CN101272615B - Transmission method and device for resource position field in resource allocation signaling - Google Patents
Transmission method and device for resource position field in resource allocation signaling Download PDFInfo
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Abstract
The invention relates to a method for transmitting resource location field in resource assignment signaling and a device thereof. The method comprises the following steps: a base station determines the smallest size of the resource location field in the resource assignment signaling according to system bandwidth and width of guard band; the base station adds the information of the resource location to the resource assignment signaling according to the determined smallest size; the base station sends the resource assignment signaling in a downlink channel; the terminal gets the starting location and/or end location of authorization resource in an uplink channel and/or the downlink channel according to the resource assignment signaling. The device consists of a size determining module, an adding module for information of resource location and a signaling sending and receiving module. The method and the device of the invention can determine the size of the resource location field in the resource assignment signaling according to the situation of the system bandwidth so as to effectively improve the use efficiency of L1/L2 control channel.
Description
Technical field
The present invention relates to the communications field, relate in particular to resource position field transmission method and device in the resource allocation signal.
Background technology
3GPP LTE (third generation affiliate's Long Term Evolution) system mainly is made up of terminal, base station and core net, and is as shown in Figure 1.Wherein, the connection of logic or physics can be arranged as required between the base station, the network of being made up of the base station is called RAN (Radio Access Network wireless access network), is responsible for the Access Layer affairs, such as the management of Radio Resource; The Radio Resource of up-downgoing is responsible for scheduling by the mode of shared channel by the base station.The base station is connected with core net, and each base station can be connected with one or more than one core net node (CN), and core net is responsible for the Non-Access Stratum affairs, such as charging, location management etc.The terminal be meant can with the equipment of network communication, such as mobile phone or notebook computer etc., each terminal usually only is connected to a base station in the network on up direction.
In existing 3GPP LTE system,, adopt the mode of base station scheduling to control the uplink and downlink transmission of different terminals, to improve channel utilization for the uplink and downlink shared channel.In 3GPP LTE system, as a Physical Resource Block (PRB), in a sub-frame, PRB is the least unit of uplink and downlink scheduling with 12 number of sub-carrier.The transmission on shared channel of dispatching uplink and downlink data is come according to the service quality (QoS) of different business in the base station; And the authorization message of in the several OFDM of the beginning of descending sub frame (Orthogonal Frequency DivisionMultiplexing, OFDM) symbol, indicating uplink and downlink to dispatch with the L1/L2 control channel.Usually, authorization message comprises resource location, resource size and modulation coding mode (MCS) etc.Terminal (UE) judges whether the needs transceive data and how to carry out modulation and encoding and decoding according to the L1/L2 control channel.The indication of uplink and downlink scheduling authorization possibly be incorporated in the same L1/L2 control channel to be transmitted, and also possibly separately transmit.Fig. 2 illustrates the exemplary block diagram of a sub-frame in the 3GPP LTE system.
At present, 3GPP does not also provide the form of scheduling resource assignment signalling, and uplink and downlink scheduling authorization indication certainly all must comprise resource position field, with the original position of authorization by direction resource.Because each bit in the L1/L2 control channel of carrying scheduling resource assignment signalling is all very valuable, therefore, should reduce the scheduling resource assignment signalling as much as possible.
Summary of the invention
The purpose of this invention is to provide resource position field transmission method and device in a kind of resource allocation signal of the utilization ratio that can effectively improve the L1/L2 control channel.
For realizing above-mentioned purpose, the resource position field transmission method in the resource allocation signal of the present invention may further comprise the steps: step S302, and the minimum dimension of the resource position field in the resource allocation signal is confirmed in the base station according to system bandwidth and protection frequency bandwidth; Step S304, add resource location information in the resource allocation signal to according to determined minimum dimension the base station; Step S306, resource allocation signal is sent at down channel in the base station, and the terminal obtains the original position and/or the end position of authorization resources in up channel and/or down channel according to resource allocation signal.
