CN101044767A - A method of dynamically assigning transmission time slot in Abis interface of mobile communication system - Google Patents
A method of dynamically assigning transmission time slot in Abis interface of mobile communication system Download PDFInfo
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- CN101044767A CN101044767A CNA2004800442073A CN200480044207A CN101044767A CN 101044767 A CN101044767 A CN 101044767A CN A2004800442073 A CNA2004800442073 A CN A2004800442073A CN 200480044207 A CN200480044207 A CN 200480044207A CN 101044767 A CN101044767 A CN 101044767A
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- time slot
- attached
- abis interface
- attached time
- standby resources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/06—Hybrid resource partitioning, e.g. channel borrowing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/04—Traffic adaptive resource partitioning
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention discloses a method of dynamically assigning transmission time slot in Abis interface of mobile communication system, which includes the following steps: the Abis interface land circuit of the system making the least time slot as basic unit, and determining the main time slot and standby resource pool, wherein the time slots of standby resource pool are additional time slots; determining the priority level of various services provided by system applying for additional time slots; when certain service of system needs more Abis interface time slots, applying for additional time slots of standby resource pool, and standby resource pool determining whether it provides additional time slots or not based on priority level of the service and condition of standby resource by now; when certain service does not need excessive time slots, releasing said provided additional time slots, and giving back standby resource pool for to use. On the other hand, the present invention provides a device of realizing said method. The use of the present invention can furthest improve utilization ratio of time slot resource of Abis interface and further satisfy the requirement of service.
Description
A kind of method and technology field of the dynamically distributes transmission time slot in the Abis interface of GSM
The present invention relates to a kind of method of the dynamically distributes transmission time slot for different service rates of the Abis interface in mobile communication technology field, more particularly to GSM.Background technology
Communication system plays the effect become more and more important in social life, and people promote developing rapidly for communication system technology, especially GSM for the growth of communication need, from traditional GSM systems to gprs system（General Packet Radio Service, General Packet Radio System）Rapid evolution.In order to provide higher communication bandwidth, the real-time packet service requirement of multiple types is met, has developed EGPRS systems again（Enhance GPRS );On the other hand, due to the continuous growth of GSM customer groups, operator in order to not excessively increase investment on the premise of can provide voice service for more users, demand to HR (Half-Rate) speech business is also more and more, particularly require that system is directed to different periods, FR (Full-Rate) channel can be automatically converted to HR channels to support more channels or more preferable speech quality is provided as FR channels to HR combining channels.
GSM base station sub-systems, the general structure using shown in Fig. 1.In Fig. 1, BSC is base station controller, and BTS is base transceiver station, and CCU is channel encoding unit.The mapping of the land circuit Abis interface between wireless mouth (Um), BTS and BSC is completed by base transceiver station.Gsm system typically uses 16kbit/s circuit time slot for least unit in Abis interface.So in initial gsm system, because the Traffic Channel of wireless mouth is in carry voice traffic or Packet Service, its speed is all without more than 16kbit/s, so wirelessly the 16kbit/s of the channel of mouth and Abis interface time slot is to reflect incoming one by one.But in EGPRS systems, when its is wireless message road is used for Packet Service, the coding of use is different with modulation system, and speed is also different, as shown in table 1.When using MCS-3 9 coded systems of MCS-, it is desirable to which the channel of a wireless mouth corresponds to the time slot of 25 Abis interface.
Table 1
Modulation and Coding Scheme maximum rate
[kbp/s]
MCS-9 59. 2
MCS-8 59. 2
MCS-7 44. 8
MCS-6 29. 6
MCS-5 22. 4
MCS-4 17. 6
MCS-3 14. 8
MCS-2 11. 2
MCS-1 8. 8 is in this regard, solution relatively good at present is, first by a packet traffic channel of wireless mouth and one
The circuit time slot correspondence of Abis interface, a part of time slot is separately taken out from Abis interface as standby resources simultaneously, take out one or more corresponding with this wireless mouth packet traffic channel when more than one Abis interface circuit time slot of bandwidth needed for this Traffic Channel, then from standby resources.For example, number of patent application is
CS-3, CS-4 Packet Service that a kind of 01126612. 0 Chinese patent " universal grouped radio service data frame signal transmitting method " is directed in gprs service are just performed such processing.
