WO2015089745A1 - Method and network device for obtaining and configuring sub-frame structure - Google Patents
Method and network device for obtaining and configuring sub-frame structure Download PDFInfo
- Publication number
- WO2015089745A1 WO2015089745A1 PCT/CN2013/089713 CN2013089713W WO2015089745A1 WO 2015089745 A1 WO2015089745 A1 WO 2015089745A1 CN 2013089713 W CN2013089713 W CN 2013089713W WO 2015089745 A1 WO2015089745 A1 WO 2015089745A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- subframe
- information
- network device
- channel
- structure information
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 68
- 230000005540 biological transmission Effects 0.000 claims description 60
- 230000011664 signaling Effects 0.000 claims description 50
- 239000013256 coordination polymer Substances 0.000 claims description 41
- 238000001514 detection method Methods 0.000 claims description 18
- 230000007480 spreading Effects 0.000 claims description 16
- 125000004122 cyclic group Chemical group 0.000 claims description 11
- 238000005259 measurement Methods 0.000 claims 4
- 238000004891 communication Methods 0.000 abstract description 37
- 230000000875 corresponding effect Effects 0.000 description 13
- 238000012512 characterization method Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000593 degrading effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
- H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
Definitions
- the present invention relates to the field of communications, and in particular, to a method for acquiring and configuring a subframe structure and a network device.
- the subframe of the communication system includes orthogonal frequency division multiplexing for transmitting data in user communication.
- the subframe structure includes the subframe included The number of OFDM symbols and the length of the CP before each OFDM symbol.
- the degree of adaptation of the subframe structure and channel propagation characteristics in the communication system determines the performance of the communication system; the more the subframe structure is adapted to the channel propagation characteristics, the higher the performance of the communication system.
- the length of the CP in the subframe structure is related to the delay spread.
- the delay spread of the user propagation environment for the user with large delay spread, the user in a residential building is taken as an example, the user on the lower floor. Since there are many obstructions and more reflections and refractions, the delay spread is relatively large.
- the length of the CP included in the subframe in which the user is scheduled should be correspondingly larger; For users with small delay spread, such as users on high floors, the occlusion is relatively small, and the probability of the line of sight (LOS) is relatively high, so the delay spread is relatively small, so the user is scheduled.
- the CP of the subframe should be correspondingly smaller, avoiding waste of network resources and low communication rate; therefore, the fixed subframe structure has low adaptability to users with different channel propagation characteristics, thereby causing low performance of the communication system.
- the subframe structure of the current mobile network is a fixed subframe structure.
- the network device communicates with the configured subframe structure.
- the inventors have found that the prior art has at least the following drawbacks: With a fixed subframe structure, the sub-frame structure has low adaptability to current channel propagation characteristics, thereby degrading communication system performance.
- the present invention provides a method and a device for acquiring and configuring a subframe structure, which implements dynamic acquisition and configuration of a subframe structure, so that the subframe structure is more adapted to current channel propagation characteristics, thereby improving communication system performance.
- a method for obtaining a subframe structure including
- the first network device acquires subframe structure information of the first subframe
- the subframe structure information includes one or more of the following information: a number of OFDM symbols included in the subframe, each of the The length of the symbol of OFDM, the length of the cyclic prefix CP of each of the OFDM symbols, the length of the guard interval, and the downlink pilot slot
- DwPTS Downlink Pilot Time Slot
- UPPTS Uplink Pilot Time Slot
- the subframe structure information is sent to the first network device in a signaling form specific to the first network device;
- the subframe structure information is sent to the first network device group in a multicast manner, where the first network device group includes Q first network devices, where the Q is greater than or equal to 2.
- the first network device acquires the subframe structure information of the first subframe, including,
- the first network device detects information of the first N OFDM symbols of the first subframe to obtain subframe structure information of the first subframe, where the N is a positive integer greater than or equal to 1.
- the fourth aspect in the first aspect In a possible implementation manner, the first network device detects information about the first N OFDM symbols of the first subframe, and obtains subframe structure information of the first subframe, where
- the first network device detects a physical control format indicator channel (PCFICH) transmitted in the first N OFDM symbols of the first subframe to obtain subframe structure information of the first subframe;
- PCFICH physical control format indicator channel
- the first network device detects a PCFICH-like channel transmitted in the first N OFDM symbols of the first subframe to obtain subframe structure information of the first subframe, where the PCFICH-like channel is associated with the PCIFCH Channels with similar structures but different transmission resource locations;
- the first network device detects a Physical Hybrid ARQ Indicator Channel (PHICH) or a PHICH-like channel transmitted in the first N OFDM symbols of the first subframe to acquire the first sub-sub Sub-frame structure information of the frame, where the PHICH-like channel is a channel with a different resource location than the PHICH structure;
- PHICH Physical Hybrid ARQ Indicator Channel
- the first network device detects a physical downlink control channel (PDCCH) transmitted in the first N OFDM symbols of the first subframe to obtain subframe structure information of the first subframe.
- a physical downlink control channel (PDCCH) transmitted in the first N OFDM symbols of the first subframe to obtain subframe structure information of the first subframe.
- PDCCH physical downlink control channel
- the method further includes
- the high layer signaling includes first indication information, where the first subframe is used to indicate that the first subframe is a fixed configuration subframe or a variable configuration subframe;
- the first network device detects that the PCFICH transmitted in the first OFDM symbol of the first subframe acquires the subframe structure information of the first subframe, and includes: determining, according to the first indication information, The first subframe is a fixed configuration subframe, and the first network device detects the transmission in the first N OFDM symbols of the first subframe.
- the PCFICH is configured to parse the PCFICH into the number of symbols occupied by the PDCCH; if the first subframe is determined to be a variable configuration subframe according to the first indication information, the first network device detects the first subframe Transmitted within the first N OFDM symbols of the frame
- the PCFICH parses the PCFICH into subframe structure information of the first subframe, and the number of symbols occupied by the PDCCH indicated by the PCFICH is fixed.
- the first network device detects the first N of the first subframe
- the PDCCH transmitted in the OFDM symbol acquires the subframe structure information of the first subframe
- the first network device detects information in downlink control information (DCI) in a PDCCH common search interval transmitted in the first N OFDM symbols of the first subframe to obtain the first subframe.
- DCI downlink control information
- the first network device detects the scrambling code information of the DCI in the PDCCH common search interval transmitted in the first N symbols of the first subframe or its Cyclic Redundancy Check (CRC)
- the scrambling code acquires subframe structure information of the first subframe.
- the acquiring, by the first network device, the subframe structure information of the first subframe includes:
- the first network device detects information of a last 0 F D M symbol of a previous subframe of the first subframe to obtain subframe structure information of the first subframe.
- the acquiring, by the first network device, the subframe structure information of the first subframe includes:
- the first network device detects a channel of a Primary Synchronization Signal (PSS) of the first subframe or a channel of a secondary synchronization signal (SSS) or a channel of a PSS-like channel or SSS Acquiring the subframe structure information of the first subframe by using correlation detection, where the PSS-like channel is similar to the PSS channel structure but different in transmission resource location Channel, the similar SSS channel is a channel similar to the SSS channel structure but with different transmission resource locations.
- PSS Primary Synchronization Signal
- SSS secondary synchronization signal
- the acquiring, by the first network device, the subframe structure information of the first subframe includes:
- the first network device detects the pilot information of the first subframe to obtain the subframe structure information of the first subframe, where the pilot information includes one or more of the following pilots: Cell-specific RS (CRS), Channel State Information Reference Signal (CSI-RS), Demodulation Reference Signal (DMRS).
- CRS Cell-specific RS
- CSI-RS Channel State Information Reference Signal
- DMRS Demodulation Reference Signal
- the first network device detects pilot information of the first subframe, and acquires the first sub Subframe structure information of the frame, including,
- the first network device detects the pilot information of the first subframe, the scrambling code information of the I. or the spreading code information, and acquires subframe structure information of the first subframe;
- the first network device detects pilot information of at least two OFDM symbols of the first subframe, and acquires subframe structure information of the first subframe by correlation detection.
- the first network device acquires subframe structure information of the first subframe, including,
- the first network device detects the rank information of the first subframe to obtain the subframe structure information of the first subframe, where different rank information corresponds to different subframe structures;
- the first network device detects the reference signal receiving power (RSRP) information of the first subframe to obtain the structure information of the first subframe, where different intervals of the RSRP information are located Corresponds to different subframe structures.
- RSRP reference signal receiving power
- a method for configuring a subframe structure including: Transmitting the subframe structure information of the first subframe to the first network device, so that the first network device acquires subframe structure information of the first subframe, where the subframe structure of the first subframe
- the information is a feature description of the subframe structure of the first subframe that needs to be configured.
- the subframe structure information includes one or more of the following information: a number of OFDM symbols included in the subframe, each of the The length of the symbol of OFDM, the length of the CP of each of the OFDM symbols, the length of the guard time interval, the length of the DwPTS, and the length of the UPPTS.
- the subframe structure information is sent to the first network device in a signaling form specific to the first network device;
- the subframe structure information is sent to the first network device group in a multicast manner, where the first network device group includes Q first network devices, where the Q is greater than or equal to 2.
- the sending, by the first subframe, the subframe structure information to the first network device the sending, by the first subframe, the subframe structure information to the first network device
- the subframe structure information of the first subframe is used before the first subframe Transmitting, to the first network device, an information bearer of the N OFDM symbols, where the subframe structure information of the first subframe is sent to the PCFICH bearer transmitted in the first N OFDM symbols of the first subframe The first - network equipment;
- Subframe structure information of the first subframe is used by the first N of the first subframe
- the PCFICH-like channel bearer transmitted in the OFDM symbol is sent to the first network device, where the PCFICH-like channel is a channel similar to the PCIFCH structure but different in transmission resource location;
- the channel is a channel with a different resource location than the PHICH structure
- the method further includes
- the high layer signaling includes first indication information, where the first subframe is used to indicate that the first subframe is a fixed configuration subframe or a variable configuration subframe;
- the subframe structure information of the first subframe is sent to the first network device by using a physical control format indication channel PCFICH transmitted in the first N OFDM symbols of the first subframe, where
- the PCFICH is used to indicate a symbol occupied by the PDCCH
- the subframe structure information of the first subframe is used before the first subframe Transmitting, by the PDCCH bearer transmitted in the N OFDM symbols, to the first network device,
- Subframe structure information of the first subframe is used by the first N of the first subframe Transmitting an information bearer in the DCI in the PDCCH common search interval that is transmitted in the OFDM symbol to the first network device;
- the sending, by the first subframe, the subframe structure information to the first network device includes:
- the sending, by the first subframe, the subframe structure information to the first network device the sending, by the first subframe, the subframe structure information to the first network device
- the PS S-like channel is a channel similar to the PS S channel structure but different in transmission resource location
- the similar SSS channel is a channel similar to the SSS channel structure but different in transmission resource location.
- the sending, by the first subframe, the subframe structure information to the first network device the sending, by the first subframe, the subframe structure information to the first network device
- the sub-frame structure information of the first subframe is used by the first subframe Transmitting a frequency information bearer to the first network device,
- Subframe structure information of the first subframe is used by at least two of the first subframes
- the pilot information bearer of the OFDM symbol is transmitted to the first network device.
- a third aspect providing a first network device, including,
- An acquiring unit configured to acquire subframe structure information of the first subframe
- the acquiring unit is further configured to: acquire, according to the indication of the subframe structure information of the first subframe, a subframe structure of the first subframe, where the subframe structure information of the first subframe is the A characterization of the subframe structure of the first subframe.
- the subframe structure information includes one or more of the following information: a number of OFDM symbols included in the subframe, each The length of the symbol of OFDM, the length of the CP of each of the OFDM symbols, the length of the guard time interval, the length of the DwPTS, and the length of the UPPTS.
- the subframe structure information is sent to the first network device in a signaling form specific to the first network device;
- the subframe structure information is sent to the first network device group in a multicast manner, where the first network device group includes Q first network devices, where the Q is greater than or equal to 2.
- the acquiring unit is specifically configured to:
- the acquiring unit is specifically configured to:
- the first network device further includes
- a receiving unit configured to receive the high layer signaling sent by the second network device, where the high layer signaling includes first indication information, where the first subframe is used to indicate that the first subframe is a fixed configuration subframe or a variable configuration subframe.
- the acquiring unit is specifically configured to:
- the first network device detects a PCFICH transmitted in the first N OFDM symbols of the first subframe, and parses the PCFICH. The number of symbols occupied by the PDCCH;
- the first network device detects a PCFICH transmitted in the first N OFDM symbols of the first subframe, and the PCFICH is used.
- the subframe structure information of the first subframe is parsed, and the number of symbols occupied by the PDCCH indicated by the PCFICH is fixed.
- the acquiring unit is specifically configured to:
- the acquiring unit is specifically configured to:
- the acquiring unit is specifically configured to:
- the acquiring unit is specifically configured to:
- pilot information of the first subframe Detecting the pilot information of the first subframe to obtain the subframe structure information of the first subframe, where the pilot information includes one or more of the following pilots: CRS, CSI-RS, DMRS.
- the acquiring unit is specifically used to:
- the acquiring unit is specifically configured to:
- a second network device including:
- a sending unit configured to send the subframe structure information of the first subframe to the first network device, so that the first network device acquires subframe structure information of the first subframe, where the first sub
- the subframe structure information of the frame is a feature description of the subframe structure of the first subframe to be configured.
- the subframe structure information includes one or more of the following information: a number of OFDM symbols included in the subframe, each of the The length of the symbol of OFDM, the length of the CP of each of the OFDM symbols, the length of the guard time interval, the length of the DwPTS, and the length of the UPPTS.
- the subframe structure information is sent to the first network device in a signaling form specific to the first network device;
- the subframe structure information is sent to the first network device group in a multicast manner, where the first network device group includes Q first network devices, where the Q is greater than or equal to 2.
- the sending unit is specifically configured to:
- the sending unit is specifically configured to:
- the channel is a channel with a different resource location than the PHICH structure
- the sending unit is further configured to:
- the high layer signaling includes first indication information, where the first subframe is used to indicate that the first subframe is a fixed configuration subframe or a variable configuration subframe;
- the unit is specifically used,
- the PCFICH is used to indicate a symbol occupied by the PDCCH
- the first subframe is a variable configuration subframe, transmitting, by using the PCFICH bearer transmitted in the first N OFDM symbols of the first subframe, to the first The number of symbols occupied by the PDCCH indicated by the PCFICH is fixed.
- the sending unit is specifically configured to:
- the bearer is sent to the first network device.
- the sending unit is specifically configured to:
- the sending unit is specifically configured to:
- the PS S-like channel is a channel similar to the PS S channel structure but different in transmission resource location
- the similar SSS channel is a channel similar to the SSS channel structure but different in transmission resource location.
- the sending unit is specifically configured to:
- the sending unit is specifically configured to:
- a first network device including:
- a processor configured to acquire subframe structure information of the first subframe;
- the processor is further configured to acquire, according to the indication of the subframe structure information of the first subframe, a subframe structure of the first subframe, where the subframe structure information of the first subframe is the A characterization of the subframe structure of the first subframe.
- the subframe structure information includes one or more of the following information: a number of OFDM symbols included in the subframe, each The length of the symbol of OFDM, the length of the CP of each of the OFDM symbols, the length of the guard time interval, the length of the DwPTS, and the length of the UPPTS.
- the subframe structure information is sent to the first network device in a signaling form specific to the first network device;
- the subframe structure information is sent to the first network device group in a multicast manner, where the first network device group includes Q first network devices, where the Q is greater than or equal to 2.
- the processor is specifically configured to:
- the first network device further includes
- a receiver configured to receive the high layer signaling sent by the second network device, where the high layer signaling includes first indication information, where the first subframe is a fixed configuration subframe or a variable configuration subframe;
- the processor is specifically configured to:
- the first network device detects a PCFICH transmitted in the first N OFDM symbols of the first subframe, and parses the PCFICH. The number of symbols occupied by the PDCCH;
- the first network device detects a PCFICH transmitted in the first N OFDM symbols of the first subframe, and the PCFICH is used.
- the subframe structure information of the first subframe is parsed, and the number of symbols occupied by the PDCCH indicated by the PCFICH is fixed.
- the processor is specifically configured to:
- pilot information of the first subframe Detecting the pilot information of the first subframe to obtain the subframe structure information of the first subframe, where the pilot information includes one or more of the following pilots: CRS, CSI-RS, DMRS.
- the processor is specifically configured to:
- a second network device including a transmitter and a processor, Medium,
- a transmitter configured to send the subframe structure information of the first subframe to the first network device, so that the first network device acquires subframe structure information of the first subframe, where
- the subframe structure information of one subframe is a feature description of the subframe structure of the first subframe to be configured.
- the subframe structure information includes one or more of the following information: a number of OFDM symbols included in the subframe, each The length of the symbol of OFDM, the length of the CP of each of the OFDM symbols, the length of the guard time interval, the length of the DwPTS, and the length of the UPPTS.
- the subframe structure information is sent to the first network device in a signaling form specific to the first network device;
- the subframe structure information is sent to the first network device group in a multicast manner, where the first network device group includes Q first network devices, where the Q is greater than or equal to 2.
- the subframe structure information of the first subframe is carried by information of the first N OFDM symbols of the first subframe, where N is a positive integer greater than or equal to 1.
- Submesh structure information of the first subframe is carried by a PCFICH transmitted in the first N OFDM symbols of the first subframe;
- Submesh structure information of the first subframe is carried by a PCFICH-like channel transmitted in the first N OFDM symbols of the first subframe, where the similar
- the channel of the PCFICH is a channel similar to the PCIFCH structure but having different transmission resource locations;
- Submesh structure information of the first subframe is carried by a PHICH or a PHICH-like channel transmitted in the first N OFDM symbols of the first subframe, where the PHICH-like channel is transmitted similarly to the PHICH structure.
- the location of the resource is different;
- the subframe structure information of the first subframe is carried by the PDCCH transmitted in the first N OFDM symbols of the first subframe.
- the high layer signaling includes first indication information, where the first subframe is used to indicate that the first subframe is a fixed configuration subframe or a variable configuration subframe;
- the PCFICH is used to indicate a symbol occupied by the PDCCH
- the subframe structure information of the first subframe is carried by the PCFICH transmitted in the first N OFDM symbols of the first subframe.
- Submesh structure information of the first subframe is carried by information in a DCI in the PDCCH common search interval transmitted in the first N OFDM symbols of the first subframe;
- Submesh structure information of the first subframe is carried by information of a last symbol of a previous subframe of the first subframe.
- Submesh structure information of the first subframe is carried by a channel of a PSS of the first subframe or a channel of an SSS or a channel of a PSS or a channel of an SSS, where the PSS-like channel is
- the PS S channel structure is similar but the transmission resource location is different, and the similar SSS channel is a channel similar to the SSS channel structure but different in transmission resource location.
- the subframe structure information of the first subframe is carried by the pilot information of the first subframe, where the pilot information includes one or more of the following pilots: CRS, CSI-RS , DMRS.
- the subframe structure information of the first subframe is carried by pilot information of at least two OFDM symbols of the first subframe.
- the present invention provides a method for acquiring and configuring a subframe structure, and a network device, which acquires subframe structure information of a first subframe by using a first network device, and acquires a first subframe according to an indication of subframe structure information of the first subframe.
- Subframe structure The dynamic acquisition and configuration of the subframe structure are implemented, so that the subframe structure is more adapted to the current channel propagation characteristics, thereby improving the performance of the communication system, and solving the fixed subframe structure used in the prior art, the subframe structure and the current channel propagation.
- the characteristic is low in adaptability, which leads to a defect in the performance of the communication system.
- FIG. 1 is a schematic flowchart of a method for acquiring a subframe structure according to an embodiment of the present invention
- FIG. 1B is a schematic diagram of a channel scenario according to an embodiment of the present invention.
- FIG. 2 is a schematic flowchart of a method for transmitting a subframe structure according to an embodiment of the present invention
- FIG. 3 is a schematic structural diagram of a device of a first network device according to an embodiment of the present disclosure
- FIG. 4 is a schematic structural diagram of a device of a second network device according to an embodiment of the present disclosure
- FIG. 5 is a schematic structural diagram of another apparatus of a first network device according to an embodiment of the present disclosure.
- FIG. 6 is a schematic structural diagram of another apparatus of a second network device according to an embodiment of the present invention.
- Embodiment 1 of the present invention A method for obtaining a subframe structure is provided in Embodiment 1 of the present invention. Referring to FIG. 1A, the method may include:
- the first network device acquires subframe structure information of the first subframe.
- the information included in the subframe structure information of the first subframe is a description of a feature of a subframe structure of the first subframe, and the subframe structure information may include one of the following information. Or a plurality of: the number of OFDM symbols included in the subframe, the length of the symbol of each OFDM, the length of the CP of each OFDM symbol, the length of the guard interval, the length of the DwPTS, the length of the UPPTS; the first subframe structure
- the content of the information included in the information depends on the type of the first subframe and the portion of the first subframe that needs to be adjusted. The present invention does not specifically limit this.
- the subframe structure information may be sent to the first network device in a signaling manner specific to the first network device; or may be sent to the first network device group in a multicast manner, for example, the first network device group specific message.
- the form is sent to the first network device group, for example, in the form of DCI format3, 3A in LTE, and the subframe structure information in the signaling packet is for a first network device group; wherein, the first network device
- the group includes the Q first network devices, where the Q is greater than or equal to 2; the transmission form of the subframe structure information may be determined according to actual needs, and the present invention does not limit this.
- the method for the first network device to acquire the subframe structure depends on the method for the device that communicates with the first network device to send the subframe structure. Specifically, the first network device may use any one of the following methods corresponding to the method for transmitting the subframe structure. The method obtains the subframe structure information of the first subframe:
- the first network device detects the information of the first N OFDM symbols of the first subframe to obtain the subframe structure information of the first subframe, where N is a positive integer greater than or equal to 1
- the information of the first N OFDM symbols of the first subframe is detected by using any one of the following four methods to obtain the subframe structure information of the first subframe:
- the first network device detects that the PCFICH transmitted in the first N OFDM symbols of the first subframe acquires subframe structure information of the first subframe.
- the PCFICH is used to indicate the number of symbols occupied by the PDCCH in the subframe, and is transmitted in the first OFDM symbol of the subframe, and the subframe structure information of the first subframe uses the first N subframes of the first subframe.
- the first network device may detect, by using any one of the following manners, the PCFICH transmitted in the first N OFDM symbols of the first subframe to obtain the subframe structure information of the first subframe:
- the size of the PCFICH is 2 bits, and four states can be indicated, where The first three states are still used to indicate the number of symbols occupied by the PDCCH in the subframe, and the fourth state of the vacancy may be used to indicate the subframe structure information of the first subframe, and the first network device detects the first subframe.
- the fourth state of the PCFICH transmitted in the first N OFDM symbols acquires subframe structure information of the first subframe.
- the second mode the first network device receives the high layer signaling sent by the second network device, where the high layer signaling includes the first indication information, where the first subframe is used to indicate that the first subframe is a fixed configuration subframe or a variable configuration subframe.
- the first network device determines that the first subframe is a variable configuration subframe according to the first indication information, the first network device detects the PCFICH transmitted in the first N OFDM symbols of the first subframe, and parses the PCFICH into the first subframe.
- the subframe structure information of the frame At this time, the number of symbols occupied by the PDCCH indicated by the PCFICH is fixed;
- the PCFICH transmitted in the first N OFDM symbols of the first subframe is parsed into the number of symbols occupied by the PDCCH.
- the four states of the PCIFCH indicate the number of symbols of the PDCCH, and corresponding to different subframe structures, that is, different subframe structures may be indicated by different states of the PCIFCH; the first network device detects the state of the PCIFCH according to the corresponding relationship.
- the subframe structure information of the first subframe may be obtained, where the four states of the PCIFCH and the number of symbols of the indicated PDCCH and the corresponding subframe structure may be in the form of a table, see Table 1; of course, the PCIFCH 4
- the state and the number of symbols of the indicated PDCCH and the corresponding subframe structure may also be in other forms.
- Table 1 only reflects the four states of a PCIFCH and the number of indicated PDCCH symbols and the corresponding subframe structure in the form of a table.
- the relationship between the four states of the PCIFCH and the number of the indicated PDCCH symbols and the corresponding subframe structure and the content of the corresponding relationship may be determined according to actual requirements, which is not limited by the present invention.
- the first network device detects a PCFICH-like channel transmitted in the first N OFDM symbols of the first subframe to obtain subframe structure information of the first subframe, where the PCFICH-like channel is similar to the PCIFCH structure but transmits the resource location. Different channels.
- the PCFICH information is encoded and modulated to obtain 16 QPSK symbols, which are transmitted in 4 REGs, each REG contains 4 REs, and the starting position of the PCFICH in the frequency domain is obtained according to the cell ID.
- the new channel used to indicate the subframe structure can also use multiple REG transmissions, and can be frequency-multiplexed with the PCFICH or transmitted on different OFDM symbols. New channels transmitted in different frequency domain locations and time domain locations can be used. Implicitly indicating different subframe structure information;
- a PCFICH-like channel is a channel that is redefined in the first subframe and has a similar PCIFCH structure but different transmission resource locations.
- a PCFICH-like channel may be in the second OFDM symbol of the first subframe or the first one.
- the OFDM symbol is transmitted in a different location from the PCFICH frequency domain; when the subframe structure information of the first subframe is carried by a channel similar to the PCFICH, the first network device detects the PCFICH-like channel of the first subframe to obtain the first subframe. Subframe structure information. It should be noted that the present invention does not specifically limit the transmission position of the defined PCFICH-like channel.
- the first network device detects a PHICH or a PHICH-like channel transmitted in the first N OFDM symbols of the first subframe to obtain subframe structure information of the first subframe, where the PHICH-like channel is similar to the PHICH structure. Channels with different resource locations;
- the first network device detects the PDCCH transmitted in the first N OFDM symbols of the first subframe to obtain the subframe structure information of the first subframe.
- the first network device may detect the first N OFDM symbols of the first subframe when the first network device detects the PDCCH transmitted in the first N OFDM symbols of the first subframe to obtain the subframe structure information of the first subframe.
- the information in the DCI in the PDCCH common search interval of the intra-transmission acquires the subframe structure information of the first subframe; or,
- the first network device detects the scrambling code information of the DCI in the PDCCH common search interval transmitted in the first N symbols of the first subframe or the scrambling code information of the CRC to obtain the subframe structure information of the first subframe.
- Method 2 The first network device detects information of a last OFDM symbol of a previous subframe of the first subframe to obtain subframe structure information of the first subframe.
- Method 3 The first network device detects a channel of a PSS of a first subframe or a channel of an SSS or a channel of a PSS-like channel or an SSS, and acquires subframe structure information of the first subframe by correlation detection, where PSS-like The channel is a channel similar to the PSS channel structure but different in transmission resource position, and the similar SSS channel is a channel similar to the SSS channel structure but different in transmission resource position.
- the subframe configuration information of the first subframe may be obtained by using the first channel and the second channel of the first subframe in FIG. 1B, for example, may be a CP length, where the first channel may be a sequence, The second channel transmits another sequence, and the CP length is obtained by correlation detection of the sequence of the first channel and correlation detection of the second channel; wherein, the first channel may be a channel of the PSS, a channel of the SSS, a channel similar to the PSS, and an SSS One of the channels, the second channel may be one of a PSS channel, an SSS channel, a PSS-like channel, and an SSS channel.
- the fourth network device detects the pilot information of the first subframe to obtain the subframe structure information of the first subframe.
- the pilot information may include one or more of the following pilots: CRS, CSI- RS, DMRS.
- the first network device may detect the scrambling code information or the spreading code of the pilot information of the first subframe when the first network device detects the pilot information of the first subframe to obtain the subframe structure information of the first subframe. Obtaining subframe structure information of the first subframe;
- the sequence of the CRS detecting the first OFDM symbol is correlated with the local sequence on the receiving side to obtain a second correlation peak at the position of T1, and two peaks.
- the time interval is the length of the OFDM symbol of the first subframe plus the length of the CP.
- the length of the OFDM symbol is fixed, the length of the CP can be calculated.
- the first network device detects the rank information of the first subframe to obtain the subframe structure information of the first subframe, where different rank information may correspond to different subframe structures; for example, the first network device may be according to the first The value of r ank of the subframe is used to determine the subframe structure; when the value of rank is less than the first preset threshold, the scattering path of the channel is relatively small, and the first subframe uses the first CP, when the value of r ank When the first preset threshold is greater than the first preset threshold, the first subframe may use the second CP, where the first CP ⁇ current CP ⁇ the second CP;
- the foregoing example is only used to illustrate the manner in which the first network device detects the rank information of the first subframe to obtain the subframe structure information of the first subframe, and the specific first preset threshold, the first CP, and the second CP.
- the value of the present invention can be determined according to actual needs, and the present invention does not specifically limit this.
- Method 6 The first network device detects the RSRP information of the first subframe to obtain the structure information of the first subframe, where different RSRP information ranges may correspond to different subframe structures.
- the first network device may determine the subframe structure according to the value of the RSRP of the first subframe.
- the probability that the channel is the LOS path is relatively large.
- the frame uses the third CP.
- the first subframe may use the fourth CP, where the third CP ⁇ current CP ⁇ fourth CP;
- the foregoing example is only used to illustrate the manner in which the first network device detects the RSRP information of the first subframe to obtain the subframe structure information of the first subframe, and the specific second preset threshold, the third CP, and the fourth CP.
- the value of the present invention can be determined according to actual needs, and the present invention does not specifically limit this.
- the subframe structure of the first subframe is obtained according to the indication of the subframe structure information of the first subframe, where the subframe structure information of the first subframe is a feature description of the subframe structure of the first subframe.
- the information included in the subframe structure information of the first subframe is a description of a feature of the subframe structure of the first subframe, and the content included in the subframe structure may be different, according to
- the indication of the information included in the subframe structure information of the first subframe acquired in step 101 may acquire the subframe structure of the first subframe.
- the subframe structure refers to the number of OFDM symbols included in the subframe, the length of the symbol of each OFDM, the length of the CP of each OFDM symbol, the length of the guard interval, the length of the DwPTS, the length of the UPPTS, and the like; Subframe type, different information that the subframe structure may contain; for example, for a normal subframe of a Long Term Evolution (LTE) system, the subframe structure may include the number of OFDM symbols included in the subframe, The length of the symbol of each OFDM, the length of the CP of each OFDM symbol; For the special subframe of the LTE system, the subframe structure may include the length of the guard interval, the length of the DwPTS, and the length of the UPPTS; The content of the frame structure may be specifically determined according to the type of the subframe, which is not limited by the present invention.
- LTE Long Term Evolution
- the present invention provides a method for acquiring a subframe structure, where the first subframe detects that the first subframe acquires subframe structure information of the first subframe, and obtains the first subframe according to the indication of the subframe structure information of the first subframe.
- Subframe structure The dynamic acquisition and configuration of the subframe structure are implemented, so that the subframe structure is more adapted to the current channel propagation characteristics, thereby improving the performance of the communication system, and solving the fixed subframe structure used in the prior art, the subframe structure and the current channel propagation.
- the characteristic is low in adaptability, which leads to a defect in the performance of the communication system.
- a second embodiment of the present invention provides a method for configuring a subframe structure.
- a structure of a subframe suitable for the transmission environment has been determined according to a transmission environment, and the present invention determines a subframe structure according to a transmission environment.
- the method does not require specific requirements. Referring to Figure 2, the method can include:
- the subframe structure information of the first subframe is sent to the first network device, so that the first network device acquires the subframe structure information of the first subframe, where the subframe structure information of the first subframe is A feature description of a subframe structure of the first subframe to be configured.
