CA2556297A1 - System and method for controlling an operational mode of a mac layer in a broadband wireless access communication system - Google Patents

System and method for controlling an operational mode of a mac layer in a broadband wireless access communication system Download PDF

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Publication number
CA2556297A1
CA2556297A1 CA 2556297 CA2556297A CA2556297A1 CA 2556297 A1 CA2556297 A1 CA 2556297A1 CA 2556297 CA2556297 CA 2556297 CA 2556297 A CA2556297 A CA 2556297A CA 2556297 A1 CA2556297 A1 CA 2556297A1
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CA
Canada
Prior art keywords
mobile subscriber
subscriber station
paging
mode
base station
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2556297
Other languages
French (fr)
Other versions
CA2556297C (en
Inventor
Hyon-Goo Kang
Bong-Gee Song
Kwang-Seop Eom
Seung-Eun Hong
Yeong-Moon Son
So-Hyun Kim
Seung-Il Yoon
Tae-Won Kim
Geun-Hwi Lim
Jung-Shin Park
Jae-Jeong Shim
Hong-Sung Chang
Yong Chang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co., Ltd.
Hyon-Goo Kang
Bong-Gee Song
Kwang-Seop Eom
Seung-Eun Hong
Yeong-Moon Son
So-Hyun Kim
Seung-Il Yoon
Tae-Won Kim
Geun-Hwi Lim
Jung-Shin Park
Jae-Jeong Shim
Hong-Sung Chang
Yong Chang
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co., Ltd., Hyon-Goo Kang, Bong-Gee Song, Kwang-Seop Eom, Seung-Eun Hong, Yeong-Moon Son, So-Hyun Kim, Seung-Il Yoon, Tae-Won Kim, Geun-Hwi Lim, Jung-Shin Park, Jae-Jeong Shim, Hong-Sung Chang, Yong Chang filed Critical Samsung Electronics Co., Ltd.
Priority to CA 2760916 priority Critical patent/CA2760916C/en
Publication of CA2556297A1 publication Critical patent/CA2556297A1/en
Application granted granted Critical
Publication of CA2556297C publication Critical patent/CA2556297C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/04—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration using triggered events
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
    • H04W52/287—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission when the channel is in stand-by
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H04W64/003—Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
    • H04W52/0254—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity detecting a user operation or a tactile contact or a motion of the device
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/02—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration by periodical registration
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

A method for controlling operation modes of a medium access control layer by a mobile subscriber station in a broadband wireless access communication system including the mobile subscriber station and a serving base station providing service to the mobile subscriber station is provided. The method includes the steps of: mode-transiting into an idle mode when there is no data transmission between the serving base station and the mobile subscriber station during a predetermined first time interval in an awake mode; detecting movement of the mobile subscriber station in the idle mode into another paging zone covering a target base station, which is different from a paging zone covering the serving base station; and mode-transiting into the awake mode and performing location update together with the target base station when the movement of the mobile subscriber station is detected.

Claims (36)

