CN101998507A - Transmission method and system of downlink control signalling - Google Patents
Transmission method and system of downlink control signalling Download PDFInfo
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Abstract
The invention discloses a transmission method of a downlink control signalling, comprising the following steps of: setting a mode select bit in a grouping special control channel by an eNode B according to an uplink transmitting mode to be configured for UE (User Equipment), forming the transmitting format of the DCI (Downlink Control Signalling) by using the mode select bit and an uplink authorization information bit and transmitting to the UE; and configuring the uplink transmitting mode by the UE according to the analyzed value of the mode select bit, the information of the uplink authorization information bit and the information of an ACK/NACK (Acknowledgement /Negative Acknowledgement) bit. The invention also discloses a transmission system of the downlink control signalling. The invention can be used for realizing that the eNode B enables the uplink authorizations of a mode 1 and a mode 2 of the UE to be compatible through the uniform DCI transmitting mode.
Description
Technical Field
The present invention relates to transmission technologies in wireless communications, and in particular, to a method and a system for transmitting downlink control signaling.
Background
In an LTE-a (Long Term Evolution-advanced) system, a User Equipment (UE) supports more transmit antennas, such as: and the antenna configuration supporting the uplink 4 sending and 4 receiving improves the uplink data throughput compared with the LTE release8 version. Uplink grant information (UL grant) required by the user equipment is included in downlink control signaling (DCI), and an evolved node B (eNode B) notifies the user equipment of information such as resource allocation, transmission mode, retransmission format, and the like, related to the user equipment by transmitting the DCI to the user equipment.
In the 3GPP 56 conferences, for the uplink transmission mode, the following conclusions are made:
1. selecting two Modulation Code Scheme (MCS);
2. two emission modes were studied, including: mode 1 and mode 2.
Wherein mode 1 is a mode without spatial packing of hybrid automatic repeat request response (HARQ-ACK) and without layer switching; space packing and layer exchange are not adopted, so that the scheduling flexibility can be brought, a higher MCS scheme can be used in the mode 1 under the condition of better channel conditions, and the system flexibility is increased. When the uplink grant is in mode 1, the DCI transmitted by the eNode B requires separate acknowledgement/non-acknowledgement (ACK/NACK) information of a retransmission indicator channel (PHICH), New Data Indicator (NDI) information of a Packet Dedicated Control Channel (PDCCH), and Redundancy Version (RV) information for a transport block of each Codeword (CW).
The DCI transmission format in mode 1 is shown in fig. 1, and in a manner used in 3GPP release8, 5-bit information is used to indicate modulation-coded redundancy version (MCS-RV) information of the CW1 and CW2 transport blocks, respectively, 1-bit information is used to indicate NDI information of the CW1 and CW2 transport blocks, respectively, and the 12-bit information is included in the PDCCH; ACK/NACK information of the CW1 and CW2 transport blocks is represented using 1-bit information, respectively, and the 2-bit information is included in the PHICH.
Mode 2 is a mode of HARQ-ACK space packing of band layer exchange; the HARQ-ACK space packing of the band layer exchange is adopted, for the condition of channel imbalance, the channel decoding accuracy is improved through exchange, and the overall performance is improved. When the uplink authorization is in a mode 2, the DCI transmitted by the eNO de B mainly influences the NDI information in the DCI of the PDCCH and the ACK/NACK information of the PHICH, and the transmission blocks of the two code words use the same NDI bit and the same ACK/NACK bit, so that the DCI expenses of the 1-bit NDI bit and the 1-bit ACK/NACK bit can be saved;
the DCI transmission format in mode 2 is shown in fig. 2, and in a manner used in 3GPP release8, 5-bit information is used to indicate MCS-RV information of a CW1 transport block and a CW2, and 1-bit information is used to indicate NDI information common to the CW1 and the CW2 transport blocks, and 11-bit information is included in the PDCCH; further, 1-bit information is used to indicate ACK/NACK information common to the CW1 and CW2 transport blocks, and this 1-bit information is included in the PHICH.
