Control node resource selection and allocation method and device

Patent metadata

Field	Value
Publication number	US-9907053-B2
Application number	US-201415035111-A
Country	US
Kind code	B2
Filing date	Jun 9, 2014
Priority date	Nov 7, 2013
Publication date	Feb 27, 2018
Grant date	Feb 27, 2018

Abstract

The present invention discloses a control node resource selection and allocation method and device, wherein said method comprises: a first D2D device sends control node broadcast information; said first D2D UE is confirmed as the control node.

First claim

What is claimed is:

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; or
sensing, 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; or
if 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.

2. The method according to claim 1 , wherein the control node broadcast information comprises 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.

3. The method according to claim 1 , further comprising:
sending, by the first D2D UE, control node pre-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.

4. The method according to claim 3 , further comprising: before sending, by the first D2D UE, the control node pre-broadcast information, determining, by the first D2D UE, whether the control node broadcast information or the control node pre-broadcast information is received at the carrier frequency for D2D communication; if the control node broadcast information or the control node pre-broadcast information is received, determining whether the signal intensity of the received control node broadcast information or control node pre-broadcast information is greater than the preset threshold;
further comprising: after sending, by the first D2D UE, the control node pre-broadcast information, determining whether the control node pre-broadcast information sent by the neighbouring D2D UE is received.

5. A method for a control node to allocate resources, comprising:
after a first Device-to-Device (D2D) User Equipment (UE) is determined as the control node, sending and receiving, by the first D2D UE, control node information via an air interface, wherein the control node information comprises at least one of: control node Identification (ID) information, level information, subframe pattern 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; and
using, by the first D2D UE, the control node information to allocate resources,
wherein using, by the first D2D UE, the control node information to allocate resources comprises:
staggering in the time domain, by the first D2D UE according to the received control node information, wireless resources for sending information between the neighbouring control node and the first D2D UE and wireless sources used for serving all D2D UEs managed by the first D2D UE.

6. A control node, comprising:
a memory storing processor-executable instructions; and
a processor arranged to execute the stored processor-executable instructions to perform steps of:
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
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; or
sensing, 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; or
if 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.

7. The control node according to claim 6 , whe

Assignees

• Zte Corp

Inventors

• Huang Ying
• Chen Lin
• Xie Feng
• Luo Yumin

Classifications

• H04W72/30 Primary

  Resource management for broadcast services · CPC title

• H04W76/00 Primary

  Connection management · CPC title

• H04W76/023

  Electricity · mapped topic

• H04W72/005 Primary

  Electricity · mapped topic

• H04W76/021

  Electricity · mapped topic