CN105391525A - Method and system for selecting resources - Google Patents
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- CN105391525A CN105391525A CN201410444497.6A CN201410444497A CN105391525A CN 105391525 A CN105391525 A CN 105391525A CN 201410444497 A CN201410444497 A CN 201410444497A CN 105391525 A CN105391525 A CN 105391525A
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Abstract
The invention discloses a method and system for selecting resources. The method comprises the steps that a base station enables a resource configuration parameter N (1, PUCCH) and a carrier offset to be transmitted to a user terminal; the user terminal detects a PDCCH channel, and obtains the index nCCE of a first control channel unit CCE occupied by the PDCCH channel; and the user terminal detects a PDSCH channel, determines the uplink resource of ACK/NACK through employing the index nCCE, the resource configuration parameter N (1, PUCCH) and the carrier offset, and feeds back the ACK/NACK on the uplink resource. The user terminal determines the uplink resource of ACK/NACK through the carrier off provided by the base station, and feeds back the ACK/NACK on the uplink resource, thereby effectively solving a problem of uplink ACK/NACK resource conflict in uplink and downlink asymmetric frequency spectrums.
Description
Technical field
The present invention relates to the communications field, particularly a kind of for selecting the method and system of resource.
Background technology
Along with the fast development of intelligent terminal and mobile Internet, mobile data services amount is also in rapid growth.Report display according to International Telecommunication Association ITU-RM.2443, from 2010 to 2015, global mobile data services amount will have the growth of 15 to 30 times.The surge of mobile data services amount, will cause network capacity to become bottleneck gradually, and bring huge challenge to operator.The feature of mobile data services is that up-downgoing service traffics are unbalanced on the other hand, and the up-downgoing flow proportional of different business is different.The up-downgoing flow proportional of different business is as shown in table 1.The prediction of IMT-2020 (5G) working group to 5G Mobile data is as shown in table 2.
| Class of business | Uplink/downlink flow average specific comparatively |
| Online Video | 1:37 |
| Software download | 1:22 |
| Web page browsing | 1:9 |
| Social networks | 4:1 |
| 1:4 | |
| P2P video is shared | 3:1 |
Table 1
Table 2
As shown in Figure 1, in FDD (FrequencyDivisionDuplexing, Frequency Division Duplexing (FDD)) system, symmetrical up-downgoing frequency spectrum cannot match with the unbalanced nothing of up-downgoing.
3GPP (The3rdGenerationPartnerProject, third generation partner program) and domestic IMT-2020 (5G) propelling group are considering the method that non-symmetrical spectrum is distributed.
● introduce the frequency band being only used for doing downlink transfer, use carrier aggregation in conjunction with existing frequency band.
● in FDD system, by part upstream or downstream frequency band definition point " flexible frequency band "." flexible frequency band " can act on upstream or downstream, is configured according to the business of up-downgoing in community.
● when future spectrum distributes, consider that non-symmetrical spectrum is distributed.
At LTE (LongTermEvolution, Long Term Evolution) in system for the data PDSCH (PhysicalDownlinkSharedChannel of downlink transfer, Physical Downlink Shared Channel), user is at uplink feedback ACK (Acknowledge, confirmation)/NACK (Non-Acknowledge, unacknowledged information), its resource used is tried to achieve by following formula.
n(1,PUCCH)＝n
CCE+N(1,PUCCH)
Wherein n
cCEit is first CCE (ControlChannelElement, the control channel unit) index of control signal PDCCH (PhysicalDownlinkControlChannel, the Physical Downlink Control Channel) correspondence that PDSCH is corresponding; N (1, PUCCH) is by high-rise RRC (RadioResourceControl, wireless heterogeneous networks) signal deployment.
In up-downgoing non-symmetrical spectrum, because multiple descending carrier is mapped to same up-link carrier.Different users is being connected on different descending carriers.As shown in Figure 2, user 1 is connected to descending f1, up f2; User 2 is connected to descending f3, up f2; User 3 is connected to descending f4, up f2; So the ACK/NACK resource of these 3 users may clash.
In the conventional method, introduce the frequency band being only used for doing downlink transfer, use carrier aggregation in conjunction with existing frequency band.And potential method is, in FDD system, by part upstream or downstream frequency band definition point " flexible frequency band "." flexible frequency band " can act on upstream or downstream, is configured according to the business of up-downgoing in community.But the method just begins one's study, also there is no concrete scheme.Simultaneously when future spectrum distributes, can consider that non-symmetrical spectrum is distributed.Same the method just begins one's study, and does not also have concrete scheme.
