CN115347987A - Joint channel estimation method and related product - Google Patents
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Abstract
The embodiment of the application provides a joint channel estimation method and a related product, which are applied to a terminal and comprise the steps of obtaining time information, wherein the time information is used for indicating a preset time period, and the preset time period is in a time period corresponding to a plurality of time windows; and sending resources according to the preset time interval, wherein the resources are used for indicating joint channel estimation. Therefore, the specific joint channel estimation time can be determined, and the channel estimation efficiency is improved.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a joint channel estimation method and a related product.
Background
Demodulation Reference Signal (DMRS) is used for Channel estimation for Physical Uplink Shared Channel (PUSCH). In order to enhance the coverage of the PUSCH, a method is introduced to perform joint channel estimation for DMRSs of multiple PUSCHs, so that a base station may perform joint channel estimation according to the DMRSs. However, when the base station performs the correlation configuration of the joint channel estimation, specific information such as joint channel estimation time may not be determined, and therefore, the base station or the terminal cannot specify a specific behavior to implement the joint channel estimation, so that the joint channel estimation cannot be implemented, and the channel estimation efficiency is reduced.
Disclosure of Invention
The embodiment of the application provides a joint channel estimation method and a related product, aiming at defining the specific joint channel estimation time and improving the channel estimation efficiency.
In a first aspect, an embodiment of the present application provides a joint channel estimation method, applied to a terminal, including:
acquiring time information, wherein the time information is used for indicating a preset time period, and the preset time period is in a time period corresponding to a plurality of time windows;
and sending resources according to the preset time interval, wherein the resources are used for indicating joint channel estimation.
In a second aspect, an embodiment of the present application provides a joint channel estimation method, applied to a network device, including:
sending time information, wherein the time information is used for indicating a preset time period, and the preset time period is in a time period corresponding to a plurality of time windows;
receiving a resource;
and performing joint channel estimation according to the resources and the preset time period.
In a third aspect, an embodiment of the present application provides a joint channel estimation apparatus, applied to a terminal, including: the device comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring time information, the time information is used for indicating a preset time period, and the preset time period is in a time period corresponding to a plurality of time windows; and a sending unit, configured to send resources according to the preset time period, where the resources are used to indicate joint channel estimation.
In a fourth aspect, an embodiment of the present application provides a joint channel estimation apparatus, which is applied to a network device, and includes: the time information is used for indicating a preset time period, and the preset time period is in a time period corresponding to a plurality of time windows; a receiving unit for receiving a resource; and the estimation unit is used for carrying out joint channel estimation according to the resources and the preset time interval.
In a fifth aspect, embodiments of the present application provide a terminal, including a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for performing the steps of any of the methods of the first aspect of the embodiments of the present application.
In a sixth aspect, embodiments of the present application provide a network device, including a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the programs include instructions for performing steps in any of the methods of the second aspect of the embodiments of the present application.
In a seventh aspect, an embodiment of the present application provides a chip, including: and the processor is used for calling and running the computer program from the memory so that the device provided with the chip executes part or all of the steps described in the method of any one of the first aspect and the second aspect of the embodiment of the application.
In an eighth aspect, an embodiment of the present application provides a chip module, which includes the chip described in the seventh aspect of the embodiment of the present application.
In a ninth aspect, embodiments of the present application provide a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program makes a computer perform some or all of the steps described in any one of the methods of the first aspect or the second aspect of the embodiments of the present application.
In a tenth aspect, embodiments of the present application provide a computer program, where the computer program is operable to cause a computer to perform some or all of the steps as described in any of the methods of the first aspect or the second aspect of the embodiments of the present application. The computer program may be a software installation package.
It can be seen that, in the embodiment of the present application, a terminal obtains time information from a network device, where the time information is used to indicate a preset time period, the preset time period is a time period corresponding to multiple time windows, then the terminal sends resources according to the preset time period, the network device receives the resources from the terminal device, and performs joint channel estimation according to the resources and the preset time period. Therefore, the specific joint channel estimation time can be determined, and the channel estimation efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1a is a system architecture diagram of a communication system according to an embodiment of the present application;
fig. 1b is a schematic structural diagram of a terminal according to an embodiment of the present application;
fig. 1c is a schematic structural diagram of a network device according to an embodiment of the present application;
fig. 2a is a schematic flowchart of a joint channel estimation method according to an embodiment of the present application;
fig. 2b is a schematic diagram of a joint channel estimation time provided by an embodiment of the present application;
fig. 2c is a schematic diagram of another joint channel estimation time provided in the embodiment of the present application;
fig. 2d is a schematic diagram of another joint channel estimation time provided in the embodiment of the present application;
fig. 3 is a block diagram illustrating functional units of a joint channel estimation device according to an embodiment of the present disclosure;
fig. 4 is a block diagram illustrating functional units of a joint channel estimation device according to an embodiment of the present disclosure;
fig. 5 is a block diagram illustrating functional units of a joint channel estimation apparatus according to an embodiment of the present disclosure;
fig. 6 is a block diagram illustrating functional units of a joint channel estimation apparatus according to an embodiment of the present disclosure.