The shortcoming of this method is that standby resources are only used for into Packet Service, does not consider utilization of the standby resources in all business.The circuit resource of Abis interface will not only be used in Packet Service, it is often more important that be used when speech business is handled.For gsm system, the purpose of operator is to provide the user with service to greatest extent with limited resource, so the standby resources of Abis interface are considered into distribution according to the real-time needs of all business of system comprehensively, the service efficiency of resource could be improved to greatest extent, preferably meet business demand.
For HR speech businesses, originally a Traffic Channel of wireless mouth can be converted into two support HR Traffic Channel, because actual 8kbit/s bandwidth can just carry HR speech businesses all the way, but the circuit time slot least unit for being due to general Abis interface is 16kbit/s, so supporting HR way at present is：When realizing that wireless mouth supported that a FR Traffic Channel was converted to two Traffic Channels for supporting HR originally, it is desirable to which Abis interface has two time slots；Because the two time slots can only be fixed as used in the two HR speech businesses, greatly wasting Abis interface resource；Simultaneously because standby resources of a part of spare time slot resource of Abis interface as Packet Service, so Abis interface time interval resource is at full stretch, can be converted to HR channel also thus be very restricted.
From described above, because prior art is to all kinds of business, such as speech business and Packet Service, separately consider, cause the defect of its Abis interface time interval resource utilization rate difference.Disclosure of the invention
It is an object of the invention to provide it is a kind of Abis interface spare time slot resource-sharing is gone forward side by side Mobile state distribution method so that more effectively, fully utilize Abis interface resource.
To achieve the above object, Abis interface time interval resource is divided into main time slot and standby resources pond two parts by the present invention, wherein main time slot refers to the single time slot that former wireless port service channel is mapped in Abis interface, standby resources pond refers to the remaining all time slots of Abis interface, and the time slot in standby resources pond is defined as into attached time slot.When system class business needs more multi-slot, whether which kind of business, all unifies to ask to standby resources pond.Wherein, miscellaneous service is set, the request priority of such as speech business and Packet Service allows standby resources pond to meet the demand of each business successively according to the priority of each business.
Based on this, on the one hand, the present invention provides a kind of method of the dynamically distributes transmission time slot in the Abis interface of gsm system, and it comprises the following steps：
Step one, by Abis interface land circuit using minimum time slot as base unit, the wireless port service channel in part is made to set up corresponding relation with part Abis interface time slot, and the time slot is set as main time slot；The time slot that the part or all of free timeslot of Abis interface is set in standby resources pond, the standby resources pond again is attached time slot；
Step 2, when each business of system needs more Abi s interface slots, applies for attached time slot, the standby resources pond decides whether to provide attached time slot according to standby resources situation to the standby resources pond；Step 3, when the business of system no longer needs excessive Abis interface time slot, by the shared attached time slot of release, returns standby resources pond stand-by.
The method according to the invention, the step of between step one and step 2 also including one the attached slot priorities of each business application of system are set；In described step two, when it is determined that providing attached time slot, the standby resources pond further determines to provide the order of attached time slot according to the priority of each business.
The method according to the invention, when simplifying processing, sets the priority of all kinds of attached time slots of business application of system identical.
The method according to the invention, while the attached time slot in the standby resources pond is distributed to a class business by system, the attached time slot is set to the state of " oneself distribution ", and the corresponding relation in wireless message road and Abis mouthfuls of attached time slots is notified into base transceiver station.
The method according to the invention, in the step 3, is set to " unallocated " state when system reclaims the attached time slot discharged, and no longer with this, attached time slot is corresponding is issued to base transceiver station by wireless port service channel.
