CN102448155A - Control information transmission method - Google Patents
Control information transmission method Download PDFInfo
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- CN102448155A CN102448155A CN201010500145XA CN201010500145A CN102448155A CN 102448155 A CN102448155 A CN 102448155A CN 201010500145X A CN201010500145X A CN 201010500145XA CN 201010500145 A CN201010500145 A CN 201010500145A CN 102448155 A CN102448155 A CN 102448155A
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- control information
- network terminal
- simultaneous bias
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Abstract
The invention discloses a control information transmission method which comprises the following steps: enabling a terminal to utilize a SS (synchronous shifting) symbol in uplink channel service burst to feed back an uplink synchronous shifting adjustment parameter to a network end, and resolving the parameter in the SS symbol at the network end to know whether UE (user equipment) correctly receives synchronous shifting adjustment control information sent from the network end or not. Another technical scheme in the invention is as follows: enabling the terminal to utilize the SS symbol in the uplink channel service burst to repeatedly send a time slot in which the SS symbol is located and power radiation adjustment control information filled in a TPC (transmission power control) symbol of a physical channel, and performing receiving and merging on the TPC and the SS symbols at the network end. According to the technical scheme in the invention, the SS symbol of an uplink channel is fully utilized for controlling transmission of control information, waste of physical resources is avoided and reliability in transmission of the control information is simultaneously effectively promoted.
Description
Technical field
The present invention relates to the time-division synchronously-(be called for short, TD-SCDMA) control information transmission technology in the GSM specially refers to the method for a kind of TD-SCDMA of raising system transmissions control information to code division multiple access.
Background technology
In the time slot format of TD-SCDMA business burst; Possessing the indication of the transformat combination of carrying (is called for short; TFCI), through-put power control (is called for short; TPC), the ability of simultaneous bias control informations such as (SS), be respectively applied for indication coded combination transmission channel (be called for short, CCTrCH) in coded combination mode, the radiation of power adjustment of closed power control, the synchronisation offset adjustment information of each transmission channel.
(transmission of TPC/SS is in the data division of business burst, to carry out for abbreviation, standard 3GPP TS 25.221 3GPP), and TPC directly sends behind SS, and SS sends behind training sequence according to third generation partner program.TPC/SS in the position in the business burst shown in accompanying drawing 1.
The TPC/SS symbol that business burst is carried in the down channel, the radiation of power adjustment that is respectively applied for the corresponding up channel of indication and synchronisation offset adjustment (said adjustment comprise preset step-length rise, reduce and remain unchanged); The TPC that business burst is carried in the up channel is used to indicate the radiation of power of corresponding down channel to adjust; And the purpose of SS control be uplink synchronous control (be called for short, ULSC), so space, the place of the SS symbol in the up channel as keep with and do not have an its meaning; The purpose of this reservation is to guarantee that uplink and downlink timeslot has same structure.
According to the regulation of 3GPP TS 25.221 standards, the TPC/SS symbol uses spreading code identical with data division and spreading factor to implement spread spectrum, but does not implement the multiplexing of data to be transmitted and chnnel coding process.
Effect with descending power control process explanation TPC command word:
1. the terminal is set and the outer shroud signal quality target value of adjusting downlink business in real time, for example signal interference ratio desired value SIRtarget;
2. measure signal quality in real time, like signal interference ratio SIRmeas from the downlink business place physical channel of network terminal;
3. more real-time measurement result and desired value, when SIRmeas is higher than SIRtarget, TPC order=" down "; When SIRmeas is less than or equal to SIRtarget, TPC order=" up ";
The effect of SS command word is described with the uplink synchronous maintenance process of DPCH:
Network terminal continuous measurement terminal (be called for short, the UE) time, and in each subframe, send necessary simultaneous bias order.UE to the corresponding control time slot of preceding M sub-frame that receives all SS that receive orders make up, for the ascending time slot of each control independently produces a SS order.' value of Uplink synchronisationfrequency ' M is disposed by high level, 1≤M≤8.
