CN115002785A - Antenna port data processing method and communication device - Google Patents
Antenna port data processing method and communication device Download PDFInfo
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- H04W16/14—Spectrum sharing arrangements between different networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The application discloses a processing method of antenna port data and a communication device, relates to the technical field of communication, and is used for solving the problem that an LTE communication network generates conflict when the same frequency resource is used for transmitting CRS and NR communication networks when SSB/RMSI is transmitted. The method comprises the following steps: the network equipment determines to send antenna port data of a first communication network and antenna port data of a second communication network to the terminal equipment; the network equipment performs RE mapping on the antenna data to obtain a first RE corresponding to the first communication network and data borne by each RE in the first RE, a second RE corresponding to the second communication network and data borne by each RE in the second RE; if the first RE conflicts with the second RE, the network equipment determines a third beamforming weighting vector according to the beamforming weighting vectors of the first communication network and the second communication network; and the network equipment determines physical antenna data corresponding to the antenna port data according to the third beamforming weighting vector and the antenna port data carried by each RE.
Description
Technical Field
The embodiment of the application relates to the technical field of communication, and in particular relates to a method for processing antenna port data and a communication device.
Background
In order to utilize resources reasonably, communication operators can reuse frequency bands with low utilization rate through a replanting technology. For example, the 2.1GHz band used by the fourth generation (4 th) 4G communication network of the existing network may be replanted to a New Radio (NR). That is, the network device may transmit 5G data in the 2.1 band after the replating.
If the 2.1GHz band of the existing 4G communication network is completely restored to NR, the following problems may occur: 1. the capacity of the 4G communication network is reduced, and the user experience of the 4G communication network is influenced; 2. the number of users using the 5G communication network is small in the initial period, and the utilization rate of the 2.1GHz frequency band after the cultivation is low. Based on this problem, a Dynamic Spectrum Sharing (DSS) technique is proposed. The dynamic spectrum sharing technology means that different communication systems can transmit data on the same frequency band. For example, data of both the 4G communication network and the 5G communication network can be transmitted on the 2.1GHz band after the replating.
However, different networks may have channel collision problems when sharing the frequency band. For example, both Long Term Evolution (LTE) and NR communication networks require data transmission between 2.1GHz bands after heavy cultivation. For example, the LTE communication network needs to transmit a Cell Reference Signal (CRS) using a 2.1GHz band after the replating, and the NR communication network needs to transmit an SSB or an RMSI using the 2.1GHz band after the replating. Since the LTE communication network needs to reserve 24 Resource Blocks (RBs) every 20 milliseconds (ms) for the NR communication network to transmit Synchronization signals and Physical Broadcast channels (SSBs) or Remaining Minimum System Information (RMSI), the LTE communication network uses fixed time-frequency domain positions when transmitting CRSs, and cannot avoid the CRS by scheduling or configuration. Therefore, the LTE communication network may collide when transmitting CRS and NR when transmitting SSB/RMSI.
Disclosure of Invention
The embodiment of the application provides an antenna port data processing method and a communication device, which are used for solving the problem that an LTE communication network conflicts when the CRS and the NR communication network use the same frequency resource when the SSB/RMSI is transmitted.
In order to achieve the purpose, the following technical scheme is adopted in the application:
in a first aspect, a method for processing antenna port data is provided, where the method includes: the network equipment determines to send antenna port data to the terminal equipment, wherein the antenna port data comprises antenna port data of a first communication network and antenna port data of a second communication network; the network device performs Resource Element (RE) mapping on the antenna data to obtain a plurality of REs corresponding to the antenna port data and antenna port data carried by each RE in the plurality of REs, wherein the antenna port data of the first communication network corresponds to a first RE, and the antenna data of the second communication network corresponds to a second RE; if the first RE conflicts with the second RE, the network equipment determines a third beamforming weighting vector according to a first beamforming weighting vector corresponding to the first communication network and a second beamforming weighting vector corresponding to the second communication network; and the network equipment determines physical antenna data corresponding to the antenna port data according to the third beamforming weighting vector and the antenna port data carried by each RE.
Based on the technical solution provided by the present application, when the network device determines to send antenna port data of multiple communication systems, if RE collision occurs in the antenna port data of multiple communication systems after RE mapping, the network device may determine a new beamforming weighting vector according to the beamforming weighting vectors corresponding to the multiple communication systems, and determine physical antenna data corresponding to the antenna port data of the multiple communication systems by using the new beamforming weighting vector. Due to the new beam forming weight vector, the network equipment can simultaneously send data of different communication systems on the same RE, so that the problem that the data of different systems cannot be simultaneously sent on the same RE in the prior art can be solved.
In a second aspect, a communication apparatus is provided, which is applied to a chip or a system on a chip in a network device, and may also be a functional module in the network device for implementing the method according to the first aspect or any possible design of the first aspect. The communication means may implement the functions performed by the network device in the aspects or possible designs described above, which may be implemented by hardware executing the corresponding software. The hardware or software comprises one or more modules corresponding to the functions. Such as: the communication device includes a processing unit.
The terminal equipment comprises a processing unit, a processing unit and a processing unit, wherein the processing unit is used for determining to send antenna port data to the terminal equipment, and the antenna port data comprises antenna port data of a first communication network and antenna port data of a second communication network;
the processing unit is further configured to perform RE mapping on the antenna port data to obtain multiple REs corresponding to the antenna port data and antenna port data carried by each RE of the multiple REs. The antenna port data of the first communication network corresponds to the first RE, and the antenna port data of the second communication network corresponds to the second RE;
the processing unit is further configured to determine a third beamforming weighting vector according to the first beamforming weighting vector and the second beamforming weighting vector corresponding to the first communication network if the first RE conflicts with the second RE;
and the processing unit is further configured to determine physical antenna port data corresponding to the antenna port data according to the third beamforming weighting vector and the antenna port data carried by each RE.
