CN112332959A

CN112332959A - Resource mapping method, resource de-mapping method and communication device

Info

Publication number: CN112332959A
Application number: CN202011177570.XA
Authority: CN
Inventors: 武传国; 唐兵; 谭定富; 是元吉
Original assignee: Shanghai Qingkun Information Technology Co Ltd
Current assignee: Shanghai Qingkun Information Technology Co Ltd
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2021-02-05

Abstract

The embodiment of the invention provides a resource mapping method, a resource de-mapping method and a communication device, which are used for reducing the hardware resource overhead of a multi-mode communication device. The communication device comprises a control unit and a resource de-mapping circuit or a resource mapping circuit which is connected with the control unit and supports a plurality of communication modes; the control unit is used for determining a channel and/or a signal to be received or sent in a current communication system, generating a configuration parameter according to the channel and/or the signal to be received or sent, and inputting the configuration parameter to the resource de-mapping circuit or the resource mapping circuit; the de-resource mapping circuit is used for performing de-resource mapping on the channel and/or the signal to be received according to the configuration parameters to acquire information carried on the channel to be received and/or the signal to be received; the resource mapping circuit is used for mapping the channel and/or signal to be sent to the resource position according to the configuration parameter.

Description

Resource mapping method, resource de-mapping method and communication device

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a resource mapping method, a resource de-mapping method, and a communications 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, for each wireless communication system, corresponding hardware modules are respectively developed, which results in very large hardware resource overhead.

Disclosure of Invention

In view of this, the present invention provides a resource mapping method, a resource de-mapping method and a communication device, so as to reduce the hardware resource overhead of the multi-mode communication device.

In one implementation, the present invention provides a communication device, located at a receiving end, where the communication device includes a control unit and a de-resource mapping circuit connected to the control unit, where the de-resource mapping circuit is a general circuit, that is, the de-resource mapping circuit supports de-resource mapping under multiple communication systems, that is, the de-resource mapping circuit is general, and de-resource mapping under each communication system can be completed on the general circuit. The control unit is used for determining a channel and/or a signal to be received in the current communication system, generating a configuration parameter according to the channel and/or the signal to be received, and inputting the configuration parameter to the de-resource mapping circuit; and the de-resource mapping circuit is used for performing de-resource mapping on the channel and/or the signal to be received according to the configuration parameters to acquire the information carried on the channel to be received and/or the signal to be received.

Correspondingly, the invention also provides a resource de-mapping method, which is executed by a receiving end, wherein the receiving end comprises a resource de-mapping circuit, and the resource de-mapping circuit supports resource de-mapping under various communication systems. The method comprises the following steps: determining a channel and/or a signal to be received under a current communication system; generating configuration parameters according to a channel and/or a signal to be received, and inputting the configuration parameters to a de-resource mapping circuit; the de-resource mapping circuit performs de-resource mapping according to the configuration parameter to acquire information carried on a channel to be received and/or a signal to be received.

Furthermore, the configuration parameter is used to enable data extraction on the resource location where the channel and/or the signal to be received is located, and the de-resource mapping circuit is used to extract data on the resource location where the channel and/or the signal to be received is located according to the configuration parameter, so as to obtain information carried on the channel to be received and/or the signal to be received.

Further, the configuration parameter includes a plurality of bits, each bit corresponds to a resource unit in the effective bandwidth, and a value of each bit is used to indicate whether to extract data in the corresponding resource unit, where a first value of the value is used to indicate to extract data in the corresponding resource unit; the de-resource mapping circuit extracts data on a resource unit corresponding to a bit taking the value as the first value so as to acquire information carried on a channel to be received and/or a signal to be received.

Further, the configuration parameter includes a first parameter, the first parameter includes a plurality of fields, each field corresponds to a resource unit group in the effective bandwidth, and a value of each field is used to indicate whether the corresponding resource unit group is effective. For the valid resource unit group, the configuration parameter further includes a second parameter, where the second parameter includes a plurality of bits, each bit corresponds to one resource unit in the valid resource unit group, and a value of each bit is used to indicate whether to extract data in the corresponding resource unit.

