CN1391741A - Inter-frequency measurement - Google Patents
Inter-frequency measurement Download PDFInfo
- Publication number
- CN1391741A CN1391741A CN00815967A CN00815967A CN1391741A CN 1391741 A CN1391741 A CN 1391741A CN 00815967 A CN00815967 A CN 00815967A CN 00815967 A CN00815967 A CN 00815967A CN 1391741 A CN1391741 A CN 1391741A
- Authority
- CN
- China
- Prior art keywords
- spread spectrum
- channel data
- predetermined frame
- radio telephone
- channel
- 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.)
- Pending
Links
- 238000005259 measurement Methods 0.000 title abstract description 9
- 238000004891 communication Methods 0.000 claims abstract description 41
- 238000001228 spectrum Methods 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 8
- 241001269238 Data Species 0.000 claims description 5
- 238000012546 transfer Methods 0.000 description 4
- 230000032258 transport Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- 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
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/06—Reselecting a communication resource in the serving access point
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
- H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
-
- 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
Abstract
A spread spectrum communication network having a common channel, the channel comprising a plurality of frames for containing access channel data and paging channel data for communication to a plurality of radiotelephones, the spread spectrum communication network comprising a controller arranged to omit access channel data from a predetermined frame of the common channel to allow a radiotelephone to perform an inter-frequency measurement during the predetermined frame.
Description
The present invention relates to be used in the spread spectrum communication system Data transmission so that allow the apparatus and method of different-frequency measure.
Multi-address communication system allows a large number of users to set up radio communication channel on relatively limited frequency spectrum.A kind of multi-address communication system that becomes more and more important is the spread spectrum multiple access telecommunication system, is called code division multiple access (CDMA) again.
Multiple access in the cdma system is by for each user in the system distributes pseudo noise code to realize, wherein, the pseudo noise code of being distributed has good auto-correlation and their cross correlation.In use, with user's bit rates signals the pseudo noise code of being distributed is modulated.The bandwidth of bandwidth ratio user's bit rates signals of modulation signal that combines pseudo noise code is much bigger, thereby the relative narrow band signal of user is expanded to wideband spread-spectrum signal.
In case the receiver of appointment is received described broadband signal, then utilize original pseudo noise code to this signal " despreading ", thereby this signal is converted to narrow band signal again.
Therefore, in cdma communication system, can distribute to each cell that constitutes communication system to single wide band radio-frequency, wherein, the spreading code of a plurality of unique frequency spectrums is assigned to each district.Like this, can multiplexed number of users be together mainly transmitted the restriction of the interference size that produced rather than available radio-frequency channel.
But, sometimes, need more than one broadband wireless channel in the CDMA Cellular System.For example, different operators may distribute different frequency bands, and perhaps certain operator has the broadband wireless channel of a plurality of different frequencies, so that support the different business amount of zones of different.The number of users of down town is probably greater than the suburb.In order to hold this bigger number, can distribute more than one wideband CDMA frequency, wherein each CDMA frequency has its oneself unique code character.Fig. 1 represents four wireless zone a to d, and wherein, regional a is by two frequency supports, and regional b is by three frequency supports, and regional c is by two frequency supports, and regional d is by a frequency support.The frequency number that is distributed depends on the traffic carrying capacity that this is regional.
Therefore, in cdma communication system, move to another district from a district, then may need to redistribute certain new frequency for this radio telephone if on certain characteristic frequency, set up the radio telephone of communication link.
Another example of floored community shown in Fig. 2, it comprises the macrocell 16 that contains Microcell 18, and macrocell 16 has and is operated in a base station 17 on the frequency, and Microcell 18 has the base station 19 on another frequency that is operated in the frequency that is different from base station 17.Microcell can be office's cdma communication net for example.In this example, if radio telephone 20 has been set up and base station 17 between communication link, radio telephone 20 may need to carry out different-frequency measure (that is, measuring the intensity of the signal of launching on different frequency), so that determine whether carry out the switching of base station 19.
