CN101529748A - Method for transitioning between multiple reception levels - Google Patents
Method for transitioning between multiple reception levels Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0866—Non-scheduled access, e.g. ALOHA using a dedicated channel for access
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- 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
There is provided a method for enabling a user equipment (UE) to transition between a non-discontinuous reception (Non-DRX) level and at least one discontinuous reception (DRX) level. The UE in a DRX level wakes up periodically to monitor a scheduling channel. The method includes receiving a DRX indicator in a Non-DRX level with continuously monitoring the scheduling channel and transitioning from the Non-DRX level to a DRX level indicated by the DRX indicator. The UE can transition between multiple DRX levels by an explicit command/signaling.
Description
Technical field
The present invention relates to radio communication, more particularly, relate to a kind of method of between a plurality of incoming levels, changing of being used for, the power consumption of subscriber equipment being reduced to minimum, and improve the service quality in the wireless communication system.
Background technology
Third generation collaborative project (3GPP) mobile communication system based on Wideband Code Division Multiple Access (WCDMA) (WCDMA) wireless access technology is widely adopted in the whole world.The high-speed downlink packet that can be defined as first evolution period of WCDMA inserts (HSDPA) wireless access technology that high competition will be provided to 3GPP future in mid-term.But because user and ISP's needs and expectation continue to increase, and the exploitation of emulative wireless access technology continuing to carry out, so need be aspect 3GPP new technological innovation is to guarantee the competitiveness in future.The reduction of every bit cost, the increase of service availability, the flexible use of frequency band, simple structure and open interface, low power consumption of subscriber equipment or the like all is used as the requirement of next generation communication system and proposes.
Paging is network is called out one or more subscriber equipmenies for certain purpose behavior.Except the basic function that allows the web search subscriber equipment, paging also has the function that allows subscriber equipment to be waken up from sleep pattern.Subscriber equipment is in sleep pattern in normal time.Have only when paging channel when network arrives, subscriber equipment is just waken up, and carries out the action by network requests.
In sleep pattern, subscriber equipment will periodically be waken up, and confirm whether paging channel arrives.With periodic intervals, rather than wake subscriber equipment in institute up on free and be known as interrupted reception (hereinafter, being called DRX).
Different with the base station, subscriber equipment uses battery operated.If the battery of subscriber equipment does not recharge constantly, then be limited the running time of subscriber equipment.In order to increase running time, subscriber equipment should be designed so that when in fact subscriber equipment does not send or receive data reduces to minimum with power consumption.
In order to save power consumption various methods are arranged.First method meets owing to the limited design criterion of setting up of the battery capacity of subscriber equipment, and whether this method is to confirm to have had any data arrival time that subscriber equipment spent to reduce to minimum subscriber equipment.User equipment monitors is used for the data arrival notice is given the channel of subscriber equipment, and such as paging channel, the time that is spent is reduced to minimum.Second method is when user data will be sent to subscriber equipment from network, time of delay of minimum to send user data to subscriber equipment.In fact it is long more to arrive the time that is spent the time point of subscriber equipment from the time point of network creation user data to user data, and the service quality that the user feels is poor more.The user data that arrives network should send subscriber equipment to as quickly as possible so that will reduce to minimum time of delay.But, in order to reduce time of delay, user equipment monitors paging channel t, such as paging channel, the time that is spent also will increase.
Though aforesaid first and second kinds of methods are the necessary conditions of operating subscriber equipment best, they are conditions of contradiction each other.
Existence is for the needs that satisfy simultaneously the method for these two conditions in subscriber equipment and network.
Summary of the invention
An object of the present invention is to provide a kind of method that allows subscriber equipment between a plurality of incoming levels (reception level), to change by clear and definite signaling, thereby the power consumption of subscriber equipment is reduced to minimum, and prevent that service quality from worsening.
In one aspect, provide a kind of and be used to allow subscriber equipment (UE) (Non-DRX) level and at least one are interrupted receives the method that (discontinuous reception) (DRX) changes between the level in non-interrupted reception (non-discontinuous reception).The UE that is in the DRX level periodically wakes up to monitor scheduling channel.This method comprises along with monitoring this scheduling channel continuously in the Non-DRX level and to receive the DRX designator, and from the Non-DRX level conversion to the DRX level of representing by the DRX designator.
In one aspect of the method, provide a kind of method of allowing subscriber equipment (UE) between a plurality of incoming levels, to change of being used to.This method is included in first incoming level and receives transitional information and be transformed into second incoming level based on transitional information from first incoming level.
In aspect another, provide a kind of method of allowing subscriber equipment (UE) between a plurality of incoming levels, to change of being used to.This method comprises the detection switch condition and when detecting switch condition, is transformed into second incoming level from first incoming level.The DRX level of first incoming level is different period with the DRX level of second incoming level period.
Subscriber equipment can be changed between a plurality of DRX level by clear and definite order/signaling.When subscriber equipment transmitted and/or receive data, the power consumption of the subscriber equipment that is caused by wait was reduced to minimum, and service quality can be optimised.
