CN103327616A - Sending and receiving method of control signaling, base station and user equipment - Google Patents
Sending and receiving method of control signaling, base station and user equipment Download PDFInfo
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
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Abstract
The invention provides a sending and receiving method of control signaling, a base station and user equipment. The method includes the steps of firstly, configuring an E-PHICH resource, wherein the E-PHICH resource is configured in at least a part of resources occupied by searching space where a physical downlink control channel E-PDCCH is reinforced; secondly, determining an occupied part of an E-PHICH, corresponding to UE, in the E-PHICH resource; thirdly, mapping information of the E-PHICH corresponding to the UE onto the corresponding occupied part in the E-PHICH resource and sending the information to the UE. According to sending and receiving method of control signaling, the base station and the user equipment, a transmission scheme of the E-PHICH can be optimized.
Description
Technical Field
The present invention relates to mobile communication technologies, and in particular, to a method for sending and receiving a control signaling, a base station, and a user equipment.
Background
In a Long Term Evolution (Long Term Evolution, LTE) or Long Term Evolution system further enhanced (LTE-a) system, after an evolved base station (evolved node b, eNB) receives an uplink data packet sent by User Equipment (UE), it needs to send correct response (ACK) or incorrect response (Non-Acknowledgement, NACK) information to the UE through a Physical hybrid HARQ indicator channel (PHICH). In the prior art, a PHICH is configured in a Physical Downlink Control Channel (PDCCH) region, the PDCCH region occupies first n symbols of a subframe, n is a natural number from 1 to 4, and the PHICH is scattered in a frequency domain mapping range as much as possible within the entire system bandwidth to obtain a frequency diversity gain.
However, with the introduction of a new carrier type, a control region may not be configured in a new carrier scenario, and then the PHICH cannot be configured according to the principle that the existing PHICH is configured in the control region. To solve this problem, the PHICH needs to be optimized or a new design is introduced.
Disclosure of Invention
The embodiment of the invention provides a method for sending and receiving control signaling, a base station and user equipment, which are used for optimizing the processing of PHICH.
The embodiment of the invention provides a method for sending a control signaling, which comprises the following steps:
configuring E-PHICH resources of an enhanced physical hybrid field retransmission request indication channel, wherein the E-PHICH resources are configured in at least part of resources occupied by a search space of an enhanced physical downlink control channel (E-PDCCH);
determining an occupied part of an E-PHICH corresponding to User Equipment (UE) in the E-PHICH resource;
and mapping the information of the E-PHICH corresponding to the UE to the corresponding occupied part in the E-PHICH resource, and sending the information to the UE.
The embodiment of the invention provides a method for receiving a control signaling, which comprises the following steps:
acquiring enhanced physical hybrid field retransmission request indication channel (E-PHICH) resources, wherein the E-PHICH resources are configured in at least part of resources occupied by a search space of an enhanced physical downlink control channel (E-PDCCH);
determining an occupied part of an E-PHICH corresponding to User Equipment (UE) in the E-PHICH resource;
and receiving information of the E-PHICH corresponding to the UE in a corresponding occupied part of the E-PHICH resource.
An embodiment of the present invention provides a base station, including:
the processing module is used for configuring enhanced physical hybrid field retransmission request indication channel (E-PHICH) resources and determining the occupied part of an E-PHICH corresponding to User Equipment (UE) in the E-PHICH resources, wherein the E-PHICH resources are configured in at least part of resources occupied by a search space of an enhanced physical downlink control channel (E-PDCCH);
and the sending module is used for mapping the information of the E-PHICH corresponding to the UE to the corresponding occupied part in the E-PHICH resource and sending the information to the UE.
An embodiment of the present invention provides a user equipment UE, including:
the processing module is used for acquiring an enhanced physical hybrid field retransmission request indication channel (E-PHICH) resource and determining an occupied part of an E-PHICH corresponding to the UE in the E-PHICH resource, wherein the E-PHICH resource is configured in at least part of resources occupied by a search space of an enhanced physical downlink control channel (E-PDCCH);
a receiving module, configured to receive information of an E-PHICH corresponding to the UE in a corresponding occupied portion of the E-PHICH resource.
According to the technical scheme, the E-PHICH resource is configured in at least part of the resources occupied by the search space of the E-PDCCH, so that the problem that the E-PHICH resource is configured in the control region in the prior art and cannot be configured can be avoided, and the optimization of the PHICH is realized.
Drawings
Fig. 1 is a flowchart illustrating a method for sending control signaling according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a method for sending a control signaling according to another embodiment of the present invention;
FIG. 3 is a diagram illustrating an embodiment of E-PHICH resource allocation in the present invention;
FIG. 4 is a diagram of another embodiment of E-PHICH resource allocation in the present invention;
FIG. 5 is a diagram of another embodiment of E-PHICH resource allocation in the present invention;
fig. 6 is a flowchart illustrating a method for sending control signaling according to another embodiment of the present invention;
FIG. 7 is a diagram of another embodiment of E-PHICH resource allocation in the present invention;
fig. 8 is a flowchart illustrating a method for sending control signaling according to another embodiment of the present invention;
FIG. 9 is a flowchart illustrating a method for sending control signaling according to another embodiment of the present invention
Fig. 10 is a flowchart illustrating a method for receiving a control signaling according to an embodiment of the present invention;
fig. 11 is a flowchart illustrating a method for receiving control signaling according to another embodiment of the present invention;
FIG. 12 is a block diagram of a base station according to an embodiment of the present invention;
fig. 13 is a schematic structural diagram of a ue according to an embodiment of the present invention.
Detailed Description
Fig. 1 is a flowchart illustrating an embodiment of a method for sending control signaling according to the present invention, including:
step 11: an eNB configures an enhanced PHICH (enhanced PHICH, E-PHICH) resource, wherein the E-PHICH resource is configured in at least part of resources occupied by a search space of an enhanced physical downlink control channel (enhanced PDCCH);
information of at least one E-PHICH group can be mapped on the E-PHICH resource, each E-PHICH group including at least one E-PHICH, or information of at least one E-PHICH can be mapped on the E-PHICH resource;
in the embodiment of the invention, the existing PHICH is optimized, the optimized PHICH is called as an E-PHICH, and the physical actions of the E-PHICH and the PHICH are the same, for example, the E-PHICH and the PHICH are all used for transmitting ACK/NACK information and the like; the difference is that the E-PHICH and the PHICH adopt different resources, mapping modes and the like. The E-PHICHs may be transmitted in groups, for example, each PHICH group includes 8 PHICHs in the prior art, and similarly, each E-PHICH group in this embodiment may also include 8E-PHICHs.
Each E-PHICH group may include an E-PHICH of one UE or include E-PHICHs of a plurality of UEs, and each UE may correspond to one or more E-PHICHs.
Optionally, the E-PHICH may also be sent in units of channels, and at this time, at least one E-PHICH may be mapped on the E-PHICH resource. In the embodiment of the invention, an E-PHICH group is taken as an example.
The search space of the E-PDCCH is divided in a manner including a common search space of the E-PDCCH and a specific search space of the UE. A common search space of the E-PDCCH is visible to all UEs so as to simultaneously transmit E-PHICHs of a plurality of UEs; and the E-PHICH transmitted in the common search space of the E-PDCCH may not employ UE-specific precoding, i.e., not employ a transmission scheme based on channel information, but employ a transmission scheme not based on channel information, such as transmit diversity and random beamforming.
In addition, the search space of the E-PDCCH can be divided according to another mode, and comprises a search space of a centralized E-PDCCH and a search space of a distributed E-PDCCH; optionally, the search space of the E-PDCCH, whether centralized or distributed, may be further divided into a common search space of the E-PDCCH and a specific search space of the UE.
Furthermore, the search space of the E-PDCCH may further include a search space of the E-PDCCH of at least one aggregation level.
Therefore, in the embodiments of the present invention, if not specifically stated, the search space of the E-PDCCH is generic, and includes a common search space of the E-PDCCH and a specific search space of the UE, or includes a search space of a localized E-PDCCH and a search space of a distributed E-PDCCH, or includes search spaces of E-PDCCHs of different aggregation levels. The common search space of the E-PDCCH is specifically referred to as a search space of the E-PDCCH juxtaposed to a specific search space of the UE.
Optionally, for the search space of the broadly-referred E-PDCCH:
an E-PHICH Resource can be configured in a time frequency Resource of at least one Resource Block (RB) or RB pair occupied by a search space of the E-PDCCH; or,
an E-PHICH resource can be configured in a time frequency resource occupied by at least one RB or at least one symbol in a RB pair of the E-PDCCH; or,
the E-PHICH resource may be configured in an RB or RB pair where the search space of the E-PDCCH is located, and a part of the resource that is not occupied by the candidate E-PDCCH in the search space of the E-PDCCH (for details of this manner, see the following embodiment shown in fig. 9).
Optionally, for the common search space of the E-PDCCH, the following may be used:
the E-PHICH resource can be configured in a time frequency resource where a public search space of the E-PDCCH is located; or, if the symbol occupied by the common search space of the E-PDCCH starts from the (n + 1) th symbol, the E-PHICH resource is configured in the time-frequency resource corresponding to the first n symbols of the resource block RB or RB pair occupied by the common search space of the E-PDCCH (this way may specifically refer to the embodiment shown in subsequent fig. 6).
Step 12: the eNB determines an occupied part of an E-PHICH corresponding to the UE in the E-PHICH resource;
the eNB can determine an E-PHICH group where the UE is located and a specific corresponding E-PHICH in the E-PHICH group according to specific information of the UE; and when the E-PHICH resources are configured, the resources occupied by each channel in each E-PHICH group can be indicated, so that after the E-PHICH group where the UE is located and the corresponding E-PHICH are determined, the occupied part of the E-PHICH corresponding to the UE in the E-PHICH resources can be determined. Optionally, if the E-PHICH group is not divided, the eNB may determine the E-PHICH corresponding to the UE according to the specific information of the UE, and then determine the occupied portion of the E-PHICH corresponding to the UE in the E-PHICH resource according to the resource occupied by each E-PHICH in the resource configuration. The UE specific information may be uplink data scheduling information of the UE and/or specific information in an uplink scheduling grant UL _ grant for scheduling uplink data, such as a shift of a demodulation reference signal. For example, the E-PHICH resource may be E-PHICH resources of all UEs in a cell, and the eNB may first determine all E-PHICH groups or E-PHICH channels included in the E-PHICH resource, and then determine a group in which the E-PHICH of a UE is located in all E-PHICH groups or determine an E-PHICH channel used by the UE in all E-PHICH channels according to specific information of the UE, such as uplink data scheduling information and/or specific information (e.g., shift of demodulation reference signal, etc.) in an uplink scheduling grant UL _ grant for scheduling uplink data. Or, the E-PHICH resource itself is the E-PHICH resource configured by the eNB to a certain UE, for example, the eNB is configured to the UE through radio resource control RRC signaling, and then the eNB may determine the E-PHICH channel currently used by the UE in the E-PHICH resource of the UE. For example, the E-PHICH resource configured by the eNB to the UE through RRC signaling includes 8E-PHICH channels, where the 8E-PHICH channels may belong to one E-PHICH group or multiple E-PHICH groups or are independent channels without grouping, and during each uplink scheduling, the eNB may dynamically select one E-PHICH channel from the 8E-PHICH channels as an E-PHICH channel used by the current UE, and the dynamic selection signaling may be carried in a UL _ grant for performing uplink data scheduling.
Step 13: and the eNB maps the information of the E-PHICH corresponding to the UE to the corresponding occupied part in the E-PHICH resource and sends the information to the UE.
Optionally, when mapping the information of the E-PHICH, different mapping manners may be adopted for different information of the E-PHICH, and specific mapping contents may refer to the following embodiment.
In the embodiment, the problem that the E-PHICH resource is configured in the control region in the prior art to cause the configuration possibly cannot be solved by configuring the E-PHICH resource in at least part of the resources occupied by the search space of the E-PDCCH; in addition, since the E-PDCCH is usually located in a data region, the E-PHICH is configured on the resource where the E-PDCCH is located, so that the problem that resource collision of the PHICH is increased, that is, PHICH capacity is insufficient due to introduction of technologies such as Multi-Input Multi-Output (MIMO) and Coordinated multiple points Transmission (CoMP) (especially CoMP scenarios sharing the same cell identifier) can be avoided.
Fig. 2 is a flowchart illustrating another embodiment of a method for sending a control signaling according to the present invention, including:
step 21: and configuring an E-PHICH Resource, wherein the E-PHICH Resource is positioned in at least one Resource Block (RB) or RB pair, or positioned in a time frequency Resource in which at least one symbol in at least one RB or RB pair is positioned.
Referring to fig. 3, fig. 3 shows three RB pairs, where one RB occupies 7 symbols in the time domain, i.e., a half subframe, also called a slot, and occupies 12 subcarriers in the frequency domain; one RB pair occupies 14 symbols in the time domain, i.e., two slots of one subframe, and 12 subcarriers in the frequency domain.
The filled part in fig. 3 represents an E-PHICH group, and it can be seen that, in the present embodiment, the E-PHICH resource is configured on a plurality of RBs as an example, and then the E-PHICH group is distributed on a plurality of RBs after configuration, that is, the E-PHICH resource is located on a plurality of RBs, so that a frequency diversity gain can be obtained.
Optionally, the E-PHICH resource may be configured in the second slot of the RB or RB pair.
Step 22: and determining the occupied part of the E-PHICH corresponding to the UE in the E-PHICH resource.
Step 23: and mapping the information of the E-PHICH corresponding to the UE to the corresponding occupied part in the E-PHICH resource, and sending the information to the UE.
The details of steps 22-23 can be found in steps 11-12.
When the E-PHICH resource is configured in the second time slot, since the second time slot includes a Cell-specific Reference Signal (CRS), a Demodulation Reference Signal (DMRS) and/or a Channel State Information Reference Signal (CSI-RS) that occupy the resource, and the CSI-RS includes a zero-power CSI-RS and a non-zero-power CSI-RS, in order to reasonably occupy the resource, different mapping manners may be adopted for Information of different E-PHICH groups.
For example, referring to fig. 4, the resource conditions occupied by the CRS, DMRS and CSI-RS may be as shown in fig. 4, the E-PHICH needs to use resources other than those occupied, and for more reasonable application of resources, as shown in fig. 4, the mapping manners adopted by the first E-PHICH group and the second E-PHICH group are different, specifically, one is occupied by 4 consecutive Resource Elements (REs), and the other is occupied by 2 consecutive symbols and 2 consecutive subcarriers.
For another example, as shown in fig. 5, the mapping method of the E-PHICH group on the symbol where the CRS is located and the mapping method of the E-PHICH group on the symbol where the DMRS is located are also different.
It can be understood that fig. 4 and 5 are only examples, each E-PHICH group may also adopt other mapping manners, and different E-PHICH groups adopt different mapping manners to ensure that the remaining resources can be effectively occupied. For example, the mapping manner of the second E-PHICH group in fig. 4 may be adopted for the E-PHICH group on the symbol where the zero-power CSI-RS is located, and one E-PHICH group may also be mapped in the adjacent left-side resource of the non-zero-power CSI-RS on the right side in fig. 5.
In the embodiment, frequency diversity gain can be obtained by configuring the E-PHICH resource on a plurality of RB pairs or RBs; in the embodiment, different mapping modes are adopted for the E-PHICH group, so that time-frequency resources can be reasonably utilized, and the resource utilization rate is improved.
Fig. 6 is a flowchart illustrating another embodiment of a method for sending control signaling according to the present invention, including:
step 61: configuring an E-PHICH resource which is located in an area where a symbol in front of an RB or an RB pair occupied by a common search space of an E-PDCCH is located;
the previous embodiment has exemplified the configuration of the E-PHICH resource in the common search space, but since different UEs have different channel conditions, for a UE with good channel conditions, the E-PHICH resource thereof may be configured in a symbol in front of the common search space.
That is, if the symbols occupied by the common search space of the E-PDCCH start from the (n + 1) th symbol, the E-PHICH resource is configured in the time-frequency resource corresponding to the first n symbols of the RB or RB pair in which the common search space is located.
For example, referring to fig. 7, the first search space is a dedicated search space for a UE with poor channel conditions (first UE), and the second search space is a dedicated search space for a UE with better channel conditions (second UE). Since the common search space needs to account for the requirements of UEs with poor channel conditions, the common search space should be the same as the starting symbol of the first search space. Assuming that the starting symbol of the first search space is the 4 th symbol, the starting symbol of the common search space is also the 4 th symbol. The starting symbol of the second search space is the 1 st symbol, and the common search space is started from the 4 th symbol, and the first 3 symbols of the second search space are all idle, so as to avoid resource waste, the E-PHICH of the second UE can be transmitted on the resources corresponding to the first 3 symbols of the RB or RB pair where the common search space is located.
Step 62: determining an occupied part of an E-PHICH corresponding to the UE in the E-PHICH resource;
and step 63: and mapping the information of the E-PHICH corresponding to the UE to the corresponding occupied part in the E-PHICH resource, and sending the information to the UE.
The details of steps 62 to 63 can be found in steps 12 to 13.
In the embodiment, the problem that the E-PHICH resource is configured in the control region in the prior art to cause the configuration possibly cannot be solved by configuring the E-PHICH resource in at least part of the resources occupied by the search space of the E-PDCCH; in addition, because the E-PDCCH is usually located in a data region, the E-PHICH is configured on the resource where the E-PDCCH is located, so that the problem that the resource collision of the PHICH is increased, namely the PHICH capacity is insufficient, due to introduction of technologies such as multi-user MIMO and CoMP (especially CoMP scenes sharing the same cell identifier) can be avoided; in addition, since the symbol in front of the common search space of the E-PDCCH is usually idle, and the present embodiment utilizes the resource where the idle symbol is located, by utilizing the idle resource, resource waste can be avoided.
Fig. 8 is a flowchart illustrating another embodiment of a method for sending control signaling according to the present invention, including:
step 81: configuring E-PHICH resources;
step 82: determining an occupied part of an E-PHICH corresponding to the UE in the E-PHICH resource;
the details of steps 81-82 can be found in the related descriptions of the above embodiments. For example, the E-PHICH resource may be configured on at least a portion of resources where a search space of the E-PDCCH is located, or the E-PHICH resource may be configured on at least one RB or RB pair, or on a time-frequency resource where symbols of at least one of the at least one RB or RB pair are located. Even, the specific content of steps 81-82 can also be implemented by adopting the prior art, for example, configuring the E-PHICH resource on the time-frequency resource where the control region is located. Then, the specific content of the occupied part of the E-PHICH corresponding to the UE in the E-PHICH resource is determined, which can be seen in step 12.