- the subframe structure information may include one or more of the following information: the number of OFDM symbols included in the subframe, the length of each OFDM symbol, and each The length of the CP of the OFDM symbol, the length of the guard interval, the length of the DwPTS, and the length of the UPPTS; the content of the information contained in the first subframe structure information depends on the type of the first subframe and the portion of the first subframe that needs to be adjusted.
- the present invention is not specifically limited thereto.
- the subframe structure information may be sent to the first network device in a signaling manner specific to the first network device; or may be sent to the first network device group in a multicast manner, for example, the first network device group specific message.
- the form is sent to the first network device group, for example, in the form of DCI format3, 3A in LTE, and the subframe structure information in the signaling packet is for a first network device group; wherein, the first network device
- the group includes the Q first network devices, where the Q is greater than or equal to 2; the transmission form of the subframe structure information may be determined according to actual needs, and the present invention does not limit this.
- the subframe structure information of the first subframe is sent to the first network device by using different information bearers.
- the first network device detects the first subframe to obtain the subframe structure, the corresponding Obtaining the subframe structure information of the first subframe and acquiring the subframe structure of the first subframe.
- the subframe structure information of the first subframe may be sent to the first network device by using any one of the following methods:
- Method 1 Send the subframe structure information of the first subframe to the first network device by using the information carrier of the first N OFDM symbols of the first subframe, where N is a positive integer greater than or equal to 1.
- the PCFICH is used to indicate the number of symbols occupied by the PDCCH in the subframe, and is sent in the first OFDM symbol of the subframe, when the subframe structure information of the first subframe is used in the first subframe of the first subframe.
- sending the subframe structure information of the first subframe to the first network device by using the PCFICH bearer transmitted in the first N OFDM symbols of the first subframe may include Under Description:
- the first mode the size of the PCFICH is 2 bits, and the four states may be indicated, where the first three states are still used to indicate the number of symbols occupied by the PDCCH in the subframe, and the fourth state that is spare may include the first subframe.
- Subframe structure information
- the second mode the high-level signaling is sent to the first network device, where the high-level signaling includes the first indication information, where the first subframe is used to indicate that the first subframe is a fixed configuration subframe or a variable configuration subframe.
- the subframe structure information of the first subframe is carried by the PCFICH transmitted in the first N OFDM symbols of the first subframe, where the PCFICH is The number of symbols occupied by the indicated PDCCH is fixed;
- the PCFICH transmitted in the first N OFDM symbols of the first subframe is still used to indicate the number of symbols occupied by the PDCCH.
- the four states of the PCIFCH indicate the number of symbols of the PDCCH, and corresponding to different subframe structures.
- the subframe structure information may be sent to the first network device by using different states of the PCIFCH;
- the state and the indicated number of symbols of the PDCCH and the corresponding subframe structure may be in the form of a table, see Table 1; of course, the four states of the PCIFCH and the number of symbols of the indicated PDCCH and the corresponding subframe structure may also ⁇ Use other forms.
- a PCFICH-like channel is a channel that is redefined in the first subframe and has a similar PCIFCH structure but different transmission resource locations.
- a PCFICH-like channel may be in the second OFDM symbol of the first subframe or the first one.
- the OFDM symbol is transmitted at a position different from the PCFICH frequency domain, and the subframe structure information of the first subframe is carried by a channel similar to the PCFICH. It should be noted that the present invention does not specifically limit the transmission position of the channel similar to the PCFICH. 3.
- a PHICH or a PHICH-like channel bearer transmitted in the first N OFDM symbols of the first subframe, where the PHICH-like channel is associated with the PHICH structure.
- the subframe structure information of the first subframe is sent to the first network device by using the PDCCH bearer transmitted in the first N OFDM symbols of the first subframe.
- the subframe structure information of the first subframe may be sent to the first network device by using the information bearer in the DCI in the PDCCH common search interval transmitted in the first N OFDM symbols of the first subframe; or
- the subframe structure information of one subframe is transmitted to the first network device by using the scrambling code information of the DCI in the PDCCH common search interval transmitted in the first N OFDM symbols of the first subframe or the scrambling code information of the CRC.
- Method 2 The subframe structure information of the first subframe is sent to the first network device by using the information bearer of the last symbol of the previous subframe of the first subframe.
- Method 3 The subframe structure information of the first subframe is sent to the first network device by using the channel of the PSS of the first subframe or the channel of the SSS or the channel of the PSS or the channel of the SSS, where the PS is similar to the PS
- the channel of S is a channel similar to the PSS channel structure but different in transmission resource position
- the similar SSS channel is a channel similar to the SSS channel structure but different in transmission resource position.
- Method 4 The subframe structure information of the first subframe is sent to the first network device by using the pilot information of the first subframe.
- the pilot information may include one or more of the following pilots: CRS , C SI-RS, DMRS.
- the subframe structure information of the first subframe may be sent to the first network device by using the pilot information of the first subframe, the scrambling code information of the I. or the spreading code information; or
- the subframe structure information of the subframe is transmitted to the first network device by using pilot information of at least two OFDM symbols of the first subframe.
- the method for transmitting a subframe structure by transmitting the subframe structure information of the first subframe to the first network device, so that the first network device acquires the subframe structure information of the first subframe, where
- the subframe structure information of the first subframe is a feature description of a subframe structure of the first subframe to be configured; implementing dynamic acquisition and configuration
- the subframe structure makes the subframe structure more suitable for the current channel propagation characteristics, thereby improving the performance of the communication system, and solving the fixed subframe structure used in the prior art, and the sub-frame structure has low adaptability to the current channel propagation characteristics. Thus, the performance of the communication system is degraded.
- the third embodiment of the present invention provides a first network device 30.
- the first network device 30 may include:
- the acquiring unit 301 is configured to detect, by using the first subframe, subframe structure information of the first subframe.
- the obtaining unit 301 is further configured to: acquire, according to the indication of the subframe structure information of the first subframe, a subframe structure of the first subframe, where the subframe structure information of the first subframe is the A characterization of the subframe structure of a sub-frame.
- the subframe structure information includes one or more of the following information: the number of OFDM symbols included in the subframe, the length of the symbol of each OFDM, the length of the CP of each OFDM symbol, and the guard time interval. Length, length of DwPTS, length of UPPTS.
- subframe structure information subframe structure information is sent to the first network device in a signaling manner specific to the first network device;
- the subframe structure information is sent to the first network device group in a multicast manner, where the first network device group includes Q first network devices, where the Q is greater than or equal to 2.
- the obtaining unit 301 may be specifically configured to:
- the obtaining unit 301 is specifically configured to:
- Detecting a PCFICH-like message transmitted in the first N OFDM symbols of the first subframe Obtaining subframe structure information of the first subframe, where the channel similar to the PCFICH is a channel similar to the PCIFCH structure but having different transmission resource locations;
- the first network device further includes
- the receiving unit 302 is configured to receive the high layer signaling that is sent by the second network device, where the high layer signaling includes the first indication information, where the first subframe is used to indicate that the first subframe is a fixed configuration subframe or a variable configuration subframe.
- the obtaining unit 301 can be specifically configured to:
- the first network device detects a PCFICH transmitted in the first N OFDM symbols of the first subframe, and parses the PCFICH into a The number of symbols occupied by the PDCCH;
- the first network device detects a PCFICH transmitted in the first N OFDM symbols of the first subframe, and parses the PCFICH into The subframe structure information of the first subframe, where the number of symbols occupied by the PDCCH indicated by the PCFICH is fixed.
- the obtaining unit 301 may be specifically configured to:
- the scrambling code information of the DCI in the PDCCH common search interval transmitted in the first N symbols of the first subframe or the scrambling code information of the CRC is obtained to obtain the subframe structure information of the first subframe.
- the acquiring unit 301 may be specifically configured to: The information of the last OFDM symbol of the previous subframe of the first subframe is detected to obtain the subframe structure information of the first subframe.
- the acquiring unit 301 may be specifically configured to:
- Detecting a channel of a PSS of a first subframe or a channel of a SSS or a channel of a PSS-like channel or an SSS acquiring subframe structure information of a first subframe by correlation detection, where the PSS-like channel is associated with the PSS channel
- Channels that are similar in structure but have different transmission resource locations, similar to SSS channels are channels that are similar in structure to the SSS channel but have different transmission resource locations.
- the acquiring unit 301 may be specifically configured to:
- pilot information of the first subframe to obtain subframe structure information of the first subframe; where, the pilot information may include one or more of the following pilots: CRS, CSI-RS, DMRS.
- the obtaining unit 301 is specifically configured to:
- the pilot information of the at least two OFDM symbols of the first subframe is detected to obtain the subframe structure information of the first subframe by correlation detection.
- the acquiring unit 301 may be specifically configured to:
- the RSRP information of the first subframe is detected to obtain the structure information of the first subframe, where the interval in which the different RSRP information is located may correspond to different subframe structures.
- the embodiment of the present invention provides a first network device 30, which acquires subframe structure information of a first subframe by using a first network device, and acquires a subframe structure of the first subframe according to the indication of subframe structure information of the first subframe. .
- the dynamic acquisition and configuration of the subframe structure are implemented, so that the subframe structure is more adapted to the current channel propagation characteristics, thereby improving the performance of the communication system, and solving the fixed subframe structure used in the prior art, the subframe structure and the current channel propagation. Suitable for characteristics
- the disadvantage is that the performance of the communication system is low.
- the fourth embodiment of the present invention provides a second network device 40.
- the second network device 40 may include:
- the sending unit 401 is configured to send the subframe structure information of the first subframe to the first network device, so that the first network device acquires the subframe structure information of the first subframe, where the subframe structure of the first subframe
- the information is a characterization of the subframe structure of the first subframe that needs to be configured.
- the subframe structure information may include one or more of the following information: the number of OFDM symbols included in the subframe, the length of the symbol of each OFDM, the length of the CP of each OFDM symbol, and the guard time.
- the subframe structure information is sent to the first network device in a signaling manner specific to the first network device;
- the subframe structure information is sent to the first network device group in a multicast manner, where the first network device group includes Q first network devices, where the Q is greater than or equal to 2.
- the sending unit 401 may be specifically configured to:
- the subframe structure information of the first subframe is sent to the first network device by using the information carrier of the first N OFDM symbols of the first subframe, where N is a positive integer greater than or equal to 1.
- the sending unit 401 is specifically configured to:
- the location of the resource is different;
- the subframe structure information of the first subframe is transmitted to the first network device by using the PDCCH bearer transmitted in the first N OFDM symbols of the first subframe.
- the sending unit 401 is further configured to:
- the sending unit 401 may be specifically configured to:
- the PCFICH is used to indicate a symbol occupied by the PDCCH
- the subframe structure information of the first subframe is sent to the first network device by using the PCFICH bearer transmitted in the first N OFDM symbols of the first subframe.
- the sending unit 401 is specifically configured to:
- the subframe structure information of the first subframe is transmitted to the first network device by using the scrambling code information of the DCI in the PDCCH common search interval transmitted in the first N OFDM symbols of the first subframe or the scrambling information of the CRC.
- the sending unit 401 may be specifically configured to:
- the subframe structure information of the first subframe is transmitted to the first network device by using the information bearer of the last symbol of the previous subframe of the first subframe.
- the sending unit 401 may be specifically configured to:
- Subframe structure information of the first subframe is used for the channel of the PSS of the first subframe or SS S A channel or a PSS-like channel or a channel bearer of the S SS is transmitted to the first network device, where the PS S-like channel is a channel similar to the PS S channel structure but different in transmission resource location, similar to the S SS channel A channel that is similar in structure to the SS S channel but has different transmission resource locations.
- the sending unit 401 may be specifically configured to:
- CRS CRS
- CSI-RS CRS
- DMRS DMRS
- the sending unit 401 is specifically configured to:
- the subframe structure information of the first subframe is transmitted to the first network device by using pilot information of at least two OFDM symbols of the first subframe.
- the embodiment of the present invention provides a second network device 40, by sending the subframe structure information of the first subframe to the first network device, so that the first network device acquires the subframe structure information of the first subframe.
- the subframe structure information of the first subframe is a feature description of the subframe structure of the first subframe to be configured.
- the dynamic acquisition and configuration of the subframe structure are implemented, so that the subframe structure is more adapted to the current channel propagation characteristics, thereby improving the performance of the communication system, and solving the fixed subframe structure used in the prior art, the subframe structure and the current channel propagation.
- the characteristic is low in adaptability, which leads to a defect in the performance of the communication system.
- the fifth embodiment of the present invention provides a first network device 30.
- the first network device 30 may include:
- At least one processor 501 a memory 502, at least one communication bus 503 for enabling connection and mutual communication between the devices, the receiver 504;
- the communication bus 503 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an extended industry standard architecture ( Extended). Industry Standard Architecture, referred to as EISA) bus.
- ISA Industry Standard Architecture
- PCI Peripheral Component
- Extended extended industry standard architecture
- EISA Industry Standard Architecture
- the bus 503 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 5, but it does not mean that there is only one bus or one type of bus.
- Memory 502 can include read only memory and random access memory and provides instructions and data to processor 501. A portion of memory 502 may also include non-volatile line random access memory (NVRAM).
- NVRAM non-volatile line random access memory
- the processor 501 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more configured to implement the embodiments of the present invention. integrated circuit.
- CPU central processing unit
- ASIC application specific integrated circuit
- the processor 501 may be configured to acquire the subframe structure information of the first subframe.
- the processor 501 may be further configured to acquire the subframe structure of the first subframe according to the indication of the subframe structure information of the first subframe, where
- the subframe structure information of the first subframe is a feature description of the subframe structure of the first subframe.
- the subframe structure information includes one or more of the following information: the number of OFDM symbols included in the subframe, the length of the symbol of each OFDM, the length of the CP of each OFDM symbol, and the guard time interval. Length, length of DwPTS, length of UPPTS.
- the subframe structure information is sent to the first network device in a signaling manner specific to the first network device;
- the subframe structure information is sent to the first network device group in a multicast manner, where the first network device group includes Q first network devices, where the Q is greater than or equal to 2.
- processor 501 can be specifically configured to:
- the processor 501 is specifically configured to:
- the receiver 504 is configured to receive the high layer signaling sent by the second network device, where the high layer signaling includes the first indication information, where the first subframe is used to indicate that the first subframe is a fixed configuration subframe or a variable configuration subframe.
- the processor 501 can be specifically used,
- the first network device detects the PCFICH transmitted in the first N OFDM symbols of the first subframe, and parses the PCFICH into the PDCCH occupation. Number of symbols;
- the first network device detects the PCFICH transmitted in the first N OFDM symbols of the first subframe, and parses the PCFICH into the first subframe.
- the subframe structure information of one subframe, and the number of symbols occupied by the PDCCH indicated by the PCFICH is fixed.
- the processor 501 can be specifically used,
- processor 501 may be specifically configured to:
- the information of the last OFDM symbol of the previous subframe of the first subframe is detected to obtain the subframe structure information of the first subframe.
- processor 501 may be specifically configured to:
- Detecting a channel of a PSS of a first subframe or a channel of a SSS or a channel of a PSS-like channel or an SSS acquiring subframe structure information of a first subframe by correlation detection, where the PSS-like channel is associated with the PSS channel
- Channels that are similar in structure but have different transmission resource locations, similar to SSS channels are channels that are similar in structure to the SSS channel but have different transmission resource locations.
- processor 501 may be specifically configured to:
- pilot information of the first subframe to obtain subframe structure information of the first subframe; where, the pilot information may include one or more of the following pilots: CRS, CSI-RS, DMRS.
- the processor 501 is specifically configured to:
- the pilot information of the at least two OFDM symbols of the first subframe is detected to obtain the subframe structure information of the first subframe by correlation detection.
- processor 501 may be specifically configured to:
- the RSRP information of the first subframe is detected to obtain the structure information of the first subframe, where the interval in which the different RSRP information is located may correspond to different subframe structures.
- the embodiment of the present invention provides a first network device 30, which acquires subframe structure information of a first subframe by using a first network device, and acquires a subframe structure of the first subframe according to the indication of subframe structure information of the first subframe. .
- a first network device 30 which acquires subframe structure information of a first subframe by using a first network device, and acquires a subframe structure of the first subframe according to the indication of subframe structure information of the first subframe.
- Implement dynamic acquisition configure sub-frame structure, and make sub-frames
- the structure is more suitable for the current channel propagation characteristics, thereby improving the performance of the communication system, and solves the problem that the fixed subframe structure is used in the prior art, and the sub-frame structure has low adaptability to the current channel propagation characteristics, thereby degrading the performance of the communication system. defect.
- the fourth embodiment of the present invention provides a second network device 40.
- the second network device 40 may include:
- the communication bus 603 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an Extended Industry Standard Architecture (EISA). ) Bus, etc.
- ISA Industry Standard Architecture
- PCI Peripheral Component
- EISA Extended Industry Standard Architecture
- the bus 603 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 6, but it does not mean that there is only one bus or one type of bus.
- Memory 602 can include read only memory and random access memory and provides instructions and data to processor 601. A portion of memory 602 may also include non-volatile line random access memory (NVRAM).
- NVRAM non-volatile line random access memory
- the processor 601 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more configured to implement the embodiments of the present invention. integrated circuit.
- CPU central processing unit
- ASIC application specific integrated circuit
- the transmitter 604 may be configured to send the subframe structure information of the first subframe to the first network device, so that the first network device acquires subframe structure information of the first subframe, where the child of the first subframe
- the frame structure information is a feature description of the subframe structure of the first subframe to be configured.
- the subframe structure information may include one or more of the following information: the number of OFDM symbols included in the subframe, the length of the symbol of each OFDM, the length of the CP of each OFDM symbol, and the guard time. The length of the interval, the length of the DwPTS, and the length of the UPPTS. Further, the subframe structure information is sent to the first network device in a signaling manner specific to the first network device;
- the subframe structure information is sent to the first network device group in a multicast manner, where the first network device group includes Q first network devices, where the Q is greater than or equal to 2.
- processor 601 may be specifically configured to:
- the subframe structure information of the first subframe is carried by the information of the first N OFDM symbols of the first subframe, where N is a positive integer greater than or equal to 1.
- the processor 601 is specifically configured to:
- Submesh structure information of the first subframe is carried by a PCFICH transmitted in the first N OFDM symbols of the first subframe;
- the subframe structure information of the first subframe is carried by a PCFICH-like channel transmitted in the first N OFDM symbols of the first subframe, where the channel similar to the PCFICH is a channel similar to the PCIFCH structure but having different transmission resource positions;
- the subframe structure information of the first subframe is carried by a PHICH or a PHICH-like channel transmitted in the first N OFDM symbols of the first subframe, where the PHICH-like channel is a channel with a different resource location than the PHICH structure. ;
- the subframe structure information of the first subframe is carried by the PDCCH transmitted in the first N OFDM symbols of the first subframe.
- the transmitter 604 can also be used.
- the processor 601 Sending the high layer signaling to the first network device, where the high layer signaling includes the first indication information, where the first subframe is used to indicate that the first subframe is a fixed configuration subframe or a variable configuration subframe; correspondingly, the processor 601 Specifically used,
- the PCFICH is used to indicate a symbol occupied by the PDCCH; If the first subframe is a variable configuration subframe, the subframe structure information of the first subframe is carried by the PCFICH transmitted in the first N OFDM symbols of the first subframe.
- the processor 601 is specifically configured to:
- the subframe structure information of the first subframe is carried by the information in the DCI in the PDCCH common search interval transmitted in the first N OFDM symbols of the first subframe;
- the subframe structure information of the first subframe is carried by the scrambling code information of the DCI in the PDCCH common search interval transmitted in the first N OFDM symbols of the first subframe or the scrambling information of the CRC.
- processor 601 may be specifically configured to:
- the subframe structure information of the first subframe is carried by the information of the last symbol of the previous subframe of the first subframe.
- processor 601 may be specifically configured to:
- the subframe structure information of the first subframe is carried by the channel of the PSS of the first subframe or the channel of the SSS or the channel of the PSS or the channel of the SSS, wherein the channel similar to the PSS is similar to the PSS channel structure but the transmission resource location
- Different channels like SSS channels, are channels that are similar in structure to the SSS channel but have different transmission resource locations.
- processor 601 may be specifically configured to:
- the subframe structure information of the first subframe is carried by the pilot information of the first subframe; wherein, the pilot information includes one or more of the following pilots: CRS, CSI-RS, DMRSbeat optional
- the processor 601 may be specifically configured to:
- the subframe structure information of the first subframe is carried by the pilot signal of the first subframe, the scrambling code, or the spreading code information;
- the subframe structure information of the first subframe is carried with pilot information of at least two OFDM symbols of the first subframe.
- the embodiment of the present invention provides a second network device 40, by sending the subframe structure information of the first subframe to the first network device, so that the first network device acquires the subframe structure information of the first subframe.
- the subframe structure information of the first subframe is required to be configured.
- the dynamic acquisition and configuration of the subframe structure are implemented, so that the subframe structure is more adapted to the current channel propagation characteristics, thereby improving the performance of the communication system, and solving the fixed subframe structure used in the prior art, the subframe structure and the current channel propagation.
- the characteristic is low in adaptability, which leads to a defect in the performance of the communication system.
- the disclosed system, apparatus, and method may be implemented in other manners.
- the device embodiments described above are merely illustrative.
- the division of the unit is only a logical function division.
- there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
- the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical or otherwise.
- the units described as separate components may or may not be physically separated, and the components displayed as the units may or may not be physical units, and may be located in one place or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiment of the present embodiment.
- each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit.
- the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
- the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
- the software functional units described above are stored in a storage medium and include instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform portions of the steps of the methods described in various embodiments of the present invention.
- the foregoing storage medium includes: a U disk, a mobile hard disk, a read only memory (Read-Only Memory, ROM for short), Random Access Memory (RAM), disk or optical disk, and other media that can store program code.
Abstract
A method and network device for obtaining and configuring sub-frame structure are disclosed in the embodiments of the present invention. The embodiments of the present invention relate to the field of communications, realize that the sub-frame structure is obtained and configured dynamically according to a user's communication environment, and make the sub-frame structure more adaptable to current channel communication characteristics so that the performance of a communication system is improved. The method provided in the embodiments of the present invention comprises: the sub-frame structure information of a first sub-frame is obtained by a first network device; the sub-frame structure of the first sub-frame is obtained according to the indication of the sub-frame structure information of the first sub-frame. The method is used for obtaining and configuring sub-frame structure among network devices in the communication system.
Description
一种获取、 配置子帧结构的方法及网络设备 技术领域 Method for acquiring and configuring sub-frame structure and network device
本发明涉及通信领域, 尤其涉及一种获取、 配置子帧结构的方 法及网络设备。 The present invention relates to the field of communications, and in particular, to a method for acquiring and configuring a subframe structure and a network device.
背景技术 Background technique
通信系统的子帧中包括用户通信中传输数据的正交频分复用 The subframe of the communication system includes orthogonal frequency division multiplexing for transmitting data in user communication.
( Orthogonal Frequency Division Multiplex , 简称 OFDM ) 符号及用 于防止子载波间和符号间的干扰的每个 OFDM符号前的循环前缀 ( cyclic prefix , 简称 CP ); 子帧结构则包括该子帧中包含的 OFDM符 号的数量及每个 OFDM符号前的 CP的长度。 通信系统中的子帧结构 与信道传播特性的适应程度决定了通信系统的性能; 子帧结构越与 信道传播特性相适应, 则通信系统的性能越高。 (Orthogonal Frequency Division Multiplex, OFDM for short) symbol and cyclic prefix (CP for short) before each OFDM symbol for preventing inter-subcarrier and inter-symbol interference; the subframe structure includes the subframe included The number of OFDM symbols and the length of the CP before each OFDM symbol. The degree of adaptation of the subframe structure and channel propagation characteristics in the communication system determines the performance of the communication system; the more the subframe structure is adapted to the channel propagation characteristics, the higher the performance of the communication system.
例如, 子帧结构中的 CP长度是与时延扩展相关的, 根据用户传 播环境的时延扩展, 对于时延扩展大的用户, 以一栋居民楼中的的 用户为例, 低楼层的用户, 由于遮挡物比较多, 反射折射比较多, 因此时延扩展比较大, 若要更好的防止子载波间干扰和符号间干扰, 调度该用户的子帧包含的 CP长度应该相应的变大; 对于时延扩展小 的用户, 例如高楼层的用户, 其遮挡物比较少, 其传播路径是直射 ( line of sight , 简称 LOS ) 径的概率比较高, 因此时延扩展比较小, 故调度该用户的子帧的 CP应该相应的变小, 避免会造成网络资源的 浪费, 通信速率低; 所以, 固定的子帧结构对于具有不同信道传播 特性的用户的适应度低, 进而造成通信系统性能低。 For example, the length of the CP in the subframe structure is related to the delay spread. According to the delay spread of the user propagation environment, for the user with large delay spread, the user in a residential building is taken as an example, the user on the lower floor. Since there are many obstructions and more reflections and refractions, the delay spread is relatively large. To better prevent inter-subcarrier interference and intersymbol interference, the length of the CP included in the subframe in which the user is scheduled should be correspondingly larger; For users with small delay spread, such as users on high floors, the occlusion is relatively small, and the probability of the line of sight (LOS) is relatively high, so the delay spread is relatively small, so the user is scheduled. The CP of the subframe should be correspondingly smaller, avoiding waste of network resources and low communication rate; therefore, the fixed subframe structure has low adaptability to users with different channel propagation characteristics, thereby causing low performance of the communication system.
现行移动网络的子帧结构是配置固定的子帧结构, 使用过程中, 网络设备间则釆用配置好的子帧结构进行通信。 The subframe structure of the current mobile network is a fixed subframe structure. During use, the network device communicates with the configured subframe structure.
发明人发现现有技术至少存在以下缺陷: 使用固定的子帧结构, 子帧结构与当前的信道传播特性适应度低, 从而使得通信系统性能 降低。 The inventors have found that the prior art has at least the following drawbacks: With a fixed subframe structure, the sub-frame structure has low adaptability to current channel propagation characteristics, thereby degrading communication system performance.
发明内容
本发明提供一种获取、 配置子帧结构的方法及设备, 实现动态获 取、 配置子帧结构, 使得子帧结构更适应于当前的信道传播特性, 从而使 通信系统性能提升。 Summary of the invention The present invention provides a method and a device for acquiring and configuring a subframe structure, which implements dynamic acquisition and configuration of a subframe structure, so that the subframe structure is more adapted to current channel propagation characteristics, thereby improving communication system performance.
为达到上述目的, 本发明的实施例釆用如下技术方案: In order to achieve the above object, embodiments of the present invention use the following technical solutions:
第一方面, 提供一种获取子帧结构的方法, 包括, In a first aspect, a method for obtaining a subframe structure is provided, including
第一网络设备获取第一子帧的子帧结构信息; The first network device acquires subframe structure information of the first subframe;
根据所述第一子帧的子帧结构信息的指示获取所述第一子帧的 子帧结构; 其中, 所述第一子帧的子帧结构信息是所述第一子帧的 子帧结构的特征描述。 Obtaining a subframe structure of the first subframe according to the indication of the subframe structure information of the first subframe, where the subframe structure information of the first subframe is a subframe structure of the first subframe Feature description.
结合第一方面, 在第一方面的第一种可能的实现方式中, 所述 子帧结构信息包括下述信息中的一种或多种: 子帧包含的 OFDM符 号的个数、 每一个所述 OFDM的符号的长度、 每一个所述 OFDM符 号的循环前缀 CP 的长度、 保护时间间隔的长度、 下行导频时隙 With reference to the first aspect, in a first possible implementation manner of the first aspect, the subframe structure information includes one or more of the following information: a number of OFDM symbols included in the subframe, each of the The length of the symbol of OFDM, the length of the cyclic prefix CP of each of the OFDM symbols, the length of the guard interval, and the downlink pilot slot
( Downlink Pilot Time Slot , 简称 DwPTS ) 的长度、 上行导频时隙(Lenglink Pilot Time Slot, referred to as DwPTS) length, uplink pilot time slot
( Uplink Pilot Time Slot , 简称 UPPTS ) 的长度。 (Uplink Pilot Time Slot, referred to as UPPTS).
结合第一方面或第一方面的第一种可能的实现方式, 在第一方 面的第二种可能的实现方式中, In conjunction with the first aspect or the first possible implementation of the first aspect, in a second possible implementation of the first aspect,
所述子帧结构信息以第一网络设备特定的信令形式发送给所述 第一网络设备; The subframe structure information is sent to the first network device in a signaling form specific to the first network device;
或者, Or,
所述子帧结构信息以组播形式发送给第一网络设备组, 其中, 所述第一网络设备组包含 Q个所述第一网络设备, 其中, 所述 Q大 于等于 2。 The subframe structure information is sent to the first network device group in a multicast manner, where the first network device group includes Q first network devices, where the Q is greater than or equal to 2.
结合第一方面, 在第一方面的第三种可能的实现方式中, 所述 第一网络设备获取所述第一子帧的子帧结构信息, 包括, With reference to the first aspect, in a third possible implementation manner of the first aspect, the first network device acquires the subframe structure information of the first subframe, including,
所述第一网络设备检测所述第一子帧的前 N个 OFDM符号的信 息获取所述第一子帧的子帧结构信息, 其中, 所述 N 为大于等于 1 的正整数。 The first network device detects information of the first N OFDM symbols of the first subframe to obtain subframe structure information of the first subframe, where the N is a positive integer greater than or equal to 1.
结合第一方面的第三种可能的实现方式, 在第一方面的第四种
可能的实现方式中, 所述第一网络设备检测所述第一子帧的前 N个 OFDM符号的信息获取所述第一子帧的子帧结构信息, 包括, In combination with the third possible implementation of the first aspect, the fourth aspect in the first aspect In a possible implementation manner, the first network device detects information about the first N OFDM symbols of the first subframe, and obtains subframe structure information of the first subframe, where
所述第一网络设备检测所述第一子帧的前 N个 OFDM符号内传 输的物理控制格式指示信道 ( Physical Control Format Indicator Channel , 简称 PCFICH ) 获取所述第一子帧的子帧结构信息; The first network device detects a physical control format indicator channel (PCFICH) transmitted in the first N OFDM symbols of the first subframe to obtain subframe structure information of the first subframe;
或者, Or,
所述第一网络设备检测所述第一子帧的前 N个 OFDM符号内传 输的类似 PCFICH的信道获取所述第一子帧的子帧结构信息, 其中, 所述类似 PCFICH 的信道是与 PCIFCH 结构相似但传输资源位置不 同的信道; The first network device detects a PCFICH-like channel transmitted in the first N OFDM symbols of the first subframe to obtain subframe structure information of the first subframe, where the PCFICH-like channel is associated with the PCIFCH Channels with similar structures but different transmission resource locations;
或者, Or,
所述第一网络设备检测所述第一子帧的前 N个 OFDM符号内传 输的物理混合自动重传指示信道 ( Physical Hybrid ARQ Indicator Channel,简称 PHICH ) 或类似 PHICH的信道获取所述第一子帧的子 帧结构信息, 其中, 所述类似 PHICH 的信道是与 PHICH 结构相似 传输的资源位置不同的信道; The first network device detects a Physical Hybrid ARQ Indicator Channel (PHICH) or a PHICH-like channel transmitted in the first N OFDM symbols of the first subframe to acquire the first sub-sub Sub-frame structure information of the frame, where the PHICH-like channel is a channel with a different resource location than the PHICH structure;
或者, Or,
所述第一网络设备检测所述第一子帧的前 N个 OFDM符号内传 输的物理下行控制信道 ( hysical downlink control channel , 简称 PDCCH ) 获取所述第一子帧的子帧结构信息。 The first network device detects a physical downlink control channel (PDCCH) transmitted in the first N OFDM symbols of the first subframe to obtain subframe structure information of the first subframe.
