CN107889121A - A kind of method and apparatus for broadcasting covering - Google Patents

A kind of method and apparatus for broadcasting covering Download PDF

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Publication number
CN107889121A
CN107889121A CN201610875427.5A CN201610875427A CN107889121A CN 107889121 A CN107889121 A CN 107889121A CN 201610875427 A CN201610875427 A CN 201610875427A CN 107889121 A CN107889121 A CN 107889121A
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CN
China
Prior art keywords
broadcast
physical channel
data
frequency domain
domain resource
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Application number
CN201610875427.5A
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Chinese (zh)
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CN107889121B (en
Inventor
牛丽
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ZTE Corp
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ZTE Corp
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Priority to CN201610875427.5A priority Critical patent/CN107889121B/en
Priority to PCT/CN2017/105176 priority patent/WO2018059597A1/en
Publication of CN107889121A publication Critical patent/CN107889121A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/26—Cell enhancers or enhancement, e.g. for tunnels, building shadow
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H04W52/322—Power control of broadcast channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • 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
    • H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application proposes a kind of method and apparatus for broadcasting covering, is related to communication technical field, the scheme includes：In the cell range of base station covering, data physical channel is launched using the wave beam forming of narrow beam at the data moment；In broadcast moments using omnidirectional wave beam forming transmitting broadcast physical channel, and power back-off is carried out to the broadcast physical channel.The present invention carries out power back-off in order to balance the coverage of broadcast physical channel and data physical channel, to broadcast physical channel, so as to increase the transmission power of broadcast physical channel, and then increases the coverage of broadcast channel.

