WO2023051539A1 - 上行预编码信息确定方法、终端及网络侧设备 - Google Patents
上行预编码信息确定方法、终端及网络侧设备 Download PDFInfo
- Publication number
- WO2023051539A1 WO2023051539A1 PCT/CN2022/121790 CN2022121790W WO2023051539A1 WO 2023051539 A1 WO2023051539 A1 WO 2023051539A1 CN 2022121790 W CN2022121790 W CN 2022121790W WO 2023051539 A1 WO2023051539 A1 WO 2023051539A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- information
- codebook subset
- precoding information
- precoding
- terminal
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 136
- 230000011664 signaling Effects 0.000 claims description 68
- 230000005540 biological transmission Effects 0.000 claims description 47
- 239000011159 matrix material Substances 0.000 claims description 39
- 238000004364 calculation method Methods 0.000 claims description 23
- 239000013598 vector Substances 0.000 claims description 11
- 238000013468 resource allocation Methods 0.000 claims description 7
- 230000010363 phase shift Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 abstract description 23
- 238000010586 diagram Methods 0.000 description 21
- 230000000694 effects Effects 0.000 description 11
- 230000006870 function Effects 0.000 description 10
- 238000012545 processing Methods 0.000 description 7
- 230000001427 coherent effect Effects 0.000 description 6
- 238000013507 mapping Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000004590 computer program Methods 0.000 description 4
- 230000003993 interaction Effects 0.000 description 4
- 238000007726 management method Methods 0.000 description 3
- 230000003190 augmentative effect Effects 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 241000699670 Mus sp. Species 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000004984 smart glass Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
Definitions
- the present application belongs to the technical field of communication, and specifically relates to a method for determining uplink precoding information, a terminal, and a network side device.
- the base station When scheduling the Physical Uplink Shared Channel (PUSCH) in the New Radio (NR) system, the base station indicates the Transmitted Precoding Matrix Indicator (Transmitted Precoding Matrix Indicator) in the Downlink Control Information (DCI).
- TPMI Transmitted Precoding Matrix Indicator
- DCI Downlink Control Information
- TPMI Transmitted Precoding Matrix Indicator
- the base station In order to support uplink data PUSCH for subband precoding, the base station needs to notify the terminal subband TPMI in the downlink control signaling, which may lead to relatively large downlink control signaling overhead. How to reduce the overhead of precoding information indication needs to be solved urgently.
- the embodiment of the present application provides a method that can solve the problem of how to reduce the overhead indicated by the precoding information.
- a method for determining uplink precoding information which is applied to a terminal, and the method includes:
- the terminal acquires codebook subset information
- the terminal determines uplink precoding information according to the codebook subset information.
- a method for determining uplink precoding information is provided, which is applied to a network side device, and the method includes:
- the network side device sends second signaling, where the second signaling is used to indicate codebook subset information to the terminal.
- an apparatus for determining uplink precoding information includes:
- a first acquiring unit configured to acquire codebook subset information
- the first determining unit is configured to determine uplink precoding information according to the codebook subset information.
- an apparatus for determining uplink precoding information includes:
- the first sending unit is configured to send second signaling, where the second signaling is used to indicate the codebook subset information to the terminal.
- a terminal includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor.
- the program or instruction is executed by the processor The steps of the method described in the first aspect are realized.
- a terminal including a processor and a communication interface, wherein the processor is configured to acquire codebook subset information; and determine uplink precoding information according to the codebook subset information.
- a network-side device includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor, and the program or instruction is executed by the The processor implements the steps of the method described in the second aspect when executed.
- a network side device including a processor and a communication interface, where the communication interface is used to send second signaling, and the second signaling is used to indicate codebook subset information to a terminal.
- a readable storage medium is provided, and programs or instructions are stored on the readable storage medium, and when the programs or instructions are executed by a processor, the steps of the method described in the first aspect are realized, or the steps of the method described in the first aspect are realized, or The steps of the method described in the second aspect.
- a chip in a tenth aspect, includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method as described in the first aspect , or implement the method described in the second aspect.
- a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the program/program product is executed by at least one processor to implement the The steps of the method, or the steps of implementing the method as described in the second aspect.
- the overhead of indicating the precoding information can be effectively reduced.
- FIG. 1 is a structural diagram of a wireless communication system applicable to an embodiment of the present application
- FIG. 2 is one of the schematic flowcharts of the method for determining uplink precoding information provided by the embodiment of the present application;
- FIG. 3 is a schematic diagram of the relationship between precoding information and subbands provided by the embodiment of the present application.
- FIG. 4 is a schematic diagram of cyclically mapping precoding information in codebook subset information to each subband provided by an embodiment of the present application
- FIG. 5 is the second schematic flow diagram of the method for determining uplink precoding information provided by the embodiment of the present application.
- FIG. 6 is one of the schematic structural diagrams of an apparatus for determining uplink precoding information provided by an embodiment of the present application.
- FIG. 7 is a second structural schematic diagram of an apparatus for determining uplink precoding information provided by an embodiment of the present application.
- Figure 8 is one of the interactive flow diagrams of the uplink precoding information determination method provided by the embodiment of the present application.
- FIG. 9 is the second schematic diagram of the interaction process of the method for determining uplink precoding information provided by the embodiment of the present application.
- FIG. 10 is the third schematic diagram of the interaction process of the method for determining uplink precoding information provided by the embodiment of the present application.
- FIG. 11 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
- FIG. 12 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.
- FIG. 13 is a schematic structural diagram of a network side device provided by an embodiment of the present application.
- first, second and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and “second” distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects.
- “and/or” in the description and claims means at least one of the connected objects, and the character “/” generally means that the related objects are an "or” relationship.
- LTE Long Term Evolution
- LTE-Advanced LTE-Advanced
- LTE-A Long Term Evolution-Advanced
- CDMA Code Division Multiple Access
- TDMA Time Division Multiple Access
- FDMA Frequency Division Multiple Access
- OFDMA Orthogonal Frequency Division Multiple Access
- SC-FDMA Single-carrier Frequency-Division Multiple Access
- system and “network” in the embodiments of the present application are often used interchangeably, and the described technologies can be used for the above-mentioned systems and radio technologies as well as other systems and radio technologies.
- NR New Radio
- the following description describes the New Radio (NR) system for illustrative purposes, and uses NR terminology in most of the following descriptions, but these techniques can also be applied to applications other than NR system applications, such as the 6th generation (6 th Generation, 6G) communication system.
- 6G 6th Generation
- FIG. 1 shows a structural diagram of a wireless communication system to which this embodiment of the present application is applicable.
- the wireless communication system includes a terminal 11 and a network side device 12 .
- the terminal 11 can also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile internet device (Mobile Internet Device, MID), augmented reality (augmented reality, AR)/virtual reality (virtual reality, VR) equipment, robots, wearable devices (Wearable Device), vehicle-mounted equipment (VUE), pedestrian terminal (PUE), smart home (home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture etc.) and other terminal-side devices, wearable devices include: smart watches, smart bracelets, smart headphones
- the network side device 12 may be a base station or a core network, where a base station may be called a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service Basic Service Set (BSS), Extended Service Set (ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN access point, WiFi node, transmission Receiving point (Transmitting Receiving Point, TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiment of this application, only The base station in the NR system is taken as an example, but the specific type of the base station is not limited.
- the base station indicates the TPMI in the DCI when scheduling the uplink transmission data PUSCH.
- TPMI bandwidth
- the terminal uses a TPMI indicated by the base station to precode resources in all frequency domains of the PUSCH before sending. Table 2 below shows different sets of precoding matrices supported by the current protocol according to terminal capabilities.
- the uplink precoding indication precoding information is 6 bits, and the uplink PUSCH The rank (number of data streams) and the corresponding precoding are indicated together.
- the above precoding information only supports broadband, that is, it is applied within the entire PUSCH scheduling bandwidth. How to indicate that the subband TPMI is not supported when the uplink performs subband precoding and sends PUSCH, and at the same time indicates that a wideband TPMI requires a maximum of 6 bits. In order to support subband precoding, multiple TPMIs need to be indicated at the same time, and the DCI overhead is too large to work.
- FIG. 2 is one of the schematic flow charts of the method for determining uplink precoding information provided in the embodiment of the present application. As shown in FIG. 2 , the executing subject of the method for determining uplink precoding information is a terminal.
- the method for determining uplink precoding information includes the following steps:
- Step 200 the terminal acquires codebook subset information
- the terminal in order to determine the uplink precoding information, the terminal needs to obtain codebook subset information first.
- the codebook subset information is used to indicate the codebook subset that can be used for uplink transmission.
- the codebook subset information may be the codebook subset itself; the codebook subset information may also be indication information of the codebook subset, for example, index information of the codebook subset, mapping to the codebook Subset bitmap information, etc.
- the codebook subset information may also be an index of a discrete Fourier transform (Discrete Fourier Transformation, DFT) vector/beam.
- DFT Discrete Fourier Transformation
- the codebook subset information includes a set of indexes of DFT vectors/beams, indicating that these DFT vectors/beams are not included in the precoding information.
- the precoding information may be a precoding matrix, or a set of precoding matrices; the precoding information may also be indication information of a precoding matrix (set), such as precoding index information, bitmap information mapped to a precoding matrix, and the like.
- Precoding information can also be DFT vectors/beams, amplitude and phase coefficients, etc.
- the precoding index information refers to index information of a precoding matrix, such as TPMI.
- codebook subset information may also be replaced with precoding group information. Codebook subsets can also be replaced by precoding groups.
- the precoding group information includes at least one set of precoding information, and a set of precoding information includes at least one piece of precoding information.
- the precoding group information includes at least one set of precoding index information, or the precoding group information includes at least one set of precoding matrices.
- Step 201 the terminal determines uplink precoding information according to the codebook subset information.
- the terminal After acquiring the codebook subset information, the terminal determines uplink precoding information from the codebook subset information.
- the uplink precoding information refers to the precoding information selected by the terminal from the codebook subset information for processing frequency domain resources for uplink transmission.
- the terminal Before performing uplink transmission, the terminal acquires a corresponding precoding matrix according to the uplink precoding information to perform precoding processing on frequency domain resources for uplink transmission.
- the uplink transmission includes at least one of the following: physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) transmission, physical uplink control channel (Physical Uplink Control Channel, PUCCH) transmission, sounding reference signal (Sounding reference signal, SRS) transmission, Physical random-access channel (Physical random-access channel, PRACH) transmission.
- physical uplink shared channel Physical Uplink Shared Channel, PUSCH
- physical uplink control channel Physical Uplink Control Channel, PUCCH
- sounding reference signal Sounding reference signal
- SRS Sounding reference signal
- Physical random-access channel Physical random-access channel
- the overhead of indicating the precoding information can be effectively reduced.
- codebook subset information is indicated by at least one of the following:
- Media access/access control layer control element Media Access Control, MAC
- Control Element, CE Media Access Control
- Downlink control information DCI Downlink control information DCI.
- the codebook subset information may be configured by the network side device through a radio resource control (Radio Resource Control, RRC) message, or by the network side device through a media access/access control MACCE indication, or by The network side device indicates through DCI, or the network side device indicates through at least two of RRC message, MAC CE and DCI.
- RRC Radio Resource Control
- the MAC CE includes at least one of the following:
- DCI format identification information used to indicate the DCI format to which the codebook subset information is applied
- TCI Transmission Configuration Indicator
- Control resource collection pool index information
- the network side device indicates the codebook subset information to the terminal through the first MAC CE.
- the first MAC CE includes at least one of the following information: at least one precoding information, at least one set of precoding information, index information of at least one codebook subset information, mapping to codebook subset information and/or precoding information Bitmap bitmap information, DCI format identification information, antenna panel (panel) identification information, sounding reference signal SRS resource set index information, reference signal index information, transmission configuration indication TCI status information, control resource set pool index (CoresetPoolIndex) information.
- the terminal obtains the above information included in the first MAC CE, and then obtains the codebook subset information.
- the first MAC CE sent by the network side device carries at least one piece of precoding information, then the terminal obtains the at least one piece of precoding information, and then obtains the codebook subset information according to the at least one piece of precoding information.
- the precoding information includes at least one of the following: precoding index information, precoding matrix, transmission layer number (layer) or data stream number (rank), DFT vector/beam, at least one amplitude/phase coefficient, mapped to Bitmap information of the precoding matrix.
- the terminal may use at least one precoding index information as codebook subset information, or the terminal acquires a corresponding precoding matrix according to at least one precoding index information, Get codebook subset information.
- the first MAC CE sent by the network side device carries at least one set of precoding information, then the terminal obtains the at least one set of precoding information, and then obtains the codebook subset information according to the at least one set of precoding information.
- the first MAC CE sent by the network side device carries index information of at least one codebook subset information, and the terminal obtains the codebook subset information according to the index information of the at least one codebook subset information.
- the first MAC CE sent by the network side device carries bitmap (bitmap) information mapped to the codebook subset information and/or precoding information, and the terminal can obtain the codebook subset information according to the bitmap information and/or precoding information.
- bitmap bitmap
- the first MAC CE sent by the network side device carries DCI format identification information, where the DCI format identification information is used to indicate the DCI format to which the codebook subset information is applied.
- the DCI format is DCI format0_1 or DCI format 0_2.
- the terminal determines codebook subset information associated with the DCI format according to the DCI format identification information.
- the first MAC CE sent by the network side device carries antenna panel panel identification information, where the panel identification information is used to indicate the panel identification to which the codebook subset information is applied.
- the terminal determines codebook subset information associated with the panel identification information according to the panel identification information.
- the first MAC CE sent by the network side device carries sounding reference signal (Sounding Reference Signal, SRS) resource set index information.
- the terminal determines the codebook subset information associated with the SRS resource set according to the SRS resource set index information.
- the first MAC CE sent by the network side device carries reference signal index information, and the terminal determines codebook subset information associated with the reference signal according to the reference signal index information.