The specific implementation manner of the communication apparatus may refer to the first aspect or any possible design of the first aspect, and the behavioral function of the management device in the cell management method provided in the first aspect may not be repeated here. Thus, the communication device provided may achieve the same advantageous effects as the first aspect or any of the possible designs of the first aspect.
In a third aspect, a communication apparatus is provided, which may be a management device or a chip or a system on chip in a management device. The communication means may implement the functions performed by the management device in each of the above aspects or possible designs, which may be implemented by hardware, such as: in one possible design, the communication device may include: a processor and a communications interface, the processor being operable to support a communications device to implement the functionality referred to in the first aspect above or in any one of the possible designs of the first aspect, for example: the processor is configured to determine to transmit antenna port data to the terminal device.
In yet another possible design, the communication device may further include a memory for storing computer-executable instructions and data necessary for the communication device. When the communication device is running, the processor executes the computer executable instructions stored in the memory to cause the communication device to perform the method for managing a cell according to the first aspect or any one of the possible designs of the first aspect.
In a fourth aspect, a computer program product is provided, which includes computer instructions, which, when run on a network device, cause the network device to perform the method for processing antenna port data according to the first aspect and any one of its possible design approaches (or implementations).
In a fifth aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method for processing antenna port data according to the first aspect or any one of the possible designs of the above aspects.
In a sixth aspect, a communication apparatus is provided, which may be a network device or a chip or system on a chip in a network device, and includes one or more processors and one or more memories. The one or more memories are coupled to the one or more processors and the one or more memories are configured to store computer program code comprising computer instructions that, when executed by the one or more processors, cause the network device to perform the method of processing antenna port data as set forth in the first aspect above or any one of the possible designs of the first aspect.
In a seventh aspect, a chip system is provided, where the chip system includes a processor and a communication interface, and the chip system may be configured to implement the function performed by the network device in the first aspect or any possible design of the first aspect, for example, the processor is configured to determine to send antenna port data to a terminal device. In one possible design, the system-on-chip further includes a memory to hold program instructions and/or data. The chip system may be formed by a chip, and may also include a chip and other discrete devices, without limitation.
For technical effects brought by any design manner of the second aspect to the seventh aspect, reference may be made to the technical effects brought by the first aspect or any possible design of the first aspect, and details are not repeated.
Drawings
Fig. 1 is a schematic diagram of an LTE communication network and an NR communication network sharing 2.1G spectrum resources according to an embodiment of the present application;
fig. 2 is a schematic diagram of RE collision between an LTE communication network and an NR communication network provided in an embodiment of the present application;
fig. 3 is a schematic structural diagram of a communication system according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a communication device 400 according to an embodiment of the present application;
fig. 5 is a schematic flowchart of a method for processing antenna port data according to an embodiment of the present application;
fig. 6 is a schematic diagram illustrating a result of a simulation experiment provided in an embodiment of the present application;
fig. 7 is a schematic structural diagram of another communication device 70 according to an embodiment of the present application.
Detailed Description
Before describing embodiments of the present application, the terms referred to in the embodiments of the present application are explained:
frequency re-tillage: the existing frequency spectrum resources can be reconstructed or recombined according to the requirements of different communication networks of technical evolution so as to achieve the purpose of improving and more effectively utilizing the frequency spectrum resources.
For example, as shown in fig. 1, taking the 2.1GHz spectrum resource as an example for replaniving, the replanished 2.1GHz spectrum resource can be used for transmitting data of the LTE communication network and the NR communication network.
RE conflict: also referred to as RE overlap. When the network device sends data of different communication networks to the terminal device, all or part of the used RE resources are the same. For example, the RE resources that the network device needs to use when transmitting data of the communication network 1 to the terminal device 1 include RE1 to RE10, and the RE resources that the network device needs to use when transmitting data of the communication network 2 to the terminal device 2 include RE5 to RE 14. Wherein, RE 5-RE 10 are overlapped RE resources. That is, there is an RE collision between the network device when transmitting data of the communication network 1 to the terminal device 1 and when transmitting data of the communication network 2 to the terminal device 2.
For example, as shown in fig. 2, when the LTE communication network and the NR communication network transmit data using the post-replanition spectrum resource, the RE collision of the LTE communication network and the NR communication network as shown in table 1 may include RE collision between a LTE Physical Downlink Control Channel (PDCCH) and a NR PDCCH, RE collision between the LTE PDCCH and a NR SSB, collision between a LTE Physical Downlink Shared Channel (PDSCH) and a NR PDCCH, RE collision between an LTE PDSCH and a NR Channel state information reference signal (CSI-RS), RE collision between an LTE CRS and a NR CSI-RS, RE collision between an LTE CRS and a NR PDSCH, and RE collision between an LTE CRS and a NR SSB/RMSI.
TABLE 1
Note that "YES" in table 1 indicates that there may be RE collision, and "NO" indicates that there may not be RE collision. For example, there is RE collision between NR PDCCH and LTE SSB, and no RE collision between LTE PDSCH and NR SSB. The RE collision in table 1 is only exemplary, and other RE collisions may be included without limitation.
The following describes the above-described multiple RE collisions and their corresponding solutions.