结合第一方面的第四种可能的实现方式, 在第一方面的第五种 可能的实现方式中, 所述方法还包括, In conjunction with the fourth possible implementation of the first aspect, in a fifth possible implementation manner of the first aspect, the method further includes
接收第二网络设备发送的高层信令, 其中, 所述高层信令包含 第一指示信息, 用于指示所述第一子帧为固定配置子帧或可变配置 子帧; Receiving the high layer signaling sent by the second network device, where the high layer signaling includes first indication information, where the first subframe is used to indicate that the first subframe is a fixed configuration subframe or a variable configuration subframe;
相应的, 所述第一网络设备检测所述第一子帧的前 Ν个 OFDM 符号内传输的 PCFICH获取所述第一子帧的子帧结构信息, 包括, 若根据所述第一指示信息判断所述第一子帧为固定配置子帧, 所述第一网络设备检测所述第一子帧的前 N个 OFDM符号内传输的
PCFICH, 将所述 PCFICH解析为所述 PDCCH 占用的符号数; 若根据所述第一指示信息判断所述第一子帧为可变配置子帧, 所述第一网络设备检测所述第一子帧的前 N个 OFDM符号内传输的Correspondingly, the first network device detects that the PCFICH transmitted in the first OFDM symbol of the first subframe acquires the subframe structure information of the first subframe, and includes: determining, according to the first indication information, The first subframe is a fixed configuration subframe, and the first network device detects the transmission in the first N OFDM symbols of the first subframe. The PCFICH is configured to parse the PCFICH into the number of symbols occupied by the PDCCH; if the first subframe is determined to be a variable configuration subframe according to the first indication information, the first network device detects the first subframe Transmitted within the first N OFDM symbols of the frame
PCFICH, 将所述 PCFICH解析为所述第一子帧的子帧结构信息, 所 述 PCFICH指示的所述 PDCCH 占用的符号数固定。 The PCFICH parses the PCFICH into subframe structure information of the first subframe, and the number of symbols occupied by the PDCCH indicated by the PCFICH is fixed.
结合第一方面的第四种可能的实现方式, 在第一方面的第六种 可能的实现方式中, 所述第一网络设备检测所述第一子帧的前 N个 With the fourth possible implementation of the first aspect, in a sixth possible implementation manner of the first aspect, the first network device detects the first N of the first subframe
OFDM 符号内传输的 PDCCH 获取所述第一子帧的子帧结构信息包 括, The PDCCH transmitted in the OFDM symbol acquires the subframe structure information of the first subframe,
所述第一网络设备检测所述第一子帧的前 N个 OFDM符号内传 输的 PDCCH 公共搜索区间内的下行控制信息 ( downlink control Information, 简称 DCI) 内的信息获取所述第一子帧的子帧结构信 息; The first network device detects information in downlink control information (DCI) in a PDCCH common search interval transmitted in the first N OFDM symbols of the first subframe to obtain the first subframe. Subframe structure information;
或者, Or,
所述第一网络设备检测所述第一子帧的前 N 个符号内传输的 PDCCH公共搜索区间内的所述 DCI的扰码信息或者其循环冗余码校 验 ( Cyclic Redundancy Check, 简称 CRC ) 的扰码获取所述第一子 帧的子帧结构信息。 The first network device detects the scrambling code information of the DCI in the PDCCH common search interval transmitted in the first N symbols of the first subframe or its Cyclic Redundancy Check (CRC) The scrambling code acquires subframe structure information of the first subframe.
结合第一方面, 在第一方面的第七种可能的实现方式中, 所述 第一网络设备获取所述第一子帧的子帧结构信息包括, With reference to the first aspect, in a seventh possible implementation manner of the first aspect, the acquiring, by the first network device, the subframe structure information of the first subframe includes:
所述第一网络设备检测所述第一子帧的前一个子帧的最后一个 0 F D M符号的信息获取所述第一子帧的子帧结构信息。 The first network device detects information of a last 0 F D M symbol of a previous subframe of the first subframe to obtain subframe structure information of the first subframe.
结合第一方面, 在第一方面的第八种可能的实现方式中, 所述 第一网络设备获取所述第一子帧的子帧结构信息包括, With reference to the first aspect, in an eighth possible implementation manner of the first aspect, the acquiring, by the first network device, the subframe structure information of the first subframe includes:
所述第一网络设备检测所述第一子帧的主同步信号 (Primary Synchronization Signal,简称 PSS)的信道或辅同步信号 ( secondary synchronization signal, 简称 SSS ) 的信道或类似 PSS 的信道或 SSS 的信道通过相关检测获取所述第一子帧的子帧结构信息, 其中, 所 述类似 PSS的信道是与所述 PSS信道结构相似但传输资源位置不同
的信道, 所述类似 S S S信道是与所述 S S S信道结构相似但传输资源 位置不同的信道。 The first network device detects a channel of a Primary Synchronization Signal (PSS) of the first subframe or a channel of a secondary synchronization signal (SSS) or a channel of a PSS-like channel or SSS Acquiring the subframe structure information of the first subframe by using correlation detection, where the PSS-like channel is similar to the PSS channel structure but different in transmission resource location Channel, the similar SSS channel is a channel similar to the SSS channel structure but with different transmission resource locations.
结合第一方面, 在第一方面的第九种可能的实现方式中, 所述 第一网络设备获取所述第一子帧的子帧结构信息包括, With reference to the first aspect, in a ninth possible implementation manner of the first aspect, the acquiring, by the first network device, the subframe structure information of the first subframe includes:
所述第一网络设备检测所述第一子帧的导频信息获取所述第一 子帧的子帧结构信息; 其中, 所述导频信息包括下述导频中的一种 或多种: 小区专有导频 ( Cell-specific RS , 简称 CRS ) , 信道状态 信息测量导频 ( Channel State Information Reference Signal , 简称 CSI-RS ) , 解调参考信号 ( Demodulation Reference Signal , 简称 DMRS )。 The first network device detects the pilot information of the first subframe to obtain the subframe structure information of the first subframe, where the pilot information includes one or more of the following pilots: Cell-specific RS (CRS), Channel State Information Reference Signal (CSI-RS), Demodulation Reference Signal (DMRS).
结合第一方面的第九种可能的实现方式, 在第一方面的第十种 可能的实现方式中, 所述第一网络设备检测所述第一子帧的导频信 息获取所述第一子帧的子帧结构信息, 包括, With reference to the ninth possible implementation manner of the first aspect, in a tenth possible implementation manner of the first aspect, the first network device detects pilot information of the first subframe, and acquires the first sub Subframe structure information of the frame, including,
所述第一网络设备检测所述第一子帧的所述导频信, I.的扰码信 息或扩频码信息获取第一子帧的子帧结构信息; The first network device detects the pilot information of the first subframe, the scrambling code information of the I. or the spreading code information, and acquires subframe structure information of the first subframe;
或者, Or,
所述第一网络设备检测所述第一子帧的至少两个 OFDM符号的 导频信息通过相关检测获取所述第一子帧的子帧结构信息。 The first network device detects pilot information of at least two OFDM symbols of the first subframe, and acquires subframe structure information of the first subframe by correlation detection.
结合第一方面, 在第一方面的第十一种可能的实现方式中, 所 述第一网络设备获取所述第一子帧的子帧结构信息, 包括, With reference to the first aspect, in an eleventh possible implementation manner of the first aspect, the first network device acquires subframe structure information of the first subframe, including,
所述第一网络设备检测所述第一子帧的 rank信息获取所述第 ― 子帧的子帧结构信息, 其中, 不同的所述 rank信息对应不同的子帧 结构; The first network device detects the rank information of the first subframe to obtain the subframe structure information of the first subframe, where different rank information corresponds to different subframe structures;
或者, Or,
所述第一网络设备检测所述第一子帧的参考信号接收功率 ( Reference Signal Receiving Power , 简称 RSRP ) 信息获取所述第 一子帧的结构信息, 其中, 不同的所述 RSRP 信息所在的区间对应 不同的子帧结构。 The first network device detects the reference signal receiving power (RSRP) information of the first subframe to obtain the structure information of the first subframe, where different intervals of the RSRP information are located Corresponds to different subframe structures.
第二方面, 提供一种配置子帧结构的方法, 包括:
将第一子帧的子帧结构信息发送给第一网络设备, 以使得所述 第一网络设备获取所述第一子帧的子帧结构信息; 其中, 所述第一 子帧的子帧结构信息是需要配置的所述第一子帧的子帧结构的特征 描述。 In a second aspect, a method for configuring a subframe structure is provided, including: Transmitting the subframe structure information of the first subframe to the first network device, so that the first network device acquires subframe structure information of the first subframe, where the subframe structure of the first subframe The information is a feature description of the subframe structure of the first subframe that needs to be configured.
结合第二方面, 在第二方面的第一种可能的实现方式中, 所述 子帧结构信息包括下述信息中的一种或多种: 子帧包含的 OFDM符 号的个数、 每一个所述 OFDM的符号的长度、 每一个所述 OFDM符 号的 CP的长度、 保护时间间隔的长度、 DwPTS的长度、 UPPTS 的 长度。 With reference to the second aspect, in a first possible implementation manner of the second aspect, the subframe structure information includes one or more of the following information: a number of OFDM symbols included in the subframe, each of the The length of the symbol of OFDM, the length of the CP of each of the OFDM symbols, the length of the guard time interval, the length of the DwPTS, and the length of the UPPTS.
结合第二方面或第二方面的第一种可能的实现方式, 在第二方 面的第二种可能的实现方式中, In conjunction with the second aspect or the first possible implementation of the second aspect, in a second possible implementation of the second aspect,
所述子帧结构信息以第一网络设备特定的信令形式发送给所述 第一网络设备; The subframe structure information is sent to the first network device in a signaling form specific to the first network device;
或者, Or,
所述子帧结构信息以组播形式发送给第一网络设备组, 其中, 所述第一网络设备组包含 Q个所述第一网络设备, 其中, 所述 Q大 于等于 2。 The subframe structure information is sent to the first network device group in a multicast manner, where the first network device group includes Q first network devices, where the Q is greater than or equal to 2.
结合第二方面, 在第二方面的第三种可能的实现方式中, 所述 将第一子帧的子帧结构信息发送给第一网络设备包括, With reference to the second aspect, in a third possible implementation manner of the second aspect, the sending, by the first subframe, the subframe structure information to the first network device,
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号的信息承载发送给第一网络设备, 其中, N为大于等于 1 的正整数。 Transmitting the subframe structure information of the first subframe to the first network device by using an information bearer of the first N OFDM symbols of the first subframe, where N is a positive integer greater than or equal to 1.
结合第二方面的第三种可能的实现方式, 在第二方面的第四种 可能的实现方式中, 所述将所述第一子帧的子帧结构信息用所述第 一子帧的前 N个 OFDM符号的信息承载发送给第一网络设备,包括, 将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号内传输的 PCFICH承载发送给所述第 ―网络设备; With the third possible implementation of the second aspect, in a fourth possible implementation manner of the second aspect, the subframe structure information of the first subframe is used before the first subframe Transmitting, to the first network device, an information bearer of the N OFDM symbols, where the subframe structure information of the first subframe is sent to the PCFICH bearer transmitted in the first N OFDM symbols of the first subframe The first - network equipment;
或者, Or,
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个
OFDM符号内传输的类似 PCFICH 的信道承载发送给所述第一网络 设备, 其中, 所述类似 PCFICH 的信道是与 PCIFCH 结构相似但传 输资源位置不同的信道; Subframe structure information of the first subframe is used by the first N of the first subframe The PCFICH-like channel bearer transmitted in the OFDM symbol is sent to the first network device, where the PCFICH-like channel is a channel similar to the PCIFCH structure but different in transmission resource location;
或者, Or,
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号内传输的 PHICH或类似 PHICH 的信道承载发送给所述 第一网络设备, 其中, 所述类似 PHICH 的信道是与 PHICH 结构相 似传输的资源位置不同的信道; Transmitting the subframe structure information of the first subframe to the first network device by using a PHICH or a PHICH-like channel bearer transmitted in the first N OFDM symbols of the first subframe, where the PHICH is similar to the PHICH The channel is a channel with a different resource location than the PHICH structure;
或者, Or,
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号内传输的 PDCCH承载发送给所述第一网络设备。 Transmitting the subframe structure information of the first subframe to the first network device by using a PDCCH bearer transmitted in the first N OFDM symbols of the first subframe.
结合第二方面的第四种可能的实现方式, 在第二方面的第五种 可能的实现方式中, 所述方法还包括, With the fourth possible implementation of the second aspect, in a fifth possible implementation of the second aspect, the method further includes
向第一网络设备发送高层信令, 其中, 所述高层信令包含第一 指示信息, 用于指示所述第一子帧为固定配置子帧或可变配置子帧; 相应的, 所述将所述第一子帧的子帧结构信息用所述第一子帧 的前 N个 OFDM符号内传输的物理控制格式指示信道 PCFICH发送 给所述第一网络设备, 包括, Transmitting the high layer signaling to the first network device, where the high layer signaling includes first indication information, where the first subframe is used to indicate that the first subframe is a fixed configuration subframe or a variable configuration subframe; The subframe structure information of the first subframe is sent to the first network device by using a physical control format indication channel PCFICH transmitted in the first N OFDM symbols of the first subframe, where
若所述第一子帧为固定配置子帧, 则所述 PCFICH 用来指示所 述 PDCCH所占的符号; If the first subframe is a fixed configuration subframe, the PCFICH is used to indicate a symbol occupied by the PDCCH;
若所述第一子帧为可变配置子帧, 将所述第一子帧的子帧结构 信息中用所述第一子帧的前 N个 OFDM符号内传输的 PCFICH承载 发送给所述第一网络设备,所述 PCFICH指示的所述 PDCCH 占用的 符号数固定。 Transmitting, by the PCFICH bearer transmitted in the first N OFDM symbols of the first subframe, to the first subframe, if the first subframe is a variable configuration subframe, a network device, the number of symbols occupied by the PDCCH indicated by the PCFICH is fixed.
结合第二方面的第四种可能的实现方式, 在第二方面的第六种 可能的实现方式中, 所述将所述第一子帧的子帧结构信息用所述第 一子帧的前 N个 OFDM符号内传输的所述 PDCCH承载发送给所述 第一网络设备包括, With the fourth possible implementation of the second aspect, in a sixth possible implementation manner of the second aspect, the subframe structure information of the first subframe is used before the first subframe Transmitting, by the PDCCH bearer transmitted in the N OFDM symbols, to the first network device,
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个
OFDM符号内传输的所述 PDCCH公共搜索区间内的 DCI 内的信息 承载发送给所述第一网络设备; Subframe structure information of the first subframe is used by the first N of the first subframe Transmitting an information bearer in the DCI in the PDCCH common search interval that is transmitted in the OFDM symbol to the first network device;
或者, Or,
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号内传输的 PDCCH公共搜索区间内的所述 DCI 的扰码信 息或者其 CRC的扰码信息承载发送给所述第一网络设备。 Transmitting the subframe structure information of the first subframe by using the scrambling code information of the DCI or the CRC of the CRC in the PDCCH common search interval transmitted in the first N OFDM symbols of the first subframe To the first network device.
结合第二方面, 在第二方面的第七种可能的实现方式中, 所述 将所述第一子帧的子帧结构信息发送给第一网络设备包括, With reference to the second aspect, in a seventh possible implementation of the second aspect, the sending, by the first subframe, the subframe structure information to the first network device includes:
将所述第一子帧的子帧结构信息用所述第一子帧的前一个子帧 的最后一个符号的信息承载发送给所述第一网络设备。 Transmitting the subframe structure information of the first subframe to the first network device by using an information bearer of a last symbol of a previous subframe of the first subframe.
结合第二方面, 在第二方面的第八种可能的实现方式中, 所述 将第一子帧的子帧结构信息发送给第一网络设备包括, With reference to the second aspect, in an eighth possible implementation manner of the second aspect, the sending, by the first subframe, the subframe structure information to the first network device,
将所述第一子帧的子帧结构信息用所述第一子帧的 PS S 的信道 或 S S S的信道或类似 P S S的信道或 S S S的信道发送承载给所述第 ― 网络设备, 其中, 所述类似 PS S的信道是与所述 PS S信道结构相似 但传输资源位置不同的信道, 所述类似 S S S信道是与所述 S S S信道 结构相似但传输资源位置不同的信道。 Transmitting the subframe structure information of the first subframe to the channel of the PSS of the first subframe or the channel of the SSS or the channel of the PSS or the channel of the SSS to the network device, where The PS S-like channel is a channel similar to the PS S channel structure but different in transmission resource location, and the similar SSS channel is a channel similar to the SSS channel structure but different in transmission resource location.
结合第二方面, 在第二方面的第九种可能的实现方式中, 所述 将第一子帧的子帧结构信息发送给第一网络设备包括, With reference to the second aspect, in a ninth possible implementation manner of the second aspect, the sending, by the first subframe, the subframe structure information to the first network device,
将所述第一子帧的子帧结构信息用所述第一子帧的导频信息承 载发送给所述第一网络设备; 其中, 所述导频信息包括下述导频中 的一种或多种: CRS , CSI-RS , DMRS。 Transmitting the subframe structure information of the first subframe to the first network device by using the pilot information of the first subframe; where the pilot information includes one of the following pilots or Multiple: CRS, CSI-RS, DMRS.
结合第二方面的第九种可能的实现方式, 在第二方面的第十种 可能的实现方式中, 所述将所述第一子帧的子帧结构信息用所述第 一子帧的导频信息承载发送给所述第一网络设备包括, With reference to the ninth possible implementation of the second aspect, in a tenth possible implementation manner of the second aspect, the sub-frame structure information of the first subframe is used by the first subframe Transmitting a frequency information bearer to the first network device,
将所述第一子帧的子帧结构信息用所述第一子帧的所述导频信 , ¾的扰码信息或扩频码信息承载发送给所述第一网络设备; Transmitting the subframe structure information of the first subframe to the first network device by using the pilot information of the first subframe, the scrambling code information or the spreading code information bearer;
或者, Or,
将所述第一子帧的子帧结构信息用所述第一子帧的至少两个
OFDM符号的导频信息承载发送给第一网络设备。 Subframe structure information of the first subframe is used by at least two of the first subframes The pilot information bearer of the OFDM symbol is transmitted to the first network device.
第三方面, 提供一种第一网络设备, 包括, a third aspect, providing a first network device, including,
获取单元, 用于获取所述第一子帧的子帧结构信息; An acquiring unit, configured to acquire subframe structure information of the first subframe;
所述获取单元还用于, 根据所述第一子帧的子帧结构信息的指 示获取所述第一子帧的子帧结构; 其中, 所述第一子帧的子帧结构 信息是所述第一子帧的子帧结构的特征描述。 The acquiring unit is further configured to: acquire, according to the indication of the subframe structure information of the first subframe, a subframe structure of the first subframe, where the subframe structure information of the first subframe is the A characterization of the subframe structure of the first subframe.
结合第三方面, 在第三方面的第一种可能的实现方式中, 所述 子帧结构信息包括下述信息中的一种或多种: 子帧包含的 OFDM符 号的个数、 每一个所述 OFDM的符号的长度、 每一个所述 OFDM符 号的 CP的长度、 保护时间间隔的长度、 DwPTS的长度、 UPPTS 的 长度。 With reference to the third aspect, in a first possible implementation manner of the third aspect, the subframe structure information includes one or more of the following information: a number of OFDM symbols included in the subframe, each The length of the symbol of OFDM, the length of the CP of each of the OFDM symbols, the length of the guard time interval, the length of the DwPTS, and the length of the UPPTS.
结合第三方面或第三方面的第一种可能的实现方式, 在第三方 面的第二种可能的实现方式中, In combination with the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third party,
所述子帧结构信息以第一网络设备特定的信令形式发送给所述 第一网络设备; The subframe structure information is sent to the first network device in a signaling form specific to the first network device;
或者, Or,
所述子帧结构信息以组播形式发送给第一网络设备组, 其中, 所述第一网络设备组包含 Q个第一网络设备, 其中, 所述 Q大于等 于 2。 The subframe structure information is sent to the first network device group in a multicast manner, where the first network device group includes Q first network devices, where the Q is greater than or equal to 2.
结合第三方面, 在第三方面的第三种可能的实现方式中, 所述 获取单元具体用于, With reference to the third aspect, in a third possible implementation manner of the third aspect, the acquiring unit is specifically configured to:
检测所述第一子帧的前 N个 OFDM符号的信息获取所述第一子 帧的子帧结构信息, 其中, 所述 N为大于等于 1 的正整数。 Detecting information of the first N OFDM symbols of the first subframe to obtain subframe structure information of the first subframe, where the N is a positive integer greater than or equal to 1.
结合第三方面的第三种可能的实现方式, 在第三方面的第四种 可能的实现方式中, 所述获取单元具体用于, With the third possible implementation of the third aspect, in a fourth possible implementation manner of the third aspect, the acquiring unit is specifically configured to:
检测所述第一子帧的前 N个 OFDM符号内传输的 PCFICH获取 所述第一子帧的子帧结构信息; Detecting, by the PCFICH transmitted in the first N OFDM symbols of the first subframe, subframe structure information of the first subframe;
或者, Or,
检测所述第一子帧的前 N个 OFDM符号内传输的类似 PCFICH
的信道获取所述第一子帧的子帧结构信息, 其中, 所述类似 PCFICH 的信道是与 PCIFCH结构相似但传输资源位置不同的信道; Detecting a similar PCFICH transmitted in the first N OFDM symbols of the first subframe Obtaining, by the channel, the subframe structure information of the first subframe, where the PCFICH-like channel is a channel similar to the PCIFCH structure but different in transmission resource locations;
或者, Or,
检测所述第一子帧的前 N个 OFDM符号内传输的 PHICH或类 似 PHICH的信道获取所述第一子帧的子帧结构信息, 其中, 所述类 似 PHICH的信道是与 PHICH结构相似传输的资源位置不同的信道; 或者, Detecting a PHICH or a PHICH-like channel transmitted in the first N OFDM symbols of the first subframe to obtain subframe structure information of the first subframe, where the PHICH-like channel is similar to the PHICH structure. a channel with a different resource location; or,
检测所述第一子帧的前 N个 OFDM符号内传输的 PDCCH获取 所述第一子帧的子帧结构信息。 Detecting a PDCCH transmitted in the first N OFDM symbols of the first subframe to acquire subframe structure information of the first subframe.
结合第三方面的第四种可能的实现方式, 在第三方面的第五种 可能的实现方式中, 所述第一网络设备还包括, With the fourth possible implementation of the third aspect, in a fifth possible implementation manner of the third aspect, the first network device further includes
接收单元, 用于接收第二网络设备发送的高层信令, 其中, 所 述高层信令包含第一指示信息, 用于指示所述第一子帧为固定配置 子帧或可变配置子帧; a receiving unit, configured to receive the high layer signaling sent by the second network device, where the high layer signaling includes first indication information, where the first subframe is used to indicate that the first subframe is a fixed configuration subframe or a variable configuration subframe.
相应的, 所述获取单元具体用于, Correspondingly, the acquiring unit is specifically configured to:
若根据所述第一指示信息判断所述第一子帧为固定配置子帧, 所述第一网络设备检测所述第一子帧的前 N个 OFDM符号内传输的 PCFICH , 将所述 PCFICH解析为所述 PDCCH 占用的符号数; If the first subframe is determined to be a fixed configuration subframe according to the first indication information, the first network device detects a PCFICH transmitted in the first N OFDM symbols of the first subframe, and parses the PCFICH. The number of symbols occupied by the PDCCH;
若根据所述第一指示信息判断所述第一子帧为可变配置子帧, 所述第一网络设备检测所述第一子帧的前 N个 OFDM符号内传输的 PCFICH , 将所述 PCFICH解析为所述第一子帧的子帧结构信息, 所 述 PCFICH指示的所述 PDCCH 占用的符号数固定。 If the first subframe is determined to be a variable configuration subframe according to the first indication information, the first network device detects a PCFICH transmitted in the first N OFDM symbols of the first subframe, and the PCFICH is used. The subframe structure information of the first subframe is parsed, and the number of symbols occupied by the PDCCH indicated by the PCFICH is fixed.
结合第三方面的第四种可能的实现方式, 在第三方面的第六种 可能的实现方式中, 所述获取单元具体用于, With the fourth possible implementation of the third aspect, in a sixth possible implementation manner of the third aspect, the acquiring unit is specifically configured to:
检测所述第一子帧的前 N个 OFDM符号内传输的 PDCCH公共 搜索区间内的 DCI内的信息获取所述第一子帧的子帧结构信息; 或者, Detecting information in the DCI in the PDCCH common search interval transmitted in the first N OFDM symbols of the first subframe to obtain subframe structure information of the first subframe; or
检测所述第一子帧的前 N个符号内传输的 PDCCH公共搜索区 间内的所述 DCI的扰码信息或者其 CRC的扰码信息获取所述第一子
帧的子帧结构信息。 Detecting the scrambling code information of the DCI or the scrambling code information of the CRC in the PDCCH common search interval transmitted in the first N symbols of the first subframe to obtain the first sub Subframe structure information of the frame.
结合第三方面, 在第三方面的第七种可能的实现方式中, 所述 获取单元具体用于, With reference to the third aspect, in a seventh possible implementation manner of the third aspect, the acquiring unit is specifically configured to:
检测所述第一子帧的前一个子帧的最后一个 OFDM符号的信息 获取所述第一子帧的子帧结构信息。 Detecting information of a last OFDM symbol of a previous subframe of the first subframe Obtaining subframe structure information of the first subframe.
结合第三方面, 在第三方面的第八种可能的实现方式中, 所述 获取单元具体用于, With reference to the third aspect, in an eighth possible implementation manner of the third aspect, the acquiring unit is specifically configured to:
检测所述第一子帧的 PSS的信道或 SSS的信道或类似 PSS的信 道或 SSS 的信道通过相关检测获取所述第一子帧的子帧结构信息, 其中, 所述类似 PSS的信道是与所述 PSS信道结构相似但传输资源 位置不同的信道, 所述类似 SSS信道是与所述 SSS信道结构相似但 传输资源位置不同的信道。 Detecting a channel of a PSS of the first subframe or a channel of a SSS or a channel of a PSS-like channel or an SSS, and acquiring subframe structure information of the first subframe by correlation detection, where the PSS-like channel is The PSS channel structure is similar but the transmission resource location is different, and the similar SSS channel is a channel similar to the SSS channel structure but different in transmission resource location.
结合第三方面, 在第三方面的第九种可能的实现方式中, 所述 获取单元具体用于, With reference to the third aspect, in a ninth possible implementation manner of the third aspect, the acquiring unit is specifically configured to:
检测所述第一子帧的导频信息获取所述第一子帧的子帧结构信 息; 其中, 所述导频信息包括下述导频中的一种或多种: CRS, CSI-RS, DMRS。 Detecting the pilot information of the first subframe to obtain the subframe structure information of the first subframe, where the pilot information includes one or more of the following pilots: CRS, CSI-RS, DMRS.
结合第三方面的第九种可能的实现方式, 在第三方面的第十种 可能的实现方式中, 所述获取单元具体用于, With reference to the ninth possible implementation of the third aspect, in a tenth possible implementation manner of the third aspect, the acquiring unit is specifically used to:
检测所述第一子帧的所述导频信 , 的扰码信息或扩频码信息获 取第一子帧的子帧结构信息; Detecting the scrambling code information or the spreading code information of the pilot information of the first subframe to obtain subframe structure information of the first subframe;
或者, Or,
检测所述第一子帧的至少两个 OFDM符号的导频信息通过相关 检测获取所述第一子帧的子帧结构信息。 Detecting pilot information of at least two OFDM symbols of the first subframe, and acquiring subframe structure information of the first subframe by correlation detection.
结合第三方面, 在第三方面的第十一种可能的实现方式中, 所 述获取单元具体用于, With reference to the third aspect, in an eleventh possible implementation manner of the third aspect, the acquiring unit is specifically configured to:
检测所述第一子帧的 rank信息获取所述第一子帧的子帧结构信 息, 其中, 不同的所述 rank信息对应不同的子帧结构; Detecting the rank information of the first subframe to obtain the subframe structure information of the first subframe, where different rank information corresponds to different subframe structures;
或者,
检测所述第一子帧的 R S R P信息获取所述第一子帧的结构信息, 其中, 不同的所述 RSRP信息所在的区间对应不同的子帧结构。 or, Detecting the RSRP information of the first subframe to obtain the structure information of the first subframe, where different intervals of the RSRP information correspond to different subframe structures.
第四方面, 提供一种第二网络设备, 包括: In a fourth aspect, a second network device is provided, including:
发送单元, 用于将第一子帧的子帧结构信息发送给第一网络设 备, 以使得所述第一网络设备获取所述第一子帧的子帧结构信息; 其中, 所述第一子帧的子帧结构信息是需要配置的所述第一子帧的 子帧结构的特征描述。 a sending unit, configured to send the subframe structure information of the first subframe to the first network device, so that the first network device acquires subframe structure information of the first subframe, where the first sub The subframe structure information of the frame is a feature description of the subframe structure of the first subframe to be configured.
结合第四方面, 在第四方面的第一种可能的实现方式中, 所述 子帧结构信息包括下述信息中的一种或多种: 子帧包含的 OFDM符 号的个数、 每一个所述 OFDM的符号的长度、 每一个所述 OFDM符 号的 CP的长度、 保护时间间隔的长度、 DwPTS的长度、 UPPTS 的 长度。 With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the subframe structure information includes one or more of the following information: a number of OFDM symbols included in the subframe, each of the The length of the symbol of OFDM, the length of the CP of each of the OFDM symbols, the length of the guard time interval, the length of the DwPTS, and the length of the UPPTS.
结合第四方面或第四方面的第一种可能的实现方式, 在第四方 面的第二种可能的实现方式中, With reference to the fourth aspect or the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect,
所述子帧结构信息以第一网络设备特定的信令形式发送给所述 第一网络设备; The subframe structure information is sent to the first network device in a signaling form specific to the first network device;
或者, Or,
所述子帧结构信息以组播形式发送给第一网络设备组, 其中, 所述第一网络设备组包含 Q个第一网络设备, 其中, 所述 Q大于等 于 2。 The subframe structure information is sent to the first network device group in a multicast manner, where the first network device group includes Q first network devices, where the Q is greater than or equal to 2.
结合第四方面, 在第四方面的第三种可能的实现方式中, 所述 发送单元具体用于, With reference to the fourth aspect, in a third possible implementation manner of the fourth aspect, the sending unit is specifically configured to:
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号的信息承载发送给第一网络设备, 其中, N为大于等于 1 的正整数。 Transmitting the subframe structure information of the first subframe to the first network device by using an information bearer of the first N OFDM symbols of the first subframe, where N is a positive integer greater than or equal to 1.