- the reference signal may be SRS.
- the first MAC CE sent by the network side device carries TCI state information, and the terminal obtains the TCI state information, the TCI state information includes a TCI state or a TCI state pool, and obtains the TCI state or TCI state pool associated with the TCI state or TCI state pool. codebook subset information.
- the first MAC CE sent by the network side device carries the control resource set pool index CoresetPoolIndex information, and the terminal determines the codebook subset information associated with the CoresetPoolIndex.
- the MAC CE simultaneously carries the codebook subset information and the SRS resource set index correspondingly associated with the codebook subset information.
- the terminal obtains the codebook subset information according to the instruction of the MAC CE, and by limiting the precoding information to the codebook subset, the precoding information indication overhead can be effectively reduced.
- the acquisition of the codebook subset information by the terminal includes at least one of the following:
- the terminal acquires the codebook subset information according to the SRS resource indicated by the uplink sounding resource indication SRI in the DCI;
- the terminal obtains the codebook subset information according to the TPMI indicated by the transmission precoding matrix index TPMI field in the DCI;
- the terminal acquires the codebook subset information according to a first target field in the DCI, where the first target field is used to indicate the codebook subset information;
- the terminal processes the local codebook subset stack according to the indication of the first target bit in the DCI to obtain the codebook subset information.
- the network side device can directly or indirectly indicate the codebook subset information to the terminal through the original indication field of DCI, or the newly added indication field or bit, or implicitly indicate the code to the terminal through DCI This subset of information.
- the implicit indication includes, but is not limited to, semi-static configuration combined with DCI dynamic indication.
- the terminal determines the codebook subset information according to the SRS resource indicated by the uplink sounding resource indication (SRS Resource Index, SRI) in the first DCI, and according to the association relationship between the SRS resource and the codebook subset information.
- SRS Resource Index SRI
- the terminal determines the codebook subset information according to the TPMI indicated by the TPMI field in the first DCI and according to the association relationship between the TPMI and the codebook subset information.
- the terminal acquires the codebook subset information indicated by the first target field in the first DCI, where the first target field is a newly added target field.
- the codebook subset information can be changed dynamically.
- the terminal maintains a codebook subset stack locally, and the terminal performs a push operation or a pop process on the codebook subset stack according to the indication of the first target bit in the first DCI, and the codebook subset stack All the precoding information in constitutes a codebook subset information.
- the first target bit may also be replaced by the fourth target field.
- the codebook subset stack can also be replaced by other dynamic data structures for storing precoding information.
- the terminal obtains the codebook subset information according to the indication of the DCI, and by limiting the precoding information to the codebook subset, the precoding information indication overhead can be effectively reduced.
- the RRC message is used to configure first signaling, and the first signaling is used to indicate the codebook subset information.
- the terminal receives the RRC message sent by the network side device, where the RRC message is used to configure the first signaling, and the first signaling is used to indicate codebook subset information.
- the terminal acquires the codebook subset information indicated by the first signaling according to the RRC message.
- the first signaling is associated with a target resource
- the target resource includes at least one of the following:
- association between the first signaling and the target resource may also be understood as the association between the target resource and the codebook subset information.
- the terminal obtains the codebook subset information according to the RRC configuration.
- the precoding information indication overhead can be effectively reduced.
- the Uplink transmission corresponding to different target resources may use different codebook subset information, which increases the flexibility of uplink transmission precoding.
- the codebook subset information includes a set of predefined precoding information.
- codebook subset information may also be a predefined set of precoding information, which is not indicated by the network side device.
- the terminal determines the uplink precoding information from a set of predefined precoding information, which can effectively reduce the network side configuration overhead and the precoding information indication overhead.
- the codebook subset information includes precoding information that meets at least one of the following conditions:
- One or more ports correspond to precoding information of the same phase.
- the coherence characteristic may be non-coherent, partially coherent or fully coherent.
- the P pieces of precoding information in the codebook subset information are associated with N subbands, and P and N are positive integers greater than 1.
- the P pieces of precoding information in the codebook subset information are associated with the N subbands, so that the terminal can perform subband precoding.
- P and N are the same or different.
- one piece of precoding information in the codebook subset information is associated with at least one subband. It can be understood that one piece of precoding information corresponds to at least one subband.
- N is the same as N, that is, N pieces of precoding information are associated with N subbands, which can be understood as a one-to-one correspondence between N pieces of precoding information and N subbands.
- the N subbands are indicated by at least one of the following manners:
- the N subbands may be predefined N subbands at equal intervals.
- the network side device indicates the codebook subset information to the terminal through the second MAC CE, and the P pieces of precoding information in the codebook subset information are associated with the N subbands.
- the second MAC CE includes at least one of the following:
- DCI format identification information used to indicate the DCI format to which the codebook subset information is applied
- Transmission configuration indicates TCI status information
- At least one subband index information At least one subband index information
- Bitmap information mapped to subbands Bitmap information mapped to subbands.
- the second MAC CE carries codebook subset information indication information and subband indication information.
- the indication information of the codebook subset information includes at least one of the following: precoding information, index information of the codebook subset information, bitmap information mapped to the codebook subset information and/or precoding information, DCI format identifier Information, antenna panel panel identification information, sounding reference signal SRS resource set index information, reference signal index information, transmission configuration indication TCI status information, control resource set pool index information.
- the indication information of the subband includes at least one of the following items: index information of the subband, and bitmap information mapped to the subband.
- the terminal determines the codebook subset information according to the indication information of the codebook subset information carried in the second MAC CE and the indication information of the subband, and the P pieces of precoding information in the codebook subset information are related to N subbands are associated.
- the N subbands are indicated by a second target field in the DCI.
- the network side device indicates N subbands through the second target field in the second DCI, and the N subbands correspond to the P pieces of precoding information in the codebook subset information.
- the second target domain is one of the following:
- the field for indicating the subband is a newly added field in the DCI for indicating the subband.
- the precoding information in the codebook subset information is associated with N subbands by means of predefinition, MAC CE indication or DCI indication, thereby realizing the indication of subband precoding information, which can effectively Reduce the overhead indicated by the sub-band precoding information.
- the method also includes:
- the terminal receives MAC CE or DCI for indicating precoding information
- the terminal determines uplink precoding information according to the codebook subset information, including:
- the terminal selects target precoding information from the codebook subset information as the uplink precoding information according to the indication of the MAC CE or DCI.
- the terminal selects the target precoding information from the codebook subset information as the uplink precoding information according to the instruction of the network side device.
- the network side device indicates the precoding information through MAC CE or DCI.
- the terminal receives a third MAC CE or a third DCI sent by the network side device, where the third MAC CE or DCI is used to indicate precoding information.
- the third MAC CE includes at least one piece of precoding information.
- the third DCI includes at least one field, which is used to indicate at least one piece of precoding information in the codebook subset information.
- the uplink precoding information includes subband precoding information.
- the terminal determines uplink precoding information according to the codebook subset information, including at least one of the following methods:
- the terminal uses the first precoding information in the codebook subset information as the uplink precoding information.
- the terminal randomly selects at least one piece of precoding information from the codebook subset information as the uplink precoding information.
- the terminal uses the first Q pieces of precoding information in the codebook subset information as the uplink precoding information, where Q is related to the number of subbands.
- the terminal uses all the precoding information in the codebook subset information as the precoding information for performing subband precoding.
- mode 2, mode 3, and mode 4 may also be methods for determining uplink precoding information that the terminal may adopt when the terminal does not receive MAC CE or DCI for indicating precoding information.
- the terminal performs a phase shift on the precoding information in the codebook subset information according to the first value, to obtain the precoding information of all subbands;
- the first value is a phase offset value, and the first value is determined by at least one of the following:
- the terminal is chosen randomly.
- high-layer signaling includes RRC, MAC CE, etc.
- the phase offset value is configured by high-level signaling, or the phase offset value is predefined; or, the phase offset value is determined by precoding in the codebook subset; or, the phase offset value is randomly selected by the terminal.
- the terminal cyclically maps the precoding information in the codebook subset information to each subband to obtain the precoding information of all subbands;
- the terminal determines to use the first precoding information in the codebook subset information according to the first precoding information in the codebook subset information and the first subband corresponding to the first precoding information
- the precoding information adjacent to the index of the coding information is used as the precoding information of the adjacent subband of the first subband;
- the terminal determines several precoding information/codebooks adjacent to the precoding information in the codebook subset information as the precoding of adjacent subbands based on the precoding information in the codebook subset information and the corresponding subbands .
- the terminal performs calculation according to the precoding information in the codebook subset information in a linear difference calculation manner, and obtains the precoding information of all subbands.
- the linear difference calculation method includes at least one of the following:
- Interpolation calculations of magnitude and/or phase are performed based on discrete Fourier transform DFT beams.
- the manner in which the terminal determines the uplink precoding information according to the codebook subset information is indicated by a third target field or a second target bit in the DCI.
- the network side device may indicate to the terminal which of the above methods (method 5 to mode 8) is used to determine the uplink precoding information through the DCI.
- 1 bit in the DCI may indicate whether to perform interpolation calculation on the precoding information in the codebook subset information.
- the terminal may determine the uplink precoding information from the codebook subset according to the instruction of the network side device or not according to the instruction of the network side device, and the uplink precoding information may include subband precoding information, thereby determining the subband precoding information.
- the precoding information can effectively reduce the overhead indicated by the precoding information or the subband precoding information.
- Fig. 5 is the second schematic flow diagram of the method for determining uplink precoding information provided by the embodiment of the present application. As shown in Fig. 5, the method includes the following steps:
- Step 500 the network side device sends second signaling, where the second signaling is used to indicate the codebook subset information to the terminal.
- the network side device indicates the codebook subset to the terminal, so that the precoding information determined by the terminal is limited to the codebook subset, which can effectively reduce the precoding information indication overhead.
- the second signaling includes at least one of the following:
- Downlink control information DCI Downlink control information DCI.
- the network side device indicates the codebook subset information to the terminal through the RRC message, MAC CE and/or DCI.
- the MAC CE includes at least one of the following:
- DCI format identification information used to indicate the DCI format to which the codebook subset information is applied
- Transmission configuration indicates TCI status information
- Control resource collection pool index information
- the DCI indicates codebook subset information to the terminal through at least one of the following:
- the uplink sounding resource in the DCI indicates the SRS resource indicated by the SRI;
- a first target field in the DCI where the first target field is used to indicate the codebook subset information
- the first target bit in the DCI is used to instruct the terminal to process the local codebook subset stack.
- the RRC message is used to configure first signaling, and the first signaling is used to indicate the codebook subset information.
- the first signaling is associated with a target resource
- the target resource includes at least one of the following:
- the network side device configures the codebook subset information through RRC.
- the precoding information indication overhead can be effectively reduced, and by associating the codebook subset with the target resource , so that uplink transmission corresponding to different target resources can use different codebook subset information, which increases the flexibility of uplink transmission precoding.
- the codebook subset information is a predefined set of precoding information.
- the codebook subset information includes precoding information that meets at least one of the following conditions:
- One or more ports correspond to precoding information of the same phase.
- the P pieces of precoding information in the codebook subset information are associated with N subbands, and P and N are positive integers greater than 1.
- N pieces of precoding information in the codebook subset information are associated with N subbands, so that the network side device only needs to indicate the codebook subset information to realize subband precoding information.
- the indication of coding information can effectively reduce the overhead of sub-band precoding information indication.
- the N subbands are indicated by at least one of the following manners:
- the MAC CE includes at least one of the following:
- DCI format identification information used to indicate the DCI format to which the codebook subset information is applied
- Transmission configuration indicates TCI status information
- At least one subband index information At least one subband index information
- Bitmap information mapped to subbands Bitmap information mapped to subbands.
- the N subbands are indicated by a second target field in the DCI.
- the second target domain is one of the following:
- the N precoding information in the codebook subset information is associated with the N subbands by means of predefinition, MAC CE indication or DCI indication, thereby realizing the indication of subband precoding information,
- the overhead indicated by the sub-band precoding information can be effectively reduced.
- the method also includes:
- the network side device indicates the precoding information to the terminal, so that the terminal determines the uplink precoding information from the codebook subset according to the instruction.
- the uplink precoding information may include subband precoding information, so as to determine the subband precoding information. information, which can effectively reduce the overhead indicated by precoding information or subband precoding information.
- the method also includes:
- the DCI indicates the manner of determining the uplink precoding information to the terminal through the third target field or the second target bit.
- the network side device indicates to the terminal the way to determine the uplink precoding information, so that the terminal determines the uplink precoding information according to the way indicated by the network side device, which can effectively reduce the number of precoding information or subband precoding information.
- the indicated overhead is the number of precoding information or subband precoding information.
- the precoding information includes at least one of the following:
- the number of transmission layers layer is the number of transmission layers layer.
- Bitmap information mapped to the precoding matrix Bitmap information mapped to the precoding matrix.
- the executing subject may be the device for determining uplink precoding information, or, the device used for performing the method for determining uplink precoding information in the device for determining uplink precoding information control module.
- the method for determining uplink precoding information performed by the device for determining uplink precoding information is taken as an example to describe the device for determining uplink precoding information provided in the embodiment of the present application.
- FIG. 6 is one of the schematic structural diagrams of an apparatus for determining uplink precoding information provided in an embodiment of the present application.
- the apparatus 600 for determining uplink precoding information includes:
- the first acquiring unit 610 is configured to acquire codebook subset information
- the first determining unit 620 is configured to determine uplink precoding information according to the codebook subset information.
- the overhead of indicating the precoding information can be effectively reduced.
- codebook subset information is indicated by at least one of the following:
- Downlink control information DCI Downlink control information DCI.
- the MAC CE includes at least one of the following:
- DCI format identification information used to indicate the DCI format to which the codebook subset information is applied
- Transmission configuration indicates TCI status information
- Control resource collection pool index information
- the first obtaining unit 610 is configured to perform at least one of the following:
- the local codebook subset stack is processed to obtain the codebook subset information.