In both modes, hybrid automatic repeat request (HARQ) technology is used to implement adaptivity to channel conditions and higher order modulation algorithms, so as to improve the data transmission rate and spectral efficiency of the system. HARQ, as a link adaptation technique, provides a system with accurate data rate adjustment based on channel conditions, and this function is mainly implemented by controlling the retransmission data version through rate matching and bit rearrangement. Wherein, HARQ-ACK indicates that the information block with transmission failure is not retransmitted, and HARQ-NACK indicates that the information block with transmission failure is retransmitted.
As described above, based on the current LTE-a technology, the mode 1 and the mode 2 have respective advantages in different scenarios, but there is no unified DCI transmission format at present, and uplink grants compatible with the two uplink transmission modes of the mode 1 and the mode 2 are available.
Disclosure of Invention
In view of this, the main objective of the present invention is to provide a method and a system for transmitting downlink control signaling, so that DCI can be compatible with uplink grants of two uplink transmission modes, i.e., mode 1 and mode 2.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the invention provides a transmission method of a downlink control signaling, which comprises the following steps:
the eNode B sets a mode selection bit in the PDCCH, and forms a DCI transmission format by the mode selection bit and the uplink authorization information bit and sends the DCI transmission format to the UE;
and the UE configures an uplink transmitting mode according to the value of the mode selection bit in the analyzed DCI and the information of the uplink authorization information bit and the information of the acknowledgement/non-acknowledgement ACK/NACK bit of the DCI.
In the foregoing scheme, the setting, by the eNode B, the mode selection bit in the PDCCH specifically includes: the eNode B assigns a mode selection bit according to an uplink transmission mode to be configured for the UE;
setting the value of the mode selection bit to be 1 when the uplink transmission mode to be configured for the UE is mode 1; and when the uplink transmission mode to be configured for the UE is the mode 2, setting the value of the mode selection bit to be 0.
In the scheme, before sending the DCI to the UE, the eNode B configures an uplink authorization information bit in the DCI and an ACK/NACK bit in a PHICH; wherein, the uplink authorization information bit includes: the MCS-RV bit of 5bits and the NDI bit of 1bit of each code word, and the two code words are 12bits in total.
In the foregoing solution, the configuring the uplink grant information bit in the DCI and the ACK/NACK bit in the PHICH specifically includes:
when the uplink transmission mode to be configured for the UE is a mode 1, configuring an independent MCS-RV bit with 5bits and an independent NDI bit with 1bit for each code word, and configuring an independent ACK/NACK bit with 1bit for each code word; when the uplink transmission mode to be configured for the UE is a mode 2, each code word is configured with an independent MCS-RV bit of 5bits, and only a 1-bit NDI bit and a 1-bit ACK/NACK bit of the first code word are configured and shared by the two code words, and the NDI bit of the second code word is empty.
In the above scheme, the information of the ACK/NACK bit is sent to the UE while the DCI is sent to the UE.
In the foregoing scheme, the DCI transmitted to the UE includes: a mode select bit, a first codeword and a second codeword; wherein, the highest bit is a mode selection bit, and the value is 1 or 0; among the rest bits, the upper 6 bits are the 5bits MCS-RV bit and the 1bit NDI bit of the first code word; when the mode selection bit is 0, the NDI bit is shared by two code words; the lower 6 bits are the 5bits MCS-RV bit and the 1bit NDI bit of the second code word; when the mode select bit is 0, the NDI bit is null.
In the foregoing scheme, the configuring an uplink transmission mode according to the information of the uplink grant information bit and the information of the ACK/NACK bit of the DCI specifically includes:
when the value of the mode selection bit in the analyzed DCI is 1, configuring an uplink transmission mode according to the information of the 5-bit sMCS-RV bit, the 1-bit NDI bit and the 1-bit ACK/NACK bit of each code word respectively;
when the value of the mode selection bit in the analyzed DCI is 0, configuring an uplink transmission mode according to the information of the 5-bit sMCS-RV bit of each code word, and configuring the uplink transmission mode according to the information of the 1-bit NDI bit shared by the two code words and the information of the shared 1-bit ACK/NACK bit.
