CN112332960A - Resource mapping method, resource mapping de-method, control method thereof and related device - Google Patents

Resource mapping method, resource mapping de-method, control method thereof and related device Download PDF

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Publication number
CN112332960A
CN112332960A CN202011180276.4A CN202011180276A CN112332960A CN 112332960 A CN112332960 A CN 112332960A CN 202011180276 A CN202011180276 A CN 202011180276A CN 112332960 A CN112332960 A CN 112332960A
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resource
effective
parameter
temporary
mapping
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CN112332960B (en
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武传国
是元吉
谭定富
唐兵
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Shanghai Qingkun Information Technology Co Ltd
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Shanghai Qingkun Information Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated

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  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention provides a resource mapping method, a resource mapping de-method, a control method thereof and a related device, which aim to realize high-efficiency resource mapping or resource mapping de-by using low hardware overhead. The method for controlling resource mapping or resource de-mapping comprises the following steps: dividing effective resources by taking TRBs as granularity to obtain N TRBs; generating a first parameter and a second parameter according to a channel and/or a signal to be sent or received; and outputting the first parameter and the second parameter to control resource mapping or resource de-mapping.

Description

Resource mapping method, resource mapping de-method, control method thereof and related device
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method for resource mapping and resource demapping, a control method thereof, and a related apparatus.
Background
With the development of wireless communication technology, the application of wireless networks is more and more extensive, and wireless access technology is continuously evolving. For example, the evolution from second generation (2G) communication technologies to fourth generation (4G) communication technologies has progressed, and the era of fifth generation (5G) communication technologies has come. The 4G communication technology may also be referred to as Long Term Evolution (LTE) communication technology, and the 5G communication technology may also be referred to as New Radio (NR) communication technology.
In order to support the evolution of wireless technologies, while being compatible with the past wireless technologies, wireless communication apparatuses tend to be multi-mode, i.e. support multiple wireless communication systems simultaneously, for example, support LTE and NR systems, i.e. follow the communication protocols of LTE and NR; the wireless communication device may even support certain proprietary formats or comply with certain proprietary protocols.
At present, in the resource mapping and de-resource mapping process of the multi-mode channel device, a large hardware overhead is required. Therefore, how to implement resource mapping and de-resource mapping with lower hardware overhead with higher efficiency has become an urgent problem to be solved.
Disclosure of Invention
In view of the above, the present invention provides a method for resource mapping and resource demapping, a control method thereof, and a related apparatus, so as to implement resource mapping or resource demapping with higher efficiency by using lower hardware overhead.
In one implementation, the present invention provides a method of controlling resource mapping or de-resource mapping, the method comprising: dividing effective resources by taking temporary resource blocks as granularity to obtain N temporary resource blocks, wherein each temporary resource block comprises M resource elements, each resource element corresponds to a time domain resource unit and a frequency domain resource unit, the temporary resource blocks correspond to continuous A time domain resource units and continuous B frequency domain resource units, N, A and B are positive integers, and M is the product of A and B; generating a first parameter according to a channel and/or a signal to be sent or received, where the first parameter includes N bits, each bit corresponds to a temporary resource block, and a value of the bit is used to indicate whether the corresponding temporary resource block is an effective temporary resource block, where the effective temporary resource block includes at least one effective resource element, data or data to be mapped is mapped on the effective resource element, and the data includes information and/or the signal carried on the channel; for the effective temporary resource block, generating a second parameter according to the channel and/or signal to be sent or received, where the second parameter includes M bits, each bit corresponds to one resource element in the effective temporary resource block, and a value of the bit is used to indicate whether the corresponding resource element is the effective resource element; and outputting the first parameter and the second parameter to control resource mapping or resource de-mapping.
Correspondingly, the invention provides a method for mapping or de-mapping resources, which comprises the following steps: determining that the effective resources comprise N temporary resource blocks, wherein each temporary resource block comprises M resource elements, each resource element corresponds to a time domain resource unit and a frequency domain resource unit, the temporary resource blocks correspond to continuous A time domain resource units and continuous B frequency domain resource units, N, A and B are positive integers, and M is the product of A and B; acquiring a first parameter, wherein the first parameter comprises N bits, each bit corresponds to a temporary resource block, and the value of the bit is used for indicating whether the corresponding temporary resource block is an effective temporary resource block or not, wherein the effective temporary resource block comprises at least one effective resource element, data or data to be mapped are mapped on the effective resource element, and the data comprises information carried on a channel to be sent or received and/or a signal to be sent or received; determining the effective temporary resource block according to the first parameter; for the effective temporary resource block, obtaining a second parameter, where the second parameter includes M bits, each bit corresponds to a resource element in the effective temporary resource block, and a value of the bit is used to indicate whether a corresponding resource element is the effective resource element; and mapping the channel and/or the signal to be transmitted to the effective resource element according to the second parameter, or extracting the channel and/or the signal to be received from the effective resource element.
In another implementation, the present invention provides a communication apparatus for controlling resource mapping or de-resource mapping. The communication device comprises a processing unit and an output unit, wherein: the processing unit is configured to divide the effective resources by taking the temporary resource blocks as a granularity to obtain N temporary resource blocks, where each temporary resource block includes M resource elements, each resource element corresponds to one time domain resource unit and one frequency domain resource unit, the temporary resource block corresponds to a consecutive a time domain resource units and a consecutive B frequency domain resource units, N, a, and B are positive integers, and M is a product of a and B; the processing unit is further configured to generate a first parameter according to a channel and/or a signal to be sent or received, where the first parameter includes N bits, each bit corresponds to a temporary resource block, and a value of the bit is used to indicate whether a corresponding temporary resource block is an effective temporary resource block, where the effective temporary resource block includes at least one effective resource element, data or data to be mapped is mapped on the effective resource element, and the data includes information and/or the signal carried on the channel; for the effective temporary resource block, the processing unit is further configured to generate a second parameter according to the channel and/or signal to be sent or received, where the second parameter includes M bits, each bit corresponds to one resource element in the effective temporary resource block, and a value of the bit is used to indicate whether the corresponding resource element is the effective resource element; the output unit is used for outputting the first parameter and the second parameter so as to control resource mapping or resource de-mapping.