1. RE collision between LTE PDCCH and NR PDCCH.
Herein, RE collision between LTE PDCCH and NR PDCCH means that there may be full/partial overlap between REs used by the network to transmit PDCCH of LTE communication network and REs used by SSB of NR communication network.
For example, as shown in fig. 2, when the network device transmits the PDCCH of the LTE communication network, each subframe needs 1 to 3 symbols. The network device can use partial bandwidth when transmitting the PDCCH of the NR communication network, and the starting symbol is flexible. Thus, the network device can resolve RE collision between LTE PDCCH and NR PDCCH through configuration and resource scheduling. For example, the network device may resolve RE collisions between LTE PDCCH and NR PDCCH by scheduling the starting symbol of NR PDCCH. Specifically, reference may be made to the prior art, which is not described in detail.
2. RE collision between LTE PDCCH and NR SSB.
Herein, RE collision between LTE PDCCH and NR SSB means that there may be partial/full overlap between REs used by the network device to transmit PDCCH of the LTE communication network and REs used by SSB of the NR communication network.
For example, as shown in fig. 2, when the network device sends the PDCCH of the LTE communication network, each subframe needs 1 to 3 symbols. The network device needs to use 24RB, starting at 2/8, in transmitting the SSB of the NR communication network. The network device can solve the RE collision between the LTE PDCCH and the NR SSB by configuring that the number of symbols used by the LTE communication network does not exceed 2. Specifically, reference may be made to the prior art, which is not described in detail.
3. RE collision between LTE PDSCH and NR PDCCH.
Herein, RE collision between LTE PDSCH and NR PDCCH means that there may be partial/full overlap between REs used by PDSCH of the network device transmitting LTE communication network and REs used by PDCCH of the network device transmitting NR communication network.
Among them, since the network device needs to continue to transmit the PDSCH of the LTE communication network after transmitting the PDCCH, the network device can solve RE collision between the LTE PDSCH and the NR PDCCH through scheduling. Specifically, reference may be made to the prior art, which is not described in detail.
4. RE collision between LTE PDSCH and NR CSI-RS.
The RE collision between the LTE PDSCH and the NR CSI-RS means that the network equipment can partially/completely overlap the REs used by the PDSCH for transmitting the LTE communication network and the REs used by the CSI-RS for transmitting the NR communication network.
Therefore, in order to solve the problem of RE collision between LTE PDSCH and NR CSI-RS, and at the same time, to avoid interference by LTE PDSCH when NR CSI-RS is configured, the network device needs to configure ZP CSI-RS for NR. Specifically, reference may be made to the prior art, which is not described in detail.
5. RE collision between LTE CRS and NR PDSCH.
Herein, RE collision between LTE CRS and NR PDSCH means that there may be partial/full overlap between REs used by the network device to transmit CRS of the LTE communication network and REs used by PDSCH of the NR communication network.
Since the network device needs full bandwidth when transmitting CRS of the LTE communication network, there may be RE collisions with PDSCH transmitting NR communication network. Therefore, the network device may not transmit data of NR on REs used by the LTE transmission CRS through rate matching.
For example, NR UEs support LTE CRS rate matching. For another example, an LTE CSI-RS symbol corresponding to the ZP CSU-RS is configured for the NR communication network, and rate matching is performed. Specifically, reference may be made to the prior art, which is not described in detail.
6. RE collision between LTE CRS and NR SSB/RMSI.
Herein, RE collision between LTE CRS and NR SSB/RMSI means that there may be partial/full overlap between REs used by the network device to transmit CRS of the LTE communication network and REs used by the network device to transmit SSB/RMSI of the NR communication network.
Since the LTE communication network needs to reserve 24 RBs for the NR to transmit the SSB and the RMSI every 20ms, but the LTE CRS has a fixed time-frequency domain position, and the network device cannot solve the RE collision through a scheduling or configuration manner.
From the above analysis, it can be seen that the collision of LTE with REs of NR SSB/RMSI or the collision of LTE CRS with REs of NR SSB/RMSI is a major problem of the dynamic spectrum sharing technique.
At present, the solutions for the RE collision between LTE CRS and NR SSB/RMSI in the dynamic spectrum sharing technology mainly include two solutions:
(1) the network device does not transmit the CRS of the LTE communication network when transmitting the SSB/RMSI of the NR communication network.
When the network device transmits the SSBs and RMSIs of the NR communication network, the scheme of not transmitting the CRS of the LTE communication network may include: not transmitting CRS (punctured CRS) in SSB/RMSI region; the SSB/RMSI subframe is configured as a Multicast/Multicast Single Frequency Network (MBSFN) subframe.
Although the NR link performance can be maintained to the maximum extent by transmitting NR REs on CRS RE resources in the frequency domain where the SSB/RMSI is located, for LTE users, the useful signal is replaced by an interference signal, the channel estimation result is deteriorated, and the link performance is obviously deteriorated. Simulation results show that when CRS is punctured at the NR SSB/RMSI position, there is a 5% performance loss. Thus, the user experience may be affected.
Since the network device may not transmit the CRS of the LTE communication network on the MBSFN subframe, the network device may transmit the SSB/RMSI using the MBSFN subframe. However, the terminal device may not be able to process the MBSFN subframe.
(2) When the network device transmits the SSB/RMSI of the NR communication network, no information is transmitted on REs used by the LTE CRS.
This approach is problematic because the SSB/RMSI carries the most important cell information and should be considered first to avoid interference with the broadcast channel.