In case between radio telephone and base station, set up communication link in the cdma system, then usually had from the base station to wireless telephonic continuous down link.Therefore, if radio telephone will be carried out different-frequency measure, then radio receiver need be transferred on another frequency, and this may cause loss of data.This may be that the user is unacceptable.A kind of method that overcomes this problem is to use double-receiver, and one of them receiver is used for carrying out different-frequency measure, and another receiver is used for receiving data from the communication link of setting up.But radio telephone may not have two or more receivers, and perhaps, radio telephone may only can use second receiver to carry out receiver antenna diversity and measure.
Expectation can improve this situation.
According to a first aspect of the present invention, a kind of spread spectrum communication network is provided, it has common signal channel, this channel comprises a plurality of frames, be used to hold and be delivered to a plurality of wireless telephonic access channel datas and paging channel data, spread spectrum communication network comprises controller, and this controller is configured to save access channel data from the predetermined frame of common signal channel, so that make radio telephone can carry out different-frequency measure during predetermined frame.
By save access channel data from the predetermined frame of common signal channel, this has the following advantages: making to enter needs continuously the radio telephone of the pattern of reception access channel data can carry out different-frequency measure during predetermined frame and not lose any access channel data.
Preferably be attached to predetermined frame being used for wireless telephonic paging channel data, its middle controller responds to the radio telephone that enters preassigned pattern, saves to be used for this wireless telephonic access channel data from predetermined frame.
This has following advantage: thus make enter need to receive continuously access channel data not the radio telephone of the pattern of paging receiving message can in wireless telephonic appointment paging frame, carry out different-frequency measure, and do not lose any access channel data.
The preferably continuous forward access channel pattern of described preassigned pattern.
According to a second aspect of the present invention, a kind of spread spectrum radio phone of working at the spread spectrum communication network with common signal channel of being used for is provided, described channel comprises a plurality of frames, be used to hold and be delivered to a plurality of wireless telephonic access channel datas and paging channel data, wherein, save access channel data from predetermined frame, this radio telephone comprises controller, arranges this controller to carry out different-frequency measure during predetermined frame.
According to a third aspect of the present invention, thereby provide a kind of in spread spectrum communication network Data transmission allow the method for different-frequency measure, this method comprises: transmit common signal channel to a plurality of radio telephones, described common signal channel has a plurality of frames, is used to hold access channel data and paging channel data; Access channel data is saved in arrangement from predetermined frame, thereby makes radio telephone can carry out different-frequency measure during predetermined frame.
In order to understand the present invention better and to understand how to realize the present invention, only by way of example with reference to the following drawings, wherein:
Fig. 1 is the regional structure figure of spread spectrum communication system;
The spread spectrum communication system of grand/Microcell layering that Fig. 2 illustrates;
Fig. 3 is the schematic diagram according to cdma communication system of the present invention;
Fig. 4 illustrates the frame structure of CDMA physical channel.
Following examples are with reference to " (the 3 for third generation CDMA partnership projects
ThGenerationCDMA Partnership Project) " standard to describe, but the present invention also can be applied to other CDMA standards.
Wideband CDMA (WCDMA) communication system comprises WCDMA network and relevant radio telephone, and between is set up communication channel.The cdma communication system that Fig. 3 represents to have single radio words 1 and possesses the cdma network of two base stations 8,12.Generally, the WCDMA communication system has a plurality of radio telephones, but in order to describe the present invention, present embodiment is only talked about with reference to single radio and described.
The structure of base station 12 and base station 8 are similar, and base station 12 has antenna 15, transceiver 14 and processor 13.
Radio telephone 1 has antenna 7, transceiver 6, controller 5, microphone 3, keypad 2 and loud speaker 4.Antenna 7 is coupled with the input and the output of transceiver 6.Transceiver 6 is connected to controller 5.Controller 5 is connected to microphone 3, keypad 2 and loud speaker 4.
Transceiver 6 comprises transmitter 6a, receiver 6b and signal measurement apparatus 6c.Transceiver 6 is transformed into the RF signal to base band data by transmitter 6a, so that send through antenna 7, and the RF signal that receives through antenna 7 is transformed into base band data by receiver 6b.Arrange signal measurement apparatus 6c to measure the signal power of the RF signal that is received.