- the RRC message is used to configure first signaling, and the first signaling is used to indicate the codebook subset information.
- the first signaling is associated with a target resource
- the target resource includes at least one of the following:
- the codebook subset information includes a set of predefined precoding information.
- the codebook subset information includes precoding information that meets at least one of the following conditions:
- One or more ports correspond to precoding information of the same phase.
- the P pieces of precoding information in the codebook subset information are associated with N subbands, and P and N are positive integers greater than 1.
- the N subbands are indicated by at least one of the following manners:
- the MAC CE includes at least one of the following:
- DCI format identification information used to indicate the DCI format to which the codebook subset information is applied
- Transmission configuration indicates TCI status information
- At least one subband index information At least one subband index information
- Bitmap information mapped to subbands Bitmap information mapped to subbands.
- the N subbands are indicated by a second target field in the DCI.
- the second target domain is one of the following:
- the device also includes:
- the first receiving unit is used to receive MAC CE or DCI for indicating precoding information
- the first determining unit 620 is configured to:
- the first determining unit 620 is configured to perform at least one of the following:
- the first precoding information in the codebook subset information is used as the uplink precoding information
- All precoding information in the codebook subset information is used as precoding information for performing subband precoding.
- the first determining unit 620 is configured to perform at least one of the following:
- Adjacent precoding information is used as precoding information of adjacent subbands of the first subband;
- the precoding information in the codebook subset information is calculated according to a linear difference calculation manner to obtain the precoding information of all subbands.
- the first value is determined by at least one of the following:
- the terminal is chosen randomly.
- the linear difference calculation method includes at least one of the following:
- Interpolation calculations of magnitude and/or phase are performed based on discrete Fourier transform DFT beams.
- the manner of determining the uplink precoding information according to the codebook subset information is indicated by a third target field or a second target bit in the DCI.
- the precoding information includes at least one of the following:
- the number of transmission layers layer is the number of transmission layers layer.
- Bitmap information mapped to the precoding matrix Bitmap information mapped to the precoding matrix.
- the device for determining uplink precoding information in this embodiment of the present application may be a device, a device with an operating system or an electronic device, or a component, an integrated circuit, or a chip in a terminal.
- the apparatus or electronic equipment may be a mobile terminal or a non-mobile terminal.
- the mobile terminal may include but not limited to the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machines or self-service machines, etc., are not specifically limited in this embodiment of the present application.
- the device for determining uplink precoding information provided by the embodiment of the present application can realize each process realized by the method embodiments in FIG. 2 to FIG. 4 , and achieve the same technical effect. To avoid repetition, details are not repeated here.
- FIG. 7 is the second structural schematic diagram of the device for determining uplink precoding information provided by the embodiment of the present application. As shown in FIG. 7 , the device 700 for determining uplink precoding information includes:
- the first sending unit 710 is configured to send second signaling, where the second signaling is used to indicate codebook subset information to the terminal.
- the precoding information determined by the terminal is limited to the codebook subset, which can effectively reduce the precoding information indication overhead.
- the second signaling includes at least one of the following:
- Downlink control information DCI Downlink control information DCI.
- the MAC CE includes at least one of the following:
- DCI format identification information used to indicate the DCI format to which the codebook subset information is applied
- Transmission configuration indicates TCI status information
- Control resource collection pool index information
- the DCI indicates codebook subset information to the terminal through at least one of the following:
- the uplink sounding resource in the DCI indicates the SRS resource indicated by the SRI;
- a first target field in the DCI where the first target field is used to indicate the codebook subset information
- the first target bit in the DCI is used to instruct the terminal to process the local codebook subset stack.
- the RRC message is used to configure first signaling, and the first signaling is used to indicate the codebook subset information.
- the first signaling is associated with a target resource
- the target resource includes at least one of the following:
- the codebook subset information is a predefined set of precoding information.
- the codebook subset information includes precoding information that meets at least one of the following conditions:
- One or more ports correspond to precoding information of the same phase.
- the P pieces of precoding information in the codebook subset information are associated with N subbands, and P and N are positive integers greater than 1.
- the N subbands are indicated by at least one of the following manners:
- the MAC CE includes at least one of the following:
- DCI format identification information used to indicate the DCI format to which the codebook subset information is applied
- Transmission configuration indicates TCI status information
- At least one subband index information At least one subband index information
- Bitmap information mapped to subbands Bitmap information mapped to subbands.
- the N subbands are indicated by a second target field in the DCI.
- the second target domain is one of the following:
- the device also includes:
- the second sending unit is configured to send MAC CE or DCI for indicating precoding information to the terminal.
- the device also includes:
- a third sending unit configured to send DCI for indicating a manner of determining uplink precoding information to the terminal
- the DCI indicates the manner of determining the uplink precoding information to the terminal through the third target field or the second target bit.
- the precoding information includes at least one of the following:
- the number of transmission layers layer is the number of transmission layers layer.
- Bitmap information mapped to the precoding matrix Bitmap information mapped to the precoding matrix.
- the device for determining uplink precoding information provided by the embodiment of the present application can realize each process realized by the method embodiment in FIG. 5 and achieve the same technical effect. To avoid repetition, details are not repeated here.
- Fig. 8 is one of the interactive flowcharts of the method for determining uplink precoding information provided by the embodiment of the present application. As shown in Figure 8, the method includes the following steps:
- Step 800 the network side device sends a second signaling to the terminal, and the second signaling is used to indicate codebook subset information to the terminal;
- Step 801 the terminal acquires codebook subset information according to the second signaling
- Step 802 the terminal determines uplink precoding information according to the codebook subset information.
- FIG. 9 is a second schematic diagram of an interaction flow of a method for determining uplink precoding information provided by an embodiment of the present application. As shown in Figure 9, the method includes the following steps:
- Step 900 the network side device sends a second signaling to the terminal, and the second signaling is used to indicate codebook subset information to the terminal;
- Step 901 the terminal acquires codebook subset information according to the second signaling
- Step 902 The network side device sends a third signaling to the terminal, where the third signaling is used to indicate precoding information;
- Step 903 the terminal determines uplink precoding information from the codebook subset information according to the third signaling.
- FIG. 10 is a third schematic diagram of an interaction flow of a method for determining uplink precoding information provided by an embodiment of the present application. As shown in Figure 10, the method includes the following steps:
- Step 1000 the network side device sends a second signaling to the terminal, and the second signaling is used to indicate codebook subset information to the terminal;
- Step 1001 the terminal acquires codebook subset information according to the second signaling
- Step 1002 the network side device sends a fourth signaling to the terminal, the fourth signaling is used to indicate the way to determine the uplink precoding information;
- Step 1003 the terminal determines uplink precoding information according to the manner indicated by the fourth signaling.
- this embodiment of the present application further provides a communication device 1100, including a processor 1101, a memory 1102, and programs or instructions stored in the memory 1102 and operable on the processor 1101,
- a communication device 1100 including a processor 1101, a memory 1102, and programs or instructions stored in the memory 1102 and operable on the processor 1101
- the communication device 1100 is a terminal
- the program or instruction is executed by the processor 1101
- various processes of the foregoing method embodiments can be implemented, and the same technical effect can be achieved.
- the communication device 1100 is a network-side device
- each process of the above-mentioned uplink precoding information determination method embodiment can be achieved, and the same technical effect can be achieved. In order to avoid repetition, details are not repeated here. .
- the embodiment of the present application also provides a terminal, including a processor and a communication interface, the processor is used to obtain codebook subset information, and determine uplink precoding information according to the codebook subset information.
- This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect.
- FIG. 12 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.
- the terminal 1200 includes, but is not limited to: a radio frequency unit 1201, a network module 1202, an audio output unit 1203, an input unit 1204, a sensor 1205, a display unit 1206, a user input unit 1207, an interface unit 1208, a memory 1209, and a processor 1210, etc. at least some of the components.
- the terminal 1200 can also include a power supply (such as a battery) for supplying power to various components, and the power supply can be logically connected to the processor 1210 through the power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions.
- a power supply such as a battery
- the terminal structure shown in FIG. 12 does not constitute a limitation on the terminal.
- the terminal may include more or fewer components than shown in the figure, or combine some components, or arrange different components, which will not be repeated here.
- the input unit 1204 may include a graphics processor (Graphics Processing Unit, GPU) 12041 and a microphone 12042, and the graphics processor 12041 is used for the image capture device (such as the image data of the still picture or video obtained by the camera) for processing.
- the display unit 1206 may include a display panel 12061, and the display panel 12061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
- the user input unit 1207 includes a touch panel 12071 and other input devices 12072 . Touch panel 12071, also called touch screen.
- the touch panel 12071 may include two parts, a touch detection device and a touch controller.
- Other input devices 12072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.
- the radio frequency unit 1201 receives the downlink data from the network side device, and processes it to the processor 1210; in addition, sends the uplink data to the network side device.
- the radio frequency unit 1201 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
- the memory 1209 can be used to store software programs or instructions as well as various data.
- the memory 1209 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, an application program or instructions required by at least one function (such as a sound playback function, an image playback function, etc.) and the like.
- the memory 1209 may include a high-speed random access memory, and may also include a nonvolatile memory, wherein the nonvolatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
- ROM Read-Only Memory
- PROM programmable read-only memory
- PROM erasable programmable read-only memory
- Erasable PROM Erasable PROM
- EPROM electrically erasable programmable read-only memory
- EEPROM electrically erasable programmable read-only memory
- flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.
- the processor 1210 may include one or more processing units; optionally, the processor 1210 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, application programs or instructions, etc., Modem processors mainly handle wireless communications, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 1210 .
- the processor 1210 is configured to acquire codebook subset information; and determine uplink precoding information according to the codebook subset information.
- the overhead of indicating the precoding information can be effectively reduced.
- codebook subset information is indicated by at least one of the following:
- Downlink control information DCI Downlink control information DCI.
- the MAC CE includes at least one of the following:
- DCI format identification information used to indicate the DCI format to which the codebook subset information is applied
- Transmission configuration indicates TCI status information
- Control resource collection pool index information
- the processor 1210 is configured to perform at least one of the following:
- the local codebook subset stack is processed to obtain the codebook subset information.
- the RRC message is used to configure first signaling, and the first signaling is used to indicate the codebook subset information.
- the first signaling is associated with a target resource
- the target resource includes at least one of the following:
- the codebook subset information includes a set of predefined precoding information.
- the codebook subset information includes precoding information that meets at least one of the following conditions:
- One or more ports correspond to precoding information of the same phase.
- the P pieces of precoding information in the codebook subset information are associated with N subbands, and P and N are positive integers greater than 1.
- the N subbands are indicated by at least one of the following manners:
- the MAC CE includes at least one of the following:
- DCI format identification information used to indicate the DCI format to which the codebook subset information is applied
- Transmission configuration indicates TCI status information
- At least one subband index information At least one subband index information
- Bitmap information mapped to subbands Bitmap information mapped to subbands.
- the N subbands are indicated by a second target field in the DCI.
- the second target domain is one of the following:
- the radio frequency unit 1201 is also used for:
- the processor 1210 is specifically used for:
- the processor 1210 is configured to perform at least one of the following:
- the first precoding information in the codebook subset information is used as the uplink precoding information
- All precoding information in the codebook subset information is used as precoding information for performing subband precoding.
- the processor 1210 is configured to perform at least one of the following:
- Adjacent precoding information is used as precoding information of adjacent subbands of the first subband;
- the precoding information in the codebook subset information is calculated according to a linear difference calculation manner to obtain the precoding information of all subbands.
- the first value is determined by at least one of the following:
- the terminal is chosen randomly.
- the linear difference calculation method includes at least one of the following:
- Interpolation calculations of magnitude and/or phase are performed based on discrete Fourier transform DFT beams.
- the terminal determines the uplink precoding information according to the codebook subset information through a third target field or a second target bit indication in the DCI.
- the precoding information includes at least one of the following:
- the number of transmission layers layer is the number of transmission layers layer.
- Bitmap information mapped to the precoding matrix Bitmap information mapped to the precoding matrix.
- the embodiment of the present application also provides a network side device, including a processor and a communication interface, where the communication interface is used to send second signaling, and the second signaling is used to indicate codebook subset information to a terminal.
- the network-side device embodiment corresponds to the above-mentioned network-side device method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this network-side device embodiment, and can achieve the same technical effect.
- the embodiment of the present application also provides a network side device.
- the network device 1300 includes: an antenna 1301 , a radio frequency device 1302 , and a baseband device 1303 .
- the antenna 1301 is connected to the radio frequency device 1302 .
- the radio frequency device 1302 receives information through the antenna 1301, and sends the received information to the baseband device 1303 for processing.
- the baseband device 1303 processes the information to be sent and sends it to the radio frequency device 1302
- the radio frequency device 1302 processes the received information and sends it out through the antenna 1301 .
- the foregoing frequency band processing device may be located in the baseband device 1303 , and the method performed by the network side device in the above embodiments may be implemented in the baseband device 1303 , and the baseband device 1303 includes a processor 1304 and a memory 1305 .
- the baseband device 1303 may include at least one baseband board, for example, a plurality of chips are arranged on the baseband board, as shown in FIG.
- the baseband device 1303 may also include a network interface 1306 for exchanging information with the radio frequency device 1302, such as a common public radio interface (common public radio interface, CPRI for short).
- a network interface 1306 for exchanging information with the radio frequency device 1302, such as a common public radio interface (common public radio interface, CPRI for short).
- the network side device in the embodiment of the present invention also includes: instructions or programs stored in the memory 1305 and executable on the processor 1304, and the processor 1304 calls the instructions or programs in the memory 1305 to execute the modules shown in FIG. 7 To avoid duplication, the method of implementation and to achieve the same technical effect will not be repeated here.