Detailed Description
In order to make the technical solutions of the embodiments of the present invention better understood by those skilled in the art, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments. In the embodiments of the present application, the terms "system" and "network" are often used interchangeably, but those skilled in the art can understand the meaning thereof.
First, partial terms referred to in the embodiments of the present application are explained so as to be easily understood by those skilled in the art.
1. User Equipment (UE). The user equipment in this embodiment is a device having a wireless transceiving function, and may be referred to as a terminal (terminal), a terminal device, a Mobile Station (MS), a Mobile Terminal (MT), an access terminal device, a vehicle-mounted terminal device, an industrial control terminal device, a UE unit, a UE station, a mobile station, a remote terminal device, a mobile device, a UE terminal device, a wireless communication device, a UE agent, or a UE apparatus. The user equipment may be fixed or mobile. It should be noted that the ue may support at least one wireless communication technology, such as LTE, new Radio (NR), wideband Code Division Multiple Access (WCDMA), and so on. For example, the user device may be a mobile phone (mobile phone), a tablet (pad), a desktop, a notebook, a kiosk, a car terminal, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote surgery (remote management), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety, a wireless terminal in city (city), a wireless terminal in smart home (smart home), a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol), SIP) phones, wireless Local Loop (WLL) stations, personal Digital Assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, wearable devices, terminal devices in future mobile communication networks or terminal devices in future evolved public mobile land networks (PLMNs), and the like. In some embodiments of the present application, the user equipment may also be a device having a transceiving function, such as a system-on-chip. The chip system may include a chip and may also include other discrete devices.
2. A network device. In the embodiment of the present application, a network device is a device that provides a wireless communication function for a user equipment, and may also be referred to as an access network device, an access network element, a Radio Access Network (RAN) device, and the like. Therein, the network device may support at least one wireless communication technology, such as LTE, NR, WCDMA, etc. By way of example, access network devices include, but are not limited to: a next generation base station (generation node B, gNB), evolved node B (eNB), radio Network Controller (RNC), node B (NB), base Station Controller (BSC), base Transceiver Station (BTS), home base station (e.g., home evolved node B or home node B, HNB), base Band Unit (BBU), transceiving point (TRP), transmitting Point (TP), mobile switching center, etc., in a fifth generation mobile communication system (5 th-generation, 5G). The network device may also be a wireless controller, a Centralized Unit (CU), and/or a Distributed Unit (DU) in a Cloud Radio Access Network (CRAN) scenario, or the network device may be a relay station, an access point, a vehicle-mounted device, a terminal device, a wearable device, and an access network device in future mobile communication or an access network device in a PLMN for future evolution, and the like. In some embodiments, the network device may also be a device, such as a system-on-a-chip, that provides wireless communication capabilities for the user equipment. For example, a system of chips may include chips and may include other discrete devices.
At present, in order to enhance the coverage of the PUSCH, a method that can perform joint channel estimation for DMRSs of multiple PUSCHs is introduced, so that a base station can perform joint channel estimation according to the DMRSs. However, when the base station performs the relevant configuration of the joint channel estimation, specific information such as joint channel estimation time may not be determined, and thus the base station or the terminal cannot specify specific behaviors to implement the joint channel estimation, so that the joint channel estimation cannot be implemented, and the channel estimation efficiency is reduced.
In view of the above problems, embodiments of the present application provide a joint channel estimation method and a related product, in order to determine a specific joint channel estimation time and improve channel estimation efficiency, which may be applied to a Long Term Evolution (LTE) system, or a next generation evolution system according to the LTE system, such as an LTE-a (LTE-Advanced) system or a fifth generation (5 th generation, 5G) system (also referred to as an NR system), or a next generation evolution system according to a 5G system, and so on.
The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.
