CN111385823B - Signal processing method and device - Google Patents
Signal processing method and device Download PDFInfo
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- CN111385823B CN111385823B CN201811643606.1A CN201811643606A CN111385823B CN 111385823 B CN111385823 B CN 111385823B CN 201811643606 A CN201811643606 A CN 201811643606A CN 111385823 B CN111385823 B CN 111385823B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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Abstract
The invention provides a signal processing method and device. Specifically, the signal processing method includes: a home cell of User Equipment (UE) and a cooperative cell of the UE jointly measure a channel measurement reference signal (SRS) sent by the UE; according to the measurement result, the home cell and the cooperative cell jointly calculate a codebook, and the home cell schedules the UE to send a Physical Uplink Shared Channel (PUSCH) by adopting the codebook; and according to the codebook, the home cell and the cooperative cell jointly receive the PUSCH sent by the UE. The invention solves the problems that the throughput is lower and the receiving performance is poorer when the UE is at the edge of the cell in the related technology, and achieves the effect of maximizing the joint receiving performance of the edge UE.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a signal processing method and apparatus.
Background
There are two transmission modes of physical uplink shared channel (Physical Uplink Shared Channel, abbreviated PUSCH) in 5G system, codebook-based transmission scheme and non-codebook-based transmission scheme. For the transmission scheme based on the codebook, the base station informs the UE of the codebook to be adopted for transmitting the PUSCH through downlink control information (Downlink Control Information, abbreviated as DCI), and in general, the base station end selects the codebook suitable for the UE to transmit the PUSCH by measuring the channel sounding reference signal (Sounding reference signal, abbreviated as SRS) transmitted by the UE. However, if the throughput is low when the UE is at the edge of the cell, the reception performance may be poor. However, there is no better solution to the above problems.
Disclosure of Invention
The embodiment of the invention provides a signal processing method and device, which at least solve the problems that the throughput is lower and the receiving performance is poorer when UE is positioned at the edge of a cell in the related technology.
According to an embodiment of the present invention, there is provided a signal processing method including: a home cell of User Equipment (UE) and a cooperative cell of the UE jointly measure a channel measurement reference signal (SRS) sent by the UE; according to the measurement result, the home cell and the cooperative cell jointly calculate a codebook, and the home cell schedules the UE to send a Physical Uplink Shared Channel (PUSCH) by adopting the codebook; and according to the codebook, the home cell and the cooperative cell jointly receive the PUSCH sent by the UE.
Optionally, the cooperative cell of the UE is determined at least by: the home cell determines one or more cooperating cells from signals received by the one or more candidate cooperating cells from the UE. Optionally, the home cell determines one or more coordination cells according to signals received by the one or more candidate coordination cells from the UE, including: the home cell judges whether the signal strength corresponding to the signals received by one or more candidate cooperative cells from the UE is greater than a preset threshold value; the home cell selects one or more candidate cells with the signal strength larger than the preset threshold value as the cooperative cell.
According to another embodiment of the present invention, there is provided a signal transmission method including: a User Equipment (UE) sends a channel measurement reference signal (SRS) to a home cell of the UE, wherein the SRS is used for jointly measuring the home cell of the UE and a cooperative cell of the UE; the method comprises the steps that User Equipment (UE) receives a codebook sent by a home cell of the UE, wherein the codebook is obtained by jointly calculating SRS measurement results obtained by common measurement of the home cell and the cooperative cell; and the UE sends a Physical Uplink Shared Channel (PUSCH) to the home cell and the cooperative cell according to the codebook.
According to another embodiment of the present invention, there is provided a signal processing apparatus including: the first measuring module and the second measuring module are used for measuring a channel measurement reference signal SRS sent by User Equipment (UE); the system comprises a first calculation module and a second measurement module, wherein the first calculation module is used for jointly calculating a codebook, and the first calculation module is also used for scheduling UE to transmit by adopting a corresponding codebook; the first receiving module and the second receiving module are used for jointly receiving a Physical Uplink Shared Channel (PUSCH) sent by the UE according to the codebook; the first measurement module, the first calculation module, the first receiving module and the second calculation module are respectively located in the home cell and the second calculation module of the UE, and the second receiving module is located in the cooperative cell of the UE. Optionally, the apparatus further comprises: and the determining module is positioned in the home cell and is used for determining one or more cooperative cells according to the SRS measurement result of the uplink of the UE.