结合第四方面的第三种可能的实现方式, 在第四方面的第四种 可能的实现方式中, 所述发送单元具体用于, With the third possible implementation of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the sending unit is specifically configured to:
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号内传输的 PCFICH承载发送给所述第 ―网络设备;
或者, Transmitting the subframe structure information of the first subframe to the first network device by using a PCFICH bearer transmitted in the first N OFDM symbols of the first subframe; or,
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号内传输的类似 PCFICH 的信道承载发送给所述第一网络 设备, 其中, 所述类似 PCFICH 的信道是与 PCIFCH 结构相似但传 输资源位置不同的信道; Transmitting the subframe structure information of the first subframe to the first network device by using a PCFICH-like channel bearer transmitted in the first N OFDM symbols of the first subframe, where the PCFICH-like channel is Is a channel similar to the PCIFCH structure but with different transmission resource locations;
或者, Or,
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号内传输的 PHICH或类似 PHICH 的信道承载发送给所述 第一网络设备, 其中, 所述类似 PHICH 的信道是与 PHICH 结构相 似传输的资源位置不同的信道; Transmitting the subframe structure information of the first subframe to the first network device by using a PHICH or a PHICH-like channel bearer transmitted in the first N OFDM symbols of the first subframe, where the PHICH is similar to the PHICH The channel is a channel with a different resource location than the PHICH structure;
或者, Or,
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号内传输的 PDCCH承载发送给所述第一网络设备。 Transmitting the subframe structure information of the first subframe to the first network device by using a PDCCH bearer transmitted in the first N OFDM symbols of the first subframe.
结合第四方面的第四种可能的实现方式, 在第四方面的第五种 可能的实现方式中, 所述发送单元还用于, With the fourth possible implementation of the fourth aspect, in a fifth possible implementation manner of the fourth aspect, the sending unit is further configured to:
向第一网络设备发送高层信令, 其中, 所述高层信令包含第一 指示信息, 用于指示所述第一子帧为固定配置子帧或可变配置子帧; 相应的, 所述发送单元具体用于, Transmitting the high layer signaling to the first network device, where the high layer signaling includes first indication information, where the first subframe is used to indicate that the first subframe is a fixed configuration subframe or a variable configuration subframe; The unit is specifically used,
若所述第一子帧为固定配置子帧, 则所述 PCFICH 用来指示所 述 PDCCH所占的符号; If the first subframe is a fixed configuration subframe, the PCFICH is used to indicate a symbol occupied by the PDCCH;
若所述第一子帧为可变配置子帧, 将所述第一子帧的子帧结构 信息用所述第一子帧的前 N个 OFDM符号内传输的 PCFICH承载发 送给所述第一网络设备,所述 PCFICH指示的所述 PDCCH 占用的符 号数固定。 If the first subframe is a variable configuration subframe, transmitting, by using the PCFICH bearer transmitted in the first N OFDM symbols of the first subframe, to the first The number of symbols occupied by the PDCCH indicated by the PCFICH is fixed.
结合第四方面的第四种可能的实现方式, 在第四方面的第六种 可能的实现方式中, 所述发送单元具体用于, With the fourth possible implementation of the fourth aspect, in a sixth possible implementation manner of the fourth aspect, the sending unit is specifically configured to:
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号内传输的所述 PDCCH公共搜索区间内的 DCI 内的信息 承载发送给所述第一网络设备;
或者, Transmitting the subframe structure information of the first subframe to the first network device by using an information bearer in the DCI in the PDCCH common search interval that is transmitted in the first N OFDM symbols of the first subframe; or,
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号内传输的所述 PDCCH公共搜索区间内的所述 DCI 的扰 码信息或者其 CRC的扰码信息承载发送给所述第一网络设备。 Using the subframe structure information of the first subframe with the scrambling code information of the DCI or the CRC of the CRC in the PDCCH common search interval transmitted in the first N OFDM symbols of the first subframe The bearer is sent to the first network device.
结合第四方面, 在第四方面的第七种可能的实现方式中, 所述 发送单元具体用于, With reference to the fourth aspect, in a seventh possible implementation manner of the fourth aspect, the sending unit is specifically configured to:
将所述第一子帧的子帧结构信息用所述第一子帧的前一个子帧 的最后一个符号的信息承载发送给所述第一网络设备。 Transmitting the subframe structure information of the first subframe to the first network device by using an information bearer of a last symbol of a previous subframe of the first subframe.
结合第四方面, 在第四方面的第八种可能的实现方式中, 所述 发送单元具体用于, With reference to the fourth aspect, in an eighth possible implementation manner of the fourth aspect, the sending unit is specifically configured to:
将所述第一子帧的子帧结构信息用所述第一子帧的 PS S 的信道 或 S S S的信道或类似 P S S的信道或 S S S的信道承载发送给所述第 ― 网络设备, 其中, 所述类似 PS S的信道是与所述 PS S信道结构相似 但传输资源位置不同的信道, 所述类似 S S S信道是与所述 S S S信道 结构相似但传输资源位置不同的信道。 Transmitting the subframe structure information of the first subframe to the channel of the PSS of the first subframe or the channel of the SSS or the channel of the PSS or the channel of the SSS to the network device, where The PS S-like channel is a channel similar to the PS S channel structure but different in transmission resource location, and the similar SSS channel is a channel similar to the SSS channel structure but different in transmission resource location.
结合第四方面, 在第四方面的第九种可能的实现方式中, 所述 发送单元具体用于, With reference to the fourth aspect, in a ninth possible implementation manner of the fourth aspect, the sending unit is specifically configured to:
将所述第一子帧的子帧结构信息用所述第一子帧的导频信息承 载发送给所述第一网络设备; 其中, 所述导频信息包括下述导频中 的一种或多种: CRS , C SI-RS , DMRS。 Transmitting the subframe structure information of the first subframe to the first network device by using the pilot information of the first subframe; where the pilot information includes one of the following pilots or Multiple: CRS, C SI-RS, DMRS.
结合第四方面的第九种可能的实现方式, 在第四方面的第十种 可能的实现方式中, 所述发送单元具体用于, With reference to the ninth possible implementation manner of the fourth aspect, in a tenth possible implementation manner of the fourth aspect, the sending unit is specifically configured to:
将所述第一子帧的子帧结构信息用所述第一子帧的所述导频信 , ¾的扰码信息或扩频码信息承载发送给所述第一网络设备; Transmitting the subframe structure information of the first subframe to the first network device by using the pilot information of the first subframe, the scrambling code information or the spreading code information bearer;
或者, Or,
将所述第一子帧的子帧结构信息用所述第一子帧的至少两个 OFDM符号的导频信息承载发送给第一网络设备。 Transmitting the subframe structure information of the first subframe to the first network device by using pilot information of at least two OFDM symbols of the first subframe.
第五方面, 提供一种第一网络设备, 包括: In a fifth aspect, a first network device is provided, including:
处理器, 用于获取所述第一子帧的子帧结构信息;
所述处理器还用于, 根据所述第一子帧的子帧结构信息的指示 获取所述第一子帧的子帧结构; 其中, 所述第一子帧的子帧结构信 息是所述第一子帧的子帧结构的特征描述。 a processor, configured to acquire subframe structure information of the first subframe; The processor is further configured to acquire, according to the indication of the subframe structure information of the first subframe, a subframe structure of the first subframe, where the subframe structure information of the first subframe is the A characterization of the subframe structure of the first subframe.
结合第五方面, 在第五方面的第一种可能的实现方式中, 所述 子帧结构信息包括下述信息中的一种或多种: 子帧包含的 OFDM符 号的个数、 每一个所述 OFDM的符号的长度、 每一个所述 OFDM符 号的 CP的长度、 保护时间间隔的长度、 DwPTS的长度、 UPPTS 的 长度。 With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, the subframe structure information includes one or more of the following information: a number of OFDM symbols included in the subframe, each The length of the symbol of OFDM, the length of the CP of each of the OFDM symbols, the length of the guard time interval, the length of the DwPTS, and the length of the UPPTS.
结合第五方面或第五方面的第一种可能的实现方式, 在第五方 面的第二种可能的实现方式中, With reference to the fifth aspect or the first possible implementation manner of the fifth aspect, in a second possible implementation manner of the fifth aspect,
所述子帧结构信息以第一网络设备特定的信令形式发送给所述 第一网络设备; The subframe structure information is sent to the first network device in a signaling form specific to the first network device;
或者, Or,
所述子帧结构信息以组播形式发送给第一网络设备组, 其中, 所述第一网络设备组包含 Q个第一网络设备, 其中, 所述 Q大于等 于 2。 The subframe structure information is sent to the first network device group in a multicast manner, where the first network device group includes Q first network devices, where the Q is greater than or equal to 2.
结合第五方面, 在第五方面的第三种可能的实现方式中, 所述 处理器具体用于, With reference to the fifth aspect, in a third possible implementation manner of the fifth aspect, the processor is specifically configured to:
检测所述第一子帧的前 N个 OFDM符号的信息获取所述第一子 帧的子帧结构信息, 其中, 所述 N为大于等于 1 的正整数。 Detecting information of the first N OFDM symbols of the first subframe to obtain subframe structure information of the first subframe, where the N is a positive integer greater than or equal to 1.
结合第五方面的第三种可能的实现方式, 在第五方面的第四种 可能的实现方式中, 所述处理器具体用于, With reference to the third possible implementation manner of the fifth aspect, in a fourth possible implementation manner of the fifth aspect,
检测所述第一子帧的前 N个 OFDM符号内传输的 PCFICH获取 所述第一子帧的子帧结构信息; Detecting, by the PCFICH transmitted in the first N OFDM symbols of the first subframe, subframe structure information of the first subframe;
或者, Or,
检测所述第一子帧的前 N个 OFDM符号内传输的类似 PCFICH 的信道获取所述第一子帧的子帧结构信息, 其中, 所述类似 PCFICH 的信道是与 PCIFCH结构相似但传输资源位置不同的信道; Detecting a PCFICH-like channel transmitted in the first N OFDM symbols of the first subframe to obtain subframe structure information of the first subframe, where the PCFICH-like channel is similar to a PCIFCH structure but a transmission resource location Different channels;
或者,
检测所述第一子帧的前 N个 OFDM符号内传输的 PHICH或类 似 PHICH的信道获取所述第一子帧的子帧结构信息, 其中, 所述类 似 PHICH的信道是与 PHICH结构相似传输的资源位置不同的信道; 或者, or, Detecting a PHICH or a PHICH-like channel transmitted in the first N OFDM symbols of the first subframe to obtain subframe structure information of the first subframe, where the PHICH-like channel is similar to the PHICH structure. a channel with a different resource location; or,
检测所述第一子帧的前 N个 OFDM符号内传输的 PDCCH获取 所述第一子帧的子帧结构信息。 Detecting a PDCCH transmitted in the first N OFDM symbols of the first subframe to acquire subframe structure information of the first subframe.
结合第五方面的第四种可能的实现方式, 在第五方面的第五种 可能的实现方式中, 所述第一网络设备还包括, With the fourth possible implementation of the fifth aspect, in a fifth possible implementation manner of the fifth aspect, the first network device further includes
接收器, 用于接收第二网络设备发送的高层信令, 其中, 所述 高层信令包含第一指示信息, 用于指示所述第一子帧为固定配置子 帧或可变配置子帧; a receiver, configured to receive the high layer signaling sent by the second network device, where the high layer signaling includes first indication information, where the first subframe is a fixed configuration subframe or a variable configuration subframe;
相应的, 所述处理器具体用于, Correspondingly, the processor is specifically configured to:
若根据所述第一指示信息判断所述第一子帧为固定配置子帧, 所述第一网络设备检测所述第一子帧的前 N个 OFDM符号内传输的 PCFICH , 将所述 PCFICH解析为所述 PDCCH 占用的符号数; If the first subframe is determined to be a fixed configuration subframe according to the first indication information, the first network device detects a PCFICH transmitted in the first N OFDM symbols of the first subframe, and parses the PCFICH. The number of symbols occupied by the PDCCH;
若根据所述第一指示信息判断所述第一子帧为可变配置子帧, 所述第一网络设备检测所述第一子帧的前 N个 OFDM符号内传输的 PCFICH , 将所述 PCFICH解析为所述第一子帧的子帧结构信息, 所 述 PCFICH指示的所述 PDCCH 占用的符号数固定。 If the first subframe is determined to be a variable configuration subframe according to the first indication information, the first network device detects a PCFICH transmitted in the first N OFDM symbols of the first subframe, and the PCFICH is used. The subframe structure information of the first subframe is parsed, and the number of symbols occupied by the PDCCH indicated by the PCFICH is fixed.
结合第五方面的第四种可能的实现方式, 在第五方面的第六种 可能的实现方式中, 所述处理器具体用于, With reference to the fourth possible implementation manner of the fifth aspect, in a sixth possible implementation manner of the fifth aspect,
检测所述第一子帧的前 N个 OFDM符号内传输的 PDCCH公共 搜索区间内的 DCI 内的信息获取所述第一子帧的子帧结构信息; 或者, Detecting information in the DCI in the PDCCH common search interval transmitted in the first N OFDM symbols of the first subframe to obtain subframe structure information of the first subframe; or
检测所述第一子帧的前 N个符号内传输的 PDCCH公共搜索区 间内的所述 DCI的扰码信息或者其 CRC的扰码信息获取所述第一子 帧的子帧结构信息。 Detecting the scrambling code information of the DCI or the scrambling code information of the CRC in the PDCCH common search area transmitted in the first N symbols of the first subframe to obtain the subframe structure information of the first subframe.
结合第五方面, 在第五方面的第七种可能的实现方式中, 所述 处理器具体用于,
检测所述第一子帧的前一个子帧的最后一个 OFDM符号的信息 获取所述第一子帧的子帧结构信息。 With reference to the fifth aspect, in a seventh possible implementation manner of the fifth aspect, Detecting information of a last OFDM symbol of a previous subframe of the first subframe to obtain subframe structure information of the first subframe.
结合第五方面, 在第五方面的第八种可能的实现方式中, 所述 处理器具体用于, With reference to the fifth aspect, in an eighth possible implementation manner of the fifth aspect, the processor is specifically configured to:
检测所述第一子帧的 PSS的信道或 SSS的信道或类似 PSS的信 道或 SSS 的信道通过相关检测获取所述第一子帧的子帧结构信息, 其中, 所述类似 PSS的信道是与所述 PSS信道结构相似但传输资源 位置不同的信道, 所述类似 SSS信道是与所述 SSS信道结构相似但 传输资源位置不同的信道。 Detecting a channel of a PSS of the first subframe or a channel of a SSS or a channel of a PSS-like channel or an SSS, and acquiring subframe structure information of the first subframe by correlation detection, where the PSS-like channel is The PSS channel structure is similar but the transmission resource location is different, and the similar SSS channel is a channel similar to the SSS channel structure but different in transmission resource location.
结合第五方面, 在第五方面的第九种可能的实现方式中, 所述 处理器具体用于, With reference to the fifth aspect, in a ninth possible implementation manner of the fifth aspect,
检测所述第一子帧的导频信息获取所述第一子帧的子帧结构信 息; 其中, 所述导频信息包括下述导频中的一种或多种: CRS, CSI-RS, DMRS。 Detecting the pilot information of the first subframe to obtain the subframe structure information of the first subframe, where the pilot information includes one or more of the following pilots: CRS, CSI-RS, DMRS.
结合第五方面的第九种可能的实现方式, 在第五方面的第十种 可能的实现方式中, 所述处理器具体用于, With reference to the ninth possible implementation manner of the fifth aspect, in a tenth possible implementation manner of the fifth aspect,
检测所述第一子帧的所述导频信 , 的扰码信息或扩频码信息获 取第一子帧的子帧结构信息; Detecting the scrambling code information or the spreading code information of the pilot information of the first subframe to obtain subframe structure information of the first subframe;
或者, Or,
检测所述第一子帧的至少两个 OFDM符号的导频信息通过相关 检测获取所述第一子帧的子帧结构信息。 Detecting pilot information of at least two OFDM symbols of the first subframe, and acquiring subframe structure information of the first subframe by correlation detection.
结合第五方面, 在第五方面的第十一种可能的实现方式中, 所 述处理器具体用于, With reference to the fifth aspect, in an eleventh possible implementation manner of the fifth aspect, the processor is specifically configured to:
检测所述第一子帧的 rank信息获取所述第一子帧的子帧结构信 息, 其中, 不同的所述 rank信息对应不同的子帧结构; Detecting the rank information of the first subframe to obtain the subframe structure information of the first subframe, where different rank information corresponds to different subframe structures;
或者, Or,
检测所述第一子帧的 R S R P信息获取所述第一子帧的结构信息, 其中, 不同的所述 RSRP信息所在的区间对应不同的子帧结构。 Detecting the R S R P information of the first subframe to obtain the structure information of the first subframe, where different intervals of the RSRP information correspond to different subframe structures.
第六方面, 提供一种第二网络设备, 包括发送器和处理器, 其
中, In a sixth aspect, a second network device is provided, including a transmitter and a processor, Medium,
发送器, 用于将所述第一子帧的子帧结构信息发送给第一网络 设备, 以使得所述第一网络设备获取所述第一子帧的子帧结构信息; 其中, 所述第一子帧的子帧结构信息是需要配置的所述第一子帧的 子帧结构的特征描述。 a transmitter, configured to send the subframe structure information of the first subframe to the first network device, so that the first network device acquires subframe structure information of the first subframe, where The subframe structure information of one subframe is a feature description of the subframe structure of the first subframe to be configured.
结合第六方面, 在第六方面的第一种可能的实现方式中, 所述 子帧结构信息包括下述信息中的一种或多种: 子帧包含的 OFDM符 号的个数、 每一个所述 OFDM的符号的长度、 每一个所述 OFDM符 号的 CP的长度、 保护时间间隔的长度、 DwPTS的长度、 UPPTS 的 长度。 With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, the subframe structure information includes one or more of the following information: a number of OFDM symbols included in the subframe, each The length of the symbol of OFDM, the length of the CP of each of the OFDM symbols, the length of the guard time interval, the length of the DwPTS, and the length of the UPPTS.
结合第六方面或第六方面的第一种可能的实现方式, 在第六方 面的第二种可能的实现方式中, With reference to the sixth aspect or the first possible implementation manner of the sixth aspect, in a second possible implementation manner of the sixth aspect,
所述子帧结构信息以第一网络设备特定的信令形式发送给所述 第一网络设备; The subframe structure information is sent to the first network device in a signaling form specific to the first network device;
或者, Or,
所述子帧结构信息以组播形式发送给第一网络设备组, 其中, 所述第一网络设备组包含 Q个所述第一网络设备, 其中, 所述 Q大 于等于 2。 The subframe structure information is sent to the first network device group in a multicast manner, where the first network device group includes Q first network devices, where the Q is greater than or equal to 2.
结合第六方面, 在第六方面的第三种可能的实现方式中, 所述 处理器具体用于, With reference to the sixth aspect, in a third possible implementation manner of the sixth aspect, the
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号的信息承载, 其中, N为大于等于 1 的正整数。 The subframe structure information of the first subframe is carried by information of the first N OFDM symbols of the first subframe, where N is a positive integer greater than or equal to 1.
结合第六方面的第三种可能的实现方式, 在第六方面的第四种 可能的实现方式中, 所述处理器具体用于, With reference to the third possible implementation manner of the sixth aspect, in a fourth possible implementation manner of the sixth aspect,
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号内传输的 PCFICH承载; Submesh structure information of the first subframe is carried by a PCFICH transmitted in the first N OFDM symbols of the first subframe;
或者, Or,
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM 符号内传输的类似 PCFICH 的信道承载, 其中, 所述类似
PCFICH的信道是与 PCIFCH结构相似但传输资源位置不同的信道; 或者, Submesh structure information of the first subframe is carried by a PCFICH-like channel transmitted in the first N OFDM symbols of the first subframe, where the similar The channel of the PCFICH is a channel similar to the PCIFCH structure but having different transmission resource locations; or
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号内传输的 PHICH或类似 PHICH 的信道承载, 其中, 所 述类似 PHICH 的信道是与 PHICH 结构相似传输的资源位置不同的 信道; Submesh structure information of the first subframe is carried by a PHICH or a PHICH-like channel transmitted in the first N OFDM symbols of the first subframe, where the PHICH-like channel is transmitted similarly to the PHICH structure. The location of the resource is different;
或者, Or,
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号内传输的 PDCCH承载。 The subframe structure information of the first subframe is carried by the PDCCH transmitted in the first N OFDM symbols of the first subframe.
结合第六方面的第四种可能的实现方式, 在第六方面的第五种 可能的实现方式中, 所述发送器还用于, With reference to the fourth possible implementation manner of the sixth aspect, in a fifth possible implementation manner of the sixth aspect,
向第一网络设备发送高层信令, 其中, 所述高层信令包含第一 指示信息, 用于指示所述第一子帧为固定配置子帧或可变配置子帧; 相应的, 所述处理器具体用于, Transmitting the high layer signaling to the first network device, where the high layer signaling includes first indication information, where the first subframe is used to indicate that the first subframe is a fixed configuration subframe or a variable configuration subframe; Specific to,
若所述第一子帧为固定配置子帧, 则所述 PCFICH 用来指示所 述 PDCCH所占的符号; If the first subframe is a fixed configuration subframe, the PCFICH is used to indicate a symbol occupied by the PDCCH;
若所述第一子帧为可变配置子帧, 将所述第一子帧的子帧结构 信息用所述第一子帧的前 N个 OFDM符号内传输的 PCFICH承载。 If the first subframe is a variable configuration subframe, the subframe structure information of the first subframe is carried by the PCFICH transmitted in the first N OFDM symbols of the first subframe.
结合第六方面的第四种可能的实现方式, 在第六方面的第六种 可能的实现方式中, 所述处理器具体用于, With reference to the fourth possible implementation manner of the sixth aspect, in a sixth possible implementation manner of the sixth aspect,
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号内传输的所述 PDCCH公共搜索区间内的 DCI 内的信息 承载; Submesh structure information of the first subframe is carried by information in a DCI in the PDCCH common search interval transmitted in the first N OFDM symbols of the first subframe;
或者, Or,
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号内传输的所述 PDCCH公共搜索区间内的所述 DCI 的扰 码信息或者其 CRC的扰码信息承载。 Using the subframe structure information of the first subframe with the scrambling code information of the DCI or the CRC of the CRC in the PDCCH common search interval transmitted in the first N OFDM symbols of the first subframe Hosted.
结合第六方面, 在第六方面的第七种可能的实现方式中, 所述 处理器具体用于,
将所述第一子帧的子帧结构信息用所述第一子帧的前一个子帧 的最后一个符号的信息承载。 With reference to the sixth aspect, in a seventh possible implementation manner of the sixth aspect, Submesh structure information of the first subframe is carried by information of a last symbol of a previous subframe of the first subframe.
结合第六方面, 在第六方面的第八种可能的实现方式中, 所述 处理器具体用于, With reference to the sixth aspect, in an eighth possible implementation manner of the sixth aspect,
将所述第一子帧的子帧结构信息用所述第一子帧的 PS S 的信道 或 S S S的信道或类似 PS S的信道或 S S S的信道承载, 其中, 所述类 似 P S S的信道是与所述 PS S信道结构相似但传输资源位置不同的信 道, 所述类似 S S S信道是与所述 S S S信道结构相似但传输资源位置 不同的信道。 Submesh structure information of the first subframe is carried by a channel of a PSS of the first subframe or a channel of an SSS or a channel of a PSS or a channel of an SSS, where the PSS-like channel is The PS S channel structure is similar but the transmission resource location is different, and the similar SSS channel is a channel similar to the SSS channel structure but different in transmission resource location.
结合第六方面, 在第六方面的第九种可能的实现方式中, 所述 处理器具体用于, With reference to the sixth aspect, in a ninth possible implementation manner of the sixth aspect,
将所述第一子帧的子帧结构信息用所述第一子帧的导频信息承 载; 其中, 所述导频信息包括下述导频中的一种或多种: CRS , CSI-RS , DMRS。 The subframe structure information of the first subframe is carried by the pilot information of the first subframe, where the pilot information includes one or more of the following pilots: CRS, CSI-RS , DMRS.
结合第六方面的第九种可能的实现方式, 在第六方面的第十种 可能的实现方式中, 所述处理器具体用于, With reference to the ninth possible implementation manner of the sixth aspect, in a tenth possible implementation manner of the sixth aspect,
将所述第一子帧的子帧结构信息用所述第一子帧的所述导频信 息的扰码信息或扩频码信息承载; And transmitting the subframe structure information of the first subframe by using the scrambling code information or the spreading code information of the pilot information of the first subframe;
或者, Or,
将所述第一子帧的子帧结构信息用所述第一子帧的至少两个 OFDM符号的导频信息承载。 The subframe structure information of the first subframe is carried by pilot information of at least two OFDM symbols of the first subframe.
本发明提供一种获取、 配置子帧结构的方法及网络设备, 通过 第一网络设备获取第一子帧的子帧结构信息; 根据第一子帧的子帧 结构信息的指示获取第一子帧的子帧结构。 实现动态获取、 配置子 帧结构, 使得子帧结构更适应于当前的信道传播特性, 从而使通信系统 性能提升, 解决了现有技术中使用固定的子帧结构, 子帧结构与当前 的信道传播特性适应度低, 从而使得通信系统性能降低的缺陷。 The present invention provides a method for acquiring and configuring a subframe structure, and a network device, which acquires subframe structure information of a first subframe by using a first network device, and acquires a first subframe according to an indication of subframe structure information of the first subframe. Subframe structure. The dynamic acquisition and configuration of the subframe structure are implemented, so that the subframe structure is more adapted to the current channel propagation characteristics, thereby improving the performance of the communication system, and solving the fixed subframe structure used in the prior art, the subframe structure and the current channel propagation. The characteristic is low in adaptability, which leads to a defect in the performance of the communication system.
附图说明 DRAWINGS
为了更清楚地说明本发明实施例或现有技术中的技术方案, 下
面将对实施例或现有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面描述中的附图仅仅是本发明的一些实施例, 对于 本领域普通技术人员来讲, 在不付出创造性劳动的前提下, 还可以 根据这些附图获得其他的附图。 In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set forth in the description of the claims Other drawings may also be obtained from these drawings without the use of creative labor.
图 1 A 为本发明实施例提供的一种获取子帧结构的方法的流程 示意图; FIG. 1 is a schematic flowchart of a method for acquiring a subframe structure according to an embodiment of the present invention;
图 1 B为本发明实施例提供的一种信道场景示意图; FIG. 1B is a schematic diagram of a channel scenario according to an embodiment of the present invention;
图 2 为本发明实施例提供的一种发送子帧结构的方法的流程示 意图; FIG. 2 is a schematic flowchart of a method for transmitting a subframe structure according to an embodiment of the present invention;
图 3 为本发明实施例提供的一种第一网络设备的装置结构示意 图; FIG. 3 is a schematic structural diagram of a device of a first network device according to an embodiment of the present disclosure;
图 4 为本发明实施例提供的一种第二网络设备的装置结构示意 图; FIG. 4 is a schematic structural diagram of a device of a second network device according to an embodiment of the present disclosure;
图 5 为本发明实施例提供的另一种第一网络设备的装置结构示 意图; FIG. 5 is a schematic structural diagram of another apparatus of a first network device according to an embodiment of the present disclosure;
图 6 为本发明实施例提供的另一种第二网络设备的装置结构示 意图。 FIG. 6 is a schematic structural diagram of another apparatus of a second network device according to an embodiment of the present invention.
具体实施方式 detailed description
下面将结合本发明实施例中的附图, 对本发明实施例中的技术 方案进行清楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明 一部分实施例, 而不是全部的实施例。 基于本发明中的实施例, 本 领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他 实施例, 都属于本发明保护的范围。 The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
实施例一 Embodiment 1
本发明实施例一提供一种获取子帧结构的方法, 参见图 1 A , 该 方法可以包括: A method for obtaining a subframe structure is provided in Embodiment 1 of the present invention. Referring to FIG. 1A, the method may include:
101、 第一网络设备获取第一子帧的子帧结构信息; 101. The first network device acquires subframe structure information of the first subframe.
其中, 第一子帧的子帧结构信息中包含的信息是对第一子帧的 子帧结构的特征的描述, 子帧结构信息可以包括下述信息中的一种
或多种: 子帧包含的 OFDM符号的个数、 每一个 OFDM的符号的长 度、 每一个 OFDM符号的 CP的长度、 保护时间间隔的长度、 DwPTS 的长度、 UPPTS 的长度; 第一子帧结构信息中包含的信息内容取决 于第一子帧的类型及第一子帧需要调整的部分, 本发明对此不进行 具体限定。 The information included in the subframe structure information of the first subframe is a description of a feature of a subframe structure of the first subframe, and the subframe structure information may include one of the following information. Or a plurality of: the number of OFDM symbols included in the subframe, the length of the symbol of each OFDM, the length of the CP of each OFDM symbol, the length of the guard interval, the length of the DwPTS, the length of the UPPTS; the first subframe structure The content of the information included in the information depends on the type of the first subframe and the portion of the first subframe that needs to be adjusted. The present invention does not specifically limit this.
其中, 子帧结构信息可以以第一网络设备特定的信令形式发送 给第一网络设备; 或者, 可以以组播的形式发送给第一网络设备组, 例如以第一网络设备组特定的信令形式发送给第 ―网络设备组, 例 如釆用类似 LTE中的 DCI format3 , 3A的形式, 在这个信令包中的 子帧结构信息是针对一个第一网络设备组; 其中, 第一网络设备组 包含 Q个第一网络设备, 其中, 所述 Q大于等于 2 ; 子帧结构信息 的发送形式, 可以根据实际需求确定, 本发明对此不进行限制。 The subframe structure information may be sent to the first network device in a signaling manner specific to the first network device; or may be sent to the first network device group in a multicast manner, for example, the first network device group specific message. The form is sent to the first network device group, for example, in the form of DCI format3, 3A in LTE, and the subframe structure information in the signaling packet is for a first network device group; wherein, the first network device The group includes the Q first network devices, where the Q is greater than or equal to 2; the transmission form of the subframe structure information may be determined according to actual needs, and the present invention does not limit this.
第一网络设备获取子帧结构的方法取决于与第一网络设备通信 的设备发送子帧结构的方法, 具体的, 第一网络设备可以釆用下述 任一种与发送子帧结构的方法对应的方法获取第一子帧的子帧结构 信息: The method for the first network device to acquire the subframe structure depends on the method for the device that communicates with the first network device to send the subframe structure. Specifically, the first network device may use any one of the following methods corresponding to the method for transmitting the subframe structure. The method obtains the subframe structure information of the first subframe:
方法一、 第一网络设备检测第一子帧的前 N个 OFDM符号的信 息获取第一子帧的子帧结构信息,其中, N为大于等于 1 的正整数; 其中, 第一网络设备具体可以釆用下述 4 种方式中的任意一种 检测第一子帧的前 N个 OFDM符号的信息获取第一子帧的子帧结构 信息: The first network device detects the information of the first N OFDM symbols of the first subframe to obtain the subframe structure information of the first subframe, where N is a positive integer greater than or equal to 1 The information of the first N OFDM symbols of the first subframe is detected by using any one of the following four methods to obtain the subframe structure information of the first subframe:
1、 第一网络设备检测第一子帧的前 N个 OFDM符号内传输的 PCFICH获取第一子帧的子帧结构信息; 1. The first network device detects that the PCFICH transmitted in the first N OFDM symbols of the first subframe acquires subframe structure information of the first subframe.
