WO2013159701A1 - Signal transmission method, user equipment, network side device - Google Patents

Abstract

Embodiments of the present invention provide a signal transmission method, a user equipment (UE), and a network side device. The method comprises: in the case where a UE sends multiple types of uplink signals to a network side device by using at least two timing advances, the UE sending overlapping information of at least two types of uplink signals in the multiple types of uplink signals to the network side device. According to the embodiments of the present invention, the UE can send overlapping information of multiple types of uplink signals to the network side device, so that the network side device can know whether the multiple types of uplink signals overlap, so as to perform corresponding processing, thereby solving the problem of a high peak-to-average power ratio of the uplink signals.

Description

 Method for transmitting signals, user equipment, and network side equipment

 This application claims priority to Chinese Patent Application No. 201210122894.2, entitled "Method of Transmitting Signals, User Equipment and Network Side Equipment", filed on April 24, 2012, the entire contents of which are incorporated by reference. In this application. Technical field

 The present invention relates to the field of communications, and in particular, to a method of transmitting a signal, a user equipment, and a network side device. Background technique

 In the prior art, in order for the uplink signal sent by the UE to reach the network side device at a predetermined time, the UE needs to send an uplink signal in advance. Here, the time when the UE sends the uplink signal in advance is called a timing advance (ΤΑ). , can also be called the devaluation.

 After receiving the uplink signal from the UE, the network side device may determine, according to the arrival time of the uplink signal, whether the time for receiving the uplink signal sent by the UE is appropriate, and if not, send a command to the UE, instructing the UE to advance or push After a certain time, the uplink signal is sent. After receiving the ΤΑ command of the network side device, the UE adjusts the sending time of the uplink signal according to the ΤΑ command, so that the uplink signal sent by the UE can be timely arrived at the receiver of the network side device, or the deviation of the arrival time is acceptable. Within the scope.

 As technology advances, the UE is allowed to send multiple types of uplink signals, for example, in carrier aggregation (Carrier

Aggregation, CA) uplink signals sent on multiple carriers, or uplink signals sent to different nodes in Coordinated Multiple Point (CoMP) transmission/reception technology, and when transmitting the above multiple types of uplink signals It is possible to use different timing advances. In this way, it is possible to cause uplink signals using different timing advances to overlap each other for a certain period of time. This overlap may result in higher peak-to-average power ratio (PAPR) of the upstream signal, which reduces system efficiency. Summary of the invention

 The embodiment of the present invention provides a method for transmitting a signal, a user equipment, and a network side device, which can enable the network side device to know whether there are overlapping types of uplink signals, thereby solving the problem that the peak-to-average power ratio of the uplink signal is high.

 In one aspect, a method for transmitting a signal is provided, where: when a user equipment UE sends a plurality of types of uplink signals to a network side device by using at least two timing advances, the UE sends the multiple types of uplinks to the network side device. Overlapping information of at least two types of upstream signals in the signal.

 In another aspect, a method for transmitting a signal is provided, including: receiving, by a network side device, a plurality of types of uplink signals sent by a user equipment UE by using at least two timing advances; and receiving, by the network side device, the multiple types of uplink signals from the UE The overlapping information of the at least two types of uplink signals; the network side device determines, according to the overlapping information, that at least two types of uplink signals of the plurality of types of uplink signals overlap in time.

 In another aspect, a user equipment is provided, including: a generating module, configured to generate overlapping information of at least two types of uplink signals in a plurality of types of uplink signals; and a sending module, configured to use at least two time advancements to the network When the side device transmits the above multiple types of uplink signals, the side device transmits the overlap information to the network side device.

 In another aspect, a network side device is provided, including: a receiving module, configured to receive a plurality of types of uplink signals sent by the user equipment UE by using at least two timing advances, and receive at least one of the multiple types of uplink signals from the UE. The overlapping information of the two types of uplink signals, the determining module, determines, according to the overlapping information, that at least two types of uplink signals of the plurality of types of uplink signals overlap in time.

In the technical solution, the UE can send the overlapping information of the multiple types of uplink signals to the network side device, so that the network side device can know whether there are overlapping types of uplink signals, so as to perform corresponding processing, thereby solving the peak of the uplink signal. The problem of high power ratio. DRAWINGS In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in view of the drawings.

 FIG. 1 is a schematic flow chart showing a method of transmitting a signal according to an embodiment of the present invention. Figure 2 is a schematic diagram of the overlap of two types of uplink signals.

 Figure 3 is a schematic diagram of the overlap of two types of upstream signals.

 Figure 4 is a schematic diagram of the overlap of two types of uplink signals.

 Figure 5 is a schematic diagram of the overlap of two types of uplink signals.

 FIG. 6 is a schematic flowchart showing a method of transmitting a signal according to another embodiment of the present invention. Figure Ί is a structural schematic diagram of a user equipment in accordance with an embodiment of the present invention.

 FIG. 8 is a structural schematic diagram of a network side device according to an embodiment of the present invention. detailed description

 BRIEF DESCRIPTION OF THE DRAWINGS The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

It should be understood that the technical solution of the present invention can be applied to various communication systems, for example, a Global System of Mobile Communication (GSM) system, a Code Division Multiple Access (CDMA) system, and a wideband code division. WCDMA (Wandaband Code Division Multiple Access) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A, Long term evolution-Advanced) The system, the Universal Mobile Telecommunication System (UMTS), etc., are not limited in the embodiment of the present invention, but are described. The embodiment of the present invention will be described by taking an LTE network as an example.

 Embodiments of the present invention can be used in wireless networks of different standards. A wireless access network may include different network elements in different systems. For example, the network elements of the radio access network in LTE (Long Term Evolution) and LTE-A (Long Term Evolution-Advanced) include eNB (eNodeB, evolved base station), WCDMA (Wideband Code Division) Multiple Access, Wideband Code Division Multiple Access) The network elements of the radio access network include RNC (Radio Network Controller) and NodeB. Similarly, WiMax ( Worldwide Interoperability for Microwave Access) The other wireless network may also use a solution similar to the embodiment of the present invention, but the related modules in the base station system may be different, and the embodiment of the present invention is not limited. However, for the convenience of description, the following embodiments will use the network side device as the network side device. The example is explained.

 It should be understood that, in the embodiment of the present invention, the user equipment (UE, User Equipment) includes but is not limited to a mobile station (MS, Mobile Station), a mobile terminal (Mobile Terminal), a mobile telephone (Mobile Telephone), a mobile phone (handset). And a portable device, the user equipment can communicate with one or more core networks via a Radio Access Network (RAN), for example, the user equipment can be a mobile phone (or "cellular," , a telephone, a computer having a wireless communication function, etc., and the user equipment can also be a portable, pocket-sized, handheld, computer-integrated or in-vehicle mobile device.

Embodiments in accordance with the present invention can be applied to CA technology. In the CA technology, the UE may send uplink signals on multiple carriers, and the transmission and reception of uplink signals of the respective carriers are relatively independent. When the uplink signals sent by the UE correspond to different timing advances, the uplink signals of the multiple carriers sent by the UE overlap each other. For example, the time advance corresponding to the signal sent by the UE to the carrier 1 is TA1, and the sending The time advance corresponding to the signal of carrier 2 is TA2. If TA1≠TA2, the overlap of signals may occur. The overlap of signals transmitted on different carriers may result in a higher PAPR of the uplink signal. In addition, it is far away from the receiver of the network side device. The power of the UE transmitting the uplink signal on each carrier is usually large. At this time, even if the UE uses the maximum transmission power, the uplink signals of multiple carriers in the overlapping area may not be able to simultaneously have sufficient power. Was sent.

 Embodiments according to the present invention are also applicable to a CoMP transmission technology in which cooperation is introduced between a plurality of network side devices (also referred to as nodes), and information is shared between network side devices (for example, channels) Status information, scheduling information, and data information, etc.) to eliminate inter-cell interference. The UE may send uplink signals to different nodes on the same carrier using different timing advances. For example, the UE sends a first type of uplink signal to node 1 and a second type of uplink signal to node 2. Since the path through which the UE sends uplink signals to these nodes is different, the delay is different, and different time advances are required. Therefore, CoMP technology may also have an overlap of uplink signals.

 The embodiments of the present invention are not limited to the above two application scenarios, and may be applied to various scenarios in which the UE transmits multiple types of uplink signals according to an embodiment of the present invention.

 FIG. 1 is a schematic flow chart showing a method of transmitting a signal according to an embodiment of the present invention. The method of Figure 1 is performed by a user equipment. The method of Figure 1 includes the following.

 In the case that the user equipment UE sends the multiple types of uplink signals to the network side device by using the at least two timing advances, the UE sends the overlapping information of the at least two types of uplink signals in the multiple types of uplink signals to the network side device. .