Wherein, step S302 comprises: step S3022, obtain the quantity of the Physical Resource Block in the sub-frame according to system bandwidth and protection frequency bandwidth; And step S3024, obtain the minimum dimension of resource position field needs in the resource allocation signal according to the quantity of the Physical Resource Block that obtains.
Wherein, confirm the quantity of the Physical Resource Block in the sub-frame according to following formula:
Wherein, N
PRBBe the PRB quantity in the sub-frame; B
SystemAnd B
GuardBe respectively system bandwidth and system protection bandwidth, unit is kHz; B
PRBIt is the frequency bandwidth of a PRB;
Expression rounds downwards.
Confirm the minimum dimension of resource position field needs in the resource allocation signal according to following formula:
R
Field-sizeBe the minimum dimension that resource position field in the scheduling resource assignment signalling needs, unit is bit; N
PRBBe the PRB quantity in the sub-frame; B
SystemAnd B
GuardBe respectively system bandwidth and system protection bandwidth, unit is kHz; B
PRBIt is the frequency bandwidth of a PRB;
Expression rounds downwards;
Expression rounds up.Said resource location is PRB starting position and/or end position and/or end position.
For solving the problems of the technologies described above; The present invention provides the transmitting device of the resource position field in a kind of resource allocation signal simultaneously; Said device comprises: the size determination module is used for confirming the minimum dimension of the resource position field of resource allocation signal according to system bandwidth and protection frequency bandwidth; Resource location information is added module, is used for adding resource location information to resource allocation signal according to determined minimum dimension; Signaling is sent and receiver module, be used for the base station according to scheduling result in down channel transmission resource allocation signaling, and the terminal obtains the original position of authorization resources in up channel and/or down channel according to resource allocation signal.
Wherein, the size determination module comprises: Resource Block quantity determination module is used for obtaining the quantity of the Physical Resource Block of a sub-frame according to system bandwidth and protection frequency bandwidth; And resource location domain sizes determination module, obtain the minimum dimension of resource position field needs in the resource allocation signal according to the quantity of the Physical Resource Block that obtains.
Wherein, Resource Block quantity determination module is confirmed the quantity of the Physical Resource Block in the sub-frame according to following formula:
Wherein, N
PRBBe the PRB quantity in the sub-frame; B
SystemAnd B
GuardBe respectively system bandwidth and system protection bandwidth, unit is kHz; B
PRBIt is the frequency bandwidth of a PRB;
Expression rounds downwards.
Wherein, resource location domain sizes determination module is confirmed the minimum dimension of resource position field needs in the resource allocation signal according to following formula:
Wherein, R
Field-sizeBe the minimum dimension that resource position field in the scheduling resource assignment signalling needs, unit is bit; N
PRBBe the PRB quantity in the sub-frame; B
SystemAnd B
GuardBe respectively system bandwidth and system protection bandwidth, unit is kHz; B
PRBIt is the frequency bandwidth of a PRB;
Expression rounds downwards;
Expression rounds up.Said resource location is PRB starting position and/or end position.
Above-mentioned resource position field transmission method and device are used for the LTE system.
The present invention proposes resource position field transmission method and device in a kind of resource allocation signal, confirm the size of resource position field in the scheduling resource assignment signalling, thereby improve the utilization ratio of L1/L2 control channel effectively according to the system bandwidth situation.
Description of drawings
Fig. 1 is the structure chart of 3GPP LTE system;
Fig. 2 is the exemplary block diagram of a sub-frame in the 3GPP LTE system;
Fig. 3 is the flow chart of the resource position field transmission method in the resource allocation signal according to an embodiment of the invention;
Fig. 4 is the structure chart of the resource position field transmitting device in the resource allocation signal according to an embodiment of the invention;
Fig. 5 is the chart of scheduling resource assignment signalling form according to an embodiment of the invention.