Referring to fig. 1a, fig. 1a is a system architecture diagram of a communication system according to an embodiment of the present disclosure. The communication system 100 includes a terminal 110 and a network device 120, and the terminal 110 is communicatively connected to the network device 120, where fig. 1a is merely an exemplary illustration of a communication system and does not limit the communication system according to the embodiment of the present application. For example, a plurality of terminals, network devices, etc. may be included in the communication system 100.
The communication system and the service scenario described in the embodiment of the present disclosure are for more clearly illustrating the technical solution of the embodiment of the present disclosure, and do not constitute a limitation to the technical solution provided in the embodiment of the present disclosure, and as a person having ordinary skill in the art knows that along with the evolution of the communication system and the appearance of a new service scenario, the technical solution provided in the embodiment of the present disclosure is also applicable to similar technical problems.
As shown in fig. 1b, a schematic structural diagram of the terminal 101, the terminal 101 provided in this embodiment of the present application includes a processor 210, a memory 220, a communication interface 230, and one or more programs 221, where the one or more programs 221 are stored in the memory 220 and configured to be executed by the processor 210, and the program 221 includes an operation performed by a device on the user equipment side in the method described in this embodiment of the method of the present application.
As shown in fig. 1c, the network device 102 includes a processor 310, a memory 320, a communication interface 330, and one or more programs 321, where the one or more programs 321 are stored in the memory 320 and configured to be executed by the processor 310, and the program 321 includes an operation for executing the device on the network side in the method described in the method embodiment of the present application.
Referring to fig. 2a, fig. 2a is a schematic flowchart of a joint channel estimation method according to an embodiment of the present application, and as shown in the drawing, the method includes:
step 201, a terminal receives time information sent by a network device, wherein the time information is used for indicating a preset time period, and the preset time period is in a time period corresponding to a plurality of time windows.
The time information includes information of a time window configured by the network device, where the time window refers to a time period for performing joint channel estimation, that is, in a normal case, time information corresponding to one time window is time information corresponding to one time of joint channel estimation. In particular, PUSCH transmissions within the time window need to guarantee phase continuity and/or power consistency of the transmission. The time information may include information of a plurality of time windows, and the time windows may overlap in time or be independent in time. Therefore, the specific time for joint channel estimation can be determined in the time periods corresponding to the time windows according to the time information. The preset time period may be all time periods in the time periods corresponding to the time windows, or may be a partial time period in the time periods corresponding to the time windows. In a specific implementation, the preset time period may also be used to indicate a rule for joint channel estimation performed by the terminal or the network device in the preset time period, that is, the start time, the end time, the number of times of joint channel estimation, and the like of each time window may be obtained through the preset time period, and related content of the preset time period may be that time Information is embodied by Downlink Control Information (DCI) or Radio Resource Control (RRC) or MAC layer Control Information (MAC-CE). Of course, the time information may also only include the start time and the end time of a certain type of time window, and other information of the type of time window may be determined by the content of the corresponding repetition times and interval time of the time window in the time information. Wherein, when a plurality of time windows are included in the preset period, time lengths of the plurality of time windows may be different. Alternatively, the time information may be embodied in an implicit manner, for example, determined by the number of PUSCH retransmissions indicated in DCI or RRC. For example, if the DCI indicates that the PUSCH is to be transmitted for 4 repetitions, the length of the time window of the time information may include the 4 PUSCH transmissions. As a specific example, the time window may start at the first OFDM symbol of the first PUSCH transmission or at the first OFDM symbol of the slot in which the first PUSCH transmission is located, or at the last OFDM symbol of the PDCCH carrying the DCI, or at an OFDM symbol after the last OFDM symbol of the PDCCH carrying the DCI. The time window may also terminate at the last OFDM symbol of the last PUSCH transmission or at the last OFDM symbol of the slot in which the last PUSCH transmission was made. It should be noted that the PUSCH in the present scheme may be replaced with a Physical Uplink Control Channel (PUCCH).
In a possible example, in a case where the multiple time windows overlap in time, the preset time period is a union of time periods corresponding to the multiple time windows that overlap.
The network device configures a plurality of time windows for joint channel estimation, but the time windows configured by the network device may overlap in time, that is, a time period corresponding to a certain time window may partially or completely overlap with time periods corresponding to other time windows. At this time, the preset time period is determined as a union of time periods corresponding to a plurality of overlapping time windows, that is, the time which can be used for channel estimation is determined as a union of time periods corresponding to a plurality of overlapping time windows, that is, PUSCH transmissions in all time periods corresponding to the plurality of overlapping time windows can be used for joint channel estimation. As shown in fig. 2b, fig. 2b is a schematic diagram of a joint channel estimation time provided in the embodiment of the present application, where a time window 1 and a time window 2 overlap, and a preset time period at this time is a total time period corresponding to the time window 1 and the time window 2.