Step 83: scrambling the information of the E-PHICH corresponding to the UE and/or the DMRS used for demodulating the E-PHICH by using a specific identifier, mapping the information of the E-PHICH which is scrambled or not scrambled to a corresponding occupied part in the resource of the E-PHICH, and sending the information of the E-PHICH and/or the DMRS which is scrambled to the UE.
The specific identifier is a preset identifier for randomizing interference, and the specific identifier may specifically be a UE identifier (UE _ ID), a cell identifier (cell _ ID), a transmission point identifier, and the like.
Step 84: and the eNB sends the specific identifier to the UE so that the UE descrambles by adopting the specific identifier.
For example, the specific identifier may be transmitted to the UE through broadcast signaling, Radio Resource Control (RRC) dedicated signaling, or the like.
Different from the above embodiments, the present embodiment employs a specific identifier for scrambling, and the specific identifier may be configured in advance. For example, in a particular heterogeneous network, a macro cell includes multiple micro cells within it, which share the same cell identity. If the E-PHICH of each cell is scrambled by the same cell identifier and the E-PHICH resources of each cell are overlapped, stronger E-PHICH interference between cells or transmission points is brought. Thus, a UE served by each cell (otherwise known as a transmission point) can be configured with a serving cell-specific identity to scramble the E-PHICH, and the E-PHICH interference can be randomized.
In the embodiment, the UE is configured with the specific identifier, so that the E-PHICH interference can be randomized, the inter-cell interference can be reduced, and in addition, the problem of resource collision and increase of the PHICH caused by introduction of technologies such as multi-user MIMO and CoMP (especially in a CoMP scenario sharing the same cell identifier) can also be avoided, and on the other hand, the PHICH capacity can be increased.
Fig. 9 is a flowchart illustrating another embodiment of a method for sending control signaling according to the present invention, including:
step 91: configuring an E-PHICH resource, wherein the E-PHICH resource is positioned in an RB or a part of RB pair where a search space of the E-PDCCH is positioned and is not occupied by the candidate E-PDCCH in the search space of the E-PDCCH;
the search space of the E-PDCCH comprises a search space of the E-PDCCH with at least one aggregation level.
The search space of the E-PDCCH comprises a common search space or a specific search space of the UE;
the search space of the E-PDCCH includes a search space of a centralized E-PDCCH or a search space of a distributed E-PDCCH.
Wherein, the localized E-PDCCH refers to an Enhanced Control Channel Element (E-CCE) that one E-PDCCH occupies continuously, for example, if one RB pair includes 4E-CCEs, the localized E-PDCCH with aggregation level of 4 may occupy the 4E-CCEs of the RB pair; the distributed E-PDCCH refers to a discontinuous E-CCE occupied by one E-PDCCH, and the E-CCE can be dispersed on a plurality of RBs or RB pairs, for example, the distributed E-PDCCH with the aggregation level of 4 can respectively occupy 1E-CCE on the discontinuous 4 RB pairs; in particular, an E-PDCCH like 1E-CCE may also occupy half E-CCE on two non-consecutive RB pairs each.
The following description will be made by taking a search space of a distributed E-PDCCH with an aggregation level of 2 as an example, and similar processing is performed for the case of a common search space and a centralized E-PDCCH search space, and/or E-PDCCHs with other aggregation levels.
For a distributed E-PDCCH with an aggregation level of 2, it is assumed that there are 6 candidate E-PDCCHs, and each candidate E-PDCCH occupies 1E-CCE on each of two RB pairs, which are preferably non-consecutive, to obtain a frequency diversity gain. An example of mapping is that candidate E-PDCCH 1 occupies E-CCE 1 of RB pair i and E-CCE 1 of RB pair j; the candidate E-PDCCH 2 occupies E-CCE2 of RB pair i and E-CCE2 of RB pair j; candidate E-PDCCH 3 occupies E-CCE3 of RB pair i and E-CCE3 of RB pair j; the candidate E-PDCCH 4 occupies E-CCE4 of RB pair i and E-CCE4 of RB pair j; the candidate E-PDCCH 5 occupies E-CCE 1 of RB pair i +1 and E-CCE 1 of RB pair j + 1; candidate E-PDCCH 6 occupies E-CCE2 of RB pair i +1 and E-CCE2 of RB pair j + 1; here i and j assume discontinuity in the frequency domain and 4E-CCEs per RB pair. Based on the mapping mode of the candidate E-PDCCH in the search space, E-CCE3 and E-CCE4 on RB pair i +1 and E-CCE3 and E-CCE4 on RB pair j +1 are not mapped to the candidate E-PDCCH of the UE, if a plurality of UEs share the resources of the distributed mapping, the plurality of UEs will not map the candidate E-PDCCH on the idle E-CCE, therefore, in order to improve the resource utilization rate, the E-PHICH resources can be configured on the idle E-CCE, namely E-CCE3 and E-CCE4 on RB pair i +1 and E-CCE3 and E-CCE4 on RB pair j + 1. Other mapping methods are not limited.
And step 92: determining an occupied part of an E-PHICH corresponding to the UE in the E-PHICH resource;
step 93: and mapping the information of the E-PHICH corresponding to the UE to the corresponding occupied part in the E-PHICH resource, and sending the information to the UE.
The specific contents of steps 92 to 93 in this embodiment can be seen in steps 12 to 13.
In the embodiment, the E-PHICH resource is configured in at least part of the resources occupied by the search space of the E-PDCCH, so that the problem that the E-PHICH resource is configured in the control region in the prior art and cannot be configured can be avoided; in addition, because the E-PDCCH is usually located in a data region, the E-PHICH is configured on the resource where the E-PDCCH is located, so that the problem that the resource collision of the PHICH is increased, namely the PHICH capacity is insufficient, due to introduction of technologies such as multi-user MIMO and CoMP (especially CoMP scenes sharing the same cell identifier) can be avoided; the E-PHICH resource is configured on the resource block RB or part of the resource not occupied by the candidate E-PDCCH in the search space in the RB pair where the search space of the E-PDCCH is located, and the utilization rate of the resource can be improved.
