CN112235839A - D2D wireless resource multiplexing sharing management method - Google Patents
D2D wireless resource multiplexing sharing management method Download PDFInfo
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- CN112235839A CN112235839A CN202010983841.4A CN202010983841A CN112235839A CN 112235839 A CN112235839 A CN 112235839A CN 202010983841 A CN202010983841 A CN 202010983841A CN 112235839 A CN112235839 A CN 112235839A
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- 238000012544 monitoring process Methods 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims description 15
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- 230000010267 cellular communication Effects 0.000 description 4
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/0085—Hand-off measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
Abstract
The invention provides a method for multiplexing and sharing management of D2D wireless resources, which comprises the following steps: s1, monitoring the cellular network transmitting power and the received signal strength of the UE terminal and the received signal strength of the D2D terminal in real time; s2, judging whether the received signal strength deterioration of the D2D terminal is larger than a first specific threshold value; s3, judging whether the received signal strength deterioration of the UE cellular network is larger than a second specific threshold value; s4, switching the multiplex frequency band to the uplink resource of the cellular network in the cell or the uplink/downlink resource frequency band between the cells; s5, further judging whether the intensity of the increase of the transmitting power of the UE cellular network is larger than a third specific threshold value; s6, switching the multiplex frequency band to the down/up resource of the cellular network between the cells or the up/down resource frequency band in the cells; and S7, switching the multiplexing frequency band to the downlink resource of the cellular network in the cell or the uplink/downlink resource frequency band between the cells. The invention can improve the communication capacity, effectively reduce the system interference and improve the user experience.
Description
Technical Field
The invention belongs to the technical field of communication, and particularly relates to a D2D wireless resource multiplexing sharing management method.
Background
5G D2D (Device-to-Device) terminal direct technology means that a nearby terminal can perform data transmission by direct communication in a short distance without forwarding through a base station. Due to the advantages of short distance and direct connection, the D2D technology can improve the use efficiency of wireless resources and expand the network coverage, so a great deal of research is obtained in the construction of 5G, the D2D technology can be applied to more scenes in the future, and the user experience is improved.
The wireless resources used by the 5G D2D communication technology are commonly available in two ways: 1. an orthogonal mode; 2 multiplexing mode. The orthogonal sharing of the cellular communication radio resources uses the unused cellular communication resources, and is suitable for the use in the case of idle radio resources; the multiplexing mode is to multiplex the authorized frequency band in a reasonable mode, efficiently utilize the wireless spectrum and is suitable for being used in a scene with higher wireless resource use. The orthogonal resource sharing method can make full use of the control of the base station, but the sharing method uses only the unused resources of the cellular communication, and thus has a certain limitation in the communication capacity. The way of multiplexing cellular radio resources is more flexible in resource usage, and can bring improvement of communication capacity to the system, but a more complex interference form is introduced, so that it is also necessary to consider using a reasonable way to manage resource multiplexing, and disordered resource usage not only cannot improve system performance, but may generate strong interference due to recombination of the same resources.
In summary, there is a need to solve the above-mentioned technical problem, by detecting the transmit power and the received signal status indicator of the D2D terminal cellular network service and the received signal status indicator of the D2D terminal to detect and calculate the interference degree of the D2D terminal multiplexing resource, so as to select the switching of the multiplexing resource frequency band, especially the switching between the frequency band in the multiplexing cell and the frequency band between the multiplexing cells. The invention can monitor the interference condition of the D2D terminal multiplexing frequency in real time to adjust the multiplexing frequency in real time, and can effectively reduce the system interference and improve the user experience while improving the communication capacity, thereby overcoming the problems.
Disclosure of Invention
In view of the above shortcomings in the prior art, the present invention aims to provide a method for multiplexing and sharing management of D2D wireless resources, which aims to solve the problem of strong interference caused by the reorganization of the same resources in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for managing multiplexing and sharing of D2D wireless resources is characterized by comprising the following steps:
s1, monitoring the cellular network transmitting power and the received signal strength of the UE terminal and the received signal strength of the D2D terminal in real time, and carrying out statistical recording;
s2, judging whether the received signal strength deterioration of the D2D terminal is larger than a first specific threshold value, if not, returning to the step S1, if yes, returning to the step S3;
s3, judging whether the received signal strength deterioration of the UE cellular network is larger than a second specific threshold, if so, switching to S4, and if not, switching to S5;
s4, when detecting that the downlink resource of the cellular network in the multiplexing cell is interfered, switching the multiplexing frequency band to the uplink resource of the cellular network in the cell or the uplink/downlink resource frequency band between cells;
s5, further judging whether the intensity of the increase of the transmitting power of the UE cellular network is larger than a third specific threshold, if not, switching to S6, and if so, switching to S7;
s6, when detecting the interference of the uplink/downlink resources of the cellular network among the multiplexing cells, switching the multiplexing frequency band to the downlink/uplink resources of the cellular network among the cells or the uplink/downlink resource frequency band in the cells;
s7, when monitoring that the uplink resource of the cellular network in the multiplexing cell generates interference, switching the multiplexing frequency band to the downlink resource of the cellular network in the cell or the uplink/downlink resource frequency band between cells.
