CN103138896A - Method and device for transmitting response message - Google Patents

Abstract

The present invention discloses a response information transmission method and device, wherein the method includes: determining the number of carriers configured by the UE; when the number of carriers of the UE is greater than a predetermined threshold, configuring the UE for the UE according to the carrier type and the accompanying information transmission state The PUCCH resource for transmitting response information, wherein the accompanying information transmission status is used to indicate whether the PDSCH of the main carrier is accompanied by PDCCH information transmission; the configured PUCCH resource is used to transmit the response information. The present invention solves the problem in the prior art that the UE needs to feed back a large amount of ACK/NACK information due to carrier aggregation, and effectively suppresses unnecessary downlink data retransmission while effectively transmitting and feeding back ACK/NACK information, thereby improving the Validity and reliability of ACK/NACK information transmission.

Description

Response information transmission method and device

technical field

The present invention relates to the communication field, in particular, to a method and device for transmitting response information.

Background technique

With the rapid development of the Long Term Evolution (referred to as LTE) system, 3GPP has gradually carried out research work on LTE-Advanced related technologies. Compared with the LTE system, the LTE-Advanced system has greatly improved in terms of key technologies, and successively introduced carrier aggregation technology (CA), relay (Relay) technology, Comp technology, enhanced multi-antenna technology and uplink multi-antenna technology and other technologies.

However, the reason why the carrier aggregation technology is proposed is that in terms of system bandwidth, LTE-Advanced needs to support higher uplink and downlink transmission rates, and the downlink needs to support a data transmission rate of 1Gbps, so the bandwidth needs to reach 100MHz to meet the requirements of uplink and downlink transmission rates. Requirements, and LTE-Advanced requires compatibility with LTE, so the carrier aggregation technology is proposed.

The maximum bandwidth of each carrier is 20MHz, and carrier aggregation can be aggregated on continuous carriers or non-continuous carriers. Under carrier aggregation, the maximum number of component carriers designed by LTE-Advanced is 5. The bandwidth requirement of 100 MHz can be realized by carrier aggregation of 5 carriers. However, carrier aggregation will cause a problem. For a UE, the number of bits of correct/error (Acknowledgment/Negative Acknowledgment, ACK/NACK for short) information fed back on the uplink control channel will be large. Therefore, in the case of limited UE power, the UE may not be able to send much ACK/NACK information. At present, the LTE-Advanced system provides ACK/NACK feedback methods for single-carrier and 2-carrier ACKs, but there is no mention of ACK/NACK feedback methods for more than 2 carriers. Therefore, for the case where the number of carriers is greater than 2, the UE needs to feed back a large amount of ACK/NACK information.

For the above-mentioned problems in the prior art, no effective solution has been proposed yet.

Contents of the invention

The present invention provides a response information transmission method and device to at least solve the technical problem in the prior art that UE needs to feed back a large amount of ACK/NACK information due to carrier aggregation.

According to one aspect of the present invention, a method for transmitting response information is provided, including: determining the number of carriers configured by the UE; when the number of carriers of the UE is greater than a predetermined threshold, configuring the UE for transmission according to the carrier type and accompanying information transmission status The PUCCH resource of the response information, wherein the accompanying information transmission status is used to indicate whether the PDSCH of the main carrier is accompanied by PDCCH information transmission; the configured PUCCH resource is used to transmit the response information.

Preferably, the step of configuring PUCCH resources for transmitting response information for the UE according to the carrier type and accompanying information transmission status includes: for a carrier whose carrier type is the main carrier, determine the PUCCH resources for transmitting response information according to the accompanying information transmission status ; For a carrier whose carrier type is a secondary carrier, determine the PUCCH resource indicated by the TPC field in the DCI information of the data service on the secondary carrier as the PUCCH resource used to transmit the response information.

确定为用于传输响应信息的PUCCH资源，其中，n_CCE，0是与主载波上下行业务相关的PDCCH的第1个CCE的编号；

用于表示PUCCH资源在频域上的偏移量；当伴随信息传输状态指示主载波的PDSCH没有伴随PDCCH信息传输时，将主载波上数据业务的DCI信息中的TPC字段指示的PUCCH资源确定为用于传输响应信息的PUCCH资源。Preferably, the step of determining the PUCCH resources used to transmit the response information according to the transmission status of the accompanying information includes: when the transmission status of the accompanying information indicates that the PDSCH of the main carrier is accompanied by PDCCH information transmission, the

Determined as a PUCCH resource for transmitting response information, wherein, n _{CCE, 0} is the number of the first CCE of the PDCCH related to the main carrier uplink and downlink services;

Used to indicate the offset of the PUCCH resource in the frequency domain; when the accompanying information transmission status indicates that the PDSCH of the main carrier is not accompanied by PDCCH information transmission, the PUCCH resource indicated by the TPC field in the DCI information of the data service on the main carrier is determined as PUCCH resources used to transmit response information.

