Source: https://patents.google.com/patent/USRE47126E1/en
Timestamp: 2020-01-22 11:29:58
Document Index: 400169483

Matched Legal Cases: ['§ 119', 'Application No. 61', 'Application No. 61', '§119', 'Application No. 61', 'Application No. 2015105143260', 'application No. 11780815', 'Application No. 11780815', 'Application No. 2016', 'Application No. 10', 'Application No. 10', 'Application No. 2013']

USRE47126E1 - Systems and methods for PUCCH feedback in 3GPP wireless networks - Google Patents
USRE47126E1
USRE47126E1 US14/957,358 US201514957358A USRE47126E US RE47126 E1 USRE47126 E1 US RE47126E1 US 201514957358 A US201514957358 A US 201514957358A US RE47126 E USRE47126 E US RE47126E
US14/957,358
2015-12-02 Priority to US14/957,358 priority patent/USRE47126E1/en
2018-09-04 Assigned to SAMSUNG ELECTRONICS CO., LTD reassignment SAMSUNG ELECTRONICS CO., LTD ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LIU, LINGJIA, HAN, YOUNG-HAN, ZHANG, JIANZHONG
2018-11-13 Publication of USRE47126E1 publication Critical patent/USRE47126E1/en
The present application is related to an application for reissue of U.S. Pat. No. 8,599,761, issued Dec. 3, 2013 on U.S. Non-Provisional patent application Ser. No. 13/104,644 filed May 10, 2011, and claims the priority to and the benefit under 35 U.S.C. § 119(e) of the filing date of U.S. Provisional Patent Application No. 61/334,685, filed May 14, 2010, entitled “PUCCH CQI/PMI/RI FEEDBACK IN REL-10”. Provisional Patent Application No. 61/334,685 is assigned to the assignee of the present application and The content of the above-identified patent documents is hereby incorporated by reference into the present application as if fully set forth herein. The present application hereby claims priority under 35 U.S.C. §119(e) to U.S. Provisional Patent Application No. 61/334,685.
In the RAN1 #60bis meeting, another way forward on mobile station (or UE) feedback in Release 10 was also agreed upon. A precoder, W, for a subband is a function of two matrices, W1 and W2, (i.e., where W1ϵC1 and W2ϵC2). W1 is also referred to as a first PMI, and W2 is also referred to as a second PMI in this disclosure. The codebooks C1 and C2 are codebook 1 and codebook 2, respectively. The first PMI targets wideband (or long-term) channel properties. The second PMI targets frequency-selective (or short-term) channel properties. For the physical uplink control channel (PUCCH), the feedback corresponding to the first PMI and the second PMI may be sent in different or the same subframe, unless the payload is too large to send the first PMI and the second PMI in the same subframe on PUCCH. Also, periodic and aperiodic reports are independent.
H = [ a 11 a 12 … a 1 ⁢ ⁢ M a 21 a 22 … a 2 ⁢ ⁢ M ⋮ ⋮ … ⋮ a N ⁢ ⁢ 1 a M ⁢ ⁢ 2 … a NM ] .
In the present disclosure, two matrix indices specify a precoder. More specifically, a matrix index specifies W1ϵC1 and a matrix index specifies W2ϵC2, where C1 and C2 are two codebooks. The rank of the codeword W=W1×W2 (or W2×W1) is defined as the rank of W.
[ w → ⁢ 0 0 w → ⁢ ] ,
r 1 = ∑ k ⁢ = ⁢ 2 8 ⁢ r k ⁢ ⁢ and ⁢ ⁢ ∑ k ⁢ = ⁢ 2 4 ⁢ ⁢ r k = ∑ k ⁢ = ⁢ 5 8 ⁢ ⁢ r k .
W = [ w ~ 0 0 w ~ ] ⁡ [ 1 α ] , α ⁢ ∈ ⁢ { 1 , ⁢ - 1 , ⁢ j , ⁢ - 1 } ,
where the antenna group beam {tilde over (w)}ϵG(1,2) and where
( [ G q ( Q ) ] ) mn = exp ⁡ ( j ⁢ ⁢ 2 ⁢ π N T / 2 ⁢ m ( n + q Q ⁢ ) ) , q = 0 , 1 , … ⁢ , Q - 1.