其中, PCFICH是用来指明 PDCCH在子帧内所占用的符号个数, 在子帧的第一个 OFDM符号中传输, 当第一子帧的子帧结构信息用 第一子帧的前 N个 OFDM符号内传输的 PCFICH承载时, 第一网络 设备可以通过下述方式中的任意一种检测第一子帧的前 N个 OFDM 符号内传输的 PCFICH获取第一子帧的子帧结构信息: The PCFICH is used to indicate the number of symbols occupied by the PDCCH in the subframe, and is transmitted in the first OFDM symbol of the subframe, and the subframe structure information of the first subframe uses the first N subframes of the first subframe. When the PCFICH is transmitted in the OFDM symbol, the first network device may detect, by using any one of the following manners, the PCFICH transmitted in the first N OFDM symbols of the first subframe to obtain the subframe structure information of the first subframe:
第一方式、 PCFICH的大小为 2比特, 可以指示 4种状态, 其中
前三种状态仍然用于指明 PDCCH在子帧内所占用的符号个数,空余 的第四种状态可以用来指示第一子帧的子帧结构信息, 则第一网络 设备检测第一子帧的前 N个 OFDM符号内传输的 PCFICH的第四种 状态获取第一子帧的子帧结构信息。 In the first mode, the size of the PCFICH is 2 bits, and four states can be indicated, where The first three states are still used to indicate the number of symbols occupied by the PDCCH in the subframe, and the fourth state of the vacancy may be used to indicate the subframe structure information of the first subframe, and the first network device detects the first subframe. The fourth state of the PCFICH transmitted in the first N OFDM symbols acquires subframe structure information of the first subframe.
第二方式、 第一网络设备接收第二网络设备发送的高层信令, 其中, 高层信令包含第一指示信息, 用于指示第一子帧为固定配置 子帧或可变配置子帧; The second mode, the first network device receives the high layer signaling sent by the second network device, where the high layer signaling includes the first indication information, where the first subframe is used to indicate that the first subframe is a fixed configuration subframe or a variable configuration subframe.
第一网络设备若根据第一指示信息判断第一子帧为可变配置子 帧, 则第一网络设备检测第一子帧的前 N 个 OFDM 符号内传输的 PCFICH ,将 PCFICH解析为第一子帧的子帧结构信息,此时, PCFICH 指示的 PDCCH 占用的符号数固定; If the first network device determines that the first subframe is a variable configuration subframe according to the first indication information, the first network device detects the PCFICH transmitted in the first N OFDM symbols of the first subframe, and parses the PCFICH into the first subframe. The subframe structure information of the frame. At this time, the number of symbols occupied by the PDCCH indicated by the PCFICH is fixed;
第一网络设备若根据第一指示信息判断第一子帧为固定配置子 帧, 则第一子帧的前 N 个 OFDM 符号内传输的 PCFICH 解析为 PDCCH 占用的符号数。 If the first network device determines that the first subframe is a fixed configuration subframe according to the first indication information, the PCFICH transmitted in the first N OFDM symbols of the first subframe is parsed into the number of symbols occupied by the PDCCH.
第三方式、 PCIFCH的 4种状态既指示 PDCCH的符号个数, 同 时对应不同的子帧结构, 即可以通过 PCIFCH 不同的状态指示不同 的子帧结构; 第一网络设备检测 PCIFCH 的状态根据对应关系则可 以获取第一子帧的子帧结构信息; 其中, PCIFCH的 4种状态与指示 的 PDCCH的符号个数以及对应的子帧结构可以釆用表格的形式,参 见表 1 ; 当然, PCIFCH的 4种状态与指示的 PDCCH的符号个数以 及对应的子帧结构也可以釆用其他形式。 In the third mode, the four states of the PCIFCH indicate the number of symbols of the PDCCH, and corresponding to different subframe structures, that is, different subframe structures may be indicated by different states of the PCIFCH; the first network device detects the state of the PCIFCH according to the corresponding relationship. The subframe structure information of the first subframe may be obtained, where the four states of the PCIFCH and the number of symbols of the indicated PDCCH and the corresponding subframe structure may be in the form of a table, see Table 1; of course, the PCIFCH 4 The state and the number of symbols of the indicated PDCCH and the corresponding subframe structure may also be in other forms.
表 1 Table 1
需要说明的是, 表 1 只是以表格的形式体现一种 PCIFCH 的 4 种状态与指示的 PDCCH 的符号个数以及对应的子帧结构的相互关
系,对于 PCIFCH的 4种状态与指示的 PDCCH的符号个数以及对应 的子帧结构的相互关系以及对应关系中的内容, 可以根据实际需求 进行确定, 本发明对此不进行限制。 It should be noted that Table 1 only reflects the four states of a PCIFCH and the number of indicated PDCCH symbols and the corresponding subframe structure in the form of a table. For example, the relationship between the four states of the PCIFCH and the number of the indicated PDCCH symbols and the corresponding subframe structure and the content of the corresponding relationship may be determined according to actual requirements, which is not limited by the present invention.
2、 第一网络设备检测第一子帧的前 N个 OFDM符号内传输的 类似 PCFICH 的信道获取第一子帧的子帧结构信息, 其中, 类似 PCFICH的信道是与 PCIFCH结构相似但传输资源位置不同的信道。 2. The first network device detects a PCFICH-like channel transmitted in the first N OFDM symbols of the first subframe to obtain subframe structure information of the first subframe, where the PCFICH-like channel is similar to the PCIFCH structure but transmits the resource location. Different channels.
PCFICH的信息经过编码调制得到 16个 QPSK符号,在 4个 REG 传输, 每个 REG 包含 4 个 RE , PCFICH在频域上的起始位置根据 cell ID得到。 新的用来指示子帧结构的信道同样可以釆用多个 REG 传输, 并且可以与 PCFICH进行频率复用或者在不同的 OFDM符号 上传输, 不同频域位置和时域位置传输的新的信道可以隐式指示不 同的子帧结构信息; The PCFICH information is encoded and modulated to obtain 16 QPSK symbols, which are transmitted in 4 REGs, each REG contains 4 REs, and the starting position of the PCFICH in the frequency domain is obtained according to the cell ID. The new channel used to indicate the subframe structure can also use multiple REG transmissions, and can be frequency-multiplexed with the PCFICH or transmitted on different OFDM symbols. New channels transmitted in different frequency domain locations and time domain locations can be used. Implicitly indicating different subframe structure information;
类似 PCFICH 的信道是在第一子帧中重新定义的, 与 PCIFCH 结构相似但传输资源位置不同的信道, 例如, 可以将类似 PCFICH 的信道在第一子帧的第二个 OFDM符号或者第一个 OFDM符号中与 PCFICH 频域不同的位置传输; 当第一子帧的子帧结构信息用类似 PCFICH的信道承载时, 第一网络设备检测第一子帧的类似 PCFICH 的信道获取第一子帧的子帧结构信息。 需要说明的是, 对于定义的 类似 PCFICH的信道的传输位置, 本发明对此不进行具体限制。 A PCFICH-like channel is a channel that is redefined in the first subframe and has a similar PCIFCH structure but different transmission resource locations. For example, a PCFICH-like channel may be in the second OFDM symbol of the first subframe or the first one. The OFDM symbol is transmitted in a different location from the PCFICH frequency domain; when the subframe structure information of the first subframe is carried by a channel similar to the PCFICH, the first network device detects the PCFICH-like channel of the first subframe to obtain the first subframe. Subframe structure information. It should be noted that the present invention does not specifically limit the transmission position of the defined PCFICH-like channel.
3、 第一网络设备检测第一子帧的前 N个 OFDM符号内传输的 PHICH或类似 PHICH的信道获取第一子帧的子帧结构信息, 其中, 类似 PHICH 的信道是与 PHICH 结构相似传输的资源位置不同的信 道; 3. The first network device detects a PHICH or a PHICH-like channel transmitted in the first N OFDM symbols of the first subframe to obtain subframe structure information of the first subframe, where the PHICH-like channel is similar to the PHICH structure. Channels with different resource locations;
4、 第一网络设备检测第一子帧的前 N个 OFDM符号内传输的 PDCCH获取第一子帧的子帧结构信息。 The first network device detects the PDCCH transmitted in the first N OFDM symbols of the first subframe to obtain the subframe structure information of the first subframe.
其中, 当第一网络设备检测第一子帧的前 N个 OFDM符号内传 输的 PDCCH获取第一子帧的子帧结构信息时,第一网络设备可以检 测第一子帧的前 N个 OFDM符号内传输的 PDCCH公共搜索区间内 的 DCI 内的信息获取第一子帧的子帧结构信息;
或者, The first network device may detect the first N OFDM symbols of the first subframe when the first network device detects the PDCCH transmitted in the first N OFDM symbols of the first subframe to obtain the subframe structure information of the first subframe. The information in the DCI in the PDCCH common search interval of the intra-transmission acquires the subframe structure information of the first subframe; or,
第一网络设备检测第一子帧的前 N个符号内传输的 PDCCH公 共搜索区间内的 DCI的扰码信息或者其 CRC的扰码信息获取第一子 帧的子帧结构信息。 The first network device detects the scrambling code information of the DCI in the PDCCH common search interval transmitted in the first N symbols of the first subframe or the scrambling code information of the CRC to obtain the subframe structure information of the first subframe.
方法二、 第一网络设备检测第一子帧的前一个子帧的最后一个 OFDM符号的信息获取第一子帧的子帧结构信息。 Method 2: The first network device detects information of a last OFDM symbol of a previous subframe of the first subframe to obtain subframe structure information of the first subframe.
方法三、 第一网络设备检测第一子帧的 PSS的信道或 SSS的信 道或类似 PSS的信道或 SSS的信道通过相关检测获取所述第一子帧 的子帧结构信息, 其中, 类似 PSS的信道是与所述 PSS信道结构相 似但传输资源位置不同的信道, 类似 SSS信道是与 SSS信道结构相 似但传输资源位置不同的信道。 Method 3: The first network device detects a channel of a PSS of a first subframe or a channel of an SSS or a channel of a PSS-like channel or an SSS, and acquires subframe structure information of the first subframe by correlation detection, where PSS-like The channel is a channel similar to the PSS channel structure but different in transmission resource position, and the similar SSS channel is a channel similar to the SSS channel structure but different in transmission resource position.
例如,可以釆用图 1B中第一子帧的第一信道和第二信道测量得 到第一子帧的子帧配置信息, 例如可以为 CP长度, 其中第一信道传 输的可以是一个序列, 第二信道传输的是另外一个序列, 通过第一 信道的序列的相关检测和第二信道的相关检测得到 CP长度; 其中, 第一信道可以是 PSS 的信道、 SSS 的信道、 类似 PSS 的信道、 SSS 的信道之一, 第二信道可以是 PSS 的信道、 SSS 的信道、 类似 PSS 的信道、 SSS的信道之一。 For example, the subframe configuration information of the first subframe may be obtained by using the first channel and the second channel of the first subframe in FIG. 1B, for example, may be a CP length, where the first channel may be a sequence, The second channel transmits another sequence, and the CP length is obtained by correlation detection of the sequence of the first channel and correlation detection of the second channel; wherein, the first channel may be a channel of the PSS, a channel of the SSS, a channel similar to the PSS, and an SSS One of the channels, the second channel may be one of a PSS channel, an SSS channel, a PSS-like channel, and an SSS channel.
方法四、 第一网络设备检测第一子帧的导频信息获取第一子帧 的子帧结构信息; 其中, 导频信息可以包括下述导频中的一种或多 种: CRS, CSI-RS, DMRS。 The fourth network device detects the pilot information of the first subframe to obtain the subframe structure information of the first subframe. The pilot information may include one or more of the following pilots: CRS, CSI- RS, DMRS.
其中, 当第一网络设备检测第一子帧的导频信息获取第一子帧 的子帧结构信息时, 第一网络设备可以检测第一子帧的导频信息的 扰码信息或扩频码信息获取第一子帧的子帧结构信息; The first network device may detect the scrambling code information or the spreading code of the pilot information of the first subframe when the first network device detects the pilot information of the first subframe to obtain the subframe structure information of the first subframe. Obtaining subframe structure information of the first subframe;
或者,检测第一子帧的至少两个 0 F D M符号的导频信息通过相关 检测获取第一子帧的子帧结构信息; 例如, 检测第 0个 OFDM符号的 CRS的序列在接收侧与本地序列做相关可以得到在 TO的位置的第一 个相关峰值,检测第 1个 OFDM符号的 CRS的序列在接收侧与本地序 列做相关可以得到在 T1的位置的第二个相关峰值, 两个峰值之间的
时间间隔则是第一子帧的 OFDM符号的长度加 CP的长度, 当 OFDM符 号的长度固定时, 就可以计算 CP的长度。 Or detecting the pilot information of the at least two OFDM symbols of the first subframe by using correlation detection to obtain the subframe structure information of the first subframe; for example, detecting the sequence of the CRS of the 0th OFDM symbol on the receiving side and the local sequence Correlation can be used to obtain the first correlation peak at the position of the TO. The sequence of the CRS detecting the first OFDM symbol is correlated with the local sequence on the receiving side to obtain a second correlation peak at the position of T1, and two peaks. Between The time interval is the length of the OFDM symbol of the first subframe plus the length of the CP. When the length of the OFDM symbol is fixed, the length of the CP can be calculated.
方法五、 第一网络设备检测第一子帧的 rank信息获取第一子帧 的子帧结构信息, 其中, 不同的 rank信息可以对应不同的子帧结构; 例如, 第一网络设备可以根据第一子帧的 r ank的取值来确定子 帧结构; 当 rank的值小于第一预设阈值时, 此时信道的散射径比较 少, 第一子帧釆用第一 CP , 当 r ank 的值大于第一预设阈值时, 第 一子帧可以釆用第二 CP , 其中第一 CP < 当前 CP <第二 CP ; Method 5: The first network device detects the rank information of the first subframe to obtain the subframe structure information of the first subframe, where different rank information may correspond to different subframe structures; for example, the first network device may be according to the first The value of r ank of the subframe is used to determine the subframe structure; when the value of rank is less than the first preset threshold, the scattering path of the channel is relatively small, and the first subframe uses the first CP, when the value of r ank When the first preset threshold is greater than the first preset threshold, the first subframe may use the second CP, where the first CP < current CP < the second CP;
需要说明的是, 上述示例只是举例说明第一网络设备检测第一 子帧的 rank信息获取第一子帧的子帧结构信息的方式, 具体的第一 预设阈值、 第一 CP、 第二 CP的取值, 可以根据实际需求确定, 本发 明对此不进行具体限制。 It should be noted that the foregoing example is only used to illustrate the manner in which the first network device detects the rank information of the first subframe to obtain the subframe structure information of the first subframe, and the specific first preset threshold, the first CP, and the second CP. The value of the present invention can be determined according to actual needs, and the present invention does not specifically limit this.
方法六、 第一网络设备检测第一子帧的 RSRP 信息获取第一子 帧的结构信息, 其中, 不同的 RSRP 信息所在的区间可以对应不同 的子帧结构。 Method 6: The first network device detects the RSRP information of the first subframe to obtain the structure information of the first subframe, where different RSRP information ranges may correspond to different subframe structures.
例如, 第一网络设备可以根据第一子帧的 RSRP 的取值来确定 子帧结构; 当 RSRP的值大于第二预设阈值时, 此时信道是 LOS径 的可能性比较大, 第一子帧釆用第三 CP , 当 RSRP的值小于第二预 设阈值时, 第一子帧可以釆用第四 CP , 其中第三 CP < 当前 CP <第 四 CP ; For example, the first network device may determine the subframe structure according to the value of the RSRP of the first subframe. When the value of the RSRP is greater than the second preset threshold, the probability that the channel is the LOS path is relatively large. The frame uses the third CP. When the value of the RSRP is less than the second preset threshold, the first subframe may use the fourth CP, where the third CP < current CP < fourth CP;
需要说明的是, 上述示例只是举例说明第一网络设备检测第一 子帧的 RSRP 信息获取第一子帧的子帧结构信息的方式, 具体的第 二预设阈值、 第三 CP、 第四 CP 的取值, 可以根据实际需求确定, 本发明对此不进行具体限制。 It should be noted that the foregoing example is only used to illustrate the manner in which the first network device detects the RSRP information of the first subframe to obtain the subframe structure information of the first subframe, and the specific second preset threshold, the third CP, and the fourth CP. The value of the present invention can be determined according to actual needs, and the present invention does not specifically limit this.
102、 根据所述第一子帧的子帧结构信息的指示获取第一子帧的 子帧结构, 其中, 第一子帧的子帧结构信息是第一子帧的子帧结构 的特征描述。 The subframe structure of the first subframe is obtained according to the indication of the subframe structure information of the first subframe, where the subframe structure information of the first subframe is a feature description of the subframe structure of the first subframe.
其中, 第一子帧的子帧结构信息中包含的信息是对第一子帧的 子帧结构的特征的描述, 根据子帧结构包含的内容可以不同, 根据
步骤 101 中获取的第一子帧的子帧结构信息中包含的信息的指示, 则可获取第一子帧的子帧结构。 The information included in the subframe structure information of the first subframe is a description of a feature of the subframe structure of the first subframe, and the content included in the subframe structure may be different, according to The indication of the information included in the subframe structure information of the first subframe acquired in step 101 may acquire the subframe structure of the first subframe.
子帧结构是指子帧中包含的 OFDM符号的个数、 每一个 OFDM 的符号的长度、 每一个 OFDM符号的 CP 的长度、 保护时间间隔的 长度、 DwPTS的长度、 UPPTS的长度等; 对于不同的子帧类型, 子 帧结构可以包含的不同的信息; 例如, 对于长期演进 ( Long Term Evolution , 简称 LTE ) 系统的正常子帧, 子帧结构可以包含子帧中 包含的 OFDM 符号的个数、 每一个 OFDM 的符号的长度、 每一个 OFDM符号的 CP 的长度; 对于 LTE 系统的特殊子帧, 子帧结构可 以包含保护时间间隔的长度、 DwPTS的长度、 UPPTS的长度; 需要 说明的事, 子帧结构具体指的内容, 可以根据子帧类型的不同具体 确定, 本发明对此不进行限定。 The subframe structure refers to the number of OFDM symbols included in the subframe, the length of the symbol of each OFDM, the length of the CP of each OFDM symbol, the length of the guard interval, the length of the DwPTS, the length of the UPPTS, and the like; Subframe type, different information that the subframe structure may contain; for example, for a normal subframe of a Long Term Evolution (LTE) system, the subframe structure may include the number of OFDM symbols included in the subframe, The length of the symbol of each OFDM, the length of the CP of each OFDM symbol; For the special subframe of the LTE system, the subframe structure may include the length of the guard interval, the length of the DwPTS, and the length of the UPPTS; The content of the frame structure may be specifically determined according to the type of the subframe, which is not limited by the present invention.
本发明提供一种获取子帧结构的方法, 通过第一网络设备检测 第一子帧获取第一子帧的子帧结构信息; 根据第一子帧的子帧结构 信息的指示获取第一子帧的子帧结构。 实现动态获取、 配置子帧结 构, 使得子帧结构更适应于当前的信道传播特性, 从而使通信系统性能提 升, 解决了现有技术中使用固定的子帧结构, 子帧结构与当前的信道 传播特性适应度低, 从而使得通信系统性能降低的缺陷。 The present invention provides a method for acquiring a subframe structure, where the first subframe detects that the first subframe acquires subframe structure information of the first subframe, and obtains the first subframe according to the indication of the subframe structure information of the first subframe. Subframe structure. The dynamic acquisition and configuration of the subframe structure are implemented, so that the subframe structure is more adapted to the current channel propagation characteristics, thereby improving the performance of the communication system, and solving the fixed subframe structure used in the prior art, the subframe structure and the current channel propagation. The characteristic is low in adaptability, which leads to a defect in the performance of the communication system.
实施例二 Embodiment 2
本发明实施例二提供一种配置子帧结构的方法, 在发送子帧结 构信息之前, 已经根据传输环境确定了适合该传输环境的子帧的结 构, 本发明对于根据传输环境确定子帧结构的方法不进行具体要求。 参见图 2 , 该方法可以包括: A second embodiment of the present invention provides a method for configuring a subframe structure. Before transmitting subframe structure information, a structure of a subframe suitable for the transmission environment has been determined according to a transmission environment, and the present invention determines a subframe structure according to a transmission environment. The method does not require specific requirements. Referring to Figure 2, the method can include:
201、 将第一子帧的子帧结构信息发送给第一网络设备, 以使得 第一网络设备获取第一子帧的子帧结构信息, 其中, 所述第一子帧 的子帧结构信息是需要配置的所述第一子帧的子帧结构的特征描 述。 The subframe structure information of the first subframe is sent to the first network device, so that the first network device acquires the subframe structure information of the first subframe, where the subframe structure information of the first subframe is A feature description of a subframe structure of the first subframe to be configured.
其中, 子帧结构信息可以包括下述信息中的一种或多种: 子帧 包含的 OFDM 符号的个数、 每一个 OFDM 的符号的长度、 每一个
OFDM符号的 CP 的长度、 保护时间间隔的长度、 DwPTS 的长度、 UPPTS 的长度; 第一子帧结构信息中包含的信息内容取决于第一子 帧的类型及第一子帧需要调整的部分, 本发明对此不进行具体限定。 The subframe structure information may include one or more of the following information: the number of OFDM symbols included in the subframe, the length of each OFDM symbol, and each The length of the CP of the OFDM symbol, the length of the guard interval, the length of the DwPTS, and the length of the UPPTS; the content of the information contained in the first subframe structure information depends on the type of the first subframe and the portion of the first subframe that needs to be adjusted. The present invention is not specifically limited thereto.
其中, 子帧结构信息可以以第一网络设备特定的信令形式发送 给第一网络设备; 或者, 可以以组播的形式发送给第一网络设备组, 例如以第一网络设备组特定的信令形式发送给第 ―网络设备组, 例 如釆用类似 LTE中的 DCI format3 , 3A的形式, 在这个信令包中的 子帧结构信息是针对一个第一网络设备组; 其中, 第一网络设备组 包含 Q个第一网络设备, 其中, 所述 Q大于等于 2 ; 子帧结构信息 的发送形式, 可以根据实际需求确定, 本发明对此不进行限制。 The subframe structure information may be sent to the first network device in a signaling manner specific to the first network device; or may be sent to the first network device group in a multicast manner, for example, the first network device group specific message. The form is sent to the first network device group, for example, in the form of DCI format3, 3A in LTE, and the subframe structure information in the signaling packet is for a first network device group; wherein, the first network device The group includes the Q first network devices, where the Q is greater than or equal to 2; the transmission form of the subframe structure information may be determined according to actual needs, and the present invention does not limit this.
需要说明的是, 将第一子帧的子帧结构信息用不同的信息承载 发送给第一网络设备, 相应的, 当第一网络设备检测第一子帧获取 子帧结构时, 可以在对应的信息中获取第一子帧的子帧结构信息进 而获取第一子帧的子帧结构。 It should be noted that the subframe structure information of the first subframe is sent to the first network device by using different information bearers. Correspondingly, when the first network device detects the first subframe to obtain the subframe structure, the corresponding Obtaining the subframe structure information of the first subframe and acquiring the subframe structure of the first subframe.
具体的, 可以釆用下述方法中的任意一种方法将第一子帧的子 帧结构信息发送给第一网络设备: Specifically, the subframe structure information of the first subframe may be sent to the first network device by using any one of the following methods:
方法一、 将第一子帧的子帧结构信息用第一子帧的前 N 个 OFDM符号的信息承载发送给第一网络设备, 其中, N为大于等于 1 的正整数。 Method 1: Send the subframe structure information of the first subframe to the first network device by using the information carrier of the first N OFDM symbols of the first subframe, where N is a positive integer greater than or equal to 1.
其中, 将第一子帧的子帧结构信息用第一子帧的前 N个 OFDM 符号的信息承载发送给第一网络设备可以釆用下述 4 种方式中的任 意一种实现: The transmitting the subframe structure information of the first subframe to the first network device by using the information carrier of the first N OFDM symbols of the first subframe may be implemented by using any one of the following four methods:
1、 将第一子帧的子帧结构信息用第一子帧的前 N个 OFDM符 号内传输的 PCFICH承载发送给第一网络设备; 1. Transmitting the subframe structure information of the first subframe to the first network device by using the PCFICH bearer transmitted in the first N OFDM symbols of the first subframe;
其中, PCFICH是用来指明 PDCCH在子帧内所占用的符号个数, 在子帧的第一个 OFDM符号中发送, 当将第一子帧的子帧结构信息 用第一子帧的前 N个 OFDM符号内传输的 PCFICH承载发送给第一 网络设备时, 将第一子帧的子帧结构信息用第一子帧的前 N 个 OFDM符号内传输的 PCFICH承载发送给第一网络设备可以包括下
述方式: The PCFICH is used to indicate the number of symbols occupied by the PDCCH in the subframe, and is sent in the first OFDM symbol of the subframe, when the subframe structure information of the first subframe is used in the first subframe of the first subframe. When the PCFICH bearer transmitted in the OFDM symbol is sent to the first network device, sending the subframe structure information of the first subframe to the first network device by using the PCFICH bearer transmitted in the first N OFDM symbols of the first subframe may include Under Description:
第一方式、 PCFICH的大小为 2比特, 可以指示 4种状态, 其中 前三种状态仍然用于指明 PDCCH在子帧内所占用的符号个数,空余 的第四种状态可以包含第一子帧的子帧结构信息; The first mode, the size of the PCFICH is 2 bits, and the four states may be indicated, where the first three states are still used to indicate the number of symbols occupied by the PDCCH in the subframe, and the fourth state that is spare may include the first subframe. Subframe structure information;
第二方式、 向第一网络设备发送高层信令, 其中, 高层信令包 含第一指示信息, 用于指示第一子帧为固定配置子帧或可变配置子 帧; The second mode, the high-level signaling is sent to the first network device, where the high-level signaling includes the first indication information, where the first subframe is used to indicate that the first subframe is a fixed configuration subframe or a variable configuration subframe.
若第一指示信息指示第一子帧为可变配置子帧, 将第一子帧的 子帧结构信息用第一子帧的前 N个 OFDM符号内传输的 PCFICH承 载, 此时, 所述 PCFICH指示的 PDCCH 占用的符号数固定; If the first indication information indicates that the first subframe is a variable configuration subframe, the subframe structure information of the first subframe is carried by the PCFICH transmitted in the first N OFDM symbols of the first subframe, where the PCFICH is The number of symbols occupied by the indicated PDCCH is fixed;
若第一指示信息指示第一子帧为固定配置子帧, 则第一子帧的 前 N个 OFDM符号内传输的 PCFICH依然用来指示 PDCCH 占用的 符号数。 If the first indication information indicates that the first subframe is a fixed configuration subframe, the PCFICH transmitted in the first N OFDM symbols of the first subframe is still used to indicate the number of symbols occupied by the PDCCH.
第三方式、 将 PCIFCH的 4种状态既指示 PDCCH的符号个数, 同时对应不同的子帧结构, 发送 PCIFCH 则可以通过 PCIFCH 不同 的状态将子帧结构信息发送给第一网络设备; PCIFCH的 4种状态与 指示的 PDCCH 的符号个数以及对应的子帧结构可以釆用表格的形 式, 参见表 1 ; 当然, PCIFCH的 4种状态与指示的 PDCCH的符号 个数以及对应的子帧结构也可以釆用其他形式。 In a third mode, the four states of the PCIFCH indicate the number of symbols of the PDCCH, and corresponding to different subframe structures. When the PCIFCH is sent, the subframe structure information may be sent to the first network device by using different states of the PCIFCH; The state and the indicated number of symbols of the PDCCH and the corresponding subframe structure may be in the form of a table, see Table 1; of course, the four states of the PCIFCH and the number of symbols of the indicated PDCCH and the corresponding subframe structure may also釆Use other forms.
2、 将第一子帧的子帧结构信息用第一子帧的前 N个 OFDM符 号内传输的类似 PCFICH 的信道承载发送给第一网络设备, 其中, 类似 PCFICH 的信道是与 PCIFCH 结构相似但传输资源位置不同的 信道; 2. Transmitting the subframe structure information of the first subframe to the first network device by using a PCFICH-like channel bearer transmitted in the first N OFDM symbols of the first subframe, where the PCFICH-like channel is similar to the PCIFCH structure but a channel with a different transmission resource location;
类似 PCFICH 的信道是在第一子帧中重新定义的、 与 PCIFCH 结构相似但传输资源位置不同的信道, 例如, 可以将类似 PCFICH 的信道在第一子帧的第二个 OFDM符号或者第一个 OFDM符号中与 PCFICH 频域不同的位置发送, 将第一子帧的子帧结构信息用类似 PCFICH的信道承载。 需要说明的是, 对于定义的类似 PCFICH的信 道的发送位置, 本发明对此不进行具体限制。
3、 将第一子帧的子帧结构信息用第一子帧的前 N个 OFDM符 号内传输的 PHICH或类似 PHICH的信道承载发送给第一网络设备, 其中, 类似 PHICH 的信道是与 PHICH 结构相似传输的资源位置不 同的信道; A PCFICH-like channel is a channel that is redefined in the first subframe and has a similar PCIFCH structure but different transmission resource locations. For example, a PCFICH-like channel may be in the second OFDM symbol of the first subframe or the first one. The OFDM symbol is transmitted at a position different from the PCFICH frequency domain, and the subframe structure information of the first subframe is carried by a channel similar to the PCFICH. It should be noted that the present invention does not specifically limit the transmission position of the channel similar to the PCFICH. 3. Transmitting the subframe structure information of the first subframe to the first network device by using a PHICH or a PHICH-like channel bearer transmitted in the first N OFDM symbols of the first subframe, where the PHICH-like channel is associated with the PHICH structure. Channels with similarly transmitted resource locations;
4、 将第一子帧的子帧结构信息用第一子帧的前 N个 OFDM符 号内传输的 PDCCH承载发送给第一网络设备。 4. The subframe structure information of the first subframe is sent to the first network device by using the PDCCH bearer transmitted in the first N OFDM symbols of the first subframe.
具体的, 可以将第一子帧的子帧结构信息用第一子帧的前 N个 OFDM符号内传输的 PDCCH公共搜索区间内的 DCI 内的信息承载 发送给第一网络设备; 或者, 将第一子帧的子帧结构信息用第一子 帧的前 N个 OFDM符号内传输的 PDCCH公共搜索区间内的 DCI的 扰码信息或者其 CRC的扰码信息承载发送给第一网络设备。 Specifically, the subframe structure information of the first subframe may be sent to the first network device by using the information bearer in the DCI in the PDCCH common search interval transmitted in the first N OFDM symbols of the first subframe; or The subframe structure information of one subframe is transmitted to the first network device by using the scrambling code information of the DCI in the PDCCH common search interval transmitted in the first N OFDM symbols of the first subframe or the scrambling code information of the CRC.
方法二、 将第一子帧的子帧结构信息用第一子帧的前一个子帧 的最后一个符号的信息承载发送给第一网络设备。 Method 2: The subframe structure information of the first subframe is sent to the first network device by using the information bearer of the last symbol of the previous subframe of the first subframe.
方法三、 将第一子帧的子帧结构信息用第一子帧的 PS S 的信道 或 S S S的信道或类似 P S S的信道或 S S S的信道承载发送给第一网络 设备, 其中, 所述类似 PS S的信道是与所述 P S S信道结构相似但传 输资源位置不同的信道, 类似 S S S信道是与 S S S信道结构相似但传 输资源位置不同的信道。 Method 3: The subframe structure information of the first subframe is sent to the first network device by using the channel of the PSS of the first subframe or the channel of the SSS or the channel of the PSS or the channel of the SSS, where the PS is similar to the PS The channel of S is a channel similar to the PSS channel structure but different in transmission resource position, and the similar SSS channel is a channel similar to the SSS channel structure but different in transmission resource position.
方法四、 将第一子帧的子帧结构信息用第一子帧的导频信息承 载发送给第一网络设备; 其中, 导频信息可以包括下述导频中的一 种或多种: CRS , C SI-RS , DMRS。 Method 4: The subframe structure information of the first subframe is sent to the first network device by using the pilot information of the first subframe. The pilot information may include one or more of the following pilots: CRS , C SI-RS, DMRS.