 For example, the above multiple types of uplink signals may refer to uplink signals transmitted by the UE on different carriers of carrier aggregation. The embodiment of the present invention is not limited thereto. For example, the foregoing multiple types of uplink signals may also refer to uplink signals sent by the UE to different nodes that are coordinated for multi-point transmission on the same carrier.

The overlapping information is used to indicate whether there is overlap in time of the at least two types of uplink signals, for example, the signal of the nth TTI of one type of uplink signal and the signal of the n+1th TTI of another type of uplink signal occur. overlap. For example, in a case where different types of uplink signals are transmitted using at least two timing advances, the UE may report overlapping information of these uplink signals to the network side device. The following takes an example in which the UE sends two uplink signals as an example. If the UE sends the first uplink signal by using the first time advance amount, The second uplink signal is sent by the second time advance, and the UE sends the overlapping information of the first uplink signal and the second uplink signal to the network side device. After receiving the overlapping information, the network side device may determine, according to the overlapping information, whether the uplink signals sent by the UE overlap, and if an overlap occurs, the two types of uplink signals may be avoided by scheduling. In other words, after the network side device acquires the overlapping information, it can be known that if the UE is scheduled to transmit a signal on the carrier 1 immediately after the carrier 2 transmits the signal, an uplink signal overlap occurs, or if After scheduling the UE to send a signal to the node 2, the UE is scheduled to send a signal to the node 1, and an uplink signal overlap occurs. In this way, the network side device can avoid such scheduling, thereby avoiding the overlap of the uplink signals. In addition, the UE may also choose to discard one of the multiple types of uplink signals that may overlap, and the network side device may not receive the uplink signal discarded by the UE.

 The overlapping information may be sent by using special signaling, or may be carried in existing signaling, for example, placing overlapping information of two uplink signals at a fixed position of the signaling, according to an embodiment of the present invention. Not limited.

 The embodiment of the present invention is not limited to the above two types of uplink signals. For example, the overlapping information may include overlapping information of each of the at least two types of uplink signals, or the overlapping information may include The overlapping information of the reference uplink signal and the other types of uplink signals in the at least two types of uplink signals are not described herein.

 For example, the network side device may be a base station (BS), an access point (AP), a remote radio equipment (RRE), a remote radio head (RRH), and a far end. Remote Radio Unit (RRU), relay node, etc. The network side device can know whether there are overlapping types of uplink signals for the corresponding processing, so that the problem that the peak-to-average power ratio of the uplink signal is high can be solved.

According to an embodiment of the invention, the overlapping information comprises two of the above two types of uplink signals. The difference in the amount of time advancement of the line signal.

 For example, the overlapping information may be a difference between the timing advances corresponding to the two types of uplink signals (for example, the difference between the timing advances of each of the two types of uplink signals in the plurality of types of uplink signals or the time of the fixed reference uplink signal). The difference between the advance amount and the time advance of other types of uplink signals). The UE can measure the difference between the timing advances of the two types of uplink signals, and report the difference between the foregoing timing advances to the network side device.

 Figure 2 is a schematic diagram of the overlap of two types of uplink signals. Referring to FIG. 2, for example, the UE may report the difference between the timing advances (eg, TA2-TA1) of the uplink signals sent by the UE on the carrier 1 and the carrier 2 to the network side device, so that the network side device can learn that the UE sends the multiple The overlap of the uplink signals is such that such overlap can be avoided by, for example, scheduling. It should also be understood that TA in Fig. 2 represents a relative value, for example, TA1 represents the interval between time t1 and time t2, and TA2 represents the interval between time t3 and time t4, that is, for receiving the same transmission time interval. (Transmission Time Interval, TTI) The amount of advancement of the transmitted signal. In addition, the difference between the timing advances (for example, TA2-TA1) may also be the difference between the start times of the above-mentioned multiple types of uplink signals in which the UE transmits the same ΤΉ (or the same symbol), that is, t1 + t_TTI-t3, where t_TTI represents one The length of the TTI, that is, the difference in the timing advance is the difference in transmission time for the same ΤΉ. For example, if the timing advance of the signal of the nth ΤΉ of the first type of uplink signals of the two types of uplink signals is different from the timing advance of the signal of the nth ΤΉ of the second type of uplink signals, the first type The signal of the nth ΤΉ of the uplink signal overlaps with the signal of the n+1th ΤΉ of the second type of uplink signal.

 In the case that the difference between the timing advances of the two types of uplink signals exceeds the first preset threshold, the UE sends the overlapping information to the network side device.

 For example, when the difference between the timing advances corresponding to the two types of uplink signals exceeds a certain threshold, the UE reports the overlapping information to the network side device, which can reduce the UE's overlapping information. Amount, thereby reducing the overhead required by the UE to report the above overlapping information.

Optionally, as another embodiment, the overlapping information includes two of the at least two types of uplink signals. An overlapping state between the uplink signals, the overlapping state includes a first overlapping state and a second overlapping state, the first overlapping state indicating that the degree of the overlapping is within a first preset range, and the second intersection The stacked state indicates that the degree of overlap described above is within the second predetermined range.

 For example, the overlapping information may be an overlapping state between the two types of uplink signals (for example, an overlapping state between two or two or an overlapping state between a reference uplink signal and other uplink signals), that is, the above two The degree to which the uplink signals overlap, the degree of overlap described above can be measured by the difference between the timing advances of the plurality of types of uplink signals. The UE determines an overlap state between the plurality of types of uplink signals and reports an overlap state to the network side device. For example, the first overlapping state may be overlapped, and the second overlapping state may be no overlap, or the first overlapping state may be full overlap (Full Overlap), and the second overlapping state may be Partial Overlap.

 For example, in a case where all overlapping states include partial overlap or complete overlap, if the overlap between the multiple types of uplink signals exceeds a certain threshold, the UE may report to the network side device that the uplink signals are partially intersected. Stacked state, otherwise 4 slams completely overlapping state.

 In general, wireless communication systems are designed to allow for a certain amount of overlap, and if the overlap between signals is below a certain threshold, it is generally tolerable, i.e., has little effect on system performance. If the overlap is above the threshold, the network side device is required to avoid this. Figure 3 is a schematic diagram of the overlap of two types of upstream signals. Referring to FIG. 3, there are a certain amount of overlap between two types of uplink signals transmitted by the UE. If the overlap is below a certain threshold TO, it can be tolerated, and the network side device does not need to make any adjustments. If the overlap is greater than TO, the network side device avoids such a situation by scheduling. For example, the two types of uplink signals can be scheduled by at least one 间隔 interval. Specifically, the overlapping state of the i-th uplink signal and the j-th uplink signal mentioned in the present invention is expressed by the formula (1):

If T0<(TAi- TAj)modt _ < t _Tn -TO

If (TAi- TAj)modt _Tn≤ TO or (TAi- TAj)modt _ΤΠ

Where TAi represents the time advance of the i-th uplink signal, and TAj represents the j-th type uplink signal The amount of time advance, mod represents the modulo operation. The threshold TO is usually preset in the UE and the network side device, for example, 20, 30 or 4 (H leap seconds).

 When the range of the difference between the timing advances of the multiple types of uplink signals is large, the range of overlapping information that the UE needs to report is large, so it may be necessary for the UE to report a lot of information, which requires more information between the signals. For example, the UE reports to the network side device whether the second type of uplink signal overlaps with the first type of uplink signal. If yes, the network side device can avoid the uplink signal by adjusting the scheduling of the UE. The overlap between them, if not present, does not require adjustment of the scheduling of the UE to avoid overlap between the upstream signals.

 According to an embodiment of the present invention, the UE sends the number of complete transmission time intervals of the interval between the two types of uplink signals of the same transmission time interval to the network side device.

Figure 4 is a schematic diagram of the overlap of two types of upstream signals. It should be noted that, at the same time, the TTI numbers corresponding to different types of uplink signals may be different. Referring to FIG. 4, the two numbers of the first type uplink signals sent by the UE may be n and n+1, and the UE sends the The two ΤΉ numbers of the second type of uplink signals may be n+5 and n+6, that is, the 编号 of the first type of uplink signal numbered n overlaps with the 编号 of the second type of uplink signal numbered n+6. At this time, the network side device cannot know which bridges of the different types of signals overlap on each other. For example, if the UE only reports the partially overlapping state to the network side device, the network side device may consider the first type of uplink signal. The 编号 numbered n overlaps with the ΤΉ of the second type of uplink signal numbered n+1, but in reality it overlaps with the 编号 of the second type of uplink signal numbered n+6, so the UE also needs Reporting the number of completely overlapping TTIs to the network side device. In other words, the UE also needs to send the number of complete transmission time intervals between the two types of uplink signals of the same transmission time interval to the network side device, For example, in FIG. 4, the number of complete ΤΉ intervals between the two types of uplink signals of the nth TTI is five, and the UE reports that there are 5 ΤΉ full overlaps of the two types of uplink signals, or specifically The formula is expressed as follows. TTI_full = {(TAi-TAj) -[(TAi-TAj)modt_Tn]} / t_Tn (2) where TTI_full represents the number of completely overlapping ΤΉ, TAi represents the time advance of the i-th uplink signal, TAj represents the The time advance of the j-type uplink signal, mod represents the modulo operation.

