CN1947023A - Method for channel assignments in wireless systems - Google Patents
Method for channel assignments in wireless systems Download PDFInfo
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- CN1947023A CN1947023A CNA2004800326299A CN200480032629A CN1947023A CN 1947023 A CN1947023 A CN 1947023A CN A2004800326299 A CNA2004800326299 A CN A2004800326299A CN 200480032629 A CN200480032629 A CN 200480032629A CN 1947023 A CN1947023 A CN 1947023A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
A method for maximizing battery efficiency of a wireless transmit/receive unit (WTRU) is disclosed. In one embodiment, a predetermined number of high-speed shared control channels (HS-SCCHs) are identified and WTRUs are instructed to monitor the HS-SCCHs according to a predetermined schedule. The predetermined schedule can include monitoring the HS-SCCHs in the same timeslot, either a timeslot just for the HS-SCCHs or a timeslot utilized by another channel.
Description
(1) technical field
The present invention refers to utilize high-speed downstream packet access (HSDPA) to assign the method for channel in wireless system about wireless telecommunication system especially.
(2) background technology
Release 5 UMTS (Universal Mobile Telecommunications System) frequency division duplexings (FDD) and time division duplex (TDD) pattern add the characteristic that is called high-speed downstream packet access (HSDPA), transfer rate, delay, spectrum efficiency in descending to promote (DL).The principle of high-speed downstream packet access be with dynamical fashion (that is to say, very fast; For instance, being every 2ms at frequency division duplexing, or being every 10ms at time division duplex) package transmission on air interface is to different mobile unit schedulings, becomes moment experience radio and the function of conditions of service.The major function of the high-speed downstream packet access of frequency division duplexing and time division duplex pattern comprises: aloft interface (Uu) go up row on the downlink channel state of fast uplink (UL) notice (ack/nack), wireless transmission/receive unit (WTRU) of row package under transmission again fast (mixing automatic repeat request (ARQ)), the mistake of row package receives under wrong the reception the fast channel feedback, descending in the effectively many users' of service fat pipe scheduling.This function (the just quick descending packet access packet scheduling of dynamic high speed device) is positioned at base station (Node B just), operates from radio network controller (RNC) in spontaneous mode.
In the time division duplex system, the radio network controller branch is used in some time slots of high-speed downstream packet access data channel (HS-DSCH (high-speed downstream is shared channel) just) and gives each cell.Radio network controller is posted a letter by Iub/Iur and is informed that the spreading codes of where organizing in which time slot of Node B and each time slot can be used for high-speed downstream and shares channel.When radio network controller Control Node B subsequently sends descending package and spreading codes in the time slot of selecting.
Moreover for the high-speed downstream packet access operation in the time division duplex, the descending and upload control from Node B to wireless transmission/receive unit and from wireless transmission/receive unit to radio network controller is posted a letter very important.There are two kinds of high-speed downstream packet access control channels, are used for the quick descending HS-SCCH that posts a letter (sharing the control channel at a high speed) and are used for the HS-SICH (high speed sharing information channel) that fast uplink is posted a letter.Share control channel and high speed sharing information channel at a high speed and all take a resource units (one in the time slot launches 16 yards of the factors).
Node B uses down high speed to share the control channel, and the wireless transmission/receive unit in the warning a group wireless transmission/receive unit is shared on the channel the high-speed data scheduling at high-speed downstream.The control channel can parallel supervision be shared up to four high speeds in a specific wireless transmission unit.Note to set up in the cell above four high speeds and share the control channel.
Wireless transmission/receive unit uses up-high speed sharing information channel, and notice Node B high-speed downstream is shared the result that channel decoding is attempted, and that is to say Data Receiving success/unsuccessful.The generation that any high speed sharing information channel clearly cooperates certain high-speed to share to control channel (fixed timing relationship and sign indicating number reflection) concerns setting up clearly between the wireless transmission/receive unit of sharing addressing on the control channel at a high speed and high-speed downstream are shared the corresponding uplink of same wireless transmission unit of channel decoding back to allow Node B.
For the high-speed downstream packet access operation in frequency division duplexing and the time division duplex, radio network controller is kept the up and descending connection of posting a letter of permanent low rate by dedicated channel (DCH) for wireless transmission/receive unit.This so-called cooperation dedicated channel transmits radio resource control (RRC) information (for instance, handover order or measurement data), also is used to transmit the up of user's panel data, and for instance, TCP/IP confirms.Even need lower data speed (to that is to say that 3.4kbps), this cooperates dedicated channel also identical with traditional common mobile communcations system R99 or R4 dedicated channel with function view.
