CN103379511A - Control channel processing method and device - Google Patents
Control channel processing method and device Download PDFInfo
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- CN103379511A CN103379511A CN2012101076329A CN201210107632A CN103379511A CN 103379511 A CN103379511 A CN 103379511A CN 2012101076329 A CN2012101076329 A CN 2012101076329A CN 201210107632 A CN201210107632 A CN 201210107632A CN 103379511 A CN103379511 A CN 103379511A
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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 embodiment of the invention provides a control channel processing method and device, aiming to solve the problem of prior arts that user equipment (UE) performs blind detection respectively according to each modulation mode of control channels, which leads to increase of calculation and power consumption of blind detection and thereby reducing calculation and power consumption of blind detection of control channels.
Description
Technical field
The present invention relates to the communication technology, relate in particular to control channel processing method and equipment.
Background technology
At wireless communication system for example: Long Term Evolution (Long Term Evolution, LTE) in the system, because multi-user's multiple-input and multiple-output (Multiple Input Multiple Output, MIMO) and coordinate multipoint (Coordinated Multiple Points, the introducing of technology such as CoMP), so that the control channel capacity is limited, therefore introduce the Physical Downlink Control Channel (Enhanced Physical Downlink Control Channel, ePDCCH) that strengthens.Terminal (User Equipment, UE) when carrying out blind Detecting, can attempt once according to each modulation system of ePDCCH respectively, for example: Quadrature Phase Shift Keying (Quadrature Phase Shift Keying, QPSK) modulation system is the 16QAM modulation system with the quadrature amplitude modulation (Quadrature Amplitude Modulation, QAM) that comprises 16 kinds of symbols.
Yet, because UE carries out blind Detecting according to each modulation system of control channel respectively, so that the operand of blind Detecting and power consumption increase.
Summary of the invention
The embodiment of the invention provides control channel processing method and equipment, in order to operand and the power consumption of the blind Detecting that reduces control channel.
Provide a kind of control channel processing method on the one hand, having comprised:
Terminal receives the demodulated reference signal DMRS sequence that the base station sends;
Described terminal is determined the modulation system corresponding with described DMRS sequence according to the corresponding relation of DMRS sequence and modulation system, and described modulation system is used for the modulation control channel by the base station;
The modulation system that described terminal utilization is corresponding with described DMRS detects described control channel.
Provide a kind of control channel processing method on the one hand, having comprised:
Terminal generates the channel status indication of control channel;
Described terminal sends described channel status indication to the base station, described channel status indication is used for determining the modulation system corresponding with described channel status indication by described base station;
Described terminal is determined the modulation system corresponding with described channel status indication according to the corresponding relation of channel status indication with modulation system;
The modulation system that described terminal utilization is corresponding with described channel status indication detects described control channel.
A kind of control channel processing method is provided on the other hand, has comprised:
The base station is identified for the modulation system of modulation control channel;
Described base station obtains the DMRS sequence corresponding with described modulation system according to the corresponding relation of modulation system and demodulated reference signal DMRS sequence;
Described base station sends described DMRS sequence to terminal, and described DMRS sequence is used for determining the modulation system corresponding with described DMRS sequence by described terminal;
Described base station utilizes described modulation system, modulates described control channel.
A kind of control channel processing method is provided on the other hand, has comprised:
The channel status indication of the control channel that the base station receiving terminal sends;
The modulation system corresponding with described channel status indication determined according to the corresponding relation of channel status indication with modulation system in described base station;
Described base station utilizes described modulation system, modulates described control channel.
A kind of terminal is provided on the other hand, has comprised:
Receiving element is used for receiving the demodulated reference signal DMRS sequence that the base station sends;
Determining unit is used for the corresponding relation according to DMRS sequence and modulation system, determines the modulation system corresponding with described DMRS sequence, and described modulation system is used for the modulation control channel by the base station;
Detecting unit is used for utilizing the modulation system corresponding with described DMRS, and described control channel is detected.