Summary of the invention
The embodiment of the present invention provides a kind of for selecting the method and system of resource.The carrier deviation that user terminal utilizes base station to provide determines the ascending resource of ACK/NACK, and on described ascending resource feeding back ACK/NACK, thus efficiently solve the problem of uplink ACK/NACK resource contention in up-downgoing non-symmetrical spectrum.
According to an aspect of the present invention, providing a kind of for selecting the method for resource, comprising:
Resource configuration parameter N (1, PUCCH) and carrier shift amount are sent to user terminal by base station;
User terminal detects PDCCH channel, obtains the index n of first control channel unit CCE of PDCCH channel occupancy
cCE;
User terminal detects PDSCH channel, utilizes index n
cCE, resource configuration parameter N (1, PUCCH) and carrier shift amount determine the ascending resource of ACK/NACK, and on described ascending resource feeding back ACK/NACK.
In one embodiment, resource configuration parameter N (1, PUCCH) and carrier shift amount send to the step of user terminal to comprise by base station:
Resource configuration parameter N (1, PUCCH) is sent to user terminal by RRC signaling by base station;
The offset X of instruction different carrier is sent to user terminal by PDCCH signaling by base station.
In one embodiment, user terminal detects PDSCH channel, utilizes index n
cCE, resource configuration parameter N (1, PUCCH) and carrier shift amount determine that the step of the ascending resource of ACK/NACK comprises;
User terminal detects PDSCH channel, utilizes formula n
cCE+ N (1, PUCCH)+X determines the ascending resource of ACK/NACK.
In one embodiment, resource configuration parameter N (1, PUCCH) and carrier shift amount send to the step of user terminal to comprise by base station:
Base station is by the offset X of RRC signaling by resource configuration parameter N (1, PUCCH) and corresponding different carrier
nsend to user terminal.
In one embodiment, user terminal detects PDSCH channel, utilizes index n
cCE, resource configuration parameter N (1, PUCCH) and carrier shift amount determine that the step of the ascending resource of ACK/NACK comprises;
User terminal detects PDSCH channel, utilizes formula n
cCE+ N (1, PUCCH)+X
ndetermine the ascending resource of ACK/NACK.
According to a further aspect in the invention, providing a kind of for selecting the system of resource, comprising base station and user terminal; Wherein:
Base station, for sending to user terminal by resource configuration parameter N (1, PUCCH) and carrier shift amount;
User terminal, for detecting PDCCH channel, obtains the index n of first control channel unit CCE of PDCCH channel occupancy
cCE; Detect PDSCH channel, utilize index n
cCE, resource configuration parameter N (1, PUCCH) and carrier shift amount determine the ascending resource of ACK/NACK, and on described ascending resource feeding back ACK/NACK.
In one embodiment, resource configuration parameter N (1, PUCCH) is sent to user terminal especially by RRC signaling by base station; By PDCCH signaling, the offset X of instruction different carrier is sent to user terminal.
In one embodiment, user terminal specifically detects PDSCH channel, utilizes formula n
cCE+ N (1, PUCCH)+X determines the ascending resource of ACK/NACK.
In one embodiment, base station is especially by the offset X of RRC signaling by resource configuration parameter N (1, PUCCH) and corresponding different carrier
nsend to user terminal.
In one embodiment, user terminal specifically detects PDSCH channel, utilizes formula n
cCE+ N (1, PUCCH)+X
ndetermine the ascending resource of ACK/NACK.
Resource configuration parameter N (1, PUCCH) and carrier shift amount are sent to user terminal by base station by the present invention; User terminal detects PDCCH channel, obtains the index n of first control channel unit CCE of PDCCH channel occupancy
cCE; User terminal detects PDSCH channel, utilizes index n
cCE, resource configuration parameter N (1, PUCCH) and carrier shift amount determine the ascending resource of ACK/NACK, and on described ascending resource feeding back ACK/NACK.Thus efficiently solve the problem of uplink ACK/NACK resource contention in up-downgoing non-symmetrical spectrum.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of FDD system up-downgoing symmetrical spectrum.
Fig. 2 is that up-downgoing non-symmetrical spectrum distributes schematic diagram.
Fig. 3 is that the present invention is for selecting the schematic diagram of a method embodiment of resource.
Fig. 4 is that the present invention is for selecting the schematic diagram of another embodiment of method of resource.
Fig. 5 is that the present invention is for selecting the schematic diagram of the another embodiment of the method for resource.
Fig. 6 is that the present invention is for selecting the schematic diagram of a system embodiment of resource.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Illustrative to the description only actually of at least one exemplary embodiment below, never as any restriction to the present invention and application or use.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Unless specifically stated otherwise, otherwise positioned opposite, the numerical expression of the parts of setting forth in these embodiments and step and numerical value do not limit the scope of the invention.
Meanwhile, it should be understood that for convenience of description, the size of the various piece shown in accompanying drawing is not draw according to the proportionate relationship of reality.
May not discuss in detail for the known technology of person of ordinary skill in the relevant, method and apparatus, but in the appropriate case, described technology, method and apparatus should be regarded as a part of authorizing specification.
In all examples with discussing shown here, any occurrence should be construed as merely exemplary, instead of as restriction.Therefore, other example of exemplary embodiment can have different values.
It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to be further discussed it in accompanying drawing subsequently.
Fig. 3 is that the present invention is for selecting the schematic diagram of a method embodiment of resource.Wherein:
Step 301, resource configuration parameter N (1, PUCCH) and carrier shift amount are sent to user terminal by base station.
Step 302, user terminal detects PDCCH channel, obtains the index n of first control channel unit CCE of PDCCH channel occupancy
cCE.
Step 303, user terminal detects PDSCH channel, utilizes index n
cCE, resource configuration parameter N (1, PUCCH) and carrier shift amount determine the ascending resource of ACK/NACK, and on described ascending resource feeding back ACK/NACK.
Based on the method for selecting resource that the above embodiment of the present invention provides, the carrier deviation that user terminal utilizes base station to provide determines the ascending resource of ACK/NACK, and on described ascending resource feeding back ACK/NACK, thus efficiently solve the problem of uplink ACK/NACK resource contention in up-downgoing non-symmetrical spectrum.
Wherein, side-play amount informs user terminal by physical layer information, also by high-rise rrc message for user is configured.Below this is specifically described.
Fig. 4 is that the present invention is for selecting the schematic diagram of another embodiment of method of resource.Wherein:
Step 401, resource configuration parameter N (1, PUCCH) is sent to user terminal by RRC signaling by base station.
Step 402, the offset X of instruction different carrier is sent to user terminal by PDCCH signaling by base station.
Step 403, user terminal detects PDCCH channel, obtains the index n of first control channel unit CCE of PDCCH channel occupancy
cCE.
Step 404, user terminal detects PDSCH channel, utilizes formula n
cCE+ N (1, PUCCH)+X determines the ascending resource of ACK/NACK, and on described ascending resource feeding back ACK/NACK.
Fig. 5 is that the present invention is for selecting the schematic diagram of the another embodiment of the method for resource.Wherein:
Step 501, base station is by the offset X of RRC signaling by resource configuration parameter N (1, PUCCH) and corresponding different carrier
nsend to user terminal.
Step 502, user terminal detects PDCCH channel, obtains the index n of first control channel unit CCE of PDCCH channel occupancy
cCE.
Step 503, user terminal detects PDSCH channel, utilizes formula n
cCE+ N (1, PUCCH)+X
ndetermine the ascending resource of ACK/NACK, and on described ascending resource feeding back ACK/NACK.
Fig. 6 is that the present invention is for selecting the schematic diagram of a system embodiment of resource.As shown in Figure 6, this system can comprise base station 601 and user terminal 602.For convenience's sake, a user terminal is only shown in figure 6, and those skilled in the art are scrutable, can comprise multiple user terminal in system.Wherein:
Base station 601, for sending to user terminal 602 by resource configuration parameter N (1, PUCCH) and carrier shift amount.
User terminal 602, for detecting PDCCH channel, obtains the index n of first control channel unit CCE of PDCCH channel occupancy
cCE; Detect PDSCH channel, utilize index n
cCE, resource configuration parameter N (1, PUCCH) and carrier shift amount determine the ascending resource of ACK/NACK, and on described ascending resource feeding back ACK/NACK.
Based on the system for selecting resource that the above embodiment of the present invention provides, the carrier deviation that user terminal utilizes base station to provide determines the ascending resource of ACK/NACK, and on described ascending resource feeding back ACK/NACK, thus efficiently solve the problem of uplink ACK/NACK resource contention in up-downgoing non-symmetrical spectrum.
In one embodiment, resource configuration parameter N (1, PUCCH) is sent to user terminal 602 especially by RRC signaling by base station 601; By PDCCH signaling, the offset X of instruction different carrier is sent to user terminal 602.
