CN101795189A - Two-layer distribution method and base station - Google Patents
Two-layer distribution method and base station Download PDFInfo
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- CN101795189A CN101795189A CN201010003606A CN201010003606A CN101795189A CN 101795189 A CN101795189 A CN 101795189A CN 201010003606 A CN201010003606 A CN 201010003606A CN 201010003606 A CN201010003606 A CN 201010003606A CN 101795189 A CN101795189 A CN 101795189A
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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
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Abstract
The invention provides a two-layer distribution method. The method comprises the following steps: dividing the total current transmission layers into a plurality of groups, wherein each group corresponds to one layer or two layers, and the layers corresponding to each group are different; and when the data of a target user is transmitted on two layers, distributing the group, corresponding to the two layers, of the multiple groups to the target user. The invention also provides a base station. The invention realizes the possibility of two layer transmission of a user during multi-user transmission, and optimizes signalling expenditure to the utmost extent on the premise of ensuring the system performance by distribution limitation on two layer users.
Description
Technical field
The present invention relates to moving communicating field, particularly relate to a kind of two-layer distribution method and base station.
Background technology
In radio communication, if use many antennas at transmitting terminal (such as the base station (eNB) of evolution), can take the mode of spatial reuse to improve transmission rate, the different data of the i.e. emission of different antennae position on the identical running time-frequency resource of transmitting terminal, (UE) also uses many antennas at receiving terminal, can under single user's situation the resource of all antennas all be distributed to same user, this transmission form is called SU-MIMO (single user's multiple-input and multiple-output).Also can give different user with the resource allocation in different antennae space under multi-user's situation in addition, this transmission form is called MU-MIMO (multiuser MIMO).Transmission system is if support Single User MIMO and multiuser MIMO simultaneously, and eNB is necessary to be provided at data under these two kinds of transmission modes with the control signaling to UE.UE needs to know that in these two kinds of transmission modes eNB is for the used order (Rank) of this UE transmission, under single user mode, because the resource of all antennas is all distributed to same user, transmit the used number of plies and just equal eNB in the used order of this transmission, and in multi-user's transmission, corresponding user is transmitted total number of plies that the used number of plies is less than this transmission.Accomplish the dynamic switching of single user and multi-user transmission, eNB need be in the different transmission mode different data of UE that sends a notice.
In addition, in the version number 10 of LTE, the transmission mode of MIMO has been determined to separate the pilot tone of calling with demodulation pilot frequency (Demodulation Reference Signal abbreviates DMRS as), UE will obtain the position of pilot tone, just can do the estimation of channel and interference on pilot tone.Total number of plies of different transmission has different pilot frequency designs, for example in the version number 10 of LTE, three kinds of different patterns (DMRS Pattern) have tentatively been decided to have, total number of plies of transmission or order are time 1 to 2, with first pattern (DMRS pattern 1), shown in Fig. 1 (a), total number of plies of transmission or order are time second pattern of standby (DMRS pattern 2) of 3 to 4, shown in Fig. 1 (b), total number of plies of transmission or order are 5 to 8 time the 3rd pattern of standby (DMRS pattern 3), shown in Fig. 1 (c).In single user's transmission, the data of all transport layers all are to same UE, so just can know pilot frequency design as long as UE obtains order, also can know the position of pilot tone.In multi-user's transmission, UE will know that one deck of sum of ranks begins this UE is transmitted, and the base station need be distributed the indication information of equivalent layer for different UE, and the layer of mentioning here also can be called antenna port, and Distribution Layer also is equivalent to the distribution of antenna port.In the technology of existing version number 8, do not have same requirement, so the version number 10 of LTE needs a kind of new layer distribution method to go to support the MIMO multi-user based on DMRS to transmit.In addition, be subject to transmission performance, in multi-user's transmission, a user distributes two-layer resource at most; Total number of plies of transmission or order at present, also do not have scheme how to distribute the two-layer targeted customer of giving greater than 2 the time.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of two-layer distribution method and base station, the possibility of user's two-layer transmission when providing the multi-user to transmit.