In a specific implementation, after the preset time period is determined as a union of time periods corresponding to a plurality of overlapped time windows, the number of times of joint channel estimation in the preset time period and the start time and the end time of each joint channel estimation can be further determined. For example, in fig. 2b, it may be determined that the number of times of joint channel estimation in the preset time period is 1. Since the phase of the terminal needs to be kept continuous when performing the joint channel estimation, that is, the phase-related parameters in each PUSCH within the preset time period need to be consistent, it is necessary to determine the standard time window, so that the phase-related parameters in other time windows included within the preset time period are consistent with the phase-related parameters in the standard time window. Wherein the standard time window may be the earliest time window of the plurality of overlapping time windows. For example, the beam direction corresponding to the time window 1 is a, and the beam direction corresponding to the time window 2 is B, at this time, since the joint channel estimation is performed only once within the preset time period, and the time window 1 is a standard time window, the beam direction corresponding to the time window 2 needs to be a. For example, in fig. 2b, it may also be determined that the number of times of joint channel estimation in the preset time period is 2. Therefore, when the preset time period includes a plurality of time windows, the number of times of joint channel estimation can be determined according to the number of the time windows, and specifically, the number of times of joint channel estimation is the same as the number of the time windows.
In a specific implementation, when a plurality of time windows are included in a preset time period, sorting is performed according to the starting time of each time window in the preset time period, where a first time window is a time window with the earliest starting time, and so on, a time period corresponding to the first time window may be determined as one time of joint channel estimation time, a time period except the time period overlapping with the first time window in a time period corresponding to a second time window overlapping with the first time window is another time of joint channel estimation time, and then a time period except the time period overlapping with the second time window in a time period corresponding to a third time window is determined as another time of joint channel estimation time, and so on. For example, time window 1 overlaps time window 2, and time window 2 overlaps time window 3, at this time, it may be determined that a time period corresponding to time window 1 is a time period of one time of joint channel estimation, a time period not overlapping time window 1 in a time period corresponding to time window 2 is a time period of another time of joint channel estimation, and a time period not overlapping time window 2 in a time period corresponding to time window 3 is a time period of another time of joint channel estimation.
If a plurality of time windows are overlapped with the first time window, determining that the time window with the longest time period which is not overlapped with the time period corresponding to the first time window in the time periods corresponding to the plurality of time windows is the target time window, and determining that the time period except the time period overlapped with the first time window in the time period corresponding to the target time window is the other time of joint channel estimation. If other time windows are overlapped with the target time window, determining the time window with the longest time period which is not overlapped with the time period corresponding to the first time window in the time periods corresponding to the time windows overlapped with the target time window as another target time window, and so on, and determining the joint channel estimation times and each start time and each end time in the preset time period. For example, the time window 1 overlaps with the time window 2 and the time window 3 respectively, and the time period in the time window 3 that does not overlap with the time window 1 is greater than the time period in the time window 2 that does not overlap with the time window 1, at this time, it may be determined that the time period corresponding to the time window 1 is the time period of one time of joint channel estimation, and the time period corresponding to the time window 3 is the time of another time of joint channel estimation.
In this example, in the case that multiple time windows overlap, the union of the time periods corresponding to the multiple time windows is determined as the time for which joint channel estimation can be performed. Therefore, the time of joint channel estimation can be determined, and the channel estimation efficiency is improved.
In a possible example, in a case that the overlapping condition is that the plurality of time windows overlap in time, the preset time period is a time period corresponding to a time window with the earliest starting time among the plurality of time windows where the overlapping condition exists.
When a plurality of time windows overlap, the time period which can be used for joint channel estimation can be determined as the time period corresponding to the time window with the earliest starting time. For example, as shown in fig. 2c, fig. 2c is a schematic diagram of another joint channel estimation time provided in the embodiment of the present application, in fig. 2c, a time window 1 and a time window 2 are included and overlapped with each other, and at this time, since the start time of the time window 1 is earlier than the start time of the time window 2, the preset time period is a time period corresponding to the time window 1.
In a specific implementation, the time window with the earliest starting time may be the earliest starting time in a plurality of time windows in an overlapping relationship, or may be the earliest starting time in two time windows overlapping each other. That is, according to the starting time sequence, if the time window 1 overlaps the time window 2, the time window 2 overlaps the time window 3, the time window 4 overlaps the time window 3, all the time windows are compared with each other, and a time window with the earliest starting time is determined, the time window with the earliest starting time is the time window 1, and thus the preset time interval is the time interval corresponding to the time window 1. It is also possible to compare two overlapping time windows separately according to the start time, and the time windows that have been compared are not involved in the comparison, and so on, to obtain a plurality of time windows with the earliest start time. I.e. time window 1 is compared to time window 2, since time window 2 has already taken part in the comparison, time window 3 is now compared to time window 4, resulting in time window 1 and time window 3 having an earlier start time.
In specific implementation, if a plurality of time windows are overlapped, determining that a time period corresponding to a first time window is a first preset time period, the first time window is a time window with the earliest starting time, determining that a second time window overlapped with the first time window is invalid, determining that a time period corresponding to a third time window overlapped with the second time window is a second preset time period, determining that both the first preset time period and the second preset time period can be used for joint channel estimation, and so on, determining a plurality of preset time periods which can be used for joint channel estimation. If the third time window comprises a plurality of time windows, determining that the time window with the longest time period which is not overlapped with the second time window in the time period corresponding to the third time window is the third target time window, and determining that the time period corresponding to the third target time window is the second preset time period. Or if the third time window includes a plurality of time windows, determining that the time window with the earliest starting time in the time period corresponding to the third time window is the third target time window, and determining that the time period corresponding to the third target time window is the second preset time period. After the third target time window is determined, determining that other time windows in the third time window except the third target time window are invalid.
In a specific implementation, a time period corresponding to a time window with a longest time span in the multiple overlapped time windows may also be determined as a preset time period.
In this example, it is determined that a time period corresponding to a time window with the earliest starting time among the overlapped multiple time windows is a preset time period, so that specific joint channel estimation time can be determined, and channel estimation efficiency is improved.
In a possible example, in a case that the overlapping condition is that the multiple time windows overlap in time, the preset time period is a time period during which there is no overlapping corresponding to each of the multiple time windows in which there is overlapping.
When a plurality of time windows are overlapped, the time period in which the overlapping does not occur in the time period corresponding to each time window can be determined as a preset time period. As shown in fig. 2d, fig. 2d is a schematic diagram of another joint channel estimation time provided in the embodiment of the present application, where a time window 1 and a time window 2 overlap, at this time, it may be determined that a former part of a time period during which the time window 1 does not overlap is a preset time period, and a latter part of the time period during which the time window 2 does not overlap is also a preset time period, so that both the preset time periods may be used for joint channel estimation.
In specific implementation, when the preset time period includes multiple time windows, it may be determined that the number of times of joint channel estimation in the preset time period is the same as the number of the time windows, that is, the time period corresponding to each time window is a time period of one-time joint channel estimation.
As can be seen, in this example, the non-overlapping time period corresponding to each of the multiple time windows is determined as the preset time period that can be used for joint channel estimation, so that the time for joint channel estimation can be determined, and the channel estimation efficiency can be improved.
In one possible example, the time information is further used to indicate that there is no overlap in time of the plurality of time windows.
Since the time information is information of a time window configured according to the network device, when the network device performs configuration, overlapping of a plurality of time windows may be prohibited.
Therefore, in this example, when the occurrence time windows are overlapped, the joint channel estimation time can be determined, and the channel estimation efficiency can be improved.
And 202, the terminal sends resources according to the preset time interval.
Wherein the resource is used for instructing the network device to perform joint channel estimation, and the resource may be a PUSCH or a PUCCH. The resource transmitted by the terminal may include a plurality of PUSCHs or PUCCHs, and each PUSCH or PUCCH includes a DMRS that can be used for channel estimation. In a specific implementation, each time of joint channel estimation, phase continuity and/or power consistency needs to be maintained for a plurality of transmitted PUSCHs or PUCCHs.
In one possible example, the transmitting the resource according to the preset time period includes: acquiring the estimation times of the joint channel according to the preset time period; and sending resources according to preset parameters and the preset time period, wherein the parameter values of the preset parameters corresponding to each joint channel estimation are the same.