Preferably, the sequence number of the PUCCH resource indicated by the TPC field in the DCI information of the data service on the secondary carrier corresponds to the sequence number of the secondary carrier.

Preferably, the predetermined threshold is 2.

Preferably, the step of using the configured PUCCH resources to transmit the response information includes: determining the 2-bit information when using the PUCCH1b format for transmission according to the configured PUCCH resources and/or the response information; and transmitting the response message to the base station according to the PUCCH1b format.

According to another aspect of the present invention, an apparatus for transmitting response information is provided, including: a determination unit, configured to determine the number of carriers configured by the UE; a configuration unit, configured to, when the number of carriers of the UE is greater than a predetermined threshold, according to the carrier type and accompanying information transmission state configures PUCCH resources for the UE to transmit response information, wherein the accompanying information transmission state is used to indicate whether the PDSCH of the main carrier is accompanied by PDCCH information transmission; the transmission unit is used to use the configured PUCCH resources to transmit the response information.

Preferably, the configuration unit includes: a first configuration module, used to determine the PUCCH resources used to transmit response information according to the accompanying information transmission status when the carrier type of the carrier is the main carrier; When the carrier type is a secondary carrier, determine the PUCCH resource indicated by the TPC field in the DCI information of the data service on the secondary carrier as the PUCCH resource used to transmit the response information.

Preferably, the predetermined threshold is 2.

Preferably, the transmission unit includes: a determination module, configured to determine 2-bit information when using the PUCCH1b format for transmission according to the configured PUCCH resources and/or response information; a transmission module, configured to transmit the response message to the base station according to the PUCCH1b format.

In the present invention, when the number of carriers of the UE is greater than a predetermined threshold (for example, greater than 2), PUCCH resources for transmitting the response message are configured for each carrier, thereby realizing the transmission of the response message. The above method solves the problem in the prior art that the UE needs to feed back a large amount of ACK/NACK information due to carrier aggregation, and achieves effective transmission of feedback ACK/NACK information while effectively suppressing unnecessary downlink data retransmission and improving The validity and reliability of ACK/NACK information transmission are improved.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:

Fig. 1 is a kind of preferred structural block diagram of the transmission device of response message according to the present invention;

Fig. 2 is another preferred structural block diagram of the transmission device of the response message according to the present invention;

Fig. 3 is another preferred structural block diagram of the transmission device of the response message according to the present invention;

Fig. 4 is a kind of preferred flowchart of the transmission method of response message according to the present invention;

Fig. 5 is another preferred flow chart of the response message transmission method according to the present invention.

Detailed ways

Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

Example 1

As shown in FIG. 1 , the present invention provides a preferred response information transmission device 100, which includes: a determination unit 102, configured to determine the number of carriers configured by the UE; a configuration unit 104, used to configure when the number of carriers of the UE is greater than When the threshold is predetermined, configure a Physical Uplink Control Channel (PUCCH for short) resource for the UE to transmit response information according to the carrier type and accompanying information transmission status, where the accompanying information transmission status is used to indicate the physical downlink of the main carrier Whether the shared channel (Physical Downlink Shared Channel, referred to as PDSCH) is accompanied by physical downlink control channel (Physical Downlink Control Channel, referred to as PDCCH) information transmission; the transmission unit 106 is used to use the configured PUCCH resources to transmit response information.

In the above preferred implementation manner, when the number of carriers of the UE is greater than a predetermined threshold (for example, greater than 2), PUCCH resources for transmitting the response message are configured for each carrier, thereby realizing the transmission of the response message. The above method solves the problem in the prior art that the UE needs to feed back a large amount of ACK/NACK information due to carrier aggregation, and achieves effective transmission of feedback ACK/NACK information while effectively suppressing unnecessary downlink data retransmission and improving The validity and reliability of ACK/NACK information transmission are improved.