Controller 5 is handled the base band data that receives and send.The sequential of controller 5 control transceivers 6, and be the data specified circuit between microphone 3 and the transceiver 6 and between transceiver 6 and loud speaker 4 by.Keypad 2 provides the interface between user and the controller 5, so that wireless telephonic user can be sent and receipt of call.
Between radio telephone 1 and base station 8,12, set up communication link through the CDMA physical channel.Physical channel is the communication channel with unique frequencies and spreading code, and transfer channel shines upon thereon.
Physical channel is made up of three-decker, i.e. superframe 21, frame 22 and time slot 23, as shown in Figure 4.Superframe 21 has 720 milliseconds duration and is made up of 72 frames 22.Frame 22 has 10 milliseconds duration, and is made up of 16 time slots 23.Time slot 23 comprises information symbol, and wherein the number of symbols of every time slot depends on physical channel.
Physical channel is divided into dedicated uplink channels, common uplink physical channel, private downlink physical channel and common downlink physical channel.
The common downlink physical channel comprises main Common Control Physical Channel (PCCPCH), Secondary Common Control Physical Channel (SCCPCH) and synchronizing channel (SCH).
The common uplink physical channel comprises Physical Random Access Channel (PRACH).
Described in " third generation partnership projects " standard TS 25.211, various transfer channels on physical channel, have been shone upon.These transfer channels hold be used for the data transmitted between each user in systems.Transfer channel is classified as two groups, i.e. common signal channel and dedicated channel.Common transmission channel is mapped on the public physic channel, and wherein common transmission channel uses identification in the band when being the particular wireless telephone addressing.Dedicated transport channel is mapped on the DPCH, wherein, and with physical channel, be that code and frequency are discerned and received radio telephone 1.
On PCCPCH, shone upon broadcast control transport channel (BCCH).BCCH is the down link that points to multidrop channel, comprises broadcast system and sub-district appointed information (for example, PRACH sign indicating number).
Forward access channel (FACH) and paging channel (PCH) on SCCPCH, have been shone upon.FACH is a down channel, is used for when network is known wireless telephonic location cell, transports control information to radio telephone.FACH can also hold packet, and when receiving radio telephone and be in continuous FACH pattern, FACH can be used for data and transmits.In continuous FACH pattern, radio telephone 1 continuous monitoring FACH channel is so that find the grouped data that base station 8,12 intermittently sends.
PCH is a down channel, and certain calls out the control information of waiting for radio telephone 1 to be used for transporting expression to radio telephone 1.In order to improve the efficient of the radio telephone 1 that call identifying waits for, registered radio telephone is placed in the paging group in network.For each paging group is distributed a particular frame (being paging frame), wherein can distribute identical particular frame for a plurality of paging groups.Paging frame comprises and is used to be assigned to the wireless telephonic paging information of specifying paging group.
Perhaps, base station controller 9,13 is configured to the transmission of continuous FACH data and PCH data and arranges the time, and guarantees to save continuous FACH data from designated frame (for example frame 1).This alternative also provides 10ms the period for radio telephone, in this period, when radio telephone 1 is in continuous FACH pattern, carries out different-frequency measure and does not lose the risk of FACH data.
SCH is a down channel, comprise make radio telephone 1 can with the Network Synchronization data of Network Synchronization.Therefore, base station 8,12 can constantly send synchrodata.
Shone upon Random Access Channel (RACH) on the up link PRACH.RACH is a up channel, is used to carry from radio telephone 1 control information of 8,12 to the base station.
When radio telephone 1 was at first started shooting, its initialization and register in network with SCH was so that obtain with the strongest base station 8,12 synchronously.In case occur synchronously, radio telephone 1 just detects PCCPCH, reads the specific BCCH information in this system and sub-district.From BCCH, radio telephone 1 obtains the PRACH sign indicating number, and this allows radio telephone 1 to send request to base station 8,12, and request allows radio telephone to send calling.Radio telephone 1 also determines by BCCH which paging group it has been assigned to, thereby determines which frame can comprise the paging information that is used for radio telephone 1.