The channel configuration of high-speed downstream packet access, that is to say, the operation of high-speed downstream packet access with cooperate high-speed downstream up and that the downlink dedicated channel is required share channel, at a high speed share control channel, high speed sharing information channel for the channel allocation of time slot and spreading codes by reaching being connected the radio network controller of setting up.Radio network controller is posted a letter by radio resource control and is notified wireless transmission/receive unit with channel configuration, on the Iub/Iur network interface by NBAP (node B application part) the notice Node B of posting a letter.
Wireless transmission/receive unit must rule receive or send the significant burden that constitutes power consumption and battery efficiency simultaneously at many channels (that is to say, share control channel, a descending cooperation dedicated channel, a up cooperation dedicated channel, a up-high speed sharing information channel up to four down high speeds) of high-speed downstream packet access service.When Node B packet scheduling device is served other wireless transmission/receive unit, relevant especially at park mode, that is to say short (one to tens of above empty frames) but frequent high-speed downstream packet access transmission termination.
The determinative of whole wireless transmission/receive unit power consumption is partly (power amplifier, hunting of frequency level, interface frequency converter, wave filter) time span of opening of radio frequency (RF), sends required person such as receiving in containing the time slot of data or containing in the time slot of data.The fundamental frequency task module of wireless transmission/receive unit (digital DSP, ASIC or the like) is relatively poor with regard to the power consumption sight, and when radio frequency component was closed, the fundamental frequency assembly was operated background task or decoding usually.Usually, all do the time spent simultaneously when fundamental frequency assembly and radio frequency component, the radio frequency component of wireless transmission/receive unit is gone in about 80% wireless transmission/receive unit battery electric power consumption.
Therefore support the high-speed downstream packet access to serve the mode of needed many while channel challenge channel distribution, to reduce the power consumption of wireless transmission/receive unit.
(3) summary of the invention
Announcement makes the maximized method of battery efficiency of wireless transmission/receive unit (WTRU).In one embodiment, the high speed of identification predetermined number is shared control channel (HS-SCCH), monitors according to predetermined scheduling indication wireless transmission/receive unit and shares the control channel at a high speed.Predetermined scheduling can be included in the identical time slot and to monitor and share the control channel at a high speed, and identical time slot is to be used for sharing at a high speed the time slot that time slot or another channel utilized of controlling channel.
Make the maximized system of battery efficiency of wireless transmission/receive unit comprise the high-speed downstream packet access dispensing controller that is positioned at radio network controller at wireless telecommunication system with radio network controller.Dispensing controller is with one of following three kinds of modes channel distribution: (1) shares the high speed that wireless transmission/receive unit was monitored with the control channel allocation to identical descending time slot, (2) high speed that wireless transmission/receive unit monitored is shared the control channel allocation receives the downlink dedicated channel to wireless transmission/receive unit descending time slot, or (3) send high speed sharing information channel allocation to wireless transmission/receive unit the up time slot of up dedicated channel, after wireless transmission/receive unit decoding high-speed downstream is shared channel, distribute high speed sharing information channel.
(4) description of drawings
By example and accompanying drawing, can more understand the present invention from the following explanation of preferred embodiment, wherein:
Fig. 1 is the time slot figure according to the channel supervision of first and second embodiment of the present invention;
Fig. 2 is the time slot figure according to the channel supervision of the present invention's the 3rd embodiment;
Fig. 3 is the time slot figure according to the channel supervision of multiframe channel allocation; And
Fig. 4 is the figure of the system that constitutes according to the present invention.
(5) embodiment
Hereinafter, wireless transmission/receive unit (WTRU) is including but not limited to user's equipment, transfer table, fixing or moving user unit, beeper or can be at the device of any other kind of wireless environment operation.When hereinafter mentioning, base station is including but not limited to Node B, base station controller, access point or at the interface arrangement of any other kind of wireless environment.
Among the present invention, the channel (high speed that monitors usefulness is shared dedicated channel, the high speed sharing information channel of control channel, descending and up cooperation) that distributes time division duplex high-speed downstream packet access wireless transmission/receive unit by radio network controller, make the battery efficiency maximization of the wireless transmission/receive unit in the high-speed downstream packet access service, make radio frequency component opening time (as the whole determinative) minimum of wireless transmission/receive unit.Note every frame once (or maximum secondary), wireless transmission/receive unit must receive the main controlled entity channel (P-CCPCH) or the second beacon time slot shared, to obtain setting the path loss measurement of uplink transmit power.
