GB2407231A - A method of controlling services on a mobile phone network (geran) to avoid using up radio resources - Google Patents
A method of controlling services on a mobile phone network (geran) to avoid using up radio resources Download PDFInfo
- Publication number
- GB2407231A GB2407231A GB0323320A GB0323320A GB2407231A GB 2407231 A GB2407231 A GB 2407231A GB 0323320 A GB0323320 A GB 0323320A GB 0323320 A GB0323320 A GB 0323320A GB 2407231 A GB2407231 A GB 2407231A
- Authority
- GB
- United Kingdom
- Prior art keywords
- network
- message
- mobile station
- network controller
- users
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000004044 response Effects 0.000 claims abstract description 37
- 230000009471 action Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 5
- 230000001413 cellular effect Effects 0.000 description 3
- 230000001934 delay Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000002688 persistence Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- VJYFKVYYMZPMAB-UHFFFAOYSA-N ethoprophos Chemical compound CCCSP(=O)(OCC)SCCC VJYFKVYYMZPMAB-UHFFFAOYSA-N 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
A method of controlling services on a mobile phone network comprises causing a network controller to broadcast a message to all users within a cell on a network requesting a response from users having a specific attribute. Each mobile station which responds to the broadcast sends only an initial message of a standard network contention access procedure directly to the network controller; such that the number of responses may be processed by the network controller without any mobile station identifier being provided to the network controller.
Description
A METHOD OF CONTROLLING SERVICES ON A MOBILE P'lt NINE NETWORK This
invention relates to a method of controlling services or a mobile phone network.
For some cellular radio services the radio access network may 6, required to count the number of users in a cell with a particular attribute or status 'n order to do this, the network sends one or more messages on a downlink channe which can be received by all users in the cell (regardless of whether the network i; an are of their presence) containing the description of the "attribute" for which responses are being sought. All users which receive the downlink message and possess the required attribute respond with an uplink message. Therefore, the network may count the number of these user responses up to a specified (threshold) number.tnd/or for a specified period of time.
One example of a cellular radio system is global system for mobile communications(GSM)/enhanced data rates for GSM evolution (El:)GIE:) radio access network (GERAN), where the users are mobile stations and the specified attribute may be that the mobile station is subscribed to a multicast mode multimedia broadcast/multicast service (MBMS) service. For this MBMS service the network needs to count user responses in each cell to see whether to send multicast data in that cell.
For example, if there are no subscribed users in a cell, the multicast data may not be transmitted in the cell; if there are less than a threshold number of subscribed users in a cell, the multicast data may be transmitted on a point-to-point channel; and, if there are more than a threshold number of subscribed users in a cell, the multicast data may be sent on a point-to-multipoint channel.
Currently, in order for the network to count the number of user" responses, each mobile station would have to perform a standard access request, packet channel request (PCR) message, on an individual basis and be assigned resources, packet uplink assignment message, to send the necessary "response" message on the assigned radio resources.
This access procedure always involves identifying the mobile station, as the access is performed on a contention based channel. The identification procedure consists of sending, on the assigned resource, either a mobile station identifier in the subsequent packet resource request message, or a mobile station identifier in the subsequent user data blocks.
The standard access procedure of resource request, assignment and user identification incurs a minimum of 1.5 round trip delays across the radio interface and also uses up radio resources which could be better used granting access to users wishing to perform normal uplink data transmission.
In accordance with the present invention, a method of controlling services on a mobile phone network comprises causing a network controller to broadcast a message to all users within a cell on a network requesting a response from users having a specific attribute; wherein each mobile station which responds to the broadcast sends only an initial message of a standard network contention access procedure directly to the network controller; such that the number of responses may be processed by the network controller without any mobile station identifier being provided to the network controller.
The present invention provides a more efficient method of assessing the number of users requiring a particular service by using only an initial message of a standard network contention access procedure, so enabling radio resources to be available to other users. The requirement to determine the number of users does not require identification of every user wishing to respond to the MBMS notification, so the prior art procedure of identifying each mobile station is unnecessary. The present invention provides a faster solution and one which is more efficient in terms of radio resource.
A category of response, positive or negative, can also be determined from the initial message, although in general a user which gave a negative response would tend to do this by not responding at all, rather than responding to say they were not interested, in which case only positive responses would be counted. The category of response further assists the network in deciding whether or not to send a multicast message in the cell.
Preferably, the number of responses counted is compared with a predetermined value and the result determines a subsequent action of the network controller.
The basis of the decision can be predefined.
Preferably, if the result exceeds the predetermined value a second message is broadcast to all users.
If the number of users appears to justify provision of the service, a second message is sent.