In yet another implementation, the present invention provides a communication device for controlling resource mapping or de-resource mapping, the communication device comprising a processor and a memory, the processor invoking a program in the memory to perform the above method of controlling resource mapping or de-resource mapping.
In yet another implementation, the present invention provides a storage medium storing a program that, when executed by a processor, causes the processor to perform the above method of controlling resource mapping or de-resource mapping.
In yet another implementation, the present invention provides a communication apparatus for resource mapping or de-resource mapping. The communication device comprises a parameter analysis circuit and an interface, wherein the interface is used for acquiring a first parameter and a second parameter, the first parameter comprises N bits, each bit corresponds to a temporary resource block, the value of the bit is used for indicating whether the corresponding temporary resource block is an effective temporary resource block, the effective temporary resource block comprises at least one effective resource element, data or data to be mapped is mapped on the effective resource element, and the data comprises information carried on a channel to be sent or received and/or a signal to be sent or received; the second parameter comprises M bits, each bit corresponds to a resource element in the effective temporary resource block, and the value of the bit is used for indicating whether the corresponding resource element is the effective resource element; the parameter analysis circuit is configured to determine that the effective resource includes N temporary resource blocks, where each temporary resource block includes M resource elements, each resource element corresponds to one time domain resource unit and one frequency domain resource unit, the temporary resource block corresponds to a consecutive a time domain resource units and a consecutive B frequency domain resource units, N, a, and B are positive integers, and M is a product of a and B; the parameter analysis circuit is further configured to determine the effective temporary resource block according to the first parameter; and for the effective temporary resource block, mapping a channel and/or a signal to be transmitted to the effective resource element according to the second parameter, or extracting the channel and/or the signal to be received from the effective resource element.
Therefore, the method for controlling resource mapping or resource de-mapping controls resource mapping or resource de-mapping of different communication systems by using the universal parameters, so that different communication systems can perform resource mapping or resource de-mapping based on the universal parameters, and when a circuit for resource mapping and resource de-mapping is designed, the communication systems do not need to be distinguished for design, thereby saving hardware resources. And the parameter transmission of the invalid temporary resource block is reduced by the division of the temporary resource block as the granularity, so that the size of the parameter is reduced, the cost of the parameter transmission is reduced, the parameter analysis efficiency is improved, and the processing efficiency of the whole de-resource mapping or resource mapping is improved.
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The following description of the embodiments of the present invention will be made with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present invention;
FIG. 2 is a diagram of a conventional multimode receiver
Fig. 3 is a schematic diagram of a communication device according to an embodiment of the present invention;
FIG. 4 is a resource diagram according to an embodiment of the present invention;
FIG. 5 is a diagram illustrating operations performed by a control unit according to an embodiment of the present invention;
fig. 6 is a schematic diagram illustrating a method for controlling de-resource mapping according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of another resource provided by the embodiment of the present invention;
fig. 8 is a diagram illustrating a method for controlling resource mapping according to an embodiment of the present invention;
FIG. 9 is a diagram of a general circuit according to an embodiment of the present invention;
FIG. 10 is a diagram illustrating operations performed by a general circuit according to an embodiment of the present invention;
fig. 11 is a schematic diagram of a method for resource mapping or resource de-mapping according to an embodiment of the present invention;
fig. 12 is a schematic diagram of another communication device according to an embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort. For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product.
Please refer to fig. 1, which is a diagram illustrating a communication system according to an embodiment of the present invention. As shown in fig. 1, the communication system includes AN Access Network (AN) 110 and a Core Network (Core Network, CN)120, and a User Equipment (UE) 130 accesses to a wireless Network through the AN 110 and communicates with other networks, such as a Data Network (Data Network), through the CN 120.
The AN may also be referred to as a Radio Access Network (RAN), and the device on the AN side may be referred to as AN device or a RAN device, and may also be referred to as a base station. The names of the different communication systems are different, for example, in a Long Term Evolution (LTE) system, the communication system may be referred to as an evolved Node B (eNB), and in a 5G system, the communication system may be referred to as a next generation Node B (gnb). AN apparatus may also be a Centralized Unit (CU), a Distributed Unit (DU), or include a CU and a DU.
In order to improve the communication efficiency of the UE, the wireless communication technology is continuously evolving, and has evolved from the original 2G technology to the 5G technology. In the technical evolution process, scenes that new and old technologies coexist often exist in the existing network, and in order to simultaneously support multiple wireless communication systems, a wireless communication device is often multimode. At present, for each wireless communication system, corresponding hardware modules are respectively developed, which results in very large hardware resource overhead.
For example, a receiver is disposed at a receiving end of communication (UE side in downlink communication, and AN side in uplink communication), and taking a multimode receiver as AN example, please refer to fig. 2, which shows a schematic diagram of AN existing multimode receiver. As shown in fig. 2, for each communication system, the multimode receiver is independently provided with a demapping subsystem, for example, a demapping subsystem 210 for an LTE system, a demapping subsystem 220 for an NR system, and a demapping subsystem 230 for a private protocol system. Of course, a demapping subsystem for 2G or 3G communication systems may also be provided, which is not shown here for the sake of clarity. Only LTE, NR and proprietary protocols are described as examples.