The present invention also provides a preferred configuration unit 104 to configure different PUCCH resources for different types of carriers. As shown in Figure 2, the preferred configuration unit 104 includes: a first configuration module 202, configured to determine the PUCCH resource used to transmit the response information according to the accompanying information transmission status when the carrier type of the carrier is the primary carrier; The configuration module 204 is configured to, when the carrier type of the carrier is a secondary carrier, determine the PUCCH resource indicated by the TPC field in the DCI information of the data service on the secondary carrier as the PUCCH resource used to transmit the response information. In the preferred implementation manner above, different PUCCH resources for transmitting ACK/NACK are obtained through the main carrier and the secondary carrier, so as to achieve the purpose of using the PUCCH resources more efficiently and reasonably to transmit ACK/NACK.

确定为用于传输响应信息的PUCCH资源，其中，

n_CCE，0是与主载波上下行业务相关的PDCCH的第1个CCE的编号；

用于表示PUCCH资源在频域上的偏移量；当伴随信息传输状态指示主载波的PDSCH没有伴随PDCCH信息传输时，将主载波上数据业务的DCI信息中的TPC字段指示的PUCCH资源确定为用于传输响应信息的PUCCH资源。The present invention also provides a preferred first configuration module 202, so as to adopt different configuration methods for main carriers in different situations, so as to realize reasonable configuration of PUCCH resources. In this preferred embodiment, the step of the first configuration module 202 determining the PUCCH resources used to transmit the response information according to the accompanying information transmission status includes: when the accompanying information transmission status indicates that the PDSCH of the main carrier is accompanied by PDCCH information transmission, the

Determined as a PUCCH resource for transmitting response information, wherein,

n _{CCE, 0} is the number of the first CCE of the PDCCH related to the main carrier uplink and downlink services;

Used to indicate the offset of the PUCCH resource in the frequency domain; when the accompanying information transmission status indicates that the PDSCH of the main carrier is not accompanied by PDCCH information transmission, the PUCCH resource indicated by the TPC field in the DCI information of the data service on the main carrier is determined as PUCCH resources used to transmit response information.

In a preferred embodiment of the present invention, the sequence number of the PUCCH resource indicated by the TPC field in the DCI information of the data service on the secondary carrier corresponds to the sequence number of the secondary carrier.

In a preferred embodiment of the present invention, the predetermined threshold is 2. Through this preferred embodiment, the feedback of ACK/NACK information with the number of carriers greater than 2 is realized, and unnecessary downlink data retransmission can be effectively suppressed while the feedback ACK/NACK information is effectively transmitted.

In a preferred embodiment of the present invention, as shown in FIG. 3, the transmission unit 106 includes: a determination module 302, which is used to determine the 2-bit information when using the PUCCH1b format for transmission according to the configured PUCCH resources and/or response information; the transmission module 304, configured to transmit the response message to the base station according to the PUCCH1b format. In this preferred embodiment, the response message is transmitted in the PUCCH1b format determined according to the configured PUCCH resources, which improves the effectiveness and reliability of ACK/NACK information transmission.

Example 2

Based on the preferred response information transmission device shown in Figures 1-3, the present invention also provides a preferred response information transmission method, as shown in Figure 4, the specific steps of the method include:

S402: Determine the number of carriers configured by the UE;

S404: When the number of carriers of the UE is greater than the predetermined threshold, configure a physical uplink control channel PUCCH resource for the UE to transmit response information according to the carrier type and accompanying information transmission status, wherein the accompanying information transmission status is used to indicate the physical downlink of the main carrier Whether the shared channel PDSCH is accompanied by physical downlink control channel PDCCH information transmission;

S406: Use the configured PUCCH resources to transmit response information.

In the above preferred implementation manner, when the number of carriers of the UE is greater than a predetermined threshold (for example, greater than 2), PUCCH resources for transmitting the response message are configured for each carrier, thereby realizing the transmission of the response message. The above method solves the problem in the prior art that the UE needs to feed back a large amount of ACK/NACK information due to carrier aggregation, and achieves effective transmission of feedback ACK/NACK information while effectively suppressing unnecessary downlink data retransmission and improving The validity and reliability of ACK/NACK information transmission are improved.

The present invention also provides a preferred PUCCH resource configuration method for transmitting response information, so as to configure different PUCCH resources for different types of carriers. In this preferred embodiment, the step of configuring a PUCCH resource for the UE to transmit response information according to the carrier type and accompanying information transmission status includes: for the primary carrier indicated by the carrier type, determine the PUCCH resource used for transmitting the response according to the accompanying information transmission status The PUCCH resource of the information; for the secondary carrier indicated by the carrier type, determine the PUCCH resource indicated by the TPC field in the DCI information of the data service on the secondary carrier as the PUCCH resource used to transmit the response information. In the above preferred implementation manners, the purpose of more efficient and reasonable allocation of PUCCH resources is achieved by adopting different configuration modes for the main carrier and the sub-carriers.