A kind of terminal is provided on the other hand, has comprised:
Generation unit is used for generating the channel status indication of control channel;
Transmitting element is used for sending described channel status indication to the base station, and described channel status indication is used for determining the modulation system corresponding with described channel status indication by described base station;
Determining unit is used for according to the corresponding relation of channel status indication with modulation system, determines the modulation system corresponding with described channel status indication;
Detecting unit is used for utilizing the modulation system corresponding with described channel status indication, and described control channel is detected.
A kind of base station is provided on the other hand, has comprised:
Determining unit is for the modulation system that is identified for the modulation control channel;
Obtain the unit, be used for the corresponding relation according to modulation system and demodulated reference signal DMRS sequence, obtain the DMRS sequence corresponding with described modulation system;
Determining unit is used for sending described DMRS sequence to terminal, and described DMRS sequence is used for determining the modulation system corresponding with described DMRS sequence by described terminal;
Modulating unit is used for utilizing described modulation system, modulates described control channel.
A kind of base station is provided on the other hand, has comprised:
Receiving element is used for the channel status indication of the control channel of receiving terminal transmission;
Determining unit is used for according to the corresponding relation of channel status indication with modulation system, determines the modulation system corresponding with described channel status indication;
Modulating unit is used for utilizing described modulation system, modulates described control channel.
As shown from the above technical solution, the embodiment of the invention can solve in the prior art owing to UE increases according to operand and the power consumption that each modulation system of control channel is carried out the blind Detecting that blind Detecting causes respectively, thereby has reduced operand and the power consumption of the blind Detecting of control channel.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do one to the accompanying drawing of required use in embodiment or the description of the Prior Art and introduce simply, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The schematic flow sheet of the control channel processing method that Fig. 1 provides for one embodiment of the invention;
The schematic flow sheet of the control channel processing method that Fig. 2 provides for another embodiment of the present invention;
The schematic flow sheet of the control channel processing method that Fig. 3 provides for another embodiment of the present invention;
The schematic flow sheet of the control channel processing method that Fig. 4 provides for another embodiment of the present invention;
The structural representation of the terminal that Fig. 5 provides for another embodiment of the present invention;
The structural representation of the terminal that Fig. 6 provides for another embodiment of the present invention;
The structural representation of the terminal that Fig. 7 provides for another embodiment of the present invention;
The structural representation of the base station that Fig. 8 provides for another embodiment of the present invention;
The structural representation of the base station that Fig. 9 provides for another embodiment of the present invention;
The structural representation of the base station that Figure 10 provides for another embodiment of the present invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The technical scheme of the embodiment of the invention, can be applied to various wireless communication systems, for example: global system for mobile communications (Global System for Mobile Communications, GSM), GPRS (General Packet Radio Service, GPRS) system, code division multiple access (Code Division Multiple Access, CDMA) system, the CDMA2000 system, Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access, WCDMA) system, Long Term Evolution (Long Term Evolution, LTE) system or World Interoperability for Microwave Access, WiMax (World Interoperability for Microwave Access, WiMAX) system etc.
The base station, can be base station (the Base Transceiver Station in gsm system, gprs system or the cdma system, BTS), it can also be the base station (NodeB) in CDMA2000 system or the WCDMA system, can also be evolved base station (the Evolved NodeB in the LTE system, eNB), can also be the network elements such as base station (Access Service Network Base Station, ASN BS) of the access service network in the WiMAX network.
The related control channel of the technical scheme of the embodiment of the invention can include but not limited to the Physical Downlink Control Channel (Enhanced Physical Downlink Control Channel, ePDCCH) that strengthens.
The related modulation system of the technical scheme of the embodiment of the invention can include but not limited to Quadrature Phase Shift Keying (Quadrature Phase Shift Keying, QPSK) modulation system, the quadrature amplitude modulation (Quadrature Amplitude Modulation, QAM) that comprises 16 kinds of symbols are that 16QAM modulation system or the QAM that comprises 64 kinds of symbols are the 64QAM modulation system.