On the other hand, the present invention provides a kind of device of the distributing slot resources of Abis interface in gsm system,
It includes base station controller, base transceiver station and connection base station controller and base transceiver station
Abis interface, wherein Abis interface are using minimum time slot as base unit；The device also includes, main time slot and standby resources pond determining module, for being main time slot by the Abis interface time slot that corresponding relation is set up with wireless port service channel, and it is attached time slot that remaining free timeslot of the Abis interface, which is the time slot in standby resources pond, the standby resources pond,；Attached time slot request module, for judging whether system class business needs more Abis interface time interval resources, and applies for attached time slot to standby resources pond when needed；Attached time slot provides module, for when each business of system applies for attached time slot to standby resources pond, being determined whether to provide attached time slot according to the situation of standby resources；Attached time slot recycling module, for when the business of system no longer needs excessive Abis interface slots, it will thus provide be recovered to standby resources pond to its attached time slot stand-by.
The apparatus according to the invention, further comprises priority level initializing module, the priority for determining each attached time slot of business application that system is provided；Described attached time slot provides module and is determined to provide the order of attached time slot according to the priority of each business when that can provide attached time slot.
The apparatus according to the invention, when simplifying processing, the priority level initializing for all kinds of attached time slots of business application that the priority level initializing module provides system is identical.
The apparatus according to the invention, the attached time slot provides module while the attached time slot in standby resources pond is distributed into a class business, the attached time slot is set to the state of " distribution ", and notifies the corresponding relation in the wireless message road of base transceiver station and Abis mouthfuls of attached time slots.
The apparatus according to the invention, the attached time slot recycling module is set to " unallocated " state when reclaiming attached time slot, and no longer with this, attached time slot is corresponding is issued to base transceiver station by wireless port service channel.
Because standby resources pond is based on each Abis interface land circuit, so each attached time slot in the standby resources pond of same land circuit dynamically can be used together with the main time slot in this land circuit.
The present invention has the following advantages using after such scheme：
1st, ground resource utilization rate is greatly increased, system requirements is met to greatest extent；
2nd, Abis interface ground resource is shared according to service priority, improves the flexibility of resource-sharing, preferably meet user's request；
The 3rd, as far as possible many HR speech businesses can be provided on the basis of existing hardware.Brief Description Of Drawings
Fig. 1 is the position view of Abis interface in mobile communication system
Fig. 2 the method according to the invention, by taking speech business and Packet Service as an example, illustrates that all kinds of service dynamics use the schematic diagram of attached time slot.
Fig. 3 is the schematic flow sheet that attached time slot is asked from standby resources pond according to Abis interface time-slot resource distribution method in GSM of the present invention.
Fig. 4 is the schematic flow sheet that attached time slot is given back to standby resources pond according to Abis interface time-slot resource distribution method in GSM of the present invention.
Fig. 5 is Abis interface distributing slot resources device block diagram in disclosed GSM.Realize the best mode of the present invention
The present invention is further elaborated below in conjunction with the accompanying drawings.
Fig. 2 is the method according to the invention, by taking speech business and Packet Service as an example, with illustrating all kinds of service dynamics using the schematic diagram of attached time slot.As shown in Figure 2, Abis interface time interval resource is divided into main time slot and standby resources pond, the time slot that voice channel FR, HR channel of wherein wireless mouth is mapped in Abis interface is main time slot A, and remaining free timeslot is present in the A' of standby resources pond as attached time slot.When system class business needs more multi-slot, whether which kind of business, all unifies to ask to standby resources pond A'.When being reached to a certain degree such as voice channel congestion, need to improve voice channel capacity, wirelessly two HR voice channels will be converted to by one FR voice channel of mouth, or for Packet Service, when wireless environment meets transmission quality good condition enough, system determines the corresponding wireless channel of A points to be switched into MCS- 3 and with upper type in use, then asking attached time slot to standby resources pond；Wherein, set miscellaneous service, such as speech business and Packet Service, request priority, standby resources pond is met the demand of each business successively according to the priority of each business.