确定为用于传输响应信息的PUCCH资源，其中，

n_CCE，0是与主载波上下行业务相关的PDCCH的第1个CCE的编号；

用于表示PUCCH资源在频域上的偏移量；当伴随信息传输状态指示主载波的PDSCH没有伴随PDCCH信息传输时，将主载波上数据业务的DCI信息中的TPC字段指示的PUCCH资源确定为用于传输响应信息的PUCCH资源。在上述优选实施方式中，根据判断主载波的PDSCH是否伴随有PDCCH信息传输而采用不同的PUCCH资源的配置方法提高了ACK/NACK信息传输的有效性和可信度。The present invention also provides a preferred method for configuring PUCCH resources of the main carrier, so as to implement different configuration methods for main carriers in different situations, thereby realizing reasonable configuration of PUCCH resources. In this preferred embodiment, the step of determining the PUCCH resources used to transmit the response information according to the transmission status of the accompanying information includes: when the transmission status of the accompanying information indicates that the PDSCH of the main carrier is accompanied by PDCCH information transmission, the

Determined as a PUCCH resource for transmitting response information, wherein,

n _{CCE, 0} is the number of the first CCE of the PDCCH related to the main carrier uplink and downlink services;

Used to indicate the offset of the PUCCH resource in the frequency domain; when the accompanying information transmission status indicates that the PDSCH of the main carrier is not accompanied by PDCCH information transmission, the PUCCH resource indicated by the TPC field in the DCI information of the data service on the main carrier is determined as PUCCH resources used to transmit response information. In the above preferred implementation manners, different PUCCH resource configuration methods are used according to judging whether the PDSCH of the main carrier is accompanied by PDCCH information transmission, which improves the effectiveness and reliability of ACK/NACK information transmission.

In a preferred embodiment of the present invention, the sequence number of the PUCCH resource indicated by the TPC field in the DCI information of the data service on the secondary carrier corresponds to the sequence number of the secondary carrier.

In a preferred embodiment of the present invention, the predetermined threshold is 2. Through this preferred embodiment, the feedback of ACK/NACK information with the number of carriers greater than 2 is realized, and unnecessary downlink data retransmission can be effectively suppressed while the feedback ACK/NACK information is effectively transmitted.

In a preferred embodiment of the present invention, the step of using the configured PUCCH resources to transmit the response information includes: determining the 2-bit information when using the PUCCH1b format for transmission according to the configured PUCCH resources and/or the response information; transmitting the response message according to the PUCCH1b format to the base station. In this preferred embodiment, the response message is transmitted in the PUCCH1b format determined according to the configured PUCCH resources, which improves the effectiveness and reliability of ACK/NACK information transmission.

Example 3

The present invention also provides another preferred response message transmission method, as shown in Figure 5, the specific steps include (S502-S512):

S502: The base station side determines the number of carriers configured for the UE.

S504: The base station side determines the PUCCH resource, and the specific determination method is:

The PUCCH resource configuration method for the ACK/NACK feedback of the primary component carrier/cell (Primary Component Carrier/Cell, referred to as PCC/PCell) is as follows:

When a PDSCH or downlink SPS release indicated by a Physical Downlink Control Channel (PDCCH) is transmitted in PCC subframe n-4, the corresponding Physical Uplink Control Channel (PUCCH) resource for:

${\mathrm{<span\; class="notranslate">\; no</span>}}_{\mathrm{<span\; class="notranslate">\; PUCCH</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; 0</span>}}^{<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; )</span>}<span\; class="notranslate">\; =</span>{\mathrm{<span\; class="notranslate">\; no</span>}}_{\mathrm{<span\; class="notranslate">\; CCE</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; 0</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; N</span>}}_{\mathrm{<span\; class="notranslate">\; PUCCH</span>}}^{<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; )</span>}$

Wherein, n _{CCE, 0} is the number of the first CCE of the PDCCH related to the uplink and downlink services of the PCC.