User terminal 602 specifically detects PDSCH channel, utilizes formula n
cCE+ N (1, PUCCH)+X determines the ascending resource of ACK/NACK.
In another embodiment, base station 601 is especially by the offset X of RRC signaling by resource configuration parameter N (1, PUCCH) and corresponding different carrier
nsend to user terminal 602.
User terminal 602 specifically detects PDSCH channel, utilizes formula n
cCE+ N (1, PUCCH)+X
ndetermine the ascending resource of ACK/NACK.
By implementing the present invention, the problem of uplink ACK/NACK resource contention in up-downgoing non-symmetrical spectrum effectively can be solved.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can have been come by hardware, the hardware that also can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.
Description of the invention provides in order to example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is in order to principle of the present invention and practical application are better described, and enables those of ordinary skill in the art understand the present invention thus design the various embodiments with various amendment being suitable for special-purpose.
Claims (10)
1. for selecting a method for resource, it is characterized in that, comprising:
Resource configuration parameter N (1, PUCCH) and carrier shift amount are sent to user terminal by base station;
User terminal detects PDCCH channel, obtains the index n of first control channel unit CCE of PDCCH channel occupancy
cCE;
User terminal detects PDSCH channel, utilizes index n
cCE, resource configuration parameter N (1, PUCCH) and carrier shift amount determine the ascending resource of ACK/NACK, and on described ascending resource feeding back ACK/NACK.
2. method according to claim 1, is characterized in that,
Resource configuration parameter N (1, PUCCH) and carrier shift amount send to the step of user terminal to comprise by base station:
Resource configuration parameter N (1, PUCCH) is sent to user terminal by RRC signaling by base station;
The offset X of instruction different carrier is sent to user terminal by PDCCH signaling by base station.
3. method according to claim 2, is characterized in that,
User terminal detects PDSCH channel, utilizes index n
cCE, resource configuration parameter N (1, PUCCH) and carrier shift amount determine that the step of the ascending resource of ACK/NACK comprises;
User terminal detects PDSCH channel, utilizes formula n
cCE+ N (1, PUCCH)+X determines the ascending resource of ACK/NACK.
4. method according to claim 1, is characterized in that,
Resource configuration parameter N (1, PUCCH) and carrier shift amount send to the step of user terminal to comprise by base station:
Base station is by the offset X of RRC signaling by resource configuration parameter N (1, PUCCH) and corresponding different carrier
nsend to user terminal.
5. method according to claim 4, is characterized in that,
User terminal detects PDSCH channel, utilizes index n
cCE, resource configuration parameter N (1, PUCCH) and carrier shift amount determine that the step of the ascending resource of ACK/NACK comprises;
User terminal detects PDSCH channel, utilizes formula n
cCE+ N (1, PUCCH)+X
ndetermine the ascending resource of ACK/NACK.
6. for selecting a system for resource, it is characterized in that, comprising base station and user terminal; Wherein:
Base station, for sending to user terminal by resource configuration parameter N (1, PUCCH) and carrier shift amount;
User terminal, for detecting PDCCH channel, obtains the index n of first control channel unit CCE of PDCCH channel occupancy
cCE; Detect PDSCH channel, utilize index n
cCE, resource configuration parameter N (1, PUCCH) and carrier shift amount determine the ascending resource of ACK/NACK, and on described ascending resource feeding back ACK/NACK.
7. system according to claim 6, is characterized in that,
Resource configuration parameter N (1, PUCCH) is sent to user terminal especially by RRC signaling by base station; By PDCCH signaling, the offset X of instruction different carrier is sent to user terminal.
8. system according to claim 7, is characterized in that,
User terminal specifically detects PDSCH channel, utilizes formula n
cCE+ N (1, PUCCH)+X determines the ascending resource of ACK/NACK.
9. system according to claim 6, is characterized in that,
Base station is especially by the offset X of RRC signaling by resource configuration parameter N (1, PUCCH) and corresponding different carrier
nsend to user terminal.
10. system according to claim 9, is characterized in that,
User terminal specifically detects PDSCH channel, utilizes formula n
cCE+ N (1, PUCCH)+X
ndetermine the ascending resource of ACK/NACK.
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| CN112118627A (en) * | 2019-06-20 | 2020-12-22 | 中国电信股份有限公司 | Communication method, device, system, base station and computer readable storage medium |
| US20210045121A1 (en) * | 2017-11-10 | 2021-02-11 | Samsung Electronics Co., Ltd. | Method and apparatus for transmitting and receiving control information in wireless communication system |
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