Embodiment
Below in conjunction with corresponding accompanying drawing and specific embodiment resource position field transmission method in the resource allocation signal of the present invention and device are carried out detailed description.
As shown in Figure 3, the resource position field transmission method in the resource allocation signal of the present invention may further comprise the steps: S302, portable terminal confirm the minimum dimension of the resource position field in the resource allocation signal according to system bandwidth and protection frequency bandwidth; Step S304, add resource location information in the resource allocation signal to according to determined minimum dimension the base station; Step S306, the terminal obtains the original position of authorization resources in up channel and down channel according to resource allocation signal.
Wherein, step S302 comprises: step S3022, obtain the quantity of the Physical Resource Block in the sub-frame according to system bandwidth and protection frequency bandwidth; And step S3024, obtain the minimum dimension of resource position field needs in the resource allocation signal according to the quantity of the Physical Resource Block that obtains.
Wherein, confirm the quantity of the Physical Resource Block in the sub-frame according to following formula:
Wherein, N
PRBBe the PRB quantity in the sub-frame; B
SystemAnd B
GuardBe respectively system bandwidth and system protection bandwidth, unit is kHz; B
PRBIt is the frequency bandwidth of a PRB;
Expression rounds downwards.
Confirm the minimum dimension of resource position field needs in the resource allocation signal according to following formula:
R
Field-sizeBe the minimum dimension that resource position field in the scheduling resource assignment signalling needs, unit is bit; N
PRBBe the PRB quantity in the sub-frame; B
SystemAnd B
GuardBe respectively system bandwidth and system protection bandwidth, unit is kHz; B
PRBIt is the frequency bandwidth of a PRB;
Expression rounds downwards;
Expression rounds up.Said resource location is PRB starting position and/or end position.
Fig. 4 is the structure chart of the resource position field transmitting device in the resource allocation signal of the present invention; As shown in Figure 4; Resource position field transmitting device in the resource allocation signal of the present invention comprises: size determination module 402 is used for confirming the minimum dimension of the resource position field of resource allocation signal according to system bandwidth and protection frequency bandwidth; Resource location information is added module 404, is used for adding resource location information to resource allocation signal according to determined minimum dimension; Signaling is sent and receiver module 406, be used for the base station according to scheduling result in down channel transmission resource allocation signaling, and the terminal obtains the original position and/or the end position of authorization resources in up channel and/or down channel according to resource allocation signal.
Wherein, size confirms that the unit comprises 402: Resource Block quantity determination module 4022 is used for obtaining the quantity of the Physical Resource Block of a sub-frame according to system bandwidth and protection frequency bandwidth; And resource location domain sizes determination module 4024, obtain the minimum dimension of resource position field needs in the resource allocation signal according to the quantity of the Physical Resource Block that obtains.
Wherein, Resource Block quantity determination module is confirmed the quantity of the Physical Resource Block in the sub-frame according to following formula:
Wherein, N
PRBBe the PRB quantity in the sub-frame; B
SystemAnd B
GuardBe respectively system bandwidth and system protection bandwidth, unit is kHz; B
PRBIt is the frequency bandwidth of a PRB;
Expression rounds downwards.
Wherein, resource location domain sizes determination module is confirmed the minimum dimension of resource position field needs in the resource allocation signal according to following formula:
Wherein, R
Field-sizeBe the minimum dimension that resource position field in the scheduling resource assignment signalling needs, unit is bit; N
PRBBe the PRB quantity in the sub-frame; B
SystemAnd B
GuardBe respectively system bandwidth and system protection bandwidth, unit is kHz; B
PRBIt is the frequency bandwidth of a PRB;
Expression rounds downwards;
Expression rounds up.Said resource location is PRB starting position and/or end position.
Further describe technical scheme of the present invention below.