Description

A kind of method and apparatus for broadcasting covering
Technical field
The present invention relates to communication technical field, and in particular to a kind of method and apparatus for broadcasting covering.
Background technology
Mobile communications network faces the growth of terminal data portfolio expansion type, and 5G (move by 5th-Generation, the 5th generation The dynamic communication technology) network can reach the indexs such as superelevation speed, big handling capacity, ultrahigh reliability, ultralow time delay, provides the user Optimal experience.But below 6GHz frequency range service efficiency is already close to theoretical limit, therefore, academia and industry at present All think that the mmWave (millimeter wave) of higher frequency section will be the important channel of realizing following 5G communications in boundary.
Although high-frequency band has larger available bandwidth, but, the shortcomings that loss is big, area coverage is small but be present in high frequency. In order to increase the area coverage of high-frequency band, beamforming (wave beam forming) technology can be used.
However, in multi-antenna systems, particularly with broadcast channel, it is necessary to be launched in the range of all standing, so as to Broadcast message can be received in all users in cell.Moreover, broadcast message needs to be launched with the fixed cycle, consider It is mobile to user, in user's moving process, the broadcast message that receives should be that have can be successional, can carry out Merging treatment, to improve the reliability of broadcast message, so broadcast channel needs to carry out omnidirectional wave beam forming.
And for data channel, the user that only can carry out data transmission to needs is transmitted, many when existing in cell When multi-user needs to carry out data transmission, priority ranking, according to priority, selective pair can be carried out to user and business User provides data transfer.The Qos (Quality of Service, service quality) of customer service had so both been met, had also been protected Covering is demonstrate,proved, so transmitting terminal can carry out the wave beam forming of narrow beam.
But because broadcast channel uses the wave beam forming of omnidirectional, so the figuration gain of broadcast channel is smaller；Instead It, because data channel uses the wave beam forming of narrow beam, so the figuration gain of data channel is bigger.So it will result in The coverage of broadcast channel and data channel is inconsistent, it is, the coverage of data channel is far longer than broadcast channel Coverage.Very big influence can be thus caused to the networking of multiaerial system.So need to improve covering for broadcast channel Lid scope so that the coverage of broadcast channel and data channel is consistent.
The content of the invention
The present invention provides a kind of method and apparatus for broadcasting covering, while ensureing that user smoothly accesses so that broadcast The coverage of channel and data channel is consistent.
In order to realize foregoing invention purpose, the technical scheme that the present invention takes is as follows：
A kind of method for broadcasting covering, including：
In the cell range of base station covering, the wave beam forming transmitting Data Physical letter at the data moment using narrow beam Road；In broadcast moments using omnidirectional wave beam forming transmitting broadcast physical channel, and work(is carried out to the broadcast physical channel Rate compensates.
Preferably, the transmitting data physical channel includes：
The data physical channel is launched using full bandwidth.
Preferably, the transmitting broadcast physical channel includes：
The broadcast physical channel is launched using fractional bandwidth.
Preferably, it is described that broadcast physical channel progress power back-off is included：
In the broadcast moments, any signal is not sent in preset frequency domain resource, by the preset frequency domain resource Power is loaded into broadcast physical channel so that the bandwidth of broadcast physical channel uses fractional bandwidth.
Preferably, the preset frequency domain resource is determined according at least one following information：
Frequency, the fading profiles of broadcast physical channel, the cell range of base station covering corresponding to frequency domain resource.
The present invention also provides a kind of device for broadcasting covering, including：
Data transmission blocks, it is arranged in the cell range of base station covering, the wave beam of narrow beam is used at the data moment Figuration launches data physical channel；
Broadcast module, it is arranged in broadcast moments using omnidirectional wave beam forming transmitting broadcast physical channel；
Compensating module, it is arranged to carry out power back-off to the broadcast physical channel.
Preferably, the data transmission blocks are arranged to：
The data physical channel is launched using full bandwidth.
Preferably, the broadcast module is arranged to：
The broadcast physical channel is launched using fractional bandwidth.
Preferably, the compensating module is arranged to：
In the broadcast moments, any signal is not sent in preset frequency domain resource, by the preset frequency domain resource Power is loaded into broadcast physical channel so that the bandwidth of broadcast physical channel uses fractional bandwidth.
Preferably, the broadcast module determines the preset frequency domain resource according at least one following information：
Frequency, the fading profiles of broadcast physical channel, the cell range of base station covering corresponding to frequency domain resource.The present invention and Prior art is compared, and is had the advantages that：
Scheme proposed by the present invention, data physical channel, using the beamforming technique of narrow beam, number is transmitted for user According to broadcast singal uses theaomni-directional transmission technology, in order to balance the coverage of broadcast physical channel and data physical channel, to wide Broadcast physical channel and carry out power back-off, i.e., in broadcast moments, do not send any signal in the frequency domain resource of part, this part is empty Out the power in frequency domain resource is loaded into broadcast physical channel, so as to increase the transmission power of broadcast physical channel, and then Increase the coverage of broadcast channel.
Brief description of the drawings
Fig. 1 is the flow chart of the method for the broadcast covering of the embodiment of the present invention；
Fig. 2 is the structural representation of the device of the broadcast covering of the embodiment of the present invention；
Fig. 3 is the broadcast physical channel of the embodiment of the present invention and the bandwidth schematic diagram of data physical channel；
Fig. 4 is the broadcast physical channel of the embodiment of the present invention and the covering schematic diagram of data physical channel.
Embodiment
To make the goal of the invention of the present invention, technical scheme and beneficial effect of greater clarity, below in conjunction with the accompanying drawings to this The embodiment of invention is illustrated, it is necessary to illustrate, in the case where not conflicting, in the embodiment and embodiment in the application Feature can mutually be combined.