Be judged as ' downward modulation ' when the SS of combination orders, the emission of the controlled ascending time slot of UE regularly will postpone k/8 chip period.When order is judged as ' rise ', the emission of the controlled ascending time slot of UE regularly will shift to an earlier date k/8 chip period.When order is judged as ' uncomfortable ', then do not change timing.' value of Uplinksynchronisation step size ' k is disposed 1≤k≤8 by high level.
Regularly adjustment must be carried out in each subframe that satisfies equation:
SFN′modM＝0
Here SFN ' is the System Frame Number that calculates subframe.The System Frame Number of radio frames (be called for short, SFN) can produce from SFN ' through following formula:
SFN=SFN ' div 2 div here is that no remainder removes operation.
There is following problem in the control information transmission method of prior art:
1, do not transmit any Useful Information in the SS symbol that business burst is carried in the up channel, being actually has like this wasted physical resource and has transmitted useless padding data.
2, TPC/SS control information send mode is owing to lack the error correction gain of channel decoding, and the probability of false detection of TPC/SS control information often is higher than data division in the business burst; Simultaneously, transmit leg lacks necessary means and knows control information sends whether the side of being received successfully receives, and causes whole the happening occasionally of mistuning of power controlled quentity controlled variable, synchronisation offset, has a strong impact on user's impression of TD-SCDMA system.
Summary of the invention
In view of this, the present invention proposes a kind of control information transmission method, transmit useful information to make full use of physical resource.
Technical scheme of the present invention is:
A kind of portable terminal sends the method for simultaneous bias control information, comprising:
UE utilizes the SS symbol of up channel business burst to send simultaneous bias adjustment parameter.
Preferably, said simultaneous bias adjustment parameter comprises the simultaneous bias adjustment information that this subframe UE implements.
Preferably, said simultaneous bias adjustment parameter comprises the SS control information of the said up channel of the indication place slot synchronization skew adjustment that UE receives.
A kind of network terminal receives the method for control information, comprising:
Network terminal receives the business burst in the up channel, parses simultaneous bias adjustment parameter in the SS symbol from the business burst of up channel.
Preferably, said simultaneous bias adjustment parameter is the simultaneous bias adjustment information that this subframe UE implements.
Preferably, said simultaneous bias adjustment parameter is that the said up channel of indication that UE receives belongs to the SS control information that the slot synchronization skew is adjusted.
The method that said network terminal receives control information also comprises:
Network terminal judges whether said simultaneous bias adjustment parameter is consistent with the simultaneous bias adjustment parameter of network terminal expection;
If do not conform to, the transmitted power of CCTrCH under the down physical channel at network terminal correction SS place.
The transmitted power of CCTrCH further comprises under the down physical channel at said network terminal adjustment SS place:
Network terminal adds 1 with SS flase drop number of times;
If SS flase drop number of times is greater than preset thresholding th in the predetermined period of time T, network terminal promotes the transmitted power of the affiliated CCTrCH of down physical channel at SS place.
Wherein, The value of said preset thresholding th is that the external circule power control Block Error Rate (is called for short BLER) desired value for
said BLERtarget; Said cycle is a corresponding transmission block quantity of external circule power control cycle, said correction value modi span 1～5;
is the operation that rounds up.
The lifting amplitude of the transmitted power of CCTrCH is 0.5～1dB under the down physical channel at said network terminal lifting SS place.
Preferably, the said predetermined period of time T integral multiple that is external circule power control cycle cycle.
Utilize the simultaneous bias adjustment information of this subframe of SS symbol transmission UE of uplink service burst to give network terminal in the technique scheme of the present invention, the resource that has made full use of business burst is transmitted useful information, has improved physical resource utilization.
