Method of supporting operation of sleep mode in a wideband radio access system
First Claim
Patent Images
1. A method of directing downlink data to a mobile station supporting a sleep mode in a broadband wireless access system, the method comprising:
- receiving, by a base station, a sleep request message from the mobile station;
allowing the mobile station to enter the sleep mode by transmitting a sleep response message including a sleep identifier (SLPID) to the mobile station; and
transmitting, by the base station, a traffic indication (MOB-TRF-IND) message when the mobile station'"'"'s periodic ranging is scheduled to start even if there is no downlink data to be transmitted to the mobile station,wherein the traffic indication (MOB-TRF-IND) message includes a format (FMT) field indicating which one of an SLPID bit-map based format and an SLPID based format is used for configuring the traffic indication message, andwherein the traffic indication (MOB-TRF-IND) message further includes the sleep identifier (SLPID) of the mobile station, but not SLPID bit-map, when the SLPID based format is indicated in the format field of the traffic indication (MOB-TRF-IND) message such that the traffic indication (MOB-TRF-IND) message is formatted based only on the SLPID that is allocated by the sleep response message.
2 Assignments
0 Petitions
Accused Products
Abstract
A method of supporting operation of sleep mode in a wideband radio access system is disclosed. More specifically, a mobile subscriber station (MSS) which determines a frame offset information for synchronizing listening windows of at least one MSS that is in sleep mode, and transmits the determined framed offset information to at least one MSS.
7 Citations
12 Claims
-
1. A method of directing downlink data to a mobile station supporting a sleep mode in a broadband wireless access system, the method comprising:
-
receiving, by a base station, a sleep request message from the mobile station; allowing the mobile station to enter the sleep mode by transmitting a sleep response message including a sleep identifier (SLPID) to the mobile station; and transmitting, by the base station, a traffic indication (MOB-TRF-IND) message when the mobile station'"'"'s periodic ranging is scheduled to start even if there is no downlink data to be transmitted to the mobile station, wherein the traffic indication (MOB-TRF-IND) message includes a format (FMT) field indicating which one of an SLPID bit-map based format and an SLPID based format is used for configuring the traffic indication message, and wherein the traffic indication (MOB-TRF-IND) message further includes the sleep identifier (SLPID) of the mobile station, but not SLPID bit-map, when the SLPID based format is indicated in the format field of the traffic indication (MOB-TRF-IND) message such that the traffic indication (MOB-TRF-IND) message is formatted based only on the SLPID that is allocated by the sleep response message. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A base station for directing downlink data to a mobile station supporting a sleep mode in a broadband wireless access system, the base station configured for:
-
receiving a sleep request message from the mobile station; allowing the mobile station to enter the sleep mode by transmitting a sleep response message including a sleep identifier (SLPID) to the mobile station; and transmitting a traffic indication (MOB-TRF-IND) message when the mobile station'"'"'s periodic ranging is scheduled to start even if there is no downlink data to be transmitted to the mobile station, wherein the traffic indication (MOB-TRF-IND) message includes a format (FMT) field indicating which one of an SLPID bit-map based format and an SLPID based format is used for configuring the traffic indication message, and wherein the traffic indication (MOB-TRF-IND) message further includes the sleep identifier (SLPID) of the mobile station, but not an SLPID bit-map, when the SLPID based format is indicated in the format field of the traffic indication (MOB-TRF-IND) message such that the traffic indication (MOB-TRF-IND) message is formatted based only on the SLPID that is allocated by the sleep response message. - View Dependent Claims (8, 9, 10, 11, 12)
-
Specification