Description of drawings
Fig. 1 is the block diagram that wireless communication system is shown.
Fig. 2 is the block diagram that the control plane of Radio interface protocols is shown.
Fig. 3 is the block diagram that the user plane of Radio interface protocols is shown.
Fig. 4 illustrates the example that receives the method for data according to one embodiment of the invention.
Fig. 5 illustrates the example that receives the method for data according to another embodiment of the present invention.
Fig. 6 illustrates the example that receives the method for data according to another embodiment of the present invention.
Fig. 7 illustrates the example that receives the method for data according to another embodiment of the present invention.
Fig. 8 illustrates the example that receives the method for data according to another embodiment of the present invention.
Fig. 9 illustrates the example that receives the method for data according to another embodiment of the present invention.
Figure 10 illustrates the example that receives the method for data according to another embodiment of the present invention.
Figure 11 illustrates the example that receives the method for data according to another embodiment of the present invention.
Figure 12 illustrates the example that sends the method for data according to one embodiment of the invention.
Embodiment
Fig. 1 is the block diagram that wireless communication system is shown.It can be the network configuration of the Universal Mobile Telecommunications System (E-UMTS) of evolution.E-UMTS Long Term Evolution (LTE) system that can be known as.Wireless communication system is widely used so that various communication services to be provided, such as voice, grouped data or the like.
With reference to figure 1, the UMTS grounding wireless access network network (E-UTRAN) of evolution comprises base station (BS) 20.Subscriber equipment (UE) can be that fix or mobile, and can be called as another term, such as, mobile radio station (MS), user terminal (UT), subscriber station (SS), wireless device or the like.BS 20 is fixed station normally, and it is communicated by letter with UE 10, and can be called as another term, such as the Node B (eNB) of evolution, base-station transceiver system (BTS), access point or the like.One or more sub-districts can exist in the scope of BS 20.Can between BS 20, be used to transmit customer service or the professional interface of control.Hereinafter, down link refers to from the communication of BS 20 to UE 10, and up link refers to from the communication of UE 10 to BS 20.
BS 20 provides the destination node (termination point) of user plane and control plane.BS 20 is connected to each other via X2 interface, and adjacent base station 20 can have cancellated network, and X2 interface exists all the time in this network.
Can be based on following three layers and the layer of the Radio interface protocols between UE and the BS is divided into L1 (ground floor), L2 (second layer) and L3 (the 3rd layer) of known OSI(Open Systems Interconnection) model concerning communication system.Use physical channel that formation transfer service is provided corresponding to the physical layer of ground floor.Be arranged on Radio Resource control (RCC) layer control UE in the 3rd layer and the Radio Resource between the network.For this purpose, this rrc layer exchanges RRC message between UE and network.Rrc layer can such as distributing among BS 20, aGW 30 or the like, perhaps can only be arranged among BS 20 or the aGW 30 at network node.
Radio interface protocols comprises physical layer, data link layer and network layer in a horizontal plane.Perhaps Radio interface protocols comprises user plane that is used for transmitting data information and the control plane that is used to transmit control signal in vertical plane.
Fig. 2 is the block diagram that the control plane of Radio interface protocols is shown.Fig. 3 is the block diagram that the user plane of Radio interface protocols is shown.These show the structure based on the Radio interface protocols of 3GPP Radio Access Network standard between UE and E-UTRAN.
With reference to figure 2 and 3, physical layer, that is, ground floor uses physical channel to provide formation transfer service to the upper strata.This physical layer is connected to media interviews controls (MAC) layer via transmission channel, that is, and and the upper strata.Data move between MAC layer and physical layer via transmission channel.Data, in different physical layers that is, move between the physical layer of transmitter and the physical layer of receiver via physical channel.
The MAC layer of the second layer provides service to Radio Link control (RLC) layer via logic channel, that is, and and the upper strata.The reliable transfer of data of rlc layer support of the second layer.The function of this rlc layer may be implemented as the functional block in the MAC layer, and in this case, this rlc layer can not exist, and is shown in dotted line.
The packet data convergence protocol of the second layer (PDCP) is carried out header compression function, to reduce the size of IP (Internet Protocol) packet header, this IP packet header comprises relatively large and unnecessary control information, when transmitting IP grouping such as IPv4 or IPv6 grouping, in the wireless portion of narrow bandwidth, transmit grouping efficiently with box lunch.
The 3rd layer Radio Resource control (RRC) layer only is defined on the control plane.The configuration of the control of this rrc layer and wireless carrier (RB), reconfigure and discharge relevant logic channel, transmission channel and physical channel.RB refers to by the second layer and provides so that transmit the service of data between UE and E-UTRAN.First and second layers of logical path that provides by this wireless protocols are provided RB, are used for transmitting data between UE and E-UTRAN.Normally, RB is set refers to the feature of specifying radio protocol layer and the channel be used to provide special services, and the special parameter of radio protocol layer and channel and the process of method of operation are set.
