Patent Application
20160337884
The present disclosure relates to the field of communications technologies and, in particular, to a method for transmitting an absolute grant (AG) value and a user equipment (UE).
In a conventional wideband code division multiple access (WCDMA) system, a network side device delivers a scheduling grant value to achieve an objective of scheduling uplink transmit power of a user, and a physical meaning of the scheduling grant value is an enhanced-dedicated physical data channel (E-DPDCH) to dedicated physical control channel (DPCCH) transmit power offset. The scheduling grant value may be classified into two types: an AG value and a relative grant (RG) value, where an enhanced-absolute grant channel (E-AGCH) is used to carry the AG value, and an enhanced-relative grant channel is used to carry the RG value.
In the prior art, a network side device may deliver an AG of a UE on a conventional E-AGCH or a new E-AGCH at a moment. Each UE simultaneously listens on the foregoing two channels. The UE sends data to the network side device according to the AG on the channel when detecting an AG that belongs to the UE itself on the conventional E-AGCH or the new E-AGCH, and the UE stops data transmission that is performed currently when detecting an AG of another UE on the new E-AGCH.
However, in the prior art, the network side device stops transmission of all UEs after sending an AG to a UE1 through the new E-AGCH, and then starts data transmission by sending an AG to another UE2 at a next moment, which may cause data transmission interruption of the UE2.
The present disclosure provides a method for transmitting an AG value and a UE, which are used to solve a problem in the prior art that data transmission interruption of a UE2 may be caused because a network side device stops transmission of all UEs after sending an AG to a UE1 through a new E-AGCH and then starts data transmission by sending an AG to another UE2 at a next moment.
A first aspect of the present disclosure provides a method for transmitting an AG value, including receiving, by a UE, a conventional E-AGCH and a newly-added grant value detecting E-AGCH that are sent by a network side device, and detecting, by the UE, AG information carried on at least one channel of the conventional E-AGCH and the grant value detecting E-AGCH, and controlling data transmission of the UE according to a detection result.
In a first possible implementation manner, according to the first aspect, detecting, by the UE, AG information carried on at least one channel of the conventional E-AGCH and the grant value detecting E-AGCH, and controlling current data transmission of the UE according to a detection result includes controlling, by the UE, the data transmission according to the first AG information of the UE if the UE detects that the at least one channel of the conventional E-AGCH and the grant value detecting E-AGCH carries first AG information of the UE.
In a second possible implementation manner, according to the first possible implementation manner, if the UE detects that the at least one channel of the conventional E-AGCH and the grant value detecting E-AGCH carries first AG information of the UE, controlling, by the UE, the data transmission according to the first AG information of the UE includes controlling, by the UE, the data transmission according to the first AG information of the UE if the UE detects that the conventional E-AGCH carries the first AG information of the UE, and controlling, by the UE, the data transmission according to the first AG information if the UE detects that the conventional E-AGCH does not carry the first AG information of the UE, and detects that the grant value detecting E-AGCH carries the first AG information of the UE.
In a third possible implementation manner, according to the first aspect, detecting, by the UE, AG information carried on at least one channel of the conventional E-AGCH and the grant value detecting E-AGCH, and controlling current data transmission of the UE according to a detection result includes skipping performing, by the UE, the data transmission if the UE detects that the conventional E-AGCH does not carry the first AG information of the UE and that the grant value detecting E-AGCH carries second AG information of another UE except the UE.
A second aspect of the present disclosure provides a UE, including a receiving module configured to receive a conventional E-AGCH and a newly-added grant value detecting E-AGCH that are sent by a network side device, and a detecting module configured to detect AG information carried on at least one channel of the conventional E-AGCH and the grant value detecting E-AGCH, and control data transmission of the UE according to a detection result.
In a first possible implementation manner, according to the second aspect, the detecting module is further configured to control the data transmission according to the first AG information of the UE if it is detected that the at least one channel of the conventional E-AGCH and the grant value detecting E-AGCH carries first AG information of the UE.
In a second possible implementation manner, according to the first possible implementation manner, the detecting module is further configured to control the data transmission according to the first AG information of the UE if it is detected that the conventional E-AGCH carries the first AG information of the UE, and control the data transmission according to the first AG information if it is detected that the conventional E-AGCH does not carry the first AG information of the UE, and if it is detected that the grant value detecting E-AGCH carries the first AG information of the UE.
In a third possible implementation manner, according to the second aspect, the detecting module is further configured to skip performing the data transmission if it is detected that the conventional E-AGCH does not carry the first AG information of the UE and that the grant value detecting E-AGCH carries second AG information of another UE except the UE.
According to the method for transmitting an AG value and the UE in embodiments of the present disclosure, the UE receives a conventional E-AGCH sent by a network side device, and receives a grant value detecting E-AGCH sent by the network side device, and the UE performs a data transmission operation according to the AG if the UE determines that at least one channel of the conventional E-AGCH and the grant value detecting E-AGCH carries an AG value of the UE. Using the technical solutions provided by the embodiments of the present disclosure, continuity of data transmission of the UE can be ensured, and transmission efficiency is improved.
To describe the technical solutions in the embodiments of the present disclosure or in the prior art more clearly, the following briefly introduces the accompanying drawings required for describing the embodiments or the prior art. The accompanying drawings in the following description show some embodiments of the present disclosure, and persons of ordinary skill in the art may still derive other drawings from these accompanying drawings without creative efforts.
To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the following clearly describes the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. The described embodiments are some but not all of the embodiments of the present disclosure. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present disclosure without creative efforts shall fall within the protection scope of the present disclosure.
Technologies described in this specification may be applied to various communications systems, for example, current second generation (2G) and third generation (3G) communications systems and a next-generation communications system, for example, a global system for mobile communications (GSM), a code division multiple access (CDMA) system, a time division multiple access (TDMA) system, a wideband code division multiple access (WCDMA) system, a frequency division multiple access (FDMA) system, an orthogonal frequency-division multiple access (OFDMA) system, a single-carrier FDMA (SC-FDMA) system, a general packet radio service (GPRS) system, a long term evolution (LTE) system, and other communications systems.
