Communication method and information processing apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsXingqing Cheng, Lei Gao, Guanjun Ni, Jian Wang
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Abstract
First information is sent using a multicast resource to a communication apparatus group that includes at least two communication apparatuses. Feedback information is detected, on a shared unified time-frequency resource, from at least one communication apparatus in the communication apparatus group, where the feedback information indicates that there is at least one communication apparatus in the group that fails to correctly receive the first information, where the time-frequency resource is a feedback resource used by all communication apparatus in the communication apparatus group to send feedback information.
Claims20
A method comprising:
- sending, using a multicast resource, first information to a communication apparatus group comprising a plurality of communication apparatuses;
- and
- detecting, on a unified time-frequency resource and from a first communication apparatus in the communication apparatus group, a signal that carries feedback information indicating that the first communication apparatus has failed to correctly receive the first information on the multicast resource,
- wherein the unified time-frequency resource is a shared feedback resource useable by all communication apparatus in the communication apparatus group, and
- wherein the signal comprises one or more sequences, and wherein at least one of the one or more sequences is:
- predefined or preconfigured;
- based on a first predefined rule;
- or
- based on a predefined parameter or a preconfigured parameter and based on a second predefined rule.
A method comprising:
- attempting to detect first information from a multicast resource;
- attempting to receive the first information based on a first symbol rate;
- and
- sending, using a unified time-frequency resource, to a first communication apparatus, and using a second symbol rate, feedback information indicating that a second communication apparatus in a communication apparatus group comprising a plurality of communication apparatuses has failed to correctly receive the first information,
- wherein the unified time-frequency resource is a shared feedback resource useable by all second communication apparatus in the communication apparatus group, and
- wherein the first symbol rate is greater than the second symbol rate.
A first apparatus comprising:
- a memory configured to store instructions;
- and
- at least one processor coupled to the memory and configured to execute the instructions to cause the first apparatus to:
- send, using a multicast resource, first information to a communication apparatus group comprising a plurality of communication apparatuses;
- and
- detect, on a unified time-frequency resource and from a second communication apparatus in the communication apparatus group, a signal that carries feedback information indicating that the second communication apparatus has failed to correctly receive the first information,
- wherein the unified time-frequency resource is a shared feedback resource useable by all communication apparatus in the communication apparatus group,
- wherein the signal comprises one or more sequences, and wherein at least one of the one or more sequences is:
- predefined or preconfigured;
- based on a first predefined rule;
- or
- based on a predefined parameter or a preconfigured parameter and based on a second predefined rule, and
- wherein the communication apparatuses respectively correspond to different sequences in the one or more sequences.
Dependencies are inferred from the claim text.