As shown in figure 1, the embodiment of the present invention provides a kind of method for broadcasting covering, including：
In the cell range of base station covering, the wave beam forming transmitting Data Physical letter at the data moment using narrow beam Road；In broadcast moments using omnidirectional wave beam forming transmitting broadcast physical channel, and work(is carried out to the broadcast physical channel Rate compensates.
Cell provides the user two class services：Broadcast data services and business datum service, wherein, broadcast data passes through wide Broadcast physical channel to be launched, business datum is launched by data physical channel.
The embodiment of the present invention carries out time division transmission, broadcast moments transmitting broadcast to broadcast physical channel and data physical channel Physical channel, data moment transmitting data physical channel.For data physical channel, using the beamforming technique of narrow beam, With a width of full bandwidth, data are transmitted for user.The generation direction of narrow beam, it can be changed according to user situation, it must be small that timesharing, which is carved, User in area transmits data.For broadcast physical channel, using theaomni-directional transmission technology.In order to balance broadcast channel sum it is believed that The coverage in road, power back-off is carried out with to broadcast physical channel.
The transmitting data physical channel includes：
The data physical channel is launched using full bandwidth.
The transmitting broadcast physical channel includes：
The broadcast physical channel is launched using fractional bandwidth.
It is described that broadcast physical channel progress power back-off is included：
In the broadcast moments, any signal is not sent in preset frequency domain resource, by the preset frequency domain resource Power is loaded into broadcast physical channel so that the bandwidth of broadcast physical channel uses fractional bandwidth.
The embodiment of the present invention does not send any signal in broadcast moments in preset frequency domain resource, this part is available Power in frequency domain resource is loaded on broadcast channel so that the bandwidth of broadcast channel is changed into fractional bandwidth, so as to improve broadcast The transmission power of channel, and then increase the coverage of broadcast channel, and cause the covering model of broadcast channel and data channel Enclose and be consistent.
Wherein, the preset frequency domain resource is determined according at least one following information：
Frequency, the fading profiles of broadcast physical channel, the cell range of base station covering corresponding to frequency domain resource.
As shown in Fig. 2 the embodiment of the present invention also provides a kind of device for broadcasting covering, including：
Data transmission blocks, it is arranged in the cell range of base station covering, the wave beam of narrow beam is used at the data moment Figuration launches data physical channel；
Broadcast module, it is arranged in broadcast moments using omnidirectional wave beam forming transmitting broadcast physical channel；
Compensating module, it is arranged to carry out power back-off to the broadcast physical channel.
Further, the data transmission blocks are arranged to：
The data physical channel is launched using full bandwidth.
The broadcast module is arranged to：
The broadcast physical channel is launched using fractional bandwidth.
The compensating module is arranged to：
In the broadcast moments, any signal is not sent in preset frequency domain resource, by the preset frequency domain resource Power is loaded into broadcast physical channel so that the bandwidth of broadcast physical channel uses fractional bandwidth.
Wherein, the broadcast module determines the preset frequency domain resource according at least one following information：
Frequency, the fading profiles of broadcast physical channel, the cell range of base station covering corresponding to frequency domain resource.
Embodiment 1
The working frequency points of one cell are high frequency (30GHz~60GHz), have multiaerial system.
Because the path loss of high frequency is very big, in order to increase area coverage, using velocity of wave figuration technology.
For user data, the transmitting terminal of cell first weights to user data to be retransmited, and forms the launching beam of narrow beam, User oriented., each data moment, can be to user and business when numerous users in cell be present and need to carry out data transmission Priority ranking is carried out, according to priority, the generation direction of narrow beam is selected, data transfer is provided to certain customers.
And broadcast singal needs the user towards full cell, using theaomni-directional transmission technology, but due to the road of theaomni-directional transmission Damage is very big, and area coverage is small.In order to balance the coverage of broadcast channel and data channel, the present embodiment is carried out to broadcast channel Power back-off, i.e., in the subframe where broadcast channel, any signal is not sent in the frequency domain resource of part, this part is available Power in frequency domain resource is loaded on broadcast channel, so as to increase the transmission power of broadcast channel, and then increases broadcast channel Coverage.
Embodiment 2
Illustrate the process of the method for broadcast covering provided in an embodiment of the present invention with reference to shown in Fig. 3 and Fig. 4:
Cell needs covering radius to reach X m, and transmission power is Y dBm, then, data channel uses the wave beam of narrow beam Figuration technology, with a width of N；And broadcast channel uses the beamforming technique of theaomni-directional transmission, in order to reach same covering radius, In the case where general power is no more than Y dBm, reduce a width of M of band of transmitting, and N》M.As shown in Figure 3.
Broadcast physical channel and data physical channel make a distinction in the way of the time-division.At the data moment, by small User and the business carried out data transmission is needed in area, priority ranking is carried out, selects the higher user of priority and business, Towards these users and multiple wave beams of business, user and business in a beam coverage share whole bandwidth for generation M.For example, in moment i and moment j, the wave beam of generation towards direction it is different.
In broadcast moments, the wave beam of theaomni-directional transmission is generated, bandwidth M, covers whole cell.Because broadcast message carries out the cycle Property transmitting, all launch broadcast message in moment k and moment k+l (l is the broadcast message cycle), can so ensure broadcast message Periodically, if moreover, UE is mobile, it can be ensured that UE can receive broadcast message always.
Although disclosed embodiment is as above, its content is only to facilitate understand the technical side of the present invention Case and the embodiment used, are not intended to limit the present invention.Any those skilled in the art to which this invention pertains, not On the premise of departing from disclosed core technology scheme, any modification can be made in the form and details of implementation and is become Change, but the protection domain that the present invention is limited, the scope that must be still limited by appended claims are defined.

