CN101161003B - Method for reducing power consumption of mobile terminal - Google Patents
Method for reducing power consumption of mobile terminal Download PDFInfo
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- CN101161003B CN101161003B CN2006800123058A CN200680012305A CN101161003B CN 101161003 B CN101161003 B CN 101161003B CN 2006800123058 A CN2006800123058 A CN 2006800123058A CN 200680012305 A CN200680012305 A CN 200680012305A CN 101161003 B CN101161003 B CN 101161003B
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- 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
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Abstract
The present invention discloses a method for reducing the power consumption of the mobile terminal, and the method comprises the procedures of: arranging random one multicasting service mapping information element corresponding to one multicasting service to indicate the frame position of the next multicasting service mapping information element corresponding to this kind of multicasting service; transmitting the multicasting service mapping information element and the corresponding multicasting service data by the base station to the mobile terminal; obtaining the multicasting service data by the mobile terminal according to the received multicasting service mapping information element, and setting the sleeping time length itself according to the frame position of the next multicasting service mapping information element indicated by the multicasting service mapping information element; and receiving the next multicasting service mapping information element and the corresponding multicasting service data by the mobile terminal after sleeping time length. The invention causes that the mobile terminal needs not receive the multicasting service mapping information thereby increasing the sleeping time of the mobile terminal and reducing the power consumption of the mobile terminal.
Description
Technical field
The present invention relates to mobile communication technology, particularly relate to a kind of method that in multicast broadcast service, reduces power consumption of mobile terminal.
Background of invention
Multicast and broadcast (MBS, Multicast and Broadcast Service) business provides the point-to-multipoint service standard that is sent data in the mobile network by a data source of network side to a plurality of portable terminals, realized that Internet resources are shared, improved utilization rate of network resource, the utilance of the interface resource of especially eating dishes without rice or wine.In addition, the MBS business can not only realize the classes of messages multicast and the broadcasting of plain text low rate, and can also realize the multicast and the broadcasting of high-speed multimedia business, has complied with the trend of following mobile data development, therefore, has vast potential for future development.
In the MBS business,, the sleep pattern of portable terminal has been proposed in order to reduce the power consumption of portable terminal.Portable terminal is in sleep state in the length of one's sleep of making an appointment with the base station in the length, the temporary transient interruption and the getting in touch of base station of eating dishes without rice or wine, neither send and also do not receive any business information, and only in the time of intercept length of making an appointment with the base station, be in the state of intercepting, normal receiving multicast traffic data.As seen, the sleep pattern by portable terminal can reduce the transmission request of portable terminal on up link and down link, thereby reduces the power consumption of portable terminal.
In the MBS business, when portable terminal was in sleep pattern, portable terminal can come the receiving multicast traffic data by non-macro diversity mode.Under non-macro diversity mode, in order to make portable terminal can accurately receive cast service data, the base station can issue downlink resource allocations (DL_MAP) message of carrying multicast service mapping information element (MBS_MAP_IE) to portable terminal simultaneously at the frame that issues cast service data to portable terminal constantly.Wherein, the form of MBS_MAP_IE can be joined and is shown in Table 1.
| Syntax | Size(bits) | Notes |
| MBS_MAP_IE{ | -- | -- |
| Extended-2DIUC | 4 | The DIUC type of expansion |
| Length | 8 | MBS_MAP_IE length |
| MBS Zone identifier | 7 | The MBS area identification connects the sign that BS provides when initial |
| Macro diversity enhanced | 1 | Grand diversity strengthens the grand diversity of the non-grand diversity zone 1=of indication: 0=zone |
| If(Macro diversity enhanced＝1){ |
| Syntax | Size (bits) | Notes |
| Permutation | 2 | The optional FUSC substitute mode of 0b00=PUSC substitute mode 0b01=FUSC substitute mode 0b10=0b11=adjacent sub-carrier substitute mode |
| Idcell | 6 | Cell ID |
| OFDMA Symbol Offset | 7 | MBS zone starting point relatively and the OFDMA symbol offset amount of this frame starting point. |
| DIUC change indication | 1 | DIUC changes indication |
| If (DIUC change indication=1) | -- | -- |
| Reserved | 1 | Reservation bit |
| Boosting | 3 | Power gain 000: not gain; 001:+6dB; 010:-6dB; 011:+9dB; 100:+3dB; 101:-3dB; 110:-9dB; 111:-12dB |
| DIUC | 3 | -- |
| No.Subchannels | 4 | The subchannel number that MBS_MAP message takies. |
| NO.OFDMA symbols | 2 | The OFDMA symbol numbers that MBS_MAP message takies. |
| Repetition Coding Indication | 2 | Coding repeats indication: 0b00-and does not repeat 4 0b11-repetitions of 2 0b10-repetitions of 0b01-repetition 6 times |