In preferred version; Network terminal can judge that simultaneous bias adjustment that UE implements or the simultaneous bias adjustment that receives indicate whether to meet the indication of the simultaneous bias adjustment control information that network sends; And, make that the information of UE in follow-up reception SS symbol is more reliable according to judged result adjustment transmitted power.
The method that a kind of portable terminal sends control information comprises:
UE utilizes the SS symbol in the up channel business burst, fills the radiation of power adjustment control information of in the TPC symbol of said SS symbol place time slot and physical channel, filling at the terminal, sends to network terminal.
A kind of network terminal receives the method for control information, comprising:
Network terminal receives merging to SS symbol in the up channel business burst and TPC symbol, obtains downlink channel power radiation adjustment information.
Preferably, said reception merging method is equal gain combining.
Preferably, said reception merging method is that high specific merges.
Technique scheme of the present invention utilizes the SS symbol of uplink service burst to repeat to send the radiation of power adjustment control information of indicating downlink channel; Making network terminal to adjust control information to radiation of power in the SS symbol that in having made full use of the up channel business burst, has left unused merges reception, effectively promotes the reliability of control information.
Description of drawings
Fig. 1 is the position of TPC/SS in the up-downgoing business burst
Fig. 2 is the overview flow chart of the specific embodiment of the invention 1 and specific embodiment 2
Fig. 3 is the overview flow chart of the specific embodiment of the invention 3
Embodiment
For further specifying technical scheme of the present invention, provide specific embodiment below and combine accompanying drawing to describe in detail.
Specific embodiment 1
The overall procedure of present embodiment is as shown in Figure 2.
1, UE simultaneous bias adjustment information that this subframe UE is implemented is filled in the SS symbol of up channel business burst and sends to network terminal;
2, network terminal parses the simultaneous bias adjustment information that this subframe UE implements from the SS symbol that receives;
3, network terminal judges whether the simultaneous bias adjustment information that UE implements is consistent with the simultaneous bias adjustment information of network terminal indication; As conform to execution in step 5, otherwise execution in step 4;
4, the transmitted power of CCTrCH under the down physical channel at network terminal adjustment SS place;
401, network terminal adds 1 with SS flase drop number of times;
402, whether judge the interior SS flase drop number of times of predetermined period of time T greater than preset thresholding th, if execution in step 403, otherwise execution in step 5
Wherein, Said T value is preferably the integral multiple in external circule power control cycle, and the value of said th is
Wherein, BLERtarget is that the external circule power control Block Error Rate (is called for short BLER) desired value; Said cycle is a corresponding transmission block quantity of external circule power control cycle, correction value modi span 1～5;
is the operation that rounds up;
In the present embodiment, said T value equals external circule power control cycle, modi=1;
403, network terminal promotes the transmitted power of the affiliated CCTrCH of down physical channel at SS place;
Wherein, the lifting amplitude of said transmitted power is 0.5～1dB;
In the present embodiment, network terminal improves 1dB with the transmitted power of CCTrCH under the down physical channel at SS place;
5, network terminal is estimated UE up channel actual synchronization side-play amount, calculates new simultaneous bias adjustment information, and the SS symbol that happens suddenly through downlink business sends to the terminal.
Specific embodiment 2
The overall procedure of present embodiment is as shown in Figure 2.
1, the SS control information of the UE indication up channel place slot synchronization skew adjustment that will receive is filled in the SS symbol of said up channel business burst and sends to network terminal;
2, network terminal parses the SS control information of UE feedback from the SS symbol that receives;
3, network terminal judges whether the SS control information that UE SS control information that receives and the said up channel of the indication place slot synchronization skew that network terminal is sent are adjusted is consistent; As conform to execution in step 5, otherwise execution in step 4;
4, the transmitted power of CCTrCH under the down physical channel at network terminal adjustment SS place;
401, network terminal adds 1 with SS flase drop number of times;
402, whether judge the interior SS flase drop number of times of predetermined period of time T greater than preset thresholding th, if execution in step 403, otherwise execution in step 5
Wherein, Said T value is preferably the integral multiple in external circule power control cycle, and the value of said th is
Wherein, BLERtarget is that the external circule power control Block Error Rate (is called for short BLER) desired value; Said cycle is a corresponding transmission block quantity of external circule power control cycle, correction value modi span 1～5;
is the operation that rounds up;
In the present embodiment, said T value equals external circule power control cycle, modi=5;
403 network terminal promote the transmitted power of the affiliated CCTrCH of down physical channel at SS place;
Wherein, the lifting amplitude of said transmitted power is 0.5～1dB;
In the present embodiment, network terminal improves 0.5dB with the transmitted power of CCTrCH under the down physical channel at SS place;
5, network terminal is estimated UE up channel actual synchronization side-play amount, calculates new simultaneous bias adjustment information and sends to the terminal through the SS symbol that downlink business happens suddenly.
In above-mentioned two preferred embodiments, the simultaneous bias adjustment information of the said up channel of indication place slot synchronization skew adjustment is filled at the terminal in up channel SS symbol; The physical resource that has made full use of up channel feeds back the simultaneous bias adjustment information; Make network terminal can know whether the terminal correctly receives the SS control information in the down channel; Simultaneously; Network terminal is according to the transmitted power of CCTrCH under the down physical channel at the reception accuracy adjustment SS symbol place of said SS symbol, and it is more reliable to make that UE receives subsequent synchronisation skew adjustment control information.
Specific embodiment 3
The overall procedure of present embodiment is as shown in Figure 3.
1, UE utilizes the SS symbol in the up channel business burst, fills the radiation of power adjustment control information of in the TPC symbol of said SS symbol place time slot and physical channel, being filled at the terminal, sends to network terminal;
2, network terminal receives merging to SS symbol in the up channel business burst and the information in the TPC symbol, obtains downlink channel power radiation adjustment information.
Wherein, the method that said reception merges can be that equal gain combining or high specific merge, and adopts equal gain combining in the present embodiment.
In this preferred embodiment, the transmission power control information of terminal at time slot place, said simultaneous bias control word place physical channel repeated to fill in simultaneous bias control word position in up channel, terminal; Network terminal is implemented to merge according to said filling information and transmission power control information and is received, and resolves the respective transmissions power control information; Through the filling of UE in up channel simultaneous bias control, supporting network obtains the TPC control word of carrying in the up channel and merges gain up to the reception of 3dB, effectively promotes the reliability of control information.
One of ordinary skill in the art obviously should be known and understood, and the above embodiment that the inventive method is lifted only is used to explain the inventive method, and is not limited to the inventive method.Though effectively described the present invention through embodiment, also there are many variations in the present invention and do not break away from spirit of the present invention.Under the situation of spirit that does not deviate from the inventive method and essence thereof, those skilled in the art work as can make various corresponding changes or distortion according to the inventive method, but these corresponding changes or distortion all belong to the claim protection range of the inventive method.
Claims (12)
1. the method for portable terminal transmission simultaneous bias control information is characterized in that, comprising:
Mobile terminal UE utilizes the simultaneous bias SS symbol of up channel business burst to send simultaneous bias adjustment parameter.
2. a kind of portable terminal according to claim 1 sends the method for simultaneous bias control information, it is characterized in that, said simultaneous bias adjustment parameter comprises:
The simultaneous bias adjustment information that this subframe UE implements.
3. a kind of portable terminal according to claim 1 sends the method for simultaneous bias control information, it is characterized in that, said simultaneous bias adjustment parameter comprises:
The SS control information of the said up channel of the indication that UE receives place slot synchronization skew adjustment.
4. the method for network terminal reception simultaneous bias control information is characterized in that, comprising:
Network terminal receives the business burst in the up channel, parses simultaneous bias adjustment parameter in the simultaneous bias SS symbol from the business burst of up channel.
5. a kind of network terminal according to claim 4 receives the method for simultaneous bias control information, it is characterized in that, said simultaneous bias adjustment parameter comprises:
The simultaneous bias adjustment information that this subframe UE implements.
6. a kind of network terminal according to claim 4 receives the method for simultaneous bias control information, it is characterized in that, said simultaneous bias adjustment parameter comprises:
The SS control information of the said up channel of the indication that UE receives place slot synchronization skew adjustment.
7. receive the method for simultaneous bias control information according to each described a kind of network terminal in the claim 4～6, it is characterized in that said method also comprises:
Network terminal judges whether said simultaneous bias adjustment parameter is consistent with the simultaneous bias adjustment parameter of network terminal expection;
If do not conform to, the transmitted power of coded combination transmission channel CCTrCH under the down physical channel at network terminal correction SS place.
8. a kind of network terminal according to claim 7 receives the method for simultaneous bias control information, it is characterized in that, the transmitted power of CCTrCH comprises under the down physical channel at said network terminal adjustment SS place:
Network terminal adds 1 with SS flase drop number of times; If SS flase drop number of times is greater than preset thresholding th in the predetermined period of time T, network terminal promotes the transmitted power of the affiliated CCTrCH of down physical channel at SS place.
Wherein, the value of said preset thresholding th is the external circule power control block error probability desired value for
said BLERtarget; Said cycle is a corresponding transmission block quantity of external circule power control cycle, said correction value modi span 1～5;
is the operation that rounds up.
9. a kind of network terminal according to claim 8 receives the method for simultaneous bias control information, it is characterized in that said predetermined period of time T is the integral multiple in external circule power control cycle.
10. the method that portable terminal sends transmission power control information is characterized in that, comprising:
Mobile terminal UE is utilized the simultaneous bias SS symbol in the up channel business burst, fills the radiation of power adjustment control information that UE fills in the TPC symbol of said SS symbol place time slot and physical channel, sends to network terminal.
11. a network terminal receives the method for transmission power control information, it is characterized in that, comprising:
Network terminal receives merging to SS symbol in the up channel business burst and TPC symbol, obtains downlink channel power radiation adjustment information.
12. a kind of network terminal according to claim 11 receives the method for transmission power control information, it is characterized in that, equal gain combining is merged in said reception or high specific merges.
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| CN109691175A (en) * | 2017-06-16 | 2019-04-26 | Oppo广东移动通信有限公司 | The method and apparatus for measuring synchronization signal block |
| CN110063076A (en) * | 2016-12-16 | 2019-07-26 | 高通股份有限公司 | The method and apparatus for being carried out wireless communication by base station and user equipment of position with detection synchronization signal |
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Cited By (5)
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| CN110063076A (en) * | 2016-12-16 | 2019-07-26 | 高通股份有限公司 | The method and apparatus for being carried out wireless communication by base station and user equipment of position with detection synchronization signal |
| CN110063076B (en) * | 2016-12-16 | 2021-08-06 | 高通股份有限公司 | Method and apparatus for wireless communication by a base station and user equipment with detecting location of synchronization signals |
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| CN109691175A (en) * | 2017-06-16 | 2019-04-26 | Oppo广东移动通信有限公司 | The method and apparatus for measuring synchronization signal block |
| CN109691175B (en) * | 2017-06-16 | 2020-06-30 | Oppo广东移动通信有限公司 | Method and apparatus for measuring synchronization signal block |
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Effective date of registration: 20170502 Address after: Nanping Street 400060 Chongqing Nan'an District Nancheng Road No. 199 left attached to the floor 403 Patentee after: Keen (Chongqing) Microelectronics Technology Co., Ltd. Address before: 400065 Chongqing Nan'an District huangjuezhen pass Chongqing University of Posts and Telecommunications shineford building 12 floor 1205 Patentee before: Chongqing City Communication & Technology Co., Ltd. |
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