A UE involved in this application may be a wireless terminal or a wired terminal. The wireless terminal may refer to a device that provides voice and/or data connectivity for a user, a handheld device with a wireless connection function, or another processing device connected to a wireless modem. The wireless terminal may communicate with one or more core networks through a radio access network (RAN). The wireless terminal may be a mobile terminal, for example, a mobile phone (also referred to as a “cellular” phone) or a computer with a mobile terminal, and may be, for example, a portable, pocket-sized, handheld, computer built-in, or in-vehicle mobile apparatus, which exchanges voice and/or data with the RAN. For example, it may be a device such as a personal communication service (PCS) phone, a cordless telephone set, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, or a personal digital assistant (PDA). The wireless terminal may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile terminal, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, or a UE.
A network side device involved in this application may be a base station, a radio network controller (RNC), or the like, or may be a functional module in the foregoing various devices on a RAN side.
The base station (for example, an access point) may be a device that communicates with the wireless terminal through one or more sectors on an air interface on an access network. The base station may be configured to perform mutual conversion between a received air frame and an Internet Protocol (IP) packet, serving as a router between the wireless terminal and another part of the access network, where the other part of the access network may include an IP network. The base station may further coordinate attribute management on the air interface. For example, the base station may be a base station (Base Transceiver Station (BTS)) in the GSM or the CDMA, or may be a base station (NodeB) in the WCDMA, or may be an evolved base station (evolved Node B: NodeB, eNB, or e-NodeB) in the LTE, which is not limited in this application.
The base station controller may be a base station controller (BSC) in the GSM or the CDMA, or may be a RNC in the WCDMA, which is not limited in this application.
Step S100: A UE receives a conventional E-AGCH and a newly-added grant value detecting E-AGCH that are sent by a network side device.
Step S101: The UE detects AG information carried on the at least one channel of the conventional E-AGCH and the grant value detecting E-AGCH, and controls data transmission of the UE according to a detection result.
Furthermore, the UE may first receive the conventional E-AGCH sent by the network side device, where the conventional E-AGCH receive the newly-added grant value detecting E-AGCH sent by the network side device, where the newly-added grant value detecting E-AGCH is referred to as a grant value detecting E-AGCH for short below. It should be noted that, the conventional E-AGCH herein is the conventional E-AGCH in the prior art, and the grant value detecting E-AGCH is the new E-AGCH in the background. The foregoing conventional E-AGCH and grant value detecting E-AGCH are channels that are used by the network side device to send the AG information to the UE, and may occupy a same time-frequency resource or occupy different time-frequency resources, which is not limited herein.
Further, after receiving the foregoing two channels, that is, the conventional E-AGCH and the grant value detecting E-AGCH, the UE may detect the AG information carried on the at least one channel of the conventional E-AGCH and the grant value detecting E-AGCH, and control the data transmission of the UE according to the detection result.
Optionally, the UE controls the data transmission according to the first AG information on the conventional E-AGCH if the UE detects that the conventional E-AGCH carries first AG information, where the foregoing first AG information represents AG information of the UE, the UE controls the data transmission according to the first AG information on the grant value detecting E-AGCH if the UE does not detect the first AG information on the conventional E-AGCH, and detects that the grant value detecting E-AGCH carries the first AG information, the UE may control the data transmission separately according to the first AG information carried on the two E-AGCHs, or may control the data transmission only according to the first AG information carried on the conventional E-AGCH if the UE detects that both the conventional E-AGCH and the grant value detecting E-AGCH carry the AG information of the UE itself, and the UE may also control the data transmission according to the first AG information carried on an E-AGCH on which the data transmission that is being performed by the UE currently is started if the UE is performing the data transmission.
In this embodiment, a UE receives a conventional E-AGCH and a newly-added grant value detecting E-AGCH that are sent by a network side device, and detects AG information carried on at least one channel of the conventional E-AGCH and the grant value detecting E-AGCH, and controls data transmission of the UE according to a detection result. Therefore, continuity of the data transmission can be ensured, and transmission efficiency is improved.
Step S200: A network side device sends AG information to a UE through at least one channel of a conventional E-AGCH and a grant value detecting E-AGCH.
The foregoing step is performed by the network side device. In practice, the network side device may be a device that can communicate with the UE, such as a base station or a relay.
Furthermore, the network side device may deliver a scheduling permission value to the UE when scheduling the UE, to achieve an objective of scheduling uplink transmit power of the UE. In this embodiment, for any UE, the network side device may deliver the AG information to the UE through the at least one channel of the conventional E-AGCH and the grant value detecting E-AGCH. That is, the network side device may deliver the AG information to the UE through the conventional E-AGCH, may deliver the AG information to the UE through the grant value detecting E-AGCH, or may deliver the AG information to the UE through the conventional E-AGCH and the grant value detecting E-AGCH.
Further, for any UE, the foregoing AG information may be AG information of the UE itself, or may be AG information of another UE except the UE.
It should be noted that, in practice, the foregoing two E-AGCHs are channels that are used by the network side device to send the AG information to the UE, and may occupy a same time-frequency resource or occupy different time-frequency resources, which is not limited herein. Optionally, in a WCDMA system, the network side device may send the foregoing conventional E-AGCH and grant value detecting E-AGCH using an uplink high rise over thermal (RoT) dedicated secondary carrier.
Step S201: The UE receives the conventional E-AGCH and the newly-added grant value detecting E-AGCH that are sent by the network side device.
Description of the step S201 is same as that of step S100, and details are not described herein again.
Step S202: The UE detects AG information carried on the at least one channel of the conventional E-AGCH and the grant value detecting E-AGCH.