具体的, 可以将第一子帧的子帧结构信息用第一子帧的所述导 频信 , I.的扰码信息或扩频码信息承载发送给第一网络设备; 或者, 将第一子帧的子帧结构信息用第一子帧的至少两个 OFDM符号的导 频信息承载发送给第一网络设备。 Specifically, the subframe structure information of the first subframe may be sent to the first network device by using the pilot information of the first subframe, the scrambling code information of the I. or the spreading code information; or The subframe structure information of the subframe is transmitted to the first network device by using pilot information of at least two OFDM symbols of the first subframe.
本发明实施例提供的发送子帧结构的方法, 通过将第一子帧的 子帧结构信息发送给第一网络设备, 以使得第一网络设备获取第一 子帧的子帧结构信息, 其中, 所述第一子帧的子帧结构信息是需要 配置的所述第一子帧的子帧结构的特征描述; 实现动态获取、 配置
子帧结构, 使得子帧结构更适应于当前的信道传播特性, 从而使通信系 统性能提升, 解决了现有技术中使用固定的子帧结构, 子帧结构与当 前的信道传播特性适应度低, 从而使得通信系统性能降低的缺陷。 The method for transmitting a subframe structure according to the embodiment of the present invention, by transmitting the subframe structure information of the first subframe to the first network device, so that the first network device acquires the subframe structure information of the first subframe, where The subframe structure information of the first subframe is a feature description of a subframe structure of the first subframe to be configured; implementing dynamic acquisition and configuration The subframe structure makes the subframe structure more suitable for the current channel propagation characteristics, thereby improving the performance of the communication system, and solving the fixed subframe structure used in the prior art, and the sub-frame structure has low adaptability to the current channel propagation characteristics. Thus, the performance of the communication system is degraded.
实施例三 Embodiment 3
本发明实施例三提供一种第一网络设备 30 , 参见图 3 , 该第一 网络设备 30可以包括: The third embodiment of the present invention provides a first network device 30. Referring to FIG. 3, the first network device 30 may include:
获取单元 301 , 用于检测第一子帧获取第一子帧的子帧结构信 息; The acquiring unit 301 is configured to detect, by using the first subframe, subframe structure information of the first subframe.
获取单元 301 还用于, 根据所述第一子帧的子帧结构信息的指 示获取所述第一子帧的子帧结构; 其中, 所述第一子帧的子帧结构 信息是所述第一子帧的子帧结构的特征描述。 The obtaining unit 301 is further configured to: acquire, according to the indication of the subframe structure information of the first subframe, a subframe structure of the first subframe, where the subframe structure information of the first subframe is the A characterization of the subframe structure of a sub-frame.
具体的, 子帧结构信息包括下述信息中的一种或多种: 子帧包 含的 OFDM符号的个数、每一个 OFDM的符号的长度、每一个 OFDM 符号的 CP 的长度、 保护时间间隔的长度、 DwPTS 的长度、 UPPTS 的长度。 Specifically, the subframe structure information includes one or more of the following information: the number of OFDM symbols included in the subframe, the length of the symbol of each OFDM, the length of the CP of each OFDM symbol, and the guard time interval. Length, length of DwPTS, length of UPPTS.
进一步的, 子帧结构信息子帧结构信息以第一网络设备特定的 信令形式发送给所述第一网络设备; Further, the subframe structure information subframe structure information is sent to the first network device in a signaling manner specific to the first network device;
或者, Or,
所述子帧结构信息以组播形式发送给第一网络设备组, 其中, 所述第一网络设备组包含 Q个第一网络设备, 其中, 所述 Q大于等 于 2。 The subframe structure information is sent to the first network device group in a multicast manner, where the first network device group includes Q first network devices, where the Q is greater than or equal to 2.
进一步的, 获取单元 301具体可以用于, Further, the obtaining unit 301 may be specifically configured to:
检测第一子帧的前 N个 OFDM符号的信息获取第一子帧的子帧 结构信息, 其中, N为大于等于 1 的正整数。 Detecting information of the first N OFDM symbols of the first subframe to obtain subframe structure information of the first subframe, where N is a positive integer greater than or equal to 1.
可选的, 获取单元 301具体可以用于, Optionally, the obtaining unit 301 is specifically configured to:
检测第一子帧的前 N个 OFDM符号内传输的 PCFICH获取第一 子帧的子帧结构信息; Detecting, by the PCFICH transmitted in the first N OFDM symbols of the first subframe, the subframe structure information of the first subframe;
或者, Or,
检测第一子帧的前 N个 OFDM符号内传输的类似 PCFICH的信
道获取第一子帧的子帧结构信息, 其中, 类似 PCFICH 的信道是与 PCIFCH结构相似但传输资源位置不同的信道; Detecting a PCFICH-like message transmitted in the first N OFDM symbols of the first subframe Obtaining subframe structure information of the first subframe, where the channel similar to the PCFICH is a channel similar to the PCIFCH structure but having different transmission resource locations;
或者, Or,
检测第一子帧的前 N 个 OFDM 符号内传输的 PHICH 或类似 PHICH的信道获取第一子帧的子帧结构信息, 其中, 类似 PHICH的 信道是与 PHICH结构相似传输的资源位置不同的信道; Detecting a PHICH or a PHICH-like channel transmitted in the first N OFDM symbols of the first subframe to obtain subframe structure information of the first subframe, where the PHICH-like channel is a channel with a different resource location than the PHICH structure.
或者, Or,
检测第一子帧的前 N个 OFDM符号内传输的 PDCCH获取所述 第一子帧的子帧结构信息。 Detecting a PDCCH transmitted in the first N OFDM symbols of the first subframe to acquire subframe structure information of the first subframe.
进一步的, 所述第一网络设备还包括, Further, the first network device further includes
接收单元 302 , 用于接收第二网络设备发送的高层信令, 其中, 高层信令包含第一指示信息, 用于指示第一子帧为固定配置子帧或 可变配置子帧; The receiving unit 302 is configured to receive the high layer signaling that is sent by the second network device, where the high layer signaling includes the first indication information, where the first subframe is used to indicate that the first subframe is a fixed configuration subframe or a variable configuration subframe.
相应的, 所述获取单元 301具体可以用于, Correspondingly, the obtaining unit 301 can be specifically configured to:
若根据第一指示信息判断所述第一子帧为固定配置子帧, 所述 第一网络设备检测所述第一子帧的前 N 个 OFDM 符号内传输的 PCFICH , 将所述 PCFICH解析为所述 PDCCH 占用的符号数; If the first subframe is determined to be a fixed configuration subframe according to the first indication information, the first network device detects a PCFICH transmitted in the first N OFDM symbols of the first subframe, and parses the PCFICH into a The number of symbols occupied by the PDCCH;
若根据第一指示信息判断所述第一子帧为可变配置子帧, 所述 第一网络设备检测所述第一子帧的前 N 个 OFDM 符号内传输的 PCFICH , 将所述 PCFICH解析为所述第一子帧的子帧结构信息, 所 述 PCFICH指示的所述 PDCCH 占用的符号数固定。 If the first subframe is determined to be a variable configuration subframe according to the first indication information, the first network device detects a PCFICH transmitted in the first N OFDM symbols of the first subframe, and parses the PCFICH into The subframe structure information of the first subframe, where the number of symbols occupied by the PDCCH indicated by the PCFICH is fixed.
示例性的, 获取单元 301具体可以用于, Exemplarily, the obtaining unit 301 may be specifically configured to:
检测第一子帧的前 N个 OFDM符号内传输的 PDCCH公共搜索 区间内的 DCI内的信息获取第一子帧的子帧结构信息; Detecting information in the DCI in the PDCCH common search interval transmitted in the first N OFDM symbols of the first subframe to obtain subframe structure information of the first subframe;
或者, Or,
检测第一子帧的前 N个符号内传输的 PDCCH公共搜索区间内 的 DCI的扰码信息或者其 CRC的扰码信息获取第一子帧的子帧结构 信息。 The scrambling code information of the DCI in the PDCCH common search interval transmitted in the first N symbols of the first subframe or the scrambling code information of the CRC is obtained to obtain the subframe structure information of the first subframe.
进一步的, 所述获取单元 301具体可以用于,
检测第一子帧的前一个子帧的最后一个 OFDM符号的信息获取 第一子帧的子帧结构信息。 Further, the acquiring unit 301 may be specifically configured to: The information of the last OFDM symbol of the previous subframe of the first subframe is detected to obtain the subframe structure information of the first subframe.
进一步的, 所述获取单元 301具体还可以用于, Further, the acquiring unit 301 may be specifically configured to:
检测第一子帧的 PSS的信道或 SSS的信道或类似 PSS的信道或 SSS 的信道通过相关检测获取第一子帧的子帧结构信息, 其中, 所 述类似 PSS的信道是与所述 PSS信道结构相似但传输资源位置不同 的信道, 类似 SSS信道是与 SSS信道结构相似但传输资源位置不同 的信道。 Detecting a channel of a PSS of a first subframe or a channel of a SSS or a channel of a PSS-like channel or an SSS, acquiring subframe structure information of a first subframe by correlation detection, where the PSS-like channel is associated with the PSS channel Channels that are similar in structure but have different transmission resource locations, similar to SSS channels, are channels that are similar in structure to the SSS channel but have different transmission resource locations.
进一步的, 所述获取单元 301具体可以用于, Further, the acquiring unit 301 may be specifically configured to:
检测第一子帧的导频信息获取第一子帧的子帧结构信息; 其中, 导频信息可以包括下述导频中的一种或多种: CRS, CSI-RS, DMRS。 Detecting pilot information of the first subframe to obtain subframe structure information of the first subframe; where, the pilot information may include one or more of the following pilots: CRS, CSI-RS, DMRS.
可选的, 所述获取单元 301具体可以用于, Optionally, the obtaining unit 301 is specifically configured to:
检测第一子帧的导频信, I,的扰码信息或扩频码信息获取第一子 帧的子帧结构信息; Detecting the pilot information of the first subframe, the scrambling code information of the I, or the spreading code information to obtain the subframe structure information of the first subframe;
或者, Or,
检测第一子帧的至少两个 OFDM符号的导频信息通过相关检测 获取第一子帧的子帧结构信息。 The pilot information of the at least two OFDM symbols of the first subframe is detected to obtain the subframe structure information of the first subframe by correlation detection.
进一步的, 所述获取单元 301具体可以用于, Further, the acquiring unit 301 may be specifically configured to:
检测第一子帧的 rank信息获取第一子帧的子帧结构信息,其中, 不同的 rank信息可以对应不同的子帧结构; Detecting the rank information of the first subframe to obtain the subframe structure information of the first subframe, where different rank information may correspond to different subframe structures;
或者, Or,
检测第一子帧的 RSRP 信息获取第一子帧的结构信息, 其中, 不同的 RSRP信息所在的区间可以对应不同的子帧结构。 The RSRP information of the first subframe is detected to obtain the structure information of the first subframe, where the interval in which the different RSRP information is located may correspond to different subframe structures.
本发明实施例提供一种第一网络设备 30, 通过第一网络设备获 取第一子帧的子帧结构信息; 根据第一子帧的子帧结构信息的指示 获取第一子帧的子帧结构。 实现动态获取、 配置子帧结构, 使得子帧 结构更适应于当前的信道传播特性, 从而使通信系统性能提升, 解决了 现有技术中使用固定的子帧结构, 子帧结构与当前的信道传播特性适
应度低, 从而使得通信系统性能降低的缺陷。 The embodiment of the present invention provides a first network device 30, which acquires subframe structure information of a first subframe by using a first network device, and acquires a subframe structure of the first subframe according to the indication of subframe structure information of the first subframe. . The dynamic acquisition and configuration of the subframe structure are implemented, so that the subframe structure is more adapted to the current channel propagation characteristics, thereby improving the performance of the communication system, and solving the fixed subframe structure used in the prior art, the subframe structure and the current channel propagation. Suitable for characteristics The disadvantage is that the performance of the communication system is low.
实施例四 Embodiment 4
本发明实施例四提供一种第二网络设备 40 , 参见图 4 , 该第二 网络设备 40可以包括: The fourth embodiment of the present invention provides a second network device 40. Referring to FIG. 4, the second network device 40 may include:
发送单元 401 ,用于将第一子帧的子帧结构信息发送给第一网络 设备, 以使得第一网络设备获取第一子帧的子帧结构信息; 其中, 第一子帧的子帧结构信息是需要配置的第一子帧的子帧结构的特征 描述。 The sending unit 401 is configured to send the subframe structure information of the first subframe to the first network device, so that the first network device acquires the subframe structure information of the first subframe, where the subframe structure of the first subframe The information is a characterization of the subframe structure of the first subframe that needs to be configured.
可选的, 子帧结构信息可以包括下述信息中的一种或多种: 子 帧包含的 OFDM符号的个数、 每一个 OFDM的符号的长度、 每一个 OFDM符号的 CP 的长度、 保护时间间隔的长度、 DwPTS 的长度、 UPPTS的长度。 Optionally, the subframe structure information may include one or more of the following information: the number of OFDM symbols included in the subframe, the length of the symbol of each OFDM, the length of the CP of each OFDM symbol, and the guard time. The length of the interval, the length of the DwPTS, and the length of the UPPTS.
进一步的, 子帧结构信息以第一网络设备特定的信令形式发送 给所述第一网络设备; Further, the subframe structure information is sent to the first network device in a signaling manner specific to the first network device;
或者, Or,
所述子帧结构信息以组播形式发送给第一网络设备组, 其中, 所述第一网络设备组包含 Q个第一网络设备, 其中, 所述 Q大于等 于 2。 The subframe structure information is sent to the first network device group in a multicast manner, where the first network device group includes Q first network devices, where the Q is greater than or equal to 2.
进一步的, 所述发送单元 401具体可以用于, Further, the sending unit 401 may be specifically configured to:
将第一子帧的子帧结构信息用第一子帧的前 N个 OFDM符号的 信息承载发送给第一网络设备, 其中, N为大于等于 1 的正整数。 The subframe structure information of the first subframe is sent to the first network device by using the information carrier of the first N OFDM symbols of the first subframe, where N is a positive integer greater than or equal to 1.
可选的, 所述发送单元 401具体可以用于, Optionally, the sending unit 401 is specifically configured to:
将第一子帧的子帧结构信息用第一子帧的前 N个 OFDM符号内 传输的 PCFICH承载发送给第一网络设备; Transmitting the subframe structure information of the first subframe to the first network device by using the PCFICH bearer transmitted in the first N OFDM symbols of the first subframe;
或者, Or,
将第一子帧的子帧结构信息用第一子帧的前 N个 OFDM符号内 传输的类似 PCFICH 的信道承载发送给第一网络设备, 其中, 类似 PCFICH的信道是与 PCIFCH结构相似但传输资源位置不同的信道; 或者,
将第一子帧的子帧结构信息用第一子帧的前 N个 OFDM符号内 传输的 PHICH 或类似 PHICH 的信道承载发送给第一网络设备, 其 中, 类似 PHICH 的信道是与 PHICH 结构相似传输的资源位置不同 的信道; Transmitting the subframe structure information of the first subframe to the first network device by using a PCFICH-like channel bearer transmitted in the first N OFDM symbols of the first subframe, where the PCFICH-like channel is similar to the PCIFCH structure but transmits resources. Channels with different locations; or, Transmitting the subframe structure information of the first subframe to the first network device by using a PHICH or a PHICH-like channel bearer transmitted in the first N OFDM symbols of the first subframe, where the PHICH-like channel is transmitted similarly to the PHICH structure. The location of the resource is different;
或者, Or,
将第一子帧的子帧结构信息用第一子帧的前 N个 OFDM符号内 传输的 PDCCH承载发送给第一网络设备。 The subframe structure information of the first subframe is transmitted to the first network device by using the PDCCH bearer transmitted in the first N OFDM symbols of the first subframe.
进一步的, 所述发送单元 401 还可以用于, Further, the sending unit 401 is further configured to:
向第一网络设备发送高层信令, 其中, 高层信令包含第一指示 信息, 用于指示第一子帧为固定配置子帧或可变配置子帧; Sending the high layer signaling to the first network device, where the high layer signaling includes the first indication information, where the first subframe is used to indicate that the first subframe is a fixed configuration subframe or a variable configuration subframe.
相应的, 所述发送单元 401具体可以用于, Correspondingly, the sending unit 401 may be specifically configured to:
若第一子帧为固定配置子帧,则 PCFICH用来指示 PDCCH所占 的符号; If the first subframe is a fixed configuration subframe, the PCFICH is used to indicate a symbol occupied by the PDCCH;
若第一子帧为可变配置子帧, 将第一子帧的子帧结构信息用第 一子帧的前 N个 OFDM符号内传输的 PCFICH承载发送给第一网络 设备。 If the first subframe is a variable configuration subframe, the subframe structure information of the first subframe is sent to the first network device by using the PCFICH bearer transmitted in the first N OFDM symbols of the first subframe.
可选的, 所述发送单元 401具体可以用于, Optionally, the sending unit 401 is specifically configured to:
将第一子帧的子帧结构信息用第一子帧的前 N个 OFDM符号内 传输的 PDCCH公共搜索区间内的 DCI 内的信息承载发送给第一网 络设备; Transmitting the subframe structure information of the first subframe to the first network device by using the information bearer in the DCI in the PDCCH common search interval transmitted in the first N OFDM symbols of the first subframe;
或者, Or,
将第一子帧的子帧结构信息用第一子帧的前 N个 OFDM符号内 传输的 PDCCH公共搜索区间内的 DCI的扰码信息或者其 CRC的扰 码信息承载发送给第一网络设备。 The subframe structure information of the first subframe is transmitted to the first network device by using the scrambling code information of the DCI in the PDCCH common search interval transmitted in the first N OFDM symbols of the first subframe or the scrambling information of the CRC.
进一步的, 所述发送单元 401具体可以用于, Further, the sending unit 401 may be specifically configured to:
将第一子帧的子帧结构信息用第一子帧的前一个子帧的最后一 个符号的信息承载发送给第一网络设备。 The subframe structure information of the first subframe is transmitted to the first network device by using the information bearer of the last symbol of the previous subframe of the first subframe.
进一步的, 所述发送单元 401具体可以用于, Further, the sending unit 401 may be specifically configured to:
将第一子帧的子帧结构信息用第一子帧的 PSS的信道或 SS S的
信道或类似 PSS的信道或 S SS的信道承载发送给第一网络设备, 其 中, 所述类似 PS S的信道是与所述 PS S信道结构相似但传输资源位 置不同的信道, 类似 S SS信道是与 SS S信道结构相似但传输资源位 置不同的信道。 Subframe structure information of the first subframe is used for the channel of the PSS of the first subframe or SS S A channel or a PSS-like channel or a channel bearer of the S SS is transmitted to the first network device, where the PS S-like channel is a channel similar to the PS S channel structure but different in transmission resource location, similar to the S SS channel A channel that is similar in structure to the SS S channel but has different transmission resource locations.
进一步的, 所述发送单元 401具体可以用于, Further, the sending unit 401 may be specifically configured to:
将第一子帧的子帧结构信息用第一子帧的导频信息承载发送给 第一网络设备; 其中, 导频信息包括下述导频中的一种或多种: Transmitting the subframe structure information of the first subframe to the first network device by using the pilot information of the first subframe; where the pilot information includes one or more of the following pilots:
CRS , CSI-RS , DMRS。 CRS, CSI-RS, DMRS.
可选的, 所述发送单元 401具体可以用于, Optionally, the sending unit 401 is specifically configured to:
将第一子帧的子帧结构信息用第一子帧的导频信 , 的扰码信 , 或扩频码信息承载发送给第一网络设备; Transmitting the subframe structure information of the first subframe to the first network device by using the pilot signal of the first subframe, the scrambling code, or the spreading code information bearer;
或者, Or,
将第一子帧的子帧结构信息用第一子帧的至少两个 OFDM符号 的导频信息承载发送给第一网络设备。 The subframe structure information of the first subframe is transmitted to the first network device by using pilot information of at least two OFDM symbols of the first subframe.
本发明实施例提供一种第二网络设备 40 , 通过将第一子帧的子 帧结构信息发送给第一网络设备, 以使得第一网络设备获取第一子 帧的子帧结构信息; 其中, 第一子帧的子帧结构信息是需要配置的 第一子帧的子帧结构的特征描述。 实现动态获取、 配置子帧结构, 使得子帧结构更适应于当前的信道传播特性, 从而使通信系统性能提升, 解决了现有技术中使用固定的子帧结构, 子帧结构与当前的信道传播 特性适应度低, 从而使得通信系统性能降低的缺陷。 The embodiment of the present invention provides a second network device 40, by sending the subframe structure information of the first subframe to the first network device, so that the first network device acquires the subframe structure information of the first subframe. The subframe structure information of the first subframe is a feature description of the subframe structure of the first subframe to be configured. The dynamic acquisition and configuration of the subframe structure are implemented, so that the subframe structure is more adapted to the current channel propagation characteristics, thereby improving the performance of the communication system, and solving the fixed subframe structure used in the prior art, the subframe structure and the current channel propagation. The characteristic is low in adaptability, which leads to a defect in the performance of the communication system.
实施例五 Embodiment 5
本发明实施例五提供一种第一网络设备 30 , 参见图 5 , 该第一 网络设备 30可以包括: The fifth embodiment of the present invention provides a first network device 30. Referring to FIG. 5, the first network device 30 may include:
至少一个处理器 501 , 存储器 502 , 至少一个通信总线 503 , 用 于实现这些装置之间的连接和相互通信, 接收器 504 ; At least one processor 501, a memory 502, at least one communication bus 503 for enabling connection and mutual communication between the devices, the receiver 504;
其中,通信总线 503可以是工业标准体系结构( Industry Standard Architecture , 简 称为 ISA ) 总线、 外部设备互连 ( Peripheral Component , 简称为 PCI ) 总线或扩展工业标准体系结构 ( Extended
Industry Standard Architecture , 简称为 EISA ) 总线等。 该总线 503 可以分为地址总线、 数据总线、 控制总线等。 为便于表示, 图 5 中 仅用一条粗线表示, 但并不表示仅有一根总线或一种类型的总线。 The communication bus 503 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an extended industry standard architecture ( Extended). Industry Standard Architecture, referred to as EISA) bus. The bus 503 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 5, but it does not mean that there is only one bus or one type of bus.
存储器 502 可以包括只读存储器和随机存取存储器, 并向处理 器 501 提供指令和数据。 存储器 502 的一部分还可以包括非易失行 随机存取存储器 ( NVRAM )。 Memory 502 can include read only memory and random access memory and provides instructions and data to processor 501. A portion of memory 502 may also include non-volatile line random access memory (NVRAM).
处理器 501可能是一个中央处理器 ( Central Processing Unit , 简称为 CPU ) , 或者是特定集成电路( Application Specific Integrated Circuit , 简称为 ASIC ) , 或者是被配置成实施本发明实施例的一个 或多个集成电路。 The processor 501 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more configured to implement the embodiments of the present invention. integrated circuit.
其中, 处理器 501可以用于获取第一子帧的子帧结构信息; 处理器 501 还可以用于根据第一子帧的子帧结构信息的指示获 取第一子帧的子帧结构; 其中, 第一子帧的子帧结构信息是第一子 帧的子帧结构的特征描述。 The processor 501 may be configured to acquire the subframe structure information of the first subframe. The processor 501 may be further configured to acquire the subframe structure of the first subframe according to the indication of the subframe structure information of the first subframe, where The subframe structure information of the first subframe is a feature description of the subframe structure of the first subframe.
具体的, 子帧结构信息包括下述信息中的一种或多种: 子帧包 含的 OFDM符号的个数、每一个 OFDM的符号的长度、每一个 OFDM 符号的 CP 的长度、 保护时间间隔的长度、 DwPTS 的长度、 UPPTS 的长度。 Specifically, the subframe structure information includes one or more of the following information: the number of OFDM symbols included in the subframe, the length of the symbol of each OFDM, the length of the CP of each OFDM symbol, and the guard time interval. Length, length of DwPTS, length of UPPTS.
进一步的, 子帧结构信息以第一网络设备特定的信令形式发送 给所述第一网络设备; Further, the subframe structure information is sent to the first network device in a signaling manner specific to the first network device;
或者, Or,
所述子帧结构信息以组播形式发送给第一网络设备组, 其中, 所述第一网络设备组包含 Q个第一网络设备, 其中, 所述 Q大于等 于 2。 The subframe structure information is sent to the first network device group in a multicast manner, where the first network device group includes Q first network devices, where the Q is greater than or equal to 2.
进一步的, 处理器 501具体可以用于, Further, the processor 501 can be specifically configured to:
检测第一子帧的前 N个 OFDM符号的信息获取第一子帧的子帧 结构信息, 其中, N为大于等于 1 的正整数。 Detecting information of the first N OFDM symbols of the first subframe to obtain subframe structure information of the first subframe, where N is a positive integer greater than or equal to 1.
可选的, 处理器 501具体可以用于, Optionally, the processor 501 is specifically configured to:
检测第一子帧的前 N个 OFDM符号内传输的 PCFICH获取第一
子帧的子帧结构信息; Detecting that the PCFICH transmitted in the first N OFDM symbols of the first subframe acquires the first Subframe structure information of the subframe;
或者, Or,
检测第一子帧的前 N个 OFDM符号内传输的类似 PCFICH的信 道获取第一子帧的子帧结构信息, 其中, 类似 PCFICH 的信道是与 PCIFCH结构相似但传输资源位置不同的信道; Detecting a PCFICH-like channel transmitted in the first N OFDM symbols of the first subframe to obtain subframe structure information of the first subframe, where the PCFICH-like channel is a channel similar to the PCIFCH structure but different in transmission resource location;
或者, Or,
检测第一子帧的前 N 个 OFDM 符号内传输的 PHICH 或类似 PHICH的信道获取第一子帧的子帧结构信息, 其中, 类似 PHICH的 信道是与 PHICH结构相似传输的资源位置不同的信道; Detecting a PHICH or a PHICH-like channel transmitted in the first N OFDM symbols of the first subframe to obtain subframe structure information of the first subframe, where the PHICH-like channel is a channel with a different resource location than the PHICH structure.
或者, Or,
检测第一子帧的前 N个 OFDM符号内传输的 PDCCH获取所述 第一子帧的子帧结构信息。 Detecting a PDCCH transmitted in the first N OFDM symbols of the first subframe to acquire subframe structure information of the first subframe.
进一步的, 接收器 504用于接收第二网络设备发送的高层信令, 其中, 高层信令包含第一指示信息, 用于指示第一子帧为固定配置 子帧或可变配置子帧; Further, the receiver 504 is configured to receive the high layer signaling sent by the second network device, where the high layer signaling includes the first indication information, where the first subframe is used to indicate that the first subframe is a fixed configuration subframe or a variable configuration subframe.
相应的, 处理器 501具体可以用于, Correspondingly, the processor 501 can be specifically used,
若根据接收器 504 接收的第一指示信息判断所述第一子帧为固 定配置子帧, 第一网络设备检测第一子帧的前 N个 OFDM符号内传 输的 PCFICH , 将 PCFICH解析为 PDCCH 占用的符号数; If the first subframe is determined to be a fixed configuration subframe according to the first indication information received by the receiver 504, the first network device detects the PCFICH transmitted in the first N OFDM symbols of the first subframe, and parses the PCFICH into the PDCCH occupation. Number of symbols;
若根据接收器 504 接收的第一指示信息判断所述第一子帧为可 变配置子帧, 第一网络设备检测第一子帧的前 N个 OFDM符号内传 输的 PCFICH ,将 PCFICH解析为第一子帧的子帧结构信息, PCFICH 指示的 PDCCH 占用的符号数固定。 If the first subframe is determined to be a variable configuration subframe according to the first indication information received by the receiver 504, the first network device detects the PCFICH transmitted in the first N OFDM symbols of the first subframe, and parses the PCFICH into the first subframe. The subframe structure information of one subframe, and the number of symbols occupied by the PDCCH indicated by the PCFICH is fixed.
示例性的, 处理器 501具体可以用于, Exemplarily, the processor 501 can be specifically used,
检测第一子帧的前 N个 OFDM符号内传输的 PDCCH公共搜索 区间内的 DCI内的信息获取第一子帧的子帧结构信息; Detecting information in the DCI in the PDCCH common search interval transmitted in the first N OFDM symbols of the first subframe to obtain subframe structure information of the first subframe;
或者, Or,
检测第一子帧的前 N个符号内传输的 PDCCH公共搜索区间内 的 DCI的扰码信息或者其 CRC的扰码信息获取第一子帧的子帧结构
信息。 Detecting the scrambling code information of the DCI in the PDCCH common search interval transmitted in the first N symbols of the first subframe or the scrambling code information of the CRC to obtain the subframe structure of the first subframe Information.
进一步的, 所述处理器 501具体可以用于, Further, the processor 501 may be specifically configured to:
检测第一子帧的前一个子帧的最后一个 OFDM符号的信息获取 第一子帧的子帧结构信息。 The information of the last OFDM symbol of the previous subframe of the first subframe is detected to obtain the subframe structure information of the first subframe.
进一步的, 所述处理器 501具体可以用于, Further, the processor 501 may be specifically configured to:
检测第一子帧的 PSS的信道或 SSS的信道或类似 PSS的信道或 SSS 的信道通过相关检测获取第一子帧的子帧结构信息, 其中, 所 述类似 PSS的信道是与所述 PSS信道结构相似但传输资源位置不同 的信道, 类似 SSS信道是与 SSS信道结构相似但传输资源位置不同 的信道。 Detecting a channel of a PSS of a first subframe or a channel of a SSS or a channel of a PSS-like channel or an SSS, acquiring subframe structure information of a first subframe by correlation detection, where the PSS-like channel is associated with the PSS channel Channels that are similar in structure but have different transmission resource locations, similar to SSS channels, are channels that are similar in structure to the SSS channel but have different transmission resource locations.
进一步的, 所述处理器 501具体可以用于, Further, the processor 501 may be specifically configured to:
检测第一子帧的导频信息获取第一子帧的子帧结构信息; 其中, 导频信息可以包括下述导频中的一种或多种: CRS, CSI-RS, DMRS。 Detecting pilot information of the first subframe to obtain subframe structure information of the first subframe; where, the pilot information may include one or more of the following pilots: CRS, CSI-RS, DMRS.
可选的, 所述处理器 501具体可以用于, Optionally, the processor 501 is specifically configured to:
检测第一子帧的导频信, I,的扰码信息或扩频码信息获取第一子 帧的子帧结构信息; Detecting the pilot information of the first subframe, the scrambling code information of the I, or the spreading code information to obtain the subframe structure information of the first subframe;
或者, Or,
检测第一子帧的至少两个 OFDM符号的导频信息通过相关检测 获取第一子帧的子帧结构信息。 The pilot information of the at least two OFDM symbols of the first subframe is detected to obtain the subframe structure information of the first subframe by correlation detection.
进一步的, 所述处理器 501具体可以用于, Further, the processor 501 may be specifically configured to:
检测第一子帧的 rank信息获取第一子帧的子帧结构信息,其中, 不同的 rank信息可以对应不同的子帧结构; Detecting the rank information of the first subframe to obtain the subframe structure information of the first subframe, where different rank information may correspond to different subframe structures;
或者, Or,
检测第一子帧的 RSRP 信息获取第一子帧的结构信息, 其中, 不同的 RSRP信息所在的区间可以对应不同的子帧结构。 The RSRP information of the first subframe is detected to obtain the structure information of the first subframe, where the interval in which the different RSRP information is located may correspond to different subframe structures.