| Syntax | Size (bits) | Notes |
| } | -- | -- |
| Else{ | ||
| DIUC | 4 | -- |
| CID | 12 | Low 12 in the multicast hyphen |
| OFDMA Symbol Offset | 8 | The multicast service of CID correspondence is with respect to the OFDMA symbol offset amount of this frame starting point. |
| Subchannel offset | 6 | The multicast service of CID correspondence is with respect to the subchannel offset amount of this frame starting point. |
| Boosting | 3 | Power gain 000: not gain; 001:+6dB; 010:-6dB; 011:+9dB; 100:+3dB; 101:-3dB; 110:-9dB; 111:-12dB |
| SLC_3_indication | 1 | The sleep indication information |
| NO.OFDMA Symbols | 6 | The OFDMA symbol numbers that the multicast service of CID correspondence takies. |
| NO.Subchannels | 6 | The subchannel number that the multicast service of CID correspondence takies. |
| Repetition Coding Indication | 2 | Coding repeats indication: 0b00-and does not repeat 4 0b11-repetitions of 2 0b10-repetitions of 0b01-repetition 6 times |
| If (SLC_3_indication=1) | -- | -- |
| Syntax | Size (bits) | Notes |
| Next MBS frame offset | 8 | The next one comprises the frame shifting amount of the frame of MBS_MAP message with respect to this frame. |
| Next MBS OFDMA Symbol offset | 8 | Next MBS_MAP message phase |
| OFDMA symbol offset amount for the starting point of its place frame | ||
| } | -- | -- |
| } | -- | -- |
| (byte boundary) { | -- | -- |
| Padding Nibble | Be supplemented to the Byte border | |
| } | ||
| } |
Table 1
Referring to table 1, adopt sleep pattern and during by non-macro diversity mode receiving multicast traffic data, parameter OFDMA Symbol Offset and the Subchannel offset that is used to indicate concrete multiplaying service resource carried in the base station in the MBS_MAP_IE that portable terminal issues at portable terminal.Wherein, parameter OFDMA Symbol Offset indicates the symbol offset position of this cast service data in the notebook data frame, parameter S ubchannel offset indicates the deviation post of this cast service data in notebook data frame sub-channels, the symbol numbers that parameter N O.OFDMA Symbols has indicated this multicast service to take, the subchannel number that parameter N O.Subchannels has indicated this multicast service to take.Like this, portable terminal then can obtain this multiplaying service resource according to parameter OFDMA Symbol Offset, Subchannel offset, NO.OFDMA Symbols and NO.Subchannels, accurately receives this cast service data.
Referring to table 1, adopt sleep pattern and during at portable terminal by non-macro diversity mode receiving multicast traffic data, parameter S LC_3_indication=1 has also been carried in the base station in the MBS_MAP_IE that portable terminal issues, be used to represent that portable terminal adopts sleep pattern and needs the follow-up multicast service of indication to shine upon the frame position of (MBS_MAP) message, and, the parameter N ext MBSframe offset and the Next MBS OFDMA Symbol offset that are used to indicate follow-up MBS_MAP message sink position in MBS_MAP_IE, have correspondingly been carried, wherein, parameter N ext MBSframe offset is used to indicate the frame shifting amount of follow-up MBS_MAP message with respect to the notebook data frame, parameter N ext MBS OFDMA Symbol offset is used to indicate follow-up MBS_MAP symbol of message position, and promptly follow-up MBS_MAP message is with respect to the symbol offset amount of the frame head of the frame that comprises this MBS_MAP.Like this, portable terminal is according to parameter N extMBS frame offset among this MBS_MAP_IE and Next MBS OFDMA Symbol offset, then can in subsequent process, initiatively wake up and intercept MBS_MAP message, and determine multiplaying service resource next time according to the relevant information of carrying in this MBS_MAP message, so that obtain cast service data next time.
As can be seen from the above description, in the prior art, adopt sleep pattern and during by non-macro diversity mode receiving multicast traffic data, the indication of repetition has been carried out in the base station to multiplaying service resource at portable terminal.This be because, can be among this MBS_MAP_IE that issues in the base station by the definition of parameter S LC_3_indication=1, the frame position that shows the next MBS_MAP message of needs indication, and indicated the receiving position of follow-up MBS_MAP message by parameter N ext MBS frame offset and Next MBS OFDMA Symboloffset, and the follow-up MBS_MAP message of further passing through to be issued is indicated multiplaying service resource next time to portable terminal, correspondingly, portable terminal then must be waken up in subsequent process and be received described follow-up MBS_MAP message, obtains multiplaying service resource next time by this MBS_MAP message; Yet, in the MBS_MAP_IE that the base station issues next time, still can indicate this multiplaying service resource next time by parameter OFDMA Symbol Offset and Subchannel offset, as seen, the indication that repeats has been carried out to multiplaying service resource in the base station.And for portable terminal, not only need wake up and obtain multiplaying service resource in the moment that receives MBS_MAP_IE, but also must wake up and obtain multiplaying service resource once more in the moment that receives MBS_MAP message, and but the multiplaying service resource that is obtained is repetition, therefore, reduce the length of one's sleep of portable terminal meaninglessly, increased the power consumption of portable terminal, reduced the one-movement-freedom-degree of portable terminal.