Be used for comprising broadcast channel (BCH) that is used for transfer system information and the downlink sharied signal channel (DL-SCH) that is used to transmit customer service or control messages to the downlink transmission channel that UE transmits data from network.The business that is used for multicast or broadcast service or control messages can transmit via DL-SCH or via independent down link Multicast Channel (DL-MCH).Be used for comprising to the uplink transmission channels of network transmission data and be used to the uplink shared channel (UL-SCH) that transmits the Random Access Channel (RACK) of initial control messages (initial control message) and be used to transmit other customer service or control messages from UE.The paging channel (PCH) that is used to transmit paging information also is included in the uplink transmission channels.
Fig. 4 illustrates the example that receives the method for data according to one embodiment of the invention.
With reference to figure 4, UE has at least two interrupted (being called DRX hereinafter) level that receive.The DRX level has defined the time that UE is used to confirm the arrival of down link data.The DRX level is the incoming level that is used to reduce the power consumption of UE.This DRX level has defined the period of the arrival that is used to confirm down link data, that is, and and DRX level period.UE confirms the arrival of down link data on period at each DRX level.Interim UE confirms that the time point that down link data arrives is known as calling time (paging occasion) when the DRX level.This calling time can interim repetition when each DRX level.
The interval that Radio Resource is assigned to UE is known as Transmission Time Interval (TTI), interim TTI when calling time can point to the DRX level.
The DRX level of each DRX level period can be different period with the DRX level of other DRX level.Have a plurality of DRX level, they have the DRX level period that differs from one another.
Hereinafter, suppose that UE has two DRX level, that is, a DRX level and the 2nd DRX level, and the DRX level of a DRX level is longer period than the DRX level of the 2nd DRX level period.But the number of DRX level is not limited to two, but can be three or more.
UE wakes up in first subframe of a DRX level, and the receiving scheduling channel.Here, this scheduling channel refers to UE represents that data arrive, and perhaps transmits the channel of paging signal to UE.This scheduling channel can be indicator channel (PICH), paging channel (PCH), L1/L2 control channel or the like.
In Fig. 4, because UE can not find its information from first subframe of a DRX level, so it enters sleep pattern during remaining DRX level period.
Next, this UE wakes up in first subframe in DRX level period, and the receiving scheduling channel.If BS has the first data D1 to transmit, then there are corresponding to first data of starting point with DRX level period in this BS via scheduling channel notice UE.This UE recognizes it and has been scheduled and is operated in non-interrupted reception (Non-DRX) level.The Non-DRX level also can be known as continuous incoming level.In the Non-DRX level, this UE receives the channel that guide (direct) receives data continuously, perhaps notifies the channel of the arrival of the data that will be transmitted to UE.Will transmit if BS has the first data D1, then there are first data in this BS via scheduling channel notice UE.This UE identification scheduling channel enters the Non-DRX level, and the first represented data D1 of receiving scheduling information.
After the transmission of finishing the first data D1, this BS transmits the DRX designator and gives UE, and UE no longer needs receiving scheduling channel continuously with notice.
This DRX designator guides UE to be transformed into new incoming level.This DRX designator becomes the switch condition that is used for UE is transformed into new incoming level.New incoming level can be new DRX level or new Non-DRX level.BS can guide UE from Non-DRX level conversion to the first or the 2nd DRX level by the DRX designator.In the example of Fig. 4, this DRX designator guides UE to be transformed into the 2nd DRX level, and this UE two DRX level represented from the Non-DRX level conversion to the DRX designator.If the 2nd DRX level is not set, then this UE can be transformed into a DRX level.
When being operated in the 2nd DRX level, UE wakes up in first subframe in each the 2nd DRX level period, and the receiving scheduling channel.Will transmit if BS has the second data D2, then this BS exists and the 2nd DRX level corresponding to second data D2 in period via scheduling channel notice UE.This UE identification scheduling channel enters the Non-DRX level, and receives the second data D2.Because the 2nd DRX level is shorter period than a DRX level period, so this BS can transmit the second data D2 with the interval of further weak point.
If UE can not find its information, then this UE interim not receiving scheduling channel when residue from scheduling channel during residue period in the 2nd DRX level period.This UE wakes up in first subframe in each the 2nd DRX level period, and the receiving scheduling channel.If it can not find its information from first subframe in the 2nd DRX level period, this UE receiving scheduling channel not during residue period in the 2nd DRX level period of corresponding the 2nd DRX level then.
If satisfied certain condition when being operated in the 2nd DRX level, then UE can be transformed into a DRX level once more.Here, illustrate in the drawings, in case finish second period in the one DRX level period at the BS place, that is, in the 3rd period in DRX level period, then this UE quits work at the 2nd DRX level, and is transformed into a DRX level.
