CN107018574B - SR channel of communication system - Google Patents
SR channel of communication system Download PDFInfo
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- CN107018574B CN107018574B CN201710291686.8A CN201710291686A CN107018574B CN 107018574 B CN107018574 B CN 107018574B CN 201710291686 A CN201710291686 A CN 201710291686A CN 107018574 B CN107018574 B CN 107018574B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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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
- H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
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Abstract
The SR channel of the communication system provided by the invention not only comprises load control SR resources used by load control users, common SR resources used by common data transmission users, fast scheduling SR resources used for fast scheduling users to make resource requests, but also comprises synchronous SR resources used for uplink synchronization. Therefore, the instability of uplink service caused by uplink desynchronization can be effectively reduced.
Description
Technical Field
The present invention relates to the field of communications, and more particularly, to an SR channel of a communication system.
Background
The authorized frequency points of the power communication network are discretely distributed on the frequency band of 223.525 MHz-231.65 MHz, and the total number is 40. The bandwidth of each authorized frequency point is 25KHz, and the authorized frequency points are called physical sub-bands. Wherein, 3 are used as synchronous sub-bands, and the rest 37 frequency points are used as service sub-bands. The UPpts (uplink pilot slot physical channel) location on each traffic subband is assigned as the SR (Scheduling Request) location, where 8 Preamble preambles are generated by cyclic shift. Currently, SrCycle (SR scheduling period) is divided into two cases, 40 radio frames and 80 radio frames.
If the SrCycle is 40 wireless frames, each cell has 40 SR resources. Fig. 1 is a diagram illustrating an SR channel structure of a current system with an SR scheduling period of 40 radio frames. Wherein, SR resources with SrOffset (SR resource number) of 0, 1, 2, 20, 21 and 22 are defined as load control SR resources and reserved for load control users; SR resources with SrOffset of 7, 15, 23, 31 and 39 are defined as fast scheduling SR resources and reserved as the fast scheduling SR resources; the remaining 29 SR resources are defined as normal SR resources, and are reserved as SR resources of normal data transmission users. In each 8 25ms radio frame, a cell may allocate a UPpts for SR transmission, and in which radio frame each cell transmits, the cell ID number modulo 8 may correspond to the frame number modulo 8. The Cell IDs modulo 8 are divided into 8 groups, and each group performs SR transmission in a corresponding radio frame, for example, the first group Cell1 may perform SR transmission in radio frames 1, 9, 17, 25, and 33. The silence frame is used for downlink synchronization.
If SrCycle is 80 radio frames, each cell has 80 SR resources. Since SrOffset has only 6 bits, only 64 SR resources can be allocated, and the last 16 SR resources cannot be used. SR resources of SrOffset ═ 0, 1, 2, 20, 21, 22, 40, 41, 42, 60, 61, and 62 are defined as load control SR resources, and are reserved for load control users; SR resources of SrOffset 7, 15, 23, 31, 39, 47, 55, 63 are defined as fast scheduling SR resources, and are reserved as fast scheduling SR resources; the remaining 44 SR resources are defined as normal SR resources, and are reserved as SR resources of normal data transmission users.
Currently, an SR channel is only used as a scheduling request, which easily causes uplink desynchronization caused by clock offset between a UE (User Equipment) and a base station or movement of the UE, and further affects stability of uplink service of a system.
Disclosure of Invention
In view of this, the present invention provides an SR channel of a communication system, which is intended to achieve the purpose of reducing uplink traffic instability caused by uplink desynchronization.
In order to achieve the above object, the following solutions are proposed:
an SR channel of a communication system, comprising:
the load control SR resource is used for load control users;
common SR resources used by common data transmission users;
fast scheduling SR resources used for fast scheduling users to make resource requests;
synchronous SR resources for uplink synchronization.
Preferably, the SR scheduling period is 40 radio frames,
the negative control SR resource is specifically as follows: SR resources with SrOffset of 0, 1, 2, 20, 21, 22;
the fast-tuning SR resource is specifically as follows: SR resources with SrOffset of 7, 15, 23, 31, 39;
the synchronous SR resource is specifically: SrOffset is any SR resource of 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30;
the common SR resource is specifically: SrOffset is SR resources of 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 32, 33, 34, 35, 36, 37, 38 that are not the synchronous SR resources.
Preferably, the synchronous SR resource specifically is: SrOffset is an SR resource of 19.
Preferably, the SR scheduling period is 80 radio frames,
the negative control SR resource is specifically as follows: SR resources with SrOffset of 0, 1, 2, 20, 21, 22, 40, 41, 42, 60, 61, 62;
the fast-tuning SR resource is specifically as follows: SR resources with SrOffset of 7, 15, 23, 31, 39, 47, 55, 63;
the synchronous SR resource is specifically: SrOffset is any SR resource of 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 32, 33, 34, 35, 36, 37, 38, 43, 44, 45, 46, 48, 49, 50, 51, 52, 53, 54;
the common SR resource is specifically: SrOffset is SR resources of 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 32, 33, 34, 35, 36, 37, 38, 43, 44, 45, 46, 48, 49, 50, 51, 52, 53, 54, 56, 57, 58, 59 that are not the synchronous SR resources.
