Method and device for transmitting uplink control information on physical uplink shared control channel (PUSCH)

Abstract

The invention discloses a method and a device for transmitting uplink control information (UCI) on a physical uplink shared control channel (PUSCH). The method and the device are used for ensuring transmission performance of the UCI and avoiding waste of resources for transmitting the UCI on the PUSCH. The method for transmitting the UCI comprises the following steps that: user equipment (UE) determines a resource offset parameter corresponding to the UCI according to the feedback bit number of the current UCI to be transmitted; and the UE determines the transmission resource of the UCI on the PUSCH according to the resource offset parameter corresponding to the UCI, and transmits the UCI according to the transmission resource.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for transmitting uplink control information on a Physical Uplink Shared Control Channel (PUSCH). Background technique [0002] For the long-term evolution multi-carrier system, in order to support a wider system bandwidth than the LTE system, such as 100MHz, one possibility is to directly allocate spectrum with a bandwidth of 100M, such as figure 1 shown. Another possibility is to aggregate some frequency spectrum allocated to the existing system to form a large bandwidth for the long-term evolution multi-carrier system. At this time, the uplink and downlink carriers in the system can be configured asymmetrically, that is, users may occupy N (N≥ 1) Carriers are used for downlink transmission, and M (M≥1) carriers are occupied for uplink transmission. N is not equal to M, such as figure 2 shown. [0003] The LTE-A system is currently determin...

AI Technical Summary

Problems solved by technology

[0032] To sum up, in the prior art, in the LTE-A system, the number of feedback bits of ACK / NACK information and RI information may be different in different uplink subframes, so the two kinds of UCI information are in different uplink subframes in different uplink subframes. Different encoding methods may be used for PUSCH transmission, if the same resource offset parameter is used Since the coding gains of different coding methods are different, that is, the transmission performance is different, it may cause differences in the UCI performance of different uplink subframe transmissions. If the resource offset parameter It needs to be set according to the maximum needs (that is, set according to the resource size required by the smaller coding gain of Dual-RM), so that although the transmission performance of UCI can be guaranteed not to degrade under the small coding gain, when the number of UCI bits is small ( That is, when repetition or RM coding is used, when the coding gain is large), the resource size required for UCI transmission is smaller than that according to the Calculated resource size, resulting in waste of resources used to transmit UCI on PUSCH; or, if the resource offset parameter It needs to be set according to the minimum requirement (that is, set according to the resource size required by the coding gain with a large RM). Although it can ensure that UCI resources are not wasted when transmitting small bits, when the number of UCI transmission bits is large (that is, using Dual -RM coding, when the coding gain is small), according to the The resources determined by the parameters are not enough to meet the UCI transmission performance, resulting in the degradation of UCI transmission performance on PUSCH

Images