Further, the above resource unit is a Resource Element (RE).

In another implementation, the present invention provides a communication apparatus, located at a sending end, including a control unit and a resource mapping circuit connected to the control unit, where the resource mapping circuit is a general circuit, that is, the resource mapping circuit supports resource mapping in multiple communication systems, that is, the de-resource mapping circuit is general, and de-resource mapping in each communication system can be completed on the general circuit. The control unit is used for determining a channel and/or a signal to be sent in the current communication system, generating a configuration parameter according to the channel and/or the signal to be sent, and inputting the configuration parameter to the resource mapping circuit; and the resource mapping circuit is used for carrying out resource mapping on the channel and/or the signal to be transmitted according to the configuration parameter.

Correspondingly, the invention also provides a resource mapping method, which is executed by the sending end, wherein the sending end comprises a resource mapping circuit, and the resource mapping circuit supports resource mapping under various communication systems. The method comprises the following steps: determining a channel and/or a signal to be transmitted in a current communication system; generating configuration parameters according to a channel and/or a signal to be sent, and inputting the configuration parameters to a resource mapping circuit; and the resource mapping circuit performs resource mapping on the channel and/or the signal to be transmitted according to the configuration parameters.

Further, the configuration parameter is used to enable mapping of a resource location where a channel and/or a signal to be transmitted is located, and the resource mapping circuit is used to map the channel and/or the signal to be transmitted to the resource location according to the configuration parameter.

Further, the configuration parameter includes a plurality of bits, each bit corresponds to a resource unit in the effective bandwidth, a value of each bit is used to indicate whether resource mapping is performed on the corresponding resource unit, and a first value of the value is used to indicate that resource mapping is performed on the corresponding resource unit; the resource mapping circuit maps the channel and/or signal to be transmitted to the resource unit corresponding to the bit with the first value.

Further, the above configuration parameters include a first parameter, the first parameter includes a plurality of fields, each field corresponds to one resource unit group in the effective bandwidth, and a value of each field is used to indicate whether the corresponding resource unit group is effective. For the effective resource unit group, the configuration parameter further includes a second parameter, where the second parameter includes a plurality of bits, each bit corresponds to a resource unit in the effective resource unit group, and a value of each bit is used to indicate whether resource mapping is performed on the corresponding resource unit.

Further, the above resource unit is a Resource Element (RE).

Therefore, in the above resource mapping method, the resource de-mapping method, and the communication device, the control unit is used to identify the channels and/or signals to be resource mapped in different communication systems, or the channels and/or signals to be resource de-mapped, and generate the configuration parameters according to the identified channels and/or signals, so as to provide the configuration parameters to the general resource mapping circuit or the resource de-mapping circuit, and the resource mapping circuit or the resource de-mapping circuit performs resource mapping or resource de-mapping according to the configuration parameters. Therefore, the control unit generates the configuration parameters to control the universal hardware circuit to realize the support of resource mapping or resource de-mapping of various communication systems, 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.

Drawings

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 illustrating 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 flowchart illustrating a process of controlling de-resource mapping according to an embodiment of the present invention;

FIG. 5 is a resource diagram according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of another resource provided by the embodiment of the present invention;

FIG. 7 is a flowchart illustrating another control resource mapping according to an embodiment of the present invention

FIG. 8 is a diagram of a general circuit according to an embodiment of the present invention;

FIG. 9 is a diagram illustrating operations performed by a general circuit according to an embodiment of the present invention;

fig. 10 is a schematic diagram of a method for de-mapping resources according to an embodiment of the present invention;

fig. 11 is a schematic diagram of a resource mapping method 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. The general configuration parameter is applicable to each communication system, and can be used for controlling resource de-mapping and/or resource mapping of various communication systems.

Taking the resource de-mapping as an example, the control unit 310 is configured to determine a channel and/or a signal to be received in the current communication system, generate a configuration parameter according to the channel and/or the signal to be received, and input the configuration parameter to the resource de-mapping circuit 320, where the channel and/or the signal to be received is the channel and/or the signal to be subjected to the resource de-mapping. 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 may be used to enable data extraction on the resource location where the channel and/or 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 signal to be received is located according to the configuration parameters to obtain information on the channel and/or signal to be received. For example, for each resource unit, it is determined whether a channel and/or 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., a configuration parameter 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. 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.