Furthermore, because the network side device sends the AG information to the UE through the at least one channel of the conventional E-AGCH and the grant value detecting E-AGCH, after receiving the foregoing two E-AGCHs, the UE may detect the AG information on the foregoing two E-AGCHs.
Further, because each UE has a dedicated identity (ID) for detecting an AG of the UE, the UE may decode the foregoing two E-AGCHs, to detect whether there is AG information that belongs to the UE on the two E-AGCHs. Furthermore, during detection, the UE may detect the conventional E-AGCH and the grant value detecting E-AGCH separately.
For the conventional E-AGCH, the UE only needs to detect whether there is the AG information that belongs to the UE on the conventional E-AGCH. If the UE fails in the decoding, it indicates that the conventional E-AGCH does not carry first AG information of the UE, and if the UE succeeds in the decoding, it indicates that the conventional E-AGCH carries the first AG information of the UE. It should be noted that, the UE detects that the conventional E-AGCH does not carry the first AG information of the UE which includes two situations: the conventional E-AGCH does not carry AG information, or the conventional E-AGCH carries AG information, but the AG information is not the foregoing first AG information but is second AG information of another UE except the UE.
For the grant value detecting E-AGCH, the UE may first detect whether there is AG information on the grant value detecting E-AGCH, and the UE further detects whether the AG information is the first AG information of the UE itself if there is AG information on the grant value detecting E-AGCH.
Further, the UE may first perform information detection on the grant value detecting E-AGCH, for example, detect a signal-to-noise ratio of the grant value detecting E-AGCH. It is considered that the grant value detecting E-AGCH carries the AG information if the signal-to-noise ratio is higher than a preset threshold, and it is considered that the grant value detecting E-AGCH does not carry the AG information if the signal-to-noise ratio is lower than the foregoing preset threshold. The UE decodes the grant value detecting E-AGCH when the UE detects that the grant value detecting E-AGCH carries the AG information. It indicates that the grant value detecting E-AGCH does not carry the first AG information of the UE if the UE fails in the decoding. Because the grant value detecting E-AGCH carries the AG information in this case, the UE may determine that the grant value detecting E-AGCH carries the second AG information of the other UE except the UE in this case. It indicates that the grant value detecting E-AGCH carries the first AG information of the UE if the UE succeeds in the decoding.
For the grant value detecting E-AGCH, the UE may also first detect whether the AG information on the grant value detecting E-AGCH is the first AG information of the UE, and the UE further detects whether the AG information is the second AG information of the other UE except the UE if the AG information on the grant value detecting E-AGCH is not the first AG information of the UE itself.
Further, the UE may first decode the grant value detecting E-AGCH, it indicates that the grant value detecting E-AGCH carries the first AG information of the UE if the UE succeeds in the decoding, and it indicates that the grant value detecting E-AGCH does not carry the first AG information of the UE if the UE fails in the decoding. In this case, the UE may further detect whether the AG information is the second AG information of the other UE except the UE. For example, the UE may further perform information detection on the grant value detecting E-AGCH, for example, detect a signal-to-noise ratio of the grant value detecting E-AGCH. It indicates that AG information on the grant value detecting E-AGCH is the second AG information of the other UE except the UE if the signal-to-noise ratio is higher than a preset threshold, and it indicates that the grant value detecting E-AGCH does not carry the AG information if the signal-to-noise ratio is lower than the foregoing preset threshold.
Certainly, an order in which the UE detects the foregoing two E-AGCHs is not limited herein. Optionally, in practice, the UE may first detect AG information carried on the conventional E-AGCH and then detect AG information carried on the grant value detecting E-AGCH according to a descending order of priorities of the conventional E-AGCH and the grant value detecting E-AGCH, the UE directly controls the data transmission according to an AG index value in the first AG information if the detection result is that the conventional E-AGCH carries the first AG information that belongs to the UE, and the UE controls the data transmission according to a detection result on the grant value detecting E-AGCH if the detection result is that the conventional E-AGCH does not carry the first AG information that belongs to the UE.
Optionally, the UE may also detect the AG information on the two E-AGCHs separately, and determine a data transmission operation of the UE according to a detection result, and an execution sequence is not limited herein. The UE performs a data transmission operation according to the AG information on the conventional E-AGCH without paying attention to a detection result on the grant value detecting E-AGCH if the UE detects the AG information of the UE on both the two E-AGCHs, or detects the AG information of the UE on the conventional E-AGCH and detects AG information of another UE on the grant value detecting E-AGCH, or detects the AG information of the UE on the conventional E-AGCH and does not detect the AG information on the grant value detecting E-AGCH.
Step S203: The UE controls data transmission of the UE according to a detection result.
Furthermore, after detecting the conventional E-AGCH and the grant value detecting E-AGCH, the UE may control the data transmission of the UE according to the detection result.
The following describes in detail, according to different results on detection performed by the UE on the foregoing two E-AGCHs in step S202, a process of controlling, by the UE, the data transmission of the UE.
(1) If the UE detects that the at least one channel of the conventional E-AGCH and the grant value detecting E-AGCH carries the first AG information of the UE, the UE controls the data transmission according to the foregoing first AG information.
Further, the UE controls the data transmission according to the foregoing first AG information if the UE detects that the conventional E-AGCH carries the first AG information of the UE, the UE controls the data transmission according to the foregoing first AG information if the UE detects that the conventional E-AGCH does not carry the foregoing first AG information, and detects that the grant value detecting E-AGCH carries the foregoing first AG information, and optionally, the UE may control the data transmission according to the first AG information carried on the conventional E-AGCH without paying attention to a detection result on the grant value detecting E-AGCH if the UE detects that the conventional E-AGCH carries the first AG information of the UE, and detects that the grant value detecting E-AGCH also carries the first AG information of the UE.