- the embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, each process in the above embodiment of the method for determining uplink precoding information is implemented, and The same technical effect can be achieved, so in order to avoid repetition, details will not be repeated here.
- the processor is the processor in the terminal described in the foregoing embodiments.
- the readable storage medium includes computer readable storage medium, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
- the embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the above method for determining uplink precoding information
- the chip includes a processor and a communication interface
- the communication interface is coupled to the processor
- the processor is used to run programs or instructions to implement the above method for determining uplink precoding information
- the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.
- the embodiment of the present application also provides a computer program/program product, the computer program/program product is stored in a non-transitory storage medium, and the program/program product is executed by at least one processor to implement the above-mentioned system message
- the computer program/program product is stored in a non-transitory storage medium, and the program/program product is executed by at least one processor to implement the above-mentioned system message
- the term “comprising”, “comprising” or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase “comprising a " does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.
- the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
本申请公开了一种上行预编码信息确定方法、终端及网络侧设备,属于通信技术领域,本申请实施例的上行预编码信息确定方法包括:终端获取码本子集信息;终端根据所述码本子集信息,确定上行预编码信息。
Description
相关申请的交叉引用
本申请要求于2021年09月30日提交的申请号为202111165809.6,发明名称为“上行预编码信息确定方法、终端及网络侧设备”的中国专利申请的优先权,其通过引用方式全部并入本申请。
本申请属于通信技术领域,具体涉及一种上行预编码信息确定方法、终端及网络侧设备。
新空口(New Radio,NR)系统中调度物理上行共享信道(Physical Uplink Shared Channel,PUSCH)时,基站在下行控制信息(Downlink Control Information,DCI)中指示传输预编码矩阵索引(Transmitted Precoding Matrix Indicator,TPMI)。目前只支持宽带TPMI指示,也就是基站调度PUSCH时指示一个TPMI对应所调度的所有频域上的PUSCH资源。终端在发送上行数据时采用基站指示的一个TPMI对PUSCH所有频域上的资源进行预编码后发送。
为支持上行数据PUSCH进行子带预编码,基站在下行控制信令中需要通知终端子带TPMI,可能会导致下行控制信令开销比较大,如何降低预编码信息指示的开销亟待解决。
发明内容
本申请实施例提供一种,能够解决如何降低预编码信息指示的开销的问题。
第一方面,提供了一种上行预编码信息确定方法,应用于终端,该方法包括:
终端获取码本子集信息;
终端根据所述码本子集信息,确定上行预编码信息。
第二方面,提供了一种上行预编码信息确定方法,应用于网络侧设备,该方法包括:
网络侧设备发送第二信令,所述第二信令用于向终端指示码本子集信息。
第三方面,提供了一种上行预编码信息确定装置,该装置包括:
第一获取单元,用于获取码本子集信息;
第一确定单元,用于根据所述码本子集信息,确定上行预编码信息。
第四方面,提供了一种上行预编码信息确定装置,该装置包括:
第一发送单元,用于发送第二信令,所述第二信令用于向终端指示码本子集信息。
第五方面,提供了一种终端,该终端包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤。
第六方面,提供了一种终端,包括处理器及通信接口,其中,所述处理器用于获取码本子集信息;根据所述码本子集信息,确定上行预编码信息。
第七方面,提供了一种网络侧设备,该网络侧设备包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第二方面所述的方法的步骤。
第八方面,提供了一种网络侧设备,包括处理器及通信接口,其中,所述通信接口用于发送第二信令,所述第二信令用于向终端指示码本子集信息。
第九方面,提供了一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如第一方面所述的方法的步骤,或者实现如第二方面所述的方法的步骤。
第十方面,提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如第一方面所述的方法,或实现如第二方面所述的方法。
第十一方面,提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在存储介质中,所述程序/程序产品被至少一个处理器执行以实现如第一方面所述的方法的步骤,或者实现如第二方面所述的方法的步骤。
本申请实施例中,通过将预编码信息限制在码本子集中,可以有效减少预编码信息指示开销。
图1是本申请实施例可应用的一种无线通信系统的结构图;
图2为本申请实施例提供的上行预编码信息确定方法的流程示意图之一;
图3为本申请实施例提供的预编码信息与子带的关系示意图;
图4为本申请实施例提供的将码本子集信息中的预编码信息循环映射到各个子带的示意图;
图5为本申请实施例提供的上行预编码信息确定方法的流程示意图之二;
图6为本申请实施例提供的上行预编码信息确定装置的结构示意图之一;
图7为本申请实施例提供的上行预编码信息确定装置的结构示意图之二;
图8为本申请实施例提供的上行预编码信息确定方法的交互流程示 意图之一;
图9为本申请实施例提供的上行预编码信息确定方法的交互流程示意图之二;
图10为本申请实施例提供的上行预编码信息确定方法的交互流程示意图之三;
图11为本申请实施例提供的通信设备的结构示意图;
图12为实现本申请实施例的一种终端的硬件结构示意图;
图13为本申请实施例提供的网络侧设备的结构示意图。
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员所获得的所有其他实施例,都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换,以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施,且“第一”、“第二”所区别的对象通常为一类,并不限定对象的个数,例如第一对象可以是一个,也可以是多个。此外,说明书以及权利要求中“和/或”表示所连接对象的至少其中之一,字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是,本申请实施例所描述的技术不限于长期演进型(Long Term Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)系统,还可用于其他无线通信系统,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency- Division Multiple Access,SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用,所描述的技术既可用于以上提及的系统和无线电技术,也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio,NR)系统,并且在以下大部分描述中使用NR术语,但是这些技术也可应用于NR系统应用以外的应用,如第6代(6
th Generation,6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的结构图。无线通信系统包括终端11和网络侧设备12。其中,终端11也可以称作终端设备或者用户终端(User Equipment,UE),终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant,PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer,UMPC)、移动上网装置(Mobile Internet Device,MID)、增强现实(augmented reality,AR)/虚拟现实(virtual reality,VR)设备、机器人、可穿戴式设备(Wearable Device)、车载设备(VUE)、行人终端(PUE)、智能家居(具有无线通信功能的家居设备,如冰箱、电视、洗衣机或者家具等)等终端侧设备,可穿戴式设备包括:智能手表、智能手环、智能耳机、智能眼镜、智能首饰(智能手镯、智能手链、智能戒指、智能项链、智能脚镯、智能脚链等)、智能腕带、智能服装、游戏机等。需要说明的是,在本申请实施例并不限定终端11的具体类型。网络侧设备12可以是基站或核心网,其中,基站可被称为节点B、演进节点B、接入点、基收发机站(Base Transceiver Station,BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set,BSS)、扩展服务集(Extended Service Set,ESS)、B节点、演进型B节点(eNB)、家用B节点、家用演进型B节点、WLAN接入点、WiFi节点、发送接收点(Transmitting Receiving Point,TRP)或所述领域中其他某个合适的术语,只要达到相同的技术效果,所述基站不限于特定技术词汇,需要说明的是,在本申请实施例中仅以NR系统中的基站为例,但是并不限定基站的具体类型。
NR系统中调度上行传输数据PUSCH时基站在DCI中指示TPMI。目前只支持宽带TPMI指示,也就是基站调度PUSCH时指示一个TPMI对应所调度的所有频域上的PUSCH资源。终端在发送上行数据时采用基站指示的一个TPMI对PUSCH所有频域上的资源进行预编码后发送。如下表格2为目前协议根据终端能力支持的不同预编码矩阵集合。比如4端口终端能力为全相和干部分相干和非相干(fullyAndPartialAndNonCoherent)时基站可以为终端配置码本子集codebookSubset=fullyAndPartialAndNonCoherent,这种情况下上行预编码指示预编码信息为6比特,其中上行PUSCH的rank(数据流数)和对应预编码一起指示的。基站如果指示了预编码信息为“0”(表格2最左边1列第1行)代表上行PUSCH的rank=1,而且预编码索引为“0”(表格3中第1行第1列预编码矩阵);如果指示了预编码信息为“60”(表格1最左边1列第61行)代表上行PUSCH的rank=4,而且预编码索引为“3”(表格6中第1行第4列预编码矩阵)。
其中,4天线rank=1预编码矩阵如表格3所示。4天线rank=2预编码矩阵如表格4所示。4天线rank=3预编码矩阵如表格5所示。4天线rank=4预编码矩阵如表格6所示。
表格2
表格3 4天线rank=1预编码矩阵
表格4 4天线rank=2预编码矩阵
表格5 4天线rank=3预编码矩阵
表格6 4天线rank=4预编码矩阵
上述预编码信息仅支持宽带,即在整个PUSCH调度带宽内应用。上行进行子带预编码发送PUSCH的情况下如何指示子带TPMI尚未支持,同时指示一个宽带TPMI最大需要6比特,为了支持子带预编码需要同时指示多个TPMI,DCI开销很大,无法工作。
下面结合附图,通过一些实施例及其应用场景对本申请实施例提供的上行预编码信息确定方法、终端及网络侧设备进行详细地说明。
图2为本申请实施例提供的上行预编码信息确定方法的流程示意图之一,如图2所示,该上行预编码信息确定方法的执行主体为终端。
该上行预编码信息确定方法包括如下步骤:
步骤200、终端获取码本子集信息;
在本申请实施例中,为了确定上行预编码信息,终端需要先获取码本子集信息。
码本子集信息用于指示可用于上行传输的码本子集。
在本申请实施例中,码本子集信息可以是码本子集本身;码本子集信息也可以是码本子集的指示信息,例如,码本子集的索引信息、映射到码本子集的位图信息等。
码本子集信息也可以是离散傅里叶变换(Discrete Fourier Transformation,DFT)向量/波束的索引。例如码本子集信息包含一组DFT向量/波束的索引,表示这些DFT向量/波束不包含在预编码信息中。
预编码信息可以是预编码矩阵,或者,预编码矩阵集合;预编码信息也 可以是预编码矩阵(集合)的指示信息,例如预编码索引信息、映射到预编码矩阵的位图信息等。
预编码信息也可以是DFT向量/波束,幅度和相位系数等。
其中,预编码索引信息是指预编码矩阵的索引信息,例如TPMI。
需要说明的是,在本申请实施例中,码本子集信息还可以替换为预编码组信息。码本子集还可以替换为预编码组。
可以理解,预编码组信息包括至少一组预编码信息,一组预编码信息中包括至少一个预编码信息。
例如,预编码组信息包括至少一组预编码索引信息,或者,预编码组信息包括至少一组预编码矩阵。
步骤201、终端根据所述码本子集信息,确定上行预编码信息。
终端在获取码本子集信息之后,从该码本子集信息中确定上行预编码信息。
在本申请实施例中,上行预编码信息是指终端从码本子集信息中选择的用于对上行传输的频域资源进行处理的预编码信息。
终端在进行上行传输之前,根据该上行预编码信息获取对应的预编码矩阵对上行传输的频域资源进行预编码处理。
