Method and device for grouping user equipments in proximity services restricted discovery
First Claim
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1. A grouping method based on machine type communication (MTC), used in a communications system, comprising:
- broadcasting, by a base station, grouping requests to a plurality of user equipments (UEs) in an area;
determining, by the base station, whether there is at least one group leader among the UEs; and
receiving, by the base station, a grouping report from the group leader when determining that there is a group leader among the UEs,wherein the grouping report records UE identifiers of the UEs in a group corresponding to the group leader.
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Abstract
A grouping method based on machine type communication (MTC), used in a communications system, including: broadcasting, by a base station, grouping requests to a plurality of user equipments (UEs) in an area; determining, by the base station, whether there is at least one group leader among the UEs; and receiving, by the base station, a grouping report from the group leader when determining that there is a group leader among the UEs, wherein the grouping report records UE identifiers of the UEs in a group corresponding to the group leader.
11 Citations
26 Claims
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1. A grouping method based on machine type communication (MTC), used in a communications system, comprising:
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broadcasting, by a base station, grouping requests to a plurality of user equipments (UEs) in an area; determining, by the base station, whether there is at least one group leader among the UEs; and receiving, by the base station, a grouping report from the group leader when determining that there is a group leader among the UEs, wherein the grouping report records UE identifiers of the UEs in a group corresponding to the group leader. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A grouping method based on machine type communication (MTC), used in a user equipment (UE), comprising:
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receiving a group leader selection request; starting a random backoff timer; and broadcasting the group leader selection accepts to the base station and at least one second UE, respectively, when the random backoff timer has expired and the UE does not receive any group leader selection accept from the at least one second UE, wherein the UE becomes a group leader; and receiving a group leader selection complete message transmitted from the base station. - View Dependent Claims (13)
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14. A communications system for grouping user equipments (UEs) based on machine type communication (MTC), comprising:
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a base station, broadcasting grouping requests; and a plurality of UEs, receiving the respective grouping requests; wherein the base station determines whether there is at least one group leader among the UEs;
the base station receives a grouping report from the group leader when determining that there is a group leader among the UEs, wherein the grouping report records UE identifiers of the UEs in a group corresponding to the group leader. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A communication device for grouping user equipments (UEs) based on machine type communication (MTC), comprising:
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a control circuit; a processor installed in the control circuit; and a memory installed in the control circuit and operatively coupled to the processor; wherein the processor is configured to execute a program code stored in the memory to; receive a group leader selection request transmitted from a base station; start a random backoff timer; and broadcast the group leader selection accepts to the base station and at least one second UE, respectively, when the random backoff timer has expired and the UE does not receive any group leader selection accept from the at least one second UE, wherein the UE becomes a group leader; and receive a group leader selection complete message transmitted from the base station. - View Dependent Claims (26)
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Specification