CN102256310A - Radio resource management method and device supporting voice services over adaptive multi-user channels on one slot (VAMOS) technology - Google Patents

Radio resource management method and device supporting voice services over adaptive multi-user channels on one slot (VAMOS) technology Download PDF

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CN102256310A
CN102256310A CN201010189380XA CN201010189380A CN102256310A CN 102256310 A CN102256310 A CN 102256310A CN 201010189380X A CN201010189380X A CN 201010189380XA CN 201010189380 A CN201010189380 A CN 201010189380A CN 102256310 A CN102256310 A CN 102256310A
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subchannel
sacch
frame
channel
vamos
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王东
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ZTE Corp
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ZTE Corp
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Priority to CN201010189380XA priority Critical patent/CN102256310A/en
Priority to PCT/CN2011/073670 priority patent/WO2011144004A1/en
Publication of CN102256310A publication Critical patent/CN102256310A/en
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    • 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
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/346—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management

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

Abstract

The invention provides a radio resource management method supporting a voice services over adaptive multi-user channels on one slot (VAMOS) technology. The method comprises the following steps of: when a service channel is mapped to a frame of a sub-channel of a VAMOS channel and a slow associated control channel (SACCH) is mapped to the same frame of another sub-channel of the VAMOS channel, reducing the service channel power of a user of the VAMOS channel in the frame. The invention also provides a radio resource management device.