In some embodiments, when multiplexing the uplink resources of the cellular network in the cell, the transmission power of the cellular network of the UE is increased, the received signal strength of the D2D terminal is weakened, the error rate is increased, and the signal-to-interference ratio is reduced.
In some embodiments, when the downlink resources of the cellular network in the cell are multiplexed, the received signal strength of the cellular network of the UE and the D2D terminal is weakened, the error rate is increased, and the signal to interference ratio is reduced.
In some embodiments, when multiplexing the inter-cell cellular network uplink resources, the received signal strength of the D2D terminal becomes weaker, the error rate increases, and the signal-to-interference ratio decreases.
In some embodiments, when multiplexing downlink resources of the inter-cell cellular network, the received signal strength of the D2D terminal becomes weaker, the error rate increases, and the signal-to-interference ratio decreases.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a method for multiplexing and sharing management of D2D wireless resources, which comprises the following steps: s1, monitoring the cellular network transmitting power and the received signal strength of the UE terminal and the received signal strength of the D2D terminal in real time, and carrying out statistical recording; s2, judging whether the received signal strength deterioration of the D2D terminal is larger than a first specific threshold value, if not, returning to the step S1, if yes, returning to the step S3; s3, judging whether the received signal strength deterioration of the UE cellular network is larger than a second specific threshold, if so, switching to S4, and if not, switching to S5; s4, when detecting that the downlink resource of the cellular network in the multiplexing cell is interfered, switching the multiplexing frequency band to the uplink resource of the cellular network in the cell or the uplink/downlink resource frequency band between cells; s5, further judging whether the intensity of the increase of the transmitting power of the UE cellular network is larger than a third specific threshold, if not, switching to S6, and if so, switching to S7; s6, when detecting the interference of the uplink/downlink resources of the cellular network among the multiplexing cells, switching the multiplexing frequency band to the downlink/uplink resources of the cellular network among the cells or the uplink/downlink resource frequency band in the cells; s7, when monitoring that the uplink resource of the cellular network in the multiplexing cell generates interference, switching the multiplexing frequency band to the downlink resource of the cellular network in the cell or the uplink/downlink resource frequency band between cells. The invention can monitor the interference condition of the D2D terminal multiplexing frequency in real time to adjust the multiplexing frequency in real time, and can effectively reduce the system interference and improve the user experience while improving the communication capacity.
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FIG. 1 is a flow chart of a preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the method for multiplexing and sharing D2D radio resources provided by the present invention includes the following steps:
s1, monitoring the cellular network transmitting power and the received signal strength of the UE terminal and the received signal strength of the D2D terminal in real time, and carrying out statistical recording;
s2, judging whether the received signal strength deterioration of the D2D terminal is larger than a first specific threshold value, if not, returning to the step S1, if yes, returning to the step S3;
s3, judging whether the received signal strength deterioration of the UE cellular network is larger than a second specific threshold, if so, switching to S4, and if not, switching to S5;
s4, when detecting that the downlink resource of the cellular network in the multiplexing cell is interfered, switching the multiplexing frequency band to the uplink resource of the cellular network in the cell or the uplink/downlink resource frequency band between cells;
s5, further judging whether the intensity of the increase of the transmitting power of the UE cellular network is larger than a third specific threshold, if not, switching to S6, and if so, switching to S7;
s6, when detecting the interference of the uplink/downlink resources of the cellular network among the multiplexing cells, switching the multiplexing frequency band to the downlink/uplink resources of the cellular network among the cells or the uplink/downlink resource frequency band in the cells;
s7, when monitoring that the uplink resource of the cellular network in the multiplexing cell generates interference, switching the multiplexing frequency band to the downlink resource of the cellular network in the cell or the uplink/downlink resource frequency band between cells.