Each demapping subsystem is provided with an independent hardware module, and each hardware module designs a demapping sub-module of a channel and a signal supported by a communication system according to the communication system supported by the hardware module. For example, the demapping subsystem 210 supports the LTE system, and is provided with demapping sub-modules of various channels and signals in the LTE communication system, such as a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), a Channel State Information Reference Signal (CSI-RS), a Demodulation Reference Signal (DMRS), a Sounding Reference Signal (SRS), a Physical Broadcast Channel (PBCH), a Physical Control Format Indicator Channel (PCFICH), a Physical Hybrid automatic Indicator Channel (Physical Hybrid Indicator Channel, PHICH), a Physical Downlink Control Channel (PDCCH), an Enhanced Physical Downlink Control Channel (Enhanced Physical Downlink Shared Channel), a Physical Downlink Shared Channel (PDCCH), PDSCH), Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH), and Physical Random Access Channel (PRACH). The demapping subsystem 220 supports the NR system, and is provided with demapping sub-modules of various channels and signals in the NR communication system, for example, a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), a Channel State Information Reference Signal (CSI-RS), a Demodulation Reference Signal (DMRS), a Phase Tracking Reference Signal (PTRS), a Sounding Reference Signal (SRS), a Physical Broadcast Channel (PBCH), a Physical Downlink Control Channel (PDCCH), a Physical Downlink Shared Channel (Physical Downlink Channel, PDSCH), a Physical Uplink Shared Channel (PUSCH), a Physical Uplink Control Channel (PUCCH), PRACH), etc.
Each demapping subsystem indicates, in a software manner, a channel and/or a signal for which the corresponding hardware module needs to perform demapping of resources, and correspondingly, the hardware module calls the corresponding demapping sub-module of the resources according to the indication to perform demapping of different signals and channels. For example, the demapping subsystem 210 indicates, in a software manner, that a hardware module needs to perform demapping on the PDCCH, and the hardware module of the demapping subsystem 210 calls a demapping sub-module of the PDCCH to implement demapping on the PDCCH, so as to obtain information on the PDCCH.
Since channels and/or signals supported by different communication systems may be different and the channels and/or signals may follow different manners in resource mapping, in the prior art, demapping subsystems of respective communication systems are designed independently. And for the private wireless communication protocol, the demapping subsystem is also customized according to the private protocol.
Therefore, in the existing wireless communication device, the demapping subsystems are respectively developed aiming at different wireless communication systems, so that the hardware overhead is very large; further, if the customized requirements of the proprietary wireless communication protocol are to be supported, further hardware overhead is required. Similarly, for a multimode transmitter at a transmitting end (AN side may be AN side in downlink communication, and a side may be a UE side in uplink communication), the same problem is faced by independently developing a resource mapping subsystem for each communication system.
In view of the above problems, the embodiments of the present invention adopt a general hardware circuit to support resource mapping or resource de-mapping of different communication systems, and use software to distinguish the communication systems, determine a channel and/or a signal to be currently subjected to resource mapping or resource de-mapping in a corresponding communication system, generate configuration parameters according to the channel and/or the signal to be currently subjected to resource mapping or resource de-mapping, and provide the configuration parameters to the general hardware circuit, so that the general hardware circuit completes the resource mapping or resource de-mapping functions of different communication systems according to the configuration parameters.
Please refer to fig. 3, which is a schematic diagram of a communication device according to an embodiment of the present invention. The communication device comprises a control unit 310 and a general circuit 320, wherein the control unit 310 is connected with the general circuit 320, and the connection can be a signal connection, namely, information can be exchanged with each other. When the communication apparatus is located at the receiving end, the general circuit 320 may be a de-resource mapping circuit configured to perform de-resource mapping according to the control signaling of the control unit 310. When the communication apparatus is located at the transmitting end, the general circuit 320 may be a resource mapping circuit, configured to perform resource mapping according to the control signaling of the control unit 310. The receiving end may also be a transmitting end, for example, the UE may be the transmitting end during uplink communication to transmit uplink data to the AN device, and may also be the receiving end during downlink communication to receive downlink data transmitted by the AN device; for another example, the AN apparatus may be a receiving end to receive uplink data transmitted by the UE during uplink communication, or may be a transmitting end to transmit downlink data to the UE during downlink communication. Thus, the general purpose circuitry 320 may also include both resource mapping circuitry and de-resource mapping circuitry.
The control unit 310 is configured to generate a control signaling, where the control signaling is a general configuration parameter to control the general circuit 320 to perform de-resource mapping and/or resource mapping.
Taking resource de-mapping as an example, the control unit 310 determines a channel and/or a signal to be received in the current communication system; for each resource unit, determining whether a channel and/or a signal to be received is mapped on the resource unit; when it is determined that the channel and/or signal to be received is mapped on the resource unit, data extraction on the resource unit is enabled, i.e., control signaling is generated for enabling data extraction on at least one resource unit.
Specifically, the control unit 310 may determine a channel and/or a signal to be received according to the current communication system and the current communication state, where the channel and/or the signal to be received is a channel and/or a signal to be subjected to resource demapping. The communication state is the communication state of the receiving end, for example, when the receiving end is UE, the UE is powered on and is in a state of needing to perform cell search; or the UE requests uplink resources from the AN equipment and is in a state of detecting the PDCCH to acquire the uplink authorization. For another example, the receiving end is AN device, and the AN device schedules the UE to perform uplink transmission and is in a state of receiving uplink data from the PUSCH.
Taking resource mapping as an example, the control unit 310 determines a channel and/or a signal to be sent in the current communication system; for each resource unit, determining whether a channel and/or a signal to be transmitted is mapped on the resource unit; when it is determined that the channel and/or signal to be transmitted is mapped on the resource unit, the resource mapping on the resource unit is enabled, that is, control signaling is generated, and the control signaling is used for enabling the resource mapping on at least one resource unit.
Specifically, the control unit 310 may determine a channel and/or a signal to be sent according to the current communication system and the current communication state, where the channel and/or the signal to be sent is a channel and/or a signal to be resource mapped. The communication state is the communication state of the sending end, for example, when the sending end is UE, the UE sends uplink data to the AN device by using the PUSCH resource allocated to the UE by the AN device, and at this time, the channel to be sent is PUSCH. If the sending end is AN AN device, the AN device sends uplink authorization or downlink resource allocation to the UE through the PDCCH, and the channel to be sent is a PDCCH channel at this moment; and then, for example, the AN device sends a reference signal, for example, CSI-RS, to the UE, so that the UE performs channel measurement, where the signal to be sent is the reference signal.