其中,上行传输至少包括以下之一:物理上行共享信道(Physical Uplink Shared Channel,PUSCH)传输,物理上行控制信道(Physical Uplink Control Channel,PUCCH)传输,探测参考信号(Sounding reference signal,SRS)传输,物理随机接入信道(Physical random-access channel,PRACH)传输。
在本申请实施例中,通过将预编码信息限制在码本子集中,可以有效减少预编码信息指示开销。
可选地,所述码本子集信息通过以下至少一项指示:
无线资源控制RRC消息;
媒介访问/接入控制层控制元素(Media Access Control,MAC)控制元素(Control Element,CE);
下行控制信息DCI。
可以理解的是,所述码本子集信息可以由网络侧设备通过无线资源控制(Radio Resource Control,RRC)消息配置,或者,由网络侧设备通过媒介访问/接入控制MACCE指示,或者,由网络侧设备通过DCI指示,或者由网络侧设备通过RRC消息、MAC CE和DCI中的至少两项指示。
在一些可选的实施例中,所述MAC CE包括以下至少一项:
至少一个预编码信息;
至少一组预编码信息;
至少一个码本子集信息的索引信息;
映射到码本子集信息和/或预编码信息的位图bitmap信息;
DCI格式标识信息,用于指示应用所述码本子集信息的DCI格式;
天线面板panel标识信息;
探测参考信号SRS资源集合索引信息;
参考信号索引信息;
传输配置指示(Transmission Configuration Indicator,TCI)状态信息;
控制资源集合池索引信息。
可选地,网络侧设备通过第一MAC CE向终端指示码本子集信息。该第一MAC CE中包括以下至少一项信息:至少一个预编码信息、至少一组预编码信息、至少一个码本子集信息的索引信息、映射到码本子集信息和/或预编码信息的位图bitmap信息、DCI格式标识信息、天线面板(panel)标识信息、探测参考信号SRS资源集合索引信息、参考信号索引信息、传输配置指示TCI状态信息、控制资源集合池索引(CoresetPoolIndex)信息。
终端获取第一MAC CE中包括的上述信息,进而得到码本子集信息。
可选地,网络侧设备发送的第一MAC CE中携带了至少一个预编码信息,则终端获取该至少一个预编码信息,进而根据该至少一个预编码信息,得到码本子集信息。
可选地,预编码信息包括以下至少一项:预编码索引信息,预编码矩阵, 传输层数(layer)或数据流数(rank),DFT向量/波束,至少一个幅度/相位系数,映射到预编码矩阵的位图信息。
例如,在该预编码信息为预编码索引信息的情况下,终端可以将至少一个预编码索引信息作为码本子集信息,或者,终端根据至少一个预编码索引信息,获取相应的预编码矩阵,得到码本子集信息。
可选地,网络侧设备发送的第一MAC CE中携带至少一组预编码信息,则终端获取该至少一组预编码信息,进而根据该至少一组预编码信息,得到码本子集信息。
可选地,网络侧设备发送的第一MAC CE中携带至少一个码本子集信息的索引信息,终端根据该至少一个码本子集信息的索引信息,得到码本子集信息。
可选地,网络侧设备发送的第一MAC CE中携带映射到码本子集信息和/或预编码信息的位图(bitmap)信息,终端根据该位图信息,可以获得码本子集信息和/或预编码信息。
可选地,网络侧设备发送的第一MAC CE中携带DCI格式标识信息,其中,DCI格式标识信息用于指示应用所述码本子集信息的DCI格式。
例如,DCI格式为DCI format0_1 or DCI format 0_2。终端根据该DCI格式标识信息,确定与所述DCI格式关联的码本子集信息。
可选地,网络侧设备发送的第一MAC CE中携带天线面板panel标识信息,其中,panel标识信息用于指示应用所述码本子集信息的panel标识。
终端根据该panel标识信息,确定与该panel标识信息关联的码本子集信息。
可选地,网络侧设备发送的第一MAC CE中携带探测参考信号(Sounding Reference Signal,SRS)资源集合索引信息。终端根据该SRS资源集合索引信息,确定该SRS资源集合关联的码本子集信息。
可选地,网络侧设备发送的第一MAC CE中携带参考信号索引信息,终端根据该参考信号索引信息,确定参考信号关联的码本子集信息。此处,参 考信号可以是SRS。
可选地,网络侧设备发送的第一MAC CE中携带TCI状态信息,终端获取该TCI状态信息,所述TCI状态信息包括TCI状态或TCI状态池,得到与所述TCI状态或TCI状态池关联的码本子集信息。
可选地,网络侧设备发送的第一MAC CE中携带控制资源集合池索引CoresetPoolIndex信息,终端确定与所述CoresetPoolIndex关联的码本子集信息。
需要说明的是,上述各种实施方式可以结合。
例如,MAC CE同时携带码本子集信息以及与所述码本子集信息对应关联的SRS资源集索引。
在本申请实施例中,终端根据MAC CE的指示获取码本子集信息,通过将预编码信息限制在码本子集中,可以有效减少预编码信息指示开销。
在一些可选的实施例中,所述终端获取码本子集信息包括以下至少一项:
所述终端根据所述DCI中的上行探测资源指示SRI指示的SRS资源,获取所述码本子集信息;
所述终端根据所述DCI中的传输预编码矩阵索引TPMI域指示的TPMI,获取所述码本子集信息;
所述终端根据所述DCI中的第一目标域,获取所述码本子集信息,所述第一目标域用于指示所述码本子集信息;
所述终端根据所述DCI中的第一目标比特位的指示,对本地的码本子集栈进行处理,得到所述码本子集信息。
可以理解的是,网络侧设备可以通过DCI的原有指示域,或者,新增的指示域或比特位,向终端直接或间接指示码本子集信息,也可以通过DCI向终端隐式指示码本子集信息。
其中,隐式指示包括但不限于通过半静态配置并结合DCI动态指示实现。
一种实施方式中,终端根据第一DCI中的上行探测资源指示(SRS Resource Index,SRI)指示的SRS资源,并根据SRS资源与码本子集信息的 关联关系,确定码本子集信息。
一种实施方中,终端根据第一DCI中的TPMI域指示的TPMI,并根据TPMI与码本子集信息的关联关系,确定码本子集信息。
一种实施方式中,终端获取第一DCI中的第一目标域指示的码本子集信息,其中,第一目标域是新增的目标域。
一种实施方式中,码本子集信息可以动态改变。终端在本地维护一个码本子集栈,终端根据第一DCI中的第一目标比特位的指示,对该码本子集栈进行入栈push操作或出栈pop处理,该码本子集栈内的所有预编码信息组成一个码本子集信息。
需要说明的是,第一目标比特位也可以替换为第四目标域。码本子集栈也可以替换为其他用于存储预编码信息的动态数据结构。
在本申请实施例中,终端根据DCI的指示获取码本子集信息,通过将预编码信息限制在码本子集中,可以有效减少预编码信息指示开销。
在一些可选的实施例中,所述RRC消息用于配置第一信令,所述第一信令用于指示所述码本子集信息。
可以理解的是,终端接收网络侧设备发送的RRC消息,其中,所述RRC消息用于配置第一信令,所述第一信令用于指示码本子集信息。
终端根据该RRC消息,获取第一信令指示的码本子集信息。
可选地,所述第一信令与目标资源关联,所述目标资源包括以下至少一项:
DCI格式;
搜索空间;
SRS资源;
SRS资源集合;
控制资源集合;
Panel;
TCI状态;
TCI状态池;
控制资源集合池。
其中,第一信令与目标资源关联也可以理解为目标资源与码本子集信息关联。
在本申请实施例中,终端根据RRC配置获取码本子集信息,通过将预编码信息限制在码本子集中,可以有效减少预编码信息指示开销,通过将码本子集与目标资源关联,使得不同目标资源对应的上行传输可以采用不同的码本子集信息,增加了上行传输预编码的灵活度。
在一些可选的实施例中,所述码本子集信息包括预定义的一组预编码信息。
可以理解的是,码本子集信息也可以是预定义的一组预编码信息,不由网络侧设备指示。
在本申请实施例中,终端从预定义的一组预编码信息中确定上行预编码信息,可以有效减少网络侧配置开销以及预编码信息指示开销。
在一些可选的实施例中,所述码本子集信息中包括满足以下至少一个条件的预编码信息:
具有相同相干特性的预编码信息;
一个或多个端口对应相同相位的预编码信息。
其中,相干特性可以是不相干、部分相干或全相干。
在一些可选的实施例中,所述码本子集信息中的P个预编码信息与N个子带关联,P、N为大于1的正整数。
码本子集信息中的P个预编码信息与N个子带关联,可以使得终端进行子带预编码。
P与N相同或不同。
可选地,码本子集信息中的一个预编码信息与至少一个子带关联。可以理解为,一个预编码信息对应至少一个子带。
可选地,P与N相同,即N个预编码信息与N个子带关联,可以理解 为N个预编码信息与N个子带一一对应。
相关技术中,为了支持上行传输进行子带预编码,网络侧设备需要在下行控制信令中携带子带预编码信息,在子带个数较多的场景下,会导致下行控制信令开销较大,而本申请通过对码本子集信息进行设计,使码本子集信息中的预编码信息与N个子带关联,从而使得网络侧设备只需要指示码本子集信息即可实现子带预编码信息的指示,可有效降低子带预编码信息指示的开销。
可选地,所述N个子带由以下方式中的至少之一指示:
预定义;
MAC CE;
DCI。
可选地,所述N个子带可以是预定义的等间隔的N个子带。
参考如下公式:
图3为本申请实施例提供的预编码信息与子带的关系示意图。如图3所示,码本子集={W1,W3,W5,W7}。
在一些可选的实施例中,网络侧设备通过第二MAC CE向终端指示码本子集信息,码本子集信息中的P个预编码信息与N个子带关联。
其中,所述第二MAC CE包括以下至少一项:
至少一个预编码信息;
至少一组预编码信息;
至少一个码本子集信息的索引信息;
映射到码本子集信息和/或预编码信息的bitmap信息;
DCI格式标识信息,用于指示应用所述码本子集信息的DCI格式;
天线面板panel标识信息;
探测参考信号SRS资源集合索引信息;
参考信号索引信息;
传输配置指示TCI状态信息;
控制资源集合池索引信息;
至少一个子带索引信息;
映射到子带的位图信息。
可以理解的是,第二MAC CE中携带码本子集信息的指示信息以及子带的指示信息。
其中,码本子集信息的指示信息包括以下至少一项:预编码信息,码本子集信息的索引信息,映射到码本子集信息和/或预编码信息的位图信息,DCI格式标识信息,天线面板panel标识信息,探测参考信号SRS资源集合索引信息,参考信号索引信息,传输配置指示TCI状态信息,控制资源集合池索引信息。
子带的指示信息包括以下至少一项:子带的索引信息,映射到子带的位图信息。
可选地,终端根据第二MAC CE中携带的码本子集信息的指示信息以及子带的指示信息,确定码本子集信息,所述码本子集信息中的P个预编码信息与N个子带关联。
可选地,所述N个子带通过所述DCI中的第二目标域指示。
可以理解,网络侧设备通过第二DCI中的第二目标域指示N个子带,该N个子带与码本子集信息中的P个预编码信息对应。
可选地,所述第二目标域为以下之一:
频域资源分配(Frequency Domain Resource Allocation,FDRA)域;
用于指示子带的域。
其中,用于指示子带的域是DCI中新增的用于指示子带的域。
在本申请实施例中,通过预定义、MAC CE指示或DCI指示的方式,使码本子集信息中的预编码信息与N个子带关联,从而实现了子带预编码信息 的指示,可有效降低子带预编码信息指示的开销。
下面介绍终端根据码本子集信息,确定上行预编码信息的几种方式。
在一些可选的实施例中,所述方法还包括:
终端接收用于指示预编码信息的MAC CE或DCI;
所述终端根据所述码本子集信息,确定上行预编码信息,包括:
终端根据所述MAC CE或DCI的指示,从所述码本子集信息中选择出目标预编码信息作为所述上行预编码信息。
可以理解,终端根据网络侧设备的指示,从码本子集信息中选择出目标预编码信息,作为上行预编码信息。其中,网络侧设备通过MAC CE或DCI指示预编码信息。
可选地,终端接收网络侧设备发送的第三MAC CE或第三DCI,所述第三MAC CE或DCI用于指示预编码信息。
可选地,第三MAC CE中包括至少一个预编码信息。
可选地,第三DCI中包括至少一个域,用于指示码本子集信息中的至少一个预编码信息。
可选地,上行预编码信息包括子带预编码信息。
在一些可选的实施例中,所述终端根据所述码本子集信息,确定上行预编码信息,包括如下以下至少一种方式:
方式1,在所述终端未接收到用于指示预编码信息的MAC CE或DCI的情况下,终端将所述码本子集信息中的第一个预编码信息作为所述上行预编码信息。
方式2,终端从所述码本子集信息中随机选择至少一个预编码信息作为所述上行预编码信息。
方式3,终端将所述码本子集信息中的前Q个预编码信息作为所述上行预编码信息,其中,Q与子带个数有关。
方式4,终端将所述码本子集信息中的所有预编码信息作为进行子带预编码的预编码信息。
需要说明的是,方式2,方式3,方式4也可以是在终端未接收到用于指示预编码信息的MAC CE或DCI的情况下,终端可以采用的确定上行预编码信息的方式。
方式5,终端对所述码本子集信息中的预编码信息按照第一值进行相位偏移,得到所有子带的预编码信息;
其中,所述第一值为相位偏移值,所述第一值通过以下至少一项确定:
高层信令;
预定义;
所述码本子集信息中的预编码信息;
终端随机选择。
可选地,高层信令包括RRC,MAC CE等。
即相位偏移值由高层信令配置,或者,相位偏移值是预定义的;或者,相位偏移值由码本子集中的预编码决定;或者,相位偏移值由终端随机选择获得。
方式6,终端将所述码本子集信息中的预编码信息循环映射到各个子带,得到所有子带的预编码信息;
图4为本申请实施例提供的将码本子集信息中的预编码信息循环映射到各个子带的示意图。其中,码本子集={W1,W2}。
方式7,终端根据所述码本子集信息中的第一预编码信息以及所述第一预编码信息对应的第一子带,确定将所述码本子集信息中与所述第一预编码信息的索引相邻的预编码信息作为所述第一子带的相邻子带的预编码信息;
即终端由码本子集信息中的预编码信息以及对应的子带,确定码本子集信息中与该预编码信息相邻的几个预编码信息/码本作为相邻子带的预编码。
方式8,终端根据所述码本子集信息中的预编码信息按照线性差值计算方式进行计算,得到所有子带的预编码信息。
此处的所有子带是针对上行传输而言。
在一些可选的实施例中,所述线性差值计算方式包括以下至少一项:
基于天线端口进行插值计算;
基于预编码信息的行或列进行插值计算;
基于离散傅里叶变换DFT波束进行幅度和/或相位的插值计算。
在一些可选的实施例中,所述终端根据所述码本子集信息,确定上行预编码信息的方式通过DCI中的第三目标域或第二目标比特位指示。
可以理解,网络侧设备可以通过DCI向终端指示具体采用上述哪种方式(方式5~方式8)确定上行预编码信息。
例如,可以通过DCI中的1比特指示是否对码本子集信息中的预编码信息进行插值计算。
在本申请实施例中,终端可以根据网络侧设备的指示或者不依据网络侧设备的指示,从码本子集中确定上行预编码信息,上行预编码信息可以包括子带预编码信息,从而确定子带预编码信息,可有效降低预编码信息或子带预编码信息指示的开销。
图5为本申请实施例提供的上行预编码信息确定方法的流程示意图之二,如图5所示,该方法包括以下步骤:
步骤500、网络侧设备发送第二信令,所述第二信令用于向终端指示码本子集信息。
在本申请实施例中,网络侧设备通过向终端指示码本子集,使得终端确定的预编码信息被限制在码本子集中,可以有效减少预编码信息指示开销。
由于本实施例是以网络侧设备为执行主体,对于本实施例的理解可以参考前述以终端为执行主体的实施例中的相关描述,在此不再赘述。
可选地,所述第二信令包括以下至少一项:
无线资源控制RRC消息;
媒介访问控制层控制元素MAC CE;
下行控制信息DCI。
