CN104080098A - Scheduling method for terminal measurement and terminal - Google Patents
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- 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
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Abstract
The invention discloses a scheduling method for terminal measurement and a terminal. The method comprises the following steps: acquiring a first frequency list and a second frequency list at each measuring period, wherein the first frequency list consists of M frequencies selected from an initial frequency list, the remaining frequencies construct a dynamic pool, and the second frequency list consists of the first S frequencies of the dynamic pool; combining the first frequency list and the second frequency list, and measuring all frequencies in a combined frequency list; sequencing other frequencies except the frequency of a service cell in the combined frequency list; updating the first frequency list by using first (M-1) frequencies with highest signal quality in the sequenced frequencies, and updating the dynamic pool, wherein the updated dynamic pool consists of frequencies except the updated first frequency list in the initial frequency list, and other frequencies except the (M-1) frequencies in the sequenced frequencies are positioned at the end of the dynamic pool; and selecting the first S frequencies of the updated dynamic pool to update the second frequency list. By adopting the scheduling method and the terminal, the terminal energy consumption can be lowered, and the measuring performance is ensured.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a scheduling method for terminal measurement and a terminal.
Background
In TD-SCDMA (time division synchronous code division multiple access) networks under the 3GPP TS25.123 standard, a UE (user terminal) supports measurements on at least 9 frequencies in idle mode and connected mode, including intra-frequency and inter-frequency measurements. If the UE needs to support measurements for band 34 (2010-2025 MHz) and band 39 (1880-1920 MHz), more than 9 frequencies need to be measured.
In the prior art, a scheduling method for terminal measurement is as follows: the upper layer configures all frequencies required by the physical layer, and the physical layer measures all configured frequencies regardless of the presence or absence of a signal. This is illustrated below by way of an example: assuming that the number of frequencies configured by the higher layer is 9 (in an actual network, this does not mean that all the 9 frequencies have signals), energy consumption is wasted if the physical layer measures the 9 frequencies all the time in the idle mode, and more radio resources are occupied in the connected mode, and in addition, for the multi-mode terminal, the inter-RAT (inter-system) measurement can be performed only with less radio resources.
Disclosure of Invention
In view of this, the present invention provides a scheduling method for terminal measurement and a terminal, so as to solve the problems of poor terminal measurement performance and energy consumption waste in the prior art.
In order to solve the above problem, the present invention provides a scheduling method for terminal measurement, including:
in each measurement period, acquiring a first frequency list and a second frequency list, wherein the first frequency list is composed of M frequencies including the frequency of a serving cell of the terminal selected from an initial frequency list, the second frequency list is composed of the first S frequencies in a dynamic pool, and the dynamic pool is composed of other frequencies except the first frequency list in the initial frequency list;
merging the first frequency list and the second frequency list;
measuring all frequencies in the combined frequency list;
according to the measurement result, sorting other frequencies except the frequency of the service cell in the combined frequency list according to the signal quality;
updating the first frequency list by adopting the first M-1 frequencies with the strongest signal quality in the frequencies participating in the sorting, and updating the dynamic pool, wherein the updated dynamic pool is composed of other frequencies except the updated first frequency list in the initial frequency list, and the other frequencies except the M-1 frequencies in the frequencies participating in the sorting are positioned at the last of the dynamic pool; and selecting the first S frequencies from the updated dynamic pool to update the second frequency list.
Preferably, the step of acquiring the first frequency list and the second frequency list in each measurement period further includes:
acquiring the initial frequency list from a network side;
selecting M frequencies including the frequency of the service cell of the terminal from the initial frequency list to form the first frequency list, wherein other frequencies except the first frequency list in the initial frequency list form the dynamic pool;
and selecting the first S frequencies from the dynamic pool to form the second frequency list.
Preferably, the signal quality of the frequency comprises: received signal code power of said frequency and/or signal to noise ratio of said frequency.
Preferably, the frequency of the serving cell of the terminal is located in the first of the first frequency list, wherein the step of updating the first frequency list by using the top M-1 frequencies with the strongest signal quality among the frequencies participating in the ranking specifically includes:
keeping the first frequency in the first frequency list unchanged, and updating the 2 nd to M th frequencies in the first frequency list by using the first M-1 frequencies with the strongest signal quality in the sorted frequencies.
Preferably, the terminal is a TD-SCDMA terminal, the measurement period is a DRX period length when the terminal is in an idle mode, and the measurement period is changed within 480ms when the terminal is in a connected mode.
Preferably, M is 3 or 4, S is 1 or 2 when the terminal is in a connected mode, and the terminal is in an idle modeWherein,denotes rounding up, N is the number of TDD frequencies, TevaluateNTDDFor the evaluation period, DRX length is DRX cycle length.
The present invention also provides a terminal, comprising:
a first obtaining module, configured to obtain, in each measurement period, a first frequency list and a second frequency list, where the first frequency list is composed of M frequencies selected from an initial frequency list and including frequencies of a serving cell of the terminal, the second frequency list is composed of S first frequencies in a dynamic pool, and the dynamic pool is composed of other frequencies in the initial frequency list except for the first frequency list;
a merging module, configured to merge the first frequency list and the second frequency list;
the measuring module is used for measuring all frequencies in the combined frequency list;
a sorting module, configured to sort, according to the measurement result and according to the signal quality, other frequencies in the combined frequency list except for the frequency of the serving cell;
an updating module, configured to update the first frequency list with the first M-1 frequencies with the strongest signal quality among the frequencies participating in the ranking, and update the dynamic pool, where the updated dynamic pool is composed of other frequencies in the initial frequency list except the updated first frequency list, and the other frequencies in the frequencies participating in the ranking except the M-1 frequencies are located at the end of the dynamic pool; and selecting the first S frequencies from the updated dynamic pool to update the second frequency list.
Preferably, the terminal further includes:
a second obtaining module, configured to obtain the initial frequency list from a network side;
a first list generating module, configured to select M frequencies including a frequency of a serving cell of the terminal from the initial frequency list to form the first frequency list, where other frequencies in the initial frequency list except the first frequency list form the dynamic pool;
and the second list generation module is used for selecting the first S frequencies from the dynamic pool to form the second frequency list.
Preferably, the signal quality of the frequency comprises: received signal code power of said frequency and/or signal to noise ratio of said frequency.
Preferably, the frequency of the serving cell of the terminal is located in a first one of the first frequency list, wherein the updating module further includes:
and the execution submodule is used for keeping the first frequency in the first frequency list unchanged and updating the 2 nd to M th frequencies in the first frequency list by adopting the top M-1 frequencies with the strongest signal quality in the sorted frequencies.
The invention has the following beneficial effects:
the terminal selects a plurality of frequencies with stronger signal quality from the configured frequencies to measure, and does not need to measure all the configured frequencies, so that the energy consumption of the terminal can be reduced.
Drawings
Fig. 1 is a flowchart illustrating a scheduling method for terminal measurement according to a first embodiment of the present invention;
fig. 2 is a subframe structure diagram of a TD-SCDMA network according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a terminal according to a third embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to solve the problems of poor terminal measurement performance and energy consumption waste in the prior art, in the following embodiment of the invention, the terminal does not measure all frequencies in the configured initial frequency list, but selects a plurality of frequencies with stronger signal quality to measure, so that the energy consumption of the terminal is reduced under the condition of ensuring the measurement performance.
Example one
Fig. 1 is a schematic flowchart of a scheduling method for terminal measurement according to a first embodiment of the present invention, where the method includes the following steps:
step 101, in each measurement period, obtaining a first frequency list and a second frequency list, where the first frequency list is composed of M frequencies including frequencies of a serving cell of the terminal selected from an initial frequency list, the second frequency list is composed of the first S frequencies in a dynamic pool, and the dynamic pool is composed of other frequencies in the initial frequency list except for the first frequency list;
step 102, merging the first frequency list and the second frequency list;
step 103, measuring all frequencies in the combined frequency list;
step 104, according to the measurement result, sorting other frequencies except the frequency of the service cell in the combined frequency list according to the signal quality;
step 105, updating the first frequency list by using the first M-1 frequencies with the strongest signal quality in the frequencies participating in the sorting, and updating the dynamic pool, wherein the updated dynamic pool is composed of other frequencies except the updated first frequency list in the initial frequency list, and the other frequencies except the M-1 frequencies in the frequencies participating in the sorting are positioned at the last of the dynamic pool; and selecting the first S frequencies from the updated dynamic pool to update the second frequency list.
The measurement period in step 101 may be selected to have different values according to different networks and different states of the terminal.
In generating the first frequency list, the frequencies may be selected from the initial frequency list according to the following methods:
the method comprises the following steps: in general, the frequency of the serving cell of the terminal is placed at the first position of the initial frequency list, and for convenience, the first M frequencies may be sequentially selected from the initial frequency list to form a first frequency list; when the frequency of the serving cell of the terminal is not in the first position of the initial frequency list, the frequency of the serving cell of the terminal may be selected first for the intra-frequency measurement, and then the first M-1 other frequencies may be sequentially selected from the initial frequency list.
The second method comprises the following steps: the frequency of the serving cell of the terminal can be selected first for co-frequency measurement, and then M-1 other frequencies can be selected randomly from the initial frequency list.
The third method comprises the following steps: it is also possible to perform an initial measurement on each frequency in the initial frequency list, then sort all frequencies according to the signal quality, and then select according to method one, so that the frequencies in the first frequency list have higher signal levels.
In step 103, it is necessary to complete the measurement of all the frequencies in the combined frequency list in one measurement period.
The signal quality of the frequency in the step 104 includes: a Received Signal Code Power (RSCP) of the frequency and/or a signal-to-noise ratio (SNR) of the frequency. Specifically, the frequencies other than the frequency of the serving cell of the terminal in the combined frequency list may be sorted in order of high signal quality, or the frequencies other than the frequency of the serving cell in the combined frequency list may be sorted in order of low signal quality.
For convenience, the frequency of the serving cell of the terminal may be placed in the first of the first frequency list, and at this time, the step of updating the first M-1 frequencies with the strongest signal quality among the frequencies participating in the ranking in step 105 to the first frequency list specifically includes: keeping the first frequency in the first frequency list unchanged, and updating the 2 nd to M th frequencies in the first frequency list by using the first M-1 frequencies with the strongest signal quality in the sorted frequencies.
The method for updating the dynamic pool in step 105 may have the following situations:
the first condition is as follows: when the frequencies with lower signal quality (i.e. the frequencies other than the M-1 frequencies with better signal quality) among the ranked frequencies are the frequencies in the second frequency list (which are, of course, present in the dynamic pool at the same time), the frequencies with lower signal quality are moved to the rearmost of the dynamic pool, and if there are a plurality of frequencies with lower signal quality, the frequencies with lower signal quality can be arranged in order from high to low and moved to the rearmost of the dynamic pool, i.e. the one with lowest signal quality among the frequencies with lower signal quality is placed at the rearmost of the dynamic pool. Case two: when the lower-quality frequency among the ranked frequencies is not the frequency in the second frequency list, the lower-quality frequency may be placed at the rearmost of the dynamic pool, and if there are more lower-quality frequencies, the lower-quality frequencies may be arranged in order from high to low and placed at the rearmost of the dynamic pool, that is, the lowest-quality frequency among the lower-quality frequencies is placed at the rearmost of the dynamic pool. In addition, frequencies in the second frequency list that are located among the first M-1 frequencies with the strongest signal quality need to be removed from the dynamic pool.
The initial frequency list in this embodiment is configured by the network side and obtained by the terminal from the network side, so that the following steps may be further included before the step 101: acquiring the initial frequency list from a network side; selecting M frequencies including the frequency of the service cell of the terminal from the initial frequency list to form the first frequency list, wherein other frequencies except the first frequency list in the initial frequency list form the dynamic pool; and selecting the first S frequencies from the dynamic pool to form the second frequency list.
Of course, the sum of M and S in the above embodiment needs to be smaller than the number of frequencies in the initial frequency list.
Example two
In this embodiment, a TD-SCDMA (1.28 kbps low chip rate, the subframe structure of which is shown in fig. 2, wherein the terminal measurement is carried by using T0 timeslot) terminal in idle mode is taken as an example to describe the scheduling method of terminal measurement in the present invention.
It should be noted that, in the idle mode, the measurement cycle of the TD-SCDMA terminal is the DRX cycle length.
Assuming that the number of TDD frequencies is 7, the initial frequency list is { f0, f1, f2, f3, f4, f5, f6}, where f0 is the frequency of the serving cell of the terminal, and the measurement period T is T0measperiodIt was 1.28 s.
In step 201, the terminal obtains an initial frequency list { f0, f1, f2, f3, f4, f5, f6} from the network side.
Step 202, the terminal selects the first 3 frequencies including the frequency f0 of the serving cell of the terminal from the initial frequency list { f0, f1, f2, f3, f4, f5, f6} to form a static list { f0, f1, f2}, and the other frequencies except for the static list { f0, f1, f2} in the initial frequency list { f0, f1, f2, f3, f4, f5, f6} form a dynamic pool { f3, f4, f5, f6 }; and selecting the first 1 frequency from the dynamic pools { f3, f4, f5 and f6} to form a dynamic list { f3 }.
The static list in this embodiment is equivalent to the first frequency list in the first embodiment, the dynamic list is equivalent to the second frequency list in the first embodiment, and the frequency f0 of the serving cell of the terminal is always located in the first of the static list.
In each test period TmeasperiodExecuting the following steps 203 to 206:
step 203, in the first test period TmeasperiodAnd combining the static list and the dynamic list to obtain a combined frequency list { f0, f1, f2, f3 }.
In step 204, all frequencies in the merged frequency list { f0, f1, f2, f3} are measured.
And step 205, according to the measurement result, sorting the other frequencies except the frequency f0 of the serving cell in the combined frequency list { f0, f1, f2 and f3} in the order from high to low of RSCP (received signal code power).
Step 206, updating the first frequency list by using the first 2 frequencies with the strongest signal quality in the frequencies participating in the ranking, and updating the dynamic pool, wherein the updated dynamic pool is composed of other frequencies in the initial frequency list except the updated first frequency list, and the other frequencies in the frequencies participating in the ranking except the 2 frequencies are located at the last of the dynamic pool; and selecting the first S frequencies from the updated dynamic pool to update the second frequency list.
In particular, the method comprises the following steps of,
case 1: if Power (f1) > Power (f2) > Power (f3)
The static list is updated to be f0, f1, f2, the dynamic pool is updated to be f4, f5, f6, f3, and the dynamic list is updated to be f 4.
Case 2: if Power (f1) > Power (f3) > Power (f2)
The static list is updated to be f0, f1, f3, the dynamic pool is updated to be f4, f5, f6, f2, and the dynamic list is updated to be f 4.
Case 3: if Power (f2) > Power (f1) > Power (f3)
The static list is updated to be f0, f2, f1, the dynamic pool is updated to be f4, f5, f6, f3, and the dynamic list is updated to be f 4.
Case 4: if Power (f3) > Power (f1) > Power (f2)
The static list is updated to be f0, f3, f1, the dynamic pool is updated to be f4, f5, f6, f2, and the dynamic list is updated to be f 4.
Case 5: if Power (f2) > Power (f3) > Power (f1)
The static list is updated to be f0, f2, f3, the dynamic pool is updated to be f4, f5, f6, f1, and the dynamic list is updated to be f 4.
Case 6: if Power (f3) > Power (f2) > Power (f1)
The static list is updated to be f0, f3, f2, the dynamic pool is updated to be f4, f5, f6, f1, and the dynamic list is updated to be f 4.
The Power mentioned above refers to P-CCPCP RSCP for frequency.