It should be noted that, when the network device transmits PDCCH, PDSCH, CRS, CSI-R of the LTE communication network and SSB, CORESET0, PSCCH, RMSI, PDCCH, CSI-RS of the NR system to the terminal device, the network device needs to map to the physical antenna port through RE and then transmit the information to the terminal device. Therefore, the data of the LTE communication network and the NR communication network may be referred to as antenna port data.
In view of this, in order to solve the problem of RE collision between LTE CRS and NR SSB/RMSI, an embodiment of the present application provides a method for processing antenna port data, including: the network equipment determines to send antenna port data to the terminal equipment, wherein the antenna port data comprises antenna port data of a first communication network and antenna port data of a second communication network; the network device performs RE mapping on the antenna port data to obtain a plurality of REs corresponding to the antenna port data and antenna port data carried by each RE, wherein the antenna port data of the first communication network corresponds to a first RE, and the second communication network corresponds to a second RE; if the first RE conflicts with the second RE, the network device determines a third beamforming weighting vector according to the first beamforming weighting vector of the first communication network and the second beamforming weighting vector of the second communication network, determines the third beamforming weighting vector, and determines physical antenna port data corresponding to the antenna port data according to the third beamforming weighting vector and the antenna port data carried by each RE.
Based on the technical solution provided in the embodiment of the present application, when the network device determines to send antenna port data of multiple communication networks, if RE collision occurs in the antenna port data of the multiple communication networks after RE mapping, the network device may determine a new beamforming weighting vector according to the beamforming weighting vectors corresponding to the multiple communication networks, and determine physical antenna data corresponding to the antenna port data of the multiple communication networks by using the new beamforming weighting vector. Because the new beamforming weighting vector can enable the network device to simultaneously transmit data of different communication networks on the same RE, the problem that data of different systems cannot be simultaneously transmitted on the same RE in the prior art can be solved.
It should be noted that the technical solution of the embodiment of the present application is applicable to RE collision between a narrow beam and a wide beam or between narrow beams. For example, the network device needs to use a narrow beam when transmitting data of the NR communication network, and needs to use a wide beam when transmitting data of the LTE communication network. In the following embodiments, only the collision of the RE before the narrow beam and the wide beam will be described as an example.
The technical solution of the embodiment of the present application may be applied to various communication networks, for example: code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), single carrier frequency division multiple access (SC-FDMA), and other systems. The term "system" may be used interchangeably with "network". CDMA systems may implement wireless technologies such as Universal Terrestrial Radio Access (UTRA), CDMA2000, and the like. UTRA may include Wideband CDMA (WCDMA) technology and other CDMA variant technologies. CDMA2000 may cover the Interim Standard (IS) 2000(IS-2000), IS-95 and IS-856 standards. TDMA systems may implement wireless technologies such as global system for mobile communications (GSM). The OFDMA system may implement wireless technologies such as evolved universal terrestrial radio access (E-UTRA), Ultra Mobile Broadband (UMB), IEEE 802.11(Wi-Fi), IEEE 802.16(WiMAX), IEEE 802.20, Flash OFDMA, etc. UTRA and E-UTRA are UMTS as well as UMTS evolved versions. Various versions of 3GPP in Long Term Evolution (LTE) and LTE-based evolution are new versions of UMTS using E-UTRA. NR communication networks (including 5G NSA networks and 5G SA networks), NR, are the next generation communication networks under study. In addition, the communication network can also be applied to future-oriented communication technologies, and the technical solutions provided by the embodiments of the present application are all applied.
The network architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and as a person of ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.
As shown in fig. 3, fig. 3 is a schematic structural diagram of a communication system provided in an embodiment of the present application, where the communication system includes: the terminal device comprises a network device and a plurality of terminal devices which are in communication connection with the network device.
The network device in fig. 3 may also be referred to as an access device or a Radio Access Network (RAN). For example, it may be a base station. The base station may be a base station transceiver station (BTS) in a global system for mobile communications (GSM), Code Division Multiple Access (CDMA), a base station (node B) in a Wideband Code Division Multiple Access (WCDMA), an eNB, an internet of things (IoT) or an eNB in a narrowband base-internet of things (NB-IoT), a base station in a future 5G mobile communication network or a Public Land Mobile Network (PLMN) for future evolution, which is not limited in any way by the embodiments of the present application.
It should be noted that the network device in fig. 3 may support various communication systems, for example, may support an LTE communication network and an NR communication network. The communication system of fig. 3 may also include other devices, for example, and without limitation, a core network device.
In an embodiment of the application, the terminal device is used for providing voice and/or data connectivity services to a user. The terminal may be referred to by different names, such as User Equipment (UE), access terminal, terminal unit, terminal station, mobile station, remote terminal, mobile device, wireless communication device, vehicular user equipment, terminal agent or terminal device, and the like. Optionally, the terminal may be various handheld devices, vehicle-mounted devices, wearable devices, and computers with communication functions, which is not limited in this embodiment of the present application. For example, the handheld device may be a smartphone. The in-vehicle device may be an in-vehicle navigation system. The wearable device may be a smart bracelet. The computer may be a Personal Digital Assistant (PDA) computer, a tablet computer, and a laptop computer.
In the embodiment of the present application, the terminal devices may be distributed throughout the wireless network.
In particular, the apparatus of fig. 3 may adopt the structure shown in fig. 4, or include the components shown in fig. 4. Fig. 4 is a schematic composition diagram of a communication apparatus 400 according to an embodiment of the present application, where the communication apparatus 400 may be a management device or a chip in the management device or a system on a chip. As shown in fig. 4, the communication device 400 includes a processor 401, a communication interface 402, and a communication line 403.