Optionally, the determining module includes: the judging unit is positioned in the home cell and is used for judging whether the signal intensity of the UE measured by one or more candidate cooperative cells is greater than a preset intensity threshold value; and the selection unit is positioned in the home cell and is used for determining one or more candidate cooperative cells with the signal strength larger than the preset strength threshold value as the cooperative cells.
According to another embodiment of the present invention, there is provided a signal transmitting apparatus located in a user equipment UE, including: the third receiving module is used for receiving a codebook sent by a home cell, wherein the codebook is obtained by jointly calculating the home cell and a cooperative cell; and the sending module is used for sending an uplink shared channel (PUSCH) to the home cell and the cooperative cell according to the codebook. According to a further embodiment of the invention, there is also provided a storage medium having stored therein a computer program, wherein the computer program is arranged to perform the steps of any of the method embodiments described above when run.
According to a further embodiment of the invention, there is also provided an electronic device comprising a memory having stored therein a computer program and a processor arranged to run the computer program to perform the steps of any of the method embodiments described above.
According to the invention, the SRS signals of the UE are measured through the home cell and the cooperative cell selected by the home cell, the codebook is provided for the UE, and the PUSCH returned by the UE according to the codebook is received together, so that the problems that the throughput is lower and the receiving performance is poor when the UE is at the edge of the cell in the related technology can be solved, and the effect that the joint receiving performance of the edge UE is maximized can be achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
fig. 1 is a block diagram of a hardware structure of a mobile terminal of a signal processing method according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method of processing a signal according to an embodiment of the invention;
FIG. 3 is a scene 1-based flowchart in accordance with an embodiment of the invention;
FIG. 4 is a scene 2-based flowchart in accordance with an embodiment of the invention;
fig. 5 is a block diagram of a signal processing apparatus according to an embodiment of the present invention;
fig. 6 is a block diagram of a signal transmission apparatus according to an embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the drawings in conjunction with embodiments. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.
Example 1
The method embodiment provided in the first embodiment of the present application may be executed in a mobile terminal, a computer terminal or a similar computing device. Taking the mobile terminal as an example, fig. 1 is a block diagram of a hardware structure of the mobile terminal according to a signal processing method according to an embodiment of the present invention. As shown in fig. 1, the mobile terminal 10 may include one or more (only one is shown in fig. 1) processors 102 (the processor 102 may include, but is not limited to, a microprocessor MCU or a processing device such as a programmable logic device FPGA) and a memory 104 for storing data, and optionally a transmission device 106 for communication functions and an input-output device 108. It will be appreciated by those skilled in the art that the structure shown in fig. 1 is merely illustrative and not limiting of the structure of the mobile terminal described above. For example, the mobile terminal 10 may also include more or fewer components than shown in FIG. 1 or have a different configuration than shown in FIG. 1.
The memory 104 may be used to store a computer program, for example, a software program of application software and a module, such as a computer program corresponding to a signal processing method in an embodiment of the present invention, and the processor 102 executes the computer program stored in the memory 104 to perform various functional applications and data processing, that is, implement the above-mentioned method. Memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include memory located remotely from the processor 102, which may be connected to the mobile terminal 10 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission means 106 is arranged to receive or transmit data via a network. The specific examples of networks described above may include wireless networks provided by the communication provider of the mobile terminal 10. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, simply referred to as NIC) that can connect to other network devices through a base station to communicate with the internet. In one example, the transmission device 106 may be a Radio Frequency (RF) module, which is used to communicate with the internet wirelessly.
In this embodiment, a method for processing a signal running on the mobile terminal or the network architecture is provided, and fig. 2 is a flowchart of a method for processing a signal according to an embodiment of the present invention, as shown in fig. 2, where the flowchart includes the following steps:
step S202, a home cell of User Equipment (UE) and a cooperative cell of the UE jointly measure a channel measurement reference signal (SRS) sent by the UE;
step S204, according to the measurement result, the home cell and the cooperative cell jointly calculate a codebook and the home cell schedules the UE to transmit a Physical Uplink Shared Channel (PUSCH) by using the codebook
Step S206, according to the codebook, the home cell and the cooperative cell jointly receive the PUSCH sent by the UE.
Optionally, the cooperative cell of the UE is determined at least by: the home cell determines one or more cooperating cells from signals received by the one or more candidate cooperating cells from the UE. Optionally, the home cell determines one or more coordination cells according to signals received by the one or more candidate coordination cells from the UE, including: the home cell judges whether the signal strength corresponding to the signals received by one or more candidate cooperative cells from the UE is greater than a preset threshold value; the home cell selects one or more candidate cells with the signal strength larger than the preset threshold value as the cooperative cell. .