Fig. 3 is the schematic flow sheet that attached time slot is asked from standby resources pond according to Abis interface time-slot resource distribution method in GSM of the present invention.In Fig. 3, so that a channel needs the increase attached time slot of Abis interfaces as an example, the system of illustrating is how to realize the extension of Abis interface time slot, and it is mainly included the following steps that：
Step S31:The A points of Abis interface are set to main time slot by system in advance, that is, correspond to a wireless channel, and remaining idle time slot is set into standby resources pond；
Step S32:Whether judge certain class business of system needs more Abis interface time slots to provide more services, when being reached to a certain degree such as voice channel congestion, need to improve voice channel capacity, wirelessly two HR voice channels will be converted to by one FR voice channel of mouth, or for Packet Service, passed when wireless environment is met
Transmission quality enough good condition when, system determines that the corresponding wireless channel of A points is switched into MCS-3 and used with upper type, if desired for then performing step S33;
Step S33:To standby resources pond request one or more attached time slot of distribution；
Step S34:Standby resources pond decides whether distribution according to the priority and standby resources idle condition of application, if refusal, and distribution failure, flow terminates；If distribution obtain attached time slot A ' point, perform step S35, its state is set to " distribution ", it is therefore an objective to avoid the time slot from being reassigned by other wireless channels；
Step S36, base station hair receving station, so far whole operation flow normal termination are issued to by the corresponding relation of wireless channel and A, A' point.
Fig. 4 is the schematic flow sheet that attached time slot is given back to standby resources pond according to Abis interface time-slot resource distribution method in GSM of the present invention.In Fig. 4, so that a wireless channel no longer needs the attached time slot of Abis interface as an example, the system of illustrating is how to realize giving back for the attached time slot of Abis interface, and it is mainly included the following steps that：
Step S41:System used main time slot A point and attached time slot A on Abis interface ' point；Step S42:When system class business no longer needs excessive Abis interface time interval resource, after being such as greatly reduced for speech business, or when wireless environment deteriorates, Packet Service using MCS-3 by being encoded and being changed to encode using MCS- 1 or MCS- 2 is encoded above, notice standby resources pond Resource recovery；
Step S43:Standby resources pond reclaim the attached time slot A ' point；
Step S44:By the attached time slot A of recovery ' point state be set to " unallocated " state, it is therefore an objective to the time slot is reassigned by other wireless channels；
Step S45:By wireless port service channel no longer with attached time slot A ' the corresponding relation of point is issued to base transceiver station, so far whole operation flow normal termination.
Fig. 5 gives the block diagram of the most preferred embodiment of the device of Abis interface distributing slot resources in the GSM according to the present invention, wherein, Abis interface 520 is arranged between base station controller 510 and base transceiver station 580, and Abis interface 520 is divided into multiple time slots by base unit of minimum time slot.As illustrated, in the Abis interface distributing slot resources device of the present invention, in addition to：Main time slot and standby resources pond determining module 530, its time slot that the Abis interface 520 of corresponding relation will be set up with wireless port service channel is used as main time slot；And using remaining free timeslot of Abis interface 520 as standby resources pond, the time slot in the standby resources pond is attached time slot.Priority level initializing module 540, the priority for each attached time slot of business application that its determination system is provided, but when simplifying processing, all kinds of business applications that can provide system are attached
The priority level initializing of time slot is identical.Attached time slot request module 550, its judges whether system class business needs more Abis interface time interval resources, and applies for attached time slot to standby resources pond when needed.Attached time slot provides module 560, when each business of system applies for attached time slot to standby resources pond, it determines whether to provide attached time slot according to the situation of standby resources, when it is determined that providing attached time slot, and the priority further according to business determines to provide the order of attached time slot.When attached time slot provides module 560 and the attached time slot in standby resources pond is distributed into a class business, the attached time slot is set to the state of " distribution ", and notify the corresponding relation in the wireless message road of base transceiver station 580 and Abis mouthfuls of attached time slots.Attached time slot recycling module 570, when the business of system no longer needs excessive Abis interface time slot, it is stand-by that the attached time slot for being supplied to it is recovered to standby resources pond by it, and it is set to " unallocated " state, and base transceiver station 580 is issued to by wireless port service channel is no longer corresponding with the attached time slot.
