Abstract:
Bir veri sembolü için büyük bir modülasyon çoklu değerine sahip olan bir modülasyon sistemi kullanıldığında bile, bir kanaldaki her bir bitin konumunu korurken kanal tahmini doğruluğunun arttırıldığı bir kablosuz iletişim aparatı sağlanmaktadır. Kablosuz iletişim aparatında (100), bir kodlama bölümü (101) veriyi (bit dizisi) kodlar ve bir bit dönüştürme bölümüne (102) gönderir ve bit dönüştürme bölümü (102), kodlanmış bit dizileri arasında, kanal tahmini için kullanılacak bir veri sembolünü oluşturan çok sayıda bitin en az bir bitini `1? veya `0? a dönüştürür ve bir modülasyon bölümüne (103) gönderir. Modülasyon bölümü (103), tek bir modülasyon eşleştiricisi kullanılarak bit dönüştürme bölümünden (102) girilen bit dizisini modüle eder ve çok sayıda veri sembolü oluşturulur.
Abstract:
THE INVENTION RELATES TO A METHOD FOR PROVIDING CONTROL SIGNALLING ASSOCIATED TO A PROTOCOL DATA UNIT CONVEYING USER DATA IN A MOBILE COMMUNICATION SYSTEM AND TO THE CONTROL CHANNEL SIGNAL ITSELF. FURTHERMORE, THE INVENTION ALSO PROVIDES A MOBILE STATION AND A BASE STATION AND THEIR RESPECTIVE OPERATION IN VIEW OF THE NEWLY DEFINED CONTROL CHANNEL SIGNALS DEFINED HEREIN. IN ORDER TO REDUCE THE CONTROL CHANNEL OVERHEAD, THE INVENTION SUGGESTS DEFINING A COMMON FIELD FOR THE TRANSPORT FORMAT AND REDUNDANCY VERSION IN THE CONTROL CHANNEL INFORMATION FORMAT. ACCORDING TO ONE APPROACH, THE COMMON FIELD IS USED TO JOINTLY ENCODE TRANSPORT FORMAT AND REDUNDANCY VERSION THEREIN. ACCORDING TO ANOTHER ASPECT, ONE SHARED FIELD IS PROVIDED ON THE CONTROL CHANNEL SIGNAL THAT INDICATES EITHER A TRANSPORT FORMAT OR A REDUNDANCY VERSION DEPENDING OF WHETHER THE CONTROL CHANNEL SIGNAL RELATES TO AN INITIAL TRANSMISSION OR A RETRANSMISSION. IN ANOTHER EMBODIMENT, FURTHER ENHANCEMENTS TO A HARQ PROTOCOL ARE SUGGESTED FOR ADDRESSING CERTAIN ERROR CASES. THE MOST ILLUSTRATIVE DRAWING ACCOMPANYING THE ABSTRACT:
Abstract:
PROBLEM TO BE SOLVED: To provide a method for deactivating a semi-persistent resource allocation in an LTE-based mobile communication system.SOLUTION: There is provided user equipment that executes: the steps of receiving control signaling including a New Data Indicator field and a modulation/coding scheme field from a Node B via a control channel; and deactivating a semi-persistent resource allocation, if the New Data Indicator field and the modulation/coding scheme field of the control signaling signal a predetermined combination of a New Data Indicator value and a modulation/coding scheme index.
Abstract:
PROBLEM TO BE SOLVED: To prevent system throughput from deteriorating due to decrease in utilization efficiency of channel communication resources for frequency diversity transmission when using a multicarrier communication performing frequency scheduling transmission and the frequency diversity transmission simultaneously.SOLUTION: A modulation part (12) performs a modulation processing to a coded Dch data so as to generate a Dch data symbol. A modulation part (22) performs a modulation processing to a coded Lch data so as to generate an Lch data symbol. An allocation part (103) allocates the Dch data symbol and the Lch data symbol to each subcarrier composing an OFDM symbol and outputs to a multiple part (104). At this time the allocation part (103) allocates the Dch data symbol to a plurality of resource blocks where a Dch is disposed at intervals which are an integral multiple of a resource block number composing a resource block group.
Abstract:
PROBLEM TO BE SOLVED: To provide a mechanism for deactivating a semi-persistent resource allocation in an LTE system.SOLUTION: A method comprises the steps of: generating control signal in which a value in a New Data indicator field and a modulation and coding scheme index in a modulation and coding scheme field indicate a predetermined combination, when deactivating a semi-persistent resource allocation of a mobile terminal; transmitting the control signal including the New Data Indicator field and the modulation and coding scheme field via a control channel to the mobile terminal; and deactivating the semi-persistent resource allocation.
Abstract:
PROBLEM TO BE SOLVED: To reduce the amount of bits required for control channel signaling.SOLUTION: In a mobile terminal, a transport format and a redundancy version at an initial transmission or a retransmission of a PDU for conveying user data are determined based on a received control channel signal, and the PDU is transmitted on physical radio resources using the transport format and the redundancy version indicated in the control channel signal. The control channel signal comprises a control information field in which a transport format and a redundancy version are jointly encoded, and the control information field consists of a number of bits yielding a range of values that can be represented in the control information field. A first subset of the values is reserved for indicating a transport format and a second subset of values whose values are different from the first subset of values is reserved for indicating a redundancy version.
Abstract:
PROBLEM TO BE SOLVED: To prevent system throughput from deteriorating due to decrease in utilization efficiency of channel communication resources for frequency diversity transmission when using a multicarrier communication performing frequency scheduling transmission and the frequency diversity transmission simultaneously.SOLUTION: A modulation part (12) performs a modulation processing to a coded Dch data so as to generate a Dch data symbol. A modulation part (22) performs a modulation processing to a coded Lch data so as to generate an Lch data symbol. An allocation part (103) allocates the Dch data symbol and the Lch data symbol to each subcarrier composing an OFDM symbol and outputs to a multiple part (104). At this time the allocation part (103) allocates the Dch data symbol to a plurality of resource blocks where a Dch is disposed at intervals which are an integral multiple of a resource block number composing a resource block group.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for configuring a control channel on the mobile communication network side and the mobile station side, and to provide a reception entity.SOLUTION: A method executed by the reception entity includes the steps of: receiving control information transmitted by any one of a plurality of control information formats each having a different number of bits, by a physical resource as coded control information bits having a given integer multiple of a given number of bits; based on that the control information is coded to the given integer multiple of the given number of bits, detecting the control information bits from the physical resource; and decoding the detected coded control information bits to one of the plurality of control information formats having the different number of bits so as to acquire the control information.
Abstract:
PROBLEM TO BE SOLVED: To prevent degradation of utilization efficiency of a communication resource of a channel for performing frequency diversity transmission at the time when both frequency scheduling transmission and the frequency diversity transmission are performed simultaneously in multicarrier communication.SOLUTION: A modulation part 12 performs a modulation process on Dch data after encoding, to generates Dch data symbol. A modulation part 22 performs a modulation process on Lch data after encoding, to generates Lch data symbol. An allocation part 103 allocates the Dch data symbol and the Lch data symbol to each subcarrier constituting an OFDM symbol, and outputs them to a multiplex part 104. In this case, if the allocation part 103 uses a plurality of Dchs for the Dch data symbol of one mobile station, Dchs of consecutive channel numbers are employed.