Further, the communication device 400 may also include a memory 404. The processor 401, the memory 404 and the communication interface 402 may be connected by a communication line 403.
The processor 401 may be a Central Processing Unit (CPU), a Network Processor (NP), a Digital Signal Processor (DSP), a microprocessor, a microcontroller, a Programmable Logic Device (PLD), or any combination thereof. The processor 401 may also be other means having processing functionality, such as, without limitation, a circuit, a device, or a software module.
A communication interface 402 for communicating with other devices or other communication networks. The other communication network may be an ethernet, a Radio Access Network (RAN), a Wireless Local Area Network (WLAN), or the like. The communication interface 403 may be a module, a circuit, a communication interface, or any device capable of enabling communication.
A communication line 403 for transmitting information between the respective components included in the communication apparatus 400.
A memory 404 for storing instructions. Wherein the instructions may be a computer program.
The memory 404 may be a read-only memory (ROM) or other types of static storage devices that can store static information and/or instructions, a Random Access Memory (RAM) or other types of dynamic storage devices that can store information and/or instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), a magnetic disc storage medium or other magnetic storage devices, and the like, without limitation.
It is noted that the memory 404 may exist separately from the processor 401 or may be integrated with the processor 401. The memory 404 may be used for storing instructions or program code or some data or the like. The memory 404 may be located inside the communication device 400 or outside the communication device 400, which is not limited. A processor 401 for executing the instructions stored in the memory 404 to implement the measurement method provided by the following embodiments of the present application.
In one example, processor 401 may include one or more CPUs, such as CPU0 and CPU1 in fig. 4.
As an alternative implementation, the communication device 400 includes multiple processors, for example, the processor 407 may be included in addition to the processor 401 in fig. 4.
As an alternative implementation, the communication apparatus 400 further includes an output device 405 and an input device 406. Illustratively, the input device 406 is a keyboard, mouse, microphone, or joystick, among other devices, and the output device 405 is a display screen, speaker (spaker), among other devices.
It is noted that the communication apparatus 400 may be a desktop computer, a portable computer, a network server, a mobile phone, a tablet computer, a wireless terminal, an embedded device, a chip system or a device with a similar structure as that in fig. 4. Further, the constituent structure shown in fig. 4 does not constitute a limitation of the terminal device, and the terminal device may include more or less components than those shown in fig. 4, or combine some components, or a different arrangement of components, in addition to the components shown in fig. 4.
In the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices.
In addition, acts, terms, and the like referred to between the embodiments of the present application may be mutually referenced and are not limited. In the embodiment of the present application, the name of the message exchanged between the devices or the name of the parameter in the message, etc. are only an example, and other names may also be used in the specific implementation, which is not limited.
In the embodiments of the present application, terms such as "first" and "second" are used to distinguish the same or similar items having substantially the same function and action. For example, the first terminal and the second terminal are only used for distinguishing different terminals, and the sequence order thereof is not limited. Those skilled in the art will appreciate that the terms "first," "second," etc. do not denote any order or quantity, nor do the terms "first," "second," etc. denote any order or importance.
It is noted that the words "exemplary" or "such as" are used herein to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "such as" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
In the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.
The following describes a positioning method provided in an embodiment of the present application with reference to the communication system shown in fig. 1. In the embodiment, actions, terms and the like related between the embodiments of the present application may be mutually referred, and are not limited. In the embodiment of the present application, the name of the message exchanged between the devices or the name of the parameter in the message, etc. are only an example, and other names may also be used in the specific implementation, which is not limited. The actions related to the embodiments of the present application are only an example, and other names may also be used in the specific implementation, for example: the term "comprising" in the embodiments of the present application may also be replaced by "carrying" or the like.
As shown in fig. 5, an embodiment of the present application provides a method for processing antenna port data, where the method includes:
step 501, the network device determines to send antenna port data to the terminal device.
The network device may be the network device in fig. 3. The terminal device may be the terminal device in fig. 3, for example, may be terminal device 1 and/or terminal device 2, without limitation.
Wherein the antenna port data may comprise antenna port data for a plurality of communication networks. The network device determining to send the antenna port data to the terminal device may refer to the network device determining to send the antenna port data of different communication networks (such as the first communication network and the second communication network) to the terminal device, for example, the network device determining to send the antenna port data of the first communication network to the terminal device 1, and sending the antenna port data of the second communication network to the terminal device 2. For another example, the network device determines to send the terminal device 1 or the terminal device antenna port data of the first communication network and the antenna port data of the second communication network.
For example, taking the first communication network as an LTE communication network and the second communication network as an NR communication network as an example, the antenna port data of the first communication network may be a CRS, and the antenna port data of the second communication network may be an SSB or an RMSI.
In a possible implementation manner, after the terminal device moves to the coverage area of the network device, a communication connection may be established with the network device first. For example, the terminal device may send an RRC message to the network device for establishing a communication connection with the network device. After receiving the RRC message from the terminal device, if the terminal device supports an NR communication network and also supports an LTE communication network, the network device may send a CRS and an SSB or an RMSI to the terminal device; if the terminal device supports the LTE communication network, the network device may send the CRS to the amplitude rising device.
Step 502, the network device performs RE mapping on the antenna port data to obtain a plurality of REs corresponding to the antenna port data and antenna port data carried by each RE in the plurality of REs.
The RE mapping may refer to mapping antenna port data to REs or determining REs corresponding to the antenna port data. As such, each RE may be made to carry partial antenna port data. The specific RE mapping method may refer to the prior art, and is not described in detail.