 According to an embodiment of the present invention, the UE can report the overlapping state of two types of uplink signals by 1 bit. Accordingly, a plurality of bits can be used to respectively indicate the overlapping states of the two uplink signals in the plurality of types of uplink signals. For example, 0 means partial overlap, 1 means complete overlap, or 1 means partial overlap, 0 means complete overlap.

 In 110, the UE sends the overlapping information to the network side device if the overlapping state between the two types of uplink signals becomes a preset overlapping state.

 For example, only when the overlapping state of two types of uplink signals in a plurality of types of uplink signals becomes a certain state, the UE reports to the network side device. For example, if all the overlapping states include overlapping and non-overlapping states, the UE only reports to the network side device when the overlapping states of the two types of signals become overlapping. Optionally, if all the overlapping states include a partial overlap and a complete overlap, the UE only reports to the network side device when the overlapping states of the two types of uplink signals become partially overlapping, so that The amount of overlapping information reported by the UE is reduced, thereby reducing the overhead required for the UE to report overlapping information.

According to an embodiment of the present invention, one of the at least two types of uplink signals is a fixed reference uplink signal, where the reference uplink signal is an uplink signal that is first scheduled by the network side device of the multiple types of uplink signals; or, the reference uplink The signal is an uplink signal having a minimum timing advance among the plurality of types of uplink signals; or the reference uplink signal is an uplink signal having a maximum timing advance among the plurality of types of uplink signals; or the reference uplink signal is in carrier aggregation. An uplink signal sent on a primary component carrier (PCC); or the reference uplink signal is an uplink signal sent to a primary node in the coordinated multipoint transmission; or the reference uplink signal is received from the network side device The information of the reference uplink signal is specified. For example, the first position of the signaling for transmitting the overlapping information may carry the overlapping information of the reference uplink signal and the type of the uplink signal, and the reference uplink signal is placed in the second position of the signaling with another type of uplink. The overlapping information of the signal.

 For example, when the overlapping information is a difference between a timing advance of a fixed reference uplink signal (ie, a fixed timing advance) and a timing advance of other types of uplink signals, the fixed one time advance may be all time. The first amount of advance in the advance amount. For example, the network side device starts scheduling the UE to send only one type of uplink signal, and the uplink signal sets a time advance amount (ie, the first time advance amount), and then gradually configures the UE to send more types of uplink signals according to service requirements. Accordingly, more time advances are set for more types of upstream signals. According to an embodiment of the present invention, the fixed one of the timing advances is designed as the first one of all the timing advances, thus comparing the bills.

 Optionally, the fixed one of the timing advances is the maximum or minimum amount of time advancement among all the timing advances. For example, the fixed time advance amount is set to the time advance amount in which the maximum value of all the time advance amounts is the largest, and the uplink signal with the largest time advance amount corresponds to the first uplink signal sent first, and the uplink signal is not sent first. The problem of stacking (for example, the signal of carrier 2 is transmitted in the nth first in Fig. 2); the UE then uses this timing advance as a reference to report the difference between the timing advance of other signals and the timing advance, so that It is convenient for the network side device to sequentially schedule these signals according to the order of the difference, so as to avoid overlapping problems. For the same reason, the same effect can be achieved by using the time advance with the smallest value among all the timing advances. For example, the signal with the smallest amount of time advance corresponds to the last transmitted signal, and the subsequent transmission of the uplink signal does not cause overlapping problems. The UE uses this timing advance as a reference to report the difference between the timing advance of other signals and the timing advance. The value is such that the network side device can sequentially schedule the signals according to the order of the difference, so as to avoid overlapping problems.

Optionally, the fixed one of the timing advances is a timing advance corresponding to the uplink signal transmitted on the primary component carrier. In CA technology, a UE may send an uplink signal on multiple carriers. These carriers are divided into a primary component carrier and a secondary component carrier (SCO). When the UE accesses the network, the primary component carrier is usually accessed. After the access, the network side device reschedules the UE to other auxiliary members. The uplink signal is sent on the carrier, so the priority of the primary component carrier is usually higher, the probability of use is higher, and the timing advance is relatively more accurate. The time advance corresponding to the primary component carrier is used as a reference to ensure The accuracy of all timing advances, and in the system design, only the UE needs to report the difference between the timing advance corresponding to all the sub-component carriers and the timing advance corresponding to the main component carrier, which reduces the complexity of the system design.

 Optionally, the fixed one of the timing advances may be a timing advance corresponding to the signal sent to the master node. In CoMP technology, a UE may send signals to a plurality of nodes, which are divided into a primary node and a secondary node. When these nodes respectively correspond to different cells, the primary node corresponds to the primary cell, and the secondary node corresponds to the secondary cell. When the UE accesses the network, it usually accesses the master node. After the access, the network side device then schedules the UE to send uplink signals to other nodes. Therefore, the priority of the master node is usually higher. Similarly, since the channel condition of the master node is usually better and the timing advance is usually more accurate, the accuracy of all timing advances can be ensured by using the timing advance corresponding to the master node as a reference, and during system design. The UE only needs to report the difference between the timing advance corresponding to all the secondary nodes and the time advance corresponding to the primary node, which reduces the complexity of the system design.

 Optionally, the UE may receive the reference timing advance information from the network side device, and indicate the information of the fixed one time advance amount. For example, the network side device may send indication information to the UE for instructing the UE to set a certain timing advance (for example, a timing advance corresponding to the second type of uplink signal) as the reference timing advance, which may be more flexible. The indication information may be in the form of dedicated signaling, or may be carried in the existing signaling, for example, by indicating the identifier of the uplink signal or the flag of the fixed location corresponding to the uplink signal in the signaling. The timing advance of the uplink signal is used as a reference timing advance.

Similarly, when the overlapping state included in the overlapping information is an overlapping state of each type of uplink signal in a plurality of types of uplink signals and a fixed type of uplink signal (ie, a reference uplink signal), the reference uplink is used. The signal may be the first type of uplink signal of all types of uplink signals; or the reference uplink signal may be the first type of uplink signal with the earliest transmission time of all uplink signals; or, the reference uplink signal may be the transmission time of all uplink signals. The latest type of uplink signal; or the reference uplink signal may be a signal sent on a primary component carrier of the carrier aggregation; or the reference uplink signal may be a signal sent to a master node of the coordinated multipoint transmission technology. In addition, the network side device may also send information to the UE for indicating the information of the fixed type of uplink signal. For example, the following three types of uplink signals are used as an example. The three types of uplink signals respectively correspond to TA1, TA2, and TA3. To obtain the overlapping information between the three types of uplink signals, the UE does not need to report the corresponding two types of uplink signals. The difference in the amount of time advancement, and only the UE may report the difference between the time advance amount corresponding to the uplink signal of the other type and the time advance amount of the fixed type by referring to the time advance amount of the uplink signal of the first type, for example, The UE only needs to report TA2-TA1 and TA3-TA1, which can save signaling overhead.

 Optionally, as another embodiment, the overlapping information includes a timing advance of the at least two types of uplink signals.

 For example, the overlapping information may be time advancement information corresponding to at least two types of uplink signals. The UE can measure the time advance information corresponding to the multiple types of uplink signals, and report the information to the network side device, that is, the UE can directly report the time advance corresponding to the multiple types of uplink signals to the network side device directly, and the network side according to these The timing advance information is also known to have an overlap between these upstream signals. For example, a timing advance of at least two types of uplink signals may be placed at at least two fixed locations of signaling for transmitting the overlapping information.

 Optionally, in another embodiment, the UE discards one of the at least two types of uplink signals that overlap in the case that the at least two types of uplink signals overlap by a level higher than a second preset threshold.

For example, the difference between the two types of uplink signals is higher than a preset threshold, which may indicate that the difference between the time advances of the two types of uplink signals is higher than the preset threshold, or that the two types of uplink signals are partially overlapping, and It may be that the difference between the advance amounts of the two types of uplink signals adjusted by the UE is higher than the preset threshold. When the overlapping degree of multiple types of uplink signals sent by the UE is higher than a certain threshold, the UE discards the above Part of the signal in the class of uplink signals. After receiving the overlapping information sent by the UE, the network side device determines, according to the overlapping information, whether the UE discards part of the signals of the multiple types of uplink signals, and if discarded, receives only the signal that is not discarded.

 For example, the network side device schedules the UE to send two types of uplink signals, and before the scheduling, the UE reports to the network side device that the time advance amounts of the two types of uplink signals are TA1 and TA2, respectively, if the UE finds that the overlapping of multiple types of uplink signals is higher than If the threshold is TO, the UE discards one of the uplink signals. The network side device can also determine whether the UE discards part of the signal according to the timing advance. If the UE discards part of the signal, the receiver only receives the uplink signal. Discarded signal.