The schematic flow sheet of the control channel processing method that Fig. 1 provides for one embodiment of the invention, as shown in Figure 1, the control channel processing method of present embodiment can comprise:
101, UE receives demodulated reference signal (Demodulation Reference Signal, the DMRS) sequence that the base station sends.
Take the LTE system as example, in an optional execution mode of present embodiment, UE receives after the DMRS sequence of eNB transmission, can utilize the local DMRS sequence with in DMRS arrangement set corresponding to ePDCCH that generates to carry out relevant with the DMRS sequence that receives respectively, and then further according to correlated results, determine that the DMRS sequence corresponding to correlation of absolute value maximum is the DMRS sequence that receives.Detailed description can referring to related content of the prior art, repeat no more herein.
102, above-mentioned UE determines the modulation system corresponding with above-mentioned DMRS sequence according to the corresponding relation of DMRS sequence and modulation system, and above-mentioned modulation system is used for the modulation control channel by the base station.
In an optional execution mode of present embodiment, before 102, above-mentioned UE can also further receive the above-mentioned DMRS sequence of above-mentioned base station transmission and the corresponding relation of modulation system.
For example: specifically can control by Radio Resource (Radio Resource Control, RRC) (the Information Element of the information element in the message, IE) carry above-mentioned corresponding relation, described RRC message can be RRC message of the prior art, such as: (RRCCONNECTION RECONFIGURATION) message etc. is reshuffled in the RRC connection, present embodiment does not limit this, expand by the IE to existing RRC message and to carry above-mentioned corresponding relation, perhaps described RRC message also can be for being different from existing RRC message in the prior art.
Again for example: specifically can also carry above-mentioned corresponding relation by increasing new media interviews control (Media Access Control, MAC) control element (Control Element, CE) message.
In an optional execution mode of present embodiment, above-mentioned UE can also obtain above-mentioned corresponding relation according to pre-configured, for example: the agreement agreement.
Take the LTE system as example, in an optional execution mode of present embodiment, the DMRS sequence in the above-mentioned DMRS arrangement set can be produced by default sequence seed, perhaps can also multiply by different signature sequences by same basic sequence and produce.Need to prove: the DMRS sequence in the DMRS arrangement set and the corresponding relation of modulation system can be referring to tables 1.
DMRS sequence in the table 1 DMRS arrangement set and the corresponding relation of modulation system
| DMRS arrangement set x (i) | Modulation system |
| x(0) | QPSK |
| x(1) | 16QAM |
| x(2) | QPSK |
| …… | …… |
103, above-mentioned UE utilizes the modulation system corresponding with above-mentioned DMRS, and above-mentioned control channel is detected.
In the present embodiment, receive the demodulated reference signal DMRS sequence that the base station sends by UE, and then according to the corresponding relation of DMRS sequence and modulation system, determine the modulation system corresponding with above-mentioned DMRS sequence, above-mentioned modulation system is used for the modulation control channel by the base station, so that above-mentioned UE can utilize the modulation system corresponding with above-mentioned DMRS, above-mentioned control channel is detected, can solve in the prior art owing to UE increases according to operand and the power consumption that each modulation system of control channel is carried out the blind Detecting that blind Detecting causes respectively, thereby reduce operand and the power consumption of the blind Detecting of control channel.
The schematic flow sheet of the control channel processing method that Fig. 2 provides for another embodiment of the present invention, as shown in Figure 2, the control channel processing method of present embodiment can comprise:
201, UE generates the channel status indication (Channel Status Indicator, CSI) of control channel.