In this embodiment, base station 8 support area b, and base station 12 support area c, as shown in Figure 1.At first, radio telephone 1 is started shooting in regional b and to base station 8 registration, as mentioned above, and is dispensed on the channel frequency 3 and works.
Radio telephone 1 needs to determine the transmitting power of transmitter 6a.Radio telephone 1 realizes that this point is the path loss by estimation up link from the measurement result of the base station power that received, and use this path loss estimated value, the target that receives interference level and received signal-to-interference ratio together with up link decides described transmitting power.
If for example the user wants to send calling, this needs radio telephone 1 to enter continuous FACH pattern, and then radio telephone 1 sends random accessing message to base station 8 on PRACH.
In case receive random accessing message, base station 8 responds with access grant message on FACH.
In case receive access grant message, radio telephone 1 just enters continuous FACH pattern, and scanning SCCPCH is to find data.In case base station 8 receives the grouped data at radio telephone 1 of automatic network the opposing party (not shown), base station 8 just sends data on the FACH channel, utilizes in-band signalling to give radio telephone 1 with data.
Perhaps, communication network can indicate when and where send grouped data (channel logo and emission cycle promptly are provided) to radio telephone with continuous FACH pattern.For example, access channel data can indicate: send grouped data on different common signal channels; Perhaps set up dedicated channel.In this embodiment, indicating the access channel data that when and where sends grouped data is not bonded in each paging frame.
As mentioned above, setting up under the situation about being connected between radio telephone 1 and the base station 8, for example,, then may need to carry out the switching of another base station if radio telephone 1 begins to leave regional b.If radio telephone 1 moves to regional c, just need carry out the switching of base station 12, because can become too weak and can't keep connection from the signal of base station 8.But, because base station 12 is not to be operated on the frequency identical with the channel 3 of base station 8, therefore, radio telephone 1 keep with being connected of base station 8 in, radio telephone 1 is necessary to carry out different-frequency measure, thereby determines the intensity of the signal that send base station 12.
In order to determine whether connection should switch to another zone, the signal measurement apparatus 6c in the transceiver 6 of radio telephone 1 measure with base station 8 between the existing signal strength signal intensity that is connected.Then, need the signal strength signal intensity in other districts of measurement can receive stronger signal so that determine whether.
In order to carry out different-frequency measure, during predetermined frame (being paging frame or designated frame), radiophone controller 5 indication transceivers 6 are transferred on the frequency of another CDMA Channel.In this example, radio telephone 1 is transferred on the channel 2 in regional c.
Signal measurement apparatus 6c is in the signal strength signal intensity of predetermined frame measured channel 2 in the cycle of 10ms.Before receiving new frame, radiophone controller 5 indication transceivers 6 are transferred to initial channel 3, to avoid the FACH loss of data.
According to the signal measurement result who measures, controller 5 determines whether to switch to another channel.
It should be appreciated by those skilled in the art that the present invention also is applicable to radio telephone 1 and sends calling.
The present invention can comprise here clearly or impliedly disclosed any novel feature or combination of features or its any generalization, no matter and whether it relates to desired this invention or whether alleviate any one or whole issue in the described problem.In view of foregoing description, to one skilled in the art, obviously can make various modifications within the scope of the invention.For example, having the wireless channel of different frequency can be in different communication network.
Claims (11)
1. spread spectrum communication network, it has common signal channel, described channel comprises and is used to hold a plurality of frames that will be delivered to a plurality of wireless telephonic access channel datas and paging channel data, described spread spectrum communication network comprises controller, this controller is configured to save access channel data from the predetermined frame of described common signal channel, so that make radio telephone carry out different-frequency measure during described predetermined frame.
2. spread spectrum communication network, it has common signal channel, described channel comprises and is used to hold a plurality of frames that will be delivered to a plurality of wireless telephonic access channel datas and paging channel data, describedly be used for wireless telephonic paging channel data and be incorporated into predetermined frame, described spread spectrum communication network comprises controller, this controller responds to the radio telephone that enters preassigned pattern, from described predetermined frame, save and be used for this wireless telephonic access channel data, thereby make described radio telephone during described predetermined frame, carry out different-frequency measure.