 For example, the UE may report to the network side device whether the two types of uplink signals are in a partially overlapping state. If the UE is in a partially overlapping state, the UE discards part of the signal, and the network side device may also receive according to the UE report. This part of the signal.

 For example, the UE may report to the network side device that the UE adjusts the timing advance of each type of uplink signal by itself, and discards part of the signal when the UE finds that the overlap of the multiple types of uplink signals is higher than the threshold TO. The network side device may also judge whether the two types of uplink signals overlap according to the information reported by the UE, and if the overlap, the part of the signals are not received.

 According to an embodiment of the present invention, the UE overlaps at least two types of uplink signals is higher than a second preset threshold, and a sum of signal powers of overlapping regions of the at least two types of uplink signals is higher than a maximum transmission of the UE. In the case of power, one of the at least two types of uplink signals is discarded.

For example, when the overlapping degree of the multiple types of uplink signals sent by the UE is higher than a certain threshold and the sum of the powers of the overlapping areas is higher than the maximum transmitting power of the UE, the UE may discard part of the signals of the multiple types of uplink signals. . After receiving the overlapping information sent by the UE, the network side device may determine, according to the overlapping information and the power information of the UE maintained by the network side device, whether the UE discards part of the signals in the multiple types of uplink signals, and if discarded, only Receive signals that have not been discarded. One reason for avoiding overlap is that the PAPR may be higher, and in some systems, the PAPR problem is not serious due to the design of the signal, so in order to avoid more signals being discarded, in accordance with an embodiment of the present invention Further limit The UE discards part of the signal only when the overlap of the multiple types of uplink signals transmitted by the UE is above a certain threshold and the sum of the powers in the overlap region is higher than the maximum transmit power of the UE. Since the transmission power of the UE is controlled by the network side device, the network side device also maintains the transmission power of the UE. Therefore, the network side device can also determine whether the UE discards the partial signal.

 According to an embodiment of the present invention, when discarding one of the at least two types of uplink signals that overlap, the UE discards an uplink signal having a lower priority among the at least two types of uplink signals that overlap, wherein the carrier is aggregated. The signal transmitted on the primary component carrier has a higher priority than the signal transmitted on the other component carriers aggregated by the carrier; or the uplink signal sent to the primary node in the coordinated multipoint transmission has a higher priority than that sent to the cooperation The uplink signal of the secondary node in the point transmission; or, the priority of the uplink signal with a larger timing advance is higher than the priority of the uplink signal with a smaller timing advance; or, the priority of the control signaling is higher than the data The priority of the signal; or, the priority of the sounding reference signal is lower than the priority of other signals.

 For example, the UE may determine the discarded partial signal according to the priority of each type of uplink signal. Signals transmitted on the primary component carrier of carrier aggregation have higher priority than signals transmitted on other component carriers. The signal sent to the master node of the coordinated multipoint transmission has a higher priority than the signal sent to the secondary node. A signal having a large amount of time advancement has a higher priority than a signal having a smaller amount of time advancement, and a signal having a larger amount of time advance is transmitted first, and a signal whose timing advance is later transmitted is discarded. For example, in an LTE system, a Physical Uplink Control Channel (PUCCH) carries uplink control signaling, which is higher in importance than a data signal carried on a Physical Uplink Shared CHannel (PUSCH). If the control signaling overlaps with the data signal, the data signal is discarded. The sounding reference signal (SRS) has a lower priority than other signals. For example, in an LTE system, the purpose of the SRS is to facilitate the network side device to acquire the uplink channel condition and not transmit the actual information, so its priority. Lower.

Optionally, in another embodiment, the UE further adjusts the timing advance of the multiple types of uplink signals, where the overlapping information includes the UE adjusting the at least two types of the multiple types of uplink signals. The amount of adjustment of the timing advance of the line signal.

 For example, the overlapping information is an adjustment amount of the timing advance amount of the uplink signals of the UE when the UE does not receive the TA command of the network side device. Figure 5 is a schematic illustration of the overlap of two types of upstream signals. Referring to FIG. 5, the method for adjusting the timing advance when the UE starts to access the communication system is: after receiving the downlink signal sent by the network side device, the UE determines the start time of receiving the downlink signal as the sending time of sending the uplink signal (relative For Yu Wei), that is, the timing advance is 0. The network side device sends a downlink signal to the UE at time t1. After the signal passes the t_d, the UE receives the downlink signal sent by the network side device at time t2, and sends the uplink signal at time t2. For the first transmission of the UE, the UE will also send an uplink signal at the time t2 for ΤΉ (for example, if the UE receives the nth ΤΉ uplink signal at time t2, it transmits the n+1 at t2+t_TTI time. Awkward uplink signal). In this way, the network side device receives the uplink signal sent by the UE at time t3, and t3-t2 is also equal to t_d. According to this, the network side device can judge the time when the UE sends a signal at this time, that is, the time at which the network side device can judge that the UE transmits the signal according to the transmission time t1 and the reception time t3 is (tl + t3)/2.

 After the UE accesses the network, the network side device may send a TA command to the UE to notify the UE to adjust the timing advance amount. For example, the time advance amount is adjusted by using the following formula.

N _T A,new = N _TA ,old + (T _A -31)xl6 (3 )

NTA, old indicates the timing advance before adjustment, NTA, new indicates the adjusted timing advance, and TA indicates the adjustment value carried by the network side device to the TA command sent by the UE, which ranges from 0 to 63. The unit of value is the sampling point Ts, which is fixed at system design, for example, in LTE, Ts = 1/(15000*2048) seconds. Since the UE needs to adjust the timing advance according to the TA command sent by the network side device, the network side device can also know the time when the UE sends the signal through this process. For example, if the network side device and the UE have different clock cycles, even during a certain transmission process, the UE The transmitted uplink signal can arrive at the receiver of the network side device on time, and there may be a difference in the next transmission. Therefore, if the UE is allowed to adjust the time advance amount of the uplink signal according to the time variation of the received downlink signal, The requirement for the accuracy of the clock period of the UE is reduced, and the UE has a certain degree of autonomy, so that the network side device can always prevent the TA command from being sent to the UE. For example, in a scenario in which the UE sends multiple types of uplink signals, since the time advance adjusted by the UE is not known by the network side device, after the UE adjusts the time advance amount, the UE maintained by the network side sends a self-notification. Adjusting the amount of time advancement of each type of uplink signal, so that the network side device can know the time when the UE sends the uplink signal, so that the network side device performs the same operation on each type of uplink signal, and can learn that the UE is transmitting more. Whether overlap occurs when the uplink signal is classed, so that the overlap can be avoided by scheduling. The embodiment of the present invention is not limited thereto. For example, the UE may also report the timing advance of the self-adjusted various types of uplink signals to the network side device according to the embodiment of the present invention, and enable the network side device to learn the UE. The time at which the upstream signal was sent.

 Optionally, in another embodiment, after transmitting the overlapping information to the network side device, the UE further adjusts the multiple types of uplinks within a predetermined range before sending the next overlapping information to the network side device. The timing advance of the signal is such that the self-adjustment does not change the overlapping state of the at least two types of uplink signals.

Since the UE can adjust the timing advance by itself, it is highly probable that the UE reports to the network side device that the overlapping of multiple types of uplink signals is completely overlapped at the nth TTI, but at the n+1th Adjusting the timing advance, the result of the adjustment causes the state of the signal overlap to become a partial overlap. When the signal is partially overlapped when the signal is transmitted on the ΤΉ, part of the signal is discarded, and the network side device receives the UE. The reported information is that the UE is not discarded, which causes the behavior of the UE to be inconsistent with the understanding of the network side device, resulting in erroneous reception of the signal. In order to solve this problem, after the UE reports the overlapping information to the network side device, the UE adjusts the timing advance amount to a certain range before reporting the overlapping information for the next time, thereby avoiding such a problem. Therefore, UE After reporting the overlapping information to the network side device, the UE can only adjust the timing advance within a certain range before reporting the overlapping information for the next time.

 The above predetermined range is characterized in that the UE adjusts the TA within this range without changing the overlapping state of the plurality of types of uplink signals. For example, if the UE reports overlapping information to the network side device, the network side device can determine, according to the information, that the overlapping of the multiple types of information sent by the UE is lower than the threshold, and the UE does not adjust the timing advance after the report. Above this threshold. Or, if the UE reports the overlapping information to the network side device as a complete overlap, the UE does not adjust the timing advance after the report.

The state of the UE changes from a complete overlap to a partial overlap.

 Optionally, as another embodiment, after the UE sends the overlapping information to the network side device, the UE automatically adjusts the foregoing within a predetermined range before receiving the time advance (TA) command sent by the network side device. The timing advance of the uplink signal is such that the self-adjustment does not change the overlapping state of the at least two types of uplink signals.