Specifically, by monitoring the cellular network transmission power, the received signal strength (including the bit error rate, the signal-to-interference ratio, etc.) of the UE terminal and the received signal strength (including the bit error rate, the signal-to-interference ratio, etc.) of the D2D terminal in real time, if the transmission power increases to a certain threshold in a certain time period and the signal strength deteriorates to a certain threshold, the D2D terminal starts the switching of the multiplexing resources, the switching may select the switching of the uplink and downlink frequency bands in the cell, or the switching of the frequency bands between the cells may be adopted, and the main four scenarios of the D2D terminal when multiplexing the cellular communication frequency bands are: 1. multiplexing cellular network uplink resources in a cell; 2. multiplexing cellular network downlink resources in a cell; 3. multiplexing the uplink resources of the cellular network among the cells; 4. multiplexing downlink resources of the cellular network among the cells; the four multiplexing modes of D2D all generate mutual interference with the cellular network.
In some embodiments, when multiplexing the uplink resources of the cellular network in the cell, the transmission power of the cellular network of the UE is increased, the received signal strength of the D2D terminal is weakened, the error rate is increased, and the signal-to-interference ratio is reduced.
Specifically, multiplexing cellular network uplink resources in a cell, wherein the transmission of a D2D terminal generates interference on the reception of a base station; the transmissions of the cellular users may interfere with the reception of the D2D terminal; in this state, the interference caused by the reception of the base station and the reception of the D2D terminal can be measured by the cellular network transmission power of the UE and the received signal strength of the D2D terminal, and at this time, the transmission power of the cellular network of the UE is increased, the received signal strength of the D2D terminal is weakened, the error rate is increased, and the signal-to-interference ratio is reduced.
In some embodiments, when the downlink resources of the cellular network in the cell are multiplexed, the received signal strength of the cellular network of the UE and the D2D terminal is weakened, the error rate is increased, and the signal to interference ratio is reduced.
Specifically, multiplexing cellular network downlink resources in a cell, wherein the emission of a D2D terminal causes interference to the reception of cellular users; the transmission of the base station may interfere with the reception of the D2D terminal; in this state, the reception of the cellular user and the reception of the D2D terminal cause interference, which can be measured by the received signal strength of the UE cellular network and the D2D terminal, when the received signal strength of the UE cellular network and the D2D terminal becomes weak, the error rate increases, and the signal-to-interference ratio decreases.
In some embodiments, when multiplexing the inter-cell cellular network uplink resources, the received signal strength of the D2D terminal becomes weaker, the error rate increases, and the signal-to-interference ratio decreases.
Specifically, multiplexing the uplink resources of the inter-cell cellular network, wherein the transmission of a D2D terminal can generate interference on the reception of a neighboring cell base station; the transmission of the neighboring cell users may cause interference to the reception of the D2D terminal; in this state, the interference caused by the reception of the neighboring base station and the reception of the D2D terminal may be measured by the received signal strength of the D2D terminal, and at this time, the received signal strength of the D2D terminal becomes weak, the error rate increases, and the signal-to-interference ratio decreases.
In some embodiments, when multiplexing downlink resources of the inter-cell cellular network, the received signal strength of the D2D terminal becomes weaker, the error rate increases, and the signal-to-interference ratio decreases.
Specifically, multiplexing downlink resources of the inter-cell cellular network: the transmission of the D2D terminal may cause interference to the reception of neighboring cell users; the transmission of the neighboring base station causes interference to the reception of the D2D terminal; in this state, the interference caused by the reception of the neighboring cell users and the reception of the D2D terminal can be measured by the received signal strength of the D2D terminal, and at this time, the received signal strength of the D2D terminal becomes weak, the error rate increases, and the signal-to-interference ratio decreases.
The 5G terminal can perform D2D communication and interaction of cellular network service data, detect the change of the current scene and the target scene for switching through the change of cellular network parameters and D2D direct connection communication indexes, and switch the multiplexing frequency band when a certain threshold value condition is met, wherein the switching can be switching between an uplink frequency band and a downlink frequency band in a selected cell, or switching between frequency bands in cells, so that the communication capacity is improved, the system interference can be effectively reduced, and the user experience is improved.