Description

A kind of radio resource management method and device of supporting the VAMOS technology
Technical field
The present invention relates to a kind of at global system for mobile communications (Global System of Mobilecommunications, GSM) in the network, support the speech business of multiplexing single time slot adaptive multiuser channel bearing (Voice services over Adaptive Multi-user channels on One Slot, VAMOS) radio resource management method of technology and device.
Background technology
Along with the increase of people to the demand of mobile voice service, the mobile wireless resource is more and more nervous, and then the technology of many raising spectrum utilization efficiencies occurred, and the VAMOS technology is wherein a kind of.The core concept of VAMOS is exactly by carrying two or more users simultaneously on a GSM time slot, thereby improved the capacity of the utilization ratio and the whole system of frequency spectrum.
Utilize the VAMOS technology, the GSM channel that carries simultaneously more than an activating moving platform MS (Mobile Station) is called the VAMOS channel.Use the VAMOS technology, for system provides more radio channel resource, but can increase simultaneously with the phase mutual interference between the time slot user, and this interference must be the strongest co-channel interference, cause signal receiving quality to descend, therefore need the receiver of good interference cancellation techniques to cooperate, thereby introduced the mobile device of high relatively manufacturing cost.But the VAMOS system also needs to support traditional MS simultaneously, and (RadioResource Management, RRM) algorithm can effectively improve the Radio Resource utilization ratio, thereby improve network capacity if therefore can improve traditional gsm system RRM.
Slow associated control channel (SACCH) is a kind of Dedicated Signaling Channel that is accompanied by Traffic Channel (TCH), as being used to transmit that travelling carriage receives about the test report of the signal strength signal intensity of Serving cell and adjacent cell, this is vital to realizing that travelling carriage participates in handoff functionality.Therefore the performance of SACCH is directly connected to the quality of network service quality, and its transmission quality must guarantee.
According to traditional GSM 26 frame mapping structures, for the VAMOS network, be example with half rate TCH/HS channel, as shown in Figure 1, wherein T is a Traffic Channel, S is the SACCH channel.When four half rates (HR) user u1-u4 was multiplexed on the VAMOS channel, u1, u2 were the legacy users, according to the multiplexing tdma frame of traditional approach, were in a VAMOS subchannel; The shared tdma frame of u3, u4 is in the 2nd VAMOS subchannel.(the SACCH signal that can see u1, u3 or u2, u4 is co-channel interference each other for Discontinuous Transmission, DTX) mechanism, and this interference is inevitable or reduce because the SACCH channel does not have discontinuous emission.U1, u3 are called common VAMOS channel disturbance user, and they are common-channel interference each other; U2, u4 are called common VAMOS channel disturbance user, and they are common-channel interference each other.
After introducing skew (shifted) SACCH, as shown in Figure 2, under this shifted SACCH pattern, the SACCH frame position that is in u3, the u4 of the 2nd VAMOS subchannel has been shifted to an earlier date 6 frames and 7 frames respectively, moved to position as shown in Figure 2, so just can utilize the characteristics that u1, u2 traffic sub channel can DTX, improve owing to introduce the situation that the SACCH channel performance reduces behind the VAMOS.But the SACCH channel also may be subjected to other interference, and its performance also can further be improved.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of radio resource management method and device of the VAMOS of support technology, improves the SACCH channel performance.
In order to solve the problems of the technologies described above, the invention provides a kind of radio resource management method of supporting multiplexing single time slot adaptive multiuser channel bearing speech business technology, comprising:
When a frame of a subchannel of multiplexing single time slot adaptive multiuser channel bearing speech business (VAMOS) channel is mapped with Traffic Channel, and the same frame of another subchannel of this VAMOS channel is mapped with slow associated control channel when being the SACCH channel, reduces the service channel power of the user of this VAMOS channel altogether at this frame.
Wherein, described VAMOS channel comprises first subchannel and second subchannel;
Described method also comprises, obtains some or all SACCH frame position in first subchannel, is designated as F SACCH, obtain some or all SACCH frame position in second subchannel, be designated as SF SACCH