W = [ w ~ 0 0 w ~ ] ⁡ [ 1 α ] , α ⁢ ∈ ⁢ { 1 , ⁢ - 1 , ⁢ j , ⁢ - 1 } , w ~ ⁢ ∈ ⁢ G q ( 1 , ⁢ 4 ) .
In one embodiment of the disclosure, the overall precoding matrices may be partitioned into K subsets, wherein a ┌ log2 (K)┐ bits subset indicator (SI) is reported from the mobile station to the network to indicate to which subset the recommended overall precoding matrix of the mobile station belongs.
Alternatively, the PUSCH and PUCCH codebooks may have the following relationship: C1 PUCCH⊂C1 PUSCH and C2 PUCCH⊂C2 PUSCH. This allows for the possibility that both PUCCH and PUSCH feedback have the same feedback granularity for wideband feedback. The codebook of PUCCH can be subset-restricted from that of the PUSCH codebook. The restricted subset could be signaled through higher layer signaling, and mechanisms to perform a restricted subset could reuse the same ones defined in Rel-8.
r 1 + r 2 = ∑ k = 3 8 ⁢ r i ,
then the restricted codebook for PUCCH feedback should have the property.
a transmitting unit coupled to the at least one antenna and configured to transmit, via the at least one antenna, feedback values in a physical uplink control channel (PUCCH) to a base station of the wireless network;
a receiving unit coupled to the at least one antenna and configured to receive from a mobile station, via the at least one antenna, feedback values transmitted in a physical uplink control channel (PUCCH);
a mobile station configured to determine feedback values; and
a transmitting unit within the mobile station, the mobile station configured to transmit the feedback values to a base station, wherein the feedback values include,
in a first subframe, a channel quality indicator (CQI) for a subset of two or more subbands and a precoder matrix indicator (PMI) selected from a codebook subset for transmission over the subset of subbands, and
in a second subframe, a value indicating a subband of the subset of subbands and CQI for the indicated subband.
22. The mobile station as set forth in claim 21, wherein the mobile station is further configured to transmit the value indicating the subband of the subset of subbands to the base station in a physical uplink control channel (PUCCH).
23. The mobile station as set forth in claim 22, wherein a period at which the mobile station transmits the CQI for the subset of subbands and the PMI is a multiple of a period at which the mobile station transmits the value indicating the subband of the subset of subbands.
24. A method of operating a mobile station, the method comprising:
transmitting, from the mobile station to a base station in a first subframe, a channel quality indicator (CQI) for a subset of subbands and a precoder matrix indicator (PMI) selected from a codebook subset for transmission over the selected subset of subbands; and
transmitting, from the mobile station to the base station in a second subframe, a value indicating a subband of the subset of subbands and CQI for the indicated subband.
transmitting the value indicating the subband of the subset of subbands to the base station in a physical uplink control channel (PUCCH).
26. The method as set forth in claim 25, wherein a period at which the mobile station transmits the CQI for the subset of subbands and the PMI is a multiple of a period at which the mobile station transmits the value indicating the subband of the subset of subbands.
a base station configured to process received signals; and
a receiving unit within the base station, the receiving unit configured to receive feedback values from a mobile station, wherein the feedback values include,
28. The system as set forth in claim 27, wherein the base station is further configured to receive the value indicating the subband of the subset of subbands from the mobile station in a physical uplink control channel (PUCCH).
29. The system as set forth in claim 27, wherein a period at which the base station receives the CQI for the subset of subbands and the PMI is a multiple of a period at which the mobile station transmits the value indicating the subband of the subset of subbands.
30. A method of operating a base station, the method comprising:
receiving, from a mobile station at the base station in a first subframe, a channel quality indicator (CQI) for a subset of two or more subbands and a precoder matrix indicator (PMI) selected from a codebook subset for transmission over the subset of subbands; and
receiving, from the mobile station at the base station in a second subframe, a value indicating a subband of the subset of subbands and CQI for the indicted subband.
receiving the value indicating the subband of the subset of subbands at the base station in a physical uplink control channel (PUCCH).
32. The method as set forth in claim 31, wherein a period at which the base station receives the CQI for the subset of subbands and the PMI is a multiple of a period at which the mobile station transmits the value indicating the subband of the subset of subbands.
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Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LIU, LINGJIA;ZHANG, JIANZHONG;HAN, YOUNG-HAN;SIGNING DATES FROM 20110607 TO 20110706;REEL/FRAME:046783/0012