Preferably, the network controller causes a response timer setting at the mobile station to be recalculated to modify the time after which the mobile station retransmits its initial message, such that the,network controls the interval at which messages are retransmitted or prevents messages being transmitted more than once.
Preferably, the network is GERAN.
Preferably, the initial message comprises a legacy channel request, PCR or enhanced general packet radio service (EGPRS) PCR message with modified content to distinguish it from a standard access request.
Preferably, the specific attribute is that the mobile station is subscribed to a multicast mode MBMS service.
The second message may be a broadcast, but preferably, the second message advises all mobile stations of the location of data available for downloading to each mobile station subsequently.
An example of a method of controlling services on a mobile phone network in accordance with the present invention will now be described with reference to the accompanying drawings in which: Figure 1 illustrates a conventional mobile initiated access procedure; and, Figure 2 illustrates a method of controlling services on a mobile phone network in accordance with the present invention For the purpose of these examples, the cellular radio system described is GERAN and the users are mobile stations. A chosen specified attribute is that the mobile station is subscribed to a multicast mode MBMS service. For this MBMS multicast service the network needs to count user responses in each cell to see whether to send the multicast data in that cell. The decision on whether to send multicast data may be dependent on various criteria. For example, whether there are any subscribed users in a cell; whether there are less than a threshold number of subscribed users in a cell; and whether there are more than a threshold number of subscribed users in a cell.
If there are no subscribed users then the network can choose that the multicast data is not transmitted in the cell; if there are less than a threshold number of subscribed users in a cell, then the multicast data can be transmitted on a point-to-point channel; and if there are more than a threshold number of subscribed users in a cell, then the multicast data can be sent on a point-to-multipoint channel. Different criteria and different consequences can be set according to the network operation. To count the number of users having a particular attribute, a downlink "notification" message is not defined and an uplink "response" message is one of channel request, PCR or EGPRS PCR.
In a conventional procedure, if the network needs to count the number of user responses as described above, each mobile station (MS) has to perform a standard access request, PCR message, on an individual basis and be assigned resources, packet uplink assignment message, to send the necessary "response" message on the assigned radio resources. Fig. 1 illustrates this procedure. A network 1 sends a paging or notification message 2 using a downlink common control channel, e.g. packet broadcast control channel PBCCH to all mobiles in a call. Each mobile station 3 replies on an uplink common control channel, e.g. packet random access channel (PRACH), to give an initial response message 4 without an MS identifier e. g. PCR, indicating a normal access procedure request. The network then sends a resource assignment message 5 using the downlink common control channel, e.g. packet access grant channel (PAGCH). This example is given for packet data services, but use of packets is optional, i.e. the channel could be AGCH. The MS then sends a second response message 6 (e.g. an MBMS response) containing the MS identifier and the network 1 uses the downlink common control channel, e.g. PAGCH, to send a resource assignment message 7 for multiple mobiles e.g. MBMS resource assignment.
Fig. 2 illustrates the method of the present invention. Here, the network 1 sends out a paging or notification message 2 as before to all mobile stations. Each mobile station which wishes to reply, then sends a unique message 8 indicating an MBMS response. This is sent on the uplink contention-based control channel to inform the network that the mobile station is responding to the MBMS notification/paging from the network and is not performing the usual access procedure. Mobile stations which send this type of response will not be expecting resources to be assigned, but will wait for an acknowledgement from the network, which can be the resource assignment message 7. The network can, for example, indicate either the start of the multicast transmission or the termination of the "response gathering" time as its acknowledgement to each mobile, but it does not need to direct this to any particular mobile to have its effect. In this way the conventional access procedure is circumvented and advantages are gained in reduced signalling delay and reduced resource usage.
The scenario of attempting to identify the number of users in a cell having a particular attribute or status does not require identification of every user wishing to respond to the MBMS notification. The present invention achieves a faster and more radio resource efficient solution, without including this unnecessary part of the procedure.
The procedure of the present invention allows the network to count up to a threshold number of mobile stations in a cell which respond to the MBMS notification/paging message. The network can manage the "response gathering" time by transmitting an acknowledgement to terminate this period, or by re-sending the notification message to ask for users to repeat their responses.
In GPRS today, mobile stations on a contention-based uplink control channel, such as random access channel (RACH) or packet RACH, must wait for a random, uniformly distributed, delay period before attempting to retransmit. For a mobile station requesting uplink data transmission, this delay period is calculated by the network according to the acceptable delays that can be tolerated in general by uplink data transmissions. Currently there is no consideration given to an uplink message on the (P)RACH which is not for the reason of initiating an uplink data transmission as it was not a realistic scenario prior to the introduction of MBMS.