根据高层配置来定，具体的，PUCCH资源由触发下行SPS时DCI信息中的TPC命令字指定，其中，TPC的取值为表1中4个值中的1个。When the Physical Downlink Shared Channel (PDSCH) without PDCCH is transmitted in PCC subframe n-4 (SPS service), the PUCCH resource for sending ACK/NACK

It is determined according to the high-level configuration. Specifically, the PUCCH resource is specified by the TPC command word in the DCI information when the downlink SPS is triggered, where the value of the TPC is one of the four values in Table 1.

Table 1

For the secondary component carrier/cell (SCC/SCell for short), the PUCCH resource configuration method for the ACK/NACK feedback of the secondary carrier/cell is as follows: the PUCCH resource for sending ACK/NACK It is determined according to the high-level configuration, where i is the value of i corresponding to the SCC, and the specific corresponding relationship is shown in Table 2. The specific PUCCH resource for feeding back ACK/NACK information is specified by the TPC command word in the DCI information that triggers the data service on the SCC, and this resource information is different from the TPC field in the DCI information that triggers the downlink SPS service in the PCC.

Table 2

Regarding the TPC field information in the DCI information related to the downlink data service in the secondary cell, the TPC field information in the DCI information of all secondary cells is different. The TPC field of each auxiliary cell takes a TPC value in Table 3.

table 3

S506: The UE determines the fed back ACK/NACK information.

S508: The UE finds out the reported bit information and corresponding PUCCH resources according to the number of carriers and ACK/NACK information.

S510: The UE sends corresponding ACK/NACK information to the base station through the PUCCH1b format.

S512: end.

According to the above-mentioned response information transmission device and method, the present invention also provides several more specific implementation modes to further explain and describe the present invention, but this does not constitute an improper limitation of the present invention.

Example 4

This preferred embodiment is based on the fact that the number of carriers configured by the UE is 3, of which the number of main carriers is 1, and the PDSCH transmission on the main carrier carries corresponding PDCCH information, the number of auxiliary carriers is 2, and the number of cells is 1 A situation is described. In this case, the way to configure PUCCH resources is as follows:

The PUCCH resource corresponding to the secondary carrier is:

SCC1: ${\mathrm{no}}_{\mathrm{PUCCH},1}^{\left(1\right)}={\mathrm{no}}_{\mathrm{PUCCH},i}^{\left(1\right)},$ preferred, ${\mathrm{no}}_{\mathrm{PUCCH},1}^{\left(1\right)}={\mathrm{no}}_{\mathrm{PUCCH},i}^{\left(1\right)}$ It is given by the high layer and sent to the UE through the TPC field in the DCI related to SCC1 (secondary carrier 1), where the value of TPC is shown in Table 3, where the value of TPC is "00", indicating that The PUCCH resource is the first resource configured by higher layers.

SCC2: ${\mathrm{no}}_{\mathrm{PUCCH},2}^{\left(1\right)}={\mathrm{no}}_{\mathrm{PUCCH},i}^{\left(1\right)},$ preferred, ${\mathrm{no}}_{\mathrm{PUCCH},2}^{\left(1\right)}={\mathrm{no}}_{\mathrm{PUCCH},i}^{\left(1\right)}$ It is given by the higher layer and sent to the UE through the TPC field in the DCI related to SCC2 (secondary carrier 2), where the value of TPC is shown in Table 3, where the value of TPC is "01", indicating that The PUCCH resource is the second resource configured by higher layers.

The resources corresponding to the main carrier are:

Because the PDSCH transmission on the main carrier carries the corresponding PDCCH information, so

${\mathrm{<span\; class="notranslate">\; no</span>}}_{\mathrm{<span\; class="notranslate">\; PUCCH</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; 0</span>}}^{<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; )</span>}<span\; class="notranslate">\; =</span>{\mathrm{<span\; class="notranslate">\; no</span>}}_{\mathrm{<span\; class="notranslate">\; CCE</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; 0</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; N</span>}}_{\mathrm{<span\; class="notranslate">\; PUCCH</span>}}^{<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; )</span>}$

Wherein, n _{CCE, 0} is the number of the first CCE of the PDCCH related to the uplink and downlink services of the primary carrier (PCC).

After obtaining the PUCCH resource through the above method, preferably, the UE associates the ACK/NACK information on the current carrier with the PUCCH resource according to the number of carriers, and then associates the PUCCH resource with the b(0)b(1) 2-bit information to determine The bit information used to report the ACK/NACK information, and then the UE sends the corresponding ACK/NACK information to the base station through the PUCCH1b format, so as to realize the transmission of the ACK/NACK information using the PUCCH1b format.