The RE corresponding to the antenna port data may refer to an RE for carrying the antenna port data. In this embodiment, the network device may send antenna port data to the terminal device through the multiple REs.
In one example, the antenna port data may include antenna port data of a first communication network and antenna port data of a second communication network. The first communication network and the second communication network may be different communication networks (e.g., communication networks of different standards). And after the antenna port data of the first communication network is mapped by the RE, the determined RE is the first RE. The first RE may include a plurality of REs, and each of the plurality of REs may carry a part of data in antenna port data of the first communication network. And after the antenna port data of the second communication network is mapped by the RE, the determined RE is the second RE. The second RE may include a plurality of REs, and each RE of the plurality of REs may carry a part of data in antenna port data of the second communication network.
The number of REs included in the first RE and the second RE may be the same or different. Alternatively, the network device may determine the corresponding number of REs according to the type of the communication network. For example, if the first communication network is an NR communication network and the second communication network is an LTE communication network, the number of REs corresponding to the first communication network is greater than the number of REs corresponding to the second communication network. Still alternatively, the network device may determine the corresponding number of REs according to the size or priority of the antenna port data. For example, the larger the antenna port data, or the higher the priority, the larger the corresponding number of REs. Without limitation.
Step 503, if the first RE collides with the second RE, the network device determines a third beamforming weighting vector according to a first beamforming weighting vector corresponding to the first communication network and a second beamforming weighting vector corresponding to the second communication network.
Wherein, the first RE colliding with the second RE may mean that a part/all of the REs in the first RE overlap with a part/all of the REs in the second RE. That is, the network device needs to use the same RE to send port data of the first communication network and the second communication network to the terminal device. Specifically, reference may be made to the description of the RE collision, which is not repeated herein.
Wherein the first beamforming weight vector may be used to determine physical antenna data corresponding to antenna port data of the first communication network when the first RE and the second RE do not collide. The second beamforming weight vector may be used to determine physical antenna data corresponding to antenna port data of the second communication network when the first RE and the second RE do not collide.
The first beamforming weighting vector and the second beamforming weighting vector may be configured in advance for the network device, may also be calculated by the network device according to the current communication environment/quality and a preset algorithm, and may also be obtained by the network device through communication with another device, for example, the network device is obtained through interaction with the core network device, which is not limited.
In one example, in the case where the first communication network is an NR communication network, since most of the beams used for carrying NR data are narrow beams, for example, the beams used for carrying SSBs are scanning beams and the beams used for carrying PDSCH are shaped beams. Therefore, the first beamforming weight vector may be a beamforming weight vector corresponding to a beam carrying the SSB, may also be a beamforming weight vector corresponding to a beam carrying the PDSCH, and may also be a beamforming weight vector corresponding to another narrow beam, which is not limited.
In yet another example, in a case that the second communication network is an LTE communication network, since the beam for carrying LTE data is a wide beam, the second beamforming weight vector may be a beamforming weight vector corresponding to the beam for carrying LTE data.
In another example, in a case that the second communication network is an LTE communication network, the beam used for carrying the LTE CRS may be a sector-shaped beamforming weighting vector, and the network device may subtract the sector-shaped beamforming weighting vector corresponding to the beam used for carrying the LTE CS from the beamforming weighting vector corresponding to the NR SSB by using a multi-beam splitting method to obtain a new beamforming weighting vector, that is, the second beamforming weighting vector.
In one possible implementation, the network device may calculate the third beamforming weight vector according to the following formula one.
W 3 ＝[W 1 ，W 2 ]Formula one
Wherein, W 3 Is a third beamforming weight vector, W 1 Transmitting a beamforming weight vector corresponding to antenna port data of a first communication network for a network device when a first RE collides with a second RE,
W 2 sending a beamforming weight vector corresponding to antenna port data of a second communication network for the network device when the first RE collides with the second RE,
W S1 for the first beamforming weight vector, W S2 And K is the number of physical antennas of the network device. [,]for mathematical operation of the signs, columns of a plurality of vectors may be superimposed, in particular, as referred to in the art. α and β are coefficients (may also be referred to as weighting coefficients), and the magnitudes may be set as needed, for example, α may be 1, and β may be 1 or 1/2, without limitation.
Note that, the above is only an example where there is an RE collision between two communication networks, and if there is an RE collision between three or more communication networks, it is only necessary to change the above W 1 And W 2 And adding a beamforming weighting vector and a corresponding coefficient corresponding to the communication network. For example, if a third one is also presentCommunication network, and RE of the three communication systems conflict, the above
Wherein, W S3 And gamma is a beam forming weight vector corresponding to the third communication system. W 2 Can refer to W 1 The description of (1) is not repeated.
Step 504, the network device determines physical antenna data corresponding to the antenna port data according to the third beamforming weighting vector and the antenna port data carried by each RE.
The physical antenna data may refer to data transmitted by the network device to the terminal device using the physical antenna.
In one example, the antenna port data includes antenna port data of a first communication network and antenna port data of a second communication network, and the network device may determine physical antenna data corresponding to the antenna port data by using the antenna port data of the first communication network, the antenna port data of the second communication network, and a third beamforming weighting vector.
For example, the network device may determine the physical antenna data corresponding to the antenna port data according to formula two.
Wherein the content of the first and second substances,
for the physical antenna data corresponding to the antenna port data,
the antenna port data carried for each RE in the first RE,
antenna port data carried for each RE in the second RE.
