Communication method and frame structure for a coordinator device, source device and relay device in a wireless system
AssigneeElectronics and Telecommunications Research Institute
InventorsHyoung Jin Kwon, Yong Sun Kim, Kap Seok Chang, Seung Eun Hong, Sung Geun Jin, Woo Yong Lee, Hyun Kyu Chung
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Abstract
Provided is a communication method of a coordinator in a wireless networks system that uses a reservation-based media access control (MAC). The communication method includes receiving, from a source device, a frame that requests a reservation resource for a relay device, to enable a frame that the source device transmits to a destination device to be relayed via the relay device, and allocating the reservation resource for the relay device, in response to the request.
Claims10
A communication method performed by a source device, the method comprising:
- sending an RLS (Relay Link Setup) request frame to a relay device for an RLS process;
- receiving an RLS response frame from the relay device;
- and
- transmitting an RLS announcement frame to indicate successfully performing the RLS process to a coordinator including a PCP (Personal BSS control point) or AP (Access point),
- wherein the coordinator transmits an announce frame or beacon frame including an extended schedule element for a service period to the relay device, wherein the extended schedule element includes a plurality of allocation fields related to (i) allocation control, (ii) a source association ID (AID) for the source device, (iii) a destination AID for a destination device, (iv) allocation start, (v) allocation block duration, (vi) BF control, (vii) number of blocks, and (viii) allocation block period,
- wherein the source device, the relay device and the destination device exchange a frame in a data transfer time comprising a contention-based access period and the service period,
- wherein the exchanged frame includes (i) a frame control field for control of a MAC frame, and (ii) an address field for an address of an initiator and an address of a responder, and
- wherein the address field is set to addresses of the source device, the relay device, the destination device and a BSSID.
A source device for performing a communication method, the source device comprising:
- one or more processors configured to:
- send an RLS(Relay Link Setup) request frame to a relay device for an RLS process;
- receive an RLS response frame from the relay device;
- and
- transmit an RLS announcement frame to indicate successfully performing the RLS process to a coordinator including a PCP (Personal BSS control point) or AP (Access point),
- wherein the coordinator transmits an announce frame or beacon frame including an extended schedule element for a service period into the relay device, wherein the extended schedule element includes a plurality of allocation fields related to (i) allocation control, (ii) a source association ID (AID) for the source device, (iii) a destination AID for a destination device, (iv) allocation start, (v) allocation block duration, (vi) BF control, (vii) number of blocks, and (viii) allocation block period,
- wherein the source device, the relay device and the destination device exchange a frame in a data transfer time comprising a contention-based access period and the service period,
- wherein the exchanged frame includes (i) a frame control field for control of a MAC frame, and (ii) an address field for an address of an initiator and an address of a responder, and
- wherein the address field is set to addresses of the source device, the relay device, the destination device and a BSSID.
Dependencies are inferred from the claim text.