1. A method for controlling operation modes of a medium access control layer by a mobile subscriber station in a broadband wireless access communication system including the mobile subscriber station and a serving base station providing service to the mobile subscriber station, the method comprising the steps of:
mode-transiting into an idle mode when the mobile subscriber station is in an inactive state to conserve power and operational resources;
detecting movement of the mobile subscriber station in the idle mode into another paging zone to which a target base station belongs, which is different from a paging zone to which the serving base station belongs; and mode-transiting into the awake mode and performing location update together with the target base station when the movement of the mobile subscriber station is detected.
2. The method as claimed in claim 1, further comprising the step of mode-transiting from the idle mode into the awake mode when the mobile subscribe station detects a paging targeting the mobile subscribe station itself.
3. The method as claimed in claim 2, wherein the step of detecting the paging comprises the steps of:
receiving paging information broadcasted from the serving base station in accordance with a paging cycle; and recognizing existence of the paging when the paging information contains the mobile subscriber station identifier of the mobile subscriber station.
4. The method as claimed in claim 3, wherein the paging information is broadcasted based on the paging cycle and an offset value determined in order to differently set time points at which mobile subscriber stations mode-transit from the awake mode into the idle mode from among mobile subscriber stations to which the serving base station provides service.
5. The method as claimed in claim 3, wherein the mobile subscriber station identifier is a medium access control layer address of the mobile subscriber station.
6. The method as claimed in claim 1, wherein the paging zone is a zone grouping a plurality of base stations and the base stations in a same paging zone use a same paging zone identifier.
7. The method as claimed in claim 6, wherein the step of performing the location update comprises the steps of:
requesting the location update by transmitting to the target base station a location up date request; and mode-transiting into the idle mode in response to a location update response which is transmitted from the target base station in response to the location update request.
8. A method for controlling operation modes of a medium access control layer by a mobile subscriber station in a broadband wireless access communication system including the mobile subscriber station and a serving base station providing service to the mobile subscriber station, the method comprising the steps of:
mode-transiting into an idle mode when there is no data transmission between the serving base station and the mobile subscriber station during a predetermined first time interval in an awake mode; and mode-transiting into the awake mode and performing location update of the mobile subscriber station itself at each predetermined interval in the idle mode.
9. The method as claimed in claim 8, wherein the predetermined interval is determined in consideration of a selected paging cycle determined by the mobile subscriber station and a counting value set in order to update the location of the mobile subscriber station in accordance with the selected paging cycle.
10. The method as claimed in claim 8, further comprising the step of mode-transiting into a sleep mode when there is no data transmission between the serving base station and the mobile subscriber station during a predetermined second time interval in the awake mode, the predetermined second time interval being shorter than the predetermined first time interval.
11. The method as claimed in claim 8, further comprising the step ofmode-transiting from the idle mode into the awake mode when the mobile subscribe station detects a paging targeting the mobile subscribe station itself.
12. The method as claimed in claim 11, wherein the step of detecting the paging comprises:
receiving paging information broadcasted from the serving base station in accordance with a paging cycle set in advance in the idle mode; and recognizing existence of the paging when the paging information contains the mobile subscriber station identifier of the mobile subscriber station.
13. The method as claimed in claim 12, wherein the mobile subscriber station identifier is a medium access control layer address of the mobile subscriber station.
14. The method as claimed in claim 12, wherein the paging information is determined based on the paging cycle and an offset value determined in order to differently set time points at which mobile subscriber stations mode-transit from the awake mode into the idle mode from among mobile subscriber stations to which the serving base station provides service.
15. The method as claimed in claim 8, wherein the step of performing the location update comprises the steps of:
performing the initial ranging;
requesting the location update by transmitting a location update request to a serving base station selected by the initial ranging, the location update request containing a mobile subscriber station identifier of the mobile subscriber station and an identifier of a paging zone to which the selected serving base station belongs; and mode-transiting into the idle mode in response to a location update response which is transmitted from the serving base station in response to the location update request, wherein the paging zone is a zone grouping a plurality of base stations grouped based on each paging unit.
16 The method as claimed in claim 15, wherein the mobile subscriber station identifier is a medium access control layer address of the mobile subscriber station.
17. A system for controlling operation modes of a medium access control layer by a mobile subscriber station in a broadband wireless access communication system including the mobile subscriber station and a serving base station providing service to the mobile subscriber station, the system comprising:
the mobile subscriber station which mode-transits into an idle mode when there is no data transmission between the serving base station and the mobile subscriber station during a predetermined first time interval in an awake mode, mode-transits into the awake mode and transmits a location update request to a target base station when detecting movement of the mobile subscriber station in the idle mode into another paging zone to which the target base station belongs, which is different from a paging zone to which the serving base station belongs, and performs location update in accordance with a location update response from the target base station, which responds to the location update request;
the target base station which, together with a paging controller for performing the paging zones, performs the location update of the mobile subscriber station and transmits the location update response to the mobile subscriber station when the location update request from the mobile subscriber station is detected; and the paging controller for updating the location of the mobile subscriber station correspondingly to the location update operation of the target base station and the mobile subscriber station.
18. The system as claimed in claim 17, wherein the mobile subscriber station mode-transits from the idle mode into the awake mode when the mobile subscribe station detects a paging targeting the mobile subscriber station itself.
19. The system as claimed in claim 18, wherein the mobile subscriber station receives paging information broadcast from the serving base station in accordance with a paging cycle set in advance in the idle mode and recognizes existence of the paging when the paging information contains the mobile subscriber station identifier of the mobile subscriber station.
20. The system as claimed in claim 19, wherein the mobile subscriber station identifier is a medium access control layer address of the mobile subscriber station.