可以理解,网络侧设备通过RRC消息,MAC CE和/或DCI向终端指示码本子集信息。
对于本实施例的理解可以参考前述以终端为执行主体的实施例中的相关描述,在此不再赘述。
可选地,所述MAC CE包括以下至少一项:
至少一个预编码信息;
至少一组预编码信息;
至少一个码本子集信息的索引信息;
映射到码本子集信息和/或预编码信息的位图bitmap信息;
DCI格式标识信息,用于指示应用所述码本子集信息的DCI格式;
天线面板panel标识信息;
探测参考信号SRS资源集合索引信息;
参考信号索引信息;
传输配置指示TCI状态信息;
控制资源集合池索引信息。
对于本实施例的理解可以参考前述以终端为执行主体的实施例中的相关描述,在此不再赘述。
可选地,所述DCI通过以下至少一项向终端指示码本子集信息:
所述DCI中的上行探测资源指示SRI指示的SRS资源;
所述DCI中的传输预编码矩阵索引TPMI域指示的TPMI;
所述DCI中的第一目标域,所述第一目标域用于指示所述码本子集信息;
所述DCI中的第一目标比特位,所述第一目标比特位用于指示终端对本地的码本子集栈进行处理。
对于本实施例的理解可以参考前述以终端为执行主体的实施例中的相关描述,在此不再赘述。
可选地,所述RRC消息用于配置第一信令,所述第一信令用于指示所述码本子集信息。
可选地,所述第一信令与目标资源关联,所述目标资源包括以下至少一项:
DCI格式;
搜索空间;
SRS资源;
SRS资源集合;
控制资源集合;
Panel;
TCI状态;
TCI状态池;
控制资源集合池。
对于本实施例的理解可以参考前述以终端为执行主体的实施例中的相关描述,在此不再赘述。
在本申请实施例中,网络侧设备通过RRC配置码本子集信息,通过将预编码信息限制在码本子集中,可以有效减少预编码信息指示开销,并且通过将码本子集与目标资源关联,使得不同目标资源对应的上行传输可以采用不同的码本子集信息,增加了上行传输预编码的灵活度。
可选地,所述码本子集信息为预定义的一组预编码信息。
对于本实施例的理解可以参考前述以终端为执行主体的实施例中的相关描述,在此不再赘述。
可选地,所述码本子集信息中包括满足以下至少一个条件的预编码信息:
具有相同相干特性的预编码信息;
一个或多个端口对应相同相位的预编码信息。
对于本实施例的理解可以参考前述以终端为执行主体的实施例中的相关描述,在此不再赘述。
可选地,所述码本子集信息中的P个预编码信息与N个子带关联,P、N为大于1的正整数。
对于本实施例的理解可以参考前述以终端为执行主体的实施例中的相关描述,在此不再赘述。
本申请通过对码本子集信息进行设计,使码本子集信息中的N个预编码信息与N个子带关联,从而使得网络侧设备只需要指示码本子集信息即可实现子带预编码信息的指示,可有效降低子带预编码信息指示的开销。
可选地,所述N个子带由以下方式中的至少之一指示:
预定义;
MAC CE;
DCI。
可选地,所述MAC CE包括以下至少一项:
至少一个预编码信息;
至少一组预编码信息;
至少一个码本子集的索引信息;
映射到码本子集信息和/或预编码信息的位图bitmap信息;
DCI格式标识信息,用于指示应用所述码本子集信息的DCI格式;
天线面板panel标识信息;
探测参考信号SRS资源集合索引信息;
参考信号索引信息;
传输配置指示TCI状态信息;
控制资源集合池索引信息;
至少一个子带索引信息;
映射到子带的位图信息。
可选地,所述N个子带通过所述DCI中的第二目标域指示。
可选地,所述第二目标域为以下之一:
频域资源分配FDRA域;
用于指示子带的域。
对于本实施例的理解可以参考前述以终端为执行主体的实施例中的相关描述,在此不再赘述。
在本申请实施例中,通过预定义、MAC CE指示或DCI指示的方式,使 码本子集信息中的N个预编码信息与N个子带关联,从而实现了子带预编码信息的指示,可有效降低子带预编码信息指示的开销。
可选地,所述方法还包括:
向终端发送用于指示预编码信息的MAC CE或DCI。
对于本实施例的理解可以参考前述以终端为执行主体的实施例中的相关描述,在此不再赘述。
在本申请实施例中,网络侧设备向终端指示预编码信息,以使得终端根据指示从码本子集中确定上行预编码信息,上行预编码信息可以包括子带预编码信息,从而确定子带预编码信息,可有效降低预编码信息或子带预编码信息指示的开销。
可选地,所述方法还包括:
向终端发送用于指示确定上行预编码信息的方式的DCI;
其中,所述DCI通过第三目标域或第二目标比特位向终端指示所述确定上行预编码信息的方式。
对于本实施例的理解可以参考前述以终端为执行主体的实施例中的相关描述,在此不再赘述。
在本申请实施例中,网络侧设备向终端指示确定上行预编码信息的方式,以使得终端根据网络侧设备指示的方式,确定上行预编码信息,可有效降低预编码信息或子带预编码信息指示的开销。
可选地,所述预编码信息包括以下至少一项:
预编码索引信息;
预编码矩阵
传输层数layer;
数据流数rank;
DFT向量/波束;
至少一个幅度/相位系数;
映射到预编码矩阵的位图信息。
需要说明的是,本申请实施例提供的上行预编码信息确定方法,执行主体可以为上行预编码信息确定装置,或者,该上行预编码信息确定装置中的用于执行上行预编码信息确定方法的控制模块。本申请实施例中以上行预编码信息确定装置执行上行预编码信息确定方法为例,说明本申请实施例提供的上行预编码信息确定装置。
图6为本申请实施例提供的上行预编码信息确定装置的结构示意图之一,如图6所示,该上行预编码信息确定装置600包括:
第一获取单元610,用于获取码本子集信息;
第一确定单元620,用于根据所述码本子集信息,确定上行预编码信息。
在本申请实施例中,通过将预编码信息限制在码本子集中,可以有效减少预编码信息指示开销。
可选地,所述码本子集信息通过以下至少一项指示:
无线资源控制RRC消息;
媒介访问控制层控制元素MAC CE;
下行控制信息DCI。
可选地,所述MAC CE包括以下至少一项:
至少一个预编码信息;
至少一组预编码信息;
至少一个码本子集信息的索引信息;
映射到码本子集信息和/或预编码信息的位图bitmap信息;
DCI格式标识信息,用于指示应用所述码本子集信息的DCI格式;
天线面板panel标识信息;
探测参考信号SRS资源集合索引信息;
参考信号索引信息;
传输配置指示TCI状态信息;
控制资源集合池索引信息。
可选地,所述第一获取单元610用于执行以下至少一项:
根据所述DCI中的上行探测资源指示SRI指示的SRS资源,获取所述码本子集信息;
根据所述DCI中的传输预编码矩阵索引TPMI域指示的TPMI,获取所述码本子集信息;
根据所述DCI中的第一目标域,获取所述码本子集信息,所述第一目标域用于指示所述码本子集信息;
根据所述DCI中的第一目标比特位的指示,对本地的码本子集栈进行处理,得到所述码本子集信息。
可选地,所述RRC消息用于配置第一信令,所述第一信令用于指示所述码本子集信息。
可选地,所述第一信令与目标资源关联,所述目标资源包括以下至少一项:
DCI格式;
搜索空间;
SRS资源;
SRS资源集合;
控制资源集合;
Panel;
TCI状态;
TCI状态池;
控制资源集合池。
可选地,所述码本子集信息包括预定义的一组预编码信息。
可选地,所述码本子集信息中包括满足以下至少一个条件的预编码信息:
具有相同相干特性的预编码信息;
一个或多个端口对应相同相位的预编码信息。
可选地,所述码本子集信息中的P个预编码信息与N个子带关联,P、N为大于1的正整数。
可选地,所述N个子带由以下方式中的至少之一指示:
预定义;
MAC CE;
DCI。
可选地,所述MAC CE包括以下至少一项:
至少一个预编码信息;
至少一组预编码信息;
至少一个码本子集信息的索引信息;
映射到码本子集信息和/或预编码信息的bitmap信息;
DCI格式标识信息,用于指示应用所述码本子集信息的DCI格式;
天线面板panel标识信息;
探测参考信号SRS资源集合索引信息;
参考信号索引信息;
传输配置指示TCI状态信息;
控制资源集合池索引信息;
至少一个子带索引信息;
映射到子带的位图信息。
可选地,所述N个子带通过所述DCI中的第二目标域指示。
可选地,所述第二目标域为以下之一:
频域资源分配FDRA域;
用于指示子带的域。
可选地,所述装置还包括:
第一接收单元,用于接收用于指示预编码信息的MAC CE或DCI;
所述第一确定单元620,用于:
根据所述MAC CE或DCI的指示,从所述码本子集信息中选择出目标预编码信息作为所述上行预编码信息。
可选地,所述第一确定单元620,用于执行以下至少一项:
在未接收到用于指示预编码信息的MAC CE或DCI的情况下,将所述码本子集信息中的第一个预编码信息作为所述上行预编码信息;
从所述码本子集信息中随机选择至少一个预编码信息作为所述上行预编码信息;
将所述码本子集信息中的前Q个预编码信息作为所述上行预编码信息,其中,Q与子带个数有关;
将所述码本子集信息中的所有预编码信息作为进行子带预编码的预编码信息。
可选地,所述第一确定单元620,用于执行以下至少一项:
对所述码本子集信息中的预编码信息按照第一值进行相位偏移,得到所有子带的预编码信息;
将所述码本子集信息中的预编码信息循环映射到各个子带,得到所有子带的预编码信息;
根据所述码本子集信息中的第一预编码信息以及所述第一预编码信息对应的第一子带,确定将所述码本子集信息中与所述第一预编码信息的索引相邻的预编码信息作为所述第一子带的相邻子带的预编码信息;
根据所述码本子集信息中的预编码信息按照线性差值计算方式进行计算,得到所有子带的预编码信息。
可选地,所述第一值通过以下至少一项确定:
高层信令;
预定义;
所述码本子集信息中的预编码信息;
终端随机选择。
可选地,所述线性差值计算方式包括以下至少一项:
基于天线端口进行插值计算;
基于预编码信息的行或列进行插值计算;
基于离散傅里叶变换DFT波束进行幅度和/或相位的插值计算。
可选地,所述根据所述码本子集信息,确定上行预编码信息的方式通过DCI中的第三目标域或第二目标比特位指示。
可选地,所述预编码信息包括以下至少一项:
预编码索引信息;
预编码矩阵
传输层数layer;
数据流数rank;
离散傅里叶变换DFT向量/波束;
至少一个幅度/相位系数;
映射到预编码矩阵的位图信息。
本申请实施例中上行预编码信息确定装置可以是装置,具有操作系统的装置或电子设备,也可以是终端中的部件、集成电路、或芯片。该装置或电子设备可以是移动终端,也可以为非移动终端。示例性的,移动终端可以包括但不限于上述所列举的终端11的类型,非移动终端可以为服务器、网络附属存储器(Network Attached Storage,NAS)、个人计算机(personal computer,PC)、电视机(television,TV)、柜员机或者自助机等,本申请实施例不作具体限定。
本申请实施例提供的上行预编码信息确定装置能够实现图2至图4的方法实施例实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
图7为本申请实施例提供的上行预编码信息确定装置的结构示意图之二,如图7所示,该上行预编码信息确定装置700包括:
第一发送单元710,用于发送第二信令,所述第二信令用于向终端指示码本子集信息。
在本申请实施例中,通过向终端指示码本子集,使得终端确定的预编码信息被限制在码本子集中,可以有效减少预编码信息指示开销。
可选地,所述第二信令包括以下至少一项:
无线资源控制RRC消息;
媒介访问控制层控制元素MAC CE;
下行控制信息DCI。
可选地,所述MAC CE包括以下至少一项:
至少一个预编码信息;
至少一组预编码信息;
至少一个码本子集信息的索引信息;
映射到码本子集信息和/或预编码信息的位图bitmap信息;
DCI格式标识信息,用于指示应用所述码本子集信息的DCI格式;
天线面板panel标识信息;
探测参考信号SRS资源集合索引信息;
参考信号索引信息;
传输配置指示TCI状态信息;
控制资源集合池索引信息。
可选地,所述DCI通过以下至少一项向终端指示码本子集信息:
所述DCI中的上行探测资源指示SRI指示的SRS资源;
所述DCI中的传输预编码矩阵索引TPMI域指示的TPMI;
所述DCI中的第一目标域,所述第一目标域用于指示所述码本子集信息;
所述DCI中的第一目标比特位,所述第一目标比特位用于指示终端对本地的码本子集栈进行处理。
可选地,所述RRC消息用于配置第一信令,所述第一信令用于指示所述码本子集信息。
可选地,所述第一信令与目标资源关联,所述目标资源包括以下至少一项:
DCI格式;
搜索空间;
SRS资源;
SRS资源集合;
控制资源集合;
Panel;
TCI状态;
TCI状态池;
控制资源集合池。
可选地,所述码本子集信息为预定义的一组预编码信息。
可选地,所述码本子集信息中包括满足以下至少一个条件的预编码信息:
具有相同相干特性的预编码信息;
一个或多个端口对应相同相位的预编码信息。
可选地,所述码本子集信息中的P个预编码信息与N个子带关联,P、N为大于1的正整数。
可选地,所述N个子带由以下方式中的至少之一指示:
预定义;
MAC CE;
DCI。
可选地,所述MAC CE包括以下至少一项:
至少一个预编码信息;
至少一组预编码信息;
至少一个码本子集的索引信息;
映射到码本子集信息和/或预编码信息的位图bitmap信息;
DCI格式标识信息,用于指示应用所述码本子集信息的DCI格式;
天线面板panel标识信息;
探测参考信号SRS资源集合索引信息;
参考信号索引信息;
传输配置指示TCI状态信息;
控制资源集合池索引信息;
至少一个子带索引信息;
映射到子带的位图信息。
可选地,所述N个子带通过所述DCI中的第二目标域指示。
可选地,所述第二目标域为以下之一:
频域资源分配FDRA域;
用于指示子带的域。
可选地,所述装置还包括:
第二发送单元,用于向终端发送用于指示预编码信息的MAC CE或DCI。
可选地,所述装置还包括:
第三发送单元,用于向终端发送用于指示确定上行预编码信息的方式的DCI;
其中,所述DCI通过第三目标域或第二目标比特位向终端指示所述确定上行预编码信息的方式。
可选地,所述预编码信息包括以下至少一项:
预编码索引信息;
预编码矩阵
传输层数layer;
数据流数rank;
离散傅里叶变换DFT向量/波束;
至少一个幅度/相位系数;
映射到预编码矩阵的位图信息。
本申请实施例提供的上行预编码信息确定装置能够实现图5的方法实施例实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
图8为本申请实施例提供的上行预编码信息确定方法的交互流程示意图之一。如图8所示,该方法包括以下步骤:
步骤800、网络侧设备向终端发送第二信令,所述第二信令用于向终端指示码本子集信息;
步骤801、终端根据所述第二信令,获取码本子集信息;
步骤802、终端根据所述码本子集信息,确定上行预编码信息。
图9为本申请实施例提供的上行预编码信息确定方法的交互流程示意图之二。如图9所示,该方法包括以下步骤:
步骤900、网络侧设备向终端发送第二信令,所述第二信令用于向终端指示码本子集信息;
步骤901、终端根据所述第二信令,获取码本子集信息;
步骤902、网络侧设备向终端发送第三信令,所述第三信令用于指示预编码信息;
步骤903、终端根据所述第三信令,从所述码本子集信息中确定上行预编码信息。
图10为本申请实施例提供的上行预编码信息确定方法的交互流程示意图之三。如图10所示,该方法包括以下步骤:
步骤1000、网络侧设备向终端发送第二信令,所述第二信令用于向终端指示码本子集信息;
步骤1001、终端根据所述第二信令,获取码本子集信息;
步骤1002、网络侧设备向终端发送第四信令,所述第四信令用于指示确定上行预编码信息的方式;
步骤1003、终端按照所述第四信令指示的方式确定上行预编码信息。