The above resource units are resource units in the effective bandwidth in the current communication system, and the receiving end can determine whether to map the channel and/or signal to be received in each resource unit according to the channel and/or signal to be received in the current communication system, so as to enable resource de-mapping in the resource unit. The sending end can determine whether to map the channel and/or the signal to be sent in each resource unit according to the channel and/or the signal to be sent in the current communication system, so that the resource mapping in the resource unit is enabled.
The receiving end or the transmitting end enables data extraction or resource mapping in a resource unit through a control signaling, the control signaling is a general configuration parameter, and after the general configuration parameter is configured to the general hardware circuit 320, the general hardware circuit 320 can be controlled to perform de-resource mapping or resource mapping.
In the following, the communication device is located at the receiving end, and the general circuit is a de-resource mapping circuit, which are similar to each other in the implementation and are not described again.
The control unit 310 determines a channel and/or a signal to be received in the current communication system, generates a configuration parameter according to the channel and/or the signal to be received, and outputs the configuration parameter to the de-resource mapping circuit 320, where the channel and/or the signal to be received is the channel and/or the signal to be de-resource mapped. The de-resource mapping circuit 320 is configured to perform de-resource mapping on a channel and/or a signal to be received according to the configuration parameter, and acquire information carried on the channel and/or the signal to be received.
The above configuration parameters are general parameters, and each communication system can use the parameters to control the de-resource mapping circuit 320. Optionally, the configuration parameter is used to enable data extraction on a resource location where the channel and/or the signal to be received is located, so that the de-resource mapping circuit 320 extracts data on the resource location where the channel and/or the signal to be received is located according to the configuration parameter to obtain information on the channel and/or the signal to be received.
For example, after the UE is powered on, cell search needs to be performed, and at this time, the UE detects the PSS and the SSS to determine the cell identity. When the UE operates in LTE mode, the control unit 310 determines that the signal to be received includes PSS and SSS; alternatively, when the UE operates in the NR mode, the control unit 310 determines that the signals to be received include PSS, SSS, and PBCH. For another example, the UE needs to detect the CSI-RS for channel measurement, and the control unit 310 determines that the signal to be received includes the CSI-RS. For another example, the UE detects the PDCCH to obtain uplink or downlink scheduling information, and then performs uplink transmission on the PUSCH resource indicated by the uplink scheduling information, or receives downlink data on the PDSCH resource indicated by the downlink scheduling information, at this time, the control unit 310 determines that the channel to be received includes the PDCCH, and when performing downlink data reception, the channel to be received also includes the PDSCH.
Then, the control unit 310 generates configuration parameters according to the channel and/or signal to be received, and inputs the configuration parameters to the de-resource mapping circuit 320. The de-resource mapping circuit 320 performs de-resource mapping on the channel and/or signal to be received according to the configuration parameters, and obtains information carried on the channel and/or signal to be received. For example, if the control unit 310 determines that the signals to be received are PSS, SSS, and PBCH, resource locations of the PSS, SSS, and PBCH are determined according to a PSS, SSS, and PBCH resource mapping manner specified by the NR protocol, and then configuration parameters enabling data extraction at the resource locations are generated. The de-resource mapping circuit 320 extracts data at the resource locations according to the configuration parameters to obtain information on the PSS, SSS, and PBCH. Other channels and/or signals are similar and will not be described in detail herein.
It can be seen that, by using the above control method for de-resource mapping, the de-resource mapping circuit 320 may identify the channel and/or signal to be de-resource mapped in different communication systems without identifying different channels and signals in different communication systems, and the control unit 310 identifies the channel and/or signal to be de-resource mapped in different communication systems, and provides the configuration parameter to the de-resource mapping circuit 320, and the de-resource mapping circuit 320 performs de-resource mapping according to the configuration parameter. Therefore, the support of resource mapping of multiple communication systems can be realized through a universal hardware circuit, and a large amount of hardware overhead is saved. In addition, with the evolution of technology and the requirement of proprietary protocols, the design of the communication device is more beneficial to expanding new protocol requirements, and has better expandability compared with the prior art.
In one implementation, the above control unit 310 may be implemented in software, i.e., the functions of the control unit 310 are stored in a memory through the formation of program codes, which are called by a processor to implement the functions of the control unit 310. Therefore, when the subsequent evolution is carried out to support a new communication system or a private protocol, the hardware structure can not be changed, the software can be updated to complete the expansion, and the hardware cost is further saved.
In one implementation, the configuration parameters may be implemented in the form of a bitmap (bitmap). That is, the configuration parameter includes a plurality of bits, each bit corresponds to one resource unit in the effective bandwidth, and a value of each bit is used to indicate whether data is mapped or not on the corresponding resource unit. The value of the bit of the receiving end is used to indicate whether data is mapped on the corresponding resource unit, that is, whether to extract the data on the corresponding resource unit, for example, when the value of the bit is "1", the data on the corresponding resource unit is extracted, and when the value of the bit is "0", the data on the corresponding resource unit is not extracted; conversely, when the value of the bit is "0", the data in the corresponding resource unit is extracted, and when the value of the bit is "1", the data in the corresponding resource unit is not extracted. The resource de-mapping circuit 320 extracts data in the resource unit corresponding to the bit having the first value, where the data includes information carried on a channel to be received and/or a signal to be received. The sending end is similar to the above, and the value of the bit of the sending end is used to indicate whether to map data on the corresponding resource unit, i.e. whether to map the data on the corresponding resource unit. The value taking example is similar to that of the receiving end and is not described again.
As can be seen, the control unit 310 enables data extraction or mapping on a resource unit through a configuration parameter, where the configuration parameter includes a plurality of bits, each bit corresponds to one resource unit in the effective bandwidth, and a value of each bit is used to indicate whether to extract or map data on the corresponding resource unit.