3. spread spectrum communication network as claimed in claim 2 is characterized in that: described preassigned pattern is continuous forward access channel pattern.
4. as claim 2 or 3 described spread spectrum communication networks, it is characterized in that: described a plurality of radio telephones are arranged in each paging group, and the described paging channel data that are used for paging group are incorporated into predetermined frame.
5. as any one described spread spectrum communication network in the claim 2 to 4, it is characterized in that: identification information in described access channel data and the paging channel data combined belt, so that identification receives radio telephone.
One kind in fact as the subsidiary explanation of above reference respectively scheme described spread spectrum communication network.
7. one kind is used for the spread spectrum radio phone of working at the spread spectrum communication network with common signal channel, described channel comprises and is used to hold a plurality of frames that will be delivered to a plurality of wireless telephonic access channel datas and paging channel data, wherein, from predetermined frame, save access channel data, described radio telephone comprises controller, and this controller is configured to carry out different-frequency measure during described predetermined frame.
One kind in fact as the subsidiary explanation of above reference respectively scheme described spread spectrum radio phone.
One kind Data transmission is to allow the method for different-frequency measure in spread spectrum communication network, this method comprises: transmit common signal channels to a plurality of radio telephones, described common signal channel has a plurality of frames that are used to hold access channel data and paging channel data; Access channel data is saved in arrangement from predetermined frame, thereby makes radio telephone carry out different-frequency measure during described predetermined frame.
One kind in spread spectrum communication network Data transmission to allow the method for different-frequency measure, this method comprises: transmit common signal channel to a plurality of radio telephones, described common signal channel has a plurality of frames that are used to hold access channel data and paging channel data, wherein is used for wireless telephonic paging channel data and is incorporated into predetermined frame; Arrangement responds to the radio telephone that enters preassigned pattern, saves to be used for this wireless telephonic access channel data from described predetermined frame, thereby makes described radio telephone carry out different-frequency measure during described predetermined frame.
11. one kind in fact as the subsidiary explanation of above reference respectively scheme described method.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9922737.3 | 1999-09-24 | ||
| GB9922737A GB2354671B (en) | 1999-09-24 | 1999-09-24 | Inter-frequency measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1391741A true CN1391741A (en) | 2003-01-15 |
Family
ID=10861612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00815967A Pending CN1391741A (en) | 1999-09-24 | 2000-09-21 | Inter-frequency measurement |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1224758A1 (en) |
| JP (1) | JP2003510955A (en) |
| CN (1) | CN1391741A (en) |
| AU (1) | AU7521600A (en) |
| GB (1) | GB2354671B (en) |
| WO (1) | WO2001024417A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008022603A1 (en) * | 2006-08-18 | 2008-02-28 | Huawei Technologies Co., Ltd. | Method and apparatus for realizing inter-frequency measurement |
| CN101400127B (en) * | 2007-09-26 | 2014-05-28 | 电信科学技术研究院 | Method and system implementing scheduling measurement |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6741587B2 (en) | 2002-04-02 | 2004-05-25 | Nokia Corporation | Inter-frequency measurements with MIMO terminals |
| DE60303837T2 (en) * | 2003-05-12 | 2006-08-17 | Matsushita Electric Industrial Co., Ltd., Kadoma | Method and apparatus for transmitting layers for scalable data services |
| US6970713B2 (en) | 2003-07-09 | 2005-11-29 | Interdigital Technology Corporation | Method and system wherein timeslots allocated for common control channels may be reused for user traffic |