For example, controlling the data transmission according to the first AG information refers to that, if an AG value index in the first AG information is 0 or 1, it indicates stopping the data transmission, that is, if the UE is currently performing the data transmission, the data transmission is stopped, and the data transmission is still not performed if the UE does not perform the data transmission, it indicates different transmit power offsets if the AG value index in the first AG information is any integer between 2 and 31, the UE adjusts a transmit power offset of the current data transmission according to the foregoing first AG information if the UE is performing the data transmission, and the UE starts the data transmission according to a transmit power offset corresponding to the foregoing AG if the UE does not perform the data transmission.
(2) The UE does not perform the data transmission if the UE detects that the conventional E-AGCH does not carry the first AG information of the UE and that the grant value detecting E-AGCH carries the second AG information of the other UE except the UE.
Further, the UE does not perform the data transmission if the UE detects that grant value detecting E-AGCH of the UE carries the second AG information of the other UE except the UE and that the conventional E-AGCH does not carry the AG information, and the UE does not perform the data transmission if the UE detects that grant value detecting E-AGCH of the UE carries the second AG information of the other UE except the UE and that the conventional E-AGCH carries the second AG information of the other UE except the UE.
It should be noted that, that the UE does not perform the data transmission refers to that, if the UE is currently performing the data transmission, the data transmission is stopped, and if the UE does not perform the data transmission, the data transmission is still not performed. The foregoing interaction process between the network side device and the UE is described below using an example.
As shown in
Because the network side device does not send AG information in the following third to seventh timeslots, the UEs keep their current data transmission operations unchanged.
In the eighth timeslot, the network side device continues to send AG information of the UE1 through the grant value detecting E-AGCH, and data transmission of the UE1 may be re-started in a next timeslot. At the same time, the UE2 and the UE4 receive AG information of another UE from the grant value detecting E-AGCH, and therefore, the UE2 and the UE4 stop their own data transmission. In addition, in this case, if it further needs to schedule the UE3, AG information of the UE3 can only be delivered in the ninth timeslot through the conventional E-AGCH. However, for the UE3, the UE3 does not perform data transmission in the ninth timeslot. That is, only one UE performs data transmission in the timeslot. In conclusion, when the network side device performs UE switching in the third timeslot and the ninth timeslot, that is, when the UE2 and the UE4 are scheduled in the third timeslot, and the UE1 and the UE3 are scheduled in the ninth timeslot, data transmission of the UEs is interrupted.
Relatively, as shown in
Because the network side device does not send AG information in the following third to seventh timeslots, the UEs keep their current data transmission operations unchanged.
In the eighth timeslot, the network side device sends an AG information of the UE3 through the conventional E-AGCH, and sends AG information of the UE1 through the grant value detecting E-AGCH. Then, when the four UEs receive the foregoing two pieces of AG information in this case, the UEs have different data transmission operations separately. For the UE1, because the UE1 only receives its own AG information from the grant value detecting E-AGCH, and since UE1 stopped data transmission in the third timeslot, the UE1 re-starts the data transmission in a next timeslot according to the AG information. For the UE2 and the UE4, because the AG information on the two channels does not belong to the UE2 or the UE4 in this case, it can be known from the foregoing description that, the UE2 and UE4 stop the data transmission in a next timeslot. For the UE3, the UE3 receives its own AG information from the conventional E-AGCH, the AG information on the grant value detecting E-AGCH does not belong to the UE3, and since the UE3 stopped the data transmission in the third timeslot, the UE3 performs the data transmission according to the AG information on the conventional E-AGCH, that is, re-starts the data transmission in a next timeslot according to the AG information.
It should be noted that, the four UEs in the foregoing example may be any UEs in a network, which is not limited herein. In addition, in the solution described in the example, the network side device may schedule the UE2 and the UE4 in the third timeslot, or switch the UE2 and the UE4 to the UE3 and the UE1 in the ninth timeslot. In practice, the network side device may select, according to an actual situation, to send AG information of a UE on the foregoing two E-AGCHs, to achieve an objective of flexibly scheduling UEs.
It can be seen from the foregoing example that, the network side device sends the AG information of the UE2 and the AG information of the UE4 to the UE2 and the UE4 respectively in the second timeslot through the conventional E-AGCH and the grant value detecting E-AGCH, and a priority rule between different E-AGCHs is pre-defined such that both the UE2 and the UE4 can perform data transmission according to their own AG information without data transmission interruption. That is, there is no idle timeslot during the data transmission of the UE2 and the UE4. Similarly, the network side device sends the AG information of the UE3 and the AG information of the UE1 to the UE3 and the UE1 respectively in the eighth timeslot through the conventional E-AGCH and the grant value detecting E-AGCH in order to ensure that both the UE3 and the UE1 can perform data transmission according to their own AG information without data transmission interruption when UEs are switched from the UE2 and the UE4 to the UE3 and the UE1, thereby ensuring continuity of the data transmission of the UEs and improving transmission efficiency.
Further, the receiving module 10 is configured to receive a conventional E-AGCH and a newly-added grant value detecting E-AGCH that are sent by a network side device, and the detecting module 11 is configured to detect AG information carried on at least one channel of the conventional E-AGCH and the grant value detecting E-AGCH, and control data transmission of the UE according to a detection result.
The detecting module 11 is further configured to control the data transmission according to the first AG information of the UE if it is detected that the at least one channel of the conventional E-AGCH and the grant value detecting E-AGCH carries first AG information of the UE.
The detecting module 11 is further configured to control the data transmission according to the first AG information of the UE if it is detected that the conventional E-AGCH carries the first AG information of the UE, and control the data transmission according to the first AG information if it is detected that the conventional E-AGCH does not carry the first AG information of the UE, and it is detected that the grant value detecting E-AGCH carries the first AG information of the UE.
The detecting module 11 is further configured to skip performing the data transmission if it is detected that the conventional E-AGCH does not carry the first AG information of the UE and that the grant value detecting E-AGCH carries second AG information of another UE except the UE.