It should be noted that candidate cooperating cells include, but are not limited to: neighboring cells of the home cell or other cells capable of signaling with the current UE.
Note that, when selecting the cooperative cell, the home cell may acquire the signal received from the UE as the SRS signal or other signals. And the purpose of this signal is to achieve normal communication between the cooperating cell and the UE. Therefore, the SRS signal may be the same as or different from that used in measuring the codebook.
Specifically, the number of the cooperative cells may be determined according to the signal strength selection of the receiving UE measured by the cooperative cells, and other selection manners.
In addition, in order to save resources and more rapidly improve the reception performance of the UE at the cell edge, when determining the cooperative cell, the candidate cooperative cell with the highest signal strength may be selected from a plurality of candidate cooperative cells satisfying the preset strength threshold as the present cooperative cell.
And if, in order to more accurately and comprehensively improve the reception performance of the UE at the cell edge, one or more candidate cooperative cells having an intensity greater than the preset intensity threshold are employed.
Other selection modes according to the user requirements and basic ideas of the embodiment are also within the protection scope of the embodiment, and are not described too much again.
Through the steps, the problem that the throughput is lower and the receiving performance is poorer when the UE is at the edge of the cell in the related technology is solved, and the effect that the performance of the joint receiving of the edge UE is maximized is achieved.
In addition, in the present embodiment, the following scenario is also provided, so as to better understand the technical solution described in the present embodiment.
Scene 1:
fig. 3 is a flow chart based on scenario 1 according to an embodiment of the present invention. As shown in fig. 3:
step S1: the home cell judges the cooperative cell of the UE according to the uplink SRS receiving power of the UE, and selects the cell with the largest SRS intensity of the receiving UE as the cooperative cell of the UE except the home cell.
Step S2: the UE transmits SRS for codebook measurement; step S3: the home cell and the cooperative cell measure the SRS of the UE together, and the codebook which is suitable for the PUSCH transmission of the UE is calculated in parallel;
step S4: the home cell schedules the UE and indicates a codebook to be adopted by the UE in DCI, wherein the codebook is the codebook obtained by the joint calculation of the home cell and the cooperative cell in the step S3;
step S5: the UE transmits the PUSCH by adopting the codebook indicated by the DCI in the step S4;
step S6: the home cell and the cooperating cell jointly receive the PUSCH of the UE based on the jointly calculated codebook.
Scene 2:
fig. 4 is a flow chart based on scenario 2 according to an embodiment of the present invention. As shown in fig. 4:
step S1: the home cell judges the cooperative cell of the UE according to the uplink SRS receiving power of the UE, and selects a plurality of candidate cooperative cells of which the SRS intensity of the receiving UE is larger than a preset intensity threshold value as the cooperative cell of the UE except the home cell.
Step S2: the UE transmits SRS for codebook measurement;
step S3: the home cell and the cooperative cells measure SRS of the UE together, and the codebook which is suitable for the PUSCH transmission of the UE is calculated in parallel;
step S4: the home cell schedules the UE and indicates a codebook to be adopted by the UE in DCI, wherein the codebook is obtained by jointly calculating the home cell and a plurality of cooperative cells in the step S3;
step S5: the UE transmits the PUSCH by adopting the codebook indicated by the DCI in the step S4;
step S6: the home cell and the plurality of cooperating cells jointly receive the PUSCH of the UE based on the jointly calculated codebook.
From the description of the above embodiments, it will be clear to a person skilled in the art that the method according to the above embodiments may be implemented by means of software plus the necessary general hardware platform, but of course also by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present invention.
Example 2
The embodiment also provides a signal processing device, which is used for implementing the above embodiment and the preferred implementation manner, and is not described in detail. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. While the means described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware, is also possible and contemplated.
Fig. 5 is a block diagram of a signal processing apparatus according to an embodiment of the present invention, as shown in fig. 5, the apparatus including:
a first measurement module 51 and a second measurement module 52, configured to measure a channel measurement reference signal SRS sent by a user equipment UE;
a first calculation module 53 and a second measurement module 54, configured to jointly calculate a codebook, where the first calculation module is further configured to schedule UE to transmit with a corresponding codebook;
a first receiving module 55 and a second receiving module 56, configured to jointly receive, according to the codebook, a physical uplink shared channel PUSCH transmitted by the UE;
the first measurement module 51, the first calculation module 53, the first receiving module 55, the second measurement module 52, the second calculation module 54, and the second receiving module 56 are located in a home cell of the UE.