 After the overlapping information is sent to the network side device, it is possible that the network side device sends a TA command to the UE to instruct the UE to adjust the TA. The priority of the command is usually the highest, so the UE should adjust the TA according to the command, even if After the adjustment, the overlapping state of the at least two types of uplink signals is changed. Since the command comes from the network side device, even if the status changes, the network side device can also know.

The UE sends the TA value used by the at least two types of uplink signals, so that the network side device and the UE can still maintain the same understanding of the overlapping state, and the network side device can avoid the change due to the overlapping state by using the foregoing method in this specification. Impact on upstream transmission.

 Optionally, as another embodiment, the UE further receives, from the network side device, indication information for instructing the UE to send the overlapping information, where the indication information is sending period information of the overlapping information or the indication information. The triggering information is used to send the overlapping information to the network side device, where the UE sends the overlapping information to the network side device according to the indication information.

For example, the UE may receive indication information from the network side, including a period indicating that the UE reports the overlap information. After receiving the indication information, the UE periodically reports the uplink information according to the indication information. The overlapping information of the number. The UE periodically advertises overlapping information, which can be more stable. For example, if the period in which the network side device sends the overlapping information to the UE is 200 ms, the UE reports the overlapping information in a period of 200 ms after receiving the indication information.

 For example, the UE may also receive trigger information from the network side device, where the trigger information may be a flag bit. For example, the network side device may send the flag bit 1 to the UE when the preset condition is met, otherwise send the flag bit 0, and the UE may When the flag is 1, the overlapping information is sent to the network side device. The preset condition may be, for example, that the network side device receives the downlink signal received by the UE and the received power is less than a preset threshold (normally, if the condition is satisfied, the UE is located on the boundary of the cell covered by the network side device). For example, the triggering information may be a threshold for the UE to send the preset condition of the overlapping information (for example, the first preset threshold), so that the UE determines whether to send the overlapping information to the network side device according to the preset threshold.

 According to an embodiment of the present invention, the UE sends the multiple types of uplink signals to the network side device on multiple carriers by using the at least two timing advances.

 For example, multiple types of uplink signals correspond to multiple carriers of carrier aggregation. For example, there are two types of uplink signals, the first type of uplink signal corresponds to carrier 1, and the second type of uplink signal corresponds to carrier 2. The UE may send the first type of uplink signal on the carrier 1 using the first time advance, and the second type of uplink signal on the carrier 2 using the second time advance.

 Optionally, as another embodiment, the UE sends the multiple types of uplink signals to the network side device on the same carrier wave by using the at least two timing advances.

 For example, multiple types of uplink signals correspond to multiple nodes of coordinated multipoint transmission. For example, there are two types of uplink signals, the first type of uplink signal corresponds to node 1, and the second type of uplink signal corresponds to node 2. The UE may send the first type of uplink signal to the node 1 using the first timing advance on the same carrier, and send the second type of uplink signal to the node 2 by using the second timing advance.

 It should be understood that each of the above thresholds may be preset in the UE side and the network side in advance.

FIG. 6 is a schematic flowchart showing a method of transmitting a signal according to another embodiment of the present invention. The method of Figure 6 is performed by a network side device (e.g., a base station). The method of Figure 6 corresponds to the square of Figure 1. Law, no longer repeat here. The method of Figure 6 includes the following.

 610. The network side device receives multiple types of uplink signals sent by the user equipment UE by using at least two time advances.

 620. The network side device receives, from the UE, overlapping information of at least two types of uplink signals in the multiple types of uplink signals.

 630. The network side device determines, according to the overlapping information, that at least two types of uplink signals of the multiple types of uplink signals overlap in time.

 According to the embodiment of the present invention, the overlapping information of the multiple types of uplink signals can be received from the user equipment, so that the network side device can know whether there are overlapping types of uplink signals, so as to perform corresponding processing, thereby being able to solve the peak of the uplink signal. The problem of high power ratio.

 According to an embodiment of the invention, the overlap information comprises a difference in timing advances of two of the at least two types of uplink signals.

 Optionally, in another embodiment, the overlapping information includes an overlapping state between two types of uplink signals in the at least two types of uplink signals, where the overlapping state includes a first overlapping state and a second overlapping state. The first overlapping state indicates that the degree of the overlap is within a first predetermined range, and the second overlapping state indicates that the degree of the overlap is within a second predetermined range.

 Optionally, as another embodiment, the method further includes: receiving, by the network side device, the number of complete transmission time intervals between the two types of uplink signals with the same number of transmission time intervals from the UE.

According to an embodiment of the present invention, one of the at least two types of uplink signals is a fixed reference uplink signal, where the reference uplink signal is an uplink signal that is first scheduled by the network side device of the multiple types of uplink signals; or, the reference uplink The signal is an uplink signal having a minimum timing advance among the plurality of types of uplink signals; or the reference uplink signal is an uplink signal having a maximum timing advance among the plurality of types of uplink signals; or the reference uplink signal is in carrier aggregation. An uplink signal sent on the primary component carrier; or, the reference uplink signal is an uplink signal sent to the primary node in the coordinated multipoint transmission; Alternatively, the reference uplink signal is specified by information of the reference uplink signal sent by the network side device to the UE.

 Optionally, as another embodiment, the overlapping information includes a timing advance of the at least two types of uplink signals.

 Optionally, in another embodiment, the method further includes: determining, by the network side device, that the at least two types of uplink signals overlap according to the overlapping information to be higher than a second preset threshold, thereby determining whether the UE is discarded. There is one of the at least two types of uplink signals that overlap. The network side device receives only the uplink signal that is not discarded if it determines that the UE discards one of the at least two types of uplink signals.

 According to the embodiment of the present invention, the network side device determines, according to the overlapping information, that the degree of overlap of the at least two types of uplink signals is higher than a second preset threshold, and determines the at least the power according to the power of the multiple types of uplink signals reported by the UE. The sum of the signal powers of the overlapping regions of the two types of uplink signals is higher than the maximum transmit power of the UE, thereby determining whether the UE discards the above-mentioned at least two types of uplink signals that overlap, according to an embodiment of the present invention, in determining When the UE discards one of the at least two types of uplink signals that overlap, the network side device determines that the uplink signal with the lower priority among the at least two types of uplink signals that overlaps is the discarded uplink signal. The signal sent on the primary component carrier of the carrier aggregation has a higher priority than the signal sent by the other component carriers aggregated by the carrier; or the uplink signal sent to the primary node in the coordinated multipoint transmission has a higher priority than the sent Giving the uplink signal of the secondary node in the coordinated multipoint transmission; or, the uplink signal having a large timing advance has a higher priority Time priority having a smaller amount of the uplink signal in advance; or the control signaling is higher priority than the priority of the data signals; or, a sounding reference signal priority lower than the priority of other signals.

 Optionally, as another embodiment, the overlapping information indicates that the UE adjusts the adjustment amount of the timing advance of at least two types of uplink signals of the plurality of types of uplink signals by the UE.

Optionally, in another embodiment, the method further includes: the network side device sending, to the UE, indication information for instructing the UE to send the overlapping information, where the indication information is the sending of the overlapping information The sending period information or the indication information is trigger information that meets a preset condition, so that the UE sends the overlapping information to the network side device according to the indication information.

 According to the embodiment of the present invention, the network side device receives the multiple types of uplink signals from the user equipment UE, including: the network side device receiving the multiple types of uplink signals from the UE on multiple carriers.

 Optionally, as another embodiment, the network side device receives the multiple types of uplink signals from the UE on the same carrier.

 Optionally, in another embodiment, the method further includes: the network side device adjusting scheduling of one of the at least two types of uplink signals to prevent overlapping of the at least two types of uplink signals in time.

 A method of transmitting a signal according to an embodiment of the present invention has been described above, and a user equipment and a network side device according to an embodiment of the present invention are described below with reference to FIGS. 7 and 8, respectively.

 Figure Ί is a schematic diagram of a user device 700 in accordance with an embodiment of the present invention. User equipment 700 includes a generation module 710 and a transmission module 720.

 The generating module 710 generates overlapping information of at least two types of uplink signals in the plurality of types of uplink signals. The sending module 720 sends the overlapping information to the network side device if the multiple types of uplink signals are sent to the network side device by using at least two timing advances. The network side device can know whether there are overlapping types of uplink signals for the corresponding processing, so that the problem that the peak-to-average power ratio of the uplink signal is high can be solved.

 According to an embodiment of the invention, the overlap information comprises a difference in timing advances of two of the at least two types of uplink signals.

 According to the embodiment of the present invention, the sending module 720 sends the overlapping information to the network side device if the difference between the timing advances of the two types of uplink signals exceeds the first preset threshold.

Optionally, in another embodiment, the overlapping information includes an overlapping state between two types of uplink signals in the at least two types of uplink signals, where the overlapping state includes a first overlapping state and a second overlapping state. a first overlapping state indicating that the degree of the overlap is within a first predetermined range, and the second overlapping state indicates the The degree of overlap is within the second predetermined range.