Take the LTE system as example, in an optional execution mode of present embodiment, UE can according to the situation of change of channel, generate CSI.UE can also further pass through Physical Uplink Control Channel (Physical Uplink Control Channel, PUCCH), periodically feed back to eNB, perhaps can also further pass through Physical Uplink Shared Channel (Physical Uplink Share Channel, PUSCH) aperiodicity feeds back to eNB.Detailed description can referring to related content of the prior art, repeat no more herein.
202, above-mentioned UE sends above-mentioned channel status indication to the base station, and above-mentioned channel status indication is used for determining the modulation system corresponding with above-mentioned channel status indication by above-mentioned base station.
203, above-mentioned UE determines the modulation system corresponding with above-mentioned channel status indication according to the corresponding relation of channel status indication with modulation system.
In an optional execution mode of present embodiment, before 102, above-mentioned UE can also further receive the above-mentioned channel status indication of above-mentioned base station transmission and the corresponding relation of modulation system.
For example: specifically can carry by the IE in the RRC message above-mentioned corresponding relation, described RRC message can be RRC message of the prior art, such as: (RRC CONNECTION RECONFIGURATION) message etc. is reshuffled in the RRC connection, present embodiment does not limit this, expand by the IE to existing RRC message and to carry above-mentioned corresponding relation, perhaps described RRC message also can be for being different from existing RRC message in the prior art.
Again for example: specifically can also carry above-mentioned corresponding relation by increasing new MAC CE message.
In an optional execution mode of present embodiment, above-mentioned UE can also obtain above-mentioned corresponding relation according to pre-configured, for example: the agreement agreement.
Take the LTE system as example, in an optional execution mode of present embodiment, CSI can include but not limited to order indication (Rank Indicator, RI), channel quality indication (Channel Quality Indicator, CQI) and pre-coding matrix indication (Precoding Matrix Indicator, PMI).Need to prove: the corresponding relation of CSI and modulation system can be referring to table 2.
The corresponding relation of table 2 CSI and modulation system
| CSI | Modulation system |
| CSI is less than or equal to predetermined threshold value CSIthreshold | QPSK |
| CSI is greater than predetermined threshold value CSIthreshold | 16QAM |
| …… | …… |
204, above-mentioned UE utilizes the modulation system corresponding with above-mentioned channel status indication, and above-mentioned control channel is detected.
In the present embodiment, generate the channel status indication of control channel by UE, and send above-mentioned channel status indication to the base station, above-mentioned channel status indication is used for determining the modulation system corresponding with above-mentioned channel status indication by above-mentioned base station, and UE is according to the corresponding relation of channel status indication with modulation system, determine the modulation system corresponding with above-mentioned channel status indication, so that above-mentioned UE can utilize the modulation system corresponding with above-mentioned channel status indication, above-mentioned control channel is detected, can solve in the prior art owing to UE increases according to operand and the power consumption that each modulation system of control channel is carried out the blind Detecting that blind Detecting causes respectively, thereby reduce operand and the power consumption of the blind Detecting of control channel.
The schematic flow sheet of the control channel processing method that Fig. 3 provides for another embodiment of the present invention, as shown in Figure 3, the control channel processing method of present embodiment can comprise:
301, the base station is identified for the modulation system of modulation control channel.
Particularly, the base station determines that the method for modulation system can referring to related content of the prior art, repeat no more herein.
302, above-mentioned base station obtains the DMRS sequence corresponding with above-mentioned modulation system according to the corresponding relation of modulation system and DMRS sequence.
303, above-mentioned base station sends above-mentioned DMRS sequence to UE, and above-mentioned DMRS sequence is used for determining the modulation system corresponding with above-mentioned DMRS sequence by above-mentioned UE.
In an optional execution mode of present embodiment, before 303, the base station can also further send the corresponding relation of above-mentioned modulation system and DMRS sequence to above-mentioned UE, and this corresponding relation can be referring to table 1.
304, above-mentioned base station utilizes above-mentioned modulation system, modulates above-mentioned control channel.