In summary, the working principle of the invention is as follows:
the invention provides a method for multiplexing and sharing management of D2D wireless resources, which comprises the following steps: s1, monitoring the cellular network transmitting power and the received signal strength of the UE terminal and the received signal strength of the D2D terminal in real time, and carrying out statistical recording; s2, judging whether the received signal strength deterioration of the D2D terminal is larger than a first specific threshold value, if not, returning to the step S1, if yes, returning to the step S3; s3, judging whether the received signal strength deterioration of the UE cellular network is larger than a second specific threshold, if so, switching to S4, and if not, switching to S5; s4, when detecting that the downlink resource of the cellular network in the multiplexing cell is interfered, switching the multiplexing frequency band to the uplink resource of the cellular network in the cell or the uplink/downlink resource frequency band between cells; s5, further judging whether the intensity of the increase of the transmitting power of the UE cellular network is larger than a third specific threshold, if not, switching to S6, and if so, switching to S7; s6, when detecting the interference of the uplink/downlink resources of the cellular network among the multiplexing cells, switching the multiplexing frequency band to the downlink/uplink resources of the cellular network among the cells or the uplink/downlink resource frequency band in the cells; s7, when monitoring that the uplink resource of the cellular network in the multiplexing cell generates interference, switching the multiplexing frequency band to the downlink resource of the cellular network in the cell or the uplink/downlink resource frequency band between cells. The invention can monitor the interference condition of the D2D terminal multiplexing frequency in real time to adjust the multiplexing frequency in real time, and can effectively reduce the system interference and improve the user experience while improving the communication capacity.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.
Claims (5)
1. A method for managing multiplexing and sharing of D2D wireless resources is characterized by comprising the following steps:
s1, monitoring the cellular network transmitting power and the received signal strength of the UE terminal and the received signal strength of the D2D terminal in real time, and carrying out statistical recording;
s2, judging whether the received signal strength deterioration of the D2D terminal is larger than a first specific threshold value, if not, returning to the step S1, if yes, returning to the step S3;
s3, judging whether the received signal strength deterioration of the UE cellular network is larger than a second specific threshold, if so, switching to S4, and if not, switching to S5;
s4, when detecting that the downlink resource of the cellular network in the multiplexing cell is interfered, switching the multiplexing frequency band to the uplink resource of the cellular network in the cell or the uplink/downlink resource frequency band between cells;
s5, further judging whether the intensity of the increase of the transmitting power of the UE cellular network is larger than a third specific threshold, if not, switching to S6, and if so, switching to S7;
s6, when detecting the interference of the uplink/downlink resources of the cellular network among the multiplexing cells, switching the multiplexing frequency band to the downlink/uplink resources of the cellular network among the cells or the uplink/downlink resource frequency band in the cells;
s7, when monitoring that the uplink resource of the cellular network in the multiplexing cell generates interference, switching the multiplexing frequency band to the downlink resource of the cellular network in the cell or the uplink/downlink resource frequency band between cells.
2. The method for multiplexing sharing management of D2D radio resources according to claim 1, wherein when multiplexing the uplink resources of cellular network in cell, the transmission power of UE cellular network is increased, the received signal strength of D2D terminal is weakened, the error rate is increased, and the signal to interference ratio is decreased.
3. The method for multiplexing sharing management of D2D radio resources according to claim 1, wherein the received signal strength of UE cellular network and D2D terminal is weakened, the error rate is increased, and the signal to interference ratio is decreased when multiplexing the downlink resources of cellular network in cell.
4. The method for multiplexing sharing management of D2D radio resources according to claim 1, wherein the received signal strength of D2D terminal is weakened, the error rate is increased, and the signal to interference ratio is decreased when multiplexing the intercell cellular network uplink resources.
5. The method for multiplexing shared management of D2D radio resources of claim 1, wherein when multiplexing downlink resources of the intercell cellular network, the received signal strength of D2D terminal is weakened, the error rate is increased, and the signal-to-interference ratio is decreased.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013139041A1 (en) * | 2012-03-23 | 2013-09-26 | Renesas Mobile Corporation | Device-to-device resource allocation method and apparatus |
| CN104335656A (en) * | 2012-05-25 | 2015-02-04 | 瑞典爱立信有限公司 | Interference management for D2D system |
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- 2020-09-18 CN CN202010983841.4A patent/CN112235839A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013139041A1 (en) * | 2012-03-23 | 2013-09-26 | Renesas Mobile Corporation | Device-to-device resource allocation method and apparatus |
| CN104335656A (en) * | 2012-05-25 | 2015-02-04 | 瑞典爱立信有限公司 | Interference management for D2D system |
Non-Patent Citations (1)
| Title |
|---|
| 张胜南: "蜂窝网络覆盖下的D2D通信研究", 《软件导刊》 * |
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