| KR101216072B1 (en) * | 2006-01-03 | 2012-12-26 | 엘지전자 주식회사 | Method of supporting inter-frequency measurement in mobile communications system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW306102B (en) * | 1993-06-14 | 1997-05-21 | Ericsson Telefon Ab L M | |
| US6078570A (en) * | 1997-08-21 | 2000-06-20 | Nokia Mobile Phones Limited | Mobile assisted hard hand-off for a code division multiple access (CDMA) system |
| KR100252932B1 (en) * | 1997-11-06 | 2000-04-15 | 서평원 | Method and System for Providing a Inter-frequency Handoff in a CDMA Cellular Telephone System |
| GB2336071A (en) * | 1998-03-28 | 1999-10-06 | Philips Electronics Nv | Null periods in a communication channel allow scanning for alternative handover channel |
| US6865173B1 (en) * | 1998-07-13 | 2005-03-08 | Infineon Technologies North America Corp. | Method and apparatus for performing an interfrequency search |
-
1999
- 1999-09-24 GB GB9922737A patent/GB2354671B/en not_active Expired - Fee Related
-
2000
- 2000-09-21 WO PCT/EP2000/009225 patent/WO2001024417A1/en not_active Application Discontinuation
- 2000-09-21 EP EP00964216A patent/EP1224758A1/en not_active Withdrawn
- 2000-09-21 CN CN00815967A patent/CN1391741A/en active Pending
- 2000-09-21 AU AU75216/00A patent/AU7521600A/en not_active Abandoned
- 2000-09-21 JP JP2001527480A patent/JP2003510955A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008022603A1 (en) * | 2006-08-18 | 2008-02-28 | Huawei Technologies Co., Ltd. | Method and apparatus for realizing inter-frequency measurement |
| CN101400127B (en) * | 2007-09-26 | 2014-05-28 | 电信科学技术研究院 | Method and system implementing scheduling measurement |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9922737D0 (en) | 1999-11-24 |
| GB2354671A (en) | 2001-03-28 |
| AU7521600A (en) | 2001-04-30 |
| GB2354671B (en) | 2003-10-01 |
| WO2001024417A1 (en) | 2001-04-05 |
| EP1224758A1 (en) | 2002-07-24 |
| JP2003510955A (en) | 2003-03-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1227940C (en) | Utilization of plural multiple access types for mobile telecommunications | |
| CN101395939B (en) | Efficient utilization of transmission gaps for cell measurements | |
| CA1249343A (en) | Radio channel control method for mobile communication system | |
| CA2268269C (en) | An adaptive method for channel assignment in a cellular communication system | |
| KR100625723B1 (en) | Paging channel configuration for efficient wake-up period utilization | |
| FI98672C (en) | radio system | |
| CN1109469C (en) | Method and system for switching between channels in telephone system | |
| KR100990898B1 (en) | Device and method for CDMA-signal power estimation | |
| US20020141331A1 (en) | Method and device for downlink packet switching | |
| RU98117837A (en) | WIRELESS TELECOMMUNICATIONS NETWORKS TOGETHER USING THE GLOBAL MOBILE COMMUNICATION SYSTEM AND MULTIPLE ACCESS WITH CODE DIVISION OF CHANNELS | |
| WO1997030526A1 (en) | Telecommunication network having time orthogonal wideband and narrowband systems | |
| WO2001047299A1 (en) | Efficient resource management for packet data services | |
| CN101536406A (en) | Method and arrangement in a telecommunication system | |
| US6507570B1 (en) | Interfrequency measurement | |
| RU2003127755A (en) | AUTOMATIC DETECTION AND MODIFICATION OF USE OF A CHANNEL IN TDMA RADIO COMMUNICATION NETWORKS | |
| JP3161704B2 (en) | Cellular multi-carrier wireless communication system | |
| US20020061757A1 (en) | Variable mobile address lengths for efficient mobile paging and standby | |
| CN1391741A (en) | Inter-frequency measurement | |
| CN101483807A (en) | Method, system, terminal and access network for providing broadcast service in mobile communication network | |
| US6842434B1 (en) | Method and system for sharing CDMA data traffic channel among multiple users | |
| US5905722A (en) | Call processing method in radio telephone using spread spectrum communication system | |
| WO2000049739A3 (en) | Method and apparatus for multiplexing multiple gsm control channels to a single carrier | |
| JP2004538713A (en) | Method for supporting variable data rates in a CDMA system | |
| KR100616356B1 (en) | Data Rate Decision Method for High Speed Forward Supplemental Channels in the Spread Spectrum System | |
| CN1206268A (en) | Method for controlling direct call between mobile subscriber terminals in mobile communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |