CN112165370A - Method for detecting Discontinuous Transmission (DTX), equipment and storage medium - Google Patents
Method for detecting Discontinuous Transmission (DTX), equipment and storage medium Download PDFInfo
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Abstract
The present specification provides a method, an apparatus and a storage medium for Discontinuous Transmission (DTX) detection, the method comprising: determining user dispatchable code channels, obtaining the power value of each user dispatchable code channel, determining a target code channel with the maximum power value according to the power value of each user dispatchable code channel, obtaining the average noise power value of non-user dispatchable code channels adjacent to the target code channel, and carrying out DTX detection on the power value of the user dispatchable code channel according to the average noise power value.
Description
Technical Field
The present disclosure relates to the field of wireless communications, and in particular, to a method, an apparatus, and a storage medium for detecting discontinuous transmission DTX.
Background
A PUCCH (Physical Uplink Control Channel) is used to carry UCI (Uplink Control Information) sent by the terminal, and specifically includes CSI (Channel State Information), ACK (Acknowledgement)/NACK (Negative Acknowledgement) of HARQ (Hybrid Automatic Repeat Request) Acknowledgement Information, and SR (scheduling Request) Information.
The DTX detection of the PUCCH is to prevent the UE from sending UCI information and causing a false alarm due to false detection by the base station, thereby causing problems such as packet loss of the user, and therefore the protocol 38.101 requires that the probability of misinterpretating DTX as ACK by the PUCCH does not exceed 0.01. Although the DTX detection threshold is increased, the "false alarm" can be better suppressed, and the "false alarm" probability is reduced, but the "false alarm" probability is higher as the threshold is higher, that is, the user transmits UCI information, but the base station misses demodulation because the DTX threshold is not exceeded, which may cause the problem that the base station repeatedly schedules the user for retransmission. Therefore, how to reduce missed detection as much as possible under the condition of ensuring false alarm is the key of the PUCCH detection algorithm.
The 5G system defines 5 PUCCH formats to support terminal requirements in different scenarios. In order to improve resource utilization, for format 0, format 1 and format 4 of the PUCCH, multi-user multiplexing can be supported by code division technology, wherein PUCCH format 1 can support simultaneous transmission of 84 users at maximum. However, the channel effect in wireless multi-path transmission and the frequency offset effect in signal processing can destroy the orthogonality between code channels in the received signal, thereby causing user power leakage to adjacent code channels and interfering other users. Due to the fact that the difference of the distance between the user and the base station is obvious, the difference of the signal strength of different users reaching the base station is obvious, the larger the receiving power deviation is, the larger the influence on PUCCH demodulation is, and the problems of virtual detection of the user and the like under a multi-user multiplexing scene occur.
In the existing PUCCH format 1 detection technology, a method of weighting and combining all remaining code channels and dimensions is adopted. In all the remaining code channels, orthogonality among the code channels is mainly utilized, theoretically, noise signals are borne on idle code channels, and all the idle code channels which are not scheduled can be used for estimating noise power so as to perform DTX judgment.
Disclosure of Invention
The present specification provides a method, an apparatus, and a storage medium for detecting discontinuous transmission DTX, which can effectively avoid a user from false detection by selecting an average power of a surrounding code channel (adjacent non-user schedulable code channel) having a target code channel with a maximum power value as a noise power.
An embodiment of the present specification provides a method for detecting discontinuous transmission DTX, where the method includes:
determining user schedulable code channels, and acquiring the power value of each user schedulable code channel;
determining a target code channel with the maximum power value according to the power value of the code channel which can be scheduled by each user;
acquiring an average noise power value of a non-user schedulable code channel adjacent to the target code channel;
and carrying out DTX detection on the power value of the user scheduling code channel according to the average noise power value.
Optionally, the determining the code channels available to the user specifically includes:
and determining the available code channels of the users according to the index number of the orthogonal sequences which can be dispatched by the users, the index of the orthogonal sequences and the cyclic shift corresponding to the index number of the orthogonal sequences which can be dispatched by the users.
Optionally, if the number N of orthogonal sequence indexes available to the user is less than 4 or equal to 6, the user-schedulable code channel includes:
Mod(occ(i),3)＝0，m(i)＝{0,3,6,9}；
Mod(occ(i),3)＝1，m(i)＝{1,4,7,10}；
Mod(occ(i),3)＝2，m(i)＝{2,5,8,11}；
wherein, occ (i), i ═ {0,1 …, N-1}, represents an orthogonal sequence index, and m (i) represents a cyclic shift, and a user schedulable code channel is determined according to occ (i) and m (i).
Optionally, if the number N of orthogonal sequence indexes available to the user is equal to 4 or equal to 7, the user-schedulable code channel includes:
if the number N of orthogonal sequence indices available to the user is equal to 4 or equal to 7, the user schedulable code channel includes:
mod (occ (i), N) ═ N-1, and m (i) is null;
wherein, occ (i), i ═ {0,1 …, N-1}, represents the orthogonal sequence index, and when the number of orthogonal sequence indexes is equal to 4 or equal to 7, the cyclic shifts are all null values; and the number of the first and second groups,
Mod(occ(i),3)＝0，m(i)＝{0,3,6,9}；
Mod(occ(i),3)＝1，m(i)＝{1,4,7,10}；
Mod(occ(i),3)＝2，m(i)＝{2,5,8,11}；
where, occ (i), i ═ {0,1 … N-2}, represents an orthogonal sequence index, and m (i) represents a cyclic shift.
Optionally, if the number N of orthogonal sequence indexes available to the user is equal to 5, the user-schedulable code channel includes:
Mod(occ(i),N)＝0，m(i)＝{0,3,6,9}；
Mod(occ(i),N)＝1，m(i)＝{1,4,7,10}；
Mod(occ(i),N)＝2，m(i)＝{2,5,8,11}；
Mod(occ(i),N)＝N-1，m(i)＝{2,5,8,11}；
wherein, occ (i), i ═ {0,1 …, N-1} represents the orthogonal sequence index, m (i) represents the cyclic shift, and the user schedulable code channel is determined according to occ (i) and m (i).
Optionally, the obtaining the power value of the schedulable code channel of each user specifically includes:
acquiring channel estimation information of a user schedulable code channel by a least square method;
and acquiring the power value of the user scheduling code channel according to the channel estimation information.
Optionally, the determining, according to the power value of the schedulable code channel of each user, the target code channel having the largest power value specifically includes:
and sorting the power values of the schedulable code channels of the users according to the size, determining the schedulable code channel of the user with the maximum power value according to the sorting result, and taking the schedulable code channel of the user with the maximum power value as a target code channel.
Optionally, a target orthogonal sequence index and a target cyclic shift corresponding to the target code channel are obtained;
and determining the non-user schedulable code channel adjacent to the target code channel according to the target orthogonal sequence index, the target cyclic shift and the number of the user schedulable orthogonal sequence indexes.
Optionally, the obtaining of the average noise power value of the non-user schedulable code channel adjacent to the target code channel specifically includes:
acquiring channel estimation information of non-user schedulable code channels adjacent to the target code channel by a least square method;
determining the power value of each non-user schedulable code channel according to the channel estimation information of each non-user schedulable code channel;
and acquiring the average noise power value of the non-user schedulable code channel adjacent to the target code channel according to the power value of each non-user schedulable code channel.
Optionally, comparing the ratio of the power value of the user-schedulable code channel to the average noise power value with a preset DTX threshold value;
and when the value is smaller than the preset DTX threshold value, determining that the corresponding user schedulable code channel is a DTX code channel.
As can be seen from the foregoing embodiments, in the technical solution provided in this specification, the average power of the surrounding code channels of the user schedulable code channel with the maximum power value is used as the noise power, and the DTX detection is performed according to the noise power and the user schedulable code channel power, so that the DTX false detection of the user can be effectively avoided.
An embodiment of the present specification further provides a mobile communication device, including: a processor and a machine-readable storage medium;
the machine-readable storage medium stores machine-executable instructions executable by the processor, the processor being caused by the machine-executable instructions to: implementing any of the embodiments described above.
Embodiments of the present specification also provide a readable storage medium storing machine executable instructions that, when invoked and executed by a processor, cause the processor to: implementing any of the embodiments described above.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present specification and together with the description, serve to explain the principles of the specification.
Fig. 1 is a flowchart illustrating a method for detecting discontinuous transmission DTX according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a code channel according to an embodiment of the disclosure.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present specification. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the specification, as detailed in the appended claims.
The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the description. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information, without departing from the scope of the present specification. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
At present, when DTX is determined, the ratio of the estimated noise power on the calculated user signal power ratio is compared with a set DTX threshold value to determine whether the user is determined as DTX, and the current common technique selects all the remaining code channels to estimate noise, and then estimates the signal power through the equalized constellation points. And when the ratio of the signal power to the noise power of the user is greater than a set threshold, the user performs a subsequent detection module, otherwise, the user determines DTX. The DTX threshold is determined according to the condition that a single user does not send signals, and when the ratio of the signal power to the noise power meets the DTX judgment specified by a protocol, the ACK does not exceed 1%, namely, the ratio is set as the DTX threshold.
However, when DTX detection is performed by the above-mentioned technique, all the remaining code channels are used to estimate the noise power, and when a few users are multiplexed, most of the remaining code channels are used for noise estimation, and the noise power is reduced to some extent after power averaging. When a high-power user appears in the multiplexed users, the high-power user is affected by a wireless channel and timely frequency offset, partial power of the user can be leaked to a nearby code channel, and when the code channel is just the code channel scheduled by the user but does not transmit PUCCH information, the user on the code channel is likely to have false detection. In addition, for product implementation, when there is no user multiplexing or only few users multiplexing, the calculation overhead of product implementation is large, and the user specification of the overall processing is limited.
An embodiment of the present specification provides a method for detecting discontinuous transmission DTX, which, as shown in fig. 1, includes:
s101, determining a user schedulable code channel, and acquiring a power value of each user schedulable code channel;
s102, according to the power value of the code channel which can be dispatched by each user, determining a target code channel with the maximum power value;
s103, acquiring an average noise power value of the non-user schedulable code channel adjacent to the target code channel;
s104, according to the average noise power value, carrying out DTX detection on the power value of the user schedulable code channel.
At present, the PUCCH format 1 supports multi-user multiplexing by using a code division technology, which can be divided into frequency hopping scenarios and non-frequency hopping scenarios, and the number of multiplexing users supported in different scenarios is different, when 14 symbols (PUCCH length) are scheduled by a high layer, 84 users are supported in the non-frequency hopping scenario to be multiplexed at the same time at the maximum, and 36 users are supported in the frequency hopping scenario to be multiplexed at the same time at the maximum. In order to avoid the situations of adjacent channel interference and the like, the method and the device determine the available code channels of the users according to the index number of the orthogonal sequences which can be dispatched by the users, the index of the orthogonal sequences and the cyclic shift corresponding to the index number of the orthogonal sequences which can be dispatched by the users. It should be noted that, in this embodiment, the power value for obtaining the schedulable code channel of each user may be the power value of all schedulable code channels of the user, or may be the power value of the schedulable code channel of the user for confirming that there is a user use.
At present, the number of orthogonal sequence indexes is at most 7, that is, 7 values of the orthogonal sequence indexes occ (i), i ═ 0,1,2,3,4,5,6}, in this specification, the orthogonal sequence indexes are classified into three types of cases, specifically, the number N of the orthogonal sequence indexes is less than 4 or equal to 6, the number N of the orthogonal sequence indexes is equal to 4 or equal to 7, and the number N of the orthogonal sequence indexes is equal to 5, and a method for determining a code channel that can be scheduled by a user corresponding to each type of case specifically includes:
if the number N of orthogonal sequence indices available to the user is less than 4 or equal to 6, the user schedulable code channel includes:
Mod(occ(i),3)＝0，m(i)＝{0,3,6,9}；
Mod(occ(i),3)＝1，m(i)＝{1,4,7,10}；
Mod(occ(i),3)＝2，m(i)＝{2,5,8,11}；
wherein occ (i) represents the orthogonal sequence index, occ (i) has a value range including i ═ {0,1 …, N-1}, m (i) represents the cyclic shift, and m (i) has a value range including (0 to 11), and the user schedulable code channel is determined according to occ (i) and m (i).
As shown in fig. 2, according to the above formula, when N is 1, occ (i) is 0, and the schedulable cyclic shift is m (i) {0,3,6,9 }; when N is 2, occ (i) is 0 and 1, occ (i) is 0, the above result is called, and when occ (i) is 1, m (i) {1,4,7,10 }; when N is 3, the above result includes occ (i), i is 0,1, and when occ (i) is 2, m (i) is {2,5,8,11 }.
If the number N of orthogonal sequence indices available to the user is equal to 4 or equal to 7, the user schedulable code channel includes:
mod (occ (i), N) ═ N-1, and m (i) is null;
in both cases, occ (i), i ═ 0,1 …, N-1, and i ═ 0,1 …, N-2, i is null when i ═ 0,1 …, N-1.
When i ═ {0,1 …, N-2}, the cyclic shift is as follows:
Mod(occ(i),3)＝0，m(i)＝{0,3,6,9}；
Mod(occ(i),3)＝1，m(i)＝{1,4,7,10}；
Mod(occ(i),3)＝2，m(i)＝{2,5,8,11}。
if the number N of orthogonal sequence indices available to the user is equal to 5, the user-schedulable code channel includes:
Mod(occ(i),N)＝0，m(i)＝{0,3,6,9}；
Mod(occ(i),N)＝1，m(i)＝{1,4,7,10}；
Mod(occ(i),N)＝2，m(i)＝{2,5,8,11}；
Mod(occ(i),N)＝N-1，m(i)＝{2,5,8,11}；
wherein, occ (i), i ═ {0,1 …, N-1}, m (i) represents a cyclic shift, and the user schedulable code channel is determined according to occ (i) and m (i).
In step S102, after determining the user schedulable code channels under different orthogonal sequence index numbers, a power value of each user schedulable code channel may be calculated, and this specification provides a method for calculating a power value of a user schedulable code channel, which specifically includes:
the channel estimation information of the schedulable code channel of each user is obtained by a least square method, wherein the least square method (also called a least square method) is a mathematical optimization technology. It finds the best functional match of the data by minimizing the sum of the squares of the errors.
The power value of the corresponding user schedulable code channel can be obtained through the channel estimation information of each user schedulable code channel.
The present specification provides a formula for calculating a power value of a user schedulable code channel, which is as follows:
P(i)＝|H(i)|2
h (i) is the channel estimation information of the user schedulable code channel obtained by the least square method, P (i) is the power value, the power value of each user schedulable code channel can be obtained by the formula, meanwhile, the calculated power values of the user schedulable code channels are sorted in size, the user schedulable code channel with the maximum power value can be obtained according to the sorting result, and the user schedulable code channel with the maximum power value is used as the target code channel.
In step S103, after the target code channel is determined, the position of the target code channel in the channel distribution diagram (as shown in fig. 2) can be determined according to the cyclic shift and the orthogonal sequence index corresponding to the target code channel, in fig. 2, any user schedulable code channel may be used as the target code channel (according to the power value determination, for convenience of description, the target code channel is subsequently marked as u), and simultaneously, the code channel adjacent to each user schedulable code channel is a user non-schedulable code channel, and these user non-schedulable code channels are determined as noise code channels.
Meanwhile, according to the difference of the numbers of orthogonal sequence indexes that can be used by users, the number of user non-schedulable code channels adjacent to each user schedulable code channel is different, so that the embodiment of the present specification further provides a method for determining the position of the user non-schedulable code channel adjacent to the target code channel, which specifically comprises the following steps:
when the number N of the orthogonal sequence indexes available to the user is more than or equal to 3, the method for determining the position of the user non-schedulable code channel (the position of the noise code channel) adjacent to the target code channel comprises the following steps:
(mod (m (u) +11,12), occ (u)), (mod (m (u)) +1,12), occ (u)), (m (u)), mod (occ (u)) + 1+ N, N)) and (m (u), mod (occ (u)) +1, N)), for a total of 4 noise code channels.
When the number N of orthogonal sequence indexes available to the user is equal to 2, the method for determining the position of the noise code channel comprises the following steps:
(mod (m (u) +11,12), occ (u)), (mod (m (u)) +1,12, occ (u)) and (m (u)), mod (occ (u)) -1+ N, N)), for a total of 3 noisy code channels.
When the number N of orthogonal sequence indexes available to the user is equal to 1, the method for determining the position of the noise code channel comprises the following steps:
(mod (m (u) +11,12), occ (u)), and (mod (m (u) +1,12), occ (u)), for a total of 2 noisy code channels.
When the noise code track is acquired, the noise code track can be generated by the formula p (i) | h (i)2Obtaining the power value of the noise code channel and obtaining the power value of the noise code channel through a formula
To obtain the average noise power value of the noise code channel.
In step S104, an administrator may preset a DTX threshold on the device (for example, configure the threshold in a storage medium of the device when the device leaves a factory), and when step S104 is executed, the ratio of the power value of the user-schedulable code channel to the average noise power value may be used to compare with the preset DTX threshold, and when the ratio is smaller than the preset DTX threshold, the corresponding user-schedulable code channel is determined to be a DTX code channel.
As can be seen from the foregoing embodiments, in the technical solution provided in this specification, the average power of the surrounding code channels of the user schedulable code channel with the maximum power value is used as the noise power, and the DTX detection is performed according to the noise power and the user schedulable code channel power, so that the DTX false detection of the user can be effectively avoided.
Based on the same idea concept as that of the above embodiments, the embodiments of the present specification further provide a mobile communication device, including: a processor and a machine-readable storage medium:
the machine-readable storage medium stores machine-executable instructions executable by the processor, the processor being caused by the machine-executable instructions to: the above embodiments are realized.
Embodiments of the present specification also provide a readable storage medium storing machine executable instructions that, when invoked and executed by a processor, cause the processor to: to realize the above embodiments
The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.
Other embodiments of the present description will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This specification is intended to cover any variations, uses, or adaptations of the specification following, in general, the principles of the specification and including such departures from the present disclosure as come within known or customary practice within the art to which the specification pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the specification being indicated by the following claims.
It will be understood that the present description is not limited to the precise arrangements described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present description is limited only by the appended claims.
The above description is only a preferred embodiment of the present disclosure, and should not be taken as limiting the present disclosure, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (12)
1. A method for discontinuous transmission, DTX, detection, the method comprising:
determining user schedulable code channels, and acquiring the power value of each user schedulable code channel;
determining a target code channel with the maximum power value according to the power value of the code channel which can be scheduled by each user;
acquiring an average noise power value of a non-user schedulable code channel adjacent to the target code channel;
and carrying out DTX detection on the power value of the user scheduling code channel according to the average noise power value.
2. The method according to claim 1, wherein the determining the code channels available to the user specifically comprises:
and determining the available code channels of the users according to the index number of the orthogonal sequences which can be dispatched by the users, the index of the orthogonal sequences and the cyclic shift corresponding to the index number of the orthogonal sequences which can be dispatched by the users.
3. The method according to claim 2, wherein the determining the user usable code track according to the number of user schedulable orthogonal sequence indexes, the orthogonal sequence index, and the cyclic shift corresponding to the number of user schedulable orthogonal sequence indexes comprises:
if the number N of orthogonal sequence indices available to the user is less than 4 or equal to 6, the user schedulable code channel includes:
Mod(occ(i),3)＝0，m(i)＝{0,3,6,9}；
Mod(occ(i),3)＝1，m(i)＝{1,4,7,10}；
Mod(occ(i),3)＝2，m(i)＝{2,5,8,11}；
wherein, occ (i), i ═ {0,1 …, N-1}, represents an orthogonal sequence index, and m (i) represents a cyclic shift, and a user schedulable code channel is determined according to occ (i) and m (i).
4. The method according to claim 2, wherein the determining the user usable code track according to the number of user schedulable orthogonal sequence indexes, the orthogonal sequence index, and the cyclic shift corresponding to the number of user schedulable orthogonal sequence indexes comprises:
if the number N of orthogonal sequence indices available to the user is equal to 4 or equal to 7, the user schedulable code channel includes:
mod (occ (i), N) ═ N-1, and m (i) is null;
wherein, occ (i), i ═ {0,1 …, N-1}, represents the orthogonal sequence index, and when the number of orthogonal sequence indexes is equal to 4 or equal to 7, the cyclic shifts are all null values; and the number of the first and second groups,
Mod(occ(i),3)＝0，m(i)＝{0,3,6,9}；
Mod(occ(i),3)＝1，m(i)＝{1,4,7,10}；
Mod(occ(i),3)＝2，m(i)＝{2,5,8,11}；
where, occ (i), i ═ {0,1 … N-2}, represents an orthogonal sequence index, and m (i) represents a cyclic shift.
5. The method according to claim 2, wherein the determining the user usable code track according to the number of user schedulable orthogonal sequence indexes, the orthogonal sequence index, and the cyclic shift corresponding to the number of user schedulable orthogonal sequence indexes comprises:
if the number of orthogonal sequence indexes N available to the user is equal to 5, the user-schedulable code channel includes:
Mod(occ(i),N)＝0，m(i)＝{0,3,6,9}；
Mod(occ(i),N)＝1，m(i)＝{1,4,7,10}；
Mod(occ(i),N)＝2，m(i)＝{2,5,8,11}；
Mod(occ(i),N)＝N-1，m(i)＝{2,5,8,11}；
wherein, occ (i), i ═ {0,1 …, N-1} represents the orthogonal sequence index, m (i) represents the cyclic shift, and the user schedulable code channel is determined according to occ (i) and m (i).
6. The method according to claim 1, wherein the obtaining the power value of the schedulable code channel of each user specifically includes:
acquiring channel estimation information of a user schedulable code channel by a least square method;
and acquiring the power value of the user scheduling code channel according to the channel estimation information.
7. The method according to claim 1, wherein said determining a target code channel having a maximum power value according to the power value of the schedulable code channel of each user specifically comprises:
and sorting the power values of the schedulable code channels of the users according to the size, determining the schedulable code channel of the user with the maximum power value according to the sorting result, and taking the schedulable code channel of the user with the maximum power value as a target code channel.
8. The method of claim 1, further comprising:
acquiring a target orthogonal sequence index and a target cyclic shift corresponding to the target code channel;
and determining the non-user schedulable code channel adjacent to the target code channel according to the target orthogonal sequence index, the target cyclic shift and the number of the user schedulable orthogonal sequence indexes.
9. The method according to claim 8, wherein the obtaining the average noise power value of the non-user schedulable code channel adjacent to the target code channel specifically comprises:
acquiring channel estimation information of non-user schedulable code channels adjacent to the target code channel by a least square method;
determining the power value of each non-user schedulable code channel according to the channel estimation information of each non-user schedulable code channel;
and acquiring the average noise power value of the non-user schedulable code channel adjacent to the target code channel according to the power value of each non-user schedulable code channel.
10. The method of claim 1, wherein the performing DTX detection on the power value of the user-schedulable code channel according to the average noise power value specifically comprises:
comparing the ratio of the power value of the user schedulable code channel to the average noise power value with a preset DTX threshold value;
and when the value is smaller than the preset DTX threshold value, determining that the corresponding user schedulable code channel is a DTX code channel.
11. A mobile communication device, characterized in that the mobile communication device comprises: a processor and a machine-readable storage medium;
the machine-readable storage medium stores machine-executable instructions executable by the processor, the processor being caused by the machine-executable instructions to: carrying out the method of any one of claims 1 to 10.
12. A readable storage medium having stored thereon machine executable instructions which, when invoked and executed by a processor, cause the processor to: carrying out the method steps of any one of claims 1 to 10.
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