CN110087319B - Base station and system for allocating SRS resources according to QoS - Google Patents
Base station and system for allocating SRS resources according to QoS Download PDFInfo
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- CN110087319B CN110087319B CN201910360506.6A CN201910360506A CN110087319B CN 110087319 B CN110087319 B CN 110087319B CN 201910360506 A CN201910360506 A CN 201910360506A CN 110087319 B CN110087319 B CN 110087319B
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- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 8
- 238000005259 measurement Methods 0.000 description 8
- 238000013468 resource allocation Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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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
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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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
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Abstract
The invention discloses a base station and a system for allocating SRS resources according to QoS, wherein the base station comprises: the QoS statistical module is used for acquiring uplink QoS required by the service on each special bearer when the UE establishes the special bearers, and counting all the uplink QoS to obtain the QoS total demand of the UE; the allocation period calculation module is used for calculating a second allocation period of the SRS resource according to the QoS total demand; and the configuration parameter calculation module is used for configuring a first configuration parameter of the SRS resource according to a preset first allocation period or a second configuration parameter of the SRS resource according to a second allocation period when the UE establishes the default bearer, and sending the first configuration parameter or the second configuration parameter to the UE through an RRC message sent to the UE. The invention can reasonably distribute the SRS resource according to the QoS.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a base station and a system for allocating SRS resources according to QoS.
Background
In the existing LTE communication system, a cell allocates SRS (sounding reference signal) resources to a UE (User Equipment) in a connected state, so as to measure uplink channel quality of the UE.
SRS resource allocation is carried out according to a period, the shorter the period is, the more accurately the UE measures an air interface channel, and the more SRS resources required by the UE are; conversely, the longer the period is, the less SRS resources are required by the UE, and the less real-time the uplink channel quality measured by the base station is.
The existing SRS resource allocation strategy is to set a series of thresholds according to the number of UEs online in a cell, and the SRS resource allocation period is associated with the thresholds. In short, the period of SRS resource allocation increases as the number of UEs on-line in a cell increases, and this balances UE downlink measurement and cell specifications. However, this may cause that UEs with service types requiring frequent downlink measurements cannot obtain enough SRS resources, and UEs with service types requiring less downlink measurements obtain redundant SRS resources.
Disclosure of Invention
The invention mainly solves the technical problem of providing a base station and a system for allocating SRS resources according to QoS, which can reasonably allocate the SRS resources according to QoS.
In order to solve the technical problems, the invention adopts a technical scheme that: the base station for allocating the SRS resource according to the QoS is provided, and comprises a QoS statistic module, an allocation period calculation module and a configuration parameter calculation module: the QoS statistical module is used for acquiring uplink QoS required by the service on each special bearer when the user equipment UE establishes the special bearer, and counting all uplink QoS to obtain the QoS total requirement of the UE; the allocation period calculation module is configured to calculate a second allocation period of SRS resources according to the QoS total demand, where the larger the QoS total demand is, the shorter the second allocation period is, and the smaller the QoS total demand is, the longer the second allocation period is; the configuration parameter calculation module is configured to, when the UE establishes the default bearer, configure a first configuration parameter of the SRS resource according to a preset first allocation period, or configure a second configuration parameter of the SRS resource according to the second allocation period, and send the first configuration parameter or the second configuration parameter to the UE through an RRC message sent to the UE, so that the UE sends the SRS according to the first configuration parameter or the second configuration parameter.
Preferably, the base station further includes a monitoring module: the monitoring module is used for monitoring the change of the special bearer of the UE in real time; the QoS statistical module is also used for re-counting all uplink QoS to obtain the QoS total demand of the UE when the UE newly builds a special bearer, deletes the existing special bearer or adjusts the uplink QoS of the existing special bearer.
Preferably, the allocation period calculation module is specifically configured to calculate, according to a preset configuration table, an allocation period of SRS resources according to the QoS overall demand.
Preferably, the allocation period calculation module is further configured to update the configuration table according to a matching condition between specific data transmission of the base station and QoS requirements.
In order to solve the technical problem, the invention adopts another technical scheme that: a system for allocating SRS resources according to QoS is provided, comprising a UE and a base station of any of the preceding.
Different from the prior art, the invention has the beneficial effects that: by allocating the SRS resources to the UE aiming at the service of the UE, the service needs the UE with more frequent downlink measurement, more SRS resources can be obtained for feeding back CSI (Channel State Information, CSI, channel State Information) of a downlink Channel, the service needs the UE with less downlink measurement, and less SRS resources can be obtained, so that the SRS resources can be reasonably allocated according to QoS, and the SRS resources can be fully utilized.
Drawings
Fig. 1 is a schematic structural diagram of a base station for allocating SRS resources according to QoS according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a system for allocating SRS resources according to QoS according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1, a base station 10 for allocating SRS resources according to QoS according to an embodiment of the present invention includes a QoS statistics module 11, an allocation period calculation module 12, and a configuration parameter calculation module 13.
The QoS statistics module 11 is configured to, when the UE establishes the dedicated bearers, obtain uplink QoS required by the service on each dedicated bearer, and count all the uplink QoS to obtain a total QoS requirement of the UE. Among them, for the base station 10, the UE with which the radio link is established is an online UE. The uplink QoS can reflect the uplink transmission rate required by the service, and the larger the uplink QoS is, the larger the uplink transmission rate is, and the total QoS requirement is the sum of all the uplink QoS.
The allocation period calculating module 12 is configured to calculate a second allocation period of the SRS resources according to the total QoS demand, where the larger the total QoS demand is, the shorter the second allocation period is, the smaller the total QoS demand is, and the longer the second allocation period is. The allocation period calculation module 12 determines an uplink total transmission rate according to the QoS total demand, and then calculates a second allocation period of the SRS resource according to the uplink total transmission rate.
The configuration parameter calculation module 13 is configured to, when the UE20 establishes the default bearer, configure a first configuration parameter of the SRS resource according to a first preset allocation period, or configure a second configuration parameter of the SRS resource according to a second allocation period, and send the first configuration parameter or the second configuration parameter to the UE through an RRC message sent to the UE20, so that the UE sends the SRS according to the first configuration parameter or the second configuration parameter. The default bearer is a radio bearer established by the system itself when the UE and the base station complete the attachment and if there is no other data transmission. When the UE has a small amount of data to transmit, it can transmit directly on the default bearer. In this case, the UE needs to perform uplink measurement less, so the first allocation period may be a larger period. The RRC message is used to instruct the UE to perform an RRC connection reconfiguration process, and the configuration parameter calculation module 13 may send a corresponding configuration parameter in the RRC message to allocate SRS resources for the UE. The UE may calculate the position of the SRS resource according to the configuration parameter, and then transmit the SRS through the SRS resource at the position.
In this embodiment, the base station 10 further includes a monitoring module 14. The monitoring module 14 is configured to monitor a change of the dedicated bearer of the UE in real time; the QoS statistics module 11 is further configured to, when the UE creates a new dedicated bearer, deletes an existing dedicated bearer, or adjusts an uplink QoS of an existing dedicated bearer, re-count all uplink QoS to obtain a QoS total requirement of the UE.
In this embodiment, the allocation period calculating module 12 is specifically configured to calculate, according to a pre-established configuration table, an allocation period of SRS resources according to a total QoS requirement. Further, the allocation period calculating module 12 is further configured to update the configuration table according to a matching condition between specific data transmission of the base station and a QoS requirement, so as to provide a more accurate reference for subsequent SRS resource allocation.
Referring to fig. 2, the system for allocating SRS resources according to QoS according to an embodiment of the present invention includes the base station 10 and the UE20 of the foregoing embodiment.