The preset time period includes the time of each joint channel estimation, so that the joint channel estimation times in one preset time period can be obtained. The joint channel estimation may be performed one or more times within a preset time period, and the terminal needs to keep the phase continuous each time the joint channel estimation is performed, i.e. the phase-related parameter needs to be kept unchanged. For example, two time windows are included in one preset time period, two PUSCHs are included in the time period corresponding to each time window, and at this time, the preset parameters in the two PUSCHs included in the time period corresponding to each time window are the same, but the preset parameters in the PUSCH in the first time window and the preset parameters in the PUSCH in the second time window may be different. At this time, if the joint channel estimation is performed only once in the preset time period, it is necessary to keep the preset parameters in each PUSCH in the two time windows the same, that is, at this time, a target parameter value needs to be selected, so that the preset parameter values in each PUSCH in the preset time period are the same. If two times of joint channel estimation are required in the preset time period, the preset parameter values in the PUSCH in the time period corresponding to each time of joint channel estimation only need to be kept the same.
In one possible example, the preset parameters include at least one transmission parameter: modulation coding strategy, frequency domain resource position, transmitting power, sending precoding indication, time advance command and space parameter.
The frequency-domain resource location may specifically include the total number of PRBs and the specific frequency-domain location thereof. The spatial parameter (Spatialparameter) may specifically refer to spatial beam information. The preset parameter is a parameter related to the phase of the terminal, including but not limited to the above-mentioned parameters.
Step 203, the network device receives the resource sent by the terminal, and performs joint channel estimation according to the preset time interval and the preset resource.
In this example, the terminal obtains time information from the network device, where the time information is used to determine a preset time period, where the preset time period is a time period corresponding to multiple time windows, and then the terminal sends resources according to the preset time period, and the network device receives the resources from the terminal device and performs joint channel estimation according to the resources and the preset time period. Therefore, the specific joint channel estimation time can be determined, and the channel estimation efficiency is improved.
The embodiment of the application provides a joint channel estimation device, which can be a terminal. Specifically, the joint channel estimation device is configured to perform the steps performed by the terminal in the above joint channel estimation method. The joint channel estimation device provided by the embodiment of the application may include modules corresponding to the corresponding steps.
In the embodiment of the present application, the joint channel estimation apparatus may be divided into functional modules according to the method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The division of the modules in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.
In the case of adopting the functional modules divided corresponding to the functions, as shown in fig. 3, fig. 3 is a block diagram of the functional units of the joint channel estimation device provided in the embodiment of the present application. The joint channel estimation device 3 is applied to a terminal and comprises: an obtaining unit 31, configured to obtain time information, where the time information is used to indicate a preset time period, and the preset time period is a time period corresponding to multiple time windows; a sending unit 32, configured to send a resource according to the preset time period, where the resource is used to indicate joint channel estimation.
In one possible example, in a case where the multiple time windows overlap in time, the preset period is a union of time periods corresponding to the multiple time windows that overlap.
In one possible example, in a case that the overlapping condition is that the time windows overlap in time, the preset time period is a time period corresponding to a time window with an earliest starting time among the time windows that overlap.
In one possible example, in a case that the overlapping condition is that the time windows overlap in time, the preset time period is a time period during which there is no overlapping corresponding to each of the time windows in which there is overlapping.
In a possible example, in terms of the sending resources according to the preset time period, the sending unit 32 is specifically configured to: acquiring the estimation times of the joint channel according to the preset time period; and sending resources according to preset parameters and the preset time period, wherein the parameter values of the preset parameters corresponding to each joint channel estimation are the same.
In one possible example, the preset parameters include at least one transmission parameter: modulation coding strategy, frequency domain resource position, transmitting power, sending precoding indication, time advance command and space parameter.
In one possible example, the time information is further used to indicate that there is no overlap in time of the plurality of time windows.
All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again. Of course, the joint channel estimation apparatus provided in the embodiments of the present application includes, but is not limited to, the modules described above, for example: the joint channel estimation device may further include a storage unit. The memory unit may be used for storing program codes and data of the joint channel estimation device.
In the case of using an integrated unit, a schematic structural diagram of a joint channel estimation apparatus provided in the embodiment of the present application is shown in fig. 4. In fig. 4, the joint channel estimation device 4 includes: a processing module 40 and a communication module 41. The processing module 40 is used for controlling and managing actions of the joint channel estimation device, such as steps performed by the acquisition unit 31 and the transmission unit 32, and/or other processes for performing the techniques described herein. The communication module 41 is used to support the interaction between the joint channel estimation device and other devices. As shown in fig. 4, the joint channel estimation device may further include a storage module 42, and the storage module 42 is used for storing program codes and data of the joint channel estimation device, for example, storing contents stored in the storage unit.