One solution is that an access persistence control mechanism is modified to enable this counting process to be completed whilst reducing the probability that the common uplink control channel will experience overload from retransmissions of the mobile stations' MBMS response messages. This can be done through modifying the broadcast information carrying these parameters, through assigning fixed values to the mobile stations or by commanding the mobile station to recalculate the MBMS response timer values using the broadcast information as an input value.
One approach is to circumvent the normal access mechanism, thereby not assigning uplink resources to the mobile station in the normal way, but noting and incrementing the count of the number of responses from mobile stations in a cell.
The means by which this is done is by modifying the contents of the legacy channel request, PCR and EGPRS PCR messages in order to distinguish the MBMS response from a normal access procedure.
Another approach is to modify the retransmit timer in the mobile used for access persistence control in order to avoid overloading the (P)RACH during the "response gathering" period. This enables the mobile station's retransmission timer to be adjusted to suit the length of time for which the network wishes to collect user responses.
Claims (8)
1. A method of controlling services on a mobile phone network, the method comprising causing a network controller to broadcast a message to all users within a cell on a network requesting a response from users having a specific attribute; wherein each mobile station which responds to the broadcast sends only an initial message of a standard network contention access procedure directly to the network controller; such that the number of responses may be processed by the network controller without any mobile station identifier being provided to the network controller.
2. A method according to claim 1, wherein the number of responses counted is compared with a predetermined value and the result determines a subsequent action of the network controller.
3. A method according to claim 2, wherein if the result exceeds the predetermined value a second message is broadcast to all users.
4. A method according to any preceding claim, wherein the network controller causes a response timer setting at the mobile station to be recalculated to modify the time after which the mobile station retransmits its initial message, such that the network controls the interval at which messages are retransmitted or prevents messages being transmitted more than once.
5. A method according to any preceding claim, wherein the network is GERAN.
6. A method according to any preceding claim, wherein the initial message comprises a legacy CHANNEL REQUEST, PACKET CHANNEL REQUEST or EGPRS PACKET CHANNEL REQUEST message with modified content to distinguish it from a standard access request.
7. A method according to any preceding claim, wherein the specific attribute is that the mobile station is subscribed to a multicast mode MBMS service.
8. A method according to at least claim 3, wherein the second message advises all mobile stations of the location of data available for downloading to each mobile station subsequently.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PT03782629T PT1574104E (en) | 2002-12-19 | 2003-12-16 | A method of controlling services on a mobile phone network |
BR0317526-0A BR0317526A (en) | 2002-12-19 | 2003-12-16 | Process of controlling services on a mobile phone network |
EP03782629A EP1574104B1 (en) | 2002-12-19 | 2003-12-16 | A method of controlling services on a mobile phone network |
DE60308220T DE60308220D1 (en) | 2002-12-19 | 2003-12-16 | METHOD FOR CONTROLLING SERVICES IN A MOBILE NETWORK NETWORK |
AU2003290265A AU2003290265A1 (en) | 2002-12-19 | 2003-12-16 | A method of controlling services on a mobile phone network |
AT03782629T ATE339072T1 (en) | 2002-12-19 | 2003-12-16 | METHOD FOR CONTROLLING SERVICES IN A MOBILE TELEPHONE NETWORK |
PCT/GB2003/005466 WO2004057898A1 (en) | 2002-12-19 | 2003-12-16 | A method of controlling services on a mobile phone network |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0229450.2A GB0229450D0 (en) | 2002-12-19 | 2002-12-19 | A method of controlling services on a mobile phone network |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0323320D0 GB0323320D0 (en) | 2003-11-05 |
GB2407231A true GB2407231A (en) | 2005-04-20 |
GB2407231B GB2407231B (en) | 2006-06-07 |
Family
ID=9949889
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GBGB0229450.2A Ceased GB0229450D0 (en) | 2002-12-19 | 2002-12-19 | A method of controlling services on a mobile phone network |
GB0323320A Expired - Fee Related GB2407231B (en) | 2002-12-19 | 2003-10-06 | A method of controlling services on a mobile phone network |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GBGB0229450.2A Ceased GB0229450D0 (en) | 2002-12-19 | 2002-12-19 | A method of controlling services on a mobile phone network |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN100459784C (en) |
GB (2) | GB0229450D0 (en) |