Among them, the mapping relationship between the 2-bit information corresponding to the PUCCH1b format and the ACK/NACK corresponding to the PUCCH resources and the downlink data of each carrier is shown in Table 4:

Table 4

Example 5

This preferred embodiment is based on the fact that the number of carriers configured by the UE is 4, of which 1 is the main carrier, and the PDSCH on the main carrier does not transmit the corresponding PDCCH information, the number of auxiliary carriers is 3, and the number of cells is 1 situation is explained. In this case, the way to configure PUCCH resources is as follows:

The PUCCH resource corresponding to the secondary carrier is:

SCC1: ${\mathrm{no}}_{\mathrm{PUCCH},1}^{\left(1\right)}={\mathrm{no}}_{\mathrm{PUCCH},i}^{\left(1\right)},$ preferred, ${\mathrm{no}}_{\mathrm{PUCCH},1}^{\left(1\right)}={\mathrm{no}}_{\mathrm{PUCCH},i}^{\left(1\right)}$ It is given by the high layer and sent to the UE through the TPC field in the DCI related to SCC1 (secondary carrier 1), where the value of TPC is shown in Table 3, where the value of TPC is "00", indicating that The PUCCH resource is the first resource configured by higher layers.

SCC2: ${\mathrm{no}}_{\mathrm{PUCCH},2}^{\left(1\right)}={\mathrm{no}}_{\mathrm{PUCCH},i}^{\left(1\right)},$ preferred, ${\mathrm{no}}_{\mathrm{PUCCH},2}^{\left(1\right)}={\mathrm{no}}_{\mathrm{PUCCH},i}^{\left(1\right)}$ It is given by the higher layer and sent to the UE through the TPC field in the DCI related to SCC2 (secondary carrier 2), where the value of TPC is shown in Table 3, where the value of TPC is "01", indicating that PUCCH The resource is the second resource configured by the high-level.

SCC3: ${\mathrm{no}}_{\mathrm{PUCCH},3}^{\left(1\right)}={\mathrm{no}}_{\mathrm{PUCCH},i}^{\left(1\right)},$ preferred, ${\mathrm{no}}_{\mathrm{PUCCH},3}^{\left(1\right)}={\mathrm{no}}_{\mathrm{PUCCH},i}^{\left(1\right)}$ It is given by the upper layer and sent to the UE through the TPC field in the DCI related to SCC3 (secondary carrier 3), where the value of TPC is shown in Table 3, where the value of TPC is "10", indicating that PUCCH The resource is the third resource configured by the high-level.

The resources corresponding to the main carrier are:

为”00”表明PUCCH资源为高层配置的第1个PUCCH资源，具体如表1所示。Because the PDSCH on the main carrier does not transmit corresponding PDCCH information, the resources corresponding to the main carrier are consistent with the PUCCH resource information represented by the TPC command word in the relevant DCI information on the PCC. Here, assuming TPC=00, then

"00" indicates that the PUCCH resource is the first PUCCH resource configured by higher layers, as shown in Table 1.

After obtaining the PUCCH resource through the above method, preferably, the UE associates the ACK/NACK information on the current carrier with the PUCCH resource according to the number of carriers, and then associates the PUCCH resource with the b(0)b(1) 2-bit information to determine The bit information used to report the ACK/NACK information, and then the UE sends the corresponding ACK/NACK information to the base station through the PUCCH1b format, so as to realize the transmission of the ACK/NACK information using the PUCCH1b format.

Among them, the mapping relationship between the 2-bit information corresponding to the PUCCH1b format and the ACK/NACK corresponding to the PUCCH resource and the downlink data of each carrier is shown in Table 5:

table 5

Example 6

This preferred embodiment is based on the fact that the number of carriers configured by the UE is 5, of which the number of main carriers is 1, and the PDSCH transmission on the main carrier carries corresponding PDCCH information, the number of auxiliary carriers is 4, and the number of cells is 1 A situation is described. In this case, the way to configure PUCCH resources is as follows:

The PUCCH resource corresponding to the secondary carrier is:

SCC1: ${\mathrm{no}}_{\mathrm{PUCCH},1}^{\left(1\right)}={\mathrm{no}}_{\mathrm{PUCCH},i}^{\left(1\right)},$ preferred, ${\mathrm{no}}_{\mathrm{PUCCH},1}^{\left(1\right)}={\mathrm{no}}_{\mathrm{PUCCH},i}^{\left(1\right)}$ It is given by the high layer and sent to the UE through the TPC field in the DCI related to SCC1 (secondary carrier 1), where the value of TPC is shown in Table 3, where the value of TPC is "00", indicating that The PUCCH resource is the first resource configured by higher layers.

