Enhancing group communication services
View Patent ↗In some implementations, a method in a user equipment (UE) for supporting group communication service includes receiving, from a base station, a group communication on a Physical Downlink Shared Channel (PDSCH). The UE determines a first Hybrid Automatic Repeat reQuest (HARQ) information that corresponds to the group communication on the PDSCH. The UE transmits the first HARQ information. In some implementations, the UE determines a group Channel State Information (CSI) for a group communication that is transmitted by a base station on a PDSCH. The UE determines a unicast CSI for a unicast communication that is transmitted by the base station on the PDSCH. The UE transmits the group CSI. The UE transmits the unicast CSI.
1. A method for mobile communication system comprising:
receiving, at a user equipment (UE), a group offset value associated with a group of UEs, wherein the UE is included in the group of UEs;
receiving, from a base station, a group communication on a Physical Downlink Shared Channel (PDSCH), wherein the group communication comprises a data packet addressed to a plurality of UEs in the group of UEs;
determining, by the UE and based on whether the data packet addressed to the plurality of UEs is received, a first Hybrid Automatic Repeat reQuest (HARQ) information that corresponds to the group communication on the PDSCH;
receiving, from the base station, a unicast communication on the PDSCH;
determining, by the UE a second HARQ information that corresponds to the unicast communication on the PDSCH; and
transmitting, from the UE, the first HARQ information and the second HARQ information together based on a Downlink (DL) grant that is associated with the unicast communication on the PDSCH.
2. The method of claim 1 , wherein the first HARQ information and the second HARQ information are transmitted together using Physical Uplink Control Channel (PUCCH) format 3.
3. A user equipment (UE), comprising:
a receiver that receives, from a base station, a group offset value associated with a group of UEs, wherein the UE is included in the group of UEs, the receiver further receiving a group communication and a unicast communication on a Physical Downlink Shared Channel (PDSCH), wherein the group communication comprises a data packet addressed to a plurality of UEs in the group of UEs;
one or more processors configured to:
determine, based on whether the data packet addressed to the plurality of UEs is received, a first Hybrid Automatic Repeat reQuest (HARQ) information that corresponds to the group communication on the PDSCH;
determine a second HARQ information that corresponds to the unicast communication on the PDSCH; and
a transmitter that transmits the first HARQ information and the second HARQ information together based on a Downlink (DL) grant that is associated with the unicast communication on the PDSCH.
4. A tangible, non-transitory computer-readable medium storing instructions which, when executed by one or more processors, cause a computing system to perform operations comprising:
receiving, at a user equipment (UE), a group offset value associated with a group of UEs, wherein the UE is included in the group of UEs;
receiving, from a base station, a group communication on a Physical Downlink Shared Channel (PDSCH), wherein the group communication comprises a data packet addressed to a plurality of UEs in the group of UEs;
determining, based on whether the data packet addressed to the plurality of UEs is received, a first Hybrid Automatic Repeat reQuest (HARQ) information that corresponds to the group communication on the PDSCH;
receiving, from the base station, a unicast communication on the PDSCH;
determining a second HARQ information that corresponds to the unicast communication on the PDSCH; and
transmitting, from the UE, the first HARQ information and the second HARQ information together based a Downlink (DL) grant that is associated with the unicast communication on the PDSCH.