The effective Bandwidth may be a system Bandwidth, a carrier Bandwidth, or a current operating Bandwidth of the receiving end, for example, a Bandwidth Part (BWP) in the NR system. The Resource unit may be a Resource Element (RE), where each Resource Element corresponds to a Frequency domain Resource unit and a time domain Resource unit, where the Frequency domain Resource unit is a subcarrier, and the time domain Resource unit is an Orthogonal Frequency Division Multiplexing (OFDM) symbol.
For example, for each OFDM symbol index S, each RE in the effective bandwidth is configured, and the length of the effective bandwidth is w (S), so that a bitmap (bitmap) with a length of w (S) is obtained. If the data on the RE needs to be extracted through resource mapping solution, the corresponding bit is set to 1, otherwise, the bit is set to 0.
Please refer to fig. 4, which is a resource diagram according to an embodiment of the present invention. As shown in fig. 4, the abscissa represents the time domain t and the ordinate represents the frequency domain f. Each small lattice represents one RE, corresponding to one OFDM symbol in the time domain and one subcarrier in the frequency domain. A Resource Block (RB) is formed by an OFDM symbol in a slot (slot) and 12 subcarriers in the frequency domain, and the RB may also be referred to as a Physical Resource Block (PRB). For example, in the LTE communication system, one slot includes 7 OFDM symbols in a normal Cyclic Prefix (CP), one slot includes 6 OFDM symbols in an extended CP, and one RB pair includes 14 OFDM symbols or 12 OFDM symbols. For another example, in the NR communication scheme, one RB corresponds to one slot, and one slot includes 14 OFDM symbols in the normal CP, and one slot includes 12 OFDM symbols in the extended CP. Fig. 4 illustrates 14 OFDM symbols in the time domain. Including R in the figure0The small lattice of (a) indicates that data is mapped or to be mapped thereon.
For simplicity, it is assumed that the effective bandwidth corresponds to two RBs (or one RB pair) in the frequency domain, where each RB corresponds to 12 subcarriers for one OFDM symbol. Therefore, within the effective bandwidth, each OFDM symbol corresponds to 12 REs, and the bitmap of the RE corresponding to the OFDM symbol index S being "0" is: [ 000001000001000001000001 ] for example, where bitmap is from left to right, and RE indexes are sequentially decreased, data on 1 st, 7 th, 13 th and 19 th REs are to be extracted or mapped.
In consideration of the problem of efficiency of parameter transmission between the control unit 310 and the general-purpose circuit 320, the above configuration parameters are configured with bits for each resource unit, so that the overhead of the configuration parameters is relatively large, and the amount of parameters directly transmitted by the control unit 310 and the general-purpose circuit 320 is too large. Therefore, another method for controlling resource mapping or resource de-mapping is provided in embodiments of the present invention, where a plurality of resource units are used as a group, and whether each group is valid is first set, and then whether resource units in the group are valid is configured. Since the resource mapping pattern defined by the wireless communication protocol has strong regularity, the parameter transmission amount between the control unit 310 and the general circuit 320 can be greatly reduced by adopting the mode, and the processing efficiency of the whole de-resource mapping or resource mapping is improved.
In this implementation, the control unit 310 may also enable data extraction or mapping on resource units by configuring parameters. At this time, the configuration parameter may include a first sub-parameter and a second sub-parameter, where the first sub-parameter includes a plurality of bits, each bit corresponds to one resource unit group within the effective bandwidth, and a value of each bit is used to indicate whether the resource unit group is effective. For the valid resource unit group, the configuration parameter further includes a second sub-parameter, where the second sub-parameter includes a plurality of bits, each bit corresponds to a resource unit in the resource unit group, and a value of each bit is used to indicate whether to extract or map data in the corresponding resource unit.
The operation of the above control unit 310 is described below with reference to the drawings. Referring to fig. 5, the control unit 310 is configured to perform the following operations:
s510: the control unit 310 configures the data storage information to be resource mapped or resource de-mapped to the general circuit 320;
s520: the control unit 310 inputs configuration parameters to the general-purpose circuit 320.
In the process of configuring the data storage information of the to-be-demapped resource, the information received by the radio frequency device is stored as an input of the general circuit 320, wherein the configuration parameter is input as a parameter, and the data storage information of the to-be-demapped resource is input as data. The parameters are parsed by the generic circuitry 320 to extract data from the data storage information. In the process of configuring the data storage information to be resource mapped, the data to be mapped is used as the data input of the general circuit 320, and the configuration parameters are used as the parameters input of the general circuit 320; the parameters are parsed by the generic circuitry 320, which in turn maps the data according to the data storage information.
There is no sequential limitation between steps S510 and S520, and either step may be executed first, or both steps may be executed simultaneously, which is not limited in the present invention.
Referring to fig. 6, in an implementation, the embodiment of the present invention provides a method for controlling de-resource mapping, where the method controls de-resource mapping through configuration parameters, which can be understood as an implementation of step S520 above. As shown in fig. 6, the method includes:
s621: and dividing the effective resources by taking a Temporary Resource Block (TRB) as granularity to obtain N TRBs.
Each TRB includes M REs, each RE corresponds to one time domain resource unit and one frequency domain resource unit, the time domain resource unit may be an OFDM symbol, and the frequency domain resource unit may be a subcarrier. Each TRB corresponds to a consecutive a time domain resource units and a consecutive B frequency domain resource units, where the consecutive a time domain resource units and the consecutive B frequency domain resource units constitute the M REs, that is, M is the product of a and B. N, A and B are positive integers.
S622: first parameters are generated according to a channel and/or signal to be received.
The first parameter includes N bits, each bit corresponds to one TRB, and a value of each bit is used to indicate whether the corresponding TRB is a valid TRB, where the valid TRB includes valid REs on which data is mapped, and the data includes information carried on the above to-be-received channel and/or a to-be-received signal.
S623: for each valid TRB, second parameters are generated according to the channel and/or signal to be received.
The second parameter includes M bits, each bit corresponds to an RE in the valid TRB, and a value of each bit is used to indicate whether the corresponding RE is a valid RE.