The Processing module 40 may be a Processor or a controller, and may be, for example, a Central Processing Unit (CPU), a general-purpose Processor, a Digital Signal Processor (DSP), an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or execute the various illustrative logical blocks, modules, and circuits described in connection with the disclosure herein. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs, and microprocessors, among others. The communication module 41 may be a transceiver, an RF circuit or a communication interface, etc. The storage module 42 may be a memory.
All relevant contents of each scene related to the method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again. Both the joint channel estimation device 3 and the joint channel estimation device 4 can perform the steps performed by the terminal in the joint channel estimation method shown in fig. 2 a.
In the case of adopting the functional modules divided corresponding to the respective functions, as shown in fig. 5, fig. 5 is a block diagram of the functional units of another joint channel estimation device provided in the embodiment of the present application. The joint channel estimation device 5 is applied to a network device, and includes a sending unit 51, configured to send time information, where the time information is used to indicate a preset time period, and the preset time period is a time period corresponding to multiple time windows; a receiving unit 52, configured to receive a resource; an estimating unit 53, configured to perform joint channel estimation according to the resource and the preset time period.
In one possible example, in a case where the plurality of time windows overlap in time, the preset time period is a union of time periods corresponding to the plurality of time windows that overlap.
In one possible example, in a case that the overlapping condition is that the time windows overlap in time, the preset time period is a time period corresponding to a time window with an earliest starting time among the time windows that overlap.
In one possible example, in the case that the overlapping condition is that the multiple time windows overlap in time, the preset time period is a time period during which there is no overlapping corresponding to each of the multiple time windows in which there is overlapping.
In one possible example, the time information is further used to indicate that there is no overlap in time of the plurality of time windows.
All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again. Of course, the joint channel estimation apparatus provided in the embodiments of the present application includes, but is not limited to, the modules described above, for example: the joint channel estimation device may further include a storage unit. The memory unit may be used for storing program codes and data of the joint channel estimation device.
In the case of using an integrated unit, a schematic structural diagram of the joint channel estimation apparatus provided in the embodiment of the present application is shown in fig. 6. In fig. 6, the joint channel estimation device 6 includes: a processing module 60 and a communication module 61. The processing module 60 is used for controlling and managing actions of the joint channel estimation device, such as steps performed by the transmitting unit 51, the receiving unit 52, and the estimating unit 53, and/or other processes for performing the techniques described herein. The communication module 61 is used to support the interaction between the joint channel estimation device and other devices. As shown in fig. 6, the joint channel estimation device may further include a storage module 62, and the storage module 62 is used for storing program codes and data of the joint channel estimation device, for example, contents stored in the storage unit.
The Processing module 60 may be a Processor or a controller, and may be, for example, a Central Processing Unit (CPU), a general-purpose Processor, a Digital Signal Processor (DSP), an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs, and microprocessors, and the like. The communication module 61 may be a transceiver, an RF circuit or a communication interface, etc. The storage module 62 may be a memory.
All relevant contents of each scene related to the method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again. Both the joint channel estimation device 5 and the joint channel estimation device 6 can perform the steps performed by the network device in the joint channel estimation method shown in fig. 2 a.
The embodiment of the present application further provides a chip, where the chip includes a processor, configured to call and run a computer program from a memory, so that a device in which the chip is installed performs some or all of the steps described in the terminal in the above method embodiment.
An embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program makes a computer perform some or all of the steps described in the terminal in the above method embodiment.
The embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program causes a computer to perform some or all of the steps described in the above method embodiment for a network-side device.
The present application further provides a computer program product, where the computer program product includes a computer program operable to make a computer perform some or all of the steps described in the terminal in the above method embodiments. The computer program product may be a software installation package.
The steps of a method or algorithm described in the embodiments of the present application may be implemented in hardware, or may be implemented by a processor executing software instructions. The software instructions may be comprised of corresponding software modules that may be stored in Random Access Memory (RAM), flash Memory, read Only Memory (ROM), erasable Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), registers, a hard disk, a removable disk, a compact disc Read Only Memory (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. Additionally, the ASIC may reside in an access network device, a target network device, or a core network device. Of course, the processor and the storage medium may reside as discrete components in an access network device, a target network device, or a core network device.