Between network and UE, define two or more incoming levels at least.This incoming level refers to the accepting state of UE, and it can be Non-DRX level or DRX level.When satisfying switch condition, UE can change between incoming level.
Incoming level is to change by clear and definite order or clear and definite signaling.
The example of a switch condition that is used for changing between incoming level is that UE receives the DRX designator.This DRX designator can guide UE to be transformed into another DRX level.Similarly, this DRX designator can guide UE to be transformed into the Non-DRX level.This DRX designator can comprise such information, that is, which incoming level conversion this information representation UE among a plurality of incoming levels should be transformed into.If UE receives the DRX designator whether relevant UE should be transformed into specific DRX level, be transformed into by the guided DRX level of DRX designator at this UE.
This DRX designator can comprise the information when expression UE is transformed into new DRX level.This DRX designator can comprise the time started of new DRX level.If this DRX designator comprises the information when expression UE should be transformed into new DRX level, then this UE can be transformed into new DRX level in this information on the guided time.
Can transmit the DRX designator via the L1/L2 control channel.Alternatively, can transmit this DRX designator via MAC message, and this DRX designator can be contained in the mac header.The DRX designator that is included in the mac header can be comprised in the form of control information in the Medium Access Control (MAC) Protocol Data Unit (PDU).Can transmit this DRX designator via RRC message.
Another example of switch condition is the value of setting that UE receives new incoming level.When setting up at first, network and UE call out or when rebuliding calling, this BS can be notified to UE with this value of setting.This value of setting can be and the DRX level relevant value of using in each DRX level in period.Alternatively, this value of setting can be to be illustrated in the information when DRX level in each DRX level begins period.Can transmit this value of setting via RRC message.
Another example of switch condition is that UE does not receive data in specific a period of time, perhaps in specific a period of time, do not give the arrival of UE notification data, these data are that UE should receive via certain channel, this certain channel is to guide UE to remove to receive the channel of data, and perhaps notice has the channel of the data that will be transmitted to UE.
Another example of switch condition is that UE transmits data via uplink channel.This is that UE transmits the message that is used to ask Radio Resource to uplink channel, perhaps transmits the situation of user data or control messages via uplink channel.
Another example of switch condition is the beginning in new DRX level period of a DRX level, and this DRX level is different from UE present located DRX level.
Another example of switch condition is the beginning in new DRX level period of another DRX level, and the DRX level that this another DRX level has is longer period than the DRX level of UE present located DRX level period.
If switch condition occurs and UE is transformed into new DRX level, then can begin to apply new DRX level from the specific time.This specific time can be the time point that begins the new period of new DRX level.When UE is transformed into new DRX level, before can beginning in the new period of new DRX level, this UE keeps the DRX level of current use.
In each DRX level, UE receiving scheduling channel, this scheduling channel guide UE to go to receive data, perhaps have the data that will be transmitted to UE with preset time cycle notice.After receiving scheduling channel, if the notified existence of UE arrives the data of UE, perhaps UE receives the information of relevant its Radio Resource that should receive, and then this UE can be transformed into new incoming level.For example, this UE can be transformed into the Non-DRX level.If BS notifies the data that do not arrive UE to UE, perhaps less than the information of the Radio Resource of notifying relevant UE to receive to UE, so, based on the DRX value of setting, before the cycle, this UE is the receiving scheduling channel not at next preset time.
In each DRX level, BS can only transmit the DRX designator with the preset time cycle via scheduling channel, and this DRX designator guides and goes to receive data, and perhaps order goes to prepare to receive data.After receiving the DRX designator, UE can be transformed into new incoming level.For example, network and UE can be transformed into the Non-DRX level.If BS does not arrive the data of UE to UE notice, perhaps do not notify the information of the Radio Resource that relevant UE should receive to UE, so, based on the DRX value of setting, before the cycle, this BS can not transmit the DRX designator at next preset time.
This preset time cycle can be a calling time.The interim repetition when each DRX level of this calling time.This calling time is DRX level the one TTI in period.
Hereinafter, by means of several examples a plurality of incoming levels and the conversion between them are described.
Network and UE can be provided with three incoming levels.Three incoming levels comprise a Non-DRX level and two DRX level (a DRX level and the 2nd DRX level).If satisfy certain condition, be transformed into next incoming level from current incoming level at network and UE.Then, they are based upon the value of setting of each incoming level setting and the method for receiving downlink channel are set.
In the Non-DRX level, UE is the receiving scheduling channel continuously, and this scheduling channel guides UE to go to receive data, and perhaps notice has the data that will be transmitted to UE.In the Non-DRX level, this UE receiving scheduling channel continuously on each time cycle.
In a DRX level, this UE is based on DRX value of setting (DRX level period) receiving scheduling channel on each calling time.If represented to have the data that will be transmitted to UE at calling time, perhaps received the information of the allocation of radio resources that relevant UE should receive, then this UE can be transformed into the Non-DRX level.