For the TD-SCDMA terminal, the configuration of each parameter is as follows:
(1) measuring period Tmeasperiod
In idle mode, the period T is measuredmeasperiodEqual to the DRX cycle length;
in connected mode, the period T is measuredmeasperiodThe change can be made within 480ms, with a default value of 70 ms.
(2) The value range of the number M of the frequencies in the static list is {3,4}, and the default value is 3;
(3) number of frequencies S in dynamic list
In the connection mode, the value range of S is {1,2}, the default value is 1, and the value of S is related to the value of M, namely S + M is ensured to be less than 5;
in the idle mode, the first and second switching elements are,wherein,denotes rounding up, N is the number of TDD frequencies, TevaluateNTDDFor the evaluation period, DRX length is DRX cycle length.
The following table is a table corresponding to various parameters specified in the 3GPP TS25.123 standard:
the foregoing embodiment describes the scheduling method for terminal measurement by taking TD-SCDMA terminal measurement in idle mode as an example, and the process of TD-SCDMA terminal measurement in connected mode is similar to the above method, and is not described here one by one.
EXAMPLE III
Fig. 3 is a schematic structural diagram of a terminal according to a third embodiment of the present invention, where the terminal includes:
a first obtaining module 301, configured to obtain, in each measurement period, a first frequency list and a second frequency list, where the first frequency list is composed of M frequencies selected from an initial frequency list and including frequencies of a serving cell of the terminal, the second frequency list is composed of the first S frequencies in a dynamic pool, and the dynamic pool is composed of other frequencies in the initial frequency list except for the first frequency list;
a merging module 302, configured to merge the first frequency list and the second frequency list;
a measuring module 303, configured to measure all frequencies in the merged frequency list;
a sorting module 304, configured to sort, according to the measurement result and according to the signal quality, other frequencies in the combined frequency list except for the frequency of the serving cell;
an updating module 305, configured to update the first frequency list with the first M-1 frequencies with the strongest signal quality among the frequencies participating in the ranking, and update the dynamic pool, where the updated dynamic pool is composed of the other frequencies in the initial frequency list except the updated first frequency list, and the other frequencies except the M-1 frequencies among the frequencies participating in the ranking are located at the last of the dynamic pool; and selecting the first S frequencies from the updated dynamic pool to update the second frequency list.
The initial frequency list in this embodiment is configured by the network side and obtained by the terminal from the network side, so that the terminal further includes:
a second obtaining module, configured to obtain the initial frequency list from a network side;
a first list generating module, configured to select M frequencies including a frequency of a serving cell of the terminal from the initial frequency list to form the first frequency list, where other frequencies in the initial frequency list except the first frequency list form the dynamic pool;
and the second list generation module is used for selecting the first S frequencies from the dynamic pool to form the second frequency list.
To implement the method, the frequency of the serving cell of the terminal may be placed in the first of the first frequency list, and in this case, the updating module 305 further includes:
and the execution submodule is used for keeping the first frequency in the first frequency list unchanged and updating the 2 nd to M th frequencies in the first frequency list by adopting the top M-1 frequencies with the strongest signal quality in the sorted frequencies.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A scheduling method for terminal measurement is characterized by comprising the following steps:
in each measurement period, acquiring a first frequency list and a second frequency list, wherein the first frequency list is composed of M frequencies including the frequency of a serving cell of the terminal selected from an initial frequency list, the second frequency list is composed of the first S frequencies in a dynamic pool, and the dynamic pool is composed of other frequencies except the first frequency list in the initial frequency list;
merging the first frequency list and the second frequency list;
measuring all frequencies in the combined frequency list;
according to the measurement result, sorting other frequencies except the frequency of the service cell in the combined frequency list according to the signal quality;
updating the first frequency list by adopting the first M-1 frequencies with the strongest signal quality in the frequencies participating in the sorting, and updating the dynamic pool, wherein the updated dynamic pool is composed of other frequencies except the updated first frequency list in the initial frequency list, and the other frequencies except the M-1 frequencies in the frequencies participating in the sorting are positioned at the last of the dynamic pool; and selecting the first S frequencies from the updated dynamic pool to update the second frequency list.
2. The method for scheduling measurement of a terminal according to claim 1, wherein the step of acquiring the first frequency list and the second frequency list in each measurement period further comprises:
acquiring the initial frequency list from a network side;
selecting M frequencies including the frequency of the service cell of the terminal from the initial frequency list to form the first frequency list, wherein other frequencies except the first frequency list in the initial frequency list form the dynamic pool;
and selecting the first S frequencies from the dynamic pool to form the second frequency list.
3. The method for scheduling of terminal measurements according to claim 1, wherein the signal quality of the frequency comprises: received signal code power of said frequency and/or signal to noise ratio of said frequency.
4. The method for scheduling measurement by a terminal according to claim 1, wherein the frequency of the serving cell of the terminal is located at the first of the first frequency list, and wherein the step of updating the first frequency list using the top M-1 frequencies with the strongest signal quality among the ranked frequencies comprises:
keeping the first frequency in the first frequency list unchanged, and updating the 2 nd to M th frequencies in the first frequency list by using the first M-1 frequencies with the strongest signal quality in the sorted frequencies.
5. The method of claim 1, wherein the terminal is a TD-SCDMA terminal, the measurement period is DRX cycle length when the terminal is in idle mode, and the measurement period varies within 480ms when the terminal is in connected mode.
6. The method for scheduling measurement of a terminal according to claim 5, wherein M is 3 or 4, S is 1 or 2 when the terminal is in a connected mode, and the terminal is in an idle modeWherein,denotes rounding up, N is the number of TDD frequencies, TevaluateNTDDFor the evaluation period, DRX length is DRX cycle length.
7. A terminal, comprising:
a first obtaining module, configured to obtain, in each measurement period, a first frequency list and a second frequency list, where the first frequency list is composed of M frequencies selected from an initial frequency list and including frequencies of a serving cell of the terminal, the second frequency list is composed of S first frequencies in a dynamic pool, and the dynamic pool is composed of other frequencies in the initial frequency list except for the first frequency list;
a merging module, configured to merge the first frequency list and the second frequency list;
the measuring module is used for measuring all frequencies in the combined frequency list;
a sorting module, configured to sort, according to the measurement result and according to the signal quality, other frequencies in the combined frequency list except for the frequency of the serving cell;
an updating module, configured to update the first frequency list with the first M-1 frequencies with the strongest signal quality among the frequencies participating in the ranking, and update the dynamic pool, where the updated dynamic pool is composed of other frequencies in the initial frequency list except the updated first frequency list, and the other frequencies in the frequencies participating in the ranking except the M-1 frequencies are located at the end of the dynamic pool; and selecting the first S frequencies from the updated dynamic pool to update the second frequency list.
8. The terminal of claim 7, further comprising:
a second obtaining module, configured to obtain the initial frequency list from a network side;
a first list generating module, configured to select M frequencies including a frequency of a serving cell of the terminal from the initial frequency list to form the first frequency list, where other frequencies in the initial frequency list except the first frequency list form the dynamic pool;
and the second list generation module is used for selecting the first S frequencies from the dynamic pool to form the second frequency list.
9. The terminal of claim 7, wherein the signal quality for the frequency comprises: received signal code power of said frequency and/or signal to noise ratio of said frequency.
10. The terminal of claim 7, wherein the frequency of the serving cell of the terminal is located at a first one of the first list of frequencies, wherein the updating module further comprises:
and the execution submodule is used for keeping the first frequency in the first frequency list unchanged and updating the 2 nd to M th frequencies in the first frequency list by adopting the top M-1 frequencies with the strongest signal quality in the sorted frequencies.
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| CN109587741A (en) * | 2017-09-28 | 2019-04-05 | 中国移动通信有限公司研究院 | A kind of indicating means of measurement frequency point, frequency point measurement method, base station and terminal |
| CN109587741B (en) * | 2017-09-28 | 2020-08-28 | 中国移动通信有限公司研究院 | Indication method for measuring frequency point, frequency point measuring method, base station and terminal |
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