It is exemplified below using the implementation result produced by the method or apparatus of the present invention：
With general site type S3/3/3 (3 cells of i.e. one website, per 3 carrier frequency of cell）, exemplified by speech business and Packet Service, typically configure each cell and support 18 FR voice traffic channels, 4 packet traffic channels, the common fixed allocation of such 3 cells（18+4) * 3=66 Abis interface circuit time slots（16kbit/s), such site type is at least 10 for the Abis interface time slot of control signaling.Total timeslot number that a pair of Abis interface E1 transmission are provided is 128, and clock will synchronously spend 4, so, finally can only having as standby resources：128-66- 10- 4=48.Assuming that 48 free timeslot half fixed allocations are used for HR speech businesses, half is used for Packet Service, then the maximum voice channel of support is 18*3+24=78, and total timeslot number that maximum can be used for Packet Service is 4*3+24=36.And if using the present invention, then free timeslot maximum can all support speech business or Packet Service, the maximum voice channel so supported is 18*3+48=102, and total timeslot number that maximum can be used for Packet Service is
4*3+48-60
Table 2
From table 2 it can be seen that in the case of Abis interface stand-by circuit resource-constrained, inventive algorithm can be directed to the demand of practical business, and resource utilization is improved to a greater extent.
Industrial applicability
Present invention is mainly used in gsm mobile communication system, it is main time slot and standby resources pond by the way that the time interval resource of Abis interface is divided, and make standby resources pond shared and consider distribution comprehensively according to the real-time needs of all business of system, so as to improve the time interval resource utilization rate of Abis interface to greatest extent, the demand of business can be preferably met.
Claims (10)
- Claims1st, a kind of method of the dynamically distributes transmission time slot in the Abis interface of GSM, it is characterised in that comprise the following steps：Step one, by Abis interface land circuit using minimum time slot as base unit, the wireless port service channel in part is made to set up corresponding relation with part Abis interface time slot, and the time slot is set as main time slot；The time slot that the part or all of free timeslot of Abis interface is set in standby resources pond, the standby resources pond again is attached time slot；Step 2, when each business of system needs more Abis interface time slots, applies for attached time slot, the standby resources pond decides whether to provide attached time slot according to standby resources situation to the standby resources pond；Step 3, when the business of system no longer needs excessive Abis interface time slot, by the shared attached time slot of release, returns standby resources pond stand-by.2nd, according to the method described in claim 1, it is characterised in that the step of also including one between step one and step 2 the attached slot priorities of each business application of system are set；In described step two, when it is determined that providing attached time slot, the standby resources pond further determines to provide the order of attached time slot according to the priority of each business.3rd, method according to claim 2, it is characterised in that set the priority of all kinds of attached time slots of business application of system identical.4th, the method according to claim 1,2 or 3, it is characterized in that, while the attached time slot in the standby resources pond is distributed to a class business by system, the attached time slot is set to the state of " oneself distribution ", and the corresponding relation in wireless message road and Abis mouthfuls of attached time slots is notified into base transceiver station.5th, the method according to claim 1,2 or 4, it is characterized in that, in the step 3, " unallocated " state is set to when system reclaims the attached time slot discharged, and no longer with this, attached time slot is corresponding is issued to base transceiver station by wireless port service channel.6th, a kind of device of the dynamically distributes transmission time slot in the Abis interface of GSM, it includes the Abis interface of base station controller, base transceiver station and connection base station controller and base transceiver station, it is characterized in that, the Abis interface is using minimum time slot as base unit, the device also includes, one main time slot and standby resources pond determining module, for being main time slot by the Abis interface time slot that corresponding relation is set up with