In the 2nd DRX level, UE receives the scheduling channel that guides UE to go to receive data on each calling time based on the DRX value of setting.If represented to have the data that will be transmitted to UE at calling time, perhaps received the information of the allocation of radio resources that relevant UE should receive, then this UE can be transformed into the Non-DRX level.Alternatively, this UE can be from the 2nd DRX level conversion to a DRX level.
In the 2nd DRX level, UE receives the scheduling channel that guides UE to go to receive data on each calling time based on the DRX value of setting.If represented to have the data that will be transmitted to UE at calling time, perhaps received the information of the allocation of radio resources that relevant UE should receive, then UE can only carry out continuously in the corresponding period of the 2nd DRX level and receive.During whole corresponding period, this UE can the receiving scheduling channel.
UE is that this UE receives the DRX designator that guide is transformed into the 2nd DRX level from BS from an example of the switch condition of Non-DRX level conversion to the two DRX level.Another example is that this UE does not receive data from BS in the certain hour section, does not perhaps have receiving scheduling information.Another example is that this UE receives the value of setting that is used for new Non-DRX level.Another example is not receive data as UE in the certain hour section, and perhaps not when BS receives the information of data dispatch of relevant UE, this UE arrives first subframe in the 2nd DRX level period.
UE is that UE does not receive data from BS in the certain hour section from an example of the switch condition of the 2nd DRX level conversion to a DRX level, does not perhaps have receiving scheduling information.Another example is that UE does not receive data from BS, does not perhaps receive the information of the data dispatch of relevant UE.Another example is first subframe that this UE arrives DRX level period.To be this UE from BS received another example guides the DRX designator that is transformed into a DRX level.Another example is that this UE receives the value of setting that is used for new Non-DRX level.
If UE has a plurality of incoming levels, can depend on that then the amount of user data that sends UE to adjusts the power consumption of UE.In normal accessed web page example, after downloading webpage, the user can not move to one page down when watching the screen long period when internet browsing.The data of this webpage are sent to the user together.But, depend on situation, when being transmitted to the user, some data, for example several figure sector-meetings of configuration webpage are delayed.In this case, this UE is operated in the Non-DRX level when screen is transmitted at every turn, this UE is transformed into the 2nd DRX level, some data can be postponed in next stage in the 2nd DRX level, at last, UE is transformed into a DRX level, and in a DRX level, transfer of data almost is unwanted when the user watches this webpage.If the number of the DRX level of this UE is very big, then can reduce the power consumption of UE by differentiation DRX level according to the stream of user data.In addition, the deterioration of the service quality felt of user also can be reduced to minimum.
Fig. 5 illustrates the example that receives the method for data according to another embodiment of the present invention.Timer is used to change between incoming level.
With reference to figure 5, UE is at a DRX level at first.Will transmit if BS has the first data D1, then this BS has and DRX level corresponding to first data in period via scheduling channel notice UE.This UE identification scheduling channel enters the Non-DRX level, and receives the first data D1.
After the transmission of finishing the first data D1, the starting of conversion timing device.If UE does not receive its information via scheduling channel before the expiration of conversion timing device, then this UE can be transformed into another incoming level.Here, when the conversion timing device expired, UE was from Non-DRX level conversion to the two DRX level.The duration of this conversion timing device can be stored in the memory, can be notified to UE by BS, perhaps can assign and be notified to BS by UE.
Fig. 6 illustrates the example that receives the method for data according to another embodiment of the present invention.A plurality of timers are used for changing between incoming level.
With reference to figure 6, UE is at a DRX level at first.Will transmit if BS has the first data D1, then this BS has and DRX level corresponding to first data in period via scheduling channel notice UE.This UE identification scheduling channel enters the Non-DRX level, and receives the first data D1.
After the transmission of finishing the first data D1, the starting of the first conversion timing device.If this UE does not receive its information via scheduling channel before the expiration of the first conversion timing device, then this UE can be transformed into another incoming level.Here, when the first conversion timing device expired, this UE was from Non-DRX level conversion to the two DRX level.
When this UE is transformed into the 2nd DRX level, the starting of the second conversion timing device.If this UE does not receive its information via scheduling channel before the expiration of the second conversion timing device, then this UE can be transformed into another incoming level.Here, if the expiration of the second conversion timing device, then this UE is from the 2nd DRX level conversion to a DRX level.
Fig. 7 illustrates the example that receives the method for data according to another embodiment of the present invention.DRX level period of predetermined number is processed changes between incoming level being used for.
With reference to figure 7, UE is at a DRX level at first.Will transmit if BS has the first data D1, then this BS has and DRX level corresponding to first data in period via scheduling channel notice UE.This UE identification scheduling channel enters the Non-DRX level, and receives the first data D1.
After the transmission of finishing the first data D1, this UE is transformed into the 2nd DRX level.This conversion can be carried out by DRX designator or timer.If this UE does not receive its schedule information at the 2nd DRX level of predetermined number in period, then this UE is transformed into a DRX level.Here, after three the 2nd DRX level past in period, this UE is transformed into a DRX level.