Through the manner, the base station and the system for allocating the SRS resources according to the QoS allocate the SRS resources for the UE according to the service of the UE, the service needs the UE with frequent downlink measurement, more SRS resources can be obtained for feeding back CSI of a downlink channel, the service needs the UE with less downlink measurement, and less SRS resources can be obtained, so that the SRS resources can be allocated reasonably according to the QoS, and the SRS resources can be fully utilized.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. A base station for allocating SRS resources according to QoS is characterized by comprising a QoS statistic module, an allocation period calculation module and a configuration parameter calculation module:
the QoS statistical module is used for acquiring uplink QoS required by the service on each special bearer when the user equipment UE establishes the special bearer, and counting all uplink QoS to obtain the QoS total requirement of the UE;
the allocation period calculating module is configured to calculate a second allocation period of SRS resources according to the total QoS requirement, where the greater the total QoS requirement is, the shorter the second allocation period is, and the smaller the total QoS requirement is, the longer the second allocation period is;
the configuration parameter calculation module is configured to, when the UE establishes the default bearer, configure a first configuration parameter of the SRS resource according to a preset first allocation period, or configure a second configuration parameter of the SRS resource according to the second allocation period, and send the first configuration parameter or the second configuration parameter to the UE through an RRC message sent to the UE, so that the UE sends the SRS according to the first configuration parameter or the second configuration parameter.
2. The base station for allocating SRS resources according to QoS according to claim 1, wherein the base station further comprises a monitoring module:
the monitoring module is used for monitoring the change of the special bearer of the UE in real time;
the QoS statistical module is also used for re-counting all uplink QoS to obtain the QoS total demand of the UE when the UE newly builds a special bearer, deletes the existing special bearer or adjusts the uplink QoS of the existing special bearer.
3. The base station according to claim 1, wherein the allocation period calculation module is specifically configured to calculate, according to a pre-established configuration table, an allocation period of SRS resources according to the QoS overall demand.
4. The base station of claim 3, wherein the allocation period calculation module is further configured to update the configuration table according to a matching condition between a specific data transmission of the base station and the QoS requirement.
5. A system for allocating SRS resources according to QoS, comprising a UE and a base station according to any one of claims 1 to 4.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103002585A (en) * | 2012-12-13 | 2013-03-27 | 电信科学技术研究院 | Allocation method and device for community sounding reference signal (SRS) resources |
| CN103687025A (en) * | 2013-12-18 | 2014-03-26 | 武汉邮电科学研究院 | Resource allocation method used for LTE system |
| CN104798426A (en) * | 2012-12-28 | 2015-07-22 | 富士通株式会社 | Method, device, and system for transmitting channel information |
| CN107710665A (en) * | 2015-06-28 | 2018-02-16 | 梁平 | Channel condition information in wireless communication system obtains |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101848541B (en) * | 2009-03-27 | 2013-03-13 | 电信科学技术研究院 | Method and device for sending sounding reference signal |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103002585A (en) * | 2012-12-13 | 2013-03-27 | 电信科学技术研究院 | Allocation method and device for community sounding reference signal (SRS) resources |
| CN104798426A (en) * | 2012-12-28 | 2015-07-22 | 富士通株式会社 | Method, device, and system for transmitting channel information |
| CN103687025A (en) * | 2013-12-18 | 2014-03-26 | 武汉邮电科学研究院 | Resource allocation method used for LTE system |
| CN107710665A (en) * | 2015-06-28 | 2018-02-16 | 梁平 | Channel condition information in wireless communication system obtains |
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Effective date of registration: 20240410 Address after: No. 258 Heyou Road, Jiading District, Shanghai, March 2018 Patentee after: SHANGHAI HANXUN INFORMATION TECHNOLOGY CO.,LTD. Country or region after: China Address before: 5 / F, building 1, No.269, north section of Hupan Road, Tianfu New District, Chengdu, Sichuan 610000 Patentee before: CHENGDU ZHONGKE MICRO INFORMATION TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. Country or region before: China |