Those skilled in the art will appreciate that in one or more of the examples described above, the functionality described in the embodiments of the present application may be implemented, in whole or in part, by software, hardware, firmware, or any combination thereof. When implemented in software, it 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. The procedures or functions described in accordance with the embodiments of the application are all or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions can be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, 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.) means. 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., digital Video Disk (DVD)), or a semiconductor medium (e.g., solid State Disk (SSD)), among others.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the embodiments of the present application in further detail, and it should be understood that the above-mentioned embodiments are only specific embodiments of the present application, and are not intended to limit the scope of the embodiments of the present application, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the embodiments of the present application should be included in the scope of the embodiments of the present application.
Claims (17)
1. A joint channel estimation method is applied to a terminal, and comprises the following steps:
acquiring time information, wherein the time information is used for indicating a preset time period, and the preset time period is in a time period corresponding to a plurality of time windows;
and sending resources according to the preset time interval, wherein the resources are used for indicating joint channel estimation.
2. The method according to claim 1, wherein in a case where the time windows overlap in time, the preset time period is a union of time periods corresponding to the time windows where the time windows overlap.
3. The method according to claim 1, wherein in the case that the overlapping condition is that the time windows overlap in time, the preset time period is a time period corresponding to a time window with the earliest starting time among the time windows that overlap.
4. The method according to claim 1, wherein in the case that the overlapping condition is that the time windows overlap in time, the preset time period is a time period corresponding to each time window of the plurality of time windows with overlapping, during which there is no overlapping.
5. The method according to any one of claims 1-4, wherein said transmitting resources according to the preset time period comprises:
acquiring the estimation times of the joint channel according to the preset time period;
and sending resources according to preset parameters and the preset time period, wherein the parameter values of the preset parameters corresponding to each joint channel estimation are the same.
6. The method of claim 5, wherein the preset parameters comprise at least one transmission parameter:
modulation coding strategy, frequency domain resource position, transmitting power, sending precoding indication, time advance command and space parameter.
7. The method of claim 1, wherein the time information is further used to indicate that none of the plurality of time windows overlap in time.
8. A joint channel estimation method applied to a network device includes:
sending time information, wherein the time information is used for indicating a preset time period, and the preset time period is in a time period corresponding to a plurality of time windows;
receiving a resource;
and performing joint channel estimation according to the resources and the preset time period.
9. A joint channel estimation device applied to a terminal comprises:
the device comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring time information, the time information is used for indicating a preset time period, and the preset time period is in a time period corresponding to a plurality of time windows;
and a sending unit, configured to send a resource according to the preset time period, where the resource is used to indicate joint channel estimation.
10. A joint channel estimation device, applied to a network device, comprising:
the time information is used for indicating a preset time period, and the preset time period is in a time period corresponding to a plurality of time windows;
a receiving unit for receiving a resource;
and the estimation unit is used for carrying out joint channel estimation according to the resources and the preset time interval.
11. A terminal comprising a processor, memory, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in the method of any of claims 1-7.
12. A network device comprising a processor, memory, and one or more programs stored in the memory and configured to be executed by the processor, the programs including instructions for performing the steps in the method of claim 8.
13. A computer-readable storage medium, characterized in that a computer program for electronic data exchange is stored, wherein the computer program causes a computer to perform the method according to any one of claims 1-7 or claim 8.
14. A chip, which is applied to a terminal, is characterized in that,
the chip is used for acquiring time information, wherein the time information is used for indicating a preset time period, and the preset time period is in a time period corresponding to a plurality of time windows; and transmitting resources according to the preset time period, wherein the resources are used for indicating joint channel estimation.
15. A chip module applied in a terminal is characterized in that the chip module comprises a transceiver component and a chip,
the chip is used for acquiring time information, wherein the time information is used for indicating a preset time period, and the preset time period is in a time period corresponding to a plurality of time windows; and transmitting resources according to the preset time period, wherein the resources are used for indicating joint channel estimation.
16. A chip applied to a network device is characterized in that,
the chip is used for sending time information, the time information is used for indicating a preset time period, and the preset time period is in a time period corresponding to a plurality of time windows; and for receiving the resource; and the joint channel estimation is carried out according to the resources and the preset time interval.
17. A chip module applied in network equipment is characterized in that the chip module comprises a transceiver component and a chip,
the chip is used for sending time information, the time information is used for indicating a preset time period, and the preset time period is in a time period corresponding to a plurality of time windows; and for receiving resources; and the joint channel estimation is carried out according to the resources and the preset time interval.
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| CN108633061A (en) * | 2017-03-25 | 2018-10-09 | 中兴通讯股份有限公司 | Configured transmission determines method and device |
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