In the present embodiment, be identified for the modulation system of modulation control channel by the base station, and then according to the corresponding relation of modulation system and demodulated reference signal DMRS sequence, obtain the DMRS sequence corresponding with above-mentioned modulation system, and send above-mentioned DMRS sequence to UE, above-mentioned DMRS sequence is used for determining the modulation system corresponding with above-mentioned DMRS sequence by above-mentioned UE, so that above-mentioned base station can utilize above-mentioned modulation system, modulate above-mentioned control channel, can solve in the prior art owing to UE increases according to operand and the power consumption that each modulation system of control channel is carried out the blind Detecting that blind Detecting causes respectively, thereby reduce operand and the power consumption of the blind Detecting of control channel.
The schematic flow sheet of the control channel processing method that Fig. 4 provides for another embodiment of the present invention, as shown in Figure 4, the control channel processing method of present embodiment can comprise:
401, the base station receives the channel status indication of the control channel of UE transmission.
Take the LTE system as example, in an optional execution mode of present embodiment, UE can according to the situation of change of channel, generate CSI.UE can also further pass through PUCCH, periodically to the eNB feedback, perhaps can also further feed back to eNB by the PUSCH aperiodicity.Detailed description can referring to related content of the prior art, repeat no more herein.
402, the modulation system corresponding with above-mentioned channel status indication determined according to the corresponding relation of channel status indication with modulation system in above-mentioned base station.
403, above-mentioned base station utilizes above-mentioned modulation system, modulates above-mentioned control channel.
In an optional execution mode of present embodiment, the base station can also further send the corresponding relation of above-mentioned channel status indication and modulation system to above-mentioned UE, and this corresponding relation can be referring to table 2.
In the present embodiment, receive the channel status indication of the control channel of UE transmission by the base station, and then according to the corresponding relation of channel status indication with modulation system, determine the modulation system corresponding with above-mentioned channel status indication, so that above-mentioned base station can utilize above-mentioned modulation system, modulate above-mentioned control channel and can solve in the prior art owing to UE increases according to operand and the power consumption that each modulation system of control channel is carried out the blind Detecting that blind Detecting causes respectively, thereby reduced operand and the power consumption of the blind Detecting of control channel.
Need to prove: for aforesaid each embodiment of the method, for simple description, so it all is expressed as a series of combination of actions, but those skilled in the art should know, the present invention is not subjected to the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in the specification all belongs to preferred embodiment, and related action and module might not be that the present invention is necessary.
In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, do not have the part that describes in detail among certain embodiment, can be referring to the associated description of other embodiment.
The structural representation of the terminal that Fig. 5 provides for another embodiment of the present invention, as shown in Figure 5, the terminal of present embodiment can comprise receiving element 51, determining unit 52 and detecting unit 53.Wherein, receiving element 51 is used for receiving the demodulated reference signal DMRS sequence that the base station sends; The corresponding relation that determining unit 52 is used for according to DMRS sequence and modulation system is determined the modulation system corresponding with above-mentioned DMRS sequence, and above-mentioned modulation system is used for the modulation control channel by the base station; Detecting unit 53 is used for utilizing the modulation system corresponding with above-mentioned DMRS, and above-mentioned control channel is detected.
In an optional execution mode of present embodiment, receiving element 51 can also further receive the above-mentioned DMRS sequence of above-mentioned base station transmission and the corresponding relation of modulation system, determines the modulation system corresponding with above-mentioned DMRS sequence for determining unit 52 according to this corresponding relation.
In the present embodiment, terminal receives the demodulated reference signal DMRS sequence that the base station sends by receiving element, and then by the corresponding relation of determining unit according to DMRS sequence and modulation system, determine the modulation system corresponding with above-mentioned DMRS sequence, above-mentioned modulation system is used for the modulation control channel by the base station, so that detecting unit can utilize the modulation system corresponding with above-mentioned DMRS, above-mentioned control channel is detected, can solve in the prior art owing to terminal increases according to operand and the power consumption that each modulation system of control channel is carried out the blind Detecting that blind Detecting causes respectively, thereby reduce operand and the power consumption of the blind Detecting of control channel.