By giving radio network controller to carry out the freedom of high-speed downstream packet access channel allocation to each wireless transmission/receive unit, need wireless transmission/receive unit with monitor each frame up to four high speeds share control channel can insert identical time slot.In addition, each high speed sharing information channel resource (16 yards of the expansion factors in the special time slot) is shared the control channel at a high speed corresponding to one, but post a letter by radio resource control (RRC), radio network controller can be set sharing at a high speed independently cooperating between control channel and the high speed sharing information channel for different radio transmission unit.
In first embodiment of this method, as shown in Figure 1, the radio network controller that distributes some or all of high speeds to share to control channel reduces wireless transmission/receive unit power consumption.The wireless transmission/receive unit rule monitors identical descending time slot.In second embodiment of this method, also as shown in Figure 1, the radio network controller that distributes some or all of high speeds to share to control channel reduces wireless transmission/receive unit power consumption.The wireless transmission/receive unit rule monitors that rule receives the identical time slot that it cooperates the downlink dedicated channel.
Use can be hanged down according to the opening time of the radio frequency component of the method for first and second embodiment and be reached three time slots (among 15), that is to say, P-CCPCH time slot, downlink dedicated channel time slot, up dedicated channel time slot, potential in 7 in 15 time slots when each that will monitor is shared the control channel allocation at a high speed and given different descending time slot.The revision a little of second embodiment is to distribute to share the control channel at a high speed to P-CCPCH (or second beacon time slot), and this is because the radio frequency component of wireless transmission/receive unit acts on, to measure the downlink path loss of its uplink.
In the 3rd embodiment of this method, as shown in Figure 2, after high-speed downstream was shared channel decoding trial, the radio network controller that distributes high speed sharing information channel to send its up time slot that cooperates up dedicated channel (seeing the frame 3 of Fig. 2) for the wireless transmission/receive unit rule reduced wireless transmission/receive unit power consumption.Because standard guarantees to be assigned the minimum processing time and shares data in the channel to handle high-speed downstream, so high speed sharing information channel sends but not frame 2 at frame 3.Therefore, the high speed sharing information channel of sharing the affirmation that contains data in the channel or Negative Acknowledgement at special high-speed downstream not with receive high-speed downstream and share in the identical frame of channel and send, and usually evening two frames (as shown in Figure 2).The attention standard distributes about 15-16 time slot to give the time division duplex pattern, and about 7.5 time slots are given Frequency Division Duplexing mode.Be controlled at when setting up by radio resource and post a letter, select up-high speed sharing information channel that the down high speed of wireless transmission/receive unit is shared the cooperation of controlling channel, radio network controller can carry out high speed sharing information channel allocation.
Noticing that time division duplex allows that multiframe distributes, that is to say, is not that each frame rule produces channel, but per two, four, eight or the like frame.Cooperate Fig. 1,2 said method to extend to these situations naturally, as shown in Figure 3.
Fig. 4 shows the system 400 that constitutes according to the present invention.System 400 comprises radio network controller 410, Node B 420, wireless transmission/receive unit 430.Radio network controller 410 comprises high-speed downstream packet access dispensing controller 412.Radio network controller 410 is via other radio network controller communication in Iur interface 414 and the Universal Mobile Telecommunications System, via Iub interface 416 and Node B 420 communications.Wireless transmission/receive unit 430 comprises radio frequency section 432 and fundamental frequency section 434, communicates with one another in wireless transmission/receive unit 430.
Node B 420 is via one group of high-speed downstream packet access channel 440 and wireless transmission/receive unit 430 communications.Channel 440 comprises more than one high-speed downstream and shares channel 442a-442n, more than one high speed and share control channel 444a-444n, more than one high speed sharing information channel 446a-446n, downlink dedicated channel 448, up dedicated channel 450.By selecting channel from this group 440, the channel that dispensing controller 412 distributes wireless transmission/receive unit 430 to use.According to above-mentioned any method, carry out channel allocation.System 400 can be used for any method, and does not need additional modifications.
Attention though describe the present invention with Universal Mobile Telecommunications System type science and technology, notice that the present invention can implement with the wireless telecommunication system of any kind in order to simplify.For instance, invention can be implemented in the wireless telecommunication system of Universal Mobile Telecommunications System-frequency division duplexing, Universal Mobile Telecommunications System-time division duplex, TD-SCDMA, CDMA2000 (EV-DO and EV-DV) or other any kind.