In order to address the above problem, the invention provides a kind of two-layer distribution method, comprise: total number of plies of current transmission is divided into some groups, every group of corresponding one deck or two-layer, the layer of each group correspondence is different, when targeted customer's data are transmitted, give the targeted customer with a set of dispense corresponding two-layer in described some groups on two-layer.
Further, said method also can have following characteristics, and when targeted customer's data were transmitted on two-layer, the proprietary reference signal of the user of described two-layer correspondence adopted the code division multiplexing mode to transmit on identical physical resource; Perhaps, the proprietary reference signal of the user of described two-layer correspondence adopts the frequency division multiplexing mode to transmit on different physical resources.
Further, said method also can have following characteristics, and its two-layer corresponding index value is respectively n and n+1 in the corresponding two-layer group, and wherein, n is an even number; Perhaps, be m and m+2, m is 0,1,4,5.
Further, said method also can have following characteristics, and when total number of plies of transmission was 3, its two-layer corresponding index value was 0 and 1 in the corresponding two-layer group; Perhaps, 0 and 2.
Further, said method also can have following characteristics, and when total number of plies of transmission is 4 or 5, perhaps, when pilot frequency design was second pattern, its two-layer corresponding index value was 0 and 1,2 and 3 in corresponding each two-layer group; Perhaps be 0 and 2,1 and 3.
Further, said method also can have following characteristics, and when total number of plies of transmission was 6 or 7, its two-layer corresponding index value was 0 and 1,2 and 3,4 and 5 in each corresponding two-layer group, perhaps, and 0 and 1,2 and 3,4 and 6; Perhaps, 0 and 2,1 and 3,4 and 6, perhaps, 0 and 2,1 and 3,4 and 5.
Further, said method also can have following characteristics, when the transmission total number of plies be 8, perhaps, when pilot frequency design is the 3rd pattern, its two-layer corresponding index value is 0 and 1,2 and 3,4 and 5,6 and 7 in each corresponding two-layer group, perhaps, 0 and 1,2 and 3,4 and 6,5 and 7; Perhaps, 0 and 2,1 and 3,4 and 6,5 and 7, perhaps, 0 and 2,1 and 3,4 and 5,6 and 7.
The present invention also provides a kind of base station, described base station, be used for total number of plies of current transmission is divided into some groups, every group of corresponding one deck or two-layer, the layer of each group correspondence is different, when targeted customer's data are transmitted, give the targeted customer with a set of dispense corresponding two-layer in described some groups on two-layer.
Further, above-mentioned base station also can have following characteristics, and described base station is used for when targeted customer's data are transmitted on two-layer, adopts the code division multiplexing mode to transmit the proprietary reference signal of user of described two-layer correspondence on identical physical resource; Perhaps, on different physical resources, adopt the frequency division multiplexing mode to transmit the proprietary reference signal of user of described two-layer correspondence.
Further, above-mentioned base station also can have following characteristics, and described base station is used for dividing as follows each group: corresponding two-layer its two-layer corresponding index value of group is respectively n and n+1, perhaps be, m and m+2, wherein, n is an even number, m is 0,1,4,5.
Further, above-mentioned base station also can have following characteristics, and described base station is used for dividing as follows each group: when total number of plies of transmission was 3, corresponding two-layer its two-layer corresponding index value of group was 0 and 1; Perhaps, 0 and 2.
Further, above-mentioned base station also can have following characteristics, and described base station is used for dividing as follows each group:
When total number of plies of transmission is 4 or 5, perhaps, when pilot frequency design was second pattern, its two-layer corresponding index value was 0 and 1 in corresponding each two-layer group; 2 and 3; Perhaps be 0 and 2,1 and 3.
Further, above-mentioned base station also can have following characteristics, and described base station is used for dividing as follows each group:
When total number of plies of transmission was 6 or 7, its two-layer corresponding index value was 0 and 1,2 and 3,4 and 5 in each corresponding two-layer group, perhaps, and 0 and 1,2 and 3,4 and 6; Perhaps, 0 and 2,1 and 3,4 and 6, perhaps, 0 and 2,1 and 3,4 and 5.