The structural representation of the terminal that Fig. 6 provides for another embodiment of the present invention, as shown in Figure 6, the terminal of present embodiment can comprise generation unit 61, transmitting element 62, determining unit 63 and detecting unit 64.Wherein, generation unit 61 is used for generating the channel status indication of control channel; Transmitting element 62 is used for sending above-mentioned channel status indication to the base station, and above-mentioned channel status indication is used for determining the modulation system corresponding with above-mentioned channel status indication by above-mentioned base station; Determining unit 63 is used for according to the corresponding relation of channel status indication with modulation system, determines the modulation system corresponding with above-mentioned channel status indication; Detecting unit 64 is used for utilizing the modulation system corresponding with above-mentioned channel status indication, and above-mentioned control channel is detected.
In an optional execution mode of present embodiment, as shown in Figure 7, the terminal that present embodiment provides can further include receiving element 71, for the corresponding relation of the above-mentioned channel status indication that receives the transmission of above-mentioned base station with modulation system, indicate corresponding modulation system for determining unit 63 according to the definite and above-mentioned channel status of this corresponding relation.
In the present embodiment, terminal generates the channel status indication of control channel by generation unit, and send the indication of above-mentioned channel status to the base station by transmitting element, above-mentioned channel status indication is used for determining the modulation system corresponding with above-mentioned channel status indication by above-mentioned base station, and by the corresponding relation of determining unit according to channel status indication and modulation system, determine the modulation system corresponding with above-mentioned channel status indication, so that detecting unit can utilize the modulation system corresponding with above-mentioned channel status indication, above-mentioned control channel is detected, can solve in the prior art owing to terminal increases according to operand and the power consumption that each modulation system of control channel is carried out the blind Detecting that blind Detecting causes respectively, thereby reduce operand and the power consumption of the blind Detecting of control channel.
The structural representation of the base station that Fig. 8 provides for another embodiment of the present invention, as shown in Figure 8, the base station of present embodiment can comprise determining unit 81, obtain unit 82, transmitting element 83 and modulating unit 84.Wherein, determining unit 81 is used for being identified for the modulation system of modulation control channel; Obtain the corresponding relation that unit 82 is used for according to modulation system and demodulated reference signal DMRS sequence, obtain the DMRS sequence corresponding with above-mentioned modulation system; Transmitting element 83 is used for sending above-mentioned DMRS sequence to terminal, and above-mentioned DMRS sequence is used for determining the modulation system corresponding with above-mentioned DMRS sequence by above-mentioned terminal; Modulating unit 84 is used for utilizing above-mentioned modulation system, modulates above-mentioned control channel.
In an optional execution mode of present embodiment, transmitting element 83 can also further send the corresponding relation of above-mentioned modulation system and DMRS sequence to above-mentioned terminal, determine the modulation system corresponding with above-mentioned DMRS sequence for above-mentioned terminal according to this corresponding relation.
In the present embodiment, the base station is identified for the modulation system of modulation control channel by determining unit, and then by obtaining the corresponding relation of unit according to modulation system and demodulated reference signal DMRS sequence, obtain the DMRS sequence corresponding with above-mentioned modulation system, and send above-mentioned DMRS sequence by transmitting element to UE, above-mentioned DMRS sequence is used for determining the modulation system corresponding with above-mentioned DMRS sequence by above-mentioned UE, so that modulating unit can utilize above-mentioned modulation system, modulate above-mentioned control channel, can solve in the prior art owing to terminal increases according to operand and the power consumption that each modulation system of control channel is carried out the blind Detecting that blind Detecting causes respectively, thereby reduce operand and the power consumption of the blind Detecting of control channel.