Resource allocation signal must be indicated whole subframe; And the indication of position wherein is that unit indicates by PRB, so the resource location domain sizes in the resource allocation signal directly depends on the PRB quantity that can be used for transfer of data in the 3GPP LTE system in the single subframe.Yet because 3GPP LTE system can support multiple systems bandwidth such as 1.25MHz, 2.5MHz, 5MHz, 10MHz and 20MHz, the PRB quantity that therefore comprises in the sub-frame is not fixed.Therefore, the resource location domain sizes in the 3GPPLTE system resource allocation signaling can not be fixed, and need confirm according to 3GPP LTE system bandwidth and protection frequency bandwidth.Be to confirm the resource position field size calculation process in the resource allocation signal below according to said three aspects.
At first, can calculate the PRB quantity in the sub-frame according to system bandwidth, formula is following:
Wherein, N
PRBBe the PRB quantity in the sub-frame; B
SystemAnd B
GuardBe respectively system bandwidth and system protection bandwidth, unit is kHz; B
PRBIt is the frequency bandwidth of a PRB;
Expression rounds downwards.
Because the scheduling resource assignment signalling in each subframe need be indicated the authorization conditions of a sub-frame at least.Therefore, the resource position field in the scheduling resource assignment signalling should be represented 0～NPRB at least.According to the ability of binary representation, can use following formula to confirm the size of resource position field in the scheduling resource assignment signalling:
R
Field-sizeBe the minimum dimension that resource position field in the scheduling resource assignment signalling needs, unit is bit; N
PRBBe the PRB quantity in the sub-frame; B
SystemAnd B
GuardBe respectively system bandwidth and system protection bandwidth, unit is kHz; B
PRBIt is the frequency bandwidth of a PRB;
Expression rounds downwards;
Expression rounds up.Said resource location is PRB starting position and/or end position.
For bandwidth is the 3GPP LTE system of 1.25MHz; Suppose after the 3GPP that the protection bandwidth of regulation 1.25MHzLTE system is 150kHz (about each 5 number of sub-carrier); Then the PRB quantity that in a sub-frame, has of this system is individual for
Further; The size that can calculate resource position field in the scheduling resource assignment signalling should be for
if system dynamics scheduling FTP (FTP; File TransferProtocol) business; And supposition descending scheduling indication signaling adopts form shown in Figure 5; Promptly except that territory, PRB starting position and PRB end position territory; Also comprise MCS (Modulation and Coding Scheme, the Modulation Coding Scheme) territory of 2bit, the distribution duration (Assignment duration) of 2bit and the CRC territory of 16bit.Because there are 6 PRB in the 1.25MHz system in a sub-frame, therefore in this form, need to use 3bits to represent starting position and the end position of Resources allocation in subframe.
Those skilled in the art will readily understand other advantage of the present invention and modification.Therefore, above-mentioned to embodiment be described as the concrete application implementation of the present invention example, the present invention aspect widely is not limited to shown in this paper and specific detail and the exemplary embodiments described.Therefore, can under the condition that does not break away from claim and the spirit or scope of the present invention that equivalent limited thereof, make various modifications.
Claims (8)
1. authorize the resource position field transmission method in the indication signaling for one kind, it is characterized in that, may further comprise the steps:
Step S302, the minimum dimension of the resource position field in the said mandate indication signaling is confirmed in the base station according to system bandwidth, protection frequency bandwidth and MIMO pattern;
Step S304, add resource location information in the said mandate indication signaling to according to determined minimum dimension said base station;
Step S306, indication signaling is authorized in the down channel transmission in said base station, and the terminal is according to authorizing indication signaling to obtain the original position of authorization resources in up channel and/or down channel;
Wherein, confirm the minimum dimension of resource position field needs in the said mandate indication signaling according to following formula:
2. resource position field transmission method according to claim 1 is characterized in that, said step S302 comprises:
Step S3022 obtains the quantity of the Physical Resource Block in the sub-frame according to system bandwidth, the gain of protection frequency bandwidth and MIMO spatial reuse; And
Step S3024 obtains the minimum dimension of resource position field needs in the said mandate indication signaling according to the quantity of the said Physical Resource Block that obtains.
