Baseband processors, base station, user device, and methods thereof
A baseband processor and user equipment technology, applied in the direction of forward error control, error prevention/detection using return channel, digital transmission system, etc., can solve problems such as low reliability and serious results, and achieve improved reliability, Good detection performance and reduced overhead
Active Publication Date: 2018-03-27
HUAWEI TECH CO LTD
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Problems solved by technology
Compared to RRC signaling, dynamic signaling via physical control channels is faster but less reliable
Therefore, if the signaling is not detected correctly, one problem is that UE and eNodeB will assume different number and / or order of HARQ-ACK bits
This will generate a large number of ACK-to-NACK errors and NACK-to-ACK errors for that HARQ-ACK bit, so the results can be severe
Method used
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[0111] The set of two codewords whose minimum Hamming distance is 8
[0112] e (0) =[0,0,0,0,0,0,0,0]
[0113] e (1) =[1,1,1,1,1,1,1,1]
[0114] A set of three codewords with a minimum Hamming distance of 5
[0115] e (0) =[0,0,0,0,0,0,0,0]
[0116] e (1) =[1,1,1,1,1,1,0,0]
[0117] e (2) =[0,0,1,1,1,1,1,1]
[0118] A set of four codewords with a minimum Hamming distance of 5
[0119] e (0) =[0,0,0,0,0,0,0,0]
[0120] e (1) =[0,1,1,0,1,1,0,1]
[0121] e (2) =[1,0,1,1,0,1,1,0]
[0122] e (3) =[1,1,0,1,1,0,1,1]
[0123] According to this embodiment, for different binary codewords, the minimum Hamming distance between codewords of the nonlinear code may be different.
[0124] One advantage of nonlinear codes is that codewords can be chosen such that the minimum distance between a particular codeword and other codewords is maximized. For the example given above for a set of three codewords, e (1) and e (0) The minimum distance between is 6, e (1) and e ...
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The present invention relates to a baseband processor (600), comprising a receiver circuit configured to receive a downlink carrier aggregation transmission, wherein the baseband processor (600) further comprises an encoder (102) configured to generate a Cyclic Redundancy Check, CRC, code word based on at least one Hybrid Automatic Repeat Request - Acknowledgment, HARQ-ACK, feedback bit in response to the downlink carrier aggregation transmission, jointly encode at least one radio network parameter (P) of a user device (100) with the CRC code word, and generate an uplink control information message (M) comprising the at least one HARQ-ACK feedback bit and the jointly encoded radio network parameter and CRC code word. The present invention also relates to a baseband processor (700), comprising: a receiver circuit (304) configured to receive an uplink control information message (M) in an uplink channel, the uplink control information message (M) comprising at least one HARQ-ACK feedbackbit in response to a downlink carrier aggregation transmission and at least one jointly encoded radio network parameter and CRC code word for a user device (100), wherein the CRC code word is based on the at least one HARQ-ACK feedback bit; and a decoder (302) configured to decode the received uplink control information message (M) and output the at least one HARQ-ACK feedback bit and the radio network parameter (P) if a correct CRC condition is met. Furthermore, the present invention also relates to corresponding methods, a wireless communication system, a computer program, and a computer program product.
Description
technical field [0001] The present invention relates to a baseband processor, a base station, and user equipment. Furthermore, the invention relates to corresponding methods, wireless communication systems, computer programs, and computer program products. Background technique [0002] Downlink carrier aggregation is a bandwidth expansion method that increases a users data rate by allowing the user to receive data on multiple carriers simultaneously. When combined with uplink Hybrid Automatic Repeat Request (HARQ) feedback signaling, by utilizing adaptive coding and modulation, while considering reporting Channel State Information (CSI) reports into scheduling operations , high throughput can be obtained. Uplink control information (Uplink Control Information, UCI) signaling, such as HARQ acknowledgment (HARQ-ACK), periodic CSI, aperiodic CSI, scheduling request (Scheduling Request, SR), etc., constitute uplink overhead, which is usually affected by the aggregated carrier ...
Claims
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IPC IPC(8): H04L1/16H04L1/12H04L1/00
CPCH04L1/0061H04L1/0072H04L1/1614H04L1/1671H04L2001/125H04L1/004H04L1/1812H04L1/1861
Inventor 富兰崛克·伯根阿尔伯托·杰赛普·佩罗蒂
Owner HUAWEI TECH CO LTD