 Optionally, as another embodiment, the sending module 720 further sends, to the network side device, the number of complete transmission time intervals between the two types of uplink signals with the same number of transmission time intervals.

 According to the embodiment of the present invention, the transmitting module 720 transmits the overlapping information to the network side device in a case where the overlapping state between the two types of uplink signals becomes a preset overlapping state.

 According to an embodiment of the present invention, one of the at least two types of uplink signals is a fixed reference uplink signal, where the reference uplink signal is an uplink signal that is first scheduled by the network side device of the multiple types of uplink signals; or, the reference uplink The signal is an uplink signal having a minimum timing advance among the plurality of types of uplink signals; or the reference uplink signal is an uplink signal having a maximum timing advance among the plurality of types of uplink signals; or the reference uplink signal is in carrier aggregation. The uplink signal sent by the primary component carrier; or the reference uplink signal is an uplink signal sent to the primary node in the coordinated multipoint transmission; or the reference uplink signal passes the information of the reference uplink signal received from the network side device. To specify.

 Optionally, as another embodiment, the overlapping information includes a timing advance of the at least two types of uplink signals.

 Optionally, in another embodiment, the sending module 720 further discards the basis of the at least two types of uplink signals that overlap in the case where the degree of overlap of the at least two types of uplink signals is higher than the second preset threshold. In the embodiment of the present invention, the sending module 720 overlaps the at least two types of uplink signals by a level higher than the second preset threshold, and the sum of the signal powers of the overlapping areas of the at least two types of uplink signals is higher than the maximum transmission of the UE. In the case of power, one of the at least two types of uplink signals is discarded.

According to the embodiment of the present invention, the sending module 720 discards the uplink signal with lower priority among the at least two types of uplink signals that overlap, wherein the signal transmitted on the primary component carrier of the carrier aggregation has a higher priority than the carrier. The signal transmitted on the other component carriers of the aggregation; or the uplink signal sent to the primary node in the coordinated multipoint transmission has a higher priority than the secondary node sent to the coordinated multipoint transmission Uplink signal; or, the priority of the uplink signal having a larger timing advance is higher than the priority of the uplink signal having a smaller timing advance; or the priority of the control signaling is higher than the priority of the data signal; or The sounding reference signal has a lower priority than the other signals.

 The user equipment 700 further includes: an adjustment module 730, configured to adjust, by itself, a timing advance of the multiple types of uplink signals, where the overlapping information indicates that the timing advance adjustment of at least two types of uplink signals in the multiple types of uplink signals is adjusted by itself. the amount.

 The user equipment 700 further includes: an adjustment module 730, configured to: after transmitting the overlapping information to the network side device, adjust the multiple types of uplink signals within a predetermined range before transmitting the next overlapping information to the network side device. The timing advancement is such that the self-adjustment does not change the overlapping state of the at least two types of uplink signals.

 Optionally, as another embodiment, the user equipment 700 further includes: an adjustment module 730, configured to: after sending the overlapping information to the network side device, before receiving the TA command sent by the network side device, The timing advance of the plurality of types of uplink signals is adjusted within a predetermined range, so that the self-adjustment does not change the overlapping state of the at least two types of uplink signals.

 The user equipment 700 further includes: a receiving module 740, configured to receive, from the network side device, indication information for instructing the UE to send the overlapping information, where the indication information is sending period information of the overlapping information or the indication information is The triggering information that meets the preset condition, where the sending module 720 sends the overlapping information to the network side device according to the indication information.

 According to an embodiment of the present invention, the transmitting module 720 transmits the plurality of types of uplink signals to the network side device on the plurality of carriers by using the at least two timing advances.

 Optionally, as another embodiment, the sending module 720 sends the multiple types of uplink signals to the network side device on the same carrier by using the at least two timing advances.

For the operations and functions of the various units of the user equipment 700, reference may be made to the embodiment of the method of FIG. 1. To avoid repetition, details are not described herein again. The device 800 includes a receiving module 810 and a determining module 820.

 The receiving module 810 is configured to receive a plurality of types of uplink signals sent by the user equipment UE by using at least two timing advances, and receive, from the UE, overlapping information of at least two types of uplink signals of the multiple types of uplink signals. The determining module 820 determines, according to the overlapping information, that at least two types of uplink signals of the plurality of types of uplink signals overlap in time.

 According to the embodiment of the present invention, the overlapping information of the multiple types of uplink signals can be received from the UE, so that the network side device can know whether there are overlapping types of uplink signals, so as to perform corresponding processing, thereby being able to solve the peak-to-average power of the uplink signal. Higher than the problem.

 According to an embodiment of the invention, the overlap information comprises a difference in timing advances of two of the at least two types of uplink signals.

 Optionally, in another embodiment, the overlapping information includes an overlapping state between two types of uplink signals in the at least two types of uplink signals, where the overlapping state includes a first overlapping state and a second overlapping state. The first overlapping state indicates that the degree of the overlap is within a first predetermined range, and the second overlapping state indicates that the degree of the overlap is within a second predetermined range.

 Optionally, as another embodiment, the receiving module 810 further receives, from the UE, the number of complete transmission time intervals between the two types of uplink signals of the same number of transmission time intervals.

 According to an embodiment of the present invention, one of the at least two types of uplink signals is a fixed reference uplink signal, where the reference uplink signal is an uplink signal that is first scheduled by the network side device of the multiple types of uplink signals; or, the reference uplink The signal is an uplink signal having a minimum timing advance among the plurality of types of uplink signals; or the reference uplink signal is an uplink signal having a maximum timing advance among the plurality of types of uplink signals; or the reference uplink signal is in carrier aggregation. The uplink signal sent on the primary component carrier; or the reference uplink signal is an uplink signal sent to the primary node in the coordinated multipoint transmission; or the reference uplink signal is specified by the information of the reference uplink signal sent to the UE .

Optionally, as another embodiment, the overlapping information includes a timing advance of the at least two types of uplink signals. Optionally, in another embodiment, the determining module 820 is further configured to determine, according to the overlapping information, that the at least two types of uplink signals overlap to be higher than a second preset threshold, thereby determining whether the UE discards the presence of the intersection. One of the at least two types of uplink signals that are stacked, wherein the receiving module 810 receives only the uplink signal that is not discarded if it determines that the UE discards one of the at least two types of uplink signals.

 According to the embodiment of the present invention, the determining module 820 determines, according to the overlapping information, that the degree of overlapping of the at least two types of uplink signals is higher than a second preset threshold and determines a sum of signal powers of overlapping regions of the at least two types of uplink signals. Higher than the maximum transmit power of the UE, thereby determining whether the UE discards one of the at least two types of uplink signals that overlap.

 According to an embodiment of the present invention, the determining module 820 determines that the lower priority uplink signal of the at least two types of uplink signals that are overlapped is the discarded uplink signal, where the signal is sent on the primary component carrier of the carrier aggregation. The priority is higher than the signal sent by the other component carriers of the carrier aggregation; or the uplink signal sent to the master node in the coordinated multipoint transmission has a higher priority than the uplink sent to the secondary node in the coordinated multipoint transmission Signal; or, the uplink signal having a larger timing advance has a higher priority than the uplink signal having a smaller timing advance; or the control signaling has a higher priority than the data signal; or, detecting The priority of the reference signal is lower than the priority of the other signals.

 Optionally, as another embodiment, the overlapping information indicates that the UE adjusts the adjustment amount of the timing advance of at least two types of uplink signals of the plurality of types of uplink signals by the UE.

 Optionally, as another embodiment, the network side device 800 further includes: a sending module 830, configured to send, to the UE, indication information used to indicate that the UE sends the overlapping information, where the indication information is the overlapping information The sending period information or the indication information is trigger information that meets a preset condition, so that the UE sends the overlapping information to the network side device according to the indication information.

 According to an embodiment of the invention, the receiving module 810 receives the plurality of types of uplink signals from the UE on a plurality of carriers.

Optionally, as another embodiment, the receiving module 810 receives the multiple types of uplink signals from the UE on the same carrier. Optionally, as another embodiment, the network side device 800 further includes: a scheduling module 840, configured to adjust scheduling of one of the at least two types of uplink signals to prevent overlapping of the at least two types of uplink signals in time. .

 For the operation and function of each unit of the network side device 800, reference may be made to the embodiment of the method of FIG. 6. To avoid repetition, details are not described herein again.

 According to the embodiment of the present invention, the network side device can be informed of the overlapping of the uplink signals sent by the UE, so that the network side device can avoid the overlapping of the uplink signals of the multiple carriers in a scheduling manner. In addition, the signal processing method in the case of overlapping can be pre-defined according to the embodiment of the present invention to ensure that the sending behavior of the UE side can be matched with the receiving behavior of the network side device, thereby avoiding erroneous reception of the signal.

 Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

 A person skilled in the art can clearly understand that, for the convenience and the cleaning of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding processes in the foregoing method embodiments, and details are not described herein again.

In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form. , , , , , , , , . The components displayed by the , , , , , and units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

 In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

 The functions, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

 The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of protection of the invention should be determined by the scope of the claims.

Claims

Rights request

 A method for transmitting a signal, comprising:

 When the user equipment UE sends the multi-type uplink signal to the network side device by using the at least two timing advances, the UE sends an overlap of at least two types of uplink signals in the multiple types of uplink signals to the network side device. information.

 2. The method according to claim 1, wherein the overlap information comprises a difference in timing advances of two types of uplink signals of the at least two types of uplink signals.

 The method according to claim 2, wherein the transmitting, by the UE, the overlapping information of the at least two types of uplink signals in the multiple types of uplink signals to the network side device, including:

 In a case where the difference between the timing advances of the two types of uplink signals exceeds a first preset threshold,

The UE sends the overlapping information to the network side device.

 The method according to claim 1, wherein the overlapping information includes an overlapping state between two types of uplink signals of the at least two types of uplink signals, where the overlapping state includes a first intersection a stacked state indicating a degree of the overlap being within a first predetermined range, the second overlapping state indicating a degree of the overlapping being located in a second pre-predetermined state Within the scope of the setting.

 The method according to claim 4, further comprising: the UE transmitting, to the network side device, a complete transmission time interval of the interval between the two types of uplink signals with the same transmission time interval number number.

 The method according to claim 4 or 5, wherein the UE sends the overlapping information of the at least two types of uplink signals in the multiple types of uplink signals to the network side device, including: the UE In a case where the overlapping state between the two types of uplink signals becomes a preset overlapping state, the overlapping information is transmitted to the network side device.

 The method according to any one of claims 1 to 6, wherein one of the at least two types of uplink signals is a fixed reference uplink signal,

The reference uplink signal is firstly adjusted by the network side device in the multiple types of uplink signals. Upward signal

 Or,

 The reference uplink signal is an uplink signal having a minimum amount of time advancement among the plurality of types of uplink signals;

 Or,

 The reference uplink signal is an uplink signal having a maximum timing advance among the plurality of types of uplink signals;

 Or,

 The reference uplink signal is an uplink signal sent on a primary component carrier of carrier aggregation; or

 The reference uplink signal is an uplink signal sent to a master node in coordinated multipoint transmission; or

 The reference uplink signal is specified by information of the reference uplink signal received from the network side device.

 8. The method according to claim 1, wherein the overlapping information comprises a timing advance of the at least two types of uplink signals.

 The method according to any one of claims 1 to 8, further comprising: the UE in a case where the degree of overlapping of the at least two types of uplink signals is higher than a second preset threshold And discarding one of the at least two types of uplink signals that overlap.

 The method according to claim 9, wherein the UE overlaps at least two types of uplink signals is higher than the second preset threshold and the at least two types of uplink signals overlap. If the sum of the signal powers of the regions is higher than the maximum transmit power of the UE, one of the at least two types of uplink signals is discarded.

The method according to claim 9 or 10, wherein the discarding one of the at least two types of uplink signals that overlap exists includes: The UE discards an uplink signal having a lower priority among the at least two types of uplink signals that overlap.

 The signal sent on the primary component carrier of the carrier aggregation has a higher priority than the signal sent by the other component carriers of the carrier aggregation;

 Or,

 The uplink signal sent to the master node in the coordinated multipoint transmission has a higher priority than the uplink signal sent to the secondary node in the cooperative multipoint transmission;

 Or,

 The uplink signal having a larger timing advance has a higher priority than the uplink signal having a smaller timing advance;

 Or,

 The priority of control signaling is higher than the priority of the data signal;

 Or,

 The sounding reference signal has a lower priority than the other signals.

 12. The method according to claim 1, further comprising:

 The UE adjusts the timing advance of the multiple types of uplink signals by itself,

 The overlapping information includes an adjustment amount of a timing advance of the at least two uplink signals of the plurality of types of uplink signals by the UE.

 The method according to any one of claims 4 to 6, further comprising: after the transmitting, by the UE, the overlapping information to the network side device, to the network side device Adjusting the timing advance of the plurality of types of uplink signals within a predetermined range before transmitting the next overlapping information or before receiving the time advance command sent by the network side device, so that the self-adjustment does not change the at least The overlapping state of the two types of upstream signals.

The method according to any one of claims 1 to 13, further comprising: the UE receiving, from the network side device, a finger indicating that the UE sends the overlapping information The information indicating that the indication information is the transmission period information of the overlapping information or the indication information is trigger information that meets a preset condition,

 The sending, by the UE, the overlapping information to the network side device includes:

 Sending, by the UE, the overlapping information to the network side device according to the indication information.

 The method according to any one of claims 1 to 14, wherein the user equipment UE sends a plurality of types of uplink signals to the network side device by using at least two timing advances, including: using the UE Transmitting, by the at least two timing advances, the plurality of types of uplink signals to the network side device on multiple carriers;

 Or,

 And transmitting, by the UE, the multiple types of uplink signals to the network side device on the same carrier by using the at least two timing advances.

 16. A method of transmitting a signal, comprising:

 The network side device receives multiple types of uplink signals sent by the user equipment UE by using at least two time advances;

 The network side device receives, from the UE, overlapping information of at least two types of uplink signals in the multiple types of uplink signals;

 The network side device determines, according to the overlapping information, that at least two types of uplink signals of the multiple types of uplink signals overlap in time.

 The method according to claim 16, wherein the overlapping information comprises a difference in timing advance amounts of two types of uplink signals of the at least two types of uplink signals.

 The method according to claim 16, wherein the overlapping information includes an overlapping state between two types of uplink signals of the at least two types of uplink signals, where the overlapping state includes a first intersection a stacked state indicating a degree of the overlap being within a first predetermined range, the second overlapping state indicating a degree of the overlapping being located in a second pre-predetermined state Within the scope of the setting.

The method according to claim 18, wherein the method further comprises: the network The network side device receives, from the UE, the number of complete transmission time intervals between the two types of uplink signals of the same number of transmission time intervals.

 The method according to any one of claims 16 to 19, wherein one of the at least two types of uplink signals is a fixed reference uplink signal,

 The reference uplink signal is an uplink signal that is first scheduled by the network side device of the multiple types of uplink signals;

 Or,

 The reference uplink signal is an uplink signal having a minimum timing advance among the plurality of types of uplink signals, or

 The reference uplink signal is an uplink signal having a maximum timing advance among the plurality of types of uplink signals, or

 The reference uplink signal is an uplink signal sent on a primary component carrier of carrier aggregation; or

 The reference uplink signal is an uplink signal sent to a master node in coordinated multipoint transmission; or

 The reference uplink signal is specified by information of the reference uplink signal sent by the network side device to the UE.

 The method according to claim 16, wherein the overlapping information comprises a timing advance of the at least two types of uplink signals.

The method according to any one of claims 16 to 21, further comprising: determining, by the network side device, that the at least two types of uplink signals overlap according to the overlapping information a second preset threshold, so as to determine whether the UE discards one of the at least two types of uplink signals that overlap; , , '',; , ' , , , , , ' — ³⁴ — , , ' - I , , , , , , , , only receive the upstream signal that has not been discarded.

 The method according to claim 22, wherein the network side device determines, according to the overlapping information, that the at least two types of uplink signals overlap by a degree higher than the second preset threshold and according to the The power of the multi-type uplink signal reported by the UE determines that the sum of signal powers of the overlapping areas of the at least two types of uplink signals is higher than the maximum transmit power of the UE, thereby determining whether the UE discards the presence of the intersection One of the at least two types of uplink signals stacked.

 The method according to claim 22 or 23, wherein the determining whether the UE discards one of the at least two types of uplink signals that overlap exists includes:

 Determining, by the network side device, that the uplink signal with a lower priority among the at least two types of uplink signals that overlaps is a discarded uplink signal,

 The signal sent on the primary component carrier of the carrier aggregation has a higher priority than the signal sent by the other component carriers of the carrier aggregation;

 Or,

 The uplink signal sent to the master node in the coordinated multipoint transmission has a higher priority than the uplink signal sent to the secondary node in the cooperative multipoint transmission;

 Or,

 The uplink signal having a larger timing advance has a higher priority than the uplink signal having a smaller timing advance;

 Or,

 The priority of control signaling is higher than the priority of the data signal;

 Or,

 The sounding reference signal has a lower priority than the other signals.

The method according to claim 16, wherein the overlapping information indicates that the UE adjusts the timing advance of at least two types of uplink signals of the plurality of types of uplink signals by the UE. the amount.

 The method according to any one of claims 16 to 25, further comprising: the network side device transmitting, to the UE, indication information for instructing the UE to send the overlapping information And the indication information is the transmission period information of the overlap information or the indication information is trigger information that meets a preset condition, so that the UE sends the overlap to the network side device according to the indication information. information.