S624: and outputting the first parameter and the second parameter to control the resource de-mapping. I.e. the configuration parameters that the control unit configures to the generic circuit comprise the first parameter and the second parameter.
The effective resources refer to two-dimensional RE resources in an effective bandwidth and an effective time domain, and the effective time domain may include a plurality of OFDM symbols. Taking NR as an example, if a normal CP is configured, there are 14 OFDM symbols in a slot, but actually when scheduling is performed, the scheduled OFDM symbols may be different, for example, the number of any OFDM symbol in 3-14 is possible, and the effective time domain herein may refer to the number of actually scheduled OFDM symbols.
In the above, by defining one TRB, the effective bandwidth (assuming that the length is W, and the unit is RE) and the two-dimensional RE resources in the effective OFDM symbol are divided according to the TRB as the granularity, so as to obtain N TRBs. The effective bandwidth and the two-dimensional RE resources in the effective OFDM symbol are effective resources, and in the effective resources, each TRB is represented by 1 bit field identifier (i.e., bit), so as to obtain a bit field map with a length of N, i.e., the first parameter. For the bit field identification of each TRB, if data needing to be extracted does not exist in the TRB, setting the bit field identification to be 0; the reverse is also possible; if there is data to be extracted in the TRB, the bit field identification is set to 1. Referring to fig. 7, the position of the effective RE is shown as R0 in fig. 7. For simplicity, the effective bandwidth is still set to 2 RBs, each OFDM symbol corresponds to 12 REs, and let B be 6 and a be 7. Then the length N is 4, the bit-field map for the effective bandwidth is: [1111] with the right side of the bitmap corresponding to the lower TRB index. In one implementation, the TRB indices are ordered from low to high in the time domain first and from low to high in the frequency domain last. The invention is not limited to this, and may also be arranged in other ways, for example, the frequency domain is from low to high first, and then the time domain is from low to high; or the time domain is firstly from high to low, and then the frequency domain is from high to low; or the frequency domain is from high to low firstly, and then the time domain is from high to low; or from low to high in the time domain first and from high to low in the frequency domain later. As long as the control unit and the de-resource mapping circuit can resolve following the same principles.
Then, a bit-domain map of the valid TRB is configured, that is, the above second parameter includes M bits, each bit corresponds to one RE in the valid TRB, and a value of each bit is used to indicate whether the corresponding RE is a valid RE.
Alternatively, the bitmap of the active TRB may be a two-dimensional bitmap, such as a two-dimensional bitmap of B × a, or a two-dimensional bitmap of a × B. If the data on a certain RE needs to be extracted, setting the bit field identifier to be 1, otherwise, setting the bit field identifier to be 0; the reverse is also possible. Taking fig. 7 as an example, the bit field map of dimension B × a is [ 0000001; 0000000; 0000000; 0000100, respectively; 0000000; 0000000 ], where the right side of the bit-field diagram corresponds to the lower subcarrier index and OFDM index.
In the above bit field diagrams of the first parameter and the second parameter, the right side corresponds to the lower index as an example, and in other implementations, the right side may correspond to the higher index, that is, the left side corresponds to the lower index, which is not limited by the present invention.
Continuing with fig. 8, in one implementation, the embodiment of the present invention provides a method for controlling resource mapping, which can be understood as an implementation of step S520 above by configuring a parameter to control resource mapping. As shown in fig. 8, the method includes:
s821: and dividing the effective resources by taking the TRBs as granularity to obtain N TRBs.
The TRB is described in the same manner as the above embodiments, and is not described in detail here.
S822: first parameters are generated according to a channel and/or signal to be transmitted.
The first parameter includes N bits, each bit corresponds to a TRB, and a value of each bit is used to indicate whether the corresponding TRB is a valid TRB, where the valid TRB includes valid REs on which data to be mapped is to be mapped, and the data includes information carried on the channel to be transmitted and/or a signal to be transmitted.
S823: for each active TRB, a second parameter is generated based on the channel and/or signal to be transmitted.
The second parameter includes M bits, each bit corresponds to an RE in the valid TRB, and a value of each bit is used to indicate whether the corresponding RE is a valid RE.
S824: the first parameter and the second parameter are output to control the resource mapping. I.e. the configuration parameters that the control unit configures to the generic circuit comprise the first parameter and the second parameter.
The resource mapping and the resource demapping are inverse processes, and the detailed description refers to the above embodiments and is not repeated.
The structure and operation of the above general circuit 320 are described further below. Please refer to fig. 9, which is a diagram illustrating a general circuit 320 according to an embodiment of the present invention. As shown in fig. 9, the general circuit 320 includes a first storage element 321, a second storage element 322, and an interface 323, wherein the interface 323 is used for receiving the data storage information and the configuration parameters from the control unit 310, and the first storage element 321 and the second storage element 322 are respectively used for buffering the data storage information and the configuration parameters. The general circuit 320 further includes a parameter analyzing circuit 324, where the parameter analyzing circuit 324 performs the operations shown in fig. 10 to obtain configuration parameters (S1010); acquiring data storage information to be subjected to resource mapping/resource de-mapping (S1020); data is mapped/extracted according to the configuration parameters (S1030). Where "/" indicates that either or both of de-resource mapping and resource mapping may be performed. Optionally, the general circuit 320 may further include a third storage element 325 for storing the result of the de-resource mapping. The first storage element 321, the second storage element 322 and the third storage element 325 may be implemented by the same memory or different memories, and the present invention is not limited thereto. The type of the memory is not limited, and may be, for example, a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above step S1020 is described below by taking resource de-mapping as an example.
For example, referring to fig. 4, for each OFDM symbol S of the effective bandwidth, processing data storage information to be de-resource mapped or resource mapped according to a configuration parameter, for example, if the configuration parameter is bitmap of the RE with the length w (S), traversing the bitmap, if bit is 1, extracting data at a corresponding position or mapping data at a corresponding position, otherwise skipping, where the data may include information on a channel to be received or to be sent, and/or a signal to be received or to be sent.