The invention also provides a transmission system of the downlink control signaling, which comprises:
the eNode B is used for setting a mode selection bit in the PDCCH, and forming a DCI transmission format by the mode selection bit and the uplink authorization information bit and sending the DCI transmission format to the UE;
and the UE is used for receiving the DCI, decoding the DCI according to the transmitting format of the DCI, and configuring an uplink transmitting mode according to the information of the uplink authorization information bit and the information of the ACK/NACK bit according to the value of the mode selection bit in the analyzed DCI.
In the above scheme, the eNode B is further configured to configure an uplink grant information bit in DCI and an ACK/NACK bit in PHICH according to an uplink transmission mode to be configured for the UE; the UE is also used for sending the information of the ACK/NACK bit to the UE at the same time of sending the DCI; the UE is further configured to receive information of ACK/NACK bits.
In the foregoing aspect, the eNode B further includes:
a mode bit configuration module, configured to define 1bit in the PDCCH as a mode selection bit for configuration according to an uplink transmission mode to be configured for the UE;
an uplink authorization configuration module, configured to configure uplink authorization information bits in the DCI;
the ACK/NACK configuration module is used for configuring ACK/NACK bits in the PHICH;
the DCI sending module is used for forming a DCI transmitting format by the 1bit mode selection bit of the mode bit configuration module and the 12bits uplink authorization information bit of the uplink authorization configuration module and transmitting the DCI transmitting format to the UE;
and the ACK/NACK sending module is used for sending the information of the ACK/NACK position configured by the ACK/NACK configuration module to the UE.
In the foregoing solution, the UE further includes:
a receiving module, configured to receive DCI and ACK/NACK bit information sent by an eNode B;
a decoding module, configured to decode the DCI received by the receiving module;
the first configuration module is used for configuring an uplink transmission mode according to the uplink authorization information of the DCI according to the value of the mode selection bit of the DCI analyzed by the decoding module;
and the second configuration module is used for configuring the uplink transmission mode according to the ACK/NACK bit information received by the receiving module according to the value of the mode selection bit of the DCI analyzed by the decoding module.
The invention provides a transmission method and a system of a downlink control signaling.A mode selection bit is set in a PDCCH by an eNode B according to an uplink transmission mode to be configured for UE, a DCI transmission format formed by the mode selection bit and an uplink authorization information bit is sent to the UE, and simultaneously, information of an ACK/NACK bit is sent to the UE; and the UE configures an uplink transmitting mode according to the information of the DCI uplink authorization information bit and the information of the ACK/NACK bit according to the value of the mode selection bit in the analyzed DCI. Therefore, the uplink authorization of the eNode B in two uplink transmission modes of the mode 1 and the mode 2 of the UE can be compatible with the uniform DCI transmission format, so that the base station can configure the UE in different uplink transmission modes in different scenes, and better system gain is obtained.
Drawings
Fig. 1 is a schematic diagram of a DCI transmission format with an uplink grant in mode 1 in the prior art;
fig. 2 is a schematic diagram of a DCI transmission format with an uplink grant in mode 2 in the prior art;
fig. 3 is a flowchart illustrating a method for implementing downlink control signaling transmission according to the present invention;
fig. 4 is a schematic diagram of DCI transmission formats of an uplink grant compatible mode 1 and a mode 2 in the present invention;
fig. 5 is a schematic structural diagram of a system for implementing downlink control signaling transmission in the present invention.
Detailed Description
The basic idea of the invention is: the eNode B sets a mode selection bit in the PDCCH, and forms a DCI transmission format by the mode selection bit and the uplink authorization information bit and sends the DCI transmission format to the UE; and the UE configures an uplink transmission mode according to the value of the mode selection bit in the analyzed DCI and the information of the uplink authorization information bit and the information of the ACK/NACK bit of the DCI, so that the eNode B is compatible with the uplink authorization of two uplink transmission modes of the mode 1 and the mode 2 of the UE in a uniform DCI transmission format.
Here, the mode selection bits occupy 1bit, and the eNode B assigns the mode selection bits according to the uplink transmission mode to be configured for the UE; the value of the mode selection bit in the parsed DCI is: and the UE decodes the DCI according to the transmission format of the DCI.
Further, the eNode B configures an uplink grant information bit in the DCI and an ACK/NACK bit in the PHICH, and transmits the information of the ACK/NACK bit to the UE while transmitting the DCI.
The invention is further described in detail below with reference to the drawings and the specific embodiments.
Fig. 3 shows a method for implementing transmission of downlink control signaling, which includes the following steps:
step 301: the eNode B sets a mode selection bit in the PDCCH and assigns a value to the mode selection bit according to an uplink transmission mode to be configured for the UE;
wherein, the mode selection bit occupies 1 bit; the assignment of the mode selection bits is specifically as follows: when an uplink transmission mode to be configured for the UE by the eNode B is a mode 1, setting the value of a mode selection bit in the PDCCH as 1; and when the uplink transmission mode to be configured for the UE by the eNode B is the mode 2, setting the value of the mode selection bit in the PDCCH as 0.
Step 302: configuring an uplink authorization information bit in the DCI and an ACK/NACK bit in the PHICH according to an uplink transmission mode to be configured for the UE;
specifically, the uplink grant information bits include: the MCS-RV bit of 5bits and the NDI bit of 1bit of each code word, and the two code words are 12bits in total;
when the uplink transmission mode to be configured for the UE is a mode 1, configuring an independent MCS-RV bit with 5bits and an NDI bit with 1bit for each code word, and configuring an independent ACK/NACK bit with 1bit for each code word;
when the uplink transmission mode to be configured for the UE is the mode 2, each code word is configured with a single MCS-RV with 5bits, only the 1-bit NDI bit and the 1-bit ACK/NACK bit of the first code word are configured and shared by the two code words, and the NDI bit of the second code word is empty.
Step 303: the mode selection bit and the uplink authorization information bit form a DCI transmission format and are sent to the UE;
in this step, the DCI transmission format is shown in fig. 4 and includes a mode selection bit, CW1 and CW2, where the mode selection bit is the highest bit and takes a value of 1 or 0; when the value is 1, the uplink transmission mode is configured to be mode 1; when the value is 0, the uplink transmission mode is configured to be mode 2;
of the other 12bits, the upper 6 bits are the 5bits MCS-RV bit and 1bit NDI bit of CW 1; when the mode select bit is 0, the NDI bit is common to CW1 and CW 2; the low 6 bits are 5bits MCS-RV bit and 1bit NDI bit of CW 2; when the mode selection bit is 0, the NDI bit is null;
in this step, the information of the ACK/NACK bit may be further sent to the UE at the same time.
Step 304: the UE configures an uplink transmitting mode according to the information of the uplink authorization information bit and the information of the ACK/NACK bit of the DCI according to the value of the mode selection bit of the analyzed DCI;
specifically, when receiving the DCI and ACK/NACK bit information, the UE decodes the DCI according to the DCI transmission format, and when the value of the mode selection bit in the parsed DCI is 1, it indicates that the uplink transmission mode is mode 1, and without spatial packing and layer switching, configures the uplink transmission mode according to the information of the 5bits MCS-RV bit, the 1bit NDI bit, and the 1bit ACK/NACK bit of each codeword, respectively; when the value of the mode selection bit in the analyzed DCI is 0, the uplink transmission mode is indicated to be mode 2, HARQ-ACK space packing with layer exchange is adopted, the uplink transmission mode is configured according to the information of the 5bits MCS-RV bit of each code word, and the uplink transmission mode is configured according to the information of the 1bit NDI bit shared by the two code words and the information of the shared 1bit ACK/NACK bit. So far, the UE configuration is completed.
In order to implement the above method, the present invention further provides a system for transmitting downlink control signaling, as shown in fig. 5, the system includes: eNode B51, UE 52; wherein,
the eNode B51 is configured to set a mode selection bit in the PDCCH, and form a DCI transmission format with the mode selection bit and an uplink authorization information bit to send to the UE 52;
here, the mode selection bit occupies 1 bit; eNode B51 assigns a mode selection bit according to the uplink transmission mode to be configured for UE 52;
the eNode B51 is further configured to configure an uplink grant information bit in the DCI and an ACK/NACK bit in the PHICH according to an uplink transmission mode to be configured for the UE 52;
the eNode B51 is also configured to transmit information of ACK/NACK bits to the UE 52 simultaneously with the transmission of DCI.
The UE 52 is configured to receive the DCI, decode the DCI according to the DCI transmission format, and configure an uplink transmission mode according to the value of the mode selection bit in the parsed DCI and the information of the uplink grant information bit and the information of the ACK/NACK bit;
the UE 52 is also configured to receive information of ACK/NACK bits.
The eNode B51 further comprises: a mode bit configuration module 511, an uplink authorization configuration module 512, an ACK/NACK configuration module 513, a DCI sending module 514, and an ACK/NACK sending module 515;
a mode bit configuration module 511, configured to set a mode selection bit in the PDCCH according to an uplink transmission mode to be configured for the UE 52;
specifically, when the uplink transmission mode to be configured for the UE 52 is mode 1, the mode bit configuration module 511 sets the value of the mode selection bit in the PDCCH to 1; when the uplink transmission mode to be configured for the UE 52 is mode 2, the value of the mode selection bit in the PDCCH is set to 0.
An uplink grant configuration module 512, configured to configure uplink grant information bits in the DCI according to an uplink transmission mode to be configured for the UE 52;
specifically, when the uplink transmission mode to be configured for the UE 52 is mode 1, the uplink grant configuration module 512 configures an individual 5-bit MCS-RV bit and 1-bit NDI bit for each codeword; when the uplink transmission mode to be configured for the UE 52 is mode 2, configuring a single 5-bit MCS-RV bit for each codeword, but configuring only the 1-bit NDI bit of the first codeword for the two codewords, and the NDI bit of the second codeword is null;
an ACK/NACK configuration module 513, configured to configure ACK/NACK bits in the PHICH according to an uplink transmission mode to be configured for the UE 52;
specifically, when the uplink transmission mode to be configured for the UE 52 is mode 1, the ACK/NACK configuration module 513 configures an individual 1-bit ACK/NACK bit for each codeword in the PHICH; when the uplink transmission mode to be configured for the UE 52 is mode 2, only 1bit ACK/NACK bits are configured in the PHICH and are shared by two codewords.
A DCI sending module 514, configured to combine the 1-bit mode selection bit of the mode bit configuration module 511 and the 12-bit uplink authorization information bit of the uplink authorization configuration module 512 into a DCI sending format, as shown in fig. 6, and send the DCI sending format to the UE 52;
an ACK/NACK transmitting module 515, configured to transmit information of the ACK/NACK bits configured by the ACK/NACK configuring module 513 to the UE 52;
the UE 52 further includes: a receiving module 521, a decoding module 522, a first configuration module 523, and a second configuration module 524;
a receiving module 521, configured to receive DCI and information of ACK/NACK bits sent by eNode B51;
a decoding module 522, configured to decode the DCI received by the receiving module 521;
a first configuration module 523, configured to configure an uplink transmission mode according to the uplink authorization information of the DCI according to the value of the mode selection bit of the DCI analyzed by the decoding module 522;
specifically, when the value of the mode selection bit of the DCI analyzed by the decoding module 522 is 1, the first configuration module 523 indicates that the uplink transmission mode is mode 1, and without spatial packing and layer switching, the uplink transmission mode is configured according to the information of the 5-bit MCS-RV bit and the information of the 1-bit NDI bit of each codeword, respectively; when the value of the mode selection bit of the analyzed DCI is 0, the uplink transmission mode is indicated to be mode 2, HARQ-ACK space packing of band layer exchange is adopted, the uplink transmission mode is configured according to the information of 5bits MCS-RV bits of each code word, and the uplink transmission mode is configured according to the information of 1bit NDI bits shared by two code words.
A second configuration module 524, configured to configure the uplink transmission mode according to the ACK/NACK bit information received by the receiving module 521, according to the value of the mode selection bit of the DCI analyzed by the decoding module;
specifically, when the value of the mode selection bit of the DCI analyzed by the decoding module 522 is 1, the second configuration module 524 indicates that the uplink transmission mode is mode 1, and does not adopt space packing and layer switching, and configures the uplink transmission mode according to the information of the 1-bit ACK/NACK bit of each codeword received by the receiving module 521; when the value of the mode selection bit of the parsed DCI is 0, it indicates that the uplink transmission mode is mode 2, and HARQ-ACK spatial packing with layer switching is adopted, and the uplink transmission mode is configured according to the information of the 1-bit ACK/NACK bit shared by the two codewords received by the receiving module 521.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalents, improvements, etc. that are within the spirit and principle of the present invention should be included in the present invention.
Claims (11)
1. A method for transmitting downlink control signaling is characterized in that the method comprises the following steps:
an evolution base station eNode B sets a mode selection bit in a packet dedicated control channel PDCCH, and forms a downlink control signaling DCI transmission format by the mode selection bit and an uplink authorization information bit and sends the downlink control signaling DCI transmission format to user equipment UE;
and the UE configures an uplink transmitting mode according to the value of the mode selection bit in the analyzed DCI and the information of the uplink authorization information bit and the information of the acknowledgement/non-acknowledgement ACK/NACK bit of the DCI.
2. The transmission method according to claim 1, wherein the eNode B sets mode selection bits in the PDCCH specifically as follows: the eNode B assigns a mode selection bit according to an uplink transmission mode to be configured for the UE;
setting the value of the mode selection bit to be 1 when the uplink transmission mode to be configured for the UE is mode 1; and when the uplink transmission mode to be configured for the UE is the mode 2, setting the value of the mode selection bit to be 0.
3. The transmission method according to claim 1 or 2, wherein before sending the DCI to the UE, the eNode B configures an uplink grant information bit in the DCI and an ACK/NACK bit in a retransmission indication channel PHICH; wherein, the uplink authorization information bit includes: the modulation-coded redundancy version MCS-RV bit of 5bits of each code word and the new data indication NDI bit of 1bit, and the two code words are 12bits in total.
4. The transmission method according to claim 3, wherein the configuring the uplink grant information bit in the DCI and the ACK/NACK bit in the PHICH specifically includes:
when the uplink transmission mode to be configured for the UE is a mode 1, configuring an independent MCS-RV bit with 5bits and an independent NDI bit with 1bit for each code word, and configuring an independent ACK/NACK bit with 1bit for each code word;
when the uplink transmission mode to be configured for the UE is a mode 2, each code word is configured with an independent MCS-RV bit of 5bits, and only a 1-bit NDI bit and a 1-bit ACK/NACK bit of the first code word are configured and shared by the two code words, and the NDI bit of the second code word is empty.
5. The transmission method according to claim 1 or 2, wherein the information of the ACK/NACK bit is transmitted to the UE while the DCI is transmitted to the UE.
6. The transmission method according to claim 1 or 2, wherein the DCI transmitted to the UE includes: a mode select bit, a first codeword and a second codeword; wherein,
the highest bit is a mode selection bit, and the value is 1 or 0;
among the rest bits, the upper 6 bits are the 5bits MCS-RV bit and the 1bit NDI bit of the first code word; when the mode selection bit is 0, the NDI bit is shared by two code words; the lower 6 bits are the 5bits MCS-RV bit and the 1bit NDI bit of the second code word; when the mode select bit is 0, the NDI bit is null.
7. The transmission method according to claim 2, wherein the configuring the uplink transmission mode according to the information of the uplink grant information bit and the information of the ACK/NACK bit of the DCI specifically includes:
when the value of the mode selection bit in the analyzed DCI is 1, configuring an uplink transmission mode according to the information of the 5-bit sMCS-RV bit, the 1-bit NDI bit and the 1-bit ACK/NACK bit of each code word respectively;
when the value of the mode selection bit in the analyzed DCI is 0, configuring an uplink transmission mode according to the information of the 5-bit sMCS-RV bit of each code word, and configuring the uplink transmission mode according to the information of the 1-bit NDI bit shared by the two code words and the information of the 1-bit ACK/NACK bit shared by the two code words.
8. A system for transmitting downlink control signaling, the system comprising:
the eNode B is used for setting a mode selection bit in the PDCCH, and forming a DCI transmission format by the mode selection bit and the uplink authorization information bit and sending the DCI transmission format to the UE;
and the UE is used for receiving the DCI, decoding the DCI according to the transmitting format of the DCI, and configuring an uplink transmitting mode according to the information of the uplink authorization information bit and the information of the ACK/NACK bit according to the value of the mode selection bit in the analyzed DCI.
9. The transmission system of claim 8, wherein the eNode B is further configured to configure uplink grant information bits in DCI and ACK/NACK bits in PHICH according to an uplink transmission mode to be configured for the UE; the UE is also used for sending the information of the ACK/NACK bit to the UE at the same time of sending the DCI;
the UE is further configured to receive information of ACK/NACK bits.
10. The transmission system according to claim 8 or 9, wherein the eNode B further comprises:
a mode bit configuration module, configured to define 1bit in the PDCCH as a mode selection bit for configuration according to an uplink transmission mode to be configured for the UE;
an uplink authorization configuration module, configured to configure uplink authorization information bits in the DCI;
the ACK/NACK configuration module is used for configuring ACK/NACK bits in the PHICH;
the DCI sending module is used for forming a DCI transmitting format by the 1bit mode selection bit of the mode bit configuration module and the 12bits uplink authorization information bit of the uplink authorization configuration module and transmitting the DCI transmitting format to the UE;
and the ACK/NACK sending module is used for sending the information of the ACK/NACK position configured by the ACK/NACK configuration module to the UE.
11. The transmission system according to claim 10, wherein the UE further comprises:
a receiving module, configured to receive DCI and ACK/NACK bit information sent by an eNode B;
a decoding module, configured to decode the DCI received by the receiving module;
the first configuration module is used for configuring an uplink transmission mode according to the uplink authorization information of the DCI according to the value of the mode selection bit of the DCI analyzed by the decoding module;
and the second configuration module is used for configuring the uplink transmission mode according to the ACK/NACK bit information received by the receiving module according to the value of the mode selection bit of the DCI analyzed by the decoding module.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013139207A1 (en) * | 2012-03-19 | 2013-09-26 | 电信科学技术研究院 | Downlink control signalling transmission method and device |
| CN103326806B (en) * | 2012-03-19 | 2016-08-03 | 电信科学技术研究院 | The transmission method of a kind of descending control signaling and device |
| US9571236B2 (en) | 2012-03-19 | 2017-02-14 | China Academy Of Telecommunications Technology | Downlink control signalling transmission method and device |
| CN106537979A (en) * | 2014-07-31 | 2017-03-22 | 华为技术有限公司 | System and method for multiple carrier transmission |
| CN113630882A (en) * | 2016-03-02 | 2021-11-09 | 三星电子株式会社 | Method and apparatus for uplink channel access in wireless communication system |
| US12389419B2 (en) | 2016-03-02 | 2025-08-12 | Samsung Electronics Co., Ltd | Method and apparatus for uplink channel accessing wireless communication system |
| WO2018113589A1 (en) * | 2016-12-21 | 2018-06-28 | Jrd Communication (Shenzhen) Ltd | Ack/nack bundling in wireless communication systems |
| CN110140312A (en) * | 2017-01-07 | 2019-08-16 | Lg 电子株式会社 | The method of terminal retransmission data in wireless communication system and the communication equipment for using this method |
| CN110140312B (en) * | 2017-01-07 | 2022-01-11 | Lg 电子株式会社 | Method for retransmitting data by terminal in wireless communication system and communication apparatus using the same |
| US11283551B2 (en) | 2017-01-07 | 2022-03-22 | Lg Electronics Inc. | Method for terminal resending data in wireless communication system, and communication device using same |
| US11539469B2 (en) | 2017-01-07 | 2022-12-27 | Lg Electronics Inc. | Method for terminal resending data in wireless communication system, and communication device using same |
| US11962415B2 (en) | 2017-01-07 | 2024-04-16 | Lg Electronics Inc. | Method for terminal resending data in wireless communication system, and communication device using same |
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