本发明实施例提供一种第一网络设备 30, 通过第一网络设备获 取第一子帧的子帧结构信息; 根据第一子帧的子帧结构信息的指示 获取第一子帧的子帧结构。 实现动态获取、 配置子帧结构, 使得子帧
结构更适应于当前的信道传播特性, 从而使通信系统性能提升, 解决了 现有技术中使用固定的子帧结构, 子帧结构与当前的信道传播特性适 应度低, 从而使得通信系统性能降低的缺陷。 The embodiment of the present invention provides a first network device 30, which acquires subframe structure information of a first subframe by using a first network device, and acquires a subframe structure of the first subframe according to the indication of subframe structure information of the first subframe. . Implement dynamic acquisition, configure sub-frame structure, and make sub-frames The structure is more suitable for the current channel propagation characteristics, thereby improving the performance of the communication system, and solves the problem that the fixed subframe structure is used in the prior art, and the sub-frame structure has low adaptability to the current channel propagation characteristics, thereby degrading the performance of the communication system. defect.
实施例六 Embodiment 6
本发明实施例四提供一种第二网络设备 40 , 参见图 6 , 该第二 网络设备 40可以包括: The fourth embodiment of the present invention provides a second network device 40. Referring to FIG. 6, the second network device 40 may include:
至少一个处理器 601 , 存储器 602 , 至少一个通信总线 603 , 用 于实现这些装置之间的连接和相互通信, 发送器 604 ; At least one processor 601, a memory 602, at least one communication bus 603, for implementing connection and mutual communication between the devices, the transmitter 604;
其中,通信总线 603 可以是工业标准体系结构( Industry Standard Architecture , 简 称为 ISA ) 总线、 外部设备互连 ( Peripheral Component , 简称为 PCI ) 总线或扩展工业标准体系结构 ( Extended Industry Standard Architecture , 简称为 EISA ) 总线等。 该总线 603 可以分为地址总线、 数据总线、 控制总线等。 为便于表示, 图 6 中 仅用一条粗线表示, 但并不表示仅有一根总线或一种类型的总线。 The communication bus 603 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an Extended Industry Standard Architecture (EISA). ) Bus, etc. The bus 603 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 6, but it does not mean that there is only one bus or one type of bus.
存储器 602 可以包括只读存储器和随机存取存储器, 并向处理 器 601 提供指令和数据。 存储器 602 的一部分还可以包括非易失行 随机存取存储器 ( NVRAM )。 Memory 602 can include read only memory and random access memory and provides instructions and data to processor 601. A portion of memory 602 may also include non-volatile line random access memory (NVRAM).
处理器 601可能是一个中央处理器 ( Central Processing Unit , 简称为 CPU ) , 或者是特定集成电路( Application Specific Integrated Circuit , 简称为 ASIC ) , 或者是被配置成实施本发明实施例的一个 或多个集成电路。 The processor 601 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more configured to implement the embodiments of the present invention. integrated circuit.
其中, 发送器 604 可以用于将第一子帧的子帧结构信息发送给 第一网络设备, 以使得第一网络设备获取第一子帧的子帧结构信息; 其中, 第一子帧的子帧结构信息是需要配置的第一子帧的子帧结构 的特征描述。 The transmitter 604 may be configured to send the subframe structure information of the first subframe to the first network device, so that the first network device acquires subframe structure information of the first subframe, where the child of the first subframe The frame structure information is a feature description of the subframe structure of the first subframe to be configured.
可选的, 子帧结构信息可以包括下述信息中的一种或多种: 子 帧包含的 OFDM符号的个数、 每一个 OFDM的符号的长度、 每一个 OFDM符号的 CP 的长度、 保护时间间隔的长度、 DwPTS 的长度、 UPPTS的长度。
进一步的, 子帧结构信息以第一网络设备特定的信令形式发送 给所述第一网络设备; Optionally, the subframe structure information may include one or more of the following information: the number of OFDM symbols included in the subframe, the length of the symbol of each OFDM, the length of the CP of each OFDM symbol, and the guard time. The length of the interval, the length of the DwPTS, and the length of the UPPTS. Further, the subframe structure information is sent to the first network device in a signaling manner specific to the first network device;
或者, Or,
所述子帧结构信息以组播形式发送给第一网络设备组, 其中, 所述第一网络设备组包含 Q个第一网络设备, 其中, 所述 Q大于等 于 2。 The subframe structure information is sent to the first network device group in a multicast manner, where the first network device group includes Q first network devices, where the Q is greater than or equal to 2.
进一步的, 所述处理器 601具体可以用于, Further, the processor 601 may be specifically configured to:
将第一子帧的子帧结构信息用第一子帧的前 N个 OFDM符号的 信息承载, 其中, N为大于等于 1 的正整数。 The subframe structure information of the first subframe is carried by the information of the first N OFDM symbols of the first subframe, where N is a positive integer greater than or equal to 1.
可选的, 所述处理器 601具体可以用于, Optionally, the processor 601 is specifically configured to:
将第一子帧的子帧结构信息用第一子帧的前 N个 OFDM符号内 传输的 PCFICH承载; Submesh structure information of the first subframe is carried by a PCFICH transmitted in the first N OFDM symbols of the first subframe;
或者, Or,
将第一子帧的子帧结构信息用第一子帧的前 N个 OFDM符号内 传输的类似 PCFICH 的信道承载, 其中, 类似 PCFICH 的信道是与 PCIFCH结构相似但传输资源位置不同的信道; The subframe structure information of the first subframe is carried by a PCFICH-like channel transmitted in the first N OFDM symbols of the first subframe, where the channel similar to the PCFICH is a channel similar to the PCIFCH structure but having different transmission resource positions;
或者, Or,
将第一子帧的子帧结构信息用第一子帧的前 N个 OFDM符号内 传输的 PHICH或类似 PHICH的信道承载, 其中, 类似 PHICH的信 道是与 PHICH结构相似传输的资源位置不同的信道; The subframe structure information of the first subframe is carried by a PHICH or a PHICH-like channel transmitted in the first N OFDM symbols of the first subframe, where the PHICH-like channel is a channel with a different resource location than the PHICH structure. ;
或者, Or,
将第一子帧的子帧结构信息用第一子帧的前 N个 OFDM符号内 传输的 PDCCH承载。 The subframe structure information of the first subframe is carried by the PDCCH transmitted in the first N OFDM symbols of the first subframe.
进一步的, 发送器 604还可以用于, Further, the transmitter 604 can also be used,
向第一网络设备发送高层信令, 其中, 高层信令包含第一指示 信息, 用于指示所述第一子帧为固定配置子帧或可变配置子帧; 相应的, 所述处理器 601具体用于, Sending the high layer signaling to the first network device, where the high layer signaling includes the first indication information, where the first subframe is used to indicate that the first subframe is a fixed configuration subframe or a variable configuration subframe; correspondingly, the processor 601 Specifically used,
若第一子帧为固定配置子帧,则 PCFICH用来指示 PDCCH所占 的符号;
若第一子帧为可变配置子帧, 将第一子帧的子帧结构信息用第 一子帧的前 N个 OFDM符号内传输的 PCFICH承载。 If the first subframe is a fixed configuration subframe, the PCFICH is used to indicate a symbol occupied by the PDCCH; If the first subframe is a variable configuration subframe, the subframe structure information of the first subframe is carried by the PCFICH transmitted in the first N OFDM symbols of the first subframe.
可选的, 所述处理器 601具体可以用于, Optionally, the processor 601 is specifically configured to:
将第一子帧的子帧结构信息用第一子帧的前 N个 OFDM符号内 传输的 PDCCH公共搜索区间内的 DCI 内的信息承载; The subframe structure information of the first subframe is carried by the information in the DCI in the PDCCH common search interval transmitted in the first N OFDM symbols of the first subframe;
或者, Or,
将第一子帧的子帧结构信息用第一子帧的前 N个 OFDM符号内 传输的 PDCCH公共搜索区间内的 DCI的扰码信息或者其 CRC的扰 码信息承载。 The subframe structure information of the first subframe is carried by the scrambling code information of the DCI in the PDCCH common search interval transmitted in the first N OFDM symbols of the first subframe or the scrambling information of the CRC.
进一步的, 所述处理器 601具体可以用于, Further, the processor 601 may be specifically configured to:
将第一子帧的子帧结构信息用第一子帧的前一个子帧的最后一 个符号的信息承载。 The subframe structure information of the first subframe is carried by the information of the last symbol of the previous subframe of the first subframe.
进一步的, 所述处理器 601具体可以用于, Further, the processor 601 may be specifically configured to:
将第一子帧的子帧结构信息用第一子帧的 PSS的信道或 SSS的 信道或类似 PSS的信道或 SSS的信道承载, 其中, 类似 PSS的信道 是与 PSS信道结构相似但传输资源位置不同的信道, 类似 SSS信道 是与 SSS信道结构相似但传输资源位置不同的信道。 The subframe structure information of the first subframe is carried by the channel of the PSS of the first subframe or the channel of the SSS or the channel of the PSS or the channel of the SSS, wherein the channel similar to the PSS is similar to the PSS channel structure but the transmission resource location Different channels, like SSS channels, are channels that are similar in structure to the SSS channel but have different transmission resource locations.
进一步的, 所述处理器 601具体可以用于, Further, the processor 601 may be specifically configured to:
将第一子帧的子帧结构信息用第一子帧的导频信息承载; 其中, 导频信息包括下述导频中的一种或多种: CRS, CSI-RS, DMRS„ 可选的, 所述处理器 601具体可以用于, The subframe structure information of the first subframe is carried by the pilot information of the first subframe; wherein, the pilot information includes one or more of the following pilots: CRS, CSI-RS, DMRS „ optional The processor 601 may be specifically configured to:
将第一子帧的子帧结构信息用第一子帧的导频信 , 的扰码信 , 或扩频码信息承载; The subframe structure information of the first subframe is carried by the pilot signal of the first subframe, the scrambling code, or the spreading code information;
或者, Or,
将第一子帧的子帧结构信息用第一子帧的至少两个 OFDM符号 的导频信息承载。 The subframe structure information of the first subframe is carried with pilot information of at least two OFDM symbols of the first subframe.
本发明实施例提供一种第二网络设备 40, 通过将第一子帧的子 帧结构信息发送给第一网络设备, 以使得第一网络设备获取第一子 帧的子帧结构信息; 其中, 第一子帧的子帧结构信息是需要配置的
第一子帧的子帧结构的特征描述。 实现动态获取、 配置子帧结构, 使得子帧结构更适应于当前的信道传播特性, 从而使通信系统性能提升, 解决了现有技术中使用固定的子帧结构, 子帧结构与当前的信道传播 特性适应度低, 从而使得通信系统性能降低的缺陷。 The embodiment of the present invention provides a second network device 40, by sending the subframe structure information of the first subframe to the first network device, so that the first network device acquires the subframe structure information of the first subframe. The subframe structure information of the first subframe is required to be configured. A characterization of the subframe structure of the first subframe. The dynamic acquisition and configuration of the subframe structure are implemented, so that the subframe structure is more adapted to the current channel propagation characteristics, thereby improving the performance of the communication system, and solving the fixed subframe structure used in the prior art, the subframe structure and the current channel propagation. The characteristic is low in adaptability, which leads to a defect in the performance of the communication system.
所属领域的技术人员可以清楚地了解到, 为描述的方便和简洁, 上述描述的系统, 装置和单元的具体工作过程, 可以参考前述方法 实施例中的对应过程, 在此不再赘述。 A person skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can be referred to the corresponding process in the foregoing method embodiment, and details are not described herein again.
在本申请所提供的几个实施例中, 应该理解到, 所揭露的系统, 装置和方法, 可以通过其它的方式实现。 例如, 以上所描述的装置 实施例仅仅是示意性的, 例如, 所述单元的划分, 仅仅为一种逻辑 功能划分, 实际实现时可以有另外的划分方式, 例如多个单元或组 件可以结合或者可以集成到另一个系统, 或一些特征可以忽略, 或 不执行。 另一点, 所显示或讨论的相互之间的耦合或直接耦合或通 信连接可以是通过一些接口, 装置或单元的间接耦合或通信连接, 可以是电性或其它的形式。 In the several embodiments provided by the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical or otherwise.
所述作为分离部件说明的单元可以是或者也可以不是物理上分 开的, 作为单元显示的部件可以是或者也可以不是物理单元, 即可 以位于一个地方, 或者也可以分布到多个网络单元上。 可以根据实 际的需要选择其中的部分或者全部单元来实现本实施例方案的 目 的。 The units described as separate components may or may not be physically separated, and the components displayed as the units may or may not be physical units, and may be located in one place or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiment of the present embodiment.
另外, 在本发明各个实施例中的各功能单元可以集成在一个处 理单元中, 也可以是各个单元单独物理包括, 也可以两个或两个以 上单元集成在一个单元中。 上述集成的单元既可以釆用硬件的形式 实现, 也可以釆用硬件加软件功能单元的形式实现。 In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
上述以软件功能单元的形式实现的集成的单元, 可以存储在一 个计算机可读取存储介质中。 上述软件功能单元存储在一个存储介 质中, 包括若干指令用以使得一台计算机设备(可以是个人计算机, 服务器, 或者网络设备等) 执行本发明各个实施例所述方法的部分 步骤。 而前述的存储介质包括: U 盘、 移动硬盘、 只读存储器
( Read-Only Memory ,简称 ROM )、随机存取存储器( Random Access Memory , 简称 RAM )、 磁碟或者光盘等各种可以存储程序代码的介 质。 The above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium. The software functional units described above are stored in a storage medium and include instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform portions of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read only memory (Read-Only Memory, ROM for short), Random Access Memory (RAM), disk or optical disk, and other media that can store program code.
最后应说明的是: 以上实施例仅用以说明本发明的技术方案, 而非对其限制; 尽管参照前述实施例对本发明进行了详细的说明, 本领域的普通技术人员应当理解: 其依然可以对前述各实施例所记 载的技术方案进行修改, 或者对其中部分技术特征进行等同替换; 而这些修改或者替换, 并不使相应技术方案的本质脱离本发明各实 施例技术方案的精神和范围。
It should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1、 一种获取子帧结构的方法, 其特征在于, 包括: 1. A method for obtaining a subframe structure, characterized by including:
第一网络设备获取第一子帧的子帧结构信息; The first network device obtains subframe structure information of the first subframe;
根据所述第一子帧的子帧结构信息的指示获取所述第一子帧的 子帧结构; 其中, 所述第一子帧的子帧结构信息是所述第一子帧的子 帧结构的特征描述。 Obtaining the subframe structure of the first subframe according to the indication of the subframe structure information of the first subframe; wherein, the subframe structure information of the first subframe is the subframe structure of the first subframe description of characteristics.
2、 根据权利要求 1 所述的获取子帧结构的方法, 其特征在于, 所述子帧结构信息包括下述信息中的一种或多种: 子帧包含的正交频 分复用 OFDM符号的个数、 每一个所述 OFDM的符号的长度、 每一 个所述 OFDM符号的循环前缀 CP的长度、 保护时间间隔的长度、 下 行导频时隙 DwPTS的长度、 上行导频时隙 UPPTS的长度。 2. The method for obtaining a subframe structure according to claim 1, characterized in that the subframe structure information includes one or more of the following information: Orthogonal frequency division multiplexing OFDM symbols contained in the subframe number, the length of each OFDM symbol, the length of the cyclic prefix CP of each OFDM symbol, the length of the guard time interval, the length of the downlink pilot time slot DwPTS, the length of the uplink pilot time slot UPPTS .
3、 根据权利要求 1 或 2所述的获取子帧结构的方法, 其特征在 于, 3. The method for obtaining the subframe structure according to claim 1 or 2, characterized in that,
所述子帧结构信息以第一网络设备特定的信令形式发送给所述 第一网络设备; The subframe structure information is sent to the first network device in a signaling form specific to the first network device;
或者, or,
所述子帧结构信息以组播形式发送给第一网络设备组, 其中, 所 述第一网络设备组包含 Q个第一网络设备,其中,所述 Q大于等于 2。 The subframe structure information is sent to a first network device group in a multicast form, where the first network device group includes Q first network devices, where Q is greater than or equal to 2.
4、 根据权利要求 1 所述的获取子帧结构的方法, 其特征在于, 所述第一网络设备获取所述第一子帧的子帧结构信息包括, 4. The method of obtaining a subframe structure according to claim 1, characterized in that, the first network device obtaining the subframe structure information of the first subframe includes:
所述第一网络设备检测所述第一子帧的前 N个 OFDM符号的信 息获取所述第一子帧的子帧结构信息, 其中, 所述 N 为大于等于 1 的正整数。 The first network device detects the information of the first N OFDM symbols of the first subframe to obtain the subframe structure information of the first subframe, where N is a positive integer greater than or equal to 1.
5、 根据权利要求 4 所述的获取子帧结构的方法, 其特征在于, 所述第一网络设备检测所述第一子帧的前 N个 OFDM符号的信息获 取所述第一子帧的子帧结构信息包括, 5. The method for obtaining a subframe structure according to claim 4, wherein the first network device detects the information of the first N OFDM symbols of the first subframe to obtain the subframe structure of the first subframe. Frame structure information includes,
所述第一网络设备检测所述第一子帧的前 N个 OFDM符号内传 输的物理控制格式指示信道 PCFICH获取所述第一子帧的子帧结构信 息;
或者, The first network device detects the physical control format indication channel PCFICH transmitted within the first N OFDM symbols of the first subframe to obtain the subframe structure information of the first subframe; or,
所述第一网络设备检测所述第一子帧的前 N个 OFDM符号内传 输的类似 PCFICH的信道获取所述第一子帧的子帧结构信息, 其中, 所述类似 PCFICH的信道是与所述 PCIFCH结构相似但传输资源位置 不同的信道; The first network device detects a PCFICH-like channel transmitted within the first N OFDM symbols of the first subframe to obtain the subframe structure information of the first subframe, wherein the PCFICH-like channel is the same as the PCFICH-like channel. The above-mentioned channels with similar PCIFCH structures but different transmission resource locations;
或者, or,
所述第一网络设备检测所述第一子帧的前 N个 OFDM符号内传 输的物理混合自动重传指示信道 PHICH或类似 PHICH的信道获取所 述第一子帧的子帧结构信息, 其中, 所述类似 PHICH 的信道是与所 述 PHICH结构相似但传输的资源位置不同的信道; The first network device detects the physical hybrid automatic repeat indication channel PHICH or a PHICH-like channel transmitted within the first N OFDM symbols of the first subframe to obtain the subframe structure information of the first subframe, wherein, The PHICH-like channel is a channel with a similar structure to the PHICH but different transmission resource locations;
或者, or,
所述第一网络设备检测所述第一子帧的前 N个 OFDM符号内传 输的物理下行控制信道 P D C C H获取所述第一子帧的子帧结构信息。 The first network device detects the physical downlink control channel PDCCH transmitted within the first N OFDM symbols of the first subframe to obtain the subframe structure information of the first subframe.
6、 根据权利要求 5 所述的获取子帧结构的方法, 其特征在于, 所述方法还包括, 6. The method for obtaining the subframe structure according to claim 5, characterized in that the method further includes:
接收第二网络设备发送的高层信令, 其中, 所述高层信令包含第 一指示信息, 用于指示所述第一子帧为固定配置子帧或可变配置子 帧; Receive high-level signaling sent by the second network device, wherein the high-level signaling includes first indication information used to indicate that the first subframe is a fixed configuration subframe or a variable configuration subframe;
相应的, 所述第一网络设备检测所述第一子帧的前 N 个 OFDM 符号内传输的 PCFICH获取所述第一子帧的子帧结构信息, 包括, 若根据所述第一指示信息判断所述第一子帧为固定配置子帧, 所 述第一网络设备检测所述第一子帧的前 N 个 OFDM 符号内传输的 PCFICH , 将所述 PCFICH解析为所述 PDCCH 占用的符号数; Correspondingly, the first network device detects the PCFICH transmitted within the first N OFDM symbols of the first subframe to obtain the subframe structure information of the first subframe, including, if it is determined according to the first indication information The first subframe is a fixed configuration subframe, and the first network device detects the PCFICH transmitted within the first N OFDM symbols of the first subframe, and parses the PCFICH into the number of symbols occupied by the PDCCH;
若根据所述第一指示信息判断所述第一子帧为可变配置子帧, 所 述第一网络设备检测所述第一子帧的前 N 个 OFDM 符号内传输的 PCFICH , 将所述 PCFICH 解析为第一子帧的子帧结构信息, 所述 PCFICH指示的所述 PDCCH 占用的符号数固定。 If the first subframe is determined to be a variable configuration subframe according to the first indication information, the first network device detects the PCFICH transmitted within the first N OFDM symbols of the first subframe, and converts the PCFICH Parsed to the subframe structure information of the first subframe, the number of symbols occupied by the PDCCH indicated by the PCFICH is fixed.
7、 根据权利要求 5 所述的获取子帧结构的方法, 其特征在于, 所述第一网络设备检测所述第一子帧的前 N个 OFDM符号内传输的
PDCCH获取所述第一子帧的子帧结构信息包括, 7. The method for obtaining a subframe structure according to claim 5, characterized in that the first network device detects the first N OFDM symbols transmitted in the first subframe. The PDCCH obtains the subframe structure information of the first subframe including:
所述第一网络设备检测所述第一子帧的前 N个 OFDM符号内传 输的 PDCCH公共搜索区间内的下行控制信息 DCI内的信息获取所述 第一子帧的子帧结构信息; The first network device detects the downlink control information DCI in the PDCCH common search interval transmitted within the first N OFDM symbols of the first subframe to obtain the subframe structure information of the first subframe;
或者, or,
所述第一网络设备检测所述第一子帧的前 N 个符号内传输的 PDCCH公共搜索区间内的所述 DCI的扰码信息或者其循环冗余码校 验 CRC的扰码信息获取所述第一子帧的子帧结构信息。 The first network device detects the scrambling code information of the DCI in the PDCCH common search interval transmitted within the first N symbols of the first subframe or the scrambling code information of its cyclic redundancy code check CRC to obtain the Subframe structure information of the first subframe.
8、 根据权利要求 1 所述的获取子帧结构的方法, 其特征在于, 所述第一网络设备获取所述第一子帧的子帧结构信息包括, 8. The method of obtaining a subframe structure according to claim 1, wherein the first network device obtains the subframe structure information of the first subframe including:
所述第一网络设备检测所述第一子帧的前一个子帧的最后一个 0 F D M符号的信息获取所述第一子帧的子帧结构信息。 The first network device detects the information of the last 0 FDM symbol of the previous subframe of the first subframe to obtain the subframe structure information of the first subframe.
9、 根据权利要求 1 所述的获取子帧结构的方法, 其特征在于, 所述第一网络设备获取所述第一子帧的子帧结构信息包括, 9. The method for obtaining a subframe structure according to claim 1, wherein the first network device obtains the subframe structure information of the first subframe including:
所述第一网络设备检测所述第一子帧的主同步信号 PS S 的信道 或辅同步信号 S S S 的信道或类似 PS S 的信道或 S S S 的信道通过相关 检测获取所述第一子帧的子帧结构信息, 其中, 所述类似 PS S的信道 是与所述 PS S 信道结构相似但传输资源位置不同的信道, 所述类似 S S S信道是与所述 S S S信道结构相似但传输资源位置不同的信道。 The first network device detects the channel of the primary synchronization signal PS S or the channel of the secondary synchronization signal S S S or a channel similar to PS S or the channel of S S S of the first subframe, and obtains the subframe of the first subframe through correlation detection. Frame structure information, wherein the PSS-like channel is a channel with a similar structure to the PSS channel but different transmission resource locations, and the SSS-like channel is a channel with a similar structure to the SSS channel but different transmission resource locations. .
10、 根据权利要求 1所述的获取子帧结构的方法, 其特征在于, 所述第一网络设备获取所述第一子帧的子帧结构信息包括, 10. The method of obtaining a subframe structure according to claim 1, characterized in that, the first network device obtaining the subframe structure information of the first subframe includes:
所述第一网络设备检测所述第一子帧的导频信息获取所述第一 子帧的子帧结构信息; 其中, 所述导频信息包括下述导频中的一种或 多种: 小区专有导频 CRS , 信道状态信息测量导频 CSI-RS , 解调参 考信号 DMRS。 The first network device detects pilot information of the first subframe to obtain subframe structure information of the first subframe; wherein, the pilot information includes one or more of the following pilots: Cell-specific pilot CRS, channel state information measurement pilot CSI-RS, and demodulation reference signal DMRS.
1 1、 根据权利要求 10所述的获取子帧结构的方法, 其特征在于, 所述所述第一网络设备检测所述第一子帧的导频信息获取所述第一 子帧的子帧结构信息包括, 1 1. The method for obtaining a subframe structure according to claim 10, wherein the first network device detects the pilot information of the first subframe to obtain the subframe of the first subframe. Structural information includes,
所述第一网络设备检测所述第一子帧的所述导频信, I.的扰码信
息或扩频码信息获取第一子帧的子帧结构信息; The first network device detects the scrambling code signal of the pilot signal of the first subframe I. information or spreading code information to obtain the subframe structure information of the first subframe;
或者, or,
所述第一网络设备检测所述第一子帧的至少两个 OFDM 符号的 导频信息通过相关检测获取所述第一子帧的子帧结构信息。 The first network device detects pilot information of at least two OFDM symbols of the first subframe and obtains subframe structure information of the first subframe through correlation detection.
12、 根据权利要求 1所述的获取子帧结构的方法, 其特征在于, 所述第一网络设备获取所述第一子帧的子帧结构信息包括, 12. The method for obtaining a subframe structure according to claim 1, characterized in that, the first network device obtaining the subframe structure information of the first subframe includes:
所述第一网络设备检测所述第一子帧的 rank 信息获取所述第一 子帧的子帧结构信息, 其中, 不同的所述 rank 信息对应不同的子帧 结构; The first network device detects the rank information of the first subframe to obtain the subframe structure information of the first subframe, wherein different rank information corresponds to different subframe structures;
或者, or,
所述第 ―网络设备检测所述第一子帧的参考信号接收功率 RSRP 信息获取所述第一子帧的结构信息, 其中, 不同的所述 RSRP信息所 在的区间对应不同的子帧结构。 The first network device detects the reference signal received power RSRP information of the first subframe to obtain the structure information of the first subframe, wherein the intervals where different RSRP information is located correspond to different subframe structures.
13、 一种配置子帧结构的方法, 其特征在于, 包括: 13. A method for configuring a subframe structure, characterized by including:
将第一子帧的子帧结构信息发送给第 ―网络设备, 以使得所述第 一网络设备获取所述第一子帧的子帧结构信息; 其中, 所述第一子帧 的子帧结构信息是需要配置的所述第一子帧的子帧结构的特征描述。 Send the subframe structure information of the first subframe to the -th network device, so that the first network device obtains the subframe structure information of the first subframe; wherein, the subframe structure of the first subframe The information is a characteristic description of the subframe structure of the first subframe that needs to be configured.
14、 根据权利要求 13所述的配置子帧结构的方法, 其特征在于, 所述子帧结构信息包括下述信息中的一种或多种: 子帧包含的正交频 分复用 OFDM符号的个数、 每一个所述 OFDM的符号的长度、 每一 个所述 OFDM符号的循环前缀 CP的长度、 保护时间间隔的长度、 下 行导频时隙 DwPTS的长度、 上行导频时隙 UPPTS的长度。 14. The method of configuring a subframe structure according to claim 13, wherein the subframe structure information includes one or more of the following information: Orthogonal frequency division multiplexing OFDM symbols contained in the subframe number, the length of each OFDM symbol, the length of the cyclic prefix CP of each OFDM symbol, the length of the guard time interval, the length of the downlink pilot time slot DwPTS, the length of the uplink pilot time slot UPPTS .
15、 根据权利要求 13或 14所述的配置子帧结构的方法, 其特征 在于, 15. The method of configuring a subframe structure according to claim 13 or 14, characterized in that,
所述子帧结构信息以第一网络设备特定的信令形式发送给所述 第一网络设备; The subframe structure information is sent to the first network device in a signaling form specific to the first network device;
或者, or,
所述子帧结构信息以组播形式发送给第一网络设备组, 其中, 所 述第一网络设备组包含 Q个第一网络设备,其中,所述 Q大于等于 2。
The subframe structure information is sent to a first network device group in a multicast form, where the first network device group includes Q first network devices, where Q is greater than or equal to 2.
16、 根据权利要求 13所述的配置子帧结构的方法, 其特征在于, 所述将第一子帧的子帧结构信息发送给第一网络设备包括, 16. The method of configuring a subframe structure according to claim 13, wherein sending the subframe structure information of the first subframe to the first network device includes:
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号的信息承载发送给所述第一网络设备, 其中, N为大于等 于 1 的正整数。 The subframe structure information of the first subframe is sent to the first network device using the information of the first N OFDM symbols of the first subframe, where N is a positive integer greater than or equal to 1.
17、 根据权利要求 16所述的配置子帧结构的方法, 其特征在于, 所述将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 0 F D M符号承载发送给第一网络设备包括, 17. The method of configuring a subframe structure according to claim 16, wherein the subframe structure information of the first subframe is carried and sent by using the first N 0 FDM symbols of the first subframe. To the first network device include,
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号内传输的物理控制格式指示信道 PCFICH承载发送给所述 第一网络设备; Send the subframe structure information of the first subframe to the first network device using the physical control format indication channel PCFICH transmitted within the first N OFDM symbols of the first subframe;
或者, or,
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号内传输的类似 PCFICH的信道承载发送给所述第一网络设 备, 其中, 所述类似 PCFICH的信道是与所述 PCIFCH结构相似但传 输资源位置不同的信道; The subframe structure information of the first subframe is carried and sent to the first network device using a PCFICH-like channel transmitted within the first N OFDM symbols of the first subframe, wherein, the PCFICH-like channel It is a channel with a similar structure to the PCIFCH but different transmission resource locations;
或者, or,
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM 符号内传输的物理混合自动重传指示信道 PHICH 或类似 PHICH的信道承载发送给所述第一网络设备, 其中 , 所述类似 PHICH 的信道是与所述 PHICH结构相似传输的资源位置不同的信道; The subframe structure information of the first subframe is sent to the first network device using the physical hybrid automatic repeat indication channel PHICH or a PHICH-like channel transmitted within the first N OFDM symbols of the first subframe. , wherein, the PHICH-like channel is a channel with a different resource location than the PHICH structure similar to the transmission;
或者, or,
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号内传输的物理下行控制信道 PDCCH承载发送给所述第一 网络设备。 The subframe structure information of the first subframe is carried and sent to the first network device using the physical downlink control channel PDCCH transmitted within the first N OFDM symbols of the first subframe.
18、 根据权利要求 17所述的配置子帧结构的方法, 其特征在于, 所述方法还包括, 18. The method of configuring a subframe structure according to claim 17, characterized in that, the method further includes:
向第一网络设备发送高层信令, 其中, 所述高层信令包含第一指 示信息, 用于指示所述第一子帧为固定配置子帧或可变配置子帧;
相应的, 所述将所述第一子帧的子帧结构信息用所述第一子帧的 前 N个 OFDM符号内传输的物理控制格式指示信道 PCFICH承载发 送给所述第一网络设备, 包括, Send high-level signaling to the first network device, wherein the high-level signaling includes first indication information used to indicate that the first subframe is a fixed configuration subframe or a variable configuration subframe; Correspondingly, the subframe structure information of the first subframe is sent to the first network device using the physical control format indication channel PCFICH transmitted within the first N OFDM symbols of the first subframe, including ,
若所述第一子帧为固定配置子帧, 则所述 PCFICH用来指示所述 PDCCH所占的符号; If the first subframe is a fixed configuration subframe, the PCFICH is used to indicate the symbols occupied by the PDCCH;
若所述第一子帧为可变配置子帧, 则将所述第一子帧的子帧结构 信息用所述第一子帧的前 N个 OFDM符号内传输的 PCFICH承载发 送给所述第一网络设备。 If the first subframe is a variable configuration subframe, the subframe structure information of the first subframe is sent to the first subframe using the PCFICH bearer transmitted within the first N OFDM symbols of the first subframe. A network device.
