Search

EP-4274147-B1 - TIME DOMAIN RESOURCE DETERMINATION METHOD, APPARATUS AND STORAGE MEDIUM

EP4274147B1EP 4274147 B1EP4274147 B1EP 4274147B1EP-4274147-B1

Inventors

  • LIU, XING
  • HAO, PENG
  • LIANG, Yachao
  • BI, FENG

Dates

Publication Date
20260506
Application Date
20190404

Claims (8)

  1. A wireless communication method for a terminal, the method comprising detecting downlink control information of a channel signal in one or more slots within a monitoring window corresponding to the channel signal, characterized by detecting the downlink control information of the channel signal in one or more slots within the monitoring window corresponding to the channel signal comprises: detecting the downlink control information of the channel signal and incorrectly detecting the channel signal in a slot within the monitoring window, and detecting the downlink control information of the channel signal in other slots within the monitoring window.
  2. The wireless communication method of claim 1, further comprising: determining, in response to a reception of a synchronization signal/broadcast channel signal block, SSB, a location of the monitoring window that corresponds to the SSB and carries the channel signal, wherein the channel signal has a quasi-co-location, QCL, relationship with the SSB.
  3. The wireless communication method of claim 1 or 2, wherein the channel signal comprises at least one of a physical downlink shared channel, PDSCH, carrying remaining minimum system information, RMSI, a PDSCH carrying paging information, a PDSCH carrying other system information, OSI, a PDSCH carrying random access response information, a PDSCH carrying random access collision resolution information, a PDSCH carrying MSG2, or a PDSCH carrying MSG4.
  4. The wireless communication method of any one of claims 1 to 3, wherein the channel signal comprises RMSI, wherein detecting the downlink control information of the channel signal in one or more slots within the monitoring window corresponding to the channel signal comprises: detecting the downlink control information of the RMSI and the RMSI in a slot within the monitoring window, performing a preamble transmission according to a random access configuration in the RMSI, incorrectly detecting random access response information, and detecting the downlink control information of the channel signal in other slots within the monitoring window.
  5. A terminal, comprising: a detecting module, configured to detect downlink control information of a channel signal in one or more slots within a monitoring window corresponding to the channel signal, characterized in that the detecting module is configured to detect the downlink control information of the channel signal in one or more slots within the monitoring window corresponding to the channel signal by: detecting the downlink control information of the channel signal and incorrectly detecting the channel signal in a slot within the monitoring window, and detecting the downlink control information of the channel signal in other slots within the monitoring window.
  6. The terminal of claim 5, further comprising: a determining module, configured to determine, in response to a reception of a synchronization signal/broadcast channel signal block, SSB, a location of the monitoring window that corresponds to the SSB and carries the channel signal, wherein the channel signal has a quasi-co-location, QCL, relationship with the SSB.
  7. The terminal of claim 5 or 6, wherein the channel signal comprises at least one of a physical downlink shared channel, PDSCH, carrying remaining minimum system information, RMSI, a PDSCH carrying paging information, a PDSCH carrying other system information, OSI, a PDSCH carrying random access response information, a PDSCH carrying random access collision resolution information, a PDSCH carrying a message 2, MSG2, or a PDSCH a carrying message 4, MSG4.
  8. The terminal of any one of claims 5 to 7, wherein the channel signal comprises RMSI, wherein the detecting module is configured to detect the downlink control information of the channel signal in one or more slots within the monitoring window corresponding to the channel signal by: detecting the downlink control information of the RMSI and the RMSI in a slot within the monitoring window, performing a preamble transmission according to a random access configuration in the RMSI, incorrectly detecting random access response information, and detecting the downlink control information of the channel signal in other slots within the monitoring window.

Description

TECHNICAL FIELD The present application relates to a wireless communication method for a terminal and to the corresponding terminal. BACKGROUND In the related art, communications are performed by a carrier frequency, such as 28 gigahertz (GHz) or 45 GHz, that is higher than a carrier frequency used in a 4th generation mobile communication system (4G). This high-frequency channel has disadvantages of large free propagation loss, easy absorption by oxygen, and great impact by rain attenuation, which seriously affect the coverage performance of a high-frequency communication system. To ensure that a high-frequency communication and a long term evolution (LTE) system have similar signal to interference plus noise ratio (SINR) within a coverage range, it is necessary to ensure antenna gains of the high-frequency communication. A carrier frequency of the high frequency communication has a shorter wavelength, ensuring that more antenna elements can be accommodated in per unit area. The more antenna elements mean that a beamforming method may be used to improve the antenna gains so as to ensure the coverage performance of the high frequency communication. Using the beamforming method, a transmitting end may concentrate transmitting energy in one direction, while the transmitting energy is small or free in other directions. That is, each beam has its own directivity and may only cover terminals in a certain direction, and the transmitting end, that is, a base station, needs to transmit multiple beams to implement full coverage. For example, the number of beams ranges from tens to hundreds. To meet access requirements of terminals in multiple directions, it is necessary to implement all-directional coverage of system broadcast messages. A communication station needs to repeatedly send the same system broadcast message in multiple beam directions. For the communication station, the "absolute overheads" of system broadcast messages also becomes larger. In a new radio (NR) communication system, system information is divided into minimum system information (minimum SI) and other system information (OSI). The minimum system information is divided into master information block (MIB) carried by a physical broadcast channel (PBCH) and remaining minimum system information (RMSI) carried by a physical downlink shared channel (PDSCH). The RMSI is carried by the PDSCH and scheduled by a corresponding physical downlink control channel (PDCCH). The MIB is used for providing a basic system parameter of a cell. The remaining minimum system information is used for providing configuration information related to initial access, such as sending configuration of a initial access request, and receiving configuration of a initial access response message. Other system information that needs to be broadcasted is referred to as other system information. RMSI transmission is as shown in FIG 1. FIG 1 is a schematic diagram of RMSI transmission according to the related art. Time division multiplexing or frequency division multiplexing between the RMSI and a synchronization signal physical broadcast channel block (SS/PBCH block, SSB) is supported in the standards. In view of the mode of time division multiplexing, FIG. 2 is a schematic diagram of time division multiplexing transmission for RMSI according to the related art. As shown in FIG. 2, during the RMSI transmission, the RMSI transmission may overlap with the transmission for the synchronous signal physical broadcast channel block, and the RMSI may even be mapped in the same slot as the SSB. As regards RMSI PDSCH reception, when it is specified in the current standard that a terminal receives the PDSCH according to an indication in RMSI PDCCH resource allocation, it is not regarded that the PDSCH contains a resource for SSB transmission. This does not mean that the RMSI transmission has a higher priority than the SSB transmission, but rather a limit for the base to consider a resource occupied by the SSB when the base station allocates an RMSI resource and avoiding scheduling an RMSI PDSCH onto the resource occupied by the SSB. The terminal cannot know actual transmission location information of the SSB when the RMSI is received, therefore, in a case where the RMSI resource overlaps the SSB resource, the terminal cannot implement rate matching based RMSI PDSCH reception according to the location of the SSB resource. In the time domain resource allocation according to the related art, the PDSCH is only supported to occupy multiple consecutive symbols in a slot. As regards the RMSI transmission, in view of the preceding particularity, the resource allocation for the RMSI PDSCH is greatly limited in a case where the SSB occupies a middle symbol of a certain slot, and even the RMSI PDSCH transmission cannot be implemented in the certain slot. It can be seen that the time domain resource allocation in the related art is not applicable to the RMSI. 3GPP Draft List of RAN1 agreements, F-06921, vol