SCC2: ${\mathrm{no}}_{\mathrm{PUCCH},2}^{\left(1\right)}={\mathrm{no}}_{\mathrm{PUCCH},i}^{\left(1\right)},$ preferred, ${\mathrm{no}}_{\mathrm{PUCCH},2}^{\left(1\right)}={\mathrm{no}}_{\mathrm{PUCCH},i}^{\left(1\right)}$ It is given by the higher layer and sent to the UE through the TPC field in the DCI related to SCC2 (secondary carrier 2), where the value of TPC is shown in Table 3, where the value of TPC is "01", indicating that The PUCCH resource is the second resource configured by higher layers.

SCC3: ${\mathrm{no}}_{\mathrm{PUCCH},3}^{\left(1\right)}={\mathrm{no}}_{\mathrm{PUCCH},i}^{\left(1\right)},$ preferred, ${\mathrm{no}}_{\mathrm{PUCCH},3}^{\left(1\right)}={\mathrm{no}}_{\mathrm{PUCCH},i}^{\left(1\right)}$ It is given by the higher layer and sent to the UE through the TPC field in the DCI related to SCC3 (secondary carrier 3), where the value of TPC is shown in Table 3, where the value of TPC is "10", indicating that The PUCCH resource is the third resource configured by higher layers.

SCC4: ${\mathrm{no}}_{\mathrm{PUCCH},4}^{\left(1\right)}={\mathrm{no}}_{\mathrm{PUCCH},i}^{\left(1\right)},$ preferred, ${\mathrm{no}}_{\mathrm{PUCCH},4}^{\left(1\right)}={\mathrm{no}}_{\mathrm{PUCCH},i}^{\left(1\right)}$ It is given by the higher layer and sent to the UE through the TPC field in the DCI related to SCC4 (secondary carrier 4), where the value of TPC is shown in Table 3, where the value of TPC is "11", indicating that The PUCCH resource is the fourth resource configured by higher layers.

The resources corresponding to the main carrier are:

The PDSCH transmission on the main carrier carries corresponding PDCCH information, so the resources corresponding to the main carrier are:

Because the PDSCH transmission on the main carrier carries the corresponding PDCCH information, so

${\mathrm{<span\; class="notranslate">\; no</span>}}_{\mathrm{<span\; class="notranslate">\; PUCCH</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; 0</span>}}^{<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; )</span>}<span\; class="notranslate">\; =</span>{\mathrm{<span\; class="notranslate">\; no</span>}}_{\mathrm{<span\; class="notranslate">\; CCE</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; 0</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; N</span>}}_{\mathrm{<span\; class="notranslate">\; PUCCH</span>}}^{<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; )</span>}$

Wherein, n _{CCE, 0} is the number of the first CCE of the PDCCH related to the uplink and downlink services of the primary carrier (PCC).

After obtaining the PUCCH resource through the above method, preferably, the UE associates the ACK/NACK information on the current carrier with the PUCCH resource according to the number of carriers, and then associates the PUCCH resource with the b(0)b(1) 2-bit information to determine The bit information used to report the ACK/NACK information, and then the UE sends the corresponding ACK/NACK information to the base station through the PUCCH1b format, so as to realize the transmission of the ACK/NACK information using the PUCCH1b format.

Among them, the mapping relationship between the 2-bit information corresponding to the PUCCH1b format and the ACK/NACK corresponding to the PUCCH resource and the downlink data of each carrier is shown in Table 6:

Table 6

Through the ACK/NACK feedback method introduced above, it can effectively solve the problem of UE feeding back ACK/NACK to the base station when the number of carriers is greater than 2, so as to well suppress the failure of the ACK/NACK feedback caused by the base station to initiate incorrect The problem of necessary data retransmission effectively improves the throughput of the LTE-Advanced system.

However, it is worth noting that the above preferred embodiment is described based on the transmission of ACK/NACK information as an example, but this does not constitute an improper limitation of the present invention, and the response message may also contain other information besides ACK/NACK information. Information. At the same time, the above table of correspondence between PUCCH resources and ACK/NACK feedback is only for better understanding of the present invention, and the correspondence between PUCCH resources and ACK/NACK feedback is not limited thereto, and does not constitute an improper limitation of the present invention.