19、 根据权利要求 17所述的配置子帧结构的方法, 其特征在于, 所述将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号内传输的 PDCCH承载发送给所述第一网络设备包括, 将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM 符号内传输的所述 PDCCH 公共搜索区间内的下行控制信息 DCI内的信息承载发送给所述第一网络设备; 19. The method for configuring a subframe structure according to claim 17, wherein the subframe structure information of the first subframe is transmitted within the first N OFDM symbols of the first subframe. Sending the PDCCH bearer to the first network device includes: using the subframe structure information of the first subframe to use downlink control in the PDCCH common search interval transmitted within the first N OFDM symbols of the first subframe. The information bearer in the information DCI is sent to the first network device;
或者, or,
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号内传输的所述 PDCCH公共搜索区间内的所述 DCI的扰码 信息或者其循环冗余码校验 CRC 的扰码信息承载发送给所述第一网 络设备。 The subframe structure information of the first subframe is corrected using the scrambling information of the DCI in the PDCCH common search interval transmitted in the first N OFDM symbols of the first subframe or its cyclic redundancy code. The scrambling code information bearing the CRC is sent to the first network device.
20、 根据权利要求 13所述的配置子帧结构的方法, 其特征在于, 所述将所述第一子帧的子帧结构信息发送给第一网络设备包括, 20. The method of configuring a subframe structure according to claim 13, wherein sending the subframe structure information of the first subframe to the first network device includes:
将所述第一子帧的子帧结构信息用述第一子帧的前一个子帧的 最后一个符号的信息承载发送给所述第一网络设备。 The subframe structure information of the first subframe is sent to the first network device using the information of the last symbol of the subframe preceding the first subframe.
21、 根据权利要求 13所述的配置子帧结构的方法, 其特征在于, 所述将所述第一子帧的子帧结构信息发送给第一网络设备包括, 21. The method of configuring a subframe structure according to claim 13, wherein sending the subframe structure information of the first subframe to the first network device includes:
将所述第一子帧的子帧结构信息用所述第一子帧的主同步信号 PS S 的信道或辅同步信号 S S S 的信道或类似 PS S 的信道或 S S S 的信 道承载发送给所述第一网络设备, 其中, 所述类似 PS S的信道是与所 述 PS S信道结构相似但传输资源位置不同的信道,所述类似 S SS信道
是与所述 s s s信道结构相似但传输资源位置不同的信道。 The subframe structure information of the first subframe is carried by the channel of the primary synchronization signal PS S or the channel of the secondary synchronization signal SSS or a channel similar to PS S or a channel of SSS of the first subframe and sent to the third subframe. A network device, wherein the PS S-like channel is a channel with a similar structure to the PS S channel but a different transmission resource location, and the S SS-like channel It is a channel with a similar structure to the SSS channel but different transmission resource locations.
22、 根据权利要求 13所述的配置子帧结构的方法, 其特征在于, 所述将第一子帧的子帧结构信息发送给第一网络设备包括, 22. The method of configuring a subframe structure according to claim 13, wherein sending the subframe structure information of the first subframe to the first network device includes:
将所述第一子帧的子帧结构信息用所述第一子帧的导频信息承 载发送给所述第一网络设备; 其中, 所述导频信息包括下述导频中的 一种或多种: 小区专有导频 CRS , 信道状态信息测量导频 CSI-RS , 解调参考信号 DMRS。 The subframe structure information of the first subframe is carried and sent to the first network device using pilot information of the first subframe; wherein, the pilot information includes one of the following pilots or Various: cell-specific pilot CRS, channel state information measurement pilot CSI-RS, demodulation reference signal DMRS.
23、 根据权利要求 22所述的配置子帧结构的方法, 其特征在于, 所述将所述第一子帧的子帧结构信息用所述第一子帧的导频信息承 载发送给所述第一网络设备包括, 23. The method of configuring a subframe structure according to claim 22, wherein: the subframe structure information of the first subframe is carried and sent to the first subframe using pilot information of the first subframe. The first network equipment includes,
将所述第一子帧的子帧结构信息用所述第一子帧的所述导频信 , ¾的扰码信息或扩频码信息承载发送给所述第一网络设备; The subframe structure information of the first subframe is carried and sent to the first network device using the scrambling code information or spreading code information of the pilot signal of the first subframe;
或者, or,
将所述第一子帧的子帧结构信息用所述第一子帧的至少两个 OFDM符号内的导频承载发送给第一网络设备。 The subframe structure information of the first subframe is sent to the first network device using pilot bearers within at least two OFDM symbols of the first subframe.
24、 一种第一网络设备, 其特征在于, 包括: 24. A first network device, characterized by: including:
获取单元, 用于获取所述第一子帧的子帧结构信息; An acquisition unit, configured to acquire the subframe structure information of the first subframe;
所述获取单元还用于, 根据所述所述第一子帧的子帧结构信息的 指示获取所述第一子帧的子帧结构; 其中, 所述第一子帧的子帧结构 信息是所述第一子帧的子帧结构的特征描述。 The obtaining unit is further configured to obtain the subframe structure of the first subframe according to the indication of the subframe structure information of the first subframe; wherein, the subframe structure information of the first subframe is Characteristic description of the subframe structure of the first subframe.
25、 根据权利要求 24 所述的第一网络设备, 其特征在于, 所述 子帧结构信息包括下述信息中的一种或多种: 子帧包含的正交频分复 用 OFDM符号的个数、 每一个所述 OFDM的符号的长度、 每一个所 述 OFDM符号的循环前缀 CP的长度、 保护时间间隔的长度、 下行导 频时隙 DwPTS的长度、 上行导频时隙 UPPTS的长度。 25. The first network device according to claim 24, wherein the subframe structure information includes one or more of the following information: Number of orthogonal frequency division multiplexing OFDM symbols contained in the subframe. number, the length of each OFDM symbol, the length of the cyclic prefix CP of each OFDM symbol, the length of the guard time interval, the length of the downlink pilot time slot DwPTS, and the length of the uplink pilot time slot UPPTS.
26、 根据权利要求 24或 25所述的第一网络设备, 其特征在于, 所述子帧结构信息以第一网络设备特定的信令形式发送给所述第一 网络设备; 26. The first network device according to claim 24 or 25, wherein the subframe structure information is sent to the first network device in a signaling form specific to the first network device;
或者,
所述子帧结构信息以组播形式发送给第一网络设备组, 其中, 所 述第一网络设备组包含 Q个第一网络设备,其中,所述 Q大于等于 2。 or, The subframe structure information is sent to a first network device group in a multicast form, where the first network device group includes Q first network devices, where Q is greater than or equal to 2.
27、 根据权利要求 24 所述的第一网络设备, 其特征在于, 所述 获取单元具体用于, 27. The first network device according to claim 24, characterized in that the acquisition unit is specifically used to,
检测所述第一子帧的前 N个 OFDM符号的信息获取所述第一子 帧的子帧结构信息, 其中, 所述 N为大于等于 1 的正整数。 Detect the information of the first N OFDM symbols of the first subframe to obtain the subframe structure information of the first subframe, where N is a positive integer greater than or equal to 1.
28、 根据权利要求 27 所述的第一网络设备, 其特征在于, 所述 获取单元具体用于, 28. The first network device according to claim 27, characterized in that the acquisition unit is specifically used to,
检测所述第一子帧的前 N个 OFDM符号内传输的物理控制格式 指示信道 PCFICH获取所述第一子帧的子帧结构信息; Detect the physical control format indication channel PCFICH transmitted within the first N OFDM symbols of the first subframe to obtain the subframe structure information of the first subframe;
或者, or,
检测所述第一子帧的前 N 个 OFDM符号内传输的类似 PCFICH 的信道获取所述第一子帧的子帧结构信息, 其中, 所述类似 PCFICH 的信道是与所述 PCIFCH结构相似但传输资源位置不同的信道; Detect the PCFICH-like channel transmitted within the first N OFDM symbols of the first subframe to obtain the subframe structure information of the first subframe, wherein the PCFICH-like channel is similar to the PCIFCH structure but transmits Channels with different resource locations;
或者, or,
检测所述第一子帧的前 N个 OFDM符号内传输的物理混合自动 重传指示信道 PHICH或类似 PHICH的信道获取所述第一子帧的子帧 结构信息, 其中, 所述类似 PHICH的信道是与所述 PHICH结构相似 传输的资源位置不同的信道; Detect the physical hybrid automatic repeat indication channel PHICH or a PHICH-like channel transmitted within the first N OFDM symbols of the first subframe to obtain the subframe structure information of the first subframe, wherein, the PHICH-like channel It is a channel with a similar transmission resource location and a different location than the PHICH structure;
或者, or,
检测所述第一子帧的前 N个 OFDM符号内传输的物理下行控制 信道 PDCCH获取所述第一子帧的子帧结构信息。 Detect the physical downlink control channel PDCCH transmitted within the first N OFDM symbols of the first subframe to obtain the subframe structure information of the first subframe.
29、 根据权利要求 28 所述的第一网络设备, 其特征在于, 所述 第一网络设备还包括, 29. The first network device according to claim 28, characterized in that, the first network device further includes:
接收单元, 用于接收第二网络设备发送的高层信令, 其中, 所述 高层信令包含第一指示信息, 用于指示所述第一子帧为固定配置子帧 或可变配置子帧; A receiving unit, configured to receive high-level signaling sent by the second network device, wherein the high-level signaling includes first indication information, used to indicate that the first subframe is a fixed configuration subframe or a variable configuration subframe;
相应的, 所述获取单元具体用于, Correspondingly, the acquisition unit is specifically used to,
若根据所述第一指示信息判断所述第一子帧为固定配置子帧, 所
述第一网络设备检测所述第一子帧的前 N 个 OFDM 符号内传输的 PCFICH , 将所述 PCFICH解析为所述 PDCCH 占用的符号数; If it is determined according to the first indication information that the first subframe is a fixed configuration subframe, The first network device detects the PCFICH transmitted within the first N OFDM symbols of the first subframe, and parses the PCFICH into the number of symbols occupied by the PDCCH;
若根据所述第一指示信息判断所述第一子帧为可变配置子帧, 所 述第一网络设备检测所述第一子帧的前 N 个 OFDM 符号内传输的 PCFICH , 将所述 PCFICH 解析为所述第一子帧的子帧结构信息, 所 述 PCFICH指示的所述 PDCCH 占用的符号数固定。 If the first subframe is determined to be a variable configuration subframe according to the first indication information, the first network device detects the PCFICH transmitted within the first N OFDM symbols of the first subframe, and converts the PCFICH Parsed to the subframe structure information of the first subframe, the number of symbols occupied by the PDCCH indicated by the PCFICH is fixed.
30、 根据权利要求 28 所述的第一网络设备, 其特征在于, 所述 获取单元具体用于, 30. The first network device according to claim 28, characterized in that the acquisition unit is specifically used to,
检测所述第一子帧的前 N个 OFDM符号内传输的 PDCCH公共搜 索区间内的下行控制信息 DCI 内的信息获取所述第一子帧的子帧结 构信息; Detect the information in the downlink control information DCI in the PDCCH common search interval transmitted within the first N OFDM symbols of the first subframe to obtain the subframe structure information of the first subframe;
或者, or,
检测所述第一子帧的前 N个符号内传输的 PDCCH公共搜索区间 内的所述 DCI的扰码信息或者其循环冗余码校验 CRC的扰码信息获 取所述第一子帧的子帧结构信息。 Detect the scrambling code information of the DCI in the PDCCH common search interval transmitted within the first N symbols of the first subframe or the scrambling code information of its cyclic redundancy code check CRC to obtain the subframe of the first subframe. Frame structure information.
3 1、 根据权利要求 24 所述的第一网络设备, 其特征在于, 所述 获取单元具体用于, 3 1. The first network device according to claim 24, characterized in that the acquisition unit is specifically used to,
检测所述第一子帧的前一个子帧的最后一个 OFDM 符号的信息 获取所述第一子帧的子帧结构信息。 Detect the information of the last OFDM symbol of the previous subframe of the first subframe and obtain the subframe structure information of the first subframe.
32、 根据权利要求 24 所述的第一网络设备, 其特征在于, 所述 获取单元具体用于, 32. The first network device according to claim 24, characterized in that the acquisition unit is specifically used to,
检测所述第一子帧的主同步信号 PSS 的信道或辅同步信号 S S S 的信道或类似 PS S的信道或 S S S的信道通过相关检测获取所述第一子 帧的子帧结构信息, 其中, 所述类似 PS S的信道是与所述 PS S信道结 构相似但传输资源位置不同的信道, 所述类似 S S S信道是与所述 S SS 信道结构相似但传输资源位置不同的信道。 Detecting the channel of the primary synchronization signal PSS or the channel of the secondary synchronization signal SSS or a channel similar to PSS or the channel of SSS of the first subframe and obtaining the subframe structure information of the first subframe through correlation detection, where, The PSS-like channel is a channel that has a similar structure to the PSS channel but has different transmission resource locations. The SSS-like channel is a channel that has a similar structure to the SSS channel but has different transmission resource locations.
33、 根据权利要求 24 所述的第一网络设备, 其特征在于, 所述 获取单元具体用于, 33. The first network device according to claim 24, characterized in that the acquisition unit is specifically used to,
检测所述第一子帧的导频信息获取所述第一子帧的子帧结构信
息; 其中, 所述导频信息包括下述导频中的一种或多种: 小区专有导 频 CRS , 信道状态信息测量导频 CSI-RS , 解调参考信号 DMRS。 Detect the pilot information of the first subframe to obtain the subframe structure information of the first subframe. information; wherein, the pilot information includes one or more of the following pilots: cell-specific pilot CRS, channel state information measurement pilot CSI-RS, and demodulation reference signal DMRS.
34、 根据权利要求 33 所述的第一网络设备, 其特征在于, 所述 获取单元具体用于, 34. The first network device according to claim 33, characterized in that the acquisition unit is specifically used to,
检测所述第一子帧的所述导频信 , 的扰码信息或扩频码信息获 取第一子帧的子帧结构信息; Detect the scrambling code information or spreading code information of the pilot signal of the first subframe to obtain the subframe structure information of the first subframe;
或者, or,
检测所述第一子帧的至少两个 OFDM 符号的导频信息通过相关 检测获取所述第一子帧的子帧结构信息。 Detect pilot information of at least two OFDM symbols of the first subframe and obtain subframe structure information of the first subframe through correlation detection.
35、 根据权利要求 24 所述的第一网络设备, 其特征在于, 所述 获取单元具体用于, 35. The first network device according to claim 24, characterized in that the acquisition unit is specifically used to,
检测所述第一子帧的 rank 信息获取所述第一子帧的子帧结构信 息, 其中, 不同的所述 rank信息对应不同的子帧结构; Detect the rank information of the first subframe to obtain the subframe structure information of the first subframe, where different rank information corresponds to different subframe structures;
或者, or,
检测所述第一子帧的参考信号接收功率 RSRP信息获取所述第一 子帧的结构信息, 其中, 不同的所述 RSRP信息所在的区间对应不同 的子帧结构。 Detect the reference signal received power RSRP information of the first subframe to obtain the structure information of the first subframe, wherein the intervals in which different RSRP information are located correspond to different subframe structures.
36、 一种第二网络设备, 其特征在于, 包括: 36. A second network device, characterized by: including:
发送单元, 用于将第一子帧的子帧结构信息发送给第一网络设 备, 以使得所述第 ―网络设备检测所述第一子帧获取所述第一子帧的 子帧结构信息; 其中, 所述第一子帧的子帧结构信息是需要配置的所 述第一子帧的子帧结构的特征描述。 A sending unit, configured to send the subframe structure information of the first subframe to the first network device, so that the first network device detects the first subframe and obtains the subframe structure information of the first subframe; Wherein, the subframe structure information of the first subframe is a feature description of the subframe structure of the first subframe that needs to be configured.
37、 根据权利要求 36 所述的第二网络设备, 其特征在于, 所述 子帧结构信息包括下述信息中的一种或多种: 子帧包含的正交频分复 用 OFDM符号的个数、 每一个所述 OFDM的符号的长度、 每一个所 述 OFDM符号的循环前缀 CP的长度、 保护时间间隔的长度、 下行导 频时隙 DwPTS的长度、 上行导频时隙 UPPTS的长度。 37. The second network device according to claim 36, wherein the subframe structure information includes one or more of the following information: Number of orthogonal frequency division multiplexing OFDM symbols contained in the subframe. number, the length of each OFDM symbol, the length of the cyclic prefix CP of each OFDM symbol, the length of the guard time interval, the length of the downlink pilot time slot DwPTS, and the length of the uplink pilot time slot UPPTS.
38、 根据权利要求 36或 37所述的第二网络设备, 其特征在于, 所述子帧结构信息以第一网络设备特定的信令形式发送给所述
第一网络设备; 38. The second network device according to claim 36 or 37, characterized in that the subframe structure information is sent to the first network device in a signaling form specific to the first network device. First network equipment;
或者, or,
所述子帧结构信息以组播形式发送给第一网络设备组, 其中, 所 述第一网络设备组包含 Q个第一网络设备,其中,所述 Q大于等于 2。 The subframe structure information is sent to a first network device group in a multicast form, where the first network device group includes Q first network devices, where Q is greater than or equal to 2.
39、 根据权利要求 36 所述的第二网络设备, 其特征在于, 所述 发送单元具体用于, 39. The second network device according to claim 36, characterized in that the sending unit is specifically used to,
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号的信息承载发送给第一网络设备, 其中, N为大于等于 1 的正整数。 The subframe structure information of the first subframe is carried and sent to the first network device using the information of the first N OFDM symbols of the first subframe, where N is a positive integer greater than or equal to 1.
40、 根据权利要求 39 所述的第二网络设备, 其特征在于, 所述 发送单元具体用于, 40. The second network device according to claim 39, characterized in that the sending unit is specifically used to:
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号内传输的物理控制格式指示信道 PCFICH承载发送给所述 第一网络设备; Send the subframe structure information of the first subframe to the first network device using the physical control format indication channel PCFICH transmitted within the first N OFDM symbols of the first subframe;
或者, or,
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号内传输的类似 PCFICH的信道承载发送给所述第一网络设 备, 其中, 所述类似 PCFICH的信道是与所述 PCIFCH结构相似但传 输资源位置不同的信道; The subframe structure information of the first subframe is carried and sent to the first network device using a PCFICH-like channel transmitted within the first N OFDM symbols of the first subframe, wherein, the PCFICH-like channel It is a channel with a similar structure to the PCIFCH but different transmission resource locations;
或者, or,
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM 符号内传输的物理混合自动重传指示信道 PHICH 或类似 PHICH的信道承载发送给所述第一网络设备, 其中 , 所述类似 PHICH 的信道是与所述 PHICH结构相似传输的资源位置不同的信道; The subframe structure information of the first subframe is sent to the first network device using the physical hybrid automatic repeat indication channel PHICH or a PHICH-like channel transmitted within the first N OFDM symbols of the first subframe. , wherein, the PHICH-like channel is a channel with a different resource location than the PHICH structure similar to the transmission;
或者, or,
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号内传输的物理下行控制信道 PDCCH承载发送给所述第一 网络设备。 The subframe structure information of the first subframe is carried and sent to the first network device using the physical downlink control channel PDCCH transmitted within the first N OFDM symbols of the first subframe.
41、 根据权利要求 40 所述的第二网络设备, 其特征在于, 所述
发送单元还用于, 41. The second network device according to claim 40, characterized in that: The sending unit is also used to,
向第一网络设备发送高层信令, 其中, 所述高层信令包含第一指 示信息, 用于指示所述第一子帧为固定配置子帧或可变配置子帧; 相应的, 所述发送单元具体用于, Send high-level signaling to the first network device, where the high-level signaling includes first indication information used to indicate that the first subframe is a fixed configuration subframe or a variable configuration subframe; accordingly, the sending The unit is specifically used for,
若所述第一子帧为固定配置子帧, 则所述 PCFICH用来指示所述 PDCCH所占的符号; If the first subframe is a fixed configuration subframe, the PCFICH is used to indicate the symbols occupied by the PDCCH;
若所述第一子帧为可变配置子帧, 将所述第一子帧的子帧结构信 息用所述第一子帧的前 N个 OFDM符号内传输的 PCFICH承载发送 给所述第一网络设备。 If the first subframe is a variable configuration subframe, the subframe structure information of the first subframe is sent to the first subframe using the PCFICH bearer transmitted within the first N OFDM symbols of the first subframe. Internet equipment.
42、 根据权利要求 40 所述的第二网络设备, 其特征在于, 所述 发送单元具体用于, 42. The second network device according to claim 40, characterized in that the sending unit is specifically used to:
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM 符号内传输的所述 PDCCH 公共搜索区间内的下行控制信息 DCI内的信息承载发送给所述第一网络设备; The subframe structure information of the first subframe is sent to the first subframe using the information bearer in the downlink control information DCI in the PDCCH common search interval transmitted in the first N OFDM symbols of the first subframe. Internet equipment;
或者, or,
将所述第一子帧的子帧结构信息用所述第一子帧的前 N 个 OFDM符号内传输的所述 PDCCH公共搜索区间内的所述 DCI的扰码 信息或者其循环冗余码校验 CRC 的扰码信息承载发送给所述第一网 络设备。 The subframe structure information of the first subframe is corrected using the scrambling information of the DCI in the PDCCH common search interval transmitted in the first N OFDM symbols of the first subframe or its cyclic redundancy code. The scrambling code information bearing the CRC is sent to the first network device.
43、 根据权利要求 36 所述的第二网络设备, 其特征在于, 所述 发送单元具体用于, 43. The second network device according to claim 36, characterized in that the sending unit is specifically used to:
将所述第一子帧的子帧结构信息用所述第一子帧的前一个子帧 的最后一个符号的信息承载发送给所述第一网络设备。 The subframe structure information of the first subframe is carried and sent to the first network device using the information of the last symbol of the subframe preceding the first subframe.
44、 根据权利要求 36 所述的第二网络设备, 其特征在于, 所述 发送单元具体用于, 44. The second network device according to claim 36, characterized in that the sending unit is specifically used to:
将所述第一子帧的子帧结构信息用所述第一子帧的主同步信号 PSS 的信道或辅同步信号 S S S 的信道或类似 PS S 的信道或 S S S 的信 道承载发送给所述第一网络设备, 其中, 所述类似 PS S的信道是与所 述 PS S信道结构相似但传输资源位置不同的信道,所述类似 SS S信道
是与所述 S S S信道结构相似但传输资源位置不同的信道。 The subframe structure information of the first subframe is carried by the channel of the primary synchronization signal PSS or the channel of the secondary synchronization signal SSS or a channel similar to PSS or a channel of SSS of the first subframe and sent to the first subframe. Network equipment, wherein the PS S-like channel is a channel with a similar structure to the PS S channel but a different transmission resource location, and the S S-like channel It is a channel with a similar structure to the SSS channel but different transmission resource locations.
45、 根据权利要求 36 所述的第二网络设备, 其特征在于, 所述 发送单元具体用于, 45. The second network device according to claim 36, characterized in that the sending unit is specifically used to:
将所述第一子帧的子帧结构信息用所述第一子帧的导频信息承 载发送给所述第一网络设备; 其中, 所述导频信息包括下述导频中的 一种或多种: 小区专有导频 CRS , 信道状态信息测量导频 CSI-RS , 解调参考信号 DMRS。 The subframe structure information of the first subframe is carried and sent to the first network device using the pilot information of the first subframe; wherein, the pilot information includes one of the following pilots or Various: cell-specific pilot CRS, channel state information measurement pilot CSI-RS, demodulation reference signal DMRS.
46、 根据权利要求 45 所述的第二网络设备, 其特征在于, 所述 发送单元具体用于, 46. The second network device according to claim 45, characterized in that the sending unit is specifically used to:
将所述第一子帧的子帧结构信息用所述第一子帧的所述导频信 , ¾的扰码信息或扩频码信息承载发送给所述第一网络设备; The subframe structure information of the first subframe is carried and sent to the first network device using the scrambling code information or spreading code information of the pilot signal of the first subframe;
或者, or,
将所述第一子帧的子帧结构信息用所述第一子帧的至少两个 0 F D M符号的导频信息承载发送给第一网络设备。
The subframe structure information of the first subframe is carried and sent to the first network device using pilot information of at least two OFDM symbols of the first subframe.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201380003253.8A CN105052237B (en) | 2013-12-17 | 2013-12-17 | Method and network device for acquiring and configuring subframe structure |
CN201911266267.4A CN111163025B (en) | 2013-12-17 | 2013-12-17 | Method and network device for acquiring and configuring subframe structure |
PCT/CN2013/089713 WO2015089745A1 (en) | 2013-12-17 | 2013-12-17 | Method and network device for obtaining and configuring sub-frame structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2013/089713 WO2015089745A1 (en) | 2013-12-17 | 2013-12-17 | Method and network device for obtaining and configuring sub-frame structure |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015089745A1 true WO2015089745A1 (en) | 2015-06-25 |
Family
ID=53401933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2013/089713 WO2015089745A1 (en) | 2013-12-17 | 2013-12-17 | Method and network device for obtaining and configuring sub-frame structure |
Country Status (2)
Country | Link |
---|---|
CN (2) | CN111163025B (en) |
WO (1) | WO2015089745A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108882368A (en) * | 2017-05-12 | 2018-11-23 | 中国移动通信有限公司研究院 | A kind of indicating means of the configuration information of frame structure determines method and device |
CN109474990A (en) * | 2017-09-08 | 2019-03-15 | 华为技术有限公司 | Resource allocation method, terminal and the network equipment |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111130732B (en) * | 2018-11-01 | 2021-12-21 | 华为技术有限公司 | Communication resource allocation method, communication device, and storage medium |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101414902A (en) * | 2007-10-16 | 2009-04-22 | 大唐移动通信设备有限公司 | Transmission method and apparatus for long term evolution TDD system |
CN101478829A (en) * | 2008-01-04 | 2009-07-08 | 华为技术有限公司 | Method and apparatus for implementing DBCH sending under time division duplexing mode |
CN103313250A (en) * | 2012-03-16 | 2013-09-18 | 华为技术有限公司 | Cell configuration method, synchronization method, user equipment and base station |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7839845B2 (en) * | 2005-06-27 | 2010-11-23 | Intel Corporation | Apparatus, system and method capable of aggregate compression in a wireless LAN |
CN103152149B (en) * | 2007-01-10 | 2016-08-17 | 联想创新有限公司(香港) | Base station, subscriber equipment, communication system and communication means |
CN101547496B (en) * | 2008-03-25 | 2012-01-11 | 中兴通讯股份有限公司 | Terminal access method |
CN101577690A (en) * | 2008-05-07 | 2009-11-11 | 三星电子株式会社 | OFDM data transmission method and system |
CN101588337B (en) * | 2008-05-22 | 2013-04-10 | 电信科学技术研究院 | Method for optimizing time division multiplexing frame structure parameters, communication method, system and terminal |
US8873463B2 (en) * | 2009-02-19 | 2014-10-28 | Lg Electronics Inc. | Method and apparatus for transmitting/receiving data in a relay communication system |
CN101990306B (en) * | 2009-07-31 | 2014-07-09 | 华为技术有限公司 | Method for configuring relay link resources, base station and system |
CN103326840A (en) * | 2012-03-23 | 2013-09-25 | 电信科学技术研究院 | Method, system and device for time division duplex communication |
CN103379520B (en) * | 2012-04-26 | 2016-02-17 | 电信科学技术研究院 | A kind of carrying out disturbs the method and apparatus controlled |
-
2013
- 2013-12-17 CN CN201911266267.4A patent/CN111163025B/en active Active
- 2013-12-17 CN CN201380003253.8A patent/CN105052237B/en active Active
- 2013-12-17 WO PCT/CN2013/089713 patent/WO2015089745A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101414902A (en) * | 2007-10-16 | 2009-04-22 | 大唐移动通信设备有限公司 | Transmission method and apparatus for long term evolution TDD system |
CN101478829A (en) * | 2008-01-04 | 2009-07-08 | 华为技术有限公司 | Method and apparatus for implementing DBCH sending under time division duplexing mode |
CN103313250A (en) * | 2012-03-16 | 2013-09-18 | 华为技术有限公司 | Cell configuration method, synchronization method, user equipment and base station |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108882368A (en) * | 2017-05-12 | 2018-11-23 | 中国移动通信有限公司研究院 | A kind of indicating means of the configuration information of frame structure determines method and device |
CN108882368B (en) * | 2017-05-12 | 2021-11-19 | 中国移动通信有限公司研究院 | Indication method, determination method and device for configuration information of frame structure |
CN109474990A (en) * | 2017-09-08 | 2019-03-15 | 华为技术有限公司 | Resource allocation method, terminal and the network equipment |
CN109474990B (en) * | 2017-09-08 | 2023-10-24 | 华为技术有限公司 | Resource allocation method, terminal and network equipment |
Also Published As
Publication number | Publication date |
---|---|
CN111163025A (en) | 2020-05-15 |
CN105052237B (en) | 2019-12-24 |
CN111163025B (en) | 2022-02-25 |
CN105052237A (en) | 2015-11-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10206209B2 (en) | Terminal device, integrated circuit, radio communication method, and base station device | |
KR102572919B1 (en) | Uplink control channel for low-latency communication | |
JP6296614B2 (en) | Terminal device, communication method, and integrated circuit | |
EP3101976B1 (en) | Terminal device, base station device, and communication method | |
TWI772312B (en) | Communication method based on wireless network, terminal equipment, and network equipment | |
EP3101975A1 (en) | Terminal device, base station device, and communication method | |
CN111818649B (en) | Data transmission device and method in direct communication | |
WO2016121433A1 (en) | Terminal device, base station device, communication method, and integrated circuit | |
JP6452048B2 (en) | TERMINAL DEVICE, BASE STATION DEVICE, COMMUNICATION METHOD, AND INTEGRATED CIRCUIT | |
JP6959918B2 (en) | Terminal equipment, base station equipment, and communication methods | |
JP7140489B2 (en) | TERMINAL DEVICE, BASE STATION DEVICE, AND COMMUNICATION METHOD | |
WO2013135129A1 (en) | Data transmission method, base station and user equipment | |
KR20150121205A (en) | Scheduling over multiple transmission time intervals | |
US11258557B2 (en) | Transmission method and device | |
WO2015129797A1 (en) | Terminal device, integrated circuit, and wireless communication method | |
WO2020063477A1 (en) | V2x communication method and device, computer readable storage medium | |
CA3030456A1 (en) | Method and terminal device for transmitting data | |
EP3051869A1 (en) | Terminal device, base station device, integrated circuit, and communication method | |
WO2013113261A1 (en) | Communication method, base station and user equipment | |
EP3562070B1 (en) | Data receiving and transmitting method and receiving and transmitting device | |
WO2014101040A1 (en) | Signal processing method and device | |
WO2015089745A1 (en) | Method and network device for obtaining and configuring sub-frame structure | |
US10887877B2 (en) | Method and apparatus for transmitting control channel | |
WO2013166655A1 (en) | Method and device for determining subframe which transmits crs | |
WO2013166688A1 (en) | Communication method and system, user equipment and network side device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201380003253.8 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13899923 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 13899923 Country of ref document: EP Kind code of ref document: A1 |