The structural representation of the base station that Fig. 9 provides for another embodiment of the present invention, as shown in Figure 9, the base station of present embodiment can comprise receiving element 91, determining unit 92 and modulating unit 93.Wherein, receiving element 91 is used for the channel status indication of the control channel of receiving terminal transmission; Determining unit 92 is used for according to the corresponding relation of channel status indication with modulation system, determines the modulation system corresponding with above-mentioned channel status indication; Modulating unit 93 is used for utilizing above-mentioned modulation system, modulates above-mentioned control channel.
In an optional execution mode of present embodiment, as shown in figure 10, the base station that present embodiment provides can further include transmitting element 1001, be used for sending to above-mentioned terminal the corresponding relation of above-mentioned channel status indication and modulation system, indicate corresponding modulation system for above-mentioned terminal according to the definite and above-mentioned channel status of this corresponding relation.
In the present embodiment, indicate by the channel status of the control channel that the receiving element receiving terminal sends the base station, and then by the corresponding relation of determining unit according to channel status indication and modulation system, determine the modulation system corresponding with above-mentioned channel status indication, so that modulating unit can utilize above-mentioned modulation system, modulate above-mentioned control channel and can solve in the prior art owing to UE increases according to operand and the power consumption that each modulation system of control channel is carried out the blind Detecting that blind Detecting causes respectively, thereby reduced operand and the power consumption of the blind Detecting of control channel.
The those skilled in the art can be well understood to, and is the convenience described and succinct, the system of foregoing description, and the specific works process of device and unit can with reference to the corresponding process among the preceding method embodiment, not repeat them here.
In several embodiment that the application provides, should be understood that, disclosed system, apparatus and method can realize by another way.For example, device embodiment described above only is schematic, for example, the division of described unit, only be that a kind of logic function is divided, during actual the realization other dividing mode can be arranged, for example a plurality of unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, the shown or coupling each other discussed or direct-coupling or communication connection can be by some interfaces, indirect coupling or the communication connection of device or unit can be electrically, machinery or other form.
Described unit as separating component explanation can or can not be physically to separate also, and the parts that show as the unit can be or can not be physical locations also, namely can be positioned at a place, perhaps also can be distributed on a plurality of network element.Can select according to the actual needs wherein some or all of unit to realize the purpose of present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in the processing unit, also can be that the independent physics of unit exists, and also can be integrated in the unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, the form that also can adopt hardware to add SFU software functional unit realizes.
The above-mentioned integrated unit of realizing with the form of SFU software functional unit can be stored in the computer read/write memory medium.Above-mentioned SFU software functional unit is stored in the storage medium, comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the part steps of the described method of each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (Read-Only Memory, ROM), the various media that can be program code stored such as random access memory (Random Access Memory, RAM), magnetic disc or CD.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (16)
1. a control channel processing method is characterized in that, comprising:
Terminal receives the demodulated reference signal DMRS sequence that the base station sends;
Described terminal is determined the modulation system corresponding with described DMRS sequence according to the corresponding relation of DMRS sequence and modulation system, and described modulation system is used for the modulation control channel by the base station;
The modulation system that described terminal utilization is corresponding with described DMRS detects described control channel.
2. method according to claim 1 is characterized in that, described terminal determines that according to the corresponding relation of DMRS sequence and modulation system described method also comprises before the modulation system corresponding with described DMRS sequence:
Described terminal receives the described DMRS sequence of described base station transmission and the corresponding relation of modulation system.
3. a control channel processing method is characterized in that, comprising:
Terminal generates the channel status indication of control channel;
Described terminal sends described channel status indication to the base station, described channel status indication is used for determining the modulation system corresponding with described channel status indication by described base station;
Described terminal is determined the modulation system corresponding with described channel status indication according to the corresponding relation of channel status indication with modulation system;
The modulation system that described terminal utilization is corresponding with described channel status indication detects described control channel.