Preferably, the synchronous SR resource specifically is: SrOffset is an SR resource of 19.
Compared with the prior art, the technical scheme of the invention has the following advantages:
the SR channel of the communication system provided by the above technical solution includes not only the load control SR resource used by the load control user, the common SR resource used by the common data transfer user, and the fast scheduling SR resource used by the fast scheduling user to make a resource request, but also the synchronous SR resource used for uplink synchronization. Therefore, the instability of uplink service caused by uplink desynchronization can be effectively reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a conventional SR channel;
fig. 2 is a schematic structural diagram of an SR channel of a communication system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an SR channel of another communication system 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present embodiment provides an SR channel of a communication system, and as shown in fig. 2, the SR channel includes:
the load control SR resource is used for load control users;
common SR resources used by common data transmission users;
fast scheduling SR resources used for fast scheduling users to make resource requests;
synchronous SR resources for uplink synchronization.
By setting the synchronous SR resource of the uplink synchronization of the user, the instability of the uplink service caused by the uplink desynchronization is effectively reduced.
Referring to fig. 2, the SR scheduling period is 40 radio frames, the radio frames 1, 9, 17, 25 and 33 correspond to a Cell of the group Cell1, the radio frames 2, 10, 18, 26 and 34 correspond to a Cell of the group Cell2, the radio frames 3, 11, 19, 27 and 35 correspond to a Cell of the group Cell3, the radio frames 4, 12, 20, 28 and 36 correspond to a Cell of the group Cell4, the radio frames 5, 13, 21, 29 and 37 correspond to a Cell of the group Cell5, the radio frames 6, 14, 22, 30 and 38 correspond to a Cell of the Cell6, the radio frames 7, 15, 23, 31 and 39 correspond to a Cell of the Cell7, and the radio frames 8, 16, 24, 32 and 40 correspond to a Cell of the Cell 8. The radio frame 40 is a silence frame used for downlink synchronization. There are 8 SR resources per radio frame, i.e., 8 cyclic shifts. Each Cell 1-7 has 8 × 5-40 SR resources, and the number SrOffset of the 40 SR resources is 0-39; for Cell8, radio frame 40 is used for downlink synchronization, and there are no SR resources available, and there are only 8 × 4 — 32 SR resources actually.
The negative control SR resource is concretely an SR resource with SrOffset of 0, 1, 2, 20, 21 and 22; the fast-tuning SR resource is specifically an SR resource with SrOffset of 7, 15, 23, 31 and 39; the synchronous SR resource is specifically an SR resource with SrOffset of 19; the common SR resource is specifically an SR resource whose SrOffset is 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 24, 25, 26, 27, 28, 29, 30, 32, 33, 34, 35, 36, 37, 38. It will be appreciated that the common SR resource for Cell8 is in fact specifically the SR resource with SrOffset of 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 24, 25, 26, 27, 28, 29, 30.
The selection of the synchronous SR resource may be any one of 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19, 24, 25, 26, 27, 28, 29, and 30 SR resources. Fig. 2 shows a schematic diagram of SR resource with SrOffset of 19. The common SR resource is an SR resource of an SR resource whose SrOffset is 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 24, 25, 26, 27, 28, 29, 30, 32, 33, 34, 35, 36, 37, 38 that is not a synchronous SR resource. Compared with the existing SR channel, the SR channel provided by the embodiment reduces one common SR resource, the load control SR resource and the fast-tuning SR resource are consistent with the existing SR channel, and the compatibility is better.
Referring to fig. 3, the SR scheduling period is 80 radio frames, and since SrOffset has only 6 bits, only 64 SR resources can be allocated, and the last 16 SR resources (not shown) cannot be used. Radio frames 1, 9, 17, 25, 33, 41, 49 and 57 correspond to cells of group Cell1, radio frames 2, 10, 18, 26, 34, 42, 50 and 58 correspond to cells of group Cell2, radio frames 3, 11, 19, 27, 35, 43, 51 and 59 correspond to cells of group Cell3, radio frames 4, 12, 20, 28, 36, 44, 52 and 60 correspond to cells of group 4, radio frames 5, 13, 21, 29, 37, 45, 53 and 61 correspond to cells of group Cell5, radio frames 6, 14, 22, 30, 38, 46, 54 and 62 correspond to cells of Cell6, radio frames 7, 15, 23, 31, 39, 47, 55 and 63 correspond to cells of Cell7, and radio frames 8, 16, 24, 32, 40, 48, 56 and 64 correspond to cells of Cell 8. The radio frame 64 is a silence frame used for downlink synchronization. There are 8 SR resources per radio frame, i.e., 8 cyclic shifts. Each Cell 1-7 has 8 × 8-64 SR resources, and the number SrOffset of the 64 SR resources is 0-63; for Cell8, radio frame 64 is used for downlink synchronization, and there are no SR resources available, and there are only 8 × 7 — 56 SR resources actually.