Further, above-mentioned base station also can have following characteristics, and described base station is used for dividing as follows each group:
When total number of plies of transmission is 8, perhaps, when pilot frequency design was the 3rd pattern, its two-layer corresponding index value was 0 and 1,2 and 3,4 and 5,6 and 7 in corresponding each two-layer group, perhaps, 0 and 1,2 and 3,4 and 6,5 and 7, perhaps, 0 and 2,1 and 3,4 and 6,5 and 7, perhaps, 0 and 2,1 and 3,4 and 5,6 and 7.
The present invention has provided a kind of two-layer distribution method and base station, and the possibility of the two-layer transmission of user when providing the multi-user to transmit is by the assignment constraint for two-layer user, in the expense of signaling that guaranteed optimization maximum under the prerequisite of systematic function.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram according to correlation technique.
Embodiment
Consider the problem of in the version number 10 of LTE, not supporting in the correlation technique based on MIMO multi-user's transmission of demodulation pilot frequency, the present invention has provided a kind of two-layer distribution method, the possibility of the two-layer transmission of user when this method provides the multi-user to transmit, by the restriction of Distribution Layer, in the expense of signaling that guaranteed optimization maximum under the prerequisite of systematic function.
Suppose that the pilot frequency design of one deck and two-layer correspondence is first pilot frequency design, the pilot frequency design of three layers and four layers correspondence is second pilot frequency design, and five layers, six layers, seven layers and eight layers of right pilot frequency design are the 3rd pilot frequency design.
Two-layer distribution method provided by the invention comprises: total number of plies of current transmission or order are M, M is divided into the k group, every group of corresponding one deck or two-layer, the layer of each group correspondence is different, when targeted customer's data are transmitted on two-layer, give the targeted customer with a set of dispense corresponding two-layer in the described k group, the transmission on the group correspondence of being distributed two-layer of targeted customer's data.
Further, when targeted customer's data were transmitted on two-layer, the proprietary reference signal (UE-specific reference signals) of the user of described two-layer correspondence adopted the code division multiplexing mode to transmit on identical physical resource.
Further, described data are Physical Downlink Shared Channel (PDSCH, Physical downlinkshared channel) data carried by data.
Further, corresponding two-layer its two-layer corresponding index value of group is n and n+1, and wherein, n is an even number.
Further, when total number of plies (order) of transmission was 3, corresponding two-layer its two-layer corresponding index value of group was 0 and 1.
Further, when total number of plies (order) of transmission is 4, perhaps, when pilot frequency design was second pattern, corresponding two-layer its two-layer corresponding index value of respectively organizing was 0 and 1,2 and 3.
Further, when total number of plies (order) of transmission was 5, corresponding two-layer its two-layer corresponding index value of respectively organizing was 0 and 1,2 and 3.
Further, when total number of plies (order) of transmission was 6 or 7, corresponding two-layer its two-layer corresponding index value of respectively organizing was 0 and 1,2 and 3,4 and 5, and perhaps, corresponding two-layer its two-layer corresponding index value of respectively organizing is 0 and 1, perhaps, and 2 and 3, perhaps, 4 and 6;
Further, when the transmission total number of plies (order) be 8, perhaps, when pilot frequency design is the 3rd pattern, corresponding two-layer its two-layer corresponding index value of respectively organizing is 0 and 1,2 and 3,4 and 5,6 and 7, perhaps, corresponding two-layer its two-layer corresponding index value of respectively organizing is 0 and 1,2 and 3,4 and 6,5 and 7;
Further, when targeted customer's data were transmitted on two-layer, the proprietary reference signal of the user of described two-layer correspondence adopted the frequency division multiplexing mode to transmit on different physical resources.
Further, corresponding two-layer its two-layer corresponding index value of group is m and m+2, and m is 0,1,4,5.