The number in DRX level period can be BS and all known in advance value of UE, perhaps can be notified to UE by BS, and perhaps vice versa.
Fig. 8 illustrates the example that receives the method for data according to another embodiment of the present invention.This be a DRX level not with the situation of the 2nd DRX level synchronization.
With reference to figure 8, if UE does not receive its schedule information at the 2nd DRX level of predetermined number in period, then it is transformed into a DRX level.Here, after three the 2nd DRX level past in period, this UE is transformed into a DRX level.At this moment, after the 2nd DRX level past in period of predetermined number, this UE is transformed into a DRX level immediately.
Fig. 9 illustrates the example that receives the method for data according to another embodiment of the present invention.This is the situation of a DRX level and the 2nd DRX level synchronization.
With reference to figure 9, though UE does not receive its schedule information in period at the 2nd DRX level of predetermined number, it by before synchronous, keeps the 2nd DRX level at a DRX level.The number of supposing for the 2nd DRX level period is set to three, and if three the 2nd DRX level periods in the past after a DRX level even also not by synchronously, then before a new DRX level was started period, the 2nd DRX level was continued.At this moment, the number in set the 2nd DRX level period refers to minimum number of repetition.
Figure 10 illustrates the example that receives the method for data according to another embodiment of the present invention.
With reference to Figure 10, the starting point in DRX level period is determined in advance.Therefore, though UE receives the DRX designator after the transmission of finishing the first data D1, it does not stop the receiving scheduling channel immediately, but before next the 2nd DRX level arrival in period, this UE keeps the Non-DRX level.After this, this UE is transformed into corresponding to the 2nd DRX level of beginning with the 2nd DRX level period.Guide the DRX designator that is transformed into the 2nd DRX level though BS has transmitted after transmitting the first data D1, this UE on the time point that the next one the 2nd DRX level begins period from Non-DRX level conversion to the two DRX level.
Next, when being operated in the 2nd DRX level, if UE via the information that first period receives it of scheduling channel in the 2nd DRX level period, then it is transformed into the Non-DRX level once more.
Network and UE can know DRX the level starting point and/or the interval in period in advance.Perhaps network can transmit the information at relevant starting point and/or interval to UE.If the starting point of DRX level and/or interval are set up, then when UE when an incoming level is transformed into another incoming level, can know when this UE is transformed into another incoming level, and from when this UE receives first subframe of new incoming level.Be satisfied from the condition that incoming level is transformed into new incoming level if be used for UE, this UE is transformed into new incoming level immediately, but consistently changes with the starting point of newly-installed incoming level.That is to say that this UE is not that at any time (at any time) is transformed into new incoming level, and be based on the starting point and the interval of each incoming level, new incoming level begins only to be put on the preset time section.
When new DRX level period at first, the UE that has received the second data D2 is from Non-DRX level conversion to a DRX level.When being in incoming level, arrive if be different from the new starting point of the DRX level of current incoming level, then this UE can be transformed into new DRX level from incoming level.For example, when UE was operated in the 2nd DRX level and satisfies certain condition, if the new starting point of a DRX level arrives, then this UE was transformed into a DRX level.Here, this certain condition can be UE does not receive it in the certain hour section in current incoming level a schedule information.
If the starting point of each DRX level is set in advance, though then this UE does not receive designator individually, such as the DRX designator, and the setting of UE and BS is not complementary each other, and this unmatched influence also can be reduced to minimum.Though this UE loses in incoming level and (miss) the DRX designator, the battery supply of this UE waste at most and DRX level period as many.Therefore, the starting point of knowing DRX level period for UE and BS in advance is useful.For this purpose, when certain condition is satisfied, and UE is when being transformed into new DRX level, and this UE is transformed into new DRX level immediately, but need only consistently change with the starting point in new DRX level period.
For example, operation as described below also is admissible.
1) BS is provided with a DRX level period and the 2nd DRX level period of UE.
2) in first subframe in DRX level period, this UE checks that the L1/L2 control channel is to confirm whether data have arrived UE.
3) if data have arrived UE, this UE then
(1) based on schedule information receive data and
(2) before receiving the DRX designator, monitor the L1/L2 control channel continuously, and if BS have data via L1/L2 control channel notice, then receive this data based on schedule information.
(3) if receive the DRX designator, this UE then
1. before a next DRX level arrives period, begin operating in the 2nd DRX level and
2. when being operated in the 2nd DRX, receiving first subframe in each the 2nd DRX level period, and check that the L1/L2 control channel is to confirm whether data have arrived UE.
If confirm that 3. data have arrived UE, then this UE
I) based on schedule information receive these data and
Ii) receive the L1/L2 control channel, up to there not being more data for the UE reception.
If 4. this UE confirms that it is no longer dispatched via the L1/L2 control channel, then UE enters sleep pattern, and interim any one first subframe that at first arrives arrives when the 2nd a DRX level period or a DRX level.