In addition, the present invention may also provide an embodiment of a method for sending a control signaling, including:
firstly, an eNB configures E-PHICH resources;
for example, the E-PHICH resource may be configured on at least a portion of the resource where the search space of the E-PDCCH is located; or, the E-PHICH resource may be configured on at least one RB or RB pair, or configured on a time-frequency resource where a symbol of at least one of the at least one RB or RB pair is located; or configuring the E-PHICH resource on the time frequency resource of the control region. Secondly, the eNB determines the occupied part of the E-PHICH corresponding to the UE in the E-PHICH resource; see step 12 for details of this step.
And thirdly, the eNB maps the information of the E-PHICH corresponding to the UE to the corresponding occupied part in the E-PHICH resource in different mapping modes and sends the information to the UE.
The different mapping modes can include:
the first method is as follows: and when the information of the E-PHICH corresponding to the UE comprises at least two types, mapping different information of the E-PHICH to corresponding occupied parts in the resource of the E-PHICH respectively in different mapping modes. The method specifically comprises the following steps: adopting different mapping modes for the information of the E-PHICH mapped on the time frequency resource where the first symbol is located and the information of the E-PHICH mapped on the time frequency resource where the second symbol is located, wherein the first symbol and the second symbol are symbols where any two different items are as follows: CRS, DMRS, CSI-RS. Or,
the second method comprises the following steps: when the information of the E-PHICH is mapped to the time frequency resource where the first symbol is located, adopting a first mapping mode to map to the corresponding occupied part in the E-PHICH resource, and when the information of the E-PHICH is mapped to the time frequency resource where the second symbol is located, adopting a second mapping mode to map to the corresponding occupied part in the E-PHICH resource, wherein the first mapping mode and the second mapping mode are different, and the first symbol and the second symbol are symbols where any two different items are located: CRS, DMRS, CSI-RS.
Optionally, the eNB may further scramble information of the E-PHICH and/or the DMRS and send the information to the UE when adopting different mapping manners, and the specific manner of scrambling may refer to the embodiment shown in fig. 8.
Fig. 10 is a flowchart illustrating an embodiment of a method for receiving a control signaling according to the present invention, including:
step 101: the UE acquires an E-PHICH resource;
for example, the UE may acquire the E-PHICH resource through broadcast signaling sent by the eNB or RRC dedicated signaling, or may also acquire the E-PHICH resource in an implicit manner, such as a certain location of the E-PHICH in a search space of a certain E-PDCCH, where the location may be fixed or may vary with the search space.
The acquisition of the E-PHICH resource may be configured within at least a portion of the resources occupied by the search space of the E-PDCCH, specifically, for example,
acquiring E-PHICH resources in the time-frequency resources of at least one resource block RB or RB pair occupied by the search space of the E-PDCCH; or,
acquiring E-PHICH resources in time-frequency resources where at least one RB or at least part of symbols in RB pairs occupied by the search space of the E-PDCCH are located; or,
acquiring E-PHICH resources in a common search space of an E-PDCCH, wherein the search space of the E-PDCCH comprises the common search space of the E-PDCCH; or,
acquiring E-PHICH resources in time-frequency resources corresponding to first n symbols of an RB or RB pair occupied by a public search space of an E-PDCCH, wherein the symbols occupied by the public search space of the E-PDCCH start from an n +1 th symbol; or,
and acquiring the E-PHICH resource from the RB or the part of the RB pair where the search space of the E-PDCCH is located and which is not occupied by the candidate E-PDCCH in the search space of the E-PDCCH.
Or, the E-PHICH resource can be configured in the time-frequency resource of at least one RB or RB pair; or, configuring in the time frequency resource where at least one symbol of at least one RB or RB pair is located. The RB or RB pair is not limited to the RB or RB pair in which the search space of the E-PDCCH is located.
The location of the E-PHICH resource may specifically refer to the above embodiments.
Step 102: the UE determines the occupied part of an E-PHICH corresponding to the UE in the E-PHICH resource;
the UE can determine an E-PHICH group in which the UE is located and a specific corresponding E-PHICH in the E-PHICH group according to specific information of the UE; and when the E-PHICH resources are configured, the resources occupied by each channel in each E-PHICH group can be indicated, so that after the E-PHICH group where the UE is located and the corresponding E-PHICH are determined, the occupied part of the E-PHICH corresponding to the UE in the E-PHICH resources can be determined. Optionally, if the E-PHICH group is not divided, the eNB may determine the E-PHICH corresponding to the UE according to the specific information of the UE, and then determine the occupied portion of the E-PHICH corresponding to the UE in the E-PHICH resource according to the resource occupied by each E-PHICH in the resource configuration. The UE specific information may be uplink data scheduling information of the UE and/or specific information in an uplink scheduling grant UL _ grant for scheduling uplink data, such as a shift of a demodulation reference signal.
For example, the E-PHICH resource may be an E-PHICH resource of all UEs in a cell, and a UE may first determine all E-PHICH groups or E-PHICH channels included in the E-PHICH resource, and then determine a group in which the E-PHICH of the UE is located in all E-PHICH groups or determine an E-PHICH channel used by the UE in all E-PHICH channels according to specific information of the UE, such as uplink data scheduling information and/or specific information (e.g., shift of demodulation reference signal, etc.) in an uplink scheduling grant UL _ grant for scheduling uplink data. Or, the E-PHICH resource itself is the E-PHICH resource configured by the eNB to the UE, for example, if the UE obtains the E-PHICH resource by receiving radio resource control RRC signaling sent by the eNB, the UE may determine the E-PHICH channel currently used by the UE in the E-PHICH resource of the UE. For example, the E-PHICH resource configured by the eNB to the UE through RRC signaling includes 8E-PHICH channels, where the 8E-PHICH channels may belong to one E-PHICH group or multiple E-PHICH groups, and during each uplink scheduling, the eNB may dynamically select one E-PHICH channel from the 8E-PHICH channels as an E-PHICH channel used by the current UE, where the dynamic selection signaling may be carried in a UL _ grant for performing uplink data scheduling, and the UE may acquire the E-PHICH channel used currently through signaling notification in the UL _ grant, such as information about shift of a demodulation reference signal.
Step 103: and the UE receives the information of the E-PHICH corresponding to the UE in the corresponding occupied part of the E-PHICH resource.
In the embodiment, the problem that the E-PHICH resource is configured in the control region in the prior art to cause the configuration possibly cannot be solved by configuring the E-PHICH resource in at least part of the resources occupied by the search space of the E-PDCCH; in addition, since the E-PDCCH is usually located in a data region, the E-PHICH is configured on the resource where the E-PDCCH is located, so that the problem that resource collision of the PHICH is increased, that is, the PHICH capacity is insufficient, due to introduction of technologies such as multi-user MIMO and CoMP (especially CoMP scenarios sharing the same cell identifier) can be avoided.
Fig. 11 is a flowchart illustrating another embodiment of a method for receiving control signaling according to the present invention, including:
step 111: the UE acquires an E-PHICH resource;
wherein, the E-PHICH resource can be configured on at least part of the resource where the search space of the E-PDCCH is located; or, the E-PHICH resource may be configured on at least one RB or RB pair, or a resource on which at least one symbol of at least one RB or RB pair is located; or, the E-PHICH resource can be configured on the resource where the control region is located.
Step 112: the UE determines the occupied part of an E-PHICH corresponding to the UE in the E-PHICH resource; see step 102 for details.
Step 113: the UE receives the information of the E-PHICH in the corresponding occupied part of the E-PHICH resource;
step 114: the UE receives a specific identifier sent by the eNB;
the specific identifier is a preset identifier for randomizing interference, and the specific identifier may specifically be a UE identifier (UE _ ID), a cell identifier (cell _ ID), a transmission point identifier, and the like.
Step 115: and the UE carries out descrambling processing on the received information of the E-PHICH and/or the DMRS used for demodulating the E-PHICH by adopting the specific identification.
For the details of the UE side, reference may also be made to the related description in the above embodiments.
In the embodiment, the UE is configured with the specific identifier, so that the E-PHICH interference can be randomized, the inter-cell interference can be reduced, and in addition, the problem of resource collision and increase of the PHICH caused by introduction of technologies such as multi-user MIMO and CoMP (especially in a CoMP scenario sharing the same cell identifier) can also be avoided, and on the other hand, the PHICH capacity can be increased.
Fig. 12 is a schematic structural diagram of a base station according to an embodiment of the present invention, which includes a processing module 121 and a sending module 122; the processing module 121 is configured to configure an E-PHICH resource, and determine an occupied portion of an E-PHICH corresponding to the UE in the E-PHICH resource, where the E-PHICH resource is configured in at least a portion of resources occupied by a search space of an E-PDCCH; the sending module 122 is configured to map information of the E-PHICH corresponding to the UE to a corresponding occupied portion in the E-PHICH resource, and send the information to the UE.
Optionally, the processing module is specifically configured to:
configuring E-PHICH resources in time-frequency resources of at least one Resource Block (RB) or RB pair occupied by the search space of the E-PDCCH; or,
configuring E-PHICH resources in time-frequency resources occupied by at least one RB or partial symbols in the RB pair by the search space of the E-PDCCH; or,
configuring an E-PHICH resource in a common search space of an E-PDCCH, the search space of the E-PDCCH comprising the common search space of the E-PDCCH; or,
if the symbol occupied by the public search space of the E-PDCCH starts from the (n + 1) th symbol, configuring the E-PHICH resource in the time-frequency resource corresponding to the RB occupied by the public search space of the E-PDCCH or the first n symbols of the RB pair; or,
and configuring the E-PHICH resource in the RB or RB pair where the search space of the E-PDCCH is located, wherein the resource is not occupied by the candidate E-PDCCH in the search space of the E-PDCCH.
Optionally, the information of the E-PHICH corresponding to the UE includes at least two types, and the sending module includes:
a mapping unit, configured to map different E-PHICH information to corresponding occupied portions of the E-PHICH resource in different mapping manners;
a sending unit, configured to send information of the E-PHICH mapped to the corresponding occupied portion of the E-PHICH resource to the UE.
Optionally, the mapping unit is specifically configured to:
adopting different mapping modes for the information of the E-PHICH mapped on the time frequency resource where the first symbol is located and the information of the E-PHICH mapped on the time frequency resource where the second symbol is located, wherein the first symbol and the second symbol are symbols where any two different items are as follows: CRS, DMRS, CSI-RS.
The sending module is specifically configured to: scrambling information of an E-PHICH corresponding to the UE and/or a demodulation reference signal (DMRS) for demodulating the E-PHICH by using a specific identifier, and then sending the scrambled information to the UE, and sending the specific identifier to the UE, so that the UE descrambles the received information of the E-PHICH and/or the DMRS for demodulating the E-PHICH by using the specific identifier, wherein the specific identifier is a preset identifier for randomizing interference.
Or, optionally, the processing module is configured to configure an E-PHICH resource, and determine an occupied portion of an E-PHICH corresponding to the UE in the E-PHICH resource, where the E-PHICH resource is located in at least one RB or RB pair, or is located in a time-frequency resource where at least one symbol in the at least one RB or RB pair is located; and the sending module is used for mapping the information of the E-PHICH corresponding to the UE to the corresponding occupied part in the E-PHICH resource and sending the information to the UE. Or, optionally, the processing module is configured to configure an E-PHICH resource, and determine an occupied portion of an E-PHICH corresponding to the UE in the E-PHICH resource; the sending module is used for scrambling the information of the E-PHICH corresponding to the UE and/or the DMRS used for demodulating the E-PHICH by adopting a specific identifier, mapping the information of the E-PHICH which is scrambled or not scrambled to a corresponding occupied part in the resource of the E-PHICH, and sending the information of the E-PHICH and/or the DMRS which is scrambled to the UE. Or, optionally, the processing module is configured to configure an E-PHICH resource, and determine an occupied portion of an E-PHICH corresponding to the UE in the E-PHICH resource; and the sending module is used for mapping the information of the E-PHICH corresponding to the UE to the corresponding occupied part in the E-PHICH resource in different mapping modes and sending the information to the UE.
The embodiment can avoid the problem that the configuration of the E-PHICH resource in the control region in the prior art can not be configured by configuring the E-PHICH resource in at least part of the resources occupied by the search space of the E-PDCCH.
