Method and device for allocating resources in wireless communication system
Provided are a method and device for rate matching in a wireless communication system. More specifically, provided is a method for rate matching by user equipment (UE), in new radio access technology (NR), under various circumstances. As an example, UE receives a configuration for the rate matching either UE-specifically or cell-specifically, and, if the configuration is received UE-specifically, the rate matching is performed only on unicast data, and, if the configuration is received cell-specifically, the rate matching is performed on broadcast data and the unicast data.
1. A method for a wireless device in a wireless communication system, the method comprising:
receiving, from a network, a set of rate matching patterns, wherein each of the rate matching patterns includes a set of symbols, in at least one slot, to which rate matching is applied, and wherein resources at each of the set of symbols to which the rate matching is applied is indicated by a bitmap which has a size of a maximum scheduling unit with which the wireless device can be scheduled;
receiving, from the network, information informing at least one rate matching pattern from among the set of rate matching patterns;
applying the rate matching on a data channel around resources at each of the set of symbols included in the at least one rate matching pattern; and
receiving, from the network, data on the data channel.
2. The method of claim 1 , wherein the rate matching is applied per each of the set of symbols.
3. The method of claim 1 ,
wherein the resources at each of the set of symbols included in the at least one rate matching pattern is not available for the data channel.
4. The method of claim 1 , wherein a demodulation reference signal (DM-RS) is received on the data channel in the resources at each of the set of symbols included in the at least one rate matching pattern.
5. The method of claim 1 , wherein downlink control information (DCI) scheduling the data channel is received in the resources at each of the set of symbols included in the at least one rate matching pattern.
6. The method of claim 1 , wherein the data includes a unicast data.
7. The method of claim 1 , wherein the data does not a broadcast data.
8. The method of claim 1 , wherein the set of rate matching patterns is received per bandwidth part (BWP).
9. The method of claim 8 , wherein the set of rate matching patterns is received based on a numerology used per BWP.
10. A wireless device in a wireless communication system, the wireless device comprising:
a memory;
a transceiver; and
a processor coupled to the memory and the transceiver, wherein the wireless device is configured to:
receive, from a network via the transceiver, a set of rate matching patterns, wherein each of the rate matching patterns includes a set of symbols, in at least one slot, to which rate matching is applied, and wherein resources at each of the set of symbols to which the rate matching is applied is indicated by a bitmap which has a size of a maximum scheduling unit with which the wireless device can be scheduled;
receive, from the network via the transceiver, information informing at least one rate matching pattern from among the set of rate matching patterns;
apply the rate matching on a data channel around resources at each of the set of symbols included in the at least one rate matching pattern; and
receive, from the network via the transceiver, data on the data channel.
11. The method of claim 1 , wherein the wireless device is in communication with at least one of a mobile device, a network, and/or autonomous vehicles other than the wireless device.