4) if arrive this UE without any data in first subframe in DRX level period, then before first subframe in next DRX level period arrived, this UE was operated in sleep pattern.
When being operated in the DRX level, if go to receive data or notify UE to have the data that will receive via scheduling channel or the like guide UE, then UE is transformed into the Non-DRX level.After this, if this UE receives the DRX designator, then it is transformed into new incoming level, for example, and new DRX level.This UE can upgrade DRX value of setting of current use with the DRX value of setting that receives recently.
BS can notify when begin to apply new DRX value of setting in addition.When UE receives new DRX value of setting, light from the guided time of BS and to use this new value of setting.
In other words, the Non-DRX level be that zero DRX level period is identical.Therefore, if time value is set to zero during the new DRX level of UE, then this UE can be operated in the Non-DRX level, and time value is set up when new DRX level.
Figure 11 illustrates the example that receives the method for data according to another embodiment of the present invention.
With reference to Figure 11, depend on the number and the operation of incoming level, in UE, there are a plurality of operator schemes.In " option one " pattern, this UE has the DRX level and does not have the Non-DRX level of sleep pattern.In " option 2 " pattern, this UE has the DRX level and has the Non-DRX level of sleep pattern.In " option 3 " pattern, this UE has two DRX level and a Non-DRX level.Describe three operator schemes here, but also had the operator scheme more than two or four.
In " option one " pattern, UE woke up on second period in DRX level period.On first subframe in second period in DRX level period, this UE confirms to exist its data via schedule information, and enters the Non-DRX level.This UE receives data during whole second period in DRX level period, UE wakes in this period.If in first subframe in the 3rd period in DRX level period, then this UE is not transformed into the DRX level to its data once more.
In " option 2 " pattern, UE woke up on second period in DRX level period.On first subframe in second period in DRX level period, this UE confirms to exist its data via schedule information, and enters continuous incoming level.When receiving data continuously after waking up, if this UE no longer is scheduled, then it is transformed into sleep pattern immediately.If its data are in first subframe in the 3rd period in DRX level period, then this UE receives data once more continuously.If in first subframe in the 3rd period in DRX level period, then this UE is not transformed into the DRX level to its data once more.
In " option 3 " pattern, UE woke up on second period in DRX level period.On first subframe in second period in DRX level period, this UE confirms to exist its data via schedule information, and enters continuous incoming level.When receiving data continuously after waking up, if this UE no longer is scheduled, then it automatically is transformed into the 2nd DRX level.Next, before a next DRX level began period, this UE received first subframe in each the 2nd DRX level period.If this UE is dispatched in first subframe in the 2nd DRX level period, then it is waken up during whole the 2nd DRX level period and receives data continuously.If in first subframe in the 3rd period in DRX level period, then this UE is not transformed into a DRX level to its data once more.
Hereinafter, a kind of DRX method relevant with ul transmissions described.
Normally, when UE transmitted data or control messages and gives BS, response message was sent from BS immediately.At this moment, it is useful using DRX level or Non-DRX level with short DRX level period.
If this UE transmits data or control messages is given BS, then this UE changes the incoming level that is using.New incoming level can be Non-DRX level or new DRX level.When this UE was transformed into new incoming level after the up continuous transmission of execution, this new incoming level was by definite when setting up calling or rebuilding calling in advance.For example, after a DRX level was carried out ul transmissions, this UE can be transformed into the 2nd DRX level.Alternatively, after a DRX level was carried out ul transmissions, this UE can be transformed into the Non-DRX level.
In the time of UE request distributing radio resource, it can be transformed into the Non-DRX level.For example, if this UE uses RACH, then it can be transformed into the Non-DRX level afterwards in transmission leading (preamble).Distributed to UE via scheduling channel if be used to transmit the Radio Resource of data or control messages, with as the response to RACH, then this UE can be transformed into the 2nd DRX level.
Figure 12 illustrates the example that transmits the method for data according to one embodiment of the invention.
With reference to Figure 12, UE is at a DRX level at first.This UE transmits data DU and gives BS.Transmit data D1 and give after the up link when being operated in a DRX level, this UE is transformed into the 2nd DRX level.Alternatively, depend on setting, this UE can be transformed into the Non-DRX level, and is not transformed into the 2nd DRX level.Time point when UE transmits data and gives up link can be when being transformed into the 2nd DRX level as UE time point identical, perhaps the former can be prior to the latter, perhaps the latter can be prior to the former.
After being transformed into the 2nd DRX level, this UE searches for first subframe of each the 2nd DRX level, and confirms whether its data are sent from BS.After being transformed into the 2nd DRX level, if this UE does not receive any data via scheduling channel from down link in the certain hour section, perhaps do not receive any information via scheduling channel, then this UE is transformed into a DRX level once more.If after ul transmissions, after being transformed into the 2nd DRX level, this UE constantly (endlessly) is operated in the 2nd DRX level, and then it can cause the bad influence to the power consumption of UE.After UE carries out transmission, use timer to calculate this regular hour section, perhaps should the regular hour section can refer to carry out transmit after the number in UE residing the 2nd DRX level period.The regular hour section of UE can be set via call setup or call re-establishment.