Taking resource mapping as an example, the control unit 310 is configured to determine a channel and/or a signal to be sent in a current communication system, generate a configuration parameter according to the channel and/or the signal to be sent, and input the configuration parameter to the resource mapping circuit 320, where the channel and/or the signal to be sent is a channel and/or a signal to be subjected to resource mapping. The resource mapping circuit 320 is configured to perform resource mapping on a channel and/or a signal to be transmitted according to the configuration parameter.

The configuration parameter may be used to enable mapping of a resource location of a channel and/or a signal to be transmitted, so that the resource mapping circuit 320 maps the channel and/or the signal to be transmitted to the resource location according to the configuration parameter. For example, for each resource unit, it is determined whether a channel and/or 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 mapping on the resource unit is enabled, that is, a configuration parameter is generated, and the configuration parameter is used to enable mapping on the resource position where the channel and/or signal to be transmitted is located.

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.

It can be seen that the above de-resource mapping circuit or resource mapping circuit 320 is a general module, and does not need to identify different channels and signals in different communication systems, but the control unit 310 identifies channels and/or signals to be de-resource mapped in different communication systems, and provides configuration parameters to the de-resource mapping circuit or resource mapping circuit 320, and the de-resource mapping circuit or resource mapping circuit 320 performs de-resource mapping or resource mapping according to the configuration parameters. 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.

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 effective Bandwidth may be a system Bandwidth, a carrier Bandwidth, or a current working Bandwidth of a receiving end or a transmitting end, for example, a Bandwidth Part (BWP) in an NR system. The Resource unit may be one Resource Element (RE), and each Resource Element corresponds to one Frequency domain Resource unit and one time domain Resource unit, where the Frequency domain Resource unit may be a subcarrier, and the time domain Resource unit may be an Orthogonal Frequency Division Multiplexing (OFDM) symbol. With the evolution of the technology, the time domain resource unit and the frequency domain resource unit may change, but the application of the scheme in the new resource unit is not changed. 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 a resource unit in the effective bandwidth, and a value of each bit is used to indicate whether data is to be mapped on the corresponding resource unit, or whether data is mapped on the corresponding resource unit, that is, whether data on the corresponding resource unit is extracted. Taking the example of resource mapping solution indicated by the configuration parameter as an example, in one implementation, when the value of the bit is "1", the data in the corresponding resource unit is extracted, and when the value of the bit is "0", the data in 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 configuration parameter indicates resource mapping and the like, and the value of the bit is used for indicating whether data is to be mapped on the corresponding resource unit, namely whether the data is mapped on the corresponding resource unit. The examples of values are similar to those above and are not described in detail.

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 above configuration parameters are configured with bits for each resource unit, so the overhead of the configuration parameters is large, which results in a large amount of parameters transferred between the control unit 310 and the general-purpose circuit 320. In another implementation, multiple resource units are treated as a group of resource units, taking into account the efficiency of parameter transfer between the control unit 310 and the generic circuitry 320. Firstly, whether each resource unit group is effective is set; specifically, if any resource unit in the group includes data to be mapped or mapped with data thereon, the resource unit group is valid; and configuring a domain for each resource unit group, wherein the domain is used for indicating whether the corresponding resource unit group is valid or not, and then obtaining a domain graph, the domain graph comprises a plurality of domains, each domain corresponds to one resource unit group, and the domain is used for indicating whether the corresponding resource unit group is valid or not. For the effective resource unit group, further configuring whether the resource unit in the group is effective; specifically, if data to be mapped or data is mapped on a resource unit, the resource unit is valid; configuring a bit for each resource unit, wherein the bit is used for indicating whether the corresponding resource unit is valid or not, and then obtaining a bit bitmap, the bit bitmap comprises a plurality of bits, each bit corresponds to one resource unit, and the bit is used for indicating whether the corresponding resource unit is valid or not.

At this time, the configuration parameter includes a first parameter, the first parameter corresponds to the above domain map, and includes a plurality of domains, each domain corresponds to one resource unit group, and the domain is used for indicating whether the corresponding resource unit group is valid. For the valid resource unit group, the configuration parameter further includes a second parameter, where the second parameter corresponds to the bit map, and includes a plurality of bits, each bit corresponds to a resource unit, and the bit is used to indicate whether the corresponding resource unit is valid. In this way, the amount of parameters passed can be reduced for invalid resource unit groups.

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.

The above first parameter or the field in the field map may include one bit, or may include a plurality of bits.

The resource unit group can be divided for each frequency domain resource unit, namely each resource unit group corresponds to one frequency domain resource unit and a continuous A time domain resource units; or each time domain resource unit can be divided, that is, each resource unit group corresponds to one time domain resource unit and B consecutive frequency domain resource units; or, the time domain and the frequency domain are divided simultaneously, that is, each resource unit group corresponds to a time domain resource unit and B consecutive frequency domain resource units. Wherein, A and B are positive integers greater than 1, and can be specifically set as required. For example, A can be any value from 3 to 14, or can be an integral multiple of 6 or 7; for example B may be an integer multiple of 6.

The operations performed by the above control unit 310 are further described below. Please refer to fig. 4, which is a flowchart illustrating a process for controlling de-resource mapping according to an embodiment of the present invention. As shown in fig. 4, the control unit 310 may perform the following operations:

s410: and determining a channel and/or a signal to be received according to the current communication system and the current communication state, wherein the channel and/or the signal to be received is the channel and/or the signal to be subjected to resource de-mapping.

The communication state is the communication state of the receiving end, for example, when the receiving end is UE, the UE is in a state of starting up and needing 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 receives the state of uplink data from the PUSCH.

S420: generating configuration parameters according to a channel and/or a signal to be received;

for example, each RE in the effective bandwidth may be configured for each time domain resource unit, respectively, to obtain a bitmap corresponding to the time domain resource unit, where each bit of the bitmap corresponds to one RE in the time domain resource unit, if data on the RE needs to be extracted by resource de-mapping, the corresponding bit is set to 1, otherwise, the bit is set to 0. For another example, each RE in the effective time domain resource unit may be configured for each frequency domain resource unit, respectively, to obtain a bitmap corresponding to the frequency domain resource unit, where each bit of the bitmap corresponds to one RE in the frequency domain resource unit, if data on the RE needs to be extracted by de-resource mapping, the corresponding bit is set to 1, otherwise, the bit is set to 0.

The following description is made with reference to the accompanying drawings.

Please refer to fig. 5, which is a resource diagram according to an embodiment of the present invention. As shown in fig. 5, 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 LTE communicationIn the signaling scheme, in a normal Cyclic Prefix (CP), one slot includes 7 OFDM symbols, and in an extended CP, one slot includes 6 OFDM symbols, so that 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. 5 illustrates 14 OFDM symbols in the time domain, including R₀The small lattice of (a) indicates that data is 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. In the effective bandwidth, for each OFDM symbol index S, each RE in the effective bandwidth is configured, so that the length of the effective bandwidth is w (S), and 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. Taking the bitmap of the RE corresponding to the OFDM symbol index S being "0" as an example, the obtained bitmap is: [ 000001000001000001000001 ], where bitmap is from left to right, and the RE indices decrease sequentially, then data on 1 st, 7 th, 13 th and 19 th REs are to be extracted.

Please refer to fig. 6, which is a schematic resource diagram according to another embodiment of the present invention. As shown in fig. 6, the abscissa, the ordinate, and the meaning of each small grid are the same as those in fig. 5, and are not described again. Here, the division is performed for each time domain resource unit. As shown in fig. 6, the resource unit group is an RE group, the time domain resource unit is an OFDM symbol, and the frequency domain resource unit is a subcarrier. For each OFDM symbol S, the RE groups are divided according to the granularity of consecutive b (S) subcarriers, and then one RE group includes consecutive b (S) REs, corresponding to one OFDM symbol S and consecutive b (S) subcarriers. For example, the OFDM symbol S is 0 and B (0) is 6. Each RE group in the effective bandwidth (length w(s) and unit RE) is represented by 1 bit, and a domain map with length m(s) is obtained, and the domain map is a bitmap. If the RE group is valid, the RE group corresponds to bit position 1, otherwise 0 is set. Assuming that the effective bandwidth is 100 RBs, where each RB corresponds to 12 REs, then M (0) corresponding to OFDM symbol index 0 is 200, and the domain map with length M (0) is: [ 11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111 ], wherein the right side of the domain diagram corresponds to a lower RE group index, which may be the lowest subcarrier index, the highest subcarrier index, or any one of the subcarrier indexes within the RE group.

Further, for an RE group indicated as valid in the domain map, each RE in the RE group corresponds to a bit, if a certain RE is valid, the corresponding bit position is 1, otherwise, 0 is set, and a bitmap with length B(s) is obtained, as shown in fig. 6, for OFDM symbol 0, the bitmap with length B (0) is: 000001, where the right side of bitmap corresponds to the lower subcarrier index.

The valid RE refers to an RE on which data is to be mapped or mapped, and the invalid RE refers to an RE on which data is not mapped or is not mapped. The valid RE group refers to a RE group including at least one valid RE, and the invalid RE group refers to a RE group not including any valid RE. The data may include information on a channel to be received or transmitted and/or a signal to be received or transmitted. Here, the value of the bit is "1" to indicate the valid RE group and the valid RE, and the value is "0" to indicate the invalid RE group and the invalid RE, or vice versa, which is not limited by the present invention.

In the above domain map and the bitmap, 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 in the present invention.

S430: the data storage information to be de-resource mapped and the configuration parameters are configured to the de-resource mapping circuit 320.

For example, in the process of configuring the data storage information to be subjected to resource de-mapping, the information received by the radio frequency device is stored as the input of the resource de-mapping circuit 320, wherein the configuration parameters are input as parameters, and the data storage information to be subjected to resource de-mapping is input as data. The parameters are parsed by the de-resource mapping circuit 320 to extract data according to the data storage information. Another operation performed by the above control unit 310 is further described below. Please refer to fig. 7, which is a flowchart illustrating another control resource mapping according to an embodiment of the present invention. As shown in fig. 7, the control unit 310 may perform the following operations:

s710: determining a channel and/or a signal to be sent according to the current communication system and the current communication state, wherein the channel and/or the signal to be sent is the channel and/or the signal to be resource mapped;

s720: generating configuration parameters according to a channel and/or a signal to be sent;

s730: the data storage information to be resource mapped and the configuration parameters are configured to the resource mapping circuit 320.

The resource mapping and the de-resource mapping are inverse processes, and similar implementations can be achieved, and specific reference may be made to the above embodiments, which are not described again.

The structure and operation of the above general circuit 320 are described further below. Please refer to fig. 8, which is a diagram illustrating a general circuit 320 according to an embodiment of the present invention. As shown in fig. 8, 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. 9 to obtain configuration parameters (S910); acquiring data storage information to be subjected to resource mapping/resource de-mapping (S920); data is mapped/extracted according to the configuration parameters (S930). 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. Invention of the invention

The resource mapping and the de-resource mapping are inverse processes to each other, the mapping resources of each channel and/or signal in different communication systems follow the regulations of respective communication protocols, and the description of the configuration parameters is the same as that in the de-resource mapping in the above embodiments. For example, the configuration parameter is used to enable mapping on a resource location where a channel and/or a signal to be transmitted is located, and the resource mapping circuit is used to map the channel and/or the signal to be transmitted to the resource location according to the configuration parameter.

The above step S930 is described below by taking the resource de-mapping as an example.

In one implementation, the configuration parameter includes a plurality of bits, each bit corresponds to a resource unit in the effective bandwidth, a value of each bit is used to indicate whether to extract data in the corresponding resource unit, and a first value of the value of each bit is used to indicate to extract data in the corresponding resource unit. At this time, in step S930, the parameter analyzing circuit 324 traverses each bit of the configuration parameter, extracts data in the resource unit corresponding to the bit taking the first value, and skips data extraction in the bit taking the second value.

For example, referring to fig. 5, for each OFDM symbol S of the effective bandwidth, the data storage information to be de-resource mapped is processed according to the configuration parameters. And traversing the bitmap if the configuration parameter is the bitmap of the RE with the length of W (S), if the bit is 1, extracting data of a corresponding position or mapping the data of the corresponding position, and otherwise, skipping, wherein the data can comprise information on a channel to be received and/or a signal to be received.

In another implementation, the configuration parameter includes a first parameter, the first parameter includes a plurality of fields, each field corresponds to a resource unit group in the effective bandwidth, and a value of each field is used to indicate whether the corresponding resource unit group is effective. And for the effective resource unit group, the configuration parameter further includes a second parameter, the second parameter includes a plurality of bits, each bit corresponds to a resource unit in the effective resource unit group, and the value of each bit is used to indicate whether to extract data in the corresponding resource unit. At this time, in the above step S930, the parameter parsing circuit 324 traverses each domain of the first parameter, determines a valid resource unit group, and skips parsing of an invalid resource unit group; and traversing the bit of the second parameter of the effective resource unit group, extracting the data in the effective resource unit, and skipping the data extraction in the invalid resource unit.

For example, referring to fig. 6, for each OFDM symbol S of the effective bandwidth, the RE groups are divided according to the granularity of consecutive b (S) subcarriers; and then traversing the field of the first parameter, determining the effective RE groups in the RE groups, and skipping the processing of the ineffective RE groups. And for the effective RE group, traversing the bit of the second parameter, determining the effective RE in the effective RE group, extracting the data on the effective RE, and skipping the data extraction on the ineffective RE.

Thus, the number of resource unit groups or resource units that the de-resource mapping circuit 320 needs to resolve is reduced, and the processing efficiency of the de-resource mapping circuit 320 is improved.

Further, referring to fig. 10, an embodiment of the present invention further provides a method for de-resource mapping, which is executed by a receiving end, and includes the following steps:

s1010: determining a channel and/or a signal to be received under a current communication system;

s1020: generating configuration parameters according to a channel and/or a signal to be received, and inputting the configuration parameters to a de-resource mapping circuit;

s1030: the de-resource mapping circuit performs de-resource mapping according to the configuration parameter to acquire information carried on a channel to be received and/or a signal to be received.

Similarly, referring to fig. 11, an embodiment of the present invention further provides a resource mapping method, which is executed by a sending end, and includes the following steps:

s1110: determining a channel and/or a signal to be transmitted in a current communication system;

s1120: generating configuration parameters according to a channel and/or a signal to be sent, and inputting the configuration parameters to a resource mapping circuit;

s1130: and the resource mapping circuit performs resource mapping on the channel and/or the signal to be transmitted according to the configuration parameters.

The steps are described in detail with reference to the above embodiments, and are not repeated herein.

It can be seen that in the resource mapping method, the resource de-mapping method, and the communication apparatus in the embodiments of the present invention, the control unit is unified to identify the channels and/or signals to be de-resource mapped in different communication systems, or the channels and/or signals to be resource mapped, and accordingly generate the configuration parameters to provide the configuration parameters to the general circuit, and the circuit performs de-resource mapping or resource mapping according to the configuration parameters. 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.

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 resource demapping may be integrated together, the same control unit implements generation of configuration parameters, and the same or separate hardware circuit implements the resource mapping circuit and the resource demapping 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

1. A communication device, located at a receiving end, includes a control unit and a de-resource mapping circuit connected to the control unit, the de-resource mapping circuit supports de-resource mapping under multiple communication systems, wherein,

the control unit is used for determining a channel and/or a signal to be received in the current communication system, generating a configuration parameter according to the channel and/or the signal to be received, and inputting the configuration parameter to the de-resource mapping circuit;

the de-resource mapping circuit is configured to perform de-resource mapping on the channel and/or the signal to be received according to the configuration parameter, and acquire information and/or the signal carried on the channel.