Wherein, K S1 For a first communication networkNumber of antenna ports, K, corresponding to S2 The number of antenna ports corresponding to the second communication network. The number of antenna ports corresponding to each communication network and the number of REs corresponding to the communication network may be the same.
Based on the technical scheme of fig. 3, when the network device determines to send antenna port data of multiple communication systems, if RE collision occurs in the antenna port data of the multiple communication systems after RE mapping, the network device may determine a new beamforming weighting vector according to the beamforming weighting vectors corresponding to the multiple communication systems, and determine physical antenna data corresponding to the antenna port data of the multiple communication systems by using the new beamforming weighting vector. Due to the new beam forming weight vector, the network equipment can simultaneously send data of different communication systems on the same RE, so that the problem that the data of different systems cannot be simultaneously sent on the same RE in the prior art can be solved.
In order to verify the effect of the technical scheme of the embodiment of the application, a simulation experiment is performed.
The simulation results are shown in fig. 6. Fig. 6 is a directional coverage diagram of LTE CRS, SSB, and multi-beam combining scheme when the two collide. Wherein, the sector beam forming adopts 65-degree broadcast beam. α is taken to be 1 and the narrow beam corresponding β is taken to be 1, 1/2, respectively.
The omni-directional coverage map in fig. 6 may refer to a beam coverage map corresponding to the LTE communication system when there is no RE collision. The narrow beam coverage may refer to a beam coverage corresponding to the NR communication system when there is no RE collision.
As can be seen from fig. 6, the technical solution provided in the embodiment of the present application can ensure coverage of the SSB, and coverage of the CRS is not affected outside coverage of the SSB.
Meanwhile, because different system signals are transmitted on the same time-frequency resource, the DSS technology can be realized by adopting multimode equipment, and the cost is reduced.
All the schemes in the above embodiments of the present application can be combined without contradiction.
In the embodiment of the present application, the management device may be divided into the functional modules or the functional units according to the above method examples, for example, each functional module or functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module may be implemented in a form of hardware, or may be implemented in a form of a software functional module or a functional unit. The division of the modules or units 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 dividing each functional module corresponding to each function, fig. 7 shows a schematic structural diagram of a communication device 70, where the communication device 70 may be a pair network device or a chip applied to the pair network device, and the communication device 70 may be configured to execute the function of the pair network device in the foregoing embodiment. The communication device 70 shown in fig. 7 may include: a processing unit 701.
A processing unit 701, configured to determine to send antenna port data to a terminal device, where the antenna port data includes antenna port data of a first communication network and antenna port data of a second communication network.
The processing unit 701 is further configured to perform resource element RE mapping on the antenna port data to obtain antenna port data carried by each of a plurality of REs and a plurality of REs corresponding to the antenna port data, where the antenna port data of the first communication network corresponds to the first RE and the antenna port data of the second communication network corresponds to the second RE.
The processing unit 701 is further configured to determine a third beamforming weighting vector according to a first beamforming weighting vector corresponding to the first communication network and a second beamforming weighting vector corresponding to the second communication network if the first RE and the second RE collide.
The processing unit 701 is further configured to determine physical antenna data corresponding to the antenna port data according to the third beamforming weighting vector and the antenna port data carried by each RE.
The specific implementation manner of the communication device 70 may refer to the behavior function of the network device in the method for processing antenna port data shown in fig. 5.
In one possible design, the communication device 70 shown in fig. 7 may further include a communication unit 702 and a storage unit 703. The communication unit 702 may be used to obtain antenna port data. The memory unit 703 is used for storing program codes and instructions.
In one possible design, the third beamforming weight vector W 3 ＝[W 1 ，W 2 ]Wherein, in the process,
W S1 for the first beamforming weight vector, W S2 And the second beamforming weight vector is obtained, alpha and beta are coefficients, and K is the number of physical antennas of the network equipment.
In one possible design, physical antenna data
Wherein the content of the first and second substances,
the antenna port data carried for each RE in the first RE,
antenna port data carried for each RE in the second RE.
In one possible design, the processing unit 701 is further configured to, if the first RE and the second RE do not collide, determine, by the network device, physical antenna data corresponding to antenna port data of the first communication network by using the first beamforming weighting vector, and determine, by using the second beamforming weighting vector, physical antenna data corresponding to antenna port data of the second communication network.
In one possible design, if the first communication network is a long term evolution LTE communication network and the second communication network is a new air interface NR communication network, the antenna port data corresponding to the first communication network includes a cell reference signal CRS, and the antenna port data corresponding to the second communication network includes a synchronization signal block SSB or remaining minimum system information RMSI.
As yet another implementation, the processing unit 701 in fig. 7 may be replaced by a processor, which may integrate functions of the processing unit 701. The communication unit 702 in fig. 7 may be replaced by a transceiver or transceiver unit, which may integrate the functionality of the communication unit 702.
Further, when the processing unit 701 is replaced by a processor and the communication unit 702 is replaced by a transceiver or a transceiver unit, the communication device 70 according to the embodiment of the present application may be the communication device shown in fig. 4.
The embodiment of the application also provides a computer readable storage medium. All or part of the processes in the above method embodiments may be performed by relevant hardware instructed by a computer program, which may be stored in the above computer-readable storage medium, and when executed, may include the processes in the above method embodiments. The computer readable storage medium may be an internal storage unit of the communication device (including the data sending end and/or the data receiving end) of any previous embodiment, such as a hard disk or a memory of the communication device. The computer readable storage medium may also be an external storage device of the terminal device, such as a plug-in hard disk, a Smart Memory Card (SMC), a Secure Digital (SD) card, a flash memory card (flash card), and the like, which are provided on the terminal device. Further, the computer-readable storage medium may include both an internal storage unit and an external storage device of the communication apparatus. The computer-readable storage medium stores the computer program and other programs and data required by the communication apparatus. The above-described computer-readable storage medium may also be used to temporarily store data that has been output or is to be output.