Claims (10)

  1. A kind of 1. method for broadcasting covering, it is characterised in that including：
    In the cell range of base station covering, data physical channel is launched using the wave beam forming of narrow beam at the data moment； Broadcast moments carry out power benefit using omnidirectional wave beam forming transmitting broadcast physical channel to the broadcast physical channel Repay.
  2. 2. the method as described in claim 1, it is characterised in that：The transmitting data physical channel includes：
    The data physical channel is launched using full bandwidth.
  3. 3. the method as described in claim 1, it is characterised in that：The transmitting broadcast physical channel includes：
    The broadcast physical channel is launched using fractional bandwidth.
  4. 4. the method as described in claim 1, it is characterised in that：It is described that power back-off bag is carried out to the broadcast physical channel Include：
    In the broadcast moments, any signal is not sent in preset frequency domain resource, by the power in the preset frequency domain resource It is loaded into broadcast physical channel so that the bandwidth of broadcast physical channel uses fractional bandwidth.
  5. 5. method as claimed in claim 4, it is characterised in that：The default frequency domain money is determined according at least one following information Source：
    Frequency, the fading profiles of broadcast physical channel, the cell range of base station covering corresponding to frequency domain resource.
  6. A kind of 6. device for broadcasting covering, it is characterised in that including：
    Data transmission blocks, it is arranged in the cell range of base station covering, the wave beam forming of narrow beam is used at the data moment Launch data physical channel；
    Broadcast module, it is arranged in broadcast moments using omnidirectional wave beam forming transmitting broadcast physical channel；
    Compensating module, it is arranged to carry out power back-off to the broadcast physical channel.
  7. 7. device as claimed in claim 6, it is characterised in that：The data transmission blocks are arranged to：
    The data physical channel is launched using full bandwidth.
  8. 8. device as claimed in claim 6, it is characterised in that：The broadcast module is arranged to：
    The broadcast physical channel is launched using fractional bandwidth.
  9. 9. device as claimed in claim 6, it is characterised in that：The compensating module is arranged to：
    In the broadcast moments, any signal is not sent in preset frequency domain resource, by the power in the preset frequency domain resource It is loaded into broadcast physical channel so that the bandwidth of broadcast physical channel uses fractional bandwidth.
  10. 10. device as claimed in claim 9, it is characterised in that：The broadcast module determines according at least one following information The preset frequency domain resource：
    Frequency, the fading profiles of broadcast physical channel, the cell range of base station covering corresponding to frequency domain resource.
CN201610875427.5A 2016-09-30 2016-09-30 Method and device for covering broadcast Active CN107889121B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201610875427.5A CN107889121B (en) 2016-09-30 2016-09-30 Method and device for covering broadcast
PCT/CN2017/105176 WO2018059597A1 (en) 2016-09-30 2017-09-30 Broadcast coverage method and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610875427.5A CN107889121B (en) 2016-09-30 2016-09-30 Method and device for covering broadcast

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CN107889121A true CN107889121A (en) 2018-04-06
CN107889121B CN107889121B (en) 2022-10-18

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WO (1) WO2018059597A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111491304A (en) * 2019-01-28 2020-08-04 华为技术有限公司 Method for processing broadcast beam and communication device
CN114698076A (en) * 2020-12-31 2022-07-01 上海华为技术有限公司 Power regulation method and equipment thereof

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CN101635619A (en) * 2009-08-28 2010-01-27 华为技术有限公司 Method, base station and system for transmitting subcarriers
CN101651481A (en) * 2008-08-15 2010-02-17 信息产业部电信传输研究所 Method for improving quality of broadcasting service in mobile communication network
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CN103023543A (en) * 2011-09-21 2013-04-03 中国移动通信集团设计院有限公司 Beam forming method, apparatus and base station equipment
US20160255605A1 (en) * 2013-10-31 2016-09-01 Lg Electronics Inc. Broadcast channel transmitting method through massive mimo in wireless communication system and apparatus therefor

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CN103138816A (en) * 2011-12-05 2013-06-05 上海贝尔股份有限公司 Method and device for sub array complementary beam forming

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CN1866620A (en) * 2005-05-18 2006-11-22 普天信息技术研究院 Method for adaptively regulating intelligent antenna wave beam width
CN101335553B (en) * 2007-06-26 2012-05-23 中兴通讯股份有限公司 Method and apparatus implementing broadcast channel covering by antenna array
CN101651481A (en) * 2008-08-15 2010-02-17 信息产业部电信传输研究所 Method for improving quality of broadcasting service in mobile communication network
CN101635619A (en) * 2009-08-28 2010-01-27 华为技术有限公司 Method, base station and system for transmitting subcarriers
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CN111491304A (en) * 2019-01-28 2020-08-04 华为技术有限公司 Method for processing broadcast beam and communication device
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CN114698076A (en) * 2020-12-31 2022-07-01 上海华为技术有限公司 Power regulation method and equipment thereof
WO2022143580A1 (en) * 2020-12-31 2022-07-07 华为技术有限公司 Power adjustment method and device therefor
CN114698076B (en) * 2020-12-31 2023-07-11 上海华为技术有限公司 Power adjusting method and equipment thereof

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Publication number Publication date
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WO2018059597A1 (en) 2018-04-05

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