In consideration of the problem of the efficiency of parameter transmission between the control unit 310 and the general circuit 320, the embodiment of the present invention further provides a resource mapping or de-resource mapping method, which performs de-resource mapping or resource mapping according to the configuration parameters, which can be understood as an implementation of the above step S1030. As shown in fig. 11, the method includes:
s1110: it is determined that the effective resource includes N TRBs.
The TRBs are the same as those described above, and each RE corresponds to one time domain resource unit and one frequency domain resource unit, and each TRB corresponds to a consecutive a time domain resource units and a consecutive B frequency domain resource units, where N, a, and B are positive integers, and M is the product of a and B.
S1120: a first parameter is obtained.
The first parameter includes N bits, each bit corresponds to one TRB, and a value of each bit is used to indicate whether the corresponding TRB is an effective TRB, where the effective TRB includes an effective RE on which data is to be mapped, and the data includes information carried on a channel to be transmitted and/or a signal to be transmitted; or, data is mapped on the valid RE, and the data includes information carried on a channel to be received and/or a signal to be received.
S1130: based on the first parameter, a valid TRB is determined.
S1140: for a valid TRB, a second parameter is obtained.
The second parameter is the same as the above description, and includes M bits, each bit corresponds to one RE in the valid TRB, and the value of each bit is used to indicate whether the corresponding RE is a valid RE;
s1150: and mapping the channel and/or signal to be transmitted to the effective RE or extracting the channel and/or signal to be received from the effective RE according to the second parameter.
Taking the resource de-mapping as an example, the general circuit 320 obtains the data storage information and the configuration parameters to be de-resource mapped, where the configuration parameters include the first parameter and the second parameter.
The general purpose circuitry 320 obtains the TRB size to determine the TRBs within the active resources. For example, the TRB corresponds to a consecutive a time domain resource units and B consecutive frequency domain resource units, and the general circuit 320 obtains the size of the TRB by obtaining the values of a and B. The values of a and B may be configured to the general purpose circuit 320 by the control unit 310, which may flexibly configure the TRB size to cope with different channel and signal requirements. Alternatively, the values of a and B may be preset in the general circuit 320, which may further reduce the information transfer between the control unit 310 and the general circuit 320. Then, the general circuit 320 parses the valid TRBs according to the first parameter, skips the non-valid TRBs, i.e. traverses the bit field maps of N TRBs in the valid resource, and further parses the RE inside a TRB if the bit field identifier corresponding to a TRB is 1; and if the bit field mark corresponding to a certain TRB is 0, skipping the resolution of the TRB. Analyzing the RE inside the TRB may be performed according to a second parameter, that is, for the TRB, traversing the configured bit domain map of the valid TRB, and if a certain bit is "1", extracting data on the RE corresponding to the bit according to the data storage information to be subjected to resource mapping; if a bit is "0," then data extraction on the RE to which the bit corresponds is skipped.
The resource mapping and the de-resource mapping are inverse processes to each other, and the mapping resources of each channel and/or signal in different communication systems follow the regulations of respective communication protocols. Therefore, the structure of the configuration parameters in the resource mapping process, the generation of the configuration parameters in the resource mapping process by the control unit 310, and the process of performing resource mapping by using the configuration parameters in the resource mapping process by the general circuit 320 are the same as the above embodiments, and are not described herein again.
It can be seen that, in the method for controlling resource mapping or resource de-mapping provided in the embodiment of the present invention, the control unit may uniformly identify channels and/or signals to be de-resource mapped in different communication systems, or channels and/or signals to be resource mapped, and generate configuration parameters according to the identified channels and/or signals to provide general configuration parameters to the general circuit, and the general circuit performs resource mapping or resource de-mapping according to the configuration parameters. Therefore, the support of resource mapping or resource de-mapping of various communication systems can be realized through a universal hardware circuit, and a large amount of hardware overhead is saved. In addition, with the evolution of technology and the requirement of proprietary protocols, the design of the communication device is more beneficial to expanding new protocol requirements, and has better expandability compared with the prior art.
Furthermore, configuration parameters are designed in a resource unit grouping mode, so that the parameter transmission quantity between the control unit and the universal circuit can be greatly reduced, and the processing efficiency of the whole de-resource mapping or resource mapping is improved.
Correspondingly, the embodiment of the invention also provides a communication device, which is used for controlling the resource mapping and/or controlling the resource de-mapping. The communication device may comprise means for implementing the above method of controlling resource mapping and/or controlling de-resource mapping, for example comprising a processing unit for generating configuration parameters and an output unit for outputting the configuration parameters to perform a method of controlling de-resource mapping or resource mapping, for example as shown in fig. 6 or fig. 8, to control de-resource mapping and/or resource mapping by the configuration parameters comprising the first parameter and the second parameter.
The processing unit may be, for example, a processor and the output unit may be, for example, an interface.
Please refer to fig. 12, which is a diagram illustrating a communication device according to an embodiment of the present invention. As shown in fig. 12, the communication apparatus 1200 is located at a receiving end or a transmitting end, or at a UE or AN device, and includes a processor 1210, AN interface 1220 and a memory 1230, wherein the processor 1210 is configured to call a program stored in the memory 1230 to perform the method for controlling resource mapping and/or the method for controlling de-resource mapping provided by the above embodiments, and the interface 1220 is configured to communicate with a general-purpose circuit to provide configuration parameters to the general-purpose circuit. The data storage information may be stored in the processor 1230, or may be stored in another processor, which is not limited herein.
Correspondingly, the embodiment of the invention also provides a storage medium, wherein a program is stored in the storage medium, and the program is called by the processor to enable the processor to execute the above method for controlling resource mapping and/or controlling resource de-mapping.