Further, when total number of plies (order) of transmission was 3, described two-layer corresponding index value was 0 and 2;
Further, total number of plies (order) of transmission is 4, and perhaps, when pilot frequency design was second pattern, corresponding two-layer its two-layer corresponding index value of respectively organizing was 0 and 2,1 and 3;
Further, when total number of plies (order) of transmission was 5, corresponding two-layer its two-layer corresponding index value of respectively organizing was 0 and 2,1 and 3;
Further, when total number of plies (order) of transmission was 6 or 7, corresponding two-layer its two-layer corresponding index value of respectively organizing was 0 and 2,1 and 3,4 and 6, and perhaps, corresponding two-layer its two-layer corresponding index value of respectively organizing is 0 and 2,1 and 3,4 and 5;
Further, total number of plies (order) of transmission is 8, and perhaps, when pilot frequency design was the 3rd pattern, corresponding two-layer its two-layer corresponding index value of respectively organizing was 0 and 2,1 and 3,4 and 6,5 and 7, perhaps, corresponding two-layer its two-layer corresponding index value of respectively organizing is 0 and 2,1 and 3,4 and 5,6 and 7.
Described layer index equals antenna port; For example, layer index 0 arrives antenna port 13 to layer index 7 corresponding to antenna port 7.
When user's data is transmitted on two-layer, described two-layer be to include two-layer one group in the above-mentioned grouping, just, described two-layer be a combination that provides layer index in the following method.
Method one
When a user's data is transmitted on two-layer, described two-layer correspondence the proprietary reference signal (UE-specific reference signals) of user on identical physical resource, adopt the code division multiplexing mode to transmit.
Method two
The index of described two-layer correspondence is n and n+1, and wherein, n is an even number.
When total number of plies (order) of transmission was 3, described two-layer corresponding index value was 0 and 1;
When the transmission total number of plies (order) be 4 or 5, perhaps, when pilot frequency design was second pattern, described two-layer corresponding index value was 0 and 1,2 and 3;
When total number of plies (order) of transmission was 6 or 7, described two-layer corresponding index value was 0 and 1,2 and 3,4 and 5;
When the transmission total number of plies (order) be 8, perhaps, when pilot frequency design was the 3rd pattern, described two-layer corresponding index value was 0 and 1,2 and 3,4 and 5,6 and 7.
Method three
When total number of plies (order) of transmission was 3, described two-layer corresponding index value was 0 and 1;
When the transmission total number of plies (order) be 4 or 5, perhaps, when pilot frequency design was second pattern, described two-layer corresponding index value was 0 and 1,2 and 3;
When total number of plies (order) of transmission was 6 or 7, described two-layer corresponding index value was 0 and 1,2 and 3,4 and 6;
When the transmission total number of plies (order) be 8, perhaps, when pilot frequency design was the 3rd pattern, described two-layer corresponding index value was 0 and 1,2 and 3,4 and 6,5 and 7.
Method four
When a user's data is transmitted on two-layer, described two-layer correspondence the proprietary reference signal of user on different physical resources, adopt the frequency division multiplexing mode to transmit.
Method five
The index of described two-layer correspondence is m and m+2, and wherein, m can be 0,1,4,5.
When total number of plies (order) of transmission was 3, described two-layer corresponding index value was 0 and 2;
When the transmission total number of plies (order) be 4 or 5, perhaps, when pilot frequency design was second pattern, described two-layer corresponding index value was 0 and 2,1 and 3;
When total number of plies (order) of transmission was 6 or 7, described two-layer corresponding index value was 0 and 2,1 and 3,4 and 6;
When the transmission total number of plies (order) be 8, perhaps, when pilot frequency design was the 3rd pattern, described two-layer corresponding index value was 0 and 2,1 and 3,4 and 6,5 and 7.
Method six
When total number of plies (order) of transmission was 3, described two-layer corresponding index value was 0 and 2;
When the transmission total number of plies (order) be 4 or 5, perhaps, when pilot frequency design was second pattern, described two-layer corresponding index value was 0 and 2,1 and 3;
When total number of plies (order) of transmission was 6 or 7, described two-layer corresponding index value was 0 and 2,1 and 3,4 and 5;
When the transmission total number of plies (order) be 8, perhaps, when pilot frequency design was the 3rd pattern, described two-layer corresponding index value was 0 and 2,1 and 3,4 and 5,6 and 7.
Illustrate that Multi-User Dimension is multiplexing may to be restricted to the M layer, for example, M=4, then, above-mentioned grouping situation greater than the M layer does not exist, and just is applied to the situation smaller or equal to the M layer.
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
The present invention also provides a kind of base station, described base station, be used for total number of plies of current transmission is divided into some groups, every group of corresponding one deck or two-layer, the layer of each group correspondence is different, when targeted customer's data are transmitted, give the targeted customer with a set of dispense corresponding two-layer in described some groups on two-layer.
Described base station is used for when targeted customer's data are transmitted on two-layer, adopts the code division multiplexing mode to transmit the proprietary reference signal of user of described two-layer correspondence on identical physical resource; Perhaps, on different physical resources, adopt the frequency division multiplexing mode to transmit the proprietary reference signal of user of described two-layer correspondence.
How the base station is specifically divided each group and be please refer to method embodiment, repeats no more herein.
The possibility of the two-layer transmission of user when the invention provides the multi-user and transmitting, by above-mentioned restriction for Distribution Layer, under the prerequisite that guarantees systematic function maximum optimization the expense of signaling.
The above is embodiments of the invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (14)
1. two-layer distribution method, it is characterized in that, comprise: total number of plies of current transmission is divided into some groups, every group of corresponding one deck or two-layer, the layer of each group correspondence is different, when targeted customer's data are transmitted, give the targeted customer with a set of dispense corresponding two-layer in described some groups on two-layer.
2. the method for claim 1 is characterized in that, when targeted customer's data were transmitted on two-layer, the proprietary reference signal of the user of described two-layer correspondence adopted the code division multiplexing mode to transmit on identical physical resource; Perhaps, the proprietary reference signal of the user of described two-layer correspondence adopts the frequency division multiplexing mode to transmit on different physical resources.
3. the method for claim 1 is characterized in that, its two-layer corresponding index value is respectively n and n+1 in the corresponding two-layer group, and wherein, n is an even number; Perhaps, be m and m+2, m is 0,1,4,5.
4. the method for claim 1 is characterized in that,
When total number of plies of transmission was 3, its two-layer corresponding index value was 0 and 1 in the corresponding two-layer group; Perhaps, 0 and 2.
5. the method for claim 1 is characterized in that, when total number of plies of transmission is 4 or 5, perhaps, when pilot frequency design was second pattern, its two-layer corresponding index value was 0 and 1,2 and 3 in corresponding each two-layer group; Perhaps be 0 and 2,1 and 3.
6. the method for claim 1 is characterized in that, when total number of plies of transmission was 6 or 7, its two-layer corresponding index value was 0 and 1,2 and 3,4 and 5 in each corresponding two-layer group, perhaps, and 0 and 1,2 and 3,4 and 6; Perhaps, 0 and 2,1 and 3,4 and 6, perhaps, 0 and 2,1 and 3,4 and 5.
7. the method for claim 1 is characterized in that, when the transmission total number of plies be 8, perhaps, when pilot frequency design is the 3rd pattern, its two-layer corresponding index value is 0 and 1,2 and 3,4 and 5,6 and 7 in each corresponding two-layer group, perhaps, 0 and 1,2 and 3,4 and 6,5 and 7; Perhaps, 0 and 2,1 and 3,4 and 6,5 and 7, perhaps, 0 and 2,1 and 3,4 and 5,6 and 7.
8. base station, it is characterized in that, described base station, be used for total number of plies of current transmission is divided into some groups, every group of corresponding one deck or two-layer, the corresponding layer of each group is different, when targeted customer's data transmits on two-layer, with a set of dispense corresponding two-layer in described some groups to the targeted customer.
9. base station as claimed in claim 8 is characterized in that, described base station is used for when targeted customer's data are transmitted on two-layer, adopts the code division multiplexing mode to transmit the proprietary reference signal of user of described two-layer correspondence on identical physical resource; Perhaps, on different physical resources, adopt the frequency division multiplexing mode to transmit the proprietary reference signal of user of described two-layer correspondence.
10. base station as claimed in claim 8 is characterized in that, described base station is used for dividing as follows each group: corresponding two-layer its two-layer corresponding index value of group is respectively n and n+1, perhaps be, m and m+2, wherein, n is an even number, m is 0,1,4,5.