Though to be combined in especially characteristic of the present invention and assembly are described in the preferred embodiment, each characteristic or assembly can use separately (other characteristic or the assembly that do not need preferred embodiment) in conjunction with or not in conjunction with other characteristic of the present invention or assembly.The present invention must be thought and is to modify right neither taking off as Protector that claim is desired as all by the people Ren Shi craftsman who is familiar with skill.
Claims (15)
1. the maximized method of battery efficiency that makes wireless transmission/receive unit (WTRU) comprises the following steps:
Discern the high speed of a predetermined number and share control channel (HS-SCCH); And
According to a predetermined scheduling, the indication wireless transmission/receive unit monitors that this shares the control channel at a high speed.
2. the method for claim 1 wherein should predetermined scheduling be included in and monitors in the identical time slot and share the control channel at a high speed.
3. the method for claim 1 wherein should predetermined scheduling be included in and monitors in the employed identical time slot of another channel and share the control channel at a high speed.
4. method as claimed in claim 3, wherein another channel is a main controlled entity channel of sharing.
5. method as claimed in claim 3, wherein another channel is a descending dedicated channel.
6. the method for claim 1 further comprises the following steps:
Distribute a up-high speed sharing information channel to give the time slot identical with another uplink.
7. method as claimed in claim 6 wherein after this wireless transmission/receive unit is deciphered a high-speed downstream and shared channel transmission, is carried out allocation step.
8. method as claimed in claim 6, wherein this time slot is also used by a up dedicated channel.
9. the maximized method of battery efficiency that makes wireless transmission/receive unit (WTRU) comprises the following steps:
Only distribute a up-high speed sharing information channel to give the time slot identical with another uplink of this wireless transmission/receive unit.
10. method as claimed in claim 9 wherein after this wireless transmission/receive unit is deciphered a high-speed downstream and shared channel transmission, is carried out allocation step.
11. method as claimed in claim 9, wherein this time slot is also used by a up dedicated channel.
12. the maximized method of battery efficiency that makes the wireless transmission/receive unit (WTRU) in the wireless telecommunication system, this wireless telecommunication system has a radio network controller (RNC) and a Node B, and this system comprises:
Be positioned at a high-speed downstream packet access dispensing controller of radio network controller, this dispensing controller is distributed the channel by this wireless transmission/receive unit monitored.
13. system as claimed in claim 12, wherein this dispensing controller is distributed by the high speed that this wireless transmission/receive unit monitored and is shared the control channel to identical descending time slot.
14. system as claimed in claim 12, wherein this dispensing controller is distributed and is shared the control channel by the high speed that this wireless transmission/receive unit monitored and receive a descending dedicated channel in descending time slot wherein for this wireless transmission/receive unit.
15. system as claimed in claim 12, wherein this dispensing controller distributes a high speed sharing information channel (HS-SICH) to send up dedicated channel in up time slot wherein to wireless transmission/receive unit, after this wireless transmission/receive unit is deciphered a high-speed downstream and shared channel, distribute this high speed sharing information channel.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US51814703P | 2003-11-07 | 2003-11-07 | |
| US60/518,147 | 2003-11-07 | ||
| US10/902,370 | 2004-07-29 |
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| Publication Number | Publication Date |
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| CN1947023A true CN1947023A (en) | 2007-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2004800326299A Pending CN1947023A (en) | 2003-11-07 | 2004-11-02 | Method for channel assignments in wireless systems |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101677256B (en) * | 2008-09-17 | 2014-09-10 | 中兴通讯股份有限公司 | Method for transmitting user type information of same time slot in time-division synchronous code-division multi-address system |
| US11622279B2 (en) | 2019-01-08 | 2023-04-04 | Industrial Technology Research Institute | Method for downlink reception in unlicensed band and user equipment using the same |
-
2004
- 2004-11-02 CN CNA2004800326299A patent/CN1947023A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101677256B (en) * | 2008-09-17 | 2014-09-10 | 中兴通讯股份有限公司 | Method for transmitting user type information of same time slot in time-division synchronous code-division multi-address system |
| US11622279B2 (en) | 2019-01-08 | 2023-04-04 | Industrial Technology Research Institute | Method for downlink reception in unlicensed band and user equipment using the same |
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