21. The system as claimed in claim 19, wherein the paging controller determines the paging cycle, determines an offset value in order to differently set time points at which mobile subscriber stations mode-transit from the awake mode into the idle mode from among mobile subscriber stations to which the serving base station provides service, and determines the paging information based on the paging cycle and the offset value.
22. The system as claimed in claim 17, wherein the mobile subscriber station mode-transits into a sleep mode when there is no data transmission between the serving base station and the mobile subscriber station during a predetermined second time interval in the awake mode, the predetermined second time interval being shorter than the predetermined first time interval.
23. The system as claimed in claim 17, wherein the paging zone is a zone grouping a plurality of base stations based on each paging unit and the base stations in a same paging zone use a same paging zone identifier.
24. The system as claimed in claim 23, wherein the mobile subscriber station requests the location update by transmitting to the target base station the location update request containing the mobile subscriber station identifier of the mobile subscriber station and an identifier of the paging zone to which the serving base station belongs, and mode-transits into the idle mode in response to a location update response which is transmitted from the target base station in response to the location update request.
25. The system as claimed in claim 24, wherein the mobile subscriber station identifier is a medium access control layer address of the mobile subscriber station.
26. A system for controlling operation modes of a medium access control layer in a broadband wireless access communication system, the system comprising:
a mobile subscriber station which mode-transits into an idle mode when there is no data transmission between a base station and the mobile subscriber station during a predetermined first time interval in an awake mode, mode-transits into the awake mode and transmits a location update request to the base station at each predetermined interval in the idle mode, and performs location update in accordance with a location update response from the base station, which responds to the location update request;
the base station which, together with a paging controller for performing the paging zones, performs the location update of the mobile subscriber station and transmits the location update response to the mobile subscriber station when the location update request from the mobile subscriber station is detected;
and the paging controller for updating the location of the mobile subscriber station correspondingly to the location update operation of the base station and the mobile subscriber station.
27. The system as claimed in claim 26, wherein the predetermined interval is determined in consideration of a selected paging cycle determined by the mobile subscriber station and a counting value set in order to update the location of the mobile subscriber station in accordance with the selected paging cycle.
28. The system as claimed in claim 26, wherein the mobile subscriber station mode-transits into a sleep mode when there is no data transmission between the base station and the mobile subscriber station during a predetermined second time interval in the awake mode, the predetermined second time interval being shorter than the predetermined first time interval.
29. The system as claimed in claim 26, wherein the mobile subscriber station mode-transits from the idle mode into the awake mode when the mobile subscribe station detects a paging targeting the mobile subscribe station itself.
30. The system as claimed in claim 26, wherein the mobile subscriber station receives paging information broadcast from the base station in accordance with a paging cycle set in advance in the idle mode; and recognizes existence of the paging when the paging information contains the mobile subscriber station identifier of the mobile subscriber station.
31. The system as claimed in claim 30, wherein the mobile subscriber station identifier is a medium access control layer address of the mobile subscriber station.
32. The system as claimed in claim 30, wherein the paging controller determines the paging cycle, determines an offset value in order to differently set time points at which mobile subscriber stations mode-transit from the awake mode into the idle mode from among mobile subscriber stations to which the serving base station provides service, and determines the paging information based on the paging cycle and the offset value.
33. The system as claimed in claim 26, wherein the mobile subscriber station performs the initial ranging, requests the location update by transmitting a location update request to a base station selected by the initial ranging, the location update request containing a mobile subscriber station identifier of the mobile subscriber station and an identifier of a paging zone to which the selected base station belongs, and mode-transits into the idle mode in response to a location update response which is transmitted from the base station in response to the location update request, and the paging zone is a zone grouping a plurality of base stations grouped based on each paging unit.
34. The system as claimed in claim 33, wherein the mobile subscriber station identifier is a medium access control layer address of the mobile subscriber station.
35. A method for determining paging time points for a plurality of mobile subscriber stations by a paging controller when mobile some subscriber stations mode-transits from an awake mode having transmission of traffic into an idle mode having no transmission of traffic from among the plurality of mobile subscriber stations in a broadband wireless access communication system including a base station, the plurality of mobile subscriber stations in a cell controlled by the base station, and the paging controller connected to the base station, the method comprising the steps of:
determining a paging cycle;
determining an offset value in order to differently set time points at which mobile subscriber stations awake; and determining based on the paging cycle and the offset value the time points at which mobile subscriber stations awake.
36. A broadband wireless access communication system comprising:
a base station;
a plurality of mobile subscriber stations in a cell controlled by the base station; and a paging controller for determining paging time points for a plurality of mobile subscriber stations when mobile some subscriber stations mode-transits from an awake mode having transmission of traffic into an idle mode having no transmission of traffic from among the plurality of mobile subscriber stations, determining an offset value in order to differently set time points at which mobile subscriber stations awake, and determining based on a paging cycle and the offset value the time points at which mobile subscriber stations awake.
CA 2556297 2004-03-04 2005-03-04 System and method for controlling an operational mode of a mac layer in a broadband wireless access communication system Active CA2556297C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2760916 CA2760916C (en) 2004-03-04 2005-03-04 A system and method for performing location update

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR20040014753 2004-03-04
KR10-2004-0014753 2004-03-04
PCT/KR2005/000606 WO2005086379A1 (en) 2004-03-04 2005-03-04 System and method for controlling an operational mode of a mac layer in a broadband wireless access communication system

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CA2556297C CA2556297C (en) 2012-02-21

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US (3) US7039430B2 (en)
EP (3) EP2439990B1 (en)
JP (1) JP4468385B2 (en)
KR (1) KR100678145B1 (en)
AP (1) AP2179A (en)
AU (1) AU2005219898B2 (en)
BR (1) BRPI0508406A8 (en)
CA (2) CA2760916C (en)
RU (1) RU2327286C1 (en)
WO (1) WO2005086379A1 (en)
ZA (1) ZA200608267B (en)

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