Optionally, the apparatus further comprises: and the determining module is positioned in the home cell and is used for determining one or more cooperative cells according to signals received by the one or more candidate cooperative cells from the UE.
Optionally, the determining module includes: the judging unit is positioned in the home cell and is used for judging whether the signal strength corresponding to the signals received by one or more candidate cooperative cells from the UE is greater than a preset threshold value or not; and the selecting unit is positioned in the home cell and is used for selecting one or more candidate cells with the signal intensity larger than the preset threshold value as the cooperative cell by the home cell.
It should be noted that each of the above modules may be implemented by software or hardware, and for the latter, it may be implemented by, but not limited to: the modules are all located in the same processor; alternatively, the above modules may be located in different processors in any combination.
Example 3
The embodiment also provides a signal processing device, which is used for implementing the above embodiment and the preferred implementation manner, and is not described in detail.
Fig. 6 is a block diagram of a signal transmission apparatus according to an embodiment of the present invention, as shown in fig. 6, including: a third receiving module 62, a transmitting module 64.
A third receiving module 62, configured to receive a codebook sent by a home cell, where the codebook is a codebook obtained by jointly calculating the home cell and a coordinated cell;
a sending module 64, configured to send an uplink shared channel PUSCH to the home cell and the cooperating cell according to the codebook. It should be noted that each of the above modules may be implemented by software or hardware, and for the latter, it may be implemented by, but not limited to: the modules are all located in the same processor; alternatively, the above modules may be located in different processors in any combination.
Example 4
An embodiment of the invention also provides a storage medium having a computer program stored therein, wherein the computer program is arranged to perform the steps of any of the method embodiments described above when run.
Alternatively, in the present embodiment, the above-described storage medium may be configured to store a computer program for performing the steps of:
s1, a home cell of User Equipment (UE) and a cooperative cell of the UE jointly measure a channel measurement reference signal (SRS) sent by the UE;
s2, according to the measurement result, the home cell and the cooperative cell jointly calculate a codebook, and the home cell schedules the UE to send a Physical Uplink Shared Channel (PUSCH) by adopting the codebook;
and S3, according to the codebook, the home cell and the cooperative cell jointly receive the PUSCH sent by the UE.
Alternatively, in the present embodiment, the storage medium may include, but is not limited to: a usb disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing a computer program.
An embodiment of the invention also provides an electronic device comprising a memory having stored therein a computer program and a processor arranged to run the computer program to perform the steps of any of the method embodiments described above.
Optionally, the electronic apparatus may further include a transmission device and an input/output device, where the transmission device is connected to the processor, and the input/output device is connected to the processor.
Alternatively, in the present embodiment, the above-described processor may be configured to execute the following steps by a computer program:
s1, a home cell of User Equipment (UE) and a cooperative cell of the UE jointly measure a channel measurement reference signal (SRS) sent by the UE;
s2, according to the measurement result, the home cell and the cooperative cell jointly calculate a codebook, and the home cell schedules the UE to send a Physical Uplink Shared Channel (PUSCH) by adopting the codebook;
and S3, according to the codebook, the home cell and the cooperative cell jointly receive the PUSCH sent by the UE.
Alternatively, specific examples in this embodiment may refer to examples described in the foregoing embodiments and optional implementations, and this embodiment is not described herein.
It will be appreciated by those skilled in the art that the modules or steps of the invention described above may be implemented in a general purpose computing device, they may be concentrated on a single computing device, or distributed across a network of computing devices, they may alternatively be implemented in program code executable by computing devices, so that they may be stored in a memory device for execution by computing devices, and in some cases, the steps shown or described may be performed in a different order than that shown or described, or they may be separately fabricated into individual integrated circuit modules, or multiple modules or steps within them may be fabricated into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method of processing a signal, comprising:
a home cell of User Equipment (UE) and a cooperative cell of the UE jointly measure a channel measurement reference signal (SRS) sent by the UE;
according to the measurement result, the home cell and the cooperative cell jointly calculate a codebook, and the home cell schedules the UE to transmit a Physical Uplink Shared Channel (PUSCH) by adopting the codebook;
and according to the codebook, the home cell and the cooperative cell jointly receive the PUSCH sent by the UE.