可选的,如图11所示,本申请实施例还提供一种通信设备1100,包括处理器1101,存储器1102,存储在存储器1102上并可在所述处理器1101上运行的程序或指令,例如,该通信设备1100为终端时,该程序或指令被处理器1101执行时实现上述方法实施例的各个过程,且能达到相同的技术效果。该通信设备1100为网络侧设备时,该程序或指令被处理器1101执行时实现上述上行预编码信息确定方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供一种终端,包括处理器和通信接口,处理器用于获 取码本子集信息,根据所述码本子集信息,确定上行预编码信息。该终端实施例是与上述终端侧方法实施例对应的,上述方法实施例的各个实施过程和实现方式均可适用于该终端实施例中,且能达到相同的技术效果。具体地,图12为实现本申请实施例的一种终端的硬件结构示意图。
该终端1200包括但不限于:射频单元1201、网络模块1202、音频输出单元1203、输入单元1204、传感器1205、显示单元1206、用户输入单元1207、接口单元1208、存储器1209、以及处理器1210等中的至少部分部件。
本领域技术人员可以理解,终端1200还可以包括给各个部件供电的电源(比如电池),电源可以通过电源管理系统与处理器1210逻辑相连,从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图12中示出的终端结构并不构成对终端的限定,终端可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置,在此不再赘述。
应理解的是,本申请实施例中,输入单元1204可以包括图形处理器(Graphics Processing Unit,GPU)12041和麦克风12042,图形处理器12041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元1206可包括显示面板12061,可以采用液晶显示器、有机发光二极管等形式来配置显示面板12061。用户输入单元1207包括触控面板12071以及其他输入设备12072。触控面板12071,也称为触摸屏。触控面板12071可包括触摸检测装置和触摸控制器两个部分。其他输入设备12072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。
本申请实施例中,射频单元1201将来自网络侧设备的下行数据接收后,给处理器1210处理;另外,将上行的数据发送给网络侧设备。通常,射频单元1201包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器1209可用于存储软件程序或指令以及各种数据。存储器1209可主要包括存储程序或指令区和存储数据区,其中,存储程序或指令区可存储 操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外,存储器1209可以包括高速随机存取存储器,还可以包括非易失性存储器,其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。
处理器1210可包括一个或多个处理单元;可选的,处理器1210可集成应用处理器和调制解调处理器,其中,应用处理器主要处理操作系统、用户界面和应用程序或指令等,调制解调处理器主要处理无线通信,如基带处理器。可以理解的是,上述调制解调处理器也可以不集成到处理器1210中。
其中,处理器1210,用于获取码本子集信息;根据所述码本子集信息,确定上行预编码信息。
在本申请实施例中,通过将预编码信息限制在码本子集中,可以有效减少预编码信息指示开销。
可选地,所述码本子集信息通过以下至少一项指示:
无线资源控制RRC消息;
媒介访问控制层控制元素MAC CE;
下行控制信息DCI。
可选地,所述MAC CE包括以下至少一项:
至少一个预编码信息;
至少一组预编码信息;
至少一个码本子集信息的索引信息;
映射到码本子集信息和/或预编码信息的位图bitmap信息;
DCI格式标识信息,用于指示应用所述码本子集信息的DCI格式;
天线面板panel标识信息;
探测参考信号SRS资源集合索引信息;
参考信号索引信息;
传输配置指示TCI状态信息;
控制资源集合池索引信息。
可选地,所述处理器1210用于执行以下至少一项:
根据所述DCI中的上行探测资源指示SRI指示的SRS资源,获取所述码本子集信息;
根据所述DCI中的传输预编码矩阵索引TPMI域指示的TPMI,获取所述码本子集信息;
根据所述DCI中的第一目标域,获取所述码本子集信息,所述第一目标域用于指示所述码本子集信息;
根据所述DCI中的第一目标比特位的指示,对本地的码本子集栈进行处理,得到所述码本子集信息。
可选地,所述RRC消息用于配置第一信令,所述第一信令用于指示所述码本子集信息。
可选地,所述第一信令与目标资源关联,所述目标资源包括以下至少一项:
DCI格式;
搜索空间;
SRS资源;
SRS资源集合;
控制资源集合;
Panel;
TCI状态;
TCI状态池;
控制资源集合池。
可选地,所述码本子集信息包括预定义的一组预编码信息。
可选地,所述码本子集信息中包括满足以下至少一个条件的预编码信息:
具有相同相干特性的预编码信息;
一个或多个端口对应相同相位的预编码信息。
可选地,所述码本子集信息中的P个预编码信息与N个子带关联,P、N为大于1的正整数。
可选地,所述N个子带由以下方式中的至少之一指示:
预定义;
MAC CE;
DCI。
可选地,所述MAC CE包括以下至少一项:
至少一个预编码信息;
至少一组预编码信息;
至少一个码本子集信息的索引信息;
映射到码本子集信息和/或预编码信息的bitmap信息;
DCI格式标识信息,用于指示应用所述码本子集信息的DCI格式;
天线面板panel标识信息;
探测参考信号SRS资源集合索引信息;
参考信号索引信息;
传输配置指示TCI状态信息;
控制资源集合池索引信息;
至少一个子带索引信息;
映射到子带的位图信息。
可选地,所述N个子带通过所述DCI中的第二目标域指示。
可选地,所述第二目标域为以下之一:
频域资源分配FDRA域;
用于指示子带的域。
可选地,所述射频单元1201还用于:
接收用于指示预编码信息的MAC CE或DCI;
所述处理器1210,具体用于:
根据所述MAC CE或DCI的指示,从所述码本子集信息中选择出目标预编码信息作为所述上行预编码信息。
可选地,所述处理器1210,用于执行以下至少一项:
在未接收到用于指示预编码信息的MAC CE或DCI的情况下,将所述码本子集信息中的第一个预编码信息作为所述上行预编码信息;
从所述码本子集信息中随机选择至少一个预编码信息作为所述上行预编码信息;
将所述码本子集信息中的前Q个预编码信息作为所述上行预编码信息,其中,Q与子带个数有关;
将所述码本子集信息中的所有预编码信息作为进行子带预编码的预编码信息。
可选地,所述处理器1210,用于执行以下至少一项:
对所述码本子集信息中的预编码信息按照第一值进行相位偏移,得到所有子带的预编码信息;
将所述码本子集信息中的预编码信息循环映射到各个子带,得到所有子带的预编码信息;
根据所述码本子集信息中的第一预编码信息以及所述第一预编码信息对应的第一子带,确定将所述码本子集信息中与所述第一预编码信息的索引相邻的预编码信息作为所述第一子带的相邻子带的预编码信息;
根据所述码本子集信息中的预编码信息按照线性差值计算方式进行计算,得到所有子带的预编码信息。
可选地,所述第一值通过以下至少一项确定:
高层信令;
预定义;
所述码本子集信息中的预编码信息;
终端随机选择。
可选地,所述线性差值计算方式包括以下至少一项:
基于天线端口进行插值计算;
基于预编码信息的行或列进行插值计算;
基于离散傅里叶变换DFT波束进行幅度和/或相位的插值计算。
可选地,所述终端根据所述码本子集信息,确定上行预编码信息的方式通过DCI中的第三目标域或第二目标比特位指示。
可选地,所述预编码信息包括以下至少一项:
预编码索引信息;
预编码矩阵
传输层数layer;
数据流数rank;
离散傅里叶变换DFT向量/波束;
至少一个幅度/相位系数;
映射到预编码矩阵的位图信息。
本申请实施例还提供一种网络侧设备,包括处理器和通信接口,通信接口用于发送第二信令,所述第二信令用于向终端指示码本子集信息。该网络侧设备实施例是与上述网络侧设备方法实施例对应的,上述方法实施例的各个实施过程和实现方式均可适用于该网络侧设备实施例中,且能达到相同的技术效果。
具体地,本申请实施例还提供了一种网络侧设备。如图13所示,该网络设备1300包括:天线1301、射频装置1302、基带装置1303。天线1301与射频装置1302连接。在上行方向上,射频装置1302通过天线1301接收信息,将接收的信息发送给基带装置1303进行处理。在下行方向上,基带装置1303对要发送的信息进行处理,并发送给射频装置1302,射频装置1302对收到的信息进行处理后经过天线1301发送出去。
上述频带处理装置可以位于基带装置1303中,以上实施例中网络侧设备执行的方法可以在基带装置1303中实现,该基带装置1303包括处理器1304 和存储器1305。
基带装置1303例如可以包括至少一个基带板,该基带板上设置有多个芯片,如图13所示,其中一个芯片例如为处理器1304,与存储器1305连接,以调用存储器1305中的程序,执行以上方法实施例中所示的网络设备操作。
该基带装置1303还可以包括网络接口1306,用于与射频装置1302交互信息,该接口例如为通用公共无线接口(common public radio interface,简称CPRI)。
具体地,本发明实施例的网络侧设备还包括:存储在存储器1305上并可在处理器1304上运行的指令或程序,处理器1304调用存储器1305中的指令或程序执行图7所示各模块执行的方法,并达到相同的技术效果,为避免重复,故不在此赘述。
本申请实施例还提供一种可读存储介质,所述可读存储介质上存储有程序或指令,该程序或指令被处理器执行时实现上述上行预编码信息确定方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
其中,所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质,包括计算机可读存储介质,如计算机只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等。
本申请实施例另提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现上述上行预编码信息确定方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
应理解,本申请实施例提到的芯片还可以称为系统级芯片,系统芯片,芯片系统或片上系统芯片等。
本申请实施例还提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在非瞬态的存储介质中,所述程序/程序产品被至少一个处理器执行以实现上述系统消息报告的上报方法实施例的各个过程,且能达到相同的 技术效果,为避免重复,这里不再赘述。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外,需要指出的是,本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能,还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能,例如,可以按不同于所描述的次序来执行所描述的方法,并且还可以添加、省去、或组合各种步骤。另外,参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以计算机软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端(可以是手机,计算机,服务器,或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述,但是本申请并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本申请的启示下,在不脱离本申请宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本申请的保护之内。
Claims (41)
- 一种上行预编码信息确定方法,包括:终端获取码本子集信息;终端根据所述码本子集信息,确定上行预编码信息。
- 根据权利要求1所述的上行预编码信息确定方法,其中,所述码本子集信息通过以下至少一项指示:无线资源控制RRC消息;媒介访问控制层控制元素MAC CE;下行控制信息DCI。
- 根据权利要求2所述的上行预编码信息确定方法,其中,所述MAC CE包括以下至少一项:至少一个预编码信息;至少一组预编码信息;至少一个码本子集信息的索引信息;映射到码本子集信息和/或预编码信息的位图bitmap信息;DCI格式标识信息,用于指示应用所述码本子集信息的DCI格式;天线面板panel标识信息;探测参考信号SRS资源集合索引信息;参考信号索引信息;传输配置指示TCI状态信息;控制资源集合池索引信息。
- 根据权利要求2所述的上行预编码信息确定方法,其中,所述终端获取码本子集信息包括以下至少一项:所述终端根据所述DCI中的上行探测资源指示SRI指示的SRS资源,获取所述码本子集信息;所述终端根据所述DCI中的传输预编码矩阵索引TPMI域指示的 TPMI,获取所述码本子集信息;所述终端根据所述DCI中的第一目标域,获取所述码本子集信息,所述第一目标域用于指示所述码本子集信息;所述终端根据所述DCI中的第一目标比特位的指示,对本地的码本子集栈进行处理,得到所述码本子集信息。
- 根据权利要求2所述的上行预编码信息确定方法,其中,所述RRC消息用于配置第一信令,所述第一信令用于指示所述码本子集信息。
- 根据权利要求5所述的上行预编码信息确定方法,其中,所述第一信令与目标资源关联,所述目标资源包括以下至少一项:DCI格式;搜索空间;SRS资源;SRS资源集合;控制资源集合;Panel;TCI状态;TCI状态池;控制资源集合池。
- 根据权利要求1所述的上行预编码信息确定方法,其中,所述码本子集信息包括预定义的一组预编码信息。
- 根据权利要求1所述的上行预编码信息确定方法,其中,所述码本子集信息中包括满足以下至少一个条件的预编码信息:具有相同相干特性的预编码信息;一个或多个端口对应相同相位的预编码信息。
- 根据权利要求1所述的上行预编码信息确定方法,其中,所述码本子集信息中的P个预编码信息与N个子带关联,P、N为大于1的正整 数。
- 根据权利要求9所述的上行预编码信息确定方法,其中,所述N个子带由以下方式中的至少之一指示:预定义;MAC CE;DCI。
- 根据权利要求10所述的上行预编码信息确定方法,其中,所述MAC CE包括以下至少一项:至少一个预编码信息;至少一组预编码信息;至少一个码本子集信息的索引信息;映射到码本子集信息和/或预编码信息的bitmap信息;DCI格式标识信息,用于指示应用所述码本子集信息的DCI格式;天线面板panel标识信息;探测参考信号SRS资源集合索引信息;参考信号索引信息;传输配置指示TCI状态信息;控制资源集合池索引信息;至少一个子带索引信息;映射到子带的位图信息。
- 根据权利要求10所述的上行预编码信息确定方法,其中,所述N个子带通过所述DCI中的第二目标域指示。
- 根据权利要求12所述的上行预编码信息确定方法,其中,所述第二目标域为以下之一:频域资源分配FDRA域;用于指示子带的域。
- 根据权利要求1所述的上行预编码信息确定方法,其中,所述方 法还包括:终端接收用于指示预编码信息的MAC CE或DCI;所述终端根据所述码本子集信息,确定上行预编码信息,包括:终端根据所述MAC CE或DCI的指示,从所述码本子集信息中选择出目标预编码信息作为所述上行预编码信息。