Fig. 13 is a schematic structural diagram of an embodiment of a ue in the present invention, which includes a processing module 131 and a receiving module 132; the processing module 131 is configured to acquire an E-PHICH resource configured in at least a part of resources occupied by a search space of an E-PDCCH, and determine an occupied portion of the E-PHICH corresponding to the UE in the E-PHICH resource; the receiving module 132 is configured to receive information of an E-PHICH corresponding to the UE in a corresponding occupied portion of the E-PHICH resource.
Optionally, the receiving module is specifically configured to:
receiving a specific identifier sent by the eNB, and descrambling the received information of the E-PHICH and/or the DMRS used for demodulating the E-PHICH by adopting the specific identifier, wherein the specific identifier is a preset identifier used for randomizing interference.
Optionally, the processing module is specifically configured to:
acquiring E-PHICH resources in the time-frequency resources of at least one RB or RB pair occupied by the search space of the E-PDCCH; or,
acquiring E-PHICH resources in time-frequency resources where at least one RB or partial symbols in the RB pair occupied by the search space of the E-PDCCH are located; or,
acquiring E-PHICH resources in a common search space of an E-PDCCH, wherein the search space of the E-PDCCH comprises the common search space of the E-PDCCH; or,
acquiring E-PHICH resources in time-frequency resources corresponding to first n symbols of an RB or RB pair occupied by a public search space of an E-PDCCH, wherein the symbols occupied by the public search space of the E-PDCCH start from an n +1 th symbol; or,
and acquiring the E-PHICH resource from the RB or part of the RB pair where the search space of the E-PDCCH is located and which is not occupied by the candidate E-PDCCH in the search space.
The embodiment can avoid the problem that the configuration of the E-PHICH resource in the control region in the prior art can not be configured by configuring the E-PHICH resource in at least part of the resources occupied by the search space of the E-PDCCH.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (18)
1. A method for transmitting control signaling, comprising:
configuring E-PHICH resources of an enhanced physical hybrid field retransmission request indication channel, wherein the E-PHICH resources are configured in at least part of resources occupied by a search space of an enhanced physical downlink control channel (E-PDCCH);
determining an occupied part of an E-PHICH corresponding to User Equipment (UE) in the E-PHICH resource;
and mapping the information of the E-PHICH corresponding to the UE to the corresponding occupied part in the E-PHICH resource, and sending the information to the UE.
2. The method of claim 1, wherein the configuring the E-PHICH resource comprises:
configuring E-PHICH resources in time-frequency resources of at least one Resource Block (RB) or RB pair occupied by the search space of the E-PDCCH; or,
configuring E-PHICH resources in time-frequency resources where at least one symbol in at least one RB or RB pair occupied by the search space of the E-PDCCH is located; or,
configuring an E-PHICH resource in a common search space of an E-PDCCH, the search space of the E-PDCCH comprising the common search space of the E-PDCCH; or,
if the symbol occupied by the public search space of the E-PDCCH starts from the (n + 1) th symbol, configuring the E-PHICH resource in the time-frequency resource corresponding to the RB occupied by the public search space of the E-PDCCH or the first n symbols of the RB pair; or,
and configuring the E-PHICH resource in the RB or RB pair where the search space of the E-PDCCH is located, wherein the resource is not occupied by the candidate E-PDCCH in the search space of the E-PDCCH.
3. The method of claim 1 or 2, wherein the information of the E-PHICH corresponding to the UE comprises at least two types, and wherein mapping the information of the E-PHICH corresponding to the UE to a corresponding occupied part of the E-PHICH resource comprises:
and mapping the information of different E-PHICHs to corresponding occupied parts in the E-PHICH resources respectively in different mapping modes.
4. The method of claim 3, wherein the mapping the information of the different E-PHICHs in different manners comprises:
adopting different mapping modes for the information of the E-PHICH mapped on the time frequency resource where the first symbol is located and the information of the E-PHICH mapped on the time frequency resource where the second symbol is located, wherein the first symbol and the second symbol are symbols where any two different items are as follows: cell-specific reference signals CRS, demodulation reference signals DMRS, channel state information reference signals CSI-RS.
5. The method of claim 1 or 2, wherein the mapping information of the E-PHICH corresponding to the UE to a corresponding occupied portion of the E-PHICH resource comprises:
when the information of the E-PHICH is mapped to the time frequency resource where the first symbol is located, adopting a first mapping mode to map to the corresponding occupied part in the E-PHICH resource, and when the information of the E-PHICH is mapped to the time frequency resource where the second symbol is located, adopting a second mapping mode to map to the corresponding occupied part in the E-PHICH resource, wherein the first mapping mode and the second mapping mode are different, and the first symbol and the second symbol are symbols where any two different items are located: CRS, DMRS, CSI-RS.
6. The method of claim 1,
the sending to the UE comprises: scrambling information of an E-PHICH corresponding to the UE and/or a demodulation reference signal (DMRS) for demodulating the E-PHICH by using a specific identifier, and then sending the scrambled information to the UE, wherein the specific identifier is a preset identifier for randomizing interference;
the method further comprises the following steps: and sending the specific identifier to the UE so that the UE descrambles the received information of the E-PHICH and/or the DMRS for demodulating the E-PHICH by adopting the specific identifier.
7. A method for receiving control signaling, comprising:
acquiring enhanced physical hybrid field retransmission request indication channel (E-PHICH) resources, wherein the E-PHICH resources are configured in at least part of resources occupied by a search space of an enhanced physical downlink control channel (E-PDCCH);
determining an occupied part of an E-PHICH corresponding to User Equipment (UE) in the E-PHICH resource;
and receiving information of the E-PHICH corresponding to the UE in a corresponding occupied part of the E-PHICH resource.
8. The method of claim 7, further comprising:
receiving a specific identifier sent by an evolution base station eNB, wherein the specific identifier is a preset identifier for randomizing interference;
the acquiring information of the E-PHICH corresponding to the UE comprises:
and descrambling the received information of the E-PHICH and/or a demodulation reference signal (DMRS) used for demodulating the E-PHICH by adopting the specific identification.