The negative control SR resource is concretely an SR resource with SrOffset of 0, 1, 2, 20, 21, 22, 40, 41, 42, 60, 61 and 62; the fast-tuning SR resource is the SR resource with Sroffset of 7, 15, 23, 31, 39, 47, 55 and 63; the synchronous SR resource is specifically: SR resource with SrOffset of 19; the common SR resource is specifically an SR resource whose SrOffset is 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 24, 25, 26, 27, 28, 29, 30, 32, 33, 34, 35, 36, 37, 38, 43, 44, 45, 46, 48, 49, 50, 51, 52, 53, 54, 56, 57, 58, 59.
Note that the selection of the synchronous SR resource may be any one of SR resources of 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 32, 33, 34, 35, 36, 37, 38, 43, 44, 45, 46, 48, 49, 50, 51, 52, 53, and 54. Fig. 3 shows a schematic diagram of SR resource with SrOffset of 19. The common SR resource is an SR resource of which SrOffset is 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 32, 33, 34, 35, 36, 37, 38, 43, 44, 45, 46, 48, 49, 50, 51, 52, 53, 54, 56, 57, 58, 59, the non-synchronous SR resource. Compared with the existing SR channel, the SR channel provided by the embodiment reduces one common SR resource, the load control SR resource and the fast-tuning SR resource are consistent with the existing SR channel, and the compatibility is better.
In this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. A method for performing uplink scheduling by using an uplink Scheduling Request (SR) channel in a power communication system is characterized in that the SR channel is used for performing uplink synchronization;
wherein the SR channel comprises:
the load control SR resource is used for load control users;
common SR resources used by common data transmission users;
fast scheduling SR resources used for fast scheduling users to make resource requests;
a synchronous SR resource for uplink synchronization;
the SR scheduling period is 40 radio frames,
the negative control SR resource is specifically as follows: SR resources whose SR resource numbers SrOffset are 0, 1, 2, 20, 21, 22;
the fast-tuning SR resource is specifically as follows: SR resources with SrOffset of 7, 15, 23, 31, 39;
the synchronous SR resource is specifically: SrOffset is any SR resource of 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30;
the common SR resource is specifically: SrOffset is SR resources of 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 32, 33, 34, 35, 36, 37, 38 that are not the synchronous SR resources.
2. The method of claim 1, wherein the synchronous SR resources are specifically: SrOffset is an SR resource of 19.
3. A method for performing uplink scheduling by using an uplink Scheduling Request (SR) channel in a power communication system is characterized in that the SR channel is used for performing uplink synchronization;
wherein the SR channel comprises:
the load control SR resource is used for load control users;
common SR resources used by common data transmission users;
fast scheduling SR resources used for fast scheduling users to make resource requests;
a synchronous SR resource for uplink synchronization;
the SR scheduling period is 80 radio frames,
the negative control SR resource is specifically as follows: SR resources whose SR resource number SrOffset is 0, 1, 2, 20, 21, 22, 40, 41, 42, 60, 61, 62;
the fast-tuning SR resource is specifically as follows: SR resources with SrOffset of 7, 15, 23, 31, 39, 47, 55, 63;
the synchronous SR resource is specifically: SrOffset is any SR resource of 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 32, 33, 34, 35, 36, 37, 38, 43, 44, 45, 46, 48, 49, 50, 51, 52, 53, 54;
the common SR resource is specifically: SrOffset is SR resources of 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 32, 33, 34, 35, 36, 37, 38, 43, 44, 45, 46, 48, 49, 50, 51, 52, 53, 54, 56, 57, 58, 59 that are not the synchronous SR resources.
4. The method of claim 3, wherein the synchronous SR resources are specifically: SrOffset is an SR resource of 19.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102843180A (en) * | 2011-06-24 | 2012-12-26 | 普天信息技术研究院有限公司 | Method of data transmission in channel |
| CN103260148A (en) * | 2012-02-21 | 2013-08-21 | 普天信息技术研究院有限公司 | Method and device for distinguishing users in narrow-band system |
| CN104080185A (en) * | 2013-03-29 | 2014-10-01 | 普天信息技术研究院有限公司 | Wireless resource scheduling method suitable for TCP (Transmission Control Protocol)/IP (Internet Protocol) service |
| CN104244430A (en) * | 2013-06-09 | 2014-12-24 | 普天信息技术研究院有限公司 | Rapid scheduling method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20160192390A1 (en) * | 2014-12-30 | 2016-06-30 | Electronics And Telecommunications Research Institute | Method for transmitting data based on limited contention |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102843180A (en) * | 2011-06-24 | 2012-12-26 | 普天信息技术研究院有限公司 | Method of data transmission in channel |
| CN103260148A (en) * | 2012-02-21 | 2013-08-21 | 普天信息技术研究院有限公司 | Method and device for distinguishing users in narrow-band system |
| CN104080185A (en) * | 2013-03-29 | 2014-10-01 | 普天信息技术研究院有限公司 | Wireless resource scheduling method suitable for TCP (Transmission Control Protocol)/IP (Internet Protocol) service |
| CN104244430A (en) * | 2013-06-09 | 2014-12-24 | 普天信息技术研究院有限公司 | Rapid scheduling method |
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