- 根据权利要求1或14所述的上行预编码信息确定方法,其中,所述终端根据所述码本子集信息,确定上行预编码信息,包括以下至少一项:在所述终端未接收到用于指示预编码信息的MAC CE或DCI的情况下,终端将所述码本子集信息中的第一个预编码信息作为所述上行预编码信息;终端从所述码本子集信息中随机选择至少一个预编码信息作为所述上行预编码信息;终端将所述码本子集信息中的前Q个预编码信息作为所述上行预编码信息,其中,Q与子带个数有关;终端将所述码本子集信息中的所有预编码信息作为进行子带预编码的预编码信息。
- 根据权利要求1所述的上行预编码信息确定方法,其中,所述终端根据所述码本子集信息,确定上行预编码信息的方式包括以下至少一项:所述终端对所述码本子集信息中的预编码信息按照第一值进行相位偏移,得到所有子带的预编码信息;所述终端将所述码本子集信息中的预编码信息循环映射到各个子带,得到所有子带的预编码信息;所述终端根据所述码本子集信息中的第一预编码信息以及所述第一预编码信息对应的第一子带,确定将所述码本子集信息中与所述第一预编码信息相邻的预编码信息作为所述第一子带的相邻子带的预编码信 息;所述终端根据所述码本子集信息中的预编码信息按照线性插值计算方式进行计算,得到所有子带的预编码信息。
- 根据权利要求16所述的上行预编码信息确定方法,其中,所述第一值通过以下至少一项确定:高层信令;预定义;所述码本子集信息中的预编码信息;终端随机选择。
- 根据权利要求16所述的上行预编码信息确定方法,其中,所述线性插值计算方式包括以下至少一项:基于天线端口进行插值计算;基于预编码信息的行或列进行插值计算;基于离散傅里叶变换DFT波束进行幅度和/或相位的插值计算。
- 根据权利要求16-18中任一项所述的上行预编码信息确定方法,其中,所述终端根据所述码本子集信息,确定上行预编码信息的方式通过DCI中的第三目标域或第二目标比特位指示。
- 根据权利要求3、7、8、9、11、14、16-18中任一项所述的上行预编码信息确定方法,其中,所述预编码信息包括以下至少一项:预编码索引信息;预编码矩阵传输层数layer;数据流数rank;离散傅里叶变换DFT向量/波束;至少一个幅度/相位系数;映射到预编码矩阵的位图信息。
- 一种上行预编码信息确定方法,包括:网络侧设备发送第二信令,所述第二信令用于向终端指示码本子集信息。
- 根据权利要求21所述的上行预编码信息确定方法,其中,所述第二信令包括以下至少一项:无线资源控制RRC消息;媒介访问控制层控制元素MAC CE;下行控制信息DCI。
- 根据权利要求22所述的上行预编码信息确定方法,其中,所述MAC CE包括以下至少一项:至少一个预编码信息;至少一组预编码信息;至少一个码本子集信息的索引信息;映射到码本子集信息和/或预编码信息的位图bitmap信息;DCI格式标识信息,用于指示应用所述码本子集信息的DCI格式;天线面板panel标识信息;探测参考信号SRS资源集合索引信息;参考信号索引信息;传输配置指示TCI状态信息;控制资源集合池索引信息。
- 根据权利要求22所述的上行预编码信息确定方法,其中,所述DCI通过以下至少一项向终端指示码本子集信息:所述DCI中的上行探测资源指示SRI指示的SRS资源;所述DCI中的传输预编码矩阵索引TPMI域指示的TPMI;所述DCI中的第一目标域,所述第一目标域用于指示所述码本子集信息;所述DCI中的第一目标比特位,所述第一目标比特位用于指示终端 对本地的码本子集栈进行处理。
- 根据权利要求22所述的上行预编码信息确定方法,其中,所述RRC消息用于配置第一信令,所述第一信令用于指示所述码本子集信息。
- 根据权利要求25所述的上行预编码信息确定方法,其中,所述第一信令与目标资源关联,所述目标资源包括以下至少一项:DCI格式;搜索空间;SRS资源;SRS资源集合;控制资源集合;Panel;TCI状态;TCI状态池;控制资源集合池。
- 根据权利要求21所述的上行预编码信息确定方法,其中,所述码本子集信息为预定义的一组预编码信息。
- 根据权利要求21所述的上行预编码信息确定方法,其中,所述码本子集信息中包括满足以下至少一个条件的预编码信息:具有相同相干特性的预编码信息;一个或多个端口对应相同相位的预编码信息。
- 根据权利要求21所述的上行预编码信息确定方法,其中,所述码本子集信息中的P个预编码信息与N个子带关联,P、N为大于1的正整数。
- 根据权利要求29所述的上行预编码信息确定方法,其中,所述N个子带由以下方式中的至少之一指示:预定义;MAC CE;DCI。
- 根据权利要求30所述的上行预编码信息确定方法,其中,所述MAC CE包括以下至少一项:至少一个预编码信息;至少一组预编码信息;至少一个码本子集的索引信息;映射到码本子集信息和/或预编码信息的位图bitmap信息;DCI格式标识信息,用于指示应用所述码本子集信息的DCI格式;天线面板panel标识信息;探测参考信号SRS资源集合索引信息;参考信号索引信息;传输配置指示TCI状态信息;控制资源集合池索引信息;至少一个子带索引信息;映射到子带的位图信息。
- 根据权利要求30所述的上行预编码信息确定方法,其中,所述N个子带通过所述DCI中的第二目标域指示。
- 根据权利要求32所述的上行预编码信息确定方法,其中,所述第二目标域为以下之一:频域资源分配FDRA域;用于指示子带的域。
- 根据权利要求21所述的上行预编码信息确定方法,其中,所述方法还包括:向终端发送用于指示预编码信息的MAC CE或DCI。
- 根据权利要求21所述的上行预编码信息确定方法,其中,所述方法还包括:向终端发送用于指示确定上行预编码信息的方式的DCI;其中,所述DCI通过第三目标域或第二目标比特位向终端指示所述确定上行预编码信息的方式。
- 根据权利要求23、27-29、31、34中任一项所述的上行预编码信息确定方法,其中,所述预编码信息包括以下至少一项:预编码索引信息;预编码矩阵传输层数layer;数据流数rank;离散傅里叶变换DFT向量/波束;至少一个幅度/相位系数;映射到预编码矩阵的位图信息。
- 一种上行预编码信息确定装置,包括:第一获取单元,用于获取码本子集信息;第一确定单元,用于根据所述码本子集信息,确定上行预编码信息。
- 一种上行预编码信息确定装置,包括:第一发送单元,用于发送第二信令,所述第二信令用于向终端指示码本子集信息。
- 一种终端,包括处理器,存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求1至20任一项所述的上行预编码信息确定方法的步骤。
- 一种网络侧设备,包括处理器,存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求21至36任一项所述的上行预编码信息确定方法的步骤。
- 一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如权利要求1至20任一项所述的上行预编码信息确定方法的步骤,或者实现如权利要求21至36任一项所述的上行预编码信息确定方法的步骤。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111165809.6 | 2021-09-30 | ||
CN202111165809.6A CN115913296A (zh) | 2021-09-30 | 2021-09-30 | 上行预编码信息确定方法、终端及网络侧设备 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023051539A1 true WO2023051539A1 (zh) | 2023-04-06 |
Family
ID=85739470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2022/121790 WO2023051539A1 (zh) | 2021-09-30 | 2022-09-27 | 上行预编码信息确定方法、终端及网络侧设备 |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN115913296A (zh) |
WO (1) | WO2023051539A1 (zh) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109600838A (zh) * | 2017-09-30 | 2019-04-09 | 华为技术有限公司 | 一种上行子带预编码矩阵的指示方法、终端及基站 |
US20210050890A1 (en) * | 2019-08-16 | 2021-02-18 | Lg Electronics Inc. | Method and apparatus for uplink signal transmission based on codebook in a wireless communication system |
US20210050889A1 (en) * | 2019-08-16 | 2021-02-18 | Lg Electronics Inc. | Method and apparatus for uplink signal transmission based on codebook in a wireless communication system |
US20210050891A1 (en) * | 2019-08-16 | 2021-02-18 | Lg Electronics Inc. | Method and apparatus for uplink signal transmission based on codebook in a wireless communication system |
-
2021
- 2021-09-30 CN CN202111165809.6A patent/CN115913296A/zh active Pending
-
2022
- 2022-09-27 WO PCT/CN2022/121790 patent/WO2023051539A1/zh unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109600838A (zh) * | 2017-09-30 | 2019-04-09 | 华为技术有限公司 | 一种上行子带预编码矩阵的指示方法、终端及基站 |
US20210050890A1 (en) * | 2019-08-16 | 2021-02-18 | Lg Electronics Inc. | Method and apparatus for uplink signal transmission based on codebook in a wireless communication system |
US20210050889A1 (en) * | 2019-08-16 | 2021-02-18 | Lg Electronics Inc. | Method and apparatus for uplink signal transmission based on codebook in a wireless communication system |
US20210050891A1 (en) * | 2019-08-16 | 2021-02-18 | Lg Electronics Inc. | Method and apparatus for uplink signal transmission based on codebook in a wireless communication system |
Non-Patent Citations (1)
Title |
---|
INTEL CORPORATION: "Remaining details of full Tx power UL transmission", 3GPP DRAFT; R1-1908655 REMAINING DETAILS OF FULL TX POWER UL TRANSMISSION, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Prague, Czech; 20190826 - 20190830, 17 August 2019 (2019-08-17), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051765263 * |
Also Published As
Publication number | Publication date |
---|---|
CN115913296A (zh) | 2023-04-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2023011352A1 (zh) | 下行控制信息指示方法、上行信道传输秩确定方法及装置 | |
WO2023284801A1 (zh) | Tci状态确定方法、装置、终端及网络侧设备 | |
CN115175291A (zh) | 功率控制参数指示方法、终端及网络侧设备 | |
CN115278716A (zh) | 上行信道的传输参数方法、终端及网络侧设备 | |
CN114501629A (zh) | 资源配置方法、装置、设备及可读存储介质 | |
JP2024520148A (ja) | 上りリンクデータ伝送方法、上りリンクデータ伝送装置、及び可読記憶媒体 | |
WO2023280212A1 (zh) | 信道状态信息csi上报处理方法、接收方法及相关设备 | |
WO2023284796A1 (zh) | Tci状态的指示方法、装置、终端和网络侧设备 | |
WO2023051539A1 (zh) | 上行预编码信息确定方法、终端及网络侧设备 | |
CN116155445A (zh) | 上行预编码信息接收方法、指示方法、终端及网络侧设备 | |
CN115882909A (zh) | 预编码方式的指示方法、装置、终端及网络侧设备 | |
CN115622672A (zh) | Srs的传输方法、装置、终端及网络侧设备 | |
CN114585016A (zh) | 信道状态信息报告的上报、配置方法及通信设备 | |
WO2024001981A1 (zh) | 预编码矩阵的指示方法、终端及网络侧设备 | |
WO2023274120A1 (zh) | Csi-rs配置方法、csi反馈方法、装置和设备 | |
WO2023143361A1 (zh) | 能力信息上报方法、装置及终端 | |
WO2023088230A1 (zh) | 信息传输方法、装置、终端、网络侧设备及可读存储介质 | |
WO2023066333A1 (zh) | 信道状态信息csi测量方法、终端及网络侧设备 | |
WO2023169430A1 (zh) | Pusch传输方法、终端及网络侧设备 | |
CN115208526B (zh) | 信号传输方法、装置及终端 | |
WO2024000179A1 (zh) | 一种上行mimo传输的天线全相干传输码字的确定方法及其装置 | |
WO2023066341A1 (zh) | 信息配置方法、装置、网络侧设备及终端 | |
WO2023151593A1 (zh) | 预编码指示方法、装置、通信设备、系统及存储介质 | |
CN116260491A (zh) | 预编码信息指示方法、装置、通信设备、存储介质及系统 | |
CN117955529A (zh) | 预编码矩阵、sri的指示方法、终端及网络侧设备 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22874924 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |