CN109802786B

CN109802786B - User equipment and channel measuring method

Info

Publication number: CN109802786B
Application number: CN201711147008.0A
Authority: CN
Inventors: 吴晔; 金黄平; 毕晓艳
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-11-17
Filing date: 2017-11-17
Publication date: 2021-09-07
Anticipated expiration: 2037-11-17
Also published as: WO2019095973A1; CN109802786A

Abstract

The embodiment of the invention provides user equipment, which comprises a transceiver module, a receiving module and a sending module, wherein the transceiver module is used for receiving configuration information, and the configuration information is used for configuring the PRG size associated with channel measurement; and the processing module is used for determining a measurement mechanism according to the configuration information. The embodiment of the invention also provides a channel measuring method. According to the technical scheme provided by the embodiment of the invention, the measurement mechanism is indicated by the configuration information for configuring the PRG size associated with the channel measurement, so that a special signaling does not need to be set for indicating the measurement mechanism, and the control overhead is reduced.

Description

User equipment and channel measuring method

Technical Field

The present invention relates to channel measurement technologies, and in particular, to a user equipment and a channel measurement method.

Background

The transmission effect of wireless communication is closely related to the channel environment, and therefore, it is visually important for wireless communication to select transmission parameters adapted to the channel environment. For example, when the channel environment is better, a more aggressive Modulation and Coding Scheme (MCS) may be selected to improve the transmission throughput; when the channel environment is poor, a more conservative MCS may be selected to improve the transmission robustness.

In general, the channel environment can be determined by means of channel measurements. Taking downlink channel measurement as an example, a user equipment (for example, but not limited to, a smart phone, etc.) receives a downlink reference signal sent by an access device (for example, but not limited to, a base station, etc.), and determines a downlink channel environment according to the downlink reference signal and informs the access device, so that the access device selects an appropriate transmission parameter.

The result of the Channel measurement may be generally represented by Channel State Information (CSI). For example, CSI may include, for example and without limitation, one or more of the following: a Channel Quality Indicator (CQI), a Precoding Matrix Indicator (PMI), a Precoding Type Indicator (PTI), a CSI reference signal Resource Indicator (CRI), a Rank Indicator (RI), and other information.

Generally speaking, channel measurement needs to be performed according to a specific measurement mechanism, and the measurement mechanism is different, and the measurement process and the measurement result are usually different. In a Long Term Evolution (LTE) system, an access device notifies a measurement mechanism to a user equipment, so that the user equipment performs channel measurement according to the measurement mechanism. For example, in the LTE system, the access device sends Radio Resource Control (RRC) signaling to the ue, where the signaling includes a special field, i.e. reporting mode, to indicate the measurement mechanism.

However, setting a special field in the RRC message to indicate the above measurement mechanism necessarily increases signaling overhead, thereby affecting transmission efficiency. Therefore, a mechanism is still lacked, which can reduce the signaling overhead caused by notifying the above measurement mechanism.

Disclosure of Invention

In view of the foregoing, there is a need for a ue that can reduce signaling overhead caused by a notification measurement mechanism.

Meanwhile, a channel measurement method is provided, which can reduce signaling overhead brought by a notification measurement mechanism.

According to a first aspect of embodiments of the present invention, there is provided a user equipment, including:

a transceiver module, configured to receive configuration information, where the configuration information is used to configure a precoding resource block group PRG size associated with channel measurement;

and the processing module is used for determining a measurement mechanism according to the configuration information.

According to a second aspect of the embodiments of the present invention, there is provided a user equipment, including:

a transceiver for receiving configuration information for configuring a PRG size associated with channel measurement;

a processor for determining a measurement mechanism according to the configuration information.

In particular implementations, the processor may be configured to perform, for example and without limitation, baseband related processing, and the transceivers may be configured to perform, for example and without limitation, radio frequency transceiving, respectively. The above devices may be respectively disposed on separate chips, or at least a part or all of the devices may be disposed on the same chip, for example, the transceiver may be disposed on the transceiver chip. For another example, the processor may be further divided into an analog baseband processor and a digital baseband processor, wherein the analog baseband processor may be integrated with the transceiver on the same chip, and the digital baseband processor may be disposed on a separate chip. With the development of integrated circuit technology, more and more devices can be integrated on the same chip, for example, a digital baseband processor can be integrated on the same chip with various application processors (such as, but not limited to, a graphics processor, a multimedia processor, etc.). Such a Chip may be referred to as a System on Chip. Whether each device is separately located on a different chip or integrated on one or more chips often depends on the specific needs of the product design. The embodiment of the present invention does not limit the specific implementation form of the above device.

According to a third aspect of the embodiments of the present invention, there is provided a channel measurement method, including:

receiving configuration information for configuring a PRG size associated with channel measurement;

and determining a measurement mechanism according to the configuration information.

According to a fourth aspect of the embodiments of the present invention, there is provided an access device, including:

the processing module is configured to generate configuration information, where the configuration information is used to configure a PRG size associated with channel measurement, and the PRG size is invalid, so that a user equipment determines that a measurement mechanism is closed-loop measurement according to the PRG size invalidity.

And the transceiver module is used for transmitting the configuration information.

According to a fifth aspect of the embodiments of the present invention, there is provided an access device, including:

a processor, configured to generate configuration information, where the configuration information is used to configure a PRG size associated with channel measurement, and the PRG size is invalid, so that a user equipment determines that a measurement mechanism is closed-loop measurement according to the PRG size invalidity.

A transceiver for transmitting the configuration information.

According to a sixth aspect of the embodiments of the present invention, there is provided a channel measurement method, including:

and generating configuration information, wherein the configuration information is used for configuring a PRG size associated with channel measurement, and the PRG size is invalid, so that the user equipment can determine that a measurement mechanism is closed-loop measurement according to the PRG size invalidity.

And sending the configuration information.

According to a seventh aspect of embodiments of the present invention, there is provided a processor configured to perform the above-mentioned various methods. In the course of executing these methods, the processes related to sending and receiving configuration information in the above-mentioned methods may be understood as a process of outputting configuration information by a processor, and a process of receiving input configuration information by a processor. In particular, upon outputting the configuration information, the processor outputs the configuration information to the transceiver for transmission by the transceiver. Further, the configuration information may need to be processed after being output by the processor before reaching the transceiver. Similarly, when the processor receives input configuration information, the transceiver receives the configuration information and inputs it to the processor. Further, after the transceiver receives the configuration information, the configuration information may need to be further processed before being input to the processor.

As such, the operations related to the processor, such as transmitting, sending and receiving, may be more generally understood as operations related to the processor output and receiving input than operations directly performed by the rf circuitry and antenna, if not specifically stated or if not contradicted by their actual role or inherent logic in the related description.

In a specific implementation process, the processor may be a processor dedicated to execute the methods, or may be a processor that executes computer instructions in a memory to execute the methods, such as a general-purpose processor, where the processor and the memory are included in a communication device, such as the communication device, which may be the user equipment described above, or the access device described above. The Memory may be a non-transitory (non-transitory) Memory, such as a Read Only Memory (ROM), which may be integrated on the same chip as the processor or may be separately disposed on different chips.

According to an eighth aspect of embodiments of the present invention, there is provided a computer-readable storage medium comprising instructions which, when executed on a computer, cause the computer to perform the various methods described above.

In particular implementations, the computer-readable storage medium is a non-transitory computer-readable storage medium.

According to a sixth aspect of embodiments of the present invention, there is provided a computer program product containing instructions which, when run on a computer, cause the computer to perform the above method.

In one possible design, the measurement mechanism is a semi-open loop measurement or a closed loop measurement.

In one possible design, when the PRG size configured by the configuration information is valid, the measurement mechanism is a semi-open loop measurement; when the PRG size configured by the configuration information is invalid, the measurement mechanism is closed-loop measurement.

In one possible design, when the value of the PRG size configured by the configuration information is greater than 0, the PRG size configured by the configuration information is valid; when the value of the PRG size configured by the configuration information is equal to 0, the PRG size configured by the configuration information is invalid.

In one possible design, the configuration information may be conveyed via radio resource control signaling.

According to the technical scheme provided by the embodiment of the invention, the measurement mechanism is indicated by the configuration information for configuring the PRG size associated with the channel measurement, so that a special signaling does not need to be set for indicating the measurement mechanism, and the control overhead is reduced.

Drawings

Fig. 1 is an exemplary schematic diagram of a wireless communication network in accordance with an embodiment of the present invention;

FIG. 2 is a diagram illustrating an exemplary logical structure of a user equipment according to an embodiment of the present invention;

fig. 3 is a schematic diagram of an exemplary logical structure of an access device according to an embodiment of the present invention;

FIG. 4 is a diagram of an exemplary hardware configuration of a communication device in accordance with one embodiment of the present invention;

fig. 5 is an exemplary flow chart of a channel measurement method according to an embodiment of the present invention.

Fig. 6 is an exemplary flow chart of a channel measurement method according to an embodiment of the present invention.

Detailed Description

The next generation wireless communication system currently under development may also be referred to as a New Radio (NR) system or a 5G system. Recent research progress shows that in the next generation wireless communication system, the measurement mechanism at least includes a Semi-open loop (Semi-open loop) measurement, which may also be referred to as Semi-open loop feedback (Semi-open loop feedback), and a closed loop (closed loop) measurement, which may also be referred to as closed loop feedback.

The semi-open loop measurement may be used for channel measurement on a CSI reporting band (CSI reporting band). The CSI reporting band may be understood as a frequency band in which CSI reporting is required. Furthermore, the CSI reporting frequency band may include multiple sub-bands (subbands), which may be continuous with each other, or discontinuous with each other, or at least a part of the sub-bands may be continuous, and the continuity of the sub-bands is not limited in the embodiment of the present invention. Furthermore, the sub-bands may belong to the same specific frequency band, and the specific frequency band may be set according to needs, and the specific frequency band is not limited in the embodiment of the present invention. For example, the specific frequency band may be a Bandwidth part (Bandwidth part). A bandwidth part may be understood as a contiguous band of frequencies comprising at least one contiguous sub-band, each bandwidth part may correspond to a set of system parameters (numerology) including, for example, but not limited to, Subcarrier spacing (Subcarrier spacing) and Cyclic Prefix (CP), etc., and different bandwidth parts may correspond to different system parameters. Optionally, in the same Transmission Time Interval (TTI), only one bandwidth part may be available, and other bandwidth parts may not be available. In addition to the above features, in a specific implementation process, further limitations may be added to the definition of the CSI reporting band.

When performing semi-open loop measurement on the CSI reporting band, the fed back CSI may include CSI of the entire CSI reporting band. The CSI of the entire CSI reporting band may also be referred to as wideband CSI of the CSI reporting band, where the CSI refers to CSI calculated by taking the CSI reporting band as a whole, and is not a set of CSI of each part obtained by performing semi-open loop measurement on each part (for example, but not limited to each subband) of the CSI reporting band. For example, the CQI of the entire CSI reporting band may be calculated, for example, but not limited to, as follows. For each Precoding Resource block Group (PRG) included in the CSI reporting band, a Precoding matrix is randomly selected from a Codebook, where the Codebook may be a Codebook indicated by Codebook Subset Restriction (Codebook Subset Restriction) signaling, and the Codebook is usually determined based on channel statistical information, so that the Codebook may adapt to a variation trend of a channel environment to a certain extent. Multiplying the channel matrix corresponding to the PRG with the precoding matrix to obtain an equivalent channel matrix of the PRG, and determining a Signal to Interference plus Noise Ratio (SINR) of the equivalent channel matrix. And calculating the average value of SINRs of all PRGs contained in the CSI reporting band or other values capable of reflecting the whole SINR of the CSI reporting band, and determining the corresponding CQI according to the value to be used as the CQI of the whole CSI reporting band.

The closed loop measurement may be used for channel measurement on CSI reporting bands, subbands, or subband groups, etc. For example, when performing closed-loop measurement on a subband, a precoding matrix may be selected from a codebook based on the principles of channel capacity maximization or throughput maximization, and the like, and the precoding matrix may be reported through a PMI. Meanwhile, the channel matrix of the sub-band can be multiplied by the precoding matrix to obtain the equivalent channel matrix of the sub-band. After calculating the SINR of the equivalent channel matrix, the corresponding CQI can be determined according to the SINR. When calculating the CQI of the subband group, the CQI corresponding to the subband group may also be obtained by referring to the method for calculating the SINR average value used in the semi-static measurement. It should be understood by those skilled in the art that, in a specific implementation process, the CQI may also be calculated by using other methods, and the specific calculation method is not limited in the embodiment of the present invention.

The channel measurement process occurs before data transmission, and thus CSI determined in the channel measurement process may be changed while data transmission is performed. In low speed scenarios, the channel environment changes rapidly, so that the CSI previously determined during channel measurement usually does not change much when data transmission is performed. In this case, since the CSI determined in the closed-loop measurement is determined based on the channel environment, the CSI is more appropriate to the channel environment, and thus the data transmission effect is better. However, in a high-speed scenario, the channel environment changes rapidly, and when data transmission is performed, CSI previously determined in the channel measurement process is likely to change greatly, so that CSI obtained by previous measurement is outdated and cannot be matched with the channel environment. In this case, the CSI determined by the semi-open loop measurement can often achieve better results. As described above, the precoding matrix involved in the semi-open loop measurement is selected from a specific codebook, which is determined based on the channel statistical information and can adapt to the variation trend of the channel environment to some extent. Therefore, even if randomly selected, there is a certain degree of matching with the channel environment. On the other hand, the CQI determined by the semi-open loop measurement is determined based on a plurality of randomly selected precoding matrices in the unit of PRG, and the effect of diversity transmission is introduced to a certain extent, so that the transmission effect is more robust.

The above procedure of calculating CSI is usually performed by the ue when performing downlink channel measurement. The user equipment determines the CSI and reports the CSI to the access equipment.

For further details regarding semi-open loop and closed loop measurements, reference may be made to the prior art, such as, but not limited to, the technical standards and proposals associated with next generation wireless communication systems. With the progress of research, the operation details of the semi-open loop measurement and the closed loop measurement may also be changed in the next generation wireless communication system, however, it should be understood by those skilled in the art after understanding the technical solution provided by the embodiments of the present invention that the technical solution provided by the embodiments of the present invention is also applicable to the changed semi-open loop measurement and closed loop measurement.

As can be seen from the above description, the semi-open loop measurement needs to calculate SINR in units of PRG in the process of calculating CQI, and thus the semi-open loop measurement is performed based on PRG. In contrast, the closed loop measurement calculates SINR in units of, for example, but not limited to, subbands in the process of calculating CQI, and thus the closed loop measurement does not necessarily depend on PRG. In this case, the configuration of the parameters associated with the PRG associated with the channel measurement may reflect that the employed measurement mechanism is a semi-open loop measurement. Therefore, the semi-open-loop measurement can be indicated by the configuration, so that a special signaling for indicating the semi-open-loop measurement is not required, and the aim of reducing the control overhead is fulfilled.

For example, in a specific implementation process, the Size of the PRG (PRG Size) involved in the semi-open loop measurement may be configured according to specific needs, where the Size of the PRG may also be understood as a frequency bandwidth of the PRG, and may generally be specifically the number of Resource Blocks (RBs) included in the PRG. For the content of the PRG size, reference may be made to the prior art, and the description of the embodiments of the present invention is not repeated. As can be appreciated in connection with the above description, semi-open loop measurements can be indicated by means of related signaling configuring the PRG size associated with the channel measurement. The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings and specific embodiments.

Fig. 1 is an exemplary diagram of a wireless communication network 100 in accordance with one embodiment of the present invention. As shown in FIG. 1, the wireless communication network 100 includes base stations 102-106 and terminal devices 108-122, wherein the base stations 102-106 can communicate with each other via backhaul (backhaul) links (shown as straight lines between the base stations 102-106), and the backhaul links can be wired backhaul links (e.g., optical fiber, copper cable) or wireless backhaul links (e.g., microwave). The terminal devices 108-122 can communicate with the corresponding base stations 102-106 via wireless links (as indicated by the broken lines between the base stations 102-106 and the terminal devices 108-122).

The base stations 102-106 generally act as access devices to provide wireless access services to the terminal devices 108-122 generally acting as user devices. Specifically, each base station corresponds to a service coverage area (which may also be referred to as a cell, as shown by the oval areas in fig. 1), and a terminal device entering the service coverage area can communicate with the base station through a wireless signal to receive a wireless access service provided by the base station. The service coverage areas of the base stations may overlap, and terminal devices in the overlapping areas can receive wireless signals from a plurality of base stations, so that the base stations can cooperate with each other to provide services for the terminal devices. For example, multiple base stations may use a Coordinated multipoint (CoMP) technology to provide services for terminal devices in the overlapping area. For example, as shown in fig. 1, there is an overlap between service coverage areas of base station 102 and base station 104, and terminal device 112 is located in the overlap area, so that terminal device 112 can receive wireless signals from base station 102 and base station 104, and base station 102 and base station 104 can cooperate with each other to provide service for terminal device 112. For another example, as shown in fig. 1, the service coverage areas of base station 102, base station 104, and base station 106 have a common overlapping area, and terminal device 120 is located in the overlapping area, so that terminal device 120 can receive wireless signals from

base stations

102, 104, and 106, and

base stations

102, 104, and 106 can cooperate with each other to provide service for terminal device 120.

Depending on the wireless communication technology used, the base station may also be referred to as a node B (NodeB), an evolved NodeB (eNodeB), an Access Point (AP), and the like. In addition, the base station may be divided into a Macro base station for providing a Macro cell (Macro cell), a micro base station for providing a micro cell (Pico cell), a Femto base station for providing a Femto cell (Femto cell), and the like according to the size of the service coverage area provided. As wireless communication technology continues to evolve, future base stations may also take on other names.

The terminal devices 108-122 may be various wireless communication devices with wireless communication functions, such as, but not limited to, a mobile cellular phone, a cordless phone, a Personal Digital Assistant (PDA), a smart phone, a notebook computer, a tablet computer, a wireless data card, a wireless Modem (Modem), or a wearable device such as a smart watch. With the advent of Internet of Things (IOT) technology and Vehicle-to-electronic (V2X) technology, more and more devices that did not previously have communication capabilities, such as, but not limited to, home appliances, vehicles, tool equipment, service equipment, and service facilities, began to gain wireless communication capabilities by configuring wireless communication units so that they could access wireless communication networks and accept remote control. Such a device has a wireless communication function due to the arrangement of the wireless communication unit, and thus also belongs to the category of wireless communication devices. Furthermore, the terminal devices 108-122 may also be referred to as mobile stations, mobile devices, mobile terminals, wireless terminals, handheld devices, clients, and the like.

The base stations 102 to 106 and the terminal devices 108 to 122 may be configured with Multiple antennas to support MIMO (Multiple Input Multiple Output) technology. Further, the base stations 102 to 106 and the terminal devices 108 to 122 may support both Single-User MIMO (SU-MIMO) technology and Multi-User MIMO (MU-MIMO), where the MU-MIMO may be implemented based on Space Division Multiple Access (SDMA) technology. Due to the configuration of Multiple antennas, base stations 102-106 and terminal devices 108-122 may also flexibly support Single Input Single Output (SISO), Single Input Multiple Output (SIMO), and Multiple Input Single Output (MISO) technologies to implement various Diversity (such as, but not limited to, Transmit Diversity and Receive Diversity) and Multiplexing technologies, where the Diversity technologies may include, but not limited to, Transmit Diversity (TD) technology and Receive Diversity (RD) technology, and the Multiplexing technology may be Spatial Multiplexing (Spatial Multiplexing) technology. Moreover, the various techniques described above may also include various implementations, for example, the Transmit Diversity techniques may include Space-Time Transmit Diversity (STTD), Space-Frequency Transmit Diversity (SFTD), Time-Switched Transmit Diversity (TSTD), Frequency-Switched Transmit Diversity (FSTD), Orthogonal Transmit Diversity (OTD), Cyclic Delay Diversity (CDD), and the like, as well as Diversity schemes obtained by deriving, evolving, and combining the Diversity schemes. For example, the LTE (Long Term Evolution) standard currently adopts Space Time Block Coding (STBC), Space Frequency Block Coding (SFBC), CDD and other transmission diversity methods. The transmit diversity has been described generally by way of example. Those skilled in the art will appreciate that transmit diversity includes a variety of other implementations in addition to the examples described above. Therefore, the above description should not be construed as limiting the technical solution of the present invention, which should be construed to be applicable to various possible transmit diversity schemes.

In addition, the base stations 102-106 and the terminal devices 108-122 may communicate using various wireless communication technologies, such as, but not limited to, Time Division Multiple Access (TDMA) technology, Frequency Division Multiple Access (FDMA) technology, Code Division Multiple Access (CDMA) technology, Time Division-Synchronous Code Division Multiple Access (TD-SCDMA), Orthogonal Frequency Division Multiple Access (Orthogonal FDMA, OFDMA) technology, Single Carrier FDMA (SC-FDMA) technology, Space Division Multiple Access (SDMA) technology, and evolution and derivation of these technologies. The above-mentioned wireless communication Technology is adopted as a Radio Access Technology (RAT) by many wireless communication standards, so as to construct various wireless communication systems (or networks) widely known today, including but not limited to Global System for Mobile Communications (GSM), CDMA2000, Wideband CDMA (WCDMA), WiFi defined by 802.11 series standards, Worldwide Interoperability for Microwave Access (WiMAX), Long Term Evolution (LTE), LTE-Advanced (LTE-a), and Evolution systems of these wireless communication systems. Unless otherwise specified, the technical solutions provided by the embodiments of the present invention can be applied to the above-mentioned various wireless communication technologies and wireless communication systems. Furthermore, the terms "system" and "network" may be used interchangeably.

It should be noted that the wireless communication network 100 shown in fig. 1 is only for example and is not used to limit the technical solution of the present invention. Those skilled in the art will appreciate that the wireless communication network 100 may include other devices in a particular implementation, and that the number of base stations and terminal devices may be configured according to particular needs.

Fig. 2 is a schematic diagram of an exemplary logical structure of a user equipment 200 according to an embodiment of the present invention. As shown in fig. 2, the user equipment 200 includes a transceiver module 202 and a processing module 204.

The transceiving module 202 is configured to receive configuration information for configuring a PRG size associated with channel measurement.

In a specific implementation, the configuration information is from the access device and may be transmitted through, for example, but not limited to, RRC signaling. In addition, the PRG size is associated with Channel measurement, that is, the PRG size is a PRG size in a Channel measurement process, and the PRG size may be the same as or different from a PRG size in a data transmission process, where the data transmission may be, for example and without limitation, data transmission through a Physical Downlink Shared Channel (PDSCH).

The processing module 204 is configured to determine a measurement mechanism according to the configuration information.

Specifically, the transmission mechanism may be a semi-open loop transmission mechanism, a closed loop transmission mechanism, or other transmission mechanisms.

The above PRG size may be used to indicate the measurement mechanism. Specifically, when the PRG size configured by the configuration information is valid, the measurement mechanism is a semi-open loop measurement; when the PRG size configured by the configuration information is invalid, the measurement mechanism is closed-loop measurement.

As described above, when the measurement mechanism is a semi-open loop measurement, since the semi-open loop measurement is performed based on the PRG, the configured PRG size associated with the channel measurement should be valid. When the measurement mechanism is not a semi-open loop measurement, the configured PRG size need not be valid, but may be invalid, since the measurement mechanism (e.g., closed loop measurement) is not based on PRG.

Further, when the value of the PRG size configured by the configuration information is greater than 0, the PRG size configured by the configuration information is valid; when the value of the PRG size configured by the configuration information is equal to 0, the PRG size configured by the configuration information is invalid. It is understood that, in a specific implementation process, it may also be set that, when the value of the PRG size configured by the configuration information is equal to other values, the PRG size configured by the configuration information is invalid.

As described above, when the PRG size associated with channel measurement configured by the above configuration information is invalid, the measurement mechanism is closed loop measurement. Thus, the user equipment may be instructed to make closed loop measurements by configuring invalid PRG sizes associated with channel measurements. This configuration process is described in detail below in conjunction with fig. 3.

Fig. 3 is a schematic diagram of an exemplary logical structure of an access device 300 according to an embodiment of the present invention. As shown in fig. 3, the access device 300 includes a processing module 302 and a transceiver module 304.

The processing module 302 is configured to generate configuration information, where the configuration information is used to configure a PRG size associated with channel measurement, and the PRG size is invalid, so that the ue determines that a measurement mechanism is closed-loop measurement according to the PRG size invalidity.

The transceiver module 304 is configured to transmit the configuration information.

As described above, when the value of the PRG size configured by the configuration information is equal to 0, the PRG size configured by the configuration information is invalid. It is understood that, in a specific implementation process, it may also be set that, when the value of the PRG size configured by the configuration information is equal to other values, the PRG size configured by the configuration information is invalid.

The related technical features related to the access device 300 have been described in detail above in conjunction with the user equipment 200, and therefore are not described in detail here.

Fig. 4 is an exemplary hardware architecture diagram of a communication device 400 in accordance with an embodiment of the present invention. In a specific implementation process, the communication device 400 may be used to implement the user equipment 200 described above, and may also be used to implement the access device 300 described above.

As shown in fig. 4, the user equipment 400 includes a processor 402, a transceiver 404, a plurality of antennas 406, a memory 408, an I/O (Input/Output) interface 410, and a bus 412. The memory 408 is further operable to store instructions 4082 and data 4084. Further, the processor 402, the transceiver 404, the memory 408, and the I/O interface 410 are communicatively coupled to each other via a bus 412, and a plurality of antennas 406 are coupled to the transceiver 404. In particular implementations, processor 402, transceiver 404, memory 408, and I/O interface 410 may be communicatively coupled to each other using connections other than bus 412.

The Processor 402 may be a general-purpose Processor, such as, but not limited to, a Central Processing Unit (CPU), or a special-purpose Processor, such as, but not limited to, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), and the like. Further, the processor 402 may be a combination of multiple processors. In particular, in the technical solution provided in the embodiment of the present invention, the processor 402 may be configured to perform, for example, the operation performed by the processing module 204 in the user equipment 200 shown in fig. 2 and the operation performed by the processing module 302 in the access equipment 300 shown in fig. 3. The processor 402 may be a processor specially designed to perform the above operations, or may be a processor that reads and executes the instructions 4082 stored in the memory 408, and the processor 402 may need the data 4084 in the process of performing the above operations.

Transceiver 404 is configured to transmit signals through at least one of a plurality of antennas 406 and receive signals through at least one of a plurality of antennas 406. In particular, in the technical solution provided in the embodiment of the present invention, the transceiver 404 may be specifically configured to be executed by at least one antenna in the multiple antennas 406, for example, an operation executed by the transceiver module 202 in the user equipment 200 shown in fig. 2 and an operation executed by the transceiver module 304 in the access equipment 300 shown in fig. 3.

The Memory 408 may be various types of storage media, such as Random Access Memory (RAM), Read Only Memory (ROM), Non-Volatile RAM (NVRAM), Programmable ROM (PROM), Erasable PROM (EPROM), Electrically Erasable PROM (EEPROM), flash Memory, optical Memory, and registers. The memory 408 is specifically configured to store the instruction 4082 and the data 4084, and the processor 402 may perform the above operations by reading and executing the instruction 4082 stored in the memory 408, where the data 4084 may be needed in the above operations.

I/O interface 410 is used to receive instructions and/or data from and output instructions and/or data to peripheral devices.

It should be noted that in a specific implementation, the user equipment 400 may also include other hardware devices, which are not listed here.

Corresponding to the user equipment 200 shown in fig. 2, the embodiment of the present invention further provides a channel measurement method, which is described in detail below with reference to fig. 5.

Fig. 5 is an exemplary flow chart of a channel measurement method 500 in accordance with an embodiment of the present invention. In particular implementations, method 500 may be performed by, for example, but not limited to, a user device.

Step 502, receiving configuration information, the configuration information being used to configure a PRG size associated with channel measurement.

Step 504, determining a measurement mechanism according to the configuration information.

Technical features related to the method 500 have been described in detail in the above process of describing the user equipment 200 in conjunction with fig. 2, and thus are not described in detail here.

Corresponding to the access device 300 shown in fig. 3, the embodiment of the present invention further provides a channel measurement method, which is described in detail below with reference to fig. 6.

Fig. 6 is an exemplary flow chart of a channel measurement method 600 in accordance with an embodiment of the present invention. In particular implementations, method 600 may be performed by, for example, but not limited to, an access device.

Step 602, generating configuration information, where the configuration information is used to configure a PRG size associated with channel measurement, and the PRG size is invalid, so that the ue determines that a measurement mechanism is closed-loop measurement according to the PRG size invalidity.

Step 604, sending the configuration information.

The technical features related to the method 600 have been described in detail in the above process of describing the access device 300 with reference to fig. 3, and therefore are not described herein again.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

In summary, the above description is only an example of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A user device, comprising:

the processing module is used for determining a measurement mechanism according to the configuration information, and when the PRG size configured by the configuration information is effective, the measurement mechanism is semi-open loop measurement; when the PRG size configured by the configuration information is invalid, the measurement mechanism is closed-loop measurement.

2. The user equipment of claim 1, wherein the PRG size configured by the configuration information is valid when the value of the PRG size configured by the configuration information is greater than 0; when the value of the precoding resource block group size configured by the configuration information is equal to 0, the PRG size configured by the configuration information is invalid.

3. The user equipment according to claim 1 or 2, wherein the configuration information is transmitted by radio resource control signaling.

4. A method of channel measurement, comprising:

determining a measurement mechanism according to the configuration information, wherein the measurement mechanism is semi-open loop measurement when the PRG size configured by the configuration information is valid; when the PRG size configured by the configuration information is invalid, the measurement mechanism is closed-loop measurement.

5. The method of claim 4, wherein the PRG size configured by the configuration information is valid when the value of the PRG size configured by the configuration information is greater than 0; when the value of the PRG size configured by the configuration information is equal to 0, the PRG size configured by the configuration information is invalid.

6. The method of claim 4 or 5, wherein the configuration information is transmitted by radio resource control signaling.