3. resource position field transmission method according to claim 2 is characterized in that, confirms the quantity of the Physical Resource Block in the said sub-frame according to following formula:
4. according to each described resource position field transmission method in the claim 1 to 3, it is characterized in that said resource position field transmission method is used for the LTE system.
5. authorize the resource position field transmitting device in the indication signaling for one kind, it is characterized in that comprising:
The size determination module is used for according to system bandwidth, protects frequency bandwidth and MIMO pattern to confirm the minimum dimension of the resource position field of said mandate indication signaling;
Resource location information is added module, is used for adding resource location information to said mandate indication signaling according to determined minimum dimension;
Signaling is sent and receiver module, and said mandate indication signaling is transmitted according to scheduling result in the base station in down channel, and the terminal is according to authorizing indication signaling to obtain the original position of authorization resources in up channel and/or down channel;
Wherein, the resource location domain sizes determination module in the said size determination module is confirmed the minimum dimension of resource position field needs in the said mandate indication signaling according to following formula:
6. resource position field transmitting device according to claim 5 is characterized in that the size determination module comprises:
Resource Block quantity determination module is used for according to system bandwidth, protects frequency bandwidth and the gain of MIMO spatial reuse to obtain the quantity of the Physical Resource Block of a sub-frame; And
Said resource location domain sizes determination module obtains the minimum dimension of resource position field needs in the said mandate indication signaling according to the quantity of the said Physical Resource Block that obtains.
7. resource position field transmitting device according to claim 6 is characterized in that, said Resource Block quantity determination module is confirmed the quantity of the Physical Resource Block in the said sub-frame according to following formula:
8. according to each described resource position field transmitting device in the claim 5 to 7, it is characterized in that said resource position field transmitting device is used for the LTE system.
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| CN101562845B (en) * | 2008-11-28 | 2011-04-06 | 华为技术有限公司 | Reserved resource release method, apparatus and base station device thereof |
| CN101909305B (en) * | 2009-06-04 | 2013-07-10 | 电信科学技术研究院 | Method and device for transmission and indication of relay system |
| CN102239737B (en) * | 2010-01-08 | 2015-09-30 | 华为技术有限公司 | Resource allocation methods and device |
| WO2011097808A1 (en) * | 2010-02-11 | 2011-08-18 | 上海贝尔股份有限公司 | Method and device for transmitting and processing uplink discontinuous resource allocation signaling |
| CN102695275B (en) | 2011-03-25 | 2017-10-31 | 中兴通讯股份有限公司 | The characterizing method and device of information are distributed in uplink frequency domain resources position under multiport |
| US10462771B2 (en) | 2013-04-04 | 2019-10-29 | Lg Electronics Inc. | Receiving method and user device in small-scale cell |
| US9974093B2 (en) * | 2015-04-29 | 2018-05-15 | Qualcomm Incorporated | Slotted sub-band duplex frame structure design in a wideband time-division duplex system |
| US20190053092A1 (en) * | 2016-01-28 | 2019-02-14 | Lg Electronics Inc. | Data transmission method, base station, data transmission method and core node |
| WO2017132967A1 (en) * | 2016-02-04 | 2017-08-10 | 华为技术有限公司 | Data sending method, data receiving method, user equipment and base station |
| US10945274B2 (en) | 2016-05-13 | 2021-03-09 | Huawei Technologies Co., Ltd. | System and method for bandwidth utilization |
| CN113115443B (en) | 2017-02-27 | 2022-12-23 | 维沃软件技术有限公司 | Resource allocation indication method, base station and terminal |
| CN108811132B (en) | 2017-05-05 | 2020-12-01 | 华为技术有限公司 | Method, equipment and system for indicating resources |
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| CN1867156A (en) * | 2005-12-02 | 2006-11-22 | 上海交通大学 | Downlink distributing process and apparatus in wireless communication system |
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