The detecting module 11 is further configured to, first detect AG information carried on the conventional E-AGCH and then detect AG information carried on the grant value detecting E-AGCH according to a descending order of priorities of the conventional E-AGCH and the grant value detecting E-AGCH.
In this embodiment, a UE 1 receives a conventional E-AGCH and a newly-added grant value detecting E-AGCH that are sent by a network side device, and detects AG information carried on at least one channel of the conventional E-AGCH and the grant value detecting E-AGCH, and controls data transmission of the UE 1 according to a detection result. Therefore, continuity of the data transmission can be ensured, and transmission efficiency is improved.
Further, the memory 20 is configured to store an instruction, and the processor 21 is configured to run the instruction stored in the memory 20, to perform the method for transmitting an AG value according to the embodiment corresponding to
In this embodiment, a UE 2 receives a conventional E-AGCH and a newly-added grant value detecting E-AGCH that are sent by a network side device, and detects AG information carried on at least one channel of the conventional E-AGCH and the grant value detecting E-AGCH, and controls data transmission of the UE 2 according to a detection result. Therefore, continuity of the data transmission can be ensured, and transmission efficiency is improved.
Step S300: A UE receives multiple newly-added E-AGCHs sent by a network side device.
Step S301: The UE detects AG information carried on one channel of the multiple newly-added E-AGCHs, and controls data transmission of the UE according to a detection result.
It should be noted that, the newly-added E-AGCH herein is the new E-AGCH in the background, and it may also become a newly-added grant value detecting E-AGCH. A difference between the newly-added E-AGCH and a conventional E-AGCH lies in that, for the conventional E-AGCH, when a UE detects an AG that belongs to the UE on the conventional E-AGCH, the UE controls data transmission of the UE according to the AG on the channel, while for the newly-added E-AGCH, a UE not only may detect the AG that belongs to the UE on the newly-added E-AGCH and control data transmission of the UE according to the detected AG, but also may detect an AG of another UE on the newly-added E-AGCH and stop, when detecting the AG of the other UE, data transmission that is performed currently. The foregoing multiple newly-added E-AGCHs are channels that are used by the network side device to send the AG information to the UE, and may occupy a same time-frequency resource or occupy different time-frequency resources, which is not limited herein.
Further, after receiving the foregoing multiple newly-added E-AGCHs, the UE may detect AG information carried on one channel of the multiple newly-added E-AGCHs, and controls the data transmission of the UE according to the detection result.
Optionally, the UE controls the data transmission according to the first AG information if the UE detects that one channel of the multiple newly-added E-AGCHs carries first AG information, where the first AG information represents AG information of the UE, and the UE does not perform the data transmission if the UE detects that none of the multiple newly-added E-AGCHs carries the first AG information of the UE and that one channel of the multiple newly-added E-AGCHs carries second AG information of another UE except the UE. It should be noted that, that the UE does not perform data transmission refers to that, if the UE is currently performing the data transmission, the data transmission is stopped, and if the UE does not perform the data transmission, the data transmission is still not performed.
In this embodiment, a UE receives multiple newly-added E-AGCHs sent by a network side device, and detects AG information carried on at least one channel of the multiple newly-added E-AGCHs, and controls data transmission of the UE according to a detection result. Therefore, continuity of the data transmission can be ensured, and transmission efficiency is improved.
The receiving module 30 is configured to receive multiple newly-added E-AGCHs sent by a network side device.
The detecting module 31 is configured to detect AG information carried on one channel of the multiple newly-added E-AGCHs, and control data transmission of the UE according to a detection result.
The detecting module 31 is further configured to control the data transmission of the UE according to the first AG information when it is detected that one channel of the multiple newly-added E-AGCHs carries first AG information of the UE, or control the UE to skip performing the data transmission when it is detected that none of the multiple newly-added E-AGCHs carries the first AG information of the UE and that one channel of the multiple newly-added E-AGCHs carries second AG information of another UE except the UE.
In this embodiment, a UE 3 receives multiple newly-added E-AGCHs sent by a network side device, and detects AG information carried on at least one channel of the multiple newly-added E-AGCHs, and controls data transmission of the UE 3 according to a detection result. Therefore, continuity of the data transmission can be ensured, and transmission efficiency is improved.
Further, the memory 40 is configured to store an instruction, and the processor 41 is configured to run the instruction stored in the memory 40, to perform the method for transmitting an AG value according to the embodiment corresponding to
In this embodiment, a UE 4 receives multiple newly-added E-AGCHs sent by a network side device, and detects AG information carried on one channel of the multiple newly-added E-AGCHs, and controls data transmission of the UE 4 according to a detection result. Therefore, continuity of the data transmission can be ensured, and transmission efficiency is improved.
Step S400: A UE receives a newly-added E-AGCH and a first channel that are sent by a network side device.
Step S401: The UE detects AG information carried on the newly-added E-AGCH and grant information carried on the first channel, and controls data transmission of the UE according to a detection result.
Further, it should be noted that, the newly-added E-AGCH herein is the new E-AGCH in the background. The UE stops data transmission that is performed currently when detecting an AG of another UE on the newly-added E-AGCH. In addition, in the prior art, when controlling the data transmission, the UE maintains a serving grant (SG) value, and then controls the data transmission according to the SG value. The SG value is generally used to calculate a power upper limit value with which the UE may send scheduled data. The UE updates the SG value maintained by the UE with the AG value, and then controls the data transmission when the network side device notifies the UE of an AG value. The detection result of step S401 may include the following several situations.
S401A: The UE controls the data transmission according to the first AG information when the UE detects that the newly-added E-AGCH carries first AG information of the UE.
S401B: The UE controls the data transmission according to a detection result of the grant information carried on the first channel when the UE detects that the newly-added E-AGCH carries second AG information of another UE except the UE.
S401C: The UE controls the data transmission according to a detection result of the grant information carried on the first channel when the UE detects that the newly-added E-AGCH does not carry any information.