 The method according to any one of claims 16 to 26, wherein the network side device receives a plurality of types of uplink signals from the user equipment UE, including:

 The network side device receives the multiple types of uplink signals from the UE on multiple carriers; or

 The network side device receives the multiple types of uplink signals from the UE on the same carrier.

 The method according to any one of claims 16 to 27, further comprising: the network side device adjusting scheduling of one of the at least two types of uplink signals to avoid the at least two Class-like uplink signals overlap in time.

 29. A user equipment, comprising:

 a generating module, configured to generate overlapping information of at least two types of uplink signals in the plurality of types of uplink signals; and a sending module, configured to send, when using the at least two timing advances, the multiple types of uplink signals to the network side device, Sending the overlapping information to the network side device.

 The method according to claim 29, wherein the overlapping information comprises a difference in timing advances of two types of uplink signals of the at least two types of uplink signals.

 The user equipment according to claim 30, wherein the sending module sends the difference between the time advance amounts of the two types of uplink signals to the network side device if the difference between the time advance amounts exceeds the first preset threshold. The overlapping information.

The user equipment according to claim 29, wherein the overlapping information includes an overlapping state between two types of uplink signals of the at least two types of uplink signals, where the overlapping state includes a first overlap state indicating a degree of the overlap being within a first predetermined range, and a second overlap state indicating a degree of the overlap being located Within the second preset range.

 33. The user equipment according to claim 32, wherein the sending module further has a number of complete transmission time intervals.

 The user equipment according to claim 32 or 33, wherein the sending module sends the overlapping state between the two types of uplink signals to the network side device if the overlapping state becomes a preset overlapping state. The overlapping information.

 The user equipment according to any one of claims 29 to 34, wherein one of the at least two types of uplink signals is a fixed reference uplink signal, wherein the reference uplink signal is the plurality of types. An uplink signal that is first scheduled by the network side device in the uplink signal; or, the reference uplink signal is an uplink signal that has a minimum timing advance in the multiple types of uplink signals; or, the reference uplink signal is the multiple An uplink signal having a maximum time advance amount in the uplink-like signal; or the reference uplink signal is an uplink signal sent on a primary component carrier of the carrier aggregation; or the reference uplink signal is sent to the coordinated multi-point transmission The uplink signal of the master node; or, the reference uplink signal is specified by information of the reference uplink signal received from the network side device.

 36. The user equipment according to claim 29, wherein the overlapping information comprises a timing advance of the at least two types of uplink signals.

 The user equipment according to any one of claims 29 to 36, wherein the sending module further determines that the degree of overlap of the at least two types of uplink signals is higher than a second preset threshold. And discarding one of the at least two types of uplink signals that overlap.

The user equipment according to claim 37, wherein the sending module overlaps the at least two types of uplink signals by a level higher than the second preset threshold and the at least two types of uplink signals If the sum of the signal powers of the overlapping regions is higher than the maximum transmit power of the UE, the lost One of the at least two types of uplink signals is discarded.

 The user equipment according to claim 37 or claim 38, wherein the transmitting module discards an uplink signal having a lower priority among the at least two types of uplink signals that overlap, wherein the carrier in the carrier aggregation The signal sent on the component carrier has a higher priority than the signal transmitted on the other component carriers of the carrier aggregation; or the uplink signal sent to the master node in the coordinated multipoint transmission has a higher priority than the coordinated message sent to the cooperation The uplink signal of the secondary node in the point transmission; or, the priority of the uplink signal with a larger timing advance is higher than the priority of the uplink signal with a smaller timing advance; or, the priority of the control signaling is higher than the data The priority of the signal; or, the priority of the sounding reference signal is lower than the priority of other signals.

 40. The user equipment according to claim 29, further comprising:

 And an adjustment module, configured to adjust a timing advance of the plurality of types of uplink signals, wherein the overlapping information indicates that the adjustment amount of the timing advance of at least two types of uplink signals in the multiple types of uplink signals is adjusted by itself.

 The user equipment according to claim 32 or 33, further comprising: an adjustment module, configured to send the information to the network side device after transmitting the overlapping information to the network side device Adjusting the timing advance of the plurality of types of uplink signals within a predetermined range before the overlapping information or before receiving the time advance command sent by the network side device, so that the self-adjustment does not change the at least two types The overlapping state of the upstream signals.

 The user equipment according to any one of claims 29 to 41, further comprising:

 a receiving module, configured to receive, from the network side device, indication information for instructing the UE to send the overlapping information, where the indication information is that the sending period information of the overlapping information or the indication information is satisfied The triggering information of the preset condition, wherein the sending module sends the overlapping information to the network side device according to the indication information.

43. The user equipment according to any one of claims 29 to 42, characterized in that The transmitting module sends the multiple types of uplink signals to the network side device on the multiple carriers by using the at least two timing advances; or, the sending module uses the at least two timing advances on the same carrier. Transmitting the plurality of types of uplink signals to the network side device.

 44. A network side device, comprising:

 a receiving module, configured to receive a plurality of types of uplink signals sent by the user equipment UE by using at least two timing advances, and receive, by the UE, overlapping information of at least two types of uplink signals of the multiple types of uplink signals;

 The determining module determines, according to the overlapping information, that at least two types of uplink signals of the plurality of types of uplink signals overlap in time.

 The network side device according to claim 44, wherein the overlap information includes a difference in timing advance amounts of two types of uplink signals of the at least two types of uplink signals.

 The network side device according to claim 44, wherein the overlapping information includes an overlapping state between two types of uplink signals of the at least two types of uplink signals, where the overlapping state includes An overlap state indicating a degree of the overlap being within a first predetermined range, and a second overlap state indicating a degree of the overlap being at a Within the scope of two presets.

 The network side device according to claim 46, wherein the receiving module further receives, from the UE, the number of complete transmission time intervals between the two types of uplink signals with the same number of transmission time intervals. .

The network side device according to any one of claims 44 to 47, wherein one of the at least two types of uplink signals is a fixed reference uplink signal, wherein the reference uplink signal is the plurality of An uplink signal that is first scheduled by the network side device in the uplink-like signal; or, the reference uplink signal is an uplink signal that has a minimum timing advance in the multiple types of uplink signals; or, the reference uplink signal is the An uplink signal having a maximum timing advance in the plurality of types of uplink signals; or, the reference uplink signal is an uplink signal sent on a primary component carrier of the carrier aggregation; or The reference uplink signal is an uplink signal transmitted to the master node in the coordinated multipoint transmission; or the reference uplink signal is specified by information of the reference uplink signal transmitted to the UE.

 49. The network side device according to claim 44, wherein the overlapping information includes a timing advance of the at least two types of uplink signals.

 The network side device according to any one of claims 44 to 49, wherein the determining module is further configured to determine, according to the overlapping information, that the at least two types of uplink signals overlap. At a second preset threshold, to determine whether the UE discards one of the at least two types of uplink signals that overlap, wherein the receiving module determines that the UE discards the at least two types of uplink signals In one case, only the upstream signal that has not been discarded is received.

 The network side device according to claim 50, wherein the determining module determines, according to the overlapping information, that the degree of overlap of the at least two types of uplink signals is higher than the second preset threshold and determines The sum of the signal powers of the overlapping regions of the at least two types of uplink signals is higher than the maximum transmit power of the UE, thereby determining whether the UE discards one of the at least two types of uplink signals that overlap.

 The network side device according to claim 50 or 51, wherein the determining module determines that an uplink signal having a lower priority among the at least two types of uplink signals that overlaps is the discarded An uplink signal, wherein a signal transmitted on a primary component carrier of carrier aggregation has a higher priority than a signal transmitted on another component carrier of the carrier aggregation; or a priority of an uplink signal transmitted to a primary node in coordinated multipoint transmission The level is higher than the uplink signal sent to the secondary node in the coordinated multipoint transmission; or, the priority of the uplink signal with a larger timing advance is higher than the priority of the uplink signal with a smaller timing advance; or The priority of the control signaling is higher than the priority of the data signal; or, the priority of the sounding reference signal is lower than the priority of the other signals.

The network side device according to claim 44, wherein the overlapping information indicates that the UE adjusts an adjustment amount of a timing advance amount of at least two types of uplink signals of the plurality of types of uplink signals by the UE.

The network side device according to any one of claims 44 to 53, further comprising:

 a sending module, configured to send, to the UE, indication information for instructing the UE to send the overlapping information, where the indication information is a sending period information of the overlapping information or the indication information is a preset The triggering information of the condition, so that the UE sends the overlapping information to the network side device according to the indication information.

 The network side device according to any one of claims 44 to 54, wherein the receiving module receives the multiple types of uplink signals from the UE on multiple carriers; or, the receiving The module receives the plurality of types of uplink signals from the UE on the same carrier.

 The network side device according to any one of claims 44 to 55, further comprising: a scheduling module, configured to adjust scheduling of one of the at least two types of uplink signals, to avoid the At least two types of upstream signals overlap in time.