2. The apparatus according to claim 1, wherein the configuration parameter is used to enable data extraction at a resource location where the channel and/or signal to be received is located, and the de-resource mapping circuit is used to extract data at the resource location where the channel and/or signal to be received is located according to the configuration parameter, so as to obtain the information and/or the signal carried on the channel.

3. The apparatus of claim 1, wherein the configuration parameter comprises a plurality of bits, each bit corresponds to a resource unit in the effective bandwidth, and a value of each bit is used to indicate whether to extract data in the corresponding resource unit, and a first value of the values is used to indicate to extract data in the corresponding resource unit;

the de-resource mapping circuit extracts data in resource units corresponding to the bits with the first values to obtain information and/or the signals carried on the channel.

4. The apparatus of claim 1, wherein the configuration parameter comprises a first parameter, wherein the first parameter comprises a plurality of fields, each field corresponds to a group of resource units within the effective bandwidth, and wherein a value of each field is used to indicate whether the corresponding group of resource units is valid, and wherein the configuration parameter further comprises a second parameter for the valid group of resource units, wherein,

the second parameter comprises a plurality of bits, each bit corresponds to one resource unit in the effective resource unit group, and the value of each bit is used for indicating whether to extract data on the corresponding resource unit.

5. A communication device, located at a transmitting end, includes a control unit and a resource mapping circuit connected to the control unit, the resource mapping circuit supports resource mapping under multiple communication systems, wherein,

the control unit is used for determining a channel and/or a signal to be sent in a current communication system, generating a configuration parameter according to the channel and/or the signal to be sent, and inputting the configuration parameter to the resource mapping circuit;

and the resource mapping circuit is used for performing resource mapping on the channel and/or the signal to be sent according to the configuration parameters.

6. The apparatus of claim 5, wherein the configuration parameter is used to enable mapping of resource locations of the channels and/or signals to be transmitted, and the resource mapping circuit is used to map the channels and/or signals to be transmitted to the resource locations according to the configuration parameter.

7. The apparatus of claim 5, wherein the configuration parameter comprises a plurality of bits, each bit corresponds to a resource unit in the effective bandwidth, and a value of each bit is used to indicate whether resource mapping is performed on the corresponding resource unit, and a first value of the values is used to indicate that resource mapping is performed on the corresponding resource unit;

and the resource mapping circuit maps the channel and/or the signal to be transmitted to a resource unit corresponding to a bit taking a first value as a value.

8. The apparatus of claim 5, wherein the configuration parameter comprises a first parameter, wherein the first parameter comprises a plurality of fields, each field corresponds to a group of resource units within the effective bandwidth, and wherein a value of each field is used to indicate whether the corresponding group of resource units is valid, and wherein the configuration parameter further comprises a second parameter for the valid group of resource units, wherein,

the second parameter includes a plurality of bits, each bit corresponds to a resource unit in the effective resource unit group, and the value of each bit is used to indicate whether to perform resource mapping on the corresponding resource unit.

9. A method for de-resource mapping is implemented by a receiving end, the receiving end includes a de-resource mapping circuit, the de-resource mapping circuit supports de-resource mapping under multiple communication systems, the method includes:

determining a channel and/or a signal to be received under a current communication system;

generating configuration parameters according to the channel and/or the signal to be received, and inputting the configuration parameters to a de-resource mapping circuit;

and the de-resource mapping circuit performs de-resource mapping according to the configuration parameters to acquire the information and/or the signals carried on the channel.

10. A resource mapping method is characterized in that the resource mapping method is executed by a sending end, the sending end comprises a resource mapping circuit, the resource mapping circuit supports resource mapping under a plurality of communication systems, and the method comprises the following steps:

determining a channel and/or a signal to be transmitted in a current communication system;

generating configuration parameters according to the channel and/or signal to be sent, and inputting the configuration parameters to a resource mapping circuit;

and the resource mapping circuit performs resource mapping on the channel and/or the signal to be sent according to the configuration parameters.