In a possible implementation manner, the situation of S401B may further include that the UE obtains an updated SG value according to the grant information and a current SG value, and controls the data transmission according to the updated SG value when the UE detects that the newly-added E-AGCH carries the second AG information of the other UE except the UE and detects that the first channel carries the grant information, and the UE stops the data transmission when the UE detects that the newly-added E-AGCH carries the second AG information of the other UE except the UE and detects that the first channel does not carry the grant information, where the grant information instructs to increase or decrease the current SG value, to obtain the updated SG value. It should be noted that, an enhanced-dedicated channel (E-DCH) relative grant channel (E-RGCH) may be reused as the first channel herein. For example, the grant information carried by the E-RGCH may be instruction information, namely, “+1” or “−1”, where +1 instructs to increase the SG value currently maintained by the UE, and −1 instructs to decrease the SG value currently maintained by the UE. Persons skilled in the art should know that, an amplitude of the increasing or decreasing may be specified in a protocol. It should be known that, the E-RGCH may be represented using a channelization code and a signature sequence, and different E-RGCHs may be distinguished using different channelization codes, or may be distinguished using different signature sequences, or may be distinguished using different channelization codes and different signature sequences at the same time. A conventional E-RGCH may be used to adjust a value of an SG In this implementation manner, the conventional E-RGCH may instruct the UE to increase or decrease a current SG according to a RG value, to obtain a new SG value if the conventional E-RGCH is reused as the first channel. In addition, a new E-RGCH may further be used as the first channel, that is, a network allocates two E-RGCHs to each UE: one is the conventional E-RGCH, used to adjust the value of the SG, and the other is the new E-RGCH, specially used to instruct the UE not to stop the data transmission when the UE detects that the newly-added E-AGCH carries the second AG information of the other UE except the UE, and to control a value of a grant that is used when the data transmission is performed.
In another possible implementation manner, the situation of S401B may further include that the UE controls the data transmission according to the grant information when the UE detects that the newly-added E-AGCH carries the second AG information of the other UE except the UE and detects that the first channel carries the grant information, where the grant information instructs to continue performing the transmission according to a current SG value of the UE, and the UE stops the data transmission when the UE detects that the newly-added E-AGCH carries the second AG information of the other UE except the UE and that the first channel does not carry the grant information.
In this case, if the first channel is a conventional E-RGCH, the E-RGCH is used to instruct to continue performing the transmission according to the current SG value of the UE when the UE detects that the newly-added E-AGCH carries the second AG information of the other UE except the UE, and the E-RGCH maintains an original definition, and is used to adjust a value of an SG when the UE detects that the newly-added E-AGCH does not carry any information. If the first channel is a new E-RGCH, that is, a network allocates two E-RGCHs to each UE: one is the conventional E-RGCH, used to adjust the value of the SG, and the other is the new E-RGCH, specially used to instruct the UE to continue performing the transmission according to the current SG value of the UE when the UE detects that the newly-added E-AGCH carries the second AG information of the other UE except the UE, and when the UE detects that the newly-added E-AGCH does not carry any information, the new E-RGCH is ineffective, and a user may not pay attention to information carried on the new E-RGCH even if the user receives the new E-RGCH.
Further, when a network side device delivers an E-AGCH that carries the second AG information of the other UE except the UE, information, namely “+1” or “−1”, may be mapped on the E-RGCH in a fixed manner, and the UE is notified in advance, in a manner of protocol predefining or delivering using network side high-layer signaling, or the like, of whether the information is mapped in order to improve a probability that the UE detects grant information on the E-RGCH. The E-RGCH herein includes the conventional E-RGCH or the new E-RGCH.
In still another possible implementation manner, the situation of S401B may further include that the UE stops the data transmission when the UE detects that the newly-added E-AGCH carries the second AG information of the other UE except the UE and detects that the first channel carries the grant information, where the grant information instructs to stop the data transmission, and the UE continues performing the data transmission according to a current SG value when the UE detects that the newly-added E-AGCH carries the second AG information of the other UE except the UE and that the first channel does not carry the grant information.
In this case, if the first channel is a conventional E-RGCH, the E-RGCH is used to instruct the UE to stop the data transmission when the UE detects that the newly-added E-AGCH carries the second AG information of the other UE except the UE, and the E-RGCH maintains an original definition, and is used to adjust a value of an SG when the UE detects that the newly-added E-AGCH does not carry any information. If the first channel is a new E-RGCH, that is, a network allocates two E-RGCHs to each UE: one is the conventional E-RGCH, used to adjust the value of the SG, and the other is the new E-RGCH, specially used to instruct the UE to stop the data transmission when the UE detects that the newly-added E-AGCH carries the second AG information of the other UE except the UE, and when the UE detects that the newly-added E-AGCH does not carry any information, the new E-RGCH is ineffective, and a user may not pay attention to information carried on the new E-RGCH even if the user receives the new E-RGCH.
Further, when a network side device delivers an E-AGCH that carries the second AG information of the other UE except the UE, information, namely “+1” or “−1”, may be mapped on the E-RGCH in a fixed manner, and the UE is notified in advance, in a manner of protocol predefining or delivering using network side high-layer signaling, or the like, of whether the information is mapped in order to improve a probability that the UE detects grant information on the E-RGCH. The E-RGCH herein includes the conventional E-RGCH or the new E-RGCH.
In yet another possible implementation manner, the situation of S401B includes that the UE continues performing the transmission according to a current SG value when the UE detects that the newly-added E-AGCH carries the second AG information of the other UE except the UE and detects that the first channel carries the grant information, and the grant information is a first grant instruction, and the UE stops the data transmission when the UE detects that the newly-added E-AGCH carries the second AG information of the other UE except the UE and detects that the first channel carries the grant information, and the grant information is a second grant instruction, where the first grant instruction instructs the UE to continue performing the data transmission according to the current SG value, and the second grant instruction instructs the UE to stop performing the data transmission.