2. The method of claim 1, wherein the UE's cooperating cells are determined by at least:
the home cell determines one or more cooperating cells from signals received by the one or more candidate cooperating cells from the UE.
3. The method of claim 2, wherein the home cell determines one or more cooperating cells from signals received by the one or more candidate cooperating cells from the UE, comprising:
the home cell judges whether the signal strength corresponding to the signals received by one or more candidate cooperative cells from the UE is greater than a preset threshold value; the home cell selects one or more candidate cooperative cells with the signal strength larger than the preset threshold value as the cooperative cells.
4. A method of transmitting a signal, comprising:
a User Equipment (UE) sends a channel measurement reference signal (SRS) to a home cell of the UE, wherein the SRS is used for jointly measuring the home cell of the UE and a cooperative cell of the UE;
the method comprises the steps that User Equipment (UE) receives a codebook sent by a home cell of the UE, wherein the codebook is obtained by jointly calculating SRS measurement results obtained by common measurement of the home cell and the cooperative cell;
and the UE sends a Physical Uplink Shared Channel (PUSCH) to the home cell and the cooperative cell according to the codebook.
5. A signal processing apparatus, comprising:
the first measuring module and the second measuring module are used for measuring a channel measurement reference signal SRS sent by User Equipment (UE);
the first computing module is also used for scheduling the UE to transmit by adopting the corresponding codebook;
the first receiving module and the second receiving module are used for jointly receiving a Physical Uplink Shared Channel (PUSCH) sent by the UE according to the codebook;
the first measurement module, the first calculation module, the first receiving module and the second calculation module are respectively located in the home cell and the second calculation module of the UE, and the second receiving module is located in the cooperative cell of the UE.
6. The apparatus of claim 5, wherein the apparatus further comprises:
and the determining module is positioned in the home cell and is used for determining one or more cooperative cells according to signals received by the one or more candidate cooperative cells from the UE.
7. The apparatus of claim 6, wherein the means for determining comprises:
the judging unit is positioned in the home cell and is used for judging whether the signal strength corresponding to the signals received by one or more candidate cooperative cells from the UE is greater than a preset threshold value or not;
and the selecting unit is positioned in the home cell and is used for selecting one or more candidate cooperative cells with the signal intensity larger than the preset threshold value as the cooperative cells by the home cell.
8. A signal transmitting apparatus, located in a user equipment UE, comprising:
the third receiving module is used for receiving a codebook sent by a home cell, wherein the codebook is obtained by jointly calculating the home cell and a cooperative cell;
a sending module, configured to send an uplink shared channel PUSCH to the home cell and the coordination cell according to the codebook;
the apparatus is further configured to send a channel measurement reference signal, SRS, to a home cell of the UE, where the SRS is used for common measurement by the home cell of the UE and a cooperating cell of the UE.
9. A storage medium having a computer program stored therein, wherein the computer program is arranged to perform the method of any of claims 1 to 3,4 when run.
10. An electronic device comprising a memory and a processor, characterized in that the memory has stored therein a computer program, the processor being arranged to run the computer program to perform the method of any of the claims 1 to 3, 4.
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| CN201811643606.1A CN111385823B (en) | 2018-12-29 | 2018-12-29 | Signal processing method and device |
| PCT/CN2019/129894 WO2020135868A1 (en) | 2018-12-29 | 2019-12-30 | Signal processing method and device |
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| CN102065557A (en) * | 2010-12-31 | 2011-05-18 | 中兴通讯股份有限公司 | Method and system for sending sounding reference signal (SRS) used in coordinated multi-point (CoMP) transmission system |
| CN102932932A (en) * | 2011-08-12 | 2013-02-13 | 中兴通讯股份有限公司 | Method and system for coordinated transmission of sounding reference signal (SRS) and physical uplink shared channel (PUSCH) |
| CN103326837A (en) * | 2012-03-19 | 2013-09-25 | 上海贝尔股份有限公司 | Method and device used for managing multipoint coordination |
| CN105122679A (en) * | 2013-04-15 | 2015-12-02 | Lg电子株式会社 | Methods and devices for transmitting sounding reference signal in wireless access system |
| CN103875292A (en) * | 2013-12-02 | 2014-06-18 | 华为技术有限公司 | Collaborative scheduling method and network equipment |
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| CN111385823A (en) | 2020-07-07 |
| WO2020135868A1 (en) | 2020-07-02 |
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