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Control node resource selection and allocation method and device

  • US 9,907,053 B2
  • Filed: 06/09/2014
  • Issued: 02/27/2018
  • Est. Priority Date: 11/07/2013
  • Status: Active Grant
First Claim
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1. A method for selecting a control node, comprising:

  • sending, by a first Device-to-Device (D2D) User Equipment (UE), control node broadcast information, wherein the control node broadcast information comprises;

    type indication information which is used for indicating whether the first D2D UE has a control node identity; and

    determining the first D2D UE as the control node,wherein sending, by the first D2D UE, the control node broadcast information comprises;

    sensing, by the first D2D UE, a carrier frequency for D2D communication, and determining whether control node pre-broadcast information sent by a neighbouring D2D UE is received;

    if the control node pre-broadcast information is received, comparing whether a collision resolution Identification (ID) value of the neighbouring D2D UE is less than a collision resolution ID value of the first D2D UE;

    if yes, sending the control node broadcast information;

    or else, performing no operations;

    orsensing, by the first D2D UE, the carrier frequency for D2D communication;

    if the first D2D UE receives the control node broadcast information sent by other control nodes, and the signal intensity of the control node broadcast information sent by other control nodes is less than a preset threshold, sending, by the first D2D UE, the control node broadcast information;

    orif the first D2D UE is preconfigured as the control node, sending, by the first D2D UE, the control node broadcast information;

    wherein the control node pre-broadcast information comprises;

    the collision resolution ID value, the collision resolution ID value being calculated by the D2D UE according to specified parameters or selected randomly, or the control node pre-broadcast information comprises the collision resolution ID value and at least one of;

    control node ID information, synchronization information, an effective duration, level information, access related information, wireless resource configuration information, information about a group ID list, information about a D2D UE wireless side ID list, information about a group wireless side ID list, and information about a mapping table of group IDs and group wireless side IDs.

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