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Method for sending packet data, base station, and mobile station

  • US 10,397,848 B2
  • Filed: 09/08/2015
  • Issued: 08/27/2019
  • Est. Priority Date: 05/19/2009
  • Status: Active Grant
First Claim
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1. A method for sending packet data, comprising:

  • receiving, by a base station (BS), packet data from a mobile station (MS), wherein the packet data comprises an identity of a destination MS;

    searching, by the BS, the identity of the destination MS in an MS status table storing respectively information of MSs, access statuses of the MSs to the BS, and information of other MS determined to be a cluster head for an MS;

    when the identity of the destination MS is not found in the MS status table, sending, by the BS, the packet data to a core network; and

    when the identity of the destination MS is found in the MS status table, determining, by the BS, an access status of the destination MS to the BS in the MS status table, andin response to the determining,when the access status of the destination MS to the BS is a direct access status, sending, by the BS, the packet data to the destination MS,when the access status of the destination MS to the BS is a not direct access status, selecting, by the BS, a cluster head for the destination MS from the MS status table and sending the packet data to the cluster head, andwhen the not direct access status of the destination MS to the BS is cooperative access,the selecting, by the BS, the cluster head comprises selecting, by the BS, the cluster head from a cluster head table according to a combined value of a path loss of a path between the BS and the cluster head, a path loss of a link between the cluster head and a MS, and rest energy of the cluster head.

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