Wireless communication method and device for reducing network delay
A wireless communication, low-latency technology, applied in the field of control channels for low-latency transmission
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Embodiment 1
[0145] Embodiment 1 illustrates a flowchart of an embodiment of sending and receiving, as attached figure 1 Shown. Attached figure 1 Among them, the base station N1 is the maintenance base station of the serving cell of the UE U2.
[0146] For the base station N1, the first signaling is sent in step S11. The first signaling indicates a target subband set. The target subband set includes a positive integer number of subbands.
[0147] As an embodiment, the uplink signal is transmitted on a physical layer control channel. As a sub-embodiment of this embodiment, the physical layer control channel is PUCCH. As another sub-embodiment of this embodiment, the physical layer control channel is sTTI-PUCCH. Wherein, the sTTI-PUCCH is used to transmit uplink control information, and is located in a broadband symbol corresponding to a short time slot.
[0148] As an embodiment, the uplink signal is transmitted on a physical layer data channel. As a sub-embodiment of this embodiment, the ph...
Embodiment 2
[0201] Embodiment 2 shows a schematic diagram showing the distribution of a short time slot in an LTE subframe according to the present invention. The LTE subframe includes 4 broadband symbols for uplink reference signal transmission, and the 4 broadband symbols for uplink reference signal transmission belong to four different short time slots. Fig. 2(a) and Fig. 2(b) are for N-CP (Normal-Cyclic Prefix) scenarios where SRS is not configured and SRS is configured. Figures 2(c) and 2(d) are for the case where SRS is not configured and SRS is configured in the E-CP (Extended-Cyclic Prefix) scenario. Such as Figure 2(a) to Figure 2(d) As shown, one LTE subframe includes 4 short time slots. The part marked "x" in the figure corresponds to the resource unit occupied by the uplink signal in the xth short time slot. The uplink signal and the uplink reference signal Y in the xth short time slot form the xth short time slot, and are composed of the same (One or more) antenna port (tha...
Embodiment 3
[0205] Embodiment 3 shows a schematic diagram of the distribution of a short time slot in an LTE subframe according to the present invention. The LTE subframe includes 4 broadband symbols for uplink reference signal transmission, and the 4 broadband symbols for uplink reference signal transmission can be shared by different short time slots. Figures 3(a) and 3(b) are for the case where SRS is not configured and SRS is configured in the N-CP scenario. Figures 3(c) and 3(d) are for the case where SRS is not configured and SRS is configured in the E-CP scenario. Such as Figure 3(a) to Figure 3(d) As shown, one LTE subframe includes 4 short time slots.
[0206] As a sub-embodiment, the part marked "x" in the figure corresponds to the resource unit occupied by the uplink signal in the xth short time slot, and the uplink signal and the uplink reference signal Y in the xth short time slot form the first short time slot. Time slot, and sent by the same antenna port (one or more) (that...
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