9. The method of claim 7 or 8, wherein the obtaining E-PHICH resources comprises:
acquiring E-PHICH resources in the time-frequency resources of at least one resource block RB or RB pair occupied by the search space of the E-PDCCH; or,
acquiring E-PHICH resources in time-frequency resources where at least one RB or at least part of symbols in RB pairs occupied by the search space of the E-PDCCH are located; or,
acquiring an E-PHICH resource in a common search space of an enhanced physical downlink control channel (E-PDCCH), wherein the search space of the E-PDCCH comprises the common search space of the E-PDCCH; or,
acquiring E-PHICH resources in time-frequency resources corresponding to first n symbols of an RB or RB pair occupied by a public search space of an E-PDCCH, wherein the symbols occupied by the public search space of the E-PDCCH start from an n +1 th symbol; or,
and acquiring the E-PHICH resource from the RB or the part of the RB pair where the search space of the E-PDCCH is located and which is not occupied by the candidate E-PDCCH in the search space of the E-PDCCH.
10. A base station, comprising:
the processing module is used for configuring enhanced physical hybrid field retransmission request indication channel (E-PHICH) resources and determining the occupied part of an E-PHICH corresponding to User Equipment (UE) in the E-PHICH resources, wherein the E-PHICH resources are configured in at least part of resources occupied by a search space of an enhanced physical downlink control channel (E-PDCCH);
and the sending module is used for mapping the information of the E-PHICH corresponding to the UE to the corresponding occupied part in the E-PHICH resource and sending the information to the UE.
11. The base station of claim 10, wherein the processing module is specifically configured to:
configuring E-PHICH resources in time-frequency resources of at least one Resource Block (RB) or RB pair occupied by the search space of the E-PDCCH; or,
configuring E-PHICH resources in time-frequency resources occupied by at least one RB or partial symbols in the RB pair by the search space of the E-PDCCH; or,
configuring an E-PHICH resource in a common search space of an E-PDCCH, the search space of the E-PDCCH comprising the common search space of the E-PDCCH; or,
if the symbol occupied by the public search space of the E-PDCCH starts from the (n + 1) th symbol, configuring the E-PHICH resource in the time-frequency resource corresponding to the RB occupied by the public search space of the E-PDCCH or the first n symbols of the RB pair; or,
and configuring the E-PHICH resource in the RB or RB pair where the search space of the E-PDCCH is located, wherein the resource is not occupied by the candidate E-PDCCH in the search space of the E-PDCCH.
12. The base station of claim 10 or 11, wherein the information of the E-PHICH corresponding to the UE includes at least two types, and wherein the sending module includes:
a mapping unit, configured to map different E-PHICH information to corresponding occupied portions of the E-PHICH resource in different mapping manners;
a sending unit, configured to send information of the E-PHICH mapped to the corresponding occupied portion of the E-PHICH resource to the UE.
13. The base station of claim 12, wherein the mapping unit is specifically configured to:
adopting different mapping modes for the information of the E-PHICH mapped on the time frequency resource where the first symbol is located and the information of the E-PHICH mapped on the time frequency resource where the second symbol is located, wherein the first symbol and the second symbol are symbols where any two different items are as follows: cell-specific reference signals CRS, demodulation reference signals DMRS, channel state information reference signals CSI-RS.
14. The base station of claim 10 or 11, wherein the sending module is specifically configured to:
when the information of the E-PHICH is mapped to the time frequency resource where the first symbol is located, adopting a first mapping mode to map to the corresponding occupied part in the E-PHICH resource, and when the information of the E-PHICH is mapped to the time frequency resource where the second symbol is located, adopting a second mapping mode to map to the corresponding occupied part in the E-PHICH resource, wherein the first mapping mode and the second mapping mode are different, and the first symbol and the second symbol are symbols where any two different items are located: CRS, DMRS, CSI-RS.
15. The base station of claim 10, wherein the sending module is specifically configured to: scrambling information of an E-PHICH corresponding to the UE and/or a demodulation reference signal (DMRS) for demodulating the E-PHICH by using a specific identifier, and then sending the scrambled information to the UE, and sending the specific identifier to the UE, so that the UE descrambles the received information of the E-PHICH and/or the DMRS for demodulating the E-PHICH by using the specific identifier, wherein the specific identifier is a preset identifier for randomizing interference.
16. A User Equipment (UE), comprising:
the processing module is used for acquiring an enhanced physical hybrid field retransmission request indication channel (E-PHICH) resource and determining an occupied part of an E-PHICH corresponding to the UE in the E-PHICH resource, wherein the E-PHICH resource is configured in at least part of resources occupied by a search space of an enhanced physical downlink control channel (E-PDCCH);
a receiving module, configured to receive information of an E-PHICH corresponding to the UE in a corresponding occupied portion of the E-PHICH resource.
17. The device of claim 16, wherein the receiving module is specifically configured to:
receiving a specific identifier sent by the eNB, and descrambling the received information of the E-PHICH and/or the DMRS used for demodulating the E-PHICH by adopting the specific identifier, wherein the specific identifier is a preset identifier used for randomizing interference.
18. The device according to claim 16 or 17, wherein the processing module is specifically configured to:
acquiring E-PHICH resources in the time-frequency resources of at least one RB or RB pair occupied by the search space of the E-PDCCH; or,
acquiring E-PHICH resources in time-frequency resources where at least one RB or partial symbols in the RB pair occupied by the search space of the E-PDCCH are located; or,
acquiring E-PHICH resources in a common search space of an E-PDCCH, wherein the search space of the E-PDCCH comprises the common search space of the E-PDCCH; or,
acquiring E-PHICH resources in time-frequency resources corresponding to first n symbols of an RB or RB pair occupied by a public search space of an E-PDCCH, wherein the symbols occupied by the public search space of the E-PDCCH start from an n +1 th symbol; or,
and acquiring the E-PHICH resource from the RB or part of the RB pair where the search space of the E-PDCCH is located and which is not occupied by the candidate E-PDCCH in the search space.
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| CN108633052A (en) * | 2017-03-24 | 2018-10-09 | 中兴通讯股份有限公司 | A kind of resource allocation method, device and equipment |
| CN108633052B (en) * | 2017-03-24 | 2023-09-26 | 中兴通讯股份有限公司 | Resource allocation method, device and equipment |
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| WO2013139271A1 (en) | 2013-09-26 |
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