Repeated information sending and receiving method, base station, and user equipment
A technology for repeating information and user equipment, which is applied in the directions of error prevention/detection through transmission repetition, channel coding adjustment, and transmission modification based on link quality. , the effect of avoiding waste of resources
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Example Embodiment
[0130] Example 1
[0131] In the coverage enhancement scenario, the base station adjusts the repetition level / number of times or the coverage level of the downlink control channel through physical layer signaling.
[0132] Among them, the physical layer signaling is to add a new bit field to the existing DCI format to achieve indication adjustment; the new bit field includes a repetition level indicator field or a repetition number indicator field. In the physical layer signaling, 2 bits can be used to indicate 3 repetition levels, as shown in Table 5.
[0133] Table 52bit indicates 3 coverage levels / repetition levels / times
[0134] Index
[0135] The starting subframe of the physical layer signaling is determined according to the current repetition level. Sending the physical layer signaling for adjusting the repetition level uses the same starting subframe as the control channel of the current coverage level. The starting subframe used by the control channel of the current cove...
Example Embodiment
[0138] Example 2
[0139] In the coverage enhancement scenario, the base station adjusts the downlink traffic channel through high-level signaling, such as Radio Resource Control (Radio Resource Control, RRC) signaling (including System Information Block (SIB) messages). Repeat level / number of times or coverage level.
[0140] Among them, the bit field used by RRC signaling includes a repetition level indicator field or a repetition number indicator field. In RRC signaling, 2 bits can be used to indicate 4 repetition levels, as shown in Table 6.
[0141] Table 62bit indicates 4 coverage levels / repetition levels / times
[0142] Index
[0143] The starting subframe for transmitting the PDSCH carrying the RRC signaling is determined according to the timing relationship with the corresponding PDCCH, that is, k subframes start after the repeated transmission of the PDCCH ends, such as k=1. The RRC signaling is sent using the current repetition level and is sent only once.
[0144] The e...
Example Embodiment
[0146] Example 3
[0147] In the coverage enhancement scenario, the base station adjusts the repetition level / number of times or coverage level of the uplink control channel through physical layer signaling.
[0148] Among them, the physical layer signaling is to add a new bit field to the existing DCI format to achieve indication adjustment; the new bit field includes a repetition level indicator field or a repetition number indicator field. In the physical layer signaling, 2 bits can be used to indicate 3 repetition levels, as shown in Table 7.
[0149] Table 72bit indicates 3 coverage levels / repetition levels / times
[0150] Index
[0151] The starting subframe of the physical layer signaling is determined according to a predefined value. Sending the physical layer signaling to adjust the repetition level uses the radio frame subframe 0 as the starting subframe and uses the repetition number N determined by the current repetition level, and the physical layer signaling is sent N...
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