The described reduction user of this VAMOS channel altogether comprises at the service channel power of this frame:
Reduce by the first subchannel user SF SACCHThe service channel power of frame; Reduce by the second subchannel user F SACCHThe service channel power of frame.
Wherein, describedly obtain in first subchannel some or all SACCH frame position and be meant and obtain in the mapping cycle some or all SACCH frame position in first subchannel;
Describedly obtain in second subchannel some or all SACCH frame position and be meant and obtain in the mapping cycle some or all SACCH frame position in the second channel;
The described reduction user of this VAMOS channel altogether comprises at the service channel power of this frame:
Reduce by the first subchannel user SF in the part or all of mapping cycle SACCHThe service channel power of frame; Reduce by the second subchannel user F in the part or all of mapping cycle SACCHThe service channel power of frame.
Wherein, described first subchannel is traditional VAMOS subchannel, and described second subchannel is for opening the VAMOS subchannel of skew SACCH pattern;
Described method also comprises: monitor the skew SACCH pattern of described second subchannel, when described second subchannel changes its skew SACCH pattern, upgrade SF SACCHValue; Reduce the SF after the first subchannel user upgrades SACCHThe service channel power of frame.
Wherein, the degree of described reduction service channel power is formulated according to described VAMOS channel user power grade altogether, perhaps formulates according to system emulation, perhaps according to the RRM policy development.
Wherein, the user of common this VAMOS channel of described reduction comprises at the service channel power of this frame: reduce the service channel power to 0 of the user of common this VAMOS channel at this frame.
A kind of wireless resource management apparatus of supporting the VAMOS technology of the present invention is positioned on the base transceiver station, comprising:
Described wireless resource management apparatus, be used for being mapped with Traffic Channel when a frame of a subchannel of VAMOS channel, and when the same frame of another subchannel of this VAMOS channel was mapped with the SACCH channel, reduction was total to the service channel power of the user of this VAMOS channel at this frame.
Wherein, described wireless resource management apparatus is to be used for: obtain the some or all SACCH frame position of first subchannel, be designated as F SACCH, obtain some or all SACCH frame position in second subchannel, be designated as SF SACCHReduce by the first subchannel user SF SACCHThe service channel power of frame; Reduce by the second subchannel user F SACCHThe service channel power of frame, described first subchannel and second subchannel are two subchannels that described VAMOS channel comprises.
Wherein, described wireless resource management apparatus is to be used for:
Obtain some or all SACCH frame position in interior first subchannel of a mapping cycle; Obtain some or all SACCH frame position in the interior second channel of a mapping cycle; And,
Reduce by the first subchannel user SF in the part or all of mapping cycle SACCHThe service channel power of frame; Reduce by the second subchannel user F in the part or all of mapping cycle SACCHThe service channel power of frame.
Wherein, described wireless resource management apparatus also is used for being out when second subchannel VAMOS subchannel of skew SACCH pattern, when first subchannel is another subchannel of VAMOS channel, monitor the skew SACCH pattern of described second subchannel, when described second subchannel changes its skew SACCH pattern, upgrade SF SACCHValue; Reduce the SF after the first subchannel user upgrades SACCHThe service channel power of frame.
Wherein, described wireless resource management apparatus is to be used for: according to described altogether VAMOS channel user power grade, perhaps according to system emulation, perhaps according to the degree of the described reduction service channel power of RRM policy development.
Wherein, described wireless resource management apparatus is to be used for: reduction is total to the service channel power to 0 of the user of this VAMOS channel at this frame.
By the method for the invention,, and work as F for the user's of VAMOS channel SACCH frame reduces even thoroughly eliminated possible common VAMOS channel disturbance SACCHOr SF SACCHService channel power will fall 0 o'clock, the SACCH channel of this frame can be modulated 100% maximum channel power emission with GMSK, thereby can well guarantee the performance of SACCH, thereby has brought the enhancing of VAMOS network capacity.
Description of drawings
Fig. 1 is the schematic diagram of VAMOS network when using traditional GSM frame structure;
Schematic diagram when Fig. 2 is VAMOS network use shifted SACCH frame structure;
Fig. 3 is an embodiment of the invention radio resource management method flow chart.
Embodiment
In the prior art, though the DTX time that shifted SACCH can utilize another one VAMOS subchannel user not transmitting power improve the SACCH performance, but when another subchannel user is in the traffic channel transmission state, and when wireless channel conditions is relatively poor as away from the base station or be in the signal shadow region, as Fig. 2, when the 6th frame, the T full power of u1 and do not have the situation of DTX, this moment, the SACCH of u3 still can be subjected to very strong interference, thereby influenced the transmission of user's service signaling, the decline of SACCH quality will inevitably cause the reduction of network capacity.Wherein, shifted SACCH pattern refers to the pattern followed when the SACCH frame (referring to be mapped with the frame of SACCH channel) of VAMOS channel user is mapped to non-traditional position.
Core concept of the present invention is: when a frame of a subchannel of VAMOS channel is mapped with Traffic Channel, and the same frame of another subchannel of this VAMOS channel is when being mapped with the SACCH channel, reduces the service channel power of the user of this VAMOS channel altogether at this frame.
Wherein,, can adjust, also can an adjustment member be mapped with the service channel power of the frame of Traffic Channel and SACCH channel simultaneously all service channel powers that is mapped with the frame of Traffic Channel and SACCH channel simultaneously to a VAMOS channel.
The VAMOS channel comprises first subchannel and second subchannel, and first subchannel is traditional VAMOS subchannel, and second subchannel is for opening the VAMOS subchannel of shifted SACCH pattern; Perhaps, first subchannel and second subchannel have all been opened shifted SACCH pattern, and the present invention does not limit this.
Obtain some or all SACCH frame position in first subchannel, be designated as F SACCH, obtain some or all SACCH frame position in second subchannel, be designated as SF SACCHReduce by the first subchannel user SF SACCHThe service channel power of frame; Reduce by the second subchannel user F SACCHThe service channel power of frame.
Wherein, be the cycle to carry out RRM with the mapping cycle, can only obtain some or all SACCH frame position in interior first subchannel of a mapping cycle, be designated as F SACCH, obtain some or all SACCH frame position in interior second subchannel of a mapping cycle, be designated as SF SACCHReduce by the first subchannel user SF in some or all mapping cycles SACCHThe service channel power of frame; Reduce by the second subchannel user F in some or all mapping cycles SACCHThe service channel power of frame.
Wherein, the degree of described reduction service channel power can also can be obtained by system emulation according to VAMOS channel user power grade formulation altogether, also can be by other RRMs (Radio ResourceManagement, RRM) policy development.A kind of possibility is that this traffic channel frame power is transferred to 0, promptly closes this frame Traffic Channel.Exchange the guaranteed SACCH channel of quality for by sacrificing a traffic frame like this, power system capacity is enhanced.
Wherein, at the VAMOS subchannel of second subchannel for the VAMOS user place of unlatching shifted SACCH pattern, first subchannel when the second subchannel shifted SACCH pattern changes, is adjusted SF for not open under the VAMOS subchannel situation of shifted SACCH pattern SACCHValue, repeat above-mentioned steps, promptly reduce the SF after the first subchannel user upgrades SACCHThe service channel power of frame.
Wherein, this method control main body be base transceiver station (Base Transceiver Station, BTS).
As shown in Figure 3, be radio resource management method flow process of the present invention, comprise:
Step 301, BTS monitors second subchannel of a certain VAMOS channel and has opened the shiftedSACCH pattern;
Step 302, BTS obtains the shifted SACCH pattern of second subchannel of this VAMOS channel, establish this moment its shifted SACCH pattern with the mapping position of SACCH frame in a mapping cycle (comprising 26 frames) from F SACCHFrame has moved to frame SF SACCHFrame is designated as F with the mapping position of traditional SACCH frame in a mapping cycle (comprising 26 frames) SACCH, obtain F SACCHAnd SF SACCHValue;
Step 303, BTS reduces by the second subchannel user F of this VAMOS channel SACCHThe frame service channel power;
Step 304, BTS reduces by the first subchannel user SF of this VAMOS channel SACCHThe frame service channel power;
Step 305, BTS monitors whether the shifted SACCH pattern of described second subchannel changes, and is execution in step 306 then, otherwise continues to monitor;
Step 306, BTS is according to new shifted SACCH schema update SF SACCHValue forwards step 304 to.
The method of the invention, by reduce with the SACCH channel Mapping in the service channel power of same frame, reduced interference to the SACCH channel, improved systematic function.

Claims (12)

1. a radio resource management method of supporting multiplexing single time slot adaptive multiuser channel bearing speech business technology is characterized in that,
When a frame of a subchannel of multiplexing single time slot adaptive multiuser channel bearing speech business (VAMOS) channel is mapped with Traffic Channel, and the same frame of another subchannel of this VAMOS channel is mapped with slow associated control channel when being the SACCH channel, reduces the service channel power of the user of this VAMOS channel altogether at this frame.
2. the method for claim 1 is characterized in that,
Described VAMOS channel comprises first subchannel and second subchannel;
Described method also comprises, obtains some or all SACCH frame position in first subchannel, is designated as F SACCH, obtain some or all SACCH frame position in second subchannel, be designated as SF SACCH
The described reduction user of this VAMOS channel altogether comprises at the service channel power of this frame:
Reduce by the first subchannel user SF SACCHThe service channel power of frame; Reduce by the second subchannel user F SACCHThe service channel power of frame.
3. the method for stating as claim 2 is characterized in that, describedly obtains in first subchannel some or all SACCH frame position and is meant and obtains in the mapping cycle some or all SACCH frame position in first subchannel;
Describedly obtain in second subchannel some or all SACCH frame position and be meant and obtain in the mapping cycle some or all SACCH frame position in the second channel;
The described reduction user of this VAMOS channel altogether comprises at the service channel power of this frame:
Reduce by the first subchannel user SF in the part or all of mapping cycle SACCHThe service channel power of frame; Reduce by the second subchannel user F in the part or all of mapping cycle SACCHThe service channel power of frame.
4. method as claimed in claim 2 is characterized in that,
Described first subchannel is traditional VAMOS subchannel, and described second subchannel is for opening the VAMOS subchannel of skew SACCH pattern;
Described method also comprises: monitor the skew SACCH pattern of described second subchannel, when described second subchannel changes its skew SACCH pattern, upgrade SF SACCHValue; Reduce the SF after the first subchannel user upgrades SACCHThe service channel power of frame.
5. as claim 1,2,3 or 4 described methods, it is characterized in that the degree of described reduction service channel power is formulated according to described VAMOS channel user power grade altogether, perhaps formulates according to system emulation, perhaps according to the RRM policy development.
6. as claim 1,2,3 or 4 described methods, it is characterized in that the described reduction user of this VAMOS channel altogether comprises at the service channel power of this frame: reduction is total to the service channel power to 0 of the user of this VAMOS channel at this frame.
7. a wireless resource management apparatus of supporting the VAMOS technology is positioned on the base transceiver station, it is characterized in that,
Described wireless resource management apparatus, be used for being mapped with Traffic Channel when a frame of a subchannel of VAMOS channel, and when the same frame of another subchannel of this VAMOS channel was mapped with the SACCH channel, reduction was total to the service channel power of the user of this VAMOS channel at this frame.
8. wireless resource management apparatus as claimed in claim 7 is characterized in that,
Described wireless resource management apparatus is to be used for: obtain the some or all SACCH frame position of first subchannel, be designated as F SACCH, obtain some or all SACCH frame position in second subchannel, be designated as SF SACCHReduce by the first subchannel user SF SACCHThe service channel power of frame; Reduce by the second subchannel user F SACCHThe service channel power of frame, described first subchannel and second subchannel are two subchannels that described VAMOS channel comprises.
9. the wireless resource management apparatus of stating as claim 8 is characterized in that, described wireless resource management apparatus is to be used for:
Obtain some or all SACCH frame position in interior first subchannel of a mapping cycle; Obtain some or all SACCH frame position in the interior second channel of a mapping cycle; And,
Reduce by the first subchannel user SF in the part or all of mapping cycle SACCHThe service channel power of frame; Reduce by the second subchannel user F in the part or all of mapping cycle SACCHThe service channel power of frame.
10. wireless resource management apparatus as claimed in claim 8, it is characterized in that, described wireless resource management apparatus also is used for being out when second subchannel VAMOS subchannel of skew SACCH pattern, when first subchannel is another subchannel of VAMOS channel, monitor the skew SACCH pattern of described second subchannel, when described second subchannel changes its skew SACCH pattern, upgrade SF SACCHValue; Reduce the SF after the first subchannel user upgrades SACCHThe service channel power of frame.
11. as claim 7,8,9 or 10 described wireless resource management apparatus, it is characterized in that, described wireless resource management apparatus is to be used for: according to described VAMOS channel user power grade altogether, perhaps according to system emulation, perhaps according to the degree of the described reduction service channel power of RRM policy development.
12. as claim 7,8,9 or 10 described wireless resource management apparatus, it is characterized in that described wireless resource management apparatus is to be used for: reduction is total to the service channel power to 0 of the user of this VAMOS channel at this frame.
CN201010189380XA 2010-05-19 2010-05-19 Radio resource management method and device supporting voice services over adaptive multi-user channels on one slot (VAMOS) technology Pending CN102256310A (en)

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CN201010189380XA CN102256310A (en) 2010-05-19 2010-05-19 Radio resource management method and device supporting voice services over adaptive multi-user channels on one slot (VAMOS) technology
PCT/CN2011/073670 WO2011144004A1 (en) 2010-05-19 2011-05-04 Radio resource management method and device supporting voice services over adaptive multi-user channels on one slot technique

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WO2014100927A1 (en) * 2012-12-24 2014-07-03 华为技术有限公司 Channel allocation method, device, base station, and system
CN105210440A (en) * 2013-05-18 2015-12-30 高通股份有限公司 System and methods for increasing network efficiency using VAMOS channels on a multi-SIM device

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Publication number Priority date Publication date Assignee Title
WO2014100927A1 (en) * 2012-12-24 2014-07-03 华为技术有限公司 Channel allocation method, device, base station, and system
CN105210440A (en) * 2013-05-18 2015-12-30 高通股份有限公司 System and methods for increasing network efficiency using VAMOS channels on a multi-SIM device
CN105210440B (en) * 2013-05-18 2017-08-01 高通股份有限公司 For increasing the system and method for network efficiency using VAMOS channels on many SIM devices

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