The receiving end may also be a transmitting end, and the transmitting end may also be a receiving end, for example, a UE serving as the transmitting end in uplink communication may serve as the receiving end in downlink communication; the receiving end AN apparatus in the downlink communication may serve as a transmitting end in the uplink communication. Therefore, for the UE or the AN device, the above apparatus for implementing resource mapping and the apparatus for implementing de-resource mapping may be integrated together, the same control unit implements the generation of the configuration parameters, and the same or AN independent hardware circuit implements the resource mapping circuit and the de-resource mapping circuit.
The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. A method for controlling resource mapping or resource demapping, comprising:
dividing effective resources by taking temporary resource blocks as granularity to obtain N temporary resource blocks, wherein each temporary resource block comprises M resource elements, each resource element corresponds to a time domain resource unit and a frequency domain resource unit, the temporary resource blocks correspond to continuous A time domain resource units and continuous B frequency domain resource units, N, A and B are positive integers, and M is the product of A and B;
generating a first parameter according to a channel and/or a signal to be sent or received, where the first parameter includes N bits, each bit corresponds to a temporary resource block, and a value of the bit is used to indicate whether the corresponding temporary resource block is an effective temporary resource block, where the effective temporary resource block includes at least one effective resource element, data or data to be mapped is mapped on the effective resource element, and the data includes information and/or the signal carried on the channel;
for the effective temporary resource block, generating a second parameter according to the channel and/or signal to be sent or received, where the second parameter includes M bits, each bit corresponds to one resource element in the effective temporary resource block, and a value of the bit is used to indicate whether the corresponding resource element is the effective resource element;
and outputting the first parameter and the second parameter to control resource mapping or resource de-mapping.
2. The method of claim 1, wherein the second parameter is a two-dimensional bitmap of B A or A B.
3. A method for resource mapping or resource demapping, comprising:
determining that the effective resources comprise N temporary resource blocks, wherein each temporary resource block comprises M resource elements, each resource element corresponds to a time domain resource unit and a frequency domain resource unit, the temporary resource blocks correspond to continuous A time domain resource units and continuous B frequency domain resource units, N, A and B are positive integers, and M is the product of A and B;
acquiring a first parameter, wherein the first parameter comprises N bits, each bit corresponds to a temporary resource block, and the value of the bit is used for indicating whether the corresponding temporary resource block is an effective temporary resource block or not, wherein the effective temporary resource block comprises at least one effective resource element, data or data to be mapped are mapped on the effective resource element, and the data comprises information carried on a channel to be sent or received and/or a signal to be sent or received;
determining the effective temporary resource block according to the first parameter;
for the effective temporary resource block, obtaining a second parameter, where the second parameter includes M bits, each bit corresponds to a resource element in the effective temporary resource block, and a value of the bit is used to indicate whether a corresponding resource element is the effective resource element;
and mapping the channel and/or the signal to be transmitted to the effective resource element according to the second parameter, or extracting the channel and/or the signal to be received from the effective resource element.
4. The method of claim 3, wherein the second parameter is a two-dimensional bitmap of B A or A B.
5. An apparatus for controlling resource mapping or de-resource mapping, comprising a processing unit and an output unit, wherein:
the processing unit is configured to divide the effective resources by taking the temporary resource blocks as a granularity to obtain N temporary resource blocks, where each temporary resource block includes M resource elements, each resource element corresponds to one time domain resource unit and one frequency domain resource unit, the temporary resource block corresponds to a consecutive a time domain resource units and a consecutive B frequency domain resource units, N, a, and B are positive integers, and M is a product of a and B;
the processing unit is further configured to generate a first parameter according to a channel and/or a signal to be sent or received, where the first parameter includes N bits, each bit corresponds to a temporary resource block, and a value of the bit is used to indicate whether a corresponding temporary resource block is an effective temporary resource block, where the effective temporary resource block includes at least one effective resource element, data or data to be mapped is mapped on the effective resource element, and the data includes information and/or the signal carried on the channel;
for the effective temporary resource block, the processing unit is further configured to generate a second parameter according to the channel and/or signal to be sent or received, where the second parameter includes M bits, each bit corresponds to one resource element in the effective temporary resource block, and a value of the bit is used to indicate whether the corresponding resource element is the effective resource element;
the output unit is used for outputting the first parameter and the second parameter so as to control resource mapping or resource de-mapping.
6. An apparatus for controlling resource mapping or de-resource mapping, comprising a processor and a memory, the processor calling a program in the memory to perform the method of claim 1 or 2.
7. A storage medium, characterized in that a program is stored which, when executed by a processor, causes the processor to carry out the method according to claim 1 or 2.
8. An apparatus for resource mapping or resource demapping, comprising a parameter parsing circuit and an interface, wherein,
the interface is used for acquiring a first parameter and a second parameter,
the first parameter comprises N bits, each bit corresponds to a temporary resource block, and the value of the bit is used for indicating whether the corresponding temporary resource block is an effective temporary resource block, wherein the effective temporary resource block comprises at least one effective resource element, data or data to be mapped is mapped on the effective resource element, and the data comprises information carried on a channel to be transmitted or received and/or a signal to be transmitted or received;
the second parameter comprises M bits, each bit corresponds to a resource element in the effective temporary resource block, and the value of the bit is used for indicating whether the corresponding resource element is the effective resource element;
the parameter analysis circuit is configured to determine that the effective resource includes N temporary resource blocks, where each temporary resource block includes M resource elements, each resource element corresponds to one time domain resource unit and one frequency domain resource unit, the temporary resource block corresponds to a consecutive a time domain resource units and a consecutive B frequency domain resource units, N, a, and B are positive integers, and M is a product of a and B;
the parameter analysis circuit is further configured to determine the effective temporary resource block according to the first parameter; and for the effective temporary resource block, mapping a channel and/or a signal to be transmitted to the effective resource element according to the second parameter, or extracting the channel and/or the signal to be received from the effective resource element.
9. The apparatus of claim 8, wherein the second parameter is a two-dimensional bitmap of B A or A B.
10. A communication apparatus comprising an apparatus according to claim 5 or 6 and an apparatus according to claim 8 or 9.
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