Obviously, those skilled in the art should understand that each module or each step of the above-mentioned present invention can be realized by a general-purpose computing device, and they can be concentrated on a single computing device, or distributed in a network formed by multiple computing devices Alternatively, they may be implemented in program code executable by a computing device so that they may be stored in a storage device to be executed by a computing device, and in some cases in an order different from that shown here The steps shown or described are carried out, or they are separately fabricated into individual integrated circuit modules, or multiple modules or steps among them are fabricated into a single integrated circuit module for implementation. As such, the present invention is not limited to any specific combination of hardware and software.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. the transmission method of a response message, is characterized in that, comprising:

Determine the carrier number of UE configuration;

When the carrier number of described UE during greater than predetermined threshold, be the Physical Uplink Control Channel PUCCH resource that described UE configuration is used for transmission response information according to carrier type and accompanying information transmission state, wherein, whether the described accompanying information transmission state Physical Downlink Shared Channel PDSCH that is used to indicate main carrier is attended by the physical downlink control channel PDCCH communication;

PUCCH resource with configuration is transmitted described response message.

2. method according to claim 1, is characterized in that, is that the step that described UE configuration is used for the PUCCH resource of transmission response information comprises according to carrier type and accompanying information transmission state:

Be the carrier wave of main carrier for carrier type, be identified for transmitting the PUCCH resource of described response message according to described accompanying information transmission state;

Be the carrier wave of auxiliary carrier wave for carrier type, the PUCCH resource that the TPC field in the DCI information of data service on this auxiliary carrier wave is indicated is defined as be used to the PUCCH resource of transmitting described response message.

3. method according to claim 2, is characterized in that, the step that is identified for transmitting the PUCCH resource of described response message according to described accompanying information transmission state comprises:

When the PDSCH of the described main carrier of described accompanying information transmission state indication is attended by the PDCCH communication, will

Be defined as be used to the PUCCH resource of transmitting described response message, wherein, $n_{\mathrm{PUCCH},0}^{\left(1\right)}=n_{\mathrm{CCE},0}+N_{\mathrm{PUCCH}}^{\left(1\right)},$

Described n _{CCE, 0}It is the numbering with the 1st CCE of the PDCCH of described main carrier up-downgoing traffic aided; Be used for the side-play amount of expression PUCCH resource on frequency domain;

When the PDSCH of the described main carrier of described accompanying information transmission state indication does not follow the PDCCH communication, the PUCCH resource of the indication of the TPC field in the DCI information of data service on described main carrier is defined as PUCCH resource for transmission response information.

4. method according to claim 2, is characterized in that, the sequence number of the PUCCH resource of the TPC field indication on described this auxiliary carrier wave in the DCI information of data service is corresponding with the sequence number of described this auxiliary carrier wave.

5. the described method of any one according to claim 1 to 4, is characterized in that, described predetermined threshold is 2.

6. method according to claim 1, is characterized in that, the step of transmitting described response message with the PUCCH resource of configuration comprises:

2 bit informations when determining to adopt the transmission of PUCCH1b form according to the PUCCH resource of described configuration and/or described response message;

According to described PUCCH1b form, described response message is transferred to the base station.

7. the transmitting device of a response message, is characterized in that, comprising:

Determining unit is used for the carrier number of determining that UE configures;

Dispensing unit, when being used for carrier number as described UE greater than predetermined threshold, be the PUCCH resource that described UE configuration is used for transmission response information according to carrier type and accompanying information transmission state, wherein, whether the described accompanying information transmission state PDSCH that is used to indicate main carrier is attended by the PDCCH communication;

Transmission unit is used for transmitting described response message with the PUCCH resource of configuration.

8. device according to claim 7, is characterized in that, described dispensing unit comprises:

The first configuration module is used for being identified for transmitting the PUCCH resource of described response message according to described accompanying information transmission state when the carrier type of described carrier wave is main carrier;

The second configuration module is used for when the carrier type of described carrier wave is auxiliary carrier wave, and the PUCCH resource that the TPC field in the DCI information of data service on this auxiliary carrier wave is indicated is defined as be used to the PUCCH resource of transmitting described response message.

9. according to claim 7 or 8 described devices, is characterized in that, described predetermined threshold is 2.

10. device according to claim 7, is characterized in that, described transmission unit comprises:

Determination module, 2 bit informations when being used for determining to adopt the transmission of PUCCH1b form according to the PUCCH resource of described configuration and/or described response message;

Transport module is used for according to described PUCCH1b form, described response message being transferred to the base station.

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