Summary of the invention
Main purpose of the present invention is to provide a kind of method that reduces power consumption of mobile terminal, increases the length of one's sleep of portable terminal, reduces the power consumption of portable terminal.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of method that reduces power consumption of mobile terminal, this method may further comprise the steps:
A, in any one multicast service mapping information element of a kind of multicast service of correspondence the frame offset parameter is set, this frame offset parameter indication is to the next multicast service mapping information element that should the plant multicast service frame shifting amount with respect to this any one multicast service mapping information element;
B, base station are carried at the value of frame offset parameter in the multicast service mapping information element and are sent to portable terminal;
C, portable terminal obtain cast service data according to the multicast service mapping information element that receives, and obtain the value of frame offset parameter in the received multicast service mapping information element, the pairing time span of the value of this frame offset parameter is set to the length length of one's sleep of self;
D, portable terminal receive and obtain described next multicast service mapping information element and corresponding cast service data after length of one's sleep length.
Described multicast service mapping information element is carried at and is sent to portable terminal in the downstream message, and wherein, described downstream message is downlink resource allocations message or self-defining message;
In step D, described portable terminal receives the step that obtains next multicast service mapping information element and comprises: portable terminal receives and carries the downstream message of described next multicast service mapping information element, obtains described next multicast service mapping information element according to the indication information unit's type of carrying in the downstream message and the parameter of information word length from this downstream message.
When described downstream message is downlink resource allocations message,
The step that described portable terminal obtains next multicast service mapping information element comprises: portable terminal is resolved the downlink resource allocations message that receives, value at the down channel spacing identification sign indicating number that parses an information word correspondence is 15, and when the value of the expanded downstream channel spacing identification code of this information word correspondence is 0x00, portable terminal obtains the information word length parameter in this information word, then with this information word as described next multicast service mapping information element, and obtain this next one multicast service mapping information element according to the information word length parameter that is obtained.
Described steps A further comprises: in any one multicast service mapping information element of a kind of multicast service of correspondence symbol offset parameter and information word length parameter are set, wherein, symbol offset parameter indication is to the next multicast service mapping information element that should the plant multicast service symbol offset amount with respect to frame head in its place frame, and the indication of information word length parameter is to the physical length of the next multicast service mapping information element that should plant multicast service;
Described step B further comprises: the base station is carried at the value of the value of symbol offset parameter and information word length parameter in the multicast service mapping information element and is sent to portable terminal;
Described step C further comprises: portable terminal obtains the value of symbol offset parameter in the received multicast service mapping information element and the value of information word length parameter;
In step D, the step that described portable terminal receives next multicast service mapping information element comprises: portable terminal obtains described next multicast service mapping information element according to the value of the symbol offset parameter that is obtained and the value reception of information word length parameter.
Described step C further comprises: portable terminal obtains in the received multicast service mapping information element value of indication cast service data length parameter, then with the pairing time span of value of the pairing time span of value of the information word length parameter that obtained and this indication cast service data length parameter be set to time of intercept length;
In step D, portable terminal receives described next multicast service mapping information element and cast service data in set time of intercept length.
Described steps A further comprises: indicating mobile terminal only obtains multiplaying service resource according to the multicast service mapping information element parameter is set in any one multicast service mapping information element of a kind of multicast service of correspondence;
In step C, the step that described portable terminal obtains cast service data according to the multicast service mapping information element that receives comprises: portable terminal only obtains the parameter of multiplaying service resource according to the multicast service mapping information element according to indicating mobile terminal in the received multicast service mapping information element, from received multicast service mapping information element, parse the symbol offset position, subchannel offset position of cast service data, shared OFDMA symbol numbers and shared subchannel number, obtain cast service data.
The described indicating mobile terminal that is provided with only comprises according to the step that the multicast service mapping information element is obtained the parameter of multiplaying service resource: multicast service mapping information element Central Plains is defined as the parameter that needs the follow-up multicast service mapping message frame position of indication, redefines the receiving position of indicating next multicast service mapping information element for need.
The described indicating mobile terminal that is provided with only comprises according to the step that the multicast service mapping information element is obtained the parameter of multiplaying service resource: in the multicast service mapping information element, increase a self-defining parameter, should self-defining parameter-definition for needing indicate next multicast service mapping information element receiving position.
Described steps A further comprises: in any one multicast service mapping information element of a kind of multicast service of correspondence, deletion is used to indicate the parameter of follow-up multicast service mapping message frame position and character position.
In step C, the described length length of one's sleep that self is set comprises: portable terminal is provided with the length time limit of the sleep window that self need not to receive data;
In step D, described the length of one's sleep length comprise later: after the sleep window expiration.
As seen, adopt sleep pattern and during by non-macro diversity mode receiving multicast traffic data, the method for the present invention's proposition has the following advantages at portable terminal:
1, in the present invention, by in MBS_MAP_IE, removing each parameter of the follow-up MBS_MAP message of indication, and the increase indication only needs obtain according to next MBS_MAP_IE the parameter of multiplaying service resource, and the parameter of indicating the concrete frame position of next MBS_MAP_IE, make portable terminal need not to receive again follow-up MBS_MAP message, and only obtain multiplaying service resource by receiving each MBS_MAP_IE, thereby increased the length of one's sleep of portable terminal, reduced the power consumption of portable terminal.
2, in the present invention, the MBS_MAP_IE middle finger shows the information word length of next MBS_MAP_IE and the next MBS_MAP_IE symbol amount of bias with respect to frame head in its place frame, thereby help portable terminal the time of intercept length of self is set, make portable terminal need not to receive to comprise the whole frame downstream message of MBS_MAP_IE, receive only the next MBS_MAP_IE that obtains in the downstream message, thereby further reduced the power consumption of portable terminal, and simplified the processing procedure of portable terminal, reduced the processing complexity of portable terminal.
3, in the present invention, in MBS_MAP_IE, removed each parameter of indicating follow-up MBS_MAP message, made that the base station need not to send MBS_MAP message to portable terminal again, therefore, saved interface-free resources and improved bandwidth efficiency.
Brief Description Of Drawings
Fig. 1 is the flow chart that reduces power consumption of mobile terminal in the embodiment of the invention 1.
Fig. 2 is the flow chart that reduces power consumption of mobile terminal in the embodiment of the invention 2.
Implement mode of the present invention
For making the purpose, technical solutions and advantages of the present invention express clearlyer, the present invention is further described in more detail below in conjunction with drawings and the specific embodiments.
Adopt sleep pattern and during at portable terminal by non-macro diversity mode receiving multicast traffic data, because the DL_MAP message that the base station can issue cast service data and carry MBS_MAP_IE to portable terminal simultaneously, therefore, issue the moment of MBS_MAP_IE in the base station, for the receiving multicast traffic data, portable terminal must be waken up and be received MBS_MAP_IE, can not reduce the length of one's sleep of portable terminal meaninglessly.And in the prior art, portable terminal also must issue the moment of MBS_MAP message in the base station and wake up, so that obtain multiplaying service resource, and be to obtain by the MBS_MAP_IE in the DL_MAP message fully by the multiplaying service resource that MBS_MAP message is obtained.As seen, for portable terminal, MBS_MAP message is actually the message of a redundancy, portable terminal only need obtain the MBS_MAP_IE that the base station issues each time, just can guarantee to obtain concrete each time multiplaying service resource, thereby normally receive the cast service data that the base station issues each time.
At these characteristics, the present invention proposes a kind of method that reduces power consumption of mobile terminal, its core concept is: any one MBS_MAP_IE that corresponding a kind of multicast service is set indicates the frame position to the next MBS_MAP_IE that should plant multicast service; MBS_MAP_IE and corresponding cast service data are sent to portable terminal; Portable terminal obtains cast service data according to the MBS_MAP_IE that receives, and according to the frame position of the indicated next MBS_MAP_IE of the MBS_MAP_IE that receives the length length of one's sleep of self is set; Portable terminal receives next MBS_MAP_IE and cast service data after length of one's sleep length.
Wherein, when realization was sent to portable terminal with MBS_MAP_IE, the present invention was carried at MBS_MAP_IE in the downstream message to be sent to portable terminal.This downstream message can be that original DL_MAP message also can be the self-defining message of the present invention.
And, in order to guarantee that portable terminal can accurately receive described next MBS_MAP_IE in the length of one's sleep after the length, there are two kinds of concrete execution modes in the present invention: mode one, the frame offset parameter of the described next MBS_MAP_IE of indication is set in described any one MBS_MAP_IE, symbol offset parameter and information word length parameter, and the value of in the MBS_MAP_IE that sends to portable terminal, carrying the frame offset parameter of next MBS_MAP_IE, the value of the value of symbol offset parameter and information word length parameter, portable terminal is after length of one's sleep length, receive only this next one MBS_MAP_IE that obtains in the downstream message according to the value of the symbol offset parameter of next MBS_MAP_IE and the value of information word length parameter, rather than receive the downstream message of whole frame; Mode two, portable terminal receive the downstream message of whole frame, and by the parsing to downstream message, obtain next MBS_MAP_IE from downstream message.
In addition, need to prove that in the present invention, related MBS_MAP_IE and cast service data are all at the pairing multicast service of same multicast connection identifiers.
Below then at the present invention guarantee portable terminal the length of one's sleep length receive later two kinds of execution modes of next MBS_MAP_IE, for an embodiment complete implementation procedure of the present invention is described respectively.
Embodiment 1:
Fig. 1 is the flow chart that reduces power consumption of mobile terminal in the embodiment of the invention 1.Referring to Fig. 1, adopt sleep pattern and during by non-macro diversity mode receiving multicast traffic data, the process that the present invention reduces power consumption of mobile terminal specifically may further comprise the steps at portable terminal:
Step 101: in MBS_MAP_IE, indicating mobile terminal only obtains multiplaying service resource according to MBS_MAP_IE parameter is set.
Here, because in the prior art, parameter S LC_3_indication=1 is used to represent that portable terminal adopts sleep pattern also to need the frame position of the follow-up MBS_MAP message of indication, that is to say, this parameter S LC_3_indication=1 can receive redundant MBS_MAP message by indicating mobile terminal in subsequent process, and obtains multiplaying service resource once more according to MBS_MAP message.Therefore, receive redundant MBS_MAP message for fear of portable terminal, in this step, in MBS_MAP_IE, indicating mobile terminal only obtains multiplaying service resource according to MBS_MAP_IE parameter is set, specific implementation is:
Original parameter S LC_3_indication=1 among the MBS_MAP_IE is redefined, parameter S LC_3_indication=1 is set, be used to the receiving position of representing that portable terminal adopts sleep pattern and needs to indicate next MBS_MAP_IE; Perhaps, directly delete parameter S LC_3_indication, and increase the receiving position that a self-defining parameter is used to represent portable terminal employing sleep pattern and needs the next MBS_MAP_IE of indication.
Like this, only obtain the parameter of multiplaying service resource according to MBS_MAP_IE by the set indicating mobile terminal of this step, the base station then can need not to send MBS_MAP message to portable terminal again, and the parameter of only carrying the next MBS_MAP_IE of indication in MBS_MAP_IE gets final product, portable terminal then can be known the MBS_MAP message that need not to receive again redundancy, receives only next MBS_MAP_IE and gets final product.
Step 102: in MBS_MAP_IE, deletion is used to indicate the parameter N ext MBS frame offset and the Next MBS OFDMA Symboloffset of the concrete receiving position of MBS_MAP message.
Step 103: in MBS_MAP_IE, the frame offset parameter of the next MBS_MAP_IE frame position of indication is set.
Here, by the frame offset parameter of the next MBS_MAP_IE frame position of indication is set, indicate the frame shifting amount of next MBS_MAP_IE with respect to this frame MBS_MAP_IE.Such as, can indicate the frame offset parameter of next MBS_MAP_IE to be set to NextMBS_MAP_IE frame offset.
Step 104: in MBS_MAP_IE, the symbol offset parameter of the next MBS_MAP_IE of indication is set.
Here, by the symbol offset parameter of the next MBS_MAP_IE of indication is set, indicate next MBS_MAP_IE to comprise the symbol offset amount of the frame head of this MBS_MAP_IE frame with respect to the next one.Such as, can indicate the symbol offset parameter of next MBS_MAP_IE to be set to Next MBS_MAP_IE OFDMA Symbol offset.
Step 105: in MBS_MAP_IE, the information word length parameter of the next MBS_MAP_IE physical length of indication is set.
Here, by the information word length parameter of the next MBS_MAP_IE physical length of indication is set, the concrete length of indicating next MBS_MAP_IE makes portable terminal that the time of intercept length of self can be set according to this concrete frame length.Such as, in this step, can information word frame length parameter be set to Next MBS_MAP_IE Length.
To step 105, the present invention has removed to indicate among the MBS_MAP_IE and has utilized each parameter of follow-up MBS_MAP message, and has increased the parameter of indicating the concrete receiving position of next MBS_MAP_IE and this information word length by step 101.
So far, also just correspondingly obtained a MBS_MAP_IE who redefines, its concrete form can be joined and is shown in Table 2.
| Syntax | Size (bits) | Notes |
| MBS_MAP_IE{ | -- | -- |
| Extended-2DIUC | 4 | The DIUC type of expansion |
| Length | 8 | MBS_MAP_IE length |
| MBS Zone identifier | 7 | The MBS area identification connects the sign that BS provides when initial |
| Macro diversity enhanced | 1 | Grand diversity strengthens the grand diversity of the non-grand diversity zone 1=of indication: 0=zone |
| If (Macro diversity enhanced=1) | ||
| Permutation | 2 | The optional FUSC substitute mode of 0b00=PUSC substitute mode 0b01=FUSC substitute mode 0b10= |
| 0b11=adjacent sub-carrier substitute mode | ||
| Idcell | 6 | Cell ID |
| OFDMA Symbol Offset | 7 | MBS zone starting point relatively and the OFDMA symbol offset amount of this frame starting point. |
| DIUC change indication | 1 | DIUC changes indication |
| If (DIUC change indication=1) | -- | -- |
| Syntax | Size (bits) | Notes |
| Reserved | 1 | Reservation bit |
| Boosting | 3 | Power gain 000: not gain; 001:+6dB; 010:-6dB; 011:+9dB; 100:+3dB; 101:-3dB; 110:-9dB; 111:-12dB |
| DIUC | 3 | -- |
| No.Subchannels | 4 | The subchannel number that MBS_MAP message takies. |
| NO.OFDMA symbols | 2 | The OFDMA symbol numbers that MBS_MAP message takies. |
| Repetition Coding Indication | 2 | Coding repeats indication: 0b00-and does not repeat 4 0b11-repetitions of 2 0b10-repetitions of 0b01-repetition 6 times |
| } | -- | -- |
| Else{ | ||
| DIUC | 4 | -- |
| CID | 12 | Low 12 in the multicast hyphen |
| OFDMA Symbol Offset | 8 | The multicast service of CID correspondence is with respect to the OFDMA symbol offset amount of this frame starting point. |
| Subchannel offset | 6 | The multicast service of CID correspondence is with respect to the subchannel offset amount of this frame starting point. |
| Syntax | Size (bits) | Notes |
| Boosting | 3 | Power gain 000: not gain; 001:+6dB; 010:-6dB; 011:+9dB; 100:+3dB; 101:-3dB; |
| 110:-9dB; 111:-12dB | ||
| SLC_3_indication | 1 | The sleep indication information |
| NO.OFDMA Symbols | 6 | The OFDMA symbol numbers that the multicast service of CID correspondence takies. |
| NO.Subchannels | 6 | The subchannel number that the multicast service of CID correspondence takies. |
| Repetition Coding Indication | 2 | Coding repeats indication: 0b00-and does not repeat 4 0b11-repetitions of 2 0b10-repetitions of 0b01-repetition 6 times |
| If (SLC_3_indication=1) | ||
| Next MBS_MAP_IE frame offset | 8 | The next MBS_MAP_IE place frame of multicast service of indicating this CID correspondence is with respect to the skew frame number of this frame |
| Next MBS_MAP_IE OFDMA Symbol offset | 8 | Indicate this CID correspondence multicast service next MBS_MAP_IE with respect to the frame head position of its place frame OFDMA symbol offset number |
| Next MBS_MAP_IE Length | 8 | Indicate the length of next MBS_MAP_IE of the multicast service of this CID correspondence |
| } | ||
| } |
| Syntax | Size(bits) | Notes |
| if！(byte boundary){ | ||
| Padding Nibble | ||
| } | ||
| } |
Table 2
Step 106: send the frame moment of cast service data to portable terminal in the base station, downstream message and cast service data that MBS_MAP_IE will be carried in the base station are sent to portable terminal.
Here, described downstream message can be that existing DL_MAP message also can be the self-defining message of the present invention.
In addition, in this step, the value of the frame offset parameter of indicating next MBS_MAP_IE has been carried in the base station in MBS_MAP_IE, indicate the value of the symbol offset parameter of next MBS_MAP_IE, and the value of indicating the information word length parameter of next MBS_MAP_IE physical length.
Step 107: portable terminal obtains MBS_MAP_IE from downstream message, only obtain the parameter of multiplaying service resource according to MBS_MAP_IE according to indicating mobile terminal among this MBS_MAP_IE, such as being parameter S LC_3_indication=1, know and to obtain multiplaying service resource according to this MBS_MAP_IE rather than follow-up MBS_MAP message, then obtain this concrete cast service data according to parameter OFDMA Symbol Offset, Subchannel offset, NO.OFDMA Symbols and NO.Subchannels among this MBS_MAP_IE.
Here, portable terminal obtains the symbol offset position of cast service data in these frame data by parameter OFDMA Symbol Offset, obtain the subchannel offset position of cast service data in this frame by parameter S ubchannel offset, obtain the OFDMA symbol numbers that cast service data takies by parameter N O.OFDMA Symbols, obtain the subchannel number that cast service data takies by parameter N O.Subchannels, thereby accurately receive cast service data.
Step 108: portable terminal only obtains the parameter of multiplaying service resource according to MBS_MAP_IE according to indicating mobile terminal among the MBS_MAP_IE that receives and indicates the value of next MBS_MAP_IE frame offset parameter that the length length of one's sleep of self is set.
Here, portable terminal only obtains the parameter of multiplaying service resource according to MBS_MAP_IE according to indicating mobile terminal among the MBS_MAP_IE that receives, such as being the parameter S LC_3_indication=1 shown in the table 2, know that need not to receive in subsequent process MBS_MAP message obtains multiplaying service resource once more, that is to say, the frame that need not to send in the base station MBS_MAP message goes to intercept this MBS_MAP message constantly, can keep sleep state; And, portable terminal is according to the parameter value of the next MBS_MAP_IE frame offset parameter of indication among the MBS_MAP_IE that receives, such as the value that is the parameter N ext MBS_MAP_IE frame offset shown in the table 2, obtain the frame shifting amount of next MBS_MAP_IE, the length length of one's sleep of self is set according to the pairing time span of this frame shifting amount with respect to this frame MBS_MAP_IE.Such as, the value of Next MBS_MAP_IE frame offset is 6, then portable terminal can know that the frame position of next MBS_MAP_IE is the moment of 6 frames after this frame MBS_MAP_IE, then portable terminal can self the length length of one's sleep be set to the time span of 6 frames, promptly guarantee from the time span of 6 frames, being in sleep state, thereby minimizing power consumption, and after the time span of 6 frames, be that next MBS_MAP_IE can be in the state of intercepting when arriving, accurately receive next MBS_MAP_IE.
Step 109: portable terminal obtains next MBS_MAP_IE in the symbol offset position of its place frame with respect to frame head according to the value of the parameter of the next MBS_MAP_IE symbol biasing of indicating mobile terminal among the MBS_MAP_IE that receives.
Here, such as obtaining the symbol offset amount of the character position of next MBS_MAP_IE by the parameter value of the Next MBS_MAP_IE OFDMA Symboloffset shown in the table 2 with respect to the frame head that comprises this MBS_MAP_IE frame.
Step 110: portable terminal obtains the physical length of next MBS_MAP_IE according to the value of the information word length parameter of the next MBS_MAP_IE of indicating mobile terminal among the MBS_MAP_IE that receives, and obtain the physical length of cast service data according to the value of the parameter of indication cast service data length among the MBS_MAP_IE, the time of intercept length of self is set according to the physical length of the physical length of the next MBS_MAP_IE that is obtained and cast service data then.
Here, the parameter such as indication cast service data length among the MBS_MAP_IE is the parameter N O.OFDMA Symbols shown in the table 2.In addition, physical length according to next MBS_MAP_IE, then express portable terminal and in subsequent process, received the shared length of next MBS_MAP_IE, that is to say, portable terminal can be provided with the time of intercept length of self according to the length of next MBS_MAP_IE, and need not to receive the whole frame message that comprises MBS_MAP_IE.
Step 111: portable terminal is in sleep state in the length of one's sleep that self is provided with in the length, and getting in touch of eat dishes without rice or wine temporary transient interruption and base station neither sends and also do not receive any message.
Step 112: portable terminal after set length of one's sleep length, promptly in the time of intercept length that self is provided with, receive next MBS_MAP_IE and the cast service data sent to the base station.
Here, because being the frame shifting amount time corresponding length of next MBS_MAP_IE, portable terminal is set to the length length of one's sleep, therefore, portable terminal just in time is the moment that the described downstream message that carries next MBS_MAP_IE arrives after set length of one's sleep length.
And, in this step, portable terminal receives the process obtain next MBS_MAP_IE: determine to receive the concrete character position of this next one MBS_MAP_IE with respect to the symbol offset position of frame head according to this next one MBS_MAP_IE that has obtained in its place frame, receive at determined concrete character position place according to the information word length of this next one MBS_MAP_IE that has obtained then and obtain this next one MBS_MAP_IE.
Embodiment 2:
Fig. 2 is the flow chart that reduces power consumption of mobile terminal in the embodiment of the invention 2.Referring to Fig. 2, adopt sleep pattern and during by non-macro diversity mode receiving multicast traffic data, the process that the present invention reduces power consumption of mobile terminal specifically may further comprise the steps at portable terminal:
Step 201～step 203 is all identical with all descriptions of step 101～step 103.
Step 204: send the frame moment of cast service data to portable terminal in the base station, downstream message and cast service data that MBS_MAP_IE will be carried in the base station are sent to portable terminal.
Here, described downstream message can be that existing DL_MAP message also can be the self-defining message of the present invention.
In addition, in this step 204, the difference of the MBS_MAP_IE that carries in the downstream message in the step 106 among MBS_MAP_IE that carries in the downstream message and the embodiment 1 is: in the step 106, not only carry the value of the frame offset parameter of the next MBS_MAP_IE of indication among the MBS_MAP_IE, and, also carry the value of the symbol offset parameter of indicating next MBS_MAP_IE and the value of information word length parameter; In this step 204, only carried the value of the frame offset parameter of indicating next MBS_MAP_IE among the MBS_MAP_IE.
Step 205～step 206 is all identical with all descriptions of step 107～step 108.
Step 207 is all identical with all descriptions of step 111.
Step 208: portable terminal receives downstream message that carries next MBS_MAP_IE and the cast service data that send the base station after set length of one's sleep length.
Step 209: portable terminal obtains next MBS_MAP_IE from the downstream message that receives, and obtains cast service data according to this next one MBS_MAP_IE.
Here, portable terminal obtains described next MBS_MAP_IE from this downstream message process is: portable terminal is resolved all the elements in the downstream message that receives, and resolves the described next MBS_MAP_IE that obtains carrying in the downstream message according to the parameter of each type of information element of the indication of carrying in the downstream message and information word length.
Such as, described in the present embodiment downstream message is a DL_MAP message, owing to include a plurality of information words in the DL_MAP message, each information word identifies by down channel spacing identification sign indicating number (DIUC), and when DIUC is 15, represent that each current information word is the information word of expansion, MBS_MAP_IE is in the extend information unit, and each extend information unit further indicates by expanded downstream channel spacing identification code (Extended DIUC), and the Extended DIUC of MBS_MAP_IE correspondence is 0x00, " 0x " expression 16 systems herein.Like this, in this step, portable terminal obtains described next MBS_MAP_IE from DL_MAP message process is: portable terminal is resolved the DL_MAP message that receives, when the DIUC that parses an information word correspondence is 15, portable terminal determines that then this information word is an extend information unit, then when the Extended DIUC that further parses this extend information unit correspondence is 0x00, portable terminal determines that then this extend information unit is MBS_MAP_IE, parameter L ength according to indication information word length among determined this MBS_MAP_IE obtains the length of this MBS_MAP_IE then, thereby obtains described next MBS_MAP_IE.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a method that reduces power consumption of mobile terminal is characterized in that, this method may further comprise the steps:
A, in any one multicast service mapping information element of a kind of multicast service of correspondence the frame offset parameter is set, this frame offset parameter indication is to the next multicast service mapping information element that should the plant multicast service frame shifting amount with respect to this any one multicast service mapping information element;
B, base station are carried at the value of frame offset parameter in the multicast service mapping information element and are sent to portable terminal;
C, portable terminal obtain cast service data according to the multicast service mapping information element that receives, and obtain the value of frame offset parameter in the received multicast service mapping information element, the pairing time span of the value of this frame offset parameter is set to the length length of one's sleep of self;
D, portable terminal receive and obtain described next multicast service mapping information element and corresponding cast service data after length of one's sleep length.
2. method according to claim 1 is characterized in that, described multicast service mapping information element is carried at and is sent to portable terminal in the downstream message, and wherein, described downstream message is downlink resource allocations message or self-defining message;
In step D, described portable terminal receives the step that obtains next multicast service mapping information element and comprises: portable terminal receives and carries the downstream message of described next multicast service mapping information element, obtains described next multicast service mapping information element according to the indication information unit's type of carrying in the downstream message and the parameter of information word length from this downstream message.
3. method according to claim 2 is characterized in that, when described downstream message is downlink resource allocations message,
The step that described portable terminal obtains next multicast service mapping information element comprises: portable terminal is resolved the downlink resource allocations message that receives, value at the down channel spacing identification sign indicating number that parses an information word correspondence is 15, and when the value of the expanded downstream channel spacing identification code of this information word correspondence is 0x00, portable terminal obtains the information word length parameter in this information word, then with this information word as described next multicast service mapping information element, and obtain this next one multicast service mapping information element according to the information word length parameter that is obtained.
4. method according to claim 1, it is characterized in that, described steps A further comprises: in any one multicast service mapping information element of a kind of multicast service of correspondence symbol offset parameter and information word length parameter are set, wherein, symbol offset parameter indication is to the next multicast service mapping information element that should the plant multicast service symbol offset amount with respect to frame head in its place frame, and the indication of information word length parameter is to the physical length of the next multicast service mapping information element that should plant multicast service;
Described step B further comprises: the base station is carried at the value of the value of symbol offset parameter and information word length parameter in the multicast service mapping information element and is sent to portable terminal;
Described step C further comprises: portable terminal obtains the value of symbol offset parameter in the received multicast service mapping information element and the value of information word length parameter;
In step D, the step that described portable terminal receives next multicast service mapping information element comprises: portable terminal obtains described next multicast service mapping information element according to the value of the symbol offset parameter that is obtained and the value reception of information word length parameter.
5. method according to claim 4, it is characterized in that, described step C further comprises: portable terminal obtains in the received multicast service mapping information element value of indication cast service data length parameter, then with the pairing time span of value of the pairing time span of value of the information word length parameter that obtained and this indication cast service data length parameter be set to time of intercept length;
In step D, portable terminal receives described next multicast service mapping information element and cast service data in set time of intercept length.
6. according to any described method in the claim 1 to 5, it is characterized in that described steps A further comprises: indicating mobile terminal only obtains multiplaying service resource according to the multicast service mapping information element parameter is set in any one multicast service mapping information element of a kind of multicast service of correspondence;
In step C, the step that described portable terminal obtains cast service data according to the multicast service mapping information element that receives comprises: portable terminal only obtains the parameter of multiplaying service resource according to the multicast service mapping information element according to indicating mobile terminal in the received multicast service mapping information element, from received multicast service mapping information element, parse the symbol offset position, subchannel offset position of cast service data, shared OFDMA symbol numbers and shared subchannel number, obtain cast service data.
7. method according to claim 6, it is characterized in that, the described indicating mobile terminal that is provided with only comprises according to the step that the multicast service mapping information element is obtained the parameter of multiplaying service resource: multicast service mapping information element Central Plains is defined as the parameter that needs the follow-up multicast service mapping message frame position of indication, redefines the receiving position of indicating next multicast service mapping information element for need.
8. method according to claim 6, it is characterized in that, the described indicating mobile terminal that is provided with only comprises according to the step that the multicast service mapping information element is obtained the parameter of multiplaying service resource: in the multicast service mapping information element, increase a self-defining parameter, should self-defining parameter-definition for needing indicate next multicast service mapping information element receiving position.
9. method according to claim 1, it is characterized in that, described steps A further comprises: in any one multicast service mapping information element of a kind of multicast service of correspondence, deletion is used to indicate the parameter of follow-up multicast service mapping message frame position and character position.
10. method according to claim 1 is characterized in that, in step C, the described length length of one's sleep that self is set comprises: portable terminal is provided with the length time limit of the sleep window that self need not to receive data;
In step D, described the length of one's sleep length comprise later: after the sleep window expiration.
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| CN200510079980.X | 2005-06-27 | ||
| CN200510079980 | 2005-06-27 | ||
| CN200510085375.3 | 2005-07-26 | ||
| PCT/CN2006/001346 WO2007000099A1 (en) | 2005-06-27 | 2006-06-15 | A method of reducing power consumption of mobile terminal |
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| CNA2008101096843A Division CN101557560A (en) | 2005-07-26 | 2006-06-15 | Method for reducing power consumption of mobile terminal |
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| CN1541492A (en) * | 2001-08-10 | 2004-10-27 | Ħ��������˾ | Method and appts. for extending communication unit battery life |
| US6856603B1 (en) * | 1999-03-19 | 2005-02-15 | Robert Bosch Gmbh | Process, control center, and terminal equipment for transmitting messages to terminal equipment in a telecommunications system |
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| CN1541492A (en) * | 2001-08-10 | 2004-10-27 | Ħ��������˾ | Method and appts. for extending communication unit battery life |
| WO2003069933A1 (en) * | 2002-02-12 | 2003-08-21 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. | Central processing unit, auxiliary unit and method for communication |
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