11. base station as claimed in claim 8 is characterized in that, described base station is used for dividing as follows each group: when total number of plies of transmission was 3, corresponding two-layer its two-layer corresponding index value of group was 0 and 1; Perhaps, 0 and 2.
12. base station as claimed in claim 8 is characterized in that, described base station is used for dividing as follows each group:
When total number of plies of transmission is 4 or 5, perhaps, when pilot frequency design was second pattern, its two-layer corresponding index value was 0 and 1 in corresponding each two-layer group; 2 and 3; Perhaps be 0 and 2,1 and 3.
13. base station as claimed in claim 8 is characterized in that, described base station is used for dividing as follows each group:
When total number of plies of transmission was 6 or 7, its two-layer corresponding index value was 0 and 1,2 and 3,4 and 5 in each corresponding two-layer group, perhaps, and 0 and 1,2 and 3,4 and 6; Perhaps, 0 and 2,1 and 3,4 and 6, perhaps, 0 and 2,1 and 3,4 and 5.
14. base station as claimed in claim 8 is characterized in that, described base station is used for dividing as follows each group:
When total number of plies of transmission is 8, perhaps, when pilot frequency design was the 3rd pattern, its two-layer corresponding index value was 0 and 1,2 and 3,4 and 5,6 and 7 in corresponding each two-layer group, perhaps, 0 and 1,2 and 3,4 and 6,5 and 7, perhaps, 0 and 2,1 and 3,4 and 6,5 and 7, perhaps, 0 and 2,1 and 3,4 and 5,6 and 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010003606.2A CN101795189B (en) | 2010-01-07 | 2010-01-07 | A kind of two-layer distribution method and base station |
| PCT/CN2010/074632 WO2011082571A1 (en) | 2010-01-07 | 2010-06-28 | Method and base station for allocating layers |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010003606.2A CN101795189B (en) | 2010-01-07 | 2010-01-07 | A kind of two-layer distribution method and base station |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103069763A (en) * | 2010-08-18 | 2013-04-24 | Lg电子株式会社 | Method and apparatus for transmitting uplink data in a wireless access system |
| WO2017133306A1 (en) * | 2016-02-03 | 2017-08-10 | 华为技术有限公司 | Method and apparatus for transmitting pilot signal |
| WO2019173974A1 (en) * | 2018-03-13 | 2019-09-19 | Zte Corporation | Transmissions based on candidate resources or candidate resource groups |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101370192A (en) * | 2007-08-15 | 2009-02-18 | 中兴通讯股份有限公司 | High-rise informing method for demodulating reference signal mode in long-term evolution system |
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2010
- 2010-01-07 CN CN201010003606.2A patent/CN101795189B/en active Active
- 2010-06-28 WO PCT/CN2010/074632 patent/WO2011082571A1/en active Application Filing
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| CN101370192A (en) * | 2007-08-15 | 2009-02-18 | 中兴通讯股份有限公司 | High-rise informing method for demodulating reference signal mode in long-term evolution system |
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| QUALCOMM EUROPE: "UE-RS Patterns for ranks 5 to 8", 《3GPP R1-094869》 * |
| ZTE: "Further investigation on higher order DMRS design", 《3GPP R1-093808》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103069763A (en) * | 2010-08-18 | 2013-04-24 | Lg电子株式会社 | Method and apparatus for transmitting uplink data in a wireless access system |
| WO2017133306A1 (en) * | 2016-02-03 | 2017-08-10 | 华为技术有限公司 | Method and apparatus for transmitting pilot signal |
| US10680773B2 (en) | 2016-02-03 | 2020-06-09 | Huawei Technologies Co., Ltd. | Method and apparatus for transmitting pilot signal |
| WO2019173974A1 (en) * | 2018-03-13 | 2019-09-19 | Zte Corporation | Transmissions based on candidate resources or candidate resource groups |
| US11343828B2 (en) | 2018-03-13 | 2022-05-24 | Zte Corporation | Transmissions based on candidate resources or candidate resource groups |
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| Publication number | Publication date |
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| WO2011082571A1 (en) | 2011-07-14 |
| CN101795189B (en) | 2015-09-16 |
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