wireless port service channel；And be that the time slot in standby resources pond, the standby resources pond is attached time slot by remaining free timeslot of the Abis interface； One attached time slot request module, for judging whether system class business needs more Abis interface time interval resources, and applies for attached time slot to standby resources pond when needed；One attached time slot provides module, for when each business of system applies for attached time slot to standby resources pond, being determined whether to provide attached time slot according to the situation of standby resources；One attached time slot recycling module, for when the business of system no longer needs excessive Abis interface slots, it will thus provide be recovered to standby resources pond to its attached time slot stand-by.7th, device according to claim 6, it is characterised in that also including a priority level initializing module, the priority for determining each attached time slot of business application that system is provided；Described attached time slot provides module and is determined to provide the order of attached time slot according to the priority of each business when that can provide attached time slot.8th, device according to claim 7, it is characterised in that the priority level initializing for all kinds of attached time slots of business application that the priority level initializing module provides system is identical.9th, device according to claim 6, it is characterized in that, the attached time slot provides module while the attached time slot in standby resources pond is distributed into a class business, the attached time slot is set to the state of " distribution ", and the corresponding relation in wireless message road and Abis mouthfuls of attached time slots is notified into base transceiver station.10th, device according to claim 6, it is characterised in that the attached time slot recycling module, " unallocated " state is set to when reclaiming attached time slot, and no longer with this, attached time slot is corresponding is issued to base transceiver station by wireless port service channel.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2004/001535 WO2006069470A1 (en) | 2004-12-28 | 2004-12-28 | A METHOD OF DYNAMICALLY ASSIGNING TRANSMISSION TIME SLOT IN Abis INTERFACE OF MOBILE COMMUNICATION SYSTEM |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101044767A true CN101044767A (en) | 2007-09-26 |
| CN100525480C CN100525480C (en) | 2009-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800442073A Expired - Fee Related CN100525480C (en) | 2004-12-28 | 2004-12-28 | A method of dynamically assigning transmission time slot in Abis interface of mobile communication system |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN100525480C (en) |
| BR (1) | BRPI0419252A (en) |
| HK (1) | HK1101313A1 (en) |
| WO (1) | WO2006069470A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103037119A (en) * | 2012-12-11 | 2013-04-10 | 上海顶竹通讯技术有限公司 | Method and device of voice service rapid establishment |
| CN104579764A (en) * | 2014-12-26 | 2015-04-29 | 中国电子科技集团公司第二十研究所 | Dynamic data link resource allocation method based on shared time slot pools |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100446588C (en) * | 2006-08-14 | 2008-12-24 | 华为技术有限公司 | Method and system for sectionalized wireless data-transmission between base station and base station controllers |
| WO2015066918A1 (en) * | 2013-11-11 | 2015-05-14 | 华为技术有限公司 | Method and device for allocating channel and releasing link |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI991118A (en) * | 1999-05-17 | 2000-11-18 | Nokia Networks Oy | Procedure for reserving resources |
| WO2002015621A1 (en) * | 2000-08-04 | 2002-02-21 | Linkair Communications, Inc. | The method of carrying out tcp/ip service within mobile terminal of cdma communication system |
-
2004
- 2004-12-28 CN CNB2004800442073A patent/CN100525480C/en not_active Expired - Fee Related
- 2004-12-28 BR BRPI0419252-4A patent/BRPI0419252A/en not_active IP Right Cessation
- 2004-12-28 WO PCT/CN2004/001535 patent/WO2006069470A1/en active Application Filing
-
2007
- 2007-08-24 HK HK07109219.9A patent/HK1101313A1/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103037119A (en) * | 2012-12-11 | 2013-04-10 | 上海顶竹通讯技术有限公司 | Method and device of voice service rapid establishment |
| CN104579764A (en) * | 2014-12-26 | 2015-04-29 | 中国电子科技集团公司第二十研究所 | Dynamic data link resource allocation method based on shared time slot pools |
Also Published As
| Publication number | Publication date |
|---|---|
| BRPI0419252A (en) | 2007-12-18 |
| HK1101313A1 (en) | 2007-10-12 |
| WO2006069470A1 (en) | 2006-07-06 |
| CN100525480C (en) | 2009-08-05 |
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