channel of the LTE system in the multiplexed sub frame
The downlink signal of the new wireless access technology NR system of orthogonal frequency division multiplex OFDM symbol transmission.
8. device according to claim 7, wherein the position for the starting OFDM symbol that the control channel of the NR system occupies
It is set to fixed.
9. device according to claim 7, wherein the NR system supports that time domain length is the time slot of N number of OFDM symbol,
N is the integer more than or equal to 2.
10. device according to claim 9, wherein M OFDM symbol is occupied in the control channel of the LTE system, and
In the case that N is greater than M, the NR system also supports that time domain length is the time slot of N-M OFDM symbol, and M is more than or equal to 2
Integer.
11. device according to claim 7, wherein the downlink signal transmission module passes through described in the LTE system
In the case where resource particle RE transmission cell reference signals CRS in multiplexed sub frame, the multiplexing is utilized by way of punching
The downlink signal of NR system described in the resource transmission other than the RE in subframe.
12. according to the described in any item devices of claim 7-11, wherein the subcarrier spacing of the NR system is 15kHz.
13. a kind of device of descending carrier resource multiplex, comprising:
Memory；And
It is coupled to the processor of the memory, the processor is configured to based on the finger being stored in the memory device
It enables, executes the method such as descending carrier resource multiplex of any of claims 1-6.
14. a kind of computer readable storage medium, is stored thereon with computer program, realized such as when which is executed by processor
The method of descending carrier resource multiplex of any of claims 1-6.
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| CN201710677864.0A CN109391396B (en) | 2017-08-10 | 2017-08-10 | Method, device and computer readable storage medium for multiplexing downlink carrier resources |
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