Control node resource selection and allocation method and device

• US 20160316452A1
• Filed: 06/09/2014
• Published: 10/27/2016
• Est. Priority Date: 11/07/2013
• Status: Active Grant

• Current Assignee: ZTE Corporation
• Original Assignee: ZTE Corporation
• Inventors: Luo, Yumin, Huang, Ying, Chen, Lin, Xie, Feng
• Granted Patent: US 9,907,053 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 72/30 Resource management for broadcast services
• CPC Class Codes: H04W 76/00 Connection management
• CPC Class Codes: H04W 76/11 Allocation or use of connection identifiers
• CPC Class Codes: H04W 76/14 Direct-mode setup
• CPC Class Codes: H04W 76/40 for selective distribution or broadcast
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

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.

Claims

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.

2. The method according to claim 1, 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;

if the control node pre-broadcast information is not received, sending the control node broadcast information;

or

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

if the control node broadcast information sent by other control nodes is not received, sending, by the first D2D UE, the control node broadcast information;

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.

8. 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.

9. 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.

10. The method according to claim 9, 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.

3-7. -7. (canceled)

11. 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.

13. The method according to claim 11, wherein using, by the first D2D UE, the control node information to allocate resources comprises:

configuring, by the first D2D UE according to the received control node information, a D2D UE managed by the first D2D UE with wireless resources, wherein the wireless resources are different from wireless resources used by a D2D UE managed by a neighbouring control node; and

/or

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.

12. (canceled)

14. A control node, comprising:

a sending unit, which is configured to send control node broadcast information; and

an information processing unit, which is configured to determine a Device-to-Device (D2D) User Equipment (UE) where the information processing unit is located as the control node.

15. The control node according to claim 14, further comprising:

a receiving unit, which is configured to sense information sent by a neighbouring D2D UE;

wherein the information processing unit is configured to;

determine whether the receiving unit receives control node pre-broadcast information sent by the neighbouring D2D UE;

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

if yes, send the control node broadcast information;

or else, perform no operations;

if the control node pre-broadcast information is not received, directly send the control node broadcast information.

16. The control node according to claim 15, wherein the information processing unit is configured to sense, through the receiving unit, a carrier frequency for D2D communication, and if control node broadcast information sent by other control nodes is not received, send the control node broadcast information;

or

the information processing unit is configured to sense the carrier frequency for D2D communication, and if the control node broadcast information sent by other control nodes is received and the signal intensity of the control node broadcast information sent by other control nodes is less than a preset threshold, send the control node broadcast information.

17. The control node according to claim 15, wherein the information processing unit is configured to, if the D2D UE where the information processing unit is located is preconfigured as the control node, send the control node broadcast information.

18. The control node according to claim 15, wherein the control node pre-broadcast information comprises:

the collision resolution ID value; and

wherein the collision resolution ID value is calculated by the D2D UE according to specified parameters or selected randomly.

19. The control node according to claim 17, wherein the control node pre-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.

20. The control node according to claim 15, wherein the control node broadcast information comprises:

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

21. The control node according to claim 20, 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.

22. The control node according to claim 15, wherein the information processing unit is configured to send the control node pre-broadcast information.

23. The control node according to claim 22, wherein the information processing unit is configure to, before sending the control node pre-broadcast information, determine whether the control node broadcast information or the control node pre-broadcast information is received at the carrier frequency for D2D communication, and if the control node broadcast information or the control node pre-broadcast information is received, determine whether the signal intensity of the received control node broadcast information or control node pre-broadcast information is greater than the preset threshold;

the information processing unit is further configure to, after sending the control node pre-broadcast information, determine whether the control node pre-broadcast information sent by the neighbouring D2D UE is received.

24. A control node, comprising:

a receiving and sending unit, and a processing unit,

wherein the receiving and sending unit is configured to, after a first Device-to-Device (D2D) User Equipment (UE) is determined as the control node, send and receive control node information via an air interface, and send the received control node information to the processing unit; and

wherein the processing unit is configured to use the control node information to allocate resources.

25. The control node according to claim 24, 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.

26. The control node according to claim 25, wherein the processing unit is configured to:

configure, according to the received control node information, D2D UEs managed by the control node with different wireless resources; and

/or

stagger, in the time domain, resources of all D2D UEs managed by the control node and of D2D UEs managed by other control nodes.