In this case, if the first channel is a conventional E-RGCH, the E-RGCH is used to instruct the UE to continue or stop the data transmission when the UE detects that the newly-added E-AGCH carries the second AG information of the other UE except the UE, and the E-RGCH maintains an original definition, and is used to adjust a value of an SG when the UE detects that the newly-added E-AGCH does not carry any information. If the first channel is a new E-RGCH, that is, a network allocates two E-RGCHs to each UE: one is the conventional E-RGCH, used to adjust the value of the SG, and the other is the new E-RGCH, specially used to instruct the UE to continue or stop the data transmission when the UE detects that the newly-added E-AGCH carries the second AG information of the other UE except the UE, and when the UE detects that the newly-added E-AGCH does not carry any information, the new E-RGCH is ineffective, and a user may not pay attention to information carried on the new E-RGCH even if the user receives the new E-RGCH.
Further, when the first channel is an E-RGCH, grant information sent by the E-RGCH may be divided into a first grant instruction and a second grant instruction, and the UE is notified of the first grant instruction and the second grant instruction in advance in a manner of protocol predefining or delivering using network side high-layer signaling in order to improve a probability that the UE detects grant information on the E-RGCH. Exemplarily, when the first grant instruction is “+1”, the second grant instruction is “−1” correspondingly, or when the first grant instruction is “−1”, the second grant instruction is “+1” correspondingly. The E-RGCH herein includes the conventional E-RGCH or the new E-RGCH.
Using the method in this embodiment, when multi-user transmission is supported, it is avoided that AGs are frequently delivered to re-start interrupted data transmission of a UE, and a downlink signaling overhead is reduced, and a data transmission interval of the UE caused because multiple AGs cannot be delivered simultaneously is avoided, and an uplink network capacity is improved.
In this embodiment, the processor 51 is further configured to control the data transmission according to the first AG information when it is detected that the newly-added E-AGCH carries first AG information of the UE, control the data transmission according to a detection result of the grant information carried on the first channel when it is detected that the newly-added E-AGCH carries second AG information of another UE except the UE, and control the data transmission according to the detection result of the grant information carried on the first channel when it is detected that the newly-added E-AGCH does not carry any information.
In an implementation manner, when the processor 51 detects that the newly-added E-AGCH carries the second AG information of the other UE except the UE, the processor 51 may be further configured to obtain an updated SG value according to the grant information and a current SG value, and control the data transmission according to the updated SG value when it is detected that the first channel carries the grant information, or stop the data transmission when it is detected that the first channel does not carry the grant information, where the grant information instructs to increase or decrease the current SG value. For example, when an E-RGCH is reused as the first channel, the grant information carried by the E-RGCH may be two pieces of instruction information, namely, “+1” or “−1”, where +1 instructs to increase the SG value currently maintained by the UE, and −1 instructs to decrease the SG value currently maintained by the UE.
In another implementation manner, when the processor 51 detects that the newly-added E-AGCH carries the second AG information of the other UE except the UE, the processor 51 may be further configured to control the data transmission according to the grant information when it is detected that the first channel carries the grant information, or stop the data transmission when it is detected that the first channel does not carry the grant information, where the grant information instructs to continue performing the transmission according to a current SG value of the UE.
In still another implementation manner, when the processor 51 detects that the newly-added E-AGCH carries the second AG information of the other UE except the UE, the processor 51 may be further configured to stop the data transmission when it is detected that the first channel carries the grant information, where the grant information instructs to stop the data transmission, continue performing the data transmission according to a current SG value when it is detected that the first channel does not carry the grant information, perform the data transmission according to the current SG value when it is detected that the first channel carries the grant information, and the grant information is a first grant instruction, and stop the data transmission when it is detected that the first channel carries the grant information, and the grant information is a second grant instruction, where the first grant instruction is used to instruct to continue performing the data transmission according to the current SG value, and the second grant instruction is used to instruct to stop performing the data transmission.
According to the UE provided by this embodiment, when multi-user transmission is supported, it is avoided that AGs are frequently delivered to re-start interrupted data transmission of the UE, and a downlink signaling overhead is reduced, and a data transmission interval of the UE caused because multiple AGs cannot be delivered simultaneously is avoided, and an uplink network capacity is improved.
Step S500: A UE receives a newly-added E-AGCH and a downlink high speed-shared control channel (HS-SCCH) that are sent by a network side device.
Step S501: The UE detects AG information carried on the newly-added E-AGCH and HS-SCCH order information carried on the HS-SCCH, and controls data transmission of the UE according to a detection result.
In an implementation manner, Step S501 may further include continuing performing, by the UE, the data transmission according to a current SG value when the UE detects that the newly-added E-AGCH carries second AG information of another UE except the UE, and when the UE detects that the HS-SCCH order information carried on the HS-SCCH instructs the UE to continue the transmission, and stopping, by the UE, the data transmission when the UE detects that the newly-added E-AGCH carries the second AG information of the other UE except the UE, and when the UE detects that the HS-SCCH does not carry the HS-SCCH order information.
In another implementation manner, step S501 may further include stopping, by the UE, the data transmission when the UE detects that the newly-added E-AGCH carries second AG information of another UE except the UE, and when the UE detects that HS-SCCH order information carried on the HS-SCCH instructs the UE to stop the data transmission, and continuing performing, by the UE, the data transmission according to a current SG value when the UE detects that the newly-added E-AGCH carries the second AG information of the other UE except the UE, and when the UE detects that the HS-SCCH does not carry the HS-SCCH order information. It can be seen that, a difference between this implementation manner and the previous implementation manner lies in whether the HS-SCCH order information instructs to continue transmission or stop transmission.
It should be noted that, the UE in this embodiment may further include a receiver and a processor, which respectively perform functions of steps S500 and S501. Reference may be made to division of the UE in
Using the method in this embodiment, when multi-user transmission is supported, it is avoided that AGs are frequently delivered to re-start interrupted data transmission of a UE, and a downlink signaling overhead is reduced, and a data transmission interval of the UE caused because multiple AGs cannot be delivered simultaneously is avoided, and an uplink network capacity is improved.