PT (1) | PT1574104E (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9391735B2 (en) | 2006-10-10 | 2016-07-12 | Interdigital Technology Corporation | Method and apparatus for sending feedback for a downlink shared service and estimating a number of wireless transmit/receive units |
US9439192B2 (en) | 2006-10-10 | 2016-09-06 | Interdigital Technology Corporation | Method and apparatus for sending feedback for a downlink shared service transmitted to a plurality of wireless transmit/receive units |
Citations (6)
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US5339317A (en) * | 1991-08-28 | 1994-08-16 | Matsushita Electric Industrial Co., Ltd. | Packet communications network and communications method |
EP0632618A1 (en) * | 1993-06-30 | 1995-01-04 | Harris Corporation | Multi-master supervisory system |
US5862206A (en) * | 1996-09-12 | 1999-01-19 | Cabletron Systems, Inc. | Method and apparatus for performing raw cell status report frequency mitigation on transmit in a network node |
US6212567B1 (en) * | 1996-09-12 | 2001-04-03 | Compaq Computer Corporation | Method and apparatus for performing raw cell status report frequency mitigation on receive in a network node |
WO2001063952A1 (en) * | 2000-02-22 | 2001-08-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Cell status messaging in a radio communications system |
GB2371183A (en) * | 2000-11-02 | 2002-07-17 | Lg Electronics Inc | Managing a cell resource in a mobile communication system to carry out radio resource management between base and control stations |
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JP2595965B2 (en) * | 1987-05-11 | 1997-04-02 | 株式会社日立製作所 | Broadcast communication system |
US5297144A (en) * | 1991-01-22 | 1994-03-22 | Spectrix Corporation | Reservation-based polling protocol for a wireless data communications network |
US6925068B1 (en) * | 1999-05-21 | 2005-08-02 | Wi-Lan, Inc. | Method and apparatus for allocating bandwidth in a wireless communication system |
GB0012410D0 (en) * | 2000-05-23 | 2000-07-12 | Koninkl Philips Electronics Nv | Radio system and apparatus for, and method of, multicast communication |
DE10038256B4 (en) * | 2000-08-04 | 2007-03-22 | Siemens Ag | Access methods in communication systems with different performance classes and communication system |
US7050459B2 (en) * | 2000-09-18 | 2006-05-23 | Sharp Laboratories Of America, Inc. | Devices, methods and software for centralized session planning while in a DCF mode |
US6804528B1 (en) * | 2000-11-03 | 2004-10-12 | Lucent Technologies, Inc. | Apparatus and method for use in the multicast of traffic data in wireless multiple access communications systems |
-
2002
- 2002-12-19 GB GBGB0229450.2A patent/GB0229450D0/en not_active Ceased
-
2003
- 2003-10-06 GB GB0323320A patent/GB2407231B/en not_active Expired - Fee Related
- 2003-12-16 PT PT03782629T patent/PT1574104E/en unknown
- 2003-12-16 CN CNB2003801065605A patent/CN100459784C/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5339317A (en) * | 1991-08-28 | 1994-08-16 | Matsushita Electric Industrial Co., Ltd. | Packet communications network and communications method |
EP0632618A1 (en) * | 1993-06-30 | 1995-01-04 | Harris Corporation | Multi-master supervisory system |
US5862206A (en) * | 1996-09-12 | 1999-01-19 | Cabletron Systems, Inc. | Method and apparatus for performing raw cell status report frequency mitigation on transmit in a network node |
US6212567B1 (en) * | 1996-09-12 | 2001-04-03 | Compaq Computer Corporation | Method and apparatus for performing raw cell status report frequency mitigation on receive in a network node |
WO2001063952A1 (en) * | 2000-02-22 | 2001-08-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Cell status messaging in a radio communications system |
GB2371183A (en) * | 2000-11-02 | 2002-07-17 | Lg Electronics Inc | Managing a cell resource in a mobile communication system to carry out radio resource management between base and control stations |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9391735B2 (en) | 2006-10-10 | 2016-07-12 | Interdigital Technology Corporation | Method and apparatus for sending feedback for a downlink shared service and estimating a number of wireless transmit/receive units |
US9439192B2 (en) | 2006-10-10 | 2016-09-06 | Interdigital Technology Corporation | Method and apparatus for sending feedback for a downlink shared service transmitted to a plurality of wireless transmit/receive units |
US9913275B2 (en) | 2006-10-10 | 2018-03-06 | Interdigital Technology Corporation | Method and apparatus for sending feedback for a downlink shared service transmitted to a plurality of wireless transmit/receive units |
Also Published As
Publication number | Publication date |
---|---|
GB0229450D0 (en) | 2003-01-22 |
CN1732704A (en) | 2006-02-08 |
PT1574104E (en) | 2006-12-29 |
GB0323320D0 (en) | 2003-11-05 |
GB2407231B (en) | 2006-06-07 |
CN100459784C (en) | 2009-02-04 |
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Legal Events
Date | Code | Title | Description |
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COOA | Change in applicant's name or ownership of the application |
Owner name: SIEMENS AKTIENGESELLSCHAFT Free format text: FORMER APPLICANT(S): ROKE MANOR RESEARCH LIMITED |
|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20071006 |