When being operated in the 2nd DRX level, this UE can be transformed into a DRX level once more on the starting point in DRX level period.Alternatively, can use the DRX designator.
The step that combines the method for describing with disclosed embodiment herein can make up by hardware, software or its and realize.Hardware can by application-specific integrated circuit (ASIC) (ASIC), Digital Signal Processing (DSP), programmable logic device (PLD), field programmable gate array (FPGA), processor, controller, microprocessor, other electronic unit or its make up and realize that wherein this application-specific integrated circuit (ASIC) is designed to carry out above-described operation.The module that is used to carry out above function can realize software.Software can be stored in the memory cell, and is carried out by processor.It is known various device to those skilled in the art that memory cell or processor can adopt.
The present invention can not break away from its spirit or intrinsic propesties with some forms enforcements, it is also to be understood that, embodiment described above is not subjected to the restriction of any above-described details, unless otherwise mentioned, but should within the spirit and scope that claims limited, be made an explanation widely.Therefore, drop on the border of this claim, perhaps interior all changes and the improvement of the equivalent on border all comprised by claims like this.
Claims (14)
1. one kind is used to allow subscriber equipment (UE) in non-interrupted reception (Non-DRX) level and at least one interrupted method of changing between (DRX) level that receives, the UE that wherein is in the DRX level periodically wakes up to monitor scheduling channel, and described method comprises:
In the Non-DRX level, receive the DRX designator along with monitoring scheduling channel continuously; With
From described Non-DRX level conversion to the DRX level of representing by described DRX designator.
2. according to the process of claim 1 wherein that described DRX designator represents in a plurality of DRX level, described a plurality of DRX level have the DRX level period that differs from one another.
3. according to the process of claim 1 wherein that described DRX designator comprises the DRX level period of described DRX level.
4. according to the process of claim 1 wherein that described DRX designator comprises the time started of described DRX level.
5. one kind is used to the method that allows subscriber equipment (UE) to change between a plurality of incoming levels, and described method comprises:
In first incoming level, receive transitional information; With
Be transformed into second incoming level based on described transitional information from first incoming level.
6. according to the method for claim 5, wherein said first incoming level is the Non-DRX level, and described second incoming level is the DRX level.
7. according to the method for claim 5, wherein said first incoming level is the DRX level, and described second incoming level is the Non-DRX level.
8. according to the method for claim 5, wherein said first incoming level and described second incoming level are the DRX level.
9. according to the method for claim 5, wherein said transitional information is the DRX designator of expression the 2nd DRX level.
10. one kind is used to the method that allows subscriber equipment (UE) to change between a plurality of incoming levels, and described method comprises:
Detect switch condition; With
When detecting switch condition, be transformed into second incoming level from first incoming level, wherein the DRX level of first incoming level is different period with the DRX level of second incoming level period.
11., wherein when receiving the DRX designator of expression second incoming level from network when, detect switch condition according to the method for claim 10.
12. method according to claim 10, wherein in the time of timer expiration, detect switch condition, wherein begin to start timer at first incoming level, and during at the fixed time not when network receives any schedule information, timer expiration.
13., wherein, detect switch condition when being ready to the uplink data and second incoming level when being the Non-DRX level according to the method for claim 10.
14., wherein when UE asks the Radio Resource and second incoming level to be the Non-DRX level, detect switch condition according to the method for claim 10.
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- 2007-10-30 TW TW096140865A patent/TWI426805B/en active
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104081868A (en) * | 2011-11-01 | 2014-10-01 | 高通股份有限公司 | Semi non-DRx mode for wireless communication |
| CN104041142A (en) * | 2012-01-13 | 2014-09-10 | 富士通株式会社 | Radio terminal, wireless communication system, and wireless communication method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101690374B (en) | 2012-12-26 |
| TW200835366A (en) | 2008-08-16 |
| KR20080039177A (en) | 2008-05-07 |
| JP4975823B2 (en) | 2012-07-11 |
| CN101690374A (en) | 2010-03-31 |
| KR20080039176A (en) | 2008-05-07 |
| TWI429311B (en) | 2014-03-01 |
| TWI426805B (en) | 2014-02-11 |
| TW200835367A (en) | 2008-08-16 |
| CN101682591A (en) | 2010-03-24 |
| KR101233181B1 (en) | 2013-02-15 |
| KR100902897B1 (en) | 2009-06-15 |
| JP2010507322A (en) | 2010-03-04 |
| TWI426802B (en) | 2014-02-11 |
| CN101529748B (en) | 2013-03-27 |
| ES2620801T3 (en) | 2017-06-29 |
| CN101682591B (en) | 2012-09-26 |
| TW200836503A (en) | 2008-09-01 |
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