4. method according to claim 3 is characterized in that, described terminal determines that according to the corresponding relation of channel status indication with modulation system described method also comprises before the modulation system corresponding with described channel status indication:
Described terminal receives the described channel status indication of described base station transmission and the corresponding relation of modulation system.
5. a control channel processing method is characterized in that, comprising:
The base station is identified for the modulation system of modulation control channel;
Described base station obtains the DMRS sequence corresponding with described modulation system according to the corresponding relation of modulation system and demodulated reference signal DMRS sequence;
Described base station sends described DMRS sequence to terminal, and described DMRS sequence is used for determining the modulation system corresponding with described DMRS sequence by described terminal;
Described base station utilizes described modulation system, modulates described control channel.
6. method according to claim 5 is characterized in that, described method also comprises:
Described base station sends the corresponding relation of described modulation system and DMRS sequence to described terminal.
7. a control channel processing method is characterized in that, comprising:
The channel status indication of the control channel that the base station receiving terminal sends;
The modulation system corresponding with described channel status indication determined according to the corresponding relation of channel status indication with modulation system in described base station;
Described base station utilizes described modulation system, modulates described control channel.
8. method according to claim 7 is characterized in that, described method also comprises:
Described base station sends the corresponding relation of described channel status indication and modulation system to described terminal.
9. a terminal is characterized in that, comprising:
Receiving element is used for receiving the demodulated reference signal DMRS sequence that the base station sends;
Determining unit is used for the corresponding relation according to DMRS sequence and modulation system, determines the modulation system corresponding with described DMRS sequence, and described modulation system is used for the modulation control channel by the base station;
Detecting unit is used for utilizing the modulation system corresponding with described DMRS, and described control channel is detected.
10. terminal according to claim 9 is characterized in that, described receiving element also is used for
Receive the described DMRS sequence of described base station transmission and the corresponding relation of modulation system.
11. a terminal is characterized in that, comprising:
Generation unit is used for generating the channel status indication of control channel;
Transmitting element is used for sending described channel status indication to the base station, and described channel status indication is used for determining the modulation system corresponding with described channel status indication by described base station;
Determining unit is used for according to the corresponding relation of channel status indication with modulation system, determines the modulation system corresponding with described channel status indication;
Detecting unit is used for utilizing the modulation system corresponding with described channel status indication, and described control channel is detected.
12. terminal according to claim 11 is characterized in that, described terminal also comprises receiving element, is used for
Receive the described channel status indication of described base station transmission and the corresponding relation of modulation system.
13. a base station is characterized in that, comprising:
Determining unit is for the modulation system that is identified for the modulation control channel;
Obtain the unit, be used for the corresponding relation according to modulation system and demodulated reference signal DMRS sequence, obtain the DMRS sequence corresponding with described modulation system;
Transmitting element is used for sending described DMRS sequence to terminal, and described DMRS sequence is used for determining the modulation system corresponding with described DMRS sequence by described terminal;
Modulating unit is used for utilizing described modulation system, modulates described control channel.
14. base station according to claim 13 is characterized in that, described transmitting element also is used for sending to described terminal the corresponding relation of described modulation system and DMRS sequence.
15. a base station is characterized in that, comprising:
Receiving element is used for the channel status indication of the control channel of receiving terminal transmission;
Determining unit is used for according to the corresponding relation of channel status indication with modulation system, determines the modulation system corresponding with described channel status indication;
Modulating unit is used for utilizing described modulation system, modulates described control channel.
16. base station according to claim 15 is characterized in that, described base station also comprises transmitting element, is used for
Send the corresponding relation of described channel status indication and modulation system to described terminal.
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| CN109245844A (en) * | 2017-06-30 | 2019-01-18 | 华为技术有限公司 | Wireless communications method, apparatus and system |
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| CN109245844B (en) * | 2017-06-30 | 2020-11-03 | 华为技术有限公司 | Wireless communication method, device and system |
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