It should be noted that the terms "first" and "second" and the like in the description, claims and drawings of the present application are used for distinguishing 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.
It should be understood that in the present application, "at least one" means one or more, "a plurality" means two or more, "at least two" means two or three and three or more, "and/or" for describing an association relationship of associated objects, meaning that three relationships may exist, for example, "a and/or B" may mean: only A, only B and both A and B are present, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single item(s) or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the above-described device embodiments are merely illustrative, and for example, the division of the modules or units is only one logical functional division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another device, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, that is, may be located in one place, or may be distributed in a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially or partially contributed to by the prior art, or all or part of the technical solutions may be embodied in the form of a software product, where the software product is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (12)
1. A method for processing antenna port data, the method comprising:
the method comprises the steps that network equipment determines to send antenna port data to terminal equipment, wherein the antenna port data comprise antenna port data of a first communication network and antenna port data of a second communication network;
the network device performs Resource Element (RE) mapping on the antenna port data to obtain a plurality of REs corresponding to the antenna port data and antenna port data carried by each RE in the REs, wherein the antenna port data of the first communication network corresponds to a first RE, and the antenna port data of the second communication network corresponds to a second RE;
if the first RE collides with the second RE, the network device determines a third beamforming weighting vector according to a first beamforming weighting vector corresponding to the first communication network and a second beamforming weighting vector corresponding to the second communication network;
and the network equipment determines physical antenna data corresponding to the antenna port data according to the third beamforming weighting vector and the antenna port data carried by each RE.
2. The method according to claim 1, wherein the third beamforming weighting vector W 3 ＝[W 1 ，W 2 ]Wherein, in the process,
W S1 for said first beamforming weight vector, W S2 And the second beamforming weighting vector is obtained, alpha and beta are coefficients, and K is the number of physical antennas of the network equipment.
3. The method of claim 2, wherein the physical antenna data
Wherein the content of the first and second substances,
antenna port data carried for each of the first REs,
antenna port data carried for each of the second REs.
4. The method according to any one of claims 1-3, further comprising:
if the first RE and the second RE do not collide, the network device determines physical antenna data corresponding to antenna port data of the first communication network using the first beamforming weighting vector, and determines physical antenna data corresponding to antenna port data of the second communication network using the second beamforming weighting vector.
5. The method according to any of claims 1-3, wherein if the first communication network is a long term evolution, LTE, communication network and the second communication network is a new air interface, NR, communication network, the antenna port data corresponding to the first communication network comprises a cell reference signal, CRS, and the antenna port data corresponding to the second communication network comprises a synchronization signal and a physical broadcast channel, SSB, or remaining minimum system information, RMSI.
6. A communication apparatus, applied to a network device, the apparatus comprising:
the terminal equipment comprises a processing unit, a processing unit and a processing unit, wherein the processing unit is used for determining to send antenna port data to the terminal equipment, and the antenna port data comprises antenna port data of a first communication network and antenna port data of a second communication network;
the processing unit is further configured to perform resource element RE mapping on the antenna port data to obtain multiple REs corresponding to the antenna port data and antenna port data carried by each RE of the multiple REs, where the antenna port data of the first communication network corresponds to a first RE and the antenna port data of the second communication network corresponds to a second RE;
the processing unit is further configured to determine a third beamforming weighting vector according to a first beamforming weighting vector corresponding to the first communication network and a second beamforming weighting vector corresponding to the second communication network if the first RE and the second RE collide;
the processing unit is further configured to determine physical antenna data corresponding to the antenna port data according to the third beamforming weighting vector and the antenna port data carried by each RE.
7. The apparatus according to claim 6 wherein the third beamforming weighting vector W 3 ＝[W 1 ，W 2 ]Wherein, in the step (A),
W S1 for said first beamforming weight vector, W S2 And the second beamforming weighting vector is obtained, alpha and beta are coefficients, and K is the number of physical antennas of the network equipment.
8. The apparatus of claim 7, wherein the physical antenna data
Wherein, the first and the second end of the pipe are connected with each other,
antenna port data carried for each of the first REs,
antenna port data carried for each of the second REs.
9. The apparatus of any of claims 6-8, wherein the processing unit is further configured to determine physical antenna data corresponding to antenna port data of the first communication network using the first beamforming weight vector and determine physical antenna data corresponding to antenna port data of the second communication network using the second beamforming weight vector if the first RE and the second RE do not collide.
10. The apparatus according to any of claims 6-8, wherein if the first communication network is a long term evolution, LTE, communication network and the second communication network is a new air interface, NR, communication network, the antenna port data corresponding to the first communication network comprises a cell reference signal, CRS, and the antenna port data corresponding to the second communication network comprises a synchronization signal and a physical broadcast channel, SSB, or remaining minimum system information, RMSI.
11. A computer program product comprising computer instructions which, when run on a network device, cause the network device to perform the method of processing antenna port data according to any one of claims 1-5.
12. A communications apparatus, comprising: a processor, a memory, and a communication interface; wherein, the communication interface is used for the communication device to communicate with other equipment or networks; the memory is used to store one or more programs, the one or more programs including computer executable instructions, which when executed by the communication device, cause the communication device to perform the method of any of claims 1-5 by executing the computer executable instructions stored by the memory.
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