Step S600: A UE receives configuration information, sent by a network side device, of an E-AGCH, where the configuration information includes channelization code information and attribute information of the E-AGCH, and the attribute information represents whether the E-AGCH is a conventional E-AGCH or a newly-added E-AGCH.
Step S601: The UE detects, according to the channelization code information, AG information carried on the E-AGCH, and controls data transmission of the UE according to a detection result and the attribute information.
In step S601, controlling the data transmission of the UE according to a detection result and the attribute information may further include updating a current SG value using the AG information, and performing the data transmission according to an updated SG value when the attribute information indicates that the E-AGCH is a conventional E-AGCH, and the UE detects the AG information on the E-AGCH, continuing performing the data transmission according to the current SG value when the attribute information indicates that the E-AGCH is a conventional E-AGCH, and the UE does not detect the AG information on the E-AGCH, and keeping a state of no data transmission unchanged if no data transmission is performed currently, updating the current SG value using the AG information, and performing the data transmission according to an updated SG value when the attribute information indicates that the E-AGCH is a newly-added E-AGCH, and the UE detects the AG information of the UE on the E-AGCH, stopping the data transmission when the attribute information indicates that the E-AGCH is a newly-added E-AGCH, and the UE detects AG information of another UE except the UE on the E-AGCH, and keeping a state of no data transmission unchanged if no data transmission is performed currently, continuing performing the data transmission according to the current SG value when the attribute information indicates that the E-AGCH is a newly-added E-AGCH, and the UE does not detect the AG information on the E-AGCH, and keeping a state of no data transmission unchanged if no data transmission is performed currently.
The method may further include step S602: The UE receives an instruction order sent by the network side device, and changes the attribute information of the E-AGCH according to the instruction order, where the instruction order is used to instruct the UE to change the attribute information.
In specific implementation, the attribute information may be changed in two manners.
Manner 1: The instruction order explicitly indicates whether attribute information of a changed E-AGCH is a conventional E-AGCH or a newly-added E-AGCH, after receiving the instruction order, the UE changes the original attribute information of the E-AGCH according to the instruction order.
Manner 2: The instruction order indicates that the original attribute information of the E-AGCH needs to be changed, that is, the conventional E-AGCH is changed to a newly-added E-AGCH if the unchanged E-AGCH is a conventional E-AGCH, and/or, the newly-added E-AGCH is changed to the conventional E-AGCH if the unchanged E-AGCH is a newly-added E-AGCH.
In another implementation manner of this embodiment, as shown in
In specific implementation, the channel except the E-AGCH may be an E-RGCH or an HS-SCCH.
Information carried on the E-RGCH may be “+1” or “−1” when the channel is the E-RGCH, which may include a conventional E-RGCH or a new E-RGCH. The UE stops the data transmission as long as the UE receives a corresponding E-RGCH for transferring the data transmission stop order. In addition, a network side device may also map information, namely, “+1” or “−1”, on the E-RGCH in a fixed manner, and the UE is notified in advance, in a manner of protocol predefining or delivering using network side high-layer signaling, or the like, of whether the information is mapped in order to improve a probability that the UE detects the data transmission stop order on the E-RGCH.
When the channel is the HS-SCCH, the data transmission stop order may be delivered in a manner of HS-SCCH order.
It should be noted that, in the foregoing implementation manner, step S602 and step S603 are not necessary, and step S602 and step S603 may be separately combined with step S600 and step S601, or, all of step S600, step S601, step S602, and step S603 may be included in an implementation manner, which is not limited in this embodiment.
It should be noted that, the UE in this embodiment may further include a receiver, which performs corresponding functions of steps S600, S602 and/or S603, and a processor, which performs a function of step S601. Reference may be made to division of the UE in
Using the method in this embodiment, when multi-user transmission is supported, it is avoided that AGs are frequently delivered to re-start interrupted data transmission of a UE, and a downlink signaling overhead is reduced, and a data transmission interval of the UE caused because multiple AGs cannot be delivered simultaneously is avoided, and an uplink network capacity is improved.
Persons of ordinary skill in the art may understand that all or some of the steps of the method embodiments may be implemented by a program instructing relevant hardware. The program may be stored in a computer-readable storage medium. When the program runs, the steps of the method embodiments are performed. The foregoing storage medium includes any medium that can store program code, such as a read-only memory (ROM), a random-access memory (RAM), a magnetic disk, or an optical disc.
Finally, it should be noted that the foregoing embodiments are merely intended for describing the technical solutions of the present disclosure, rather than limiting the present disclosure. Although the present disclosure is described in detail with reference to the foregoing embodiments, persons of ordinary skill in the art should understand that they may still make modifications to the technical solutions described in the foregoing embodiments or make equivalent replacements to some or all technical features thereof, as long as such modifications or replacements do not cause the essence of corresponding technical solutions to depart from the scope of the technical solutions of the embodiments of the present disclosure.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201410043923.5 | Jan 2014 | CN | national |
| 201410130001.8 | Apr 2014 | CN | national |
| 201410193799.0 | May 2014 | CN | national |
| 201410208807.4 | May 2014 | CN | national |
This application is a continuation of international patent application number PCT/CN2015/071470 filed on Jan. 23, 2015, which claims priority to Chinese patent application number 201410043923.5 filed on Jan. 29, 2014, Chinese patent application number 201410130001.8 filed on Apr. 1, 2014, Chinese patent application number 201410193799.0 filed on May 8, 2014, and Chinese patent application number 201410208807.4 filed on May 16, 2014, all of which are incorporated by reference.
| Number | Date | Country | |
|---|---|---|---|
| Parent | PCT/CN2015/071470 | Jan 2015 | US |
| Child | 15223349 | US |
